|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Spatial patterns of ecosystem vulnerability changes during 2001–2011 in the three-river source region of the Qinghai-Tibetan Plateau, China显示文摘The three-river source region(TRSR, including Yangtze, Yellow and Lancang rivers), located in the Qinghai-Tibetan Plateau, China, is a typical alpine zone with apparent ecosystem vulnerability and sensitivity. In this paper, we introduced many interdisciplinary factors, such as landscape pattern indices(Shannon diversity index and Shannon evenness index) and extreme climate factors(number of extreme high temperature days, number of extreme low temperature days, and number of extreme precipitation days), to establish a new model for evaluating the spatial patterns of ecosystem vulnerability changes in the TRSR. The change intensity(CI) of ecosystem vulnerability was also analyzed. The results showed that the established evaluation model was effective and the ecosystem vulnerability in the whole study area was intensive. During the study period of 2001–2011, there was a slight degradation in the eco-environmental quality. The Yellow River source region had the best eco-environmental quality, while the Yangtze River source region had the worst one. In addition, the zones dominated by deserts were the most severely deteriorated areas and the eco-environmental quality of the zones occupied by evergreen coniferous forests showed a better change. Furthermore, the larger the change rates of the climate factors(accumulative temperature of ≥10°C and annual average precipitation) are, the more intensive the CI of ecosystem vulnerability is. This study would provide a scientific basis for the eco-environmental protection and restoration in the TRSR. | GUO Bing ZHOU Yi ZHU Jinfeng LIU Wenliang WANG Futao WANG Litao YAN Fuli WANG Feng YANG Guang LUO Wei JIANG Lin | 2016 | Journal of Arid Land2016，8，1： | 16 |
| 2 | Temporal and spatial variability response of groundwater level to land use/land cover change in oases of arid areas显示文摘这份报纸由使用地理信息系统(GIS ) 在 Sangong 河分水岭在干旱绿洲在地下水水平的时间、空间的可变性上在陆地使用 / 盖住变化(LUCC ) 的影响上进行案例研究,遥感(RS ) 和 geostatistical 方法。在在 1978, 1987 和 1998 的分水岭的地下水水平的时间、空间的可变性是由使用 semivariogram 模型和 Kriging 插值的 regressed。在 1978 从天线图象导出的 LUCC 分类地图,在 1987 的 Landsat TM 图象和在 1998 的 Landsat ETM 图象被用来迭加并且与地下水深度的不同等值线图在这些区域分析 LUCC 类型的变换关系。结果证明地下水的变化再装不在整个绿洲是那么重要的,但是时间、空间的 LUCC 在从 1978 ~ 1998 的 20 年的时期期间在正常流动时期或在高流动时期是重要的,并且在他们之间有靠近的关联。通常有地下水水平(33.4%) 的中等空间关联,并且空间自相关距离是 17.78 km。地下水水平严厉地被改变的区域也是陆地资源逐渐地被利用的区域,它主要包括农田,树林,和大楼的利用,工业并且采矿陆地。学习表明 LUCC 强烈在干旱绿洲影响地下水水平的时间、空间的可变性。学习结果具有为讲道理地利用浅地下水资源并且维持干旱绿洲的稳定性的直接、实际的意义。 | YAN Jinfeng CHEN Xi LUO Geping GUO Quanjun | 2006 | Chinese Science Bulletin2006，51，A01： | 12 |
| 3 | A spatial geostatistical analysis of impact of land use development on groundwater resources in the Sangong Oasis Region using remote sensing imagery and data显示文摘In this study, the relationship between land use and cover change (LUCC) and variation of groundwater level and quality in the Sangong Oasis Region was investigated using a spatial geostatistical approach. Specifically, interactions among groundwater, surface water, and LUCC were analyzed through the utilization of geographical information system (GIS), remote sensing (RS) Imagery processing, and geostatistics. Study outputs indicated that recharging into the ground-water did not change significantly during the period from 1978 to 1998. However, both LUCC and groundwater level changed substantially in the Sangong Oasis Region, and their variations were closely correlated to each other spatially and temporally over the past two decades. It confirmed that urbanization process and increased industrial activities were the direct reasons of groundwater table descending and the deterioration of water quality. The results of this research provided a scientific basis for understanding sustainability-related problems and solution options in the oasis areas of western China. | Chen, Xi Yan, JinFeng Chen, Zhi Luo, GePing Song, Qing Xu, WenQiang | 2009 | Journal of Arid Land2009，1，1： | 6 |
