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السجلات المعروضة 41 -- 50 من 845
Ionic Liquids in Bulk and at an Interface
(
John Wiley & Sons, Inc
, 2015 , Book chapter)
In the present chapter, we describe different types of investigation carried out by research groups based at CQE/IST/UTL and ITQB/UNL and their ramifications in terms of surface science. Most of the work is focused on the ...
Modelling the degradation of vibration characteristics of reinforced concrete beams due to flexural damage
(
John Wiley & Sons, Ltd.
, 2015 , Article)
This paper presents an improved crack model incorporating non-linearity of flexural damage in concrete to reproduce changes in vibration properties of cracked reinforced concrete beams. A reinforced concrete beam model ...
Maximizing Energy Efficiency in Multiple Access Channels by Exploiting Packet Dropping and Transmitter Buffering
(
IEEE
, 2015 , Article)
Quality of service (QoS) for a network is characterized in terms of various parameters specifying packet delay and loss tolerance requirements for the application. The unpredictable nature of the wireless channel demands ...
Implementation and Analysis of Reward Functions under Different Traffic Models for Distributed DSA Systems
(
IEEE
, 2015 , Article)
In this paper, we implement and analyze a resource allocation protocol for distributed dynamic spectrum allocation (DSA) systems. The DSA protocol is a learning-based protocol that allows secondary users (SU) to exploit ...
Beamforming OFDM Performance under Joint Phase Noise and I/Q Imbalance
(
IEEE
, 2015 , Article)
Phase noise (PHN) and in-phase/quadrature (I/Q) imbalance are two major RF impairments in direct-conversion wireless transceivers. Beamforming and orthogonal frequency division multiplexing (OFDM) schemes have been adopted ...
Impacts of urbanization on the distribution of heavy metals in soils along the Huangpu River, the drinking water source for Shanghai
(
Springer Berlin Heidelberg
, 2015 , Article)
We investigated the horizontal and vertical distribution of heavy metals (Hg, Pb, Zn, Cu, Cd, As, Ni, and Cr) in soils in the water source protection zone for Shanghai to study the origins of these metals, their connections ...
Greenhouse gas (GHG) emissions in the Sultanate of Oman
(
Society of Chemical Industry and John Wiley & Sons, Ltd
, 2015 , Article)
Worldwide, many countries are being affected by greenhouse gas (GHG) emissions. The Sultanate of Oman is no exception. In Oman, both oil- and natural-gas-related activities have the most important shares of the nation's ...
Effects of perceived social support and family demands on college students' mental well-being: A cross-cultural investigation
(
John Wiley & Sons, Ltd
, 2015 , Article)
The effects of perceived social support and family demands on college students' mental well-being (perceived stress and depression) were assessed in 2 samples of Jordanian and Turkish college students. Statistically ...
ARCS-based tactics to improve students' motivation in computer programming course
(
IEEE
, 2015 , Conference Paper)
Most students find computer programming difficult subject, which frustrates them and affects their performance. In this paper, we present our experience of using ARCS model to improve students' motivation when learning ...
Targeting Osteopontin, the Silent Partner of Na+/H+ Exchanger Isoform 1 in Cardiac Remodeling
(
Wiley Periodicals, Inc.
, 2015 , Article)
Cardiac hypertrophy (CH), characterized by the enlargement of cardiomyocytes, fibrosis and apoptosis, contributes to cardiac remodeling, which if left unresolved results in heart failure. Understanding the signaling pathways ...