Analytics Maturity of Logistics SMEs?

Data are important to companies. That holds for logistical companies too! With this survey we measure where logistical companies stand when it comes to "analytics". Analytics, here, is a catch-all...

13 December 2020 5,834 3 View

Do Radial Basis Function Networks trained through Gradient Descent benefit from Logistic Regression?

When training a Radial Basis Function Classifier for classification problems, we generally train the model by making use of the pseudo-inverse of the design matrix, minimizing the MSE error...

09 December 2020 2,190 1 View

Optimal storage of Sodium Fluoride solution?

Is there a specific reason why NaF should be stored above 0 degrees. Are there any research papers out there suggesting a reason?

12 March 2020 571 3 View

Angular velocity from a 2D Cartesian solution plane?

17 March 2019 9,947 2 View

How do we make sustainable design relevant to our current and future design practitioners?

It remains a truism that phenomenon of sustainability has dominated all fields of human endeavour in recent times. Nonetheless, the question remains: "How do we empower students to embrace and...

14 June 2018 9,468 3 View

What in your opinion are the opportunities and challenges of parent/professional collaboration for inclusive education?

What in your opinion are the opportunities and challenges of parent/professional collaboration for inclusive education, particularly towards learners with special-needs and disabilities ?

16 April 2018 671 6 View

Is there a way to selectively modify a polymer using a laser so it can be conjugated to an amine or carboxyl functionalized nanoparticle?

I have a nanoparticle that can be functionalized with amines or carboxyl groups. I would like to "print" the nanoparticle onto a flat polymer surface, only in regions that have been irradiated by...

12 April 2018 3,252 3 View

Are there ethical considerations in the instructional design of online courses in the context of inclusive education??

What are the most important ethical questions instructional designers should consider in inclusive online education? What are the grey areas?

10 April 2018 6,352 3 View

Are the chances of surviving a plane crash greater over land or water?

Just curious whether the chances of surviving a plane crash is greater than that of land or water, or it is the opposite? U can share reasons for your thoughts if you don't mind.

29 March 2018 7,300 3 View

Would you turn in your resignation or not?

Would you resign or still hold on to your position at an academic institution where the are seeming tensions ( eg. academic freedom and controversial issues stemming from teaching subject matter)...

24 February 2018 6,632 12 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How to immerse bricks in wax ( for coating ) ?

Do we immerse the bricks horizontally or vertically ? #bricks#waterproofingsurface#civil#engeenering#chemicalengineering#wax#parafinwax

28 February 2021 6,685 2 View

How can I selectively dry etch Ti on a polymer substrate?

24 February 2021 5,378 1 View

Can I use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography?

Hi! I would want to know if I can use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography. This column has a polyethylene glycol phase, but I can't find the manual to check...

22 February 2021 730 2 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

How can I measure the surface interaction or surface interfacial chemistry between polishing abrasives and upper surface of substrate ?

I am working on polishing abrasives. I need to do few characterizations ? which can provide the on time surface chemistry of substrate with polishing abrasive during optical polishing. I would...

18 February 2021 5,319 3 View

ZnS oxidizes to ZnO!!why??

when I put my ZnS solution in the chemical bath, the ZnS oxidizes so there are ZnO peaks appearing because of the reaction with the oxygen in the air, despite the fact that I close the beaker...

14 February 2021 5,778 9 View

Charmm/GROMACS Residue 'ZN' not found in residue topology database?

I am trying to do some MD simulations of a protein with zinc ions. I am trying to use a charmm forcefield (I have tried 2017 and 2021) and Gromacs. I get an error when doing pdb2gmx Residue 'ZN'...

12 February 2021 9,367 2 View