Can anybody provide me sequences of SPF10 primers?

03 February 2021 1,053 2 View

How to input an exogenous variable in a GARCH model?

Hello, I have a question regarding financial time series. I am studying the effects of Quantitative Easing on the US stock market. I have tried to fit an ARIMA model to my S&P500 returns with...

01 February 2021 8,325 3 View

Kruskal-Wallis Test does not offer results in Model Viewer (SPSS 26.0)?

One of my students faces this problem in SPSS 26.0: When he runs Kruskal-Wallis test, the Output does not offer him access to the Model Viewer (where the pairwise comparison etc. would be...

11 November 2020 6,345 8 View

The effect of number of antennas in multistatic architecture for imaging and SNR?

I believe by using greater number of antennas in simulation, SNR would also be improved. However I have no proof for that. Are there any equations that support my idea?

25 September 2019 4,890 3 View

Can you recommend suitable primary antibody for Tau detection in rat?

Hi, I have problem detecting tau in rat primary astrocyte lysate by WB. I have used Tau46 form Santa Cruz Biotech (Sc-32274) but I don't see any band not even in positive control (rat brain...

23 May 2019 4,564 3 View

How can I define the polarization of my incident field in CST for my horn antenna?

I want to design a horn antenna which only produces incident field along theta (it's got copolarization along theta). how can I do that?

05 February 2019 9,911 3 View

How to model utility grid in solar grid tied system in Simulink?

I am modelling grid tied solar PV with backup battery and I inserted load between solar system and grid. According to the graph of rms currents: Igrid = Ipv + Iload, which doesnt make any sense to...

10 May 2018 4,694 2 View

SPSS error "subscript is out of range", what to do?

21 January 2018 9,637 4 View

How to explain different patterns resulting after acridine orange assay for assessment of sperm DNA integrity?

We have performed AO assay on human ejaculated sperm. Everything seems, that works well, however we observed und microscope every cells stainned green and moreover there are two distinct...

02 October 2017 3,273 3 View

Method to make thin layer on glass substrate from nanopowder scintillator

Hi, does anyone have experience with making a thin film from scintillator nanopowder or nanopowder in general (GGAG:Ce, LuAG:Ce ... 10 - 30 nm particle size) on glass substrate. I writing master's...

14 August 2017 1,964 1 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

Your thoughts on the spherical densiometer to estimate relative species canopy cover?

Hi biologists and biogeomorphologists, I want to characterize vegetation plots on a transect that follows a successionnal gradient from a river bed to a mature forest. Ecologically, I am...

26 February 2021 5,720 2 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

Bayesian decision trees and bayesian regression trees in Python and/or R?

I am looking for implementation of bayesian decision trees and bayesian regression trees in Python and/or R.. Do you know if the existing libraries support this

23 February 2021 6,689 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

How to assure whether a regression tree overfit or not by seeing bias-variance value of the model?

Lets consider a regression tree in which variance is 1.1065*e-10 and bias is 2.962e-13. Also the model RMSE on training set is 1.5e-5 and on training set is 1.2950e-5. Is the model is overfit or...

22 February 2021 7,755 2 View

Are there packages (R or Python) for simple models (bucket?) to assess soil water content?

Hi everyone. I am researching droguht effects on soil water drought. I am looking for already implemented functions in R or Python to estimate soil water content from precipitation,...

21 February 2021 2,084 1 View

Which type of loading is to be used in dynamic analysis of Machien foundation?

Hello Everyone, Hope you all are doing well. I'm trying to simulate a machine foundation in ABAQUS with a geo-cell reinforced soil bed. Im totally confused to which type of loading would be...

21 February 2021 4,388 3 View

Are cloud points able to identify tree species?

Hello Dears My goal is to classify dense forest tree species using drone images. Is it possible to classify dense cloud points? If yes, in what way and in what software? Thankful

15 February 2021 3,475 3 View

Measurement of water retention in organic substrates without a pressure plate?

Hello, I'm trying to measure the physical and hydrological properties of organic substrate media. Currently, I'm referring The book Soil sampling and Methods of Analysis by Carter and Gregorich....

09 February 2021 3,233 8 View