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World Journal of Gastroenterology 2010年第20期16卷 2542-2548页

作者： Zhang, Bin Ding, Jian-Hua yin, shu-Hui Zhang, Meng Zhao, Ke Second Artillary Gen Hosp Dept Colon Rectal Surg Beijing 100088 Peoples R China Second Artillary Gen Hosp Dept Lab Med Beijing 100088 Peoples R China

AIM:To evaluate the safety and efficacy of stapled transanal rectal resection(STARR),and to analyze the outcome of the patients 12-mo after the ***:From May 2007 to October 2008,50 female patients with rectocele and/or rectal intussusception underwent *** preoperative status,perioperative and postoperative complications at baseline,3,6 and 12-mo were *** were collected prospectively from standardized questionnaires for the assessment of constipation[constipation scoring system,Longo’s obstructed defecation syndrome(ODS)score system,symptom severity score],patient satisfaction (visual analogue scale),and quality of life(Patient Assessment of Constipation-Quality of Life Questionnaire).RESULTS:At a 12-mo follow-up,significant improvement in the constipation scoring system,ODS score system,symptom severity score,visual analog scale and quality of life(P<0.0001)was *** symptoms of constipation improved in 90%of patients at 12 mo after *** self-reported definitive outcome was excellent in 15(30%)patients,fairly good in 8(16%),good in 22(44%),and poor in 5(10%).CONCLUSION:STARR can be performed safely without major ***,the procedure seems to be effective for patients with obstructed defecation associated with symptomatic rectocele and rectal intussusception.

关键词： Stapled transanal rectal resection Obstructed defecation syndrome Rectocele Rectal intussusception

Influence of Deformation on Transformation of Low-Carbon and High Nb-Containing Steel During Continuous Cooling

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Journal of Iron and Steel Research International 2010年第2期17卷 43-47页

作者： yin shu-biao SUN Xin-jun LIU Qing-you ZHANG Zhi-bo Faculty of Materials and Metallurgical Engineering Kunming University of Science and Technology Kunming 630093 Yunnan China Institute for Structural Materials Central Iron and Steel Research Institute Beijing 100081 China Technology Center Kunming Iron and Steel Co Ltd Anning 650302 Yunnan China

The effect of deformation in the non-recrystallization region on the phase transformation for a low-carbon and high Nb-containing steel with coarse austenite grain size was investigated by means of dilatometric measurement and microstructure observation. The results show that with increasing the cooling rate, both the transformation start and finish temperatures measured by dilatometer are decreased, and the corresponding microstructure is transformed from ferrite and pearlite to full granular bainite gradually. The dynamic continuous cooling transformation diagram was plotted according to the dilatometric measurements and microstructure observations. Dilatometric measurements also show that the transformation start and finish temperatures of the test steel rise with increasing strain, strain rate and deformation temperature, and the reasons are discussed.

关键词： phase transformation Nb non-recrystallization region deformation

Joint Downlink Scheduling and Radio Resource Allocation for User-Individual QoS in Adaptive OFDMA Wireless Communication Systems

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The Journal of China Universities of Posts and Telecommunications 2006年第2期13卷 1-5页

作者： LU Yan-hui YUAN shu-chong yin Chang-chuan YUE Guang-xin School of Telecommunications Engineering Beijing University of Posts and Telecommunications Beijing 100876 P.R. China

This paper proposes and analyzes a downlink multi-carrier proportional fair scheduler and an adaptive radio resource allocation algorithm combining the scheduler. This scheduler and algorithm are suitable for orthogonal frequency division multiple access wireless communication systems supporting multiple quality of service classes. Our results demonstrate that the scheduler and algorithm provide user-explicit fairness with user-individual quality of service guarantees, but the joint schheme achieves a higher sum-rate capacity with flexible parameter settings compared with the multi-carrier proportional fair scheduler.

