Cache-aware Roofline model: Upgrading the loft

The Roofline model graphically represents the attainable upper bound performance of a computer architecture. This paper analyzes the original Roofline model and proposes a novel approach to provide a more insightful performance modeling of modern architectures by introducing cache awareness, thus significantly improving the guidelines for application optimization. The proposed model was experim…

Architectural Support for Mitigating Row Hammering in DRAM Memories

DRAM scaling has been the prime driver of increasing capacity of main memory systems. Unfortunately, lower technology nodes worsen the cell reliability as it increases the coupling between adjacent DRAM cells, thereby exacerbating different failure modes. This paper investigates the reliability problem due to Row Hammering, whereby frequent activations of a given row can cause data loss for its…

An FPGA-based In-line Accelerator for Memcached

We present a method for accelerating server applications using a hybrid CPU+FPGA architecture and demonstrate its advantages by accelerating Memcached, a distributed key-value system. The accelerator, implemented on the FPGA fabric, processes request packets directly from the network, avoiding the CPU in most cases. The accelerator is created by profiling the application to determine the most c…

Accelerator Memory Reuse in the Dark Silicon Era

Accelerators integrated on-die with General-Purpose CPUs (GP-CPUs) can yield significant performance and power improvements. Their extensive use, however, is ultimately limited by their area overhead; due to their high degree of specialization, the opportunity cost of investing die real estate on accelerators can become prohibitive, especially for general-purpose architectures. In this paper we…

A Soft Error Tolerant Network-on-Chip Router Pipeline for Multi-Core Systems

Network-on-Chip (NoC) paradigm is rapidly evolving into an efficient interconnection network to handle the strict communication requirements between the increasing number of cores on a single chip. Diminishing transistor size is making the NoC increasingly vulnerable to both hard faults and soft errors. This paper concentrates on soft errors in NoCs. A soft error in an NoC router results in sig…

Analytical and FEM approach to reduce the cogging torque in in-wheel motors

In-wheel direct drive motors are placed inside drive wheels of electric vehicles and have to deliver large torque without any mechanical gear. Most often these machines are of synchronous type with permanent magnets and large pole-pair number. As a consequence of high peak torque, both cogging torque and torque ripple are increased if no measures are taken to decrease them. The vibrations due t…

BFA optimization for voltage and frequency control of a stand-alone wind gene…

A developed control strategy for autonomous wind generation unit is presented. Optimization techniques based on bacteria foraging algorithm and genetic algorithms are used to tune the proposed control parameters. The proposed system mainly consists of induction generator driven by wind turbine, synchronous machine, consumer load, discrete dump load, and gate turn-off thyristor-based power elec…

Running up and pulling into step of PM line-start motors with surface-mounted…

Permanent magnet (PM) synchronous motors with starting cage, already developed in the 1960s for variable-speed textile drives, become increasingly important as energy-efficient PM line-start motors. Differing from the standard design with integrated magnets, a rotor design with surface-mounted magnets is presented. In the planning and design phase of drives with PM line-start motors, the simul…

Effects of post-glacial phylogeny and genetic diversity on the growth variabi…

1. Growth rates of European silver fir (Abies alba Mill.) rapidly increased in the last century. At the same time, ring widths declined at the species southern distribution limits in the Mediterranean. Such diverse growth trends and responses have largely been attributed to regional climate conditions, but this was prior to considering the species’ post-glacial phylogeny. 2. A dendrochr…

Strategies African-American Cancer Survivors Use to Overcome Fears and Fatali…

Edisi

(2015) 30:629–635

ISBN/ISSN

DOI 10.1007/s13187-0

Deskripsi Fisik

J Canc Educ (2015) 30:629–635

Judul Seri

Cancer education

No. Panggil

-

A Formative Study of Colon Cancer Surveillance Care:Implications for Survivor…

Colon cancer is one of the most commonly diagnosedcancers in the United States, and an ncreasing number of survivors has underscored the need for improved colon cancer surveillance care uality. Post-treatment surveillance includes follow-up care visits and tests as well as psychosocial support and lifestyle counseling. This formative study explored the individual, interpersonal, and organizati…

Desire for Information in the Elderly: Interactions with Patients,Family, and…

Lung cancer chemotherapy decisions in patients ≥70 years old are complex. To assess the modes of communication with older lung cancer patients, we prospectively collected data.We assessed patients’ level of knowledge about diagnosis and prognosis. Eighty-three patients diagnosed with lung cancer from January 2006 to February 2008 were recruited from a single center. Logistic regression and…

