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| 1 | An environmental flow assessment method based on the relationships between flow and ecological response: A case study of the Three Gorges Reservoir and its downstream reach显示文摘The current environmental flow assessment of Chinese rivers is thought to have three shortcomings: The first is that environmental flow requirements of reservoirs in dammed rivers are usually not explicitly considered; the second is that enough attentions have not been paid to the inherent links between flow regime and ecological processes; the third is that most studies focus on the variable range of merely one hydrological element such as discharge needed by riverine ecosystems. Here, first proposed is a holistic method for environmental flow assessment, the flow-ecological response relationship method that is suitable for large rivers with relatively abundant ecological data. Based on the conceptual models and quantitative relationships between flow and ecological response, this method comprehensively considers the ecological conservation requirements of both reservoir and its downstream reach. Then, it is applied to assessing the environmental flows of the Three Gorges Reservoir and its downstream reach by the following steps: 1) Construction of conceptual models of flow-ecological response; 2) identification of ecological targets of environmental flows and their key periods; 3) development of the quantitative relationships between hydrological indicators and ecological indictors; 4) preliminary assessment of environmental flow according to the tradeoff between ecological targets and water demands of human. The environmental flow hydrographs obtained have explicit ecological conservation targets, time schedule of achieving each target, and characteristics of multiple hydrological elements such as flow, water level, frequency, timing, duration and rate of change. The case study has tested the reasonability and feasibility of this method, and the results of this study are expected to provide technical support and decision reference for improving the operation of the Three Gorges-Gezhouba cascade reservoirs. | WANG JunNa DONG ZheRen LIAO WenGen LI Chong FENG ShunXin LUO HuiHuang PENG QiDong | 2013 | Science China(Technological Sciences)2013，56，6： | 16 |
| 2 | Thermal protection mechanism of heat pipe in leading edge under hypersonic conditions显示文摘Sharp local structure, like the leading edge of hypersonic aircraft, confronts a severe aerodynamic heating environment at a Mach number greater than 5. To eliminate the danger of a material failure, a semi-active thermal protection system is proposed by integrating a metallic heat pipe into the structure of the leading edge. An analytical heat-balance model is established from traditional aerodynamic theories, and then thermal and mechanical characteristics of the structure are studied at Mach number 6–8 for three refractory alloys, Inconel 625, C-103, and T-111. The feasibility of this simple analytical method as an initial design tool for hypersonic aircraft is assessed through numerical simulations using a finite element method. The results indicate that both the isothermal and the maximum temperatures fall but the von Mises stress increases with a longer design length of the leading edge. These two temperatures and the stress rise remarkably at a higher Mach number. Under all investigated hypersonic conditions, with a 3 mm leading edge radius and a0.15 m design length, the maximum stress exceeds the yield strength of Inconel 625 at Mach numbers greater than 6, which means a material failure. Moreover, both C-103 and T-111 meet all requirements at Mach number 6–8. | Peng Wengen He Yurong Wang Xinzhi Zhu Jiaqi Han Jiecai | 2015 | Chinese Journal of Aeronautics2015，28，1： | 7 |
