نتایج جستجو برای: compression

تعداد نتایج: 90778  

ژورنال: دانشور پزشکی 2020
Heshmati, Marjan , Jalali Nadoushan, Mohammadreza , Jamali, Mehran ,

Background and Objective: Spinal cord compression is a relatively common neurological complication in developing country. This study was designed to assess neuroprotective effect of acetyl L-carnitine. Materials and Methods: 16 adult Sprague Dawley rats weighing 250 to 300 g were divided into 4 randomized groups, namely, A-laminectomy with daily intraperitoneal injection of acetyl L-carnitine....

Journal: :international journal of iron & steel society of iran 2015
a. meysami r. amini najafabadi

the hot compression tests were carried on x45crniw189 valve steel (x45) in the temperature rangeof 1000– 1200 °c and the strain rate range of 0.004 – 0.5 s-1 in order to study the high temperaturesoftening behavior of this steel. for the exact prediction of flow stress, the effective stress-effectivestrain curves were obtained from experiments under various conditions. on the basis of experimen...

Compression can be done by lossy or lossless methods. The lossy methods have been used more widely than the lossless compression. Although, many methods for image compression have been proposed yet, the methods using intelligent skipping proper to the visual models has not been considered in the literature. Image inpainting refers to the application of sophisticated algorithms to replace lost o...

Journal: :مهندسی عمران فردوسی 0

compressibility characteristics of fine-grained soils are often the most important parameters for settlement evaluation of the founded layers. the compression index which is the slope of virgin curve is usually for determination of settlement potential of fine grained soils. in this research, the effects of different physical and index properties of soil samples were investigated on compression...

Journal: :پژوهش های علوم و فناوری چوب و جنگل 0

paulownia is one of the fast-growing species that was attended to supply industrial requirement in recent years. the application of this species is limited because of low density, so wood modification via compression and densification is an effective method. for this purpose, the paulownia boles were prepared from shastkalateh forest and cut into blocks with 60×20×20 mm dimension. the variable ...

Within recent years the use of medical images for diagnosis purposes has become necessity. The limitation in transmission and storage space also growing size of medical images has necessitated the need for efficient method, then image Compression is required as an efficient way to reduces irrelevant and redundancy of the image data in order to be able to store or transmits data. It also reduces...

Image data require huge amounts of disk space and large bandwidths for transmission. Hence, imagecompression is necessary to reduce the amount of data required to represent a digital image. Thereforean efficient technique for image compression is highly pushed to demand. Although, lots of compressiontechniques are available, but the technique which is faster, memory efficient and simple, surely...

Journal: :acta medica iranica 0
seyed behzad jazayeri sina trauma and surgery research center and student's scientific research center, tehran university of medical sciences, tehran, iran. and student’s scientific research center, tehran university of medical sciences, tehran, iran. masoumeh firouzi tissue repair laboratory, institute of biochemistry and biophysics (ibb), tehran university of medical sciences, tehran, iran. shayan abdollah zadegan sina trauma and surgery research center, tehran university of medical sciences, tehran, iran. and research centre for neural repair, tehran university of medical sciences, tehran, iran. niloufar saeedi sina trauma and surgery research center, tehran university of medical sciences, tehran, iran. elham pirouz sina trauma and surgery research center, tehran university of medical sciences, tehran, iran. mohsen nategh research centre for neural repair, tehran university of medical sciences, tehran, iran.

prior animal models have shown that rats sustaining 3-second immediate spinal cord compression had significantly better functional recovery and smaller lesion volumes than rats subjected to compression times of 1 hour, 6 hours, 3 weeks, and 10 weeks after spinal cord injury. we compare locomotor rating scales and spinal cord histopathology after 3 seconds and 10 minute compression times. . ten ...

Journal: :international journal of electrical and electronics engineering 0
sina mehdizadehi siamak najarianii farhad farmanzadiii mehdi khoshgoftariv

the purpose of this study is to survey cross section changes of the animal brain samples during the tension and compression tests and comparison of the experimental results for three animals: bovine, sheep, and rabbit. a linear elastic theory with considering the necking in tension and barreling in compression has been considered for brain tissue. bridgman method for tension and cross section u...

Ch. Niranjan Patra, Chakraborty Santanu M Vimala Devi, Pandit Hemant Kumar Singh Satya Prakash V. Jagannath Patro

The dried fruit of Terminalia chebula is widely used for its laxative properties. The objective of the present study was to examine the flowability and compressibility of Terminalia chebula fruit powder, subsequently developing its tablet formulations by utilizing wet granulation and direct compression technology. Initial studies on flowability and compressibility revealed that the fruit powder...

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