نتایج جستجو برای: Collection Efficiency
تعداد نتایج: 570098 فیلتر نتایج به سال:
No current garbage collector combines space efficiency, low collector times, and mutator (application) locality for contemporaneously allocated objects. For example, free-list allocation coupled with mark-sweep collection achieves space efficiency, but poor mutator locality. On the other hand, contiguous (bump-pointer) allocation with copying collection provides mutator locality but poor space ...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
تصویرنگاری با استفاده از پرتوهای یونساز و غیریونساز جهت مطالعه استاتیکی و دینامیکی اعضای درونی موجودات زنده کمک قابل توجهی به درمان بیماری، پیشگیری و پیشگویی میزان بهبودی آن ارائه می نماید. یکی از روشهای تصویربرداری نوین، رادیوگرافی رقمی می باشد. تصویربرداری رقمی با پرتو ایکس یک فناوری در حال توسعه برای کاربردهای پزشکی است که با آن تفکیک فضایی spatial resolution و بازده کوانتومی (detective quan...
Understanding fluorescence propagation through a multiphoton microscope is of critical importance in designing high performance systems capable of deep tissue imaging. Optical models of a scattering tissue sample and the Olympus 20X 0.95NA microscope objective were used to simulate fluorescence propagation as a function of imaging depth for physiologically relevant scattering parameters. The sp...
Photon collection efficiency of fluorescent collectors is examined experimentally and by modelling, with a view to assess the potential of this attractive solar energy technology. The edge fluorescence of single dye collectors based on Rhodamine 6G and Coumarin 540A, manufactured by a simple fabrication technique, is investigated in detail. A novel technique for determination of the collection ...
We performed a calibration experiment on a Spectralon Target using a wavelength of 0.532 μm and a 60 cm lidar system coupled to a photon counter via a Triax 190 monochrometer. The complete system optics, including the telescope and monchromator, were modeled using a commercial ray-tracing program. Energy efficiency was calculated by generating large numbers of equal-area rays on the telescope i...
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