检索结果-南通市图书馆

Process Induced stress for CMOs Performance Improvement

在线全文

学校读者我要写书评

暂无评论

Process Induced Stress for CMOS Performance Improvement

Influence of Dimensions of UHMW-PE Protuberances on sliding Resistance and Normal Adhesion of Bangkok Clay soil to Biomimetic Plates

2006 8th International Conference on solid-state and Integrated Circuit Technology

作者： s.Fang s.s.Tan T.Dyer Z.Luo J.Yan J.J.Kim N.Rovedo Z.Lun J.Yuan X.Chen v.Chan T.J.Tang R.Amos H.Ng M.Ieong s.Iyer s.Crowder IBM semiconductor Research and Development Center(sRDC) Hopewell JunctionNY 12533 Chartered semiconductor Manufacturing Infineon Technologies AG samsung Electronics Co. Ltd

＜正＞The integration of 3 major techniques of process induced stress,stress memory technique（sMT）,dual stress liners （DsL）,and stress proximity technique（sPT）,has been demonstrate for advanced CMOs *** device p... 详细信息

ISBN: (纸本)1424401607

关键词： CMOs process surface-mount technology Tensile stress Compressive stress DsL CMOs technology Costs MOsFET circuits Electron mobility Capacitive sensors

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2006年第2期3卷 63-71页

作者： P.soni v.M.salokhe Agricultural systems and Engineering Asian Institute of TechnologyP.O.Box 4 Klong Luang Pathumthani 12120Thailand Agricultural systems and Engineering Asian Institute of Technology P.O. Box 4Klong LuangPathumthani 12120Thailand

A number of investigations into application of polymers for macro-morphological modification of tool surface have been carried out. These researches, with extensive stress on convex or domed protuberations as one of the widely used construction units, have tried to harness benefits from using polymers in agriculture. Ultra high molecular weight polyethylene （UHMW-PE） has proved an emerging polymer in its application to reduce soil adhesion. This research was conducted to study the effect of shape （flat, semi-spherical, semi-oblate, semi short-prolate and semi long-prolate） and dimensions （base diameter and dome height） on sliding resistance and normal adhesion of biomimetic plates. To incorporate both shape and size, a dimensionless ratio of height to diameter （HDR） was introduced to characterize the effect of construction unit＇s physique. Experiments were conducted in Bangkok clay soil with dry （ 19.8% d.b.）, sticky （36.9% d.b.） and flooded （60.1% d.b.） soil conditions respectively. soil at sticky limit exhibited the highest sliding resistance （77.8 N） and normal adhesion （3 kPa to 7 kPa）, whereas these values were 61.7 N and 〈0.2 kPa in dry, and 53.7 N and 0.5 kPa to 1.5 kPa in flooded soil conditions. Protuberances with HDR ≤ 0.5 lowered sliding resistance by 10% - 30% and the same reduced normal adhesion by 10% - 60%. The amount of reduction in both sliding resistance and normal adhesion was higher in flooded soil. Lighter normal loads obviously produced lesser resistance and adhesion.

关键词： biomimetics UHMW-PE HDR convex domed protuberances sliding resistance normal adhesion Bangkok clay soil

在线全文

学校读者我要写书评

暂无评论

三级跳远技术之比较

山东体育科技 1991年第4期13卷 76-77页

作者： s.sidorenRo v.Papanov 秦云张岩

三级跳运动的发展趋势是,运动员越来越注意根据自己的特点来准备比赛。这是合乎情理的,因为既没有一种能适应所有运动员的技巧,也没有两个运动员达到了同一个预备水准,同时又具备相等运动能力的情况。在找到自己的最佳预备方式和方法之后。

关键词：运动技巧跳跃能力身体重心康利跨步发展趋势个人特色典型实例米/秒秦云

在线全文

学校读者我要写书评

暂无评论

关于山羊由多疣毛癣菌引起的轮癣的调查报告

河南科技大学学报(农学版) 1981年 89-90页

作者： v.s.Pandey Mahin 武大椿张健

山羊轮癣被认为是一种罕见的病例,并且很少发表过有价值的报导。这促使我们从摩洛哥调查和报告这一病例。材料和方法在摩洛哥的阿特拉斯高山中心区,对9个农场的322只土种山羊作轮癣调查,除用萨布罗氏琼脂培养外,还用显微镜观察皮屑和毛... 详细信息

山羊轮癣被认为是一种罕见的病例,并且很少发表过有价值的报导。这促使我们从摩洛哥调查和报告这一病例。材料和方法在摩洛哥的阿特拉斯高山中心区,对9个农场的322只土种山羊作轮癣调查,除用萨布罗氏琼脂培养外,还用显微镜观察皮屑和毛,确定是皮癣菌。在13只2—5月龄的患病山羊上研究了身体不同部位损伤的分布。结果在所有农场,只是2—12月龄之间的山羊被感染。早期患处呈典型的圆形,过一定时期渐渐融合,出现由苍白色薄片物覆盖着的不规则的大斑块。多疣毛癣菌是在所有农场中调查确定的皮癣菌。发病率在10—40％之间。平均数为17.7％(表1)。患羊身体上不同部位感染的百分数如下:颈100％,肩和后肢77％,前肢、腰和耳62％,躯干和尾54％,脸和腰部46％,口部、颈下垂皮、体侧、背和腹38％,眼周围31％,头和会阴部23％,颌骨间隙15％。被调查的13只羊中,有两只已感染到全身,4只身上感染8一14处,3只感染7处,4只感染2—6处。

关键词：毛癣菌月龄农场山羊皮癣菌

Heavy metal stress induced hyperglycemia in blue swimmer crab, Portunus pelagicus

