Science topics: Engineering
Science topic

Engineering - Science topic

This research group is created with an intention of making an interaction among the research scholars, professors, scientists, engineers & technologists working in the field of Engineering, so that today’s novel ideas can become reality of tomorrow and these all can be implemented in a more constructive manner for the welfare of whole mankind
Questions related to Engineering
  • asked a question related to Engineering
Question
5 answers
Trying to mitigate early-age fractures in concrete buildings is crucial for ensuring adequate durability, minimising potential strength loss, and lowering maintenance costs. Because these cracks challenge the residential comfort and the aesthetic appearances of buildings.
So, what are the alternative measures adapted to mitigate arly-age cracks in the construction industry?
Relevant answer
Answer
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).
  • asked a question related to Engineering
Question
4 answers
Hello everyone.
Does anyone know an analytical relationship for computing mixing Reynolds number for a power law fluid ?
I was able to find an approximation, or a modified Reynolds number but I would like to know whether the scientific community uses it in research and/ or industrial applications.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
4 answers
Extended Reality (XR) includes AR, VR etc.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
4 answers
Dead Sea of Jordan has its own novelty by prevailing as the only natural waterbody of earth with viability to float. Although there are several inland water bodies like Caspian Sea and Black Sea, what is the main reason for the unusual salinity of Dead Sea? Is the origin of Dead Sea - A scientific marvel or myth?
If the comprehensive answer is found, it would help the several branches of science.
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
6 answers
How can I calculate ANOVA table for the quadratic model by Python?
I want to calculathe a table like the one I uploaded in the image.
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
6 answers
The above of our two research articles are two of our important efforts on how to conserve the soil and use it for the enhancement of reforestation to mitigate climate change impacts such as Urban Heat Island, loss of endemic species, scarcity of water and greenhouse gas emissions which are the leading concerns in urban built environment. Our articles have addressed a way to achieve the sustainable development goals such as SDG6, SDG12 and SDG 13.
Soil resources are most critical prerequisites those need to be conserved, utilized and given back to the earth to enhance the sustainable existence of living organisms. Current technological trends are mostly focusing on mining the soil resources and fulfilling the human needs using anthropogenic activities. This trend needs to revisit, addressed the research gaps and more interests need to be shown by researchers and stakeholders to enhance the optimum usage of soil resources with minimal harmful effects to nature.
I request the researchers to provide your opinions in this regard. Thank you.
Relevant answer
Answer
Carbon sequestration is one big use of soil.
  • asked a question related to Engineering
Question
3 answers
I am an undergraduate student doing a thesis regarding slope stability analysis using PLAXIS 2D. My study area is at Kajang, Malaysia. I only assumed the phreatic water level because I don't have any borehole data. I have already done the model but I have questions regarding my model:
1. Is the water level that I have marked and assumed logical? (40 m above flat land)
2. What does the legend on the right represent, and is it the FOS? (The FOS that I obtained from the model is 1.780 as shown in the picture below)
3. Is the part that I have marked in the picture the critical slip surface (Picture 3)?
Thank you in advance for your help.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
3 answers
Good afternoon,
I have prepared an article that performs a literature review on the concept of Digital Twin. Since the doctoral program in which I am is a program based on the compendium of publications, it is necessary that all the articles that I do are published in a journal that appears in the latest list published by the Journal Citation Reports (SCI and / or SSCI) or SCOPUS. In addition, at least one of them must be in the first or second quartile of its category. Therefore, I would like to try to get this article published in one that is in the Q1 quartile, so that I can take this burden off my shoulders. For now I have found the following:
IEEE
  • IEEE Access: Telecommunications – Scie, Computer Science, Information Systems – Scie (Q1); Engineering, Electrical & Electronic – Scie (Q2).
ACM
  • ACM Computing Surveys: Computer Science, Theory & Methods – Scie (Q1).
Elsevier
  • Expert Systems with Applications: Operations Research & Management Science – Scie (Q1); Computer Science, Artificial Intelligence – Scie (Q1); Engineering, Electrical & Electronic – Scie (Q1).
  • Future Generation Computer Systems: Computer Science, Theory & Methods – Scie (Q1).
