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| 1 | The value and limitation of transcatheter arterial chemoembolization in preventing recurrence of resected hepatocellular carcinoma显示文摘AIM: To evaluate the value and limitation of postoperative transcatheter arterial chemoembolization (TACE) in preventing recurrence of hepatocellular carcinoma (HCC). METHODS: In the first group, 987 postoperative patients with HCC, who did not have any evidence of recurrence in the first preventative TACE but were found to have recurrence at different times during the follow-up survey, were analyzed. In the second group, 643 postoperative patients with HCC had no TACE for compared study. To study the relationship between the recurrence time and the number of TACE treatments was analyzed. RESULTS: The 6-, 12-, and 18-mo recurrence rates in the first and second groups were 22.2% (210 cases) vs 61.6% (396 cases), 78.0% (770 cases) vs74.7% (480 cases) and 88.6% (874 cases) vs80.1% (515 cases). There were significant differences between the recurrence rates of the two groups at 6 mo (P<0.0001).CONCLUSION: The principal role of TACE after HCC operation is to suppress, detect early and treat micrometastasis. It has a good effect of preventing recurrence of HCC in 6 mo, but such an effect is less satisfactory in a longer period. When it is uncertain whether HCC is singlecentral or multi-central and if there is cancer residue or metastasis after operation, TACE is valuable to prevent recurrence. | Hong-YanCheng XiangWang DongChen Ai-MinXu Yu-ChenJia | 2005 | World Journal of Gastroenterology2005，11，23： | 38 |
| 2 | Multifunctional lymph-targeted platform based Mn@mSiO2 nanocomposites: Combining PFOB dual-mode imaging and DOX for cancer diagnose treatment on for and显示文摘 | Tian Liu Guangyu Wu Jiejun Cheng Qing Lu Yanjie Yao Zhenjing Liu Dongchen Zhu Juan Zhou Jianrong Xu Jun Zhu Dannong He | 2016 | Nano Research2016，9，2： | 11 |
| 3 | Theoretical mean-variance relationship of IP network traffic based on ON/OFF model显示文摘Mean-variance relationship (MVR),nowadays agreed in power law form,is an important function. It is currently used by traffic matrix estimation as a basic statistical assumption. Because all the existing papers obtain MVR only through empirical ways,they cannot provide theoretical support to power law MVR or the definition of its power exponent. Furthermore,because of the lack of theoretical model,all traffic matrix estimation methods based on MVR have not been theoretically supported yet. By observing both our laboratory and campus network for more than one year,we find that such an empirical MVR is not sufficient to describe actual network traffic. In this paper,we derive a theoretical MVR from ON/OFF model. Then we prove that current empirical power law MVR is generally reasonable by the fact that it is an approximate form of theoretical MVR under specific precondition,which can theoretically support those traffic matrix estimation algorithms of using MVR. Through verifying our MVR by actual observation and public DECPKT traces,we verify that our theoretical MVR is valid and more capable of describing actual network traffic than power law MVR. | JIN Yi ZHOU Gang JIANG DongChen YUAN Shuai WANG LiLi CAO JianTing | 2009 | Science in China(Series F)2009，52，4： | 10 |
