CFC 12
CFC-11, CFC-12 and HCFC-22 ground-based remote sensing FTIR measurements at Réunion Island and comparisons with MIPAS/ENVISAT data
... of CFC-11 and CFC-12 from ILAS (Improved Limb Atmo- spheric Spectrometer), CFC-11, CFC-12, CFC-113, HCFC- 22, HCFC-142a and HCFC-142b from ACE-FTS (Atmo- spheric Chemistry ...
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MIPAS IMK/IAA CFC-11 (CCl 3F) and CFC-12 (CCl2F measurements: accuracy, precision and long-term stability
... in CFC-11 and CFC-12 which can so far only be explained by changes in ...potential, CFC-11 and CFC- 12 have a pronounced global warming potential (World Me- teorological ...
35
New and improved infrared absorption cross sections for dichlorodifluoromethane (CFC-12)
... with CFC-12 adsorption in the vacuum line and on the cell ...Varanasi CFC-12 cross sections do exhibit some scatter in integrated band intensity; however there is no evidence for any temper- ...
11
The SPARC Data Initiative: comparisons of CFC-11, CFC-12, HF and SF 6climatologies from international satellite limb sounders
... ries show an approximately 2-year-long cycle related to the QBO transport variations. ACE-FTS measurements do not clearly reveal the same cycle, which might be related to higher uncertainties near the top of the vertical ...
18
Use and application of CFC-11, CFC-12, CFC-113 and SF6 as environmental tracers of groundwater residence time : a review
... the CFC-12 present in a refrigerator of older design could theoretically contaminate a moderately sized aquifer to more than 10 times current atmospheric equilibrium concentrations (Morris et ...
10
Airborne limb-imaging measurements of temperature, HNO3, O3, ClONO2, H2O and CFC-12 during the Arctic winter 2015/2016: characterization, in situ validation and comparison to Aura/MLS
... between 12:00 and 13:00 UTC was spent on the ground due to a refueling stop of the ...to 12 km and also stronger vertical gradients from higher temperatures (240 K) at lower altitudes, down to temperatures ...
20
Nano carbon and tungsten carbide in hydrodehalogenation of chloro-floro carbon (CFC)
... membentuk parameter yang optima. Pencirian teliti telah dilakukan menggunakan FTIR, penjerapan titik tunggal BET, analisis penjerapan nitrogen, FESEM-EDX dan TGA. karbon teraktif yang terpilih telah digunakan sebagai ...
144
Transient tracer distributions in the Fram Strait in 2012 and inferred anthropogenic carbon content and transport
... and directly measured on board, using a purge and trap GC-ECD system similar to Law et al. (1994) and Bullister and Wisegarver (2008). The measurement system is iden- tical to the PT3 system described in Stöven and ...
15
A Review of Alternative to R134a (CH 3 CH2 F) Refrigerant
... Kyoto protocol aims at phasing out of substances that will lead to global warming. And R134a is used in domestic refrigerator and other vapour compression systems as it was identified as a replacement to ...
5
Atlantic CFC data in CARINA
... lower CFC concentration than the more re- cent cruises to which they are ...for CFC-11 and CFC-12, which indicates that the increasing CFC trend with time in the northern Atlantic is ...
15
Results from the International Halocarbons in Air Comparison Experiment (IHALACE)
... (a) CFC-11, (b) CFC-12, (c) CFC-113, (d) CFC-114, (mole fraction, ppt = pmol mol −1 , parts per trillion) color-coded by calibration scale with scale identifiers shown along the top ...
22
Nordic Seas and Arctic Ocean CFC data in CARINA
... between CFC-11 and CFC-12 ...of CFC-11 is very high and almost 10% higher than for CFC-12 and the North Atlantic group recommended a correction factor of ...the CFC-11 ...
19
Xantivin suppresses the activity of EGF CFC genes to regulate nodal signaling
... nodal signaling mediated by the Xenopus EGF-CFC gene FRL-1 in animal cap assays (Fig. 4). Previous studies have shown that overexpression of Xnr1 induces the expression of the mesodermal marker Xbra , the dorsal ...
9
Non CFC refrigerants : first and second law efficienies
... Stegou, 1996 in his study of the thermodynamic properties formulations and heat transfer aspects for replacement refrigerant - R-123 and R-134a - stressed about analytical relations for [r] ...
24
Effects of Chlorofluorocarbons (CFC) on ozone and its role in deplication of ozone layer
... from 12 satellites of several countries, and found that the UV radiation reaching equatorial latitudes was far greater than expected, with the UV Index climbing as high as 24 in Quito; the WHO considers 11 as an ...
6
New and improved infrared absorption cross sections for trichlorofluoromethane (CFC-11)
... Ultimately, however, CFCs proved too good to be true. The explosion in their use led to a steady increase in their atmospheric abundances. While they are inert in the tropo- sphere, it was this stability which enabled ...
10
Non-CFC refrigerants ; first and second law efficiencies
... The danger posed by CFCs had many countries, among them the United States, Sweden, Finland, Norway, and Canada, banning the use of CFC-11 in spray cans in the late 1970s. Then in September 1987, 24 developed ...
21
Design and Simulation of a CFC-Free Open Air-Conditioning System
... Razvili smo preprost simulirni program delovanja odprtega zraènega hladilnega procesa brez uporabe CFC, v kar je usmerjen razvoj klimatizacijske tehnike z namenom ohranjanja okolja. Raèunalniki program, napisan v ...
13
Stratospheric Injection of Brominated Very Short Lived Substances:Aircraft Observations in the Western Pacific and Representation in Global Models
... The three observed bromine relations total, organic decay, and inorganic rise are shown.. in grey as functions of CFC-11 in Figure 9.[r] ...
61
Antibody blockade of the Cripto CFC domain suppresses tumor cell growth in vivo
... Cripto overexpression induces tumor formation comes from studies of MMTV-Cripto transgenic mice that overexpress Cripto in the mammary gland. Hyper- plasias are seen in these mice, and papillary carcino- mas develop in ...
14