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Reverse current reduction of Ge photodiodes on Si without post-growth annealing

Chinese Optics Letters 2009年第4期7卷 286-290页

作者： Sungbong Park Shinya Takita Yasuhiko Ishikawa jiro osaka Kazumi Wada Department of Materials Engineering University of Tokyo

A new approach to reduce the reverse current of Ge pin photodiodes on Si is presented, in which an i-Si layer is inserted between Ge and top Si layers to reduce the electric field in the Ge layer. Without post- growth annealing, the reverse current density is reduced to -10 mA/cm^2 at -1 V, i.e., over one order of magnitude lower than that of the reference photodiode without i-Si layer. However, the responsivity of the photodiodes is not severely compromised. This lowered-reverse-current is explained by band-pinning at the i-Si/i-Ge interface. Barrier lowering mechanism induced by E-field is also discussed. The presented ＂non-thermal＂ approach to reduce reverse current should accelerate electronics-photonics convergence by using Oe on the Si complementary metal oxide semiconductor （CMOS） platform.

关键词： CMOS integrated circuits Electric fields Germanium Metals MOS devices Oxide semiconductors Photodiodes Silicon Silicon on insulator technology

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QTL Analysis for Traits Associated with Feeding Value of Straw in Rice (Oryza sativa L.)

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Rice science 2008年第3期15卷 195-200页

作者： DONG Chen-fei CAI Qing-sheng WANG Cai-lin jiro HARADA Keisuke NEMOTO SHEN Yi-xin College of Animal Science and Technology Nanjing Agricultural University Nanjing 210095 China College of Life Sciences Nanjing Agricultural University Nanjing 210095 China Institute of Food Crops Jiangsu Academy of Agricultural Sciences Nanjing 210014 China College of Agriculture Osaka Prefecture University Osaka 599-8531 Japan Asian Natural Environmental Science Center University of Tokyo Tokyo 113-8657 Japan

Genetic improvement of the digestibility of rice straw for increasing the utilization of the whole rice plant as feedstuffs is an important way to solve the feedstuffs shortage in southeastern China. To elucidate the genetic basis of the traits affecting the digestibility of rice straw, a rice population of 111 recombinant inbred lines （RILs） derived from a cross of Nekken 2xGaya was used to map the quantitative traits loci （QTLs） for in vitro dry matter digestion （IVDMD）, the percentages of nonstructural carbohydrate （NSC） and acid detergent fiber （exclusive of residual ash, ADFom） in 2005 and 2006. IVDMD was positively correlated with NSC, and negatively correlated with ADFom. A total of 16 QTLs were detected in the two years, and the amounts of variation explained by individual QTLs ranged from 6.9% to 15.5%. Some QTLs for IVDMD and ADFom on chromosome 2 were detected in the two years. On chromosome 2, the interval RM475-RM3515 contained QTLs for IVDMD in the two years and for NSC in 2006 only, while the interval RM3874-RM5305 influenced ADFom in the two years and NSC in 2005 only. At those loci, Gaya contributed favorable alleles to IVDMD and NSC, while Nekken 2 contributed positive alleles to ADFom.

关键词： acid detergent fiber in vitro dry matter digestion nonstructural carbohydrate quantitative trait locus rice straw feeding value

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Hyperdry human amniotic membrane application as a wound dressing for a full-thickness skin excision after a third-degree burn injury

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Burns & Trauma 2020年第1期8卷 186-203页

作者： jiro Oba Motonori Okabe Toshiko Yoshida Chika Soko Moustafa Fathy Koji Amano Daisuke Kobashi Masahiro Wakasugi Hiroshi Okudera Department of Emergency and Disaster Medicine University of ToyamaToyama 930-0194Japan Department of Regenerative Medicine Graduate School of Medicine and Pharmaceutical SciencesUniversity of ToyamaToyama 930-0194Japan Department of Biochemistry Faculty of PharmacyMinia UniversityMinia 61519Egypt Department of Emergency Surgery Sakai City Medical CenterSakaiOsaka 594-8304Japan

Background:Severe burn injuries create large skin defects that render the host susceptible to bacterial *** wound infection often causes systemic sepsis and severe septicemia,resulting in an increase in the mortality of patients with severe burn ***,appropriate wound care is important to prevent infection and improve patient ***,it is difficult to heal a third-degree burn *** aim of this studywas to investigate whether hyperdry human amniotic membrane(HD-AM)could promote early granulation tissue formation after full-thickness skin excision in third-degree burn injury sites in ***:After the development of HD-AM and creation of a third-degree burn injury model,the HD-AM was either placed or not placed on the wound area in the HD-AM group or HD-AM group,*** groups were prepared for evaluation on postoperative days 1,4 and *** staining was used for granulation tissue evaluation,and estimation of CD163,transforming growth factor beta-1(TGF-β1),vascular endothelial growth factor(VEGF),CD31,alpha-smooth muscle actin(α-SMA)and Iba1 expression was performed by immunohistochemical *** reverse-transcription polymerase chain reaction(PCR)was used to investigate gene expression of growth factors,cell migration chemokines and angiogenic and inflammatory ***:The HD-AM group showed significant early and qualitatively good growth of granulation tissue on the full-thickness skin excision ***-AM promoted early-phase inflammatory cell infiltration,fibroblast migration and angiogenesis in the granulation ***,the early infiltration of cells of the immune system was ***:HD-AM may be useful as a new wound dressing material for full-thickness skin excision sites after third-degree burn injuries,and may be a new therapeutic technique for improving the survival rate of patients with severe burn injuries.

