中国浙江省余姚市田螺山遺跡出土木柱の放射性炭素年代

Numerous numbers of wooden poles standing in the excavating fields were exposed to visitors at the intermediate step during the excavation survey of the Tianluoshan Site, Yuyao city, Sekko Province, the Republic of China, when we visited the site three times on March 16, 2013, October 23, 2014, and September 11, 2016 for the research projects of the site. The site is located in the lowland that is used presently as patty fields. A part of the poles were used to construct log houses for residence of ancient people lived there. To develop the accurate chronology of the Tianluoshan Site, it is crucially required to obtain numerical ages, in addition to the multilayer boundaries assigned during the excavation survey. Thus we have collected more than 90 fragments from wooden artifacts and acorn residues in an acorn storage pit from the layers of nos. 3, 5, 6, 7 and 8 of the site, and measured their radiocarbon (14C) ages with a Tandetron accelerator mass spectrometer, at the Institute for Space- Earth Environmental Research, Nagoya University. The obtained 14C ages ranging from 5338±27 BP (sample no.15) to 6128±25 BP (sample no.54) were almost consistent with the order of the sediment layers of the site, except for four samples that are belonging to the layer no.5. The finally obtained calendar ages for relevant layers at the site are 6100−6300 cal BP, 6300−6500 cal BP, 6500−6800 cal BP, 6700−6900 cal BP and 6800−7000 cal BP for the layers nos. 3, 5, 6, 7 and 8, respectively.departmental bulletin pape

Clinico-Pathological Studies on the Effects of Induction Chemotherapy for Squamous Cell Carcinoma of the Oral Regions : Five Cases of Gingival Cancer Showed Complete Response to Therapy

Five lower gingival cancer cases on response to induction chemotherapy were investigated clinicopathologically. The cases, clinically classified by TNM system (UICC, 1989) , were diagnosed as T1(1), T2(2) and T4(2), respectively. The clinical stage of the tumors showed similar results to those of T-category. In the growth pattern of the tumor, 3 cases were classified as exophytic type and 2 cases as endophytic type. Histologically, 2 cases were diagnosed as the well differentiated type and 3 cases as moderately differentiated type. The degree of mononuclear cell infiltration in the stroma of the tumor was prominent in all 5 cases. In the mode of cancer cell invasion, all 5 cases showed mode-1 or mode-2. Three cases were graded as low and 2 as moderate malignancy according to clinicopathologica classification. All 5 cases were operated on by marginal resection of the mandible. The postoperative courses following treatment were satisfactory except por minor functional disturbances. From the results of this investigation, oral cancer therapy was considered as a very useful method for the patients to maintain their quality of life, especially in the case of low or moderate grade malignancy showing marked effectiveness to the induction chemotherapy.論文http://purl.org/coar/resource_type/c_650

用作锂/钠离子电池负极材料的超薄硫化锑纳米片的制备方法

本发明提供了使用可量产的化学剥离法制备多层二维硫化锑纳米片的方法。该二维硫化锑纳米片可被开发为锂离子电池和钠离子电池两者中的双功能负极材料。由二维硫化锑纳米片带来的独特结构和功能特征可以提供短的电子/离子扩散路径、丰富的表面氧化还原反应活性位点和大的纵横比，从而实现优异的电化学性能

黑磷/还原氧化石墨烯复合电极及其制备方法以及包括该复合电极的柔性锂离子电池

本发明提供了一种制备黑磷/还原氧化石墨烯复合电极的方法，该方法包括以下步骤：i)在溶液中将黑磷剥离成黑磷片分散液；ii)使块状石墨膨胀并氧化成氧化石墨烯片；iii)将所述黑磷片分散液和所述氧化石墨烯片混合以形成均匀分散液；iv)对所述均匀分散液进行真空抽滤以形成黑磷/氧化石墨烯膜；以及v)对所述黑磷/氧化石墨烯膜进行化学还原、干燥和任选地预锂化，以形成所述柔性黑磷/还原氧化石墨烯复合电极。另外，本发明还提供了一种黑磷/还原氧化石墨烯复合电极和包括该复合电极的柔性锂离子电池。根据本发明的柔性锂离子电池同时具有高质量能量密度和高体积能量密度，并且在工作弯曲状态下在100个循环之后没有明显的衰减

