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| 1 | Spatiotemporal dynamics of electric power consumption in Chinese Mainland from 1995 to 2008 modeled using DMSP/OLS stable nighttime lights data显示文摘电力消费(EPC ) 是为评估电力使用的基本索引之一。在 EPC 的空间与时间的动力学上获得及时、精确的数据为理解和电力资源的实际推广是关键的。在这研究,一个 EPC 模型从防卫气象学的卫星程序用稳定的夜间灯时间系列数据被开发运作的 Linescan 系统(DMSP/OLS ) 。模型被用来重建在在县的中国大陆的 EPC 的空间模式从 1995 ~ 2008 铺平。另外, EPC 的空间与时间的动力学被分析,并且下列结论被得出。(1 ) EPC 模型可靠地与约 70% 精确性在中国大陆代表了 EPC 的空间与时间的动力学。(2 ) 在中国大陆的大多数区域的 EPC 在对中等层次低,与显著时间、空间的变化;高级 EPC, 58.26% 在东方中国被集中。六城市的凝块(Beijing-Tianjin-Tangshan 区域, Shanghai-Nanjing-Hangzhou 区域,珀尔河三角洲,山东半岛,辽宁省,和四川盆中间南方) 说明了中国大陆的 10.69% 全部的区域,但是消费了 39.23% 电。(3 ) 在从 1995 ~ 2008,和 64% 大陆区域增加的中国大陆的大多数区域的 EPC 在 EPC 显示出重要增加。EPC 的中等增加从 1995 ~ 2008 在 61.62% 东方中国和 80.65% 华中被发现,而 75.69% 西方的中国没在 EPC 显示出重要增加。同时,分别地, 77.27% , 89.35% ,和 66.72% Shanghai-Nanjing-Hangzhou 区域,珀尔河三角洲,和山东半岛在 EPC 显示出高速度的增加。EPC 的中等增加发生在 71.12% Beijing-Tianjin-Tangshan 区域和 72.13% 并且辽宁省中间南方,分别地当没有重要增加发生在 56.34% 四川盆时。 | HE Chunyang MA Qun LI Tong YANG Yang LIU Zhifeng | 2012 | Journal of Geographical Sciences2012,22,1: | 25 |
| 2 | Diffuse axonal injury after traumatic cerebral microbleeds: an evaluation of imaging techniques显示文摘Previous neuropathological studies regarding traumatic brain injury have primarily focused on changes in large structures, for example, the clinical prognosis after cerebral contusion, intracerebral hematoma, and epidural and subdural hematoma. In fact, many smaller injuries can also lead to severe neurological disorders. For example, cerebral microbleeds result in the dysfunction of adjacent neurons and the disassociation between cortex and subcortical structures. These tiny changes cannot be adequately visualized on CT or conventional MRI. In contrast, gradient echo sequence-based susceptibility-weighted imaging is very sensitive to blood metabolites and microbleeds, and can be used to evaluate traumatic cerebral microbleeds with high sensitivity and accuracy. Cerebral microbleed can be considered as an important imaging marker for diffuse axonal injury with potential relevance for prognosis. For this reason, based on experimental and clinical studies, this study reviews the role of imaging data showing traumatic cerebral microbleeds in the evaluation of cerebral neuronal injury and neurofunctional loss. | Jun Liu Zhifeng Kou Yongquan Tian | 2014 | Neural Regeneration Research2014,9,12: | 21 |
| 3 | Upper mantle anisotropy and crust-mantle deformation pattern beneath the Chinese mainland显示文摘Over the past 10 years,the number of broadband seismic stations in China has increased significantly.The broadband seismic records contain information about shear-wave splitting which plays an important role in revealing the upper mantle anisotropy in the Chinese mainland.Based on teleseismic SKS and SKKS phases recorded in the seismic stations,we used the analytical method of minimum transverse energy to determine the fast wave polarization direction and delay time of shear-wave splitting.We also collected results of shear-wave splitting in China and the surrounding regions from previously published papers.From the combined dataset we formed a shear-wave splitting dataset containing 1020 parameter pairs.These splitting parameters reveal the complexity of the upper mantle anisotropy image.Our statistical analysis indicates stronger upper mantle anisotropy in the Chinese mainland,with an average shear-wave time delay of 0.95 s;the anisotropy in the western region is slightly larger(1.01 s)than in the eastern region(0.92 s).On a larger scale,the SKS splitting and surface deformation data in the Tibetan Plateau and the Tianshan region jointly support the lithospheric deformation mode,i.e.the crust-lithospheric mantle coherent deformation.In eastern China,the average fast-wave direction is approximately