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Prototyping - Science topic

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I want to design a prototype Ablation catheter for some research work. Does, anyone has any good book, link or any other good source for ablation catheter design. It should cover all the aspects, like, mechanical, electronics and cabling.
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Kriegh Moulton I ignored your useless comments several time, but let me say, first you are not the CEO, and the second thing is, from your comments I can suggest you that it is better to spend time with your grandchild or any old age center.
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Reconfigurable intelligent surfaces (RISs) have promising coverage and data rate gains for wireless communication systems in 5G and beyond. Prior work has focused on signal processing part more and prototype design part less. How to design IRS efficiently to improve QoS of 6G communication? Which tool is best suited for design and simulation of surface, CST Microwave or Ansys HFSS or both of them? How to simulate the unit cell and how to simulate array?
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Designing efficient reconfigurable intelligent surfaces (RISs) for improving Quality of Service (QoS) in 6G communication requires consideration of several factors. One of the key factors is the choice of the unit cell, which should be carefully selected based on the desired frequency range, polarization, and bandwidth. The geometry of the unit cell, including its size, shape, and material properties, can also affect the performance of the RIS.
In addition to the unit cell design, the configuration of the RIS array can also impact the QoS of the wireless communication system. The size and spacing of the elements in the array can affect the radiation pattern and polarization of the RIS, which in turn can impact the performance of the system.
To design and simulate RIS efficiently, electromagnetic simulation software such as CST Microwave or Ansys HFSS can be used. Both tools offer the capability to simulate the unit cell and array of the RIS, as well as the ability to analyze the electromagnetic behavior of the RIS under different operating conditions.
To simulate the unit cell, the geometry and material properties of the cell can be defined in the simulation software, and the electromagnetic response of the unit cell can be analyzed under different operating frequencies and polarization. The simulation can also be used to optimize the geometry of the unit cell to achieve the desired performance.
To simulate the RIS array, the geometry and spacing of the elements can be defined, and the simulation can be used to analyze the radiation pattern and polarization of the array. The simulation can also be used to optimize the configuration of the RIS array to achieve the desired performance.
Overall, the choice of simulation tool will depend on the specific requirements of the RIS design and simulation. Both CST Microwave and Ansys HFSS offer powerful capabilities for simulating electromagnetic behavior, and the choice between the two tools may depend on factors such as cost, ease of use, and specific features required for the simulation.
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For district, city or urban scale building energy modeling, we normally only have the building footprint (polygon boundary), their average height, and the number of stories. which method do you use to create the 3D geometry and zoning for different building types based on those data?  Or which method do you think is the best for urban building energy modeling? Or do you use any other methods?
1. Use prototype building (typically rectangular) with same floor area, orientation and aspect ratio?
 2. Create one zone per floor?
3. Separate the internal zones with the perimeter zones (e.g., 15 ft/ 5 m width for the perimeter zones)? 
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I think this is pertinent, since performance simulation beyond the building scale is still contentious. So, thank you for the question. Considering its implications is quite helpful@.
At UNSW we have been working on library based Precinct Energy Modelling (PIM) to improve energy analysis - both on the data scheme and procedural implications. LBNL is at the forefront of this so, I am sure you are aware of the tool SBT-1 (Space Boundary Tool), formerly Geometry Simplification Tool (GST). It works in conjunction with a Simergy tool element that is being simultaneously adjusted through the work of @Richard See, whom I had the fortune to correspond with to test some features. Just like ASHRAE and other data libraries, it embraces the space type data concept with important additions. Both the concept and the features of this tool gave good insights. (Your questions are set to bold in what follows.)
"Use any other methods?"
"1. Use prototype building (typically rectangular) with same floor area, orientation and aspect ratio?"
The key to this is that you don't conceive a building as an extrusion of just one polygon per building. That way you could be way off with your performance simulation. Consider that in an urban setting many buildings have a podium volume and then significant setbacks for the upper story extrusions. Typically, the taller the building the larger the setback. Beyond that, floor area, aspect ratio and orientation are also important, of course.
"2. Create one zone per floor?"
You might want to be able to assign multiple programs to the same spaces or zones. This means that multiple zones per floor is a necessity not just spatially but also temporally. Consider a client who want the option for a large part of the podium level, or several stories of the tower portion, to be used not for a commercial but a residential building program. The usage schedules for those zones will be vastly different.
"3. Separate the internal zones with the perimeter zones (e.g., 15 ft/ 5 m width for the perimeter zones)?"
I like the idea of assigning approximately twice the storey height in horizontal distance from the perimeter for a separate zone. This comes from the daylighting need and the average angle sunlight hits the windows. But consider doubling this for the perimeter zones that are double-storey high. Also, change either figures for significantly different climate zones where the angle of average sunlight is steeper or shallower. This is pertinent both within the US, e.g. as within the ASHRAE types, but many provinces within China also have significantly different climate zones.
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It must have high thermal conductivity even if it is not electrically conductive. However, it should had high stiffness value so that it will not warping
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May I recommend you to use ULTEM or PEI filament (Polyetherimide); It is similar to PEEK but better in thermal resistance.
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Hi there!
I'm starting to model an urban simulation and I'm having a bit of a dilemma regarding what language to use. Have some experience in Netlogo and I'm starting to make a shift towards Repast, GAMA or MESA (geo-mesa), because it is recommended for large scale simulations.
Have been reading papers about which tool to use, but I need someone working on simulations to help me out.
