27 resultados para Ley 850 de 2003

em Chinese Academy of Sciences Institutional Repositories Grid Portal


Relevância:

20.00% 20.00%

Publicador:

Resumo:

2003年,力学所在知识创新工程试点工作中取得了新的进展和成果.这一年有两件大事值得记忆:一是中长期发展战略规划的制定;二是抗击非典.力学所在这场战役中结合自己的工作基础,齐心协力,贡献了自己的力量.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

本实验对在不同Zn2+浓度条件下培养的固氮鱼腥藻(Anabaena azoticaLey)的生长、光合放氧速率和叶绿素荧光参数Fv/Fm进行了测定.结果表明,当Zn2+浓度为1.0μmol/L时,其比生长速率(Specific growth rate)最大,光合放氧速率和Fv/Fm值最高.当Zn2+浓度大于等于5.0μmol/L时会抑制A.azotica Ley的生长和光合作用.对在0μmol/L和5.0μmol/L Zn2+浓度下生长的藻细胞藻胆体-类囊体膜复合物吸收光谱的比较和对与5.0μmol/L

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A monolithic silicon CMOS optoelectronic integrated circuit (OEIC) was designed and fabricated with standard 0.6 mu m CMOS technology. This OEIC circuit consisted of an integrated double photodiode detector (DPD) and a preamplifier. The DPD detector exhibited high bandwidth by screening the bulk-generated diffusion carriers and suppressing the slow diffusion tail effect. The preamplifier exploited the regulated cascode (RGC) configuration as the input stage of receiver, thus isolating the influence of photodiode capacitance and input parasitic capacitance on bandwidth. Testing results showed that the bandwidth of OEIC was 700MHz, indicating the bit rate of 1Gb/s was achieved.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

采用钨丝做掩模,进行倾斜的离子注入优化电流限制区,制作出室温连续的垂直腔面发射激光器件.该器件的最低阈值电流为1.4 mA,串联电阻约207 Ω, 输出光功率超过1 mW.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

概述了2003年OFC会议上报道的平面光波导器件,着重介绍了平面光波导器件在新材料、新工艺、新结构方面的新进展和发展方向。

Relevância:

20.00% 20.00%

Publicador:

Resumo:

IEECAS SKLLQG

Relevância:

20.00% 20.00%

Publicador:

Resumo:

IEECAS SKLLQG