公路路面工程基层施工管理问题及优化策

公路工程是我国完整交通运输体系的重要组成部分。目前,针对公路路面工程施工建设提出了很多新的要求。在公路路面工程实际施工建设期间,要求重点做好基层施工管理。基层施工是公路路面工程施工的关键性内容,是否能够保证基层施工质量,直接关系着公路路面工程的质量。通过开展高质量管理工作,更有利于把握其中各项技术、各个环节、各道工序,结合工程实际情况针对性制定施工方案与管理方案,达到理想的工程建设效果。

初中美术课堂有效教学的优化策略

美术的本质是为了让学习者能体会到审美的愉悦,感悟到宇宙秩序的优美,带动本人的想象力和创造力,逐步实现学习者的人格的均衡发展。初中美术教师要改变自我存在已久的错误的教学模式,继而让更多的学生在学习美术时能从美术的世界中吸吮到更多的艺术精华,由此浇灌到本人的身心,让个体的能力和学习智慧都能得到相应的提高。教师要创设出更加和谐的学习氛围以推动学生进步。

面向缓存命中率的命名数据网络缓存优化策略

针对命名数据网络(named data networking,NDN)传统缓存策略存在缓存命中率较低、平均路由跳数较高的问题,提出了面向提高缓存命中率的缓存优化策略。对于每个路由节点,结合当前已缓存内容块的命中次数,以及请求命中的时间特性计算各个内容块的动态优先权值;然后根据此值进行缓存内容块的替换,保留当前请求率高且预计未来请求率高的内容块。在此基础上,根据内容请求路径上各路由节点缓存内容的优先权平均值,设计了高优先权缓存决定策略,从而选择合理的缓存放置节点。仿真实验结果表明,相较于典型的NDN缓存策略,该策略能有效提高缓存命中率,降低平均请求跳数。

混合动力汽车能效优化与控制策略研究

随着环境问题和能源危机的日益严重,混合动力汽车作为一种节能环保的交通工具,得到了广泛关注。能效优化和控制策略是混合动力汽车研究的重要方向,对于提高汽车性能、降低能耗、减少排放具有重要意义。本文旨在探讨混合动力汽车的能效优化和控制策略,以提高汽车的整体性能和燃油经济性。

事业单位人力资源管理优化与新策探究

对事业单位来说,人力资源是提升其管理能力非常重要的一个因素,而通过人力资源管理工作的优化,既有利于人才的持续性发展,还能够使事业单位拥有更强的核心竞争力。特别是在当前的时代背景下,管理的能力和水平已经成为事业单位彼此之间竞争的显著标志,所以应借助重视程度的提高以及对人力资源管理体系的优化调整来更好地应对复杂的市场形势,进而让通过相关问题的有效解决,来积极发挥人力资源的实际作用。基于此,本文以人力资源管理概述为切入点,来进一步分析人力资源管理在事业单位中运用的意义,从而更深层次地探讨事业单位人力资源管理工作的不足以及相关的优化新策,希望能为该领域提供一些有帮助性的建议。

新高考背景下民办高校招生之困及优化之策

高考的改革,代表着高校选拔学生的方法发生改变,这为高校的招生带来一些急需解决的难题,尤其是新高考背景下民办高校在招生上存在多种困境,解决困境是关系到民办高校生存的重中之重。

新高考背景下民办高校招生之困及优化之策

2014年9月《国务院关于深化考试招生制度改革的实施意见》的颁布,标志着新一轮的高考改革综合试点开始启动,随后作为试点的上海市与浙江省分别发布了《深化高等学校考试招生综合改革实施方案》,截至2016年5月,已经有20个省份陆续出台高考改革方案,说明高考改革的攻坚战正式打响。高考的改革,代表着高校选拔学生的方法发生改变,这为高校的招生带来一些急需解决的难题,尤其是新高考背景下民办高校在招生上存在多种困境,解决困境是关系到民办高校生存的重中之重。