parallel to the direction of the absolute plate motion;thus,the upper mantle anisotropy can be attributed to the asthenospheric flow.The area from the Ordos block to the Sichuan Basin in central China is the transition zone of deformation modes between the east and the west regions,where the anisotropy images are more complicated,exhibiting'fossil'anisotropy and/or two-layer anisotropy.The collision between the Indian Plate and the Eurasian Plate is the main factor of upper mantle anisotropy in the western region of the Chinese mainland,while the upper mantle anisotropy in the eastern region is related to the subduction of the Pacific Plate and the Philippine Sea Plate beneath the Eurasian Plate. | WANG ChunYong CHANG LiJun DING ZhiFeng LIU QiongLin LIAO WuLin Lucy M FLESCH | 2014 | Science China Earth Sciences2014,57,1: | 18 |
| 4 | Tectonic Evolution of the Meso-Tethys in the Western Segment of Bangonghu-Nujiang Suture Zone: Insights from Geochemistry and Geochronology of the Lagkor Tso Ophiolite显示文摘The subduction of the Bangonghu-Nujiang Meso-Tethys and the collision between the Lhasa and Qiangtang blocks were important events in the growth of the Tibetan crust. However,the timing of collision initiation and closure timing,as well as nature and structure of the Bangonghu ocean basin,are still poorly constrained. The Lagkor Tso ophiolite,located in the south of Gerze County,Tibet,is one of the most completed ophiolites preserved in the southern side of the BangonghuNujiang suture zone. This study discussed the tectonic evolution of the Bangonghu-Nujiang suture zone as revealed by the Lagkor Tso ophiolite investigated by field investigations,petrology,geochemistry,geochronology and tectonic analysis methods. We present new LA-ICP-MS zircon U-Pb and 39Ar/40 Ar ages for the Lagkor Tso ophiolite,in addition to geochemical and platinum-group element(PGE) data presented for the Lagkor Tso ophiolite in Tibet. It is suggested that the ancient Lagkor Tso oceanic basin split in Middle Jurassic(161.2 ± 2.7 Ma – 165.4 ± 3.5 Ma),and experienced a second tectonic emplacement during the Early Cretaceous(137.90 ± 6.39 Ma). The Lagkor Tso ophiolite likely developed in an independent suture zone. The Bangonghu-Nujiang ocean subducted southwards,and the dehydration of the subducting oceanic crust materials caused partial melting of the continental mantle wedge,which formed the second-order expanding center of the obduction dish. This led to inter-arc expansion,followed by the formation of inter-arc and back-arc basins with island arc features,which are represented by ophiolites around the Shiquanhe-Lagkor Tso-Yongzhu region. The tectonic environment presently can be considered to be similar to that of the current Western Pacific,in which a large number of island arc-ocean basin systems are developed. | YUAN Yajuan YIN Zhengxin LIU Weiliang HUANG Qiangtai LI Jianfeng LIU Hongfei WAN Zhifeng CAI Zhourong XIA Bin | 2015 | Acta Geologica Sinica(English Edition)2015,89,2: | 17 |
| 5 | Xuebijing injection alleviates liver injury by inhibiting secretory function of Kupffer cells in heat stroke rats显示文摘OBJECTIVE:To evaluate the effects of Xuebijing(XBJ) injection in heat stroke(HS) rats and to investigate the mechanisms underlying these effects.METHODS:Sixty anesthetized rats were randomized into three groups and intravenously injected twice daily for 3 days with 4 mL XBJ(XBJ group) or phosphate buffered saline(HS and Sham groups) per kg body weight.HS was initiated in the HS and XBJ groups by placing rats in a simulated climate chamber(ambient temperature 40 ℃,humidity 60%).Rectal temperature,aterial pressure,and heart rate were monitored and recorded.Time to HS onset and survival were determined,and serum concentrations of tumor necrosis factor(TNF)-α,inRESULTS:Time to HS onset and survival were