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| 1 | UNSTEADY FLOW ANALYSIS AND EXPERIMENTAL INVESTIGATION OF AXIAL-FLOW PUMP显示文摘The three-dimensional unsteady turbulent flow in axial-flow pumps was simulated based on Navier-Stoke solver embedded with k-ε RNG turbulence model and SIMPLEC algorithm.Numerical results show that the unsteady prediction results are more accurate than the steady results,and the maximal error of unsteady prediction is only 4.54%.The time-domain spectrums show that the static pressure fluctuation curves at the inlet and outlet of the rotor and the outlet of the stator are periodic,and all have four peaks and four valleys.The pressure fluctuation amplitude increases from the hub to the tip at the inlet and outlet of the rotor,but decreases at the outlet of the stator.The pressure fluctuation amplitude is the greatest at the inlet of the rotor,and the average amplitude decreases sharply from the inlet to the outlet.The frequency spectrums obtained by Fast Fourier Transform(FFT) show that the dominant frequency is approximately equal to the blade passing frequency.The static pressure on the pressure side of hydrofoil on different stream surfaces remains almost consistent,and increases gradually from the blade inlet to the exit on the suction side at different time steps.The axial velocity distribution is periodic and is affected by the stator blade number at the rotor exit.The experimental results show that the flow is almost axial and the pre-rotation is very small at the rotor inlet under the conditions of 0.8 QN -1.2 QN.Due to the clearance leakage,the pressure,circulation and meridional velocity at the rotor outlet all decrease near the hub leakage and tip clearance regions. | ZHANG De-sheng SHI Wei-dong CHEN Bin GUAN Xing-fan | 2010 | Journal of Hydrodynamics2010，22，1： | 111 |
| 2 | Research progress of heavy metal pollution in China:Sources,analytical methods,status,and toxicity显示文摘Heavy metal pollution is one of the most serious environmental problems in China and a large number of people are threatened by heavy metal pollution.Extensive damage to human organs,such as liver,kidney,digestion system,and nervous system can be caused by uptake of excess heavy metals.Heavy metals in the environment can originate from both natural and anthropogenic sources.Although contamination of heavy metals has been known to be a severe environmental problem for decades,it is still getting worse in recent years and there are few feasible approaches to resolve this problem.Due to their high toxicity,prevalent existence and persistence in the environment,lead(Pb),mercury(Hg),cadmium(Cd),chromium(Cr) and arsenic(As) are commonly considered as the priority heavy metals which should be concerned and their emission should be controlled in China.This paper reviewed the pollution of heavy metals in China,focusing on the following four aspects:current status of heavy metal pollution in China,sources of heavy metals in China,toxicity and potential risk,and possible reduction strategies. | HE Bin YUN ZhaoJun SHI JianBo JIANG GuiBin | 2013 | Chinese Science Bulletin2013，58，2： | 114 |
| 3 | Ythdc2 is an N^6-methyladenosine binding protein that regulates mammalian spermatogenesis显示文摘N 6-methyladenosine (m 6 一) 是在真核细胞的 mRNA 的最普通的内部修正。它动态地被安装并且搬迁,并且充当 mRNA 新陈代谢,包括干细胞 pluripotency 的调整生物过程,房间区别,和精力动态平衡的新层。m 6 A 被选择有约束力的蛋白质认出;YTHDF1 和 YTHDF3 在音乐会工作影响 m 6包含 A 的 mRNAs, YTHDF2 帮助 mRNA 腐烂,和 YTHDC1 影响它的目标的原子处理。YTHDC2 的生物功能, YTH 蛋白质家庭,的最后的成员仍然保持未知。我们报导 YTHDC2 有选择地绑 m 6 在它的一致主题的 A。YTHDC2 提高它的目标的翻译效率并且也减少他们的 mRNA 丰富。Ythdc2 猛烈老鼠是不肥沃的;男性们让显著地更小的睾丸和女性同窝出生的人与那些相比有显著地更小的卵巢。Ythdc2 猛烈老鼠的细菌房间不经过 zygotene 阶段发展,因此,当成熟分裂开始, Ythdc2 是在睾丸的 upregulated。因此, YTHDC2 是 m 6 在精子发生期间起关键作用的 A 绑定蛋白质。 | Phillip J Hsu Yunfei Zhu Honghui Ma Yueshuai Guo Xiaodan Shi Yuanyuan Liu Meijie Qi Zhike Lu Hailing Shi Jianying Wang Yiwei Cheng Guanzheng Luo Qing Dai Mingxi Liu Xuejiang Guo Jiahao Sha Bin Shen Chuan He | 2017 | Cell Research2017，27，9： | 96 |
