|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 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 |
| 2 | Sevoflurane postconditioning protects against myocardial ischemia/reperfusion injury by restoring autophagic flux via an NO-dependent mechanism显示文摘Volatile anesthetics improve postischemic cardiac function and reduce infarction even when administered for only a brief-time at the onset of reperfusion.A recent study showed that sevoflurane postconditioning (SPC)attenuated myocardial reperfusion injury, but the underlying mechanisms remain unclear,in this study,we examined the effects of sevoflurane on nitric oxide (NO)release and autophagic flux during the myocardial ischemia/reperfusion (I/R)injury in rats in vivo and ex vivo.Male rats were subjected to 30 min ischemia and 2 h reperfusion in the presence or absence of sevoflurane (1.0 minimum alveolar concentration)during the first 15 min of reperfusion.We found that SPC significantly improved hemodynamic performance after reperfusion,alleviated postischemic myocardial infarction,reduced nicotinamide adenine dinucleotide content loss,and cytochrome c.release in heart tissues.Furthermore,SPC significantly increased the phosphorylation of endothelial nitric oxide synthase (NOS)and neuronal nitric oxide synthase,and elevated myocardial NOS activity and NO production.All these effects were abolished by treatment with an NOS inhibitor NG-nitro-L-arginine methyl ester (L-NAME,10 mg/kg,i.v.).We also observed myocardial I/R-induced accumulation of autophagosomes in heart tissues,as evidenced by increased ratios of microtubule:associated protein 1 light chain 3 Ⅱ/Ⅰ,upregulation of Beclin 1 and P62,and reduced lysosome-assciated membrane protein-2 expression.SPC significantly attenuated I/R- impaired autophagic flux,which were blocked by L-NAME.Moreover,pretreatment with the autophagic flUX blocker chloroquine (10 mg/kg,i.p.)increased autophagosome accumulation in SPC-treated heart following I/R and blocked SPC-induced cardioprotection.The same results were also observed in a rat model of myocardial I/R injury ex vivo,suggesting that SPC protects rat hearts against myocardial reperfusion injury by restoring I/R-impaired autophagic flux yia an NO-dependent mechanism. | Shi-gang Qiao Ying Sun Bo Sun An Wang Jia Qiu Lei Hong Jian-zhong An Chen Wang Hui-ling Zhang | 2019 | Acta Pharmacologica Sinica2019，40，1： | 21 |
| 3 | Endobronchial ultrasound-guided transbronchial needle aspiration of undiagnosed mediastinal lymphadenopathy显示文摘背景 Endobronchial 指导超声的 transbronchial 针渴望( EBUS-TBNA )能取样由常规 bronchoscopy.It 不能到达的扩大 mediastinal 淋巴节点是一个相对简单、安全的方法在远处看见支气管的 tree.We 从2009年7月描述并且讨论它的起始的申请和我们的 experience.Methods 到2009年12月,有 undiagnosed 的 52 个病人扩大了 mediastinal 淋巴节点在人们的解放军队霍斯皮塔尔克将军与 EBUS-TBNA | TIAN Qing CHEN Liang-an WANG Hui-shuang ZHU Bao-hua TIAN Lei YANG Zhen AN Yang | 2010 | Chinese Medical Journal2010，，16： | 19 |
| 4 | Temporal variations and source apportionment of volatile organic compounds at an urban site in Shijiazhuang, China显示文摘Shijiazhuang,the city with the worst air quality in China,is suffering from severe ozone pollution in summer.As the key precursors of ozone generation,it is necessary to control the Volatile Organic Compounds(VOCs)pollution.To have a better understanding of the pollution status and source contribution,the concentrations of 117 ambient VOCs were analyzed from April to August 2018 in an urban site in Shijiazhuang.Results showed that the monthly average concentration of total VOCs was 66.27 ppbv,in which,the oxygenated VOCs(37.89%),alkanes(33.89%),and halogenated hydrocarbons(13.31%)were the main composite on.Eight major sources were identified using Positive Matrix Factorization modeling with an accurate VOCs emission inventory as inter-complementary methods revealed that the petrochemical industry(26.24%),other industrial sources(15.19%),and traffic source(12.24%)were the major