Engineering - Science topic

ACI report ACI 231 Report on Early-Age Cracking: Causes, Measurement, and Mitigation is available from ACI web site. Key causes include autogenous shrinkage, drying shrinkage, and subsidence cracking, in addition to any poor design and construction issues. Proper curing is critical to avoiding early age cracking. Mitigation strategies include internal curing (lightweight aggregates or superabsorbent polymers), shrinkage-reducing admixtures, and coarser cements (see the work/advocacy of Richard Burrows in the US).

Thank you Leon Levine . I was able to find quite a few publications which study the Metzner - Otto constant and it's values for different types of fluids and Rotor- Stator configurations. My Reynolds number calculations were quite good and I'm pleased with my results.

Ziheng Zhang In the engineering profession, there are several possible uses for extended reality (XR). Among the options are:

- Engineers can utilize virtual reality (VR) to construct and test virtual prototypes of items before building them in the physical world. This can save engineers time and money by allowing them to detect and correct design flaws before manufacturing physical prototypes.

- Training and education: Engineers and other technical workers can benefit from immersive training simulations created with virtual reality (VR) and augmented reality (AR). This may make learning complicated topics and procedures more entertaining and successful.

- Remote collaboration: XR may be used to connect engineers in various places so that they can collaborate in a shared virtual environment. This can help with project communication and cooperation regardless of location.

- Maintenance and repair: Using AR, engineers may get real-time information and directions while doing maintenance or repairs on complicated equipment.

- Site inspections: With XR, engineers may conduct virtual site inspections and discover possible concerns before they exist.

Overall, the application of XR in engineering can assist to simplify processes, enhance efficiency, and promote field accuracy and safety.

Because the Dead Sea is a closed area in which there are no outlets, as it is fed only by the Jordan River, so the water evaporates in the closed ocean more than it evaporates in the open ocean, in addition to the hot climate there so This causes the water to evaporate, leaving behind the salts

To calculate an ANOVA (Analysis of Variance) table for a quadratic model in Python, you can use the statsmodels library. Here is an example of how you can do this:

#################################

import statsmodels.api as sm

# Fit the quadratic model using OLS (Ordinary Least Squares)

model = sm.OLS.from_formula('y ~ x + np.power(x, 2)', data=df)

results = model.fit()

# Print the ANOVA table

print(sm.stats.anova_lm(results, typ=2))

#################################

In this example, df is a Pandas DataFrame that contains the variables y and x. The formula 'y ~ x + np.power(x, 2)' specifies that y is the dependent variable and x and x^2 are the independent variables. The from_formula() method is used to fit the model using OLS. The fit() method is then used to estimate the model parameters.

The anova_lm() function is used to calculate the ANOVA table for the model. The typ parameter specifies the type of ANOVA table to compute, with typ=2 corresponding to a Type II ANOVA table.

This code will print the ANOVA table to the console, with columns for the source of variance, degrees of freedom, sum of squares, mean squares, and F-statistic. You can also access the individual elements of the ANOVA table using the results object, for example:

#################################

# Print the F-statistic and p-value

print(results.fvalue)

print(results.f_pvalue)

#################################

I hope that helps

Carbon sequestration is one big use of soil.

1. Im not sure if its logical, but as it is doesnt effect the stability slope much. If you predict it higher and repeat calculation, you could get much different results (less stable slope). So if you dont have any data and you want to play it safe, take into account higher level of water.

Questions 2 and 3 were already answered by others.

One way is to use the publication recommender offered by different publishers. You can search using the title and abstract to get a list of suitable journals. However, as you have already a written article and that too a review paper, you can figure out directly with your references. Digtial twins have applications in many areas, and therfore it depends which area you are working on. One excellent journal is IEEE Transactions on Industrial Informatics.

Cite:

No. Consider the series ... in the above link example/ answer by Mark Gritter.

Both are divergent series, but the difference between the series is ... a convergent series.

