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Chenguodaite (Ag_9FeTe_2S_4):a new tellurosulfide mineral from the gold district of East Shandong Peninsula,China

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Chinese Science Bulletin 2008年第22期53卷 3567-3573页

作者： GU XiangPing Makoto WATANABE XIE XianDe PENG ShengLin Yoshihiro NAKAMUTA Makio OHKAWA kenichi hoshino Kazumasa OHSUMI Yasuhiro SHIBATA Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Department of Earth & Planetary Sciences Hiroshima University Higashi Hiroshima City Hiroshima 739-8526 Japan Department of Earth Sciences and Environmental Engineering Central South University Changsha 410083 China The Kyushu University Museum Kyushu University Kakozaki Fukuoka 812-8581 Japan Photon Factory National Laboratory for High Energy Physics (KEK) Oho 1-1 Tsukuba Ibaraki 305 Japan

Chenguodaite, approved by IMA-CNMMN (2004-042a), was discovered in the Bunan quartz vein-type gold deposit in the gold district of East Shandong Peninsula. The mineral occurs in high grade Au-Ag-Cu ores, coexisting with galena, chalcopyrite, hessite, electrum, unnamed Ag6TeS2 and Ag16FeBiTe3S8, enclosed and replaced by native silver and acanthite. In the reflected light microscope, the mineral has light gray color, indistinguishable anistropism and hardness around 2―3. The color indices of chenguodaite relative to ICE C illuminator are: x=0.3027, y=0.3076, Y=25.78%, λd=474 nm, Pe=3.68%, similar to those of canfieldite. The average chemical composition from 16 microprobe analyses is Ag8.97Fe1.00Te1.99S4.04, idealized to Ag9FeTe2S4. The polycrystalline X-ray diffraction of chenguodaite by Gandolfi camera and synchrotron oscillation photography results in 67 reflections with the 12 strongest being (relative intensity in bracket): 6.742(69), 6.416(39), 5.951(33), 3.265(100), 2.981(24), 2.649(22), 2.25(24), 2.188(71), 2.142(22), 2.123(31), 2.044(23), 1.949(33), which are indexed to a primitive orthorhombic cell with a=12.769 (2) , b= 14.814(2), c= 16.233 (1) , V= 3070.63, Z = 9, Dcal.=6.85 g/cm3. The name is for the late Prof. Chen Guoda, a famous Chinese geologist and the founder of Diwa-Geodepression theory of tectonics.

关键词： Ag9FeTe2S4 新矿石硫化亚碲山东东部

湖南康家湾矿床的成矿流体特征:基于矿物学、流体包裹体及热力学计算的制约

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矿床地质 2021年第3期40卷 475-490页

作者：梁翼钟建胜 JOUKOU Suguru 裴秋明 hoshino kenichi 西南交通大学地球科学与环境工程学院四川成都611756 日本广岛大学理学院日本广岛7398526

湖南康家湾铅锌金银矿床位于南岭成矿带北部中段,是水口山矿田内发现较晚的大型隐伏矿床。该矿床的矿物组合及矿化特征复杂,前人对其成矿流体特征及成因类型存在不同认识。文章通过野外地质调查和矿物矿相学研究发现该矿床的热液成矿阶... 详细信息

湖南康家湾铅锌金银矿床位于南岭成矿带北部中段,是水口山矿田内发现较晚的大型隐伏矿床。该矿床的矿物组合及矿化特征复杂,前人对其成矿流体特征及成因类型存在不同认识。文章通过野外地质调查和矿物矿相学研究发现该矿床的热液成矿阶段较多,方铅矿主要形成于早期闪锌矿与晚期闪锌矿之间,而金和银的成矿阶段分别与早期闪锌矿和方铅矿趋于一致。电子探针成分分析结果显示早期闪锌矿的含铁量(x(FeS)=9.0%~19.1%)明显高于晚期闪锌矿的(x(FeS)=0.1%~4.0%),与黄铁矿和磁黄铁矿共生的闪锌矿含铁量估算得到的成矿压力值范围为100~146 MPa。早期闪锌矿中流体包裹体的均一温度范围为190~370℃,盐度w(NaCl_(eq))范围为5%~11%,均明显高于晚期闪锌矿。基于矿物组合特征的热力学模拟计算显示早期的成矿流体具有低氧逸度和中酸性的特征,为金的沉淀提供了有利条件。总体上,康家湾矿床的成矿流体演化具有温度和压力由高变低、氧逸度由低变高、pH值由低变高但均为中酸性,金属元素含量由多变少的变化趋势。以上成矿流体特征暗示康家湾矿床具矽卡岩型矿化特征,指示深部存在找矿潜力。

关键词：地球化学矿物学成矿流体特征热力学计算铅锌金银矿床康家湾

陈国达矿(Ag9FeTe2S4)：胶东地区金矿床中发现的硫碲化物新矿物

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科学通报 2008年第17期53卷 2064-2070页

