oalib

OALib Journal期刊

ISSN: 2333-9721

费用：99美元

投稿

时间不限

( 2025 )

( 2024 )

( 2023 )

( 2022 )

自定义范围…

匹配条件： “柴亚辉” ，找到相关结果约92362条。
列表显示的所有文章，均可免费获取
第1页/共92362条
每页显示 条
Completed Free Resource Management Research on Dynamic Partial Reconfigurable System
动态部分可重构系统空闲资源全集管理研究
柴亚辉,张胜辉,黄卫春,刘觉夫,徐炜民
计算机科学 , 2013,
Abstract: Reconfigurable computing system has the flexibility of traditional processor and the speed of ASIC approximately. Dynamic partial reconfigurable system realizes the computing and reconfiguration at the same time, in which an efficient free resource management scheme is very important to achieve high performance. I}his paper introduced an effident algorithm to find a series of maximal free rectangles (MFR) based on one-way stack. The algorithm uses different M value in and out of oncway stack to find all maximal free rectangles. We used simulation experiments to simulate the algorithm, and the results show that the this algorithm improves the performance of searching complete free resources.
动态部分可重构系统空闲资源全集管理研究
柴亚辉,张胜辉,黄卫春,刘觉夫,徐炜民？
计算机科学 , 2013,
Abstract: 可重构系统兼具了传统处理器的灵活性和接近于asic的计算速度，fpga的动态部分重构能够实现计算和重构操作的同时进行，使系统能够动态地改变任务的运行。在动态部分可重构系统中，高效的空闲资源管理策略对系统整体性起着非常重要的作用。提出了一种基于单向栈的算法来寻找最大空闲矩形(mfr)。利用可重构计算单元的不同叮值进出单向栈来找到所有最大空闲矩形。通过实验表明，算法通过使用单向找与算法优化，有效地提高了查找空闲资源全集的性能。
FPGA加速部件求解FMM算法中PP问题研究
柴亚辉,沈文枫,曹旻,徐炜民,郑衍衡
福州大学学报(自然科学版) , 2011,
Abstract: 提出了一种基于FMM求解多体问题的PP计算在FPGA加速部件上进行计算加速的实现方法.通过在对FMM算法中PP计算过程的原代码的计算类型分析与代码转化,给出了在FPGA上的具体实现方案,最后,通过Virtex-5实验平台的计算结果表明能够取得20倍左右的稳定加速效果.
货车侧翻原理及其防侧翻动力学分析的研究
Research on the Principle of Lorry Rollover and Anti-Rollover Device Dynamics Analysis  [PDF]
孙锐, 罗宁, 柴亚博, 董纪伟
International Journal of Mechanics Research (IJM) , 2021, DOI: 10.12677/IJM.2021.103016
Abstract: 本文基于两例货车侧翻重大案例，通过合理简化，构建出东风重型载货车转弯的动力学模型，然后通过刚体力学理论与MATLAB分析货车侧翻的主要原因。为了解决货车易侧翻问题，设计了一种安全气阀和陀螺仪防货车侧翻装置。主要结论包括：1) 通过刚体力学可以简化分析货车由于转弯、车厢倾斜的侧翻问题，其结论与实际相符。2) 离心力与转角近似成线性关系；车速越快，转角越大，车厢偏转角度越大，车辆越容易侧翻。3) 安全气阀和陀螺仪均可提供有效力矩防止侧翻，其对大货车防侧翻结构设计，优化设计和安全控制都具有非常重要的指导意义。
Based on two major cases of truck rollover, this paper constructs a dynamic model of Dongfeng heavy duty truck turning through reasonable simplification, then through the rigid body mechanics theory and MATLAB, the main reasons for the truck rollover are analyzed. In order to solve the problem of truck rollover, a safety valve and gyroscope are designed to prevent truck rollover. The main conclusions include: 1) Rigid body mechanics can simplify the analysis of the rollover problem of trucks due to turning and tilting of the carriage. The conclusions are consistent with the actual situation. 2) The centrifugal force and the angle of rotation are approximately linear; the faster the vehicle speed is, the greater the angle of rotation is, and the greater the deflection angle of the carriage is, the more easily the vehicle will roll over. 3) Both the safety valve and the gyroscope can provide effective torque to prevent rollover, which has very important guiding significance for the design of anti-rollover structure, optimization design and safety control of large trucks.
稀土萃取分离过程的优化设定控制
杨　辉,柴天佑
控制与决策 , 2005,
Abstract: 针对稀土萃取分离生产过程的特点,将机理分析与神经网络技术相结合,给出了实现稀土萃取分离生产过程组份含量在线预测的软测量模型及其校正算法.提出了基于案例推理和软测量技术相结合的稀土萃取分离生产过程智能优化设定控制技术.将该技术应用于某公司HAB双溶剂萃取提钇分离生产过程,实现了萃取分离生产过程的优化控制和优化运行,取得了明显的应用成效.
稀土萃取过程组分含量的神经网络软测量方法
杨辉, 柴天佑
自动化学报 , 2006,
Abstract: ？Throughtfusionofthemechanismmodelingandtheneuralnetworksmodeling,acomponentcontentsoft-sensor,whichiscomposedoftheequilibriumcalculationmodelformulti-componentrareearthextractionandtheerrorcompensationmodeloffuzzysystem,isproposedtosolvetheproblemthatthecomponentcontentincountercurrentrare-earthextractionprocessishardlymeasuredon-line.AnindustryexperimentintheextractionYprocessbyHABusingthishybridsoft-sensorprovesitseffectiveness.
