Industrial Requirements for Distributed SCM Tool

As software development comes to be viewed more and more as an engineering discipline, Software Configuration Management is increasingly recognised as a key technology in the development of software. The Esprit VISCOUNT project¹ aim is to implement an innovative Software Configuration Management (SCM) tool to use in a geographically distributed software development environment, a Virtual Software Corporation (VSC). The features implemented by the tool will be the following: ·Configurable process modelling ·Inter-working capabilities with COTS SCM tools ·Selective replication of archives ·Open to include plug-in applications (security mechanism, encryption, etc) This paper is based on the work undertaken as part of the VISCOUNT project, partially funded by European Union's Esprit Programme, and it describes the SIA (Societa' Italiana Avionica) requirements defined in the framework of VISCOUNT. This revised version was published online in August 2006 with corrections to the Cover Date.     

网站CI形象设计探索

CI形象的设计是企业形象的传播策略,网络是企业的对外窗口,因此网站CI形象既是传统CI形象的传承,又是传统CI形象的发展.讨论CI设计的组成元素,分析网络CI与传统CI的不同.     

Emulsification of waste cooking oil biodiesel blend with hydrogen peroxide to assess tailpipe emissions and performance of a compression ignition engine

Hydrogen peroxide (H₂O₂) is an excellent oxidant carrier that finds its use in combustion and fuel applications. In the present study, H₂O₂ (30% assay) is used as an emulsifier in waste cooking oil biodiesel blend (B20) and the emissions and performance in a compression ignition engine are assessed. Along with the neat B20, three blends of B20 with 0.5%, 1%, and 1.5% H₂O₂ concentrations are used. Increasing the concentration of H₂O₂ beyond 1.5% resulted in vapor lock in the fuel pump leading to a loss in injection pressure. An increase in the exhaust gas temperature was recorded with the increase in H₂O₂ concentration due to improved fuel properties, like, cetane number, thermal conductivity, and microexplosions of fuel droplets. However, NO_x emissions decreased mainly due to the presence of the hydroperoxyl group from H₂O₂. Analysis of variance was also carried out to assess the statistical significance of H₂O₂ on the responses and is seen that the maximum impact of H₂O₂ was positively influencing brake thermal efficiency (BTE), brake-specific fuel consumption (BSFC), hydrocarbon (HC), and NO_x. Compared with the B20 blend, H₂O₂ emulsified fuel with a concentration of 1.5% showed a substantial reduction of 53.7%, 28.6%, 14.2%, and 16.2% in the average emissions of CO, HC, smoke, and NO_x, respectively. Similarly, 7.9% and 7.1% improvement in the BTE and BSFC is obtained. However, more studies are required to ascertain the NO_x reduction mechanism and address issues of fuel vaporization at higher concentrations of H₂O₂.     

Impact of Internet gambling on problem gambling among adolescents in Italy: Findings from a large-scale nationally representative survey

AimsThe primary aim of the present study was to understand the impact of online gambling on gambling problems in a large-scale nationally representative sample of Italian youth, and to identify and then further examine a subgroup of online gamblers who reported higher rates of gambling problems.DesignData from the ESPAD^®Italia2013 (European School Survey Project on Alcohol and Other Drugs) Study were used for analyses of adolescent Internet gambling.SettingSelf-administered questionnaires were completed by a representative sample of high school students, aged 15–19 years.ParticipantsA total of 14,778 adolescent students.MeasurementsRespondents’ problem gambling severity; gambling behavior (participation in eight different gambling activities, the number of gambling occasions and the number of online gambling occasions, monthly gambling expenditure); Socio-demographics (e.g., family structure and financial status); and control variables were measured individually (i.e., use of the Internet for leisure activities and playing video games).FindingsRates of problem gambling were five times higher among online gamblers than non-online gamblers. In addition, factors that increased the risk of becoming a problem online gambler included living with non-birth parents, having a higher perception of financial family status, being more involved with gambling, and the medium preferences of remote gamblers (e.g., Internet cafes, digital television, and video game console).ConclusionsThe online gambling environment may pose significantly greater risk to vulnerable players. Family characteristics and contextual elements concerning youth Internet gambling (e.g., remote mediums) may play a key role in explaining problem online gambling among adolescents.     

