城市道路线位选择之要点

从对前期规划的落实、对自然环境的尊重、对公众意见的采纳、对拆迁工程的慎重、对各方经济利益的斟酌、对水资源的保护、对文物古迹的保护等方面,阐述城市道路线位选择时正确处理、合理解决面临问题和矛盾的要点.     

轧钢厂能耗对标的实践与讨论

能耗对标是企业实现持续改进、创新超越的实践活动,它涉及企业生产经营的各个方面,通过能耗对标活动,找出与同行业先进水平的差距,制定跟进赶超的路线图和时间表,达到追赶先进、提高自身清洁生产水平的目的。通过对轧钢生产企业能耗对标实践的剖析,对企业开展能耗对标的方法和意义进行了有益探讨。     

高效藻类塘对小城镇养殖废水净化效能的影响

[目的]探索高效藻类螗中藻类、曝气和底泥对小城镇养殖废水净化效能的影响.[方法]设置4个独立人工池塘作对比试验,通过控制试验塘中的藻类浓度、底泥及曝气程度,测定养殖废水中的还原性物质、氮和磷的变化量,进而比较藻类、底泥和曝气对废水净化效能的影响.[结果]高效藻类塘对还原性物质、氟和磷的去除率分别达到88.3%、69.2%和59.7%,而普通塘对其去除率分别仅有48.0%,43.4%和22.8%.藻类对TP的去除影响最为明显,其次是对COD,对TN的影响最弱;曝气对COD代表的还原性物质的去除率影响最大,其次是对TN的降低,对TP的影响最弱;底泥对TP的去除影响极为显著,其次是对TN,而对.COD的降低影响最弱.[结论]高效藻类塘中藻类、曝气和底泥均对养殖废水的净化产生较大影响.     

分析城市地质调查的需求及相关问题

随着城市化建设的脚步不断加快,地质环境问题对城市化建设的影响越加明显,开展城市地质调查工作迫在眉睫。本文首先对城市化发展对地质调查的需求性进行阐述,然后对城市地质调查的具体内容进行分析,最后对城市地质调查中的关键性问题进行了解,并且提出了针对性的实施策略,希望对我国城市地质调查工作提供一定的借鉴。     

格里格的挪威民族音乐之路

本文通过对挪威民族乐派的创始人格里格音乐风格的形成,及其对民族音乐进行的系统研究和整理,并通过分析对格里格的作品,认真地阐述了格里格对发展挪威民族音乐所做出的杰出贡献,及其对欧洲民族乐派的深刻影响。通过格里格作品所体现的民族主义无穷魅力来表现格里格对其后人的影响,在此基础上产生的更多的民族主义为代表的音乐音乐家们沿着格里格所开辟的道路继续着他们的音乐之旅。并通过当代指挥大师们诠释的格里格的作品,演奏家们对格里格作品的完美体现,及出版商们对格里格作品的偏爱进一步证实了格里格音乐作品的艺术价值。     

国内外农产品价格波动研究及最新进展

农产品价格稳定一直是世界各国农业宏观管理的核心问题.国外对农产品价格波动研究的成果非常丰富,近年来的研究侧重对汇率波动、能源危机、金融资本等外部冲击因素对农产品价格影响的考察.国内对农产品价格波动的研究理论较为薄弱,侧重对粮食、生猪等大宗农产品价格波动的实证分析,近年来也开始关注国际农产品价格波动等外部冲击因素对国内价格的影响.现有文献存在对生鲜农产品波动研究较少、对各种外部冲击的传导机制厘清不够、对各种外部冲击因素的贡献度缺乏比较以及对价格波动中的非对称性效应分析不够等不足.     

提高板坯连铸机阶梯对弧样板线外对弧精度的措施

概述了对弧精度的重要性及国内规范要求，分析了阶梯型对弧样板的不足和在对弧操作中对辊列的影响，提出了提高对弧精度的几条措施。     

碱金属对焦炭冶金性能的影响研究

对焦炭进行增碱处理,分析碱金属对焦炭冶金性能的影响.提出应加强对碱金属危害的研究,限制碱金属对高炉冶炼的影响.     

钒对低合金钢的强化作用

本文对低合金钢的强化方式做了总结、归纳，描述了钒在钢中对这些强化方式的影响，进而总结了钒对低合金钢的强化作用。本文还对VN的微合金化作用进行了研究和探讨，提出了用钒氮合金VN和V铁做添加剂对钢强化的不同效果。     

稀土抑菌作用研究

采用抑菌圈法研究了14种稀土离子对2种植物细菌和4种植物真菌的抑菌作用,稀土离子设5个浓度分别为:500mg·L-1、1000mg·L-1、2000mg·L-1、2500mg·L-1和3000mg·L-1.实验结果表明,稀土离子的抑菌作用随浓度的增加而增强,稀土离子的抑菌作用具有选择性,不同的稀土离子对同一种真菌的抑菌作用差异较大;同一种稀土离子对2种细菌的抑菌作用差异也较大.镧对玉米大斑菌、铕对小麦赤霉菌、铽对小麦根腐菌、镝对番茄灰霉菌、钬对玉米大斑菌、铥对小麦赤霉菌、镱对番茄灰霉菌和玉米大斑菌、钇对番茄灰霉菌及14种稀土离子对油菜黑腐菌具有较好的抑菌作用.     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.     

Seven Rare Earth Projects Involving Close to 3 Billion Yuan Investment Landed In the HighTech Zone

正On May 22,Baotou Rare Earth Industry Cooperation Consultation MeetingProject Agreement-signing Ceremony was held in Ningbo,nearly 40 enterprises from Ningbo,Guangdong,Hunan,and Shanxi participated in project consultation.After multi-lateral communication,agreements were signed for a total of 7 rare earth projects successfully.