Shared and Service-oriented CNC Machining System for Intelligent Manufacturing Process

To improve efficiency, reduce cost, ensure quality effectively, researchers on CNC machining have focused on virtual machine tool, cloud manufacturing, wireless manufacturing. However, low level of information shared among different systems is a common disadvantage. In this paper, a machining database with data evaluation module is set up to ensure integrity and update. An online monitoring system based on internet of things and multi-sensors ＂feel＂ a variety of signal features to ＂percept＂ the state in CNC machining process. A high efficiency and green machining parameters optimization system ＂execute＂ service-oriented manufacturing, intelligent manufacturing and green manufacturing. The intelligent CNC machining system is applied in production. CNC machining database effectively shares and manages process data among different systems. The prediction accuracy of online monitoring system is up to 98.8% by acquiring acceleration and noise in real time. High efficiency and green machining parameters optimization system optimizes the original processing parameters, and the calculation indicates that optimized processing parameters not only improve production efficiency, but also reduce carbon emissions. The application proves that the shared and service-oriented CNC machining system is reliable and effective. This research presents a shared and service-oriented CNC machining system for intelligent manufacturing process.

Service-oriented weapon systems of system portfolio selection method

Weapon system portfolio selection is an important combinatorial problem that arises in various applications,such as weapons development planning and equipment procurement,which are of concern to military decision makers.However,the existing weapon system-of-systems(SoS)is tightly coupled.Because of the diversity and connectivity of mission requirements,it is difficult to describe the direct mapping relationship from the mission to the weapon system.In the latest service-oriented research,the introduction of service modules to build a service-oriented,flexible,and combinable structure is an important trend.This paper proposes a service-oriented weapon system portfolio selection method,by introducing service to serve as an intermediary to connect missions and system selection,and transferring the weapon system selection into the service portfolio selection.Specifically,the relation between the service and the task is described through the service-task mapping matrix;and the relation between the service and the weapon system is constructed through the servicesystem mapping matrix.The service collaboration network to calculate the flexibility and connectivity of each service portfolio is then established.Through multi-objective programming,the optimal service portfolios are generated,which are further decoded into weapon system portfolios.

A Service-Oriented Architecture of Cyber-Physical System and Study on Two Key Issues

As the basis of designing and implementing a cyber-physical system (CPS), architecture research is very important but still at preliminary stage. Since CPS includes physical components, time and space constraints seriously challenge architecture study. In this paper, a service-oriented architecture of CPS was presented. Further, a two-way time synchronization algorithm for CPS service composition was put forward. And a formal method, for judging if actual CPS service meets space constraints, was suggested, which was based on space-π-calculus proposed. Finally, a case study was performed and CPS business process designed by the model and the proposed methods could run well. The application of research conclusion implies that it has rationality and feasibility.

Privacy Protection Framework with Defined Policies for Service-Oriented Architecture

Service-Oriented Architecture (SOA) is a computer systems design concept which aims to achieve reusability and integration in a distributed environment through the use of autonomous, loosely coupled, interoperable abstractions known as services. In order to interoperate, communication between services is very important due to their autonomous nature. This communication provides services with their functional strengths, but also creates the opportunity for the loss of privacy. In this paper, a Privacy Protection Framework for Service-Oriented Architecture (PPFSOA) is described. In this framework, a Privacy Service (PS) is used in combination with privacy policies to create privacy contracts that outline what can and cannot be done with a consumer’s personally identifiable information (PII). The privacy policy consists of one-to-many privacy rules, with each rule created from a set of six privacy elements: collector, what, purpose, retention, recipient and trust. The PS acts as an intermediary between the service consumer and service provider, to establish an unbiased contract before the two parties begin sending PII. It is shown how many Privacy Services work together to form the privacy protection framework. An examination of what current approaches to protecting privacy in an SOA environment is also presented. Finally, the operations the PS must perform in order to fulfill its tasks are outlined.

