Performance Analysis - Science topic

I am currently studying index modulation aided NOMA technique but my mind blown up with mathematical expressions. Can someone explain to me these;

My reference study paper: Performance Analysis of Uplink Index-Modulated NOMA for 6G Wireless Communications

Y. -K. Bae, J. S. Yeom and B. C. Jung, "Performance Analysis of Uplink Index-Modulated NOMA for 6G Wireless Communications," in IEEE Wireless Communications Letters, vol. 12, no. 8, pp. 1404-1408, Aug. 2023, doi: 10.1109/LWC.2023.3275944.

Good morning to everyone,

I have a problem with high value of RMSEA in MGCFA with categorical variables with the WLSMV estimation method in Mplus.

I test a model consist of 4 variables on 4-point scale. I compare 28 countries.

Results of testing configural invariance are:

Chi-square: 1884.026

Degrees of Freedom: 57

P-Value: 0.000

RMSEA: 0.130

90 Percent C.I. : 0.125 - 0.135

Probability RMSEA <=.05: 0.000

CFI: 0.991

TLI: 0.972

If I do the same analysis but I set variables as continuous, so results are good (RMSEA 0,08; CFI 0,980; TLI 0,939).

Can anyone please thoroughly suggest me how to overcome this problem of the inadequate (poor) value of RMSEA? 

Thank you very much.

Hello Sir/Ma'am, I have been modelling a brick wall using detailed micro modelling approach using Abaqus with the reference of paper published by Antonio Maria D' Altri on topic " A 3D Detailed Micro-Modelling Approach for the In-Plane and Out-Of-Plane Analysis of Masonry Structures". While performing analysis in abaqus, I am getting this error " COHESIVE CONTACT RESPOSE IS COMPUTED AT SLAVE NODE 13 INSTANCE Mortar East-1-lin-1-9 THAT FELL OFF THE MASTER SIDE USING A SEPARATION OF 1.00000E+36.". Please help me regarding this.

describe in detail

I have attached my CAE file I am a beginner with ABAQUS and trying to do cyclic analysis but not getting RF Graph to make an Hestrisis Diagram. and also don't know how to perform Analysis

Note You can check Job 8 to check the results

Dear sir/madam

I have an evolved gas sample obtained from combustion of Sodium Azide and Potassium Nitrate(NaN3 + KNO3). I want to analyze the evolved gas. What are methods to perform the analysis? Evolved gas would mainly contain nitrogen.

i think this would be the reaction

2NaN3 ---> 2Na + 3N2

10 Na + 2KNO3 ->K2O + 5Na₂O + N2

please help me

Hello Academicians,

I am a Ph.D. student in University of Washington and I am conducting research on the critical risk factors in construction supply chain coordination. My research methodology is quantitative through Importance and Performance analysis. It would be appreciated if you could take some time to answer the survey below.

Thank you,

Aishwarya

Dear all,

I am performing analysis of 16S rRNA amplicon sequencing data. I have tested effectivity of two classifiers on the mock community and blast classifier shows the best result. However, I found out blast is using a local sequencing alignment. So I do not know if it is appropriate to use this classifier to assign a "mystery" sequence to a bacterial taxon. Is it possible that this approach will result to false positive results? Is it better to use Vsearch classifier which showed worse results but is using a global sequencing alignment?

And a bonus question. Should I use rarefied representative sequences to perform a taxonomy classification or not? I use rarefied data for alpha diversity testing (and for beta diversity testing I do not).

Thank you all for answers!

Martin

Currently I am working on Performance analysis of savonius Turbine.For which I am using dynamic mesh method in ansys fluent.I have done simulations for free air velocity ranging from 3-9 m/sec, and found out the moment coefficient, RPM of the rotor,

The problem I am facing with the analysis are as follows -

Can anybody give feedback why I am getting such results and what I did wrong in my analysis.

1. in the incremental dynamic analysis the time history of different region should be observed or  same region from different position should be taken?