  • Engineering Applications Of Artificial Intelligence: Computer Science, Artificial Intelligence – Scie (Q1); Engineering, Electrical & Electronic – Scie (Q1); Engineering, Multidisciplinary – Scie (Q1); Automation & Control Systems – Scie (Q1).
  • Artificial Intelligence: Computer Science, Artificial Intelligence – Scie (Q1).
  • Journal of Computational Science: Computer Science, Interdisciplinary Applications – Scie (Q2); Computer Science, Theory & Methods – Scie (Q1).
  • Advances in Engineering Software: Computer Science, Interdisciplinary Applications – Scie (Q2); Computer Science, Software Engineering – Scie (Q1); Engineering, Multidisciplinary – Scie (Q1).
  • Decision Support Systems: Operations Research & Management Science – Scie (Q1); Computer Science, Artificial Intelligence – Scie (Q1); Computer Science, Information Systems – Scie (Q1).
  • Information and Software Technology: Computer Science, Software Engineering – Scie (Q1); Computer Science, Information Systems – Scie (Q2).
  • Journal of Industrial Information Integration: Computer Science, Interdisciplinary Applications – Scie (Q1); Engineering, Industrial – Scie (Q1).
  • Journal of Network and Computer Applications: Computer Science, Interdisciplinary Applications – Scie (Q1); Computer Science, Hardware & Architecture – Scie (Q1); Computer Science, Software Engineering – Scie (Q1).
MDPI
  • Applied Sciences: Chemistry, Multidisciplinary – Scie (Q3); Materials Science, Multidisciplinary – Scie (Q3); Physics, Applied – Scie (Q2); Engineering, Multidisciplinary – Scie (Q2).
  • Future Internet: Computer Science, Information Systems (Q2).
  • Applied System Innovation: Telecommunications – Esci (Q3); Computer Science, Information Systems – Esci (Q3); Engineering, Electrical & Electronic – Esci (Q3).
Does anyone have a recommendation for any other? Is it advisable to avoid generic journals? The more categories the journals deal with, the better?
Thank you very much in advance.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
5 answers
How to write formally within the context of mathematics that: "given two series S1 and S2 and they are subtracted each other coming from a proved identity that is true and the result of this subtraction is a known finite number (real number) (which is valid) the two series S1 and S2 are convergent necessarily because the difference could not be divergent as it would contradict the result of convergence? I need that definition within a pure mathematical scenario ( I am engineer).
" Given S1- S2 = c , if c is a finite and real number, and the expression S1-S2 = c comes from a valid deduction, then, S1 and S2 are both convergent as mandatory."
Best regards
Carlos
Relevant answer
Answer
Cite:
Mark Gritter
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.
  • asked a question related to Engineering
  • asked a question related to Engineering
Question
8 answers
Green roofs are becoming increasingly popular among researchers, engineers and related construction stakeholders to mitigate food crisis, Urban heat island effect, rainfall scarcity and enhancement of thermal comfort in urban ecosystems. Substrate is the most important component of a green roof. Our research team has carried out an extended systematic review regarding all the types of green roof research in the past 50 years and published a research article in Frontiers in Built Environment:
In your perspective, apart from the fields mentioned in our research article (link given above),
What are the scopes available within green roof substrates-related research for future studies? Are there any justifications for the choice?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
5 answers
I like to do my Ph.D in mechanical engineering. My first option is Deemed to be University in India. And the Deemed to be university is approved by the University grands commission.
But some people are telling, studying in Deemed to be university is not valid. And telling you are not able to get a job in foreign countties.
Please clarify my doubt.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
2 answers
Systems Engineering (SE), Digital Engineering (DE) and Mission Engineering (ME) are three distinct approaches to designing and developing complicated systems. We are just now seeing the three approaches starting to be employed simultaneously. They are mutually supportive and when used together, can dramatically shorten development schedules and shorten timelines. Intuitively, I believe 1+1=1+5. But I want to quantify the result. Are there any close parallels in other industries, where I can use an existing formula that takes into consideration how many areas of mutual support exist, how much time and money is saved by each engineering approach operating alone, etc. I have reviewed 20 years of research involving financial synergy in business mergers and acquisitions and the medical synergy of combining different drugs and the combined effects that can be achieved. But neither of these seems to be a close parallel to my engineering-triad challenge.