significantly longer in the XBJ than in the HS group.Moreover,the concentrations of TNF-α,IL-1β,IL-6,ALT and AST were lower and liver injury was milder in the XBJ than in the HS group.Heat-stress induced structural changes in KCs and hepatic cells were more severe in the HS than in the XBJ group and the concentrations of TNF-α,IL-β and IL-6 secreted by KCs were lower in the XBJ than in the HS group.CONCLUSION:XBJ can alleviate HS-induced systemic inflammatory response syndrome and liver injury in rats,and improve outcomes.These protective effects may be due to the ability of XBJ to inhibit cytokine secretion by KCs. | Yi Chen Huasheng Tong Xingqin Zhang Liqun Tang Zhiguo Pan Zhifeng Liu Pengkai Duan Lei Su | 2013 | Journal of Traditional Chinese Medicine2013,33,2: | 14 |
| 6 | Metallic nanostructures for light trapping in energy-harvesting devices显示文摘Solar energy is abundant and environmentally friendly.Light trapping in solar-energy-harvesting devices or structures is of critical importance.This article reviews light trapping with metallic nanostructures for thin film solar cells and selective solar absorbers.The metallic nanostructures can either be used in reducing material thickness and device cost or in improving light absorbance and thereby improving conversion efficiency.The metallic nanostructures can contribute to light trapping by scattering and increasing the path length of light,by generating strong electromagnetic field in the active layer,or by multiple reflections/absorptions.We have also discussed the adverse effect of metallic nanostructures and how to solve these problems and take full advantage of the light-trapping effect. | Chuan Fei Guo Tianyi Sun Feng Cao Qian Liu Zhifeng Ren | 2014 | Light(Science & Applications)2014,3,1: | 14 |
| 7 | Study of flow induced by sine wave and saw tooth plasma actuators显示文摘The effect of plasma actuator that uses saw-tooth or sine-wave shape electrodes on boundary layer flows is experimentally investigated.The measurement results are compared with a corresponding standard configuration (conventional design using two rectangular strip electrodes)-the actuator that produces a nearly two-dimensional horizontal wall jet upon actuation.PIV measurements are used to characterize the actuators in a quiescent chamber.Operating in a steady manner,the new actuators result in the formation of streamwise and spanwise vortices.That is to say,the new actuators render the plasma actuators inducing three-dimensional variations in the shear layer,offering significant flexibility in flow control.The affected flowfield with the new actuators is significantly larger than that with the conventional linear actuators.While the conventional linear actuators affect primarily the boundary layer flow on a scale of about 1 cm above the wall,the new actuators affect the near wall region at a significantly larger scale.This new design broadens the applicability and enhances the flow control effects and it is potentially a more efficient flow control device. | LIU ZhiFeng WANG LianZe FU Song | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,11: | 12 |
| 8 | Water regime-nitrogen fertilizer incorporation interaction:Field study on methane and nitrous oxide emissions from a rice agroecosystem in Harbin, China显示文摘Water regime and nitrogen(N) fertilizer are two important factors impacting greenhouse gases(GHG) emission from paddy field, whereas their effects have not been well studied in cold region. In this study, we conducted a two-year field experiment to study the impacts of water regime and N fertilizer on rice yields and GHG emissions in Harbin, China, a cold region located in high latitudes. Our results showed that intermittent irrigation significantly decreased methane(CH_4) emission compared with continuous flooding, however,the decrement was far