Source of database?

More M. Danesh Miah's questions See All

Is there any cases algae not using the nutrient from the wastewater and grow normally?

I am working on microalgae cultivation using waste water. The initial concentration of nutrients were less but the microalgae has achieved biomass growth of 2 g/L. The final concentration of...

08 August 2024 4,812 2 View

I have calcined my catalysts without flowing air from the compressed air cylinder will there be any problem with my reaction if i use that catalysts?

FYI Catalyst is MFI zeolite Si/Al = 140,25.40.11.5,15 I am using this catalyst to study methanol to DME conversion

25 July 2024 2,486 2 View

How can I measure arsenic concentration in a patient blood?

I intend to get an economical and accurate LAB TEST to measure arsenic concentration in blood sample.

23 July 2024 3,654 2 View

It is possible to conduct a structured written interview for a qualitative study?

In your opinion, I would like to know if a qualitative study with a structured interview can be conducted in writing. In other words, we sent out open questions and asked the interviewees to...

11 July 2024 4,163 4 View

What is Differential-Fed in microstrip patch ant? How it is design in CST studio? What is process and procedure to do Differential-Fed in CST studio?

What is Differential-Fed in microstrip patch antenna ? How it is design in CST studio? What is simulation process and procedure to do Differential-Fed in CST studio ?

08 July 2024 7,464 1 View

How to know the TM/TE modes in antenna design in CST studio?

How to know the TM/TE modes in antenna design in CST studio? Example: TM01 ,TM02 ,TM10, TM12, TM30 like this... how can identify the antenna is operate the above said mode? can any one explain...

08 July 2024 6,609 2 View

What is co-polarization and cross polarization? How can plot it from CST studio?

what is co-polarization and cross polarization? How can plot it from CST studio? what are steps and process for find out co-polarization and cross polarization from CST studio?

08 July 2024 7,869 1 View

Why in some degradation experiment the results doesn't fit first or second order kinetics ?

In an antibiotic degradation experiment using metals carbon composites to activate PMS, the results doesn't fit pseudo first or second order kinetics however the degradation efficiency is very...

26 June 2024 6,941 3 View

Why carrier Concentration decreases while increasing Temperature ?

Hi All . Recently, I conducted Hall measurement experiments at high temperatures on highly p-doped diamond with a doping concentration of 2.5×10^20 cm−3 During these experiments, I observed two...

23 June 2024 4,763 0 View

What are the best practices for increasing earth biomass?

I'm thinking of how to increase biomass to replace plastic and industrial waste.

23 June 2024 1,871 4 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 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

If we are using snowball sampling technique, how do we justify the true representativeness of the sample statistically? is there any statistical test?

Are there any statistical methods to justify your sampling technique using SPSS or AMOS?

05 August 2024 9,153 4 View

How to back transform the results generated from analyses using log transformed with In(X+1) data?

I am conducting my analysis using SPSS. I log transformed my data using In(X+1) as my data contain zero values. However, when I want to back transform the regression coefficients generated from my...

31 July 2024 7,860 3 View

Why applying a saved template of a bar chart in a different/new one doesn't take effect in SPSS?

Using SPSS, I made my edits in one bar chart — e.g., font type and size, hiding grid lines, and colours, namely: blue, orange, green, purple, and grey for 5 bars, respectively, etc. — and I saved...

29 July 2024 1,981 1 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

Paired t-test or unpaired t-test for my quantitative data with SPSS?

I am conducting a qualitative-driven approach to mixed-method research. The role of my quantitative data is to corroborate the findings of the qualitative data. Qualitative data has been collected...

24 July 2024 9,799 3 View

How can we simulate(with FEM) the shape of Mobius strip using Abaqus Learning edition?

Aim is to simulate the shape of Mobius strip (an elastic ribbon) in simple way ( using Abaqus Learning edition). In literature, Mobius strip is modeled as Kirchhoff Rod / Cosserat plate. But, such...

15 July 2024 4,388 1 View

How do I compute SEM for percentages using SPSS?

I'm evaluating the reproductive performance of quails. I have the fertility, and hatchability percentages for six different sire groups and would like to determine the significant difference...

14 July 2024 2,203 5 View

How to prepare materials before protein-peptide or protein-protein docking?

Hi all, I am conducting research on screening peptides (20-35 amino acids) with potential for treating dengue fever through protein-peptide docking methods. In the protein database, I found the...

10 July 2024 8,037 1 View

Olga Kryazhych

SPSS is not the only one. The question that interests you is also solved using some program for drawing up business plans. It is possible to compare products.

León Darío Parra Bernal

Dear Danesh .

There are many sources related with demand for products, worldwide and by country. All depends of the scope and goals of your research. I recomend you the next link:

http://qog.pol.gu.se/data