sources for ambient VOCs in Shijiazhuang.The spatial distributions of major industrial activities emissions were identified by using geographic information statistics system,which illustrated the VOCs was mainly from the north and southeast of Shijiazhuang.The inverse trajectory analysis using Hybrid Single-Particle Lagrangian Integrated Trajectory(HYSPLIT)and Potential Source Contribution Function(PSCF)clearly demonstrated the features of pollutant transport to Shijiazhuang.These findings can provide references for local governments regarding control strategies to reduce VOCs emissions. | Yanan Guan Lei Wang Shujuan Wang Yihao Zhang Jieying Xiao Xiaoli Wang Erhong Duan Li'an Hou | 2020 | Journal of Environmental Sciences2020，32，11： | 19 |
| 5 | Evaluation of liver functional reserve by combining D-sorbitol clearance rate and CT measured liver volume显示文摘AIM: Our research attempted to evaluate the overall functional reserve of cirrhotic liver by combination of hepatic functional blood flow, liver volume, and ChildPugh′s classification, and to discuss its value of clinical application.METHODS: Ninety two patients with portal hypertension due to hepatic cirrhosis were investigated. All had a historyof haematemesis and hematochezia, esophageal and gastric fundus varices, splenomegaly and hypersplenia.A 2-year follow-up was routinely performed and no one was lost. Twenty two healthy volunteers were used as control group. Blood and urine samples were collected 4times before and after intravenous D-sorbitol infusion.The hepatic clearance (CLH) of D-sorbitol was then calculated according to enzymatic spectrophotometric method while the total blood flow (QToTAL) and intrahepatic shunt (RINs) were detected by multicolor Doppler ultrasound, and the liver volume was measured by spiral CT. Data were estimated by t-test, variance calculation and chi-squared test. The relationships between all these parameters and different groups were investigated according to Child-Pugh classification and postoperative complications respectively.RESULTS: Steady blood concentration was achieved 120 mins after D-sorbitol intravenous infusion, which was (0.358±0.064) mmoⅠ@L-1 in cirrhotic group and (0.189±0.05)mmol@L-1 in control group (P<0.01). CLH=(812.7±112.4) ml@min-1,QTOTAL=(1280.6±131.4) ml@min-1, and RINS=(36.54±10.65)%in cirrhotic group and CLH=(1248.3±210.5) ml.min-1, QTOTAL=(1362.4-±126.9) ml@min-1, and RINS=(8.37±3.32) % in control group (P<0.01). The liver volume of cirrhotic group was 1057±249 cm3, 851±148 cm3 and 663±77 cm3 in Child A, B and C group respectively with significant difference (P<0.001).The average volume of cirrhotic liver in Child B, C group was significantly reduced in comparison with that in control group (P<0.001). The patient, whose liver volume decreased by 40 % with the CLH below 600 ml@min-1, would have a higher incidence of postoperative complications. There was no strict correspondent relationship between CLH, liver volume and Child-Pugh′s classification.CONCLUSION: The hepatic clearance of D-sorbitol, CT measured liver volume can be reliably used for the evaluation of hepatic functional blood flow and liver metabolic volume. Combined with the Child-Pugh′s classification, it could be very useful for further understanding the liver functional reserve, therefore help determine reasonable therapeutic plan, choose surgical procedures and operating time. | Yi-Ming Li Fan Lv Xin Xu Hong Ji Wen-Tao Gao Tuan-Jie Lei Gui-Bing Ren Zhi-Lan Bai Qiang Li General Surgery Department,the 2~(nd)Affiliated Hospital of Xi’an Jiaotong University,Xi’an 710004,ShaanXi Province,China | 2003 | World Journal of Gastroenterology2003，9，9： | 16 |