lower than the global average level. The N_2O emissions were very small when flooded but peaked at the beginning of the disappearance of floodwater. The N fertilizer treatments increased CH_4 emissions at low level(75 kg N/ha). But both CH_4 and N_2O emissions were uninfluenced at the levels of 150 kg N/ha and 225 kg N/ha. Rice yields increased under intermittent irrigation and were highest at the level of 150 kg N/ha. From our results, we recommended that the intermittent irrigation and 150 kg N/ha as the ideal water regime-nitrogen fertilizer incorporation for this area to achieve low GHG emissions without impacting rice yields. | Wenjun Dong Jia Guo Lijun Xu Zhifeng Song Jun Zhang Ao Tang Xijuan Zhang Chunxu Leng Youhong Liu Lianmin Wang Lizhi Wang Yang Yu Zhongliang Yang Yilei Yu Ying Meng Yongcai Lai | 2018 | Journal of Environmental Sciences2018,30,2: | 12 |
| 9 | Modeling the impacts of drying trend scenarios on land systems in northern China using an integrated SD and CA model显示文摘Climate-induced drought has exerted obvious impacts on land systems in northern China.Although recent reports by the Intergovernmental Panel on Climate Change(IPCC) have suggested a high possibility of climate-induced drought in northern China,the potential impacts of such drying trends on land systems are still unclear.Land use models are powerful tools for assessing the impacts of future climate change.In this study,we first developed a land use scenario dynamic model(iLUSD) by integrating system dynamics and cellular automata.Then,we designed three drying trend scenarios(reversed drying trend,gradual drying trend,and acceleration of drying trend) for the next 25 years based on the IPCC emission scenarios and considering regional climatic predictions in northern China.Finally,the impacts of drying trend scenarios on the land system were simulated and compared.An accuracy assessment with historic data covering 2000 to 2005 indicated that the developed model is competent and reliable for understanding complex changes in the land use system.The results showed that water resources varied from 441.64 to 330.71 billion m3 among different drying trend scenarios,suggesting that future drying trends will have a significant influence on water resource and socioeconomic development.Under the pressures of climate change,water scarcity,and socioeconomic development,the ecotone(i.e.,transition zone between cropping area and nomadic area) in northern China will become increasingly vulnerable and hotspots for land-use change.Urban land and grassland would have the most prominent response to the drying trends.Urban land will expand around major metropolitan areas and the conflict between urban and cultivated land will become more severe.The results also show that previous ecological control measures adopted by the government in these areas will play an important role in rehabilitating the environment.In order to achieve a sustainable development in northern China,issues need to be addressed such as how to arrange land use structure and patterns rationally,and how to adapt to the pressures of climate change and socioeconomic development together. | HUANG QingXu HE ChunYang LIU ZhiFeng SHI PeiJun | 2014 | Science China Earth Sciences2014,57,4: | 10 |
