January is National Radon Action Month, and according to the U.S. Environmental Protection Agency (EPA), more than 6 million U.S. homes have indoor concentrations of radon that exceed safe levels (1). Radon causes between 3 and 14 percent of all lung cancer cases worldwide (2). If you...
At a fuel station in Esztergom, one Slovakian driver said: "I save at least 5 to 6 euros [$5.60 to $6.80] on a full tank. That's pretty good. Since I drive quite a lot, I save the price of two full tanks a year." READ MORE UN migration report laid bare Soccer's...
According to Calkins, Xerox's energy expenses last year would have been 21 percent higher had it not been for its conservation measures. As a result the company saved $18 million in 2006. With its original target now met, Xerox has set a tough new goal that will drive performance for ...
Based on the review conducted, it was found that ML techniques offer a great potential in solving problems in almost all areas of the oil and gas industry involving prediction, classification, and clustering. With the generation of huge data in everyday oil and gas industry activates, machine ...
that GSHP reduce annual emissions with ≈ 1.5 tCO2. With the combination of a PV system, the annual emission reduction was 0.6–0.9 ton higher[32]. Also, higher CO2abatements costwere found for GSHP than airsource heat pumps[9]. When surplus PV electricity is converted to heat ...
aSeveral companies supply permeators for air separation using membranes with characteristics similar to those in Example 26.1. One of the main applications is to provide nitrogen at purities of 95 to 99 percent, which is sufficient for many inert-gas requirements. 几公司供应permeators为空气分离使用...
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required...
When one burns CH4 in air the chemical reaction is: CH4 + 2O2 > CO2 + 2H2O. That is, methane combusts to form carbon dioxide and water vapour. Water vapour absorbs IR close to 100 percent in the range 4.5 to 8.0 micron (completely overlapping CH4), raising ...
Oil and gas development near residences increases risks of exposure to water pollution, air pollution, noise, and other stressors that may adversely affect health and socioeconomic well-being (Adgate et al., 2014; Allshouse et al., 2019; DiGiulio & Shonkoff, 2021; Garcia-Gonzales, Shamasunde...
that certain additives such as, e.g., one or more rare earth metal oxides and/or alkaline earth metal oxides may be included in the transition alumina (usually in amounts comprising from 2 to 10 weight percent of the stabilized coating) to stabilize it against the generally undesirable high...