نتایج جستجو برای: effective air

تعداد نتایج: 878422  

2013
S. Bouzenada T. Salmon L. Fraikin A. Kaabi A. Léonard

Desiccants can be used in conjunction with solar energy to provide a viable alternative to traditional air conditioning techniques. Liquid desiccant regeneration was proved to be an effective method to extract the moisture from solution with a relatively less energy in order to regenerate the desiccant. An experimental study was carried out to analyze the effect of temperature for regeneration ...

2014
Jian Liu Wan Shou Lei Zhang Wei Liang Dong-Wei Huang Yong Liu

Crater-like electrospinning is a novel and cost-effective method for the mass scale production of nanofibers. The gas channel in the polymer solution plays a key role to produce a bubble Taylor cone or a crater-like Taylor cone, which is the key to eject the thin fluid jets (finally solidified into nanofibers) in electrospinning process. However, the formation mechanism of gas channel of crater...

Journal: :ماشین های کشاورزی 0
سجاد عباسی سعید مینایی محمد هادی خوش تقاضا

in this study thin layer drying of corn in a convective dryer was investigated at air temperatures of 50, 60 and 70ºc and air flow rates of 1, 1.4 and 1.8 kg min-1. experiments were performed in completely randomized design (crd). the effect of air temperature and flow rate on drying time, drying rate, effective diffusivity coefficient and activation energy were studied. results showed that the...

Journal: :journal of agricultural science and technology 2014
h. darvishi m. h. khoshtaghaza s. minaee

the present study investigated the influence of air temperature and velocity on the drying kinetics and specific energy consumption during fluidized bed drying of soybean at 80, 100, 120 and 140ºc and airflow rates of 1.8, 3.1 and 4.5 m s-1. six mathematical models for describing the fluidized bed drying behavior were investigated. the value of the drying rate coefficient (k) increased with inc...

Journal: :Pediatrics 2005
Michele Walsh William Engle Abbot Laptook S Nadya J Kazzi Susie Buchter Maynard Rasmussen Qing Yao

OBJECTIVE Oxygen delivery through nasal cannulae to convalescent preterm infants is a common but largely unstudied practice. To learn more about current nasal cannula oxygen delivery practices, we examined the variations in oxygen delivery through nasal cannulae among the centers of the Neonatal Research Network, the frequency of prescription of low levels of oxygen, and the success of weaning ...

Journal: :Physical chemistry chemical physics : PCCP 2015
Sudip Kumar Mondal Ken-ichi Inoue Shoichi Yamaguchi Tahei Tahara

We study the effective polarity of an air/liquid-mixture interface by using interface-selective heterodyne-detected electronic sum frequency generation (HD-ESFG) and vibrational sum frequency generation (HD-VSFG) spectroscopies. With water and N,N-dimethylformamide (DMF) chosen as two components of the liquid mixture, the bulk polarity of the mixture is controlled nearly arbitrarily by the mixi...

Journal: :Anesthesia and analgesia 2003
Chiharu Negishi Kenji Hasegawa Shihoko Mukai Fumitoshi Nakagawa Makoto Ozaki Daniel I Sessler

UNLABELLED Serious adverse outcomes from perioperative hypothermia are well documented. Consequently, intraoperative warming has become routine. We thus evaluated the efficacy of a novel, nondisposable carbon-fiber resistive-heating system. Twenty-four patients undergoing open abdominal surgery lasting approximately 4 h were randomly assigned to warming with 1) a full-length circulating water m...

Journal: :Environmental Health Perspectives 1995
R A Etzel

Exposure to indoor air pollutants such as tobacco smoke and dust mites may exacerbate childhood asthma. Environmental interventions to reduce exposures to these pollutants can help prevent exacerbations of the disease. Among the most important interventions is the elimination of environmental tobacco smoke from the environments of children with asthma. However, the effectiveness of reducing ast...

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