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相关概念视频

Implementation of a Real-Time Psychosis Risk Detection and Alerting System Based on Electronic Health Records using CogStack07:31

Implementation of a Real-Time Psychosis Risk Detection and Alerting System Based on Electronic Health Records using CogStack

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We demonstrate how to deploy a real-time psychosis risk calculation and alerting system based on CogStack, an information retrieval and extraction platform for electronic health...
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Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis07:51

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis

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This article presents a protocol based on Hydra — a web-based system for clinical decision support that integrates a full and detailed set of functionalities and services required by physicians for complete cardiovascular analysis, risk assessment, early diagnosis, treatment, and monitoring over...
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A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting14:43

A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting

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This manuscript describes the Research Prioritization by Affected Communities (RPAC) protocol and findings from its use with women at risk for preterm birth. Using the protocol, women identified and prioritized their unanswered questions about pregnancy, birth and neonatal care aimed at influencing research priority setting by funders and...
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Watershed Planning within a Quantitative Scenario Analysis Framework12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

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There is a critical need for tools and methodologies capable of managing aquatic systems in the face of uncertain future conditions. We provide methods for conducting a targeted watershed assessment that enables resource managers to produce landscape-based cumulative effects models for use within a scenario analysis management...
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High Content Screening Analysis to Evaluate the Toxicological Effects of Harmful and Potentially Harmful Constituents (HPHC)11:38

High Content Screening Analysis to Evaluate the Toxicological Effects of Harmful and Potentially Harmful Constituents (HPHC)

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The objective of the study was to assess the biological impact of 15 cigarette smoke constituents using a combination of an impedance-based real time cell analyzer and a high-content screening (HCS)-based platform for toxicological assessment in vitro. This study provides information on effective doses, toxicity and modes of action of the tested compounds.
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Preventing the Spread of Malaria and Dengue Fever Using Genetically Modified Mosquitoes17:50

Preventing the Spread of Malaria and Dengue Fever Using Genetically Modified Mosquitoes

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In this candid interview, Anthony A. James explains how mosquito genetics can be exploited to control malaria and dengue transmission. Population replacement strategy, the idea that transgenic mosquitoes can be released into the wild to control disease transmission, is introduced as well as the concept of genetic drive and the design criterion for an effective genetic drive system. The ethical considerations of releasing genetically-modified organisms into the wild are also...
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相关实验视频

Updated: Jan 19, 2026

Implementation of a Real-Time Psychosis Risk Detection and Alerting System Based on Electronic Health Records using CogStack
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有效的发光二极管可以发光.

M A Green1, J Zhao, A Wang

  • 1Centre for Third Generation Photovoltaics, University of New South Wales, Sydney, New South Wales 2052, Australia. m.green@unsw.edu.au

Nature
|August 24, 2001
PubMed
概括

研究人员开发了高效的发光二极管 (LED),功率转换效率超过1%. 这一突破克服了以前的局限性,为集成光子学铺平了道路.

科学领域:

  • 材料科学 材料科学 材料科学
  • 光电学是指光电子产品.
  • 半导体物理 半导体物理

背景情况:

  • 基于的集成电路无处不在,但高效的发光设备仍然是一个重大挑战.
  • 目前的发光二极管 (LED) 的功率转换效率非常低,通常在0.01-0.1%范围内.

研究的目的:

  • 显著提高发光二极管 (LED) 的功率转换效率.
  • 为了实现与直接带隙发射器相似的效率,用于光子学中的实际应用.

主要方法:

  • 设备的设计旨在通过一个和两个声辅助过程来增强子频段间隙光辐射.
  • 该设计最大限度地吸收了特定子频段间隙波长的光.
  • 实施了战略,以尽量减少二极管结构内的非辐射重组.

主要成果:

  • 在室温附近实现了超过1%的功率转换效率,比基线设备提高了一百倍.
  • 个别设计特征表明排放效率增加了十倍.
  • 开发的LED接近10年前直接带隙发射器的性能.

结论:

  • 工程LED代表了光电子技术的重大进步.

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  • 这些发现允许将高效的光发射与基于的电子产品集成.
  • 这项工作克服了光子学发展的关键瓶.