providing welfare status for personnel of industrial plants is necessary and also emphasized in all standards. preparing fresh, cool and clean air especially in warm seasons is one of the most important duties of plant owners to keep workers safe and healthy. although in many workshops some cooling and air-conditioning systems (commonly mixing ventilation systems) were installed, most of them h...

Many studies have shown that floor-supply displacement ventilation systems are better than mixing ventilation systems. The benefits include indoor air quality, thermal comfort, and reduced energy use. The energy benefits depend on the climate conditions. This research compared the energy use of a floor-supply displacement ventilation system in a large industrial workshop with that of a mixing v...

OBJECTIVE : This meta-analysis sought to determine whether minimally invasive mitral valve surgery (mini-MVS) improves clinical outcomes and resource utilization compared with conventional open mitral valve surgery (conv-MVS) in patients undergoing mitral valve repair or replacement. METHODS : A comprehensive search of MEDLINE, Cochrane Library, EMBASE, CTSnet, and databases of abstracts was ...

the main objective of a research program, whose output is presented here, has been to estimate “ventilation coefficients”, a critical parameter in determining air pollution concentration near the surface ground which signifies the ability for natural ventilation of an air shed in an urban or rural area. relevant measured data from the city of tehran has been used to calibrate and further de...

Membrane vesicles (MVs) are bilayer structures which bleb from bacteria, and are important in trafficking biomolecules to other bacteria or host cells. There are few data about MVs produced by the Gram-positive commensal-derived probiotic Lactobacillus reuteri; however, MVs from this species may have potential therapeutic benefit. The aim of this study was to detect and characterize MVs produce...

Structure from Motion with Multi-View Stereo photogrammetry (SfM-MVS) is increasingly used in geoscience investigations, but has not been thoroughly tested in gullied savanna systems. The aim of this study was to test the accuracy of topographic models derived from aerial (via Unmanned Aerial Vehicle, ‘UAV’) and ground-based (via handheld digital camera, ‘ground’) SfM-MVS in modelling hillslope...

We investigate the problem of obtaining a dense reconstruction in real-time, from a live video stream. In recent years, Multi-view stereo (MVS) has received considerable attention and a number of methods have been proposed. However, most methods operate under the assumption of a relatively sparse set of still images as input and unlimited computation time. Video based MVS has received less atte...

Natural membrane vesicles (MVs) derived from various types of cells play an essential role in transporting biological materials between cells. Here, we show that exogenous compounds are packaged in the MVs by engineering the parental cells via liposomes, and the MVs mediate autonomous intercellular migration of the compounds through multiple cancer cell layers. Hydrophobic compounds delivered s...

The environment inside airliner cabins has attracted increasing attention. Instantaneous airflow, as one of the fundamental parameters airflow field, affects aspects cabin such occupant comfort and airborne disease transmission. This study evaluated characteristics instantaneous in with different ventilation systems (mixing displacement ventilation) focused on region above passengers' heads, wh...