2. What is scale factor to be taken, is there any relation?

I am looking for transmittance, reflectance and absorptance data in the range 300 to 2500 nm and transmittance, reflectance and emmitance data in the range 2,5 to 50 µm for transparent PE, PVC, PET, THV and ETFE foils. I could only find some data for ETFE and PE foils. I cannot believe that there is no data on the internet for such popular materials. I am defenitely doing something wrong... There is a huge database and a lot of information for glass in the ASHRAE Handbook of fundamentals, but nothing for polymers

In case someone needs the same information, the sources the I have found are

Hi folks!

I have some questions regarding EBSP analysis and panmixia. I hope someone can help me, please deal with this.

1 – Is it ok to include EBSP analysis in a paper if we violate panmixia? I read papers demonstrating the issues of performing EBSP analysis with structured populations, especially if they are declining in size. But, at least for neotropical trees, it is really difficult to not find a degree of structure in populations. So, is it fair to use the analysis even though with the violation and then report to interpret it with caution? I started to overthink… If coalescence assumes a Wright-Fisher population, thus even performing analysis in BEAST, such as estimating the dated tree could be wrong for some kind of data. Does it make sense?

All the best!

I working on a PV system project,I would love to know what Cooling technique would be the best option in boosting the efficiency and output power of the PV cell?

I want to use power-pc architecture for various performance analysis. As Gem5 doesn't contain the power-pc architecture can I design and integrate the architecture in GEM5 library?

If yes is there any documentation available for the reference to add the architecture?

I have a fairly simple question:

Is it better to consistently use tissue from a single hemisphere for one type of analysis? For example, if you are doing both immunostaining and RNAscope, should you only use right hemisphere for immunostaining and left for RNAscope? Or is it better to collect mixed hemisphere tissue for both techniques?

I guess ultimately, is there any hemisphere lateralization that should be considered for performing analysis of tissue? If there is any hemisphere bias is it severe?

Thank you!

i am working on performance analysis of digital modulation schemes ( DPSK, OQPSK, PSK and QAM ) on radio over fiber communication system using optisystem. i have tried to setup the simulation but i discovered the demodulators of the schemes were not released with the 30days evaluation version . please help. what other software can i use.?

Hello Researcher, If we have ensemble model which apply different Association mining algorithms such as Apriori, Terius and Clustering Algorithms such as K-Means, Cobweb on same dataset, I want to analyse which algorithm is better among all. Is there any automated simple way to compare the performance of above Association mining and Clustering algorithms based on accuracy , time etc in Weka tool?

I am working on a model, having one Independent variable, one dependent variable, one mediator, and one moderator. In order to reduce CMV, I want to collect data from Two different sources, i.e. data for the Independent variable is to be collected from the managers and the remaining variables are to be collected from subordinates.

I am confused about how to match the data collected from two different sources together?

and how to perform analysis for mediation and moderation?

like there will be lesser managers as compared to the subordinates, how to connect the two data?

Hello Researchers, I am looking for large data set for IT system logs such as System, Application or Database etc (like https://github.com/logpai/loghub) to perform analysis on IT operations. Please suggest.

While reading the literature regarding performance analysis of RIS-Assisted Wireless communication Systems I went through the following terms: Achievable Rate, Sum Rate, Ergodic capacity. How do understand them?

I performed analysis of my proteomics data in MaxQuant to compare phosphor peptides difference in two sample groups with LFQ intensity. However, error always occur when doing LFQ normalization, and the report show Index was outside the bounds of the array. How to understand the problem and what I should check?

Plz suggest me how I make simulink model for this inverted pendulum..because I am not finding any reference regarding model of inverted pendulum..plz guide me..

Also what should be the ideal conditions of engine performance in regards to its output and emission analysis?

While going through the Literature I found that the performance analysis of wireless communication System was done by us one of the following three methods:

1. Moment Generating Function-Based performance Analysis

2. PDF Based performance Analysis

3. Characteristic Function-Based performance Analysis

For the analysis of the aircraft compressor, I require the design data of the aircraft such as blade angles, air foil and stage parameters but I am unable to find any of it. Can someone guide me in this regard?

Dear All,

Could anyone help me with 3D analysis in software ICY? I cannot render all cells which are in my z stack in 2 channels, it shows only part of blue channel, but green one, in which cells of interest are, is not able to be fully rendered from tiff z stack. Could anyone guide me, how to perform full render in 3D and perform analysis?

Dear All.