A Community Coalition to Address Cancer Disparities:Transitions, Successes an…

Community-based participatory (CBP) strategies are considered important to efforts to eliminate disparities.This paper outlines how the Program for the Elimination of Cancer Disparities PECaD) uses CBP strategies as a part of a long-term cancer education, prevention, and control strategy in an urban community. Community partnerships have proved to be vital resources to inform ECaD’s agenda a…

A Framework for Training Transdisciplinary Scholars in Cancer Prevention and …

Traditionally, postdoctoral training programs largely have focused efforts within a single Discipline or closely related fields. Yet, addressing the complex questions around cancer prevention and control increasingly requires the ability to work and communicate across disciplines in order to gain a perspective that encompasses the multilevel and multifaceted issues involved with this public he…

Awareness and Perceptions of Clinical Trials in Cancer Patients and Their Fam…

Despite the increasing number of medical articles being published from the Middle East, clinical research is still lagging behind compared to other regions. Enrolling participants into clinical trials presents an important challenge. We wanted to explore the perception, knowledge, and willingness of cancer patients to participate in oncology clinical trials and to recommend strategies to overco…

Awareness of Risk Factors for Breast, Lung and Cervical Cancer in a UK Studen…

The objective of this study is to identify levels of risk awareness for breast, lung and ervical cancer, in a UK student population. A sample of male (N=62) and female (N=58) university tudents, mean age 21.62 years completed a questionnaire identifying which risk factors they knew for each cancer. Analysis of variance was used to compare differences in risk awareness across gender and cancer t…

Challenges in Measuring Benefit of Clinical Research Training Programs—the …

The American Society of Hematology developed the Clinical Research Training Institute (CRTI) to address the lack of training in patient-oriented research among hematologists. As the program continues, we need to consider metrics for measuring the benefits of such a training program. This article addresses the benefits of clinical research training programs. The fundamental and key components ar…

Comprehension of Randomization and Uncertainty in Cancer Clinical Trials Deci…

Comprehension of randomization is a vital, but understudied, component of informed consent to participate in cancer randomized clinical trials (RCTs). This study examines patient comprehension of the randomization process as well as sources of ongoing uncertainty that may inhibit a patient’s ability to provide informed consent to participate in RCTs. Cancer patients living in rural Appalachia…

Developing NaviCanPlan: A Mobile Web Resource Locator for Cancer Providers an…

As of January, 2012, an estimated 13.7 million persons are living as cancer survivors. This population is expected to grow to nearly 18 million by 2022. While their treatment may be considered successful, many cancer survivors experience long-term physical, emotional, and psychosocial late effects of treatment. Our focus was on community based cancer care—both rural and urban—as almost 90 %…

Differences in Electronic Cigarette Awareness, Use History, and Advertisement…

E-cigarette use has increased rapidly over the past decade. There is growing concern about e-cigarette use and advertising given limited regulation of these products. This cross-sectional study reports on data collected at baseline from hospitalized cigarette smokers (N=944) cruited in monthly cohorts between December 2012 and September 2013. Participants were queried regarding e-cigarette aw…

Effects of Patient Navigation on Patient Satisfaction Outcomes

Patient navigation (PN) may reduce cancer health disparities. Few studies have investigated the effects of PN on patient-reported satisfaction with care or assessed patients’satisfaction with naviGators. The objectives of this study are to test the effects of PN on patient satisfaction with cancer care,assess patients’ satisfaction with navigators, and examine the impact of barriers to care…

Evaluation of Project Students are Sun Safe (SASS): A University Student-Deli…

Skin cancer is the most common cancer in the USA and is increasing in children and young adults. Adolescents are an important target population for sun-safety interventions with ultraviolet radiation as the strongest risk factor for developing skin cancer. Schools are an ideal setting to intervene with adolescents. A novel Arizona skin cancer prevention inclass education-activity program, Proje…

Feasibility Study of Engaging Barbershops for Prostate Cancer Education in Ru…

The barbershop is a promising setting where African-American men might receive information and education about prostate cancer. In this study, we assessed the feasibility of engaging rural barbershops as venues for barbers to deliver a prostate cancer education intervention to increase informed decision-making for prostate cancer screening among customers. Twelve barbershops were recruited fro…

Innovative and Community-Guided Evaluation and Dissemination of a Prostate Ca…

African Americans (AA) are more likely to develop and die from cancer than any other racial or ethnic group. The aims of this research were to (1) evaluate current education materials being implemented in a community-based prostate cancer education program for AA communities, (2) refine materials based on findings from aim 1, (3) share updated materials with participants from aim 1 for additio…

Older Adult Health in Alabama’s Black Belt Region

Health issues are a concern in Alabama’s Black Belt region, which runs across the southwestern part of the state and includes some of the poorest counties in the USA. As part of a Center for Disease Control (CDC)-sponsored study, we collected data covering several cancer (e.g., prostate, breast, skin) and other health-related indicators (e.g., stress,insurance, stroke, heart isease) from 647…