| 3 | Temperature and velocity dependent friction of a microscale graphite-DLC heterostructure显示文摘One of the promising approaches to achieving large scale superlubricity is the use of junctions between existing ultra-flat surface together with superlubric graphite mesas.Here we studied the frictional properties of microscale graphite mesa sliding on the diamond-like carbon,a commercially available material with a ultra-flat surface.The interface is composed of a single crystalline graphene and a diamond-like carbon surface with roughness less than I nm.Using an integrated approach,which includes Argon plasma irradiation of diamond-like carbon surfaces,X-ray photoelectron spectroscopy analysis and Langmuir adsorption modeling,we found that while the velocity dependence of friction follows a thermally activated sliding mechanism,its temperature dependence is due to the desorption of chemical groups upon heating.These observations indicate that the edges have a significant contribution to the friction.Our results highlight potential factors affecting this type of emerging friction junctions and provide a novel approach for tuning their friction properties through ion irradiation. | Yujie GONGYANG Wengen OUYANG Cangyu QU Michael URBAKH Baogang QUAN Ming MA Quanshui ZHENG | 2020 | Friction2020，8，2： | 5 |
| 4 | Energy corrugation in atomic-scale friction on graphite revisited by molecular dynamics simulations显示文摘Although atomic stick–slip friction has been extensively studied since its first demonstration on graphite,the physical understanding of this dissipation-dominated phenomenon is still very limited. In this work, we perform molecular dynamics(MD) simulations to study the frictional behavior of a diamond tip sliding over a graphite surface. In contrast to the common wisdom, our MD results suggest that the energy barrier associated lateral sliding(known as energy corrugation) comes not only from interaction between the tip and the top layer of graphite but also from interactions among the deformed atomic layers of graphite. Due to the competition of these two subentries, friction on graphite can be tuned by controlling the relative adhesion of different interfaces.For relatively low tip-graphite adhesion, friction behaves normally and increases with increasing normal load. However,for relatively high tip-graphite adhesion, friction increases unusually with decreasing normal load leading to an effectively negative coefficient of friction, which is consistent with the recent experimental observations on chemically modified graphite. Our results provide a new insight into the physical origins of energy corrugation in atomic scale friction. | Xiao-Yu Sun Yi-Zhou Qi Wengen Ouyang Xi-Qiao Feng Qunyang Li | 2016 | Acta Mechanica Sinica2016，32，4： | 3 |
| 5 | A stable oxygen evolution splitting electrocatalysts high entropy alloy FeCoNiMnMo in simulated seawater显示文摘Stabilizing anode for oxygen evolution(OER)in chlorine-containing electrolytes is a significant challenge.Adding corrosion inhibitors in electrolytes can alleviate this problem,but the type and dosage of cor-rosion inhibitors need a lot of exploration,and side reactions may occur to reduce current efficiency.Herein,we prepared a FeCoNiMnMo High entropy alloy(HEA)electrode for OER in simulated seawa-ter without corrosion inhibitors.It exhibits great electrocatalytic activity(overpotential(η)=237 mV at 10 mA cm^(-2))and excellent stability(200 h at 100 mA cm^(-2)).Experiments and Density Functional The-ory(DFT)calculation show that the protective layer containing K_(2)MoO_(4)is the crucial factor for chlorine resistance of FeCoNiMnMo electrode.The tightly adsorbed state of Cl-and K_(2)MoO_(4)ensures that other oxides are not corroded.And the externally added K_(2)MoO_(4)cannot protect the electrode.In addition,the high-entropy effect of HEA reduces the dissolution of the alloy.This work provides an efficient way to prepare a noble-free HEA catalyst that can stabilize oxygen evolution in corrosive electrolytes. | Peng Li Yuanpeng Yao Wengen Ouyang Ze Liu Huayi Yin Dihua Wang | 2023 | Journal of Materials Science & Technology2023，，7： | 2 |
| 6 | Divergent role for TNF-alpha in IFN-gamma-induced killing of Tozoplasma gondii and salmonella typhimurium contributes to selective susceptibility of patients with partial IFN-gamma receptor 1 deficiency J显示文摘 | Janssen R Van Wengen A Verhard E | 2002 | J Immunol2002，169，7： | 1 |