| 6 | Growth induction of hepatic stimulator substance in hepatocytes through its regulation on EGF receptors显示文摘The cytosolic liver-specific growth factor-hepatic stimulator substance (HSS) has been shown to be able to amplify the rat hepatocyte proliferation responded to EGF. In order to get more insight into the mechanism, the regulatory effect of HSS on EGF-receptor(EGF-R) and the receptor phosphorylation at molecular level was studied. HSS partially purified from weanling rat liver was given to cultured hepatocytes and its influence on EGF-R specific binding and internalization as well as mRNA expression were investigated. The results showed that preincubation of hepatocytes with HSS could lead to an increase in [125I]-EGF binding to its receptors and inhibit EGFinduced receptor down-regulation. Furthermore, the overexpression of EGF-R mRNA stimulated by HSS was seen during 2-12 h after the incubation. Additionally, it was demonstrated with human hepatoma sMMC-7721 cells in Western blot that the EGF-R expression and the receptor autophosphorylation were increased with dose/timedependency after HSS treatment. These results strongly suggest that the mechanism of HSS action on hepatocyte growth might be related to its modulation on EGF-R and receptor-mediated signaling transduction. | AN WEI XIAO JUN LIU TIAN GUANG LEI JIE DAI GUO GUANG DU(Department of Cell Biology, Capital University of Medical Sciences, Beijing 100054, China) | 1999 | Cell Research1999，9，1： | 13 |
| 7 | A cyclic nucleotide-gated channel mediates cytoplasmic calcium elevation and disease resistance in rice显示文摘The transient elevation of cytoplasmic calcium is essential for pathogen-associated molecular pattern(PAMP)-triggered immunity(PTI).However,the calcium channels responsible for this process have remained unknown.Here,we show that rice CDSI(CELL DEATH and SUSCEPTIBLE to BLAST 1)encoding OsCNGC9;a cyclic nucleotide-gated channel protein,positively regulates the resistance to rice blast disease.We show that OsCNGC9 mediates PAMP-induced Ca2+influx and that this event is critical for PAMPs-triggered ROS burst and induction of PTI-related defense gene expression.We further show that a PTI related receptor-lih cytoplasmic kinase OsRLCK185 physically interacts with and phosphorylates OsCNGC9 to activate its channel activity.Our results suggest a signaling cascade linking pattern recognition to calcium channel activation,which is required for initiation of PTI and disease resistance in rice. | Jiachang Wang Xi Liu An Zhang Yulong Ren Fuqing Wu Gang Wang Yang Xu Cailin Lei Shanshan Zhu Tian Pan Yongfei Wang Huan Zhang Fan Wang Yan-Qiu Tan Yupeng Wang Xin Jin Sheng Luo Chunlei Zhou Xiao Zhang Jinling Liu Shuai Wang Lingzhi Meng Yihua Wang Xi Chen Qibing Lin Xin Zhang Xiuping Guo Zhijun Cheng Jiulin Wang Yunlu Tian Shijia Liu Ling Jiang Chuanyin Wu Ertao Wang Jian-Min Zhou Yong-Fei Wang Haiyang Wang Jianmin Wan | 2019 | Cell Research2019，29，10： | 13 |
| 8 | Progress of applied research on TiO_2 photocatalysis-membrane separation coupling technology in water and wastewater treatments显示文摘Photocatalysis-membrane separation coupling technology has been a heavily researched area in water and wastewater treatment during recent years. The membrane separation process allows the photocatalyst to be easily separated, recovered and reused. More significantly, the membrane is efficient to maintain high flux of membranes as the photocatalyst can reduce the membrane fouling problem which is a hindrance in the development of membrane process. Moreover, some synergistic effects can also be produced, and thus the efficiency of water treatment is enhanced greatly. A comprehensive review of photocatalysis-membrane separation coupling technology is conducted with an insight into its configurations, theories involved, characteristics, and factors that influ-ence the coupling technology. In view of the existing problems, the prospects for future development are also proposed. | XIAO YuTang XU ShuangShuang LI ZhiHua AN XiaoHong ZHOU Lei ZHANG YongLai FU Q. Shiang | 2010 | Chinese Science Bulletin2010，55，14： | 13 |
