نتایج جستجو برای: wi
تعداد نتایج: 12444 فیلتر نتایج به سال:
Though GPS is the most popular positioning system at present it does not perform well in indoor environments and metropolitan city areas. Wi-Fi positioning has received much attention due to its advantages with respect to indoor positioning and the wide spread of the Wi-Fi access points (APs). Its performance in an outdoor environment is also of interest as a Wi-Fi based positioning system can ...
For low-cost and continuous indoor navigation, an INS/Wi-Fi (inertial navigation system/Wi-Fi) integrated system is expected to yield a synergetic effect resulting in higher navigation performance than using the standalone systems. In this paper, the authors explore the integration of Wi-Fi measurements with data from microelectromechanical systems based inertial measurement unit for indoor veh...
This paper summarizes Wi-SUN communication systems and their physical (PHY) layer and media access control (MAC) specifications. Firstly, the Wi-SUN communication systems are categorized into three. The key PHY and MAC standards, IEEE 802.15.4g and .4e, that configure the systems are explained, and fundamental transmission performances of the systems in the PHY layer and MAC layer are evaluated...
This paper investigates Waveform Interpolation (WI) applied low bit rate wideband speech coding. An analysis of the evolutionary behaviour of wideband Characteristic Waveforms (CWs) shows that direct application of the classical WI algorithm may not be appropriate for wideband speech. We propose a modification whereby CW quantisation is performed using classical WI decomposition for the low fre...
Let ∆̂n,q = ∑n i=1 wi`i andWn = ∑n i=1 wi with wi = p(xi) q(xi) and `i = `(f1(xi), yi)−`(f2(xi), yi). We note that for examples drawn according to q(x), E[∆̂n,q] = n∆ and E[Wn] = n. The random variables w1, . . . , wn and w1`1, . . . , wn`n are iid, therefore the central limit theorem implies that 1 n∆̂ 0 n,q and 1 nWn are asymptotically normally distributed with √ n ( 1 n ∆̂n,q −∆ ) n→∞ −→ N (0,Va...
During exercise, dynamic hyperinflation-induced intrinsic positive end-expiratory pressure (PEEPi) and decreased dynamic lung compliance (CL,dyn) of patients with chronic obstructive pulmonary disease (COPD) increase the elastic work of inspiration (Wi) more than would be predicted from the increase in tidal volume (VT). This contributes significantly to their exertional breathlessness. In 10 s...
Department of Pediatrics, Division of Hematology/Oncology, Medical College of Wisconsin, Milwaukee, WI; Children’s Research Institute, Children’s Hospital of Wisconsin, Milwaukee, WI; Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI; Zimmerman Program Clinical Center, Medical College of Wisconsin, Milwaukee, WI; University of Colorado School of Medicine, Aurora, CO; Department ...
‘⇒’ Let V be a finite dimensional vector space and let T ∈ L(V, W ). Assume that T is surjective. Let B = {v1, . . . vn} be a basis for V . Notice that even though a priori W need not be finite dimensional, the fact that T is surjective implies that T (B) = {T (v1), . . . T (vn)} is a spanning set for W and thus W is finite dimensional. Since T (B) spans W (a finite dimensional vector space), w...
به منظور ارزیابی سودمندی سیستمهای کشت مخلوط نخود ( cicer arietinum ) و جو ( hordeum vulgare ) تحت شرایط رقابت با علفهای هرز، آزمایشی در مزرعه آموزشی و پژوهشی دانشکده کشاورزی دانشگاه بوعلی سینا همدان طی سال زراعی 1389 انجام شد. آزمایش به صورت کرت های یکبار خرد شده در قالب طرح بلوکهای کامل تصادفی در سه تکرار اجرا گردید. کنترل علفهرز به عنوان عامل اصلی در دو سطح عاری از علفهرز ( wf ) و آلوده ...
O1 The reliability of the three dimensional spinal modeling of patients with adolescent idiopathic scoliosis using EOS system Aria Bagheri, Xue-Cheng Liu, Channing Tassone, John Thometz, Amie Chaloupka, Sergey Tarima Division of Biostatistics, Medical College of Wisconsin Milwaukee, WI, USA; Department of Orthopaedic Surgery Milwaukee, WI, USA; Musculoskeletal Functional Assessment Center Milwa...
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