نتایج جستجو برای: configuration

تعداد نتایج: 127840  

Journal: :International Journal of Integrated Care 2021

The International Journal of Integrated Care (IJIC) is an online, open-access, peer-reviewed scientific journal that publishes original articles in the field integrated care on a continuous basis.IJIC has Impact Factor 5.120 (2020 JCR, received June 2021)

Journal: :international journal of advanced design and manufacturing technology 0
h. s. patil

abstract: a continuously variable transmission (cvt) is a transmission which may change step less by way of an infinite variety of effective gear ratios between maximum and minimum values. this contrasts with different mechanical transmissions that solely permit just a few different distinct gear ratios to be selected. continuously variable transmissions (cvts) are mechanical devices that allow...

Journal: :international journal of automotive engineering 0
h. shojaeefard narmak, tehran sohrabiasl narmak, tehran sarshari sadra st., vanak sq., tehran

intake system design as well as inlet ports and valves configuration is of paramount importance in the optimal performance of internal combustion engines. in the present study, the effect of inlet ports design is investigated on om-457la diesel engine by using a cfd analysis and the avl-fire code as well. a thermodynamic model of the whole engine equipped with a turbocharger and an intercooler ...

Journal: :iranian biomedical journal 0
بهرام حقیقی bahram haghighi محمد یاری mohamad yari شهراز توری shahraz tori

the mechanism by which bi-and trivalent cations affect human liver phosphatidatephosphohydrolase (pap) activity was investigated. bivalent cations up to 1 mm increased pap activity whereas at higher concentrations the activity of the enzyme decreased. the stimulatory concentration for trivalent cations such as al3+ and cr3+, however, was much lower being 2 m m and 1 m m, respectively. all catio...

Journal: :iranian endodontic journal 0
sepanta hosseinpour mohammad javad kharazifard akbar khayat mandana naseri

introduction: it is essential for clinicians to have knowledge about root canal configuration, although its morphology varies largely in different ethnicities and even in different individuals within the same ethnic group. the current study reviewed the root canal configuration of root canals in mandibular first and second premolars among iranian population based on independent epidemiological ...

Journal: :journal of dentistry, shiraz university of medical sciences 0
mahroo vojdani biomaterial research center, dept. of prosthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran. anahita safari dept. of prosthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran. mina mohghegh dept. of prosthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran. soheil pardis dept. of pathology, school of dentistry, shiraz university of medical sciences, shiraz, iran. farideh mahdavi postgraduate student of prosthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran.

statement of the problem: although all-ceramic restorations are broadly used, there is a lack of information concerning how their fit is affected by fabrication procedure and marginal configuration. purpose: the purpose of this study was to evaluate the marginal fit of zirconia cad/cam ceramic crowns before and after porcelain firing. the influence of finish line configuration on the marginal f...

A. Yazdian, M. Mohamadian, S. M. Dehghan,

In this paper a hybrid active DC line conditioner for fluctuations and ripples reduction in voltage and current of DC power systems is proposed. Malfunctions in operation of equipments and systems which are supplied by low quality distribution power systems are one of the main effects of DC voltage ripple. In the proposed configuration a hybrid system including series and shunt active line ...

Abstract Urban parks are important public multifunctional space used for a wide range of activities. The usage levels of parks depend on the spatial characteristics of the spaces, where its forms and occupancies are referred as the usage-spatial relationship. Natural elements spatial complexity and park usability is of interest in this study. A photo - questionnaire was conducted among 296 of p...

Journal: :gas processing 0
mostafa mafi department of mechanical engineering, imam khomeini international university, qazvin, iran majid amidpour faculty of mechanical engineering, k. n. toosi university of technology, tehran, iran mojtaba nayenian faculty of mechanical engineering, k. n. toosi university of technology, tehran, iran gholam reza salehi mechanical engineering department, islamic azad university, nowshahr branch, iran bahram ghorbani faculty of mechanical engineering, k. n. toosi university of technology, tehran, iran

abstract: minimizing the work consumed in refrigeration system is the most effective measure to reduce the cost of products in sub-ambient chemical processes. the introduction of mixed working fluids into refrigeration system in place of pure working fluids is a recent advancement applied in the field. due to the lack of systematic design method for mixed refrigerant cycle (mrc), conventional a...

Journal: :محیط شناسی 0
پرستو پریور احمد رضا یاوری احد ستوده

tehran the capital city of iran, with a population of about 8 million and an area of over 700 km2 is one of the most polluted metropolises in the world. tehran is suffering from a tremendous reduction in its sink capacity for absorption and assimilation of pollution which is generally due to uncontrolled urban sprawl and failure in consideration of ecological aspects into regional land use plan...

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