|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Oxygen depletion off the Changjiang (Yangtze River)Estuary显示文摘In a survey on the Yellow Sea and the East China Sea on August 20-30 of 1999, we found a hypoxic zone (<2 mg/L) of 13700 km2 with an average thickness of 20m at the bottom of the Changjiang (Yangtze River) Estuary, with an oxygen minimum value of 1 mg/L. The extension of the dissolved oxygen deficiency extended to the 100m isobath in a southeastward direction along the bottom of the continental shelf of the East China Sea. During the last two decades, the minimum dissolved oxygen values in the low oxygen region of the Changjiang Estuary have decreased from 2.85 mg/L to 1 mg/L. In the hypoxic zone, the apparent oxygen utilization (AOU) was 5.8 mg/L and the total oxygen depletion approximately 1.59×106 t. The strong halocline above the hypoxic zone, as a result of affluent water from the Changjiang, Taiwan Warm Current (TWC), and the high concentrations of particle organic carbon (POC) and nitrogen (PON) are the major factors causing the formation of the hypoxic zone. The POC: PON ratios and nutrient concentration distributions in the hypoxic zone suggest that the oxygen deficiency in the bottom water during the summer in the East China Sea off the Changjiang is the result of organic carbon production enhanced by nutrients from the Changjiang and fluvial organic matter input, followed by a shift in regeneration of nutrients in the East China Sea. | LI Daoji (李道季) ZHANG Jing (张经) HUANG Daji (黄大吉) WU Ying (吴莹) LIANG Jun (梁俊) | 2002 | Science China Earth Sciences2002，45，12： | 80 |
| 2 | Impact of the Wenchuan Earthquake on Tourism in Sichuan,China显示文摘An intensive earthquake, the Wenchuan Earthquake of 8.0 on the Richter scale, struck western Sichuan, China on May 12, 2008. The earthquake has tremendously affected all industries in the quake-hit areas, with no exception of the local tourism. The study of the effect of the earthquake on tourism enriches the theory of tourism, and more importantly, it well serves as the foundation for policy making. The objective of this study is to outline for readers the empirical findings on the various ways that the earthquake affected the operations and viability of tourism in the quake-hit areas. This paper is mainly divided into 3 parts. The first part is to discuss the importance of tourism in the quake-hit areas. The second is to analyze the influencing factors of tourism. The third is to assess the impact of the earthquake on tourism in Sichuan in different seasons. | YANG Weiqiong CHEN Guojie WANG Daojie | 2008 | Journal of Mountain Science2008，5，3： | 11 |
| 3 | Estimation and prediction of plastic waste annual input into the sea from China显示文摘Marine plastic debris has been a pervasive issue since the last century, and research on its sources and fates plays a vital role in the establishment of mitigation measures. However, data on the quantity of plastic waste that enters the sea on a certain timescale remain largely unavailable in China. Here, we established a model using material flow analysis method based on life cycle assessment to follow plastic product from primary plastic to plastic waste with statistical data and monitoring data from accurate sources. This model can be used to estimate and forecast the annual input of plastic waste into the sea from China until 2020. In 2011, 0.547 3–0.751 5 million tons of plastic waste entered the seas in China, with a growth rate of 4.55% per year until 2017. And the amount will decrease to0.257 1 to 0.353 1 million tons in 2020 under the influence of governmental management. The amount of plastic waste discharged from coastal areas calculated in this study was much larger than that from river, thus it is suggested to strengthen the governance and control of plastic waste in coastal fishery activities in China in order to reduce the amount of marine plastic waste input. | BAI Mengyu ZHU Lixin AN Lihui PENG Guyu LI Daoji | 2018 | Acta Oceanologica Sinica2018，37，11： | 11 |
| 4 | MOMENT ESTIMATION FOR MULTIVARIATE EXTREME VALUE DISTRIBUTION显示文摘MOMENTESTIMATIONFORMULTIVARIATEEXTREMEVALUEDISTRIBUTION￥SHIDAOJIAbstract:Momentestimationformultivariateextremevaluedistribut... | SHI DAOJI | 1995 | Applied Mathematics(A Journal of Chinese Universities)1995，10，1： | 9 |