| 4 | Stable classi?cation with limited sample: transferring a 30-m resolution sample set collected in 2015 to mapping 10-m resolution global land cover in 2017显示文摘As the world strives to reduce the impact of population growth, urbanization, agricultural expansion, and climate change on food security, energy and water shortage, resource over-exploration, biodiversity loss, environmental pollution, and ultimately human health, timely and higher resolution land cover information is urgently needed to achieve the sustainable development goals of the United Nations. | Peng Gong Han Liu Meinan Zhang Congcong Li Jie Wang Huabing Huang Nicholas Clinton Luyan Ji Wenyu Li Yuqi Bai Bin Chen Bing Xu Zhiliang Zhu Cui Yuan Hoi Ping Suen Jing Guo Nan Xu Weijia Li Yuanyuan Zhao Jun Yang Chaoqing Yu Xi Wang Haohuan Fu Le Yu Iryna Dronova Fengming Hui Xiao Cheng Xueli Shi Fengjin Xiao Qiufeng Liu Lianchun Song | 2019 | Science Bulletin2019，64，6： | 166 |
| 5 | A complete sequence and comparative analysis of a SARS-associated virus(Isolate BJ01)显示文摘The genome sequence of the Severe Acute Respiratory Syndrome (SARS)-associated virus provides essential information for the identification of pathogen(s), exploration of etiology and evolution, interpretation of transmission and pathogenesis, development of diagnostics, prevention by future vaccination, and treatment by developing new drugs. We report the complete genome sequence and comparative analysis of an isolate (BJ01) of the coronavirus that has been recognized as a pathogen for SARS. The genome is 29725 nt in size and has 11 ORFs (Open Reading Frames). It is composed of a stable region encoding an RNA-dependent RNA polymerase (composed of 2 ORFs) and a variable region representing 4 CDSs (coding sequences) for viral structural genes (the S, E, M, N proteins) and 5 PUPs (putative uncharacterized proteins). Its gene order is identical to that of other known coronaviruses. The sequence alignment with all known RNA viruses places this virus as a member in the family of Coronaviridae. Thirty putative substitutions have been identified by comparative analysis of the 5 SARS- associated virus genome sequences in GenBank. Fifteen of them lead to possible amino acid changes (non-synonymous mutations) in the proteins. Three amino acid changes, with predicted alteration of physical and chemical features, have been detected in the S protein that is postulated to beinvolved in the immunoreactions between the virus and its host. Two amino acid changes have been detected in the Mprotein, which could be related to viral envelope formation. Phylogenetic analysis suggests the possibility of non-human origin of the SARS-associated viruses but provides noevidence that they are man-made. Further efforts should focus on identifying the etiology of the SARS-associated virus and ruling out conclusively the existence of otherpossible SARS-related pathogen(s). | QIN E'de ZHU Qingyu YU Man FAN Baochang CHANG Guohui SI Bingyin YANG Bao PENG Wenming JIANG Tao LIU Bohua DENG Yongqiang LIU Hong ZHANG Yu WANG Cui LI Yuquan GAN Yonghua LI Xiaoyu L Fushuang TAN Gang CAO Wuchun, YANG Ruifu Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China WANG Jian, LI Wei, XU Zuyuan, LI Yan, WU Qingfa, LIN Wei, CHEN Weijun, TANG Lin, DENG Yajun, HAN Yujun, LI Changfeng, LEI Meng, LI Guoqing, LI Wenjie, L Hong, SHI Jianping, TONG Zongzhong, ZHANG Feng, LI Songgang, LIU Bin, LIU Siqi, DONG Wei, WANG Jun, Gane K-S Wong, YU Jun & YANG Huanming* Beijing Genomics Institute, Chinese Academy of Sciences, Beijing 101300 National Center for Genome Information, Beijing 101300, China | 2003 | Chinese Science Bulletin2003，48，10： | 121 |