| 4 | Adjustment of lipiodol dose according to tumor blood supply during transcatheter arterial chemoembolization for large hepatocellular carcinoma by multidetector helical CT显示文摘AIM: To work out an indMdualized lipiodol dose in transcabheter arterial chemoembolization (TACE) for large hepatocellular carcinoma (HCC) according to its blood supply evaluated by CT.METHODS: One hundred patients with large HCC (more than 8 cm in diameter) were studied by multidetector helical CT. Patterns of blood supply of HCC were divided into sufficient blood supply, poor blood supply, mixed blood supply and arteriovenous (A-V) shunt. The dose of ultrafluid lipiodol was determined by diameter and blood supply type of HCC. Patients were divided into two groups (50 cases each): lipiodol perfusion group and iodized oil perfusion group according to tumor diameter and the blood supply type of tumor.RESULTS: The confirmation and effective rates were 82%,84% in the first group and 36%, 46% in the second group (P<0.01).CONCLUSION: A relatively individualized lipiodol dose may be determined according to the blood supply pattern and the tumor diameter by CT imaging. | Hong-YanCheng YiShou XiangWang Ai-MinXu DongChen Yu-ChenJia | 2004 | World Journal of Gastroenterology2004，10，18： | 8 |
| 5 | Experimental research on Phanerochaete chrysosporium as coal microbial flocculant显示文摘The flocculation effect of the Phanerochaete chrysosporium on the coal slurry were studied by orthogonal experimental method in this study.The results of research show that the P.chrysosporium has a good effect on flocculating coal slurry.The optimum combination of the experimental is the P.chrysosporium,which is cultured in 2 days,mixed with 2 mL coagulant and 2 mL broth.The flocculant is a broken liquid with pH value of 6.The hightest flocculation ratio is 93.5%.The result of FTIR shows that the biological extraction of P.chrysosporium contains a lot of acidic polysaccharides that has the effect on flocculation.Microbial flocculant molecules and particles of coal slurry could be flocculated by‘‘absorption bridge’’. | Zhang Dongchen Hou Zhixiang Liu Zhiyong Wang Tao | 2013 | International Journal of Mining Science and Technology2013，23，4： | 8 |
| 6 | Effect of temperature on anoxic metabolism of nitrites to nitrous oxide by polyphosphate accumulating organisms显示文摘Temperature is an important physical factor, which strongly influences biomass and metabolic activity. In this study, the effects of temperature on the anoxic metabolism of nitrite(NO-2) to nitrous oxide(N2O) by polyphosphate accumulating organisms, and the process of the accumulation of N2O(during nitrite reduction), which acts as an electron acceptor, were investigated using 91% ± 4% Candidatus Accumulibacter phosphatis sludge. The results showed that N2O is accumulated when Accumulibacter first utilize nitrite instead of oxygen as the sole electron acceptor during the denitrifying phosphorus removal process. Properties such as nitrite reduction rate, phosphorus uptake rate, N2O reduction rate, and polyhydroxyalkanoate degradation rate were all influenced by temperature variation(over the range from 10 to 30°C reaching maximum values at 25°C). The reduction rate of N2O by N2O reductase was more sensitive to temperature when N2O was utilized as the sole electron acceptor instead of NO2, and the N2O reduction rates, ranging from 0.48 to 3.53 N2O-N/(hr·g VSS), increased to 1.45 to 8.60 mg N2O-N/(hr·g VSS). The kinetics processes for temperature variation of 10 to 30°C were(θ1 = 1.140–1.216 and θ2= 1.139–1.167). In the range of 10°C to 30°C, almost all of the anoxic stoichiometry was sensitive to temperature changes. In addition, a rise in N2O reduction activity leading to a decrease in N2O accumulation in long term operations at the optimal temperature(27°C calculated by the Arrhenius model). | Zhijia Miao Wei Zeng Shuying Wang Yongzhen Peng Guihua Cao Dongchen Weng Guisong Xue Qing Yang | 2014 | Journal of Environmental Sciences2014，26，2： | 7 |
