نتایج جستجو برای: dbm

تعداد نتایج: 2156  

2005
Bazil TAHA-AHMED Miguel CALVO-RAMÓN Leandro de HARO-ARIET

The effect of UWB interference on the DCS-1800 and GSM-900 downlink is studied for different UWB power density. For high UWB power density (-70 dBm/MHz), the effect of UWB signals is very high when the distance between UWB transmitter and DCS-1800 receiver is less than 1 m. For low UWB power density (-100 dBm/MHz), the effect of the UWB signals is quasi null even if the distance between the UWB...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - دانشکده علوم پایه 1392

کوپلیمریزاسیون رادیکال آزاد وینیل استات (vac) و دی بوتیل مالئات (dbm) در حالات توده و محلول در حلال کلروفرم (حلال و عامل انتقال زنجیر) با استفاده از آزوبیس ایزوبوتیرونیتریل (aibn) به عنوان آغازگر در شرایط مختلف انجام شد. از روش های 1h-nmr و ft-ir جهت شناسایی کوپلیمر سنتزی استفاده شد. پارامترهای سینتیکی پلیمریزاسیون نظیر وابستگی میزان و سرعت تبدیل به غلظت آغازگر، دما و تغییر نسبت مونومرها، به وس...

Journal: :Arthropod Management Tests 1997

2017
Aiguo Xu Guangcai Zhang Yudong Zhang

Mathematically, the typical difference of Discrete Boltzmann Model (DBM) from the traditional hydrodynamic one is that the Navier-Stokes (NS) equations are replaced by a discrete Boltzmann equation. But physically, this replacement has a significant gain: a DBM is roughly equivalent to a hydrodynamic model supplemented by a coarse-grained model of the Thermodynamic Non-Equilibrium (TNE) effects...

2011
Peter Fontana Rance Cleaveland

This paper studies the performance of sparsematrix-based data structures to represent clock zones (convex sets of clock values) in an on-the-fly predicate equation system model checker for timed automata. We analyze the impact of replacing the dense difference bound matrix (DBM) with both the linked-list CRDZone and array-list CRDArray data structure. From analysis on the pairedexample-by-examp...

Mahdi Forouzandeh Moghadam Masoud Soleimani, Zahra Sadat Hashemi,

    Objective(s): Ex vivo expansion of hematopoitic stem cells is an alternative way to increase umbilical cord blood (UCB)-CD34+ cells for bone marrow transplantation. For this purpose demineralized bone matrix (DBM) and mineralized bone allograft (MBA) as two scaffolds based on bone matrix and stem cell niche, were simultaneously used to enhance the effect of human mesenchymal pro...

Journal: :J. Solid-State Circuits 2013
Matteo Bassi Michele Caruso Andrea Bevilacqua Andrea Neviani

A 65-nm CMOS receiver tailored for breast cancer diagnostic imaging is demonstrated for the first time. The receiver shows 31-dB conversion gain, NF dB, 28 dBm, IIP dBm and IIP dBm over a band from 1.75 to 15 GHz. A programmable injection-locked divider generates quadrature LO signals with a I/Q phase error over three octaves without requiring any calibration or tuning. The receiver shows a fli...

2016
Graeme Gange Jorge A. Navas Peter Schachte Harald Søndergaard Peter J. Stuckey

Relational numeric abstract domains are very important in program analysis. Common domains, such as Zones and Octagons, are usually conceptualised with weighted digraphs and implemented using difference-bound matrices (DBMs). Unfortunately, though conceptually simple, direct implementations of graph-based domains tend to perform poorly in practice, and are impractical for analyzing large code-b...

2013
Noelia Hernández José M. Alonso Manuel Ocaña Mahesh K. Marina

In this paper, different representations of WiFi access point signal information are tested on a hierarchical indoors localization system to identify the one that yields the least amount of localization error. Four representations were considered: Received Signal Strength (RSS) in dBm, RSS in mW , Visibility and both RSS in dBm and Visibility. The localization system was tested in two different...

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