| 7 | Radiolabeled glucagon-like peptide-1 analogues: a new pancreatic β-cell imaging agent显示文摘 | Yifan Zhang Wengen Chen | 2012 | Nuclear Medicine Communications2012，，3： | 1 |
| 8 | Measurements of the stapes superstructure显示文摘 | Wengen DF Nishihara S Kurokawa H | 1995 | Ann Otol Rhinol Laryngol1995，104，4： | 1 |
| 9 | Identification of key taste components in Baccaurea ramiflora Lour.fruit using non-targeted metabolomics显示文摘Among the numerous fruit species of Baccaurea ramiflora Lour.,‘LR’(white flesh)and‘BR’(pink flesh)are two kinds of local strains with high edibility.In order to study the metabolic causes of taste differences,we performed the non-targeted metabonomics analysis of‘LR’and‘BR’using LC-MS/MS.541 metabolites were totally identified,and 45 kinds of metabolites(carbohydrates,fatty acids,flavonoids and terpenoids,etc.)were different between the two strains.The results indicate L-sorbose,D-(+)-glucose,citric acid,L-phenylalanine and oleamide,α-eleostearic acid were the main primary metabolites.The significant difference existed in pathways of unsaturated fatty acids between the studied two strains by pathway enrichment analysis.The results demonstrate that the different in composition,as well as the abundance of primary and secondary metabolites may be the potential causes of taste differences,which provides a new insight into the possible metabolic factors setting off the changing taste of B.ramiflora. | Jie Chen Fengnian Wu Huachen Wang Chunce Guo Wengen Zhang Peisi Luo Jing Zhou Wenwen Hao Guangyao Yang Jianjian Huang | 2023 | Food Science and Human Wellness2023，12，1： | 1 |
| 10 | Spatial-Temporal [ 18 F]FDG-PET Features for Predicting Pathologic Response of Esophageal Cancer to Neoadjuvant Chemoradiation Therapy显示文摘 | Shan Tan Seth Kligerman Wengen Chen Minh Lu Grace Kim Steven Feigenberg Warren D. D’Souza Mohan Suntharalingam Wei Lu | 2012 | International Journal of Radiation Oncology Biology Physics2012，，： | 1 |
| 11 | Long-term assessment after implantation of the vibrant soundbridge device显示文摘 | SCHMUZIGER N SCHIMMANN F WENGEN D | 2006 | Otol Neurotol2006，27，： | 1 |
| 12 | Disseminated Mycobacterium genavense infection in a patient with a novel partial interleukin-12/23 receptor 显示文摘 | Potjewijd J de Paus RA van Wengen A | 2012 | Clin Immunol2012，144，2： | 1 |
| 13 | The airway endoscopy mask:useful device for fibreoptic evaluation and intubation of the paediatric airway显示文摘 | Frei F Wengen DF Rutishauser M | 1995 | Paediatr Anaesth1995，5，： | 1 |
| 14 | Mechanism of the interaction between bromophenol blue and bovine serum albumin显示文摘 | Cao Wengen Jiao Qingcai Fu Yu | 2003 | Spectroscopy letters2003，36，3： | 1 |
| 15 | Spatial and temporal variability of daily precipitation concentration in the Lancang River basin, China显示文摘 | Wanli Shi Xuezhong Yu Wengen Liao Ying Wang Baozhen Jia | 2013 | Journal of Hydrology2013，，： | 1 |
| 16 | Divergent role for TNF-alpha in IFN-gamma-indueed killing of Toxoplasma gondii and Salmonella typhimufiumeontfibutes to selective susceptibility of patients with partial IFN-gamma receptor 1 deficiency 显示文摘 | Janssen R Van Wengen A Verhard E | 2002 | J Immunol2002，169，： | 1 |
| 17 | A novel mutation in NCF1 in an adult CGD patient with a liver abscess as first presentation 显示文摘 | van de Vosse E van Wengen A van Geelen J A | 2009 | J Hum Genet2009，54，6： | 1 |
| 18 | Divergent role for TNF-alpha in IFN-gamma-induced killing of Toxoplasma gondii and Salmonella typhimurium contributes to selective susceptibility of patients with partial IFN-gamma receptor 1 deficiency显示文摘 | Janssen R Van Wengen A Verhard E | | 0，，07： | 1 |
| 19 | Staphylococcus hyicus exfoliative toxin: Purification and demonstration of antigenic diversity among toxins from virulent strains 显示文摘 | Andresen L O Bille Hansen V Wengener H C | 1997 | Microbial Pathogenesis1997，22，： | 1 |
| 20 | Divergent role for TNF-alpha in IFN-gamma-induced killing of Toxoplasma gondii and Salmonella typhimurium contributes to selective susceptibility of patients with partial IFN-γ receptor 1 deficiency显示文摘 | Janssen R Van Wengen A Verhard E | 2002 | J Immunol2002，169，7： | 1 |
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