机构

• 地理科学与资源研究所 [3]
• 长春光学精密机械与物... [1]
• 古脊椎动物与古人类研... [1]

采集方式

• OAI收割 [5]

内容类型

• EI期刊论文 [2]
• 期刊论文 [2]
• 会议论文 [1]

发表日期

• 2022 [1]
• 2020 [1]
• 2014 [2]
• 2008 [1]

学科主题

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Uneven development of the lead industry leads to regional differences in blood lead levels of children* 期刊论文  OAI收割 ENVIRONMENTAL POLLUTION, 2022, 卷号: 293, 页码: 9 作者:  Liu, Yang;  Xu, Chengdong;  Liu, Feiyan;  Xiao, Gexin;  Zhou, Shaoqi   |  收藏  |  浏览/下载：33/0  |  提交时间：2022/09/21 Blood lead levels  Lead industry  Regional inequality  Children's health  China   Source change of lead materials for mirror-making industry in Western Han, China: evidence from Nanyang bronze mirrors 期刊论文  OAI收割 CURRENT SCIENCE, 2020, 卷号: 118, 期号: 9, 页码: 1442-1447 作者:  Chen, Dian;  Zeng, Qingshuo;  Cui, Benxin;  Luo, Wugan   |  收藏  |  浏览/下载：24/0  |  提交时间：2020/09/15 Bronze mirror  lead isotope ratio  mirror-making industry  source change   Geochemical characteristics and pollution sources identification of the near-surface atmosphere dust-fall in Jining City EI期刊论文  OAI收割 2014 Dai Jie-Rui; Zhu De-Cheng; Pang Xu-Gui; Wang Xue 收藏  |  浏览/下载：43/0  |  提交时间：2014/12/31 Pollution  Coal  Coal dust  Factor analysis  Industry  Lead  Meteorology  Multivariant analysis  Nickel  Ontology  Spatial distribution  Zinc   Applications of stochastic models and geostatistical analyses to study sources and spatial patterns of soil heavy metals in a metalliferous industrial district of China EI期刊论文  OAI收割 2014 作者:  Wang Lingqing;  Liang Tao 收藏  |  浏览/下载：48/0  |  提交时间：2014/12/31 Industry  Environmental management  Forestry  Heavy metals  Interpolation  Lead  Meteorological problems  Mixtures  Soil pollution  Soil surveys   808nm high-power high-efficiency GaAsP/GaInP laser bars (EI CONFERENCE) 会议论文  OAI收割 Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China 作者:   收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 808nm high power diode lasers  which is rapidly maturing technology technically and commercially since the introduction in 1999 of complete kilowatt-scale diode laser systems  have important applications in the fields of industry and pumping solid-state lasers (DPSSL). High power and high power conversion efficiency are extremely important in diode lasers  and they could lead to new applications where space  weight and electrical power are critical. High efficiency devices generate less waste heat  which means less strain on the cooling system and more tolerance to thermal conductivity variation  a lower junction temperature and longer lifetimes. Diode lasers with Al-free materials have superior power conversion efficiency compared with conventional AlGaAs/GaAs devices because of their lower differential series resistance and higher thermal conductivity. 808nm GaAsP/GalnP broad-waveguide emitting diode laser bars with 1mm cavity length have been fabricated. The peak power can reach to 100.9W at 106.5A at quasicontinuous wave operation (200s  1000Hz). The maximum power conversion efficiency is 57.38%. Based on these high power laser bars  we fabricate a 1 3 arrays  the maximum power is 64.3 W in continuous wave mode when the current is 25.0A. And the threshold current is 5.9A  the slope efficiency is 3.37 W/A. 2008 SPIE.