Autor: Kumar, Rakesh - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Design and analysis of MOS based Magnetic Field Sensor
Autorzy:: Kumar, Rakesh
Powiązania:: https://bibliotekanauki.pl/articles/1075557.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: CMOS Technology
Hall Effect
Lorentz force
MagFET device
Magnetic sensor
Opis:: Magnetic sensors are widely used in various applications such as consumer electronic products (mobile phones, laptops), biomedical applications (brain function mapping), navigation, vehicle detection, mineral prospecting, non-contact switching (keyboard), contactless temperature measurement, wireless sensor network etc. Sensitivity of MagFET devices towards magnetic field, depends on the shape, dimensions VGS, VDS. In this paper we have measured effect of Physical design of gate on sensitivity of MagFET.
Źródło:: World Scientific News; 2019, 121; 42-47
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Application of goal programming in the textile apparel industry to resolve production planning problems : a meta-goal programming technique using weights
Autorzy:: Malik, Zahid Amin
Kumar, Rakesh
Pathak, Govind
Roy, Haridas
Powiązania:: https://bibliotekanauki.pl/articles/2175839.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: meta-goal programming
weighted goal programming
multi-objective decision making
asset allocation
textile sector
sensitivity analysis
Opis:: In the present business environment, rapidly developing technology and the competitive world market pose challenges to the available assets of industries. Hence, industries need to allocate and use available assets at the optimum level. Thus, industrialists must create a good decision plan to guide their performance in the production sector. As a result, the present study applies the Meta-Goal Programming technique to attain several objectives simultaneously in the textile production sector. The importance of this study lies in pursuing different objectives simultaneously, which has been almost ignored till now. The production scheduling problem in a textile firm is used to illustrate the practicability and mathematical validity of the suggested approach. Analysis of the results obtained demonstrates that the solution met all three meta-goals with some original goals being met partially. An analysis of the sensitivity of the approach to the weights of the preferences was conducted.
Źródło:: Operations Research and Decisions; 2022, 32, 2; 74--88
2081-8858
2391-6060
Pojawia się w:: Operations Research and Decisions
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Core-Shell Mechanocomposites of Drugs with Inorganic Oxides and Hydroxides
Autorzy:: Shakhtshneider, T.
Myz, S.
Boldyreva, E.
Nizovskii, A.
Kumar, Rakesh
Powiązania:: https://bibliotekanauki.pl/articles/1375599.pdf
Data publikacji:: 2014-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 62.25.-g
Opis:: The composites of piroxicam and meloxicam with gamma-alumina, aluminium hydroxides (gibbsite and boehmite), alpha and gamma polymorphs of iron(III) oxide having different surface area and morphology were prepared by planetary ball-milling. It has been shown that the initial state of the excipient (specific surface area, particle size and morphology) had a pronounced effect on the formation of the core-shell composites with the drugs and their properties. The X-ray diffraction patterns and IR spectra measured for co-milled samples as well as X-ray photoelectron spectroscopy studies gave evidence that the components of the mixtures interacted with each other and became amorphous, as composites were formed. The drug release from the composites was different as compared with pure drugs, meloxicam and piroxicam behaving differently that can be explained by formation of strong or weak bonds with the active sites of the carriers. In the case of mechanocomposites, the drugs dissolved quickly due to high surface of organic phase in the core-shell composites. The high-porous carriers can serve as the sorbents for the drugs in solution.
Źródło:: Acta Physica Polonica A; 2014, 126, 4; 1019-1024
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Mechanochemical Preparation of Organic-Inorganic Hybrid Materials of Drugs with Inorganic Oxides
Autorzy:: Shakhtshneider, T.
Myz, S.
Dyakonova, M.
Boldyrev, V.
Boldyreva, E.
Nizovskii, A.
Kalinkin, A.
Kumar, Rakesh
Powiązania:: https://bibliotekanauki.pl/articles/1503409.pdf
Data publikacji:: 2011-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 62.25.-g
Opis:: The nanocomposites of piroxicam and meloxicam with alumina were obtained by ball-milling as a result of distribution of the drugs at the surface of oxide with formation of the stable composites. The observed changes in the IR spectra of the ball-milled mixtures suggested the interaction of the drugs with the alumina active surface sites. The functional groups in molecules of piroxicam and meloxicam involved into formation of bonds between the drugs and the surface of the oxide were determined, they are amide, sulfate, enol groups, and pyridyl / thiazolyl nitrogen atoms. It appears that the formation of the new bonds at the contacts of particles in the composite leads to the stabilization of the drugs in metastable state inhibiting their transformation into initial crystalline form.
Źródło:: Acta Physica Polonica A; 2011, 120, 2; 272-278
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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