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| 1 | Liver cancer incidence and mortality in China: Temporal trends and projections to 2030显示文摘Objective: Liver cancer is one of the most common cancers and major cause of cancer deaths in China,which accounts for over 50% of new cases and deaths worldwide.The systematic liver cancer statistics including of projection through 2030 could provide valuable information for prevention and control strategies in China,and experience for other countries.Methods: The burden of liver cancer in China in 2014 was estimated using 339 cancer registries' data selected from Chinese National Cancer Center(NCC).Incident cases of 22 cancer registries were applied for temporal trends from 2000 to 2014.The burden of liver cancer through 2030 was projected using age-period-cohort model.Results: About 364,800 new cases of liver cancer(268,900 males and 95,900 females) occurred in China,and about 318,800 liver cancer deaths(233,500 males and 85,300 females) in 2014.Western regions of China had the highest incidence and mortality rates.Incidence and mortality rates decreased by about 2.3% and 2.6% per year during the period of 2000-2014,respectively,and would decrease by more than 44% between 2014 and 2030 in China.The young generation,particularly for those aged under 40 years,showed a faster down trend.Conclusions: Based on the analysis,incidence and mortality rates of liver cancer are expected to decrease through 2030,but the burden of liver cancer is still serious in China,especially in rural and western areas.Most cases of liver cancer in China can be prevented through vaccination and more prevention efforts should be focused on high risk groups. | Rongshou Zheng Chunfeng Qu Siwei Zhang Hongmei Zeng Kexin Sun Xiuying Gu Changfa Xia Zhixun Yang He Li Wenqiang Wei Wanqing Chen Jie He | 2018 | Chinese Journal of Cancer Research2018,30,6: | 132 |
| 2 | Magnetic recording of the Cenozoic oceanic crustal accretion and evolution of the South China Sea basin显示文摘我们考察并且讨论一些在华南海(SCS ) 在磁性的数据上做的最近的科学调查结果。磁性的异例在中生代和新生代上忍受极其富有的信息构造进化。从磁性的异例计算的分析信号振幅很精确揭示的 3D 二上的中生代沉积序列的寡妇分布结合大陆人边缘,和他们也在在 SCS 海洋的外壳以内描绘以后阶段的 magmatism 和构造转变和带状配列被发现很有效。通过综合分析磁性,严肃和思考地震数据,我们在华南海大陆人边缘附近定义大陆海洋边界(圆块) ,并且发现圆块与一个转变地区与一致很好从对否定免费空气的严肃异例主要积极。COB 的这精确构画出为更好跟踪海洋的外壳导致的磁性的异例是批评的。几何上复杂的圆块和内部磁性的带状配列要求一个阵发性的洞模型,以及一个变换差错的介绍(这里作为 Zhongnan 差错制造了)在东方和西南亚盆之间在东方和西南亚盆以内,磁性的异例旁边地是相当连续的,在这些亚盆以内显示大变换差错的不存在。我们提高浅玄武岩的层经由一个通带过滤器引起的磁性的异例,并且认识到北大陆人边缘附近的多半最旧的磁性的异例根据磁性的时间规模 CK95 是 C12。在南部的大陆人边缘附近,磁性的异例是不太可认识的,异例 C12 看起来失踪。这些差别证明关于散布中心的寡妇的一种不均匀的开始式样,和北部分看起来比到南方有稍微更快传播的率。磁性的异例 C8 (M1 和 M2, 26 妈) 在海洋的盆以内代表重要磁性的边界,并且可能与在散布率和 magmatic 紧张的变化有关。为一条以前建议的山脉的磁性的证据在异例 C7 不是清楚的以后,跳。西南亚盆的年龄还得进一步被检验,最有利地与深拖引磁性的调查并且海洋钻。我们的磁性光谱最浅的居里削尖的学习表演在西南的亚盆的东方部分附近被定位,而在东方亚盆居里以内深度对传播的寡妇的北方更小,比到南方集中。居里深度的这个模式对地区性的热流动大小和以后阶段的暴烈的海底山分布一致,并且我们因此推想居里深度变化仔细与以后阶段的 magmatism,而非与外壳的年龄被联系。尽管在北大陆海洋转变地区(简易窄床) 附近定位的磁性的异例是相对安静的,自从概念上它与一个海洋的磁性的安静地区显著地不同,这个区域不是一个典型磁性的安静地区。相对安静的磁性的异例看起来在居里等温线与 shallowing 被联系并且在磁性的层,而是我们的全面观察变瘦建议保存得很好的厚中生代沉积岩石是为有磁力地安静的地区的主要原因。各种各样的低通行证的过滤水兵和在空中的磁性的异例和卫星的高类似磁性的异例清楚地证实那更深磁性的来源(在更低的外壳中并且最高披风) 有贡献到长波长的表面在区域的磁性的异例,当已经推断了从有磁力地 inversed 居里深度。近海华南磁性的异例(SCMA ) 在低通行证的过滤水兵和在空中的磁性的异例和卫星上变得更突出磁性的异例,在它下面显示很深深地埋葬的磁性的来源。 | LI ChunFeng SONG TaoRan | 2012 | Chinese Science Bulletin2012,57,24: | 40 |
| 3 | The recommendations of Chinese Parkinson’s disease and movement disorder society consensus on therapeutic management of Parkinson’s disease显示文摘Background:Parkinson’s disease(PD)is a chronic,progressive and debilitating disease,which affects over 2.5 million people in China.PD is characterized clinically by resting tremor,muscular rigidity,bradykinesia and postural instability.As the disease progresses,additional complications can arise such as non-motor and neurobehavioral symptoms.Pharmacological treatment and surgical intervention for PD have been implemented in China.Until 10 years ago,there was lack of standardization for the management of PD in different regions and among different physicians,leading to different treatment levels