Unified Mogramming with Var-Oriented Modeling and Exertion-Oriented Programming Languages

The Service ORiented Computing EnviRonment (SORCER) targets service abstractions for transdisciplinary complexity with support for heterogeneous service-oriented (SO) computing. SORCER's models are expressed in a top-down Var-oriented Modeling Language (VML) unified with programs in a bottoms-up Exertion-Oriented Language (EOL). In this paper the introduction to mogramming (modeling and programing), which uses both languages, is described. First, the emphasis is on modeling with service variables that allow for computational fidelity within VML. Then, seven types of service providers, both local and distributed, are described to form collaborative federations described in EOL. Finally, the unified hybrid of SO modeling and SO programming is presented. Fourteen simple mogramming examples illustrate the syntax and usage of both VML and EOL.

An agent-based service-oriented integration architecture for chemical process automation

In reality, traditional process control system built upon centralized and hierarchical structures presents a weak response to change and is easy to shut down by single failure. Aiming at these problems, a new agent-based service-oriented integration architecture was proposed for chemical process automation system. Web services were dynamically orchestrated on the internet and agent behaviors were built in them. Data analysis, model, optimization, control, fault diagnosis and so on were capsuled into different web services. Agents were used for service compositions by negotiation. A prototype system of poly(ethylene terephthalate) process automation was used as the case study to demonstrate the validation of the integration.

Describing Service-Oriented Architecture by Extended Darwin

Describing Service-Oriented Architecture （SOA） is critical in the development of Web based system, in this paper, an approach for describing SOA by extended Darwin is proposed. The requirements for describing SOA, which are different from that of ordinary architecture, are highlighted firstly, and then a solution for extending Darwin is presented. Using the extended Darwin, service components and connectors can be described explicit by the extended construct, as well as precise operational semantics of SOA by the π-calculus. Finally an example of supply-chain management system is given for manifesting the effect of the extended Darwin.

A Collaborative Framework for Mould Design Based on Service-Oriented Architecture

Aiming at improving the traditional object-oriented three-layer architecture for collaborative design, a service-oriented framework for mould design is established by adding a Web service layer to decoupling the direct linking of user interface to functional modules,making the system being platform independent and programming language independent,greatly facilitating the reuse of existing software and hardware resources. .NET technology is adopted to implement the framework. An example scenario is introduced to demonstrate how the system works.

Rapid Service-Oriented Business Process Generation Method Based on Ontology

Service-oriented business process generation is a key activity in the ServiceOriented Architecture(SOA)business lifecycle,and most of the other activities such as application execution depend on the business process being developed.After the business requirements are acquired,a developer has to use specific programming technologies to orchestrate web services to generate a deployable business process.It is time-consuming to specify all the business processes from lowlevel web services,especially for an enterprise that focuses on a series of similar businesses.This paper proposes a rapid service-oriented business process generation method with domain-specific assets specified in ontology systems.Assets with different levels of granularity are reused to refine the high level business process framework for executable business processes using the Business Process Executional Language(BPEL).The new methodology significantly simplifies service-oriented business process generation by reusing assets to construct business processes.A business process generation tool is also implemented to support the efficient visual design of SOA processes with the proposed method.This paper verifies the proposed method using a shipment tracking case.The studies show that the number of reusable assets increases significantly as these projects progress,and the business process generation speed also increases at the same time.

Study on Construction of Service-oriented Government at Grass-roots Level and Development of Farmers' Professional Cooperatives

Features of farmers' professional cooperatives in China are introduced.The establishment of these organizations is spontaneous.Their operation shows self-government.And their targets are highly pertinent.Then,I analyze the existing problems in farmers' professional cooperatives and vacancy of government functions.These cooperatives are single in content,narrow in service field,not scientific in management mode,and low in efficiency.In addition,government policy support is not put in place for these cooperatives.In view of these situations,firstly,it is proposed to speed up construction of service-oriented government at grass-roots level and promote development of farmers' professional cooperatives.Secondly,it is suggested to set up awareness of service-oriented government and enhance guidance and service for farmers' professional cooperatives.Thirdly,we should increase financial support and guide these organizations to achieve a benign development.Fourthly,we should strengthen propaganda to raise popularity and influence power of these organizations.Fifthly,it is recommended to make clear the guidance and leading functions of regional supply and marketing cooperatives to raise service efficiency.Finally,we should establish scientific evaluation and incentive system to push forward healthy development of farmers' professional cooperatives.

