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Delay performance of the CFDAMA-RPR protocol via satellite

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Journal of Systems Engineering and Electronics 2004年第4期15卷 467-471页

作者： ZhouXi JiaShilou sheyang CommunicationResearchCenter HarbinInstituteofTechnologyHarbin150001P.R.China ChongqingCommunicationInstitute Chongqing400035P.R.China

The relative performance of the combined free/demand assignment multiple access (CFDAMA) protocol with different terminal request strategies is examined. A new scheme is proposed employing combined round robin/ piggybacking request strategy (CFDAMA-RPR), which is compared with the CFDAMA-RR (employing round robin request strategy) and CFDAMA-PB (employing piggy-backing request strategy). Simulation results demonstrate that compared with CFDAMA-PB and CFDAMA-RR protocol, the CFDAMA-RPR scheme can offer better delay/throughput performance of satellite channel.

关键词： CFDAMA-RPR MAC 延时卫星通信

Women Aren't Behind Men as Breadwinners

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The Journal of Human Rights 2010年第3期9卷 27-30页

作者： LIN HAIREN Jiangsu sheyang County Radio and TV Station Jiangsu sheyang County Radio and TV Station

Man earns the bread while woman does housekeeping."This was a long-standing tradition in *** liberation, with the promotion of "equality of man and woman,

关键词： than Women Aren’t Behind Men as Breadwinners more mode

PRECIPITATION IN BINARY Al-Li ALLOYS

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Acta Metallurgica Sinica(English Letters) 1990年第5期3卷 347-351页

作者： YAO Daping HU Zhuangqi ZHANG Yun SHI Changxu Institute of Metal Research,Academia Sinica,sheyang,China Institute of Metall Research,Academia Sinica,Shenyang 110015,China

Studies were carried out on the precipitation in two sets of binary Al-Li alloys by means of hardness tests,DSC analyses and TEM *** the alloys were aged for constant time,a peak appeared on the plot of temperature dependence upon their hardness in the range of low temperatures,and the endothermic dissolution peak was quite distinct on the DSC curve also at low *** are believed that an Li-rich GP zone formed in the al- loys aged at low temperatures,but no more GP zone if aging at elevated *** hardness of the alloys raises rapidly with coarsening of δ′-phase *** two endothermic peaks of δ′ dissolution on the DSC curve relate to the structural adjustment at twice of the δ′ *** equilibrium δ-phase,being of higher thermal stability,nucleates and grows directly from the supersaturated solid solution with the aid of the gram boundary.

关键词： binary Al-Li alloy precipitation dissolution endothermic peak aging

Comparative study on radiosensitivity of various tumor cells and human normal liver cells

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World Journal of Gastroenterology 2005年第26期11卷 4098-4101页

作者： Jian-sheyang Wen-JianLi Guang-MingZhou Xiao-DongJin Jing-GuangXia Ju-FangWang Zhuan-ZiWang Chuan-LingGuo Qing-XiangGao InstituteofModernPhysics ChineseAcademyofSciencesLanzhou730000GansuProvinceChina LifeScienceSchoolofLanzhouUniversity Lanzhou730000GansuProvinceChina

AIM:To investigate the radiation response of various human tumor cells and normal liver cells. METHODS: Cell lines of human hepatoma cells (SMMC-7721), liver cells (L02), melanoma cells (A375) and cervical tumor (HeLa) were irradiated with 60Co γ-rays. Cell survive was documented by a colony assay. Chromatid breaks were measured by counting the number of chromatid breaks and isochromatid breaks immediately after prematurely chromosome condensed by Calyculin-A. RESULTS: Linear quadratic survival curve was observed in all of four cell lines, and dose-dependent increase in radiation-induced chromatid and isochromatid breaks were observed in GB2B phase. Among these four cell lines, A375 was most sensitive to radiation, while, L02 had the lowest radiosensitivity. For normal liver cells, chromatid breaks were easy to be repaired, isochromatid breaks were difficult to be repaired. CONCLUSION: The results suggest that the y-rays induced chromatid breaks can be possibly used as a good predictor of radiosensitivity, also, unrejoined isochromatid breaks probably tightly related with cell cancerization.