| 5 | Experimental Analysis of Shear Strength of Undisturbed Soil in Leucaena Forest in Jiangjia Ravine,Yunnan,China显示文摘Five leucaena trees of similar age were chosen in Jiangjia Ravine of Dongchuan,Yunnan Province,China,near which the soil samples were collected by digging profiles 2m in depth and 1m in width.In each section,soil samples at different depths were taken for direct shear experiments to determine the root amount and mechanical composition.It is found that the cohesion and internal friction angle of the undisturbed soil are related to the root amount,depth,clay content and breccias content.Cohesion correlates negatively with root content,a finding that differs from that of other researchers.In addition,internal friction angle correlates positively with all these factors. | JIAO Zhen | 2010 | Journal of Mountain Science2010，7，4： | 5 |
| 6 | Pollution level and human health risk assessment of some pesticides and polychlorinated biphenyls in Nantong of Southeast China显示文摘Food consumption is one of the key exposure routes of humans to contaminants.This article evaluated the residue levels of 51 pesticides and 16 polychlorinated biphenyls(PCBs) in selected fish and food items which were commonly consumed in the Nantong area of Jiangsu Province,Southeast China.The 51 pesticides and 16 PCBs were analyzed by highly sensitive gas chromatographytandem mass spectrometry(GC-MS/MS).The results showed that organochlorine pesticides such as dichlorodiphenyltrichloroethanes(DDTs),hexachlorocyclohexanes(HCHs),hexachlorobenzene(HCB) and mirex and other pesticides including chlorpyrifos,pyrethroid pesticides,metolachlor,pyridaben and trifluralin were frequently detected in the samples,which was consistent with the accumulation level and characteristics of these toxic chemicals in human adipose tissue of people living in Nantong.Meanwhile,correlation of the residue level of toxic chemicals with their physical chemical properties and historic use pattern in Nantong area was observed.Combined with dietary survey results at the same sampling locations,human health risk assessment of ingestion through the dietary route was performed.The results suggested that the non-cancer risks of the chemicals investigated can be considered negligible in the Nantong area,however,the cancer risks from lifetime dietary exposure to DDTs and HCB have exceeded the acceptable levels. | Na Wang Li Yi Lili Shi Deyang Kong Daoji Cai Donghua Wang Zhengjun Shan | 2012 | Journal of Environmental Sciences2012，24，10： | 5 |
| 7 | Soil Evolution Features of Debris Flow Waste-Shoal Land显示文摘The reclamation and utilization of debris flow waste-shoal land plays an important role in the mitigation and control of debris flow hazards, which thus contributes a lot to the exploitation of insufficient land resources in mountainous areas and the reduction of losses caused by debris flow. The aim of this paper is to discuss the features and mechanism of soil evolution of debris flow waste-shoal land so as to search for the available modes of its reclamation and utilization. The Jiangjiagou Ravine, a typical debris flow ravine, was selected to study soil evolution features of debris flow waste-shoal land based on the analysis of soil physicochemical properties and soil microstructure. It was found that the soil evolution rates of debris flow waste-shoal land varied with different modes of reclamation. For the land which had been reclaimed for less than 10 years, soil evolved most rapidly in paddy fields, and more rapidly in dry farmland than in naturally restored waste-shoal land. For the land which had been used for more than 10 years, the soil evolution rates of dry farmland, naturally restored waste-shoal land and paddy farmland decreased in the file. For the same utilization period of time, significant differences were recognized in soil evolution features under different modes of reclamation. Analysis data showed that soil clay content, soil thickness, the psephicity of skeleton particles and contents of microaggregates (<0.02 mm) in paddy farmland were all highest. Soil nutrients and porosity of dry farmland were better than those of paddy farmland and naturally restored waste-shoal land, and those of paddy farmland were superior to those of naturally restored waste-shoal land. Paddy farmland characterized by rapid pedogenesis, stable evolution and high utilizability was the priority candidate for the reclamation and utilization of debris flow waste-shoal land. | CUI Peng | 2009 | Journal of Mountain Science2009，6，2： | 5 |