Service-oriented air combat simulation architecture

Service-oriented air combat simulation architecture is proposed.The core design goal is high agility which represents the ability to accommodate the simulation requirements change.Its main idea is to design model units as services that can communicate and interoperate with any other services at runtime.A service is autonomous and is fully defined by a description contract which contains some combination of syntactic,semantic,and behavioral information.Based on the architecture,air combat simulation system can be described as an abstract composition of description contracts.It becomes concrete at run time as services that implement the constituent description contracts are discovered and bind.The whole process is a continuous run-time activity that responds to simulation needs and the availability of services.This provides benefits of implementation transparency and minimal dependency between models.Thus,simulation system can minimize the impact of change on it and increase the overall efficiency to respond to requirements change.

Customization and Performance of Service-Oriented Manufacturing Information System: The Mediating Effect of Information System Flexibility

The purpose of this paper is to provide empirical evidence for the validity of the relationship between service-oriented manufacturing information system (SMIS) customization and performance from three aspects: data flexibility, process flexibility and system flexibility. We select some questionnaires from the third round of High-performance manufacturing (HPM) data to construct the construct, verify the reliability and validity of the construct, extract principal components, and analyze the mediating effect by using multiple chain linear regression and structural equation model. The results show that SMIS customization has a significant impact on its performance, and this effect works through its flexibility. More specifically, it is the multiple chain mediation effect composed of data flexibility, process flexibility and system flexibility. The importance of SMIS customization and flexibility to the organization is made clear, which helps practitioners understand the internal mechanism that affects SMIS performance, so as to use limited resources to improve system performance.

Assessing Internal Software Quality Attributes of the Object-Oriented and Service-Oriented Software Development Paradigms: A Comparative Study

Service-Oriented Architecture (SOA) is becoming the dominant approach for developing and organizing distributed enterprise-wide applications. Although the concepts of SOA have been extensively described in the literature and in-dustry, the effects of adopting SOA on software quality are still unclear. The aim of the paper is to analyze how adopt-ing SOA can affect software quality as opposed to the Object-Oriented (OO) paradigm and expose the differential implications of adopting both paradigms on software quality. The paper provides a brief introduction of the architectural differences between the Service-Oriented (SO) and OO paradigms and a description of internal software quality metrics used for the comparison. The effects and differences are exposed by providing a case study architected for both paradigms. The quantitative measure concluded in the paper showed that a software system developed using SOA approach provides higher reusability and lower coupling among software modules, but at the same time higher complexity than those of the OO approach. It was also found that some of the existing OO software quality metrics are inapplicable to SOA software systems. As a consequence, new metrics need to be developed specifically to SOA software systems.

Service-Oriented Advanced Metering Infrastructure for Smart Grids

Advanced Metering Infrastructure （AMI） enables smart grids to involve power consumers in the business process of power generation transmission, distribution and consumption. However, the participant of consumers challenges the current power systems with system integration and cooperation and security issues. In this paper, the authors introduce a service-oriented approach to AMI aiming at solving the intercommunication problem and meanwhile providing a trust and secure environment for smart grids. In this approach heterogeneous systems expose services to the network. System integration and cooperation are done through service composition. A generic service interfacing method is designed to develop standardized services for heterogeneous power systems. Moreover, role-based access control mechanism is used to guarantee the secure access to smart grids. With the seamless communication between consumers and power systems and among power systems themselves, this service-oriented AMI can associate consumers with actual system workload and furthermore support the intelligent running of power systems.

