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Effect of UV-B radiation on the feeding behavior of the rotifer Brachionus plicatilis

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Acta Oceanologica Sinica 2007年第4期26卷 82-92页

作者： FENG Lei LI Xin WANG Jinhe han honglei TANG Xuexi CHEN Xiguang Department of Agricultural Engineering Dongying Vocational College Dongying 257091 China Marine Life College Ocean University of China Qingdao 266003 China Information Engineering College of Zhengzhou Zhengzhou 450001 China Dongying City Ocean and Fishery Bureau Dongying 257091 China

Effect of UV - B radiation on the feeding behaviour of marine zooplankton is important to assessing the health harm of marine ecosystem due to the gradually enhanced UV - B radiation in air. However, there are a few studies on this topic. The feeding behavior of the rotifer, Brachionus plicatilis, under the treatment of UV - B radiation on five species of microalgae, i. e. , Chlorella sp. , Tetraselmis chuii, Isochrysis galbana Park 8701, Chaetoceros muelleri Lermumerman, and Nitzschia clostertum, was studied. The results showed that the filtering and feeding rates of the rotifer decreased significantly with the dose increase of UV - B radiation when fed with five species of microalgae respectively （ P 〈 0.05 ） which indicates UV - B radiation inhibits the feeding activities of the rotifer on microalage. The mixed culture experiments shows the rotifer preferred to feed Chlorella sp. , then C. muelleri, L galbana, N. clostertum and T. chuii in turn if without UV - B radiation. Under the highest dose of UV - B radiation treatment （2.70 kJ/m^2）, the rotifer preferred to feed C. muelleri, then Chlorella sp. , N. clostertum, L galbana and T. chuii in turn. Chlorella sp. , L galbana and C. muelleri became the more favorite foods of the rotifer while T. chuii and N. clostertum became less favorite foods. The change of feeding rate and feeding selectivity of zooplankton driven by the enhanced UV - B radiation will lead to the change in the structure of phytoplankton community.

关键词： UV - B radiation feeding microalgae rotifer Brachionus plicatilis

Task Graph Reduction Algorithm for Hardware/Software Partitioning

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Wuhan University Journal of Natural Sciences 2012年第2期17卷 126-130页

作者： LI Hui LIU Wenjui WU Jigang JIANG Guiyuan han honglei School of Computer Science and Software Tianjin Polytechnic University Tianjin 300387 China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China

Hardware/software（HW/SW） partitioning is one of the key processes in an embedded *** is used to determine which system components are assigned to hardware and which are processed by *** contrast with previous research that focuses on developing efficient heuristic,we focus on the pre-process of the task graph before the HW/SW partitioning in this paper,that is,enumerating all the sub-graphs that meet the *** results showed that the original graph can be reduced to 67% in the worst-case scenario and 58% in the best-case *** conclusion,the reduced task graph saved hardware area while improving partitioning speed and accuracy.

关键词： HW/SW partitioning task graph algorithm embedded system

Phenomenology of heavy neutral gauge boson at muon collider

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Science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 60-79页

作者： Zongyang Lu honglei Li Zhi-Long han Zong-Guo Si Liuxin Zhao School of Physics and Technology University of JinanJinan 250022China School of Physics Shandong UniversityJinan 250100China

Heavy neutral gauge boson Z' is proposed in many new physics *** has rich phenomena at the future muon *** study the properties of Z' boson with the process of μ^(+)μ^(-)→qq,μ^(+)μ^(-)→l^(+)l^(-),μ^(+)μ^(-)→ ZH and μ^(+)μ^(-)→ W^(+)W^(-).The discrepancy of Z' coupling to different types of particles can be shown in the cross section distributions around the resonance peak of various decay *** distributions of the final quark or lepton in μ^(+)μ^(-)→qq/l^(+)l^(-)process are sensitive to the parameters such as mass of Z' and the Z-Z' mixing *** interaction of new gauge boson coupling to the standard model gauge particles and Higgs boson are also studied through μ^(+)μ^(-)→ ZH→l^(+)l^(-)bb and μ^(+)u^(-)→ W^(+)W^(-)→l^(+)l^(-)v_(l)v_(l).The cross section and the final particles' angular distributions with the contribution of Z' boson differ from those processes with only standard model particles.A forward-backward asymmetry defined by the angular distribution is provided to show the potential of searching for new physics at the muon ***,the beam polarization with certain value can effectively enlarge the forward-backward asymmetry.