Preclinical Medical Student Hematology/Oncology Education Environment

To better prepare medical students to care for patients in today’s changing health-care environment as they transition to continuing their education as residents, many US medical schools have been reviewing and modifying their curricula and are considering integration of newer adult learning techniques, including team-based learning, flipped classrooms, and other active learning approaches (A…

Public Awareness of Direct-to-Consumer Genetic Tests: Findings from the 2013 …

Although the availability of direct-to-consumer (DTC) genetic testing has increased in recent years, the general public’s awareness of this testing is not well understood. This study examined levels of public awareness of DTC genetic testing, sources of information about testing, and psy-chosocial factors associated with awareness of testing in the USA. Data were obtained from the nationally …

Student Accomplishments in the Rapid Response Radiotherapy Program: A 10-Year…

In 1996, the Toronto Sunnybrook Regional Cancer Centre developed the Rapid Response Radiotherapy Program (RRRP). The objective of this clinic is to consult, simulate, plan, and treat patients with palliative radiotherapy on the same day. In 2004, the RRRP initiated a program to provide clinical and research experience to undergraduate students interested in health sciences. The purpose of this…

Text Messaging as a Method for Health Ministry Leaders to Disseminate Cancer …

Mobile phone-based interventions can play a significant hole in decreasing health disparities by enhancing population and individual health. The purpose of this study was to explore health ministry leaders (HMLs) and congregation members’ communication technology usage and to assess the acceptability of mobile technology for delivery of cancer information. Six focus groups were conducted in …

The Development of a Communication Tool to Facilitate the Cancer Trial Recrui…

Edisi

(2015) 30:792–798

ISBN/ISSN

DOI 10.1007/s13187-0

Deskripsi Fisik

J Canc Educ (2015) 30:792–798

Judul Seri

Cancer education

No. Panggil

-

Wind-driven stand-alone six-phase self-excited induction generator transients…

This paper present the transient performance of an isolated six-phase self-excited induction generator (SPSEIG) driven by a fixed-pitch wind turbine. The approach is based on a wind-turbine model, SPSEIG model and detailed transient behaviour of an SPSEIG for stand-alone power generation, when subjected to sudden switching of balanced/unbalanced R, RL and RLC load for both threephase winding se…

Wind turbine gearbox fault diagnosis based on symmetrical components and freq…

The region of Adrar in Algeria is the windiest in the country; it is for this reason the lectricity and gas company “Sonelgaz” has placed a wind farm of about 10MW.Since it is a Saharan region, the wind is sandy, rich in silica that can damage the teeth of wind gearbox. The present work proposes a method which can make an early diagnosis of the broken tooth and its location in the gearbox, …

Short-term climate change manipulation effects do not scale up to long-term l…

1. Despite time-lags and nonlinearity in ecological processes, the majority of our knowledge about ecosystem responses to long-term changes in climate originates from relatively short-term experiments. 2. We utilized the longest ongoing snow removal experiment in the world and an additional set of new plots at the same location in northern Sweden to simultaneously measure the effects of lo…

The significance of frequency-dependent overhead lines for the calculation of…

In this paper the short-circuit current of overhead transmission lines is analyzed at a short circuit in an HVDC transmission network. The analysis focuses solely on the current contribution of the transmission line at a line-to-earth or a line-to-line short circuit. In this context it is shown which impedance is effective at the corresponding fault case. Special attention is given to the frequ…

Bolstered physical defences under nutrient-enriched conditions may facilitate…

1. Humans have a long history of changing species’ ranges and habitat distributions, making studies of the ecological processes that may facilitate these changes of key importance, particularly in cases where a primary foundation species is replaced by another, less desirable species. 2. We investigated the impact of nutrients and herbivory on Turbinaria ornata, a secondary foundational …

VSC-HVDC system optimized PI controllers using bacterial foraging algorithm

The strategy of control for high-voltage direct current system on voltage-source converter HSC-HVDC is based on an important element which is PI controller. Because of its simple structure and strong robustness in a wide range of serving conditions, it has been used in the control system in the last few years. Therefore, it is important for the VSC-HVDC system permanent regime to choose proper …

The implementation of capital budgeting analysis for distributed generation a…

For the last 7 years, the Republic of Croatiahas been witnessing a sudden increase of distributed en Argyresources connecting to its power system. However, a significant problem is how to find the financial equilibrium whichwill satisfy the independent power producers on one side and the Distribution system operator on the other. In this paper, the authors discuss the capital budgeting analysis…