| 4 | Value of Multi-detector CT in Detection of Isolated Spontaneous Superior Mesenteric Artery Dissection显示文摘Objective To investigate the role of multi-detector computed tomography(CT) in the diagnosis and classification of isolated spontaneous superior mesenteric artery dissection(ISSMAD). Methods From July 2012 to December 2016,30 consecutive patients with ISSMAD underwent CT scan at least two times. We retrospectively summarized the clinical characteristics and CT findings of them. The stenosis ratio of true lumen was compared between the patients without bowel ischemia and ones with bowel ischemia. Results There were 5 cases of type I ISSMAD,14 cases of type Ⅱ,1 case of type Ⅲ,7 cases of type Ⅳ and 3 cases of type V. Intestinal ischemia occurred in 5 patients. The stenosis ratio of true lumen in the patients without bowel ischemia was lower than that with bowel ischemia(45.6% vs. 76.0%,t=–14.5,P=0.000). Five patients with intestinal ischemia underwent superior mesenteric artery stenting and others received conservative therapy. The abdominal pain was alleviated for all the patients after treatment. Follow-up was complete in 30 cases. Follow-up CT angiography of superior mesenteric artery showed dissection remodeling in 12 patients. Conclusion Multi-detector CT is a valuable method in diagnosis and classification of ISSMAD and monitoring the changes of dissection. | Tao Li Shaohong Zhao Jinfeng Li Zili Huang Chuncai Luo Li Yang | 2017 | Chinese Medical Sciences Journal2017，32，1： | 5 |
| 5 | Materials Experiment on Tiangong-2 Space Laboratory显示文摘During the China's Tiangong-2(TG-2) flight mission, the experiments of 18 kinds of material samples were conducted in space by using a Multiple Materials Processing Furnace(MMPF) mounted in the orbital module of the TG-2 space laboratory. After the experiments of 12 kinds of samples of the first and second batches were completed successfully, astronauts packed and brought them back to the ground by ShenzhouII spacecraft. By studying processing and formation on semiconductor and optoelectronics materials, metal alloys and metastable materials, functional single-crystal, micro-and nano-composite materials encapsulated in sample ampoules both in space and on Earth, we expect to explore some physical and chemical processes and mechanism of the materials formation that are normally obscured and therefore are difficult to study quantitatively on the ground due to the gravity-induced convection, to obtain the processing and synthesis technology for preparing high quality materials, and lead to the improvement and development of materials processing techniques on Earth, and also develop the experiment device and comprehensive ability for materials experiment in microgravity environment. This report briefly introduces the main points of each research work and preliminary comparative analysis results of 12 samples carried out by scientists undertaking research task. | LI Xiangyang LU Ye MENG Xiangjian WANG Jianlu WANG Reng CHEN Lidong HUA Zile LI Xiaoya SHI Jianlin LIU Jinfeng XU Guisheng WEI Bingbo XIE Wenjun YIN Zhigang ZHANG Xingwang JIANG Hongxiang LI Hong LUO Xinghong ZHANG Haifeng ZHAO Jiuzhou WANG Binbin PAN Mingxiang | 2018 | 空间科学学报2018，38，5： | 4 |
