scholarly journals Asymmetric bias-induced barrier lowering as an alternative origin of current rectification in geometric diodes

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Mengmeng Bai ◽  
Yanqing Zhao ◽  
Shuting Xu ◽  
Tao Tang ◽  
Yao Guo
Keyword(s):  
Transport System ◽  
Physical Mechanism ◽  
Current Flow ◽  
Ballistic Transport ◽  
Key Factors ◽  
High Quality ◽  
Current Rectification

AbstractGeometric diodes, which take advantage of geometric asymmetry to achieve current flow preference, are promising for THz current rectification. Previous studies relate geometric diodes’ rectification to quantum coherent or ballistic transport, which is fragile and critical of the high-quality transport system. Here we propose a different physical mechanism and demonstrate a robust current rectification originating from the asymmetric bias induced barrier lowering, which generally applies to common semiconductors in normal environments. Key factors to the diode’s rectification are carefully analyzed, and an intrinsic rectification ability at up to 1.1 THz is demonstrated.

Out of Hospital Cardiac Arrest

2018 ◽  
pp. 89-93
Author(s):  
Erik Rueckmann
Keyword(s):  
Cardiac Arrest ◽  
Cardiopulmonary Resuscitation ◽  
Emergency Medical Services ◽  
Evidence Based ◽  
Early Defibrillation ◽  
Key Factors ◽  
High Quality ◽  
Key Points ◽  
Neurologically Intact ◽  
Hospital Cardiac Arrest

The management of out-of-hospital, atraumatic cardiac arrest has changed over the past decade. This case details the evidence-based changes in care that optimize the chance of neurologically intact survival. The key factors include immediate, continuous, high-quality cardiopulmonary resuscitation with minimal interruptions, early defibrillation, and the use of capnography to assess resuscitative efforts. The orchestration of resuscitative efforts is a bundle of care that must all be met to provide the patient the best chance of survival. Furthermore, this case illustrates the key points of postarrest care and touches on termination of resuscitation. This chapter examines the case of emergency medical services call for an unresponsive patient in cardiac arrest on arrival.

Statistical Methods in the Automotive Industry

2015 ◽  
Vol 791 ◽  
pp. 56-62
Author(s):  
Ewa Golińska ◽  
Marcin Zemczak
Keyword(s):  
Decision Making ◽  
Quality Management ◽  
Statistical Process Control ◽  
Statistical Methods ◽  
Automotive Industry ◽  
Manufacturing Processes ◽  
Key Factors ◽  
High Quality ◽  
Statistical Process ◽  
Decision Making Processes

Controlling of the manufacturing processes is one of the key factors that allow companies to produce goods of high quality. In the article one of methods of the quality management - statistical process control (SPC) has been discussed. On the example of the car headrests manufacturing enterprise benefits from applying this method have been presented. Authors pointed out that the use of statistical methods in decision-making processes must not be difficult and time-consuming, if is being supported by a computer with using inexpensive tools.

scholarly journals Biodiversity of Vegetable Crops, A Living Heritage

Agriculture ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 47 ◽  
Author(s):  
Massimiliano Renna ◽  
Angelo Signore ◽  
Francesco Montesano ◽  
Maria Gonnella ◽  
Pietro Santamaria
Keyword(s):  
Crop Production ◽  
Vegetable Crops ◽  
Special Issue ◽  
Key Factors ◽  
Environmental Aspects ◽  
Research Papers ◽  
High Quality ◽  
High Quality Research ◽  
The Social ◽  
Production Environments

Biodiversity is the natural heritage of the planet and is one of the key factors of sustainable development, due to its importance not only for the environmental aspects of sustainability but also for the social and economic ones. The purpose of this Special Issue is to publish high-quality research papers addressing recent progress and perspectives while focusing on different aspects related to the biodiversity of vegetable crops. Original, high-quality contributions that have not yet been published, or that are not currently under review by other journals, have been gathered. A broad range of aspects such as genetic, crop production, environments, customs and traditions were covered. All contributions are of significant relevance and could stimulate further research in this area.

A review: crystal growth for high-performance all-inorganic perovskite solar cells

2020 ◽  
Vol 13 (7) ◽  
pp. 1971-1996 ◽  
Author(s):  
Weijie Chen ◽  
Xinqi Li ◽  
Yaowen Li ◽  
Yongfang Li
Keyword(s):  
Solar Cells ◽  
Crystal Growth ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Key Factors ◽  
High Quality ◽  
Inorganic Perovskite ◽  
Perovskite Crystal

The key factors for high-quality all-inorganic perovskite crystal growth.

