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Variation of the coastal upwelling off South Java and their impact on local fishery resources
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作者 Chunlong WEN Zhenyan WANG +4 位作者 Jing WANG Hongchun LI Xingyu SHI Wei GAO Haijun HUANG 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2023年第4期1389-1404,共16页
There is a vast upwelling area induced by the southeast monsoon in the waters off South Java,making the region an important fishing ground.Climate events can affect the variation of upwelling,but oceanographers have d... There is a vast upwelling area induced by the southeast monsoon in the waters off South Java,making the region an important fishing ground.Climate events can affect the variation of upwelling,but oceanographers have different understandings on the extent to which climate events control upwelling in this area,which leads to a lack of basis for studies on the evaluation and mechanisms of the variability of fishery resources in the region.The correlation between environmental parameters,including surface temperature(SST),chlorophyll-a(Chl-a)concentration,and climate event indices in South Java from 2003 to 2020 was analyzed.Results show that the Indian Ocean Dipole(IOD)has a greater influence on the interannual variability of upwelling intensity than ENSO.During the IOD,variations in equatorial latitudinal winds excite different types of Kelvin waves that anomalously deepen or shallow the thermocline,which is the main cause of anomalous variations in upwelling,independent of variations in the local wind field.A correlation between the interannual variability in upwelling and the annual catches was revealed,showing that climatic events indirectly affect fishery resources through upwelling effects.During positive IOD/El Niño periods,strong upwelling delivers more nutrients to the surface layer,which favors fish growth and reproduction,resulting in higher annual catches.A negative IOD/La Niña,on the other hand,leads to weaker upwelling and fewer nutrients into the surface waters.Fish tend to move in deeper waters,making traditional fishing methods less efficient and consequently lower annual catches. 展开更多
关键词 South Java El Niño/La Niña-Southern oscillation(ENSo) Indian ocean Dipole(IoD) fishery resources UPWELLING
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New approach to eliminate structural redundancy in case resource pools using α mutual information 被引量:6
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作者 Man Xu Haiyan Yu Jiang Shen 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2013年第4期625-633,共9页
Structural redundancy elimination in case resource pools (CRP) is critical for avoiding performance bottlenecks and maintaining robust decision capabilities in cloud computing services. For these purposes, this pape... Structural redundancy elimination in case resource pools (CRP) is critical for avoiding performance bottlenecks and maintaining robust decision capabilities in cloud computing services. For these purposes, this paper proposes a novel approach to ensure redundancy elimination of a reasoning system in CRP. By using α entropy and mutual information, functional measures to eliminate redundancy of a system are developed with respect to a set of outputs. These measures help to distinguish both the optimal feature and the relations among the nodes in reasoning networks from the redundant ones with the elimination criterion. Based on the optimal feature and its harmonic weight, a model for knowledge reasoning in CRP (CRPKR) is built to complete the task of query matching, and the missing values are estimated with Bayesian networks. Moreover, the robustness of decisions is verified through parameter analyses. This approach is validated by the simulation with benchmark data sets using cloud SQL. Compared with several state-of-the-art techniques, the results show that the proposed approach has a good performance and boosts the robustness of decisions. 展开更多
关键词 case resource pool (CRP) knowledge reasoning redundancy elimination α mutual information robust decision.