| 6 | Energy sources identify metabolic phenotypes n pancreatic cancer显示文摘 | Chen Liang Yi Qin Bo Zhang Shunrong Ji Si Shi Wenyan Xu Jiang Liu Jinfeng Xiang Dingkong Liang Qiangsheng Hu Liang Liu Chen Liu Guopei Luo Quanxing Ni Jin xu Xianjun Yu | 2016 | Acta Biochimica et Biophysica Sinica2016，48，11： | 3 |
| 7 | A New Indicator for Global Food Security Assessment: Harvested Area Rather Than Cropland Area显示文摘Cropland area has long been used as a key indicator of food security.However,grain yield is not solely controlled by the area of the cropland.Therefore,we proposed a new indicator to assess food security.Results show that from 1992 to 2004,the global cropland area increased by 840200 km^(2)(99.4%),but the grain yield increased only by 310 million t(29.1%);and from 2004 to 2015,the cropland area decreased by 39000 km^(2)(4.64%),but the grain yield increased by 370 million t(70.84%).This result showed that grain yield was not linearly correlated with cropland area,and delimiting the threshold of cropland protection may not guarantee food security.Combined with further correlation analysis,we found that the increase in the global grain yield was more closely related to the harvested area(R^(2)=0.94),which indicated that the harvested area is a more scientific and accurate indicator than cropland area in terms of guaranteeing food security.Therefore,if governments want to ensure the food security,they should choose a new and more accurate indicator:harvested area rather than cropland area. | SONG Fengjiao WANG Shijie BAI Xiaoyong WU Luhua WANG Jinfeng LI Chaojun CHEN Huan LUO Xuling XI Huipeng ZHANG Sirui LUO Guofeng YAN Mengqi ZHEN Qingqing | 2022 | Chinese Geographical Science2022，32，2： | 2 |
| 8 | Direct fabrication of microlens arrays with high numerical aperture by ink-jetting on nanotextured surface显示文摘 | Yu Luo Li Wang Yucheng Ding Huifen Wei Xiuqing Hao Dongdong Wang Yang Dai Jinfeng Shi | 2013 | Applied Surface Science2013，，： | 1 |
| 9 | Misallocation in Chinese Manufacturing and Services: A Variable Markup Approach显示文摘Cross-country comparison reveals an unusually small service sector in China. Using firm-level data from Chinas 2008 economic census, we find two facts that speak to a novel mechanism of misallocation within service and between manufacturing and service sectors. First, compared with the manufacturing sector, there are more stateowned enterprises and fewer entrants in the service sector. Second, markups increase with firm size, and the increase is more dramatic among service firms. We interpret these facts through the lens of a monopolistic competition model with heterogeneous firms and variable markups. A multisector model shows a new channel that translates asymmetric barriers to entry across sectors into sectoral markup differences, which in turn cause sectoral misallocation. Quantitative analysis shows that when reducing entry barriers to service firms to the extent observed for manufacturing firms, the model predicts a 12-percentage-point increase in the service employment share. | Jinfeng Ge Jie Luo Yangzhou Yuan | 2019 | China & World Economy2019，27，4： | 1 |
| 10 | Degradation Mechanism of Polyimide Film Under Square Impulse Voltages显示文摘Partial discharge (PD) under a sequence of high-repetition-rate square pulses is one of the key factors leading to premature failure of insulation systems of inverter-fed motors. Polyimide (PI) film is an important type of insulating material used in the inverter-fed motors. In this paper, micro-morphology and structure change of PI film aged by bipolar continuous square impulse voltage (BCSIV) with ampli- tude above partial discharge inception voltage (PDIV) are investigated by scanning electron microscope (SEM). The chemical bonds of PI chain are analyzed through Fourier transform infrared spectroscopy (FTIR). The results show that the degradation mechanism of PI film is the fracturing of chemical bonds caused by the erosion from PDs. Three layers are displayed in both 100 HN film and 100 CR film. The de- gradation path of PI film is initiated from surface and then gradually extends to the interior with continuous aging. Nano-fillers can retard the degradation of PI film and prolong its lifetime. | LUO Yang WU Guangning XIA Jinfeng ZHU Guangya WANG Peng CAO Kaijiang | 2013 | 高电压技术2013，39，8： | 1 |