Still, I have questions because:
1- The user base of MESA is scarce and i feel that dealing with issues will be dificult
2- So far i have only seen and read about limited research done in MESA. Specially, dealing with road network integrations. (move an agent along a network)
3- It seems that Netlogo is good for prototype, will not handle big data projects
Thanks in advance, and any pointers to courses or moocs would be great.
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I have used Anylogic for many years while considering it as a java Agent-baed environment. The java-based modeling framework is more easy and the running performance is also high.
I investigated the urban mobility system. I have developed more than five models with objectives. If you need help, do not hesitate to contact me.
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I just completed my RFID tag antenna design and simulation with operating frequency 925MHz. Followed by prototyping recently.
The simulation is done with the tag attached on the conformal platform with the polypropylene(PP) material.
However, the simulation S11 frequency band is about 880 - 920MHz for less than -10dB.
What frequency range should I set on the network analyzer to measure the prototype impedance and S11.
Thank you for the help.
Kimming
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Your welcome.
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As far as I know (please correct me if I am wrong), ICs were invented before the invention of MOSFET structure. Jack kilby invented monolithic ICs in 1958 and in early 1959 Robert Noyce invented hybrid ICs.
Did those inventions use BJTs?
I have not found any correct information regarding this.
May anyone please help to reach deeper information about the component type of early IC prototypes?
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As a supplement to the above, I just came about the attached article by Warner on microelectronics. The last chapter, "The Integrated Circuit", presents some pictures included in the patent applications, and by looking at them side-by-side, I think I understand now why Kilby's approach is called "hybrid" and Noyce's device "monolithic": In both cases, all components are embedded in a single crystal, but Kilby uses self-supporting wires not only for external but also for internal connections while Noyce's internal connections consist of an isolating layer and a conducting layer grown directly on the surface of the crystal.
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how does the mental cognition go?
what is the structure like when facing with a product fom/appearance design?
is the consist with recognition of mental prototype?semantic perceved?memory impression?
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Yes.
Crilly (2004) has proposed a model of product design mental cognition process.
The structure of design cognition process is consisted with Semantic Interpretation, Aesthetic Impression and Symbolic Association.
Mental Prototype is always mentioned in Prototype-Preference Theory. It means people aesthetically prefer typical product forms than atypical ones.
Here are the titles of articles: Seeing things: consumer response to the visual domain in product design;
'Most advanced,yet acceptable’:Typicality and novelty as joint predictors of aesthetic preference inindustrial design
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I would like to build a prototype of an ECA/Relational Agent. I am looking for such tools/software that help me in this regard.
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Here are some options for both Voice User Interfaces (VUI) and text chat design:
Design Tools
Fabble - no-code - design and prototype Alexa Skills, Google Assistant Actions, chatbots, IVRS etc. It is available for free but limits the project size.
Landbot - no-code solution for the creation of conversational apps.
Other tools such as Botmock (purchased by Walmart) and Botsociety (being sunset in April 2022) are no longer available.
Development Tools
Voiceflow - a collaborative design tool to design, prototype and build VUIs for Amazon Alexa and Google Assistant. Create up to 2 projects that allows a total of 1000 interactions per month for free.
Dialogflow - owned by Google, it allows conversational user interface design for mobile apps, web applications, devices and bots. A trial version is free with limited features.
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I am a law lecturer, I have just created a law board game, and is now in the process of doing Lab validation & Prototype testing. How do I do it?
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Assalamualaikum Assoc. Prof. Shahrul Mizan Ismail, Ph.D. I recommend testing in the form of Black-Box Testing (this test is used to find out which features may or may not work from the proposed application). Hope it helps and hope to do research collaboration. Thank you so much.
Best regards,
Aulia Akhrian Syahidi
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Through multiple empirical studies, I have collected user needs for an ICT intervention. During this study, I intend to design a prototype and then evaluate the prototype to check whether user needs are captured in the proposed design.
What is the most suitable approach? Quantitative, Qualitative or mixed?
Are we evaluating the features of the prototype or evaluate the user requirements?
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Hello Manoja Weerasekara , even though think-aloud protocol is considered by some authors as a widely used method for usability testing of software, interfaces, websites, and (instructional) documents. It is possible to perceive the satisfaction of users by his/her expression, frustrations, frictions and comments. An interview or Likert scale could be added after the Think-aloud procedure, focused on user's satisfaction with the experience.
The basic principle of this method (Think-aloud protocol) is that potential users are asked to complete a set of tasks with the artefact tested, and to constantly verbalize their thoughts while working on the tasks.
From all possibilities of prototype testing, the Think-aloud Protocol is the most
suitable choice to help observe usability and interaction problems from users’ point of view. According to Villanueva [4], the technique consists of a researcher observing 1–4 users doing specific tasks within a controlled environment. The user’s actions and thoughts are to be described verbally aloud by him/herself on real time. The researcher records the user actions by written notifications, video or voice recorder.
The participants are to perform a simulation of tasks using the prototype. The Think-aloud Protocol has to be executed individually and the steps of the task to be closely observed with participants verbalizing actions, thoughts and confusion: do users understand what is the app? Do users cognitively understand icons and actions to take? What is the visual perception of users regarding colors, types, size, icons and visual impact? Is the process an easy and smooth experience? How do users explore the options?
Nevertheless, I've been feeling that for remote research, cooperative evaluation can be more useful e easier to execute.
