Science method

Virtualization - Science method

In computing, virtualization (or virtualisation) is the creation of a virtual (rather than actual) version of something, such as a hardware platform, operating system (OS), storage device, or network resources.
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Hi everyone,
In virtual population analysis (VPA) the numbers caught how to calculate based on the length frequency samples.
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Dear Sir,
Thanks for your valuable comment along with useful literatures for VPA.
Regards,
K. Silambarasan
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Augmented Virtuality (AV) already overlays most parts of the users' environment, so I wonder if Diminished Reality (DR) could be seen as a sub-term of AV with a special focus on intentionally removing particular objects. Or is it better to see DR as a feature of Augmented Reality (AR), as in “do only remove few particular objects”? Maybe it is better to say it applies to both and therefore could be seen as a feature of Mixed Reality (MR)? (I use AV, AR, and MR according to Milgram and Kishino's Reality-Virtuality Continuum here)
Does anyone have a reliable definition about the differences and similarities between those concepts?
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Dear Sebastian Felix Rauh,
Here is some useful auxiliary info:
What are the differences among virtual, augmented and mixed reality?
They're pretty big and important.
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Please I need an alternative platform like Barter by Flutterwave that uses virtual US dollar card to make borderless payment on PayPal. Flutterwave virtual card was a nice option since CBN monetary policies made it difficult to make payment outside even through Western Union, MoneyGram but FLUTTERWAVE is not working and I need to pay for article Publication fees.
Any recommendation?
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To avoid this issue, change your publishing strategy.
Consider publishing in closed-access journals or in subscription-based journals. These journals do not require APC fees.
Stay away from open access journals for now until the FX issue is resolved
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For the past two years, I have been presenting at and attending a number of virtual conferences, but I must admit that the experience is unfulfilling. Despite valiant efforts from organizers, there is just no way to get a viable "hallway track", coffee/lunch discussions and social events at virtual conferences. Furthermore, it is difficult to devote whole days to attending virtual lectures when you are not "out of sight - out of mind" of your day job. This is why we decided to make the 2022 CloudCom conference in Bangkok (https://www.2022.cloudcom.org/) a fully in-person event, as used to be the norm pre-Covid. What do you say - are you ready to travel to in-person conferences, or will you stick to virtual events for the foreseeable future?
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I'm ready to go to in person conferences. I am traveling to an internal company conference in a few weeks.
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Today everything has become progressively tech dependent and therefore managerial interviews are no exception. With the passage of Covid 19 it’s a no-brainer that everything is now the domain of high-tech resources however these have their own pros and cons. Obviously for a middle level or a senior level executive it allows the applicant the luxury to avoid publicly walking in for an interview and at the same time keep his physical presence going at his current employment. Secondly the advantage of looking up details from handy resources during these long-drawn interviews. Other advantages like cost savings, adding other interview panel members and lesser delays are all there. The drawbacks are equally compelling. A virtual interview takes away the chance to spot incriminating non-verbal cues which are very important to avoid backing the wrong candidate for these seniors to middle level posts. A serious issue in developed countries relates to allegations of discrimination in using virtual interviews. Common issues like connectivity, walking the candidate through your company and introducing the work culture and loss of information due to poor transmission across the internet are all there. So would you opt for video interviews especially for mid level to senior managerial posts?
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It's a good question! The higher is a position level, the more it is similar to the following situation - to get acquainted with a woman, an online meeting is good enough, but it's not enough to make a marriage proposal!
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I am working on the methodology section for my dissertation and would like to use the Early Trauma Inventory to collect data on retrospective child trauma and the developmental timing of first trauma occurrence. Ideally, I would like to collect all of my dissertation data virtually (online) but am aware of the potential challenges that can arise when collecting trauma data. I am looking for advice/tips/protocols for collecting retrospective trauma data virtually in the safest and most ethical manner.
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If you are thinking of CSA, , may be useful for the reliability of memories. Kamala London
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Hello,
Would anyone have any suggestions for up to date resources regarding the optimum amount of hours for synchronous learning? I am looking for data on optimum number of hours of digital learning per day, per week, and per month.
I would also be interested in any research done on the optimum duration of a virtual classroom.
Any suggestions for up to date literature would be helpful and welcomed.
Thank you!
Aliaa Shaaban
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There are many criteria, the most important of which is the interview and the open book test
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Does anybody know whether there has been published a virtual water calculation in regard to transport of for instance 1 kg of product for 1 km - perhaps where different methods of transport were evaluated?
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Dear Thies Thiemann,
Take a look at info placed below:
One such idea is ‘virtual water’ concept. This is regarded as one of the waters saving methodology in product production. It refers, in the context of trade, to the water used in the production of a good or service. ... The amount of water a product virtually takes to end up in your feast or hand is called virtual water. For example, 1 kg of rice needs 3000 liters of water, but you may not be using water in the same proportion while irrigating the paddy crop, in fact it would be substantially lesser in magnitude. If you know the amount of this virtual water requirement for a particular product, you may avoid producing it in water scarce region and can import it from other water rich regions.
_____
Virtual water is defined as the water embedded in a product, that is, the water consumed during its process of production.
From: Food Safety and Human Health, 2019
_____
Why does 1kg beef require about 15000 liters of water?
_____
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Hello,
I am currently writing my bacherlor's thesis and I am now at my results part. However, I am not quite sure which test I should use now to answer my hypothesis, two-way ANOVA or multiple lineair regression?
My hypothesis are
H1: Purchase intention is higher for advertisements that use human influencers (vs. virtual).
H2: Self-esteem will moderate the effect of the type of influencer on purchase intention.
In which self-esteem and type of influencer (human vs virtual) are the independent variables and purchase intention is the dependent variable.
Thank you.
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For H1, you have one categorical independent variable, so I guess you should go with one-way ANOVA.
For your H2, I'm not sure. Do your virtual influencers also have self-esteem?
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Which one is more effective mode of teaching.......Virtual or Face to Face ?
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From my point of view, e-learning alone ( i.e. distance learning) will not succeed without traditional face-to-face learning. Because e-learning hasn't achieved the desired aims or results, traditional learning is better. At least, the hybrid learning (i.e. blended learning) of both of them is better than the traditional one. This is especially true for the developing countries.
