《世界水泥》看中国--中国水泥协会与英国帕拉第恩出版公司合作在京签字

本刊讯走新型工业化道路是中国水泥工业发展的必由之路，信息化是带动工业化的动力源泉。因此，让世界及时了解中国水泥工业的现状和发展趋势，让中国水泥界的同仁及时把握世界先进水泥生产技术的信息，特别是水泥应用领域的交流是非常必要的。日前，《中国水泥》与《世界水泥》合作签字仪式在北京举行。《世界水泥》杂志已经连续出版了76年，是一本以国际水泥工业服务为主导，并经常获得设备规格制定人赞称及做出水泥生产设备选择决策的工具书。《世界水泥》的强项是报道当今世界水泥行业的重要主题和技术进展。此次中国水泥协会与英国Pal…     

中国水泥工业现状与结构调整

1中国水泥工业生产消费情况1．1水泥生产能力及产量 2003年全国水泥生产能力超过10亿吨，全国水泥产量达到了8．63亿吨，比上年增长18．9％，纯增长近1．38亿吨，产量连续19年居世界第一，占世界总产量的40％以上。2004年1—5月份全国水泥累计产量为34185万吨。     

走集约化发展道路,建好新乡水泥熟料生产基地

据中国水泥协会报导,到2003年底,我国有各类水泥企业4596家,大型企业136家,中型企业836家,小型企业3624家,全部从业人员约150万人,2003年水泥产量8．25亿吨,比2002年增加1．02亿吨。目前全国水泥总产量中,有约一半的产量是小水泥企业生产的,与世界各国水泥企业集约化程度相比,     

中国水泥工业调查

1 中国水泥工业生产消费情况1.1 水泥生产能力及产量 2003年全国水泥生产能力超过10亿吨,全国水泥产量达到了8.63亿吨,比上年增长18.9％,纯增长近1.38亿吨,产量连续19年居世界第一,占世界总产量的40％以上。2004年1-5月份全国水泥累计产量为34185万吨。 2003年全国水泥产量中,日产熟料700吨及以上的新型干法窑水泥接近1.7亿吨,占全部水泥产量的20％;其它旋窑水泥产量约9100万吨,占全部水泥产量的10％;立窑水泥产量约6.0亿吨,占全     

华新水泥利用信息化提升管理水平

我国是世界水泥生产大国。据统计，2010年我国水泥产量总计18．68亿t，增速15．53％，并连续20多年保持世界产量第一。当前，“以信息化带动工业化”的推进步伐正在加快，对于正处于产业结构调整时期的水泥行业而言，加快信息化建设显得尤为重要。在工信部发布的《关于水泥工业节能减排的指导意见》中明确提出，     

中国大型水泥企业可持续发展宣言（都江堰宣言）

我们来自中国15家大型水泥企业，2008年的水泥产量占全国总产量的24％。在全球水泥市场发生较大变化的时刻，我们认为金融危机的影响是短暂的，水泥工业的可持续发展是长期的。今天我们在中国四川都江堰共同发表《中国大型水泥企业可持续发展宣言》：     

水泥工业的结构调整与立窑的技术改造

改革开放以来,随着我国国民经济的飞速发展,大规模的城市、水利、交通等基础建设和住宅建设的巨大需求促使我国水泥工业有了前所未有的快速发展,水泥年产量急剧上升,年产量占世界总产量的1/3以上,是世界上水泥产量最大的国家。 表1. 近20年来中国水泥产量 增长情况 (万吨) 1980 1985 1990 1995 1998 1999 7986 14595 20971 47591 53600 57300 但是,由于历史发展过程,形成了我国水泥工业的主要问题是工业结构不合理的局面。目前,我国立窑水泥占全国总水泥产量3/4,代表先进生产技术的新型干法水泥生产线的水泥产量仅占总产量的10%。…     

纤维增强——水泥基材料的未来

一、大宗建材必须是可持续发展的绿色材料水泥与水泥基材料是当今最大宗的人造材料。世界水泥年产量已超过１５亿吨（我国１９９７年为５１亿吨，达世界产量的三分之一），据此推算，水泥基材料总量在６０～７０亿吨上下。估计所消耗的主要资源为优质石灰石１５亿吨、砂...     