I hope you are doing well, I have a problem handling this blade geometry, I am trying to perform analysis on this blade but I could not use the APDL, it shutdown when I start meshing directly, so I tried to export it via IGES so I can use the workbench but unfortunately the geometry is not complete as shown in the picture. I found many problem reconstructing it since a lot of details are missed and I am not the owner of the original design.

Is there any solution?!!!

I am trying to build a Markov model for analyzing 802.15.4 network. The model is derived from paper "Performance analysis of a non-beacon enabled IEEE 802.15.4 network with retransmission and ACK mode", which can be accessed from arXiv. specifically, I am working on the Model 2 in that paper.

The question is: the formula of that model is a highly nonlinear system. In MATLAB, the "fsolve" function cannot tackle with such a complex question, and the answer will either be wrong(different from the paper's) or unconvergent. In MAPLE, the answer is wrong as well. I attached two source code in MATLAB and MAPLE. I am looking for a new technique to solve the formula, either can be in MATLAB or MAPLE. I tried using phclab, but it cannot take the input as a function.

I am carrying out research on MCF - MDM based optical transmission line performance analysis

Kindly suggest any libraries/Books/platforms/tutorials for the same.

Hi All,

I'm trying to perform intensity analysis on videos in imageJ. The final goal is to obtain the line intensities acquired from 'plot profile' over the entire say 100 frames of the video. I cannot use the time analysis plugin because it only allows to perform such analysis in ROIs generating averaged intensity over a selected area...

Thanks

To achieve the final objective of my Ph.D. work, which is to design hybrid models for disease prediction on health datasets (such as the Statlog or Cleveland Heart datasets), I need to analyze various data mining and machine learning algorithms. I am confused about which algorithms to choose and on what basis, and I plan to conduct a theoretical study before implementing and performing the analysis on tools such as WEKA or MATLAB. Any suggestions on this topic are welcome, and please provide any relevant links to related work if possible. Thank you.

Hello, everyone 

Seeking some clarification regarding model fit through SPSS AMOS. 

While performing an analysis for a variable with 5 items (each positively coded). It has been obtained that the values of factor loading as well as model fit except RMSEA are found to be good. The details are as follows:

N=361

Factor Loading Index

I1<--V=.81 (p<0.05 for all)

I2<--V=.89

I3<--V=0.80

I4<--V=0.82

I5<--V=0.76

Model Fit Index

CMIN/DF=5.64

RMR=0.26

NFI=0.98

RFI=0.95

TLI=0.96

CFI=0.98

RMSEA=0.133

Can anyone please thoroughly suggest me how to overcome this problem of the inadequate (poor) value of RMSEA? 

I have mitochondrial DNA sequences to perform analysis of the genetic diversity and population structure of a fish species. What packages can I use on R? I estimate that I need to generate haplotype networks, PCA and diversity indexes.I thank you in advance for your contribution.

Performance analysis in blockchain environments integrated with web and mobile applications, only blockchain, etc.

Which metrics can be used?

Related articles are welcome!

When I launch the analysis "compute posterior probabilities of scenarios", it crashes at 14% and an error message appears.

It appears that the problem is with my scenarii because the analysis "Estimation of posterior distributions of parameters" estimate just two parameters of the first scenario meanwhile there is five scenario with other parameters.

When I perform this analysis, scenario by scenario, it estimate correctly all the parameters. But in this way, I can't compare my scenarii...

Can somebody help me ?

Thanks !

We aimed to perform analysis using ANN using 15 various parameters. Now we want to get importance of each parameter as output for further analysis but unable to do so.

Need help and kind suggestion in this regard.

Thanks in advance.

I am currently doing a testing using biodiesel emulsion fuel on a diesel engine. What is the latest software to do combustion, emission and performance analysis?

