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固态vander WaalsC _(60)膜晶格的Coulomb膨胀

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中国科学（A辑） 2000年第6期30卷 529-536页

作者：薛其坤厉建龙孙牧陆华 T.hashizume Y.Ling Y.hasegawa K.Ohno Z.Q.Li Y.Kawazoe T.Sakurai h.kamiyama h.Shinohara 中国科学院表面物理国家重点实验室 Institute for Materials Research Aomori Public College Chemistry Department

利用扫描隧道显微镜观测到生长在GaAs(0 0 1 ) 2× 4表面上的固态vanderWaalsC6 0 膜在室温下较之C6 0 晶体具有 1 3%的晶格膨胀 .这种膨胀是由从GaAs衬底饱和的As悬挂键上转移到C6 0 分子上的电荷之间的Coulomb作用引起的 .理论计算表... 详细信息

利用扫描隧道显微镜观测到生长在GaAs(0 0 1 ) 2× 4表面上的固态vanderWaalsC6 0 膜在室温下较之C6 0 晶体具有 1 3%的晶格膨胀 .这种膨胀是由从GaAs衬底饱和的As悬挂键上转移到C6 0 分子上的电荷之间的Coulomb作用引起的 .理论计算表明 ,平均约有 1 76个电子转移到每个C6 0 分子上 .有趣的是 ,该固态C6 0 膜为 (1 1 0 )取向 ,这明显不同于生长于其他半导体或金属表面上的具有 (1 1 1 )取向的六角密排C6 0 膜 .这种反常取向的薄膜是由GaAs衬底的各向异性产生的一维限制作用导致的 .通过选择不同的衬底 ,可以控制C6 0

关键词：晶体生长分子束外延碳60膜晶格 Coulomb膨胀

Space-charge effect on photogenerated-current and-voltage inⅢ-nitride optoelectronic semiconductors

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Photonics Research 2021年第9期9卷 1820-1828页

作者： DONG-PYO hAN MOTOAKI IWAYA TETSUYA TAKEUChI SATOShI kamiyama ISAMU AKASAKI Faculty of Science and Technology Meijo UniversityNagoya 468-8502Japan Akasaki Research Center Nagoya UniversityNagoya 464-8603Japan

In this study,we attempted to elucidate the carrier dynamics behind the abnormal characteristics of photogenerated current and voltage(IPhand VPh)at cryogenic temperature inⅢ-nitride optoelectronic semiconductors by employing space-charge *** this end,we carefully investigated and analyzed excitation-powerdependentⅠ-Ⅴ(PDIV)curves operated by quasiresonant excitation of an Al Ga In N-based p-i-n junction semiconductor at 300 K and 15 *** 300 K,the curves exhibited typical characteristics and were well described by the conventional ***,the PDIV curves at 15 K could no longer be described by the conventional *** elucidate the mechanism behind this phenomenon,we proposed a model in which the space-charge effect(SCE)plays a key *** on this model,we proposed the modified Shockley diode equation,which can explain the PDIV characteristic at 15 K,including the *** also discussed the SCE on the efficiency of devices.

关键词： optoelectronic Shockley charge

Nanometer-size Na cluster formation in micropore of hard carbon as origin of higher-capacity Na-ion battery

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npj Computational Materials 2021年第1期7卷 440-447页

作者： Yong Youn Bo Gao Azusa kamiyama Kei Kubota Shinichi Komaba Yoshitaka Tateyama Center for Green Research on Energy and Environmental Materials(GREEN)and International Center for Materials Nanoarchitectonics(MANA) National Institute for Materials Science(NIMS)IbarakiJapan Department of Applied Chemistry Tokyo University of ScienceTokyoJapan Elements Strategy Initiative for Catalysts and Batteries(ESICB) Kyoto UniversityKyotoJapan

Development of high-energy-density anode is crucial for practical application of Na-ion battery as a post Li-ion *** carbon(hC),though a promising anode candidate,still has bottlenecks of insufficient capacity and unclear microscopic *** of the micropore has been recently discussed,however,the underlying sodiation mechanism is still *** we examined the origin for the high-capacity sodiation of hC,based on density functional theory *** demonstrated that nanometersize Na cluster with 3–6 layers is energetically stable between two sheets of graphene,a model micropore,in addition to the adsorption and intercalation *** finding well explains the extended capacity over typical 300 mAhg^(−1),up to 478 mAhg^(−1) recently found in the MgO-templated *** also clarified that the MgO-template can produce suitable nanometersize micropores with slightly defective graphitic domains in *** present study considerably promotes the atomistic theory of sodiation mechanism and complicated hC science.