| 6 | 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents显示文摘Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up. | Cheng Wang Yaqi Li Ying Liao Hong Tian Min Huang Xiangyu Dong Lin Shi Jinghui Sun Hongfang Jin Junbao Du Jindou An Jie Chen Mingwu Chen Qi Chen Sun Chen Yonghong Chen Zhi Chen Adolphus Kai-tung Chau Junbao Du Zhongdong Du Junkai Duan Hongyu Duan Xiangyu Dong Lin Feng Lijun Fu Fangqi Gong Yonghao Gui Ling Han Zhenhui Han Bing He Zhixu He Xiufen Hu Yimin Hua Guoying Huang Min Huang Ping Huang Yujuan Huang Hongfang Jin Mei Jin Bo Li Fen Li Tao Li Xiaohui Li Xiaoyan Liu Yan Li Haitao Lv Tiewei Lv Zipu Li Luyi Ma Silin Pan Yusheng Pang Hua Peng Yuming Qin Jie Shen Lin Shi Kun Sun Jinghui Sun Hong Tian Jie Tian Cheng Wang Hong Wang Lei Wang Jinju Wang Wendi Wang Yuli Wang Rongzhou Wu Tianhe Xia Yanyan Xiao Chunhong Xie Yanlin Xing Zhenyu Xiong Baoyuan Xu Yi Xu Hui Yan Shiwei Yang Qijian Yi Xia Yu Xianyi Yu Yue Yuan Hongyan Zhang Huili Zhang Li Zhang Qingyou Zhang Xi Zhang Yanmin Zhang Zhiwei Zhang Cuifen Zhao Bin Zhou Hua Zhu | 2018 | Science Bulletin2018，63，23： | 54 |
| 7 | An overview on flight dynamics and control approaches for hypersonic vehicles显示文摘With the capability of high speed flying, a more reliable and cost efficient way to access space is provided by hypersonic flight vehicles. Controller design, as key technology to make hypersonic flight feasible and efficient, has numerous challenges stemming from large flight envelope with extreme range of operation conditions, strong interactions between elastic airframe, the propulsion system and the structural dynamics.This paper briefly presents several commonly studied hypersonic flight dynamics such as winged-cone model,truth model, curve-fitted model, control oriented model and re-entry motion. In view of different schemes such as linearizing at the trim state, input-output linearization, characteristic modeling, and back-stepping, the recent research on hypersonic flight control is reviewed and the comparison is presented. To show the challenges for hypersonic flight control, some specific characteristics of hypersonic flight are discussed and the potential future research is addressed with dealing with actuator dynamics, aerodynamic/reaction-jet control, flexible effects,non-minimum phase problem and dynamics interaction. | XU Bin SHI ZhongKe | 2015 | Science China(Information Sciences)2015，58，7： | 58 |
| 8 | Orbit determination and time synchronization for a GEO/IGSO satellite navigation constellation with regional tracking network显示文摘Aiming at regional services,the space segment of COMPASS (Phase I) satellite navigation system is a constellation of Geostationary Earth Orbit (GEO),Inclined Geostationary Earth Orbit (IGSO) and Medium Earth Orbit (MEO) satellites.Precise orbit determination (POD) for the satellites is limited by the geographic distribution of regional tracking stations.Independent time synchronization (TS) system is developed to supplement the regional tracking network,and satellite clock errors and orbit data may be obtained by simultaneously processing both tracking data and TS data.Consequently,inconsistency between tracking system and TS system caused by remaining instrumental errors not calibrated may decrease navigation accuracy.On the other hand,POD for the mixed constellation of GEO/IGSO/MEO with the regional tracking network leads to parameter estimations that are highly correlated.Notorious example of correlation is found between GEO's orbital elements and its clock errors.We estimate orbital elements and clock errors for a 3GEO+2IGSO constellation in this study using a multi-satellite precise orbit determination (MPOD) strategy,with which clock error elimination algorithm is applied to separate orbital and clock estimates to improve numerical efficiency.Satellite Laser Ranging (SLR) data are used to evaluate User Ranging Error (URE),which is the orbital error projected on a receiver's line-of-sight direction.Two-way radio-wave time transfer