作者：谷湘平 WATANABE Makoto 谢先德彭省临 NAKAMUTA Yoshihiro OHKAWA Makio hoshino kenichi OHSUMI Kazumasa SHIBATA Yasuhiro 中国科学院广州地球化学研究所广州510640 Department of Earth & Planetary Sciences Hiroshima University Hiroshima 739-8526 Japan 中南大学地学与环境工程学院长沙410083 The Kyushu University Museum Kyushu University Fukuoka 812-8581 Japan Photon Factory National Laboratory for High Energy Physics (KEK) Oho 1-1 Ibaraki 305 Japan

陈国达矿(Ag9FeTe2S4),产于中国胶东金矿区埠南金矿的含金-银的黄铜矿-石英脉中,呈5～70μm的半自形-他形粒状与方铅矿、黄铜矿、碲银矿、银金矿、自然银、未定名的Ag6TeS2,Ag16FeBiTe3S8共生,并被自然银和螺状硫银矿包围交代.其平均化... 详细信息

陈国达矿(Ag9FeTe2S4),产于中国胶东金矿区埠南金矿的含金-银的黄铜矿-石英脉中,呈5～70μm的半自形-他形粒状与方铅矿、黄铜矿、碲银矿、银金矿、自然银、未定名的Ag6TeS2,Ag16FeBiTe3S8共生,并被自然银和螺状硫银矿包围交代.其平均化学成分(16个EPMA分析值)为Ag8.97Fe1.00Te1.99S4.04,理想化学式Ag9FeTe2S4.利用甘多菲照相及同步辐射迴摆照相技术,获得陈国达矿的67个衍射线,主要衍射强线的d值和相对强度(括号中)为:6.742(69),6.416(39),5.951(33),3.265(100),2.981(24),2.649(22),2.25(24),2.188(71),2.142(22),2.123(31),2.044(23),1.949(33).该衍射数据指标化为斜方晶系,a=12.769(2),b=14.814(2),c=16.233(1),V=3070.63,Z=9,dcal=6.85g/cm3.反光显微镜下,陈国达矿的光学性质与硫银锡矿接近,浅灰色,无明显非均质性,摩氏硬度2～3,颜色指数:x=0.3027,y=0.3076,Y=25.78%,λd=474nm,Pe=3.68%.该矿物以中国地质学家、地洼学说的创立人陈国达教授的姓名命名.该矿物及命名经IMA-CNMMN于2004年投票通过.2005年作者补充数据后,由CNMMN主席正式公布,批准号2004-042a。

关键词：陈国达矿新矿物硫碲化物同步辐射胶东金矿

Facile synthesis and characterization of a novel thiophene-fused polycyclic aromatics based on pyrene

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Chinese Chemical Letters 2011年第7期22卷 819-822页

作者： Daiki hoshino Tsuyoshi Morita Yasushiro Nishioka College of Science and Technology Nihon UniversityNarashinodaiFunabashiChiba 2748501Japan

A novel large thiophene-fused polycyclic aromatics 1 based on pyrene 5 has been synthesized, and its structure was confirmed by ^1H NMR, ^13C NMR, MS, UV-vis and elemental analysis. The key steps of the synthesis involved the Stille cross-coupling reaction and followed by selective β-β oxidative cyclization of pendant thienyl rings by FeCl3 under mild conditions.

关键词： Pyrene Thiophene Stille coupling reaction Oxidative cyclization

Direct ethanol production from rice straw by coculture with two high-performing fungi

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Frontiers of Chemical Science and Engineering 2012年第2期6卷 139-145页

作者： Maki TAKANO Kazuhiro hoshino Graduate School of Science and Engineering University of Toyama Toyama 930-8555 Japan

To develop efficient and economical direct ethanol production from fine rice straw crashed mechanically, two high-performing fungi, which can secret hyperactive cellulases and/or ferment effectively various sugars, were selected from some strains belong to Mucor circinelloides preserved in our laboratory. The simultaneous saccharification and fermentation （SSF） by coculture with these fungi was investigated. The screening of high- performing fungi resulted in the selection of NBRC 4572 as an ethanol-producing fungus and NBRC 5398 as a cellulase-secreting fungus. The strain 4572 produced ethanol aerobically from glucose and xylose in high yields of 0.420 g/g at 36 h and 0.478 g/g at 60 h, respectively, but secreted fairly low cellulases. On the other hand, the strain 5398 also produced ethanol from glucose in yield of 0.340 g/g though it had a little growth in xylose culture. However, it secreted hyperactive cellulases that are essential for hydrolysis of rice straw in culture and the maximum activities of endo-β-glucanase and β-glucosi- dase were 2.11 U/L and 1.47 U/L, respectively. In SSF of rice straw by coculture with two fungi selected, the ethanol production reached 1.28 g/L after 96 h when the inoculation ratio of the strain 5398 to the strain 4572 was 9.