老年慢性阻塞性肺疾病急性加重病人呼吸机相关性肺炎诺莫图模型的预测价值

目的筛选老年慢性阻塞性肺疾病(COPD)急性加重病人发生呼吸机相关性肺炎(VAP)的危险因子,验证以此构建的诺莫图预测模型的价值。方法以2016年12月至2021年11月聊城市第二人民医院收治的374例老年COPD病人为研究对象,按6∶4的比例,采用随机数字表法分为建模集(n=225)与验证集(n=149)。分析VAP的影响因素,建立诺莫图模型并评估其预测价值。结果VAP组病人年龄[(70.56±6.33)岁比(68.01±6.06)岁]、急性生理和慢性健康(APACHEⅡ)评分[(20.44±6.89)分比(12.20±4.60)分]、序贯器官衰竭(SOFA)评分[(7.65±3.32)分比4.12±1.82)分]、有吸烟史比例(71.9%比54.8%)、合并基础疾病≥3种比例(45.6%比18.5%)、过去90 d使用抗生素比例(63.2%比40.5%)、呼吸机通气时长≥4 d比例(77.2%比40.5%)、再次插管比例(80.7%比46.4%)较非VAP组升高(P<0.05)。logistic回归分析结果示,合并基础疾病≥3种(OR=2.78,P=0.027)、APACHEⅡ评分(OR=9.46,P<0.001)、SOFA评分(OR=2.99,P=0.010)、过去90 d使用抗生素(OR=2.71,P=0.015)、呼吸机通气时长≥4 d(OR=3.24,P=0.006)、再次插管(OR=3.65,P=0.004)是发生VAP的独立危险因素。建模集及验证集校准曲线结果均显示,构建的诺莫图预测模型校准度较好,ROC曲线下面积分别为0.87[95%CI:(0.82,0.93)]、0.83[95%CI:(0.75,0.92)]。结论通过合并基础疾病≥3种、APACHEⅡ评分、SOFA评分、过去90 d使用抗生素、呼吸机通气时长≥4 d、再次插管等危险因素建立的诺莫图模型对老年COPD急性加重病人发生VAP具有较好的预测价值。

食管癌内镜黏膜下剥离术后发生食管狭窄风险列线图构建与验证

目的探讨影响食管癌内镜黏膜下剥离术(ESD)术后发生食管狭窄的危险因素,并建立其风险列线图预警模型。方法回顾性分析2022年1月至2023年5月于南阳市中心医院行ESD治疗的94例食管癌患者的临床资料,依据患者术后是否发生食管狭窄残余将其分为狭窄组(n=20)和非狭窄组(n=74),比较两组患者的临床资料,采用二元Logistic回归分析法分析食管癌患者ESD术后食管狭窄的影响因素,构建列线图风险模型并进行验证。结果经单因素分析结果显示,年龄、性别、手术时间、食管癌家族史、病变部位、病理类别与食管癌患者ESD术后食管狭窄无关(P>0.05),而ESD手术史、病变环周范围、浸润深度、术后体位干预、创面材料覆盖、SEMS置入、术后抗炎药物使用、术后抗纤维化使用、病变纵径与食管癌患者ESD术后食管狭窄有关(P<0.05);经二元Logistic回归分析显示,病变环周≥3/4周、浸润深度m3~sm1、术后平卧体位、病变纵径≥50mm是食管癌患者ESD术后食管狭窄的独立危险因素(P<0.05),而SEMS置入、术后使用抗炎药物、术后使用抗纤维化药物是独立保护因素(P<0.05);Hosmer-Leme-show拟合优度检验结果显示,χ^(2)=2.263,P=0.972,受试者工作特征曲线(ROC)的曲线下面积为0.971(P<0.001,95%CI:0.940~1.000),灵敏度为95.00%,特异性为91.90%,最大约登指数为0.869,模型预测食管癌患者ESD术后食管狭窄发生的校准曲线总体与理想曲线趋势相同;模型回归方程Logit(P)=6.666×病变环周范围+4.399×浸润深度+3.938×术后体位干预-3.534×SEMS置入-3.891×术后抗炎药物使用-4.871×术后抗纤维化药物使用+3.513×病变纵径-6.577。结论食管癌患者ESD术后食管狭窄的发生受疾病和多种术后护理因素的影响,根据其危险因素建立的风险列线图预警模型具有较好的区分和预测能力,可为食管狭窄患者行ESD术后预防食管狭窄发生提供参考方案。