measurements are used to evaluate clock errors.Experimenting with data from the regional tracking network,we conclude that the fitting of code data is better than 1 m in terms of Root-Mean-Square (RMS),and fitting of carrier phase is better than 1 cm.For orbital evaluation,difference between computed receiver-satellite ranging based on estimated orbits and SLR measurements is better than 1 m (RMS).For clock estimates evaluation,2-hour linear-fitting shows that the satellite clock rates are about 1.E-10 s/s,while receiver clock rates are about 1×10 13-1×10 12 s/s.For the 72-hour POD experiment,the average differences between POD satellite clock rates estimates and clock measurements based on TS system are about 1×10 13 s/s,and for receiver clock rates,the differences are about 1×10 15 s/s. | ZHOU ShanShi HU XiaoGong WU Bin LIU Li QU WeiJing GUO Rui HE Feng CAO YueLing Wu XiaoLi ZHU LingFeng SHI Xin TAN HongLi | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，6： | 44 |
| 9 | Double contrast-enhanced two-dimensional and three-dimensional ultrasonography for evaluation of gastric lesions显示文摘AIM:To investigate the value of two-dimensional(2D) and three-dimensional(3D) double contrast-enhanced ultrasonography(DCUS) imaging for evaluation of gastric lesions.METHODS:2D and 3D DCUS imaging with both oral and intravenous administrations of contrast agents was used to assess gastroscopiclly-confirmed gastric lesions in 46 patients with benign and malignant diseases.Initially,liquid-based ultrasound contrast agent(Xinzhang) was given orally at dose of 500-600 mL for conventional ultrasound examination of the gastric lesions,and then a microbubble-based contrast agent(SonoVue) was injected intravenously at dose of 1.2-2.4 mL in bolus fashion to assess the perfusion pattern of the lesions using contrast imaging modes.The parameters derived from time-intensity curves including the arrival time(AT),time to peak(TTP),peak intensity(PI) and enhanced intensity(EI) were measured on the 2D DCUS imaging.3D DCUS of the lesions was acquired to demonstrate the value of this imaging mode.RESULTS:There were 22 cases with benign lesions including chronic gastritis(n = 5),gastric ulcer(n = 9),gastric polyps(n = 3),gastric stromal tumors(n = 5),and 24 cases with malignant lesions including gastric cancer(n = 20),gastric cardia carcinoma(n = 3) and post-operative recurrent gastric cancer(n = 1) in the study.The oral contrast-enhanced ultrasonography(CEUS) imaging of the stomach clearly demonstrated the anatomy of the stomach and morphologic features of gastric lesions.With optimal scanning window and imaging display under oral CEUS,intravenous CEUS clearly showed the perfusion of gastric lesions with various characteristic manifestations.Both 2D and 3D DCUS images clearly demonstrated normal gastric wall as a three-layer structure,from the inside out,hyperechoic mucosa,hypoechoic muscularis and hyperechoic serosa,respectively.There were statistical significant differences of AT(8.68 ± 2.06 vs 10.43 ± 2.75,P = 0.017),PI(34.64 ± 6.63 vs 29.58 ± 8.22,P = 0.023) and EI(29.72 ± 6.69 vs 22.66 ± 7.01,P = 0.001) between malignant lesions and normal gastric wall.However,no differences of AT,PI and EI between benign lesions and normal gastric wall tissue were found.3D DCUS could intuitively display morphological features and vascularities of the lesions with multiplanar and volume views.3D DCUS imaging provided comprehensive information complementary to 2D imaging.The crater or wellhead appearances and feeding vessels as well as distorted nourishing vasculature of gastric carcinoma were better seen with 3D imaging than 2D imaging.CONCLUSION:DCUS imaging can simultaneously display the anatomic and perfusion features of gastric lesions.3D DCUS can provide additional information to 2D DCUS for evaluation of gastric lesions. | Hong Shi Xiu-Hua Yu Xin-Zhang Guo Yuan Guo Hong Zhang Bin Qian Zhang-Rui Wei Li Li Xian-Chen Wang Zi-Xiang Kong | 2012 | World Journal of Gastroenterology2012，18，31： | 36 |