Author guidelines can be found at the link below. I did not find a template. https://www.emeraldgrouppublishing.com/journal/wje?distinct_id=185367104f54aa-0dc583dca6a58-26021151-1ce300-185367104f658c&_ga=2.49761190.1402121641.1671655655-1204192968.1671655655&_gl=1*k8of19*_ga*MTIwNDE5Mjk2OC4xNjcxNjU1NjU1*_ga_45RWY1YP1V*MTY3MTY1NTY1NC4xLjAuMTY3MTY1NTY1NC4wLjAuMA..#author-guidelines

1. Investigating the physical and mechanical properties of green roof substrates: Future studies could focus on evaluating the physical and mechanical properties of different green roof substrates, such as their water retention capacity, compaction, and permeability. This would provide a better understanding of the impact of different substrates on the long-term performance of green roofs.

2. Evaluating the effects of green roof substrates on plant growth: Research could be done to assess how different substrates affect plant growth and health on green roofs. This could include looking at the effects of nutrient availability, water retention, and the physical composition of the substrate on plant growth.

3. Assessing the cost and sustainability of different green roof substrates: Future studies could focus on assessing the cost and sustainability of various green roof substrates. This could include looking at the energy and resources required to produce and transport different substrates, as well as their environmental impacts.

4. Exploring the potential for green roof substrates to improve water quality: Research could be conducted to examine how different substrates can be used to improve water quality. This could include looking at the ability of different substrates to filter pollutants from runoff, as well as their ability to store and release water in a controlled manner. These scopes of research are justified by the need to better understand the effects of different green roof substrates on the performance and sustainability of green roofs. Such studies could provide valuable insights into the use of green roofs as a tool for improving the environment, as well as helping to make green roofs more cost-effective and sustainable.

Nekin Joshua Nekin, To each of the above I'll add the school, the prestige of the name and faculty, the stories from friends----the willingness of an employer tom hire you (I'm in the US) is less important than you. Show up everyday willing to study the parts of mech-engineering and learn how to think of them as a whole. Be willing to engage with others students. In my experience, you'll learn more asking what engineering is and what did the teacher mean. In essence together you describe what your ideas are for tomorrow vs a teacher telling you what know from before. Specific to engineering I recommend (I prefer your hands-but thats me) making things. Its a good way to learn how to imagine, solve problems and to offering innovative engineering solutions to a future employer.

Could you please provide an example or two? Thanks.

Revered Professor Sivakumar Pushparaj,

One can find out the particular Journals are Scopus Indexed one or not.

There are platforms these Journals title have to be included to check it whether the Journal is Scopus Indexed or not.

www.scimgo.org is mostly used to check the Scopus Indexed Journals status because the Scopus status will be removed if the performance of the Journals are not up to the International standard of research outputs to satisfy the academic and research community.

There are many hyper links will help to know that whether the Journal is Scopus Indexed or not.

Regards

Senapathy

Ethiopia

to get sponsorship and grant details one can get from the community of chapters managed by the professors, and scientists. Provide the right link and ways to the people to get the right funds from the country. get at https://abcdindex.com/society_page_post_listing.php?type=Sponsorship

They have some expert lectures on that so people can take advantage of that as well.

Online-based classrooms are necessary for circumstances where the learners and teachers feel that the knowledge can be catered to without meeting in person. It is an opportunity for learners to learn at their doorsteps. Nonetheless, online classes are not as effective as offline classes for many learners who take education as a social process where peer learning, group dynamics, and interpersonal relationship are of high importance. Online class doesn't provide the experience of personal interaction while learning.

I can suggest that you look at the questions posed by the circular economy. Below you will find some documents considering this issue from the occupational health and safety side, but the initial approach to this issue in these articles is much more general

In my opinion, it is dominated the bibliography in research paper meanwhile the data in the technical paper.

if you mean low valence electrn for a given volume, the ideal non-radioactive choice would be Cesium. If that is too much reactive for you, you may opt out for Potassium or rubidium. Barium might also come in handy.

