Why are Mn(II) complexes, in general, less intense than Fe(III) complexes?

Excepting a few, octahedral Mn(II) complexes are less intensely colored than those of Fe(III) complexes, although the metal ions have the same outermost configuration(3 d^5) and the complexes are...

11 December 2014 6,441 0 View

Why do Ce^3 and Yb^3 differ largely in their magnetic moment values?

11 December 2014 2,546 2 View

How will Cis and Trans forms of square planar complex Pt(NH3)2(NO3)2 react with oxalic acid?

Square planar Pt(NH3)2(NO3)2 exists both in the Cis and Trans forms. Will the two isomers give same or different products with oxalic acid ? Please write equation/s in your answers. Thank you.

11 December 2014 2,271 2 View

How will you account for the following changes in 19^ F- NMR spectrum of SF4?

11 December 2014 6,677 8 View

What is the relative order of energies of the four MI components of Cu [I=3/2] ?

11 December 2014 4,580 0 View

Why are the forbidden d-d transitions so commonly observed in octahedral complexes?

Although the d-d transitions in octahedral complexes neither obey the Spin rule nor the Symmetry rule, yet they are generally observed in the electronic spectra. Pls. cite at least three reasons...

11 December 2014 9,251 1 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...

02 March 2021 6,186 3 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View

How to improve and implement WBAN MAC and Radio modules under Castalia 3.2 ?

Hello researchers, Hello Castalia3.2 researchers I am a beginner with Castalia, I work on optimization of RFID systems used in wireless body networks. I simulated a WBAN with 10 nodes and one...

28 February 2021 400 1 View

Compact antenna for the frequency range 1 MHz-5 MHz?

Hello everybody! I have a problem with developing a compact antenna for the 1MHz-5MHz frequency range. Tell me what type of antenna can be used and what books and articles to read to perform this...

27 February 2021 7,710 4 View