1,722,525 research outputs found
Vice-Chancellor's Industry Engagement Award
No full textTeam award
Winner: Corrosion Mitigation Technology for the Royal Australian Navy
Recipients: Jennifer Wood, Muhammad Awais Javed, Elizabeth Mathews, Steven Knight, Scott Wade, Suresh Palanisamy
Multiple tuning curve based wideband RC VCO design / Muhammad Awais
Full text linkVoltage controlled Oscillator (VCO) is a key element in defining overall system specification. It is widely used in communication equipment as an essential part of frequency synthesizers and phase-locked loops (PLL). In achieving high tuning range performance an oscillator pays its penalty in degraded phase noise output. Resorting into a LC based VCO at high frequency which exhibit superior phase noise performance foresees large active area consumption with a proportional increase in the cost. The evolution of deep-submicron CMOS technology mandates the need of low power solution with a proportional headroom limitation. In view of the highlighted challenges, this work proposes a RC based Voltage Controlled Oscillator (RC-VCO) with programmable tuning curves to achieve a wideband frequency operation. Fabricated and characterized in 130 nm standard CMOS platform, the VCO switches between the tuning curves with a programmable current injection. The VCO exhibit a frequency operation between 2.05 to 4.19 GHz, resulting in a wideband tuning range of 68.5%. The proposed architecture consumes a maximum dc current of 8.8mA measured at the highest frequency of operation. The design also observes a phase noise of -99.3 dBc/Hz at an offset of 1MHz with a carrier of 4.19GHz. The proposed RC-VCO achieves a Figure of Merit of -161.4 dBc/Hz (FOM) and -178.1 dBc/Hz (FOMT), respectively. The summary of performance favours the architecture in the integration of a wideband frequency synthesizer
인간 상지의 임피던스 특성 및 모델
No full text학위논문(석사) - 한국과학기술원 : 기계공학전공, 2011.2, [ vii, 128 p. ]When the hand is displaced from the equilibrium posture by an external disturbance, a force is generated to restore the original position and there is ample evidence that humans are able to control the endpoint impedance of their arms in response to active destabilizing force fields. Goal of this thesis is to extract the impedance information of human arm when the arm is in the particular posture and while moving on a particular trajectory. In this work two models of the arm, Joint Space Model and Muscle Space Model, are considered while major emphasize is given to Muscle Space Model. The musculoskeletal model describes planar movements of the upper arm and forearm, which are moved by eight lumped muscles with nonlinear dynamics. A non-linear Hunt-Crossley model is considered for muscles model which is the function of the velocity of the shortening or lengthening, muscle length at that instance and also on the viscoelastic parameters of the corresponding muscle. End-point impedance is estimated by simulating a given model, by transforming a muscle force to joint torque and then to endpoint impedance, which is generated due to a particular movement or while maintaining a particular arm posture. The dynamics at the endpoint level are estimated so that a comparison can be made with the experiments. The resulted impedance parameter helps to design the control of robots and human machine interface.한국과학기술원 : 기계공학전공
Training transfer and transfer motivation : the influence of individual, environmental, situational, traning design and affective reaction factors / Muhammad Awais Bhatti.
Full text linkCorrection: Shabbir et al. Effect of Yeast-Fermented Citrus Pulp as a Protein Source on Nutrient Intake, Digestibility, Nitrogen Balance and In Situ Digestion Kinetics in Nili Ravi Buffalo Bulls. Animals 2021, 11, 1713
No full textAwais Shabbir was mistakenly written as “Muhammad Awais” in the original publication [...
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
sj-pdf-1-wie-10.1177_0309524X211027356 – Supplemental material for Potential of wind energy in Medina, Saudi Arabia based on Weibull distribution parameters
No full textSupplemental material, sj-pdf-1-wie-10.1177_0309524X211027356 for Potential of wind energy in Medina, Saudi Arabia based on Weibull distribution parameters by Khaled S AlQdah, Raed Alahmdi, Abdulrahman Alansari, Abdulrahman Almoghamisi, Mohanad Abualkhair and Muhammad Awais in Wind Engineerin
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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