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Effect of the sloping seabed on 3D soil-spudcan interaction using a material point-finite element(MPM-FEM)model
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作者 Zhengda Lei Guangtian Zeng +2 位作者 Huaihui Ren Bisheng Wu Yuxin Jie 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2024年第4期1436-1454,共19页
The sloping seabed affects the bearing capacity and failure mechanism of soil,which may compromise the stability and safety of offshore structures such as jack-up platforms.This paper employs a coupled model combining... The sloping seabed affects the bearing capacity and failure mechanism of soil,which may compromise the stability and safety of offshore structures such as jack-up platforms.This paper employs a coupled model combining the material point method and finite element method(MPM-FEM)to analyze the impact of sloping seabeds on the three-dimensional soil-spudcan interaction.The MPM-FEM model implements the B¯approach to solve the challenge of volumetric locking due to the incompressibility constraints imposed by yield criterion.It is validated against the centrifuge results.The effects of sloping seabeds on penetration resistance,soil flow pattern,lateral response,stress distribution,and failure mechanism are discussed.The soil mainly undergoes overall failure when the ratio of penetration depth to spudcan diameter(i.e.D P/D)is between 0 and 0.25.As the slope angle increases,the soil on the side of lower slope is expelled further,resulting in an asymmetric stress distribution and a larger horizontal sliding force of soil.When D P/D increases to 0.75,the soil transitions to localized plastic flow failure,and the range of soil flow affected by the spudcan penetration decreases.The results show that,when the slope angle increases,the lateral displacement and stress distribution on the lower slope of a sloping seabed is significantly larger than that of a horizontal seabed,impacting the spudcan and surrounding soil behavior.The study suggests that the seabed slope significantly affects the range of soil flow and failure at shallow penetration,indicating that the slope angle should be taken into account in the design and installation of offshore jack-up rigs,particularly in areas with sloping seabeds. 展开更多
关键词 soil-spudcan interaction Centrifuge tests MPM-FEM model b—approach sloping seabeds Offshore structures
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Study on soil-pile-structure-TMD interaction system by shaking table model test 被引量:3
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作者 楼梦麟 王文剑 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2004年第1期127-137,共11页
The success of the tuned mass damper (TMD) in reducing wind-induced structural vibrations has been well established. However, from most of the recent numerical studies, it appears that for a structure situated on very... The success of the tuned mass damper (TMD) in reducing wind-induced structural vibrations has been well established. However, from most of the recent numerical studies, it appears that for a structure situated on very soft soil, soil-structure interaction (SSI) could render a damper on the structure totally ineffective. In order to experimentally verify the SSI effect on the seismic performance of TMD, a series of shaking table model tests have been conducted and the results are presented in this paper. It has been shown that the TMD is not as effective in controlling the seismic responses of structures built on soft soil sites due to the SSI effect. Some test results also show that a TMD device might have a negative impact if the SSI effect is neglected and the structure is built on a soft soil site. For structures constructed on a soil foundation, this research verifies that the SSI effect must be carefully understood before a TMD control system is designed to determine if the control is necessary and if the SSI effect must be considered when choosing the optimal parameters of the TMD device. 展开更多
