The Zeeman and hyperfine splittings of the emission spectra from mercury vapor lamps are investigated through the use of a Fabry-Perot interferometer. In the absence of a magnetic field, a low-intensity peak near the major 5461 Å emission line can be observed; this yields a hyperfine shift of frequency 12.70 ± 0.19 GHz, consistent with the bHg emission shift of 12.21 GHz. In the presence of dif...

Formaldehyde (FA) is an aldehyde used in antiseptics and adhesives. The World Health Organization (WHO) and other institutes have linked FA to sick building syndrome and allergic diseases. Recent studies have reported that cadavers embalmed using formalin and ethanol-based preservative solutions release FA vapor during dissection and that FA vapor may adversely affect students and lecturers in ...

A new approach for retrieval of the total atmospheric water vapor content (TAWV) based on the Moderate Resolution Imaging Spectrometer (MODIS) two thermal IR (TIR) channels (ch31 and ch32) is proposed. To developing the approach, the radiative transfer calculations are carried out using MODTRAN 4.0 combined with the latest global assimilated data, and the pixels contaminated by clouds are elimi...

OBJECTIVE To evaluate the effectiveness of liquid nitrogen (LN(2)) vapor (indirect contact method) for the storage of human semen. DESIGN Experimental study. SETTING University hospital-based fertility center. PATIENT(S) We evaluated 150 patients with normal sperm parameters. INTERVENTION(S) Human semen (N = 120) was mixed with Semen Freezing Medium, divided into two groups, frozen, and...

The GPS/MET experiment was the first active atmospheric microwave occultation experiment using the existing GPS L1 and L2 frequencies to measure the atmospheric refractive index. One major limitation to this technique is that the presence of water vapor in amounts typically found in the lower troposphere (below 5-7 km) causes an ambiguity between the contributions of dry air and moisture to the...

Advances in microanalytical systems for multi-vapor determinations to date have been impeded by limitations associated with the microsensor technologies employed. Here we introduce a microfabricated optofluidic ring resonator (μOFRR) sensor that addresses many of these limitations. The μOFRR combines vapor sensing and fluidic transport functions in a monolithic microstructure comprising a hollo...

Water vapor is a constituent of the tropical atmosphere which, though to a significant extent locally controlled by vertical advection, precipitation, and surface evaporation, is also affected by horizontal advection. Water vapor affects the flow in turn, because a humid atmosphere supports deep, precipitating convection more readily than a dry atmosphere. Precipitation heats the atmosphere, an...

This paper reports experimental investigation of using liquid suction heat exchanger (LSHX) with condensed cold-water (LSHX-CW) on the performance a split type room air conditioning. To this end, we used large residential house 64 m3 equipped 2-tons conventional commercial split-type conditioner fitted R22. The coaxial design LSHX-CW allows to exchange between vapor and refrigerants in center p...

The anomalous strengthening of the stratospheric Aleutian High during early boreal winter 2016/2017 led to a rare Canadian warming (CSW) event, which extent wind reversal in Arctic region is strongest among CSWs since 2001. Unlike sudden warmings, polar vortex this CSW merely distorted, not displaced off pole or split into two pieces, and mean temperature only has modest increase few kelvins. U...