ZnCdSeTe Semiconductor Compounds: Preparation and Properties

2011 ◽  
Vol 1341 ◽  
Author(s):  
Vello Valdna ◽  
Maarja Grossberg ◽  
Jaan Hiie ◽  
Urve Kallavus ◽  
Valdek Mikli ◽  
...  
Keyword(s):  
High Performance ◽  
Radiation Detectors ◽  
Thermal Treatments ◽  
Crystal Surfaces ◽  
Quaternary Compound ◽  
X Ray ◽  
Host Materials ◽  
Semiconductor Compounds ◽  
And Performance

ABSTRACTGroup II-VI narrow band gap compounds CdTe ZnCdTe and CdSeTe are known as the most suitable semiconductor materials for the room temperature gamma- and X-ray radiation detectors. In this work we investigated electronic properties of a quaternary compound ZnCdSeTe. Cl Cu Pr Er and oxygen doped host materials were synthesized from the grinded mixture of 6N purity ZnTe CdTe and CdSe by the help of CdCl2 flux. Precautions were applied to achieve an uniform doping and high quality of the crystal surfaces. Residue phases after the thermal treatments were removed by the help of a vacuum annealing. It was found that Zn increases a substitutional solubility of dopants in ZnCdSeTe and thus promotes optoelectronic properties of the ZnCdSeTe alloy. Cl substitutes Te whereas Cu and rare earth elements substitute Zn in ZnCdSeTe. Fabricated polycrystalline samples showed a high performance from NIR via VIS and UV to X-ray band. High stability good linearity and performance of samples was measured under X-ray excitation of Cu Kα 1.54056 Å at 40 kV.

scholarly journals Performance Measures of Different Gate Oxide Materials in Gate All Around Fet

2020 ◽  
Vol 9 (2) ◽  
pp. 23-25
Keyword(s):  
High Performance ◽  
Field Effect Transistors ◽  
Gate Oxide ◽  
Oxide Semiconductor ◽  
Oxide Materials ◽  
Performance Limits ◽  
Short Channel ◽  
Advanced Technique ◽  
And Performance

The classical planar Metal Oxide Semiconductor Field Effect Transistors (MOSFET) is fabricated by oxidation of a semiconductor namely Silicon. In this generation, an advanced technique called 3D system architecture FETs, are introduced for high performance and low power quality of devices. Based on the limitations of Short Channel Effect (SCE), Silicon (Si) FET cannot be scaled under 10nm. Hence various performing measures like methods, principles, and geometrics are done to upscale the semiconductor. CMOS using alternate channel materials like GE and III-Vs on substrates is a highly anticipated technique for developing nanowire structures. By considering these issues, in this paper, we developed a simulation model that provides accurate results basing on Gate layout and multi-gate NW FET's so that the scaling can be increased few nanometers long and performance limits gradually increases. The model developed is SILVACO that tests the action of FET with different gate oxide materials.

scholarly journals Quality Maintenance and Monitoring using Azure CI pipeline and .Net Technologies

2020 ◽  
pp. 642-648
Author(s):  
Ishwarya S ◽  
S. Kuzhalvaimozhi
Keyword(s):  
High Performance ◽  
Test Driven Development ◽  
Quality Maintenance ◽  
Continuous Integration ◽  
Agile Methodology ◽  
Annual Basis ◽  
Continuous Delivery ◽  
And Performance ◽  
Software Development Practices

<p>The paper is about how the application is maintained and monitored using Azure CI pipeline. Maintaining and monitoring the quality of the software plays an important role in company’s growth and performance. This is achieved using DevOps. Few years back agile methodology was playing a major role in the industry, software were deployed in monthly, quarterly or annual basis, which is time consuming. However, now industries are moving towards DevOps methodology where in the software deployed multiple times a day. This methodology provides the organization to constantly and reliably add new features and automatically deploy them across various platforms or environment in order to gain high performance and quality assurance products. Continuous integration and Continuous delivery/ Continuous deployment are the pillars of DevOps. Continuous integration, Continuous delivery and Continuous deployment are the continuous software development practices of industry. By automating the build, test and deployment of software, CI/CD bridges the space between development and operation teams. This paper also concentrates on how the Test Driven Development features of .Net technologies supports the quality maintenance and monitoring of the application.</p>

scholarly journals Parameters based on X-ray images to assess the physical and physiological quality of Leucaena leucocephala seeds

