نتایج جستجو برای: laser percussion drilling

تعداد نتایج: 197384  

Journal: :Mathematical and Computer Modelling 2005
Tasawar Hayat A. H. Kara Ebrahim Momoniat

K e y w o r d s F o u r t h g r a d e fluid, Unsteady flow, Lie symmetries. 1. I N T R O D U C T I O N In recent years, considerable efforts have been usefully devoted to the s tudy of flow of nonNewton ian fluids. This is ma in ly due to their m a n y appl icat ions in pe t ro leum drilling, manufactu r ing of food and paper, and other similar activities. A vast a m o u n t of l i te ra ture i...

2008
Anol Bhattacherjee Christopher J. Davis Neset Hikmet Varol O. Kayhan

This paper examines the diverse nature of user reactions to information technology (IT) within the social-historical context of its organizational use. Employing activity theory as a conceptual framework, we conduct an interpretive analysis of physicians work, perceptions, and IT usage experience at a large community hospital to understand why some of these physicians were favorably disposed to...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده پزشکی 1390

nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...

Journal: :Brain and cognition 2010
Chen-Gia Tsai Chien-Chung Chen Tai-Li Chou Jyh-Horng Chen

Numerous music cultures use nonsense syllables to represent percussive sounds. Covert reciting of these syllable sequences along with percussion music aids active listeners in keeping track of music. Owing to the acoustic dissimilarity between the representative syllables and the referent percussive sounds, associative learning is necessary for the oral representation of percussion music. We us...

Journal: :Micromachines 2014
Chuan-Jie Wang Gang Chen Dong Luan Peng Zhang

The rapid growth of the micro-electro-mechanical systems (MEMS) is being driven by the rapid development of the micro manufacturing processes. Laser beam machining is one of the micro manufacturing processes which can shape almost all ranges of engineering materials. In this study, the effect of laser power on the quality of drilled micro holes using Cu50Zr50 amorphous alloys foils is experimen...

Journal: :JSM (Jurnal Seni Musik) 2022

This study aims to develop learning media by using hard waste as a percussion instrument. The use of at the university level is very important in process. Learning useful tool for students go through teaching and process courses. uses qualitative analysis methods. Qualitative research method used collect, sort, classify, synthesize, make an overview, create index. target this medium Department ...

2010
J. Bovatsek A. Tamhankar

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t a r t i c l e i n f o Keywords: Thin films Photovoltaics Solar cell Laser scribing Damage threshold Laser–ma...

Journal: :Asian nursing research 2011
Minhee Suh Margaret Heitkemper Choi-Kwon Smi

PURPOSE Chest physiotherapy (CPT) is commonly used for mechanically ventilated patients, but little is known about its physiological effects, particularly in patients with acute lung injury (ALI). The aim of the study was to determine the benefits and risks of delivering multimodal respiratory physiotherapy to mechanically ventilated patients with ALI receiving paralytic agents. METHODS A rep...

Journal: :Clinical Neurophysiology 2018
Christoph Czarnetzki André Truffert Abdelhafid Mekideche Antoine Poncet Christopher Lysakowski Martin R. Tramèr Michel R. Magistris

OBJECTIVE To study whether the contraction evoked by muscle percussion stems from the excitation of the muscle or of the nerve and to discuss the changes of this response in neuromuscular disorders. METHODS In 30 neurologically healthy patients undergoing surgery (for ear, nose, or throat problems unrelated to the study) under general anesthesia with propofol and sufentanil we measured with a...

Journal: :British heart journal 1971
D E Bedford

Percussion of the abdomen as a means of distinguishing between tympanites and ascites dates back into antiquity, but percussion of the thorax starts with Auenbrugger (Fig. I) whose Inventum Novum ex Percussione Thoracis Humani (Fig. 2) was published in I76i, the same year as Morgagni's great work on pathological anatomy. Auenbrugger's discovery of percussion was not entirely fortuitous for his ...

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