Hello all

I need some suggestions in analysis of RT-PCR data. My problem is described as:

“I want to do the differential gene expression analysis using Real time-PCR analysis. I have run RT-PCR and obtained CT (cycle time) values for my gene of interest and for endogenous gene (GAPDH). I have done it for four cell lines, (one control and 3 cancer cell lines) for both GAPDH and my gene of interest. The experiment was repeated 3 times, i.e. 3 biological replicates and for each biological replicate there is 3 technical replicates. So, total there are 9 values for each gene and GAPDH for each of 4 cell lines. I have calculated delta-CT (CT(gene of interest- CT(endogenous gene)) values for each of them. Using delta-CT, I have also calculated relative expression (power(2,-dCT)) values. Now my queries are:

1. Which type of statistical test should I perform to analyze the results? (one way ANOVA, t-test or any other)?

2. Should I perform statistical test using dCT values or relative expression values?

3. Should I average 3 technical repeats values from each biological replicate and then perform the analysis (i.e on 3 values) or should I perform analysis using all 9 values without averaging?”

I would be highly thankful to you for your valuable suggestions and guidelines

Firm operation performance analysis using data envelopment analysis and balanced scorecard: A case study of a credit cooperative bank

I am using fsQCA software to perform the analysis. Could somebody elaborate the steps to calibrate a 7-point Likert scale? Say my target variable name is PE. and I have selected

calibrate(x,n1,n2,n3) function. Could you please explain what arguments would come in the function?

Dear all,

could you please suggest some hot/ topics in reliability engineering or in multi-state system performance analysis .

What is the best way to measure the performance of classifiers when multi-class data is under consideration? I've already practiced some in my research works. For example, I've used macro-average and micro-average ROC curve analysis for multi-class balanced and imbalanced data respectively. The confusion matrix display is another simple way to showcase the performance. However, it can be messy sometimes. For example, in one research we had 109 classes, thus, a confusion matrix of size 109*109 which is huge! I've also considered finding out class-wise performance (precision, recall, specificity, false-positive rate, f-score etc.) and then calculating the average or weighted average value for these parameters. Are these methods enough to measure the performance of a classifier for multi-class data? Or there are some more capable ways to measure the performance?

Currently I am working on my undergraduate thesis on D2D mobility management system in 5G cellular system. I need to do performance analysis for my methodology. So I need a suggestion that which simulator software would be better for simulate D2D mobility?

I performed a simulation with Protein-Protein Dimer and a small molecules ligand successfully by GROMACS. But now I want to perform the Analysis of the simulation such as, RMSD, RMSF gyration etc. But the thing is that the protein is dimer, So can you give some tutorial where dimer and ligand complex simulation is there?

I am trying to perform a particle simulation through the human lung bifurcation geometry. I have created a idealistic geometry for three bifurcations and then I am trying to perform analysis in Openfoam using DPMFOAM because it involves Multiphase fluid particles as a Lagrangian and air as continous phase and trying to simulate the flow of the particle behaviour with a particle size of 0.0001 - 0.01 microns. The case is only a Laminar case , but the DPMFOAM by default has a PISO solver So can I change it to SIMPLE and one other big problem is that I have to incorporate two conditions i.e, one is inhalation where inlet is given from one inlet and outlet is obtained from eight outlets and after 2 seconds of the inhalation is done the same outlets has to act as inlets and flow has to come back but the particles will be carried away forward but only air is obtained back. So how can I perform this type of analysis using DPMFOAM. Please help me with this problem. The geometry is attached below?

I want to perform contact analysis of a plate subjected to deformation under an applied voltage. Kindly suggest me the element types to be employed and the procedure for performing analysis in ANSYS APDL environment.

Thanks.

Hi,

I would like to know if any of ladies and gentlemen happen to know of any simulation software like ns3 with OFDMA implemented for 802.11ax apart form cisco's one.

I read that some people simulated OFDMA in ns3 by using parallel transmit and receive chains for each client in this beautifully written paper "Performance Analysis of Uplink Multi-User OFDMA in IEEE 802.11ax" by G. Naik, S. Bhattarai and J. Park.

I have tried to integrate mat-labs WLAN toolbox to ns3 but couldn't create parallel transmit and receive chains

It would be very generous of you guys if you can share some of your ideas on how it could be achieved.

Hello, I am doing a sustainable tourism development analysis in visitors' perspectives. I need to determine the number of sample size for both pilot test and the actual surveys. There are of 34 items that needed to be rated by the visitors in 7 point likert scale. Do you know which study I can refer to in determining the number of sample size for this research? I am going to use Importance-Performance Analysis for this research. Thank you and very much appreciated.