2018 ◽  
Vol 42 (6) ◽  
pp. 643-652 ◽  
Author(s):  
André Dantas de Medeiros ◽  
Joyce de Oliveira Araújo ◽  
Manuel Jesús Zavala León ◽  
Laércio Junio da Silva ◽  
Denise Cunha Fernandes dos Santos Dias
Keyword(s):  
Leucaena Leucocephala ◽  
High Performance ◽  
Principal Component ◽  
Automated Analysis ◽  
Radiographic Images ◽  
X Ray ◽  
Physiological Quality ◽  
Non Destructive ◽  
Do So

ABSTRACT Non-destructive and high performance analyses are highly desirable and important for assessing the quality of forest seeds. The aim of this study was to relate parameters obtained from semi-automated analysis of radiographs of Leucaena leucocephala seeds to their physiological potential by means of multivariate analysis. To do so, seeds from five lots collected from parent trees from the region of Viçosa, MG, Brazil, were used. The study was carried out through analysis of radiographic images of seeds, from which the percentage of damaged seeds (predation and fungi), and measurements of area, perimeter, circularity, relative density, and integrated density of the seeds were obtained. After the X-ray test, the seeds were tested for germination in order to assess variables related to seed physiological quality. Multivariate statistics were applied to the data generated, with use of principal component analysis (PCA). X-ray testing allowed visualization of details of the internal structure of seeds and differences regarding density of seed tissues. Semi-automated analysis of radiographic images of Leucaena leucocephala seeds provides information on seed physical characteristics and generates parameters related to seed physiological quality in a simple, fast, and inexpensive manner.

scholarly journals The life of high-level athletes: The challenge of high performance against the time constraint

2016 ◽  
Vol 53 (2) ◽  
pp. 234-249 ◽  
Author(s):  
Fabrice Burlot ◽  
Rémi Richard ◽  
Helene Joncheray
Keyword(s):  
High Performance ◽  
Elite Athletes ◽  
Time Constraint ◽  
Sport Expertise ◽  
Pace Of Life ◽  
And Performance ◽  
High Level ◽  
State Of Tension ◽  
Sporting Performance

The conditions for high performance have changed considerably over the last few years. Athletes must spend more time training and competing, devote a lot of time to mental, physical and nutritional professionals and continue to respond to some constraints such as studying, spending time with their families, friends and quality of life. In this context and based on the work of Rosa, we wonder about the capacity of elite athletes to combine all these constraints, namely to manage the acceleration in their pace of life, in order to be able to achieve always more and better in the same time unit. To address this issue, we interviewed 42 French high-level athletes who train at the National Institute of Sport, Expertise and Performance (INSEP). Results show that to suit their goals, athletes implement arrangement and adjustment strategies aimed at making the time they have wholly useful and efficient. This time constraint puts athletes in a perpetual state of tension, on the verge of a good or poor life. The paper shows how the question of time, and particularly the acceleration of pace of life, is vital for modern sporting performance.

scholarly journals Massively multi-user online platform for large-scale applications

2021 ◽  
Author(s):  
Allen Yen-Cheng Yu
Keyword(s):  
Grid Computing ◽  
High Performance ◽  
Large Scale ◽  
Distributed Applications ◽  
Service Architecture ◽  
Online Application ◽  
Online Platform ◽  
Massively Multiplayer Online Game ◽  
And Performance