关键词： Z′boson muon collider new physics

Rationally construction of atomic-precise interfacial charge transfer channel and strong build-in electric field in nanocluster-based Zscheme heterojunctions with enhanced photocatalytic hydrogen production

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Nano Research 2024年第6期17卷 5002-5010页

作者： Qingtao Zhu honglei Shen Chao han Liu Huang Yanting Zhou Yuanxin Du Xi Kang Manzhou Zhu Department of Materials Science and Engineering Centre for Atomic Engineering of Advanced MaterialsKey Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationKey Laboratory of Functional Inorganic Material Chemistry of Anhui ProvinceAnhui UniversityHefei 230601China

The lack of effective charge transfer driving force and channel limits the electron directional migration in nanoclusters(NC)-based heterostructures,resulting in poor photocatalytic ***,a Z-scheme NC-based heterojunction(Pt1Ag28-BTT/CoP,BTT=1,3,5-benzenetrithiol)with strong internal electric field is constructed via interfacial Co-S bond,which exhibits an absolutely superiority in photocatalytic performance with 24.89 mmol·h^(−1)·g−1 H_(2)production rate,25.77%apparent quantum yield at 420 nm,and~100%activity retention in stability,compared with Pt1Ag28-BDT/CoP(BDT=1,3-benzenedithiol),Ag29-BDT/CoP,and *** enhanced catalytic performance is contributed by the dual modulation strategy of inner core and outer shell of NC,wherein,the center Pt single atom doping regulates the band structure of NC to match well with CoP,builds internal electric field,and then drives photogenerated electrons steering;the accurate surface S modification promotes the formation of Co-S atomic-precise interface channel for further high-efficient Z-scheme charge directional *** work opens a new avenue for designing NC-based heterojunction with matchable band structure and valid interfacial charge transfer.

关键词： atomically precise metal nanocluster Z-scheme heterojunction interfacial charge transfer build-in electric field photocatalytic hydrogen production

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光栅化时的线性纹理插值

计算机辅助设计与图形学学报 2011年第6期23卷 999-1005页

作者：韩红雷王文成中国科学院软件研究所计算机科学国家重点实验室北京100190 中国科学院研究生院北京100049 中国传媒大学动画学院游戏设计系北京100024

针对扫描转换多边形时,逐像素计算准确的纹理坐标需要用到除法运算,效率较低的问题,提出一种使用线性插值代替除法运算的纹理坐标计算方法.该方法以与屏幕平行的平面切割多边形形成的线段来对多边形进行光栅化,可以线性插值的方式实现... 详细信息

针对扫描转换多边形时,逐像素计算准确的纹理坐标需要用到除法运算,效率较低的问题,提出一种使用线性插值代替除法运算的纹理坐标计算方法.该方法以与屏幕平行的平面切割多边形形成的线段来对多边形进行光栅化,可以线性插值的方式实现纹理坐标在透视投影下的正确计算,消除了一般光栅化计算中所需要的除法运算;对于离散化所引起的插值误差,通过增加误差修正操作进行改进.实验结果表明,采用文中方法能较好地提高计算效率,并得到计算精度很高的纹理坐标.

关键词：栅格化扫描转换纹理坐标插值透视投影

Graph Reduction Algorithm for Hardware/Software Partitioning

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Graph Reduction Algorithm for Hardware/Software Partitioning

2011 International Conference on Control, Automation and Systems Engineering(CASE)

作者： Hui Li Wenju Liu honglei han Computer Science and Software Institution Tianjin Polytechnic University

One of the most crucial steps in the design of embedded systems is Hardware/Software(HW/SW) partitioning, that is, deciding which components of the system should be implemented in hardware and which ones in software. Most formulations of the HW/SW partitioning problem are NP-hard, so most of the research efforts on HW/SW partitioning has focused on developing efficient heuristic. In this paper, we did not committed to finding effective methods of HW/SW partitioning, but focusing on the pre-process for the task graph before the HW/SW partitioning, and to find all the sub-graphs which meet the requirements. Simplification of the original task graph, so that the partitioning will be more accurately and faster, and it also can save the hardware area effectively.

