钢厂铁路运输无人化道口安全监控

钢厂的铁路道口经历了多次升级，由原来道口现场有人值守道口，改为道口现场无人值守的远程集控；再由远程人工操作、自动监控、升级到道口智能化自动运行；实现无人化道口安全监控，为钢厂铁路运输自动驾驶、运输过程无人化奠定基础，保障运输列车通过道口时安全畅通；无人化道口是钢厂铁路无人化运输系统中不可缺少的重要环节。     

浅探莱钢铁路道口问题及对策

铁路道口是事故多发地点，针对莱钢铁路道口在安全管理上存在的问题，提出互动互控共同负责管理模式，营造规范的铁路道口行车次序和良好的道口交通环境，减少道口事故，确保安全生产。     

铁路道口铺面安全分析与对策

从厂内铁路道口铺面现状谈起,对铁路道口故障影响因素进行分析;结合厂区道口现状重点阐述铺面材质的利弊和改进效果。目的就是从根本上减少铁路道口铺面设备的故障率,从而确保铁路道口铺面区域内的行车安全。     

整体道口板在营口中板厂的应用

针对营口中板厂道口的现状,分析造成道口病害的原因。经过方案比选,选择并介绍一种适合钢铁企业重载交通的道口形式——整体道口板,并详细分析其设计特点及施工要点。     

橡胶道口板的应用与分析

对钢筋砼道口板铺制的传统式铁路平交道口和新式橡胶道口各自的特点进行了分析，介绍了橡胶道口板在莱钢的应用。     

铁路橡胶道口板的分析与应用

对钢筋混凝土道口板铺制的传统式铁路平交道口和新式橡胶道口各自的特点进行了分析，介绍了橡胶道口板在莱钢的成功应用。     

钢铁联合企业铁路平交道口设计

拟结合设计经验,从总图设计、道口铺面选择、道口分级、道口安全设施设计几方面,系统阐述如何开展铁路平交道口设计,同时明确注意事项及要点,提出合理化建议。     

冶金企业铁路道口自动信号系统的应用

根据冶金企业铁路线路、运输组织方式、道口设置的特点,分析比较现有几种点式传感器铁路道口自动信号系统的不同特性,结合实际工程的设计、施工,对有源传感器铁路道口自动信号系统的应用进行分析、探讨。     

道口自动信号设备及其运用

本文介绍宝钢引进道口信号设备及控制原理。及如何合理使用道口信号设备,以满足各种类型平交道口处的安全运输的需要。     

关于新钢公司铁路道口集中管理的探讨

目前,新钢公司道口员年龄结构老龄化十分严重,面临着集体退休的状况,看守人员急剧减少,公司难以短时间内培养出大量的看守人员;加之我部道口高达五十多个,看守人员的费用十分之高。针对目前的状况,本人阐述对于我部铁路道口集中管理的若干观点。     

石钢集中道岔平交道口自动报警控制系统

利用无源磁感应技术建立的铁路道口自动报警控制系统,实现了道口的无人值守,解决了石钢站场道岔集中区段内平交道口的交通难题。     

加强自主创新能力建设 推进钢铁产品结构优化

安钢集团公司已形成千万吨钢的生产能力，为进一步提高在日益加剧的钢铁市场竞争中的优势地位，明确提出了以加快建设千万吨精品板材基地为目标的“两大跨越”发展战略。本文结合近年来企业技术创新体系建设和产品结构调整经验，对进一步完善自主创新运行机制和推进钢铁产品结构优化进行了探讨，论述了自主创新体系建设的基本思路、结构框架和奋斗目标；围绕“两大跨越”发展战略的实施，提出了钢铁产品结构调整优化的基本构思。     

