检索结果-南通市图书馆

Study of the Effect of Acetic Acid and Phosphate on Copper Corrosion by Immersion Tests

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2024年第1期15卷 15-23页

作者： yuna yamaguchi Kaho Sugiura Toyohiro arima Fuka Takahashi Itaru Ikeda yutaka yamada Osamu Sakurada Department of Chemistry and Biomolecular Science Faculty of Engineering Gifu University Gifu Japan Dai-Dan Co. Ltd. Saitama Japan Daiwa Techno Co. Ltd. Gifu Japan

It was reported that hemispheric corrosion occurred in copper tubes in an acetic acid environment. When hemispheric corrosion occurred, corrosion could easily progress if water then flowed into the copper pipe, and countermeasures were needed. Therefore, we studied the copper corrosion caused by acetic acid. The present work investigated the relationship between the corrosion form of copper and acetic acid concentration using phosphorous-deoxidized copper, and reported that hemispherical corrosion was observed at acetic acid concentrations of 0.01 to 1 vol.% (0.002 to 0.2 mol·L-1) in the immersion test. In this study, the effects of acetic acid and phosphate on copper corrosion were examined using oxygen-free copper in immersion tests. The results suggested that different concentrations of phosphate in acetic acid solutions and the presence or absence of acetic acid and phosphate affected the corrosion of copper, resulting in different corrosion forms and corrosion progress.

关键词： Acetic Acid Phosphate Oxygen-Free Copper Hemispherical Corrosion Ant-Nest Corrosion

左心室射血分数保留的心力衰竭患者的血钾水平和心血管事件

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

中华高血压杂志(中英文) 2019年第8期 798-798页

作者： Nishihara T Tokitsu T Sueta D Takae M Oike F Fujisue K Usuku H Takashio S Hanatani S Kanazawa H arima y Sakamoto K Izumiya y yamabe H Kaikita K yamamoto E Tsujita K 陈云叶鹏

虽然血钾水平与慢性心力衰竭患者预后密切相关,但血钾水平在射血分数保留的心力衰竭(heart failure with preserved ejection fraction,HFpEF)患者的心血管结局中的临床意义尚不完全清楚。方法:本研究是回顾性单中心的观察研究,共招募... 详细信息

虽然血钾水平与慢性心力衰竭患者预后密切相关,但血钾水平在射血分数保留的心力衰竭(heart failure with preserved ejection fraction,HFpEF)患者的心血管结局中的临床意义尚不完全清楚。方法:本研究是回顾性单中心的观察研究,共招募入住熊本大学医院的持续性HFpEF患者506例,并根据出院时血钾水平的四分位数分为4组(组1:血钾<4.1,组2:血钾4.1～<4.4,组3:血钾4.4～<4.7,组4:血钾

关键词：射血分数保留的心力衰竭心血管事件钾水平左心室

A short history of nuclear magnetic moments and GT transitions

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2011年第2期54卷 188-193页

作者： arima Akito Musashi University

We summarize the history and our present understanding of nuclear magnetic moments and Gamow-Teller *** roles of configuration mixing,meson exchange currents and relativistic effects are *** evidence for the importanc... 详细信息

关键词： nuclear magnetic moments Gamow-Teller transitions

Characteristic of Local Boiling Heat Transfer of Ammonia and Ammonia/Water Binary Mixture on the Plate Type Evaporator

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2011年第4期20卷 332-342页

作者： Akio OKAMOTO Hirofumi arima yasuyuki IKEGAMI Titanium Division KOBE STEEL Ltd.Japan Institute of Ocean Energy Saga UniversityJapan

Power generation using small temperature difference such as ocean thermal energy conversion(OTEC)and discharged thermal energy conversion(DTEC)is expected to be the countermeasures against global warming *** ammonia and ammonia/water are used in evaporators for OTEC and DTEC as working fluids,the research of their local boiling heat transfer is important for improvement of the power generation *** of local boiling heat transfer coefficients were performed for ammonia/water mixture(z=0.9-1)on a vertical flat plate heat exchanger in a range of mass flux(7.5-15 kg/m2s),heat flux(15-23 kW/m 2),and pressure(0.7-0.9 MPa).The result shows that in the case of ammonia/water mixture,the local heat transfer coefficients increase with an increase of mass flux and composition of ammonia,and decrease with an increase of heat flux.