| 10 | Responses of activities, abundances and community structures of soil denitrifiers to short-term mercury stress显示文摘The responses of activities, abundances and community structures of soil denitrifiers to mercury (Hg) stress were investigated through a short-term incubation experiment. Four soil treatments with different concentrations of Hg (CK, Hg25, Hg50, and Hg100, denoted as 0, 25, 50, and 100 mg Hg/kg dry soil, respectively) were incubated for 28 days. Soil denitrification enzyme activity (DEA) was measured at day 3, 7 and 28. The abundances and community structures of two denitrification concerning genes, nirS (cd1-nitrite reductase gene) and nosZ (nitrous oxide reductase gene), were analyzed using real-time PCR and denaturing gradient gel electrophoresis (DGGE). Results showed that soil DEA was significantly stimulated in the treatments of Hg25 and Hg50 compared with others at day 7. Meanwhile, no difference in the abundances of soil nirS and nosZ was found between Hg spiked treatments and CK, except the lower abundance of nirS (P < 0.05) in the Hg added treatments compared with that in the CK at day 28. The community structures of denitrifiers based on nirS gene presented obvious change at day 7 along with the Hg additions, however, no variation was found in all treatments based on the nosZ gene. The results indicated that Hg (Hg25 and Hg50) had a strongly short-term stimulation on soil DEA, and nirS gene is more sensitive than nosZ gene to Hg stress. | Zhifeng Zhou Yuanming Zheng Jupei Shen Limei Zhang Yurong Liu Jizheng He | 2012 | Journal of Environmental Sciences2012,24,3: | 8 |
| 11 | Turnover and loss of nitrogenous compounds during composting of food wastes显示文摘Few people have so far explored into the research of the dynamics of various nitrogenous compounds(including water-soluble nitrogen)in composting of food wastes.This study aimed to investigate the solid-phase nitrogen,water-soluble nitrogen,nitrogen loss together with ammonia volatilization in the process of food wastes composting.A laboratory scale static aerobic reactor in the experiment was employed in the composting process of a synthetic food waste,in which sawdust was used as the litter amendment.In the experiment,oxygen was supplied by continuous forced ventilation for 15 days.The results have shown that the concentrations of total nitrogen and organic nitrogen decrease significantly in the composting process,whereasNH_(4)^(+)-N concentration increases together with little fluctuation in NO_(3)^(-)-N.After composting,the total content of the water-soluble nitrogen compounds in the compost greatly increased,the total nitrogen loss amounted to 50% of the initial nitrogen,mainly attributed to ammonia volatilization.56.7% of the total ammonia volatilization occurred in the middle and late composting of the thermophilic stage.This suggested that the control at the middle and late composting of thermophilic stage is the key to nitrogen loss in the food waste compost. | Yanmei YANG Xiangfeng ZHANG Zhifeng YANG Beidou XI Hongliang LIU | 2008 | Frontiers of Environmental Science & Engineering2008,2,2: | 8 |
| 12 | The U-Pb chronologic evidence and sedimentary responses of Silurian tectonic activities at northeastern margin of Tarim Basin显示文摘U-Pb ages of Devonian detrital zircons from Tabei Uplift have been determined through LA-ICP-MS test technology.The results revealed that most zircon ages concentrate on 460-414 Ma,especially around 436-423 Ma,indicating possible occurrences of strong tectonic events at the northern margin of Tarim Basin during that period.Combined with previous researches on the basin marginal orogenic belts,intense tectonic activities developed at the northeast margin of Tarim Basin and its obvious sedimentary responses in basin during the end of Ordovician to Early-Middle Silurian are discussed.These include(1) several unconformities within the Late Ordovician-Silurian,showing truncation,erosion,and onlap characteristics,which reflected the local uplift formed during the surrounding extrusion process;(2) the Silurian fluvial delta system from northeast to southwest in Keping,Yingmaili,Hade,and Caohu areas,which reflected the partial uplift at the northeast margin and provided clastic supply to basin;and(3) as indicated by heavy mineral analysis,the Silurian sediments came mainly from the recycles of orogenic belts provenance,which indicated the compress tectonic setting.In addition,a wide range of red mudstone layer distribution in the upper part of the Silurian may be closely related to the surrounding tectonic uplift and the rapid decline of sea levels. | LIU JingYan YANG HaiJun YANG YongHeng CAI ZhenZhong LIU YongQuan RUI ZhiFeng SU ZhenZhen | 2012 | Science China Earth Sciences2012,55,9: | 7 |
