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2020

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Research Performance Of Engineering Colleges In Karnataka As Reflected In The Scopus Database, Gangadhar K C Dr., Nagaraja A Dr. Dec 2020

Research Performance Of Engineering Colleges In Karnataka As Reflected In The Scopus Database, Gangadhar K C Dr., Nagaraja A Dr.

Library Philosophy and Practice (e-journal)

This paper intends to assess the growth of research publications and citations of engineering colleges affiliated to Visvesvaraya Technological University (VTU), Belagavi based on Scopus database. It is attempted to analyze parameters like the growth of research output among rural and city colleges i.e. geographical distribution of publications, pattern of research communication, share of national and international collaboration across Karnataka and high productivity institutions and top highly published journals and cited papers.

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Information Needs And Use Of Non-Academic Staff In University Of Africa, Bayelsa State, Nigeria, Kolawole Ogunbodede, Smart E. Ambrose Mr. Dec 2020

Information Needs And Use Of Non-Academic Staff In University Of Africa, Bayelsa State, Nigeria, Kolawole Ogunbodede, Smart E. Ambrose Mr.

Library Philosophy and Practice (e-journal)

The paper examined the information needs and use of non-academic staff in University of Africa, Bayelsa State, Nigeria. The researchers adopted descriptive survey design. The population of the study comprised of 100 non-academic staff out of which 57 were randomly selected. Four (4) research questions guided this study. Data was collected using the questionnaire. Data was analyzed with descriptive statistics such as frequency count and simple percentage. The findings revealed that non-academic staff had diverse information needs based on their work roles and they consult multiple information sources to meet their information needs. Regarding the purpose for using information, it …

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A Bibliometric Survey On Ultra Wideband Multiple Input Multiple Output Antenna With Improved Isolation, Laxmikant K. Shevada, Hema D. Raut, Rajeshwari R. Malekar, Amruta S. Dixit, Sumit Kumar Dec 2020

A Bibliometric Survey On Ultra Wideband Multiple Input Multiple Output Antenna With Improved Isolation, Laxmikant K. Shevada, Hema D. Raut, Rajeshwari R. Malekar, Amruta S. Dixit, Sumit Kumar

Library Philosophy and Practice (e-journal)

Ultra wideband (UWB) technology remains a viable choice for very high speed data communication in future applications involving large bandwidth. For boosting the data communication efficiency and to mitigate the multipath fading issue faced by UWB system with existing narrowband systems, Multiple Input Multiple Output (MIMO) antenna system is used along with UWB. Mutual coupling which must be smaller in value plays a vital role in deciding the efficiency of MIMO antenna and hence it becomes as important aspect. The mutual coupling reduction techniques of various UWB MIMO antennas are surveyed in this bibliometric paper. The bibliometric survey aims to …

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Two Approaches To Measure Trace Metals Fluxes At The Sediment–Water Interface: Sediment Porewater Profile And Benthic Incubation, Harmesa, Wahyudi Johan Dec 2020

Two Approaches To Measure Trace Metals Fluxes At The Sediment–Water Interface: Sediment Porewater Profile And Benthic Incubation, Harmesa, Wahyudi Johan

ASEAN Journal on Science and Technology for Development

The biogeochemical cycle of trace metals is very likely affected by the global change in the ocean, especially due to the increasing of sea surface temperature and acidity. Thus, assessing biogeochemical cycle of trace metals will beneficial in elucidating the potential impact of climate change as well as ocean acidification. The assessment of the biogeochemical cycle of trace metals can be performed by measuring trace metals fluxes crossing the sediment–water interface. The main challenge in this measurement is the difficulty of measuring metal concentrations at trace levels due to either physical factors or biological factors that can affect the total …

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Sea Level Rise In Indonesia: The Drivers And The Combined Impacts From Land Subsidence, Triana Karlina, Wahyudi A'An Johan Dec 2020

Sea Level Rise In Indonesia: The Drivers And The Combined Impacts From Land Subsidence, Triana Karlina, Wahyudi A'An Johan

ASEAN Journal on Science and Technology for Development

Sea level changes play an important role as an indicator of climate change. However, without climate change, the sea level itself shows strong regional patterns, both in space and time, that could deviate significantly from global averages. The spatial variability of sea level changes in Indonesia can be divided based on its drivers, i.e., climatic and seasonal weather-driven and non-climatic and geological-driven. Seasonally, the sea level in Indonesia is generally high in northwest monsoon and low in southeast monsoon. Nevertheless, there is a possibility of extreme natural phenomenon influences that generate anomalies and a thermosteric process that also affects the …