Has anyone studied this? If not, is there parallel research that I can draw from? I want to write a paper on this topic. Thanks, in advance.
Relevant answer
Answer
Could you please provide an example or two? Thanks.
  • asked a question related to Engineering
Question
3 answers
International Journal of Advanced Technology and Engineering Exploration (IJATEE) ISSN (Print):2394-5443, (Online):2394-7454 is scopus indexed JOURNAL
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
1 answer
I am having some project ideas. I like to convert into reserch proposal and apply for sponsored project.
Please tell me the way to apply for sponsored project like DST, DRDO sponsorship.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
7 answers
Lockdowns due to the COVID pandemic in last three years (2020-22) has played a significant role in the widespread of online based classrooms using applications like Zoom, MS teams, Webex and Google Meet. While substantial amount of the students were happy to complete their semester classes in due time without getting hampered by the lockdowns, thanks to the online based classrooms, there are also notable amount of students and parents who were complained regarding the online based classrooms that they have drastically distracted the academic performance of students.
Overall, I would like to leave it as an open-ended question. Dear researchers, what you think regarding the online based classroom? Is it an advantage for students or a disadvantage?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
7 answers
Hi! I‘m an industrial Engineering student ready to graduate. I only still have to write my final bachelor thesis which i would like to be about sustainability. Sustainability is a very important topic for everyone, especially for the industry.
Any topic or problem suggestions would be very helpful.
Thank you so much in advance.
Have great day!
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
3 answers
A project I'm working on has now been turned into a paper, but I'm not sure what the difference is between these two terms. Considering my college is also organizing an event, I'd love to present it there.
Relevant answer
Answer
In my opinion, it is dominated the bibliography in research paper meanwhile the data in the technical paper.
  • asked a question related to Engineering
Question
2 answers
hi all,
I need a low electron density alloy for a project. I am an electrical engineer, so I would be very grateful if someone with metallurgy background (or any relevant background) can help me to find a good material with this property.
Many thanks in advance
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
3 answers
I have been using the ARG2 rheometer and conducting an Oscillatory amplitude using citrated whole blood. But I have never been able to get an LVR. Has anyone tried doing this and successfully had an LVR?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
4 answers
Dear respected colleagues,
I am grateful for your kind support in the following matter.
I want to register as a Chartered Engineer (CEng) at (IMechE). However, my BACHELOR and MASTER degrees in Iraq, which most probably they are not accredited by IMechE and Engineering Council’s academic requirements for registration (UK). I am not sure about that.
I checked the following webpages from IMechE:
However, I have not received a clear picture regarding to the membership as a CEng at IMechE for a mechanical engineer whose education background (bachelor and master) from Iraqi universities.
My question is: anybody from Iraqi education background, Iranian, Syrian, East Asian or from any other country education background [that not accredited by IMechE and Engineering Council’s academic requirements for registration (UK)] EVER APPLIED FOR CEng membership at IMechE? and obtained membership at IMechE as a CEng?
I am very thankful if anybody experienced the similar situation and GOT MEMBERSHIP AT IMechE to share his/her experience here or email me at ((((((zhwan.dilshad@gmail.com))))))).
Thank you very much for your kind cooperation and great support.
Best Regards,
Zhwan
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
8 answers
When I try to perform the following calculation, Python gives the wrong answer.
2*(1.1-0.2)/(2-0.2)-1
I have attached a photo of the answer.
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
3 answers
What are the differences between shop drawings and builder works drawings, and what are the differences between them?
As their name clearly states; shop drawings are drawings produced by the shop; ie. as an example when a client buys an equipment for installation the shop produces drawings; called shop drawings; for the subcontractor to implement.
Builder works drawings; as their name implements also; are drawings produced by the builder or subcontractor who is responsible for executing works. Builders use builder work drawings on site.
The shop drawings; produced and used by the by contractor engineers based on design drawings; details are based on standard specifications and tender requirements. On the other hand builder works drawings are produced by the subcontractor based on shop drawings, and used by his engineers and builders, builder works drawings are based on the details of equipment the subcontractor is planning to install; and must with shop drawings details.
The consultant compares shop drawings with approved design drawings, and work on site with shop drawings for final approval.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
4 answers
Hello, researchers, Is the World Journal of Engineering and Technology a reputable journal?