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I have designed an Digital Artifact (Web based solution) and now looking for a best possible ways to evaluate the prototype. Is it necessary to evaluate each and every 'Design Features/Requirements' or is it will alright to check by grouping the common 'Design Features/Requirements' ? (Looking for more information than just specifying questionnaire, interviews, surveys, etc.)
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Don't hesitate to organise quick and dirty pre-test to evaluate your prototype in its protocol, especially if it's your first iteration.
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I need to know the necessary design calculations to conduct and how to go about it
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A combination of a sterling engine and a magnifying lens.
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Hey, Could you please spare 10 minutes and watch the related video of my prototype and answer the required questions?
I really appreciate your time.
Thank you
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I think this is a very well done program. I believe that adding in images and videos of a real dissected heart/organ will be helpful as well. This would give the students an animation that could help them visualize the function of the organ, as well as how it looks in vivo.
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I made a PID-based control system and now am asked to augment my finding with a prototype. What this prototype refers to? Should I make a total system in Matlab or I will have to implement it physically?
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Dear Md Rayid Hasan Mojumder,
I completely agree with what is said and I add. A prototype is a rudimentary working model of a product, information system, or control system typically built for demonstration purposes or as part of the development process.
For more details and information about this subject, I suggest seeing links on the topic.
Best regards
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In the last week, one of my journal got rejected from International Journal of Human-Computer Interaction. Now I want to resubmit it in another journal. If anybody suggest me a Q2 or Q3 journals. The title and abstract of the journal is given below:
Title: Dynamic User Experience for efficiency enhancement based on facial expressions
Abstract: The main motive of Human-Computer Interaction is to make human comfortable while working with interactive computing device so that it can increase human efficiency and release the human trouble and saves humans’ time. In this paper, we recognize the face first then change the UI automatically based on his facial expression. Some of our personas also proposed the similar idea of building a system that would play music based on their facial expression. These scenarios gave us the idea of making an integrated system of dynamic user experience based on facial expression. So, we started to collect the data of our paper-based on questionnaires and interview approaches. Then made some low fidelity prototype during requirement gathering phase. We also made some high-fidelity prototypes using Axure RP to show the stakeholders the likely output of this paper. In the new phase, we have used the software engineering model and then implemented our code in visual studio with live server extension. Then we have followed the cognitive walkthrough model as our evaluation method. During the evaluation, our stakeholders need not have provided any input manually and it was easy to earn to use the system. We found that there should be a high-speed internet connection and we have to use VPN to handle some issues. The user was not feeling fatigued or discomfort at all because it is very easy to learn. Anyone can use it and who wants to use it just need to be in front of the camera that’s it. So, the user was very much comfortable and happy to use our system.
Thanks in advance.
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INTERNATIONAL JOURNAL OF HUMAN-COMPUTER STUDIES, INTERACTING WITH COMPUTERS. best of lucks with your manuscript
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Hello,
I am trying to scale up a shaking table test, and I am wondering what is the factors that should be considered to have a similitude model to the prototype. How can I scale the input motion, shear wave velocity, ...etc.
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Hi Fouad,
I remember to try this in my M.Sc. so here is a tip: there are scale factors suggested by Iai 1989 for 1 g soil-structure-fluid models in 1g gravitational field. These factors have been updated as well. There are scales for length, density, the porosity of the soil, stress, and... Here I have a sample paper for you to have a look:
Best of luck,
Ali
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What is your opinion on how much patients I need for a early feasibility study (ESF) to access in human device functionality of a prototype?
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Dear Thales Paulo Batista The first part of the answer to your question is simply: 'how long is a piece of string'? That is, the sample size of a test procedure depends on the accuracy and precision of the procedure. What measures will you take to test this prototype? The classic answer is threefold:
Effectiveness: proportion of correct solutions made by testees
Efficiency: amount of mental enegery expended by testees in arriving at correct solutions
Satisfaction: internal mental state of testees after they finish work with the prototype
See the ISO 2941 standard (browse for it!)
Unfortunately, Effectiveness and Efficiency do not have standardised test procedures, although Satisfaction does: see my work at sumi.uxp.ie
The other part of the question is: 'how big is the gap'? That is, to what extent does your prototype exhibit all the behaviour a testee will expect to see in the finally developed app. If your prototype is missing functionalities that will be obvious to the testee, then either 'more work is needed' or you may wish to test with a wire-frame model or a good paper prototype using a Wizard of Oz method. Using these partial methods, you will not wish to rely on quantitative data, but listen carefully to what your testees are telling you. Classically there is no predictive model for sample size in such open-ended research: you carry on sampling until you achieve 'saturation': that is, you start getting the same reactions over and over again.
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Hello,
I am interested in this research field. I have the prototype of my microfluidic chips, but I am having a hard time finding literature that says exactly how they incubate their chips (with syringe pumps and all) in the incubator? How is it done?
I want to culture cells in the channels in the chip, with a constant flowing media, but is it feasible to put the whole syringe pump into the incubator as well? TIA
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Hi. Does anyone know how to control the humidity in an anaerobic microfluidic setup? My sample dried out after a while.
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Hello
My colleagues and I intend to implement a real-time controller. So that a simple real first-order system is controlled by a controller designed in MATLAB/Simulink environment (Rapid Control Prototyping). We would be grateful if you could help with the following:
Is this possible with the help of dSPACE devices? And in that case, with what tools? For example, is the DS1202 MicroLab suitable by itself?
In general, what configuration is proposed for such a system in real-time modeling? (In the academic field)
We would also be grateful if you could suggest an example (project, article, book, schematics, etc.) in this regard. Unfortunately, with so much searching, most of what I found was just PWM generating for power electronic converters.
