水晶鉴定方法的探讨

据多年鉴定水晶的实践经验,阐述了日常对水晶的原石、普通饰品、贵重饰品及优化处理品的鉴定步骤与方法.     

东海又添水晶珠宝城

2007年新年第一天，江苏省最大的水晶珠宝城在中国水晶之都东海县开盘，这是东海县强势推进水晶产业发展所结的累累硕果之一。     

天然水晶中常见的固态包裹体研究

天然水晶中最为常见的固态包裹体为针状、纤维状晶体.利用宝石显微镜、偏光显微镜、电子探针对这些天然水晶中固态包裹体进行系统的光学观察和成分分析,并确定了这些天然水晶中各种针状、纤维状包裹体以及"面包渣"状包裹体的物相组成.     

水晶皂生产工艺及产品功能的提升

<正>前言低碳经济是以低消耗、低污染、低排放为特征的经济发展模式。上海世博会就是200多个国家、地区和国际组织共同演绎的一场低碳秀,必将极大地影响今后人们的消费行为,引导人们向低碳消费方式转变。发展肥皂工     

关于水晶地砖窑转烧抛光砖出现波浪式变形的答疑

问：我厂有一条220m长的辊道窑，原本设计为烧水晶地砖，因市场形势的变化，今年转烧低温快烧抛光砖。为保证窑炉耐火材料的性能不被破坏，     

绿色化妆品时代的来临

随着消费者对更天然、更安全化妆品的追崇,概述了天然有机化妆品市场的发展状况。在分析绿色化妆品含义的基础上。对我国绿色化妆品行业的生产、使用和消费等环节中存在的问题进行了论述。分析了目前天然化妆品市场所面临的困难。提出了天然和有机原料是目前化妆品市场的最佳卖点。针对目前我国绿色化妆品行业法律滞后,法规缺乏或不健全的现状,“有机产品”或“天然产品”的法规尚属空白,提出尽早建立天然化妆品认证标准的重要性,使所有的绿色化妆品得到健康发展。对天然化妆品发展状况、未来趋势及发展前景进行了回顾和展望。     

全天然／有机化妆品市场

概述了全天然/有机化妆品市场的发展状况,随着消费者对更天然、更安全化妆品的追崇,天然化妆品市场发展迅速.介绍了欧盟一些国家,如德国、法国和意大利等国的天然化妆品的市场概况以及发展现状.同时对欧洲一些天然化妆品原料及品牌进行了介绍.提出了天然和有机原料是目前化妆品市场的最佳卖点.目前涉及销售"有机产品"或"天然产品"的法规尚属空白,提出尽早建立天然化妆品认证标准的重要性.分析了目前天然化妆品市场所面临的困惑.表明具有抗氧化功效的植物提取物和具有其他功效的活性天然产品已经发展为一个大的产业,天然产品已成为当今的流行趋势.对天然化妆品发展状况、未来趋势及发展前景进行了回顾和展望.     

婴童护理品市场

婴幼儿护理产品市场涵盖了从婴幼儿到青少年的产品。介绍了经济对婴儿出生率的影响,以及婴幼儿护理产品市场的发展特点。概述了婴幼儿的肌肤特性及特殊的护理要求。指出婴幼儿护理产品中最大的发展趋势依然是有机和天然成分的产品。     

儿童护肤用品市场

随着社会的经济发展,人们对儿童皮肤护理的关注越来越高,儿童市场涵盖了从婴幼儿到青少年的产品。讨论了儿童护理品牌是如何吸引家长和孩子们及儿童护理市场的发展趋势。     

相关产品及项目信息

1安徽六国化工投产化肥新产品硫磷铵安徽六国化工股份有限公司地处铜陵、马鞍山地区，有大量的冶炼尾气制得的低成本硫酸，近年来又积极收购磷矿，走拓展“矿肥结合”的道路，是国内唯一拥有硫、磷双重资源优势的高浓度复合肥企业。为积极开拓国际国内市场，调整产品结构，增强市场竞争力，六国化工发挥省级企业技术中心优势，组织研发人员进行技术攻关，     

英国浮光掠影

有人说苏格兰是风景摄影师的天堂,我完全赞同这个说法。最近,我因为工作的原因不得不离开格拉斯哥,搬到了约克郡南部地区。在苏格兰高地生活和拍照多年的经历,让我很难告别这片我深爱的土地。不过,这种改变也让我重新思考关于自己摄影风格的一些问题。英国多变的天气和神奇的光线对我是个挑战,也是个积极的开始。     

The Evolutionary Significance of RNAi in the Fungal Kingdom

RNA interference (RNAi) was discovered at the end of last millennium, changing the way scientists understood regulation of gene expression. Within the following two decades, a variety of different RNAi mechanisms were found in eukaryotes, reflecting the evolutive diversity that RNAi entails. The essential silencing mechanism consists of an RNase III enzyme called Dicer that cleaves double-stranded RNA (dsRNA) generating small interfering RNAs (siRNAs), a hallmark of RNAi. These siRNAs are loaded into the RNA-induced silencing complex (RISC) triggering the cleavage of complementary messenger RNAs by the Argonaute protein, the main component of the complex. Consequently, the expression of target genes is silenced. This mechanism has been thoroughly studied in fungi due to their proximity to the animal phylum and the conservation of the RNAi mechanism from lower to higher eukaryotes. However, the role and even the presence of RNAi differ across the fungal kingdom, as it has evolved adapting to the particularities and needs of each species. Fungi have exploited RNAi to regulate a variety of cell activities as different as defense against exogenous and potentially harmful DNA, genome integrity, development, drug tolerance, or virulence. This pathway has offered versatility to fungi through evolution, favoring the enormous diversity this kingdom comprises.     

Extracellular Vesicles in the Fungi Kingdom

Extracellular vesicles (EVs) are membranous, rounded vesicles released by prokaryotic and eukaryotic cells in their normal and pathophysiological states. These vesicles form a network of intercellular communication as they can transfer cell- and function-specific information (lipids, proteins and nucleic acids) to different cells and thus alter their function. Fungi are not an exception; they also release EVs to the extracellular space. The vesicles can also be retained in the periplasm as periplasmic vesicles (PVs) and the cell wall. Such fungal vesicles play various specific roles in the lives of these organisms. They are involved in creating wall architecture and maintaining its integrity, supporting cell isolation and defence against the environment. In the case of pathogenic strains, they might take part in the interactions with the host and affect the infection outcomes. The economic importance of fungi in manufacturing high-quality nutritional and pharmaceutical products and in remediation is considerable. The analysis of fungal EVs opens new horizons for diagnosing fungal infections and developing vaccines against mycoses and novel applications of nanotherapy and sensors in industrial processes.     

织女初长成

经历过创业的艰辛,饱尝了成功的喜悦,一个把手工编织做到50个分厂8000名工人的25岁女孩子,在遭遇了企业的风波之后,把自己的梦想表达得如此真实而强烈。她的下一个梦是什么?