Relevant answer
Answer
Thanks a lot!
  • asked a question related to Engineering
Question
9 answers
My graduation project is about LEED Buildings, so I want to know which software should I use? and which one is more used for Engineers who work in this field?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
7 answers
Dear all,
I have submitted my research article to Environment, Development and Sustainability (Springer) 3 weeks ago. It took five days for getting the "Editor assigned" status after my submission and still it remains as same for more than 2 weeks. The article has not yet been sent for review yet.
Could anybody suggest me that,
1) Is it a normal case of being in "Editor Assigned" status for more than 2 weeks?
2) how long it takes in Springer journals for an article to be sent for review?
I would like to welcome your responses.
Relevant answer
Answer
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…!
  • asked a question related to Engineering
Question
4 answers
I am now a technical engineer of a company. I am interested in image processing and signal processing. When I read literature in my spare time, sometimes I cannot understand the methods or formulas used in the literature. What methods can I use to solve my problem?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
16 answers
In recent years, there has been development of some innovative construction technologies that are changing the way we build. There are many new technologies that will have a significant impact on the future of the construction industry.
Today, construction companies are able to complete projects more quickly and efficiently than ever before. There are new technologies in demand for the future that will help with accuracy, sustainability and faster construction.
Based on your point of view, what are the types of construction that can be used in future?
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
6 answers
I would like to know if "IOP Conference Series: Materials Science and Engineering" is indexed in Scopus database or not ?
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
30 answers
Dear all
Hope you are doing well!
What are the best books in Materials Science and Engineering (Basics and Advanced)? Moreover, what are the best skills (or materials topic related) that materials scientists have to develop and to acquire?
Thanks in advance
^_^
Relevant answer
Answer
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).
  • asked a question related to Engineering
Question
3 answers
Explorative research
Relevant answer
Answer
thank you for your idea
  • asked a question related to Engineering
Question
3 answers
Is there an index that includes the mixing index and pressure drop for micromixers?
For example, for heat exchangers and heat sinks, there is an index that includes heat transfer performance and hydraulic performance, which is presented below:
η=(Nu/Nub)/(f/fb)1/3
The purpose of these indexes is to create a general criterion to check the devices' overall performance and investigate the parameters' impact.
Is there an index that includes mixing performance and hydraulic performance for micromixers?
Relevant answer
Answer
Dear
Rani P Ramachandran
Thank you for your answer. I think mixing energy cost (MEC) is the index that I look for it.
  • asked a question related to Engineering
Question
10 answers
Please Suggest any Unpaid Scopus indexed Journals for Fast track publication ( in 2 Months) for Computer Science and Engineering related areas
Relevant answer
Answer
Please Suggest any Scopus indexed Journals for Fast track publication ( in 2 Months) for Early Childhood Education.
  • asked a question related to Engineering
Question
7 answers
I've been searching for them on NIST and Engineering toolbox and every other type of site, but I can't seem to find them anywhere...
Relevant answer
  • asked a question related to Engineering
Question
7 answers
Hello experts, Seniors, and fellows, kindly help me on this.
Relevant answer
Thank you Kevin Agina Onyango for the interesting question and all professors for the valuable answers.
  • asked a question related to Engineering
Question
9 answers
USA lose trillions of treated drinking water annually (ASCE, 2017) and similar problems are highly observed in many urban water supply systems as well. In case of water distribution system there are several methodologies to find leakages such as using SONAR, sensors and UV rays. However, what would be the best alternative method in your suggestions to find the leakages quickly and effectively?
Relevant answer
Answer
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:
  • asked a question related to Engineering
Question
6 answers
My paper was accepted for a paper presentation under this conference:
International Conference on Law and Political Science(ICLPS)
Date: 18th - 19th November, 2019
Venue of Meeting Presentation: Embassy Suites Los Angeles- International Airport South
Address: 1440 East Imperial Avenue, El Segundo, CA 90245, United States of America
This conference was managed by International Institute of Engineers and RESEARCHERS (IIER) with website address
IS THIS A LEGITIMATE?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
3 answers
Finding the seismic pressure is an important parameter to quantify the damages on structures during large earthquakes. Since soil force equilibrium in wedge approach can be used in site conditions there are no finite methods for laboratory experiments to study the seismic earth pressure behavior. A simple demonstration in this research area would help many students to understand its basic concept with good insight.
