检索结果-南通市图书馆

Some new viewpoints in reactor noise analysis

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Nuclear Science and Techniques 1996年第4期7卷 202-204页

作者：罗征培李富李宝琰 instituteofnuclearenergytechnology TsinghuaUniversityBeijing100084

ＳｏｍｅｎｅｗｖｉｅｗｐｏｉｎｔｓｉｎｒｅａｃｔｏｒｎｏｉｓｅａｎａｌｙｓｉｓＬｕｏＺｈｅｎｇ－Ｐｅｉ（罗征培），ＬｉＦｕ（李富）ａｎｄＬｉＢａｏ－Ｙａｎ（李宝琰（ＩｎｓｔｉｔｕｔｅｏｆＮｕｃｌｅａｒＥｎｅｒｐｙＴｅ... 详细信息

ＳｏｍｅｎｅｗｖｉｅｗｐｏｉｎｔｓｉｎｒｅａｃｔｏｒｎｏｉｓｅａｎａｌｙｓｉｓＬｕｏＺｈｅｎｇ－Ｐｅｉ（罗征培），ＬｉＦｕ（李富）ａｎｄＬｉＢａｏ－Ｙａｎ（李宝琰（ＩｎｓｔｉｔｕｔｅｏｆＮｕｃｌｅａｒＥｎｅｒｐｙＴｅｃｈｎｏｌｏｇｙ，Ｔｓｉｎｇｈｕａ...

关键词：反应堆噪声分析新观点

Thermal-hydraulic stability of a natural circulation system with nuclear feedback

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Nuclear Science and Techniques 1997年第4期8卷 208-213页

作者： XuZhan－Jie ChenLi－Qiang 等 instituteofnuclearenergytechnology TsinghuaUniversityBeijing100084 InstituteofNuclearEnergyTechnolog

ＴｈｅｒｍａｌｈｙｄｒａｕｌｉｃｓｔａｂｉｌｉｔｙｏｆａｎａｔｕｒａｌｃｉｒｃｕｌａｔｉｏｎｓｙｓｔｅｍｗｉｔｈｎｕｃｌｅａｒｆｅｅｄｂａｃｋＸｕＺｈａｎＪｉｅ，ＣｈｅｎＬｉＱｉａｎｇ，ＭａＣｈａｎｇＷｅｎ... 详细信息

ＴｈｅｒｍａｌｈｙｄｒａｕｌｉｃｓｔａｂｉｌｉｔｙｏｆａｎａｔｕｒａｌｃｉｒｃｕｌａｔｉｏｎｓｙｓｔｅｍｗｉｔｈｎｕｃｌｅａｒｆｅｅｄｂａｃｋＸｕＺｈａｎＪｉｅ，ＣｈｅｎＬｉＱｉａｎｇ，ＭａＣｈａｎｇＷｅｎａｎｄＷｕＳｈａｏＲｏｎｇ（Ｉｎ...

关键词：二相流核反馈自然循环系统

Recent advances of annular centrifugal extractor for hot test of nuclear waste partitioning process

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Nuclear Science and Techniques 1998年第3期9卷 157-162页

作者： HeXiang－Ming YanYu－Shun 等 instituteofnuclearenergytechnology TsinghuaUniversityBeijing102201 InstituteofNuclearEnergyTechnolog

１ＩｎｔｒｏｄｕｃｔｉｏｎＳｏｌｖｅｎｔｅｘｔｒａｃｔｉｏｎｅｑｕｉｐｍｅｎｔｈａｓｅｖｏｌｖｅｄｃｏｎｓｉｄｅｒａｂｌｙｆｏｒｎｅｄｏｆｓｅｐａｒａｔｉｏｎｏｆｎｕｃｌｅａｒｅｌｅｍｅｎｔｓｏｖｅｒｔｈｅｌａｓｔ... 详细信息

１ＩｎｔｒｏｄｕｃｔｉｏｎＳｏｌｖｅｎｔｅｘｔｒａｃｔｉｏｎｅｑｕｉｐｍｅｎｔｈａｓｅｖｏｌｖｅｄｃｏｎｓｉｄｅｒａｂｌｙｆｏｒｎｅｄｏｆｓｅｐａｒａｔｉｏｎｏｆｎｕｃｌｅａｒｅｌｅｍｅｎｔｓｏｖｅｒｔｈｅｌａｓｔ５０ｙｅａｒｓ．Ｍｉｘｅｒｓｅｔ...