互联网行业预算管理的优化构建

在互联网行业中构建有效的预算管理体系,全面提升企业管理水平,是一项艰巨而又极具挑战性的任务。本文将以A互联网企业作为研究对象,对其内部预算管理中存在的问题进行深度剖析,并努力探寻优化和构建互联网企业预算管理体系的有效策略,旨在为促进我国互联网行业的全面发展提供有价值的参考。

社会体育指导与管理专业课程体系设计存在的问题与优化

鉴于在社会体育指导和管理毕业生就业问题和国家一流专业建设的问题,按照国家促进社会体育发展的国家政策,并按照“普 通大学”的要求和大学本科专业名录“和”国家教学质量标准“,国家和社会需求作为指导,专业培训目标作为基础,学生发展为中心, 并持续改进为建立”“一体两翼“社会体育指导与管理专业课程制度,即职业教育课程为主机构,随着提高学生的专业品质的系列课程,

改扩建公路路基路面设计优化措施的分析

近年来,随着中国国民经济的快速增长,越来越多的家庭利用额外的收入购买私家车。中国私家车数量的不断增加也给我们的交通系统带来了巨大的压力,拥堵和各种交通事故的发生频率激增。因此,为了更好地缓解我国高速公路交通压力,避免交通事故,应对坍塌、损坏、沉陷等各种安全问题,有必要对现有高速公路进行扩建。首先介绍了公路路基路面设计优化的必要性和原则,找出了公路工程改扩建的原因,并结合常见问题提出了公路路基路面设计的优化措施。

An Adaptive Spectral Conjugate Gradient Method with Restart Strategy

As a generalization of the two-term conjugate gradient method(CGM),the spectral CGM is one of the effective methods for solving unconstrained optimization.In this paper,we enhance the JJSL conjugate parameter,initially proposed by Jiang et al.(Computational and Applied Mathematics,2021,40:174),through the utilization of a convex combination technique.And this improvement allows for an adaptive search direction by integrating a newly constructed spectral gradient-type restart strategy.Then,we develop a new spectral CGM by employing an inexact line search to determine the step size.With the application of the weak Wolfe line search,we establish the sufficient descent property of the proposed search direction.Moreover,under general assumptions,including the employment of the strong Wolfe line search for step size calculation,we demonstrate the global convergence of our new algorithm.Finally,the given unconstrained optimization test results show that the new algorithm is effective.

Successful application of optimized aperture based CRS stack in the Shengli exploration area

The common reflection surface （CRS） stack is based on the local dip of the reflector and the reflection response within the first Fresnel zone. During the CRS stack all the information given by a multi-coverage reflection dataset can be successfully utilized. By now, it is known as the best zero-offset （ZO） imaging method. In this paper high quality CRS kinematic parameter sections are obtained by a modified CRS optimization strategy. Then stack apertures are calculated using the parameter sections which finally results in the realization of the CRS stack based on optimized aperture. Thus the advantages of CRS parameters are fully developed. Application to model and real seismic data reveals that, compared with the image section by a conventional CRS stack, the image section by CRS stack based on an optimized aperture improves both the signal-to-noise ratio and the continuity of reflection events.

Multi-objective integrated optimization based on evolutionary strategy with a dynamic weighting schedule

The evolutionary strategy with a dynamic weighting schedule is proposed to find all the compromised solutions of the multi-objective integrated structure and control optimization problem, where the optimal system performance and control cost are defined by H2 or H∞ norms. During this optimization process, the weights are varying with the increasing generation instead of fixed values. The proposed strategy together with the linear matrix inequality （LMI） or the Riccati controller design method can find a series of uniformly distributed nondominated solutions in a single run. Therefore, this method can greatly reduce the computation intensity of the integrated optimization problem compared with the weight-based single objective genetic algorithm. Active automotive suspension is adopted as an example to illustrate the effectiveness of the proposed method.

DSS Scheme for Operation Optimization Problem on Power Plants

Based on the target analysis of the operation optimization for power plants, a novel system scheme called operation optimization decision support system (OODSS) is brought forward. According to the structure and design thinking of decision support system (DSS), the overall structure of the OODSS is studied, and the scheme of the sub systems in the OODSS such as the user interface system, the problem processing system, the database system, the model base system, the expert system (ES) and the data mining sy...

