石油化工仪器仪表自动化技术探讨

基于石油化工生产的易燃易爆等危险因素存在的场所,应用自动化的仪器仪表设施,提高化工生产的自动化程度,降低岗位员工的劳动强度,提高石油化工生产的安全性。石油化工仪器仪表的自动控制技术措施的应用,使化工生产程序化,获得最佳的产品收率,满足石油化工生产的需要。     

16信道0.35μmCMOS/VCSEL光发射模块

研究了垂直腔面发射激光器 (VCSEL)及其列阵器件的光谱特性、调制特性、高频特性及与微电子电路的兼容性 ,将 1× 16的VCSEL与CMOS专用集成电路进行多芯片组装 (MCM ) ,混合集成为 16信道VCSEL光发射功能模块 .测试过程中 ,功能模块的光电特性及其均匀性良好 ,测量的 - 3dB频带宽度大于 2GHz.     

PetroChina Inks Bio-Fuel Deal with the State Forestry Administration

11 January 2007, Beijing - PetroChina Company Limited （PetroChina） signed a framework agreement with the State Forestry Administration （SFA） on the development of forest bin-fuel and officially kicked off the construction of the first batch of forest bio-fuel tree breeding bases in Yunnan and Sichuan, marking a substantial step forward in the cooperation of forest bio-fuel development between the two parties.     

China Holds Exercises of Oil Spills Emergency Control

Chinese emergency services carried out their largest ever exercise in early June to tackle an oil spill in the Bohai Sea to test their ability to protect the ocean environment. The drill involved a scenario in which a 10,000-ton oil tanker exploded and spilt 500 tons of oil. Soon after the oil tanker Tianpeng ＂exploded＂, a fireboat arrived to fight the fire and a helicopter hovered above to spread chemicals to control oil spill, followed by more vessels and another helicopter.     

logy, Fujian Agricul

2Many Cucurbitaceae plants were known to be Chinese medicine herbs and contain ribosome-inactivating proteins (RIP), a group of toxic proteins that have been proposed and demonstrated to play potential use as toxins in the therapy of a variety of human tumors and viruses inc     

奇迹,在这里创造

我们记忆中那个“黑色的日子”已时过一年，但那场灾难带给我们的触目惊心至今仍历历在目。灾难是人力还可抗拒的．但灾后重建却反映了一种精神．一种洪魔吓不倒、困难压不垮的水利人顽强拼搏的献身精神——     

水基流延法制备片式PTC陶瓷

以PVA和PAA乳液为粘合剂,用水基流延法制备了BaTiO3基片式PTC陶瓷基片。研究了粘合剂、固相含量等对浆料黏度及流变行为的影响,同时对流延基片的干燥工艺、烧成曲线等也进行了研究。结果表明,将流延干燥后的基片,在1 320℃空气中烧结30 min,所得PTC样品的升阻比大于6个数量级,温度系数大于16%/℃,能够满足叠层PTC器件的制备要求。     

China to Ban Unlicensed Production of Cakes and Moon Cakes Next Year

On August 29th, Pu Changcheng, Deputy Director of AQSIQ, addressing a national press conference on cake and moon cake quality safety market access, reported that as of the end of July 2007, 761cake and moon cake enterprises had gained market access qualifications and had obtained food production licenses.     

AQSIQ Sends Working Groups to Implement the Spirit of National Quality Working Conference

On August 1st, the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) convened a conference to transmit the spirit of national quality work and study an important speech regarding standards from Wen Jiabao,Premier of the State Council.     

National Strategy on Intellectual Property Rights to Be Launched This Year

Ms. Chen Zhili, a State Councilor,expressed on the Glooal Forum on Intellectual Property Rights Protection and Innovation that a plan on the preparation of China's strategy on intellectual property rights would be issued and put into implcmentation this year, in an effort to jointly create a harmonious environment in which dialogue instead of confrontation will prevail.. At the forum, Mr.