I am starting on a few base cases here with mapping the resultant solar intensity on a surface covered by a horizontal cover (made up of a certain material). The other base case involves a sinusoidal wave-shaped cover over a horizontal surface. I need some simulation tool options that will allow me to perform such an analysis in a dynamic setting ( location-specific, real-time positioning of the sun, etc.). The ultimate objective is to replace the underneath surface with a PV module and in turn calculate the energy yield for the corresponding incident solar light intensity. The study is to determine the influence of the covers ( shape, size, design, material, distance) on the energy yield of the PV modules underneath.

Hi,

I did a RCT-4 arms, so I have 4 different groups supplemented with different doses of a specific dietary treatment (including the Placebo).

I would like to see the dose-response relationship with e.g. blood pressure that is adjusted for baseline data. I know how to perform the analysis on SPSS on adjusted data, and its simply from contrast and choose polynomial. However, I don't how to plot it on SPSS, how can I use the adjusted data to do the plot?? Please advice if you have an idea.

I am using SPSS 24

Thanks

We want to determine if there are statistical differences in the structure of the microbial communities of a lake. For this, samples were taken, monthly, for 10 years, from two depths and considering two fractions (particle associated and free-living). In this way, we have a Species-Sites table where in the columns we have the OTUs and in the rows, for each date, the depth-fraction combinations. Normaly we perform the statistical analysis using the function adonis of package Vegan (Permanova). However, we would like to know if it is correct to assume that each one of the dates as repetitions? Is there any other test e.g. mixed model or LASSO that can determine significance in the differences between depths or fractions considering the time series? Any suggestion on how to perform this analysis will be appreciated.

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I'm going to analyze and compare the fund performance but most of the fund in my study (8 from 20) are newly registered and have only 1.5 year's data. I intend to use monthly data and my study period is 5 years. I'm wondering if:

1. Is the sample enough? and how to know that it is enough?

2. Should I change the monthly data to weekly data? or should I omit these funds and use only the old funds?

3. If I change the data frequency as said in (2.), will it has effects in my study? Do I need to test for the correlation or other things?

Thank you in advance for your kind help!

I did an analysis in fluent for a flow over vanes with a constant inlet boundary condition (Mass flowrate). With this, I got positive lift, drag and moment. Thereafter, I perform the analysis again using profile as the inlet boundary condition to depict exactly what is happening in the system but this time I got positive lift and drag and a negative moment at zero degree deflection angle but from one degree deflection angle and above, I got negative lift and the rest positive. Trying to understand what is happening, I performed the analysis again using negative angle (example; -1 = 359, -2 = 358..... degrees) and I got positive lift and a negative moment.

Please, can someone tell me what could be the problem and how to fix it.

I am expecting increase in lift with increase in deflection angles.

I worked with secondary data which covered a macro scope (a country) and i would like to do a regression to see which parameters that most affect the independent variable, in this case there are proximately 20 parameters. the paramaters are aggregated in

1. individual context (proximate determinant),

2. households context, and

3. region context.

Which paramaters contains nominal, rasio, and ordinal data.

i'd perform analysis that geografically based (like the Geografically Weighted Regression) but with the aggregation that i made and the type of data that also diverse, what will be the best analysis that i could do?

I have two separate groups which are asked under different conditions to sort a list of items in terms of preference(building a hierarchy). The total number of items is 5 and the data is categorical(nominal).I want to do a comparative analysis between the two hierarchies and measure how significantly they differ form each other. What analysis should i use?

Good evening

I have a problem on my hands.

I need to regress the following:

I have 5 separate groups of panel data with one reference group.

Each group tracks the same variables of individual company's over 5 years.

These companies are sorted according to industry.

My question:

How do I match and regress the observations according to industry from the other four groups with the reference group ?

In this case i am comparing the levels of business success of belgian entrepreneurs with neighboring country immigrant entrepreneurs, immigrant entrepreneurs from further than neighboring countries , immigrant entrepreneurs in a team with belgians and immigrants in teams with other immigrants.

Each needs to be matched according to industry to ensure that we are comparing apples with apples.

Please help, which model should I use and how should I perform the analysis ?

Hi,

Given a set of RNA-Seq and matching Exome-Seq data, how can I analyze the allele specific expression imbalance from it? Are there any pipelines out there for performing the analysis?