Many large-scale online applications enable thousands of users to access their services simultaneously. However, the overall service quality of an online application usually degrades when the number of users increases because, traditionally, centralized server architecture does not scale well. In order to provide better Quality of Service (QoS), service architecture such as Grid computing can be used. This type of architecture offers service scalability by utilizing heterogeneous hardware resources. In this thesis, a novel design of Grid computing middleware, Massively Multi-user Online Platform (MMOP), which integrates the Peer-to-Peer (P2P) structured overlays, is proposed. The objectives of this proposed design are to offer scalability and system design flexibility, simplify development processes of distributed applications, and improve QoS by following specified policy rules. A Massively Multiplayer Online Game (MMOG) has been created to validate the functionality and performance of MMOP. The simulation results have demonstrated that MMOP is a high performance and scalable servicing and computing middleware.

scholarly journals Massively multi-user online platform for large-scale applications

2021 ◽  
Author(s):  
Allen Yen-Cheng Yu
Keyword(s):  
Grid Computing ◽  
High Performance ◽  
Large Scale ◽  
Distributed Applications ◽  
Service Architecture ◽  
Online Application ◽  
Online Platform ◽  
Massively Multiplayer Online Game ◽  
And Performance

Many large-scale online applications enable thousands of users to access their services simultaneously. However, the overall service quality of an online application usually degrades when the number of users increases because, traditionally, centralized server architecture does not scale well. In order to provide better Quality of Service (QoS), service architecture such as Grid computing can be used. This type of architecture offers service scalability by utilizing heterogeneous hardware resources. In this thesis, a novel design of Grid computing middleware, Massively Multi-user Online Platform (MMOP), which integrates the Peer-to-Peer (P2P) structured overlays, is proposed. The objectives of this proposed design are to offer scalability and system design flexibility, simplify development processes of distributed applications, and improve QoS by following specified policy rules. A Massively Multiplayer Online Game (MMOG) has been created to validate the functionality and performance of MMOP. The simulation results have demonstrated that MMOP is a high performance and scalable servicing and computing middleware.

A Mini Review on Carbon Molecular Sieve Membrane for Oxygen Separation

2020 ◽  
Vol 4 (1) ◽  
pp. 23-35
Author(s):  
Fatin Nurwahdah Ahmad ◽  
Norazlianie Sazali ◽  
Mohd Hafiz Dzafran Othman
Keyword(s):  
Molecular Sieve ◽  
High Performance ◽  
Separation Performance ◽  
Carbon Membrane ◽  
Carbon Molecular Sieve ◽  
Carbon Membranes ◽  
Advantages And Disadvantages ◽  
Polymer Precursors ◽  
And Performance

Membrane-based technology has proved its practicality in gas separation through its performance. Various type of membranes has been explored, showing that each type of them have their own advantages and disadvantages. Polymeric membranes have been widely used to separate O2/N2, however, its drawbacks lead to the development of carbon molecular sieve membrane. Carbon molecular sieve membranes have demonstrated excellent separation performance for almost similar kinetic diameter molecules such as O2/N2. Many polymer precursors can be used to produce carbon molecular sieve membrane through carbonization process or also known as heat treatment. This paper discusses the variety of precursors and carbonization parameters to produce high quality and performance of carbon molecular sieve membranes.  This paper covers the evaluation in advancement and status of high-performance carbon membrane implemented for separating gas, comprising the variety of precursor materials and the fabrication process that involve many different parameters, also analysis of carbon membranes properties in separating various type of gas having high demand in the industries. The issues regarding the current challenges in developing carbon membrane and approaches with the purpose of solving and improving the performance and applications of carbon membrane are included in this paper. Also, the advantages of the carbon membrane compared to other types of membranes are highlighted. Observation and understanding the variables affecting the quality of membrane encourage the optimization of conditions and techniques in producing high-performance membrane.