in different regions and different physicians.Since then,the Chinese Parkinson’s Disease and Movement Disorder Society have published three versions of guidelines for the management of PD in China,in 2006,2009 and 2014,respectively.Correspondingly,the overall level of treatment for PD in China improved.Objectives:To update the treatment guidelines based on current foreign and domestic practice guidelines and clinical evidence,and to improve the treatment options available to physicians in the management of PD.Summary:A variety of treatment recommendations in the treatment guidelines have been proposed,including physical activity and disease-modifying medication,which should be initiated at the early-stage of the disease.The principles of dosage titration should be followed to avoid acute adverse reactions to the drugs,to achieve a satisfactory clinical effect with a low dose and to reduce the incidence of long-term motor complications.Moreover,different treatment strategies should be considered at different stages of the disease.Importantly,treatment guidelines and personalized treatments should be valued equally.A set of treatment recommendations has been developed to assist physicians to improve and optimize clinical outcomes for patients with PD in China. | Shengdi Chen Piu Chan Shenggang Sun Haibo Chen Baorong Zhang Weidong Le Chunfeng Liu Guoguang Peng Beisha Tang Lijuan Wang Yan Cheng Ming Shao Zhenguo Liu Zhenfu Wang Xiaochun Chen Mingwei Wang Xinhua Wan Huifang Shang Yiming Liu Pingyi Xu Jian Wang Tao Feng Xianwen Chen Xingyue Hu Anmu Xie Qin Xiao | 2016 | Translational Neurodegeneration2016,5,1: | 23 |
| 4 | Deep crustal structures of eastern China and adjacent seas revealed by magnetic data显示文摘Through reduction to the North Pole and upward continuation of the total field magnetic anomalies, we analyze magnetic patterns and spatial distributions of different tectonic blocks and crustal faults in eastern China and adjacent seas. Depths to the Curie isotherms are further estimated from radially averaged amplitude spectra of magnetic data reduced to the pole. Data reductions effectively enhance boundaries of regional tectonic belts, such as the Dabie ultra-high metamorphic belt, the Tanlu Fault, and the Diaoyudao Uplift. Curie depths are estimated at between 19.6 and 48.9 km, with a mean of 31.7 km. The Subei Basin and the south Yellow Sea Basin in the lower Yangtze block show relatively deep Curie isotherms, up to about 35 km in depth, whereas in the surrounding areas Curie depths are averaged at about 25 km. This implies that the lower Yangtze Block has experienced a unique tectonic evolution and/or has unique basement lithology and structures. From a regional perspective, sedimentary basins, such as the Subei Basin, the south Yellow Sea Basin, and the East China Sea Basin, normally show deeper Curie isotherms than surrounding uplifts such as the Diaoyudao Uplift and the Zhemin Uplifts. Curie isotherms also upwell significantly in volcanically active areas such as the Ryukyu Arc and the Cheju Island, confirming strong magmatic and geothermal activities at depth. | LI ChunFeng CHEN Bing ZHOU ZuYi | 2009 | Science China Earth Sciences2009,52,7: | 21 |
| 5 | Trend analysis of sediment grain size and sedimentary process in the central South Yellow Sea显示文摘With the method of trend analysis of sediment grain size, the sediment transport trend of the fine-grained sediments area in the central South Yellow Sea was studied. The results demonstrated that there is a sedimentation center around the point of 123.4° E, 35.1°N, and the sediments outside the center are transported to it. The patterns of sediment transportation and deposition in the Yellow Sea should be controlled by cyclonic circulation (including the Yellow Sea Cold Water Mass) and cold water gyre. The study also showed that the method of trend analysis of sediment grain size has prospective utilization in the fine-grained sediment deposited area on large-scale continental shelf. | SHI Xuefa CHEN Chunfeng LIU Yanguang REN Hong WANG Huiyan | 2002 | Chinese Science Bulletin2002,47,14: | 17 |
