100 research outputs found
Effectiveness of SPEC CPU2006 and multimedia applications on Intel's single, dual and quad core processors
No full textThe author has granted permission for their work to be available to the general public.In the past few years, the design of general-purpose computers has been evolving consistently and many such computers, including PCs, now contain microprocessors with more than one processing core; along with this there is a tremendous increase in the diversity of applications that are being run on these computers with general purpose processors. For example, applications such as video conferencing, video-on-demand, high-resolution games with high quality graphics and sounds etc. are used progressively more on personal computers and laptops. As new computer designs and new applications are developed, it becomes necessary to analyze how these new designs and programs interact with each other.
Processor speedup has been achieved by increasing clock speeds and, more recently, adding multiple processing cores to the same chip, as clock rates approached their theoretical limits. However, adding more hardware does not necessarily translate into better performance. This is due to the fact that, by increasing the number of cores on a single chip, challenges arise with memory and cache coherence as well as communication between the cores, additionally unless computer programmers learn to write parallel applications, the full benefit and efficiency of multi-core processors will not be attained.
The main objectives of this thesis are- firstly, to find out how effectively the programs in the SPEC CPU2006 Benchmark suite and Multimedia applications utilize the hardware features of state of the art processors; secondly to identify the processor components that affect performance adversely.
In this thesis characterization has been made on the overall execution behavior of SPEC CPU2006 and Multimedia workloads using Intel Pentium IV, Intel core2 duo, Intel core2 Quad core micro architecture, which includes the micro architectural components such as CPI, branch predictors, instruction mix, cache hierarchy, execution units and their impact on the system efficiency. It was observed that except CPI, SPEC CPU2006 has shown performance improvement in multi-core processors whereas the multimedia applications have shown improvement in all the performance metrics such as CPI, branch prediction rate and Cache performance.Electrical and Computer Engineerin
ANALYSIS OF THE CHARACTER OF BI NU MENGJIANGNU BY CONTRASTING WOMENS VIEW ON HUSBAND THROUGH AGES
No full textNovel BINU is one of Sutongs excellent works. Through Binu, the character which is called Meng
jiangnu, could see weak women in order to find her lovely husband exhausted all its effort to walk a long road.
Meng jiangnus story is one of the four chineses ancient legendary loves. Other are Niu Lang Zhinu, Liang
Sanbo Yu Zhu Ying Tai, and Bai She Zhuan, have been widely spread for thousands of years. The legend of
Meng jiangnu has been spread with oral tradition in folkloric. The earliest legend can be traced back to the
Zuo Zhuan. Through Novel BINU, the author wants to observe Examining Meng jiangnu characterization by
contrasting ways of womens view through ages in Novel BINU by Sutong. And then, the author also introduces
Novel BINU, Meng jiangnu myths, and through XINGGE, to examine the characterization of Meng jiangnu. By
examining the character Meng jiangnu, the author finds that Meng jiangnu had melancholy and choleric
character. Both characters are shown out in difficulties. Meng jiangnu treated her husband better than
women in that age. The women in that age just cried in waiting the fate changes
Mining a Ubiquitous Time and Attendance Schema Using Random Forests for Intrusion Detection
No full textAbstractOur case study used Random Forest to measure the intrusion of unauthorized personnel to certain designated areas of the organization. Intrusions happening at high security areas could cost the organization in terms of loss of material and in worst cases of lives as well. The time attendance system also act as a security system as it involves access to doors and barriers through which only authorized personnel should access
Key Chemotypes for the Rational Design of Dual AChE/BACE-1 Inhibitors
No full textA classical one-drug-one-target approach is ineffective against diseases with a
multi-factorial pathogenesis, such as Alzheimer's disease (AD). On the other hand, multitarget
approaches can provide a higher level of pharmacological interference which can
better affect the disease network. Acetylcholinesterase (AChE), beta-site amyloid precursor
protein cleaving enzyme 1 (β-secretase, BACE-1), glycogen synthase kinase 3 beta
(GSK-3β), monoamine oxidases (MAOs), metal ions in the brain, N-methyl-D-aspartate
(NMDA) receptor, 5-hydroxytryptamine (5-HT) receptors, the third subtype of histamine
receptor (H3 receptor), and phosphodiesterases (PDEs) are the main major targets of this
network whose connection are still far from being fully understood. Aware of this limitation,
we herein focus on the main chemotypes employed for AChE/BACE-1 targeting.
These include mostly bioactive compounds based on chalcones, triazines, triazoles, piperidines, and flavonoids
Witness 3.20 (Vol. 72)
No full text“While the world watched the coronavirus pandemic progress in the third quarter of 2020, we kept our focus steady on ensuring that India awakes to a better and safer future, post-Covid. We celebrated Bihar Earth Day with the organic farming community of Jamui district-Bihar and marked the date with a special ceremony unlike any other. Plus, find out all about a new tool that reveals the true cost of air pollution in your city.”
