检索结果-南通市图书馆

色谱 2012年第4期30卷 369-373页

作者： Kazuaki ITO Jun SAKAMOTO kazuya nagaoka Yohichi TAKAYAMA Takashi KANAHORI Hiroshi SUNAHARA Tsuneo HAYASHI Shinji SATO Takeshi HIROKAWA Kazuhiko TANAKA Department of Biotechnology and Chemistry Faculty of EngineeringKinki University Hokoku Ind.Co.Ltd. Tosoh Co.Ltd. Department of Applied Chemistry Graduate School of EngineeringHiroshima University Department of Development Science Graduate School for International Development and CooperationHiroshima University

The analysis of seven aliphatic carboxylic acids(formic,acetic,propionic,iso-butyric,n-butyric,iso-valeric and n-valeric acid) in anaerobic digestion process waters for biogas production was examined by ion-exclusion chromatography with dilute acidic eluents(benzoic acid,perfluorobutyric acid(PFBA) and sulfuric acid) and non-suppressed conductivity/ultraviolet(UV) *** columns used were a styrene/divinylbenzene-based strongly acidic cation-exchange resin column(TSKgel SCX) and a polymethacrylate-based weakly acidic cation-exchange resin column(TSKgel Super IC-A/C).Good separation was performed on the TSKgel SCX in shorter retention *** the TSKgel Super IC-A/C,peak shape of the acids was sharp and symmetrical in spite of longer retention *** addition,the mutual separation of the acids was good except for iso-and n-butyric *** better separation and good detection was achieved by using the two columns(TSKgel SCX and TSKgel Super IC-A/C connected in series),lower concentrations of PFBA and sulfuric acid as eluents,non-suppressed conductivity detection and UV detection at 210 *** analysis was applied to anaerobic digestion process *** chromatograms with conductivity detection were relatively simpler compared with those of UV *** use of two columns with different selectivities for the aliphatic carboxylic acids and the two detection modes was effective for the determination and identification of the analytes in anaerobic digestion process waters containing complex matrices.

关键词： ion-exclusion chromatography(IEC) strongly and weakly acidic cation-exchange resin columns perfluorobutyric and sulfuric acids eluents non-suppressed conductivity and ultraviolet(UV) detections aliphatic carboxylic acids anaerobic digestion process waters

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Orbit insertion strategy of Hayabusa2’s rover with large release uncertainty around the asteroid Ryugu

引用

Astrodynamics 2020年第4期4卷 309-329页

作者： Yusuke Oki Kent Yoshikawa Hiroshi Takeuchi Shota Kikuchi Hitosi Ikeda Daniel JScheeres Jay WMcMahon Junichiro Kawaguchi Yuto Takei Yuya Mimasu Naoko Ogawa Go Ono Fuyuto Terui Manabu Yamada Toru Kouyama Shingo K ameda kazuya Yoshida Kenji nagaoka Tetsuo Yoshimitsu Takanao Saiki Yuichi Tsuda Japan A erospace Exploration Agency T'sukuba 305-8505Japan Japan Aerospace Exploration Agency Sagamihara 252-5210Japan University of Colorado BoulderCO 80309USA Planetary Exploration Research Center Chiba Institute of TechnologyNarashino 275-0016Japan National Institute of Aduanced Industrial Science and Technology Koto-ku 135-0064Japan Rikkyo University Toshima-ku 171-8501Japan Department of A erospace Engineering Tohoku UniversitySendai 980-8579Japan Kyushu Institute of Technology Kitakyusyu 804-8550Japan

This paper describes the orbit design of the deployable payload Rover 2 of MINERVA-II,installed on the Hayabusa2 *** Rover 2 did not have surface exploration capabilities,the operation team decided to experiment with a new strategy for its deployment to the *** rover was ejected at a high altitude and made a semi-hard landing on the surface of the asteroid Ryugu after several *** on the orbital analysis around Ryugu,the expected collision speed was tolerable for the rover to function *** the rover could not control its position,its motion was entirely governed by the initial ***,the largest challenge was to insert the rover into a stable orbit(despite its large release uncertainty),and avoid its escape from Ryugu due to an environment strongly perturbed by solar radiation pressure and gravitational *** study investigates the solution space of the orbit around Ryugu and evaluates the orbit’s robustness by utilizing Monte Carlo simulations to determine the orbit insertion *** analyzing the flight data of the rover operation,we verified that the rover orbited Ryugu for more than one period and established the possibility of a novel method for estimating the gravity of an asteroid.