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Collective Action in Common Pool Resource Management, Including Heterogeneity of Opportunities and Exit Options 被引量:1
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作者 Pilar Useche 《Natural Resources》 2013年第8期483-489,共7页
The mechanism through which exit options and outside opportunities affect cooperation outcomes has not been well studied in the resource management literature, since a deep analysis of the concepts of “exit options”... The mechanism through which exit options and outside opportunities affect cooperation outcomes has not been well studied in the resource management literature, since a deep analysis of the concepts of “exit options” and “outside opportunities” is missing. This article analyzes these concepts across the common pool resource management literature, investigates the factors that underlie “opting out” decisions, and reviews potential ways to operationalize these concepts for empirical analysis. It also explores how the relationship of cooperation and exit options may be influenced by broad economic processes, such as economic integration. 展开更多
关键词 Natural resource Management CoLLECTIVE Action CoMMoN pool resources Environmental ECoNoMICS Economic Development
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Resource Reconstruction Algorithms for On-demand Allocation in Virtual Computing Resource Pool
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作者 Xiao-Jun Chen Jing Zhang +1 位作者 Jun-Huai Li Xiang Li 《International Journal of Automation and computing》 EI 2012年第2期142-154,共13页
Resource reconstruction algorithms are studied in this paper to solve the problem of resource on-demand allocation and improve the efficiency of resource utilization in virtual computing resource pool. Based on the id... Resource reconstruction algorithms are studied in this paper to solve the problem of resource on-demand allocation and improve the efficiency of resource utilization in virtual computing resource pool. Based on the idea of resource virtualization and the analysis of the resource status transition, the resource allocation process and the necessity of resource reconstruction are presented, l^esource reconstruction algorithms are designed to determine the resource reconstruction types, and it is shown that they can achieve the goal of resource on-demand allocation through three methodologies: resource combination, resource split, and resource random adjustment. The effects that the resource users have on the resource reconstruction results, the deviation between resources and requirements, and the uniformity of resource distribution are studied by three experiments. The experiments show that resource reconstruction has a close relationship with resource requirements, but it is not the same with current distribution of resources. The algorithms can complete the resource adjustment with a lower cost and form the logic resources to match the demands of resource users easily. 展开更多
关键词 Virtual computing systems virtual computing resource pool resource allocation resource reconstruction status tran-sition resource combination resource split resource adjustment.
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On the Need to Integrate Traditional Chinese and Western Medicine, and Pool Research Resources
