Results 121 to 130 of about 1,259,370 (186)

[Digital Drainage Systems in Postoperative Chest Tube Management
after Pulmonary Resection: Current Status and Future Perspectives]. [PDF]

Zhongguo Fei Ai Za Zhi
Wang Y, Shen H, Kang J, Sun M, Cui Y, Wang P.   +5 more
europepmc   +1 more source

下吸式气化炉中生物质气化发电的运行与测试

, 2003
对25kW下吸式生物质气化发电机组进行了运行测试。结果表明：下吸式生物质气化发电机组运行稳定，操作方便；所产生的燃气中焦油较低，可达1．9g／Nm^3；燃气中的气体成分为：H2，13％～14％；CO，19％～24％；CH4，1％～3％；CO2，11％～16％；N2，49％～50％。气体的高位热值为4326kJ／Nm^3～6005kJ／Nm^3；产气比为1．65Nm^3／kg～2．28Nm^3／kg Fuel；气化过程中碳的转化率为32．34％～43．36％；气化效率为41．19／5～78．85 ...
吴创之, 吴正舜, 马隆龙
core  

CO₂气体发生器

Gaoya dianqi, 1977
概略地介绍了该厂的二氧化碳气体发生器的结构和特点。该发生器既可作为二氧化碳气体保护焊的气源装置,也可作为常用的瓶装压缩二氧化碳气源的代用品。
doaj  

[Effects of <i>Baduanjin</i>, bedside cycle ergometer and balloon-blowing training on pulmonary function recovery following thoracoscopic surgery for lung cancer: a randomized controlled trial]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhang J, Yao S, Zhao Z, Sun X, Zhu Z, Li L, Wei H.   +6 more
europepmc   +1 more source

常压水煤气部分甲烷化生产城市煤气

, 1989
常压水煤气部分甲烷化生产城市煤气待填
待填写
core  

[Effect of Long-term Exposure to PM_2.5 and Its Chemical Components on Frailty Incidence in Middle-aged and Older Adults in China: A Prospective Cohort Study]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Chen K, Liu Q, Wu C, Yang L, Lin X.
europepmc   +1 more source

从合成气和氨气直接合成低碳胺类的铜系催化剂及其应用

, 2002
一种从合成气和氨气直接合成低碳胺类的铜系催化剂，由活性成分和载体组成，其特征在于催化剂以Al2O3为载体，以Cu元素为主活性组分，以Zn、Mn、稀土元素的氧化物作助剂；催化剂的各组分重量含量为：CuO活性组分5～60％；助剂1～30％。在本发明铜系催化剂上合成气和氨气可以高选择性地生成低碳胺类即一甲胺、二甲胺、三甲胺、乙胺和丙胺等产品，而且主要是一甲胺 ...
王毅, 丁云杰
core  

[Advances in growth impairment associated with pediatric respiratory diseases]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Chen XW, Chen DH.
europepmc   +1 more source

[Design and practice of instrumental analysis experiment： determination of borneol and camphor in <i>Chrysanthemum</i> by multiple headspace extraction-gas chromatography- mass spectrometry]. [PDF]

Se Pu
Li HX, Jiang WT, Zhou LH, Zheng H, Liu SS, Lei J.   +5 more
europepmc   +1 more source

[Effects of a lung recruitment maneuver combined with individualized positive end-expiratory pressure on postoperative pulmonary complications and perioperative hemodynamics in hypertensive patients undergoing pulmonary resection]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Shi K, Gu J, Chai H, Liu M, Liu H, Chen B, Zhang J.   +6 more
europepmc   +1 more source