How to indicate the degree of litter decomposed by microbes?

Any technique could detect the degree of litter decomposed by microbes? Or any indexes could do this job? I want to split the contribution of microbes during decomposition, so any suggestions...

23 February 2021 1,362 5 View

How to improve dissolution of neosome?

I have made neosome from herbal drug. Neosomes are stable. But I face problems in dissolution. I used minimum ratio of 1:1:0.25 ( Drug:span 60: Cholesterol and GMs. Now how can I active better...

17 February 2021 3,584 1 View

Is receiving Invitation to submit a article from the journal is big deal ???

I have recently received a invitation from the journal "Current Pharmaceutical Bio-technology" to submit a research article. As i didn't received any invitation before. so, is it normal to to...

04 February 2021 4,596 23 View

Hi, could anyone suggest any mammalian expression plasmid that has a GFP as a selection marker?

I am looking for a plasmid that can express my gene of interest without GFP fusion. But I want its selection marker like neomycin replaced by GFP or any other fluorescent protein so that I can...

29 October 2020 2,247 3 View

What is the difference between PID-controller design based on retrend / detrend model ?

Dear all, I have a set of I/O data. I estimated a transfer function based ( command: tfest) on this data in MATLAB. (I removed the trend from the data before it: command: detrend). Can I...

24 October 2020 1,664 5 View

Predict charge on a compound at different pH?

Dear fellow scientists, Do you know of a software or a resource base which can predict the charge on the analyte at different pH conditions? Thank you, Abhishek P.S. I am new to HPLC, even a...

19 October 2020 8,605 3 View

How to define Darcy's flow for pore pressure cohesive element in Abaqus?

Hi everyone, I am trying to define a Darcy's flow for pore pressure cohesive element in Abaqus. When I give permeability to the elements, the output of tangential flow rate (GFVR) is always shown...

11 October 2020 1,195 3 View

What is the model equation between resistivity and temperature of a extrinsic semiconductor?

Can anyone Tell me what is the model relation between resistivity and the temperature for a extrinsic semiconductor. Kindly provide with summarized clarification & model equation between...

30 August 2020 6,182 11 View

What is timely Supply chain management issues to be researched as a result of the COVID 19 pandemic?

Dear Research Scholars, Would you please share your opinion on "What is timely Supply chain management issues to be researched as a result of the COVID 19 pandemic?" Thanks Shuvro Sen

22 July 2020 6,995 15 View

Does anyone have a case study of kick/influx and fluid losses during drilling, while MPD (managed pressure drilling) system is active?

Looking for a case study where severe influx and loss events were experienced even when a MPD system is installed and active. Interested in the sequence of events and mitigation steps. A real well...

12 June 2020 8,922 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

Helix antenna coupling problem?

Dealing with a helix antenna, made with flexible material and not rigid like using a PCB board or wire. At the beginning of the helix is too close to the ground plane, causing coupling. How can I...

21 February 2021 4,453 3 View