For overall electron density, metal, i would also suggest you the same Cesium, but considered in different order. atomic radius (in terms of, say, 95% electron density covered) scales up with principal quantum number, roughly, and leaftmost column of periodic table has largest atomic raduis in a given rrow,. these elements also turn out to be metals. Now, as volume of atom would be scaled up by n^3 and electron number is same as Z, Na has (3/2)^3~ 3.4X volume , while no. of electrons is 11/3~3.7X, a minute rise. going from K to Na, we have (4/3)^3~2.4X volume and 19/11~3.64X electrons. If you thus calculate Z/n^3, you would find than Cs is at the lowest. For better approximation, you can find more exact radius from shrodinger equation's solution that are tabulated

Linear Viscoelastic Range in general corresponds to a low oscillation amplitude, when one is dealing with a frequency sweep rheological test. If you are working in controlled stress test, in which you specify the amplitude range of the stress amplitude, evolution of the dynamic rheological properties especially G' and G'' versus the stress amplitude allows you to determine the maximal amplitude stress under which the fluid shows a linear behavior. The range of the linear viscoelasticity corresponds to the stress amplitude range where G' and G'' remains constant. These later normaly should decrease beyond this maximal stress.

Good luck.

Zhwan Sktani congratulations. I am also a CEng member of the IMechE. Seen this post albeit a little late and wondered if I could be any assistance.

Mathematically, the answer to the equation is zero; the answer Python spat out is pretty much as close as you can get to the representation of zero with a typical computer.

This is a classic floating point problem: https://en.wikipedia.org/wiki/Floating-point_error_mitigation

A builder work drawings will provide in detail the component representation and client communication of what the engineer designed. Contrarily, shop drawings is for fabricators and technician use only and it is basically for determining how components will be produced and placed during the construction process.

Thanks a lot!

According my experience, TRNSYS is the best and most accurate but remains more complicated in order to master the simulation process. Otherwise, energyplus is easy with reliable results.

Hello, again, Shuraik Kader (it has been a long time since you heard from me)

I agree with Rob Keller that this length of time is very long. And, unfortunately, it is longer in some journals than others. That variation depends on the journal (how long it takes for the editor and the staff - what they are like) and depends a bit on your article (if it is a topic that it is very hard to find reviewers for). My advice is to be patient - we authors always want the results faster… If you are bored with waiting I suggest you can start work on your next project/paper…!

Dear Tao Li,

Your observation is very apt. Most of the time the academic articles may not contain adequate details for clear understanding. In such cases you should make you of cited articles to go down to the fundamental/original research works for better clarity. Books are better source for understanding how the methods and formulas are derived from scratch.

Dear Shuraik Kader,

In view of the increasing risk of an energy and climate crisis, eco-innovation-based, green building technologies will be developed in the future to build homes that are significantly more energy-efficient and resistant to the negative effects of climate change. Consequently, the future will mainly develop pro-environmental, energy-efficient sustainable construction. Perhaps it will also be environmentally neutral construction based solely on natural building materials.

Best regards,

Dariusz

Dear Ali Khalfallah ,

For the info you can check https://www.scopus.com and download the latest Scopus source list.

Best regards,

Prof. D.G. Zisopol

Dear all, following a list of interesting books. My Regards

- Fundamentals of Materials Science and Engineering: An Integrated Approach, William D. Callister, David G. Rethwisch, 5th Edt (2015).

- Materials Science and Engineering: An Introduction, 10e WileyPLUS NextGen Card with Loose-Leaf Print Companion Set, Callister Jr., William D., Rethwisch, David G. 10th Edt (2018).

- The Science and Engineering of Materials, Donald R. Askeland, Wendelin J. Wright. 7th Edt (2014).

