Why am I getting negative values for antioxidant assay standard curve?

I am trying to get a standard graph for antioxidant activity of ascorbic acid using 0.1 mM DPPH solution. I had used 100 ug/ml stock and serial dilutions were from 1 ug/ml to 10 ug/ml. All of the...

07 August 2020 1,835 3 View

What interpretation can be given for similar values of anodic and cathodic tafel slopes in corrosion studies?

During calculating the corrosion parameters using tafel extrapolation method what does it mean if the values of anodic and cathodic tafel slopes are coming out same (approx.).

19 May 2019 3,147 3 View

How to choose training data from a satellite imagery for supervised classification?

I am performing supervised classification of Sentinel 2 imagery using a Random Forest Classifier. I wish to select the training data from the image. Could anyone please tell me the method to...

06 February 2018 8,644 2 View

What is the procedure to extract single band from Sentinel 2A and export it as GeoTIFF in SNAP?

I am trying to export individual bands from Sentinel 2A file by clicking the individual band and using the Export -> GeoTIFF option from file menu. But every time complete dataset gets exported...

14 October 2017 8,718 3 View

High Strength Low Alloy Steels (HSLA)?

13 April 2017 5,349 4 View

Creep and Superplasticity notion?

For better creep resistance of the material, the single crystal is recommended, like single crystal nickel superalloy for turbine blades. But, why the grain size less than 10 micrometres is...

17 February 2017 8,898 3 View

What kind of purification method is used for zika virus?

All papers only mention using supernatant of the cell culture. But wouldn't the FBS in the medium cause unnecessary binding?

26 January 2017 7,295 4 View

Where i can get hydraulic modulator dynamics for ABS? how ECU output actuate hydraulic valves and motor?

I an searching for hydraulic modulator dynamic and how to use my controller output( braking torque) to modulate pressure by actuating solenoid valves? Please help me... Thank You

09 November 2016 9,440 4 View

What is the relation between Equicohesive temperature and Recrystallization temperature?

What is the relation between Equicohesive temperature and Recrystallization temperature?

01 February 2016 4,366 1 View

Is the Lorenz curve the same as the cumulative frequency curve?

In case of the rank frequency data if after calculation of cumulative frequencies if the cumulative frequencies are normalized and the frequency curve is drawn (for cumulative frequencies) with...

07 January 2015 3,820 5 View

Which is the best place in the world for the plant biotechnology research?

I am searching for a good place for the Post Doc,

02 March 2021 4,053 3 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 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

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

Good morning research fellows, Has anyone worked with senna alata plant extract on any kind of fish?

Literatures on the piscicidal effect of sennaa alata is scanty. if you have any related litrature either in the bark, leaves or roots used as treatment to any aquatic organism please kindly help...

28 February 2021 9,138 2 View

How relevant is Mini slump cone?

for all the rheology researchers, my question is, how relevant is a mini slump cone (smaller than a standard 50 cent rheometer). currently based on testing, the thickness of slumped material is...

26 February 2021 3,668 1 View