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作者 Chen ZhuVice-president of the Chinese Academy of Sciences 《Bulletin of the Chinese Academy of Sciences》 2001年第1期21-22,共2页
The Chinese Academy of Sci-ences (CAS) is implementing theknowledge innovation program(KIP) on a trial basis. In my opinion,our knowledge innovation targetsshould be first of all precise and,secondly, able to boost ou... The Chinese Academy of Sci-ences (CAS) is implementing theknowledge innovation program(KIP) on a trial basis. In my opinion,our knowledge innovation targetsshould be first of all precise and,secondly, able to boost our work. Ispecialize in hematology and mo-lecular biology. Under the 展开更多
关键词 CAS on the Need to Integrate Traditional Chinese and Western Medicine and pool Research resources KIP
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RAPD analysis for genetic diversity of germplasm resources of <i>Strobilanthes</i> 被引量:1
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作者 Shuju Ning Yingjiao Zhang +3 位作者 Renlei Zhu Lanfang Zhu Jianyong Lin Daozhi Wei 《Agricultural Sciences》 2012年第3期400-404,共5页
The 18 samples representing 18 populations of Strobilanthes cusia (Nees) O. Ktze in Fujian Province of China were analyzed with RAPD markers. Eleven primers were used, a total of 106 bands were scored and 88 of them w... The 18 samples representing 18 populations of Strobilanthes cusia (Nees) O. Ktze in Fujian Province of China were analyzed with RAPD markers. Eleven primers were used, a total of 106 bands were scored and 88 of them were polymorphic. The percentage of polymorphic loci was 77.36%, Nei’s gene diversity was 0.2420, and Shannon’s index was 0.3700. The 18 populations were classified into 2 groups based on the RAPD data by the method of hierarchical cluster analysis. Most of the populations from Fujian were clustered into a group, other populations were clustered into the other group. There was a high level of genetic diversity among the populations, and the genetic differentiation was obvious among the populations from Fujian. 展开更多
关键词 STRoBILANTHES cusia (Nees) o. Ktze RAPD GERMPLASM resources Genetic Diversity
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基于OpenVPX标准的异构融合处理模块软硬件协同设计研究
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作者 文敏华 石添介 田径 《弹箭与制导学报》 北大核心 2024年第3期103-108,共6页
随着计算机软硬件技术的持续进步,机载计算平台集成的任务功能日益增多,导致平台内部的计算需求在规模和复杂性上不断攀升。面对智能化应用的迅猛增长,传统的单一处理器架构已不足以应对多样化的复杂任务。为此,基于OpenVPX标准,定义并... 随着计算机软硬件技术的持续进步,机载计算平台集成的任务功能日益增多,导致平台内部的计算需求在规模和复杂性上不断攀升。面对智能化应用的迅猛增长,传统的单一处理器架构已不足以应对多样化的复杂任务。为此,基于OpenVPX标准,定义并设计了一种符合硬件开放式架构的3U异构融合处理模块,以适应多种复杂任务的需求。文中还提出了一种异构计算资源池化技术,旨在实现多类型任务应用的快速部署和高效运行,同时降低通信延迟,显著提升计算平台的处理能力和适用性。最后进行了实验验证,结果表明与多CPU架构相比,文中所设计的异构融合处理模块在执行特定神经网络算法时,处理时间缩短了约4.8倍,证明了其在性能上的显著提升。该研究成果不仅展示了异构融合处理模块在机载智能计算应用中的显著性能优势,而且为航空计算平台的未来发展提供了创新的解决方案和技术支持。 展开更多
关键词 机载计算平台 openVPX 硬件开放式架构 异构融合处理 资源池化
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Talent Management to Support the Transformation of Human Resource
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作者 Mahmuddin Yasin 《Management Studies》 2014年第6期387-399,共13页