We are also interested in any advice and experience you have had in this field.
Thanks & Regards.
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You can easily implement the controller on TMS320F28335 microcontroller. You can see my video for more advanced controller design:
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My students are using the following software in developing their prototypes for the Software Engineering course projects:
- JustInMind.com (Interesting, can develop mobile app, but needs a learning time)
- Wix.com (Easy to develop, but limited to e-commerce apps), and
- Visual Studio (Not easy for the new learners, but can the prototype be promoted to a real app)
- I am also investigating the wireframe of Visual Paradigm.
Can you suggest to me more interesting and easy to use prototyping tools?
Thank you.
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Figma it's an interesting tool with an active community that can be helpful for beginners. It's a free web-based design tool and easy to learn.
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I am an intern working on a prototype for a supercapacitor, i need to compare the results i have with a flat and porous golden electrode, i want to know how do i proceed to purchase such item either from a lab or a company?
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Hello Chen Jingwen, thank you for the answer.
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I want to create a general fuzzy TOPSIS software prototype. If you have time you can check this link:
The above link is the demonstration what I exactly want.
Can someone give me the directions how can I do that?
TIA
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Nice application. Congratulations. I see Fuzzy AHP in the site. There are very different approaches on Fuzzy AHP in the literature. I think you must add detailed descriptions about methods.
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I am working on a project on designing and testing new materials and different structure(3D-infill) configurations as prototypes for the mid-sole of a running shoe.
I was wondering about the functional properties that would be required from the mid-sole of a shoe to optimize its performance.
Any leads regarding mechanical/functional properties of running shoes, midsoles or regarding mechanical testing of midsoles would be very helpful.
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weight acting capacity, stiffness, material, strength etc.
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Where can I get the code for K prototype algorithm for mixed attributes? Has anyone implemented it in any language?
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I recently found an implementation of kprototypes in Python.
Besides, here is a useful example of kprototypes.
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Currently I am doing my final year project and I need to simulate an automated lubricant dispenser for a CNC Tank (the tank which located behind the machine). Not to be confuse, I am not modding or changing the lubricant system in the machine but I am trying to find an automated way to ensure that no manual labor needed to refill the tank weekly.
The aim of my research is to simulate a working dispensing system that can refill the tank automatically and monitor the amount of lubricant use during each refill.
Does anyone know a software that enable me to simulate the project? or should I just make a mini prototype of the system using arduino?
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If your research goal is to develop a conceptual prototype, model, an app, or an algorithm, would that be qualitative or quantitative research ?
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Design Science Research (DSR) is a research paradigm, on the same level as behavioral research. A paradigm guides the decision regarding methodology, which dictates the logic behind the selection of methods.
Qualitative or quantitative addresses the level of methodology. Thus, the terms can not be used to describe design science research.
To make an example, you can build an artifact and evaluate it via expert interviews (qualitative) or via a field-test with surveys and performance monitoring (quantitative) - it depends on your problem, resources, and expected contribution.
For further reading, I would suggest the following articles:
Crotty, M. (1998). Foundations of Social Research - Meaning and Perspective in the Research Process (First Edit). Sage Publications Ltd.
Orlikowski, W. J., & Baroudi, J. J. (1991). Studying Information Technology in Organizations: Research Approaches and Assumptions. Information Systems Research, 2(1), 1–28.
Goldkuhl, G. (2012). Pragmatism vs interpretivism in qualitative information systems research. European Journal of Information Systems, 135–146.
Iivari, J. (2015). Distinguishing and Contrasting two Strategies for Design Science Research. European Journal of Information Systems, 24(1), 107–115.
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Hi, I wondered if you could spare a few minutes to watch this short video of a prototype Predictive CAD system (created by our research project) and answer some questions afterwards?
We are interested to get thoughts and reactions of a wide range of researchers, engineers and industrial stakeholders:
Many thanks
Prof Jonathan Corney
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I think the question itself is interesting. As for my own opinion, I see an immediate danger in relying on the simple automation. I am not an mechanical engineer, but I would imagine placing a hole in the flange (taking the example from video) requires certain knowledge of material, application, codes, etc. Simply the fact that the hole was used by the company before that, does not guarantee safety and reliability of the new product. In electrical engineering world, all decent CAD tools have high degree of automation, but our company prefers manual layout to ensure design quality. Using design automation requires immense amount of labor setting limits, rules, parameters, etc. For some large companies it might work, though. Or, for repeating projects. Again, the question is interesting, I see it as more philosophical than technical.
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Hi, currently I am embarking on the journey of PhD. My topic falls under the subject of software prototype development that can be used for solving issues in Islamic Studies?
In writing Methodology Chapter, I am still unclear on how to describe my Research Methodology for my software development. Appreciate if anyone could weigh in on this matter?
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Yes! You are very right! In your field it means using astronomical methodologies for the service of Islam! I think your question is related to astrophysics, the way you have explained it!
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i am working on a parabolic trough CST for generation steam with medium temperature .. i want to do this with a small prototype so if you recommend me any example or prototype simulated or tested
i need steam for industry (T=170° P=8bar)
thank you
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I have made prototype that can generate heat in summer. Its depend upon the type of your receiver material. if you used a SPT having an aperture area of a 1.5m2 with pure copper receiver piper with black nickel coating, and , so by using that parabolic trough collector you can easily generate steam if the atmospheric temperature range in between 35 to 45-degree Celcius.
