Will programmable logic controllers (PLCs) be replaced by IOT devices as the latter become more reliable?

Will programmable logic controllers (PLCs) be replaced by IOT devices as the latter become more reliable?

29 December 2020 255 6 View

Tcl script in VMD?

Using a VMD script written by me (MOisoall.tcl) I try to visualize the behavior of HOMO in the course of an inversion of ammonia (Fig. 1), but the VMD script does not work correctly (Fig. 2)....

11 October 2020 2,310 2 View

Dear Ji Eun, could you contact me urgently about your Primavelans n. sp. please?

Did you finish the paper and publish? Hope you and your family are well! Best regards, Hans

07 April 2020 1,490 4 View

Which is the Risk of Long QT and Sudden Cardiac Death by Drugs Used to treat COVID-19?

Numerous drugs are used these days without in-depth evaluation of efficacy and safety for the treatment of life-threatening complications of COVID-19. Among these, an important number are known...

26 March 2020 816 17 View

Which pharmacological modulation of immune response to SARS COV-2 could reduce the incidence of acute respiratory distress syndrome?

Differences in immune responses to emerging corona viruses and the difficulties of developping vaccines contribute to a surge in ARDS in vulnerable populations, leading to acute shortages and...

16 March 2020 3,520 26 View

Does anyone have a review article or reference describing the acid stability of SPE C-18 cartridges?

I am trying to find sources which describe the instability of C-18 columns and SPE cartridges. I know there are a few like X-bridge BEH that are more stable down to pH2. In our hands a regular...

03 March 2020 7,704 2 View

What are the statistics of use for the automatically triggered, obligatory subjunctive in Romance, especially Spanish?

In the Romance languages, many syntactic contexts, especially in subordinate clauses, require a subjunctive mood on the verb, not leaving any romm for mood choice. In other contexts, however,...

16 February 2020 3,747 2 View

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19 October 2019 4,850 3 View

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09 October 2019 1,823 4 View

Which fundamental questions about physical reality are still open?

The origin of gravitation, the origin of electric charge and the fundamental structure of physical reality are resolved, but these facts are not yet added to common knowledge. Also the structure...

09 October 2019 2,254 20 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

Is stone a sustainable material? Is it a sustainable approach to use natural stone waste in architecture?

I'm designing a zero-waste restaurant and considering using marble waste to make some tables and a bar countertop. My clients think it's not "sustainable enough" and I would like to have more...

01 March 2021 4,326 7 View

Why are my bands weird in this Agarose gel?

Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.

01 March 2021 9,952 3 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

How the values of errors can be calculated for thermodynamic data?

I have calculated thermodynamic parameters for surfactant solutions in aqueous and mixed alcoholic solvents. I want to calculate the value of errors in the data and represent it in the table along...

22 February 2021 239 2 View

When I reacted Bidentate NS Schiff Base with metal salt (M-Cl2) in +2 oxidation state in proportion of (2:1) , getting sticky product ,, why?

When I reacted Bidentate NS Schiff Base with metal salt (M-Cl2) metal chlorides in +2 oxidation state in proportion of (2:1 Schiff base &metal salt) , i was get sticky material Why ? ---~...

21 February 2021 7,970 5 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

Mixture neutralization after Boc deprotection ?

I am performing a Boc-deprotection with HCl in organic solvent (dioxane or Ethylacetate) but would like to isolate the free amine. Several problems: - Neutralizing with inorganic base as NEt3...

18 February 2021 3,366 3 View

Which non-coordinating solvent dissolves anhydrous Iron(II)chloride?

Hallo, i am looking for a non coordinating solvent that dissolves anhydrous FeCl2 for a synthesis in which i can not use solvents like thf, pyridin etc.. I already tried benzene (no solubility),...

11 February 2021 6,105 1 View

Do we have any empirical model to model the combined effect of carbonation and chloride attack in concrete concerning climate change?

Do we have any empirical model to model the combined effect of carbonation and chloride attack in concrete concerning time-dependent temperature, relative humidity and concentration of carbon dioxide?

08 February 2021 4,277 1 View