نتایج جستجو برای: compression

تعداد نتایج: 90778  

Aim: The objective of this work was to study the effects of formulation variables on the release kinetics of paracetamol tablet formulation. Materials and Methods: Paracetamol tablets were formulated using wet granulation (WG) and direct compression (DC) using two predetermined pressures. Avicel, dicalcium phosphate (DCP) and pregelatinized starch (PGS) were used as directly compressible...

Journal: :acta medica iranica 0
o. h. sorour i. el - shafey khairy samra

100 cases of extradural spinal compression comprising 74% of all cases of spinal  compression were included. ver-tebral and extravertebral compression occurred with  equal frequency.  1. most of tjhe cases occurred between 20-50 years of age, with no significant dif'fe'rerlce1s between various causes, except in vertebral hemangioma which tend o affect the younger age groups (10-20). males were ...

Background and Aims: When a neuronal axon is damaged, it returns to the neuron cell body and destroys it. Tanacetum bodjnordens as antioxidant and anti-apoptotic effects. This study aimed to determine the neuroprotective effects of ethyl acetate and n-butanol and hydroalcoholic extracts of Tanacetum bodjnordens on sciatic nerve compression in male rats. Materials and Methods: In this experimen...

Usually, it is common to use the internal heat exchanger subcooler-superheater after the condenser and before the expansion valve in the compression refrigeration cycles. In this study, the effect of the heat exchanger is evaluated by using recovery heat exchanger after the compressor and before the condenser. To this end, the vapor compression refrigeration cycle with conventional heat exchang...

The work presented in this paper is an attempt to evaluate the exhaust emission characteristics of a hydrogen-ethanol dual fuel combination with different percents of hydrogen substitutions (i.e. 0-80 % by volume and of 20 % increment ) at three different compression ratios of 7:1, 9:1 and 11:1. Experimental investigations have been carried out on a computer interfaced with; four-stroke cycle, ...

Ali Sarreshtehdari Mahmoud Chahartaghi, Sayed Ehsan Alavi,

During hot seasons the inlet temperature of Nitrogen increases, as a result compressor consumes more power for compressing a specific mass ratio of fluid and consequently total energy consumption of the compressor increases as well. In this research, a three stage centrifugal compressor with intercooler was modeled thermodynamically in order to decreases the energy consumption of the compressor...

Journal: :SMPTE Motion Imaging Journal 2019

Journal: :the archives of bone and joint surgery 0
seyyed morteza kazemi bone joint and related tissue research center, akhtar hospital, shahid beheshti university of medical sciences, tehran, iran reza minaei bone joint and related tissue research center, akhtar hospital, shahid beheshti university of medical sciences, tehran, iran farshad safdari bone joint and related tissue research center, akhtar hospital, shahid beheshti university of medical sciences, tehran, iran ali keipourfard akhtar hospital, shahid beheshti university of medical sciences, tehran, iran rozhin forghani bone joint and related tissue research center, akhtar hospital, shahid beheshti university of medical sciences, tehran, iran alemeh mirzapourshafiei clinical research development center, babol university of medical sciences, babol, iran

background: there are few studies comparing the biomechanical properties of angled blade plate and locking compression plates in supracondylar osteotomy. in the current randomized study, we prospectively compared the clinical and radiological outcomes of supracondylar osteotomy using these two plates. methods: forty patients with valgus knee malalignment were randomly assigned to two equal numb...

Journal: :archives of trauma research 0
nicholas tobias johannes raison department of trauma and orthopaedics, ashford and st peter’s nhs trust, london, england.; department of orthopaedics, st peter’s hospital, chertsey, kt16 0pz, london, england. tel: +44-2086479975 wisam alwan department of trauma and orthopaedics, ashford and st peter’s nhs trust, london, england. amit abbot department of trauma and orthopaedics, ashford and st peter’s nhs trust, london, england. mohamed farook department of trauma and orthopaedics, ashford and st peter’s nhs trust, london, england. arshad khaleel department of trauma and orthopaedics, ashford and st peter’s nhs trust, london, england.

conclusions the predictive value of the two statistically significant red flags only marginally raises the clinical suspicion of spinal cord or cauda equina compression. effective risk stratification of patients presenting to the ed with acute back pain is crucial; however, this study did not support the use of these red flags in their current form. patients and methods it was a retrospective c...

ژورنال: دانشور پزشکی 2015
جلالی ندوشن, محمدر ضا, حشمتی, مرجان, گیاهی, شیرین,

Background and Objective: Despite current efforts for treating the spinal cord injury (SCI), cell therapy and pharmacological methods have a great curing potential in this field. In this study, application of acetyl L carnitine as one of the possible pharmacologic approaches in SCI treatment was investigated. The effect of this material in adult rats suffering from spinal cord compression was e...

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