| 7 | Support Vector Machines for Cloud Detection over Ice-Snow Areas显示文摘In polar regions, cloud and underlying ice-snow areas are difficult to distinguish in satellite images because of their high albedo in the visible band and low surface temperature of ice-snow areas in the infrared band. A cloud detection method over ice-snow covered areas in Antarctica is presented. On account of different texture features of cloud and ice-snow areas, five texture features are extracted based on GLCM. Nonlinear SVM is then used to obtain the optimal classification hyperplane from training data. The experiment results indicate that this algorithm performs well in cloud detection in Antarctica, especially for thin cirrus detection. Furthermore, when images are resampled to a quarter or 1/16 of the full size, cloud percentages are still at the same level, while the processing time decreases exponentially. | CHEN Gang E Dongchen | 2007 | Geo-Spatial Information Science2007，10，2： | 6 |
| 8 | Small molecular non-fullerene electron acceptors for P3HT-based bulk-heterojunction solar cells显示文摘Three small molecules with the same arms and different cores of perylene diimide(PDI)or indaceno[2,1-b:6,5-b']dithiophene(IDT)were designed and synthesized as the acceptor materials for P3HT-based bulk-heterojunction(BHJ)solar cells.The impacts of the different cores on the optical absorption,electrochemical properties,electron mobility,film morphology,photoluminescene characteristics,and solar cell performance were thoroughly studied.The three compounds possess a broad absorption covering the wavelength range of 400–700 nm and relatively low lowest unoccupied molecular orbital(LUMO)energy levels of?3.86,?3.81 and?3.99 eV.The highest power conversion efficiency of 0.82%was achieved for the BHJ solar cells based on SM3 as the acceptor material,the compound with a PDI core. | LIU Xin CAI Ping CHEN DongChen CHEN JunWu SU ShiJian CAO Yong | 2014 | Science China Chemistry2014，57，7： | 5 |
| 9 | Mass change study on Arctic glacier Pedersenbreen, during 1936-1990-2009显示文摘Pedersenbreen is a small polythermal valley glacier, located in Svalbard, which has been one of the two glaciers monitored by Chinese Arctic expedition members since 2004. This study estimates its area and volume and analyzes its change during 1936-1990-2009, using field collected GPS/GPR data in 2009 and historical topographic maps published by the Norwegian Polar Institute. We have found that Pedersenbreen is just like many other valley glaciers in Svalbard, having experienced a significant recession since the end of Little Ice Age in the early 20th century. The glacier tongue has retreated more than 0.6 km, while ice volume has decreased by approximately 13%. The overall thinning rate of Pedersenbreen has shown acceleration during the recent decades. Further analysis shows that the ice tongue in the downstream area of Pedersenbreen is melting at the highest rate, while a simultaneous accumulation occurred in the upstream. However, as global temperatures increase, the accumulation area is reducing year by year. | AI SongTao WANG ZeMin TAN Zhi E DongChen YAN Ming | 2013 | Chinese Science Bulletin2013，58，25： | 5 |
| 10 | Atorvastatin protects cardiomyocytes from oxidative stress by inhibiting LOX-1 expression and cardiomyocyte apoptosis显示文摘冠的动脉疾病(CAD ) 是世界范围的一个主要健康问题。CAD 的最严重的形式是急性冠的症候群(交流) 。最近的研究在交流表明了 atorvastatin 的有益的角色;然而,位于这效果下面的机制充分没被澄清。成长证据显示氧化低密度的脂蛋白 receptor-1 (LOX-1 ) 玩的象 lectin 一样的那激活在氧化导致压力的 cardiomyocyte apoptosis 的一个重要角色在交流期间。在这研究,我们检验了 atorvastatin 是否禁止 H 2 O 2-induced LOX-1 表示和 H9c2 cardiomyocyte apoptosis,并且调查了内在的发信号小径。有 H 2 O 2 导致了 LOX-1 mRNA 和蛋白质的提高的表示,以及增加了 caspase-3 和 -9 蛋白质表示和房间 apoptosis。H 2 O 2-induced LOX-1 表示, caspase 蛋白质表示,和 cardiomyocyte apoptosis 被预告的处理与 atorvastatin 稀释。Atorvastatin 激活 H 2 以一种集中依赖者方式的 Akt 的 O 2-inhibited phosphorylation。Akt 禁止者, LY294002,在导致 Akt phosphorylation 上并且在压制 H 2 O 2-mediated caspase 起来规定和房间 apoptosis。这些调查结果显示 atorvastatin 经由 LOX-1 的抑制保护 cardiomyocyte 免受氧化应力的伤害表示和 apoptosis,和 H 2 Akt 的 O 2-inhibited phosphorylation 可以在 atorvastatin 的保护的功能起一个重要作用。 | Lei Zhang Linfang Cheng Qiqi Wang Dongchen Zhou Zhigang Wu Ling Shen Li Zhang Jianhua Zhu | 2015 | Acta Biochimica et Biophysica Sinica2015，47，3： | 4 |