| 6 | L-3-n-butylphthalide protects against vascular dementia via activation of the Akt kinase pathway显示文摘As a neuroprotective drug for the treatment of ischemic stroke, 3-n-butylphthalide, a celery seed extract, has been approved by the State Food and Drug Administration of China as a clinical therapeutic drug for ischemic stroke patients. L-3-n-butylphthalide possesses significant efficacy in the treatment of acute ischemic stroke. The activated Akt kinase pathway can prevent the death of nerve cells and exhibit neuroprotective effects in the brain after stroke. This study provides the hypothesis that l-3-n-butylphthalide has a certain therapeutic effect on vascular dementia, and its mechanism depends on the activation of the Akt kinase pathway. A vascular dementia mouse model was established by cerebral repetitive ischemia/reperfusion, and intragastrically administered l-3-n-butylphthalide daily for 28 consecutive days after ischemia/reperfusion, or 7 consecutive days before ischemia/reperfusion. The Morris water maze test showed significant impairment of spatial learning and memory at 4 weeks after operation, but intragastric administration of l-3-n-butylphthalide, especially pretreatment with l-3-n-butylphthalide, significantly reversed these changes. Thionine staining and western blot analylsis showed that preventive and therapeutic application of l-3-n-butylphthalide can reduce loss of pyramidal neurons in the hippocampal CA1 region and alleviate nerve damage in mice with vascular demen-tia. In addition, phosphorylated Akt expression in hippocampal tissue increased significantly after l-3-n-butylphthalide treatment. Experimental findings demonstrate that l-3-n-butylphthalide has preventive and therapeutic effects on vascular dementia, and its mechanism may be mediated by upregulation of phosphorylated Akt in the hippocampus. | Yaping Huai Yanhong Dong Jing Xu Nan Meng Chunfeng Song Wenbin Li Peiyuan Lv | 2013 | Neural Regeneration Research2013,8,19: | 17 |
| 7 | Autophagy in Atherosclerosis: A Phenomenon Found in Human Carotid Atherosclerotic Plaques显示文摘 | Huihui Liu Yongjun Gag Tong Tong Jijun Shi Yanlin Zhang Yaping Yang Chunfeng Liu | 2015 | Chinese Medical Journal2015,,1: | 16 |
| 8 | Therapeutic effect in patients with coronary heart disease based on information analysis from Traditional Chinese Medicine four diagnostic methods显示文摘OBJECTIVE:To study information gained by Traditional Chinese Medicine(TCM)four diagnostic methods and characteristics of syndrome development before and after treatment in patients with coronary heart disease,and to probe into assessment indexes of therapeutic effects with distinctive TCM features.METHODS:Information from the four diagnostic methods before and after treatment in 100 patients with coronary heart disease was collected using the TCM interrogation scale,a pulse condition instrument,a tongue-face diagnosis instrument,anda voice diagnosis information collection system.Changes in the four diagnostic method results from before and after treatment were analyzed with frequency analysis and t-test methods.RESULTS:Before treatment,deficiency syndrome complicated with hyperactivity of pathogenic factors was most common.After treatment,deficiency syndrome was most common.This change from complex syndromes to single syndromes indicates disease and syndrome alleviation.Frequencies of symptoms gained by interrogation after treatment for syndrome of deficiency of heart-Qi,syndrome of deficiency of heart-Yin,and turbid phlegm syndrome were all less severe than those before treatment.Parameters of face color,color on all sub-regions of tongue,color of tongue fur,septic and greasy fur,and lip color after treatment all had significant changes.After treatment,part of the voice diagnosis parameters in the deficiency of heart-Yin and turbid phlegm syndromes had significant changes,but no significant changes were found in the deficiency of heart-Qi syndrome.CONCLUSION:Use of the TCM four diagnostic methods can provide an effective basis forTCM syndrome diagnosis,observation of development of state of illness,and evaluation of clinical therapeutic effects. | Yiqin Wang Jin Xu Rui Guo Chaoxia Xu Yiming Hao Chunfeng Chen Yijian Hong Xiangqun Xiao Wenjie Xu Jing Hong Zhao Lei | 2014 | Journal of Traditional Chinese Medicine2014,34,1: | 12 |
