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Search Results: 1 - 10 of 44078 matches for " Jingyu Wu "
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Post-Acceleration Study for Neutrino Super-beam at CSNS
Yang Wu,Jingyu Tang
Physics , 2012, DOI: 10.1088/1674-1137/37/9/097002
Abstract: A post-acceleration system based on the accelerators at CSNS (China Spallation Neutron Source) is proposed to build a super-beam facility for neutrino physics. Two post-acceleration schemes, one using superconducting dipole magnets in the main ring and the other using room-temperature magnets have been studied, both to achieve the final proton energy of 128 GeV and the beam power of 4 MW by taking 10% of the CSNS beam from the neutron source. The main design features and the comparison for the two schemes are presented. The CSNS super-beam facility will be very competitive in long-baseline neutrino physics studies, compared with other super-beam facilities proposed in the world.
A LEACH-Head Expected Frequency Appraisal Algorithm for Water-Environment Monitoring Networks  [PDF]
Chenmin Li, Guoping Tan, Jingyu Wu, Zhen Zhang, Lizhong Xu
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2011, DOI: 10.4236/ijcns.2011.49067
Abstract: Water-environment monitoring network (WMN) is a wireless sensor network based real-time system, which collects, transmits, analyzes and processes water-environment parameters in large area. Both cluster selection mechanisms and energy saving strategies play an important role on designing network routing protocols for the WMN. Since those existing routing algorithms can not be used directly in the WMN, we thus propose an improved version of LEACH, a LEACH-Head Expected Frequency Appraisal (LEACH-HEFA) algorithm, for the WMN in this paper. Simulation results show that the LEACH-HEFA can balance the energy consumption of nodes, rationalize the clustering process and prolong the network lifetime significantly in the WMN. It indicates that the LEACH-HEFA is suitable to the WMN.
The Influence of Individual and Team Cognitive Ability on Operators’ Task and Safety Performance: A Multilevel Field Study in Nuclear Power Plants
Jingyu Zhang, Yongjuan Li, Changxu Wu
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0084528
Abstract: While much research has investigated the predictors of operators’ performance such as personality, attitudes and motivation in high-risk industries, its cognitive antecedents and boundary conditions have not been fully investigated. Based on a multilevel investigation of 312 nuclear power plant main control room operators from 50 shift teams, the present study investigated how general mental ability (GMA) at both individual and team level can influence task and safety performance. At the individual level, operators’ GMA was predictive of their task and safety performance and this trend became more significant as they accumulated more experience. At the team level, we found team GMA had positive influences on all three performance criteria. However, we also found a “big-fish-little-pond” effect insofar as team GMA had a relatively smaller effect and inhibited the contribution of individual GMA to workers’ extra-role behaviors (safety participation) compared to its clear beneficial influence on in-role behaviors (task performance and safety compliance). The possible mechanisms related to learning and social comparison processes are discussed.
Combined Sewer Overflows (CSOs) Impact on Water Quality and Environmental Ecosystem in the Harlem River  [PDF]
Jingyu Wang
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.513131
Abstract: The Harlem River, a 9.3-mile channel that flows from the Hudson River to the East River, has experienced decades of industrial abuse and remains gritty and industrial. During heavy rains, the pipes discharge raw sewage into the river through combined sewer overflows (CSOs) that can contain bacteria and cause illness. Water samples were collected from CSO discharge point and several adjacent sites along the river in the Bronx side close to River Park Towers at Richman Plaza and Manhattan side at Wards Island. Nutrients, bacteria, polychlorinated biphenyls (PCBs), and fish consumption safety have been analyzed. Results showed that phosphorus, ammonia concentration as well as fecal coliform, E.Coli, enterococcus levels increased significantly during heavy rainstorms. Ammonia concentration was up to 2.725 mg/L during tropical storm Arthur on July 2, 2014 and rainstorm in May 2013, and soluble reactive phosphorus (SRP) or orthophosphate was up to 0.197 mg/L during heavy thunderstorm in April 2011; both nutrients were exceeded EPA regulation for ammonia (0.23 mg/L) and phosphate (0.033 mg/L) for New York City (NYC) waters. The colonies of fecal coliform were more than 5 million MPN/100ml (most probable number per 100 ml) during tropical storm Arthur in July 2014 and heavy rainstorm in April 2014, and fecal coliform was more than 10,000 MPN/100ml during storm in July and November 2013; E.Coli reached more than 5000 MPN/100ml during tropical storm Arthur and storm in May 2013; enterococcus reached more than 10,000 MPN/100ml during tropical storm Arthur and heavy rainstorm in April 2014. These bacteria (pathogen) levels in the Harlem River were significantly higher than EPA standards (fecal coliform: 200 MPN/100ml, E.Coli: 126 MPN/100ml, enterococcus: 104 MPN/100ml), especially during rainstorm/tropical storm. Of particular significance, nutrients and bacteria were analyzed before and after Hurricane Sandy devastated NYC in late October 2012; results determined that bacteria and ammonia concentrations increased after this monumental storm, elucidating the environmental impact of large storm events. PCB 11 (3,3’-dichlorobiphenyl, C12H8Cl2), the high molecular weight (MW), an indicator of raw sewer and storm water runoff in the NYC harbor waters, is the major polychlorinated biphenyls (PCBs) in the Harlem River. PCBs are carcinogenic, which could bioaccumulate via food chain from fish and seafood, endangering public health. Oyster farming has been used to purify water and improve water quality in the river. CSOs and storm
College English Writing Teaching Design Based on Constructivist Mode  [PDF]
Jingyu Liu
Open Journal of Modern Linguistics (OJML) , 2015, DOI: 10.4236/ojml.2015.51004
Abstract: Constructivist theory, a key branch of cognitive psychology, is universally recognized as the theoretical basis for innovating traditional teaching. This paper attempts to apply constructivism to writing education, which will be used to help guide writing teaching design and class construction, in order to explore and discover a proper and student-tailored writing class teaching mode.