Relevant answer
  • asked a question related to Engineering
Question
3 answers
Hello everyone!
I‘m currently a master student and studying Software Design and Engineering and looking for master thesis topics in the field of Microservices. I‘m not sure actually about the current topics for research in this domain and I need your help.
thanks!
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
11 answers
Hi
I'm solving nonlinear second order equation by using finite difference method . finally for calculating value at any desired node, knowing three preceding nodes is required however by knowing boundary condition just one of these nodes becomes obvious and still knowing two other values is necessary. it must be noted there are plenty of guesses for values of these nodes which lead to compatible response.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
10 answers
In a discussion, with an acquaintance, we found out that research is highest form of learning _
Important notes from the discussion are as follows :
Teaching :
- Manner in which a teacher (speaker) passes ( visual, textual, audio-Video, experimental demonstration etc.) on the information to the target audience.
Effective teaching is expressing the information based on the target audience, and not the teachers.
Training :
Manner in which a person is accustomed (trained) to given set of skills and it's practice (application) , does not matter, who is the individual.
Research :
Manner in which we teach ourselves the available information, train ourselves to identify the flaws in proper understanding of information, present the possible solution ( experimental, mathematical etc.) , based on our skillset.
Do you agree?
Relevant answer
Answer
Teaching was the past, coaching and training are the future, and now is a transition! In my humble opinion,
Best Regards.
  • asked a question related to Engineering
Question
5 answers
How can I import 2D sketches from CATIA into COMSOL Multiphysics?
The formats that COMSOL reads in 2D geometry are not available in CATIA.
Relevant answer
Answer
You can import your 2D model from CATIA software into AutoCAD software and write output DXF.
Good luck!
  • asked a question related to Engineering
Question
1 answer
I am looking for a lecturer job for engineering college in India. Since there are millions of websites available on Google, most of them look like false advertisements or outdated ones. Here is my question: can some one please suggest me which website is more genuine based on your experience for finding lecturer jobs in India?
Relevant answer
Answer
Times Ascent, you can get latest updates on the related jobs in your region.
Employment News
  • asked a question related to Engineering
Question
8 answers
To whom it may concern...
Case shown in pictures below need to stop in front of it...
What the mean of overload... What will be the meaning of calculated loading before design... and.... What really mean the structural design based on submitted data..
All, in general,.. knows that.. design start with converting functional use of the building to loading on structural element... then start design element by element ...
So, what might be the supposed loading to one story house... based on all adopted code... ? this is the first question..
Then what you think, .. or what the supervisor engineer might think the value of such loading on that slab shown in pictures attached... ? this is the second question...
Then at last... whom responsibility is that... if failure occur...? where that will be the most important question....
Limited education with low experiences causes such cases, ... or... we need to ask the supervised engineer if he care...
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
4 answers
Not a mechanical engineer, but my understanding is that:
- the damping coefficient is defined by damping force divided by velocity.
- the mechanical impedance is defined by force divided by velocity.
What am I missing?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
2 answers
Question-4: How mature are our computing platforms and programming languages for enabling autonomous software generation mostly at run-time?
Relevant answer
Answer
  • asked a question related to Engineering
Question
2 answers
Question-7: Are our mathematical means ready for rigorously expressing software system requirements? Is our computer’s inference power adequate for expressing real-time inexhaustive, indeterministic, and uncertain behaviors in SSE?
Relevant answer
  • asked a question related to Engineering
Question
3 answers
Hi everyone,
What do you think are the most important problems in computer science and computer engineering which if it will be solved would make a huge impact on technology?
what is it in your mind?
don't think that your idea might be stupid or not practical, just leave the message here, may be it help scientists and researchers to solve worlds problems and make our world a better place for everyone to live.
Best regards,
Yasin
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
7 answers
I am chemical engineer working on the synthesis of two compounds (carbon compound along with polymer). What are the technologies/methods/ways on discovering or identifying the exact mixture that been synthesized?
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
3 answers
Dears,
The following questionnaire is a part of my Ph.D. Thesis Degree in Civil Engineering and Construction from University of Bolton, UK.