加热炉燃烧控制系统

本文介绍了在攀钢热轧板厂两座加热炉上成功使用的燃烧控制系统，对核心环节双交叉限幅串级比例控制原理予以了详细说明，作为成功范例，值得推广。     

Effects of roll crossing on the rolling process in four-high mills

Roll crossing can be utilized as a method for profile and flatness control in a rolling mill. The estimation of the profile adjusting range by calculating the elastic roll-gap deflection reveals that roll crossing has a similar effect on the profile as positive bending. Under the assumptions made in the calculations roll crossing is an effective method as profile and crown actuator. Furthermore the effect of roll crossing on the flatness is qualitatively confirmed by rolling trials. Beyond the investigation of the effectiveness of roll crossing as profile and flatness actuator a 3-dimensional finite element simulation of the material flow in the roll gap was done. The results of these simulations, which were confirmed by rolling trials as well, showed that the rolled specimen warps out of the passline due to the crossing of the work rolls whereas the influence of roll crossing on the distribution of local plastomechanical values is negligible. Force components in axial direction are induced by crossing the rolls, which have to be compensated by additional bearings. For the determination of the amount of axial forces rolling trials on a laboratory four-high mill were carried out.     

Determination and analysis of antigenic epitopes of prostate specific antigen (PSA) and human glandular kallikrein 2 (hK2) using synthetic peptides and computer modeling

In comparison with pyeloplasty, endourologic procedures for the treatment of ureteropelvic junction obstruction offer good success rates with less morbidity and a shorter hospitalization; however, studies have found lower success rates and increased complications in patients with crossing vessels. Conventional diagnostic angiography and intravenous urography have both been used to identify crossing vessels at the UPJ; but, a reliable, less invasive, less costly, and simpler preoperative procedure to identify crossing vessels is needed. Helical CT with CT angiography is a promising noninvasive technique for the identification of crossing vessels at the ureteropelvic junction, which can be used for surgical planning of endourologic treatment of UPJ obstruction.     

基于首钢6H3C轧机中间辊交叉的理论分析

首钢特钢冷轧厂6H3C冷轧单机架是目前世界上第一台采用中间辊交叉设计思想的轧机。在轧制过程中,中间辊交叉带来极大的轴向力。基于首钢特钢6H3C轧机,采用影响函数法建立轧辊的弹性变形解析模型,分析了交叉角对于辊间压力分布、横向厚度分布以及轴向力的影响规律,解释了过大交叉角产生轴向力无法正常使用的原因,同时也为后续的板形控制手段优化提供理论依据。     

浅谈城市道路立交的概念性方案设计

通过南昌市某快速路的设计实例，认识到搞好快速路沿线各交叉口的方案设计是快速路规划设计的关键内容。道路交叉口设计应注重交通功能分析，满足路口交通需求，同时也不能忽视立交的景观要求。     

A model of regulation of crossing over

Very high variability is characteristic of crossing over. A mechanism of crossing-over variation is proposed on the basis of new data obtained by Chadov et al. Variations are believed to be determined by the character of pairing preceding crossing over and the mechanism of transforming contacts into exchanges. Pairing of homologues is assumed to involve consecutive formation of local contacts between them. The onset of this process depends of the chromosome structure. Exchanges appear in contact sites. Determination of crossing-over sites occurs when the contact number in a meiocyte reaches a certain threshold. The number of contacts formed in each chromosome pair by this time can vary. This results in variations of all parameters of crossing over: recombinational length (RL), exchange number per chromosome arm, and interference. The effect of a chromosome aberration on crossing over in aberrant and heterologous chromosome pairs, i.e., the interchromosomal effect on crossing over (IEC) and the mechanisms determining exchange number and interference, are explained on the basis of the proposed model.     

Examining the impact of traffic environment and executive functioning on children's pedestrian behaviors.

The process of integrating visual information and planning a safe crossing is cognitively demanding for many young children. We assessed relations between traffic characteristics, aspects of children's executive functioning (EF), and pedestrian behavior, with the aim being to determine whether well-developed EF would predict safer pedestrian behaviors beyond the contributions of child demographic and traffic environment factors. Using the pretend road method, we studied a sample of 83 children aged 6–9 in a series of 5 crossing trials beside a real road in response to actual traffic conditions. Traffic characteristics and pedestrian behaviors were observed and measured across crossing trials. Both traffic characteristics and EF, most notably cognitive efficiency, were strongly related to children's pedestrian crossing behaviors. Traffic characteristics were also found to interact with children's ability to monitor their crossing performance. Examining developmental influences in pedestrian injury etiology broadens researchers' knowledge of and ability to prevent injuries by moving beyond describing what happens to children and examining why pedestrian injuries occur. (PsycINFO Database Record (c) 2010 APA, all rights reserved)