| 9 | Facile Fabrication of Hierarchically Porous Carbonaceous Monoliths with Ordered Mesostructure via an Organic Organic Self-Assembly显示文摘A simple strategy for the synthesis of macro-mesoporous carbonaceous monolith materials has been demonstrated through an organic organic self-assembly at the interface of an organic scaffold such as polyurethane(PU)foam.Hierarchically porous carbonaceous monoliths with cubic(Im m)or hexagonal(p6mm)mesostructure were prepared through evaporation induced self-assembly of the mesostructure on the three-dimensional(3-D)interconnecting struts of the PU foam scaffold.The preparation was carried out by using phenol/formaldehyde resol as a carbon precursor,triblock copolymer F127 as a template for the mesostructure and PU foam as a sacrificial monolithic scaffold.Their hierarchical pore system was macroscopically fabricated with cable-like mesostructured carbonaceous struts.The carbonaceous monoliths exhibit macropores of diameter 100450μm,adjustable uniform mesopores(3.87.5 nm),high surface areas(200870 m2/g),and large pore volumes(0.170.58)cm3/g.Compared with the corresponding evaporation induced self-assembly(EISA)process on a planar substrate,this facile process is a time-saving,labor-saving,space-saving,and highly effi cient pathway for mass production of ordered mesoporous materials. | Chunfeng Xue Bo Tu Dongyuan Zhao | 2009 | Nano Research2009,2,3: | 12 |
| 10 | Evaluation of zeolites synthesized from fly ash as potential adsorbents for wastewater containing heavy metals显示文摘The pure-form zeolites(A and X) were synthesized by applying a two-stage method during hydrothermal treatment of fly ash prepared initial Cu and Zn gel. The difference of adsorption capacity of both synthesized zeolits was assessed using Cu and Zn as target heavy metal ions. It was found that adsorption capacity of zeolite A showed much higher value than that of zeolite X. Thus,attention was focused on investigating the removal performance of heavy metal ions in aqueous solution on zeolite A,comparing with zeolite HS(hydroxyl-solidate) prepared from the residual fly ash(after synthesis of pure-form zeolite A from fly ash) and a commercial grade zeolite A. Batch method was used to study the influential parameters of the adsorption process. The equilibrium data were well fitted by the Langmuir model. The removal mechanism of metal ions followed adsorption and ion exchange processes. Attempts were also made to recover heavy metal ions and regenerate adsorbents. | WANG Chunfeng,LI Jiansheng,SUN Xia,WANG Lianjun,SUN XiuyunSchool of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China. | 2009 | Journal of Environmental Sciences2009,21,1: | 12 |
| 11 | Recent advances in ionic liquids-based hybrid processes for CO_(2) capture and utilization显示文摘CO_(2) capture and utilization(CCU)is an effective strategy to mitigate global warming.Absorption,adsorption and membranes are methods used for CO_(2) separation and capture,and various catalytic pathways have also been developed for CO_(2) utilization.Although widely researched and used in industry,these processes are energy-intensive and this challenge needs to be overcome.To realize further optimization,novel materials and processes are continuously being developed.New generation materials such as ionic liquids(ILs)have shown promising potential for cost-effective CO_(2) capture and utilization.This study reviews the current status of ILs-based solvents,adsorbents,membranes,catalysts and their hybrid processes for CO_(2) capture and utilization.The special properties of ILs are integrated into new materials through hybridization,which significantly improves the performance in the process of CCU. | Shaohan Lian Chunfeng Song Qingling Liu Erhong Duan Hongwei Ren Yutaka Kitamura | 2021 | Journal of Environmental Sciences2021,33,1: | 9 |