Proximity to chipboard industries increases the risk of respiratory and irritation symptoms in children: The Viadana study

Emissions related to wood production processes are a recognized health hazard for professionally exposed subjects. The health effects of living close to wood industries are not known, particularly in the pediatric population. We aimed at investigating if living close to chipboard industries is a health hazard for the children in the Viadana district (Northern Italy).In December 2006, all the children (3-14 years) living in the Viadana district, where two big chipboard industries are located, were surveyed through a parental questionnaire (n = 3854). The children were geocoded, and the distance of their houses/schools from the closest wood plant was computed.Independently of sex, age, nationality, residential area, traffic, parents' education, passive/parental smoking, questionnaire compiler and his/her environmental concern, the children living at < 2 km from chipboard industries had a greater prevalence of respiratory (OR = 1.33, 95%CI: 1.11, 1.60), cough/phlegm (OR = 1.43, 95%CI: 1.08, 1.88), nose/throat/mouth (OR = 1.47, 95%CI: 1.23, 1.75), eye (OR = 1.24, 95%CI: 1.04, 1.48) symptoms, school-days lost (OR = 1.24, 95%CI: 1.04, 1.48), and emergency (OR = 2.14, 95%CI: 1.47, 3.11) and hospital (OR = 2.21, 95%CI: 1.17, 4.18) admissions. There was an inverse dose-response relationship between the adverse health outcomes considered and the distance from the plants. The attributable fractions for the children living close to the chipboard industries were substantial, ranging from 13% (eye symptoms) to 27% (cough/phlegm).The present findings suggest that emissions from chipboard industries might have a serious impact on children's health status and should therefore be reduced and closely monitored.     

Electrochemistry and XPS study of an imidazoline as corrosion inhibitor of mild steel in an acidic environment

The effect of 2‐(2‐heptadec‐8‐enyl‐4,5‐dihydro‐imidazol‐1‐yl)‐ethylamine on the corrosion behavior of mild steel in aqueous hydrochloric acid was investigated using weight loss measurements, polarization scans, electrochemical impedance, and X‐ray photoelectron spectroscopy (XPS). The inhibition efficiencies and coverage degrees increased with the concentration of inhibitor but decreased proportionally with temperature. It appears that the steric hindrance of the aliphatic chain on the imidazoline ring adsorption may affect inhibitor efficiency. Polarization curves showed that the oleic imidazoline (OI) acted essentially as a mixed type inhibitor, in which the blocking of active sites occurred. As a result of film formation, impedance spectra revealed a considerable increase in the charge transfer resistance as indicated by the second capacitive loop. XPS depth profile analysis observed the presence of nitrogen and carbon species on the inhibitor film, which were associated to the OI.     

定量AHP在危险行业事故隐患分析中的应用

危险行业的企业，通过定量AHP来比较它们之间哪个或哪些企业危险性较大。作者从影响企业安全的几个主要因素进行了定量分析。并进行排序以确定各个企业的相对的危险性程度。给本企业和上级部门在对安全方面问题的分析和决策提供较好的依据。     

Performance & emission analysis of HHO enriched dual-fuelled diesel engine with artificial neural network prediction approaches

Most of the studies on conventional fuel types that can be used in internal combustion engines have been made in order to improve performance values. Nowadays environmental problems have shown that emission values are more important and interest in low carbon alternative fuels has highly increased in recent years. In this study, performance and emission values of soybean biodiesel (B25) fuel mixture used in diesel engine were investigated in detail by making different ratios of hydroxy (HHO) enrichment (3, 5 and 7 L/min). HHO enrichments increased brake torque and power outputs with direct correlation to flow rate amount; at the same time brake specific fuel consumption has decreased. Also, one of the main objectives of this study is to predict the optimum hydrogen requirement against performance reductions and NO_x formations among test fuels (3, 5, and 7 L/min HHO enriched B25), too by using artificial intelligence. For developing the ANN structure, Levenberg-Marquardt (LM) learning algorithm was used to adjust the weights in the cascade forward network. The results show that the ANN model has 95,82%, 96,07%, and 92,35% estimation accuracies for motor torque, motor power, and NO_x emission, respectively.     

A review on conversion techniques of liquid fuel from waste plastic materials

The utilization of plastics has increased in packing sectors consistently, which lead indirectly to increased volumes of plastic wastes posing an environmental threat. Several utilization and recycling techniques of waste plastics are being practiced commercially around the world. In this article, recent conversion techniques of fuel oil from waste plastics and its utilization on a compression‐ignition engine are discussed. Recent statistics says most of the plastic wastes are generated from packing industries that contains polyethylene, polypropylene. In this connection, conversion techniques of polyethylene and polypropylene practiced frequently by researchers include catalytic processing, thermal degradation, and co‐processing. The effect of various parameters like catalysts, reaction temperature, and reaction time of the aforementioned conversion techniques are discussed in this review. Also, few research works about the utilization of waste plastic oil with a compression‐ignition engine along with engine performance and emissions in various blends of diesel with plastic oil are highlighted here. Copyright © 2017 John Wiley & Sons, Ltd.     

论中国企业导入 CI 的误区及成因分析

指出了中国企业导入ＣＩ（即企业识别系统）的过程中出现的几个主要误区，并对其成因进行了分析．