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Open Access

Accurate expressions for optical coefficients, due to the impurity-size effect, and obtained in n(p)-type degenerate Si crystals, taking into account their correct asymptotic behavior, as the photon energy E (\rightarrow\infty)

H. Van Cong

Abstract: In our three previous papers [1, 2, 3], referred to as I, II and III. In I and II, our new expression for the static dielectric constant, \varepsilon\left(r_{d\left(a\right)}\right), r_{d\left(a\right)} being the donor (acceptor) d(a)-radius, was determined by using an effective Bohr model, suggesting that, for an increasin [...] Read more.

Abstract PDF (1439 K) May 16, 2023 7 Downloads 124 Views DOI: 10.54647/physics140547

Open Access

MXene-based material optimized shielding effectiveness of chassis

Ke Meng, Enbo Liu

Abstract: The electronic equipment needs a special circuit design during working in complex electromagnetic environmental. Human-made or natural electromagnetic interference has a large effect on electronics. Both the couple of signal cable and the bit error rate during high-speed communication affects the reliability of equipment. T [...] Read more.

Abstract PDF (1975 K) April 17, 2023 7 Downloads 169 Views DOI: 10.54647/physics140541

Open Access

Same maximum figure of merit ZT(=1), due to effects of impurity size and heavy doping, obtained in the n(p)-type degenerate GaAs-crystal (\mathbf{\xi}_{\mathbf{n}(\mathbf{p})}(\geqq\mathbf{1})), at same reduced Fermi energy \mathbf{\xi}_{\mathbf{n}(\mathbf{p})}(=\mathbf{1}.\mathbf{813}) and same minimum (maximum) Seebeck coefficient \mathbf{Sb}\left(=\left(\mp\right)\mathbf{1}.\mathbf{563}\times{\mathbf{10}}^{-\mathbf{4}}\frac{\mathbf{V}}{\mathbf{K}}\right), at which same \bigm\left(\mathbf{ZT}\

H. Van Cong

Abstract: In our two previous papers [1, 2], referred to as I and II. In I, our new expression for the extrinsic static dielectric constant, \varepsilon\left(r_{d\left(a\right)}\right), r_{d\left(a\right)} being the donor (acceptor) d(a)-radius, was determined by using an effective Bohr model, suggesting that, for an increasing r_{d\ [...] Read more.

Abstract PDF (1442 K) March 19, 2023 11 Downloads 270 Views DOI: 10.54647/physics140532

Open Access

On Astrophysics and C-14 Archaeological Methods

H.-Q. Liu

Abstract: Based on the historical viewpoints and our published viewpoints, and also adding some deeper insight, in this paper new explanations are given to the Solar system and the Galaxy. We also clarify the prevalent theory of matters to indicate that the method of dating ancient sites with carbon-14(C-14) is invalid. [...] Read more.

Abstract PDF (1096 K) March 12, 2023 16 Downloads 198 Views DOI: 10.54647/physics14508

Open Access

Optimization of carrageenan extraction from Kappaphycus alvarezii red algae using microwave assisted extraction method with variation of solvent concentration

Syaharuddin Kasim, Subehan, Gemini Alam, Yusnita Rifai, Ismail, Sarce, Rifka Nurul Utami

Abstract: Over time, new extraction methods have been developed, one of which is the Microwave Assisted Extraction (MAE) method. The mechanism of action of this method is to use microwave energy to heat the solvents that come into contact with the sample. The problem is whether carrageenan can be extracted from the red algae Kapp [...] Read more.

Abstract PDF (1479 K) March 12, 2023 16 Downloads 172 Views DOI: 10.54647/physics140518

Open Access

Same maximum figure of merit ZT(=1), due to effects of impurity size and heavy doping, obtained in the n(p)-type degenerate InP-crystal

, at same reduced Fermi energy

and same minimum (maximum) Seebeck coefficient

, at which same

H. Van Cong

Abstract PDF (1439 K) February 26, 2023 13 Downloads 375 Views DOI: 10.54647/physics140529

Open Access

Same maximum figure of merit ZT(=1), due to effects of impurity size and heavy doping, obtained in the n(p)-type degenerate Si-crystal

at same reduced Fermi energy

and same minimum (maximum) Seebeck coefficient

, at which same

H. Van Cong

Abstract PDF (1440 K) February 26, 2023 10 Downloads 250 Views DOI: 10.54647/physics140524

Open Access

The High-Energy Positive Solar Particles Invading Earth with Contribution to the Mortality from Ischemic Heart Diseases?

Nikolay Takuchev

Abstract: Introduction: According to the results from several studies high-energy positive solar particles’ fluxes, invading Earth are correlated with mortality from ischemic heart diseases. According to statistics from World Health Organization (WHO), ischemic heart diseases are the first on the list of the 10 most frequent c [...] Read more.

Abstract PDF (1449 K) February 26, 2023 9 Downloads 205 Views DOI: 10.54647/physics140528

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Electroelastic Actuators for Nano- and Microdisplacement

by Sergey M. Afonin

SCIREA Journal of Physics

3057 Downloads 63176 Views

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