水泥工业产业政策和准入条件形成背景和过程说明——中国水泥协会雷前治会长在“2009年中国水泥协会会长会议”的发言

这次年会的召开与以往的会议不同，水泥行业正处在发展的十分关键时期——水泥工业已经要从量的增长，向质的提高的这样一个伟大转变时期。作为量，从数据上看让我们做水泥的人都感到了心慌。今年水泥产量可能突破16亿吨，并很快成为事实，那么16亿吨能多出多少了？16．5亿以内都有可能，也有可能就到16亿吨，就看最后两个月了。也就是说一年增长2亿吨，这个数据真是让大家感到既可喜又有忧。     

水泥行业掀起并购浪潮

国内龙头企业持续扩张国际资本悄然进入产业整合:迟暮春天花样年华实施新的水泥标准之后,多数老企业被“关、停、并、转”已是必然趋势。目前,我国水泥生产企业有一定规模的近5000多家,但企业平均规模仅为15万t;反观世界水泥工业,目前发达国家的企业平均规模是60多万t。从单个企业的生产规模来讲,海螺水泥是国内目前产量最大的企业,预计今年其产量将达到4000万t以上:而世界最大的水泥企业法国拉法基,其年产量达到1.6亿t。目前国内十大水泥企业水泥产量不到全国的9%;而世界十大水泥企业产量近6亿t,占到世界水泥总产量的1/3以上。从技术工艺角…     

Vanadium in foods and in human body fluids and tissues

Using neutron activation analysis, vanadium was analysed in a range of foods, human body fluids and tissues. On the basis of these results and those of other workers, it was concluded that daily dietary intake amounts to some tens of micrograms. Analysis of body fluids (including milk, blood and excreta) and organs and tissues provided an estimate for the total body pool of vanadium in man of about 100 μg. Vanadium was not detectable in blood and urine at the level of 0.3 ng/g, while low levels were found in muscle, fat, bone, teeth and other tissues. The relationship between dietary intake to pulmonary absorption is discussed in relation to the occurrence of vanadium in man-made air particulates. The very low levels found in milks and eggs suggest minimal vanadium requirements in growth. The findings are discussed in the light of previous results and also in relation to the possible essentiality of vanadium.     

Iodine-129 in thyroid and urine in Ukraine and Denmark

Human thyroids collected from Gomel in Belarus, sheep thyroid from Jutland and human urine from Zealand in Denmark were analysed for 129I and 127I concentrations. The ratios of 129I/127I in human thyroid in Gomel are 2.65-11.0 x 10(-9) with an average of 7.21 x 10(-9), which is one order of magnitude higher than those from Asia and South America (10(-10)), but significantly lower than those observed in west Europe (10(-8)). A weak negative correlation (P < 0.05) between 129I/127I ratio in human thyroid and the age of the subjects was observed in Gomel. The average ratio of 129I/127I in sheep thyroids from Jutland of Denmark is 1.81 x 10(-7), which is two orders of magnitude higher than those in south hemisphere, and Asia. It is also significantly higher than those observed in other west European countries before 1984 and that in human thyroid in Gomel. The high thyroid 129I level in Jutland is attributed to the release of reprocessing plants in France and UK. The 129I/127I ratios in human urine in Zealand of Denmark are 0.86-2.86 x 10(-8). The possibility of using urine 129I to evaluate the thyroid exposure to 129I is investigated.     

儿童青少年近视的防控研究进展

儿童青少年近视率一直处于高位并持续上升,严重影响了我国儿童青少年的学习和生活,本研究通过查阅国内外治疗儿童青少年近视相关著作及文献,针对目前儿童青少年近视防控手段的进展,对各治疗方案进行分析和研究。     

德国城乡景观与中国景观问题

2003年,笔者获得德国DAAD(德国国际学术交流基金会)奖励资助,作为访问学者在德国逗留了4个月(4月～8月).在这期间,笔者还考察了法国、丹麦、瑞典和意大利,但我认为还是德国的景观最为优雅和美丽.     