Effects of dislocations and sub-grain boundaries on X-ray response maps of CdZnTe radiation detectors

2011 ◽  
Vol 1341 ◽  
Author(s):  
A. Hossain ◽  
A. E. Bolotnikov ◽  
G. S. Camarda ◽  
Y. Cui ◽  
R. Gul ◽  
...  
Keyword(s):  
Grain Boundaries ◽  
High Spatial Resolution ◽  
Radiation Detectors ◽  
National Synchrotron Light Source ◽  
X Ray ◽  
Response Mapping ◽  
Mapping System ◽  
Te Inclusions ◽  
Synchrotron Light

ABSTRACTThe imperfect quality of CdZnTe (CZT) crystals for radiation detectors seriously diminishes their suitability for different applications. Dislocations and other dislocation-related defects, such as sub-grain boundaries and dislocation fields around Te inclusions, engender significant charge losses and, consequently, cause fluctuations in the detector’s output signals, thereby hindering their spectroscopic responses. In this paper, we discuss our results from characterizing CZT material by using a high-spatial-resolution X-ray response mapping system at BNL’s National Synchrotron Light Source. In this paper, we emphasize the roles of these dislocation-related defects and their contributions in degrading the detector’s performance. Specifically, we compare the effects of the sub-grain- and coherent twin-boundaries on the X-ray response maps.

scholarly journals Ligand assisted growth of perovskite single crystals with low defect density

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Ye Liu ◽  
Xiaopeng Zheng ◽  
Yanjun Fang ◽  
Ying Zhou ◽  
Zhenyi Ni ◽  
...  
Keyword(s):  
Single Crystals ◽  
High Performance ◽  
Defect Density ◽  
Solution Process ◽  
Detection Sensitivity ◽  
Crystal Surfaces ◽  
Ion Migration ◽  
X Ray ◽  
Metal Halide Perovskite ◽  
Perovskite Crystal

AbstractA low defect density in metal halide perovskite single crystals is critical to achieve high performance optoelectronic devices. Here we show the reduction of defect density in perovskite single crystals grown by a ligand-assisted solution process with 3‐(decyldimethylammonio)‐propane‐sulfonate inner salt (DPSI) as an additive. DPSI ligands anchoring with lead ions on perovskite crystal surfaces not only suppress nucleation in solution, but also regulate the addition of proper ions to the growing surface, which greatly enhances the crystal quality. The grown CH3NH3PbI3 crystals show better crystallinity and a 23-fold smaller trap density of 7 × 1010 cm−3 than the optimized control crystals. The enhanced material properties result in significantly suppressed ion migration and superior X-ray detection sensitivity of CH3NH3PbI3 detectors of (2.6 ± 0.4) × 106 µC Gy−1air cm−2 for 60 kVp X-ray and the lowest detectable dose rate reaches (5.0 ± 0.7) nGy s−1, which enables reduced radiation dose to patients in medical X-ray diagnostics.

scholarly journals Evaluation and Analysis of Baitul Arqam on the Morals and Performance of Lecturers and Employees of the University of Muhammadiyah Kotabumi

2020 ◽  
Vol 4 (2) ◽  
pp. 133-153
Author(s):  
Junaidi Junaidi ◽  
Karsoni Berta Dinata ◽  
Darwanto Darwanto
Keyword(s):  
Research Design ◽  
High Performance ◽  
Evaluation Research ◽  
Qualitative Research Design ◽  
Research Designs ◽  
Post Test ◽  
And Performance ◽  
Interesting Learning ◽  
The University

The aims of this study is as basis for making policies and strategies that need to be taken to improve the quality of  Baitul Arqam Program going forward. Baitul Arqam program that has been carried out so far has never been seen in measurable terms. There are three research designs in this study, namely 1) descriptive-qualitative research design, 2) survey research design and 3) CIPP evaluation research design. The result of this study are based on the result of the analysis of the questionnaire and interview, it can be concluded that the lecturers and employees who have participated in Baitul Arqam activities have good morals and high performance. Based on the result of the evaluation it can be concluded that, 1) Baitul arqam material should be made into one book and distributed to participants, 2) The material should also discuss matters related to prayer, organizing bodies, and other worship in accordance with the guidance of HPT, 3) The video interesting learning so that participants are more interested and focused, 4) Every lecturer and employee who has not yet followed the Baitul Arqam must participate in the activity, 5) There is a pre-test and post-test to measure the success of the participants, 6) the mandatory requirements of participants are declared to pass if they take Fathul Quthub and Tahajud Prayers, and follow the material for each session at a minimum 75%.

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