| 9 | Isolation and characterization of Zika virus imported to China using C6/36 mosquito cells显示文摘Dear Editor,Zika virus(ZIKV)is a mosquito-borne flavivirus that usually causes asymptomatic infections or mild illness in humans.However,the unprecedented epidemics of ZIKV in Latin America since early 2015 have made this flavivirus an international health risk(Liu and Zhang,2016).In particular,the potential association of ZIKV infection with the remarkable increase in the number | Chenglin Deng Siqing Liu Qiuyan Zhang Mingyue Xu Honglei Zhang Dayong Gu Lei Shi Jian'an He Gengfu Xiao Bo Zhang | 2016 | Virologica Sinica2016，31，2： | 12 |
| 10 | Effect of magma intrusion on the occurrence of coal gas in the Wolonghu coalfield显示文摘Chemical analysis, methane isothermal adsorption studies, and mercury porosimetry were performed on ten samples taken from the magma intrusion boundary in the Wolonghu coalfield. The physico-chemical properties of coals from the magma intrusion region are compared to those from the normal regions. The results show that the volatile content (Vad), the limiting adsorption constant (a), and the initial methane diffusion rate of samples from the magma intrusion region are generally smaller than those values from samples from the normal region. The number three coal sample from the magma intrusion region has a large vitrinite reflectance, well developed macropores, a small surface area, and weak methane adsorp- tion capacity. The number ten coal sample from the normal region has a small vitrinite reflectance, well developed micropores, a large surface area, and a strong methane adsorption capacity. The maceral of the coal samples from the magma intrusion region and the normal region are similar. The coal in the area near the magma intrusion boundary is rich in methane and is an area where coal and gas outbursts often occur. | Jiang Jingyu Cheng Yuanping Wang Lei An Fenghua Jiang Haina | 2011 | Mining Science and Technology2011，21，5： | 11 |
| 11 | Potential of Pteris vittata L. for phytoremediation of sites co-contaminated with cadmium and arsenic: The tolerance and accumulation显示文摘领域调查和温室实验被进行学习 Pteris vittata L 的忍耐。(中国刹车) 到镉(Cd ) 和它为重新调停的可行性,地点与 Cd 和砷共同污染(作为) 。结果显示出那 P。vittata 能在与 Cd 的 80 mg/kg 刺并且容忍的壶土壤幸存象全部的 Cd 的 301 mg/kg 和 diethyltriaminepenta 醋酸(DTPA ) 的 26.8 mg/kg 一样大在地条件下面的可引出的 Cd。在复叶的 Cd 的最高的集中在这个领域里是在 920 mg As/kg 和 98.6 mg Cd/kg 的全部的土壤集中下面的 186 mg/kg,而就在温室下面的 2.6 mg/kg 调节。P 的生态型。vittata 在 Cd 的忍耐和累积被区分,并且他们中的一些不能仅仅高容忍土壤 Cd 的集中,而且在他们的复叶的 Cd 的积累的高集中。由 P 的砷举起和交通。vittata 没在底层被禁止(≤ 20 mg/kg ) Cd 增加。没有 Cd 的增加,比作处理,集中被 103.8% 在 20 mg Cd/kg 增加的复叶,与 6434 mg/kg 的高水平。结果建议了 P 的 Cd 容忍的生态型。是有效地提取的 vittata 和从这个地点的 Cd 与 Cd 并且作为共同污染,并且可能习惯于重新调停并且重新生长这类地点。 | XIAO Xiyuan CHEN Tongbin AN Zhizhuang LEI Mei HUANG Zechun LIAO Xiaoyong LIU Yingru | 2008 | Journal of Environmental Sciences2008，20，1： | 11 |
| 12 | Recent progress on the recycling technology of Li-ion batteries显示文摘Lithium-ion batteries(LIBs)have been widely applied in portable electronic devices and electric vehicles.With the booming of the respective markets,a huge quantity of spent LIBs that typically use either LiFePO_(4) or Li N_(x)Co_(y)Mn_(z)O_(2) cathode materials will be produced in the very near future,imposing significant pressure for the development of suitable disposal/recycling technologies,in terms of both environmental protection and resource reclaiming.In this review,we firstly do a comprehensive summary of the-state-of-art technologies to recycle Li N_(x)Co_(y)Mn_(z)O_(2) and LiFePO_(4)-based LIBs,in the aspects of pretreatment,hydrometallurgical recycling,and direct regeneration of the cathode materials.This closed-loop strategy for cycling cathode materials has been regarded as an ideal approach considering its economic benefit and environmental friendliness.Afterward,as for the exhausted anode materials,we focus on the utilization of exhausted anode materials to obtain other functional