| 12 | Design and test of robotic harvesting system for cherry tomato显示文摘Harvesting of fresh-eating cherry tomato was highly costly on labor and time.In order to achieve mechanical harvesting for the fresh-eating tomato,a new harvesting robot was designed,which consisted of a stereo visual unit,an end-effector,manipulator,a fruit collector,and a railed vehicle.The robot configuration and workflow design focused on the special cultivating condition.Three key parts were introduced in detail:a railroad vehicle capably moving on both ground and rail was adopted as the robot’s carrier,a visual servo unit was used to identify and locate the mature fruits bunch,and the end-effector to hold and separate the fruit bunch was designed based on the stalk’s mechanical features.The field test of the new developed robot was conducted and the results were analyzed.The successful harvest rate of the robot was 83%,however,each successful harvest averagely needed 1.4 times attempt,and a single successful harvesting cycle cost 8 s excluding the time cost on moving. | Qingchun Feng Wei Zou Pengfei Fan Chunfeng Zhang Xiu Wang | 2018 | International Journal of Agricultural and Biological Engineering2018,11,1: | 8 |
| 13 | Precollisional tectonics and terrain amalgamation offshore southern Taiwan:Characterizations from reflection seismic and potential field data显示文摘Sponsored by the Chinese National Fundamental Research and Development Program in 2001,Guang-zhou Marine Geological Survey launched out a long geophysical survey from the northeastern part of the South China Sea (SCS),through the Luzon Arc,to the Huatung Basin and the Gagua Ridge. Based on high-resolution seismic data from this survey,combined with gravimetric and magnetic modeling,a systematic effort is made to the study of the regional geodynamics offshore southern Taiwan. By focusing particularly on precollisional tectonic interactions between adjacent geological units and their tectonic affiliations,this study can help reveal early arc-continent collisional processes that formed the Taiwan orogen. The construction of the Manila accretionary prism and its eastward progressive deformation indicate that the subduction of SCS have experienced multiple phases of increased activity. Active precollisional crustal shortening within the Northern Luzon Trough resulted in tilting of sedimentary layers at angles between 6° and 13°. But the shortening induced by tilting accounts for only a tiny part of regional total crustal compression. The eastern flank of the Luzon Arc appears to be more active than the rest,evidenced by active faulting and folding in the intra-arc basins on the eastern flank. Magnetic modeling/inversion shows that the Luzon Arc may have experienced multiple phases of magmatic activities,causing lateral magnetic inhomogeneity. Bouguer gravity anomalies and gravity modeling indicate that the Huatung Basin has anomalously higher crustal and upper mantle densities than those of SCS and the Luzon Arc. In addition,there is a large bathymetric difference between the Huatung Basin and the northeastern part of SCS basin. These observations argue against early hypothesis that the Huatung Basin and the northeastern part of SCS basin may once have belonged to one single oceanic crust,in part or in whole. The Gagua Ridge,as a sliver of uplifted oceanic crust,may be related to a transient northwestward subduction of the western Philippine plate. All evidences point to the argument that the region offshore southern Taiwan is experiencing multiple terrain amalgamation,which is a classical model for continental growth. | LI ChunFeng ZHOU ZuYi LI JiaBiao CHEN HuanJiang GENG JianHua LI Hui | 2007 | Science China Earth Sciences2007,50,6: | 8 |