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Unexplored part of virtual design in construction using BIM model can anybody suggest me for my research thesis work
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Hi,
you can check our latest article, where we experimented the integration of a BIM model within a gaming engine, studying a dismissed and inaccessible existing architecture.
Virtualization can help people to know places and buildings even when they are far away, but it can also provide technicians an up-to-date model to work with.
The title of our article is "Management and Dissemination for Dismissed Religious Architecture. An Approach Fusing HBIM and Gamification", I hope it could be useful.
Best wishes.
EE
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can such a topic be researched on a survey or an experiment? thanks.
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A lo que me refiero con esta pregunta, es si piensan que en un futuro no muy lejano se deje lo tangible y pase a existir una economía 100% intangible. Todo se haría de manera digital y se abandonaria por completo lo tangible
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Si le preguntas a cualquier contable o contador, te dirá que no.
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Hi
What are the security topics the need to be researched in NFV ?
Which author should I be following for such research ?
I am also looking at comparing security in middleboxes vs NFV.
thanks
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By shifting the way of implementing hardware middleboxes (e.g., frewalls, WAN optimizers and load balancers) to software-based virtual network function (VNF) instances, network function virtualization (NFV) emerges as a promising paradigm that embraces great flexibility, agility and efficiency.
Recommend follow John C.s. Lui
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GR geometric meaning of curved spacetime lacks explanation what physical media really curves. Can quantum vacuum of virtual particles be that media? Does curvature of spacetime means uneven distribution of that quantum vacuum?
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Stephen Jarvis: okay. I will follow this thread. thanks.
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I need to investigate, in particular, the wall pressure and wall shear stress in a realistic 3D print human airway model with incorporated obstructive plugs. What tools/ setup can I use to get a virtual presentation/chat of the fluid-structure interaction at the region of obstruction?
Thanks.
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Hi Ayodele James Oyejide , frankly this may not be trivial because of complicated damping effects. But I would guess that it's worth considering the use a very sensitive micro-accelerometer to capture the vibration at the obstructed region (especially for turbulent flow). You can then post-process to retrieve the displacement data.
For the measurement of the pressure at the obstructed region, you may consider a measurement system based on flexible piezoresistive sensor that can convert the pressure change into a change in resistance, etc. Along this line, you may find one of the products from Tekscan (no affiliation) useful: https://www.tekscan.com/flexiforce-load-force-sensors-and-systems).
I am hopeful experts with more experience in this will be able to offer better perspectives.
All the best.
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I note that virtual damping resistors and virtual impedances are usually considered to solve the problems that may arise due to the dependence of the conventional droop controller performances on the external line impedance e.g. Rocabert et al (2012)
I would like to know in which microgrid scenarios a damping resistor (i.e a virtual impedance with resistive component only) could be more suitable than a virtual impedance.
If possible, kindly also recommend to me some paper where the sizing of said resistors/impedances is described in detail.
Thanks in advance!
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You must read this article in order to have a better grasp of the choose and size damping resistors/virtual impedances for droop-controlled grid-forming converters in microgrids
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With metaverses, virtual worlds have become extended realities with “infinite possibilities” of creating virtual identities as our extended selves.
But what are these virtual identities, how are they generated, are they indeed limitless in their options and performances or do they rather exist within certain prescribed operational modes?
We organise a virtual roundtable on the topic. Please let me know if you would like to participate.
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Dear Christophe Bruchansky, this a very interesting discussion topic. I have experienced myself the power of the avatar in VR for personal goal-setting and the transformation of the self in the physical world. In the context of the Metaverse, I suggest the remarkable experiences and exciting research findings around identity in 3d multiuser virtual worlds and VR environments. Here are some indicative works for everyone's consideration.
Meadows, M. S. (2007). I, Avatar: The Culture and Consequences of Having a Second Life. Pearson Education.
Mystakidis, S. (2022). Metaverse. Encyclopedia, 2(1), 486–497. https://doi.org/10.3390/encyclopedia2010031
Article Metaverse
Yee, N., Bailenson, J. N., & Ducheneaut, N. (2009). The Proteus Effect: Implications of Transformed Digital Self-Representation on Online and Offline Behavior. Communication Research, 36(2), 285–312. https://doi.org/10.1177/0093650208330254
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I just posted a short Note, mostly addressed to my Linked In platform contacts, followers and interested individuals, that addresses the issue regarding the foreseeable long-term impacts of "Virtual Contact" upon the Cities, their transport infrastructure, and most importantly may be, their Central Business Districts (CBDs).
In it I hint at the set-up of a New Urban Economics Model. The use of nonlinear dynamics and exogenous shocks as fueling a new wave of spatial Schumpeterian gales of destruction is hinted in that short Note.
Also, the worlds of a Cybercity and a Location Theory on Cyberspace are briefly outlined.
I wonder if this community has any thoughts on this subject. Thanks!
The aforementioned Note is found here: (PDF) ON THE LONG-TERM EFFECTS OF "VIRTUAL CONTACT" UPON CITIES, TRANSPORT INFRASTRUCTURE, AND CENTRAL BUSINESS DISTRICTS (CBDs) (researchgate.net)
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Interesting, ... share me the best answer you find.... Please
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I have implemented Switching table based direct torque control of three phase induction motor. But now i want to implement virtual space vector based direct torque control and for that purpose i have prepared two switching tables. now in order to form virtual space vector i need to apply two vectors in one switching time . That is for 0.73 Ts (sampling time) we need to apply output of one switching table and for remaining 0.27 Ts(sampling time) we need to apply output of second switching table. how we can do this in MATLAB/Simulink?
My sampling time = fixed step size = 2e-05.
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Were you able to resolve this?
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In the last few months, numerous college students were exposed to virtual teaching.
1. Why did you like the platform? Identify how it's user friendly?
2. Whether students are liking the platform? Identify the pros and cons?
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kindly seek your advise, currently, we are working on a draft in which we study the advantages of using multipath ( path splitting ) to optimize virtual network requests acceptance ratio.
in which our objectives is to minimize (splitting and join cost , switching cost , SLink Cost).
if you are familiar with methods or articles that help calculate or minimize data stream split and join cost, switching, kindly help.
