检索结果-南通市图书馆

A New Species of Fejervarya(Anura: Dicroglossidae) from Mawphlang,Northeastern India

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Herpetological Research 2012年第1期3卷 31-37页

作者： Jayaditya PURKAYASTHA Masafumi matsui Department of Zoology Arya Vidyapeeth College South Point School Help Earth Graduate School of Human and Environmental Studies Kyoto University

A new Dicroglossid species is described from Mawphlang,Meghalaya,northeastern India. The new species differs from all the congeners occurring in this region in body size and call characteristics. It is larger than Fejervarya syhadrensis and F. nepalensis,but smaller than F. teraiensis. It overlaps F. pierrei in snout-vent length,but clearly differs from it in advertisement call,with much shorter note duration,much longer inter note interval,and much lower dominant frequency. Paucity of genetic information and underestimation of species diversity in this region are discussed.

关键词： new species Fejervarya Amphibia Anura Mawphlang India

Modeling of the impurity-induced silicon nanocone growth by low energy helium plasma irradiation

在线全文

学校读者我要写书评

暂无评论

Plasma Science and Technology 2021年第4期23卷 70-75页

作者： Quan SHI Shin KAJITA Shuyu DAI Shuangyuan FENG Noriyasu ohno Graduate School of Engineering Nagoya UniversityNagoya 464-8603Japan Institute of Materials and Systems for Sustainability Nagoya UniversityNagoya 464-8603Japan Key Laboratory of Materials Modification by Laser Ion and Electron Beams Ministry of EducationSchool of PhysicsDalian University of TechnologyDalian 116024People’s Republic of China

The formation mechanism of nanocone structure on silicon(Si)surface irradiated by helium plasma has been investigated by experiments and ***(molybdenum)aggregated as shields on Si was found to be a key factor to form a high density of nanocone in our previous *** to concrete this theory,a simulation work has been developed with SURO code based on the impurity concentration measurement of the nanocones by using electron dispersive x-ray *** formation process of the nanocone from a flat surface was *** modeling structure under an inclining ion incident direction was in good agreement with the experimental ***,the redeposition effect was proposed as another important process of nanocone formation based on results from the comparison of the cone diameter and sputtering yield between cases with and without the redeposition effect.

关键词： black silicon helium plasma nanocone simulation

A method for estimating the fraction of mineral dust in particulate matter using PM2.5-to-PM10 ratios

在线全文

学校读者我要写书评

暂无评论

Particuology 2016年第5期14卷 114-120页

作者： Nobuo Sugimoto Atsushi Shimizu Ichiro matsui Masataka Nishikawa Center for Environmental Measurement and Analysis National Institute for Environmental Studies 16-20nogawa Tsukuba 305-8506 Japan Tokyo University of Science Environmental Safety Center 1-3 Kagurazaka Shinjuku-ku Tokyo 162-8601Japan

A simple method for estimating the contributions of mineral dust to PM2.5, PM10, or TSP is presented. The method is based on the assumption of external mixing of two types of particles with different PM2.5/PM10 ratios, The method was applied to local and transported dust events observed in Tsukuba, Japan, and was compared with collocated polarization lidar measurements. The method was then applied to three dust events that occurred in Oki, Rishiri, and Ochiishi,Japan, in 2012. The results showed that the method was useful for detecting mineral dust and for qualitatively describing the mixing of dust with anthropogenic aerosols.

关键词： Mineral dust PM2.5 dust fraction PM2.5 to PM10 ratio Atmospheric mixing Lidar Depolarization ratio

Catalytic liquid-phase oxidation of acetaldehyde to acetic acid over a Pt/CeO_2–ZrO_2–SnO_2/γ-alumina catalyst

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2015年第10期27卷 63-66页

作者： Pil-Gyu Choi Takanobu ohno Toshiyuki Masui Nobuhito Imanaka Department of Applied Chemistry Faculty of EngineeringOsaka University

Pt/CeO2–ZrO2–SnO2/γ-Al2O3 catalysts were prepared by co-precipitation and wet impregnation methods for catalytic oxidation of acetaldehyde to acetic acid in water. In the present catalysts, Pt and CeO2–ZrO2–SnO2 were successfully dispersed on the γ-Al2O3 *** of platinum content and reaction time on the selective oxidation of acetaldehyde to acetic acid were investigated to optimize the reaction conditions for obtaining both high acetaldehyde conversion and highest selectivity to acetic acid. Among the catalysts, a Pt（6.4 wt.%）/Ce0.68Zr0.17Sn0.15O2.0（16 wt.%）/γ-Al2O3 catalyst showed the highest acetaldehyde oxidation activity. On this catalyst, acetaldehyde was completely oxidized after the reaction at 0°C for 8 hr, and the selectivity to acetic acid reached to 95%and higher after the reaction for 4 hr and longer.

