نتایج جستجو برای: cleaner development
تعداد نتایج: 1419495 فیلتر نتایج به سال:
Scavia, D. and Park, R.A., 1976. Documentat ion of selected constructs and parameter values in the aquatic model CLEANER. Ecol. Modelling, 2: 33--58. Process representations critical to the phytoplankton and zooplankton submodels are described. These include constructs for: lightand nutrient-limitations and their interaction, temperature, consumption, and population-age structure. Values for ke...
Background Implementing efficient stoves and clean fuels in low and middle-income countries are critical for improving health of poor women and children and improve the environment. Cleaner biomass stoves, however, perform poorly against the World Health Organization's indoor air quality guidelines. This has shifted the focus to systematic dissemination and implementation of cleaner cooking sys...
BACKGROUND High-quality vacuum cleaners and vacuum cleaner bags are often recommended to allergic patients as a means of reducing indoor allergen exposure. A number of vacuum cleaners on the market today claim to capture 99.9% of particles 0.3 microm or larger entering the vacuum cleaner, and many vacuum cleaner bags are now being sold as microfiltration bags. OBJECTIVE The purpose of this st...
Innovation became important years ago when people became interested in the dynamic underlying economic development and growth. And innovation has been intimately intertwined with entrepreneurship. Joseph Schumpeter, writing in the early 20 C, argued that innovation is central to economic development; he regarded entrepreneurs as innovators engaged in a process of creative destruction, destroyin...
In recent years, air pollution has become a major worldwide concern. Air pollutants can affect metabolic activity, impede healthy development, and exhibit carcinogenic and toxic properties in humans. Over the past two decades, the use of microbes to remove pollutants from contaminated air streams has become a widely accepted and efficient alternative to the classical physical and chemical treat...
At present, the zero-carbon goal has become common choice of all world. Driven by goal, energy system in China will develop to be cleaner and cleaner. In this situation, Energy Internet future development trend system. Based on detailed analysis history, basic connotation key features Internet, an evaluation index is introduced. This proposed indicator evaluates from five dimensions, indexes in...
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