نتایج جستجو برای: lock in
تعداد نتایج: 16977860 فیلتر نتایج به سال:
vintage, technology lock-in, institutional lock-in, clean development mechanisms.
In this lab, we explore the principles of the use of a lock-in amplifier, using a He-Ne laser, light chopper, and a photodiode as the lock-in input. We explain and use the concepts of phase sensitive detection, dynamic reserve, and time constants to determine both the range of linearity of the photodiode in use, as well as the frequency response of the photodiode. Furthermore, we determine whet...
هدف از انجام پژوهش حاضر، بررسی پدیده ارتعاشات ناشی از گردابهها و کاهش اثرات آن با بهرهگیری از جسم کنترلی میباشد. به همین منظور ابتدا سیلندر استوانهای شکل قرار گرفته بر روی بستر الاستیک و در معرض جریان یکنواخت سیال شبیهسازی میگردد. پس از مقایسه نتایج به دست آمده با سایر پژوهشهای عددی و آزمایشگاهی مشابه و اطمینان از دقت و صحت نتایج، جسم کنترلی با سطح مقطع دایرهای و در 5 نسبت فاصله مختلف د...
Differential lock is a means of improving tractor performance. This system causes the revolution of the axles to become equal. It, improves traction, decreases abrasion of drive tires, improves fuel consumption, and increases tractor work rate. Despite advantages of the system, differential lock has not been optimized in Iran. Thus, a semi-automatic differential lock system for MF-285 tractor w...
This study was conducted to investigate the effects of age and sex on the fleece characteristics of 40 Iranian indigenous Khorasan goats. Goats were divided into two different sex and age (kids and adults) groups. Fiber characteristics under study were: fleece weight, fiber length, lock length, fiber diameter, coefficient of fiber diameter, breaking load, resistance, elongation, hair percentage...
Differential lock is a means of improving tractor performance. This system causes the revolution of the axles to become equal. It, improves traction, decreases abrasion of drive tires, improves fuel consumption, and increases tractor work rate. Despite advantages of the system, differential lock has not been optimized in Iran. Thus, a semi-automatic differential lock system for MF-285 tractor w...
The objective of this study was to identify and analyze the two contradicted effects of the habits in a current used system on the acceptance of a new system. The first one is lock-in to a current used system, which negatively influence the intention of using a new system. The second one is familiarity and expertise for a new system from rich experiences through the repetitive use of similar sy...
Cloud computing is a new paradigm for emerging technology in the computing and IT industries. Cloud computing offers a new pathway for business agility and supports a faster time to market by offering ready-toconsume cloud-based IT services. SMEs can wisely take advantage of the cloud computing services, without the need for upfront costs. The perception of cloud computing from an SME stance is...
this study was conducted to investigate the effects of age and sex on the fleece characteristics of 40 iranian indigenous khorasan goats. goats were divided into two different sex and age (kids and adults) groups. fiber characteristics under study were: fleece weight, fiber length, lock length, fiber diameter, coefficient of fiber diameter, breaking load, resistance, elongation, hair percentage...
introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...
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