期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
基于“环境-任务”的气象海洋环境构设框架设计
1
作者 李娜 张子杰 +2 位作者 李绍文 张沿淞 李京爵 《科技创新与应用》 2024年第33期1-4,共4页
战场气象海洋环境构设的目的是建立一个逼真的仿真环境,使得其中的作战实体在完成作战任务的过程中感受并受到气象海洋环境的各类影响,每类作战实体均有自身的气象海洋环境特性,气象海洋环境与作战实体任务之间存在一种客观的影响关系... 战场气象海洋环境构设的目的是建立一个逼真的仿真环境,使得其中的作战实体在完成作战任务的过程中感受并受到气象海洋环境的各类影响,每类作战实体均有自身的气象海洋环境特性,气象海洋环境与作战实体任务之间存在一种客观的影响关系。该文试图建立一种气象海洋环境-作战任务的影响关系形式化描述方法,基于该方法,提出一种基于“环境-任务”的仿真环境构建框架,降低气象海洋环境构设的复杂度,为高效、有目标的战场气象海洋环境构设提供支撑。 展开更多
关键词 气象海洋环境 环境-任务 环境构设 仿真环境 大气
下载PDF
TPTVer: A Trusted Third Party Based Trusted Verifier for Multi-Layered Outsourced Big Data System in Cloud Environment 被引量:3
2
作者 Jing Zhan Xudong Fan +2 位作者 Lei Cai Yaqi Gao Junxi Zhuang 《China Communications》 SCIE CSCD 2018年第2期122-137,共16页
Cloud computing is very useful for big data owner who doesn't want to manage IT infrastructure and big data technique details. However, it is hard for big data owner to trust multi-layer outsourced big data system... Cloud computing is very useful for big data owner who doesn't want to manage IT infrastructure and big data technique details. However, it is hard for big data owner to trust multi-layer outsourced big data system in cloud environment and to verify which outsourced service leads to the problem. Similarly, the cloud service provider cannot simply trust the data computation applications. At last,the verification data itself may also leak the sensitive information from the cloud service provider and data owner. We propose a new three-level definition of the verification, threat model, corresponding trusted policies based on different roles for outsourced big data system in cloud. We also provide two policy enforcement methods for building trusted data computation environment by measuring both the Map Reduce application and its behaviors based on trusted computing and aspect-oriented programming. To prevent sensitive information leakage from verification process,we provide a privacy-preserved verification method. Finally, we implement the TPTVer, a Trusted third Party based Trusted Verifier as a proof of concept system. Our evaluation and analysis show that TPTVer can provide trusted verification for multi-layered outsourced big data system in the cloud with low overhead. 展开更多
关键词 big data security outsourced ser-vice security MapReduce behavior trustedverification trusted third party
下载PDF
From Rubbish to a Large Scale Industry: A Simple Fabrication of Superfiber with Multitasking Applications
3
作者 Hendry Izaac Elim (Elim Heaven) Ronaldo Talapessy +2 位作者 Rafael Martinus Osok Sawia Eliyas Andreas 《Journal of Environmental Science and Engineering(B)》 2015年第11期620-623,共4页
In the whole earth, people increased dramatically from generation to generation which had created a large scale of broken environment so that people are facing more various types of garbage. Most of garbages are not u... In the whole earth, people increased dramatically from generation to generation which had created a large scale of broken environment so that people are facing more various types of garbage. Most of garbages are not useful and as a matter of fact, they are used to be neglected. Furthermore, many efforts have been conducted to change it by many types of recycled methods. Here, a simple technique is proposed with and without using fires to transform the useless natural or man-made rubbish things to be a superfiber as well as thin film with multitasking applications in human daily life. Since most of earth environment is covered by oceans, here the authors show how the ocean related garbage such as the crab skins, broken coral reefs and beach stones were changed to be superfiber and a multitasking device prototype. 展开更多
关键词 Rubbish FABRICATION superfiber multitasking marine environment.