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Oceanologica sinica 2018年第5期37卷 47-53页

作者： sARAvANAN R. sUGUMAR v. BEEMA MAHIN M.I. Department of Oceanography and Coastal Area studies Alagappa UniversityThondi Campus

The study was to find out the effect of cadmium and mercury on levels of hemolymph glucose, crustacean hyperglycemic hormone（CHH） and hepatopancreas glycogen in the blue swimmer crab Portunus pelagicus. The experiments were performed in both intact and eyestalk ablated crabs. Quantification of CHH was done by the indirect ELIsA with the aid of primary anti-Carcinus maenas-CHH antibody. Higher glucose concentration was observed on exposure to 8×10^–6 of cadmium（（825.6±5.42） μg/m L） and 6×10^–6 of mercury（（90.5±6.25） μg/m L）after 48 h and 24 h respectively. Higher level of hemolymph glucose was observed in eyestalk intact crabs on exposure to cadmium and mercury than eyestalk ablated crabs. Decrease in the levels of CHH was observed in both eyestalk intact and ablated crabs on heavy metal exposure. Decline of the hepatopancreas glycogen level was also witnessed with the exposure to heavy metal, which validated its utilization in the production of glucose. Thus this study brings to light, the variations in hemolymph glucose, CHH and hepatopancreas glycogen on heavy metal stress. These carbohydrate metabolites can be used as biomarkers in assessing heavy metal contamination in water bodies.

关键词： crustacean hyperglycemic hormone cadmium mercury decapod crustaceans blue swimmer crab

在线全文

学校读者我要写书评

暂无评论

如何评价热交换器的性能及检验设计计算

化工设备与管道 1983年第1期 17-19页

作者： P.s.v.Kurma Rao 郑奎山锦州石油六厂情报室

分流热交换器被广泛地应用于化学工业、石油化学工业和加工工业中。在这些工业中壳体侧面压降是设计的准则。典型的1—1分流交换器及其温度图如图1所示。这种热交换器的性能评价也同它的设计一样重要并能用于检验设计计算。性能评价的... 详细信息

分流热交换器被广泛地应用于化学工业、石油化学工业和加工工业中。在这些工业中壳体侧面压降是设计的准则。典型的1—1分流交换器及其温度图如图1所示。这种热交换器的性能评价也同它的设计一样重要并能用于检验设计计算。性能评价的目的在于估算工作流体的出口温度和传热量。

关键词：热交换器热流体换热器传热率传热性质冷流体流体出口温度设计计算

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

干法烟气净化用氧化铝的物理化学性能

轻金属 1986年第11期 37-39页

作者： v.s.Burkat 岳勇王家庆

基于氧化铝吸附HF的观点,研究氧化铝的物理特性、结构和吸附能力。对于氧化铝的粒度组成、物相组成、比表面积、微孔结构以及这些因素的分布作了不完全地研究。在与工业生产相符的HF分压下研究了HF吸附等温线。

关键词：氧化铝氟化氢粒度组成粒级组成物相组成铝化合物氟化物比表面比表面积微孔结构

spectrally Efficient Multi-Carrier Modulation Using Gabor Transform

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Wireless Engineering and Technology 2013年第2期4卷 112-116页

作者： shravan sriram Naveenkumar vijayakumar P. Aditya Kumar Akash s. shetty v. P. Prasshanth K. A. Narayanankutty Department of Electronics and Communication Engineering Amrita School of Engineering Amrita Vishwa Vidyapeetham University Coimbatore India

Non Orthogonal Frequency Division Multiplexing (NOFDM) systems make use of a transmission signal set which is not restricted to orthonormal bases unlike previous OFDM systems. The usage of non-orthogonal bases generally results in a trade-off between Bit Error Rate (BER) and receiver complexity. This paper studies the use of Gabor based on designing a spectrally Efficient Multi-Carrier Modulation scheme. Using Gabor Transform with a specific Gaussian envelope;we derive the expected BER-sNR performance. The spectral usage of such a NOFDM system when affected by a channel that imparts Additive White Gaussian Noise (AWGN) is estimated. We compare the obtained results with an OFDM system and observe that with comparable BER performance, this system gives a better spectral usage. The effect of window length on spectral usage is also analyzed.

关键词： Non-Orthogonal Frequency Division Multiplexing (NOFDM) spectrally Efficient Frequency Division Multiplexing (sEFDM) Gabor Transform OFDM Reisz Bases Multi Carrier Modulation (MCM)

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

半导体器件可靠性估算的序列试验法

雷达与对抗 1982年第6期 45-49页

作者： v.s.肯达高兆麒

器件的失效率λ可用阿里尼乌斯方程λ=Ae-E/KT决定。器件所能承受的热循环次数也可认为是服从指数模型N=φeaT的。利用这些模型获得了热疲劳寿命试验的序列法。此法利用数学方程获得了平均无故障时间（MTBF）相对于热循环次数的退化率δ... 详细信息

器件的失效率λ可用阿里尼乌斯方程λ=Ae-E/KT决定。器件所能承受的热循环次数也可认为是服从指数模型N=φeaT的。利用这些模型获得了热疲劳寿命试验的序列法。此法利用数学方程获得了平均无故障时间（MTBF）相对于热循环次数的退化率δ=Pexp[p△T+（q/T）]。换句话说,预热循环能使器件的MTBF减少。

关键词：试验法阿里序列半导体器件电子设备 MTBF 指数模型经济模型加速寿命试验热循环试验温度循环试验方程结温热疲劳试验失效率内部质量正态分布 Gauss 分布尼乌