نتایج جستجو برای: thermal needs
تعداد نتایج: 462014 فیلتر نتایج به سال:
The designer's preoccupation to reduce the energy needs and get a better thermal quality of ambiances helped in the development of several packages simulating the dynamic behaviour of buildings. This paper shows the adaptation of a method of thermal analysis, the nodal analysis, linked to the case of building's thermal behaviour. We take successively an interest in the case of conduction into a...
This paper describes the thermal management and design challenges of testing packaged integrated circuit (IC) devices, specifically device thermal conditioning and device-under-test (DUT) temperature control. The approach taken is to discuss the individual thermal design issues as defined by the device type (e.g. memory, microcontroller) and tester capabilities. The influence of performance-par...
abstract this study evaluated and compared medical terminology and english for the students of medicine (ii) as two representatives of the textbooks available on the iranian market for teaching english to the students of medicine. this research was performed on the basis of a teacher’s and a number of students’ attitudes and the students’ needs analysis for two reasons: first, to investigate...
The current investigation sought to examine the learning and target needs of mechanical engineering (ME) students based on the learners and instructors’ attitudes though an explanatory mixed-method design. To elicit learners’ perceptions of English for Science and Technology (EST), 114 ME undergraduate students and 13 EST instructors from four Iranian state universities took part in a large qua...
There has been a growing interest in thermal management materials due to the prevailing energy challenges and unfulfilled needs for thermal insulation applications. We demonstrate the exceptional thermal management capabilities of a large-scale, hierarchal alignment of cellulose nanofibrils directly fabricated from wood, hereafter referred to as nanowood. Nanowood exhibits anisotropic thermal p...
one of the primary stages of climatic architectural design is the knowledge of the environmental conditions and meteorology data analyzing according to human thermal comfort and usage of building material. nowadays access to meteorology data of all iran meteorology stations is available on the website of the iran meteorology organization. therefore every architect who feels himself/herself resp...
Although thermal performance is widely recognised to be pivotal in determining species' distributions, assessment of this performance is often based on laboratory-acclimated individuals, neglecting their proximate thermal history. The thermal history of a species sums the evolutionary history and, importantly, the thermal events recently experienced by individuals, including short-term acclimat...
Using telecommunication as an example, it is argued that the electronics industry badly needs a change in attitude towards reliability thinking. The role of thermal design and reliability qualification is discussed in context to current industrial needs for short design cycles and rapid implementation of new technologies. Current and future practices are discussed in the context of newly-emergi...
Utilization of combined heat and power (CHP) systems that simultaneously fulfill the electrical and heating energy needs is considered as an effective strategy for management of energy demand and consumption. Overall operational efficiency in excess of 70% is made possible, when these systems are utilized, and it is expected that needs for both the demand and supply sides are met even under ...
The focus on the needs and drives for adaptation of the building automatically leads to changing needs and demands of the occupants of the building. Building should really take care of its occupants and show adaptable behaviour and reaction to the changing outdoor environment during the day. Design for adaptability should start with the occupants needs for comfort and indoor air quality. These ...
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