Optimized Synthesis of Water-Soluble and Small-Size CdSe Quantum Dots

2011 ◽  
Vol 266 ◽  
pp. 46-50
Author(s):  
Jiao Yun Xia ◽  
Jun Long Tang
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Water Soluble ◽  
Cdse Quantum Dots ◽  
Key Factors ◽  
Cdse Qds ◽  
High Quality ◽  
Synthesis Route ◽  
Initial Ph

An optimized synthesis route was applied for controlling the preparation of CdSe quantum dots (QDs) in an aqueous solution. Some key factors which influencing the properties of CdSe QDs, such as initial pH, ratio of precursor etc, were investigated. The as-prepared products have been characterized by TEM, XPS, XRD, UV-Vis and fluorescence (FL) spectra. The result showed that the high-quality CdSe QDs with 3 nm was obtained. The experiments also conformed that the CdSe QDs with better FL properties were obtained with properly initial pH, 5, suitably [Cd2+] / [SeSO3 2-], range from 1:0.25 to 1:0.75 and the ratio of [Cd2+] / [TGA] is 1:2~1:3.

scholarly journals The Trilateral Evolutionary Game of Agri-Food Quality in Farmer-Supermarket Direct Purchase: A Simulation Approach

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Xin Su ◽  
Haolong Liu ◽  
Shunqi Hou
Keyword(s):  
Quality Assurance ◽  
Food Quality ◽  
Evolutionary Game ◽  
Quality Standards ◽  
Payoff Matrix ◽  
Legal Rights ◽  
Evolutionary System ◽  
Key Factors ◽  
Stable States ◽  
High Quality

The prevalence of opportunistic behaviors in agri-food production and circulation results in frequent quality accidents in emerging economies. Numerous researches have discussed effective countermeasures to this problem, but few of them focus on the effectiveness and stability of quality assurance systems. Owing to the bounded rationality and information asymmetry, the dynamic quality game among producers, marketers, and consumers has significant characteristics of complexity. This paper aims at discussing the farmer-supermarket direct purchase’s contributions to ensure the agri-food quality and analyzing the effectiveness, stability, and key factors of this new industrial organization. Based on the evolutionary game theory, we establish the trilateral-game payoff matrix, build up the replicator dynamic equations, and discuss possible evolutionary stable states. The simulation results show that the evolutionary system converges to desired stability faster, when the high-quality agri-food’s market premium increases and the penalty for violating quality standards increases. Furthermore, when farmers share more high-quality agri-food’s market premiums and marketers compensate more for violating the quality standards than before, the evolutionary system also converges to desired stability faster. Therefore, the quality information tracing technology, farmers and marketers’ fair distribution of profits and risks, and consumers’ capabilities to safeguard their legal rights are the three key factors to maintain the effectiveness and stability of quality assurance systems.

scholarly journals TOWARDS BALLISTIC TRANSPORT IN GRAPHENE

2008 ◽  
Vol 22 (25n26) ◽  
pp. 4579-4588 ◽  
Author(s):  
XU DU ◽  
IVAN SKACHKO ◽  
EVA Y. ANDREI
Keyword(s):  
Building Block ◽  
Graphene Layer ◽  
Ballistic Transport ◽  
Full Potential ◽  
High Quality ◽  
Extrinsic Factors ◽  
Material Defects ◽  
Theoretical Predictions ◽  
Graphene Devices

Graphene is a fascinating material for exploring fundamental science questions as well as a potential building block for novel electronic applications. In order to realize the full potential of this material the fabrication techniques of graphene devices, still in their infancy, need to be refined to better isolate the graphene layer from the environment. We present results from a study on the influence of extrinsic factors on the quality of graphene devices including material defects, lithography, doping by metallic leads and the substrate. The main finding is that trapped Coulomb scatterers associated with the substrate are the primary factor reducing the quality of graphene devices. A fabrication scheme is proposed to produce high quality graphene devices dependably and reproducibly. In these devices, the transport properties approach theoretical predictions of ballistic transport.