HSV-1 miR-H6 Inhibits HSV-1 Replication and IL-6 Expression in Human Corneal Epithelial Cells In Vitro
Fang Duan,Jingyu Liao,Qiang Huang,Yuhong Nie,Kaili Wu
Clinical and Developmental Immunology , 2012, DOI: 10.1155/2012/192791
Abstract: HSV-1 infection in the cornea could lead to blindness. The infected cell polypeptide 4 (ICP4) of herpes simplex virus 1 (HSV-1) is a regulator of viral transcription that is required for productive infection. It has been previously demonstrated that miR-H6 encoded from HSV-1 genome targets ICP4 to help maintain latency. In this study, synthesized miR-H6 mimics were transfected into HSV-1-infected human cornea epithelial (HCE) cells. The inhibition of HSV-1 replication and viral ICP4 expression in miR-H6-transfected HCE was confirmed by plaque assay, immunofluorescence, and Western blot. Compared to nontransfection or mock, miR-H6 produced a low-titer HSV-1 and weak ICP4 expression. In addition, miR-H6 can decrease the interleukin 6 released into the medium, which was determined by ELISA. Taken together, the data suggests that miR-H6 targeting of ICP4 inhibits HSV-1 productive infection and decreases interleukin 6 production in HCE, and this may provide an approach to prevent HSV-1 lytic infection and inhibit corneal inflammation.
Differences in lead isotopic fingerprints between blood, hair and organs in lead-poisoned rats
Jing Zeng,LaiLai Yan,Li Ouyang,Jing Wu,JingYu Wang
Chinese Science Bulletin , 2012, DOI: 10.1007/s11434-011-4953-6
Abstract: Lead isotopic ratios of biosamples such as blood, hair and teeth are used as “fingerprints” to trace and identify sources of lead pollution in the environment. However, the reliability of this technique has not been confirmed. In previous studies, we investigated the differences in lead isotopic ratios between blood, hair, and organs from the same human body. To explore the relationship between isotopic ratios in environmental lead and biosamples, and to investigate the influence of exposure dose, rats were exposed to 0, 30, 60, and 120 mg/kg body weight of lead acetate every day for 4 weeks by intragastric administration. Lead isotopic ratios of blood, hair, liver, kidney and femur in rats, as well as that of the test substance lead acetate, were measured using inductively coupled plasma mass spectrometry. There were significant differences (P<0.05) in lead isotopic fingerprints between blood, hair, and tissues. Lead fingerprints of blood were influenced by lead exposure dose, while those of other tissues and organs were generally not. Its reliability and availability indicated that blood, but not hair, was thus a suitable biomarker for environmental lead exposure. The results of this study provide the scientific rationale for the use of lead isotopic ratios for the identification of human lead pollution sources.
A New Road Segmentation Method Based on Evidential Fused Data
基于融合信息的道路分割方法

Wu Yongge,Yang Jingyu,
邬永革
,杨静宇

自动化学报 , 1996,
Abstract: 基于融合信息的道路分割方法邬永革,杨静宇(南京理工大学计算机系南京210014)关键词:证据理论;信息融合;属性金字塔;道路分割l引言道路分割技术是室外机器人视觉系统实现道路跟踪的基础.本文提出的基于融合信息的道路分割技术利用DemPster.Sha...
(1S,4S)-2-(2,4-Difluorophenyl)-5-[(4-methylphenyl)sulfonyl]-2,5-diazabicyclo[2.2.1]heptane
Chunli Wu,Jingyu Zhang,Pan Li,Junxia Zhang
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536810054541
Abstract: In the title molecule, C18H18F2N2O2S, the two benzene rings, which are oriented in opposite directions with respect to the rigid 2,5-diazabicyclo[2.2.1]heptane core, form a dihedral angle of 17.2 (1)°. Weak intermolecular C—H...O, C—H...F and C—H...N contacts consolidate the crystal packing.
Connection Stability Analyze Based on LEACH Algorithm for Mobile Ad Hoc Network
Xuejun Wu,Minghua Zhou,Limin Meng,Jingyu Hua
Information Technology Journal , 2010,
Abstract: The invulnerability of mobile ad hoc network is very important to the routing protocol. This study presents a mathematically tractable model of node motion to derive a precise relationship between mobility and connection stability. We improve the first order energy consumption model with dynamic clustering first and then build an incidence matrix to depict the connectivity of the network nodes in a dynamic network model. Finally, this study simulates the network invulnerability related to time. As a result, it validates the high invulnerability of the dynamic clustering ad hoc networks.
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