scholarly journals Parametric Yield-Driven Resource Binding in High-Level Synthesis with Multi-Vth/VddLibrary and Device Sizing

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Yibo Chen ◽  
Yu Wang ◽  
Yuan Xie ◽  
Andres Takach

The ever-increasing chip power dissipation in SoCs has imposed great challenges on today’s circuit design. It has been shown that multiple threshold and supply voltages assignment (multi-Vth/Vdd) is an effective way to reduce power dissipation. However, most of the prior multi-Vth/Vddoptimizations are performed under deterministic conditions. With the increasing process variability that has significant impact on both the power dissipation and performance of circuit designs, it is necessary to employ statistical approaches in analysis and optimizations for low power. This paper studies the impact of process variations on the multi-Vth/Vddtechnique at the behavioral synthesis level. A multi-Vth/Vddresource library is characterized for delay and power variations at different voltage combinations. Meanwhile, device sizing is performed on the resources in the library to mitigate the impact of variation, and to enlarge the design space for better quality of the design choice. A parametric yield-driven resource binding algorithm is then proposed, which uses the characterized power and delay distributions and efficiently maximizes power yield under a timing yield constraint. During the resource binding process, voltage level converters are inserted between resources when required. Experimental results show that significant power reduction can be achieved with the proposed variation-aware framework, compared with traditional worstcase based deterministic approaches.

2021 ◽  
Author(s):  
◽  
Sandy Cairns-James

<p>Sport psychology is well recognised and accepted as an important aspect of sports training, especially for elite athletes. Sport psychology focuses on teaching skills and methods such as goal setting and mental preparation for athletes so that they can develop their psychological abilities to the same high level as their physical abilities. Few researchers have linked sports and singing training, but it appears that many of the techniques used in sport psychology could be of value in developing singers’ practice and performance skills.  This study examined the overall impact of introducing sport psychology based training into the curriculum of a cohort of tertiary level contemporary singing students, using a qualitative case study approach. Five categories from sport psychology methods were identified for the purpose of this research: deliberate practice, self-efficacy, motivation, goal setting and peak performance were introduced into the teaching of the singing programme. Analysis of the impact revealed that sport psychology methods were not easily transferable into this vocal curriculum. The outcomes showed that the participants’ level of development in terms of learning skills was at a lower level than the demands of sport psychology</p>


VLSI Design ◽  
2002 ◽  
Vol 14 (3) ◽  
pp. 273-286
Author(s):  
N. D. Zervas ◽  
K. Masselos ◽  
Y. A. Karayiannis ◽  
C. E. Goutis

A systematic methodology for energy dissipation reduction of multimedia applications realized on architectures based on embedded cores and application specific data memory organization is proposed. Performance and area are explicitly taken into account. The proposed methodology includes two major steps: A high-level code transformation step that reorganizes the original description of the target application. The second major step includes the determination of the processor, memory and bus organization of the system and is briefly described. Experimental results from several real-life demonstrators prove the impact of the high level step of the proposed methodology.


2018 ◽  
Vol 25 (3) ◽  
pp. 17-22 ◽  
Author(s):  
Oscar Romero-Ramos ◽  
Emilio Fernández-Rodríguez ◽  
Rafael Merino-Marbán ◽  
Daniel Mayorga-Vega ◽  
Robert Podstawski

Abstract Introduction. Cross triathlon is a sport consisting of three segments: swimming, off-road cycling, and running. Our study analyses the differences in performance between genders and changes in performance in selected age categories at the ITU Cross World Championships held between 2011 and 2016. Material and methods. During this period, a total of 1,933 triathletes were analysed (1,472 men and 461 women). Two-way analyses of variance (ANOVA) were used to examine the impact of sex differences and age-related changes on performance (time, percentage of time, and performance ratio) in swimming, cycling, running, and total race. Results. The age groups with the highest level of participation were persons aged 40-44 and 45-49 years among men and women, respectively. With regards to performance in the different age groups, in men and women, its high level was maintained between 25 and 49 years, and it decreased significantly from the age of 50-54. In men, the best results in cycling and total race time were obtained in the 30-34 age group and in swimming and running in the 40-44 group. Women obtained the best results in running in the 25-29 age group, in cycling in the 30-34 group, and in swimming and total race time in the 35-39 group. Conclusions. The results of the study have confirmed that there is a demand for sports in 40+ age groups. As for performance in the different age groups, it was on a high level between 25 and 49 years and decreased significantly from the age of 50-54 onwards. According to these results, the sports training of these triathletes should be oriented so that they obtain their best results between 30 and 35 years of age.