| 11 | Chlorine-anion doping induced multi-factor optimization in perovskites for boosting intrinsic oxygen evolution显示文摘The oxygen evolution reaction(OER) plays a crucial role in many electrochemical energy technologies,and creating multiple beneficial factors for OER catalysis is desirable for achieving high catalytic efficiency.Here,we highlight a new halogen-chlorine(Cl)-anion doping strategy to boost the OER activity of perovskite oxides.As a proof-of-concept,proper Cl doping at the oxygen site of LaFeO3(LFO) perovskite can induce multiple favorable characteristics for catalyzing the OER,including rich oxygen vacancies,increased electrical conductivity and enhanced Fe-O covalency.Benefiting from these factors,the LaFeO2.9-δCl0.1(LFOCl) perovskite displays significant intrinsic activity enhancement by a factor of around three relative to its parent LFO.This work uncovers the effect of Cl-anion doping in perovskites on promoting OER performance and paves a new way to design highly efficient electrocatalysts. | Yinlong Zhu Qian Lin Zhenbin Wang Dongchen Qi Yichun Yin Yu Liu Xiwang Zhang Zongping Shao Huanting Wang | 2021 | Journal of Energy Chemistry2021，30，1： | 2 |
| 12 | Integrated Wireless Communication System Using MANET for Remote Pastoral Areas of Tibet显示文摘To reduce the network deployment cost and provide voice, message and low rate data services in remote pastoral areas of Tibet effectively, an integrated wireless communication system utilizing MANET(Mobile Ad hoc Network) is proposed. The sparse mobile devices, assisted with the solar-powered multi-functional standing stations mainly on networking maintenance and routing arrangement, self-organize into a MANET. The topology of the standing stations is designed for networking robust and to simplify the routing method and energy strategy. Then in the OMNe T++(Objective Modular Network Test bed in C++) simulation, the energy consumption is analysis while adjusting routing with the different energy status of the standing stations. The result shows that the standing stations should adjust routing as well as control the mobile devices' activity level according to the energy states of the standing stations and their adjacent mobile devices. | HUANG Cao ZHOU Qing ZHANG Dongchen | 2016 | China Communications2016，13，4： | 2 |
| 13 | Advanced nitrogen removal with simultaneous Anammox and denitrification in sequencing batch reactor显示文摘 | Rui Du Yongzhen Peng Shenbin Cao Chengcheng Wu Dongchen Weng Shuying Wang Jianzhong He | 2014 | Bioresource Technology2014，，： | 2 |
| 14 | A heuristic algorithm for cube packing with time schedule显示文摘Packing problem has been proved to be an NP-hard problem. Many algorithms such as simulation annealing algorithm, genetic algorithm and other heuristic algorithms have been proposed to solve twodimensional and three-dimensional packing problem. To solve the cube packing problem with time schedule, this paper first introduces some concepts such as packing level, space distance and average neighbor birth order and then proposes a greedy algorithm. The algorithm tries every feasible corner greedily to calculate the space utilization, packing level, space distance, average neighbor birth order of this placement, and chooses the best placement according to these criteria. Theoretical analysis indicates that the time complexity of this algorithm is O(A2B2C2T 2n5). The experiments show that the average space utilization of non-guillotine cutting test cases is 98.81%, and the average space utilization of guillotine cutting test cases achieves 99.87%. Furthermore, optimal solutions of more than half cases are achieved by this algorithm. The experimental results show that this algorithm can solve the problem of cube packing with time schedule effectively and effciently. | LI Wei HUANG WenQi JIANG DongChen LIU XiangLong | 2010 | Science China(Information Sciences)2010，53，1： | 2 |
