Results 101 to 110 of about 762,263 (157)

[Advances in oral and craniofacial bone regeneration modulated by stem cells and biomaterials]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li Z, Lv L, Zhang X, Xia D, Zhang P, Liu Y, Zhou Y.   +6 more
europepmc   +1 more source

湘中丘陵区4个树种人工纯林土壤-微生物-胞外酶C∶N∶P化学计量特征

Shuitu Baochi Xuebao
目的不同树种人工林因养分吸收利用策略的差异，导致土壤碳(C)、氮(N)、磷(P)质量分数及其化学计量比的改变显著影响土壤微生物活性，土壤微生物是否通过调整自身生物量和胞外酶化学计量比适应土壤的变化仍不明确。为探究不同树种人工林对土壤微生物生物量和胞外酶活性的影响，研究土壤-微生物-胞外酶C∶N∶P化学计量比之间的协变性。方法以湘中丘陵区土壤发育、经营历史一致，不同生活型的4个树种[针叶树马尾松(Pinus massoniana)、落叶阔叶树枫香(Liquidaar formosana)、常绿阔叶树木荷 ...
卢巧露, 方晰, 范世才, 孙龙, 孙百慧, 梁婷婷, 李毅   +6 more
doaj  

[Determination of 13 prohibited alkaloids in essential oil-based cosmetics by ultra performance liquid chromatography-tandem mass spectrometry combining QuEChERS purification]. [PDF]

Se Pu
Liu Z, Wang YM, Pan JB, Zong LL, Song YH, Sun XJ, Chen HY.   +6 more
europepmc   +1 more source

[Petroleum ether fraction of <i>Myrica nana</i> roots relieves spasmodic abdominal pain in mice by inhibiting intestinal smooth muscle spasm]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Yang S, Chen W, Chen X, Tian K, Xiong Y, Sun J, Huang L, Huang X, Wang Z.   +8 more
europepmc   +1 more source

生物诱导子调节植物组织次生代谢的研究

, 1999
论述了生物诱导子对植物组织次生代谢的调节作用，包括生物诱导子的作用机制 ...
刘春朝, 赵兵, 徐霞, 王玉春, 欧阳藩, 叶和春, 李国凤   +6 more
core  

[Bifunctional biomaterials: An innovative strategy for synergistic bone tumor therapy and bone regeneration]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Feng W, Chang B, Wang C, Fan B.
europepmc   +1 more source

[Determination of atmospheric intermediate volatility organic compounds with thermal desorption-flow modulator comprehensive two-dimensional gas chromatography- time-of-flight mass spectrometry]. [PDF]

Se Pu
Wang R, Li YJ, Wang JH, Ma CW, Jiang JK.
europepmc   +1 more source

生物质基的石墨化碳及碳-碳复合材料的微波制备方法

, 2009
本发明涉及石墨碳，具体地说是一种以PPy/生物质复合物为碳化前驱物，在微波作用下快速碳化并石墨化，制备大比表面积的石墨复合材料的非硬模板方法。具体制备方法是：首先，采用三氯化铁为催化剂，采用蒸汽相聚合技术制备出Fe/PPy/生物质复合物；其次，将制备的Fe/PPy/生物质复合物进行微波碳化处理；最后，样品经过酸处理，除去生成的碳化铁，得到高比表面积的石墨化碳材料。采用类似的方法，申请人还成功地制备出了金属碳化物/石墨化碳复合材料 ...
包信和, 王春雷, 马 丁
core  

[Comparative analysis of microbial communities in different oral ecological niches of preschool children]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Liu J, Sun Y, Wu J, Tang S, Ding G.
europepmc   +1 more source

[Image-guided application of plant pigment patch and laser microdot ablation for surface marking in radiotherapy for breast cancer: a randomized controlled trial]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Fang L, Xie D, Huang D, DU Q, DU S, Zhu T, Sun H.   +6 more
europepmc   +1 more source