关键词：核废料处理隔离处理离心分离器

The study of aeroball system for measuring 3D neutron flux distribution in reactor core

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Nuclear Science and Techniques 1997年第3期8卷 144-148页

作者： LuoZheng－Pei LiFu 等 instituteofnuclearenergytechnology TsinghauUniversityBeijing100084 InstituteofNuclearEnergyTechnolog

Ｔｈｅｓｔｕｄｙｏｆａｅｒｏｂａｌｓｙｓｔｅｍｆｏｒｍｅａｓｕｒｉｎｇ３ＤｎｅｕｔｒｏｎｆｌｕｘｄｉｓｔｒｉｂｕｔｉｏｎｉｎｒｅａｃｔｏｒｃｏｒｅＬｕｏＺｈｅｎｇＰｅｉ，ＬｉＦｕ，ＺｈａｎｇＹａＤａｎ（Ｉｎｓｔ... 详细信息

Ｔｈｅｓｔｕｄｙｏｆａｅｒｏｂａｌｓｙｓｔｅｍｆｏｒｍｅａｓｕｒｉｎｇ３ＤｎｅｕｔｒｏｎｆｌｕｘｄｉｓｔｒｉｂｕｔｉｏｎｉｎｒｅａｃｔｏｒｃｏｒｅＬｕｏＺｈｅｎｇＰｅｉ，ＬｉＦｕ，ＺｈａｎｇＹａＤａｎ（ＩｎｓｔｉｔｕｔｅｏｆＮｕｃｌｅａｒＥｎｅ...

关键词：反应堆芯中子流分布测量气球系统

Study on the properties of saline HLLW in China

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Nuclear Science and Techniques 1997年第4期8卷 204-207页

作者： LiangJun－Fu TianGuo－Xing 等 instituteofnuclearenergytechnology TsinghuaUniversityBeijing102201 InstituteofNuclearEnergyTechnolog

ＳｔｕｄｙｏｎｔｈｅｐｒｏｐｅｒｔｉｅｓｏｆｓａｌｉｎｅＨＬＬＷｉｎＣｈｉｎａＬｉａｎｇＪｕｎＦｕ，ＴｉａｎＧｕｏＸｉｎｇ，ＳｏｎｇＣｈｏｎｇＬｉ，ＪｉａｏＲｏｎｇＺｈｏｕ，ＬｉｕＢｉｎｇＲｅｎ，ＬｉｕＸ... 详细信息

ＳｔｕｄｙｏｎｔｈｅｐｒｏｐｅｒｔｉｅｓｏｆｓａｌｉｎｅＨＬＬＷｉｎＣｈｉｎａＬｉａｎｇＪｕｎＦｕ，ＴｉａｎＧｕｏＸｉｎｇ，ＳｏｎｇＣｈｏｎｇＬｉ，ＪｉａｏＲｏｎｇＺｈｏｕ，ＬｉｕＢｉｎｇＲｅｎ，ＬｉｕＸｉｕＱｉｎａｎｄＧｕｏＹｉＦｅ...

关键词：核废料处理高级废料分析萃取

Flashing and flashing coupled density wave oscillation in natural circulation system

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Nuclear Science and Techniques 1997年第1期8卷 38-42页

作者： JiangSheng－Yao WuXin－Xin 等 instituteofnuclearenergytechnology TsinghuaUniversityBeijing102201 InstituteofNuclearEnergyTechnolog

ＦｌａｓｈｉｎｇａｎｄｆｌａｓｈｉｎｇｃｏｕｐｌｅｄｄｅｎｓｉｔｙｗａｖｅｏｓｃｉｌａｔｉｏｎｉｎｎａｔｕｒａｌｃｉｒｃｕｌａｔｉｏｎｓｙｓｔｅｍＪｉａｎｇＳｈｅｎｇＹａｏ，ＷｕＸｉｎＸｉｎ，ＷｕＳｈａｏＲｏ... 详细信息

ＦｌａｓｈｉｎｇａｎｄｆｌａｓｈｉｎｇｃｏｕｐｌｅｄｄｅｎｓｉｔｙｗａｖｅｏｓｃｉｌａｔｉｏｎｉｎｎａｔｕｒａｌｃｉｒｃｕｌａｔｉｏｎｓｙｓｔｅｍＪｉａｎｇＳｈｅｎｇＹａｏ，ＷｕＸｉｎＸｉｎ，ＷｕＳｈａｏＲｏｎｇ，ＢｏＪｉｎＨａｉ，Ｚｈａｎ...