You are kindly requested to reply to the following questions with a level of accuracy. Thanks a lot for your highly appreciated support. Furthermore, please share the questionnaire with your communities.
Sincerely Ashraf Ibrahim Nasr Elhendawi
Relevant answer
Answer
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 .
  • asked a question related to Engineering
Question
7 answers
An intelligent planning of rooms based on Passive Solar design could effectively mitigate energy consumption and also promort the comfort. Anyways, what are the different methods used in the construction industry to implement passive solar design in rooms? Any scientific theories? Any case studies?
I would like to receive feedbacks from fellow researchers.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
4 answers
Weather forecast has utmost importance in Aviation, Ship routing, safety measures, planning and designing of structures, urban areas, offshore maintenance, natural resources, coastal areas, Agriculture, pollutants management and in many more weather applications in world wide.
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
4 answers
As well known
In almost all papers the experimental section is so short and not detailed for instance no clear weights setup and so on
Where can we find expanded detailed narration of experiments and methods
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
5 answers
The acceptable industry standards for water pressure is 140 kPa - 560 kPa. Domestic appliances operate under the intermediate pressure magnitudes. Topographic features and the increase of customer density cause deviations in water pressure throughout the supply system. In some cases, some water supply networks provide water in exaggerated high pressure to reach some customers in high altitude. This higher pressure accelerates the volume of water running out through unobserved leakages in supply system which results on microbursts of water pressure that may cause large scale failure and demands higher maintenance cost for water supply providers.
Dear researchers, what is your recommended solution to prevent these unnecessary pressure rise against transient scenarios?
Relevant answer
Answer
sometimes having a small pumping station for the high lat customers is beneficial.
  • asked a question related to Engineering
Question
4 answers
I am finding difficulties while publishing one of my manuscript related to Maintenance Engineering. I worked very hard through out entire Year on this, and I believe that this manuscript will be very helpful and informative to any readers belong to Maintenance Engineering domain. I have submitted this in to renowned Journals but it's not been accepted. I have also updated the information as per reviewer's, However I am not satisfied with their comments.
What should I do? Please advise me.
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
5 answers
There is nothing worse for curb appearance than chipped and cracked concrete, particularly in steps. But you don’t have to put up with that blight any longer. By the result of weather changes exerted on an existing construction for prolonged time, it causes contraction and expansion those gradually results concrete steps cracks and break up with time.
Dear researchers, I would like to get expert opinions on how to fix this issue with,
optimum efficiency
low cost
prolonged sustainability .
Your answers are highly welcomed.
Relevant answer
Answer
En mi pais, hay material especial para tratar estos casos y otros mas; por ejemplo selladores, alquitranes, y otros.
  • asked a question related to Engineering
Question
1 answer
Question-9: How may a nondeterministic intelligent programming language be created in order to enable run-time intelligent behavior generation for handling indeterministic events and autonomous decision-making requirements in SSE?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
6 answers
You only relate Architecture to Engineering or Computer. I work with Architectural History and Architectural Design and neither are contemplated in your "Disciplines" field. There is a great number of people working in these areas. If you don't have subjects like these, it's difficult to use your services as a place for grouping information.
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
2 answers
Question-6: Are our programming languages sufficiently expressive for designing intelligent software? What would happen to a software system if an expected ‘if-then-else’ structures were indeterminable at design-time or exhausted at run-time?
Relevant answer
Answer
"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 :(
  • asked a question related to Engineering
Question
3 answers
Question-8: How may an intelligent software system be trusted and verified when its state space is infinitive in de facto, such as those of self-driving vehicles and mission-critical robots?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
7 answers
Question-2: Why have AI technologies been approached by data-driven neural networks rather than program-driven software engineering?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
35 answers
Human dynasty in its millennium era. We have identified fire from the friction of stones and now we are interacting with Nano robots. Once it was a dream to fly but today all the Premier league, La liga and Serie A players travel in airplane at least twice in a week due to the unprecedented growth of human science. BUT ONE THING IS STILL ELUDING IN THE GLITTERING PROFILE OF HUMAN DYNASTY.
