نتایج جستجو برای: optimized reflux ratio

تعداد نتایج: 604416  

2009
Rajendu Srivastava Jay G Berry Matt Hall Earl C Downey Molly O’Gorman J Michael Dean Douglas C Barnhart

OBJECTIVE To examine the impact of fundoplication on reflux related hospital admissions for children with neurological impairment. DESIGN Retrospective, observational cohort study. Setting 42 children's hospitals in the United States. PARTICIPANTS 3721 children with neurological impairment born between 2000 and 2005 who had at least one hospital admission at a study hospital before their fu...

2004
M Nilsson R Johnsen W Ye K Hveem J Lagergren

Background/Aim: The aetiology of gastro-oesophageal reflux is largely unknown. The authors’ aim was to examine the relation between lifestyle habits and gastro-oesophageal reflux symptoms. Subjects: Participants of two consecutive public health surveys in Nord-Trondelag, Norway. Methods: In a case control study within the two public health surveys, 3153 individuals who in the second survey repo...

2016
Sai Kiran Aditha Aditya Dileep Kurdekar L.A. Avinash Chunduri Sandeep Patnaik Venkataramaniah Kamisetti

The aqueous based reflux method useful for the green synthesis of nanostructures is described in detail. In this method, the parameters: the order of addition of precursors, the time of the reflux and the cooling rate should be optimized in order to obtain the desired phase and morphology of the nanostructures. The application of this method is discussed with reference to the synthesis of CZTS ...

Journal: :Gut 2004
M Nilsson R Johnsen W Ye K Hveem J Lagergren

BACKGROUND/AIM The aetiology of gastro-oesophageal reflux is largely unknown. The authors' aim was to examine the relation between lifestyle habits and gastro-oesophageal reflux symptoms. SUBJECTS Participants of two consecutive public health surveys in Nord-Trondelag, Norway. METHODS In a case control study within the two public health surveys, 3153 individuals who in the second survey rep...

Journal: :Molecules 2012
Wei Xu Kedan Chu Huang Li Yuqin Zhang Haiyin Zheng Ruilan Chen Lidian Chen

An ionic liquids (IL)-based microwave-assisted approach for extraction and determination of flavonoids from Bauhinia championii (Benth.) Benth. was proposed for the first time. Several ILs with different cations and anions and the microwave-assisted extraction (MAE) conditions, including sample particle size, extraction time and liquid-solid ratio, were investigated. Two M 1-butyl-3-methylimid...

Journal: :BMJ 2003
Anan Raghunath A Pali S Hungin David Wooff Susan Childs

OBJECTIVES To ascertain the prevalence of Helicobacter pylori in patients with gastro-oesophageal reflux disease and its association with the disease. DESIGN Systematic review of studies reporting the prevalence of H pylori in patients with and without gastro-oesophageal reflux disease. DATA SOURCES Four electronic databases, searched to November 2001, experts, pharmaceutical companies, and...

Journal: :Separations 2023

α-guaiene is one of the primary sesquiterpene compounds used as a flavor and fragrance agent in patchouli oil. The fraction oil that rich has been successfully isolated. In present work, was isolated from crude through vacuum fractional distillation followed by GC-MS identification. Three important process parameters—feed volume, reflux ratio, applied run pressure—were investigated optimized us...

Journal: :Journal of vascular surgery 2003
Alessandra Puggioni Fedor Lurie Robert L Kistner Bo Eklof

BACKGROUND AND PURPOSE Deep venous reflux resolution after great saphenous vein surgery has been reported, but the studies evaluated mainly patients with deep segmental reflux. We prospectively analyzed the effects of greater saphenous vein ablation on coexisting primary deep axial venous reflux compared with segmental venous reflux. Patients and methods Between February 1997 and June 2001, pat...

Journal: :The Computer Science Journal of Moldova 2011
Cinthujaa C. Sivanantha Gennaro J. Maffia

HYSYS process modeling software was used to analyze the effect of reflux ratio and number of trays on the purity of ethylene in a vapor recompression distillation column and also in an ordinary distillation column. Analysis of data showed that with increased pressure a higher reflux ratio is needed to obtain a purity of 99.9% for both towers. In addition number of trays was varied to see its ef...

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