关键词： 5MW加热反应堆自然环境系统密度波振荡

Difference in electron-and gamma-irradiation effects on output characteristic of color CMOS digital image sensors

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Rare Metals 2004年第2期23卷 165-170页

作者： MENGXiangti KANGAiguo ZHANGXimin LIJihong HUANGQiang LIFengmei LIUXiaoguang ZHOUHongyu instituteofnuclearenergytechnology TsinghuaUniversityBeijing100084China InstituteofLowEnergyNuclearPhysics BeijingNormalUniversityBeijing100875China

Changes of the average brightness and non-uniformity of dark output images,and quality of pictures captured under natural lighting for the color CMOS digital image sensorsirradiated at different electron doses have been studied in comparison to those from theγ-irradiated sensors. For the electron-irradiated sensors, the non-uniformity increases obviouslyand a small bright region on the dark image appears at the dose of 0.4 kGy. The average brightnessincreases at 0.4 kGy, increases sharply at 0.5 kGy. The picture is very blurry only at 0.6 kGy,showing the sensor undergoes severe performance degradation. Electron radiation damage is much moresevere than γ radiation damage for the CMOS image sensors. A possible explanation is presented inthis paper.

关键词： semiconductor technology irradiation damage electron and gamma irradiation color CMOS image sensor output characteristic Si

Electrical Performance of Electron Irradiated SiGe HBT and Si BJT

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Journal of Materials Science & Technology 2004年第6期20卷 706-708页

作者： WentaoHUANG JilinWANG ZhinongLIU PeiyiCHEN PeihsinTSIEN XiangtiMENG InstituteofMicroelectronics TsinghuaUniversityBeijing100084China instituteofnuclearenergytechnology TsinghuaUniversityBeijing100084China

The change of electrical performances of 1 MeV electron irradiated silicon-germanium (SiGe) heterojunction bipolar transistor (HBT) and Si bipolar junction transistor (BJT) was studied. After electron irradiation, both the collector current IC and the base current IB changed a little, and the current gain β decreased a little for SiGe HBT. The higher the electron irradiation fluence was, the lower the IC decreased. For conventional Si BJT, IC and IB increased as well as /? decreased much larger than SiGe HBT under the same fluence. The contribution of IB was more important to the degradation of β for both SiGe HBT and Si BJT. It was shown that SiGe HBT had a larger anti-radiation threshold and better anti-radiation performance than Si BJT. The mechanism of electrical performance changes induced by irradiation was preliminarily discussed.

关键词： Electron irradiation SiGe HBT Si BJT Electrical performance

Vacuum-Aided Recovery Technology of Spent Ni-Cd Batteries

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Journal of Materials Science & Technology 2003年第1期19卷 54-56页

作者： JianxinZHU BoYU 等 DepartmentofEvironmentalEngineering TshinghuaUniversityBeijing100084China instituteofnuclearenergytechnology TsinghuaUniversityBeijing100084China

Recovery of Ni-Cd batteries was studied by a self-designed vacuum-aided recovering system under laboratory conditions. The fundamental research on a process of disassembling and recovering selected materials from Ni-Cd batterieswas conducted. The impacts of temperature, pressure and time were studied respectively. The mechanism of vacuum thermal recovering was also discussed. The results show that: Ni-Cd batteries can be recovered effectively byvacuum-aided recovering system at 573~1173 K. At constant pressure, the increase of temperature can improve theseparating efficiency of cadmium. When the temperature is 1173 K, the cadmium can evaporate completely fromthe residue during 3 h at 10 Pa. The reduction of pressure in the certain range is effective to separate cadmium byvacuum distillation. Distillation time is a very important factor affecting separation of cadmium.

关键词： Ni-Cd battery Vacuum distillation Resource recovery Recovering technology Environmental protection