High Quality Characteristics of Briquette Fuel Based on Physical Appearances and Electrical Induction

2016 ◽  
Vol 848 ◽  
pp. 56-59
Author(s):  
Duongruitai Nicomrat ◽  
Parinya Somkid ◽  
Kitti Chuaiwan
Keyword(s):  
Production Process ◽  
Agricultural Waste ◽  
High Heat ◽  
Heat Output ◽  
Key Factors ◽  
High Quality ◽  
Key Characteristics ◽  
Electrical Induction ◽  
Further Development

At present, charcoal briquette fuel, a source of heat energy and mostly made from agricultural waste materials, are popular in the markets because of their high constant heat output. It helps reduce pollution, and produce no sparks while burning, but varied due to different types of materials, burning protocols, temperature, and pressure used. In this study, the research team have studied the characteristics of high quality fuel briquettes for possible further development of standard indicators of briquette fuel production process. In the study, key factors of the Charcoal fuel features composed of high qualities of physical characteristics and electrical induction. Activated carbon and coconut shell charcoal types were showed to be great materials. The production process involved aerobic burning at 800-900oC for at least 3 hours, grinding and mixing with starch binder. The briquettes’ electrical conductivity was especially lower than 10 kΩ. High heat production was obtained at least 6000 Cal/g while ground charcoal possessed with the sizes were varied. Under microscopy, the charcoal particle sizes were in a range of 50-100 μm for 30-50% (w/w), size of 10-50 μm for 20-40% (w/w) and distinctive numbers of holes greater than 300 μ to 1 mm were rarely observed. Therefore, with key characteristics of charcoal briquette fuel, it could be further applied for development the indicator as well as instruments to measure the quality of the briquette.

scholarly journals KEBUTUHAN ASAM LEMAK ESENSIAL PADA IKAN LAUT

2011 ◽  
Vol 7 (2) ◽  
pp. 93 ◽  
Author(s):  
Henneke Pangkey
Keyword(s):  
Essential Fatty Acids ◽  
Normal Growth ◽  
Aquatic Organism ◽  
Nutrient Elements ◽  
Key Factors ◽  
High Quality ◽  
Human Needs ◽  
The World ◽  
Organism Growth ◽  
Nutrition Value

ABSTRACTAquaculture has contributed one third of the world is supply of seafood. This contribution is expected to increase in the future. Based on this reason, aquaculture is potential to continually provide food for human needs. One of the key factors to the success of aquaculture is the supply of nutritious feed. Feeding with food of right nutrition value will produce healthy and high quality fish. One of the nutrient elements that plays an important role in aquatic organism growth is lipid. Lipids in the form of essential fatty acids are highly required not only for broodstock and larvae, but also for normal growth of marine fish.ABSTRAKAkuakultur telah memberikan kontribusi sebesar sepertiga kebutuhan dunia akan produk makanan laut, dan akan terus bertambah di masa depan. Dipandang dari sudut ini, akuakultur memiliki prospek untuk menjadi usaha berkelanjutan dalam menyediakan pangan bagi populasi manusia yang terus bertambah. Salah satu faktor yang menentukan keberhasilan dalam usaha akuakultur adalah penyediaan pakan dengan kandungan nutrisi yang optimal. Pemberian pakan dengan komponen nutrisi yang tepat dapat menghasilkan ikan yang sehat dan berkualitas tinggi. Salah satu komponen nutrisi yang sangat berperan dalam pertumbuhan biota akuakultur adalah lipida. Lipida berupa asam lemak esensial sangat dibutuhkan baik oleh induk dan larva, juga untuk pertumbuhan secara normal ikan laut.

scholarly journals Supporting competitiveness of textile companies in Ukraine

2019 ◽  
pp. 141-150
Author(s):  
Olena Berestetska
Keyword(s):  
Textile Industry ◽  
International Markets ◽  
Financial Sustainability ◽  
Competitive Advantages ◽  
Expert Evaluation ◽  
Key Factors ◽  
High Quality ◽  
National Market ◽  
Market Relations

In the conditions of market relations, each enterprise aims at maximizing the results of their performance. On the other hand, a competitive environment poses additional challenges in achieving this goal. Therefore, enterprises need to create and maintain competitive advantages, the main of which are aimed at manufacturing high quality products and meeting consumers’ expectations. That is why the purpose of the study is to assess the competitiveness of domestic textile enterprises and to develop proposals for their competitive positioning both on the national and international markets. The author proposes a model of expert evaluation of competitiveness in the textile industry of the national economy. The results of the study make it possible to conclude that there is sufficient potential for restoration and competitive development of the textile industry. It is stressed that democratic prices and high quality should become the key factors of competitiveness. It is determined that manufacturing high quality products by domestic enterprises will ensure long-term financial sustainability of enterprises and additional investments, which will help to increase production volumes, create more workplaces, improve the positioning of the industry on the national market, and increase its export potential.

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