黑龙江省金龙达经贸有限责任公司

公司成立2002年,公司位于哈尔滨市南岗区中山路258号,企业类型为有限责任公司,经营范围：购销冶金矿产品,冶金炉料,焦炭,生铁,铁合金,金属材料,钢材,有色金属不含稀有金属,化工产品不含危险品,剧毒品,建筑材料,机械设备,炭素材料及石墨制品。     

老挝矿业

老挝位于东南亚地区,北临柬埔寨,南靠中国,西面是越南,东南部是缅甸,东北部是泰国,是一个国土面积仅有237,000平方公里的小国。2005年,人口总数为6,200,000。老挝是亚太地区最贫穷的国家之一,已知的矿产资源有铝土矿,黏土,煤,铜,白云石,黄金,石墨,石膏,石灰岩,石盐,蓝宝石,银,锡,及锌等。老挝2005年的国内生产总值增长率为7.3%,2004年增长率为6.3%。老挝具有得天独厚的地质环境优势,潜在的矿产有:锑,石棉,铋,钴,铁矿,瓷土,铅,褐煤,镁,钼,钾碱,硅沙,及钨等。另外,该国很可能储藏有煤,铜,黄金,铁矿,钾碱,岩盐,及锡等。据老挝工业及手工业部(M…     

Study on photodegradation of Azo dye by polyoxometalates/polyvinyl alcohol

A series of photocatalysts, K11[Ln(PW11O39)2]/PVA (Ln=La, Ce, Pr, Nd, Sm) were prepared by K11[Ln(PW11O39)2] (Ln=La, Ce, Pr,Nd, Sm) containing five kinds of lanthanides and polyvinyl alcohol as the support. The catalysts obtained were characterized by Fourier trans-form infrared spectra, UV-vis spectra, powder X-ray diffraction, and scanning electron microscopy, indicating that the structure of K11[Ln(PW11O39)2] and polyvinyl alcohol remained intact, respectively. The photocatalysts exhibited efficient catalytic activity to degrade methyl orange, Congo Red, Ponceau 2R. The maximal degradation conversions of the three kinds of dyes were 99.58%, 47.61%, 72.42%, respectively.     

家长义工：香港校园别样的景致

在香港校园里,常常有这么一群特殊的人,她们每天早早地来到学校,为学生测量体温,观摩学校早会,协助管理图书,课余为学生讲故事,中午帮学生盛饭,甚至为学校编辑刊物,放学为低年级学生辅导作业……俨然是学校的正式教师,其实是学生家长,她们为学校,帮老师做了很多事情,都是义务的,没有任何报酬,在香港,通常把她们称之为“家长义工”。     

江西铜业：期待矿铜产出

业绩略低于预期第三季度公司实现营业收入1471394万元,同比上涨30.67%,净利润91950万元,同比下降26.9%,每股收益0.30元,前三季度实现营业收入4154476万元,同比上涨45.46%,净利润369876万元,同比增长13.76%,每股收益1.22元,业绩略低于市场的普遍预期。     

Mn(Ⅱ)-EDTA电位滴定铜的催化指示电极及其应用研究

提出了在氨三乙酸(NTA,活化剂)存在下,以Mn(Ⅱ)催化NaIO4氧化结晶紫的反应指示滴定终点,以自制的结晶紫选择性电极为指示电极,Mn(Ⅱ)为滴定剂,EDTA为阻抑剂,催化滴定测定微量铜的新方法.该方法对试剂用量,酸度,温度,滴定剂浓度,滴定速度及干扰消除等进行了探讨,选择了适宜的实验条件.用于火药中微量铜的测定,样品平均回收率为98.17%,相对标准偏差为1.02%,结果与原子吸收光谱法测定结果相符.     

铅市分析

11月份以来,LME三个期铅价基本上单边下行,跌至近1150美元,接近10月下旬低点。后市走向,初步分析如下:利空因素:宏观经济陷入收缩或衰退,对铅消费影响最大的汽车行业,同样面临危机。铅消费需求毫无疑问已处于衰减之中。供应来看,一是冶炼厂,中国10月份同比增产21.17%,且从本公司铅精矿进口贸易来看,原料供应充足,因此,近期大量减产的可能性不大。二是近期库存,LME库存持续减少,目前仅4万吨多点,但中国有大量商业库存,且LME库存低的主要原因也是中国出口近零水平所致。     

火焰原子吸收光谱法测定高纯金锭中铜、银、铁、铅、铋、锑

提出了用火焰原子吸收光谱法测定金锭中Cu,Ag,Fe,Pb,Bi,Sb的方法。用乙酸乙脂萃取分离金,水相浓缩后测定6种待测元素,方法的检出限:Cu,Ag,Fe为0.021mg/L,Pb,Bi,Sb为0.24mg/L;回收率94%～106%;RSD小于10.6%。该方法快速、简便,样品用量少,测定结果与ICP AES法和国家标准方法一致。     

