It was determined that the refrigerant used for decades in automotive AC, known as R-12, CFC-12, or its brand name Freon, was damaging the ozone layer (it's a chlorofluorocarbon). It was banned from being manufactured in the United States. Why is my car air conditioner not blowing cold...
is an effective way [...] legco.gov.hk 所以,民間公投只會越來越多,亦越來越有公信力,因 為 大家知道,民間 公投是一個有效表達民意的方法,不會走回頭路。 legco.gov.hk [...] substantially lower GWP than HFC-410A, and the increasing availability of components and know-how necessary for...
literature4,28. However, unlike these studies, which use the so-called GWP* metric introduced by Allen and colleagues5,6,55,56, the warming contribution of flight and surface emissions is expressed as time-series of CO2emissions that would cause identical warming through the Linear-Warming-Equiva...
However, minimum savings of 6% of annual heating energy over 3.1 years for PED and over 2.4 years for GWP need to be realised by an SHS in order to exceed the environmental effects caused by their production and operation. For ADP and Ecotox, the smart home represents a further ...
By society, we mean they are available to the population of a single country, since public goods are determined by national policies and a national budget. Law enforcement and national defense are certainly public goods in each country. Since there is no free lunch, the expenses of the public...
Planned purchases only: either purchases you’ve mapped out well in advance of starting the low- or no-buy (e.g. “that palette releasing in December”) or if you’ve thoroughly researched a product, determined it fits within your guidelines, and so forth Project Pan: purchases can’t be...
1. Introduction As ultrasound (US) is a simple and noninvasive procedure without radiation exposure, it is widely used for cancer screening and health checkups [1,2]. Both gallbladder (GB) polypoid lesions (GPLs) and wall thickening (GWT) are common US findings, and GB carcinomas (GBCs)...
Using a small sample size, this research ascertains what is required to achieve best practices with regards to the management of water in that particular area. Keywords: ethics; participation; hydrosolidarity; pro-active engagement; best practices; statistics 1. Introduction Several management ...
Boiling is highly effective in dissipating heat and temperature drops and approaches the saturation temperature within a small distance from the fin's base. Heat transfer enhancement in phase-change heat exchangers The temperature difference, LMTD was determined from the inlet and exit temperatures (DBT...
In this posting, I shall try to do as Gary suggests and reach the people we do not reach. I shall not succeed in reaching all of them. Some are determined not to be reached, regardless of the mere truth. I propose to answer some of the questions that have been raised about ...