注重人才开发 专业合力辉煌

注重人才开发专业合力辉煌高密再生胶厂十几年来经济效益连续大幅度上升，其原因是该厂重视人才智力开发和对职工进行专业知识培训，重视高品质和个人潜力。这个厂师资力量雄厚，技术力量扎实，办学标准要求高。在人才开发和办教育中舍得投入，年年都对职工进行各类专业技...     

日本新型碳材料开发的现状和动向

日本新型碳材料的开发极为活跃。由于重视基础研究和科研成果向生产力的转化，近二十年来日本新型材料的开发取得了较大进展和多项重要研究成果，平均每年都有一种新材料投放市场。其中自烧结碳、SiC纤维、高温抗氧化石墨、COPNA树脂等开发居于世界领先地位。     

2003年中国粉体工业现状

近20年来，我国的粉体工业发展很快，但与世界水平相比仍有一定差距。概要总结了以非金属矿为主的中国粉体工业2003年的工艺、设备及市场开发等情况，并探讨了今后发展须重视的问题。     

会议报导

沈阳市化学工业公司一九八三年有十三项技术成果通过鉴定沈阳市化学工业公司重视科研和新产品的开发工作,一年来,有十三项科技成果通过了技术鉴定。新产品投产技术鉴定的有:沈阳石油化工二厂的食品增香添加剂混合香酯、试剂己酸乙酯,该厂分厂的轮胎防漏剂,沈阳市助剂厂的涂料浆A、快     

塑木材料市场前景分析

随着人们对废旧塑料回收利用的日益重视以及木材资源的日益匮乏，用木粉或其他天然植物纤维来填充塑料再生料，经专用设备制成的塑木材料及制品，因其兼具塑料和木材的双重特性，近年来崭露头角，并逐渐成为世界各国关注和开发的热点。但经过几年的开发，塑木材料在国内的生产应用情况并不乐观，一方面研究成果产业化困难，     

适应市场需要 加速重晶石矿的开发

我国重晶石矿的开发虽然至今未引起人的足够重视,但在近年来却随着国际市场需求量的增长而有了一定的发展。开发利用重晶石矿在我国四化建设中的意义也越来越明显。本文试从市场需要角度谈开发重晶石的必要性。     

有机氟化物的合成研究动向

含氟有机化合物是一类具有高附加价值、高功能的化合物,其应用领域已从原来的化工、轻工、国防等扩展到了卫生、农业、体育用品等重视功能性的行业。本文介绍了近10年来氟化剂、含氟农药、含氟医药、含氟氨基酸、含氟表面活性剂及含氟染料等的合成与开发现状。     

侯德榜与内蒙天然碱资源的开发

<正> 内蒙古自治区天然碱资源相当丰富,开发历史悠久,只是由于历史的原因,加工工业一直未得到发展。解放后,内蒙天然碱资源便得到国家的重视。1958年,侯德榜出任化学工业部副部长之后,对内蒙化学工业的发展非常重视,特别是对内蒙丰富的天然碱资源更加重视。1958年开始,为支援边疆的化学工业建设,化工部抽调以刘嘉树总工程师为首的一批工程师,都是制碱方面有实践经验的同志来内蒙,为发展内蒙化学工业作贡献,成立了内蒙化工局和内蒙化工设计院。1958年冬至1959年春,在内蒙西部地区伊     

旋流除尘器国外简况

近年来西德西门子公司1953年开发的旋流除尘器颇受重视。这种除尘器三个发展阶     

聚合物水基胶粘剂发展概况

近年来国外对水溶性、水分散性和热熔性聚合物进行了大量研究,开发出了一系列聚合物水基胶粘剂。本文仅就其发展概况、品种、用途和技术经济方面的优越性作一简单介绍,以期引起人们的重视,促进国内聚合物水基胶粘剂的开发和应用。     

无纺纸巾市场

叙述了婴儿用纸巾在过去几年里的销售状况以及今后的发展趋势,并就其原因作了详细分析。各大品牌生产商、私人贴标公司及时转变理念,纷纷推出不同用途、种类、香味以及外包装的产品来满足不同消费者和特殊用途的需求。最后,简单介绍了纸巾行业目前面临的问题。     

Status of solar assisted desalination: A review

The application of solar assisted desalination is expanding impressively during the last years, hence an overview of this evolution is attempted. The various solar devices, for the conversion of the sun's energy onto heat or electric power are described with emphasis to their application in water desalination processes. The status of the solar assisted desalination as developed the last eight years and the installed plants in commercial or semi-commercial size as well as some plant under development are summarized.     