OR check the attached article it will be helpful for your concerned question.
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The Canadian Institute of Mass Communication (CIMCweb.com) is embarking on a pilot project to create language-barrier-free learning environment for deaf students, as a scalable model for Inclusive Education. The prototype system would utilize relevant available technologies, including HamNoSys/SiGML programming and Applied Artificial Intelligence. Contact santosh.shail@CIMCweb.com.
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Congratulations for this great project of the Canadian Institute of Mass Communication (CIMCweb.com). In Brazil, we developed the Hand Talk app. This is a revolutionary app for the deaf community. Representing an accessible solution, the app was acknowledged around the globe for its innovation and potential. The startup has won a number of awards including the Best Social App of the World in 2013, handed by UN at the World Summit Mobile Award, in Abu-Dhabi.
Best regards,
Carlos Alberto da Silva Júnior
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I am trying to carry out numerical analysis of reinforced earth walls using the software FLAC 2D. I am validating my numerical model with the results of a centrifuge test carried out under 50g centrifuge acceleration. I wanted to know if I should carry out the analysis in model scale or in prototype scale for better results? When I am carrying out the analysis in model scale and an acceleration history (sine wave amplitude 0.2g frequency 2 Hz time 12.5 s in prototype scale) with amplitude 10g frequency 100 Hz time 0.25 s in model scale, I am getting results that not at all matches with the experimental results. I am attaching the paper in which experiment was reported for reference.
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Hi , Good time I'm also modeling the same wall model. If possible, you can share the model codes or prj.file with me. Thanks a lot... omidsadeqzadeh@yahoo.com
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I am interested in measuring the underlying inflammation associated with viral infections (corona virus or influenza) to test the hypothesis that a inflammation-associated severity index might have clinical utility in treating patients. The prototype can be seen at: https://cslide-us.ctimeetingtech.com/actrims/attendee/eposter/poster/66
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Good topic
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Hello everyone,
We are developing a Automated Guided Vehicle(AGV) for industries. We have developed a prototype which is working very well using embedded arduino board. Now we want to mass produce this model for the market. We are not sure which Micro-controller board to use other than development boards and PLCs. We don't want to use PLCs since they are expensive and will increase the cost of our product. Some people told the same embedded arduino mega can be used for production model also with proper protection from dust,humidity etc which are common in industries. Yet we are not sure so we looking for boards which we can use in our AGV. We also don't have in-house capability to develop the board on ourself. So can anyone suggest any company or product (specifically Micro-controller ) for us to use in industrial automation other than development boards
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We used Galil PLC in our experiments, but It was expensive. Then I tried to make our own PLC based on Arduino. For beginning Arduino is good. If you will add any functions the better variant is mini PC.
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I design a prototype for sorting tomatoes based on size and colours. The prototype will sort big red, big green, small green and small red
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Every thing that you expect from the machine should be evaluated. For example, sorting percentages of red, green, small and large.
Damage fruit percentage.
Power consumption
Break downs of the machines
injuries caused to operators
Time wastage
User feedbacks
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I want to validate control scheme using DSP and Hardware setup, which i design in MATLAB simulink. So is there any reference guide book, which can guide me through every step from prototyping to generating code in Simulink or PSIM and test it on prototype.
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In PSIM it is very easy to interface your power converter whith TI28f335 using Processor in the Loop (PIL) provided in PSIM (This capability is provided in PSIM10 and higher versions). PSIM added another power full and low cost target which can also be used in PIL tests (28F379D: PSIM ver.12). In my opinion its a powerfull tool to test your control algorithm whithout having the physical system ( actual power converter). You can visit PSIM home page for further information and guidance.
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I have a prototype that will sort tomatoes based on color and sizes
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Before you launch into assessing it may be worth asking what it is you are trying to measure exactly. Is it the automation algorithm, the sensor, or human monitoring? The end result will be a combination of these I suspect, so best to try and capture these components also.
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I am studying face mask components and want to make some prototypes.
Does anyone have the capability to make some masks?
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I Agree With Ron Reiserer
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I did experimental analysis of scale model ship to get RAO.(S.K chakrabarti text on hydrodynamics says,scaling up can be done.)
The question is if create model in software & prototype in software and run analysis,will the result be similar for both software simulation, will we get same RAO?
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Usually it does not, although the solutions do not differ much.
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I am looking for success stories or failures when a design approach has been used by scientific research. (building knowledge and concepts by exploring user-needs, prototype, test and iterate)
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Hi Ulrika
Probably it's a bit early to say, but I think we achieved quite interesting results by applying design thinking tools, in a co-creation workshop. The workshop was aimed at developing new virtual reality applications to be used in municipal inpatient and outpatient rehabilitation facilities, and we invited a heterogeneous group of physiotherapists to participate in creating content.
The content based on the workshop results are currently being tested and evaluated both in Denmark and in Australia.
Paper:
Pardon the shameless self-promotion :)
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Hello Sir,
So i have a foam based temporary prototype of a component which i want to be 3d printed. I wanted to make a cad model of it via solidworks or catia but it is too complex to model. If I uses mimics i have to import images in format of DICON file format. I want to take images of the foam prototype and then want to do analysis of it. Also after getting the 3d model i want to make some edits in it and then want to do analysis of it. Please suggest me a way to do. It would be very helpful.