Thanks,

Hello all,

I am preparing a report on NREL 5MW reference wind turbine performance (thrust and power) using BEMT in MATLAB. since I am not very much familiar with MATLAB coding. hereby I want to ask if someone have a working code from his/her previous projects, it would be great to share it with me. Thank you in advance. Merci

Dear All,

I want to perform electrostatic analysis and wanted to compute capacitances using the CMATRIX command at any required distance. Anyone here who can help me to perform the analysis.

Thanks

How performance of the Big data can be analysis, which framework should used ?

Is Hadoop and Spark Framework are good or other tool should use , is any Source for code or algorithm can find?

I need a MATLAB code for 3D sparse representation to perform the analysis of low-frequency sub-band images.

I am currently working on the effects of rock boulders upon a structure and I would like to simulate the dynamic impact force using Plaxis 2D. Since the duration of the impact is between 0-0,2 sec , how could I calibrate precisely a table of Impact Dynamic Force avoiding excessive Globar Error, and Log Info ''Accuracy condition not reached in last step''? Briefly, I'd like to mention that I tried to perform the analysis defining as accurately as possible a figure of Force domain.

Thank you in advance,

Paschalis M.

When sequencing a marker such as COI, sequences with different size of base pairs are obtained.

After aligning the sequences, it is observed that some sequences extend in the 3'-direction and in other cases in the 5'-direction.

What is the best way to carry out a phylogenetic analysis? Perform the analysis using the original size of the sequences, keeping as much information as possible and completing the information of the short sequences with "?".

Or cut the sequences is recommended and perform an analysis using as information, sequences of the same size.

Can you recommend an article that talks about this?

I am working to compare protein expression protein X and Y in two tissues and have lots of questions about correctly performing the analysis. Here is my current set up.

2 tumors sliced into 5 samples each for a total of ten slides.

Protein X positive Control Tissue

Protein Y positive control tissue

Protein X negative control tissue

Protein Y negative control tissue

Antibody to a protein that I know to be positively expressed in both tissues

Anti-mouse antibody as negative control

Protein X antibody

Protein Y antibody

Can I quantitatively compare MOD between different batches to claim a difference of expression of protein X and Y in tumor A and B?

Am I using to many or two few controls? Do I need to run all of these controls with every batch?

Thanks,

Jacob

I want to performance analysis for ODCA now I need suggestion that which simulator tools is better for this work.

We have performed Clariom-S microarray-based transcriptome and TMT-MS based proteomics analysis on healthy and patient samples.

Our idea was to study the correlation between gene- and protein expression between healthy and patient samples, for which we have calculated an overall mean Spearman coefficient for all the genes- vs proteins-expression correlation. More specifically, I have identified 8000 genes common in both gene and protein study, and calculated mean correlation coefficient. I obtained a Spearman coefficient value of 0.58 for this dataset. 

Further, what we are interested in doing is: calculating pair-wise Correlation between mRNA and protein expression of all 8000 individual gene-protein pairs so as to create figures (as shown in Fig. 2a in Paper -2 and Fig. 3a in Paper1 attached here).

I was wondering if you could provide any insights into how to perform such an analysis. To my knowledge, most researchers use program ‘R’ to find such gene-wise correlation. Unfortunately, I have no experience with using this program. Is there any software/program that I can use for this.

I would much appreciate any help/advice.

Thank you!!!

I would like to know whether it is possible to use the concepts of queuing theory for performance analysis of FPGA. By FPGA implementation I mean stand alone fpga implementation, not as co-processor.

I am trying to perform a numerical analysis on a morphing (folding) winglet and would like to know if there is a "best" tool to perform the analysis. I am currently familiar with Natran Aeroelastic Analysis.

I want to perform analysis on a concrete beam subjected to static load at centre of beam. How can I model steel concrete interaction? How can I model a perfect bond?

while i am performing analysis on two layers it give the result with reference to top layer only not the combination of two layers .

so give me a procedure to create interface between two layers in plaxis.

Hi eveybody,

I saw that several protocols for the analysis of nitrogen wet deposition prescribe the analysis of the collected samples every week.

Would it be fine to perform the analysis of the collected sample every 2 weeks? Are there protocols supporting this timing?

Thanks,

Alberto