- Materials Science and Engineering: A First Course, V. Raghavan, (2004).

- Foundations of Materials Science and Engineering, Willaim Smith, Javed Hashemi, 6th Edt (2019).

thank you for your idea

Dear

Thank you for your answer. I think mixing energy cost (MEC) is the index that I look for it.

Please Suggest any Scopus indexed Journals for Fast track publication ( in 2 Months) for Early Childhood Education.

Dear Madalina Serban, please have a look at the following. My Regards

Thank you Kevin Agina Onyango for the interesting question and all professors for the valuable answers.

There is no best fit it all method. Depending on local and circumstantial conditions (pressure, diameter, pipe material, intermittent service, availability of access points, ground conditions ...) the best one has to be selected. For this purpose I recommend reading this comparison of 24 methods:

Dear Jehad M Yousef ,

Short answer no. They have been discussed here on RG: https://www.researchgate.net/post/Are_the_conferences_organized_by_IIRST_and_ITAR_authentic

Just click on publication and you find for example the journal “Webology“ as Scopus indexed journal, buta quick look in Scopus sources tells us that there are discontinued in 2021 (https://www.scopus.com/sourceid/4400151723?origin=resultslist ).

Together with no real contact info is already enough to conclude: avoid this one.

Best regards.

Of course, you will be under confusion to select your Master Thesis title because of Software Design and Engineering is broad area coverage to select interesting and intended title according to your knowledge and experience.

Some titles are subject based or wider areas of application with other concepts like IoT, Networks, Digital linkages etc.

You will be in dilemma until you will select the suitable Title based on your subject.

Go through the articles from Google to get more knowledge regarding the titles which are really looking for.

Alireza Akbari

please write the ODE, not only the discretization You used.

however, for multi-step methods you need to create the starting values using a single-step method for all required nodes. Use a discretization of the same accuracy.

Note that the second order ODE could be written as system of two first order ODE.

Prof. Aditya Kumar Mishra

Teaching was the past, coaching and training are the future, and now is a transition! In my humble opinion,

Best Regards.

Hi dear Kourosh Vaferi,

You can import your 2D model from CATIA software into AutoCAD software and write output DXF.

Good luck!

Times Ascent, you can get latest updates on the related jobs in your region.

Employment News

Invariably the loading on one storey building roof with access is only `1.5 to 2 kN/m2 . and this is uni-formally distributed load. But if you pile up load in a small area more than the failure load of slab with concentrated load then the failure is imminent. this failure load can be calculated using yield line theory or by Hillerborg Strip method.

If you have this kind of loading then keep your props intact before you finish roof top work

Dear Brian Clause,

I'd like to give it a try and answer your question. Before I get to the point, it is important to emphasize that mechanical impedance is a complex quantity that provides the relationship between the velocity response and the force input of a linear system in the frequency domain.

Therefore, if we suppose an 'ideal damper' (with no inertia and stiffness effects), we realize that the corresponding mechanical impedance is given by the damping coefficient. Physically, it means that the damping force is in phase with velocity, and thus an ideal damper is a resistive element that dissipates energy.

However, for real systems in which inertia and stiffness effects must be taken into account, we conclude that the corresponding mechanical impedance is given by terms related to inertia, stiffness and damping of the system.

I've also attached a file from Prof. Mike Brennan if you want to search for more information about this topic. If you want to go deeper, check the reference below:

F. Fahy, P. Gardonio, Sound and structural vibration, second ed., Elsevier, 2007.

Hi,

Kindly refer this link:

Best wishes..

hi,

kindly refer this link:

Best wishes..

Dear Yasin,

I propose the following developmental and current research topic in the field of computer engineering: Analysis of the determinants of creating predictive simulation models for multi-faceted, complex economic, social, climate, natural, financial, pandemic, global problems, etc. based on large sets of information and data obtained from various sources including from publicly available websites and social media portals, including the use of Internet users' sentiment analysis, data analysis on Big Data Analytics and Business Intelligence platforms, and with the use of selected, various Industry 4.0 technologies, including cloud computing, artificial intelligence, teaching machines, multi-criteria simulation models, digital twins, etc.