| 11 | Combined application of biochar with fertilizer promotes nitrogen uptake in maize by increasing nitrogen retention in soil显示文摘Combined application of biochar with fertilizers has been used to increase soil fertility and crop yield.However,the coupling mechanisms through which biochar improves crop yield at field scale and the time span over which biochar affects carbon and nitrogen transformation and crop yield are still little known.In this study,a long-term field trial(2013-2019)was performed in brown soil planting maize.Six treatments were designed:CK-control;NPK-application of chemical fertilizers;C1PK-low biochar without nitrogen fertilizer;C1NPK,C_(2)NPK and C_(3)NPK-biochar at 1.5,3 and 6 t ha^(−1),respectively,combined with chemical fertilizers.Results showed that theδ^(15)N value in the topsoil of 0-20 cm layer in the C_(3)NPK treat-ment reached a peak of 291‰at the third year(2018),and demonstrated a peak of 402‰in the NPK treatment in the initial isotope trial in 2016.Synchronously,SOC was not affected until the third to fourth year after biochar addition,and resulted in a significant increase in total N of 2.4 kg N ha^(−1) in 2019 in C_(3)NPK treatment.During the entire experiment,the ^(15)N recovery rates of 74-80%were observed highest in the C_(2)NPK and C_(3)NPK treatments,resulting in an annual increase in yields significantly.The lowest subsoilδ^(15)N values ranged from 66‰to 107‰,and the ^(15)N residual rate would take 70 years for a complete decay to 0.001%in the C_(3)NPK.Our findings suggest that biochar compound fertilizers can increase C stability and N retention in soil and improve N uptake by maize,while the loss of N was minimized.Biochars,therefore,may have an important potential for improving the agroecosystem and ecological balance. | Jing Peng Xiaori Han Na Li Kun Chen Jinfeng Yang Xiumei Zhan Peiyu Luo Ning Liu | 2021 | Biochar2021，3，3： | 1 |
| 12 | Cryprotec- tire effects of trehalose on grass carp ( cteopharyngodon idellus) surimi during frozen storage显示文摘 | Pan Jinfeng Shen Huixiong Luo Yongkang | 2010 | Journal of Food Processing and Preservation2010，34，4： | 1 |
| 13 | Dual Effects of Respiratory Syncytial Virus Infections on Airway Inflammation by Regulation of Th17/Treg Responses in Ovalbumin-Challenged Mice显示文摘 | Jia Wang Lingwen Kong Qingli Luo Bei Li Jinfeng Wu Baojun Liu Xiao Wu Jingcheng Dong | 2014 | Inflammation2014，，6： | 1 |
| 14 | An ischemic area-targeting,peroxynitrite-responsive,biomimetic carbon monoxide nanogenerator for preventing myocardial ischemia-reperfusion injury显示文摘Myocardial ischemia-reperfusion (MI/R) injury is common in patients who undergo revascularization therapy for myocardial infarction, often leading to cardiac dysfunction. Carbon monoxide (CO) has emerged as a therapeutic molecule due to its beneficial properties such as anti-inflammatory, anti-apoptotic, and mitochondrial biogenesis-promoting properties. However, its clinical application is limited due to uncontrolled release, potential toxicity, and poor targeting efficiency. To address these limitations, a peroxynitrite (ONOO )-triggered CO donor (PCOD585) is utilized to generate a poly (lactic-co-glycolic acid) (PLGA)-based, biomimetic CO nanogenerator (M/PCOD@PLGA) that