关键词： Mucor circinelloides ethanol production cellulase secretion SSF coculture rice straw

Color Data Compensation for Illumination Change

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仪器仪表学报 2004年第S3期 165-168页

作者： Pranchalee Rattanasakornchai,Yasushi hoshino Department of Systems Engineering Nippon Institute of Technology Saitama Japan Department of Systems Engineering Nippon Institute of Technology Saitama Japan

Compensation method for illumination change, which has big influences on the characteristics of imaging system, is studied. On the condition that color chart is placed in the view of camera, the imaging system recognizes the color chart and the signals from the camera are processed by using the color chart data. Concerning the light from the window, and fluorescent light, it is confirmed that color chart is possible to be recognized and the color system is corrected to the expected chart signal within the error 10 % by considering quadratic terms of RGB. This method is considered to improve the accuracy of motion detection and also to better video communication by realizing preferable color reproduction.

关键词： Color compensation Illumination change Color chart

Phase Composition of Sputtered Film from a Mixture Target of Hydroxyapatite and Strontium-apatite

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Journal of Materials Science & Technology 2013年第1期29卷 1-6页

作者： K.Ozeki T.hoshino H.Aoki T.Masuzawa Department of Mechanical Engineering Ibaraki University International Apatite Co. Ltd.

To obtain an Sr-substituted hydroxyapatite thin film, sputter-coating was performed on a cellulose filter acting as a substrate from the mixture target of hydroxyapatite （HA） and strontium-apatite （SrAp） at an Ar pressure of 0.5-5.0 Pa. The ratio of the SrAp in the mixture target was varied from 25% to 100%. After coating, the films were heated at 700 ℃ to remove the cellulose filter substrate, and the crystalline phases were identified by X-ray diffraction （XRD）. The sputter-coated film was identified as the Sr-substituted /3-tri-calcium phosphate （TCP） and the Sr-substituted/3-calcium pyrophosphate （CPP） as well as the Sr-substituted HA. The weight ratio of the Sr-substituted HA decreased with increasing Ar pressure or with an increasing ratio of SrAp to HA in the target. The average Sr/（Ca ＋ Sr） molar ratio in the film was 1.9%-3.5% slightly lower than the initial SrAp ratio of the target, and the ratio was not influenced by the Ar pressure. In the （Sr ＋ Ca）/P ratio, the ratio decreased while increasing the SrAp ratio in the target.

关键词： Sputtering Hydroxyapatite Strontium Strontium-apatite Crystal phase

Studies of nanoparticle delivery with in vitro bio-engineered microtissues

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Bioactive Materials 2020年第4期5卷 924-937页

作者： Mingze Sun Jinhyung Lee Yupeng Chen Kazunori hoshino Department of Biomedical Engineering University of Connecticut260 Glenbrook RdStorrsCT06269USA

A variety of engineered nanoparticles,including lipid nanoparticles,polymer nanoparticles,gold nanoparticles,and biomimetic nanoparticles,have been studied as delivery vehicles for biomedical *** assessing the efficacy of a nanoparticle-based delivery system,in vitro testing with a model delivery system is crucial because it allows for real-time,in situ quantitative transport analysis,which is often difficult with in vivo animal *** advent of tissue engineering has offered methods to create experimental models that can closely mimic the 3D microenvironment in the human *** review paper overviews the types of nanoparticle vehicles,their application areas,and the design strategies to improve delivery efficiency,followed by the uses of engineered microtissues and methods of *** particular,this review highlights studies on multicellular spheroids and other 3D tissue engineering approaches for cancer drug *** use of bio-engineered tissues can potentially provide low-cost,high-throughput,and quantitative experimental platforms for the development of nanoparticle-based delivery systems.

关键词： Nanoparticles Drug delivery In vitro tissue model Multicellular spheroid

Comparison of Charging Characteristics of Polymerized and Pulverized Toners

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仪器仪表学报 2004年第S3期 28-30+35页

作者： Yasushi hoshino,Tsunenori Nakanishi,Hidetaka Ishihara Nippon Institute of Technology Minamisaitama Saitama Japan Nippon Institute of Technology Minamisaitama Saitama Japan Nippon Institute of Technology Minamisaitama Saitama Japan

Toner charge is very important in electrophotographic printing process. Although many studies on toner charging mechanism have been carried out, the mechanism is very complex and the understanding of toner charging characteristics is not yet sufficient. Toner charge distribution is measured by E-SPART (electrical single particle aerodynamic relaxation time) analyzer, which can measure the size and charge of toner. The measured toners are polymerized and pulverized type. Charging is carried out as follows : the toner is mixed with the carrier and the mixture is bottled into the roller, and mixed by rotating the roller. Toner charge dependences on toner wt% are compared between polymerized and pulverized toner.

关键词： Polymerized toner Pulverized toner Toner charge E-SPART