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you can use a "3D scanner" like the one from sense, peel 3D etc. to extract the exact dimensions for your prototype. You can edit the scanned file using the same software with the scanner and analyze your prototype. This .stl file can be transferred to slicing software like CURA, ready to print in the FDM 3D printer.
I hope this might be helpful.
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Hello researchers!
I am currently writing my thesis and is trying to analyse my data. We thought we could use a z-test but since our collected data is not normally distributed we are trying to find a new method to use. We collected data via a survey where the participants looked at prototype 1 and later answered questions in a 5-point Likert scale, before moving on to prototype 2 and answered the same questions for that one as well. We want to compare the two prototypes as well as look at them individually. The participants were a convenience sample and we got about 80 answers.
Does anyone have a suggestion on what kind of data analysis method we could use?
Any help is very welcome, thank you!
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Hello Jessica,
It depends on whether you intend to create some sort of summated score for the set of item responses (on the Likert-type response scale), or to compare individual item responses across prototypes. (As well, the decision of how to combine item scores if that's the intended direction: via IRT model, via factor analysis, via researcher-declared method, etc., will make a difference.)
Since it appears your participants rated each prototype, the scores should be considered matched/correlated/dependent. Wilcoxon's signed-ranks sum test could handle the statistical comparison, without imposing a need for normality or for interval-strength scores.
Good luck with your work.
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I want to file a patent for my prototype/method. The total cost on the fabrication of prototype was Rs. 250 only. What's the simplest way to file it and how much it will cost to me.
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Thank you for sharing the information. There was not a clear/complete information available on websites regarding the total cost, when an individual is filing for patent. Thanks again for clarification.
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This graph shows the prototypical structure of Iron(II) sulfide . I want to know which program can we use to illustrate this graph?
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To Malikeh Rostamzadeh : your site seems very good! Regarding GeoGebra, I already wrote that is not the best tool for this issue, but such graphs can be done there. GeoGebra is having 3D window, where we can place dots or even spheres with some constant radius. All elements can be in colors... Lines (bonds) is easy to draw and to color too...
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I need help on the best definition of FLOOD
And also an Architectural Solution to flood that can be prototyped
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Dear Dr Ahmad
I advise you to follow the attached presentation.
Best reagrds
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I don't know how to design the architecture using the PCB board and how to test the fabricated prototype ? can you help me out of this issue?
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Dear,
I suggest you read the attached article and references to understand the need for 6 TX / RX ports:
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In my survey, I presented the respondents with pictures of 2 products (new Vs prototypical) and ask them to rate their relative preference on a 7-point scale.
The measure question was:
For category 1, which product would you be more likely to choose?
1= definitely product A, 7= definitely product B
The design was 2 (product type: new/prototypical) x 3 (product category). Both were a within-subject design.
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MEMORE was the tool that I tried to use for the mediation effect.
My model has a mediator: perceived quality.
Since I wanted to know if the quality perception mediates the effect of the design newness on the product preference.
Thank you for your replies, I do appreciate every advice.
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For a masters course, I am currently writing a small paper on organisations as a whole.
Explaining it in different categories, such as an essentialist, goal directed and prototypes.
For an additional requirement, I am required to find a counter-duck example of an organisation. In other words, I am attempting to find a social entity that acts as an organisation with a common goal but is not formally recognised as an organisation.
If it is still unclear, I can clarify further but in the mean time, thank you for any assistance.
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So far, the best result I have been able to come up with can be described as DAOs or decentralized autonomous organization (DAO), sometimes labeled a decentralized autonomous corporation.
Though it still contains certain characteristics of an organisation, I feel that it lacks the formal recognition because it does not own a central government.
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My team and I have developed a prototype of an augmented reality mobile application for teaching primary school students human anatomy. We are going to do a usability testing and evaluation with the primary school students using FUN toolkit, and we are also going to conduct an expert review using heuristic evaluation and cognitive walkthrough. Furthermore, we also want the teachers to test the app, and to evaluate the usability in the context of their students' usage. However, the teachers are neither usability experts nor end-users so what is the most appropriate method for them regarding usability testing, survey design etc? Do you have any recommendations for usability testing methods, survey design/template etc.?
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I would let the teachers have a test run and then interview them afterwards about their pedagogical views. I see no real need for a CW with the teachers. I would include them in the test with children though. They will be of great help in verbalizing issues that the kids cannot identify themselves and they know the children and are expert about children’s behavior. Ideally you’d let the teachers play fist so they know the interface. My2Cents
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I want to see what everyone thinks about this and if you have some information that can be useful it would be nice. I'm trying to find some kind of advancement I can make in this aspect since it may be an optimal way to do it, and seeing everyone's point of view in this, its gonna be a huge help.
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Exposure to Music Alters Cell Viability and Cell Motility of Human Nonauditory Cells in Culture
Nathalia R. Lestard and Marcia A. M. Capella
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Hi, I'm trying to design a reduced scale model of a turbine tested with glycerol. The prototype idea is to install a turbine in tailings flux to recover a percentaje of energy from it.
The reduced scale model will test the turbine (reduced scale) functioning with glycerol, to simulate viscosity and density of the tailings. The porpose is to get the efficiency of the turbine functioning with tailings.
I have two main questions:
1. Which parameter should I match to scale the machine ? Reynolds, tip speed ratio?
2. How can I scale the viscosity? reynolds?
I feel I need more equations to develop the similarity between Q, RPM, Viscosity, density, etc.