广义文脉与规划设计教育

城市规划设计教育不仅应关注历史化,还应关注自然、社会和经济;不仅应关注地方和传统,还应关注全球和未来。城市规划教育应掌握正确的发展观和方法论,肩负起发展地万脉的历史使命,保护社会公众的利益,推动城市持续发展。     

Perchlorate in raw and drinking water sources in England and Wales

A well‐known use of perchlorate is as a rocket fuel propellant; however, more widespread uses include in munitions and fireworks, and it also occurs naturally. Perchlorate suppresses the thyroid, which can lead to a variety of adverse effects. It is a widespread contaminant in the United States, but limited occurrence data in the United Kingdom exist, and even less for drinking water. Monitoring of 20 raw and treated drinking water sites in England and Wales, covering four seasonal periods, showed that perchlorate is a low‐level background contaminant of raw and treated drinking water. Low concentrations (treated drinking water: <0.020–2.073 μg/L, mean 0.747 μg/L) were detected at every higher‐risk site. The concentrations were comparable in each of the four sampling exercises and no significant trends were apparent relating to the time of year, the type of risk or the method of chlorination. Limited data showed that removal by ion exchange and granular‐activated carbon may occur.     

Lead and cadmium contents in cereals and pulses in north-eastern China

It is known that, unlike Japanese, Koreans or southern Chinese who depend on rice as a major source of energy for daily life, people in north-eastern China rely not only on rice, but on wheat and other cereals and to a lesser extent also on pulses. Cereal and pulse samples were collected from open markets in north-eastern China, and analyzed by inductively-coupled plasma spectrometry (ICP-MS) for two potentially hazardous heavy metals — lead (Pb) and cadmium (Cd). The average Pb level in cereals (31.3 ng Pb/g as a geometric mean) and that of pulses (25.7 ng Pb/g) were similar to each other with no significant difference. Among the cereals, Pb contents were higher in foxtail millet (54.3 ng/g) and lower in maize (35.4 ng Pb/g; grain and flour in combination), wheat flour (28.8 ng Pb/g) and rice flour (22.7 ng Pb/g). Lead levels in two important types of pulses, kidney bean and soybean (24.6 and 30.8 ng Pb/g, respectively), were comparable to the levels in rice and wheat. In contrast, Cd levels were substantially higher in pulses (55.7 ng Cd/g) than in cereals (9.2 ng Cd/g), and among the pulses, Cd in soybean (55.7 ng Cd/g) was significantly higher than that in kidney bean (23.8 ng Cd/g). The possible public health implication of the Pb and Cd levels, especially the high Pb level in foxtail millet (54.3 ng Pb/g) and the high Cd level in soybean (73.5 ng Cd/g), is discussed.     

创新创业教育在高校实践教学中的研究与探索

大学生创新创业教育的开展对高校人才培养体系的完善具有非常重要的意义。针对目前我国高校创新创业教育模式的问题与不足进行探讨,分析研究了创新创业教育的实质,最后重点阐述了在实践教学中如何加强创新思路的引导,建立有效激励机制,开展创新及创业教育的应对策略,促进对大学生实践创新能力、创业就业能力和持续发展能力的培养。     

武汉城市景观文化生态保护建设的问题与对策

城市文化生态是形成城市特色的文化要素。历史古迹,优秀建筑,空间形态,环境特色,作为城市文化生态的显现部分,既是城市文化底蕴直观生动的反映,也是市民的情感港湾和精神家园。理应得到珍惜和保护。该文在系统地概括武汉景观文化生态特点的基础上,重点分析了当前武汉城市景观规划建设中的文化生态问题,提出了武汉今后改进城市景观文化生态规划建设的对策建议。