| 14 | Theoretical prediction,synthesis,and crystal structure determination of new MAX phase compound V2SnC显示文摘Guided by the theoretical prediction,a new MAX phase V2SnC was synthesized experimentally for the first time by reaction of V,Sn,and C mixtures at 1000°C.The chemical composition and crystal structure of this new compound were identified by the cross-check combination of first-principles calculations,X-ray diffraction(XRD),energy dispersive X-ray spectroscopy(EDS),and high resolution scanning transmission electron microscopy(HR-STEM).The stacking sequence of V2C and Sn layers results in a crystal structure of space group P63/mmc.The a-and c-lattice parameters,which were determined by the Rietveld analysis of powder XRD pattern,are 0.2981(0)nm and 1.3470(6)nm,respectively.The atomic positions are V at 4f(1/3,2/3,0.0776(5)),Sn at 2d(2/3,1/3,1/4),and C at 2a(0,0,0).A new set of XRD data of V2SnC was also obtained.Theoretical calculations suggest that this new compound is stable with negative formation energy and formation enthalpy,satisfied Born-Huang criteria of mechanical stability,and positive phonon branches over the Brillouin zone.It also has low shear deformation resistance c44(second-order elastic constant,cij)and shear modulus(G),positive Cauchy pressure,and low Pugh’s ratio(G/B=0.500<0.571),which is regarded as a quasi-ductile MAX phase.The mechanism underpinning the quasi-ductility is associated with the presence of a metallic bond. | Qiang Xu Yanchun Zhou Haiming Zhang Anna Jiang Quanzheng Tao Jun Lu Johanna Rosén Yunhui Niu Salvatore Grasso Chunfeng Hu | 2020 | Journal of Advanced Ceramics2020,9,4: | 8 |
| 15 | Synthesis of pennogenin utilizing the intact skeleton of diosgenin显示文摘The first synthesis of pennogenin, an aglycone of bioactive components of Chinese traditional medicine named Chonglou(Paris), starting from diosgenin, has been reported, which displays a new strategy of utilizing the resource compounds. According to this new strategy, the full and rational utilization of the intact skeleton and functional groups of starting material has been realized in the conversion of diosgenin to pennogenin. The key step for synthesis of pen-nogenin is the regioselective transformation of cholest-5-en-16,22-dion-3,26-diol to cholest- 5,16-dien-22-on-3,26-diol, which can be used to synthesize other bioactive steroids such as cephalostatin and OSW-1. | TIAN Weisheng XU Qihai CHEN Ling ZHAO Chunfeng | 2004 | Science China Chemistry2004,47,2: | 7 |
| 16 | Development of an Amphibious Turtle-Inspired Spherical Mother Robot显示文摘 | Liwei Shi Shuxiang Guo Shilian Mao Chunfeng Yue Maoxun Li Kinji Asaka | 2013 | Journal of Bionic Engineering2013,10,4: | 7 |
| 17 | No expenditure difference among patients with liver cancer at stageⅠ-ⅣV:Findings from a multicenter cross-sectional study in China显示文摘Objective:The number of liver cancer patients in China accounts for more than half of the world.However,China currently lacks national,multicenter economic burden data,and meanwhile,measuring the differences among different subgroups will be informative to formulate corresponding policies in liver cancer control.Thus,the aim of the study was to measure the economic burden of liver cancer by various subgroups.Methods:A hospital-based,multicenter and cross-sectional survey was conducted during 2012・2014,covering 39 hospitals and 21 project sites in 13 provinces across China.The questionnaire covers clinical information,sociology,expenditure,and related variables.All expenditure data were reported in Chinese Yuan(CNY)using 2014 values.Results:A total of 2,223 liver cancer patients were enrolled,of whom 59.61%were late-stage cases(III-IV),and 53.8%were hepatocellular carcinoma.The average total expenditure per liver cancer patient was estimated as 53,220 CNY,including 48,612 CNY of medical expenditures(91.3%)and 4,608 CNY of non-medical expenditures(8.7%).The average total expenditures in stage I,H,m and stage IV were 52,817 CNY,50,877 CNY,50,678 CNY and 54,089 CNY(P>0.05),respectively.Non-medical expenditures including additional meals,additional nutrition care,transportation,accommodation and