关键词： OFDMA adaptive radio resource allocation scheduling QoS

1-(4-ANTIPYRINYL)-3-(2, 4-DINITROPHENYL)-TRIAZENE AND ITS COLOUR REACTION WITH CADMIUM

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Chinese Chemical Letters 1993年第1期4卷 71-72页

作者： Bin XU Hong yin ZHOU shu yin TONG Department of chemistry Hubei Normal University.Huangshi435002

A new reagent,1(4 antipyriny1) 3(2,4-dinitropheny1)triazene(APDNBT), was synthesized in this lab and its analytical properties and its colour reaction with cadmium were studied.

关键词： TRIAZENE AND ITS COLOUR REACTION WITH CADMIUM ANTIPYRINYL DINITROPHENYL ITS

Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process:implications from a flume tank experiment

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Petroleum Science 2019年第6期16卷 1237-1254页

作者： Wen-Jie Feng Chang-Min Zhang Tai-Ju yin Yan-shu yin Jun-Ling Liu Rui Zhu Qing-Hai Xu Zhe Chen School of Geosciences Yangtze UniversityWuhan 430100HubeiChina

Autogenic processes are widely found in various sedimentary systems and they play an important role in the depositional evolution and corresponding sedimentary ***,autogenic processes are often affected by changing allogenic factors and are difficult to be identified and analyzed from modern and ancient *** the flume tank experiment under constant boundary conditions,the depositional process,evolution principles,and the sedimentary architecture of a river-dominated delta was presented,and a corresponding sedimentary architecture model was *** evolution of river-dominated delta controlled only by autogenic process is obviously periodic,and each autogenic cycle can be divided into an initial progradational stage,a middle retrogratational stage,and a late aggradational–progradational *** the initial progradational stage,one feeder channel incised into the delta plain,mouth bar(s)was formed in front of the channel mouth,and small-scale crevasse splays were formed on the delta *** the middle retrogradational stage,the feeder channel was blocked by the mouth bar(s)which grew out of water at the end of the initial stage,and a set of large-scale distributary splay complexes were formed on the delta *** distributary splay complexes were retrogradationally overlapped due to the continuous migration of the bifurcation point of the feeder *** the late aggradational–progradational stage,the feeder channel branched into several radial distributary channels,overlapped distributary channels were formed on the delta plain,and terminal lobe complexes were formed at the end of distributary *** three sedimentary layers formed in the three stages constituted an autogenic *** experimental delta consisted of six autogenic depositional *** allocation of accommodation space and the following adaptive sediments filling were the two main driving factors of the autogenic evolution of deltas.

关键词： River-dominated delta Autogenic process Depositional process Sedimentary architecture Flume tank experiment

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星系尺度上的玻色暗物质研究进展

天文学进展 2024年第3期42卷 443-459页

作者：沙艾德·艾力唐宇航杨术银吾尔尼沙·依明尼亚孜杨晓峰新疆大学物理科学与技术学院乌鲁木齐830046 中国科学院新疆天文台乌鲁木齐830011 西华师范大学物理与天文学院南充637000 中国科学院大学北京100049

星系尺度上的暗物质研究通常涉及各种不同的暗物质模型。在这些模型中,冷暗物质模型(CDM模型)受到了广泛关注。基于该理论模型的研究,可以较好地解释星系尺度和宇宙大尺度结构中的一些问题。然而,在研究星系小尺度结构时,存在一些该模... 详细信息

星系尺度上的暗物质研究通常涉及各种不同的暗物质模型。在这些模型中,冷暗物质模型(CDM模型)受到了广泛关注。基于该理论模型的研究,可以较好地解释星系尺度和宇宙大尺度结构中的一些问题。然而,在研究星系小尺度结构时,存在一些该模型无法解释的观测现象。近年来,玻色-爱因斯坦凝聚暗物质模型(BEC-DM模型)和模糊暗物质模型(FDM模型)作为CDM模型的替代方案,受到了广泛关注和大量研究。在BEC-DM模型中,暗物质粒子被假设为一种处于宏观量子态的玻色子;而FDM模型则将暗物质描述为一个具有波动特性和极小质量的粒子。研究这两种理论模型有助于了解不同理论模型对星系中暗物质密度分布和相关性质的影响。在这一背景下,对星系尺度上的玻色暗物质理论模型及其粒子探测进行了简要概述。回顾了暗物质研究的历史,介绍了暗物质候选粒子及对其的探测方法。重点介绍了BEC-DM模型和FDM模型作为传统CDM模型的替代方案,并探讨了它们在解决问题方面的优势。

