, 2015 本发明公布了一种通过原位聚合的方法调控聚乳酸多孔膜微孔结构的方法。本发明方法首先将聚乳酸溶解在有机溶剂中，充分溶解后制成成膜前驱体溶液，在氮气保护下将双官能团单体和引发剂加入成膜前驱体溶液中进行原位聚合，反应结束后静置脱泡得到铸膜液。将铸膜液浇注到玻璃板上，得到初生膜，随后立即转移到去离子水浴中，浸没一定时间后得到成型的聚乳酸膜。通过控制原位聚合的时间可以实现聚乳酸膜支撑层结构逐渐由指状大孔结构向完全的互穿网络结构转变，具有高通量、高效选择性透过和较好的亲水性，适合作为血液透析膜 ...
朱丽静 +3 more
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[Clinical application effects of vertical mattress suture combined with teardrop-shaped end-to-side arterial anastomosis technique in free flap transplantation for repairing limb wounds]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiChen T +4 more
europepmc +1 more source
, 2005 本发明涉及微孔膜，具体地说是一种荷电微孔滤膜及亲和基膜的制备方法，按重量百分比计，以5～9％醋酸纤维素为制膜的基体材料，在45～70％丙酮/二甲基甲酰胺混合溶剂中，共混入0～15％聚阳离子化合物，以0～0.8％多异氰酸酯作为交联剂在溶液中反应，再添加15～30％甘油作为添加剂，刮膜后在30℃～70℃、相对湿度高于95％气氛中吸湿并挥发溶剂分相凝胶1～30min，成膜固化。本发明的优点为：制得的膜应用范围广、性能稳定，反应条件温和 ...
李晖 +5 more
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[Optical coherence tomography angiography image segmentation based on multi-scale dilated convolution and dual attention network]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiZeng Q, Xiao Z, He B, Peng R.
europepmc +1 more source
[Expert consensus on reconstruction treatment for irreparable posterosuperior massive rotator cuff tears]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiShoulder Joint Study Group Of The Fifth Committee Of The Chinese Society Of Sports Medicine Chinese Medical Association.
europepmc +1 more source
, 2011 本发明涉及一种质子交换膜燃料电池膜内水含量的在线测量方法，具体的说是在质子交换膜两侧分别加入一根微型探针来测量燃料电池运行过程中膜两侧的电压降，之后通过相关理论关联实现对膜内水含量的表征。本发明能够对燃料电池运行过程中膜内的水含量进行在线监测，并适用于稳态和暂态过程，且该结构具有良好的稳定性 ...
邵志刚 +3 more
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[Image-guided application of plant pigment patch and laser microdot ablation for surface marking in radiotherapy for breast cancer: a randomized controlled trial]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoFang L +6 more
europepmc +1 more source
[Current status of intrauterine adhesion treatment and research progress in stem cell therapy]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanZhao M, Zhang H, Zhang Q, Huang Y.
europepmc +1 more source
[Establishment of rabbit model of benign circumferential esophageal stricture]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanMeng L, Huang Y, Yan X, Wang Y.
europepmc +1 more source
[Determination of seven tire antioxidants and their quinone oxidation products in fine particulate matter by high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuLiu F +5 more
europepmc +1 more source