浅论云南机床工具行业竞争力

从云南机床工具行业发展的历史沿革出发,着重从宏观层面探讨了云南机床工具行业的竞争优势;同时,对云南机床工具行业发展中存在的主要问题进行了讨论,并提出相应解决问题的思路和对策。     

数控刀具预调装置的项目教学法探索

项目教学法是工科类高校先进的教学手段,本文通过对数控刀具预调装置的课题阐述了对项目教学法的认识,以及如何在现代制造技术教学中应用项目教学法完成数控刀具预调装置的课题,从而不断完善现代制造技术教学体系。     

数控机床故障诊断与维修课程“做中学”教学模式的研究与实践

项目教学法是行动导向教学法中的一种,强调"教、学、做"相统一,重在"做中学"。通过结合实例,详细介绍了项目教学法在数控机床故障诊断与维修课程中的具体应用,包括学习项目的确定、具体实施过程及课程评价方法。通过实施"做中学"的教学模式,学生能够把理论知识与实践操作有机地结合起来,能有效地培养他们的团结合作、分析问题和解决问题等综合能力。     

质量管理体系在高精大型机床制造、服务中的实际应用

高精大型机床制造、服务过程中常遇到某些实际问题，文章结合ISO9000标准质量管理八大管理原则中某些原则的实际应用对其进行分析，并阐述尤其是在为用户服务方面，采取多种行之有效的实施办法，取得了直接的效果，而在技术创新开发新产品中抓住机遇，迎合市场需求，能让开发高精大型机床产品取得成功。     

高速PCB设计中信号完整性的仿真与分析

讨论了高速PCB设计中涉及的定时、反射、串扰、振铃等信号完整性（SI）问题，结合CADENCE公司提供的高速PCB设计工具Specctraquest和Sigxp，对一采样率为125 MHz的AD／DAC印制板进行了仿真和分析，根据布线前和布线后的仿真结果设置适当的约束条件来控制高速PCB的布局布线，从各个环节上保证高速电路的信号完整性。     

The Application of the BSC in Enterprise Strategy Management

As an achievement appraisal tool, the Balanced Scorecard （BSC） is applied in enterprise＇s strategic management. Combined the strategic goal with the applied process, through a series of index systems, it can make the enterprise＇s prospect accord with reality, as well as the strategic management organizational behavior operation keep unanimity with achievement in the information age.     

刍议犯罪工具痕迹利用率偏低的原因及对策

工具痕迹是犯罪现场上常见的一种痕迹。从办案的实际应用效果来看，工具痕迹的发现提取率、检验鉴定率，与手印、足迹、枪弹痕迹相比相差甚远。随着社会主义法律建设的不断完善，司法体制改革的不断推进，工具痕迹检验鉴定技术工作正面临越来越严重的挑战和发展机遇。为了解决这些问题，笔者对工具痕迹利用率偏低的主要原因进行了调研分析，提出了提高工具痕迹利用率的对策。     

数字地面模型新进展：TIN2.0、3D表面 塑型线和自由形态建模工具

竖向设计是人类在景观中进行的基本活动。人类对 室外空间的任何干预都涉及对地表形态的设计。在过去的几十 年中，数字设计的发展不仅改变了表现的方法，而且改变了设 计的过程。就地形建模而言，该技术实现了三维可视化和任务 自动化，例如土方计算和自动产生横截面。但在重点考察最新 的建筑信息模型(BIM)如何应用和实施这项技术时，不难发现 地形建模过程并没有充分利用技术带来的潜在优势。实际上， 三维建模工具、基于组件的建模和分析、设计验证，以及协同 设计是可以集成到数字地面模型中的。识别了现有数字建模解 决方案中的主要缺陷并为其进一步发展提供机会，提出了一 项整合性的数字地面模型建模过程，该过程引入了TIN2.0曲 面，对现有的TIN曲面进行了升级，允许在同一曲面中同时存 在规则三角网和不规则三角网，并开发了一套基于三维线和自 由形态设计工具的建模工具，推动风景园林信息模型框架的发 展以满足风景园林师及其他专业人士，如建筑师和土木工程师 进行地形建模的需求。通过案例研究对提出的建模过程进行了 测试和验证。结果表明，生成的数字曲面具有较高精度，可以 具象地表现地形，允许设计过程在三维线或自由形态设计工具 的基础上进行。所有地形建模均在三维数字模型上进行     

Enhanced network effects and stochastic modelling in generation expansion planning: Insights from an insular power system

Electricity generation capacity expansion is driven by both economic and socio-political realities. Policy makers determine public infrastructural decisions, such as climate and renewable targets, and transmission infrastructure, and the optimal generation capacity expansion follows. Policy makers therefore require planning models that can determine the optimal generation capacity mix in the long run under various scenarios, including policy choices. This work presents a planning model based on linearised alternating current optimal power flow which determines optimal generation capacity expansion and operation, in a least-cost manner, given global and local technical constraints, as well as policy decisions. We apply the model to a test case of the island of Ireland, which has two weakly interconnected systems, high renewable generation targets and low storage and interconnection. We determine the optimal generation expansion and operation out to 2030 considering the effects of increased multi-area interconnection, existing fossil fuel generation phase-out and increased renewable generation targets and carbon prices. Our results find that costs and emissions are driven primarily by the decommissioning of old inefficient generation units. High renewable targets, on the other hand, render increased carbon prices relatively ineffective in reducing system emissions. Furthermore, high renewable generation targets crowd out low-carbon power generation options such as carbon capture and storage (CCS). The strategic north-south interconnection has little effect on renewable energy source installations required to achieve renewable power generation targets but does impact on security of supply and the congestion level across the island.     

Calculated risk? A cybersecurity evaluation tool for SMEs

Small and medium-sized enterprises (SMEs) are among the least mature and most vulnerable in terms of their cybersecurity risk and resilience. In this article, we describe a methodology developed using the National Institute of Standards and Technology’s (NIST) Cybersecurity Framework (CSF) as a starting point. The NIST CSF does not meet all the needs of the SME IT leader, but it offers a solid foundation for a useful evaluation and recommendation methodology. We propose an SME cybersecurity evaluation tool (CET) that consists of a 35-question online survey to be completed by IT leaders to self-rate their maturity within the five NIST framework categories: identify, protect, detect, respond, and recover. We outline this approach to cybersecurity risk management before discussing its effectiveness and implications for practitioners.