| 10 | Epidemiology of respiratory distress and the illness severity in late preterm or term infants: a prospective multi-center study显示文摘背景呼吸悲痛的严厉与新生的预后被联系。这研究试图近来探索临床的特征,治疗学的干预和短期的结果要求了的 preterm 或术语婴儿呼吸支持,并且比较不同的病严厉评价 tools.Methods 的用法第三级的医院里的七个新生的特别护理单位被招募。从 2008 年 11 月到 2009 年 10 月,在 34 星期的 gestational 出生的出生不满一月的婴儿变老,在 72 小时年龄承认了,为呼吸支持要求连续积极航线压力(CPAP ) 或机械通风被注册。包括人口统计的变量,内在的疾病,复杂并发症,治疗学的干预和短期的结果的临床的数据是镇定的。所有婴儿被在风险新生儿(橡树子) 的尖锐照顾划分成三个组呼吸分数 5, 5-8,和 8 .Results 在学习时期, 503 新生的迟了的 preterm 或学期婴儿期间要求了呼吸支持。吝啬的 gestational 年龄是(36.8 ? 湥牧獯敳 ? 湩 ? 眠吗? | MA Xi'ao-lu XU Xue-feng CHEN Chao YAN Chao-ying LIU Ya-ming LIU Ling XIONG Hong SUN Hui-qing LAI Jian-pu YI Bin SHI Jing-yun DU Li-zhong | 2010 | Chinese Medical Journal2010，，20： | 31 |
| 11 | Morphological study on colonic pathology in ulcerative colitis treated by moxibustion显示文摘AIM To observe the therapeutic effect ofmoxibustion on ulcerative colitis and itsinfluence on the colonic mucosal morphology.METHODS Forty-six patients with ulcerativecolitis were randomly divided into themoxibustion with herbal medicine underneathgroup and the western medicine group.Thirtypatients were treated with the abovemoxibustion and 16 patients with Salicylayefapyridine(SASP).The colonic mucosa of 13patients in the moxibustion group was observedby colonoscopy before and after the treatment.Mucin was also analyzed by H.E and AB-PASstaining.RESULTS Seventeen patients were clinicallycured,12 were improved and 1 unchanged in themoxibustion group.In the control group,5patients were clinically cured,7 improved and 4unchanged.Thirteen patients with active UCwere taken as the subjects for histopathologicanalysis in this study.The colonic mucosallesions were remarkably improved and thecharacteristic of the mucin also changed.Inmost sections,the chronic inflammation ofmucosa was geatly ameliorated(P<0.01).Theinflammatory cell infiltratation much decreased and neutrophils,disapeared in most sections(P<0.001).The goblet cells significantlyincreased(P<0.001);crypt paracrypt abscessor mucosal ulceration was seen(P<0.001).CONCLUSION The rate of cure of ulcerative colitis by moxibustion with herbal medicine beneath is superior to that by SASP. This sort of moxibustion can effectively improve the colonic mucosal lesions and restore the proportion of mucoprotein to near normal. | Huan Gan Wu Li Bin Zhou Da Ren Shi Shi Min Liu Hui Rong Liu Bi Meng Zhang Han Ping Chen Lin Shan Zhang | 2000 | World Journal of Gastroenterology2000，6，6： | 28 |
| 12 | Optical property and spectroscopy studies on the selected lubricating oil in the terahertz range显示文摘The optical property and spectroscopy of selected kinds of lubricating oil are studied based on the terahertz time-domain spectroscopy (THz-TDS) in the spectral range of 0.3-1.6 THz. The samples are classified by their characteristics via the near-infrared spectrum. The experimental results reveal that lubricating oil is more sensitive in the range of terahertz than in the near-infrared,and the specific kinds of lubricating oil can be identified according to their different spectral features in the terahertz range. The THz-TDS technology applied to lubricating oil analysis has potentially significant impact on the petroleum field. | TIAN Lu ZHOU QingLi JIN Bin ZHAO Kun ZHAO SongQing SHI YuLei ZHANG CunLin | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，12： | 25 |