Best wishes,

Dariusz

Dear Malini Kanapathy, you have to separate the two compound for accurate analysis. After that, the polymer and the carbon compound are subjected to characterization. These include, NMR, elemental analysis, FT-IR, viscometry/GPC, DSC, and so on. My Regards

Participated in the questionnaire survey, Asharf. Good Luck and best wishes for your thesis and letting me know your email address and so, I can also share the questionnaire that I will develop to you via emails for the data collection, Ashraf Elhendawi .

Apart from suggestion received, you can study the SUN DIAGRAM for our location and according plan your design of rooms. Requirement of rooms need to be workout before you proceeds for planning. Architectural planning concepts need to adhere for better planning with respect to your requirement.

A seven-day forecast can accurately predict the weather about 80 percent of the time and a five-day forecast can accurately predict the weather approximately 90 percent of the time. However, a 10-day—or longer—forecast is only right about half the time.

But Extreme Weather Prediction models are yet to reach accuracy

The same concerns will be shared here which means I agree. The supposed standard concept of ethical publishing and research were taught and still in practice. Direct communication to the author/ correspondent is necessary, and in this way, limited access or limited amount of the manuscript maybe shared, both parties protected, and continuum of knowledge is not compromise. Best wishes.@Mahamid

sometimes having a small pumping station for the high lat customers is beneficial.

You don't say the reasons why reviewers rejected your article. Even if you are not satisfied with their comments, it is advisable to correct your article according to the recommendations of the reviewers because you do not hold the truth or part of the truth.

If you give the exact reasons for the rejection, the readers of this platform can help you improve the quality of your article and give you the right advice.

Regards

En mi pais, hay material especial para tratar estos casos y otros mas; por ejemplo selladores, alquitranes, y otros.

Perhaps using a quantum model.

Instead of a proposition of which to say whether it is true or false and to decide which branch to take, a quantum state function that precipitates with a measurement process into one of the component eigenstates and determines which case of a case statement is chosen.

The quantum computer could help.

Dear Claudio Calovi Pereira ,

Yes, there should be a classification as "Architecture" seperately. Otherwise, the categorization would be placed in either engineering/ civil engineering/ construction or building acoustics, where there is little chances for readers to have a review on the specific articles in Architecture.

"What would happen . . .?"

A mature system would reset resp. enter some safe state (in the worst case once the maximum allowable execution time has been exceeded).

Any other system might ruin your day or blow-up the world :(

Yingxu Wang The primary distinction between Level 3 and Level 4 automation is that Level 4 vehicles can act if something goes wrong or if the system fails. In this way, most of the time, these automobiles do not require human engagement. However, a person may still manually override the system.

Yingxu Wang Because all software systems have quality features such as availability, modifiability, performance, security and safety, testability, and usability, basic software principles give common methods or techniques to support those qualities.

Developing an accurate "Time Remaining" indication for downloads, backups, software installation, battery life, and other tasks is by far the most difficult job in computer science. Despite being a persistent cause of anger and shame, little progress has been made on this issue in decades.

Dear Shuraik Kader,

Given Albert Einstein's theory of relativity, cosmology regarding the development of the universe, quantum mechanics, future technologies for building interplanetary spacecraft, etc., time travel is theoretically possible. But in practice the building of a time machine by humans is impossible. Even if a man would achieve the required technological development in the next several hundred years, unfortunately he would not have enough time for it. First of all, a person must first solve other global problems, such as the necessary one is urgent, i.e. in the perspective of the next max. 2-3 decades of time, stopping or significantly slowing down the progressing global warming process, achieving zero-emission economy and avoiding a global climate catastrophe, which may occur at the end of the current 21st century. In order for man to be able to create new technologies of the future, to be able to build interplanetary manned spacecraft, etc., he must first save the planet's climate, biosphere and biodiversity from the risk of almost total degradation.