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Establishing An Ocean Acidification Monitoring System For The Tropical Waters Of Indonesia Facing Regional Climate Variability, Prayitno Hanif Budi, Puspitasari Rachma, Jandang Suppakarn, Triana Karlina, Taufiqurrahman Edwards, Lestari, Afdal, Wulandari, Harmesa, Meirinawati Hanny, Lastrini Suci, Kaisupy Muhamad Taufik, Wahyudi A'An Johan Dec 2020

Establishing An Ocean Acidification Monitoring System For The Tropical Waters Of Indonesia Facing Regional Climate Variability, Prayitno Hanif Budi, Puspitasari Rachma, Jandang Suppakarn, Triana Karlina, Taufiqurrahman Edwards, Lestari, Afdal, Wulandari, Harmesa, Meirinawati Hanny, Lastrini Suci, Kaisupy Muhamad Taufik, Wahyudi A'An Johan

ASEAN Journal on Science and Technology for Development

The emission of greenhouse gases, including high CO2 and other materials, initiates global warming and climate change. Atmospheric CO2 that affects the carbonate system of seawater causes ocean acidification (OA). OA affects marine organisms directly, as well as humans economically and ecologically. Considering the high impact of OA and following the United Nations' Sustainable Development Goals, systematic research and monitoring of OA is necessary in Indonesia, whose seas play an important role in this emerging phenomenon. This review discusses the urgency of OA monitoring systems and suggests carbonate system monitoring, as well as carbon biogeochemistry. OA significantly affects marine production …

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The Effect Of Variable Climatic Conditions On Animal Production In A Semi‐Arid Communal Farming System In South Africa, M. Naidoo, M. T. Hoffman, Nicky Allsopp Dec 2020

The Effect Of Variable Climatic Conditions On Animal Production In A Semi‐Arid Communal Farming System In South Africa, M. Naidoo, M. T. Hoffman, Nicky Allsopp

IGC Proceedings (1977-2023)

No abstract provided.

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Comparative Performance Of Friesian‐Sahiwal Crossbreds And Sahiwal Steers On Naivasha Stargrass In Kenya, W. B. Muhuyi, T. Muasya, S. N. Ole Sinkeet Dec 2020

Comparative Performance Of Friesian‐Sahiwal Crossbreds And Sahiwal Steers On Naivasha Stargrass In Kenya, W. B. Muhuyi, T. Muasya, S. N. Ole Sinkeet

IGC Proceedings (1977-2023)

No abstract provided.

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Economical Analysis Of Sheep Meat Production Systems In Tropical And Temperate Pastures Of The Southern Region Of Brazil, C. S. De Barros, Alda L. G. Monteiro, Cesar H. E. C. Poli, J. R. Dittrich, Maria Angela M. Fernandes Dec 2020

Economical Analysis Of Sheep Meat Production Systems In Tropical And Temperate Pastures Of The Southern Region Of Brazil, C. S. De Barros, Alda L. G. Monteiro, Cesar H. E. C. Poli, J. R. Dittrich, Maria Angela M. Fernandes

IGC Proceedings (1977-2023)

No abstract provided.

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Changing Farm Livestock And Grassland Management To Improve Profitability And Sustainability In Sunan County, Gansu Province, China, Z. F. Ma, J. P. Wu, R. Jones, David L. Michalk, David R. Kemp, T. Takahashi Dec 2020

Changing Farm Livestock And Grassland Management To Improve Profitability And Sustainability In Sunan County, Gansu Province, China, Z. F. Ma, J. P. Wu, R. Jones, David L. Michalk, David R. Kemp, T. Takahashi

IGC Proceedings (1977-2023)

No abstract provided.

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Application Of Ultrafast And Co2 Lasers For Cutting Waveguides, Moez Haque, Saeid Rezaei, Victor Isbrucker Dec 2020

Application Of Ultrafast And Co2 Lasers For Cutting Waveguides, Moez Haque, Saeid Rezaei, Victor Isbrucker

Defensive Publications Series

Techniques for the cutting of waveguides from patterned glass wafers are described. Translation of an ultrafast laser beam across a wafer is performed to mark the wafer by forming a filament curtain that is aligned to the waveguide edge profile. Chucks are used to secure the wafer during marking and subsequent separation of the waveguides. The chucks include vacuum ports placed at selected locations for debris control around the cut edges. After marking, thermal shock is induced by CO2 laser absorption for breakage along the filament curtain and waveguide separation (singulation). An optical imaging system is used to calibrate the …

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Impact Of Study Anxiety Sources On The Grade Achievements Of University Students, Muhammad Shahzad Shahzad Chaudhry Dr., Ayman Akbar Joya Ms. Dec 2020

Impact Of Study Anxiety Sources On The Grade Achievements Of University Students, Muhammad Shahzad Shahzad Chaudhry Dr., Ayman Akbar Joya Ms.

