What is the difference between soluble ions and exchangeable cations? And How to determine each of them?

I used percolation columns to reclamation saline-sodic clay soils . And my question is, What is the difference between soluble ions and exchangeable cations?

18 January 2021 6,868 3 View

How to find the squeal frequencies in the Abaqus?

I am analyzing the squeal of simple brake using Abaqus and I tried to find the unstable frequencies using complex frequency which caused the squealing noise; however, all of the modes have nearly...

01 January 2021 7,035 4 View

No title

We are using an Ogden hyperelastic material property to model an elastomer. The elastomer is a cylindrical bushing. Our simulation is static (a sine input in semi-static condition) so we are...

23 September 2020 9,477 4 View

Is there any alternative database for Mipred?

I want to know if a sequence is related to a pseudo microRNA precursor or not. I tried to use the Mipred database but it seems to be out of reach. I'm eager to know if there are any other...

20 August 2020 502 2 View

What is the effect of pressure in reaction of fixed bed reactor?

for the gaseous reaction in a fixed bed reactor, I found two approaches. the high temperature(300-400 c) and atmospheric pressure and the medium temperature(100-200 c) and high pressure(6-15 bar)....

10 August 2020 1,718 3 View

What does this reviewer's comment mean about the optimization of an antenna?

29 January 2020 6,448 5 View

How can we find a proper journal for publishing a specific topic?

In order for finding an appropriate journal for submitting the manuscript of a specific topic, I am confused so much. The topic is relating to applying a stochastic process on entrepreneurship...

26 January 2020 3,111 3 View

How to create an inductor 2.mH with a toroid core ferrite?

I want to create an inductor with a ferrite core of 2.2 mH, but I do not know the size of the core, the number of turns and the size of the wire. The maximum voltage and current of my work are...

30 June 2019 6,586 3 View

Can anybody help me with my XRD test results?

I have andesite source of road aggregates. I did XRD test on bulk powder and oriented samples ((1) air dried, (2) treated with ethylene glycol at 60oC, and (3) heat-treated at 550 oC for 45...

17 December 2018 9,207 2 View

Is it true, that herbal remedies have role in management of chronic diseases like hypertension , diabetes and renal diseases ?

in our society a lot of people with chronic diseased use herbal medicine in the course of treatment

13 November 2018 8,285 11 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

How can I integrate a routing protocol in a tiny device (e.g. Raspberry Pi)?

Hi Community, I'm facing the issue of integration/compiling a new routing protocol in a WSN simulator. The final goal is to successfully add, configure this routing protocol in hardware devices...

01 March 2021 9,332 6 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View