| 13 | Effects of copper and zirconium contents on microstructure and magnetic properties of Sm(Co,Fe,Cu,Zr)_(z)magnets with high iron content显示文摘The evolution of the microstructure,microchemistry and magnetic properties of the Sm(CobalFe_(0.28)-CuyZrx)_(7.6)magnets with different Zr and Cu contents was investigated.It is found that the coercivity of the Sm(Co,Fe,Cu,Zr)_(z)magnets is sensitive to Zr content.The deficiency of Zr content causes heterogeneity of Cu and Fe distributions,while an excessive Zr content leads to the formation of a SmCoZr impurity phase.The cellular structure and distribution of Cu concentration.gradient between the cell boundary phase and cell pha se are destroyed by inappropriate Zr content,which results in a reduction of coercivity.The Cu concentration difference between the cell boundary phase and cell phase increases with increasing Cu content.The coercivity of the Sm(CobalFe_(0.28)CuyZ_(r0.02))_(7.6)magnets increases from 10.4 to 25.4 kOe for y=0.05 and y=0.07.However,the excess of Cu element destroys the cell boundary phase and enlarges the cell size,resulting in a significant decrease of squareness and energy density.The optimum performance(remanence of 11.4 kG,coercivity of 25.4 kOe,maximum magnetic ene rgy product of 30.4 MGOe)was obtained for the Sm(Co_(0.63)Fe_(0.28)Cu_(0.07)Zr_(0.02))_(7.6)magnet. | Zhifeng Shang Dongtao Zhang Zhihong Xie Yunqiao Wang Muhammad Haseeb Pengbiao Qiao Weiqiang Liu Ming Yue | 2021 | Journal of Rare Earths2021,39,2: | 7 |
| 14 | Effects of the Lithologic Character of Manufactured Sand on Properties of Concrete显示文摘Six representative parent rocks of sand, including limestone, quartzite, gneisses, granite, Basalt and Marble were selected to conduct a systematical research on the effects of various lithologies of manufactured sand on the workability, mechanism properties, volume stability and durability of manufacturedsand concrete. The experimental results show that the strength of manufactured-sand concrete is slightly higher than that of natural-sand concrete. Furthermore, substituting 15% cement of the concrete mixture with equal quantity of the six different lithology stone powder respectively, the data indicated that they can improve the concrete's workability, postpone the plastic cracking time, enhance the anti-cracking grade, and have no obvious effect on the properties of antifreeze and sulfate attack resistance but reduce the capability to resist chloride ion penetration. Moreover, the differences in concrete's workability, mechanism properties, volume stability and durability caused by various lithologies of manufactured sand and stone powder were not significant and the influence of lithology variety on the macro properties of concrete could be neglected eventually. | 王稷良 YANG Zhifeng LIU Yihan | 2014 | Journal of Wuhan University of Technology(Materials Science)2014,29,6: | 6 |
| 15 | Anaerobic BTEX degradation in soil bioaugmented with mixed consortia under nitrate reducing conditions显示文摘包括苯,甲苯,乙醇苯,和三二甲苯异构体, BTEX 的不同集中被增加进土壤样品在减少条件的硝酸盐下面由扩充改编 BTEX 的协会调查厌氧的降级潜力。所有 BTEX 底层能是厌氧的当起始的集中在在土壤的 100 mg/kg 下面时,联盟者简历在 70 d 以内降级了到非可检测的层次。甲苯比降级率的顺序是的任何另外的 BTEX 混合物,和 high-to-low 快被降级 toluene>ethylbenzene>m-xylene>o-xylene>benzene>p-xylene.Nitrite 与硝酸盐减小被积累,但是亚硝酸根的累积没在整个整个孵化在 BTEX 的降级上有禁止的效果。在土壤的土生土长的细菌能提高充实的混合细菌的 BTEX 简历降级能力。当六 BTEX 混合物同时是在土壤的现在时,他们有更低的起始的集中的降级上没有明显的禁止的效果。或者,苯,o二甲苯,和p二甲苯降级与 300 mg/kg.Higher BTEX 简历降级的更高起始的集中被禁止率与一个单身者的存在相比与钠醋酸盐的增加在土壤样品被观察 BTEX 底层,并且主要底层的刺激或 BTEX 简历降级的 cometabolic 改进的假设似乎可能。 | DOU Junfeng LIU Xiang HU Zhifeng | 2008 | Journal of Environmental Sciences2008,20,5: | 6 |