Library Philosophy and Practice (e-journal)

Anxiety is a common phenomenon among all kind of learners and university students. Study anxiety has been recognized by students of all educational institutes as they face new atmosphere and people in the campus. The objective of this study is to recognize the sources of study anxiety and then determine the impact of these sources on the grade achievements among university students. The results showed that exam anxiety, subject anxiety, language anxiety, library anxiety, social anxiety and presentation anxiety are sources of study anxiety. All of the sources have a great impact on grade achievements except presentation anxiety. The results …

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Algorithm And Application For Iot Based Real Time Patient Monitoring System, Hakimjon Zaynidinov, Sarvar Maxmudjonov, Ruzikulov R.A. Dec 2020

Algorithm And Application For Iot Based Real Time Patient Monitoring System, Hakimjon Zaynidinov, Sarvar Maxmudjonov, Ruzikulov R.A.

Bulletin of TUIT: Management and Communication Technologies

Among the applications that Internet of Things (IoT) facilitated to the world, Healthcare applications are most important. In general, IoT has been widely used to interconnect the advanced medical resources and to offer smart and effective healthcare services to the people. The advanced sensors can be either worn or be embedded into the body of the patients, so as to continuously monitor their health. The information collected in such manner, can be analyzed, aggregated and mined to do the early prediction of diseases. The processing algorithms assist the physicians for the personalization of treatment and it helps to make the …

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Impurity-Impurity Interaction In Silicon Doped With Manganese And Nickel, Sh. Utamuradova, Sh. Yusupova, K. Fayzullaev Dec 2020

Impurity-Impurity Interaction In Silicon Doped With Manganese And Nickel, Sh. Utamuradova, Sh. Yusupova, K. Fayzullaev

Euroasian Journal of Semiconductors Science and Engineering

Using the radioactive technique and capacitive spectroscopy, it was found that the doping of Si with manganese from the layer on the surface leads to a decrease in both the total concentration of Ni and the concentration of electroactive Ni atoms. The Mn layer deposited on the Si surface acts as a getter for the Ni impurity. It is shown that with successive doping of Ni and then Mn, and simultaneous doping of silicon with Mn and Ni, only the levels characteristic of Mn are observed.

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Some Thermoelectric Properties Of Heteroepitaxial Structures Of Si-Ge / Si Doped With Titanium, Sh. Kuchkanov, Kh. Ashurov, B. Abdurahmanov Dec 2020

Some Thermoelectric Properties Of Heteroepitaxial Structures Of Si-Ge / Si Doped With Titanium, Sh. Kuchkanov, Kh. Ashurov, B. Abdurahmanov

Euroasian Journal of Semiconductors Science and Engineering

The current flow and the appearance of thermoelectric power on uniformly heated p-n structures containing films heavily doped with titanium on the Si-Ge surface were detected under the conditions of a “thermal bath”. The results are discussed from the standpoint of the manifestation of the thermovoltaic effect, that is, the generation of charge carriers due to the absorption of subband photons with the participation of deep energy levels due to both defects in Si-Ge films and an admixture of titanium.

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Statistics Of Recombination Of Nonequilibrium Carriers For Semiconductors With Pair Recombination Complexes, A. Leyderman, A. Uteniyazov, M. Uktamova, M. Nsanbaev Dec 2020

Statistics Of Recombination Of Nonequilibrium Carriers For Semiconductors With Pair Recombination Complexes, A. Leyderman, A. Uteniyazov, M. Uktamova, M. Nsanbaev

Euroasian Journal of Semiconductors Science and Engineering

The recombination rate of non-equilibrium carriers is calculated for a semiconductor model with a pair recombination complex, the activity of which decreases during excitation. It is shown that the dependence of the electron capture coefficient on the first level on the filling of the second level leads to a decrease in the recombination rate.

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Tenzostimulated Current Relaxation In Surface-Barrier Diode Structures, O. Mamatkarimov, O. Khimmatkulov, I. Tursunov Dec 2020

Tenzostimulated Current Relaxation In Surface-Barrier Diode Structures, O. Mamatkarimov, O. Khimmatkulov, I. Tursunov

Euroasian Journal of Semiconductors Science and Engineering

The effect of pulsed external all-round pressure on the I–V characteristics of surface-barrier diode structures is investigated. It is shown that under the adiabatic regime of exposure to HCV, the generated heat leads to short-term heating of the diode, as a result of which current relaxation is observed, which correlates with a change in temperature. The contribution of temperature to the change in current decreases with increasing applied forward voltage.