稀土萃取过程组分含量的神经网络软测量方法
杨辉,柴天佑
- , 2006,
Abstract:
基于FLAC3D的煤层底板采动破坏深度预测
Prediction of Mining Failure Depth of Coal Seam Floor Based on FLAC3D  [PDF]
贾春旺, 柴辉婵
Mine Engineering (ME) , 2024, DOI: 10.12677/me.2024.124102
Abstract: 煤层底板突水问题成为煤矿开采的一个重大的安全隐患，带压开采已成为深部煤炭资源开发的主要开采方式。以朱仙庄煤矿为例，研究了煤层底板突水问题，应用FLAC3D数值模拟方法预测煤层底板的采动破坏深度。通过经验公式法和数值模拟法计算，得出朱仙庄煤矿10煤层底板在采动后的最大破坏深度分别为26.4 m和26.2 m。结果表明，两种方法的预测值相近，验证了数值模拟的合理性。研究结果对提高矿井安全生产、预防突水灾害具有一定的理论和实践意义。
The problem of water inrush from coal seam floor has become a major safety hazard in coal mining. Mining under pressure has become the main mining method for the development of deep coal resources. Taking Zhuxianzhuang Coal Mine as an example, the water inrush problem of coal seam floor is studied, and the mining failure depth of coal seam floor is predicted by FLAC3D numerical simulation method. Through the calculation of empirical formula method and numerical simulation method, it is concluded that the maximum failure depth of 10 coal seam floor in Zhuxianzhuang Coal Mine after mining is 26.4 m and 26.2 m respectively. The results show that the predicted values of the two methods are similar, which verifies the effectiveness of the numerical simulation. The research results have important theoretical and practical significance for improving mine safety production and preventing water inrush disasters.
石油钻铤的疲劳寿命研究
Research on the Fatigue Life of the Oil Drill Collar  [PDF]
袁彩云, 崔亚辉
Mechanical Engineering and Technology (MET) , 2014, DOI: 10.12677/MET.2014.34018
Abstract:
本文针对某钻铤在使用过程中发生疲劳断裂事故的实际问题进行了分析研究。在线性疲劳累计损伤理论的基础上，采用修正过的曼森–科芬方程对钻铤的疲劳寿命进行估算，进一步通过ANSYS Workbench有限元软件进行仿真分析。结果表明，仿真分析的危险截面与真实情况相符，且其得出的寿命与理论估算基本吻合，为工程设计提供参考。
The practical problem of a drill collar fatigue fracture accident occurring in the using process is studied. On the basis of the linear fatigue cumulative damage theory, the revised Manson-Coffin equation is used to estimate the fatigue life of drill collar. Further the finite element software ANSYS Workbench is applied to simulate the analysis. Comparing the results of the analysis, we can conclude that it can be applied in the practical engineering.
GIS技术在房地产开发项目选址中的应用
Application of GIS to Site Selection of Real Estate Development Project  [PDF]
姜亚莉, 张延辉
Geographical Science Research (GSER) , 2016, DOI: 10.12677/GSER.2016.54028
Abstract:
房地产具有很强的区位性，其开发投资量大、回收周期长，项目选址的正确与否在房产开发直至销售的全过程中至关重要。本文将GIS软件应用于房地产住宅开发的项目选址决策中，在分析了空间统计方法的基础上，针对住宅项目选址的模型，以珠海市中心城区为研究对象，基于珠海市土地利用规划，从交通便捷度、人口聚集度和房价水平这三个重要指标探讨GIS技术在房地产开发项目选址中的重要作用，从而减少房地产开发项目决策的盲目性，为房地产项目开发提供科学的选址决策依据。
Real estate is strongly regional, with the characteristics of big investment and long recovery period. Whether the location of the project is correct or not, is of vital importance in the whole process of real estate development until the sales. This paper applies GIS software to site selection of resi-dential development project. Based on the spatial statistical methods, aimed at site selection model of residential project, this paper takes Zhuhai city center as the research object, and based on land use planning, discusses the importance of GIS technology in site selection of real estate development project from three important indexes: transportation convenience degree, population concentration degree, and house prices level. Therefore, these can reduce the blindness in decision-making of real estate development project, and provide the scientific location decision- making basis for the development of real estate project.
第1页/共92362条
每页显示 条


Home
Copyright © 2008-2020 Open Access Library. All rights reserved.