Results 51 to 60 of about 140,736 (108)

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

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Shan X, Wang H, Lu J, Feng Z, Li H, Tian Z, Zhuang K, Zhou S, Zhang H.   +8 more
europepmc   +1 more source

重铬酸钠溶液分解碳酸钙制取铬酸钙

, 2005
介绍了一种制取铬酸钙的新方法,利用重铬酸钠溶液分解碳酸钙,可以得到高纯度的铬酸钙. 实验表明,温度和浓度是影响碳酸钙分解的关键因素,当重铬酸钠浓度大于60%、重铬酸钠与碳酸钙摩尔比大于1.05:1时,常压沸腾条件下即可完全分解碳酸钙,制得纯度99.5%的铬酸钙,收率接近100%. 分解过程中产生的二氧化碳气体可用于碳化分离铬酸钙后的铬酸钠溶液再生重铬酸钠,循环利用.
李佐虎, 王天贵
core  

[Comparative study on the treatment of molar-incisor hypomineralization]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Shan X, Yang Q, Yang X, Yang Y, Ma Y, Zhao Z, Li R.   +6 more
europepmc   +1 more source

[Preparation and <i>in vitro</i> biological performance evaluation of tannic acid-Brushite <i>in situ</i> composite bone cement material]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zeng C, Tang J, Li T, Gao W.
europepmc   +1 more source

贡嘎山酸性土壤微生物量磷紧密关联碳酸氢钠提取态有机磷

, 2017
有效磷是土壤中最重要的磷组分,被广泛用于评估各种生态系统的土壤磷营养。然而,很少有研究基于野外数据评估有效磷的来源。本研究通过野外调查和室内试验,展示和评估了微生物量磷(MBP)和微生物群落对贡嘎山酸性土中有效磷组分的关联性。结果发现,微生物功能组脂肪酸显著解释有效磷变异性,尤其细菌脂肪酸强烈关联有效磷。与Hedley磷连续提取法中其他有效磷相比,仅碳酸氢钠提取态有机磷(NaHCO_3-Po)强烈关联MBP。本研究的数据分析、实验结果和以往的研究结果证明MBP与NaHCO_3 ...
李娜, 孙宏洋, 周俊, 吴艳宏, 邴海健   +4 more
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[Research on the microhardness and microstructure of permanent tooth enamel in childhood]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Gu Q, Jiang W, Liu Y, Liu L, Gao L.
europepmc   +1 more source

[Chinese expert consensus on the diagnosis and treatment of Burkitt lymphoma (2026)]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Lymphoid Disease Group, Chinese Society of Hematology, Chinese Medical Association, Lymphoma Expert Committee of Chinese Society of Clinical Oncology (CSCO).   +3 more
europepmc   +1 more source

[<i>Suanzaoren</i> Decoction inhibits neuroinflammation and alleviates hippocampal neuronal injury in APP/PS1 transgenic mice by regulating the Hippo-YAP pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Niu Q, Wu D, Lai B, Chen J, Wang Z, Long Q.   +5 more
europepmc   +1 more source

Effect of sodium fluoride solution on the hydrolysis of CaHPO_4·2H_2O and the solubility of its hydrolysate

, 2001
[中文文摘]降低牙矿物质的溶解度是防止龋齿的重要方法之一 .氟对于羟基磷灰石 ( HAP)溶解度影响的研究已有报道 ,然而氟对于牙矿物质中的其它基本成分 ,如二水磷酸氢钙 ( DCPD)等溶解度的影响则研究较少 .本文以 XRD、SEM等为表征手段 ,研究了 37℃下 DCPD在不同浓度的 Na F溶液中水解时的 p H、氟离子浓度变化规律及转化产物 ,并与 HAP在相同条件下的结果进行对比 .以恒 p H的方法对 DCPD、HAP及其转化产物的溶解性质进行比较 .实验结果表明 ,DCPD在 Na ...
冯祖德, 林昌健, 陈菲
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[Quercetin, a key bioactive component of Zuogui Pill, protects against Alzheimer<b>'</b>s disease by regulating the PI3K/Akt signaling pathway]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Li G, Li P, Huang L, Zhu J, Qin X, Lu Y.
europepmc   +1 more source