Results 41 to 50 of about 27,053 (96)

[Application and research progress of three-dimentional printed porous titanium alloy after tumor resection]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022
Liu P, Gao Q, Lü L, Zhang W, Fan B.
europepmc   +1 more source

Fundamental Study on Preparation of Seeds and Product Quality Control in Cleaner Production Process of TiO2 Pigment

open access: yes, 2009
我国蕴藏着极其丰富的钛矿资源,二氧化钛是钛系最重要的产品之一,90%以上的钛资源用于生产钛白粉。二氧化钛,俗称钛白,是世界上性能最好的白色颜料,广泛应用于涂料﹑塑料﹑造纸等行业。硫酸法和氯化法是目前工业生产钛白粉的两种工艺,它们在生产过程中存在着排废量大、废物毒性大、对环境污染严重等问题。中国科学院过程工程研究所首次提出资源高效-清洁-综合利用的钛白清洁生产新技术,以取代传统的钛白生产方法,大幅度提高钛资源转化率,并实现反应介质循环再生利用。作为钛白新工艺的重要组成部分 ...
赵岩
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[Research progress of cementless prosthesis in total knee arthroplasty]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Tai W, Qi X, Wang B, Chai W.
europepmc   +1 more source

碱法钛白粉生产工艺中硫酸钛溶液的制备和水解

open access: yes, 2010
研究了碱法钛白粉清洁生产工艺中硫酸钛溶液的制备及水解。硫酸钛溶液制备过程中,通过试验及MATLAB拟合,确定了硫酸质量分数、原料用量与硫酸钛溶液质量浓度及酸度系数(F值)间的函数关系;水解过程中,考察了水解温度、酸度系数(F值)、硫酸钛质量浓度对水解的影响。在优化水解条件下,钛水解率达90%以上 ...
王丽娜, 薛天艳, 齐涛, 杨轩
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[Transcutaneous osseointegration for amputees: foundational principles and current concepts]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jason S H   +3 more
europepmc   +1 more source

[Clinical effects of expanded flap in repairing the wounds with exposed titanium mesh after cranioplasty with titanium mesh]. [PDF]

open access: yesZhonghua Shao Shang Za Zhi, 2021
Ji P   +8 more
europepmc   +1 more source

[Material design and temperature field simulation analysis of tumor radiofrequency ablation needle]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2022
Chen Z, Cui H, Lu Y, Lang J.
europepmc   +1 more source

[Advances in biodegradable medical magnesium alloys for orthopedic applications]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Shan X   +8 more
europepmc   +1 more source

论超声速燃烧

open access: yes, 1998
论述了超声速燃烧概念,提出了对超声速燃烧的两种不同理解,论述了超声速燃烧与亚声速燃烧的不同,指出了超声速燃烧传播机制的特点和等截面超声速燃烧加热量的限制。通过超声速流动中的燃烧分析,表明定常爆燃产生的熵增和总压损失随燃烧速度的增加而减少。还论述了在欠驱动弱斜爆轰解条件下,波角不受斜劈角控制,只决定于燃烧速度 ...
袁生学
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