关键词 soil-pile-structure interaction TMD’s performance structural control shaking table model test
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基于B/S的高校实验室预约管理系统设计与实现
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作者 李丹 《现代信息科技》 2024年第5期31-35,共5页
为了实现实验室管理信息化,更好地为师生服务,文章设计并开发一套高校实验室预约管理系统。该系统是基于B/S结构,采用Vue视图框架、Nginx服务器及MySQL数据库构建而成的;支持专业实验室、教室和会议室的预约管理;入口对接华中科技大学... 为了实现实验室管理信息化,更好地为师生服务,文章设计并开发一套高校实验室预约管理系统。该系统是基于B/S结构,采用Vue视图框架、Nginx服务器及MySQL数据库构建而成的;支持专业实验室、教室和会议室的预约管理;入口对接华中科技大学统一身份认证系统,在校师生可直接使用已有的统一身份认证系统账号密码登录系统。用户可通过浏览器完成在线预约、预约查询、预约管理和数据统计等功能。该系统的应用提高了实验室管理的规范性和信息化程度。 展开更多
关键词 预约管理 实验室信息化 b/s结构 MYsQL数据库
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THE SYNTHESIS AND CRYSTAL STRUCTURE OF B-(32) MODEL COMPOUND: 1-C_4H_9Co(salen)(Py)
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作者 Hui Lan CHEN De Yan HAN +3 位作者 Qing Yuan WU Wen Xia TANG Yao YANG Hua Qin WANG 《Chinese Chemical Letters》 SCIE CAS CSCD 1992年第7期559-560,共2页
The title complex i-C_4H_9Co(salen)(Py) (Py=pyridine. salen=dianion of disalicylideneethylenediamine) has been first synthesized. Its crystal structure has been determined by X-ray diffraction method. The crystsis are... The title complex i-C_4H_9Co(salen)(Py) (Py=pyridine. salen=dianion of disalicylideneethylenediamine) has been first synthesized. Its crystal structure has been determined by X-ray diffraction method. The crystsis are monoclinic with space group P2_1/ C. The unit cell parametes are presented. The structure has been refined to a final R of 0.038. 展开更多
关键词 C4H9Co model COMPOUND PY THE sYNTHEsIs AND CRYsTAL structure OF b sALEN
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泸定M_(S)6.8地震发震机制研究——来自震前噪声成像和b值分布的共同约束
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作者 花茜 裴顺平 +5 位作者 杨宜海 薛晓添 李磊 李佳蔚 刘翰林 刘巍 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2024年第5期1767-1780,共14页
2022年9月5日四川省甘孜州泸定县发生了M_(S)6.8地震,打破了鲜水河断裂带东南段的大震"平静期",造成了重大自然灾害.清楚认识泸定地震震源区发震构造、地震活动性和应力状态对研究强震发震机制具有重要作用.本文利用震前在泸... 2022年9月5日四川省甘孜州泸定县发生了M_(S)6.8地震,打破了鲜水河断裂带东南段的大震"平静期",造成了重大自然灾害.清楚认识泸定地震震源区发震构造、地震活动性和应力状态对研究强震发震机制具有重要作用.本文利用震前在泸定地震震源区布设的50台短周期流动地震台阵观测资料及区域地震台网震相走时数据,分别采用背景噪声成像、双差定位和改进的b值成像技术,获得了震前震源区浅层高分辨率S波速度结构、地震空间分布及b值横向变化图像.结果揭示,泸定地震主震初始破裂起始于鲜水河断裂磨西段、具有高速异常和高应力特征的凹凸体内;主震西侧存在一条隐伏的正断型伴生分支断裂,5.0级的最大余震即发生在该断裂上;主震凹凸体的破裂同时造成了东南方向另一个较小高速凹凸体的破裂并形成密集余震群.由此可见,震源区跨断层高速异常"铆钉"结构和震前的高应力积累在整体上控制了泸定地震的发生和强余震活动.通过浅层高分辨率结构成像识别这种特殊的"铆钉"结构,同时通过b值成像识别高应力区,可有效评估断层的发震能力,对重点区域地震危险性研判具有极其重要的意义. 展开更多
关键词 泸定M_(s)6.8地震 s波速度结构 b值成像 高速凹凸体 地震发震机制
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基于B/S结构的异构数据库加密算法仿真
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作者 闫银芳 任宏 王晓燕 《计算机应用文摘》 2024年第12期44-46,共3页
在处理用户与权限中心的密钥时,传统加密方法存在对应层次不均和异构数据库加密时间长等问题。对此,文章提出了一种基于B/S结构的异构数据库加密算法,首先对比了C/S与B/S结构的优缺点;其次构建了基于B/S结构的异构数据库加密体系框架。... 在处理用户与权限中心的密钥时,传统加密方法存在对应层次不均和异构数据库加密时间长等问题。对此,文章提出了一种基于B/S结构的异构数据库加密算法,首先对比了C/S与B/S结构的优缺点;其次构建了基于B/S结构的异构数据库加密体系框架。该框架包括1套全面的密钥管理机制,用于生成各级权限管理中心的密钥,以及用户在对应权限中心的密钥与用户主密钥。通过使用访问策略树对服务器端的明文数据进行加密,该算法可将需要保护的数据转换为密文形式。仿真结果显示,该算法不仅能有效完成异构数据库加密,达到保护数据库安全的目标,且响应时间相比传统方法有显著提升。 展开更多
关键词 b/s结构 加密算法仿真 异构数据