Optimal quasi-periodic maintenance policies for two-unit series system

To investigate the effects of various random factors on the preventive maintenance （PM） decision-making of one type of two-unit series system, an optimal quasi-periodic PM policy is introduced. Assume that PM is perfect for unit 1 and only mechanical service for unit 2 in the model. PM activity is randomly performed according to a dynamic PM plan distributed in each implementation period. A replacement is determined based on the competing results of unplanned and planned replacements. The unplanned replacement is trigged by a catastrophic failure of unit 2, and the planned replacement is executed when the PM number reaches the threshold N. Through modeling and analysis, a solution algorithm for an optimal implementation period and the PM number is given, and optimal process and parametric sensitivity are provided by a numerical example. Results show that the implementation period should be decreased as soon as possible under the condition of meeting the needs of practice, which can increase mean operating time and decrease the long-run cost rate.

数字治理时代养老服务供给的互动服务模式:特质、问题及其优化之策

在数字治理时代,以大数据为核心的信息技术的快速发展与应用普及,对公共服务的供给实践产生了深刻的影响,一种基于大数据的互动服务模式逐渐成为公共服务供给的主流。本文从服务管理、资源整合、供需对接、服务产品等维度,考察了养老服务供给互动服务模式的典型特质,对其在需求表达、服务回应、服务递送、服务获取等方面的主要问题进行了探析,在此基础上提出了有针对性的对策思考,以期提升数字治理时代养老服务供给的整体效能。

Plan and Design of Landscapes as a Part of Construction of Beautiful Village

Construction of beautiful villages is an integral part of No.1 file issued by the central government and rural landscape planning plays an important role. The research reviewed the status quo of beautiful village construction, analyzed rural landscape planning and the optimized way for rural landscape planning, providing theoretical references for construction of beautiful village construction.

农村水污染治理问题及其解决措施探析

在当前新农村建设的过程中,进一步实现绿色环保发展是综合理念,因此农村的水污染环境必须得到重视。本文便是结合农村水污染治理问题和解决策略进行分析,意在通过本文论述,能够进一步提升农村的水污染治理质量,真正打造绿色环保可持续发展的新农村。

Application of new VBHF optimization strategy to improve formability of automobile panels with aluminum alloy sheet

A VBHF(Variable Blank Holder Force) optimization strategy was employed to determine the optimal time-variable and spatial-variable BHF trajectories,aiming at improving the formability of automobile panels with aluminum alloy sheet.The strategy was implemented based on adaptive simulation to calculate the critical wrinkling BHF for each segmented binder of the Numisheet' 05 deck lid in a single round of simulation.The thickness comparison of the stamped part under optimal VBHF and constant BHF shows that the variance of the four sections is decreased by 70%,44%,64% and 61%,respectively,which indicates significant improvement in thickness distribution and variation control.The investigation through strain path comparison reveals the fundamental reason of formability improvement.The study proves the applicability of the new VBHF optimization strategy to complex parts with aluminum alloy sheet.

PCA weight and Johnson transformation based alarm threshold optimization in chemical processes

To alleviate the heavy load of massive alarm on operators, alarm threshold in chemical processes was optimized with principal component analysis(PCA) weight and Johnson transformation in this paper. First, few variables that have high PCA weight factors are chosen as key variables. Given a total alarm frequency to these variables initially, the allowed alarm number for each variable is determined according to their sampling time and weight factors. Their alarm threshold and then control limit percentage are determined successively. The control limit percentage of non-key variables is determined with 3σ method alternatively. Second, raw data are transformed into normal distribution data with Johnson function for all variables before updating their alarm thresholds via inverse transformation of obtained control limit percentage. Alarm thresholds are optimized by iterating this process until the calculated alarm frequency reaches standard level(normally one alarm per minute). Finally,variables and their alarm thresholds are visualized in parallel coordinate to depict their variation trends concisely and clearly. Case studies on a simulated industrial atmospheric-vacuum crude distillation demonstrate that the proposed alarm threshold optimization strategy can effectively reduce false alarm rate in chemical processes.