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I am more familiar with pump tests but a quick Google brought up this document which should provide you with all the information you need:
IEC 60193:2019
Hydraulic turbines, storage pumps and pump-turbines - Model acceptance tests
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Imagine an assembly line where objects are lined up and passing under a sensor.... The objects are smallish, about the size of a sugar cube, and randomly shaped. Some are cylindrical, some are squarish, some are round.
All the objects are metal and could be steel, aluminum, or brass, or some other metal or alloy.
I need a way to detect only the brass objects and pluck them from the rest of the objects.
Would an ultrasonic detector be able to do this?
Or wavelengths of light, high frequency sound?
I'm not looking for a complete solution, just an avenue that has promise that I can research and prototype.
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Dear Andy Cowan ,
A simple solution would be a vision system (i.e. a camera), or an inductive sensor with the corresponding reduction factor for brass targets. Alternatively, you could use luminiscence sensors, contrast sensors or as mentioned by U. Dreher , color sensors.
There are several industrial providers for those different sensors, here a few:
Good luck!
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Hi,
Our lab is building a prototype for cell analysis. It is currently being tested by engineers in an R&D setting. I want to assay for cell death but do not want to use dangerous drugs to do this as I want to limit exposure of staff to drugs. Can anyone suggest a chemical to induce cell death - I was thinking of using hydrogen peroxide but am open to other suggestions. Thanks
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Thanks all. I had also considered nutrient starvation so that is something I will try. Marc, I am also going to give Triton a go, many thanks for the suggestion.
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I have designed a 3 Output differential.?
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Respected Bart Kemper, thank you for your advice. I will be applying for the patent through my university. They will be the ones dealing with the costs and the formalities associated with the patent. I am a researcher, so the patent will be of value to my profile. I am unable to determine where to file the application, should I file it at WIPO (World Intellectual Property Organization) or should I go for a US Patent. I am not sure which would reflect better in my profile. I would be grateful to know your perspective on this.
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Hi All,
So a little introduction, our group is making solid state devices (MRAM etc) but so far we have only work on proof of concept stage.
So how can we bring it to the next stage? how can i start the circuit design and the tapeout stage?
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It depends on what you mean by 'proof of concept' and 'prototype'. It also depends on what your objectives are.
But if your objective is to make progress towards commercial realization, then I would recommend involving a commercial partner at an early stage. They will know much better what the market wants/needs and therefore what the prototype needs to demonstrate.
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I need suggestions on the best type of support structure to be used for 3D printing Inconel 718 using Island strategy (5 x 5 mm). Will these structures affect the texture of the part produced? It would be great, if anyone could send the matlab file for generating the coordinates of the advanced support structures.
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Dear Roshan,
As you may already know, support structures are used for several reasons in additive manufacturing, and in laser powder bed fusion processes (like SLM) example purposes of those structures include anchoring the part and dissipating the heat.
Support structure generation is usually done by support modules of job / CAD preparation software such as Materialise Magics or Autodesk Netfabb. With these software you can generate various types of supports such as point, line, block, web, gusset etc.
However the selection of support structures is mostly influenced by material type. In this regard, you may not be able to use same type structures for aluminum and nickel alloys since thermal conductivity, thermal expansion, yield strength and other properties of these materials are extremely different from each other. Inconel 718 and also other Inconel grades mostly require block supports or even solid (full) supports for sufficient heat dissipation and also strong anchorage. To understand geometrical elements of these structures and to see the effects of the dimensional changes you can check our paper called “Investigation of Support Structures for Direct Metal Laser Sintering (DMLS) Of In625 Parts”.
I hope you find the response helpful.
Regards,
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Dear Friends,
Is there any new work about fusion reactors more than a prototype
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Please see the results obtained in different (from tokamak) approach to fusion problem employing HT plasma confinement in linear magnetic traps. One of the leading researchers in the field - Alexei Dmitrievich Beklemishev
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Hello everyone!
I am a new comer for the research of portable or wearable sensor for disease diagnose. If such sensor is integrated in smart phone, it will be promising. The current portable sensors are isolated from smart phone, but can be candidates for smart phone additives. Would you like to tell me about some companies, which already developed some portable sensors or detectors for health care.
Thank you very much!
Best Regards
Zha Li
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I made a thermal neutron detector based on 10B layer that was made by PLD technique, and I use a silicon photodiode for detected the particles. In this way this was my project for my douctor degree and I finished him. I am writing a paper about it results that hope publish soon. And my idea is to use this prototype and made a dosimeter based on him. For this reason I am very interest in have more details about your project.
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Thank you very much for this information and I will read the paper that was recommended.
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Dr. Tamer
This is an interesting subject that we have carried out in detail with Arab Organization for Industrialization (AOI).
Please communicate with me on (elshama@scf.edu) or using WhatsApp , Viber, or Messenger on +1941 284 9627 for more details if you are interested in cooperating with us.
Dr. Awad El Shamy
State College of Florida
Vrnice Campus, USA
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Of course. It can help us to know the rationality of the design.
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Automatic insulin injection pump-to avoid daily painful injection for type 1 diabetics patients.
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Following
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We have a few corrosion setups that we are looking to upgrade and to develop their advanced versions. We need people who can work with us to design and develop the same. All help is appreciated.
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Shayma
What you are doing is right.
I do not advise you to go for companies that can cost you a lot!
Corrosion lab does not need a company to design or construct based on my experience in Canada and UK.
I myself established a corrosion lab in Qatar University and did every thing my self based on the different corrosion labs I saw in my life.
You just need a space and typical lab set up with few modification though.