Research on the Impact of Digital Technology and Servitization on the Performance of Manufacturing Enterprises

This article mainly discusses the impact of digital technology and service-oriented on the performance of manufacturing enterprises.It first elaborates on the background of the trend of service-oriented manufacturing and the significance of its enterprises.Then,based on the impact of digital technology on the performance of manufacturing enterprises,several practical and feasible measures are proposed,mainly focusing on the long-term layout of service-oriented,shortening the low period,enhancing the competitive awareness of state-owned manufacturing enterprises,improving the driving force transformation,achieving simultaneous progress digitally,configuring digital and service-oriented elements,and eliminating the monopoly of digital resources.Followed by lowering the threshold for private enterprise resource acquisition,promoting financial digital development,breaking the financial dilemma of service-oriented manufacturing,continuously improving the performance level of manufacturing enterprises,and promoting the development of manufacturing enterprises.

普适计算软件体系结构研究

普适计算强调人、计算机以及环境的相互融合,这就对传统的软件技术提出了挑战。需要新型的软件架构与之相适应。本文以普适计算环境下的通用软件架构设计为目标,采用面向服务组件和分层次的设计原则,通过中心服务器的管理机制和服务整合的方法,提出了一种基于Kerberos认证机制的、面向服务的普适计算软件体系结构。这个软件架构的提出,解决了普适计算环境下设备的本地资源受限性、任务多样性、运行环境的异构性和访问的安全性等一系列问题;并将此软件架构应用于"普适计算智能办公系统"的软件实现中。

华北地区地壳上地幔P波速度结构

本文利用近震体波资料,研究了华北地区地壳和上地幔P波速度结构。根据华北地区的大地构造特征,分四个区域研究。结果表明,各区之间P波速度结构存在明显差异,在较活动地区壳内和地幔顶部均有低速层存在,而稳定地区则没有,作者认为,这种横向不均匀性和低速层的存在可能是构造活动区的最主要的特征。

新生儿缺氧缺血性脑病伴心肌损害的临床分析

目的探讨新生儿缺氧缺血性脑病(NHIE)伴心肌损害的心电图、血清心肌酶学改变与HIE分度的相互关系。方法对59例HIE伴心肌损害的患儿出生后48h以内的血清LDH(乳酸脱氢酶)、CK(肌酸激酶)、CK-MB(肌酸激酶同功酶)、HBDH(a-羟丁酸脱氢酶)的含量进行测定,并作心电图检查。结果43例(43/59)患儿心电图出现改变,重度组改变分别大于轻、中度组,轻度组大于中度组。经方差分析显示:心肌酶中CK、CK-MB变化与HIE的分度呈正相关性,差异显著(P<0.05);Q检验分析显示:轻度与重度间心肌酶变化也呈正相关性,差异显著(P<0.05),轻度与中度、中度和重度间无显著差异;T检验分析却显示:轻度组与中、重度组间心肌酶中CK-MB变化呈极显著性差异,P<0.01(t=2.741,P=0.008),而轻、中度组与重度组间无差异。12例(12/59)病人于出生后12h内出现心肌酶谱变化,而其中8例的酶谱变化出现于生后6h内。结论常规检测心肌酶、心电图对HIE伴心肌损害的程度及预后判断,以及指导临床治疗有较大参考价值;生后12小时内即可监测心肌酶学变化。