نتایج جستجو برای: dangerous substances
تعداد نتایج: 76394 فیلتر نتایج به سال:
Depending upon whom you heed and what you read, benzodiazepines are either the safest and most useful anxiety relieving drugs so far discovered, or among the more potentially harmful addictive substances. According to their detractors (Lader, 1978; Marks, 1978) benzodiazepines have become increasingly popular because of medical indiscretions and over vigorous advertising. Drugs are neither inhe...
Metalcasting involves having a molten metal poured in a hollow mould to produce metal objects. These moulds are generally made of sand and are chemically bonded, clay-bonded, or even unbounded. There are many binder systems used. Binders based on furfuryl resins constitute currently the highest fraction in the binders no-bake group. Moulding sand, after knocking out the cast, is partially recla...
OBJECTIVE Hazmat disaster preparedness is critical, especially as Hong Kong prepares for major international events, such as the 2008 Olympic Equestrian Games. No published medical study describes the identities and quantities of hazardous materials (HMs) in Hong Kong and lists what antidotes are needed for these dangerous goods (DGs). This study describes what HMs are most common in Hong Kong ...
This expert article deals with the issue of so-called sub-limit sources a very dangerous risk consisting in both serious consequences accidents and high frequency occurrence Czech Republic. Particular modelling various low-mass emergency releases toxic ammonia clearly indicates danger to population. In next part there is only brief instruction by General Director Fire Rescue Service that solves...
Recent mass shootings have prompted a national dialogue around mental illness and gun policy. To advance an evidence-informed policy agenda on this controversial issue, we formed a consortium of national gun violence prevention and mental health experts. The consortium agreed on a guiding principle for future policy recommendations: restricting firearm access on the basis of certain dangerous b...
We analyze an environment in which bidders’ private values change over time due to both private investments and exogenous shocks. We demonstrate that a highlydecentralized mechanism achieves efficiency. The mechanism requires a stage of costly public announcements (i.e., signaling) to induce efficient investment. For this reason, an equilibrium selection issue arises, but can be handled by a mi...
In the last 5 years, the legislation on chemicals was rigorously updated in the European Union (EU). The CLP (Classifi cation, Labelling and Packaging of substances and mixtures) Regulation 1 and REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) Regulation 2 completely renew the rules on (risk) management of substances and mixtures. They will gradually replace a large...
during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...
The purpose of this study was to observe and analyze the consumer behaviors and commentary of the Black Friday customer. An observational instrument documented consumer in-line behavior while waiting for the stores to open, store entry behavior, and individual behavior. Findings show that the majority of the shoppers demonstrated calmness, courteousness, and happiness during the shopping experi...
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