Results 71 to 80 of about 63,635 (115)
, 1988 为同时测定高铬钢中的铬和锰,分别把铬氧化为Cr_2O_7~-,把锰氧化为MnO_4~-然后进行分光光度测定。以往测定需经复杂的计算,本法采用高氯酸溶样并氧化铬,高碘酸盐氧化锰,以双波长法同时测定铬和锰,方法快速准确。可以满足生产试验要求。测定范围Cr2～25％,Mn0.1～2 ...
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[Applications and prospects of biodegradable rare earth magnesium alloys as bone implant materials]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiYue H, Zhu X, Gao Z, Sun Z.
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[Expert consensus on diagnosis and management of neurofibromatosis type 1 (2021 edition)]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2021 National Multi-Center Treatment Collaboration Group For Neurofibromatosis Type +1 more
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[Applications of ion chromatography for the analysis of Chinese herbal medicine components]. [PDF]
Se PuZhang B +5 more
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[Research advances of metabolomics in early diagnosis of hepatocellular carcinoma]. [PDF]
Zhonghua Gan Zang Bing Za Zhi, 2022 Liao XM, Zhao SR, Dai WC, Fan R.
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, 2013 根据高铬型钒渣物相特征,采用NaOH亚熔盐液相氧化法提取高铬钒渣中的钒铬,实现钒铬的高效低成本低温同步提取。系统考察NaOH亚熔盐体系反应温度、碱矿质量比、搅拌转速等工艺参数对钒渣分解过程的影响,获得最优工艺参数为:温度220℃,NaOH浓度85%,碱矿比10∶1,搅拌转速950 r/min,常压通氧气流量1 L/min,反应时间6 h;钒、铬的浸出率分别达到95%和90%以上,实现了高铬钒渣中钒铬共提,为高铬型钒渣中钒铬的同步提取提供了一条可行途径 ...
潘自维 +6 more
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[Finite element analysis of tibial fracture risk following lateral unicompartmental knee arthroplasty under varying bone conditions]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLi Z, Huang T, Xu Y, Sun X.
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[A case of skin ulcers secondary to extensive burns caused by flame and heavy metal-containing hydrothermal fluids]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023 Dong HF, Huang X, Wu JY, Li XH.
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, 2006 针对激光淬火基体后再镀铬复合工艺提高镀铬身管寿命的实际工程问题,采用多裂纹拉伸技术证明该复合镀铬工艺可以提高界面剪切强度,并从材料学角度给予解释.离子冲击技术对界面强度的定性分析表明:激光淬火基体在消除铬层和基体之间过渡层的同时也提高了界面附近材料的强度.化学腐蚀去基体法研究表明,铬层界面材料强度的提高是晶粒细化的结果 ...
张国祥 +4 more
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