关键词： HW/SW partitioning task graph pre-process sub-graph

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结合视觉感知与信息量的视点评分方法

计算机辅助设计与图形学学报 2014年第6期26卷 939-947页

作者：韩红雷李静费广正中国科学院软件研究所计算机科学国家重点实验室北京100190 中国科学院大学北京100049 中国传媒大学动画与数字艺术学院北京100024

随着数字3D内容的不断丰富,对其进行有效展示和索引的需求变得十分迫切,而通过视点评分选择合适的观察视点对解决这一问题具有重要的作用.针对传统的视点评分方法计算时间冗长、结果很难符合人类观察习惯的问题,提出一种基于视觉感知信... 详细信息

随着数字3D内容的不断丰富,对其进行有效展示和索引的需求变得十分迫切,而通过视点评分选择合适的观察视点对解决这一问题具有重要的作用.针对传统的视点评分方法计算时间冗长、结果很难符合人类观察习惯的问题,提出一种基于视觉感知信息量的快速视点评分方法.首先计算相对简单的平均曲率作为代表3D物体视觉特征的要素,随后结合信息熵理论对视点进行评分,使那些能看到尽可能多重要特征且所见特征分布较广的视点分数较高;之后,将这种评分策略应用于最优视点集计算中,利用信息理论对视点集获取信息进行量化,确保利用最少数目的视点有效地认知3D物体.实验结果表明,该方法得到的视点分数及最优视点集质量与目前最好的方法相当,但计算速度更快,无需人工交互.

关键词：视点选择摄像机控制视觉感知最优视点集信息熵

Graph Reduction Algorithm for Hardware/Software Partitioning

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Graph Reduction Algorithm for Hardware/Software Partitioning

2011 2nd Asia-Pacific Conference on Wearable Computing Systems (APWCS 2011);2011 International Conference on Intelligent Control and Information Technology(ICICIT 2011)

作者： Hui Li Wenju Liu honglei han Computer Science and Software Institution Tianjin Polytechnic University

One of the most crucial steps in the design of embedded systems is Hardware/Software（HW/SW） partitioning,that is,deciding which components of the system should be implemented in hardware and which ones in *** formulations of the HW/SW partitioning problem are NP-hard,so most of the research efforts on HW/SW partitioning has focused on developing efficient *** this paper,we did not committed to finding effective methods of HW/SW partitioning,but focusing on the pre-process for the task graph before the HW/SW partitioning,and to find all the sub-graphs which meet the *** of the original task graph,so that the partitioning will be more accurately and faster,and it also can save the hardware area effectively.

关键词： HW/SW partitioning task graph pre-process sub-graph

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面向移动设备的远程渲染技术综述

计算机辅助设计与图形学学报 2016年第6期28卷 913-923页

作者：徐婵婵费广正韩红雷中国传媒大学动画与数字艺术学院北京100024

移动设备以其轻便、便携、易联网等特点成为人们生活的主宰并极大的影响着人们的生活方式,却因其内存、硬件处理能力、分辨率、电池续航等方面的弱势限制了移动应用程序的开发和普及.因而,面向这些移动设备的远程渲染技术是计算机图形... 详细信息

移动设备以其轻便、便携、易联网等特点成为人们生活的主宰并极大的影响着人们的生活方式,却因其内存、硬件处理能力、分辨率、电池续航等方面的弱势限制了移动应用程序的开发和普及.因而,面向这些移动设备的远程渲染技术是计算机图形学领域的一个热门研究课题,具有很大研究意义的同时也极具挑战性.文中回顾了远程渲染技术的研究进展,对其关键技术以及应用进行概括和对比分析,最后对未来工作中的研究难点和发展趋势进行了展望.

关键词：移动设备远程渲染技术云游戏图像变形