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Saleem Karmoshi When any file, like an email message, Hypertext Markup Language, Graphics Interchange Format or Uniform Resource Locator request is sent on the internet, it is broken down into small chunks, or bytes. The TCP layer of TCP/IP divides the file into bytes for efficient routing. Typically, a packet holds 1,000 to 1,500 bytes of information. Each packet is separately numbered and includes the internet address of the destination. The individual packets for a given file may take different routes over the internet. Upon arrival at their destination, the packets are reassembled into the original file by the TCP layer at the receiving end. Depending on the type of network, packets can also be referred to by names such as block, cell, frame or segment.
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There are several docking applications and online tools available for docking (I am interested in protein-ligand docking). It would be very helpful if someone can recommend which of the open-source tools can be used for docking and MD simulation.
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You can use MolAICal (https://molaical.github.io/MolDocking.html) for molecular docking that improves based on Autodock vina.
Then, you can use NAMD for MD simulation (https://www.ks.uiuc.edu/Research/namd). The MM/GBSA for assessing binding affinity can also be calculated by NAMD and MolAICal (https://molaical.github.io/).
Best,
Qifeng
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Hello! I am conducting a research study to understand the experiences of therapists, mental health counselors and practitioners in the field of mental health in providing services virtually. For this, I need responses and insights from professionals practicing in India to fill out a very brief questionnaire.
If you are/know such professionals, please reach out! It'd be a huge help.
(suggestions on how I can reach professionals are more than welcome, this is my first independent research and I would appreciate any type of guidance!)
thank you!
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You are involved in very interesting program the need of the present age, which has attracted my attention .Research participant in such areas may act under the academic level but the areas cover by you calls for Meditation , Spiritual vibration , power of prayer , for creating environment of the vibration , distant healing & such other performance of our mind both from the within & outside .
Knowledge & experience in said line may certainly serve the purpose of your academic action for which I wish you the best of luck .With my prayer for your successful program ,May God bless you
This is my personal opinion
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Recently, I presented a paper online. I found it much difficult than the physical events I joined earlier.
What are your thoughts about it?
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Both have positive & other less positive features that depend on the nature of the research that will be delivered & the nature of the researcher who will deliver the research. Thank you a lot for this interesting question.
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Hi.
I'm new to research and still unable to fully understand how to determine population size.
I'm doing research on patient satisfaction at virtual specialist clinics (using a Likert scale questionnaire).
How should I consider the population size?
Is it;
1. Total patients attending the virtual specialist clinic?
my concern is, out of 400 who attend the virtual clinic, only 90 meet the inclusion criteria.
how to determine the correct sample size?
If anyone could help me with a better understanding of how to get the correct sample size.
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Survey as a research strategy intends to generalize the findings. The size of the population to which you intend to generalize is the population size.
Sample size could be calculated mathematically. You will find a sample size calculator online. You will need to supply the population size and possibly confidence interval.
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During the lent of 2020 the COVID-19 pandemic hit the UK and a national lockdown was announced. This turned churches into overnight studios for broadcasting their live services and Zoom meetings and turning pastors into TV Host and producers.
According to Cressman (2001:46), the pandemic has impacted how societies function and relate to each other, and this is the reason why I am conducting this research on 3 Pentecostal churches in Slough, United Kingdom to discover how the pandemic affected the church, the community and its doctrinal theology. It is important for this research to be conducted as it highlights not just the theological aspect of an individual or community but opens up to discovering how individuals react to be isolated behaviour and how the church overcomes different situations it is facing through its community.
The gathering of believers according to Adebola (2020:224) is first read in the Acts of the Apostle (2:1-5) where they gathered in the temple to pray and before that to discuss the replacement of Judas Iscariot.
Scholars agree that the above event being described as the first Christian gathering. I agree with Adebola the community from the beginning has been centred around the church and not just from a theological factor but also a social factor. This exciting research will explore the activities taken by Pentecostal churches in Slough during the COVID-19 pandemic, and the differences they had to adjust to as an organisation to achieve the set goals by adhering to new religious rules.
This research will also show how the church and the community were affected from a theological manner, I will research the change in the delivery of service and methodology, the discouragement to not taking the vaccine and its effects on the church and its members. This research will look at the virtual church and the importance it has played in the existence of individual churches. Through interviews with members, we will investigate how members adapted to prayer meetings, bible study groups which were previously done collectively.
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Wow this is really helpful Thank you for sharing this. Bless you
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as i read in the literature, the the probability of VNR ( virtual network requests) acceptance ratio is: --he number of blocking (dropped) VNR by the total number of VNR---
kindly help me confirm if true.
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Cloud computing provides resources by using virtualization technology and a pay-as-you-go cost model. Network Functions Virtualization (NFV) is a concept, which promises to grant network operators the required flexibility to quickly develop and provision new network functions and services, which can be hosted in the cloud. However, cloud computing is subject to failures which emphasizes the need to address user’s availability requirements. Availability refers to the cloud uptime and the cloud capability to operate continuously. Providing highly available services in cloud computing is essential for maintaining customer confidence and satisfaction and preventing revenue losses. Different techniques can be implemented to increase the system’s availability and assure business continuity. This chapter covers cloud computing as business continuity solution and cloud service availability. This chapter also covers the causes of service unavailability and the impact due to service unavailability. Further, this chapter covers various ways to achieve the required cloud service availability.
Researchers are trying to find new ways of finding and pointing out Cybersecurity vulnerabilities by using innovative metrics. New theoretical proposals need to be tested in a real environment, using Cybersecurity tools applications that can validate the applicability of those in real life. This paper presents an experimental flexible environment, which can be used for the validation of several theoretical claims based on an “easy to use” architecture implemented in a cloud environment. The framework provides a much shorter time setup in the real world as well as a much better understanding based on log analysis provided by MS Azure. As a proof of concept, we have tested three different claims and provided proves of results such as screenshots and log samples.
C. Bucur and E. Babulak, "Security validation testing environment in the cloud," 2019 IEEE International Conference on Big Data (Big Data), 2019, pp. 4240-4247, doi: 10.1109/BigData47090.2019.9006202.