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Application Of A Slm Software For A Computer-Synthesized Hologram, A. Jeenbekov, J. Ismailov, K. Jumaliev Dec 2020

Application Of A Slm Software For A Computer-Synthesized Hologram, A. Jeenbekov, J. Ismailov, K. Jumaliev

Euroasian Journal of Semiconductors Science and Engineering

We consider a method of using software for a spatial light modulator (SLM), using the method of computer- synthesis of holograms to generate an input image into a holographic interference picture and output to a holographic projection system that transfers the image to the plane of a photosensitive medium.

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Semiconductor Chalcogenide Films For Recording Holographic Information., M. Bekchanova, T. Azamatov, A. Baxramov Dec 2020

Semiconductor Chalcogenide Films For Recording Holographic Information., M. Bekchanova, T. Azamatov, A. Baxramov

Euroasian Journal of Semiconductors Science and Engineering

The possibilities of using chalcogenide glassy semiconductor films of the system AsSe for recording holographic information are considered. A chart of the results of a study of diffraction efficiency as a function of exposure time is given.

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Features Of Epitaxy Of The Layers Of Solid Solutions (Insb)1-X(Sn2)X On Gaas Substrates, A. Saidov, Sh. Usmonov, U. Asatova Dec 2020

Features Of Epitaxy Of The Layers Of Solid Solutions (Insb)1-X(Sn2)X On Gaas Substrates, A. Saidov, Sh. Usmonov, U. Asatova

Euroasian Journal of Semiconductors Science and Engineering

The possibilities of the formation of the molecular substitution solid solution (InSb)1-x(Sn2)x are investigated. Solid solutions (InSb)1-x(Sn2)x were grown from an indium melt-solution on GaAs (100) substrates. It was shown that indium antimonide in the In solution at temperatures below the melting temperature is in the form of InSb molecules; it is the necessary condition for obtaining the molecular substitution solid solution.

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Development Of Corrective Structural Schemes For Semiconductor Converters Temperature And Humidity, A. Rakhmanov, S. Kuznetsov, S. Rakhmatullaev Dec 2020

Development Of Corrective Structural Schemes For Semiconductor Converters Temperature And Humidity, A. Rakhmanov, S. Kuznetsov, S. Rakhmatullaev

Euroasian Journal of Semiconductors Science and Engineering

Corrective block diagrams for semiconductor temperature and humidity converters using new elements and devices of modern microelectronics have been developed.

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Influence Of Technological Modes Of Ion Implantation And Following Annealing On The Profile Of Distribution Of Implanted Atoms In Si (111) And Si (100), S. Nasriddinov, Z. Tursunmetova, J. Khuzhaniyozov, S. Abraeva Dec 2020

Influence Of Technological Modes Of Ion Implantation And Following Annealing On The Profile Of Distribution Of Implanted Atoms In Si (111) And Si (100), S. Nasriddinov, Z. Tursunmetova, J. Khuzhaniyozov, S. Abraeva

Euroasian Journal of Semiconductors Science and Engineering

Using quantitative Auger spectroscopy, taking into account the inverse elemental Auger sensitivity factors with matrix corrections, we calculated the distribution profiles of Li atoms in Si (111) introduced by ion implantation. It was found that at an ion energy of 1 keV in the surface region of Si (111), lithium monosilicide 15 nm thick is formed.

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New Thermoelectric Materials, G. Abdurakhmanov, K Mukimov, A Esbergenova, S. Mamatqulova Dec 2020

New Thermoelectric Materials, G. Abdurakhmanov, K Mukimov, A Esbergenova, S. Mamatqulova

Euroasian Journal of Semiconductors Science and Engineering

Recent achievements in developing of thermoelectric materials of higher efficiency are reviewed. It is shown that these achievements are based on decreasing of thermal conductivity down to values typical for materials having disordered or nanoscale structure. On the other hand these achievements demonstrate that there is no any principal limit for efficiency of thermoelectric devices beyond the Carnot formula.

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The Method For Determining The Temperature Of Solar Cells In A Flat Photovoltaic/Thermal System, O. Tukfatullin, R. Muminov, I. Rakhmatullaev, I. Abdullaev Dec 2020

The Method For Determining The Temperature Of Solar Cells In A Flat Photovoltaic/Thermal System, O. Tukfatullin, R. Muminov, I. Rakhmatullaev, I. Abdullaev

Euroasian Journal of Semiconductors Science and Engineering

In the framework of the theory of heat transfer processes in flat solar collectors, a semiempirical method for calculating the temperature of solar cells in a photovoltaic thermal system is considered.