下载PDF
Performance Analysis of Robotic Arm Manipulators Control System under Multitasking Environment 被引量:1
4
作者 Adnan Al Moshi Salwa Salam Cynthia Eftakhairul Islam Rumana Rahman Akm Abdul Malek Azad 《Journal of Mechanics Engineering and Automation》 2012年第5期327-331,共5页
This work is to observe the performance of PC based robot manipulator under general purpose (Windows), Soft (Linux) and Hard (RT Linux) Real Time Operating Systems (OS). The same open loop control system is ob... This work is to observe the performance of PC based robot manipulator under general purpose (Windows), Soft (Linux) and Hard (RT Linux) Real Time Operating Systems (OS). The same open loop control system is observed in different operating systems with and without multitasking environment. The Data Acquisition (DAQ, PLC-812PG) card is used as a hardware interface. From the experiment, it could be seen that in the non real time operating system (Windows), the delay of the control system is larger than the Soft Real Time OS (Linux). Further, the authors observed the same control system under Hard Real Time OS (RT-Linux). At this point, the experiment showed that the real time error (jitter) is minimum in RT-Linux OS than the both of the previous OS. It is because the RT-Linux OS kernel can set the priority level and the control system was given the highest priority. The same experiment was observed under multitasking environment and the comparison of delay was similar to the preceding evaluation. 展开更多
关键词 Control system DAQ (data acquisition) card JITTER multitasking RT-Linux.
下载PDF
Research on Key Technology of Web Vulnerability Detection System Based on Cloud Environment
5
作者 Zhang Zhen 《International Journal of Technology Management》 2013年第12期121-124,共4页
In the light of the defect of web vulnerability detection system, combined with the characteristics of high efficient and sharing in the cloud environment, a design proposal is presented based on cloud environment, wh... In the light of the defect of web vulnerability detection system, combined with the characteristics of high efficient and sharing in the cloud environment, a design proposal is presented based on cloud environment, which analyses the key technology of gaining the URL, task allocation and scheduling and the design of attack detection. Experiment shows its feasibility and effectiveness in this paper. 展开更多
关键词 cloud technology web crawler task allocation and scheduling detection of SQL injection XSS detection
下载PDF
Corporate Social Responsibility——From the Perspective of Polish Enterprises
6
作者 Katarzyna Olejniczak 《Chinese Business Review》 2014年第4期232-242,共11页
Corporate social responsibility (CSR) is becoming more and more frequently emphasized part of management in the structure of Polish enterprises. These results from the fact that growing awareness of consumers, destr... Corporate social responsibility (CSR) is becoming more and more frequently emphasized part of management in the structure of Polish enterprises. These results from the fact that growing awareness of consumers, destructive impact of industry on the natural environment, economic scandals, unethical behavior among entrepreneurs, bring about redefining the principles of a business activity on the market by entrepreneurs. As a result of the above, such values as honesty, trust, or responsibility take on greater importance. Additionally, more and more often, Polish entrepreneurs pay attention to the influence of the company on the environment, the way the stakeholders are treated, while striving to maximize profit. The present paper looks into the subject of social responsibility from the point of view of Polish enterprises. To verify this objective, there was the analysis of the due literature performed, and also carried out the survey among 174 entrepreneurs running their business activity in the area of Southern Poland. The research tool used in the research was the questionnaire (PAPI and CAWI). In the conducted research, there were factors analyzed referring to knowledge of social responsibility among the people holding both managerial and lower-level positions, in particular opinion, is it important for enterprises to be driven by ethical standards? How to implement CSR in their structures? How to understood concept of CSR? What are the reasons for the implementation of CSR in the strategy of the company? The considerations (both the theoretical and practical ones) confirmed that the Polish enterprises feel the increased need to implement the activities in the field of social responsibility, which, in the present conditions, constitutes an important part of running a business activity. 展开更多
关键词 corporate social responsibility (CSR) development stages of CSR in Poland good practices aspects ofCSR
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部