人物介绍

中国共产党优秀党员,中国工程院资深院士,国家一级教授,中南大学学术顾问,中国粉末冶金学科奠基人,原中南矿冶学院副院长,原湖南省科协主席,国际著名的材料科学及冶金学家、教育家黄培云同志因病医治无效,于2012年2月6日10时10分在长沙     

理事 张松江

张松江,男,1964年11月生,中共党员,大学本科,冶金高级工程师,铝电解高级技师,现任河南中孚实业股份有限公司副总经理。     

Slab-on-Grade versus Framed Slab

This paper presents comprehensive and practical engineering review (not mathematics or computer science paper) of the observed behavior of the two types of slabs that have been used for the bottom floor slabs, at grade and underground, of buildings in the United States and overseas. The typical design of the slab-on-grade (SOG) built in the United States is described. The design requires only nominal reinforcing steel, but modern day design also requires ground preparation and improvement as necessary, including underslab perforated drainage pipe network embedded in the granular subbase, riser pipes, and a series of pumps. Sealing at all slab isolation joints and waterproofing membrane or water barrier system are provided for water tightness. The framed slab is supported directly on the building framing and on the building foundation. The design can accommodate the soil and underground water pressure and in itself is watertight as the slab is cast monolithically with the structural walls and footings. The behavior of the SOG depends so much on the behavior (soil properties) of the soil strata on which the slab is resting on. It is sensitive to the variation of the soil conditions at and around building foundations, leading to uneven bumpy and cracked slab and leaking basement. These were demonstrated in the report of short- and long-term performances of various projects in Thailand and United States in the past 25 years. The paper refers to various analysis and design techniques that may be used to improve the design of both the SOG and the framed slab for serviceability and economy. It is concluded that both types of slabs may be selected to suit the functions and serviceability requirements of the buildings. The SOG requires less concrete and reinforcement than those for the framed slab counterpart, but when all other factors are considered including additional underslab drainage and pump system, operating, and long-term performance and maintenance, the overall costs of both slabs may not be far apart, yet the performance and integrity of the framed slab will certainly be superior.     

Relationship of hardiness and religiousness to depression and anger.

Both hardiness and religiousness share spirituality, in the sense of searching for meaning in one's life, and have been shown to have a buffering effect on stresses that maintains and enhances performance, morale, and health. This study investigates how hardiness and religiousness compare in their relationship to depression, anger, and the coping and social support mechanisms whereby they may have these relationships. Participants were military and governmental personnel who completed accepted measures of hardiness, religiousness, and other variables on a volunteer basis. Correlational and multiple regression analyses showed that, by comparison with religiousness, hardiness has the larger and more comprehensive negative relationship with depression and anger, and positive relationship with coping and social support. The conceptual and empirical implications of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

炼铁生产管理系统的开发与实践

介绍了天铁炼铁生产管理系统开发的情况,该系统采用ERP、MeS、PcS三层之间的数据集成,实现了炼铁生产物料跟踪,生产计划和配料管理及动态调整。提高了炼铁生产效率和铁水质量,降低了原、燃料消耗,达到炼铁生产管控一体化与生产过程优化。     

Static and Dynamic Data Reconciliation for an Irrigation Canal

This paper deals with the problem of fault detection and isolation in irrigation canals. We have developed a method which combines static and dynamic data reconciliation for the validation of measurements, detection, and isolation of sensors and actuator faults and reconstruction of missing data. Static data reconciliation uses static models at a regulation gate to validate measurements and detect sensor and actuator faults. It also enabled us to detect a drift in the stage discharge rating curve. The dynamic data reconciliation uses additional measurements and a dynamic model of the canal in order to validate measurements and detect faults and withdrawals. The combination of the two methods allowed us to distinguish between withdrawals and faults. Both methods are evaluated on measurements from a real irrigation canal located in the South of France.     

Formation and Evolution of the Jiuduansha Shoal over the Past 50 Years

The formation and geomorphic evolution of the Jiuduansha Shoal are investigated over the past 50 years in this paper. The sedimentary processes, formation, and geomorphic evolution of the Jiuduansha Shoal in the Yangtze River Estuary, eastern China, are analyzed based on digitized sea maps from 1945 to 2001, satellite images from 1975 to 2001, and field survey data in the spring-neap tidal cycle in the dry and flood seasons in 2003. The suspended sediment concentration and hydrodynamics of the North Passage and South Passage during the dry and flood seasons in the spring-neap tidal cycle in 2003 were investigated, and relations between the North Passage and South Passage of the Jiuduansha Shoal are analyzed. Results show that seasonal and spring-neap tidal cycle variations in sediment and water discharge from the drainage basin correspond to erosion and deposition on the Jiuduansha Shoal. The results and data can provide useful information for the management of the Yangtze River Estuary and restoration of the estuarine tidal flat ecology.     