Although we have the gravitation theory, Maxwell's theory of electromagnetism, Max Planck's Quantum mechanics, Einstein's relativity theory and in most recently the Stephen Hawking's Big bang concepts...… Why can't we still revert back and forth into our life?
Any possibilities in future?
if not..
Why? in terms of mathematics, physics and theology??
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
9 answers
Thermal mass is a property of construction materials to absorb, store, and release heat energy. It is an important element of passive solar house design and can be utilized for passive solar heating, passive solar cooling, or both. I would like to know, what is the most effective technique to quantify these kinds of thermal masses in an existing construction?
Relevant answer
Answer
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.
  • asked a question related to Engineering
Question
3 answers
Any Thesis idea for MS Project Management? .. I am now working as a structural engineer but I hope to shift to project control. what kind of thesis may be as an intro to my new career. NB I have graduated 1 year ago.
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
8 answers
I just completing my undergraduate degree in engineering and I want to be an independent scientist without joining any organisation or institute. I want to know, how to do research work and be an independent scientist and
how to open own engineering research lab and earn money.
Relevant answer
Answer
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).
  • asked a question related to Engineering
Question
18 answers
If your answer is no; yes it is by thermal energy
Relevant answer
Answer
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
  • asked a question related to Engineering
Question
15 answers
Picture attached shows the case of complete reinforcement of raft foundation, but after sand storm, as appear, more than 20mm layer form from sand under the reinforcement.... on your opinion, what might do to continue with work...?
Relevant answer
Answer
excellent quesion
  • asked a question related to Engineering
Question
4 answers
Thank you to everyone who took the time to give an opinion on my PhD research. In this study, your professional advice is much appreciated. There are (5) FIVE parts in this questionnaire that need around 20-30 minutes of your time to complete.
Relevant answer
Answer
Done
  • asked a question related to Engineering
Question
7 answers
Dear researchers,
I am working on Mg composites fabricated by powder metallurgy. I have investigated the wear behavior of Mg-based composites with variation in temperature. I observed that wear rate increased with an increase in the wear temperature. Can anyone explain me in detail, why is it happening? What is the mechanism? I am looking for your responses.
Thank you so much.
Relevant answer
Answer
Thank you, sir. But I don't understand your language.
  • asked a question related to Engineering
Question
28 answers
Q. : Students asked me that "we only study about different forms of energy, one form of energy getting converted to another forms of energy. But no one knows what is energy."
Ans: No answer
Q. Sir Why do we have to call something by the name that a scientists used long back, can't we change it.
Ans: Science or engineering is field of perspective, how one looks at something matters. But everything that you read in a book can be changed. If you wish you can express it in a different manner.
It is the terminology, that we learn, in which people who observed certain phenomenon used to explain a particular concept we follow. Learn. To make world understand what you have to say you have to first make them ready to understand. Otherwise no one would know.
Relevant answer
Answer
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......
  • asked a question related to Engineering
Question
2 answers
Dear Colleagues,
Please, I need the doc template for Alexandria Engineering Journal.
I require it directly to download.
I appreciate any help you can provide.
Relevant answer
Answer
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,
  • asked a question related to Engineering
Question
13 answers
I have a simulation code for a Horizontal Washing Machine.
The code solves the equations of motions of the system by Matlab ode45 and plots the vibration response of the system at the transient state of performance.
In this code, the frequency (omega) is an exponential function of time, as it's stated below (and its diagram is attached to 'the question'):
-------------------------------------------------------------------------------------------------------------------------------------------------------
omega= (1-exp((-0.5)*t))*omega_0+(1-exp((-0.5)*heaviside(t-t1).*(t-t1)))*(omega_1-omega_0);
-------------------------------------------------------------------------------------------------------------------------------------------------------
ode command:
-----------------------------------------------------------------------------
[T,Y]=ode45(@snowa1,tspan1,initial_vector1);
plot(T,Y(:,1)-mean(Y(:,1)))
-----------------------------------------------------------------------------
The resulting displacement response is attached to the question.
It is desired to :
First, increase the frequency to omega_0 by exponential1
Then, increase it to omega_1 by exponential2
But 'the problem' is that:
the displacement response shows an unexpected increase in frequency at the beginning of the second exponential increase (it becomes 20 Hz, which is much larger than the maximum frequency in the simulation- 10 Hz).