is coated with the macrophage membrane, which could target to the ischemic area and neutralize proinflammatory cytokines. In the ischemic area, local produced ONOO triggers the continuous release of CO from M/PCOD@PLGA, which efficiently ameliorates MI/R injury by clearing harmful ONOO , attenuating the inflammatory response, inhibiting cardiomyocyte apoptosis, and promoting mitochondrial biogenesis. This study provides a novel insight into the safe therapeutic use of CO for MI/R injury by utilizing a novel CO donor combined with biomimetic technology. The M/PCOD@PLGA nanogenerator offers targeted delivery of CO to the ischemic area, minimizing potential toxicity and enhancing therapeutic efficacy. | Jinyan Zhang Liwei Liu Zhen Dong Xicun Lu Wenxuan Hong Jin Liu Xiaoyi Zou Jinfeng Gao Hao Jiang Xiaolei Sun Kai Hu Youjun Yang Junbo Ge Xiao Luo Aijun Sun | 2023 | Bioactive Materials2023，，10： | 1 |
| 15 | 不同生境内啮齿动物对辽东栎幼苗的频率依赖性捕食及其对幼苗生长与存活的影响显示文摘啮齿动物对辽东栎(Quercus wutaishanica)种子的侵袭取决于种子的大小及其捕食频率。然而,啮齿动物对幼苗的捕食是否具有频率依赖性还不清楚。本研究在宁夏六盘山区辽东栎次生林内,选取林窗和林下两种生境,按5个种子大小频率(9:1,7:3,5:5,3:7和1:9)移栽萌发生根的辽东栎幼苗,探究啮齿动物对幼苗子叶的频率依赖性捕食及其对幼苗生长与存活的影响。研究结果表明:(i)幼苗移栽初期(1-7天),啮齿动物更偏好大种子建立幼苗的子叶。然而,移栽后8-60天,啮齿动物更偏好小种子建立幼苗的子叶,即表现为正频率依赖性捕食。(ii)尽管幼苗捕食率在林下高于林窗,但经过一个生长周期后,林窗内幼苗存活率高于林下(分别为5.40%和2.00%)。(iii)捕食子叶对辽东栎幼苗生长无显著影响,但顶芽被咬掉后幼苗各生长参数均显著降低(P<0.05)。这些结果不仅为啮齿动物和不同表型辽东栎幼苗的共存提供了新的见解,还揭示了栎树幼苗的更新策略。 | Jinfeng Zhang Jingru Ge Xingfu Yan Buddhi Dayananda Yonghong Luo Junqing Li | 2023 | Journal of Plant Ecology2023，16，3： | 0 |
| 16 | Biological evaluation of 2-methylpyrimidine derivatives as active pan Bcr-Abl inhibitors显示文摘We designed a series of 2-methylpyrimidine derivatives as new BCR-ABL inhibitors using scaffold-hopping strategy.These synthetic compounds exhibited significant inhibition against a broad spectrum of Bcr-Abl mutants including the gatekeeper T315I mutant.Compound 7u showed very potent kinase inhibitory activities against Bcr-Abl WT,Bcr-Abl E255K,Bcr-Abl Q252H,Bcr-Abl G250E and Bcr-Abl T315I,with IC50 values of 0.13 nM,0.17 nM,0.24 nM,0.19 nM and 0.65μM,respectively.This compound also displayed anti-proliferation activity against K562 cell line with an IC50 value of 1.1 nM,thus representing a new lead for further optimization. | ZOU DingBiao QIU YaTao TU ZhengChao LIAO ChenZhong LUO JinFeng MENG QingQing YAO RiSheng LI Zheng JIANG Sheng | 2014 | Science China Chemistry2014，57，6： | 0 |
| 17 | Correlation of Critical Micelle Concentration of Sodium Alkyl Benzenesulfonates with MolecularDescriptors显示文摘The hydrophobic-hydrophilic segment geometries of 36 sodium alkyl benzenesulfonates were fully optimized and calculated by abini-tio RHF/6-31G(d), quantum chemical data such as the charge density, the energy of molecular orbital and the dipole moment were obtained. Based on two topological descriptors and one quantum chemical descriptor, a significant quantitative structure-property relationship (QSPR) model for the critical micelle concentration (c_ mc) of sodium alkyl benzenesulfonate surfactants was obtained by using the multiple linear regression technique. The good correlation coefficient of R~ 2 (0.980) and cross-validation correlation coefficient R^2_ cv (0.974) indicate the excellent capability and stability of the regression equation developed. In addition, linear relationships between logarithm of c_ mc and the dipole moment of surfactant hydrophobic hydrophilic segments for each homologous series have also been established with high correlation coefficient. | LI Xuefeng ZHANG Gaoyong DONG Jinfeng ZHOU Xiaohai YAN Xiaoci LUO Mingdao | 2006 | Wuhan University Journal of Natural Sciences2006，11，2： | 0 |