| 13 | Microsurgical treatment of craniopharyngiomas:report of 284 patients显示文摘Background Generally, total surgical removal of craniopharyngioma results in satisfactory outcome with a low recurrence rate, however, the location of the tumor and its adherence to the hypothalamic structures can make the operation difficult. The goal of the present study was to assess the outcome of craniopharyngiomas in 284 patients treated surgically. Methods A total of 284 patients (151 men and 133 women) with craniopharyngioma were treated surgically by our neurosurgeons from January 1996 to March 2006. Among them, 226 (79.6%) patients were adults (15 years of age or older; mean, 35.8±10.6), 58 (20.4%) were children (14 years of age or younger; mean, 9.1±3.8). The diameter of the tumors were 2.0-9.0 cm (mean, 36.54±11.4). The tumors were classified into the superior (23 patients) and inferior ventricular (261) types according to the location of the tumor relative to the third ventricular floor. For the patients with craniopharyngioma of inferior ventricular type, pterional approach was used in 191 (67.3%) patients, subfrontal approach in 17 (6.0%), and translamina terminalis through frontobasal interhemispheric approach in 53 (18.7%). For those with the tumors of superior ventricular type, transcallosal approach into the anterior third ventricle was done in 10 (3.5%) patients, and the lamina terminalis approach in 13 (4.6%). Of the 284 patients, 204 (71.8%) were followed up for 0.5 to 8 years (mean, 2.1±1.8), including 162 patients received total tumor removal, and 37 underwent subtotal or partial removal. Results Total, subtotal and partial removal of the tumors were achieved in 237 (83.5%), 34 (12.0%) and 13 (4.5%) patients, respectively. The pituitary stalk was preserved in 176 (62.0%) patients, severed in 52 (18.3%), and unidentified in 56 (19.7%). Twelve (4.2%) patients died within one month after the surgery. During the follow-up, 23 (14.1%) patients experienced tumor recurrence 1.0-3.5 years (mean, 1.8±1.6) after total tumor removal, and 24 (64.9%) had recurrent tumor 0.25-1.5 years (mean, 0.5±0.4) after subtotal or partial resection. Normal activities of daily living were regained in 63 (80%) patients, independence in 29 (14.2%), and daily life with assistance in 9 (4.4%). Four (2.0%) patients died 0.9-3 years (mean, 1.6±1.4) after discharge from hospital, 3 of them died of hypothalamic deficiency. Conclusions We can protect the hypothalamic structures and its perforating arteries by choosing surgical approaches according to the location of craniopharygioma relative to the third ventricular floor. The mortality, morbidity, and recurrence rate in patients received total resection are lower than those of patients underwent subtotal or partial resections. In addition, preservation of the pituitary stalk is critical when total tumor resection is feasible. | SHI Xiang-en WU Bin ZHOU Zhong-qing FAN Tao ZHANG Yong-li | 2006 | Chinese Medical Journal2006，，19： | 23 |
| 14 | Spinal surgeons' learning curve for lumbar microendoscopic discectomy: a prospective study of our first 50 and latest 10 cases显示文摘背景 Microendoscopic discectomy ( MED )是为腰部的圆盘形成疝从外科允许快速的恢复的最低限度地侵略的操作,但是因为大多数外科医生避免它 curve.We 在针的 surgeons'learning curve.Methods 的阶段评估了腰部的 MED 的有效性和安全的长学习,在很少医院里代替了传统的开的外科从2002年6月接待 MED 到2003年2月的五十个病人各被划分成十的按年代先后的组: A-E.The 控制组 F 是十 | RONG Li-min XIE Pei-gen SHI De-hai DONG Jian-wen LIU Bin FENG Feng CAI Dao-zhang | 2008 | Chinese Medical Journal2008，，21： | 23 |
| 15 | The second natural gas hydrate production test in the South China Sea显示文摘Clayey silt reservoirs bearing natural gas hydrates(NGH)are considered to be the hydrate-bearing reservoirs that boast the highest reserves but tend to be the most difficult to exploit.They are proved to be exploitable by the first NGH production test conducted in the South China Sea in 2017.Based on the understanding of the first production test,the China Geological Survey determined the optimal target NGH reservoirs for production test and conducted a detailed assessment,numerical and experimental simulation,and onshore testing of the reservoirs.After that,it conducted the second offshore NGH production test in 1225 m deep Shenhu Area,South China Sea(also referred to as