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基于模糊数学理论改进B-S模型的专利质押融资价值评估
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作者 王鹤恬 谭冰 《中国证券期货》 2024年第1期44-52,共9页
在专利质押的法规条款不断完善的背景下,越来越多的科技型企业选择以专利作为质押物获得银行融资,所以对专利进行合理估值是高新技术企业进行专利质押融资的重要前提。而针对专利资产在价值评估过程中存在的主观性、不确定性等方面的问... 在专利质押的法规条款不断完善的背景下,越来越多的科技型企业选择以专利作为质押物获得银行融资,所以对专利进行合理估值是高新技术企业进行专利质押融资的重要前提。而针对专利资产在价值评估过程中存在的主观性、不确定性等方面的问题,本文通过模糊数学理论对B-S模型进行改进,并通过实际案例验证该模型对专利质押价值评估具有一定的可行性,最后在对模型潜在价值关键影响因素进行敏感性分析的基础上,确定了关键因素对专利潜在价值的影响方向并提出建议。 展开更多
关键词 专利质押 价值评估 实物期权 b-s模型 模糊数学
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基于B/S架构的小学家校信息管理系统设计 被引量:1
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作者 彭海霞 《信息与电脑》 2024年第3期245-247,共3页
文章采用模型-视图-控制器(Model-View-Controller,MvC)的软件设计模型,基于浏览器/服务器(Browser/Server,B/S)架构设计一种小学家校信息管理系统,旨在提高学校家校沟通的效率和质量。采用黑盒测试和白盒测试相结合的方式对所设计的系... 文章采用模型-视图-控制器(Model-View-Controller,MvC)的软件设计模型,基于浏览器/服务器(Browser/Server,B/S)架构设计一种小学家校信息管理系统,旨在提高学校家校沟通的效率和质量。采用黑盒测试和白盒测试相结合的方式对所设计的系统进行测试。实验结果表明,该系统能够满足小学家校信息管理的需求,并具有良好的性能和稳定性。 展开更多
关键词 浏览器/服务器(b/s) 模型-视图-控制器(MVC) 家校信息管理系统
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基于EVA-BS模型下电商企业价值评估
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作者 王雨露 《商业观察》 2024年第8期63-66,共4页
随着网络的快速发展,大多数人们都在网络中畅行,淘宝、京东、天猫等各大电商平台炙手可热,使得互联网与我国社会的发展息息相关。文章通过之前学者对互联网的研究,概括分析出互联网电商行业的特点以及发展的难点困点,总结出运用常用的... 随着网络的快速发展,大多数人们都在网络中畅行,淘宝、京东、天猫等各大电商平台炙手可热,使得互联网与我国社会的发展息息相关。文章通过之前学者对互联网的研究,概括分析出互联网电商行业的特点以及发展的难点困点,总结出运用常用的评估方法对电商行业进行价值评估时的弊端,并提出运用EVA和B-S模型对企业进行价值评估,从而发现更好的企业价值评估方法来对电商行业进行评估,为投资者提出更加合理且正确的有关企业价值的建议。 展开更多
关键词 电商企业 企业价值评估 EVA b-s模型
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Estimation and testing of linkages between forest structure and rainfall interception characteristics of a Robinia pseudoacacia plantation on China’s Loess Plateau 被引量:1
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作者 Changkun Ma Yi Luo +1 位作者 Mingan Shao Xiaoxu Jia 《Journal of Forestry Research》 SCIE CAS CSCD 2022年第2期529-542,共14页
Understanding the interaction between canopy structure and the parameters of interception loss is essential in predicting the variations in partitioning rainfall and water resources as affected by changes in canopy st... Understanding the interaction between canopy structure and the parameters of interception loss is essential in predicting the variations in partitioning rainfall and water resources as affected by changes in canopy structure and in implementing water-based management in semiarid forest plantations.In this study,seasonal variations in rainfall interception loss and canopy storage capacity as driven by canopy structure were predicted and the linkages were tested using seasonal filed measurements.The study was conducted in nine 50 m×50 m Robinia pseudoacacia plots in the semiarid region of China’s Loess Plateau.Gross rain-fall,throughfall and stemflow were measured in seasons with and without leaves in 2015 and 2016.Results show that measured average interception loss for the nine plots were 17.9% and 9.4% of gross rainfall during periods with leaves (the growing season) and without leaves, respectively. Average canopy storage capacity estimated using an indirect method was 1.3 mm in the growing season and 0.2 mm in the leafless season. Correlations of relative interception loss and canopy storage capacity to canopy variables were highest for leaf/wood area index (LAI/WAI) and canopy cover, fol-lowed by bark area, basal area, tree height and stand density. Combined canopy cover, leaf/wood area index and bark area multiple regression models of interception loss and canopy storage capacity