用于制造气凝胶的水溶液、由其制造的气凝胶及其用途

本发明涉及一种具有多孔取向通道的各向异性复合气凝胶。通过合理选择用于制造气凝胶的水溶液的共溶剂以及优化所述水溶液的组成来调整气凝胶的微观结构，所制成的气凝胶实现了超低热导率和高的光反射率的优异性能，并且实现了比目前市场上的聚合物泡沫或二氧化硅气凝胶更好的隔热性能，使其不仅能够用作建筑物隔热材料用于节能建筑，而且可以作为保温包装材料，用于药物运输、食品储存以及极地、外太空等极端条件场景

电子封装中超声波线焊机理的分子动力学模拟研究

通過對超聲波線焊中的界面接觸,以及拉脫實驗中的界面分離現象進行分子動力學模擬,從微觀角度探討了超聲波線焊的機理。由于實際焊接區域處于平面應變的受力狀態,模擬時建立兩維的原子模型,采用Sutton-Chen勢能函數描述金原子之間的相互作用。模擬結果表明,超聲波線焊時由于金線與焊盤之間的緊密接觸,產生強大的原子間作用力,從而導致牢固的界面鍵合,這是超聲波線焊的微觀機理。將有限元分析和分子動力學模擬相結合,可以計算超聲波線焊的界面焊接強度,其結果與拉脫實驗相符合。 The microscopic mechanism of ultrasonic wire bonding is investigated by molecular dynamics simulation on the interfacial contact and adhesion. Considering that the real bonding area is in the state of plane strain, a two-dimensional atomic model is presented. Sutton-Chen potential is adopted for the interaction between gold atoms. Computational results indicate that a strong adhesion generates at the interface after intimate contact between the wire and the bond pad, and the adhesive force should be the mechanism of ultrasonic wire bonding. Combining the real contact area from finite element analysis with the adhesive force from molecular dynamics simulation, the bonding strength of ultrasonic wire bonding is estimated. © (2010) Trans Tech Publications

分级多孔纳米碳/硫复合阴极的可调节且可量产的合成

一种分级多孔碳纳米纤维/硫复合材料(HPCNF/S)，其可用于制造锂硫电池，该锂硫电池阴极由具有分级多孔碳纳米纤维/硫(HPCNF/S)复合材料、导电添加剂、聚偏二氟乙烯粘合剂和铝箔集流体形成。HPCNF是通过由聚合物前体静电纺丝成聚丙烯腈/乙酰丙酮铁(III)纯纤维，然后进行稳定化、碳化和酸腐蚀以形成多孔CNF，对多孔CNF进行化学活化以形成分级多孔碳纳米纤维(HPCNF)，并通过熔融‑扩散进行HPCNF孔隙中硫的包封而形成的。当用作电池时，HPCNF/S复合材料用作阴极

一种制备银纳米颗粒修饰的碳纳米管的方法

本发明涉及一种制备银纳米颗粒修饰的碳纳米管的方法。通过用超声波处理碳纳米管而将其分散在有机溶剂中，然后将此混合液升温并和含有银离子的有机溶液混合从而制得新型的纳米杂化材料。本发明所制备的产物以碳纳米管为模板，同时在其表面修饰有分散单一且直径小于10纳米的银颗粒。本发明具有方法简单易行、产物不含杂质且对环境友好等优点。The invention relates to a method for preparing a carbon nano tube modified by silver nano particles, comprising processing the carbon nano tube by ultrasonic to disperse the carbon nano tube in the organic solvent, heating the resulting mixed solution, and mixing the mixed solution with an organic solution containing sliver ions to prepare the novel nano hybridized material. The product of the invention takes the carbon nano tube as template, simultaneously, the surface of the product is modified by disperse single silver particles having the diameters of less than 10 nm. The method of the invention is simple and easy, and the product does not contain impurity and is friendly to the environment