This paper discusses talent management to support Human Resource (HR) tranformation and analyzes the role and the function of Human Resource Management (HRM), how it is expected to be in the future for any organiz... This paper discusses talent management to support Human Resource (HR) tranformation and analyzes the role and the function of Human Resource Management (HRM), how it is expected to be in the future for any organization. The discussion about the relation between HRM, talent management/talent pool, training and development, and HR preparation for leader's candidates (succession) required by every organization to maintain its existence and competitive advantage, is raised in this paper, using literatures/content analyzes and descriptive explanation. Based on the analysis, HRM in the future should be involved more directly in overall people-related business process in order to support the competitive advantage of organization. The role of HRM is no longer limited to the administration, but has shii^ed into a strategic partner and change agent. Talent management can be applied to the fields of business and education in order to achieve superior performance. Appropriate talent management can be used as a strategy to improve organizational performance. Talent management application that is consistent with the goals, strategies, and values of the organization will provide a positive impact on organizational performance. 展开更多
关键词 human resource management (HRM) talent management/talent pool training and development competitive advantage
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Model of Pollution Management Control in Badung River: Enhancing Role of Traditional Law on Common Resource
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《Sociology Study》 2012年第2期120-128,共9页
Badung River in the Denpasar city of Bali Province, Indonesia, faces many challenging issues recently. As a common pool resource, the river has been under pressure from many activities including household activities w... Badung River in the Denpasar city of Bali Province, Indonesia, faces many challenging issues recently. As a common pool resource, the river has been under pressure from many activities including household activities which dump household wastes, and pollution externalities arising from dyeing and screen-printing of fabric industries. Conventional approach to control the pollution might not be effective since it will end up in zero sum game. This paper attempts to explore the role of traditional institituion in managing common pool resource such as controlling river pollution. This research is aimed to know the effectiveness of traditional law on managing pollution of printing and dyeing industries on this big river. Survey method was used for collecting primary data and then the data was analyzed by ordinal regression to determine the effect of internal and external factors which influence the intensity of pollution. The result indicates that even though traditional might help to influence household and industry's decision making, it might not sufficient enough to reduce the pollution of the river. Other factors are influencing the waste management, such as level of waste management knowledge of the entrepreneur, the attitude of the entrepreneur toward public program especially on waste and pollution management, the financial support, and the education level of government supervision. Furthermore, Government of Denpasar City need to arrange policy that giving incentive to businessman who handling waste properly and also giving reward to traditional organization who implementing local wisdom and norm to control river pollution strictly. 展开更多
