نتایج جستجو برای: شبکه lc
تعداد نتایج: 64879 فیلتر نتایج به سال:
شبکه های حسگر بی سیم بدنی امکان برقراری ارتباط بی سیم بین گره های حس کننده و ایستگاه های سیار پزشکی را برای نمایش علایم حیاتی بیمار فراهم می کنند. حسگرها چون روی اعضای بدن قرار می گیرند باید تا حد ممکن کوچک باشند تا با وجود آنها روی اعضاء بدن کاربر احساس ناخوشایندی نداشته باشد. برای ایجاد چنین شرایطی، سیستم های استفاده شده در حسگر باید توان مصرفی پایینی داشته باشند تا منبع انرژی مورد نیاز آن...
تجویز مکرر آگونیست های اوپیاتی به اثر ضد دردی اوپیات ها تحمل ایجاد می کند که کاربرد آن ها را برای تسکین درد محدود می کند. اثرآنتاگونیست گیرنده ی نوع 1 اورکسین (oxr1) بر روند تحمل به مرفین با رویکرد رفتاری و الکتروفیزیولوژی بررسی گردیده است. برای دردسنجی از آزمون tail flick استفاده شد. روزی یک بار مرفین سولفات (10 mg/kg, i.p.) به مدت 7 روز، تزریق می شد و 30 دقیقه بعد از هر تزریق میزان بی دردی ب...
We discuss progress and issues relevant to the design of a highly segmented silicontungsten electromagnetic calorimeter. Our design features a complete readout chip which is integrated onto each detector wafer, thus reducing the effective channel count by a factor of about 1000. We apply this design to the SD detector of the American LC Physics Group, but some elements could be applicable elsew...
Comprehensive two-dimensional liquid chromatography (LC×LC) using the Agilent 1290 Infi nity 2D-LC Solution with DAD and MS detection is applied for the analysis of citrus oils. The developed method uses normal phase liquid chromatography in the fi rst dimension and reversed-phase liquid chromatography in the second dimension. This combination provides good orthogonality and is valuable for pro...
Screen magnification is an important means to support visually impaired people when working with computers. Many improvements have been made on appropriate software. But unfortunately, in the last years, those improvements where mainly in realization detail. A number of problems remain, that, to our minds, need conceptual rethinking. In this paper, we present a new concept for magnification sof...
In [1] a prospective current-mode ARC filter implementation based on a wave description principle has been introduced. This idea can be easily modified to obtain sampled-data SI filter structure, as shown in [2]. Similarly to the "conventional" digital wave filters, the analog implementation is based on the description of the passive LC prototype ladder structure branches using scattering matri...
Minimization of power loss in the tuning circuits of frequency-tunable small resonant antennas, such as microstrip patches, is studied. First, the frequency shift and the associated power loss in certain tuning circuits are theoretically calculated based on approximate circuit models of fairly narrow-band resonant antennas. By investigating the ratio of frequency shift and loss, an optimal conf...
The use of shunted piezoelectric patches in reducing vibration and sound radiation of structures has several advantages over passive viscoelastic elements, e.g., lower weight with increased controllability. The performance of the piezoelectric patches depends on the shunting electronics that are designed to dissipate vibration energy through a resistive element. In past efforts most of the prop...
In this study, we investigate the circuit model that twenty hard oscillators with two LC resonators are coupled by inductors. We observe two kinds of waves by the change of initial states. First waves are changing phase states between two adjacent oscillators from in-phase to anti-phase or from antiphase to in-phase and continuously exist. We call this wave as “phase inversion waves”. Second wa...
CD133 (prominin-1), a 5-transmembrane glycoprotein, has recently been considered to be an important marker that represents the subset population of cancer stem-like cells. Herein we report the isolation of CD133-positive cells (LC-CD133(+)) and CD133-negative cells (LC-CD133(-)) from tissue samples of ten patients with non-small cell lung cancer (LC) and five LC cell lines. LC-CD133(+) displaye...
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