关键词： solar radiation pressure augmented elliptic Hill three-body problem gravitational irregularity

来源：

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

Vonoprazan 20 mg vs lansoprazole 30 mg for endoscopic submucosal dissection-induced gastric ulcers

引用

World Journal of Gastrointestinal Endoscopy 2016年第19期8卷 716-722页

作者： kazuya Takahashi Yuichi Sato Junji Kohisa Jun Watanabe Hiroki Sato Kenichi Mizuno Satoru Hashimoto Shuji Terai Department of Endoscopy Niigata University Medical and Dental Hospital Division of Gastroenterology and Hepatology Sado General Hospital Division of Gastroenterology and Hepatology Graduate School of Medical and Dental SciencesNiigata University Division of Gastroenterology and Hepatology Nagaoka Red Cross Hospital

AIM To compare the healing effects of vonoprazan and lansoprazole on gastric ulcers induced by endoscopic submucosal dissection(ESD).METHODS Data were obtained from a total of 26 *** patients were randomized to the vonoprazan group and 12 were randomized to the lansoprazole *** were administered either 20 mg vonoprazan or 30 mg lansoprazole per day after *** images just after ESD,on day 8,and on day 28 were used for the evaluation of the shrinking rate of ESD *** shrinking rates and the incidence of delayed bleeding were compared between the 2 *** The shrinking rates of ESD ulcers on day 8 [vonoprazangroup: 61.8%(range: 24.0%-91.1%),lansoprazole group: 71.3%(range: 25.2%-88.6%)] and on day 28 [vonoprazan group: 95.3%(range: 76.2%-100%),lansoprazole group: 97.2%(range: 81.1%-99.8%)] were not statistically different between the 2 *** day 28,most of the ulcers in both groups healed to more than 90%,whereas 3 of 14(21.4%) in the vonoprazan group and 1 of 12(8.3%) in the lansoprazole group had delayed ulcer healing,which was not statistically different(P = 0.356).The frequency of delayed bleeding was 0 in the both *** together,there were no significant differences between the two drug *** Our study indicates that vonoprazan is potent for the management of ESD ulcers although lansoprazole is also sufficient and cost-effective.

关键词： Lansoprazole Gastric cancer Endoscopic submucosal dissection Potassium-competitive acid blocker Proton pump inhibitor Vonoprazan

来源：

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

Correction to: Orbit insertion strategy of Hayabusa2’s rover with large release uncertainty around the asteroid Ryugu

引用

Astrodynamics 2021年第2期5卷 183-183页

作者： Yusuke Oki Kent Yoshikawa Hiroshi Takeuchi Shota Kikuchi Hitosi Ikeda Daniel J.Scheeres Jay W.McMahon Junichiro Kawaguchi Yuto Takei Yuya Mimasu Naoko Ogawa Go Ono Fuyuto Terui Manabu Yamada Toru Kouyama Shingo Kameda kazuya Yoshida Kenji nagaoka Tetsuo Yoshimitsu Takanao Saiki Yuichi Tsuda Japan Aerospace Exploration Agency Tsukuba305-8505Japan Japan Aerospace Exploration Agency Sagamihara252-5210Japan University of Colorado BoulderCO80309USA Planetary Exploration Research Center Chiba Institute of TechnologyNarashino275-0016Japan National Institute of Advanced Industrial Science and Technology Koto-ku135-0064Japan Rikkyo University Toshima-ku171-8501Japan Department of Aerospace Engineering Tohoku UniversitySendai980-8579Japan Kyushu Institute of Technology Kitakyusyu804-8550Japan

Correction to:Oki,Y.,Yoshikawa,K.,Takeuchi,*** *** insertion strategy of Hayabusa2's rover with large release uncertainty around the asteroid *** 2020,4(4):309-329 https://***/10.1007/s42064-020-0080-y The article“Orbit insertion strategy of Hayabusa2’s rover with large release uncertainty around the asteroid Ryugu”written by Yusuke Oki,Kent Yoshikawa,Hiroshi Takeuchi et al.,was originally published electronically on the publisher’s internet portal(currently SpringerLink)on 05 November 2020 without open *** publication in Volume 4,Issue 4,page 309–329,the author(s)decided to opt for Open Choice and to make the article an open access publication.

关键词： asteroid insertion release

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：