were established for the growing season and in the leafless season in 2015. It explained 97% and 96% of the variations in relative interception loss during seasons with and without leaves, respectively. It also explained 98% and 99% of the variations in canopy storage capacity during seasons with and without leaves, respectively. The empiri-cal regression models were validated using field data col-lected in 2016. The models satisfactorily predicted relative interception loss and canopy storage capacity during seasons with and without leaves. This study provides greater under-standing about the effects of changes in tree canopy structure (e.g., dieback or mortality) on hydrological processes. 展开更多
关键词 Rainfall interception loss Canopy storage Canopy structure Regression models China’s Loess Plateau
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An experimental study on variation of b value during deformation of rock samples with different structural models
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作者 陈顺云 刘力强 +1 位作者 马胜利 马瑾 《Acta Seismologica Sinica(English Edition)》 CSCD 2005年第3期338-344,共7页
A preliminary study of b value of rocks with two kinds of structural models has been made on the base of a new acoustic emission recording system. It shows that b value of the sample decreases obviously when the sampl... A preliminary study of b value of rocks with two kinds of structural models has been made on the base of a new acoustic emission recording system. It shows that b value of the sample decreases obviously when the sample with compressive en echelon faults changes into a tensile one after interchange occurs between stress axis σ1 and σ2. A similar experiment is observed when the sample with tensile en echelon faults changes into that with a bend fault after two segments of the en echelon fault linking up. These facts indicate that the variation of b value may con-tain the information of the regional dominant structural model. Therefore, b-value analyses could be a new method for studying regional dominant structural models. 展开更多
关键词 b value of acoustic emission structural model en echelon fault bend fault
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Computational Simulations of Bone Remodeling under Natural Mechanical Loading or Muscle Malfunction Using Evolutionary Structural Optimization Method
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作者 Hadi Latifi Yi Min Xie +1 位作者 Xiaodong Huang Mehmet Bilgen 《Engineering(科研)》 2014年第3期113-126,共14页
Live bone inherently responds to applied mechanical stimulus by altering its internal tissue composition and ultimately biomechanical properties, structure and function. The final formation may structurally appear inf... Live bone inherently responds to applied mechanical stimulus by altering its internal tissue composition and ultimately biomechanical properties, structure and function. The final formation may structurally appear inferior by design but complete by function. To understand the loading response, this paper numerically investigated structural remodeling of mature sheep femur using evolutionary structural optimization method (ESO). Femur images from Computed Tomography scanner were used to determine the elastic modulus variation and subsequently construct finite element model of the femur with stiffest elasticity measured. Major muscle forces on dominant phases of healthy sheep gait were imposed on the femur under static mode. ESO was applied to progressively alter the remodeling of numerically simulated femur from its initial