| 8 | Changes in overland flow and sediment during simulated rainfall events on cropland in hilly areas of the Sichuan Basin,China显示文摘水和土壤损失是在四川盆的多山的区域的土地降级的主要原因,中国紫色土壤(粮农组织, Calcaric Regosols ) 广泛地被散布。很少研究都没在在这个区域泼出农田上在雨事件期间在陆上的流动和沉积在变化上被进行。在这研究, 45 个人工的降雨事件分别地与 9% , 18% , 27% , 36% ,和 47% 的斜坡被用于五个流量阴谋。结果证明泼出农田的紫色土壤上的侵蚀过程是复杂的,因为沉积集中在不同状况下面随着时间变化。根据在流量分泌物和沉积集中之间的关联,所有侵蚀事件被分类进三种类型:(1 ) 积极关联;(2 ) 否定关联;并且(3 ) 没有关联。积极关联是主导的,为 60% 所有事件的财务。降雨紧张,斜坡坡度,和耕种处理是影响了侵蚀事件的主要因素。 | Bin Fu Yukuan Wang Pei Xu Daojie Wang | 2009 | Progress in Natural Science:Materials International2009，19，11： | 5 |
| 9 | Flocculation process of fine-grained sediments by the combined effect of salinity and humus in the Changjiang Estuary显示文摘For the great amount of organic compounds and the variation of salinity in the Changjiang Estuary, the study on the flocculation process of fine-grained sediments by the combined effect of salinity and humus in the high-turbid system is of critical significance for the understanding of the mechanism of the formation of the turbidity maximum (TM) .For the great amount of organic compounds and the variation of salinity in the Changjiang Estuary, the study on the flocculation process of fine-grained sediments by the combined effect of salinity and humus in the high-turbid system is of critical significance for the understanding of the mechanism of the formation of the turbidity maximum (TM) .The effects of salinity and humus on the fine-grained sediments have been analyzed through the synthetic study of the aspects of flocculation/coagulation power (F), diameter (D) and zeta potential (Z). And the microcosmic configuration of the flocs has been analyzed by using a scan electron microscope and Fourier Transform Infrared Spectrometry. The results show that: (1) with the increase of salinity, F and D become greater and Z becomes smaller, and with the increase of the concentration of humus, F becomes smaller, but D and Z become greater; (2) the microcosmic configuration of the flocculation shows that humus packs on the fine sediments in the form of salt, and the flocculation model of C-P-OM (C stands for clay; P cations; OM organic materials) can successfully demonstrate the mechanism of the formation of the fine-grained sediments in the high-turbid area of the Changjiang Estuary. | LIU Qizhen LI Jiufa DAI Zhijun LI Daoji | 2007 | Acta Oceanologica Sinica2007，26，1： | 5 |
| 10 | Changes in nutrient uptake of phytoplankton under the interaction between sunlight and phosphate in the Changjiang (Yangtze) River Estuary显示文摘We conducted ship-board incubation experiments to investigate changes in nutrient uptake of phytoplankton under different phosphate concentrations and irradiances in the Changjiang River Estuary and its adjacent waters in China. Under 100% natural irradiance the uptake rates of phosphate, silicate, and nitrate were accelerated at high phosphate levels (1.84 μM), while under low irradiance (about 50% natural irradiance) their uptake rates were restrained at the high but stimulated greatly at the intermediate phosphate concentrations (1.26 μM), as the growth of phytoplankton, changes in nitrite and ammonium uptake didn't follow an obvious pattern. Our results also showed that there were linear relationships between nitrate, silicate and phosphate uptake at different phosphate concentrations under low and high irradiances, and the growth period of phytoplankton was prolonged both at the high phosphate concentrations under high irradiance and at the intermediate concentrations under low irradiance, suggesting that the limitation of phytoplankton growth mainly reflected changes in its growth period, and because no such environment (low irradiance and low phosphate concentrations) actually existed in a high turbidity zone, phytoplankton blooms hardly occurred there. In the absence of irradiance, denitrification occurred readily and phytoplankton was kept decreasing, which resulted in phosphate regeneration. | FANG Tao LI Daoji YU Lihua LI Yun | 2008 | Chinese Journal Of Geochemistry2008，27，2： | 4 |