关键词 Pollution management dyeing and screen-printing industries pollution externalities traditional law common pool resource
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Study on security and protection of original ecotourism resources in the mountain areas of western Guangxi
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作者 Wu Lianglin Zhou Yongzhang +2 位作者 Chen Zhishen Ding dian Yan Xiaoping 《Ecological Economy》 2008年第1期41-48,共8页
Original ecotourism resources mainly refer to natural and human original ecotourism resources, and it's of fragility, rarity and irreversibility. As a valuable historic heritage and hnportant tourism resources, it pl... Original ecotourism resources mainly refer to natural and human original ecotourism resources, and it's of fragility, rarity and irreversibility. As a valuable historic heritage and hnportant tourism resources, it plays a significant role in developing tourism and economy in such areas as the underdeveloped areas, the mountain areas and mimority areas. The tourism resources in the western mountain areas of Guangxi owe ,superiorities and characteristics 'o their original ecology, Yet, western Guangxi is an ethnic region with fragile karst eco-environment, so it is specialto exploit the tourism resources. The paper defines original eeotourism and analyses the specialties and advantages of the original ecotourism resources as well as thefrailty of the ecotourism resources of the region. The ways of thinking are put forward for safe preservation and sustainable development of the original ecotourism resources, i.e. carrying out measures for the multi-grade protection of heritage resources, setting up a ethnic eco-museum/ ethnic culture eco-park and a gene pool of ethnic cultures, etc. 展开更多
关键词 original ecotourism resources Multi-grade natural and cultural heritage Gene pool of ethnic culture resources security Mountain areas of western Guangxi
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Residual Resource Defragmentation Based on ECRC (Enhanced Cloud Resource Consolidating)
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作者 G. Soniya Priyatharsini N. Malarvizhi 《Circuits and Systems》 2016年第10期3121-3130,共10页
In cloud computing, server consolidation is the part where very few persons go through the same. By consolidating the unused server space, memory can be reused for another data allocation. The objective of this paper ... In cloud computing, server consolidation is the part where very few persons go through the same. By consolidating the unused server space, memory can be reused for another data allocation. The objective of this paper is to improve resource utilization. Residual resource fragmentation refers to the state of the data center where sufficient amount of residual resources are available for any new VM allocation. To achieve this, there are three methods followed here. Active physical servers are identified. Then the maximum utilization of the resources is found out. Finally the resources are allocated and scheduled using the developed algorithm. In this work, we have proposed a new algorithm enhanced cloud consolidating algorithm. This algorithm improves some of the qualities of the cloud consolidating algorithm. Here the allocation technique is based on the cost and the memory. 展开更多