2021 ◽  
Author(s):  
Marjan Meurisse ◽  
Adrien Lajot ◽  
Yves Dupont ◽  
Marie Lesenfants ◽  
Sofieke Klamer ◽  
...  

Abstract Background: With the spread of coronavirus disease 2019 (COVID-19), an existing national laboratory based surveillance system was adapted to daily monitor the epidemiological situation of SARS-CoV-2 in the Belgium by following the number of confirmed COVID-19 infections, the number of performed tests and the positivity ratio. We present these main indicators of the surveillance over a one-year period as well as the impact of the performance of the laboratories, regarding speed of processing the samples and reporting results, for surveillance.Methods: We describe the evolution of test capacity, testing strategy and the data collection methods during the first year of the epidemic in Belgium.Results: Between the 1th of March 2020 and the 28th of February 2021, 9,487,470 tests and 773,078 COVID-19 laboratory confirmed cases were reported. Two epidemic waves occurred, with a peak in April and October 2020. The capacity and performance of the laboratories improved continuously during 2020 resulting in a high level performance. Since the end of November 2020 90 to 95% of test results are reported at the latest the day after sampling was performed.Conclusions: Thanks to the effort of all laboratories a performant exhaustive national laboratory based surveillance system to monitor the epidemiological situation of SARS-CoV-2 was set up in Belgium in 2020. On top of expanding the number of laboratories performing diagnostics and significantly increasing the test capacity in Belgium, turnaround times between sampling and testing as well as reporting were optimized over the first year of this pandemic.


Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 388
Author(s):  
Kyran M. Staunton ◽  
Jianyi Liu ◽  
Michael Townsend ◽  
Mark Desnoyer ◽  
Paul Howell ◽  
...  

Effective surveillance of Aedes aegypti (Linnaeus, Diptera: Culicidae) is critical to monitoring the impact of vector control measures when mitigating disease transmission by this species. There are benefits to deploying male-specific traps, particularly when a high level of catch-specificity is desired. Here, the rationale behind the developmental process of an entirely new trap which uses a sound lure to capture male Ae. aegypti, the male Aedes sound trap (MAST), is presented as a target product profile with findings from developmental trials of key trap components and performance. Trial results suggest that the presence of a black base associated with the trap influenced male catches as did variations in size of this base, to a degree. Trap entrance shape didn’t influence catch rates, but entrance size did. No significant differences in catch rates were found when sound lures were set to intermittent or continuous playbacks, at volumes between 63–74 dB or frequencies of 450 Hz compared to 500 Hz. Additionally, adult males aged 3 days post-eclosion, were less responsive to sound lures set to 500 Hz than those 4 or 6 days old. Lastly, almost no males were caught when the MAST directly faced continual winds of 1.5 ms−1, but males were captured at low rates during intermittent winds, or if the trap faced away from the wind. The developmental process to optimising this trap is applicable to the development of alternate mosquito traps beyond Aedes sound traps and provides useful information towards the improved surveillance of these disease vectors.