关键词： Local Heat Transfer Ammonia/Water Mixture Plate Type Evaporator OTEC

H2FPEF评分预测左心室射血分数保留的心力衰竭患者预后的价值

在线全文

学校读者我要写书评

暂无评论

中华高血压杂志(中英文) 2020年第6期 598-598页

作者： Sueta D yamamoto E Nishihara T Tokitsu Takanori Fujisue Koichiro Oike Fumi Takae M Usuku H Takashio S arima y Suzuki S Nakamura T Ito M Kanazawa H Sakamoto K Kaikita K Tsujita Kenichi 周卫

H2FPEF[H2表示体质量增加（heavy）和高血压（hypertensive）、F表示心房颤动（atrial fibrillation）、P表示肺动脉高压（pulmonary hypertension）、E表示老年（elder）、F表示充盈压（filling pressure）]评分是诊断左心室射血分数...

关键词：

肠毒性甲氧西林耐药金黄色葡萄球菌的预防及治疗

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中华医学信息导报 2008年第13期23卷 11-11页

作者： y yoshida y Sumiyama S Kusachi y arima H Tanaka J Sato T Saito J Magao y Saida M Watanabe 张波（译）日本东京

目的：外毒素类超抗原如中毒性休克毒素1是日本院内耐甲氧西林金黄色葡萄球菌（HA-MRSA）的主要致病因子，葡萄球菌肠毒性涉及脓毒症休克及MRSA肠炎。为控制MRSA肠毒素感染，我们研究了稳态肠道菌群。

关键词：甲氧西林耐药金黄色葡萄球菌中毒性休克耐甲氧西林金黄色葡萄球菌肠炎治疗预防外毒素类 MRSA

The orbital g-factor and related sum rules

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2011年第2期54卷 194-197页

作者： BENTZ Wolfgang arima Akito Department of Physics School of ScienceTokai University Musashi University

The renormalization of the orbital g-factor in nuclei is discussed on the basis of gauge *** relation of the orbital g-factor to the integrated E1 photoabsorption cross section is reviewed,and its relation to the M1 s... 详细信息

关键词： nuclear magnetic moments g-factors giant resonances sum rules

Optimal channels of the Garvey-Kelson mass relations in extrapolation

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2017年第2期60卷 18-23页

作者： Man Bao Zeng He yiyuan Cheng yuMin Zhao Akito arima Department of Physics and Astronomy Shanghai Jiao Tong University Shanghai 200240 China Northwest Institute of Nuclear Technology Xi'an 710024 China IFSA Collaborative Innovation Center Shanghai Jiao Tong University Shanghai 200240 China Musashi Gakuen 1-26-1 Toyotamakami Nerima-ku Tokyo 176-8533 Japan

Garvey-Kelson mass relations connect nuclear masses of neighboring nuclei within high accuracy, and provide us with convenient tools in predicting unknown masses by extrapolations from existent experimental data. In this paper we investigate optimal"channels" of the Garvey-Kelson relations in extrapolation to the unknown regions, and tabulate our predicted masses by using these optimized channels of the Garvey-Kelson relations.

关键词： Garvey-Kelson mass relations accuracy predicted masses

Relativistic description of second-order correction to nuclear magnetic moments with point-coupling residual interaction

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2011年第2期54卷 204-209页

作者： LI Jian MENG Jie RING Peter yAO JiangMing arima Akito State Key Laboratory for Nuclear Physics and Technology School of Physics Peking University Beijing 100871 China School of Physics and Nuclear Energy Engineering Beihang University Beijing 100191 China Department of Physics University of Stellenbosch Stellenbosch South Africa Physik-Department der Technischen Universitat Munchen D-85748 Garching Germany School of Physical Science and Technology Southwest University Chongqing 400715 China Science Museum Japan Science Foundation 2-1 Kitanomaru-koen Chiyoda-ku Tokyo 102-0091 Japan

Using the single particle states and the residual interaction derived from the relativistic point-coupling model with the PC-F1 parameter set,the second-order core polarization corrections to nuclear magnetic moments of LS closed shell nuclei ±1 nucleon with A = 15,17,39 and 41 are studied and compared with previous non-relativistic *** is found that the second-order corrections are *** these corrections,the isovector magnetic moments of the concerned nuclei are well reproduced,especially those for A = 17 and A = 41.

关键词： second-order core polarization magnetic moments relativistic point-coupling model residual interaction