| 16 | Effects of different fertilizations on fruit quality,yield and soil fertility in field-grown kiwifruit orchard显示文摘Kiwifruit yield and quality and soil nutrients were investigated in a kiwifruit orchard after long-term fertilization to understand the relationship between kiwifruit growth and soil nutrition.Seven fertilization treatments with three replications were applied in a continuous four-year period,including no fertilizer(CK);phosphorus(P)and potassium(K)fertilizers(PK);N and K fertilizers(NK);N and P fertilizers(NP);N,P and K fertilizers(NPK);1.5 times of N,P and K fertilizers(1.5NPK);and chemical fertilizers plus swine manure(NPKM).Fertilization increased kiwifruit yield at the rate of 450 kg N/hm^(2),225 kg P2O5/hm^(2),300 kg K2O/hm^(2).The average yield decreased in a descending order for NPKM(44.6 t/hm^(2)),1.5NPK(42.6 t/hm^(2)),NPK(42.0 t/hm^(2)),NK(38.0 t/hm^(2)),NP(36.7 t/hm^(2)),PK(36.4 t/hm^(2))and CK(34.1 t/hm^(2)).The sugar to acid ratio(S:A)was the highest(10.9)in 2012,and the soluble sugar increased by 15.7%after four-year NPKM fertilization.The NPKM fertilization also significantly increased the vitamin C,soluble solid and firmness.The soil organic carbon contents at 0-20 cm,20-40 cm and 40-60 cm in depth under the NPKM treatment were 27%,29%and 139%higher than that of the CK treatment,respectively.The available N contents at 0-20 cm,20-40 cm and 40-60 cm in depth in the 1.5NPK treatment were 180%,114%and 133%higher than that in the CK treatment,respectively.Balanced fertilization with N,P,K and organic manure is important to soil fertility,which may increase yield and improve quality in field-grown kiwifruit orchard. | Zhao Zuoping Duan Min Yan Sha Liu Zhifeng Wang Qi Fu Jing Tong Yan’an | 2017 | International Journal of Agricultural and Biological Engineering2017,10,2: | 6 |
| 17 | Characteristics and Outcome of Exertional Heatstroke Patients Complicated by Acute Hepatic Injury:A Cohort Study显示文摘Background and Aims:Exertional heatstroke(EHS)is associated with strenuous physical activity in hot environments.The present study aimed to investigate dynamic changes of hepatic function indices in EHS patients and determine risk factors for death.Methods:This single-center retrospective cohort study considered all patients with EHS admitted to the intensive care unit at the General Hospital of Southern Theater Command of PLA from October 2008 to May 2019.Data on general characteristics,organ function parameters,and the 90-day outcome of enrolled patients were collected.Hepatic indices were collected dynamically,and patients with acute hepatic injury(AHI)were identified by plasma total bilirubin(TBIL)≥34.2μmol/L and an international normalized ratio≥1.5,or with any grade of hepatic encephalopathy.Results:In patients who survived,TBIL,alanine aminotransferase and aspartate aminotransferase were increased at 24 h,peaked at 2–3 days,and began to decrease at 5 days.In non-survivors,TBIL continuously increased post-admission.The area under the receiver operating characteristic curve for the prediction of mortality based on sequential organ failure assessment(SOFA)scores was 89.8%,and the optimal cutoff value was 7.5.Myocardial injury and infection were identified as independent risk factors for death in EHS patients with AHI.Conclusions:In EHS patients,hepatic dysfunction usually occurred within 24 h.Patients with AHI had more severe clinical conditions,and significantly increased 90-day mortality rates.SOFA scores over 7.5,complicated with myocardial injury or infection,were found to be risk factors for death in EHS patients with AHI. | Jingjing Ji Jinghua Gao Conglin Wang Leifang Ouyang Zheying Liu Zhifeng Liu | 2021 | Journal of Clinical and Translational Hepatology2021,9,5: | 6 |