hired informal nursing were 1,453 CNY,839 CNY,946 CNY,679 CNY and 200 CNY,respectively.The one-year out-of-pocket expenditure of a newly diagnosed patient was 24,953 CNY,and 77.2%of the patients suffered an unmanageable financial burden.Multivariate analysis showed that overall expenditure differed in almost all subgroups(P<0.05),except for sex,clinical stage,and pathologic type.Conclusions:There was no difference in treatment expenditure for liver cancer patients at different clinical stages,which suggests that maintaining efforts on treatment efficacy improvement is important but not enough.To fiirtherly reduce the overall economic burden from liver cancer,more effort should be given to primary and secondary prevention strategies. | Haike Lei Lin Lei Jufang Shi Yongzhong Wu Ling Liang Huiyao Huang Mei He Fangzhou Bai Maomao Cao Hui Qiu Yuting Wang Chengcheng Liu Jia Du Hong Wang Yan Zhang Mengdi Cao Ji Peng Ni Li Chunfeng Qu Min Dai Wanqing Chen Jie He | 2020 | Chinese Journal of Cancer Research2020,32,4: | 7 |
| 18 | SIMUUTION OF ELECTROMAGNETIC TUBE BULGING BASED ON LOOSE COUPLING METHOD显示文摘一个松开的联合方法被使用,到解决电磁的试管bulging.ANSYS/ EMAG 被用来为改变电磁的地,分泌物水流用作刺激的时间建模,以便获得光线、轴的磁性的压力作用于试管,磁性的压力然后被用作边界条件与 DYNAFORM 为试管的高速度变丑建模。试管上的光线的磁性的压力从中心减少到试管目的,轴的磁性的压力在另外的区域在到卷高度和忽视的地点平等者附近是更大的。使变形的细工品的光线的排水量从中心在试管中心和减少附近一致地是分布式的到目的;到到试管目的卷高度的从地点平等者的变丑是很少。这分布与光线的压力的分发一致;变丑上的轴的磁性的压力的效果能被忽略。计算结果与试验性的结果显示出协议很好。 | LI Zhong LI Chunfeng | 2006 | Chinese Journal of Mechanical Engineering2006,19,4: | 6 |
| 19 | FOUR-PARAMETER AUTOMATIC TRANSMISSION TECHNOLOGY FOR CONSTRUCTION VEHICLE BASED ON ELMAN RECURSIVE NEURAL NETWORK显示文摘From the viewpoint of energy saving and improving transmission efficiency,the ZL50E wheel loader is taken as the study object. And the system model is analyzed based on the transmission system of the construction vehicle. A new four-parameter shift schedule is presented,which can keep the torque converter working in the high efficiency area. The control algorithm based on the Elman recursive neural network is applied,and four-parameter control system is developed which is based on industrial computer. The system is used to collect data accurately and control 4D180 power-shift gearbox of ZL50E wheel loader shift timely. An experiment is done on automatic transmission test-bed,and the result indicates that the control system could reliably and safely work and improve the efficiency of hydraulic torque converter. Four-parameter shift strategy that takes into account the power consuming of the working pump has important operating significance and reflects the actual working status of construction vehicle. | ZHANG Hongyan ZHAO Dingxuan TANG Xinxing Ding Chunfeng | 2008 | Chinese Journal of Mechanical Engineering2008,21,1: | 6 |
| 20 | Characterization of nanoscale iron and its degradation of 2,4-dichlorophenol显示文摘Nanoscale iron was detected by TEM, X-ray diffraction and X-ray photoelectron spectroscopy. It was found that the size of the nanoscale iron particles is in the range of 30?40 nm according to TEM image, and it contains abundant Fe3O4 as passivating layers on the surface of the core-shell structure. To improve its performance, dilute HCl was used for the removal of the passivating layers, and the degradation of 2,4-dichlorophenol (2,4-DCP) was measured for the nanoscale iron samples treated and untreated. Experimental results demonstrated that the removal of 2,4-DCP by untreated nanoscale iron is mainly due to the adsorption of 2, 4-DCP by nanoscale iron, and there are no degradation products detected by HPLC in the process. However, excellent dechlorination of 2,4-DCP was gained by HCl-treated nanoscale iron, and 2-chlorophenol, 4-chlorophenol and phenol were detected during the process. It was concluded that dechlorination is the key reaction pathway for the degradation of 2,4-DCP by activated nanoscale iron, and phenol is found to be the main product. | HOU ChunFeng GE XiaoPeng ZHOU YanMei LI Yi WANG DongSheng TANG HongXiaoI | 2010 | Chinese Science Bulletin2010,55,4: | 6 |