| 11 | Adsorption of Rhodamine B from Aqueous Solution onto Heat-Activated Sepiolite显示文摘The heat-activated sepiolite,which was prepared using sepiolite by thermal treatment at different temperatures,was used as an absorbent for the removal of rhodamine B(RhB) from aqueous solutions.The structure and morphology of the as-prepared samples were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM) techniques,respectively.The adsorption capacity of RhB onto the heat-activated sepiolite has been examined with pH,adsorbent dosage,contact time,initial dye concentration,and temperature.Kinetic studies showed that the equilibrium was attained within 40 min,and the kinetic data were well described by the pseudo-second-order kinetic model.Besides,the experimental data(R 2 >0.999) fitted the Freundlich model better than the Langmuir model.The as-prepared sample showed higher adsorption capacity(8.33 mg/g) for the removal of RhB than that of sepiolite,which could be attributed to more adsorption sites caused by appropriate heat treatment.The adsorbent can be well regenerated by calcination at 400 ℃ for 2 h and regenerated sepiolite did not exhibited significant loss of adsorption activity after five recycles. | WANG Jiquan WANG Daojie ZHANG Gaoke GUO Yadan LIU Jin | 2013 | Wuhan University Journal of Natural Sciences2013，18，3： | 3 |
| 12 | ON THE PRIMARY DECOMPOSITION THEOREM OF MODULAR LIE SUPERALGEBRAS显示文摘This gives some identities of associative Lie superalgebras and some properties of modular Lie superalgebras. Furthermore, the primry decomposition theorem of modular Lie superalgebras is shown. It is well known that the primary decomposition theorem of modular Lie algebras has played an important role in the classification of the finite-dimensional simple modular Lie algebras (see [5, 6]). Analogously, the primary decomposition theorem of modular Lie superalgebras may play an important role in the open classification of the finite dimensional simple modular Lie superalgebras. | CHEN LIANGYUN MENG DAOJI | 2005 | Chinese Annals of Mathematics,Series B2005，26，4： | 3 |
| 13 | Ammonia-induced oxidative stress triggered proinflammatory response and apoptosis in pig lungs显示文摘Ammonia,a common toxic gas,is not only one of the main causes of haze,but also can enter respiratory tract and directly affect the health of humans and animals.Pig was used as an animal model for exploring the molecular mechanism and dose effect of ammonia toxicity to lung.In this study,the apoptosis of type II alveolar epithelial cells was observed in high ammonia exposure group using transmission electron microscopy.Gene and protein expression analysis using transcriptome sequencing and western blot showed that low ammonia exposure induced T-cell-involved proinflammatory response,but high ammonia exposure repressed the expression of DNA repair-related genes and affected ion transport.Moreover,high ammonia exposure significantly increased 8-hydroxy-2-deoxyguanosine (8-OHdG) level,meaning DNA oxidative damage occurred.In addition,both low and high ammonia exposure caused oxidative stress in pig lungs.Integrated analysis of transcriptome and metabolome revealed that the up-regulation of LDHB and ND2 took part in high ammonia exposure-affected pyruvate metabolism and oxidative phosphorylation progress,respectively.Inclusion,oxidative stress mediated ammonia-induced proinflammatory response and apoptosis of porcine lungs.These findings may provide new insights for understanding the ammonia toxicity to workers in livestock farms and chemical fertilizer plants. | Daojie Li Long Shen Di Zhang Xiaotong Wang Qiankun Wang Wenhao Qin Yun Gao Xiaoping Li | 2023 | Journal of Environmental Sciences2023，，4： | 2 |
| 14 | ON SOLVABLE COMPLETE LIE SUPERALGEBRAS显示文摘The authors discuss the properties of solvable complete Lie superalgebra, proving that solv-able Lie superalgebras of maximal rank are complete. | WANG LIYUN MENG DAOJI | 2003 | Chinese Annals of Mathematics,Series B2003，24，1： | 2 |
