, 2014 本发明涉及一种复合定形相变储热材料及其制备方法，属于复合材料技术领域。该复合材料以多孔材料为支撑材料，无机水合盐为相变材料，通过多孔材料的毛细吸附作用及表面活性剂的自组装将无机水合盐吸附入支撑材料的多孔结构中制备而成。本发明首先通过表面活性剂的乳化分散作用将熔融的无机水合盐相变材料如六水合氯化钙在超声条件下乳化分散，形成稳定的乳液；然后将膨胀石墨加入乳液中，分散均匀，并将其放入真空烘箱中，抽真空，室温下恒定30min，从而制得相变潜热高 ...
徐芬 +5 more
core
[A case of Berry syndrome associated with <i>SOX11</i>-related Coffin-Siris syndrome type 9]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiWang Y, Wang Z.
europepmc +1 more source
Cooperative Reconfiguration for a Reconfigurable Mobile Robot
, 2010 可变形机器人AMOEBA-I的主要特点是具有多种构形方式,但由于受地面条件等影响使得某些构形变换难以实现。为了减小变形阻力,增强机器人对环境的适应性,提出可变形机器人的协同变形方法。建立相应数学模型,分析机器人系统各部分在协同变形过程中的运动和力学特性,实现将变形阻力的一部分转化为变形的动力,完成5种特殊构形之间的相互变换。研究基于摄动分析方法的模型线性化方法,以减小计算复杂度。最后,给出可变形机器人协同变形性能评价指标,并通过仿真和试验验证协同变形方法的有效性 ...
李斌, 刘金国, 吴成东, 刘同林
core
[Pathophysiological mechanisms of coagulation dysfunction associated with liver disease]. [PDF]
Zhonghua Gan Zang Bing Za ZhiWang H, Chen X, Lu YY.
europepmc +1 more source
Jianzhu Gangjiegou Jinzhan为研究大跨度连续钢桁梁桥施工阶段的受力情况，对连续钢桁梁桥的竖向变形和关键节点应力进行了现场实测。依据变形协调原理，建立了节点实体与杆系相结合的多尺度数值分析模型，得到了桥梁成桥阶段的结构整体内力和局部节点受力情况，将桁杆变形和应力的实测值与有限元计算值进行了对比分析。结果表明，下弦杆竖向最大变形值小于6 cm，变形值与计算跨径之比小于1/2 300；杆件实测应力最大值为32 MPa，位于E8节点下弦杆附近。最大变形值和应力值均满足设计规定要求。下弦杆竖向变形实测值与计算值变化趋势基本一致 ...
安鹏, 王文炜
doaj
[A Review of Archaeological Studies on Dento-maxillofacial Deformities]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLuo G, Deng D, Zhou J, Zhou C.
europepmc +1 more source
[Analysis of complicating factors in endodontic microsurgery]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiTan X +9 more
europepmc +1 more source
[Niemann-Pick disease with two missense mutations in SMPD1 gene: a case report and literature review]. [PDF]
Zhonghua Xue Ye Xue Za ZhiWei Y, Guo H, Xu JN, Chen YY, Shi HX.
europepmc +1 more source
[Analysis and management of the influence of periapical lesion size on endodontic microsurgery]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiHuang X, Zeng K, Yang R, Wei X.
europepmc +1 more source
[Radiological characteristics and associated factors of single-level cervical disc herniation combining with focal ossification of posterior longitudinal ligament]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYe Y +5 more
europepmc +1 more source