نتایج جستجو برای: paraffin leakage

تعداد نتایج: 45197  

1999
E. T. Carlen

A new, active, normally-open blocking microvalve that uses the thermal expansion of a sealed, thin paraffin patch for actuation has been fabricated and tested. The entire structure is batch-fabricated by surface micromachining the actuator and channel materials on top of a single substrate. The paraffin actuated microvalves are suitable for applications requiring many devices on a single die, l...

Journal: :dental research journal 0
majid kazem faranak mahjour omid dianat saman fallahi mohammad jahankhah

background: one ideal property of a root-end fi lling material is its apical sealing ability. the aim of this in vitro study was to assess bacterial and dye microleakage of white and gray mineral trioxide aggregate (wmta and gmta), portland cement and calcium-enriched mixture (cem) cement used as root-end fi lling material, and to assess the agreement between these two test methods. materials a...

Journal: :acta medica iranica 0
saeid abrishamkar department of neurosurgery, alzahra hospital, isfahan university of medical sciences, isfahan, iran. nima khalighinejad department of neurosurgery, alzahra hospital, isfahan university of medical sciences, isfahan, iran. payam moein department of neurosurgery, alzahra hospital, isfahan university of medical sciences, isfahan, iran.

in this study, we examined the role of early acetazolamide administration in reducing the risk of cerebrospinal fluid (csf) leakage in patients with a high risk of permanent csf leakage. in a randomised clinical trial, 57 patients with a high risk of permanent csf leakage (rhinorrhea, otorrhea, pneumatocele or imaging-based evidence of severe skull-base fracture) were analysed. in the experimen...

Journal: :آب و خاک 0
احمد نظامی جواد رضایی بهداد علیزاده

abstract the grasses cold tolerance is the most important limiting factor for its cultivation in temperate regions, so using cold tolerant cultivars is essential for grasses successful cultivation. in order to evaluation freezing stress tolerance of several species of grasses, this study was conducted in agricultural faculty of ferdowsi university of mashhad as a factorial complete randomized b...

Journal: :IMF working paper 2021

علی اکبر بیدقیان, , فرزاد بی نیاز, ,

Erectile dysfunction is an important problem for men and their families which has an organic cause in about 50 percent of cases. When there is a vasculogenic etiology for this defect, radiologic assessment is unavoidable. Cavernosometry and Cavernosography are ultimate procedures for diagnosis of venous leakage. There is no reliable data about this defects in Iran. The objective of this study w...

2003
Frank Vöhringer Timo Kuosmanen Rob Dellink

Economic models suggest that in many cases, market leakage rates of greenhouse gas abatement reach the two-digit percentage range. Consequently, the Marrakesh Accords require Clean Development Mechanism (CDM) projects to account for leakage. Despite this, most project proponents neglect market leakage for their project, because the influence of an individual project on market prices seems to be...

Journal: :Ophthalmology Retina 2017

Journal: :Nature Reviews Chemistry 2020

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