materials,such as graphene.Finally,the existing challenges in recycling the LiFePO_(4) and Li N_(x)Co_(y)Mn_(z)O_(2) cathodes and graphite anodes for industrial-scale application are discussed in detail;and the possible strategies for these issues are proposed.We expect this review can provide a roadmap towards better technologies for recycling LIBs,shed light on the future development of novel battery recycling technologies to promote the environmental benignity and economic viability of the battery industry and pave way for the large-scale application of LIBs in industrial fields in the near future. | Yuqing Wang Ning An Lei Wen Lei Wang Xiaotong Jiang Feng Hou Yuxin Yin Ji Liang | 2021 | Journal of Energy Chemistry2021，30，4： | 10 |
| 13 | Treatment of nutcracker syndrome with spermatic vein ligation and iliac vein anastomosis:Case report of three cases显示文摘Three patients with nutcracker syndrome(NCS) were enrolled in the study.Their clinical symptoms mainly included proteinuria and serious varicocele.Color Doppler ultrasound and computed tomography showed that the patients had constricted abdominal aortas,reduced superior mesenteric artery angles,and thinned left renal veins.Patients then underwent left spermatic vein ligation and iliac vein anastomosis.They were checked tliree months after their operation,and results showed that their sperms were improved and their proteinuria disappeared. The color Doppler ultrasound showed new cycle pathways.NCS clinical manifestations are complicated,and need combination diagnosis of symptoms and auxiliary examination to detennine surgical indications.Ligation of spermatic vein and vein anastomosis can be used to treat NCS. | Xiao-Yong Gong Wei Zheng Hong Du Yi Lei Ya-Hui Xue Chao-Hui Xue Xian-Chao An Gang Zheng | 2012 | Asian Pacific Journal of Tropical Medicine2012，5，11： | 10 |
| 14 | Large eddy simulation of flow in a street canyon with tree planting under various atmospheric instability conditions显示文摘In this work, a large eddy simulation (LES) model, which includes momentum and heat source (or sink) inside the tree planting layer, is proposed for the simulation of flow in a street canyon with tree planting. Vegetation canopy layer simulation shows that this model can be used to simulate the velocity distribution and temperature variation inside the canopy layer. Effects of atmospheric instability on flow and pollutant distribution in a street canyon with tree planting of an aspect ratio of 0.5 are studied. Results show that compared with the canyon with no tree planting (or the exposed street canyon), the canyon with tree planting shows a reduced wind circulation and pollutant exchange rate (PER) at the top layer of the street canyon, which induces the increase in the pollutant concentrations near road surface, leeward wall and windward wall. When street canyon atmosphere is under a strongly unstable condition, wind velocity decreases while pollutant concentration is increased in the areas near the street canyon top, road surface, leeward and windward walls, compared with the wind velocity in the street canyon with the neutral stratification. When street canyon atmosphere is under a weakly unstable condition, wind velocity weakens near the street canyon top and windward wall, but strengthens near the road surface and leeward wall, and pollutant concentration is decreased near the leeward and windward walls and is increased between the two rows of trees. When the street canyon atmosphere is under an unstable condition, PER is lower than that under the neutral stratification. | GU ZhaoLin1, ZHANG YunWei2 & LEI KangBin3 1 School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China 1 School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China 3 RIKEN Institute, Wako, Saitama, 351-0198, Japan | 2010 | Science China(Technological Sciences)2010，53，7： | 10 |