Self-resonant frequencies of air-core single-layer solenoid coils calculated …

Single-layer air-core solenoid coils are importantcomponents in many fields of electrical engineering, such as, high- frequency applications, air-core transformers, inductive sensor sand wirelesspower transfer.The calculationo fits self-resonant frequencies is of primary interest in many different situations. In these components, the validity of lumpe delement model Discritical,since even for r…

Reactive power and voltage control in grid-connected wind farms: an online o…

This paper presents the application of an online optimization based fast model predictive control scheme to grid-connected wind farms for reactive power and voltage control. A linear prediction model of the network was used to predict the behavior of the system for a certain prediction horizon, while a modified quadratic programming problem was used for the optimization process. The proposed co…

Power transfer capability enhancement with multitype FACTS controllers using …

In this paper, a new hybrid particle swarm optimization (HPSO) based on particle swarm optimization (PSO), evolutionary programming (EP), tabu search (TS), and simulated annealing (SA) is proposed. The aim of merging is to determine the optimal allocation of multi-type flexible AC transmission system (FACTS) controllers for simultaneously maximizing the power transfer capability of power transa…

Phase shift of the current under a single-phase short-circuit in the stator w…

An equivalent model of a faulty turbogenerator under a single-phase short-circuit in the stator winding is presented. The model is based on modified voltage–current equations for the positive-sequence component of the shortcircuit current that takes into account the mutual spatial displacement of particular part of the faulty stator winding, the rotor magnetic asymmetry and the impact of the…

Particle swarm optimization of an extended Kalman filter for speed and rotor …

A novel method based on a combination of the extended Kalman filter with particle swarm optimization (PSO) to estimate the speed and rotor flux of an induction motor drive is presented. The proposed method will be performed in two steps. As a first step, the covariance matrices of state noise and measurement noise will be optimized in an off-line manner by the PSO algorithm. As a second step, t…

Numerical analysis of local hot-spot temperatures in transformer windings by …

This paper deals with the thermal characteristics of traditional mineral oil and alternative dielectric fluids. Candidates of alternative dielectric fluids used in the transformer were silicon oil, HMWH, synthetic ester and natural ester. In this study, the transformer which uses synthetic ester and natural ester was focused. 3 ph, 66 kV, 16.5 MVA power transformer and 3 ph, 22 kV, 2.3 MVA dist…

Multi-tank resonant topologies as key design factors for reliability improvem…

To improve electrical properties of power converters suited for power energy systems, the paper deals with investigation of novel multi-tank resonant topologies. First, standard LLC converter is analyzed, as well as mathematical model during operation intervals is developed. After it, modifications of LLC converter for better dynamic behavior during start-up and short-circuit operation are desc…

Mixed resistive unbalance and winding inter-turn faults model of permanent ma…

This work analyzes the behavior of surfacemounted permanent magnet synchronous motors (SPMSMs) operating under stator faults. The studied faults are resistive unbalance and winding inter-turn short circuits, which may lead to unbalanced conditions of the motor. Both faults may reduce motor efficiency and performance and produce premature ageing. Thiswork develops an analytical model of the mot…

Implementation of PWM control strategy for torque ripples reduction in brushl…

The generated torque ripples from the BLDC motor is the main issue that affects the drive performance of the BLDC drive system. In this paper, a new switching technique to minimize the torque ripples due to current commutation is proposed. The presented scheme has been implemented using a commercial and low-cost mid-range PIC microcontroller to generate the modified pulse width modulation (PWM)…

Implementation of digital FCS-MP controller for a three-phase inverter

Edisi

(2015) 97:25–34

ISBN/ISSN

DOI 10.1007/s00202-0

Deskripsi Fisik

Electr Eng (2015) 97:25–34

Judul Seri

ELECTRICAL ENGINEERING

No. Panggil

-

Generalized predictive control robust for position control of induction motor…

This paper presents the study and implementation of a different field-oriented control strategy using a generalized predictive control (GPC) technique applied to the mechanic position loop aiming to obtain a system that acts in the fractional horsepower motor driver running at near zero frequency. The position and speed loops were identified to verify the system behavior and, from the model fou…

High performance DTC of induction motor drives over a wide speed range

This paper presents an effective scheme to minimize the torque ripples for direct torque control (DTC) of induction motor drives. The switching strategy compares the torque error from a PI torque controller with two triangular waveforms, and then produces a constant switching frequency, which is determined by the frequency of the triangular waveforms and is almost independent of the speed. The …

Estimating stray current interference from DC traction lines on buried pipeli…

The paper presents a non-deterministic approach to the study of stray current effects generated by direct current railway or tramway lines on buried pipelines which are located in the nearby area. The potential shift induced (via conductive coupling) on the latter ones by the stray current dispersed in the soil is evaluated by means of a suitable equivalent circuit combined with a Monte Carlo p…