天铁铁路运输调度指挥系统的设计

天铁集团运输部由于调度作业是手工作业,效率低,差错率高,在企业扩大生产过程中遇到了调度组织的困难。根据自己的实际情况,利用计算机和信息化手段,设计了铁路运输调度指挥系统,实时动态掌握现场作业,改变作业及管理方式,显著提高了作业效率,满足了生产要求。     

表面高硬度和耐腐蚀性高强贝氏体钢制备新工艺

 铁路运输和工程机械等领域对贝氏体钢的耐磨性和耐腐蚀性具有较高的要求,而表面渗硼、渗铬处理是常见的提高表面硬度和耐腐蚀性的有效方法。在已有的研究工作中,获得贝氏体基体的等温淬火热处理和表面改性处理是分开进行的,工序复杂且生产成本增加。提出制备表面高硬度、高耐腐蚀性中碳高强度贝氏体钢的新工艺,将表面改性处理和贝氏体等温淬火工艺一体化,既可以简化制备工艺,又降低了生产成本、减少了环境污染。采用渗硼/铬-等温淬火一体化新工艺制备表面高硬度、高耐腐蚀性中碳高强贝氏体钢,通过组织观察、硬度测试和腐蚀试验等,对比分析了渗硼-等温淬火和渗铬-等温淬火一体化工艺对中碳高强贝氏体钢组织和性能的影响。结果表明,与仅经过等温淬火工艺处理相比,渗硼/铬-等温淬火一体化工艺处理后,贝氏体钢表面均形成了维氏硬度超过1 500HV的渗层(约为贝氏体基体硬度的3.3倍),且在0.5%NaCl溶液中的腐蚀性能明显提高。暴露在0.5%NaCl溶液中3 h后,渗硼层表现出更好的耐腐蚀性能。两种一体化工艺均可制备表面渗层、基体以贝氏体相为主的新型高强贝氏体钢,在相同处理时间下,与渗铬-等温淬火一体化工艺相比,渗硼-等温淬火一体化工艺处理的渗层生长速率快,且渗硼层与贝氏体钢基体的结合强度更高。     

Intelligent Adaptive Cyber-Physical Ecosystem for Aerospace Engineering Education, Training, and Accelerated Workforce Development

Transformative changes are on the horizon in aerospace engineering education and learning in general. These changes are attributable, in part, to the developments of a number of aerospace, learning and other leading-edge technologies and their synergistic combinations and convergence. The related technologies include ubiquitous, cloud, and petascale/exascale computing; ultrahigh-bandwidth networks; pervasive wireless communication; intelligent autonomous robotics; artificial general intelligence; powerful game engines and facilities; networked immersive virtual environments and virtual worlds; augmented and enhanced reality; and novel human-technology interfaces. This paper describes some of the frontiers of, and challenges in, future aerospace systems and the drivers for transformative changes in aerospace engineering education. The need to have a holistic perspective and a comprehensive approach for aerospace education, research, training, and accelerated workforce development is outlined. A starting point to accomplish this task is the development of an intelligent adaptive cyber-physical ecosystem for the aerospace workforce. The continuously expanding major components of the ecosystem include integrated knowledge discovery and exploitation facilities; novel agent-supported visual simulations (with cognitive learning and understanding abilities); immersive three-dimensional (3D) virtual world facilities; intelligent, multimodal and humanlike interfaces; and smart mobile wireless devices. The ecosystem will provide timely, engaging, personalized/collaborative, and tailored visual learning. It will stimulate creativity and innovation and prepare the learners to work in future global virtual collaborative enterprises and become leaders in a world of growing complexity.     

中国高炉炼铁技术装备发展成就与展望

 近40年来，我国钢铁工业取得了巨大进步，钢铁产量连续多年居世界第一。我国高炉炼铁技术装备在大型化、现代化、高效化、长寿化等方面发展成就显著。2000年以来，一批5000m3以上特大型高炉、500m2以上大型烧结机、7.63m超大容积焦炉和年产400万t/a以上大型球团生产线相继建成投产，一系列自主研发、集成创新的炼铁关键技术在生产实践中取得重大应用成效。在技术装备大型化的同时，高炉富氧喷煤、无料钟炉顶、煤气干法除尘、顶燃式热风炉及高风温、高效低耗烧结技术、大型清洁炼焦技术等先进技术及其装备研发与应用成效显著，有力推动了炼铁技术装备进步。到本世纪中叶，我国钢铁工业格局和流程结构将发生重大变革，减量化、绿色化、智能化、高效化将是未来一个时期炼铁技术装备的主要发展趋势。     

Emotionality, emotion regulation, and adaptation among 5- to 8-year-old children.

This study investigated relations between emotionality, emotion regulation, and children's behavioral adaptation in a longitudinal design. Mothers rated emotionality and emotion regulation related to anger, fear, and positive emotions-exuberance for 151 children at age 5 and later at age 6 years 6 months. Emotionality and emotion regulation measures were modestly related. Preschool ratings at age 6 (n=125), maternal ratings at age 6 years 6 months (n=133), and elementary school ratings at age 8 (n=135) of problems and competence were also collected. High anger emotionality and low regulation of positive emotions and exuberance predicted externalizing problem behavior and prosocial behavior. High fear emotionality and low fear regulation predicted internalizing problem behavior. There were few interactive effects of emotionality and regulation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)