the second production test)from October 2019 to April 2020.During the second production test,a series of technical challenges of drilling horizontal wells in shallow soft strata in deep sea were met,including wellhead stability,directional drilling of a horizontal well,reservoir stimulation and sand control,and accurate depressurization.As a result,30 days of continuous gas production was achieved,with a cumulative gas production of 86.14×104 m3.Thus,the average daily gas production is 2.87×10^4 m^3,which is 5.57 times as much as that obtained in the first production test.Therefore,both the cumulative gas production and the daily gas production were highly improved compared to the first production test.As indicated by the monitoring results of the second production test,there was no anomaly in methane content in the seafloor,seawater,and atmosphere throughout the whole production test.This successful production test further indicates that safe and effective NGH exploitation is feasible in clayey silt NGH reservoirs.The industrialization of hydrates consists of five stages in general,namely theoretical research and simulation experiments,exploratory production test,experimental production test,productive production test,and commercial production.The second production test serves as an important step from the exploratory production test to experimental production test. | Jian-liang Ye Xu-wen Qin Wen-wei Xie Hai-long Lu Bao-jin Ma Hai-jun Qiu Jin-qiang Liang Jing-an Lu Zeng-gui Kuang Cheng Lu Qian-yong Liang Shi-peng Wei Yan-jiang Yu Chunsheng Liu Bin Li Kai-xiang Shen Hao-xian Shi Qiu-ping Lu Jing Li Bei-bei Kou Gang Song Bo Li He-en Zhang Hong-feng Lu Chao Ma Yi-fei Dong Hang Bian | 2020 | China Geology2020，3，2： | 22 |
| 16 | Quantifying Land Use Change in Zhejiang Coastal Region,China Using Multi-Temporal Landsat TM/ETM+Images显示文摘Landsat Thematic Mapper(TM)and Enhanced Thematic Mapper Plus(ETM+)images in 1985,1986,1993,1994 and 2001 were used to quantify the land use and land cover changes(LUCC)in the Zhejiang coastal region with a stratified unsupervised classification technique in conjunction with visual interpretation and to attempt an identification of the socioeconomic driving forces.In level I an overall accurate classification was achieved using a modified Anderson'sⅠ/Ⅱ/Ⅲ-level classification scheme.The overall accuracy of the land use classification at Anderson level I were 89.7% (1985),91.6%(1993),and 90.4%(2001).The most rapid land use change was a dramatic increase in urban or built-up areas,which quadrupled from 1985 to 2001.Over 90% of this newly expanded built-up area was originally paddy fields or other croplands.In different parts of the Zhejiang coastal region,urban land expansion was spatially uneven.Temporally, land use development did not stabilized,and the two study periods of time(1985-1993 and 1993-2001)had different transition styles.Socioeconomic factors,such as gross domestic product,total population,and financial expenditure,were all highly correlated with the expansion of urban or built-up areas.Based on the degree of urban sprawl and socioeconomic factors,cities and towns were further divided into six subgroups,which may help decision makers improve land use for the region. | DING Han WANG Ren-Chao WU Jia-Ping ZHOU Bin SHI Zhou DING Li-Xia | 2007 | Pedosphere2007，17，6： | 21 |
