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Choosing Rolling Window Value for Quantile Connectedness Analysis?

Hello everyone. I am currently working on implementing quantile connectedness analysis for my data, utilizing monthly frequency. However, I am facing challenges in selecting an appropriate rolling...

18 November 2023 4,520 4 View

Robustness check for the wavelet coherence techniques ?

What is the best technique to employ as a robustness check with wavelet coherence to investigate the impact of uncertainty on the stock market ( weekly data)?

23 July 2023 2,249 1 View

R-squared r2 for quantile regression ?

Hello everyone! I would like to inquire about determining the R-squared (R2) for quantile regression. I have consistently obtained low R2 values in my results ( Eviews). Any insights or...

06 June 2023 5,711 5 View

Someone can clarify the morphological classification of marine macroalgae used by Littler and Littler?

Someone can clarify the morphological classification of marine macroalgae used by Littler and Littler (1981).

12 February 2023 4,372 2 View

How we put Annotations in Sigmat plot Graph?

Hello, When we export a graph from CST to Sigma plot how we add values like frequencies and other values, Thanks in advance .

27 December 2022 1,581 2 View

Significance of quantile-on-quantile regression (QQR) at 5% level ?

Hello everyone, It would be great if you can point me towards answers on how to know the statistical significance of QQR estimates at 5% level for all quantiles ( from 0.05 to 0.95 ). Any help...

03 October 2022 3,945 1 View

What information can be extracted from the intensity, FWHM and raman shift of the ZnO Raman spectra ?

What are significant of the variation in the intensity ?

20 June 2022 7,253 0 View

Wath's the effect of solvents in growthe kinetics of ZnO NANOWIERS ?

wath's the beste solvent for obtaine a colloidal suspension of zinc acetate and NaOH? water ethanol 1-buthanol 2-propanol i'd like to explaine for me the effect of those solvent in the reaction...

26 April 2019 587 3 View

Dear all, I get one single band of 1000 bp using plasmid isolation kit, but I am confused about result since I didnt get 3 or 4 bands ??

Dear all, I am facing a problem with plasmid isolation from thermophilic bacteria. For one strain I was getting one single band of 1000 bp using Thermo Scientific GeneJET Plasmid Miniprep Kit and...

10 March 2019 3,302 14 View

Wich the best surfactant can we use to obtain ZnO nanowires ?

the best surfacant for growth ZnO nanowires

07 October 2018 1,636 3 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Is it possible to use the Fused Deposition Modeling (FDM) to additively manufacture interconnected porous structure generation of >100-200 micrometer?

Usually, additive manufacturing techniques like SEBM, SLS, and SLM are used for interconnected porous lattice structure generation with sizes of >100–200 micrometers. Can the Fused Deposition...

09 August 2024 7,892 0 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

How can I apply boundary conditions in an orthotropic steel deck numerical model using ABAQUS software?

I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...

08 August 2024 719 0 View

Can you suggest reliable sources defining "3D mesh" and "3D city models"?

Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...

06 August 2024 9,986 2 View

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...

05 August 2024 454 3 View

What are the shear and normal stiffness values of an LLDPE liner in 3D numerical modeling of a stockpile?

I am seeking experimental or applicable data for the liner (LLDPE) interface in FLAC3D numerical modeling of a large stockpile. Could you please recommend suitable references? The preferred data...

05 August 2024 3,665 0 View

Is it necessary to covary exogenous constructs in a structural model?

I am working on a SEM model where i have 7 latent variables (6 exogenous and 1 endogenous). In AMOS when I co-vary the exogenous constructs, only 2 paths are coming significant out of 6. But when...

03 August 2024 6,028 4 View

Given the current level of natural phenomena cause by the climate change and environmental pollution, will the AI find the technological solutions?

AI-driven technologies offer previously unheard-of capabilities to process enormous volumes of data, extract insightful knowledge and improve predictive models, according to the UN’s World...

31 July 2024 9,733 3 View