关键词 Server Consolidation Residual resource Defragmentation Server Sprawl resource pooling
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基于Reactor模型的列车车载安全计算机网络通信系统优化研究
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作者 魏洋 彭宇飞 蒋文燕 《铁道通信信号》 2024年第8期1-8,共8页
为满足列车网络数据传输的高实时性要求,探讨从车载安全计算机网络通信系统软件层面对数据传输的实时性进行优化。基于Reactor模型,利用操作系统的I/O多路复用机制,将车载安全计算机网络通信系统中的I/O事件、定时事件、信号事件的调用... 为满足列车网络数据传输的高实时性要求,探讨从车载安全计算机网络通信系统软件层面对数据传输的实时性进行优化。基于Reactor模型,利用操作系统的I/O多路复用机制,将车载安全计算机网络通信系统中的I/O事件、定时事件、信号事件的调用接口进行融合统一,简化应用层调用的复杂度;使用带有优先级的事件队列存储已激活事件,根据已激活事件的优先级动态调整线程池中工作线程的优先级,利用强实时操作系统的任务优先级抢占调度策略保证高优先级事件被优先执行;设计一种线程池水位动态扩容机制,保证高优先级事件始终被优先处理,避免出现事件优先级反转;设计一种线程池水位动态减少机制,高效管理线程池容量,避免出现线程池容量偏大浪费系统资源,或线程池容量偏小导致增加重复创建线程开销。 展开更多
关键词 Reactor模型 车载安全计算机 网络通信系统 i/o多路复用 线程池 事件优先级 时间敏感网络
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高职市场营销专业实训基地项目资源池(PR—POOL)模式的研究与实践 被引量:1
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作者 曲岚 《齐齐哈尔师范高等专科学校学报》 2016年第3期76-78,共3页
通过对高职市场营销专业实训基地的研究,发现其存在的问题,为其解决存在问题,对高职市场营销实训基地项目资源池(PR—POOL)模式进行了说明,从而阐述如何构建高职市场营销实训基地项目资源池(PR—POOL),来提升市场营销专业学生的就业能... 通过对高职市场营销专业实训基地的研究,发现其存在的问题,为其解决存在问题,对高职市场营销实训基地项目资源池(PR—POOL)模式进行了说明,从而阐述如何构建高职市场营销实训基地项目资源池(PR—POOL),来提升市场营销专业学生的就业能力和创业能力。 展开更多
关键词 项目资源池(PR-pool) 市场营销 人才培养
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铜熔炼渣中组元Fe_(3)O_(4)对铜的阻滞行为及机制
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作者 喻澳 龚杰 +7 位作者 查石林 王忠兵 吴安琪 曾桂生 谭荣 米雪 刘鹏飞 刘春力 《中南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2023年第2期477-484,共8页
机械夹带和化学溶解是造成铜冶炼过程金属损失的主要路径,而这两种损失路径均受铜熔炼渣成分影响明显。以Fe_(3)O_(4)和Cu2O为研究对象,模拟铜熔炼造渣过程的主要条件,研究铜熔炼渣中组元Fe_(3)O_(4)对铜的阻滞行为。研究结果表明:组元F... 机械夹带和化学溶解是造成铜冶炼过程金属损失的主要路径,而这两种损失路径均受铜熔炼渣成分影响明显。以Fe_(3)O_(4)和Cu2O为研究对象,模拟铜熔炼造渣过程的主要条件,研究铜熔炼渣中组元Fe_(3)O_(4)对铜的阻滞行为。研究结果表明:组元Fe_(3)O_(4)对铜离子具有明显的阻滞效应,包括化学溶解阻滞和物理性阻滞。化学阻滞主要是Cu(Ⅰ)与Fe_(3)O_(4)结构中次晶格八面体中Fe(Ⅱ)发生离子交换,取代部分铁位形成Fe(Ⅲ)—O—Cu(Ⅰ)键,铜离子被滞留在四氧化三铁晶格中形成铜掺杂态铁氧化物;物理阻滞主要与以Fe(Ⅲ)为网络形成剂构建的玻璃网络体有关,Fe(Ⅲ)与渣中[SiO4]四面体中的Si—O键结合形成Fe(Ⅲ)—O(BO)—Si键,桥氧键含量增加导致渣黏度增大,铜离子和金属铜颗粒流动性变差,被Fe(Ⅲ)—O(BO)—Si网络体包裹进入玻璃体中,造成铜熔炼渣中铜的多元化损失。通过提高铜熔炼渣碱度,破坏玻璃网络结构和Fe_(3)O_(4)结构中Fe(Ⅲ)—O—Cu(Ⅰ)键,可以明显增加铜的资源化回收效果。 展开更多
关键词 铜熔炼渣 化学阻滞 铜资源 物理阻滞 Fe(Ⅲ)—o—Cu(Ⅰ)键
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Nb_(2)O_(5)-Al_(2)O_(3)-MgO-Na_(2)O-CaO-SiO_(2)体系相平衡研究
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作者 陈昌 任国兴 +2 位作者 韩文生 冉孟杰 陈雯 《有色金属(冶炼部分)》 CAS 北大核心 2023年第10期55-63,共9页
为揭示Nb_(2)O_(5)-Al_(2)O_(3)-MgO-Na_(2)O-CaO-SiO_(2)多元含铌炉渣体系中的铌矿物的定向结晶规律,采用高温相平衡—冷淬—SEM-EDS/XRD/EMPA试验方法,考察了温度、钙硅比(CaO/SiO_(2))、Nb_(2)O_(5)含量等因素对炉渣相平衡关系的影响... 为揭示Nb_(2)O_(5)-Al_(2)O_(3)-MgO-Na_(2)O-CaO-SiO_(2)多元含铌炉渣体系中的铌矿物的定向结晶规律,采用高温相平衡—冷淬—SEM-EDS/XRD/EMPA试验方法,考察了温度、钙硅比(CaO/SiO_(2))、Nb_(2)O_(5)含量等因素对炉渣相平衡关系的影响,并构建了含铌矿物结晶析出的优势相图。结果表明:铌的结晶矿物主要有三种,分别为Ca_(2)Nb_(2)O_(7)、Ca_((14-x))Nb_((2+x))Si_(8)O_((35+1.5x))和3CaO·MgO·Nb_(2)O_(5);铌先富集于液相,相较于脉石组分,含铌固相为后析出相;CaO/SiO_(2)增加会使含铌固相优势区间发生从Ca_(2)Nb_(2)O_(7)相到Ca_((14-x))Nb_((2+x))Si_(8)O_((35+1.5x))相、再到3CaO·MgO·Nb_(2)O_(5)相的转变。Ca_(2)Nb_(2)O_(7)相的优势析晶区间为:温度1050~1200℃,C/S=0.8~1.2。Nb_(2)O_(5)在Ca_((14-x))Nb_((2+x))Si_(8)O_((35+1.5x))相中的嵌布质量浓度在18.5%~19.5%。 展开更多