Wagdy Anis Aziz, Eduard Babulak and David Al-Dabass, "Network Function Virtualization over Cloud-Cloud Computing as Business Continuity Solution", Published: July 14th 2021 DOI: 10.5772/intechopen.97369
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- User authentication and authorization failures may result in data breach or incorrect representation of the user. This applies to all cloud models and all definitions of users.
- Privacy and safety of data in the cloud (against the cloud owner, and also others) is a major issue to worry about for users.
-Other issues may occur, like non-availability of the cloud for some time, and other issues associated with remote hosting, but these are typically ok these days.
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Hello,
in my research to a new logic I also encountered the following more physical problem:
According to my theory it could be that the interaction of two particles was different (or not possible) if both have previously had different interactions (e.g. since the Big Bang or on a pool table).
In practice, particles or billiard balls can always interact with each other, no matter how many and different interactions preceded. Ockham's razor therefore says that the interaction stories are not relevant.
I counter this with the "pocket knife of my imagination":
We can also assume that all interactions in the universe are always counted, and this counter is available universally and simultaneously (= not locally) in the universe. It can only increase, so it has a direction. And only particles with the same interaction counter reading can interact
and increase the counter by 1. We see that this counter is very similar to classic Newtonian time. Therefore, I consider it a new dimension of time / impact /interaction.
Of course the whole thing would be superfluous if it only explained interactions, for which you don't need it at all.
But you can (along with a local time reversal) explain many of the curiosities of quantum theory.
First of all, I have to clarify that when interacting gravity (or space-time curvature) is excluded. One reason is that it is less easy to define. A second is that the physicists have not yet come to equal treatment of the four basic forces and my new extra time could make space-time difficulties. Since I am not a physicist, we can also say that I separated it “intuitively”.
My model for a quantum interaction looks like this: At a starting point (e.g. in front of a double slit) a particle has according to the uncertainty relation, several possibilities to reach target points where interactions could take place.
These possibilities explore swarms of "virtual possibility particles". As long as the interaction at the target has not yet taken place, these are not real and can return to the start (with information from the target) inversely in time. At the start, the virtual target information cannot be read. Therefore, one of the options (including the virtual information) is selected blindly
(quantum coincidence), this becomes real and triggers an interaction at the goal. This also increases the universal interaction counter by 1. The particle from the start can no longer interact due to the lower counter.
(You can also interpret it as "it moved from start to target", however, the possibility paths are not particle paths and can e.g. go through two slits (interference)).
Entanglement can also be explained with the interaction counter
and time inverse moving possibility particles. Here the virtual information about the polarization filter angle is brought back to the start, after selecting these angles go through and then become real with the interaction at the target (or the two targets) and the counter increases.
The time reversal for virtual possibility particles was in these considerations maybe more important than the interaction counter, that makes an interaction real and fixes the result (quantum measurement).
But there is also an application in which the influence of the impact counter could be shown more directly: We assume that our computers (with the exception of errors) work independently of time. So if we determine the prime factorization of a large number, the same result should be delivered yesterday, today and tomorrow.
Now I was able to show that logic and mathematics may apply (layer logic), where the prime factorization could be layer-dependent, and where in reality the layer could correspond to the levels of the interaction counters.
So it would be conceivable that if the computer tried again to determine the prime factors
of a large number, would suddenly produce different results. Unfortunately, in this experiment we may have to wait until the end of the universe ...
I do not want to hide one disadvantage of the interaction counter: Although I allow time travel "on a small scale", "on a large scale" I make it impossible: If my grandfather lived in front of me at interaction counter k, that's how i was born at k + r. So I can only interact with objects with interaction counter k + r or larger, but not with my grandfather in the past at k.
So the grandfather murder was murdered.
The lottery numbers are similar: If the drawing of the lottery numbers at counter k + r,
this cannot provide information about counter k be brought before the drawing because there is nothing to interact with.
So maybe you can go back in time, but that's only useful for quantums, because in the second time dimension interaction counter everything is ordered (macroscopically) monotonously.
Anyone interested in details of the layer logic from which all of this started here the link: https://www.researchgate.net/post/Is_this_a_new_valid_logic_And_what_does_layer_logic_mean
Yours Trestone
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what exactly do you mean by "this", that the Standard? theory explains?
Yours Trestone
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What effect has Corona had on face-to-face, part-time and virtual training?
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Does tunneling mean that in a certain area a real photon turns into a virtual one, and then turns into a real one again? Could this lead to observable (vacuum) effects? However, a photon (unlike gluon) has no charge .....
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Generally, tunnelling is the quantum state for single-particle interaction with matter. For photons to interact with matter,it produces a temporary field and transfers an electron to a lower state level. The transfer releases a photon reabsorbs the energy from matter.............................................................
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The publication of a research: OPTICAL GEOMETRY IN THE FORBIDDEN CITY, show after carefully analysis of the an metal alloy horse with concave eyes .The investigation show the horse was designed and realized by the Jesuit Painter -Architect:
Giuseppe Castiglione (1688-1766), during his 50th years of service under Nr.3 Qing Emperor , from 1715-1766. As explained in the report the intention of Castiglione was to convert the Emperor Qianlong (1711-1799) to Christianity, but due yo rigid protocol in place, he can't due directly, but realizing work of art with technology , in this case (physic concept of light). As he can't be discovered for eventually any questions arising from Emperor about this phenomenon, in particular the left eye, where a triangle is visible ( sign of trinity) , as well as in the link (inserted at the end of pag.1 of the here attached research , to the video of 28th seconds ( eyes became real in the last 12 seconds).
As apparently brain neuronal mechanism of the retina is involved, with calculation and knowledge Castiglione used to realized the virtual image? probably the first in the history.
Considering also that he keep in consideration daily light, as an alibi, as daylight don't show any affects.
Thanks
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People lose sight acuity with aging.
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Need software to do microscopic testing of a new biomaterial in virtual mode to compare with the physical testing result
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Dear Anirudh Kohli,
Here below is a link to students' simulation source:
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Photon does not violates conservation of energy at any length and time scale, whereas virtual particle does violates the conservation of energy at short time scale using uncertainty principle.. Existence of photon arises due to the time varying of electric and magnetic field. Once the time varying electric and magnetic field ceases, photon can not exist afterward.