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Obtaining Fullerene-Containing Thin Films From C70 Nanoparticles, U. Makhmanov, A. Kokhkharov, S. Bakhramov Dec 2020

Obtaining Fullerene-Containing Thin Films From C70 Nanoparticles, U. Makhmanov, A. Kokhkharov, S. Bakhramov

Euroasian Journal of Semiconductors Science and Engineering

The morphological features and exact dimensional characteristics of fullerene-containing nanoaggregates and thin films by electron and atomic force microscopy are established. In the process of cooling the C70 solution from ~30°C to ~20°C, fractal spherical C70 nanoaggregates with diameters of ~150÷200 nm are formed on the surface of the cover glass in the solution.It was found that a fullerene-containing film obtained in the process of solvent evaporation from the volume of a drop of C70 solution on a horizontally located substrate (heated to ~33°C) is completely crystalline and nanostructured.

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The Influence Of The Spectrum And The Level Of Illumination On The Lifetime Of Charge Carriers In Cigs Solar Cells, R. Kabulov, F. Akbarov Dec 2020

The Influence Of The Spectrum And The Level Of Illumination On The Lifetime Of Charge Carriers In Cigs Solar Cells, R. Kabulov, F. Akbarov

Euroasian Journal of Semiconductors Science and Engineering

The lifetime of non-equilibrium photo generated charge carriers in the thin-film copper indium gallium selenide CIGS-based solar cell was determined under illumination with monochromatic radiation of different wavelengths (λ ≈ 395 nm, 460 nm, 630 nm, 900 nm). It was found that the lifetime of nonequilibrum charge carriers generated charge carriers depends on the absorption coefficient and radiation intensity.

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Third-Generation Solar Cells Based On The Effect Of Multi-Exciton Generation In Perovskite, B. Oksengendler, F. Kamoliddinov, M. Marasulov Dec 2020

Third-Generation Solar Cells Based On The Effect Of Multi-Exciton Generation In Perovskite, B. Oksengendler, F. Kamoliddinov, M. Marasulov

Euroasian Journal of Semiconductors Science and Engineering

The electron-ion processes in the solar cell combining the properties of perovskite and the MEG effect are considered. Attention is focused on the role of a polyatomic organic molecule introducing new features by its phonon spectrum into nonradiative transitions.

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Novel Engineered Materials For Integral Photo Elements, N. Zikrillayev, E. Saitov Dec 2020

Novel Engineered Materials For Integral Photo Elements, N. Zikrillayev, E. Saitov

Euroasian Journal of Semiconductors Science and Engineering

The research article reports the phenomenon of self-organized assembly of doped nickel atoms in silicon sample at certain thermodynamic conditions. The author reveal that the concentration and profile of distribution of micro-scale particles in the silicon matrix is essentially uniform. It was found, that in the course of additional annealing the self-organization of micro-particles of impurity eventually occurs

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Change Of Electrophysical Properties Of The Surface Si (111) And Si (100) In The Process Of Ion Implantation And Next Annealing, A. Rysbaev, B. Igamov, M. Khudayberdieva, A. Raximov Dec 2020

Change Of Electrophysical Properties Of The Surface Si (111) And Si (100) In The Process Of Ion Implantation And Next Annealing, A. Rysbaev, B. Igamov, M. Khudayberdieva, A. Raximov

Euroasian Journal of Semiconductors Science and Engineering

The change in the electrical properties of the Si (111) and Si (100) surfaces during ion implantation and subsequent annealing was studied. The possibilities of controlling the electrophysical properties of the surface layers of Si (111) and Si (100) by the implantation of ions of alkaline and alkaline-earth elements are analyzed. Some electrophysical properties of semiconductors containing p- and n-structures and the possibilities of their application in electronics are discussed.

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Innovative Methods For Distance Learning, Saodat Melikuzievna Tuychieva, Gulsanam Abdullaevna Nematova, Mukum Uralovich Arzikulov Dec 2020

Innovative Methods For Distance Learning, Saodat Melikuzievna Tuychieva, Gulsanam Abdullaevna Nematova, Mukum Uralovich Arzikulov

Central Asian Journal of Education

This article is devoted to the effective use of innovative methods in the process of interaction between higher education institutions. It focuses on distance learning using pedagogical training and online classes

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