关键词： Hyperdry human amniotic membrane Third-degree burn Granulation Cell migration Inflammation Angiogenesis

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Development of Breakup Model for Large Eddy Simulation of Diesel Spray

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Journal of Energy and Power Engineering 2013年第12期7卷 2312-2320页

作者： Tatsunori Fujii Koji Kitaguchi Soichi Hatori Tsukasa Hori jiro Senda Department of Mechanical Engineering Doshisha University Kyoto 610-0394 Japan Department of Mechanical Engineering Osaka University Osaka 565-0871 Japan

Diesel spray is injected at high pressure. So, upper stream region of spray is high Weber number condition. However, even if the fuel is injected at high pressure, the downstream region of spray is corresponding to relatively low Weber number condition. Thus, KH （Kelvin-Helmholtz） model modeled for high Weber number conditions and MTAB （modified Taylor analogy breakup） model are used for primary and secondary breakup processes respectively. This study is focused on the development of new hybrid breakup model The calculations are performed by LES （large eddy simulation） incorporated into KIVA code. LES of non-evaporating diesel spray are performed using KH ＆ RT （Rayleigh-Taylor） model, MTAB model and KH-MTAB model. Then, LES with these models were compared with experimental results. As the result, the availability of KH-MTAB model is showed. It is found that KH-MTAB is good agreement with experimental results of penetration and SMD （Sauter mean diameter） in relatively low density conditions.

关键词： Diesel spray spray structure large eddy simulation breakup model KH-MTAB model.

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The Association between Activity of Daily Living and the Combination of Alzheimer’s Disease and Cataract in Elderly Requiring Nursing Care

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Health 2016年第10期8卷 994-1003页

作者： Toshio Hamagishi Toshimitsu Inagawa Yasuhiro Kambayashi Hiromasa Tsujiguchi Masami Kitaoka Junko Mitoma Hiroki Asakura Fumihiko Suzuki Daisuke Hori Enoch Olando Anyenda Nguyen Thi Thu Thao Yuri Hibino Koichi Hayashi Aki Shibata Takiko Sagara jiro Okochi Kiyoshi Takamoku Kotaro Hatta Tadashi Konoshita Hiroyuki Nakamura Department of Environmental and Preventive Medicine Graduate School of Medical Science Kanazawa University Ishikawa Japan Department of Food Sciences and Nutrition School of Human Environmental Sciences Mukogawa Women’s University Hyogo Japan Department of Lifestyle Studies Kobe Shoin Women’s University Hyogo Japan Department of Nutritional Sciences for Well-Being Kansai University of Welfare Sciences Osaka Japan Japan Association of Geriatric Health Service Facilities Tokyo Japan Department of Psychiatry Juntendo University Nerima Hospital Tokyo Japan Third Department of Internal Medicine Fukui University School of Medicine Fukui Japan

Some clinical and epidemiological studies have suggested that Alzheimer’s Disease (AD) and cataract, may share common pathogenetic mechanisms, subsequently a positive association between the prevalence of AD and cataract, although other studies found no significant relationship between dementia and visual impairment including cataract in the elderly. Little is known about the association between Activity of Daily Living (ADL) and the combination of AD and cataract. To examine the association between ADL and the combination of AD and cataract, we performed a national survey in nursing care institutions in Japan, examining the decreased ADL in elderly with and without AD and cataract for 453 elderly aged 85.0 ± 8.13 years. The proportion, 43.5% of AD in subjects without cataract was significantly higher than that, 23.5% with cataract. Almost all ADL in AD with cataract was significantly lower than that without cataract, although all ADL in cataract patients receiving surgery in AD was significantly (all p < 0.002) higher than that in cataract patients without surgery in AD, as was confirmed by the multiple regression analysis incorporating into the relevant factors as independent variables. These results showed that ADL scores including cognitive functions decreased by cataract were increased by the surgery in the patients with AD. A significantly negative association between AD and cataract seen in our data, which was inconsistent with the previous result, might lead to the necessities of the clinical diagnosis for slight severity of cataract for patients with AD.

关键词： Alzheimer’s Disease Cataract Elderly Activity of Daily Living Cognitive Function

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