| 15 | Impacts of anthropogenic activities on the Changjiang(Yangtze)estuarine ecosystem(1998–2012)显示文摘Estuarine ecosystem has greatly changed in the recent decades due to anthropogenic perturbations in the Changjiang Estuary. Change patterns and impact factors were analyzed based on the continuous data in relation to the Changjiang estuarine ecosystem from 1998 to 2012. The results showed significant decreases in plankton species and annual output of Coilia nasus, Coilia mystus. Furthermore, species and biomass of benthos showed abrupt change in 2003, downward before that and upward after that. It was noted that, Eriocheir sinensis, a high value commercial fish, had an annual production increase of 97%. Reduction of riverine nutrients, especially dissolved silicate(DSI) loads into the estuary could contribute to the decline in Bacillariophyta species. Dredging and dumping works of the North Passage led to the decreases in regional plankton species. However, the species reproduction and releasing projects could restore the estuarine ecosystem through increasing the output of E.sinensis, as well as species and biomass of benthos. | CHEN Dong DAI Zhijun XU Ren LI Daoji MEI Xuefei | 2015 | Acta Oceanologica Sinica2015，34，6： | 2 |
| 16 | Duplication and transcriptional divergence of three Kunitz protease inhibitor genes that modulate insect and pathogen defenses in tea plant(Camellia sinensis)显示文摘Kunitz protease inhibitors(KPIs)are ubiquitous in plants and act as crucial compounds in defense responses against insect attack and pathogen infection.However,the influence of gene duplication on the postdivergence of the CsKPI genes involved in biotic stresses in tea plant is not well known.Here,we identified three CsKPI genes from tea plant(Camellia sinensis)and characterized their expression and evolutionary patterns among plant species.We found that CsKPI1,CsKPI2,and CsKPI3 diverged from their common ancestor 72.94 million years ago(MYA),and the tandem duplication of CsKPI2 and CsKPI3 occurred 26.78 MYA.An in vitro protein assay showed that the three CsKPI proteins were functional and inhibited the production of p-nitroanilide(PNA)from an artificial substrate.The three CsKPI-GFP fusion proteins localized to the cytoplasm.We showed that salicylic acid(SA)and transcripts of CsKPI2 and CsKPI3 significantly accumulated after infection with Glomerella cingulata.The application of exogenous SA stimulated the high expression of both CsKPI2 and CsKPI3 by activating cis-elements within their promoters.Under Ectropis oblique attack,CsKPI1 expression and jasmonic acid(JA)levels were more abundant in both insect-damaged leaf tissues and undamaged neighboring leaves.The application of jasmonic acid methyl ester elicited high expression levels of CsKPI1,suggesting that CsKPI1 accumulation requires JA production in tea plant.The overall findings suggest that the transcriptional divergence of KPI genes after duplication led to the specialized role of CsKPI1 in the physiological response to insect stress;the functional conservation between CsKPI2 and CsKPI3 confers resistance to pathogen infection in tea plant. | Junyan Zhu Yaxian He Xiaomei Yan Lu Liu Rui Guo Xiaobo Xia Daojie Cheng Xiaozeng Mi Lidiia Samarina Shenrui Liu Enhua Xia Chaoling Wei | 2019 | Horticulture Research2019，6，1： | 2 |
| 17 | Complete Lie algebras with maximal-rank nilpotent radicals显示文摘Ccmplete Lie algebras with maximal-rank nilpotent radicals are constructed by using the representation theory of complex semisimple Lie algebras. A structure theorem and an isomorphism theorem for this kind of complete Lie algebras are obtained. As an application of these theorems, the complete Lie algebras with abelian nilpotont radicals are classified. At last, it is proved that there exists no complete Lie algebra whose radical is a nilpotent Lie algebra with maximal rank. | ZHU Linsheng and MENG Daoji Department of Mathematics, Changshu College , Changshu 215500, China Department of Mathematics, Nankai University, Tianjin 300071, China | 1999 | Chinese Science Bulletin1999，44，4： | 2 |
| 18 | The classification of complete Lie algebras with low dimensions显示文摘 | Zhu Linsheng Meng Daoji | 1997 | Algebra Colloquium1997，4，1： | 1 |
| 19 | Depending on the stage of hepatosteatosis, p53 causes apoptosis primarily through either DRAM ‐induced autophagy or BAX显示文摘 | Kai Liu Jinli Lou Tao Wen Jiming Yin Bin Xu Wei Ding Anna Wang Daojie Liu Chao Zhang Dexi Chen Ning Li | 2013 | Liver Int2013，，10： | 1 |
| 20 | Physical properties of poly (ether ketone ketone)/mica composites:effect of filler content显示文摘 | Gan Daoji Lu Shiqiang Song Caisheng Wang Zhijian | 2001 | Materials Letters2001，48，5： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员