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No matter photon is matter or not matter, matter doesn't have to have mass, there is no such connection. To be exact, photons are matter and antimatter at the same time, or alternatively, can be said to stand between matter and antimatter. There is no annihilation between photons and antiphotons, this already tells the truth that photons are not massive; if they were massive, they should have corresponding antimatter photons that they could have annihilated with. The annihilations between photons are never experimentally observed or supported. Photons are studied from very low frequency from Hz to very high frequency of 10^20 Hz over many orders of magnitude, there is nothing to support that photons have mass. Frequency measurements have reached accuracy down to 1 part in 10^15 at lab, nothing has been found to support massive photons.
Please note: photons can be generated by both matter atoms and antimatter atoms in laboratory, their frequencies are equivalent with accuracy at level of 1 part in 10^12. Please research to find out my claim.
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Dear colleagues,
Can you recommend (according of your practice) an online (PDF version) remote sensing guide/manual for beginners with virtually no experience in this area.
Sincerely,
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Anji Reddy or B Bhatta
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The use of GUI (miniedit) for mininet
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Himadri Nath Saha .... good reference. Bodo Ngono Rosaly Zoller you can also google your solution
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Both Virtual synchronous generator (VSG) control and grid-forming converter are used to mimic the behaviour of synchronous machines. How to understand the relations between Grid-forming and VSG? Thank you for your comments!
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The core of the VSG control is to mimic the inertia and damping characteristics of synchronous generator hereby improving the inverter response towards disturbance and contributing to the microgrid stability. Grid-forming inverters help in forming the microgrid frequency and voltage and could also follow PQ commands when working in grid-connected mode. VSG falls under the category of grid-forming inverters.
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I got inspired by the reading of a short paper written by Jonathan Tennant, entitled “Web of Science and Scopus are not global databases of knowledge” (2020). There I heard about some databases for the first time, like the Garuda portal or African Journals Online. It got me wondering: what else is out there and I do not know because my point of view is limited to the languages I speak and the place I live in?
So, my idea here is that we can share academic databases that we are familiar with and perhaps are not very well known in other countries or continents. Where do you do your research?
Here is a list of interesting links that I have collected, without strict criteria, reflecting my point of view as a Brazilian researcher in the field of Psychology.
Portal de Periódicos CAPES
Biblioteca Digital Brasileira de Teses e Dissertações (BDTD)
Portal brasileiro de publicações científicas em acesso aberto
Emerging Research Information (Preprints)
Sumários de revistas brasileiras
Scientific Electronic Library Online (SciELO) internacional
Scientific Electronic Library Online (SciELO) Brasil
SciELO Livros
SciELO Preprints
Periódicos Eletrônicos de Psicologia (PePSIC)
Biblioteca Virtual de Psicologia
Base de datos de Psicología (PSICODOC)
Biblioteca Virtual em Saúde (BVS)
Literatura Latino-americana e do Caribe em Ciências da Saúde (LILACS)
The Directory of Open Access Journals (DOAJ)
Red de Revistas Científicas de América Latina y el Caribe, España y Portugal (Redalyc)
Consejo Latinoamericano de Ciencias Sociales (CLACSO)
Directory of Open Access Books
OpenEdition
Open Book Publishers
JURN
Bielefeld Academic Search Engine (BASE)
Science Open
Lens
Dimensions
Semantic Scholar
Repositórios científicos de acesso aberto de Portugal
J-Stage
African Journals Online
Directory for Arabian Journals
Iraqi Scientific Journals
Garuda
CAIRN
Érudit
Persée
HAL Archives ouvertes
Perspectivia
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Thank you for your answer Nawel Zaatout. However, the most important databases actually vary depending on geographical location, language and field of research. Salatino & Ruiz (2021) have conducted an empirical research on 10.104 scientific journals from Latin America and showed that, for this group of journals, the most important databases are Latindex, DOAJ, Redalyc and Scielo.
Salatino, M., & Ruiz, O. L. (2021). El fetichismo de la indexación. Una crítica latinoamericana a los regímenes de evaluación de la ciencia mundial. Revista Iberoamericana de Ciencia, Tecnología y Sociedad, 16(46), 73–100. http://ojs.revistacts.net/index.php/CTS/article/view/212
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I have a virtual machine. My host Pc specs are not that good thats why i went for virtual servers. so basically my host pc has 8gb of ram with nvidia quadro k2200 4Gb DDR5 GPU ,processor intel core i7. but it can not handle much elements since the meshed elements are in the range of 10Million to 36Million elements from coarse to fine respectively. The server is 32gb intel xeon processor. would it get the job done? or should i buy and make a host xeon workstation of the same specs? also by the elements which are the recommendations if i am to buy a workstation?
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Hi, 32 gb is not enough for 36 million elements. It might work but it will take time. A workstation is not a solution for me. You need a supercomputer.
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Dear Scientists,
I would like to hear about your experience with the Magnus corpus conference organizer that offered various conferences on different subjects.
I'm invited to present my work at their upcoming cancer-oncology conference. But they reach me over WhatsApp and told ming that the authority forced them to convert it to a fully virtual event. Frankly, this makes me suspicious.
So I would like to know if this conference is genuine or preditor conference.
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I can't talk from personal experience, but there was a similar question asked in the past here on ResearchGate:
Some experiences are outlined in the answers to this question.
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From my understanding, the traditional way is to provide research participants with many old magazines. I would like to discuss with you whether asking participants to pick an image (or images) is alright with this technique.
1. Will it still be considered a "Collage" (one of the projective techniques)?
2. Do you think it will change the findings?
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Many images will have copyright issues. There are websites that provide free images. You can recommend those.
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Does anyone know if there is a Windows alternative for ModelTest-NG? I have few sequences for phylogenetic analysis, but i own a Windows system, technically, it hasn't been easy trying to set up Linux, virtual and otherwise. If someone could suggest an alternative, it would be much appreciated.
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Hi.,
Kindly Refer this link:
Best Wishes..
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I have been working on the virtual RVE generation using Dream.3D for crystal plasticity-based numerical simulation on DAMASK. I have successfully generated multi phase RVEs with varying grain size and distribution of precipitate phase on grain boundaries.
