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During the last 40Ma the marine 87 Sr/ 86 Sr record shows a rapid rise (from 0 7078 to 0 7092) [1]......
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在最近举行的Inspex展览会上,洛氏硬度试验机有限公司推出了新的系列产品——Wilson500系列洛氏硬度试验机。这种试验机配备有Wil......
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目的:运用基因芯片技术研究6周有氧跑台运动对C57BL/6小鼠骨骼肌基因表达的影响,探究长期有氧运动引起小鼠骨骼肌组织的适应性改变......
目的探讨声脉冲辐射力弹性成像(ARFI)技术对伴有钙化的甲状腺结节良恶性的鉴别诊断价值。方法对52例患者共54个伴有钙化的甲状腺结......
目的 探讨128层螺旋CT仿真内窥镜技术对严重钙化的冠状动脉管腔狭窄程度判断的价值.方法 收集分别行冠状动脉成像及DSA检查患者54......
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原生质体作为单细胞且具有全能性,为研究植物细胞壁生物合成提供了独特的视角和模型。原生质体细胞壁再生过程复杂,涉及诸多细胞信......
优化矿化方式是提高微生物矿化沉积(MICP)修复再生骨料效果的有效途径。本研究通过改变供氧剂浓度和再生骨料在培养液中的浸泡位置......
以二氧化钛煅烧过程热工特性研究为依据，设计二氧化钛煅烧系统及其煅烧窑温度控制系统，并在生产中测试转窑内的温度梯度及煅烧带温度......
以R32与R125为对比制冷剂工质，用基于Lattice-Boltzmann方法的新算法计算了混合制冷刑R410A与R407C的动力粘度。分析了误差，探讨了提......
目的探讨骨化三醇治疗2型糖尿病肾病的效果及对尿白蛋白排泄率(UAER)、同型半胱氨酸(Hcy)、血尿酸(SUA)的影响。方法选择2015年1月......
为了克服气测敏感参数筛选困难及常规气测图板解释符合率低的问题,将主成分分析方法用于气测图板研制。以准噶尔盆地玛湖区百口泉......
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提出了一种电磁环网开环前后电网运行经济性的评价方法，建立了一套电磁环网开环运行的经济性评价指标体系，主要包括电网损耗、电网运......
本文对“七五”、“八五”、1995-2001年期间天津渔业技术进步对渔经济增长贡献份额进行测算分析，同时对2001～2010年渔业技术进步贡......
