منابع مشابه
Tungsten disulphide sheathed carbon nanotubes.
An insulated nanotube wire is formed by the binary phase of layered tungsten disulphide and carbon nanotubes (shown in the HRTEM image) generated by the sulphidization of tungsten oxide coated multiwalled carbon nanotubes at 900 °C. Thermogravimetric analysis shows that the tungsten disulphide coat acts as an antioxidant.
متن کاملCarbon disulphide poisoning in viscose rayon factories.
The manufacture of rayon by the viscose process exposes workers to the hazards of carbon disulphide (CS2) poisoning. When the viscose industry was started the toxicity of carbon disulphide was scarcely known among manufacturers, and the processes used were primitive; this resulted in many cases of CS2 poisoning in all those countries where viscose plants had been established. Since then, techni...
متن کاملSome Experiments with Undeenedness
We distinguish two kinds of undeenedness: undeenedness in existence versus undeenedness in information. We give several applications of the rst kind: a rst order formulation of the untyped lambda calculus and a Zermelo-Fraenkel style theory for partial functions which is equally powerful as ZF-Set Theory. We add the rst kind of unde-nedness to a typed lambda calculus, and show that identifying ...
متن کاملCardiovascular effects of occupational exposure to carbon disulphide.
The objective of this study was to investigate the effect of occupational exposure to carbon disulphide (CS2) on the total cholesterol, blood pressure and prevalence of coronary heart disease (CHD). A cross-sectional study involving 252 viscose rayon workers and 252 age and sex matched controls was carried out. Depending on the job and specific work place, the CS2 concentrations were between 10...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific American
سال: 1908
ISSN: 0036-8733
DOI: 10.1038/scientificamerican03281908-221