Now I want see the banding effect of cementite particles in ferrite matrix (as in spheroidized pearlitic steels). For that I want to make Virtual RVEs with varying band width embedded in the ferrite matrix at specific gap.
Any software technique to make these RVEs e.g., Dream.3D, Neper or any other help or clue will be most appreciated.
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Dear Muhammad,
I assume you are using the grid/spectral solver. If Neper or DREAM.3D do not offer the required functionality, you can use https://damask3.mpie.de/documentation/processing_tools/pre-processing.html#damask.Grid.add_primitive to add a second phase particle. If you loop over the position of the particles (using e.g. numpy.random) you should be able to create a banded structure of precipitates.
best regards
MArtin
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How can leaders ( Not Managers but every Manager would have leadership qualities) could actively engage and listen in today's virtual setting due to the current situation. Do any of you know of relevant research papers on the same since research work on virtual leaders is very less along with the attributes of actively listening and engaging. It would be great to receive your insights and some idea on a research gap.
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I would recommend you may read the following article through Google Scholar:
- MEREDITH ELAINE BABCOCK-ROBERSON and ORIEL J. STRICKLAND (2010) The Relationship Between Charismatic Leadership, Work Engagement, and Organizational Citizenship Behaviors, The Journal of Psychology, 144(3), 313–326
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As a limitation of COVID-19 pandemic, one can not go out for fieldwork but can do a virtual ethnographic study in this lockdown. What are the methodology to conduct virtual ethnographic research related to architectural spaces?
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Hi dear Drasti.
Good question.
Ethnography is based on the premise that the Internet, in addition to being a research tool, can itself be a place for interviews. In such cases, the Internet can be studied as an environment or culture in which human beings create certain forms of communication, or sometimes specific identities. In both cases, ethnographic methods can be introduced to Internet research and the methods of communication and presentation on the Internet can be studied. To gain an understanding of participants' perceptions of themselves and the meaning they give to their online partnerships, they need to spend time with them watching what they do online and listening to what they have to say about what they do online.
Virtual ethnography is a technical environment instead of a natural one. Technology should not be taken for granted because its impact and use is strongly influenced by its representations and the beliefs that both users and non-users have about it.
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Hi colleagues,
I am currently working on a research project on the use of the camera in virtual classrooms for my dissertation. I have browsed the web, but I haven't found many articles.
The purpose of the research is to understand if the use of the camera impacts engagement with the learning content. For instance, trainees either tend to put the camera on or keep it off at all costs. With my research, I want to explore the reasons behind this preference and how this choice ultimately influences learning and performance.
Could you share your thoughts or relevant research?
Thanks,
Dalila
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Hi Saef, I didn't consider this point (the class being recorded), thanks for bringing this to my attention. I like to keep the camera on because it makes more focused. I also think that if we are in a classroom, we don't have any other choice but show ourselves.
Hi Ravikumar, that is exactly what I am trying to understand. I love keep the camera on because I am happy with my surroundings, and I don't really notice the backgrounds of other people with the camera on. But some people do, as you mention.
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Do you have experience virtual try on system with GANS?
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Hello! I've published on five randomized controlled trials revealing that a virtual reality job interview training tool increases the odds of employment in those using the virtual tool compared to a community control group (~OR=2.0 with two-tailed tests). The trials were in various groups with serious mental illness. I'm now conducting what was supposed to be a fully-powered RCT where the COVID-19 prematurely ended our recruitment where we enrolled 68% of our anticipated sample.
Given we have 5 RCTs finding the same outcome, I proposed an a priori directional hypothesis that the virtual interview tool would again increase employment in the latest study. That said, is there a way to compute a directional/one-sided confidence interval for the Odds Ratio?
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Hello Matthew,
A one-sided CI for an odds ratio would simply be the appropriate tail estimate from a 100(1 - 2*risk level) CI. For example, a 95% upper limit only CI for a data set would be found be asking for a 90% CI and using only the upper limit.
As Professor Booth notes, the Rosner text is very helpful for this and a host of other questions.
Good luck with your work.
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Design studio is essential in visual arts and engineering. With COVID 19, we need to find new methods/media to teach/practice design.
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Yes i think that
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In terms of meeting length my impression is that if one travels several hours or more to a conference site, then 3 or 4 days is good since the length justifies the travel time. For zoom conferences, it seems harder to me to stay focused after 3 hours on zoom per day. So multiple days of 3-4 hours virtual talks seem useful. What are your experiences and preferences?
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Dear Prof. Tainer!
This is an excellent question. I think it depends on the people involved and the topic discussed. Still 2-3 days online conferences are nice with 30-40 minute sessions and brakes (5 - 10 minutes) between them. May I argue that a conference each day should leave some free time for t he rest of the day: 3-5 contact hours per day is okay. I have attended recently an Elsevier online conference and they implemented the event in this manner:
"International Diamond Open Access Journals Conference" 13-15 April 2021:
A found also an article related to this issue, a case-study:
Maria Haji‐Georg et al. (2021). Academic conferencing in 2020: A virtual conference model, Human Behavior and Emerging Technologies, Volume 3, Issue 1, January 2021, Open access:
Yours sincerely, Bulcsu Szekely
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Hi, I'm working on the creation of a virtual patient using data about consultations stored from a computer system. During my researches, I just came across paper on well defined cases created by professionals during development phase.
I therefore seek for advice about feasibility of such a project and papers on non-scenario based virtual patient (the practitioner need to conduct consultation without predefined scenario).
Can you help me?
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Dear Junior N'nane,
a Human Digital Twin (HDT) for Healthcare can be viewed as a "Virtual Patient". So I would recommend looking for good sources of information describing the use of HDTs.
My short list of literature may be able to help you a little.