关键词： battery cluster size

Solvent-free mechanochemical synthesis of organic proton conducting salts incorporating imidazole and dicarboxylic acids

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Chinese Journal of Structural Chemistry 2023年第5期42卷 22-26页

作者： Yating Zhou Anucha Koedtruad Zhenhong Tan Dong Zhang Lingxiang Bao Yajun Yue Jianyuan Wu Juping Xu Yuanguang Xia Wen Yin Maxim Avdeev Wang hay Kan Takashi kamiyama Ping Miao Institute of high Energy Physics Chinese Academy of SciencesBeijing100049China Spallation Neutron Source Science Center Dongguan523803China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing100049China Australian Nuclear Science and Technology Organisation Lucas HeightsNew South Wales2234Australia School of Chemistry The University of SydneySydneyNew South Wales2006Australia

Solventless mechanochemical synthesis by manual grinding was applied to grow organic proton conducting salts,imidazole-succinic acid(C_(3)h_(4)N_(2)-hOOC(Ch_(2))_(2)COOh)and imidazole-glutaric acid(C_(3)h_(4)N_(2)-hOOC(Ch_(2))_(3)COOh).This synthesis method induces crystallization and provides the phase-pure *** compounds exhibit different electric conducting behavior and activation energies Ea compared with the reported single crystals obtained from the solution *** difference in conducting property can be related to intrinsic defects and structural disorder introduced by mechanochemical grinding,indicating that the mechanochemical method bears strong capability for tuning ***,complete deuteration of the organic salts is achieved by the *** mechanochemical synthesis of organic salts also holds high potential for the actual industrialized large-scale production.

关键词： Organic salts Proton conducting Mechanochemistry Powder neutron diffraction Solventless synthesis Deuteration

high hbA1c is a risk factor for complications after hepatectomy and influences for hepatocellular carcinoma without hBV and hCV infection

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hepatobiliary Surgery and Nutrition 2021年第4期10卷 454-463页

作者： Shingo Shimada Toshiya kamiyama Tatsuya Orimo Akihisa Nagatsu hirofumi Kamachi Akinobu Taketomi Department of Gastroenterological Surgery I Hokkaido University Graduate School of MedicineSapporoJapan

Background:Currently,the population with type 2 diabetes mellitus(DM)is increasing ***,the influence of DM or hyperglycemia on the outcome of resected hepatocellular carcinoma(hCC)is ***:We analyzed 756 patients with hCC who underwent *** patients were assigned to an hbA1c≥7.0%(h-A1c;n=100)or hbA1cheir hbA1c level at *** investigated prognoses,clinicopathological characteristics and surgical outcomes including morbidities of hCC patients with high hbA1c,prognoses according to the treatment for DM were also ***:Among all patients and those with hepatitis B virus(hBV)and hepatitis C virus(hCV)infection,overall survival(OS)and relapse-free survival(RFS)did not differ significantly between the h-A1c and L-A1c *** contrast,the 5-year OS rate of the h-A1c group was 55%and that of the L-A1c group 71%among patients without hBV and hCV(NBNC patients)(P=0.03).Among NBNC patients,the median RFS of the h-A1c group was 13 months,and that of the L-A1c group was 26 months(P=0.02).In addition,metformin use was an independent favorable factor for both OS and *** h-A1c group had significantly higher rates of hyperbilirubinemia,wound infection,and ***:hCC patients with high hbA1c might have poor prognoses for both survival and recurrence in *** hbA1c may also be a risk factor for morbidities after *** use may constitute a good option for NBNC patients with hCC.