to final design by iteratively removing elements with low strain energy density (SED). The computations were repeated with two different mesh sizes to test the convergence. The elements within the medullary canal had low SEDs and therefore were removed during the optimization. The SEDs in the remaining elements varied with angle around the circumference of the shaft. Those elements with low SED were inefficient in supporting the load and thus fundamentally explained how bone remodels itself with less stiff inferior tissue to meet load demand. This was in line with the Wolff’s law of transformation of bone. Tissue growth and remodeling process was found to shape the sheep femur to a mechanically optimized structure and this was initiated by SED in macro-scale according to traditional principle of Wolff’s law. 展开更多
关键词 bONE REmodelING Computer simulation Finite Element modeling EVOLUTIONARY structural Optimization Wolff’s LAW
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Design and Application of English Learning System based on B/S Structure
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作者 Qingli Zhao 《International Journal of Technology Management》 2013年第7期97-99,共3页
This paper analyzes advantages and disadvantages of the current several popular computer-aided English learning software. combined with modem English teaching philosophy, proposed learning system with synchronization,... This paper analyzes advantages and disadvantages of the current several popular computer-aided English learning software. combined with modem English teaching philosophy, proposed learning system with synchronization, interactivity, intelligence, and incentives in one of the English to students. System uses JavaEE framework to build, each module uses a low coupling between the way facilitate future extensions. The system can help students build confidence and motivate its progress. 展开更多
关键词 Online learning JAVAEE FLEX video annotation b/s model
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Structural Modeling of the Top Turonian Reservoir in the Northern Seme Oilfield (Benin, West-Africa)
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作者 Gerard Alfred Franck d’Almeida Christophe Kaki Suzanne Amelina 《Open Journal of Geology》 2021年第12期682-695,共14页
The Sèmè oilfield is located in Benin’s offshore coastal sedimentary basin, near the Benin-Nigeria border, and contains two important oil bearing structures called “Sèmè North” and “Sèm... The Sèmè oilfield is located in Benin’s offshore coastal sedimentary basin, near the Benin-Nigeria border, and contains two important oil bearing structures called “Sèmè North” and “Sèmè South”. In this coastal basin, Turonian sandstones of Abeokuta formation (Cenomanian-Turonian to Early Senonian age) form two reservoir units differentiated by two seismic horizons H6 and H6.5. The H6 seismic horizon represents the upper reservoir unit and is the main reservoir from which, more than 22 million barrels of crude oil had previously been produced in Sèmè oilfield. In order to improve knowledge of field petroleum geology, the present study presents the structural features of this upper reservoir unit. The use of Petrel software modules for the integration of 15 wells data, allowed presenting a structural model and illustrative cross sections that precise the geometry and specifying the structural characteristics of this reservoir unit within Sèmè field. The displayed structural architecture shows that the upper Turonian sandstones unit is composed of 11 layers including 7 reservoir layers (A, B, C1, C2, D1, D2, E) and 4 intra-reservoir layers (1, 2, 3 and 4) controlled by faults systems. The model provides basic framework necessary for geological characterization of the reservoir through a static model. The results of this study can be used for petrophysical modeling, Gross Rock Volume (GRV) determination and technical redevelopment of the field. 展开更多