Author(s):  
I. Rusyno ◽  
O. Tsiupiaka

Objective: to study the basic quality of life in patients with chronic kidney disease and their relationship, with different numbers formed arteriovenous fistula. Materials and methods. Interviewed 56patients, who are treated with chronic hemodialysis department. To study the quality of life used (KDQOL-SF ™). Also used a questionnaire that enables presence fistula determine the impact on quality of life of patients. Results. Using statistical method cluster analysis, made differentiation studied three groups - clusters, which differ in different levels of the indicators of QOL, namely «Patients middle-manifestation of physical and psychological indicators of QOL» – 40%, «Patients with low the manifestation of physical and psychological QOL parameters «- 25% of subjects, and» Patients with high level of physical and psychological manifestations of QOL performance «- 35% sample of of the patients. Based on statistical comparative analysis revealed differences between the estimated quality of life in men and women. Role functioning due to physical condition in women is slightly lowered than men. In women, there is a greater level of pain than men. Men overall higher rate their health than women. Men are characterized by a higher level of social functioning than women. Conclusions. Patients with chronic hemodialysis age have difficulties in physical functioning and performance of daily affairs. Mental health by increasing the biological age becomes stronger and fitter. His attitude to the presence of fistula in upper limb showing men and women equally, that they feel discomfort and limitations in performing daily routine. The more surgeries performed to form vascular access in patients, the occurrence characteristically uncomfortable sensations in all aspects of life


2021 ◽  
Author(s):  
◽  
Sandy Cairns-James

<p>Sport psychology is well recognised and accepted as an important aspect of sports training, especially for elite athletes. Sport psychology focuses on teaching skills and methods such as goal setting and mental preparation for athletes so that they can develop their psychological abilities to the same high level as their physical abilities. Few researchers have linked sports and singing training, but it appears that many of the techniques used in sport psychology could be of value in developing singers’ practice and performance skills.  This study examined the overall impact of introducing sport psychology based training into the curriculum of a cohort of tertiary level contemporary singing students, using a qualitative case study approach. Five categories from sport psychology methods were identified for the purpose of this research: deliberate practice, self-efficacy, motivation, goal setting and peak performance were introduced into the teaching of the singing programme. Analysis of the impact revealed that sport psychology methods were not easily transferable into this vocal curriculum. The outcomes showed that the participants’ level of development in terms of learning skills was at a lower level than the demands of sport psychology</p>


Author(s):  
Monther Eldaia ◽  
Mustafa Hanefah ◽  
Ainulashikin Marzuki

Purpose The purpose of this study is to examine the effect of Board of Directors Effectiveness (BODE) on the performance of Malaysian Takaful companies licensed by the Central Bank of Malaysia. In addition, the study investigates the moderating effect of Shariah Committee Quality (SCQ) on the relationship between BODE and companies’ performance. Design/methodology/approach This study uses a sample of 11 Malaysian Takaful companies during the period of 2010-2017. While BDE and SCQ are measured using indices, performance is proxied using ROA and ROE. A panel fixed effect regression analysis is used to test the impact of the BDE on the financial performance of Malaysian Takaful companies and the moderator role of SCQ. Findings The main finding of this study shows a positive association between BDE and performance. More specifically, boards with a high presence of independent, Muslim and female directors positively contribute to the performance of Malaysian Takaful companies. Another interesting finding is related to the positive moderating effect of SCQ on the relationship between BDE and performance. This result indicates that a high level of SCQ combined with a high level of board effectiveness improve performance. Practical implications The finding is of great importance to stakeholders and policymakers to improve their board effectiveness and the quality of the Shariah committee to reduce agency costs and to improve the performance of Malaysian Takaful companies. Originality/value This study adds to the prior literature by investigating for the first time the relationship between BDE and performance and the interaction effect of SCQ on the performance of Malaysian Takaful companies.


1991 ◽  
Vol 13 (3) ◽  
pp. 213-226 ◽  
Author(s):  
Forest J. Jourden ◽  
Albert Bandura ◽  
Jason T. Banfield

This study tested the hypothesis that conceptions of ability affect self-regulatory processes and the acquisition rate of a perceptual-motor skill. Subjects performed a rotary pursuit task under induced cognitive sets that task performance reflected inherent aptitude or acquirable skill. Their perceived self-efficacy, affective self-reactions, and performance attainments were measured over a series of trials. Subjects who performed the task under the inherent-aptitude conception of ability displayed no growth in perceived self-efficacy across phases, negative self-reactions to performances, low interest in the activity, and a limited level of skill development. In contrast, those who performed the task under the conception of ability as an acquirable skill displayed growth in perceived self-efficacy, positive self-reactions to their performances, widespread interest in the activity, and a high level of skill acquisition. The stronger the positive self-reactions, the greater the subsequent performance attainments.


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