Best regards and much success
Anatol Badach
Jorge Corral-Acero, Francesca Margara, Maciej Marciniak, et al.: The 'Digital Twin' to enable the vision of precision cardiology; European Heart Journal, Vol. 41, Issue 48, Dec. 2020, https://doi.org/10.1093/eurheartj/ehaa159 https://academic.oup.com/eurheartj/article/41/48/4556/5775673
Tolga Erol, Arif Furkan Mendi, Dilara Doğan: The Digital Twin Revolution in Healthcare; 4th International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT), Oct. 2020; DOI: 10.1109/ISMSIT50672.2020.9255249 https://www.researchgate.net/publication/347023987
Ying Liu, Lin Zhang, Yuan Yang, et al.: A Novel Cloud-based Framework for the Elderly Healthcare Services Using Digital Twin; IEEE Access, Vol. 7, Apr. 2019; DOI: 10.1109/ACCESS.2019.2909828 https://www.researchgate.net/publication/332586623
Kristine Arges, Themistocles Assimes, Vikram Bajaj, et al:: The Project Baseline Health Study: a step towards a broader mission to map human health; npj Digital Medicine, Vol. 3, Article number: 84, 2020 https://www.nature.com/articles/s41746-020-0290-y
Improving healthcare using medical digital twin technology https://www.challenge.org/insights/digital-twin-in-healthcare/
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During COVID 19 period prolonged lockdown breaks the continuity of conventional proscenium theatre around the world. Helen Mirren also reflects this issue in her message given in the World Theatre Day this year. We find different alternative forms are in experimentation. Now, What would be the new form of theatre after COVID. Would there proscenium be resumed and continue as before or any other newer form(s) would be expected to come into being? What is the scenario in the world. In India, specifically Bengal there is a new form emerging may be termed as virtual theatre.
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Dear Ravi Kumar, thanks for the comment. Yes, this is a good idea. But still the presence of audience is matter of concern.
Stay safe and fine.
Nandan
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Hello, my name is Wendy Acevedo, I am a student at the Universidad Cooperativa de Colombia. I am interested in initiating research about mental health, specially, anxiety in virtual education. For this I am collecting data about mental health in students during the pandemic.
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Virtual education without any physical contact is most probably directed against the biological evolution of human behavior, i.e. will cause hitherto not known illnesses and diseases. I do not only mean mental pathologies, but also physical ones. All kinds of touch are a vital feature of this physical world, with respect to continued human health. It is a fact that some learning experiences cannot be programmed and need physical touch.
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What is the best superimposition software to the comparison of two similar virtual 3D objects?
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Now, with the modality virtual, the focus of students is losing, help me in my proyect of investigation to found a solution on this problem.
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I want to answer this question as a student
This is impossible
Really impossible
I have two younger sisters who make me lose my focus with their noise.
I think it is impossible to have the focus that you have in your school and university classroom at home.
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I am looking for texts on digital, virtual ethnography, and/or netnography. I accept suggestions for textbooks and materials that can be enlightening.
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Hi Alcione,
You should find the following books useful for getting started on your research:
Pink, S. et al. (2016) Digital Ethnography: Principles and Practice. Sage.
Hewson, C. et al. (2016) Internet Research Methods 2nd Edition. Sage.
Kozinets, R.V. (2015) Netnography Redefined 2nd Edition. Sage.
Hinton, S. & Hjorth, L. (2013) Understanding Social Media. Sage.
Hooley, T. et al. (2013) What is Online Research? Bloomsbury.
Liam.
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Hi everyone,
I am working with Abaqus and I need to create a cell partition with a closed edge contour like the "📷Photo_1.png".
Anyone knows any Abaqus option to do that? I don´t care if I have to use an Abaqus script to do the partition.
The edges from the closed contour are pairwise parallel. One pair is purely straight, and the other edge pair is curved.
I can´t do a simple "Partititon Cell: Extrude/Sweep Edges" tool on the curved edge because of the geometry of my part, it is a deformed part, so the faces are not perfectly planar and I get results like the "📷Photo_2.png" if I do a huge zoom.
One possible solution could be to find out how to make a larger edge than the narrow face, in order to extrude the edge and dont get the same error as "📷Photo_2.png".
Neither can I use the "Use n-sided patch" tool, because Abaqus raises the following error: "📷Photo_3.png". Thats beacause I am using curved edges (I guess). To prove that, I tried to sketch a simple circle (and other sketch like "📷Photo_4.png") on the narrow face, and Abaqus raise the same error...
My proposed solution is to sketch the face contour in order to achieve the cell partition, but I dont Know how to do it.
I have shared you the same CAE file Im using if you want to prove something.
Any help will be appreciated.
Thanks.
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Ok, Victor J. Аdlucky. Thank you!
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Using reading with computer generated instruction with reading materials for adults with dementia to work on higher level cognitive function to improve time management and memory.
Does that have that have the level of engagement or could this technology be effective with prompting or AAI animal assisted intervention to motivate the learner and motivate actions towards behaviors to keep engagement in check?
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Thanks for your response. Atlanta, Ga GSU
When the level of language impairment is on the minimal end of the spectrum with this brain disorder, the use of a technology base where the variables such as type size, back light % and other potential distractions could be manipulated more efficiently, the additional ease of data collection would also be value added. Tech approach for earlier stages would be a good intervention thanks for your input.
However, as the degenerative action of a Dementia spectrum disorder advances, including LBD, Parkinson's and becomes further debilitating, I wondered about the effectiveness of using more static visual narratives for continuing this cognitive engagement. The research that I have reviewed recently from Dr. Emily Coderre's 2018 Visual Ease Assumption "A Review of Visual Narrative Processing in Clinical Populations" indicates that the visual narratives should not be assumed to be easier for clinical populations that struggle with language disorders. I am working to develop a pilot to build on the reading levels and continue looking for interventions to use for midlevel clinical Dementia patients in order to build on reading ability relative to the skills they have and link to engagement and cognitive
order of linguistic function. This is where I believe AAI would be of additional benefit as well. Are you aware of any research or programs that are using Reading programs that apply reading on the continuum that tracks with the abilities of this clinical population? Degenerative disease interventions are often thought of as management but if this intervention can be applied to improve and extend linguistic application and engagement providing a way to extend patients into their real time environment longer it is worth looking into- By 2030, the average life expectancy in US is 90 which means the probability of experiencing Dementia is also of that higher probability as well. I won't be here, but my kids will.
Thanks again for your time.
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Virtual learning environment is the use of online teaching environment as a medium of instruction.