关键词 sèmè Oilfield Abeokuta Formation H6 Horizon Petrel software structural modeling Layers
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LINEAR ACTIVE STRUCTURES AND MODES (Ⅱ) —DISCRETE SYSTEMS AND BEAMS
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作者 王永刚 龚靖School of Civil Engineering and Mechanics +10 位作者 Xi'an Jiaotong University Xi'an 710049 P.R.China Department of Civil Engineering Northeast China Institute of Electric Power Jilin 132012 P.R.China 张景绘School of Civil Engineering and Mechanics Xi'an Jiaotong University Xi'an 710049 P.R.China 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2004年第8期854-862,共9页
The basic concepts about the active structures and some attributes of the modes were presented in paper “Liner Active Structures and Modes]( I) ". The characteristics of the active discrete systems and active be... The basic concepts about the active structures and some attributes of the modes were presented in paper “Liner Active Structures and Modes]( I) ". The characteristics of the active discrete systems and active beams were discussed, especially, the stability of the active structures and the orthogonality of the eigenvectors. The notes about modes were portrayed by a model of a seven-storeyed building with sensors and actuators. The concept of the adjoint active structure was extended from the discrete systems to the beams that were the representations of the continuous structures. Two types of beams with different placements of the measuring and actuating systems were discussed in detail. One is the beam with the discrete sensors and actuators, and the other is the beam with distributed sensor and actuator function. The orthogonality conditions were derived with the modal shapes of the active beam and its adjoint active beam. An example shows that the variation of eigenvalues with feedback amplitude for the homo-configuration and non-homo-configuration active structures. 展开更多
关键词 I) ". The characteristics of the active discrete systems and active beams were discussed especially the stability of the active structures and the orthogonality of the eigenvectors. The notes about modes were portrayed by a model of a seven-s
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基于三层B/S模式的飞机结构损伤信息管理系统设计与实现 被引量:2
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作者 田应权 尹瑞雪 《机械工程师》 2023年第6期36-39,共4页
当飞机结构出现损伤或服役一定时间后,就要根据维修手册规定的维修信息制定维修计划和开展维修工作。而飞机结构修理信息的管理涉及庞大的数据,文中提出一种飞机结构损伤信息管理系统,该系统包括损伤信息管理、报废管理等功能。系统调... 当飞机结构出现损伤或服役一定时间后,就要根据维修手册规定的维修信息制定维修计划和开展维修工作。而飞机结构修理信息的管理涉及庞大的数据,文中提出一种飞机结构损伤信息管理系统,该系统包括损伤信息管理、报废管理等功能。系统调试结果表明,通过该系统的开发,不仅具有减少维修人员工作量、降低维修工作成本、实现维修部门间信息共享的优点,还可以根据损伤的数据对飞机的可靠性、安全性进行评估,保障飞行安全,为飞机结构的损伤信息提供了智能化管理系统。 展开更多
关键词 飞机 结构损伤 b/s模式 信息管理
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基于B/S架构的汽车工程数据云平台的设计与实现
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作者 白庆平 冯毅 +2 位作者 万鑫铭 周佳 程端前 《汽车工程学报》 2023年第6期923-928,共6页
汽车产品开发愈发需要海量且高质量的基础数据作为支撑,汽车工程数据体系非常庞杂且彼此间关联度强,因此,针对汽车工程数据库开发,需站在汽车产品开发者和项目管理者角度为其提供更柔性化、可视化、深度化的数据服务。开发了高压缩比的... 汽车产品开发愈发需要海量且高质量的基础数据作为支撑,汽车工程数据体系非常庞杂且彼此间关联度强,因此,针对汽车工程数据库开发,需站在汽车产品开发者和项目管理者角度为其提供更柔性化、可视化、深度化的数据服务。开发了高压缩比的图形引擎,并设计了一种基于B/S架构的汽车工程数据管理平台,以轻量化的三维模型为载体实现工程数据的强关联,较大程度地解决了汽车工程数据管理分散易丢失、完整性和一致性差、不易检索和无法进行数据挖掘等痛点问题,为汽车工程数据管理和重用提供了一个新的思路。 展开更多