关键词 铌资源 相平衡 矿相转化 Nb_(2)o_(5)-Al_(2)o_(3)-Mgo-Na_(2)o-Cao-Sio_(2)
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关于倒置A2/O工艺脱氮除磷的相关探讨 被引量:1
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作者 吕璇 《皮革制作与环保科技》 2023年第4期19-21,共3页
现阶段的城市化进程十分迅速,不仅推动了工业的发展,还使人口数量迅速增长,对水资源的需求也在不断提升,再加上现阶段水资源的污染状况较为严重,相关人员要加强对水资源净化作业的重视,实现水资源的循环利用。在现阶段的水污染治理环节... 现阶段的城市化进程十分迅速,不仅推动了工业的发展,还使人口数量迅速增长,对水资源的需求也在不断提升,再加上现阶段水资源的污染状况较为严重,相关人员要加强对水资源净化作业的重视,实现水资源的循环利用。在现阶段的水污染治理环节,氮磷作为常见的污染类型,是相关单位需要解决的关键污染物之一。倒置A2/O工艺是处理水资源污染的关键技术,能够对水资源中的氮磷等成分进行处理,是现阶段水资源治理的发展方向。本文从倒置A2/O工艺入手,浅谈其特点以及优化方式。 展开更多
关键词 倒置A2/o工艺 水资源治理 难点要点 管理策略
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云资源标准化PoD模型研究及部署方案分析
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作者 董少杰 肖爱元 +2 位作者 刘玲 刘芹 蔡毅 《电信工程技术与标准化》 2023年第11期62-68,共7页
随着云资源池大规模建设,业界对资源最小交付单元(PoD)的配置模型和规模均没有标准化,资源池配置种类参差不齐,导致集约化效果差、资源交付慢、资源利用率低、运维难度大等问题。为了解决上述问题,本文提出了基于标准化PoD建设资源池方... 随着云资源池大规模建设,业界对资源最小交付单元(PoD)的配置模型和规模均没有标准化,资源池配置种类参差不齐,导致集约化效果差、资源交付慢、资源利用率低、运维难度大等问题。为了解决上述问题,本文提出了基于标准化PoD建设资源池方法论,并通过PDCA模型实现标准化PoD的迭代更新。首先基于云资源池PoD建设模式及存在问题,详细阐述了标准化PoD的建设思路,构建了标准化PoD的关键要素,最后从不同维度分析得出该建设模式具有预期推广效益。 展开更多
关键词 云资源池 标准化PoD PDCA模型
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基于资源池视角的废弃电子产品逆向物流系统协同模型研究
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作者 廖瑞辉 《物流研究》 2024年第5期74-81,共8页
废弃电子产品具有双重属性,其逆向物流网络分布范围广并且数量增长迅速。不同主体对废弃电子产品逆向物流的需求是不同的,单个的逆向物流节点很难同时满足不同需求,如何合理高效地协调各个逆向物流节点的资源,以满足各个逆向物流任务是... 废弃电子产品具有双重属性,其逆向物流网络分布范围广并且数量增长迅速。不同主体对废弃电子产品逆向物流的需求是不同的,单个的逆向物流节点很难同时满足不同需求,如何合理高效地协调各个逆向物流节点的资源,以满足各个逆向物流任务是亟待解决的重要问题。在数字技术的支持下,逆向物流信息协同领域得到丰富和完善,针对传统模式中废弃电子产品回收处理过程存在的资源利用率低、浪费严重等情况,将整个逆向物流网络看作资源池,采用智能体(Agent)处理功能网络的任务迁移模式代替传统方法中大量的数据迁移模式,构建了基于多智能体(Multi-Agent)的废弃电子产品逆向物流系统资源协同模型,最后仿真结果验证了所建模型的有效性和可行性,为废弃电子产品逆向物流系统的资源调度分配提供了新的解决方案。 展开更多
关键词 MULTI-AGENT 废弃电子产品 资源池 逆向物流 调度优化
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基于单根I/O虚拟化的多根I/O资源池化方法 被引量:8
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作者 王展 曹政 +4 位作者 刘小丽 苏勇 李强 安学军 孙凝晖 《计算机研究与发展》 EI CSCD 北大核心 2015年第1期83-93,共11页
虚拟化技术在为现代数据中心提供高效的服务器整合能力和灵活的应用部署能力的同时,也对数据中心服务器的I/O系统设计提出了新的需求,现有I/O资源与服务器紧密绑定的I/O体系架构将产生成本上升、资源冗余、I/O连线复杂化等一系列问题.... 虚拟化技术在为现代数据中心提供高效的服务器整合能力和灵活的应用部署能力的同时,也对数据中心服务器的I/O系统设计提出了新的需求,现有I/O资源与服务器紧密绑定的I/O体系架构将产生成本上升、资源冗余、I/O连线复杂化等一系列问题.针对上述问题,提出了一种基于单根I/O虚拟化协议(single root I/O virtualization,SR-IOV)的多根I/O资源池化方法:基于硬件的多根域间地址和ID映射机制,实现了多个物理服务器对同一I/O设备的共享复用,有效减少单体服务器所需的设备数量和连线数量,并进一步提高服务器密度;同时提出虚拟I/O设备热插拔技术和多根共享管理机制,实现了虚拟I/O资源在服务器间的实时动态分配,提高资源的利用效率.提出的方法在可编程逻辑器件(fieid-programmable gate array,FPGA)原型系统中进行了验证,其评测表明,方法能够在实现多根I/O虚拟化共享的同时,保证各个根节点服务器获得近乎本地直连设备的I/O性能. 展开更多
关键词 数据中心 服务器 i/o虚拟化 i/o资源池 PCIe兼容
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基于云平台的O2O实验教学体系构建 被引量:15
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作者 蒋玉宇 刘镇 《实验室研究与探索》 CAS 北大核心 2016年第10期188-191,共4页
实验模式的创新对于计算机专业创新人才的培养具有重要意义。设计了一个线上线下(O2O)的开放性实验教学体系,在虚拟化和其他信息技术手段的应用下,实现了实验教学环境中现实与虚拟的有机融合,使实验教学、学习活动在线上和线下得以充分... 实验模式的创新对于计算机专业创新人才的培养具有重要意义。设计了一个线上线下(O2O)的开放性实验教学体系,在虚拟化和其他信息技术手段的应用下,实现了实验教学环境中现实与虚拟的有机融合,使实验教学、学习活动在线上和线下得以充分展开,并在此基础上对学生的学习成长和认知阶段进行了研究,提出了V-型实验教学模式。通过在计算机网络课程中的应用表明,O2O的实验教学体系与V-型实验教学模式的结合打造了专业能力、创新能力和综合素质一体化的全面培养的实验教学新模式,显著提高了学生的创新能力,有利于高校创新人才的培养。 展开更多
关键词 云计算 o2o 资源池化 虚拟化
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