关键词：玻色-爱因斯坦凝聚暗物质模型模糊暗物质模型冷暗物质模型类轴子

A Theoretical Study on Nonadiabatic Trapping Models of the Reaction NH+H←→N+H_2

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Chinese Chemical Letters 1999年第3期10卷 207-208页

作者： shu Xia yin Yan WANG WenLin FENG(Department of Chemistry,Beijing Normal University,Beijing 100873) Department of Chemistry Beijing Normal University Beijing100875 China

The properties of nonadiabatic trapping models of the reaction NH+H -N+H, are investigated in a collinear model as \veil as a non-collinear thermal reaction on the basis of theintrinsic reaction coordinate (IRC) intbrmation obtained by ah initio calculations at QCISD/631 IG** ie\el. Using the unitied statistical theory fornonadiabatic trapping models. the thermal rateconstants over the temperature range of 2000-3000K are computed which are in excellent agreementwith the experiment results.

关键词： Intrinsic reaction coordinate (IRC) unified statistical theory (UST) nonadiabatic trapping model thermal rate constant

Analysis of the successful clinical treatment of 140 patients with parathyroid adenoma:A retrospective study

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World Journal of Clinical Cases 2022年第28期10卷 10031-10041页

作者： Zhen-Xing Peng Yong Qin Juan Bai Jin-shu yin Bo-Jun Wei Department of Otorhinolaryngology Head and Neck Surgery Beijing Shijitan HospitalCapital Medical UniversityBeijing 100038China Department of Otorhinolaryngology and Head and Neck Surgery Peking University First HospitalBeijing 100034China Department of Thyroid and Neck Surgery Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020China

BACKGROUND Parathyroid adenoma(PA) sometimes recurs after surgery,how to improve the surgical success rate of PA is the key to the treatment of this *** To investigate the clinical features,diagnosis,and surgical treatment of patients with *** Patients who were pathologically confirmed with PA and had undergone surgery for the first time between January 2010 and December 2017 at the Beijing Shijitan Hospital affiliated to Capital Medical University were included in the *** clinical features,localization diagnosis,and surgical treatment of these patients were *** Of the 140 patients,32 were male and 108 were female;132 cases had one adenoma,and 8 had two *** addition,114 cases had clinical symptoms,among which 51,28,23,8,and 4 had urinary system,skeletal system,digestive system,neuromuscular system,and neuropsychiatric symptoms,respectively,while 26 cases had no obvious *** median level of preoperative parathyroid hormone(PTH) was 201.0 pg/m *** positive detection rate of technetium-99m sestamibi(Tc-99m MIBI) single-photon emission computed tomography/computed tomography(SPECT/CT),ultrasound examination,and the combined use of Tc-99m MIBI SPECT/CT and ultrasound examination was 92.9%,85.5%,and 96.4%,*** surgery was performed in all patients,and PTH was monitored during *** success rate of surgery was 98.6%.After surgery,21 cases developed hypocalcemia,1 case developed temporary hoarseness,and 19 cases had transient hypoparathyroidism but there was no permanent hypoparathyroidism,postoperative hemorrhage,or hematoma in the surgical *** For patients with clinically unexplained skeletal system,urinary system,and neuropsychiatric symptoms,the possibility of PA should be *** examinations such as ultrasound and Tc-99m MIBI SPECT/CT could be integrated before surgery to obtain accurate localization *** preoperative localization,intraoperative PTH monitoring,an

关键词： Primary hyperparathyroidism Parathyroid adenoma Technetium-99m sestamibi SPECT/CT Surgical treatment Localization diagnosis Intraoperative parathyroid hormone monitoring

