Does anyone have a good reference for the formation of cone-in-cone structures in coal?

More Jana M. Horak's questions See All

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

I encountered a situation where the 16s PCR amplification worked perfectly with the DNA from the same sample, but using the same sample Don't working?

I isolated microbial DNA from marine water samples taken at various sites using the Qiagen Power Water DNA Isolation Kit, including a modified enzymatic lysis step. I encountered a situation where...

24 July 2024 9,688 0 View

What is your view point regarding the edible coating on the green leafy vegetables?

1. Nutritional contribution of the edible coating 2. Self life of the vegetable to be coated with the edible coating. 3. Toxicity development after preserving the vegetable with the edible coating.

11 June 2024 1,740 3 View

During ws2 growth via cvd I have noticed black round spots on the si(100) substrate. please suggest me reason behind this?

I am using 20 mg of WO3, 800 mg of Sulphur, 925 oc growth temp, 280 oc S temp, and a 20 sccm gas flow rate.

05 May 2024 8,665 2 View

Can I allow cell phones in SPF animal house?

I have questions regarding the safe use of cell phones in animal research facilities. While I acknowledge the hygienic risk, we often spend a lot of time inside our barrier SPF facility and we...

14 April 2024 3,486 0 View

Inquiry Regarding Research on Female Sex Tourism in Jamaica?

Ladies and Gentleman, My name is Jana Maric, and I am a tourism management student at the university of applied sciences in Germany currently researching for my bachelor´s thesis in the field of...

08 April 2024 4,449 0 View

Can you find this relation ((β²+α²)/2αβ)sinh βb sin αa + cosh βb cos αa = cos k(a+b) from given determinant?

Please do it by hand, if not possible just do by some analytic engine.

26 March 2024 2,028 0 View

Why did I get the cracks on thin film after annealing? And how can I overcome this problem?

I deposited Ga2O3 thin film on fused quartz substrate at 500oc in Ar ambient by RF sputtering and then annealed at 900oc (very slow heating and very slow cooling i.e 1oc/min) in air ambient for 1...

11 February 2024 3,417 4 View

How to incorporate the negative slope (necking) part of an experimental tensile test data in ANSYS?

ANSYS multilinear material model does not support plastic strain vs stress data with a negative slope. Moreover, it assumes perfectly plastic (horizontal) behaviour from the end data point. How...

01 February 2024 9,950 0 View

Regarding UGC care list journal?

INDIAN JOURNAL OF NATURAL SCIENCES ISSN: 0976-0997 ( Print, Bimonthly ) Multidisciplinary Sciences Web of Science Indexes: Zoological Record is this journal UGC care list II category?

25 December 2023 4,017 2 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

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

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

Do you think in which age of geology laterites can be more than other ages in Iran?

I want to know more about laterites in Iran.

31 July 2024 8,219 2 View

In SEM, if a latent variable consists of three observed variables, and each observed variable has four items, what should I do?

Suppose I am studying the construct of "Academic Motivation" (latent variable) in students, which is measured through three observed variables: "Intrinsic Motivation," "Extrinsic Motivation," and...

31 July 2024 3,913 6 View

Bootstrapping in SEM Amos ?

Can a researcher use small sample size of 40 while using SEM with bootstrapping of 1000 and is it possible to get published

28 July 2024 4,402 2 View

With attention to past my experiences on field geology I think any mineral ores can be in any geology area. Are you agree with me?

I want to know more about ore deposits in world.

27 July 2024 3,827 4 View

Does it exist some special technique for cutting ceramic membranes for Cross-sectional FESEM images?

Does it exist some special technique for cutting ceramic membranes for Cross-sectional FESEM or SEM images?

25 July 2024 5,482 2 View

Comparing Liposome Size: DLS Measurement vs. SEM Observation with Air Drying ?

I have an issue with SEM imaging of liposomes. When measured by DLS, they appear to be around 120 nm, but when using SEM with simple air drying, they appear much larger, around one micrometer.

25 July 2024 3,395 3 View

Is it possible to do transient simulation in HFSS in presence of magnetic biasing?

I have designed magnetic material with different biasing conditions in HFSS. Now I want to give an RF AC signal and do a transient simulation in HFSS. Is it possible to do in HFSS? Please help me...

24 July 2024 9,319 5 View

Graham Oliver

Many thanks tis is very helpful.

Jana

Masoud Ovissi

Dear Jana,

In attachment you can find some papers regarding your question. I tried to order them from historical times to recent.

Best Wishes,

http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=5380032&fileId=S0016756800190193

Jana M. Horak

Dear Masoud

Many thanks for this information.

best wishes