| 18 | Microscopic examination of intracellular organisms in bronchoalveolar lavage fluid for the diagnosis of ventilator-associated pneumonia:a prospective multi-center study显示文摘 | Liu Chang Du Zhaohui Zhou Qing Hu Bo Li Zhifeng Yu Li Xu Tao Fan Xuepeng Yang Junhui Li Jianguo | 2014 | Chinese Medical Journal2014,,10: | 6 |
| 19 | Corepressor metastasis-associated protein 3 modulates epithelial-to-mesenchymal transition and metastasis显示文摘Worldwide,metastasis is the leading cause of more than 90%of cancer-related deaths.Currently,no specific therapies effectively impede metastasis.Metastatic processes are controlled by complex regulatory networks and transcriptional hierarchy.Corepressor metastasis-associated protein 3(MTA3)has been confirmed as a novel component of nucleosome remodeling and histone deacetylation(NuRD).Increasing evidence supports the theory that,in the recruitment of transcription factors,coregulators function as master regulators rather than passive passengers.As a master regulator,MTA3 governs the target selection for Nu RD and functions as a transcriptional repressor.MTA3dysregulation is associated with tumor progression,invasion,and metastasis in various cancers.MTA3 is also a key regulator of E-cadherin expression and epithelial-to-mesenchymal transition.Elucidating the functions of MTA3 might help to find additional therapeutic approaches for targeting components of NuRD. | Liang Du Zhifeng Ning Fuxing Liu Hao Zhang | 2017 | Chinese Journal of Cancer2017,36,3: | 5 |
| 20 | Quantifying urbanization levels on the Tibetan Plateau with high-resolution nighttime light data显示文摘The Tibetan Plateau(TP)is undergoing rapid urbanization.To improve urban sustainability and construct eco-logical security barriers,it is essential to quantify the spatial patterns of urbanization level on the TP,but the existing studies on the topic have been limited by the lack of socioeconomic data.This study aims to quantify the urbanization level on the TP in 2018 with Luojia1-01(LJ1-01)high-resolution nighttime light(NTL)data.Specifically,the compounded night light index is used to quantify spatial patterns of urbanization level at mul-tiple scales.The results showed that the TP had a low overall urbanization level with a large internal difference.The urbanization level in the northeast,southeast and south of the TP was relatively high,forming three hotspots centered in Xining City,Lhasa City and Shangri-La City,while the urbanization level in the central and western regions was relatively low.The analysis of influencing factors,based on the random forest model,showed that transportation and topography were the main factors affecting the TP’s spatial patterns of urbanization level.The comparison analysis with socioeconomic statistics and traditional NTL data showed that LJ1-01 NTL data can be used to more effectively quantify the urbanization level since it is more advantageous for reflecting the spatial extent of urban land and describing the spatial structure of socioeconomic activities within urban areas.These advantages are attributed to the high spatial resolution of the data,appropriate imaging time and unaf-fected by saturation phenomena.Thus,the proposed LJ1-01 NTL-based urbanization level measurement method has the potential for wide applications around the world,especially in less-developed regions lacking statistical data.Using this method,we refined the measurement of the TP’s urbanization level in 2018 for multiple scales including the region,basin,prefecture and county levels,which provides basic information for the further urban sustainability research on the TP. | Yihang Wang Zhifeng Liu Chunyang He Pei Xia Ziwen Liu Haimeng Liu | 2020 | Geography and Sustainability2020,1,3: | 5 |