Results 91 to 100 of about 171,341 (148)

[Experimental teaching design of instrument analysis for undergraduate study： detection of bifenthrin pesticide residues in tea by response surface methodology-optimized QuEChERS combined with gas chromatography-mass spectrometry]. [PDF]

Se Pu
Gu CX.
europepmc   +1 more source

一种提高质子交换膜燃料电池除水有效性的方法

, 2010
本发明可提高质子交换膜燃料电池的除水有效性，以流道内气体的流速为参考，针对不同板型、堆型的电池进行吹扫除水，本发明适用于不论以何种方式进行除水的所有板型、堆型的电堆的除水效果考察 ...
侯俊波, 邵志刚, 衣宝廉, 俞红梅, 徐丽双   +4 more
core  

[Research progress of electroactivity graphene-based materials in bone repair]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Kang R, Yuan W, Zhu Y.
europepmc   +1 more source

熔融碳酸盐燃料电池水溶性隔膜的制备和性能

, 2005
用水溶性粘结剂聚乙烯醇(WA)和α-LiAlO2粉料等制备熔融碳酸盐燃料电池水溶性隔膜(PVA隔膜)．粉料的水合作用导致PVA隔膜的孔隙率和热失重均比WB(聚乙烯醇缩丁醛)隔膜的大，但前者的最大孔径却比后者的小．当反应气压为0．9MPa，反应气体利用率为20％，分别于300和428．57mA·cm^-2下放电时，PVA隔膜电池输出电压分别为0．849和0．739V；输出功率密度分别为254．7和316．7mW·cm^-2，高于PVB隔膜电池的．经10次热循环启动，电池性能出现下降-回升-稳定的变化 ...
衣宝廉, 程谟杰, 林化新
core  

[Effect of composite graphene-protein hydrogels on neural regeneration after spinal cord injury in rats]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang Z, Fan Z, Wang X, Zhu Z.
europepmc   +1 more source

[Development of a machine learning-based ionization efficiency prediction model for per- and polyfluoroalkyl substances and its application in semi-quantitative analysis]. [PDF]

Se Pu
Sun SZ, Li YY, Gao Y, Li KC, Chen Z, Li XQ, Zhang QH.   +6 more
europepmc   +1 more source

电站锅炉受热面除灰新技术开发与应用

, 2001
中国科学院力学研究所开发成功的燃气脉冲除灰技术,采用一种高能量、脉冲式、干法除灰的新思路,从根本上克服了蒸汽和压缩空气吹灰的弱点.通过对可燃气体非稳态燃烧机制的研究,分析管道结构对火焰速度和冲击波压力的影响.本技术在深圳妈湾发电总厂的运行结果表明,与蒸汽吹灰相比,可使锅炉排烟温度下降10℃－15℃,空气预热器烟气阻力下降700Pa-800Pa,引风机电流平均降低20A,提高了机组运行热效率 ...
孙文超, 吴承康, 余立新, 朱颖, 刘培树   +4 more
core  

[Electroacupuncture at Baihui and Zusanli improves fear memory extinction in single prolonged stress mice by activating hippocampal astrocytes]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Chen X, Liu C, Yang S, Wang J, Cheng P, Yin H, Wang J, Zhu G.   +7 more
europepmc   +1 more source

[Clinical characteristics and therapeutic insights of pediatric allergic fungal rhinosinusitis]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Li C, Li Y, Xu Y, Wei Y, Zhang H, Cai F, Duan Q, Seng D.   +7 more
europepmc   +1 more source

[Electric-field modeling, simulation, and experimental analysis of multi-target temporal interference transcranial alternating current stimulation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Wang T, Cui C, Wei Y, Ji X, Xu G.
europepmc   +1 more source