| 15 | A Geometric Understanding of Deep Learning显示文摘This work introduces an optimal transportation(OT)view of generative adversarial networks(GANs).Natural datasets have intrinsic patterns,which can be summarized as the manifold distribution principle:the distribution of a class of data is close to a low-dimensional manifold.GANs mainly accomplish two tasks:manifold learning and probability distribution transformation.The latter can be carried out using the classical OT method.From the OT perspective,the generator computes the OT map,while the discriminator computes the Wasserstein distance between the generated data distribution and the real data distribution;both can be reduced to a convex geometric optimization process.Furthermore,OT theory discovers the intrinsic collaborative-instead of competitive-relation between the generator and the discriminator,and the fundamental reason for mode collapse.We also propose a novel generative model,which uses an autoencoder(AE)for manifold learning and OT map for probability distribution transformation.This AE–OT model improves the theoretical rigor and transparency,as well as the computational stability and efficiency;in particular,it eliminates the mode collapse.The experimental results validate our hypothesis,and demonstrate the advantages of our proposed model. | Na Lei Dongsheng An Yang Guo Kehua Su Shixia Liu Zhongxuan Luo Shing-Tung Yau Xianfeng Gu | 2020 | Engineering2020，6，3： | 10 |
| 16 | High quality reference genome of drumstick tree(Moringa oleifera Lam.), a potential perennial crop显示文摘The drumstick tree(Moringa oleifera Lam.) is a perennial crop that has gained popularity in certain developing countries for its high-nutrition content and adaptability to arid and semi-arid environments. Here we report a high-quality draft genome sequence of M. oleifera. This assembly represents 91.78% of the estimated genome size and contains 19,465 protein-coding genes. Comparative genomic analysis between M. oleifera and related woody plant genomes helps clarify the general evolution of this species, while the identification of several species-specific gene families and positively selected genes in M. oleifera may help identify genes related to M. oleifera's high protein content, fast-growth, heat and stress tolerance. This reference genome greatly extends the basic research on M. oleifera, and may further promote applying genomics to enhanced breeding and improvement of M. oleifera. | TIAN Yang ZENG Yan ZHANG Jing YANG Cheng Guang YAN Liang WANG XuanJun SHI ChongYing XIE Jing DAI TianYi PENG Lei ZENG HUAN Yu XU An Ni HUANG YeWei ZHANG JiaJin MA Xiao DONG Yang HAO ShuMei SHENG Jun | 2015 | Science China(Life Sciences)2015，58，7： | 10 |
| 17 | RESEARCH OF THE DYNAMIC CHARACTERISTICS ON A NEW HYDRAULIC SYSTEM OF ELECTRO-HYDRAULIC HAMMER显示文摘A new typed hydraulic system of electro hydraulic hammer is researched and developed By means of power bond graphs the modeling and simulation to the dynamic characteristics of the new hydraulic system are performed The experimental research which is emphasized on the blowing stroke is also performed It is proved from the result of simulation and experiment that this new hydraulic system possesses such advantages as simplification of structure,flexibleness of operation and reliability of working Especially it possesses better dynamic | Li Yongtang Lei Bufang Department of Mechanical Engineering,Taiyuan Heavy Machinery Institute Shi Enxiu Xi’an University of Science and Technology | 2001 | Chinese Journal of Mechanical Engineering2001，14，2： | 9 |
