Calculate sample size for diagnostic tests?

What sample size formula should I use to compare the three area under the roc curve (AUC) obtained from three diagnostic methods from similar sample? MedCalc software gives us the sample...

20 December 2020 5,635 3 View

Dose any-one knows about cleaning validation for pathogens from fermentor?

Hi Dose any-one knows about cleaning validation protocols for pathogen-bacteria from fermentor? In industerial size, 1000 lit?

15 December 2020 4,418 3 View

How can I model mechanical properties of a material using Von Misses-Hill model in Abaqus?

Hello everyone; I am trying to simulate a stent which is made of stainless steel in abaqus and in addition to the elastic properties that are defined by Young's modulus and Poisson's ratio I need...

15 September 2020 1,809 4 View

How can we calculate the concentration of 1000 tons of carbon dioxide in the air in PPM?

Dear All scientists; How can we calculate the concentration of CO2 emitted in the air in PPM? shall we use PPMv(Volume PPM) or Mass PPM is also acceptable? Regards

01 August 2019 7,464 4 View

How can I recall a modified citation style in Mendeley with the name I entered?

When I save as a modified style and change its name, the new style does not show up with the name I have entered for in the styles list. In stead, a general title like "APA-Saeideh" is built...

20 May 2019 6,622 6 View

How can implement print screen key action in c# ?

We can implement for example enter key in c# by SendKey.Send( {"ENTER"}) code. but this method didn't have option for print screen key (reserved for future use ). how can I implement it? My...

29 January 2019 6,161 1 View

How do you control the cancer?

25 October 2018 7,240 3 View

Economic evaluation modeling based on secondary data; which of the following approaches is accurate?

I need to run an economic evaluation model of 6 drugs based on secondary data of a network meta-analysis study which has covered 21 drugs. This study also has reported separate pairwise head to...

03 September 2018 3,174 1 View

Can I run GEE having two within factor variables?

I have one factor as time (3 time points) and the other as treatment( absorbable versus nonabsorbable Sutures that each of them were used on different sides of a scar) so two treatments had been...

08 June 2018 6,220 1 View

How can I make a teeth whitener in the chemistry lab?

How can I make a teeth whitener in the chemistry lab?

02 June 2018 6,306 3 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

How to avoid polypyrrole deposit on counter electrode?

Hi all, Currently, I electrodeposited polypyrrole on carbon electrode but I got some problem when polypyrrole also deposited on the surface of the counter electrode. The concentration of pyrrole...

05 February 2021 2,103 3 View

How to apply graphene oxide on an gold electrode?

Dear Fellows, now it is the time to push graphene applications further in terms of easy and low cost production surroundings. Thus I recently dived in the materia and I am facing tons of papers,...

02 February 2021 6,284 2 View

How to get mesoporous cobalt ferrite thin film on Pt/Si substrate by electrodeposition method?

We want to deposit a thin film of mesoporous cobalt ferrite using a surfactant on Pt coated Si substrate by electrodeposition. What is the procedure for it? Does KLE polymer useful for this procedure?

10 January 2021 467 10 View

I want to use Gold electrode as a reference electrode for electrodeposition of nanostructures. Can i use it and how ??

How to use a Gold electrode as a reference electrode ??

04 January 2021 4,058 4 View

How to form Ir nanowires into HOPG by electrodeposition?

Hello everyone, Recently I am working on formation of nanowires on HOPG by electrodeposition. I started with Pd by using PdCl2 in HCl, and it worked. Pd NWs are formed on HOPG. However, my goal is...

12 December 2020 5,877 2 View

How can the deposition time affect the carrier density concentration (electrodeposited thin film)?

How can the deposition time affect the carrier density concentration (electrodeposited thin film)

07 December 2020 7,954 3 View

Cane we produce any brittle (CdTe, InSb) or ductile (Ni) electrodeposited thin films superplastic just by making ultrafine grained microstructure ?

I have seen in literature and myself experienced high ductility in some pulse electrodeposited Ni and Ni alloys such as Ni-Co and Ni-W thin films. This high ductility is due to the superplastic...

04 November 2020 4,112 2 View

What is the application of copper electrodeposited on Graphite ?

As we know Graphite is a nonmetal and copper is a metal then why we electroplate copper on graphite? What is the application of copper electroplate on Graphite?

13 September 2020 2,696 6 View

How the addition of organic additive influenced the average size of the crystallites?

Dear All, In XRD data, How the addition of organic additive influenced the average size of the crystallites of metal electrodeposition (Electroplating)? Regards, Hani

26 August 2020 1,870 7 View