民族特色在旅游商品街规划中的应用和体现

以云南新平戛洒镇花街的规划为例,对传统的建筑理念及建筑形式如何更好地融会到现代建筑理念、建筑形式与科学技术中进行了分析,从而更好地满足现代生活对于物质及文化的同步需要。     

Preparation of Ca- Fe oxygen carrier using metallurgical dust

Chemical chain combustion technology is a new combustion technology that achieves efficient and low energy separation for CO2 capture. CaSO4- Fe2O3 oxygen carrier was prepared by sol- gel method from blast furnace slag containing iron, and X- ray diffraction (XRD) and scanning electron microscopy and energy dispersive X- ray (SEM- EDX) were used to characterize the oxygen carrier particles. The results show that the CaSO4- Fe2O3 oxygen carrier prepared from iron metallurgical dust has a mass fraction of 93. 58%, a specific surface area of 10. 37cm2/g and a conversion rate of 67. 47% after reaction?? with coal powder, which has good reactivity. Combined with SEM and EDS analysis, the main cause of the decrease of carrier activity is the accumulation of coal ash during the cycle combustion process, resulting in complex and diversified carrier components, chemical reactions and agglomeration effects, and then carrier activity is reduced.     

Polyphosphates as inhibitors of surface mould growth on hard cheese during ripening

A novel treatment using polyphosphates to protect cheeses against superficial mould growth was assayed. The treatments were: control commercial paint with natamycin (I), commercial paint based on polyvinyl–water (II), immersion in a saturated solution of polyphosphate (III), immersion and commercial paint (IV), commercial paint of polyphosphate solutions (V) and immersion and commercial paint of a saturated solution of polyphosphates (VI). The cheeses were ripened for 6 months. Superficial mould growth was inhibited in groups IV and VI when compared to cheeses from the control group (I). Statistical sensory analysis made between cheeses from groups IV and I (control) showed no significant differences.     

Effects of Drying and Blanching on the Quality of Toona sinensis

[Objective]To explore the best T.sinensis processing technology.[Method]The T.sinensis was treated by hot wind drying,freeze drying and blanching,and the conten...     

矿山选矿用核子称放射源辐射水平调查

对某选矿厂使用的核子称的放射源进行了调查.结果表明:在放射源工作状态下,在距铅室表面5cm、100cm及200cm的前、后、左、右、上及下方位的各监测点所监测到的辐射剂量当量率,各方位均符合国家标准限值要求.辐射剂量估计的结果完全达到国家标准要求.核子称具有计量准确、操作简便、使用安全可靠等优点,值得推广使用.     

夏季通风抑制高水分小麦微生物活性的研究

在夏季高温环境下,试验了不通风(0 m/s)和以0.02、0.04、0.06、0.08 m/s的粮堆表面风速进行通风的情况下,水分含量分别为14.0%、14.5%和15.5%的小麦在不同时间的微生物活性变化.结果显示:在不通风的情况下,小麦中微生物活性随储藏时间延长而增长,水分含量15.5%的小麦在28 d达到安全储藏活性临界值(500 U).在以粮堆表面风速0.02⁰.08 m/s进行通风的情况下,上述小麦中的微生物活性均被显著抑制,且不同风速对小麦的微生物活性抑制结果差异不显著.在夏季高温环境中,高水分小麦以0.02 m/s的粮堆表面风速每天通风6 h可明显抑制其中的微生物活性,在一定时间内实现安全储藏.     

汽车用压缩天然气金属内胆纤维环缠绕气瓶的安装监督检验与质量控制

近些年,伴随国家对清洁能源和环境污染的重视,天然气汽车以其绿色排放、成本低廉等优点发展迅速,车用气瓶的需求量也与日俱增。车用气瓶安装是天然气汽车的质量安全环节中极其重要的一个方面,对其进行监督检验是保证天然气汽车安装质量和使用安全性的必要监督管理。通过对安装监检的重要性及现状、重点问题、应注意的问题、质量控制与建议等进行叙述分析,说明了安装监督检验的重要性。     

一步合成锡酸钠实验研究

介绍了一步合成锡酸钠的工艺方法,详细考察了碱锡质量比、液固比、反应时间等技术参数对锡反应率的影响,并选用优化条件参数进行了工业试验.工业试验结果表明,使用金属锡和工业氢氧化钠水溶液,加入氧化剂,在加温、加压条件下,可一步直接合成锡酸钠溶液,产出的锡酸钠产品质量达到了企业标准,操作人员劳动强度小,生产过程无三废排放.     

天生桥一级水电站溢洪道泄槽裂缝处理与分析

针对天生桥一级电站溢洪道泄槽的裂缝性状调查及产生原因分析,对不同类型的裂缝提出不同的解决办法。表面裂缝(小于0.2 mm)相对较多,除重点部位需要采取表面覆盖法处理外,其余部位基本不需处理。对较大裂缝(大于0.2 mm)进行长度、宽度、深度调查,研究制定修补方案及施工工艺,施工后进行复查和做好资料整编工作,为以后裂缝处理做好资料储备。在修复施工后,经过10余次泄洪(最大流量为4 900 m3/s)后检查,发现裂缝处理工作总体效果良好,但部分表面抗冲耐磨层又出现破坏,现场分析认为,施工时由于阴雨天较多,底涂层未充分干燥后直接进行表面抗冲耐磨层施工,导致两层层面接合较差,应在以后的加固中予以重视。