| 15 | Advanced nitrogen removal with simultaneous Anammox and denitrification in sequencing batch reactor显示文摘 | Rui Du Yongzhen Peng Shenbin Cao Chengcheng Wu Dongchen Weng Shuying Wang Jianzhong He | 2014 | Bioresource Technology2014，，： | 1 |
| 16 | Focusing on the major function‐oriented zone: A new spatial planning approach and practice in China and its 12th Five‐Year Plan 关注主体功能区——中国“十二五规划”新的空间规划探索与实践显示文摘 | JieFan 樊杰 WeiSun 孙威 ZhenshanYang 杨振山 PengFan 凡芃 DongChen 陈东 | 2012 | Asia Pacific Viewpoint2012，，1： | 1 |
| 17 | Ice velocity from static GPS observations along the transect from Zhongshan station to Dome A,East Antarctica显示文摘 | Zhang Shengkai E Dongchen Wang Zemin | 2008 | Annals of Glaciology2008，48，1： | 1 |
| 18 | Operando Converting BiOCl into Bi_(2)O_(2)(CO_(3))_(x)Cl_(y) for Efficient Electrocatalytic Reduction of Carbon Dioxide to Formate显示文摘Bismuth-based materials(e.g., metallic, oxides and subcarbonate) are emerged as promising electrocatalysts for converting CO_(2) to formate. However, Bio-based electrocatalysts possess high overpotentials, while bismuth oxides and subcarbonate encounter stability issues. This work is designated to exemplify that the operando synthesis can be an effective means to enhance the stability of electrocatalysts under operando CO_(2)RR conditions. A synthetic approach is developed to electrochemically convert Bi^(O)Cl into Cl-containing subcarbonate(Bi_(2)O_(2)(CO_(3))_(x)Cl_(y)) under operando CO_(2)RR conditions. The systematic operando spectroscopic studies depict that BiOCl is converted to Bi_(2)O_(2)(CO_(3))_(x)Cl_(y) via a cathodic potential-promoted anion-exchange process. The operando synthesizedBi_(2)O_(2)(CO_(3))_(x)Cl_(y) can tolerate-1.0 V versus RHE, while for the wet-chemistry synthesized pure Bi_(2)O_(2)CO_(3),the formation of metallic Bio occurs at-0.6 V versus RHE. At-0.8 V versus RHE, Bi_(2)O_(2)(CO_(3))_(x)Cl_(y) can readily attain a FEHCOO-of 97.9%,much higher than that of the pure Bi_(2)O_(2)CO_(3)(81.3%). DFT calculations indicate that differing from the pure Bi_(2)O_(2)CO_(3)-catalyzed CO_(2)RR, where formate is formed via a *OCHO intermediate step that requires a high energy input energy of 2.69 eV to proceed, the formation of H COO-over Bi_(2)O_(2)(CO_(3))_(x)Cl_(y) has proceeded via a *COOH intermediate step that only requires low energy input of 2.56 eV. | Huai Qin Fu Junxian Liu Nicholas M.Bedford Yun Wang Joshua Wright Peng Fei Liu Chun Fang Wen Liang Wang Huajie Yin Dongchen Qi Porun Liu Hua Gui Yang Huijun Zhao | 2022 | Nano-Micro Letters2022，14，7： | 1 |
| 19 | Progress in Chinese Antarctic geodetic remote sensing显示文摘This paper summarizes the progress of the Chinese Antarctic expedition in geodetic remote sensing. It describes the systems for continuous satellite navigation and positioning, and the tide gauges that have been established at the Zhongshan and Great Wall stations in Antarctica. Advances in the investigation of plate motion, the gravity field, and sea level change as well as the application of GPS in atmospheric studies are reported. Details of the movements of ice sheets and glaciers, distributions of blue ice and ice crevasses, and mass balance studies based on remote sensing techniques are presented. The use of field, satellite, and photogrammetric data to produce topographic maps is described. Finally, the prospects for further Antarctic surveying and mapping are discussed. In the near future, we will establish a high-precision geodetic datum in the Chinese Antarctic expedition areas, monitor changes of Antarctic snow and ice, and develop a platform for sharing Antarctic resource and environment information. | E Dongchen WANG Zemin ZHANG Shengkai | 2018 | Advances in Polar Science2018，29，2： | 1 |
| 20 | Water- shed-Based Hierarchical SAR Image Segmentation 显示文摘 | Wei L Gozeb B B He Dongchen | 1999 | Int J Remote Sensing1999，17，20： | 1 |
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