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A procedure to design a preliminary wave rotor cycle for any application is presented. To complete a cycle with heat addition there are two separate-but related-design steps that must be performed. Se...
Longitudinally Stratified Combustion in Wave Rotors
Longitudinally Stratified Combustion Wave Rotors
2014/11/13
A wave rotor may be used as a pressure-gain combustor, effecting wave compression and expansion, and intermittent confined combustion, to enhance gas-turbine engine performance. It will be more compac...
Wave Cycle Design for Wave Rotor Gas Turbine Engines with Low NOx emissions
Wave Cycle Design Wave Rotor Gas Turbine Engines
2014/11/13
The wave rotor is a promising means of pressure-gain for gas turbine engines. This paper examines novel wave rotor topping cycles that incorporate low-NOx combustion strategies. This approach combines...
Consumer and Provider Responses to a Computerized Version of the Illness Management and Recovery Program
illness management and recovery computerized intervention web-based consumer usability
2014/11/10
Objective: To explore mental health consumer and provider responses to a computerized version of the Illness Management and Recovery (IMR) program.Methods: Semi-structured interviews were conducted to...
Effects of tissue hydration on nanoscale structural morphology and mechanics of individual Type I collagen fibrils in the Brtl mouse model of Osteogenesis Imperfecta
AFM Ultrastructure Genotype/phenotype D-periodic spacing Modulus Energy
2014/11/6
Type I collagen is the most abundant protein in mammals, and is a vital part of the extracellular matrix for numerous tissues. Despite collagen’s importance, little is known about its nanoscale morpho...
Elevated Mechanical Loading When Young Provides Lifelong Benefits to Cortical Bone Properties in Female Rats Independent of a Surgically Induced Menopause
d mechanical loading exercise menopause bone properties
2014/11/6
Exercise that mechanically loads the skeleton is advocated when young to enhance lifelong bone health. Whether the skeletal benefits of elevated loading when young persist into adulthood and after men...
In vivo reference point indentation reveals positive effects of raloxifene on mechanical properties following six months of treatment in skeletally mature beagle dogs
bone remodeling bone mechanics osteoporosis treatments indentation
2014/11/6
Raloxifene treatment has been shown previously to positively affect bone mechanical properties following one year of treatment in skeletally mature dogs. Reference point indentation (RPI) can be used ...
重组人p66Shc腺病毒抑制HeLa细胞增殖的机制研究
p66Shc HeLa细胞 活性氧 p53
2014/10/27
探讨重组人p66Shc腺病毒（AdenoⅩ-p66Shc）对宫颈癌HeLa细胞增殖的抑制作用及机制。 方法 MTT法检测细胞活力，DCFH-DA荧光探针检测活性氧（ROS）生成；ELISA检测8-羟基脱氧鸟苷（8-OHdG）含量；Annexin Ⅴ-FITC/PI荧光染色检测细胞凋亡率；Western blot检测相关蛋白表达；免疫共沉淀检测p66Shc与p53之间相互作...
GC测定安立生坦原料药中6种有机溶剂残留
顶空进样法 毛细管气相色谱法 有机溶剂残留
2014/10/27
建立测定安立生坦原料药中可能残留的6种有机溶剂(甲醇、乙醚、二氯甲烷、乙酸乙酯、1,4-二氧六环、N,N-二甲基甲酰胺)含量的检测方法。方法 采用顶空气相色谱法，色谱柱为DB-624 毛细管柱(30.0 m×0.53 mm，3.00 μm)，氢火焰离子化检测器(FID)，进样口温度250 ℃，检测器温度300 ℃；载气为高纯氮气，恒压模式，压力2 psi；柱温为升温程序，50 ℃保持10 min，...
重离子辐射引起的线粒体DNA突变定量分析
线粒体DNA 4 977大片段缺失 D310区点突变
2014/7/16
对重离子辐射引起的线粒体DNA突变进行定量分析。方法 使用X射线和重离子束对 人乳腺癌细胞MCF-7进行辐照，对照后细胞进行克隆存活分析；用real-time PCR定量检测线粒体DNA 4 977缺失，克隆测序法定量检测线粒体D310区突变。结果 克隆存活结果和辐照后D310多态性分布 显示重离子射线对MCF-7细胞的增殖抑制效果比X射线更为明显，引起的D310突变也更多，并且这些 突变体能在辐...
多孔分子印迹膜修饰的表面等离子体共振微囊藻毒素LR检测传感器
表面等离子体共振传感器 分子印迹膜 微囊藻毒素LR 水污染检测
2015/12/23
开发了一种多孔分子印迹膜修饰的表面等离子体共振(SPR)传感器,用于快速检测水中微囊藻毒素LR。研究了利用该传感器检测微囊藻毒素LR的方法。首先,通过原位聚合法在SPR传感芯片的裸金表面合成了微囊藻毒素LR的多孔分子印迹膜,制备出可以特异性捕获微囊藻毒素LR的SPR传感芯片。然后,利用Kretschmann棱镜耦合结构,构建了基于Kretschmann结构的波长调制型表面等离子体共振传感器。最后,...
基于噪声功率谱的CT图像噪声评价
噪声功率谱 标准差 噪声评价 图像分析
2014/11/17
设计并探讨基于噪声功率谱（NPS）的CT图像噪声评价方法。方法 改变CT图像扫描参数以及重建参数获取图像，采用NPS与传统标准差（SD）两种方法对该图像进行噪声检测，并对比两种检测结果。结果 NPS曲线幅值与层厚和剂量成反比，与重建算法的增强程度成正比。重建算法、层厚和剂量对噪声指数的影响能够在NPS曲线上得到明显的体现。结论 NPS能够从幅值与频率方面反应噪声变化，与SD方法相结合可形成更为完善...
树脂吸附法去除地黄水煎液中重金属砷
树脂吸附 砷去除 地黄水煎液
2014/10/27
采用树脂吸附法去除中药提取液中的重金属砷。方法 在大孔吸附树脂和阴离子交换树脂对砷盐溶液的静态吸附实验基础上，选取D273、D293、D201、D201×7 4种阴离子交换树脂，以砷去除率、固形物量损失率和砷去除率/固形物量损失率3个参数为评价指标，考察了其对地黄水煎液中砷的去除作用，进而研究了D293树脂吸附过程中的各因素(流速、高径比、温度、药液浓度等)及其交互项对树脂吸附去除砷的影响，最后对...
超高速超声成像的研究进展
剪切波弹性成像 超声检查 多普勒 造影剂
2014/11/17
近年来发展迅速的超高速超声成像可获得高达数千至上万帧/秒的帧频，具有绝佳的时间分辨力，可以实现传统超声的帧频无法获得的成像结果。本文对超高速成像的基本原理及其目前在剪切波弹性成像、多普勒成像、心血管成像、造影成像等领域的应用进展进行综述。
茶多酚EGCG对小鼠棕色脂肪代谢的影响
表没食子儿茶素没食子酸酯 棕色脂肪组织 脱偶联蛋白1
2014/5/19
随着对棕色脂肪组织（BAT）在成人体内具有生物学功能的肯定，棕色脂肪已经成为当今医学研究的热点。采用动物实验、病理组织学方法及免疫组化，观察了表没食子儿茶素没食子酸酯（EGCG）对棕色脂肪代谢的影响。结果表明，在体重和鼠龄相近时，不同种属小鼠肩甲间棕色脂肪组织HE 染色后的形态不同，C57BL/6 脂肪细胞中的空泡大，胞浆含量少，BALB/c 小鼠脂肪细胞中的空泡小，胞浆含量多，昆明小鼠居中。给昆...