| 18 | Arsenic uptake and transport of Pteris vittata L.as influenced by phosphate and inorganic arsenic species under sand culture显示文摘In order to understand the similarity or difference of inorganic As species uptake and transport related to phosphorus in As-hyperaccumulator,uptake and transport of arsenate(As(V))and arsenite(As(III))were studied using Pteris vittata L.under sandculture.Higher concentrations of phosphate were found to inhibit accumulation of arsenate and arsenite in the fronds of P.vittata.The reduction in As accumulation was greater in old fronds than in young fronds,and relatively weak in root and rhizome.Moderateincreases,from 0.05 to 0.3 mmol/L,in phosphate reduced uptake of As(III)more than As(V),while the reverse was observed at highconcentrations of phosphate(1.0 mmol/L).Phosphate apparently reduced As transport and the proportion of As accumulated in frondsof P.vittata when As was supplied as As(V).It may in part be due to competition between phosphorus and As(V)during transport.Incontrast,phosphate had a much smaller effect on As transport when the As was supplied as As(III).Therefore,the results from presentexperiments indicates that a higher concentration of phosphate suppressed As accumulation and transport in P.vittata,especially inthe fronds,when exposed to As(V);but the suppression of phosphate to As transport may be insignificant when P.vittata exposed toAs(III)under sand culture conditions.The finding will help to understand the interaction of P and As during their uptake process in P.vittata. | HUANG Ze-chun AN Zhi-zhuang CHEN Tong-bin LEI Mei XIAO Xi-yuan LIAO Xiao-yong | 2007 | Journal of Environmental Sciences2007，19，6： | 9 |
| 19 | Time-frequency characteristics based motion estimation and imaging for high speed spinning targets via narrowband waveforms显示文摘This paper focuses on the motion parameters estimation and inversed synthetic aperture radar (ISAR) imaging for the high-speed spinning targets via the time-frequency characteristics. Assuming that the translational motion is compensated with the available motion compensation techniques, then the residual part of translational motion and the spinning motion are estimated with high precision based on the timefrequency characteristics. Combining with the procedure of the motion estimation, a novel coherent timefrequency spectrum intensity redistribution method, coherent single range Doppler interferometry (CSRDI), is proposed, which provides higher resolution and sustain lower signal to noise rate (SNR) than the current approach. Numerical simulation confirms the validity and high precision of the proposed approaches. | ZHANG Lei , LI YaChao, LIU Yan, XING MengDao & BAO Zheng National Lab for Radar Signal Processing, Xidian University, Xi’an 710071, China | 2010 | Science China(Information Sciences)2010，53，8： | 9 |
| 20 | Cutting-balloon angioplasty before drug-eluting stent implantation for the treatment of severely calcified coronary lesions显示文摘BackgroundSeverely 钙化的冠的损害对汽球 angioplasty 糟糕作出回应,导致不完全、不均匀的 stent 扩大。因此,在 drug-eluting stent (DES ) 以前的足够的匾修正培植是为钙化的损害治疗的钥匙。这研究是评估为严重地钙化的冠的 lesions.MethodsNinety 切汽球 angioplasty 的安全和功效 -- 有严重地钙化的损害的二个连续病人(定义为钙弧 ≥180 °钙长度比率 ≥0.5 ) 在 DES 培植随机基于汽球类型被划分成二个组以前,与汽球膨胀对待:在常规汽球 angioplasty (BA ) 的 45 个病人组织,在切的汽球 angioplasty (CB ) 的 47 个病人组织。在 BA 组的七个盒子令人满意地没完成膨胀并且被变成 CB 组。 Intravascular 超声( IVUS )在汽球膨胀前并且在 stent 培植以后被执行获得质、量的损害特征并且评估 stent ,包括最小的腔代表性的区域( CSA ),钙化的弧和长度,最小的 stent CSA , stent 并置, stent 对称, stent 扩大,容器解剖,并且分叉容器监狱。在里面医院, 1 月、 6 月的主要不利心脏的事件(向) 是 reported.ResultsThere 不是在在二个组之间的临床的特征的统计差别,包括钙弧(222.2 °±22.2 °对 235.0 °±22.1 °, P = 0.570 ) ,钙长度比率(0.67 ±0.06 对 0.77 ±0.05, P = 0.130 ) ,并且在一种总线标准前的最小的腔 CSA (2.59 ±0.08 公里 2 对 2.52 ±0.08 公里 2, P = 0.550 ) 。在 stent 培植以后,最后的最小的 stent CSA (6.26 ±0.40 公里 2 对 5.03 ±0.33 公里 2 ;P = 0.031 ) 并且尖锐的腔获得(3.74 ±0.38 公里 2 对 2.44 ±0.29 公里 2, P = 0.015 ) 比 BA 组的在 CB 组是显著地更大的。没有统计上在在二个组之间的 stent 扩大, stent 对称,不完全的 stent 并置,容器解剖和分支容器监狱的差别。在在严重地钙化的损害的 DES 培植看起来是包括显著地更大的最后的 stent CSA 和更大的尖锐的腔获得的更多的功效以前, 30 天、 6 月的向率也不是 different.ConclusionsCutting 汽球 angioplasty,没有增加在操作和 MACE 率在期间的复杂并发症 6 月。 | Zhe TANG Jing BAI Shao-Ping SU Yu WANG Mo-Han LIU Qi-Cai BAI Jin-Wen TIAN Qiao XUE Lei GAO Chun-Xiu AN Xiao-Juan LIU | 2014 | Journal of Geriatric Cardiology2014，11，1： | 9 |
您所在的机构暂未开通此部分的功能，请联系管理员