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My pleasure, Prof. Liqaa Habeb Al-Obaydi,
It looks like virtual learning is becoming more and more popular in higher education.
You can check also for example the advances of the OpenLearn platform at Open University in the UK.
Best Regards.
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My question relates to the context of a developing country such as Nepal.
1. People, in this time of COVID-19 lock- down, are showcasing the application of virtual classes in schools and colleges. But the fact is that there is no access of a reliable networking facility to more than 40-50 % students across the country. Is not this again a reproduction of making the already disadvantaged groups of students further disadvantaged?
2. Can a virtual space work as effectively as a live classroom in terms of the level of engagement and the quality of learning?
Thank you.
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Virtual learning in school is useful. It enhances various potentialities of learners. But, technophobia is more dangerous! It spoiled human quality. We may use it as per need.
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I use the Virtual Element Method and I wanna know how hanging node works at that method?
because in the initial mesh, the energy norm error percentage is 20% like the first picture, when I add a hanging node, the energy norm error percentage increased to 180% like the second picture.
my reference article,
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Hi everybody,
currently, I am working on the grid-connected inverter. I want to make my grid-connected PV system a PLL-less system. I have studied some reachers are implementing a virtual synchronous machine to make the system PLL-less. I have tried to implement in MATLAB SIMULINK but the grid current is distorted. Can anybody tell why this happens?
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Dear Manash,
GF inverters do not control directly the grid current dynamics. The use of the pll in the Vsm aims to damp the active power and make their modes dominants against the grid current ones. By removing the pll, the parameter Dp is set to allow a load sharing and its effect as a damper become very small, and thereby, the dynamics of the grid current may become dominant resulting to the behavior you noticed.
For more details, and if you are intersted, you can take look on the following documents in my RG:
-D.3.2 Local control .....pdf
-PLL-free grid forming ......pdf
Best
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Algunos afirman que la educación virtual llegó para quedarse, y otros no confían en que se haya llegado a un punto de madurez suficiente para que pueda desplazar a la educación convencional. Se abre el debate
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I believe that virtual education has brought us many benefits and many drawbacks, from my opinion I believe that it should stay but not in the way it is now, but in an alternative way for those people who have difficulty when going to daily to the university for various reasons, such as a person with a physical disability.
Currently, both students and teachers are finding it a bit difficult to adapt to this new modality, since it arose suddenly, but if some problems with which online teaching are clarified, it would be a great resource that should be restored.
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please if you work online because of COVID-19 help me with this questionnaire it would be appreciated
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thank you :") please share it with your friends
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In actual and virtual class, even if there is rubric for recitation, students may still fail to receive fair grades or scores. Others are active in recitation and others are not or others may fail to recite at all during the entire semester. Active ones may have produced good scores, others may receive a low grade or worst a failing score for some. It happens because instructors/professors do not practice recitation score banking system and relying heavily on rubric-based recitation which apply presumptively every time a student is called for recitation or maybe no rubric is used at all.
There the problem lies.
Assume that one student recited five times already chances are he would receive better scores. Others may answer once or twice or not at all during the semester thereby giving them low scores with or without rubric depending heavily on subjective judgment of the professor or instructor.
Now is there a recitation score bank system that will give students fair opportunity to recite and to be assessed fairly?
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سؤال جيد تخصصي
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As majority of schools transition to online or blended learning, which platform will you recommend? I teach a technology course in a Masters Degree program for medical doctors and prior to COVID-19, we were basically doing face to face classes. Typical class is around 15 - 20 doctors with age range between 35-70 years old. So basically if we decide to commence classes in August, I don't think we will be able to conduct it the way we used to. Budget will be very constrained (I don't think the school will invest heavily on this). May I know what will you recommend? Google classroom, Canvas or Moodle? Thanks in advance, I think I will be asked on my recommendations on our virtual meeting this Saturday.
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Hello,
I am working on a paper and looking for an existing Validated Health Care Survey/Instrument. I have been performing virtual ergonomic evaluations since the start of COVID and want to capture the perceptions, attitudes and outcomes of the assessments. I think it is important to learn from this change in service due to COVID and understand the strengths and weaknesses of the assessments.
Thank you,
Dr. Kathryn Meeks PT DPT CAE
Optimizing Motion
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Thank you very much!!
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I am trying for a TS calculation in gaussian-16W. Several times I tried but results same>. The end of the file it is the message. Can anyone help me to solve the problem? I am using m06-2x/6-31+G(d,p) functional and basis set.
Add virtual bond connecting atoms O20 and P1 Dist= 3.28D+00.
Add virtual bond connecting atoms O20 and N5 Dist= 3.36D+00.
RWCPar cannot convert versions.
Error termination via Lnk1e in C:\G16W\l101.exe
Advance thanks to all.
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Dear Keshab,
I encountered that error (which I bet is a read-write error) recently when I scripted badly a batch of gjfs, ending up to assign the same chk name to multiple entries.
This has possibly caused (at least to me) quite a few jobs to be killed by this and by similar errors.
Hope it helps.
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Cosmic culture and virtual identities that cross geographical boundaries .. Is it realistic culture or imagination?
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The cosmic culture are still virtual but advancement of technology would make it realistic when someone would feel or sense physical thriller or sensation of cultural activities .
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I need the opinions of academics in universities
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Dear Reyadh D. Ali yes I believe so.. At least I can speak on the behalf of social sciences, since I believe we supposed not to test students knowledge.. but the capacity to apply the knowledge. I.e. Each student might have a different answer depending how he/she the knowledge could be applied.
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I am using COMSOL for patch antenna design and i have a problem in the 3D Far Field, Virtual Array > Far Field 1 expression (emw.gaindBEfar+20*log10(emw.af3(8,8,1,0.48,0.48,0,0,0,0))+10*log10(1/64)) and i got :
Unknown function or operator.
- Name: emw.af3
- Plot: ff1 (Far field)
how can i fix it.
Since it is my studying project and on the university's computer I can not share it
pls help me about that
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I don't know, but the program can't identify the function you have named. Are you sure that you have spelt it correctly? Have you used the right shape of brackets? Have you given it the right number of parameters? It is often these sorts of errors that mean a program can't identify a function.