Best regards,

Dariusz

The simple muiltiplication of the mass by the thermal capacity as Bachir Achour proposes, is valid only at thermal equilibrium. Since buildings are always in a thermally dynamic state, this method strongly overestimente the active thermla capacity. When the ambient temperature continuously changes, the calculation is more complex, and needs solving the equation of heat. Simple mathematical solutions to determine the thermal mass of a multilayer plane building component under dynamic conditions are indeed described in EN-ISO 13786 as mentioned by Edwin Rodriguez-Ubinas.

An experimental method to determine the dynamic thermal capacity of a room was proposed by Van der Maas (see attched paper). The apparent room effusivity can be measured by recording the increase of the indoor temperature after switching on a constant power heat source.

Dear Bassel Hossam Eldin,

I propose the following research topic for your thesis on project management issues: Improving the processes of planning and implementation of construction investment projects and their implementation through the use of ICT and Industry 4.0 information technologies, including the use of digital twins of construction investment projects created in information systems.

Best wishes,

Dariusz

Post graduate degrees are not an absolute necessity for you to perform research as an independent scientist but they certainly help. This is because, unlike undergraduate degrees, they prepare you for independent and original work and offer specific courses on research methodology. However, you can also get informal exposure to research methodology by reading the research work of engineers in the journals they publish. In Shona there is this saying: To succeed you must see how others before you achieved their success (Kugara nhaka huona dzevamwe).

Riccardo Bernardini This is an interesting article. But search "neutron accelerator" on Google and you get many tens of thousands of entry points. The neutron has a magnetic moment, so is affected by any magnetic gradient. Actually by any energy density gradient of the right size and timing. But it is a well developed and valuable technique.

I have been following neutron control methods for many years, but I am looking at low cost methods for research and development groups. And for low and middle income countries. Neutron sources can be tuned, neutrons can be slowed, neutrons can be focused, neutron activation and scattering have many uses. Lots of useful things now. The same methods (and better ones) work on any particle of any size that has a permanent or induced magnetic or electric moment.

("accelerating neutrons" OR "neutron accelerator") has 102,000 entry points (Google, 11 Mar 2022).

If you search for "The development of a low energy neutron accelerator for rebunching pulsed neutrons" there are a few places the PDF is posted.

If you see their equation (1) it has the usual B^2 term that is a good indication that energy density gradient methods are the low cost way to handle it. I have been at this for just over 40 years now. Lots of times the original ideas and methods never amount to much, even if a lot of money gets spent. It is when it gets into "engineering" stage that new products, devices and applications for society happen. With more sensitive amplifiers and ADCs, with high sampling rates and low latency monitoring of real time data streams, many things that were "impossible" a year ago, are possible now. Every day I read the "old" books and papers from the 40's, 50's, 60's, 70's, 80's, 90's, 00's and 10's to see places they said "impossible", and what they should have said, "not economic or possible with our current sensors, computers and algorithms". And that has changed, dramatically, in the last year or so.

I try to track those things every day for the Internet Foundation. Because the methods of the Internet depend on those same technologies applied to problems in all parts of human society.

Richard Collins, The Internet Foundation

excellent quesion

Done

Idir Abdelhek

Thank you, sir. But I don't understand your language.

Aditya Kumar Mishra Scientific answers are already cited by many experts aI can say depending upon the simplest form is that Energy is nothing but ability to do the work......

Hello,

If you use LaTeX then it is just the elsarticle.sty class. This is because the journal is published by Elsevier. You can find it here: https://www.elsevier.com/authors/policies-and-guidelines/latex-instructions

Otherwise, you can prepare your document in MS Word, and submit it through the editorial process. The final layout is done by the production house.

Regards,