关键词： hepatocellular carcinoma(hCC) hbA1c diabetes mellitus(DM) hepatectomy metformin

Susceptibility of Aedes flavopictus miyarai and Aedes galloisi mosquito species in Japan to dengue type 2 virus

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Asian Pacific Journal of Tropical Biomedicine 2016年第5期6卷 446-450页

作者： Raweewan Srisawat Thipruethai Phanitchat Narumon Komalamisra Naoki Tamori Lucky Runtuwene Kaori Noguchi Kyoko hayashida Shinya hidano Naganori kamiyama Ikuo Takashima Tomohiko Takasaki Ichiro Kurae Narihiro Narita Takashi Kobayashi Yuki Eshita Faculty of Tropical Medicine Mahidol University Faculty of Medicine Oita University Laboratory of Public health Department of Environmental Veterinary SciencesGraduate School of Veterinary MedicineHokkaido University Department of Virology 1 National Institute of Infectious Diseases Cultural Anthropology Laboratory Department of Arts and SciencesOhkagakuen University

Objective: To evaluate the potential of local mosquitoes to act as vectors for dengue transmission in ***: Serotype 2 Th Nh28/93 was used to test the dengue susceptibility profiles of Aedes flavopictus miyarai(Ae. f. miyarai), Aedes galloisi(Ae. galloisi) and Aedes albopictus(***), which were collected in Japan. We used Aedes aegypti from Thailand as a positive control. The mosquitoes were infected with the virus intrathoracically or orally. At 10 or 14 days post infection, the mosquitoes were dissected and total RNA was extracted from their abdomens, thoraxes, heads and legs. Mosquito susceptibility to dengue virus was evaluated using RT-PCR with dengue virus-specific primers. Differences in the infection and mortality rates of the different mosquito species were tested using Fisher's exact probability ***: The infection rates for dengue virus administered intrathoracically to Ae. f. miyarai,Ae. galloisi and Aedes aegypti mosquitoes were identical by RT-PCR on Day 10 post *** of the body parts we tested were RT-PCR-positive for dengue virus. For the orally administered virus, the infection rates in the different body parts of the Ae. f. miyarai mosquitoes were slightly higher than those of Ae. albopictus mosquitoes, but were similar to the control mosquitoes(P > 0.05). The mortality rates for Ae. f. miyarai and Ae. albopictus mosquitoes were similar(P = 0.19). Our data indicated that dengue virus was able to replicate and disseminate to secondary infection sites in all of the four mosquito species(Japanese and Thai).Conclusions: Ae. albopictus is a well-known candidate for dengue transmission in Japan. however, our data suggest that Ae. f. miyarai from Ishigaki Island(near Okinawa Island) and Ae. galloisi from hokkaido(Northern Japan) should also be regarded as potential vectors for dengue transmission in these regions. Further studies on these mosquitoes should be conducted.

关键词： Aedes flavopictus miyarai Aedes galloisi Aedes albopictus Aedes aegypti Dengue type 2 virus Japan Oral infection Intrathoracic inoculation

新型经皮传递胰岛素透明质酸微针制剂的制备及性能考察

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沈阳药科大学学报 2010年第1期27卷 6-10页

作者：刘姝权英淑神山文男方亮山本昌沈阳药科大学药学院京都药科大学药剂学教研室

目的证明透明质酸微针制剂在药物经皮传递系统方面的应用前景。方法通过皮肤及微针的显微照片考察微针刺入皮肤的性能和在大鼠体内的溶解性能;用皮肤刺激性实验评价透明质酸微针的安全性;以人的离体皮肤为透皮释药模型,通过体外经皮通... 详细信息

目的证明透明质酸微针制剂在药物经皮传递系统方面的应用前景。方法通过皮肤及微针的显微照片考察微针刺入皮肤的性能和在大鼠体内的溶解性能;用皮肤刺激性实验评价透明质酸微针的安全性;以人的离体皮肤为透皮释药模型,通过体外经皮通透实验考察微针对模型药物胰岛素经皮吸收的促进作用。结果微针能够均匀刺穿角质层,在皮肤表面产生与微针一致的阵列形状,在皮肤断面可观察到直至真皮层的通道;在大鼠体内使用1 h后,针体能够完全溶解,皮肤刺激性指数为1.7,属于轻度刺激性;体外经皮实验中,微针中的胰岛素能够以活性形式释放,与同剂量的溶液相比,微针对胰岛素的体外经皮吸收具有显著的促进作用,稳态通透速率达75.33×***-2.h-1。结论以透明质酸为基质制备的微针具有良好的皮肤刺入性、溶解性和轻度的刺激性,对于生物大分子类药物的经皮吸收有明显的促进作用,具有良好的开发前景。