关键词： Liquid-phase oxidation Acetaldehyde Rare earths Catalyst

Carrier Dynamics and Surface Reaction Boosted by Polymer-based Single-atom Photocatalysts

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2022年第5期38卷 1207-1218页

作者： TENG Zhenyuan YANG Hongbin ZHANG Qitao ohno Teruhisa Department of Applied Chemistry Faculty of EngineeringKyushu Institute of TechnologyKitakyushu 804-8550Japan School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou 215009P.R.China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060P.R.China

Carrier dynamics and surface reaction are two critical processes for determining the performance of photocatalytic *** designable polymer-based photocatalysts have shown promising protectives in energetic and environmental *** this prospective,we first distinguished the differences of physiochemical properties between polymer-based semiconductors and traditional inorganic ***,the effects of single-atom sites on the charge dynamics and reaction kinetics of polymer-based photocatalysts are further ***(excitation)-space(wavefunction)population analysis,which can provide relevant information to clarify the structure-excitation relationships after introducing the single atom sites was also *** the future,with the further development of artificial intelligence,the establishment of an energy function with a regression accuracy close to or reaching the level of density functional theory is highly desired to infer the energetic diagram of the photocatalytic systems at the excited ***,coordination structures,interaction with inorganic semiconductors,photocatalytic stability and solvent effects should also be carefully considered in the future studies of polymer-based photocatalyst.

关键词： Carrier dynamics Surface reaction Polymer Single-atom catalyst Dielectric property

Repositioning again of zonisamide for nerve regeneration

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2016年第4期11卷 541-542页

作者： Kinji ohno Hideki Yagi Bisei Ohkawara Division of Neurogenetics Center for Neurological Diseases and CancerNagoya University Graduate School of Medicine Department of Orthopedic Surgery Nagoya University Graduate School of Medicine

Drug repositioning is a strategy to identify a new application of a pre-approved drug,of which optimal dosage,administration routes,adverse effects,and contraindications are well *** repositioning enables fast and cost-effective application of an identified drug in clinical settings,and is especially suitable for orphan diseases,in which the number of patients is limited（Bernard,2014）.

关键词： Repositioning again zonisamide regeneration

Refractory Metal Nitride Schottky Contact on GaN

在线全文

学校读者我要写书评

暂无评论

半导体技术 2008年第S1期33卷 75-79页

作者： ohno Yasuo Institute of Technology and Science the University of Tokushima

For thermally stable or high-temperature operating,Schottky contact utilizing refractory metal nitride,TiN,MoN and ZrN,on n-GaN were *** refractory metal nitride films were formed by reactive sputtering in Ar and N2 ***-voltage characteristics show that ideality factors of 1.09-1.22 and barrier heights of 0.66-0.75 eV was obtained for the three metal *** the ZrN contact,the ideality factor and barrier height of became 1.06 and 0.77 eV,respectively,after 800 ℃ ***/GaN heterostructure FET with TiN gate was also *** obvious degradation was found for the TiN-gate device even after thermal treatment at 850 ℃.This shows that Schottky contact utilizing refractory metal nitride on GaN has the potential for thermal stability or high-temperature operating.

关键词： refractory metal nitride GaN Schottky contact Schottky diode

Future Applications of GaN Electron Devices

在线全文

学校读者我要写书评

暂无评论

半导体技术 2008年第S1期33卷 72-74,79页

作者： ohno Yasuo Institute of Technology and Science the University of Tokushima

0 Introduction Fifteen years have passed since the first AlGaN/GaN HFET was reported in *** FETs have already commercialized as microwave power devices,but volume production has not yet *** main application field is mobile phone base *** such applications,GaAs power transistors and silicon LDMOS have already been ***,advantages compared with these existing devices will be required,such as high efficiency,low distortion,low noise,high reliability and,especially,low ***,the latter two items are normally difficult for devices using new materials.

关键词： GaN In Future Applications of GaN Electron Devices

Surface manipulation of a triple-conducting cathode for protonic ceramic fuel cells to enhance oxygen reduction activity and CO_(2) tolerance

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2023年第12期87卷 450-459,I0012页

作者： Wenwen Zhang Hiroki Muroyama Yuichi Mikami Toshiaki matsui Koichi Eguchi Department of Energy and Hydrocarbon Chemistry Graduate School of EngineeringKyoto UniversityNishikyo-kuKyoto 615-8510Japan Technology Division Panasonic Holdings Corporation3-1-1 Yagumo-naka-machiMoriguchi CityOsaka 570-8501Japan

One of the main obstacles limiting the performance of protonic ceramic fuel cells(PCFCs) is the sluggish kinetics of the oxygen reduction reaction(ORR) at reduced ***,the surface manipulation of a triple-conducting cathode BaCe_(0.5)Pr_(0.3)Y_(0.2)O_(3-δ)(BCPY) by an efficient catalyst coating PrNi_(0.5)Co_(0.5)O_(3-δ)(PNC) to enhance the ORR activity and CO_(2) tolerance is *** developed PNC-coated BCPY cathode achieves the polarization resistance of 0.25 and 1.00 Ω cm^(2) at 600 and 500 ℃,respectively,approximately 1/5 of that for the pristine BCPY cathode(0.99 and 4.79 Ω cm^(2)),while maintaining an excellent CO_(2) *** single cell on a BaZr_(0.8)Yb_(0.2)O_(3-δ) electrolyte also exhibits a high peak power density of 0.79 W cm^(-2)at 700 ℃ and a stable operation for 200 h at 600 ℃.Such high ORR activity is mainly attributed to the synergistic effect of BCPY support and PNC ***,BCPY provides a tripleconducting path(mainly protons),and PNC nanoparticles facilitates surface oxygen exchange and steam adsorption/desorption processes due to the enriched surface oxygen *** study will provide a new design strategy for developing high-performance PCFCs cathode.

关键词： Triple-conducting cathode Surface manipulation Oxygen reduction reaction CO_(2)tolerance Protonic ceramicfuel cells