Whatever you are going to do depend on what type of experiment you are going to conduct, therefore you buy the equipment which you can start with. then you could add more as needed.
Hope that helps!
Elsadig
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Which device would you use as a gold standard for verification of the project relate real keratometry of the eye. I want to verify the anterior, posterior and the real power, Sim K of the posterior, anterior and true values.
I was thinking about Casia 2000 SS-OCT from Tomey but they do not have FDA. So, what would be the best reference for the prototype software: maybe Pentacam or GALILEI from Ziemer.
Kind regards,
Bart
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If the gold standard assumes a device that is the most prevalent and the one that we can compare the other topographers with, then it is definitely Pentacam, although many other units may be better in one way or another. As mentioned earlier, the future lies in OCT technology, the fanciest of all currently being Anterion by Heidelberg.
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Hi All,
I am working on the prototype of a three phase bidirectional dual active bridge DC DC converter?I am having DC offset in the current on the primary side of the transformers which is causing loss of efficiency.I would be grateful if any one in this community can shed some light on the potential causes of DC offset?
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did you solve your problem. i am having same problem in DAB.
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Hi,
I am working in Rapid Control Prototype(OPAL RT 4500) Permanent magnet synchronous motor driven by Multilevel inverter(Three level) for Inverter the firing pulses are given by Simulink through OPAL RT. When I increase the voltage level from zero the motor is magnetically locked. Can anyone help me to resolve this?
Thank you
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These motors require a variable-frequency power source to start.
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i intend to have solar source to run my prototype but tentatively i cant use a pv panel to get energy.what alternative can i use?thx
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Dear Jonas,
You can use instead of the PV generator a rechargeable battery having the same voltage and can deliver the same current for certain working hour with sizing the battery capacity in ampere hour. After discharging the battery you can recharge it from the mains supply.
There are other electricity generators according to the load demand.
Best wishes
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Arduino supposed to be utilized for prototyping smart ideas like as wearables, however, seems they are narrowing down to certain similar ideas... I guess it can lead to Design Fixation... What's your opinion?
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Design fixation is intrinsic to the designer's personality, capabilities, propensities, etc. and is independent of the immediate and present external world. All tools at some point become limited (and limiting) and they are eventually extended by the demands of those designers who are not anchored by them in their design creativity. In contrast to the "tool extenders" others may be trapped by comfort and success in using a specific tool, and often channel their creative trajectory by what the tool affords them. For example, following Koen Van Turnhout's example, most instructors in product design challenge students to keep sketching with the assumption that sketching is less limiting then CAD, at least in the morphological aspects. It is not always the case, but mostly true, at least with students at earlier stages. Same with Arduino, Fritzing may be more liberating, but then at some point someone will run out of canvas there and will need to extend to another tool (e.g. VHDL equivalent).
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Can i use OwnWIQA environment in the project prototype to create a different interfaces ?
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Thanks .
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Is the project prototypes provides a graphical representation of the relationship between the elements and links between prototypes?
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Thanks.
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How can i developing prototyping tools in software design ?
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You may use Rational Rose Software Architect (IBM) to develop software engineering design and based on design, you can develop prototype using any language Java, C# etc .
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I'm currently working on a project which should produce a Prototype of a MOOC agent capable to assemble text, video and sound channels from different learning sources and adapt to the personality of the user. I've go the theoretical framework, but I need experienced researches so I don't just work in my own isolated bubble. Thanks
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to make a easy prototype of your network.
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For easy prototyping, I'd recommend Ryu: https://osrg.github.io/ryu/ written in Python, very straightfoward and easy to program.
However, if you want to get closer to telco deployments, I'd go for ONOS: https://onosproject.org/ which is a bit more complex, but more realistic (up/down of apps during runtime, great CLI, REST and GUI interfaces, etc.). Moreover ONOS is supported by the ONF.
OpenDaylight (ODL) is ok, but personally I believe it's too complex as a first step, as its architecture is too generalized and it is difficult to model new modules if you're new into SDN. But this is just my opinion...
(Note: I've worked with Ryu, ONOS, ODL, Floodlight and POX).
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I've read a paper describing the modelling of a half-wave rectifier based on Schottky diode (Schottky model.jpg). The model is well-known, however, the author explains the scheme of such circuit and fabricates the prototype differently (please see two other figures). I do not understand why the diode's cathode is actually connected to ground? It is supposed to connected to the load as shown in the first image! Here is the description of the author: " Diode’s cathode is connected to the ground which locates at the position that magnetic field reaches its first valley to obtain maximum current in the circuit". Is there any mistake in these? Any advises are highly appreciated.
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please read my book (The American University Laboratories For Electrical Engineering Part 1)
It has one part on this.
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I expect to make a prototype at the size of 1" diameter disks. I expect to make the housings by 3D printing. The disks, by laser cutting spring steel, the rotor by machining brass or steel.
What is the best material for plating the housings, to reduce wear:
A: for pumping water?
B: for pumping crude oil?
C: for creating vacuum?
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I think nickel plating is the most suitable metal coating for protecting metal surfaces against corrosion . For more information please follow the link:
Best wishes
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I am conducting research on the applicability of blockchain technology for electronic health records. Part of my objective is to create prototypes with blockchain technology. I would like to determine which blockchain technology/technologies are most suited for EHRs. It could be one blockchain technology or a combination of them. I was wondering if we could discuss some use cases/prototypes that would be worth it to explore with blockchain technology? I am also concerned with how I would proof the validity of a prototype?
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