| 18 | Long noncoding RNA LINC01088 inhibits esophageal squamous cell carcinoma progression by targeting the NPM1-HDM2-p53 axis显示文摘Esophageal squamous cell carcinoma(ESCC)is characterized by extensive metastasis and poor prognosis.Long noncoding RNAs(lncRNAs)have been shown to play important roles in ESCC.However,the specific roles of lncRNAs in ESCC tumorigenesis and metastasis remain largely unknown.Here,we investigate LINC01088 in ESCC.Differentially expressed LINC01088 levels are screened from the GEO database.We find that LINC01088 is expressed at low level in collected clinical samples and is correlated with vascular tumor emboli and poor overall survival time of patients after surgery.LINC01088 inhibits not only ESCC cell migration and invasion in vitro,but also tumorigenesis and metastasis in vivo.Mechanistically,LINC01088 directly interacts with nucleophosmin(NPM1)and increases the expression of NPM1 in the nucleoplasm compared to that in the nucleolar region.LINC01088 decreases mutant p53(mut-p53)expression and rescues the transcriptional activity of p53 by targeting the NPM1-HDM2-p53 axis.LINC01088 may also interfere with the DNA repair function of NPM1 by affecting its translocation.Our results highlight the potential of LINC01088 as a prognostic biomarker and therapeutic target of ESCC. | Fan Liang Qiuli Luo Haibo Han Jianzhi Zhang Yue Yang Jinfeng Chen | 2023 | Acta Biochimica et Biophysica Sinica2023，55，3： | 0 |
| 19 | Pollutant emissions from biomass burning:A review on emission characteristics,environmental impacts,and research perspectives显示文摘Biomass is one most abundant resource on the earth providing important energies in support of so-cioeconomic development in many areas.Burning of biomass fuels comprises to nearly 10%of the total energy from anthropogenic combustion processes:however,as the burning is usually incomplete,this process yields products of incomplete combustion posing consequently significant impacts on air quality,human health,and climate change.Here,we analyzed spatiotemporal characteristics in intentional and unintentional biomass burning from different sectors,discussed impacts of biomass burning emissions on indoor and outdoor air quality,and consequent influences on human health.The global total con-sumption amount of biomass including both natural and anthropogenic sources was approximately 7900 Tg in 2019,with significantly large regional and sectorial discrepancies among regions.Globally,anthropogenic biomass burning amounts increased gradually,but notably in some developing countries like China residential consumption of biomass fuels,as one large sector of biomass use,decreased over time.Uncommercial biomass consumption needs to be accurately quantified.There are relatively rich datasets of pollutant emission factors from biomass burning,including laboratory and field tests,but still large variations exit and contribute substantially to the uncertainty in emission inventory.Global pri-mary PM2.5,black carbon and organic carbon emissions from biomass burning were about 51,4.6,and 29 Tg,respectively,contributing to nearly 70%,55%,and 90%of the total emission from all sources,and emissions from the residential sector and open fires are major sources.Brown carbon emissions from biomass burning attracts growing interests but available studies adopted different methodologies challenging the comparability of those results.Biomass burning emissions polluted not only ambient air but more severely indoor air quality,adversely affecting human health.Future studies that should be emphasized and promoted are suggested. | Ke Jiang Ran Xing Zhihan Luo Wenxuan Huang Fan Yi Yatai Men Nan Zhao Zhaofeng Chang jinfeng Zhao Bo Pan Guofeng shen | 2024 | Particuology2024，85，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员