废弃塑料再利用的研究进展

近20年来,废弃塑料的处理和再利用等问题受到了世界各国的重视并飞速发展。主要对废弃塑料在建材、石油、化工以及其它等方面的再利用的进展作了概述,并对废弃塑料的再利用提出了建议。     

谈谈我国农药行业的发展

本文简述了十年来我国农药行业的发展变化，同时阐述了今后几年我国农药行业必须完成的由仿制为主到创制眯主的转变及发展混剂的前景。     

邻碘氧苯甲酸及1,1,1-三乙氧基-1,1-二氢-1,2-苯碘酰-3-酮的新用途

综述了近5年邻碘氧苯甲酸(IBX)及1,1,1-三乙氧基-1,1-二氢-1,2-苯碘酰-3-酮(DMP)在有机合成方面的新用途。     

FORECASTING GLOBAL ICE VOLUME

Abstract. Forecasts and associated probability limits of total ice volume for the next 100 000 years are found based upon a historical record of 440 000 years of oxygen-18 from deep sea cores. The forecasts are found using two different time series models, one based on the assumption that ice volume contains deterministic sinusoids, and one assuming that the record contains 'disturbed periodicities', i.e. the sinusoids do not have the same cycle length and amplitude from one cycle to another. The results for the two models are seen to be very similar, with both predicting a small probability for a future ice volume event to be as large as the last ice age, which was one of the largest glaciations of the last 2 million years.     

Cancer Stem Cell Theory and the Warburg Effect,Two Sides of the Same Coin?

Over the last 100 years, many studies have been performed to determine the biochemical and histopathological phenomena that mark the origin of neoplasms. At the end of the last century, the leading paradigm, which is currently well rooted, considered the origin of neoplasms to be a set of genetic and/or epigenetic mutations, stochastic and independent in a single cell, or rather, a stochastic monoclonal pattern. However, in the last 20 years, two important areas of research have underlined numerous limitations and incongruities of this pattern, the hypothesis of the so-called cancer stem cell theory and a revaluation of several alterations in metabolic networks that are typical of the neoplastic cell, the so-called Warburg effect. Even if this specific “metabolic sign” has been known for more than 85 years, only in the last few years has it been given more attention; therefore, the so-called Warburg hypothesis has been used in multiple and independent surveys. Based on an accurate analysis of a series of considerations and of biophysical thermodynamic events in the literature, we will demonstrate a homogeneous pattern of the cancer stem cell theory, of the Warburg hypothesis and of the stochastic monoclonal pattern; this pattern could contribute considerably as the first basis of the development of a new uniform theory on the origin of neoplasms. Thus, a new possible epistemological paradigm is represented; this paradigm considers the Warburg effect as a specific “metabolic sign” reflecting the stem origin of the neoplastic cell, where, in this specific metabolic order, an essential reason for the genetic instability that is intrinsic to the neoplastic cell is defined.     

旧管道穿插HDPE管清洗修复技术

旧管道内衬防腐技术近几年发展很快。旧管道穿插高密度聚乙烯管技术是根据国内外先进技术,结合多年来管线清洗修复实践经验,开发的一种用途广泛、施工工艺简单、成本低、寿命长的旧管线内衬防腐技术。     

Soy proteins in foods—Retrospect and prospect

The soybean has been used for food in the Orient for centuries, but the western world has been slow to adopt it. In the last 40 years soybeans have become an important source of protein in poultry and livestock feed. In the last 10 years or so it has been used in foods in increasing amounts to supply low cost high quality protein with important functional properties. The soybean will be vital to meeting the protein needs of the future in all parts of the world, especially in the developing countries. The challenge is great to the plant breeders and agronomists to improve yields and adaptability of the crop and to the soy technologists to improve the characteristics of processed soybean proteins.     

Chitin synthase, a fungal glycosyltransferase that is a valuable antifungal target

During the last 30 past years, more life-threatening fungal infections have appeared due to the increasing frequency of patients with weakened immune systems. Inhibition of fungal enzymes involved in the biosynthesis of sterols is considered to be a safe and effective option for antifungal therapy. However, the intensive use of sterol-biosynthesis inhibitors for years has resulted in resistance development. Consequently, the search for alternative therapeutics must be intensified. In this context, the biosynthesis of chitin, an essential component of the fungal cell wall that is absent in mammalian cells, was envisioned as a safe and selective therapeutic target. We present here recent successes in the inhibition of chitin synthase, the enzyme involved in the last step of the biosynthesis of chitin.