关键词： Radiosensitivity Tumor cells Normal Liver cells

CZQ6000型直流磁粉探伤机(附超低频退磁装置)

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无损检测 1986年第10期8卷 271-273页

作者：冯银丹江苏射阳无线电厂西安交通大学国营红安公司

本文介绍附有超低频退磁装置的新型6000A三相全波直流磁粉探伤机的设计方案、技术指标、电路原理、测试结果和同国外同类设备的对比。

关键词：磁粉探伤机电磁探伤机预选装置退磁去磁磁学 CZQ6000 超低频

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3691例农药中毒监测资料分析

中国职业医学 2003年第3期30卷 44-45页

作者：徐海张仁忠射阳县卫生防疫站江苏射阳224300

目的　探讨农药中毒发生的规律 ,为农药中毒的防治提供依据。方法　对辖区 1990～ 2 0 0 1年农药中毒监测资料统计分析。结果　 12年中共发生 3 691例农药中毒病例 ,中毒人数呈逐年下降趋势 ;生产性农药中毒 7～ 9月份病例占 98 1% ,非... 详细信息

目的　探讨农药中毒发生的规律 ,为农药中毒的防治提供依据。方法　对辖区 1990～ 2 0 0 1年农药中毒监测资料统计分析。结果　 12年中共发生 3 691例农药中毒病例 ,中毒人数呈逐年下降趋势 ;生产性农药中毒 7～ 9月份病例占 98 1% ,非生产性农药中毒高峰期为 6～ 8月 ,占 5 6 9%。防护不良 (占 40 2 % )、施药方法不当 (占 3 4 1% )是生产性中毒的主要原因 ;非生产性中毒原因以家庭及婚姻纠纷多见 (分别占 49 5 %、14 8% )。有机磷农药中毒占中毒总数的74 2 %。结论　辖区内农药中毒人数呈逐年下降趋势 ,高温季节使用“160 5”等剧毒农药加上防护不良是导致生产性中毒呈季节性升高的主要原因 ;夏秋农忙季节 ,家庭矛盾增多 ,加上农药管理不善是非生产性中毒的主要原因。

关键词：农药中毒流行病学监测分析

CLINICAL OBSERVATION ON 2785 CASES OF INFANTILE DIARRHEA TREATED BY MOXIBUSTION WITH MOXA CONE

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World Journal of Acupuncture-Moxibustion 1993年第2期3卷 37-38页

作者： Zhang Yisheng Department of Acupuncture,People’s Hospital of sheyang County,Jiangsu Province 224300,China

This paper reported that 2785 in-patients with infantile diarrhea were treatedwith moxa cone mainly on points Hegu(LI 4),Zhongwan(CV 12),Shenque(CV 8),Zusanli(ST36)and Pishu(EL 20).As a result,2520 cases(90.5%)were tr... 详细信息

关键词： Moxa cone Infantile diarrhea Moxibustion

急性呼吸窘迫综合征的诊断及呼吸支持治疗进展

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中国中西医结合急救杂志 2019年第2期26卷 247-250页

作者：刘涉泱周干广西壮族自治区河池市人民医院重症医学科广西壮族自治区河池547000

急性呼吸窘迫综合征(ARDS)是发生于危重疾病过程中,由于肺泡毛细血管内皮细胞和肺泡上皮细胞损伤引起的弥漫性肺间质及肺泡水肿,表现为进行性低氧血症、呼吸窘迫为特征的临床综合征,其总体发病率和病死率目前仍居高不下。随着人们对ARD... 详细信息

急性呼吸窘迫综合征(ARDS)是发生于危重疾病过程中,由于肺泡毛细血管内皮细胞和肺泡上皮细胞损伤引起的弥漫性肺间质及肺泡水肿,表现为进行性低氧血症、呼吸窘迫为特征的临床综合征,其总体发病率和病死率目前仍居高不下。随着人们对ARDS认识的不断深入,近年来,越来越多的研究奠定了 ARDS新的诊疗理念,早期呼吸功能支持、纠正低氧血症是ARDS治疗的首要任务,机械通气仍是ARDS患者的主要的呼吸支持手段,现就ARDS的诊断及呼吸支持治疗进展综述。

关键词：急性呼吸窘迫综合征诊断呼吸支持治疗

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LSY-1型裂纹深度测定仪

无损检测 1986年第10期 274-277页

作者： The Technology Section of Jiangsu sheyang Radio Factory 江苏射阳无线电厂技术科

本文介绍一种用直流电位法测量裂纹深度的新型仪器的工作原理、功能、特点及使用中的注意事项。由江苏射阳无线电厂和西安交通大学联合研究,并由江苏射阳无线电厂试制的测定成品或半成品零件

关键词：裂纹深度仪器 LSY-1 直流电位法测定仪钢试样裂纹长度