Easy removing of phenol from wastewater using vegetable oil-based organic solvent in emulsion liquid membrane process

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Chinese Journal of Chemical Engineering 2017年第1期25卷 45-52页

作者： Norasikin Othman Norul Fatiha Mohamed Noah Lim yin shu Zing-Yi Ooi Norela Jusoh Mariani Idroas Masahiro Goto Centre of Lipids Engineering and Applied Research (CLEAR) Ibnu Sina Institute for Scientuific and Industrial Research (Ibnu Sina ISIR) Universiti Teknologi Malaysia 81310 UTM Johor BahruJohor Malaysia Faculty of Chemicul and Energy Engineering Universiti Teknologi Malaysia 81310 UTM Johor BahruJohor Malaysia Department of Applied Chemistry Graduate School of Engineering Kyushu University 744 Motooka Nishi-ka Fukuoka-shi fukuoka 819-0395Japan

Phenol is considered as pollutant due to its toxicity and carcinogenic ***,variety of innovative methods for separation and recovery of phenolic compounds is developed in order to remove the unwanted phenol from wastewater and obtain valuable phenolic *** of potential method is extraction using green based liquid organic ***,the feasibility of using palm oil was *** this research,palm oil based organic phase was used as diluents to treat a simulated wastewater containing 300×10^(-6) of phenol solution using emulsion liquid membrane process(ELM).The stability of water-in-oil(W/O) emulsion on diluent composition and the parameters affecting the phenol removal efficiency and stability of the emulsion;such as emulsification speed,emulsification time,agitation speed,surfactant concentration,pH of external phase,contact time,stripping agent concentration and treat ratio were carried *** results of ELM study showed that at ratio7 to 3 of palm oil to kerosene,5 min and 1300 r·min^(-1) of emulsification process the stabile primary emulsion were ***,no carrier is needed to facilitate the phenol *** experimental conditions of500 r·min^(-1) of agitation speed,3%Span 80,pH 8 of external phase,5 min of contact time,0.1 mol·L^(-1) NaOH as stripping agent and 1:10 of treat ratio,the ELM process was very promising for removing the phenol from the *** extraction performance at about 83%of phenol was removed for simulated wastewater and an enrichment of phenol in recovery phase as phenolate compound was around 11 times.

关键词： Vegetable palm oil-based Liquid membrane Phenol removal Wastewater

Autonomous navigation of an asteroid orbiter enhanced by a beacon satellite in a high-altitude orbit

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Astrodynamics 2024年第3期8卷 375-400页

作者： Weidong yin Yu Shi Leizheng shu Yang Gao University of Chinese Academy of Sciences Beijing100049China Key Laboratory of Space Utilization Technology and Engineering Center for Space UtilizationChinese Academy of SciencesBeijing100094China

This study aims to assess the autonomous navigation performance of an asteroid orbiter enhanced using an inter-satellite link to a beacon *** navigation includes the orbit determination of the orbiter and beacon,and asteroid gravity estimation without any ground station *** measurements were acquired using satellite-to-satellite tracking(SST)and optical observation of asteroid surface *** study presents a new orbiter-beacon SST scheme,in which the orbiter circumnavigates the asteroid in a low-altitude strongly-perturbed orbit,and the beacon remains in a high-altitude weakly-perturbed *** used Asteroid 433 Eros as an example,and analyzed and designed low-and high-altitude orbits for the orbiter and *** navigation measurements were precisely modeled,extended Kalman filters were devised,and observation configuration was analyzed using the Cramer-Rao lower bound(CRLB).Monte Carlo simulations were carried out to assess the effects of the orbital inclination and altitudes of the orbiter and beacon as key influencing *** simulation results showed that the proposed SST scheme was an effective solution for enhancing the autonomous navigation performance of the orbiter,particularly for improving the accuracy of gravity estimation.

关键词： asteroid exploration gravity estimation orbit determination satellite-to-satellite tracking(SST) optical observation