公用工程天然气管路设计要点

介绍了天然气的烃类组成和化学性质;论述了天然气管路设计必须遵循的原则;从燃料供应母管的设计及其相关设施的配置等方面,论述了天然气燃料供应系统的设计要点;针对管道压力控制、天然气放空方式、管路惰气吹扫中存在的设计误区,提出了相关解决办法。     

燃气管线置换及反置换的安全性及经济性分析

对燃气管道及设备投运或检修前置换的方法及过程进行了分析，在直接置换法和间接置换法的基础上，提出了中国过渡置换法，主要用于燃气的城市管网及长输管线。     

中间包采用气体净化除去钢中夹杂物的探讨

新型ＬＦＰ系列微机保护投入系统以后，使系统保护功能得了加强，使运行，维护更简单，更可靠，但是，在它与ＦＣＳ－２２０操作箱和其他保护配合工作的回路设计上存在一些缺陷，因此，我们作了一些改进，以满足系统运行的需要。     

三种非化学防治方法对烟草甲的控制作用

为寻找与环境相容性好、安全的烟草储藏害虫防治方式,研究了密封处理、脱氧剂降氧密封处理和充N₂气调处理3种非化学防治方式对主要储烟害虫烟草甲各虫态的控制作用效果。结果表明,所试3种非化学防治方式对烟草甲各虫态均有较好的控制效果。在相同的处理时间内,充N₂气调处理的控制作用效果最强,处理6 d后烟草甲各虫态校正死亡率均达到100%;其次是脱氧剂降氧密封处理,处理6 d后烟草甲各虫态校正死亡率均达到91%;简单密封处理控制效果相对较弱。因此,3种非化学防治方式有机配合使用具有巨大的应用潜力。     

空调系统空气净化器的设计安装与运行管理

介绍了集中式空调系统中常见的几种净化消毒装置,并给出了经济的净化方式;阐述了空调系统空气净化器的安装与运行管理,并给出了具体应用实例;可为空调设计人员、业主及技术管理人员提供技术参考。     

The clinical utility of personality subtypes in patients with anorexia nervosa.

Objective: Elucidation of clinically relevant subtypes has been proposed as a means of advancing treatment research, but classifying anorexia nervosa (AN) patients into restricting and binge-eating/purging types has demonstrated limited predictive validity. This study aimed to evaluate whether an approach to classifying eating disorder patients on the basis of comorbid personality psychopathology has utility in predicting treatment response and readmission in patients with AN. Method: Data were collected from 154 AN patients (M [SD] age = 25.6[9.4] years; 95.5% female; 96.8% Caucasian) at admission, discharge, and 3 months postdischarge from intensive treatment. Latent profile analysis of personality traits assessed at admission was performed to classify participants into personality subtypes, which were then used to predict outcomes at discharge and risk of readmission. Results: The best fitting model identified 3 personality subtypes (undercontrolled, overcontrolled, low psychopathology) that contributed significantly to multivariate models predicting study outcomes. Undercontrolled patients were more likely to have a poor outcome at discharge than overcontrolled (OR = 3.56, p = .01) and low psychopathology patients (OR = 11.23, p     

铝箔成品退火实现节能降耗的探讨与实践

结合我公司清洁生产中节能降耗方面的要求,对铝箔成品退火工序的主要耗电因素进行分析。通过试验,验证了吹洗量是铝箔成品退火过程中的最大耗电因素,总结了成品退火节能降耗的方法。     

裂解装置塔结垢的在线反冲处理

采用反冲技术在线处理塔结垢，取得了显著效果，确保了装置长周期高负荷稳定运行。     

Chemical and sensory properties of gas-purged,minimum-refined,extruded-expelled soybean oil

Developing low-cost oil refining methods is critical to business that use low-cost extrusion-expelling (E-E) to crush soybeans so they can capture the full value-added potential by marketing finished oils. Normal commodity (CO) and high-oleic (HO) E-E soybean oils were minimum-refined, gas-purged, and evaluated in frying applications. Degummed commodity oil (DCO) and minimum-refined (degummed and deacidified by Magnesol® adsorption) CO and HO oils were gas-purged with N₂ for 1 h at 150°C. For DCO, gas purging did not affect PV, oxidative stability index (OSI), FFA, color, and total tocopherol content, but p-anisidine value (AV) increased. For CO, the minimum-refined, gas-purged oil did not differ from degummed, gas-purged oil in terms of p-AV, OSI, tocopherol content, and color. PV and FFA were lower in minimum-refined, gas-purged oil. Minimum-refined, gas-purged HO had much higher OSI, tocopherol, and FFA levels than did minimum-refined, gas-purged CO. The oils were used to fry bread cubes at 185°C. Fried bread cubes were stored under various conditions and evaluated for flavor attributes. These oils were different in toasty/nutty, beany/grassy, and oxidized flavors, as well as overall flavor intensity and desirability. Minimum-refined, gas-purged oils produced fried bread cubes having initial flavor profiles similar to those fried in commercial oil; however, when fresh oils were used they were less stable to oxidation. Longer heating times of the minimum-refined, gas-purged oils produced bread cubes with better oxidative stabilities than those produced with commercial oil.     

浮法玻璃高速拉引下在线镀膜质量技术改进

由于目前浮法在线阳光镀膜工艺及设备所存在的局限性,不能适应浮法玻璃在线高速拉引下的镀膜玻璃的生产。镀膜设备在镀膜过程中出现的问题,影响了镀膜玻璃产品质量,被迫缩短了镀膜玻璃的生产周期,影响了企业的经济效益。通过进一步研发,对原有镀膜工艺和镀膜设备进行技术改进和提升,提高了镀膜玻璃产品质量,延长了镀膜玻璃生产周期。