关键词：经皮给药微针透明质酸胰岛素

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黄土包气带土壤水特征曲线研究

辐射防护 2000年第1期20卷 101-106页

作者：郭择德程金茹邓安向井雅之神山秀雄中国辐射防护研究院太原030006 日本原子力研究所

本文主要介绍在中国辐射防护研究院 (CIRP)野外试验场从地表到潜水位 2 8m深范围内 4 6个土芯样的水特征曲线的测量方法及测量结果。结果表明 ,场址包气带导水特征随深度变化明显 ,可将其分为 5个层带 ,并由测量结果推导出各层带土壤的... 详细信息

本文主要介绍在中国辐射防护研究院 (CIRP)野外试验场从地表到潜水位 2 8m深范围内 4 6个土芯样的水特征曲线的测量方法及测量结果。结果表明 ,场址包气带导水特征随深度变化明显 ,可将其分为 5个层带 ,并由测量结果推导出各层带土壤的非饱和渗透系数、比水容量及当量孔径分布等非饱和水动力学参数。测量得到的土壤水特征曲线与现场包气带剖面含水量和基质势动态观测结果符合较好。利用本文研究得出的参数 ,计算得到的试验场址包气带孔隙水流速与现场 3 h示踪试验得到的结果也符合较好。

关键词：土壤水特征曲线包气带核素迁移试验

低中水平放射性废物浅地层处置安全评价方法研究

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辐射防护 2000年第Z1期20卷 2-20页

作者：李书绅王志明郭择德李祯堂赵英杰李盛芳神山秀雄山本忠利武部慎一小川弘道田中忠夫向井雅之 030006 中国辐射防护研究院!太原日本原子力研究所

中国辐射防护研究院和日本原子力研究所合作开展了为期 5年 (1988年 1月～ 1993年 1月 )的“低中水平放射性废物浅地层处置安全评价方法研究”,以建立一套低中放废物浅地层处置安全评价技术和方法 ,包括参数、模式和程序。本文主要介绍... 详细信息

中国辐射防护研究院和日本原子力研究所合作开展了为期 5年 (1988年 1月～ 1993年 1月 )的“低中水平放射性废物浅地层处置安全评价方法研究”,以建立一套低中放废物浅地层处置安全评价技术和方法 ,包括参数、模式和程序。本文主要介绍在黄土包气带中核素迁移规律、水分运移行为研究及其相关参数测定的方法和试验结果 ,以及试验场址主要特征和开发的核素迁移模式与计算程序为开展现场核素迁移示踪试验和实验室核素迁移模拟实验 ,建立了野外试验场、喷淋试验大厅和环境模拟实验室 ;开发了现场核素迁移直接测量系统 ;研制了实验室模拟装置和原状土取样设备。包气带核素迁移示踪试验 ,从 1989年 5月开始到 1991年 8月结束 ,试验在天然 (试验期间年均降雨量为 4 38mm)和喷淋 (喷淋强度 15mm/ d,相当于降雨量 5.4 8× 10 3 mm/ a)两种条件下进行。实验室模拟实验 ,喷淋强度为 0 .796 mm/ d(4号土柱 )和 0 .6 56 mm/ d(2号土柱 ) ,历时约 1年。示踪核素为 60 Co、85Sr和 13 4Cs(或13 7Cs)。还与现场试验同步开展了试验场水分运移研究 ,及用 3 h作示踪剂的水分运移研究。得到以下主要结果 :(1)对 85Sr,喷淋条件下 2年的现场试验期内 ,浓度峰迁移了 13cm,天然条件下迁移约 2 cm;在 1年的实验室模拟实验期内 ,取

关键词：低中放废物处置安全评价黄土包气带 60Co 85Sr 134Cs 核素迁移