| 17 | Clinical study of arterial anatomic variations for transradial coronary procedure in Chinese population显示文摘光线的动脉当前是的背景为冠的干预过程认为是一条有用途径。光线的动脉的足够的解剖信息应该在执行 transradial 是有用的冠的过程。关于中国人口的很少数据在这个领域里被获得了。因此,我们试着在 3000 个盒子,光线的动脉和 subclavical 的一件估计的样品评估发生和异常模式,和他们对干预 procedure.Methods 的影响的临床的意义动脉 angiography 在鞘和冠的 angiography (CA ) 的插入以后被执行。包括分支异例,光线的动脉的扭曲和程序的特征的可评估的数据被分析。过程成功被定义为 CA 或没有在这研究改变到另外的 routes.Results ,与起始的光线的动脉途径完成的经皮的冠的干预(一种总线标准), CA 的 1897 个盒子被承担,与一种总线标准相结合的 CA 的 1103 个盒子是 transradial 干预( TRI )的 performed.The 成功率是96.6%( 2899/3000 )。在 44 种情况中的途径被改变到 contralateral 光线的动脉和 57 个盒子与起始的光线的动脉途径由于失败被改变到臂的动脉或大腿骨的动脉。上面的手足动脉的 angiography 在所有情况中被执行。上面的手足动脉的解剖变化在 610 个病人(20.3%)被注意,它包括了光线的动脉(5.0%)的曲折配置,发育不全(2.2%),桡尺骨的循环(1.1%),光线的动脉(7.7%)的反常起源,光线的动脉(1.4%)的狭窄,臂的动脉(0.9%)的一种曲折配置,一锁骨下的动脉(1.9%)的曲折配置, lusoria 锁骨下的动脉(0.1%),和锁骨下的动脉吸藏(0.03%)。在正常人口的程序的成功率比在变化组高(97.6% 对 93.0% , P < 0.001 ) 。另外,除了光线的动脉吸藏的复杂并发症的另外的程序的结果和发生比光线的动脉的解剖变化是的变化 group.Conclusions 也显著地优异普通,在 trans 光线的途径完成重要限制。适当仪器和理解的一些技巧的选择是有用的克服障碍并且有效地减少学习曲线。 | NIE Bin ZHOU Yu-jie LI Guo-zhong SHI Dong-mei WANG Jian-long | 2009 | Chinese Medical Journal2009，，18： | 21 |
| 18 | Incidence and predictors of radial artery spasm during transradial coronary angiography and intervention显示文摘背景光线的动脉痉挛(地岬) 是在 transradial 的最普通的复杂并发症冠的 angiography 和干预。在这研究,我们设计了用汉语在 transradial 过程期间调查地岬的发生,通过多重回归发现独立预言者,并且分析在后续期间的地岬的临床的效果。方法病人安排了收到 transradial 冠的 angiography 和干预连续地被注册。地岬的发生被记录。Univariate 分析被执行发现地岬的影响因素,并且逻辑回归分析被执行发现地岬的独立预言者。病人被要求 1 个月以后为对地岬的发生是的光线的 access.Results 的评价回来(112/1427 )7.8% 在所有病人收到了 transradial 过程。 Univariate 分析显示那幼仔( P=0.038 ),女性( P=0.026 ),光线的动脉的小直径( P < 0.001 ),糖尿病( P=0.026 ),吸烟( P=0.019 ),中等或严重的疼痛在光线的动脉管子期间( P < 0.001 ),失败起初存取尝试( P=0.002 ),大鞘( P=0.004 ),导管的数字(> 3 )( P=0.048 ),快速的基线心率( P=0.032 )和长操作时间( P=0.021 )与地岬被联系。逻辑回归给那女性看了(OR=1.745, 95% CI:1.148-3.846, P=0.024 ) ,小光线的动脉直径(OR=4.028, 95%CI:1.264-12.196, P=0.008 ) ,糖尿病(OR= 2.148, 95%CI:1.579-7.458, P=0.019 ) 并且失败的存取起初尝试(OR=1.468, 95%CI:1.212-2.591, P=0.032 ) 是地岬的独立预言者。后续在(28 慥?? | JIA De-an ZHOU Yu-jie SHI Dong-mei LIU Yu-yang WANG Jian-long LIU Xiao-li WANG Zhi-jian YANG Shi-wei GE Hai-long HU Bin YAN Zhen-xian CHEN Yi GAO Fei | 2010 | Chinese Medical Journal2010，，7： | 21 |
| 19 | Structural insights of phosphorylated into the recognition FUNDC1 by LC3B in mitophagy显示文摘 | Mengqi Lv Chongyuan Wang Fudong Li Junhui Peng Bin Wen Qingguo Gong Yunyu Shi Yajun-Tang | 2017 | Protein & Cell2017，8，1： | 21 |
| 20 | Distributed Fiber Optic Monitoring and Stability Analysis of a Model Slope under Surcharge Loading显示文摘In the discipline of geotechnical engineering, fiber optic sensor based distributed monitoring has played an increasingly important role over the past few decades. Compared with conventional sensors, fiber optic sensors have a variety of exclusive advantages, such as smaller size,higher precision, and better corrosion resistance.These innovative monitoring technologies have been successfully applied for performance monitoring of geo-structures and early warning of potential geohazards around the world. In order to investigate their ability to monitor slope stability problems, a medium-sized model of soil nailed slope has been constructed in laboratory. The fully distributed Brillouin optical time-domain analysis(BOTDA)sensing technology was employed to measure the horizontal strain distributions inside the model slope.During model construction, a specially designed strain sensing fiber was buried in the soil mass.Afterward, the surcharge loading was applied on the slope crest in stages using hydraulic jacks and a reaction frame. During testing, an NBX-6050 BOTDA sensing interrogator was used to collect the fiber optic sensing data. The test results have been analyzed in detail, which shows that the fiber optic sensors can capture the progressive deformation and failure pattern of the model slope. The limit equilibrium analyses were also conducted to obtain the factors of safety of the slope under different surface loadings. It is found that the characteristic maximum strains can reflect the stability of the model slope and an empirical relationship was obtained. This study verified the effectiveness of the distributed BOTDA sensing technology in performance monitoring of slope. | ZHU Hong-Hu SHI Bin ZHANG Jie YAN Jun-Fan ZHANG Cheng-Cheng | 2014 | Journal of Mountain Science2014，11，4： | 20 |
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