关键词 汽车工程数据 三维模型轻量化 b/s架构 数据管理
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基于B/S技术的应用电子网络教学模型分析 被引量:2
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作者 白浪锋 《集成电路应用》 2023年第9期172-173,共2页
阐述应用电子技术专业网络教学系统设计方案,包括功能设计、网络教学模型设计、功能架构设计,该系统采用三层B/S结构,能够提升电子技术专业网络教学的开放性和通用性。
关键词 网络教学模型 b/s结构 sQL数据库
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Brain networks modeling for studying the mechanism underlying the development of Alzheimer’s disease 被引量:3
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作者 Shuai-Zong Si Xiao Liu +2 位作者 Jin-Fa Wang Bin Wang Hai Zhao 《Neural Regeneration Research》 SCIE CAS CSCD 2019年第10期1805-1813,共9页
Alzheimer’s disease is a primary age-related neurodegenerative disorder that can result in impaired cognitive and memory functions.Although connections between changes in brain networks of Alzheimer’s disease patien... Alzheimer’s disease is a primary age-related neurodegenerative disorder that can result in impaired cognitive and memory functions.Although connections between changes in brain networks of Alzheimer’s disease patients have been established,the mechanisms that drive these alterations remain incompletely understood.This study,which was conducted in 2018 at Northeastern University in China,included data from 97 participants of the Alzheimer’s Disease Neuroimaging Initiative(ADNI)dataset covering genetics,imaging,and clinical data.All participants were divided into two groups:normal control(n=52;20 males and 32 females;mean age 73.90±4.72 years)and Alzheimer’s disease(n=45,23 males and 22 females;mean age 74.85±5.66).To uncover the wiring mechanisms that shaped changes in the topology of human brain networks of Alzheimer’s disease patients,we proposed a local naive Bayes brain network model based on graph theory.Our results showed that the proposed model provided an excellent fit to observe networks in all properties examined,including clustering coefficient,modularity,characteristic path length,network efficiency,betweenness,and degree distribution compared with empirical methods.This proposed model simulated the wiring changes in human brain networks between controls and Alzheimer’s disease patients.Our results demonstrate its utility in understanding relationships between brain tissue structure and cognitive or behavioral functions.The ADNI was performed in accordance with the Good Clinical Practice guidelines,US 21 CFR Part 50-Protection of Human Subjects,and Part 56-Institutional Review Boards(IRBs)/Research Good Clinical Practice guidelines Institutional Review Boards(IRBs)/Research Ethics Boards(REBs). 展开更多
关键词 nerve regeneration Alzheimer’s disease graph theory functional magnetic resonance imaging network model link prediction naive bayes topological structures anatomical distance global efficiency local efficiency neural regeneration
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基于B/S结构的多核微处理器实速故障诊断技术
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作者 高吉普 徐长宝 +2 位作者 辛明勇 陈军健 刘德宏 《电子设计工程》 2023年第22期171-175,共5页
针对目前使用的g-超条件诊断度技术、强鲁棒性开路故障诊断策略受到多核微处理器并发不确定性影响,导致诊断效果差的问题,提出了基于B/S结构的多核微处理器实速故障诊断技术。构建基于B/S结构的多核微处理器,并对其故障诊断原理展开详... 针对目前使用的g-超条件诊断度技术、强鲁棒性开路故障诊断策略受到多核微处理器并发不确定性影响,导致诊断效果差的问题,提出了基于B/S结构的多核微处理器实速故障诊断技术。构建基于B/S结构的多核微处理器,并对其故障诊断原理展开详细分析。设置微程序改变目录产生过程,通过监控读写事务的等待时间,判断死锁故障。以单输出响应为例,在输入激励作用下,基于扫描链的故障输入激励与输出响应诊断链路故障。由性能评估结果可知,该技术除了处理管道吞吐项目比标准时间长1 s外,其余所有项目处理时间均在标准时间范围内,具有良好的诊断效果。 展开更多
关键词 b/s结构 多核微处理器 实速故障诊断 死锁故障 动态可配置
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