“Bihar Earth Day or Bihar Prithvi Divas was conceptualised by the stateChief Minister in 2011 to spread awareness about the impacts of climate change”
Witness 2.20 (Vol. 71)
No full text“The second quarter of 2020 began with the COVID-19 outbreak shaking the globe. India’s farmers were some of the worst impacted by the lockdown, as transport, labour and markets were disrupted. We worked to help farmers sell their produce at fair prices and in turn fed the starving daily-wagers. Plus, air pollution levels saw a major decline across India, as the lockdown put a halt to all regular human activities.
Witness 4.20 (Vol. 73)
No full text“As the pandemic continues to take its course across the globe, we’re focused on ensuring that India awakes to a better future, through our new Urban Mobility campaign. Meanwhile in Bihar, we’ve been helping vulnerable farmer groups ensure that their food and nutritional security is protected. Plus, a startling revelation about the invisible poisonous gas that hangs in our air.”
“The pandemic has given us an opportunity to build back better and the Urban Mobility campaign leads the way towards a better future. Read about our new campaign and more.
“KNOWLEDGE AND PRACTICE REGARDING SAFETY STANDARDS OF ORALRADIOLOGY AMONG DENTAL PRACTITIONERS IN DENTAL COLLEGE, BIHAR”CORRESPONDING AUTHOR - DR BINU SINGH
No full textIn Dentistry, radiographic evaluation is required but professional negligence or ignorancecanleadtoradiation hazards so the knowledge regarding safety standards among Dentists is necessary. Theaimofthe study was to investigate the knowledge and behavior of Dental practitioner regardingsafetyduringoral radiographic procedures. It was a survey based study enrolled 100 dentists. A13semi -structured,validated questionnaire was used to assess knowledge and practice related to safety standardsinOralRadiology. The study revealed that amongst 100 Practitioners; 48 had > 5 years experiences, 86hadone machine, 61 had less than 5 years old machine. 97 used RVG, 73 took less than 10radiographsperday, 65 didn’t hold the X-Ray film with their fingers, 59 didn’t use lead apron and49stoodnearpatient without wearing lead apron, 54 did periodic check-up only when needed, 50 hadtorepeat,54didn’t know safe distance, 75 didn’t know the exposure time and 52 took radiographsofpregnantwomen. The study conclude that the periodic training and regular monitoring should bemandatorytoimprove knowledge about radiation and dose reduction technique
Performance Comparison of Two Different Energy Conservation Mac Protocols
No full textAbstractIn Wireless Sensor Networks (WSN), neglecting the effects of varying channel quality can lead to an unnecessary wastage of precious battery resources. This can result in the rapid depletion of sensor energy and partitioning of the network. Fairness is a critical issue when accessing a shared wireless channel and fair scheduling must be employed to provide proper flow of information in WSN. In this paper, a channel adaptive MAC protocol with a traffic-aware dynamic power management algorithm is developed for efficient packet scheduling and queuing in a sensor network, with time varying characteristics of wireless channel taken into consideration. To avoid buffer overflow and achieve fairness for the poor quality nodes, a Load prediction algorithm is designed. In addition to these, a traffic aware dynamic power management scheme is also designed to minimize energy consumption by continuously turning off the radio interface of unnecessary nodes that are not included in the routing path. By Simulation results, the proposed protocol is seen to achieve high Throughput and fairness while reducing the energy consumption when compared to a traffic adapted sleep/listening MAC protoco
Colonoscopy use by Primary Care Physicians and Colorectal Cancer Incidence and Mortality
No full textWe first studied factors associated with the rate of colonoscopy by primary care physicians (PCPs) in Ontario between the years 1996 and 2005. Next, we conducted an Instrumental Variable Analysis (IVA) to estimate the effect of colonoscopy on colorectal cancer (CRC) incidence and mortality on average-risk subjects aged 50-74 years. Finally, we explored two study cohorts, one by including subjects who had the outcomes during the exposure period (unselected cohort) and the other cohort by excluding those subjects (restricted cohort). We estimated the absolute risk reduction associated with colonoscopy in preventing CRC incidence and mortality using traditional regression analysis, propensity score analysis and IVA. PCPs who were Canadian medical graduates and with more years of experience were more likely to use colonoscopy. PCPs were more likely to use colonoscopy if their patient populations were predominantly women, older, had more illnesses, and if their patients resided in less marginalized neighborhoods (lower unemployment, fewer immigrants, higher income, higher education, and higher English/French fluency). Using PCP rate of discretionary colonoscopy as an instrumental variable, receipt of colonoscopy was associated with a 0.60% absolute reduction in 7-year CRC incidence and a 0.17% absolute reduction in 5-year risk of death due to CRC. The unselected cohort showed an increase in CRC incidence and mortality associated with colonoscopy, whereas the restricted cohort showed a reduction in CRC incidence and mortality associated with colonoscopy. In the restricted cohort, using different statistical models, the absolute risk reduction varied from 0.52-0.60% for CRC incidence and 0.08-0.17% for CRC mortality. There were social disparities in the use of colonoscopy by PCPs and this disparity increased as the overall use of colonoscopy increased over time. Colonoscopy is effective in reducing incidence and mortality due to CRC. Different methods of subject selection and statistical analysis provided different estimates of colonoscopy effectiveness.Ph
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