Miracle-dz/UniFAR-FTUs huggingface dataset:
Determination of voltage stability limit in multimachine power systems

A method of determining the load limit and the critical state of a general multimachine power system is presented. In the method, the search for the load limit is formulated as an optimization problem. With this formulation, difficulties related to singularity of the load-flow-equations Jacobian matrix, and convergence of the load-flow solution around the voltage stability limit, are avoided. Modification to the basic formulation to allow consideration of load-voltage characteristics is also shown. A voltage stability margin is defined which may serve as a measure of the security of a given operating condition from voltage instability or collapse. Results of application of the proposed method to the AEP 14-bus network are presented. >
The acute effects of an unstable shoe on energy expenditure

Recently, the concept of constructing a rocker-bottom unstable shoe has become increasingly popular in the shoe industry. Proposed benefits based on this type of unstable shoe include increased lower extremity muscle activation and energy expenditure. Therefore, unstable shoes could be used to improve physical fitness, induce weight loss, and improve balance. Although several recent studies have examined the chronic physiological responses of wearing these shoes over long periods of time, few have investigated the changes occurring in the initial acclimation phase within the first hour of use. Purpose: The purpose of this study was to quantify energy expenditure of wearing an unstable shoe (US), as compared to control shoe (CS) or a participant's own athletic shoe matched to the mass of an US, during an initial acclimation period of 40 minutes. Methods: Thirty healthy volunteer participants (17 females, 13 males, age 21.77 ± 3.16 years, mass 67.27 ± 10.29 kg, stature 167.61 ± 7.85 cm), who had not previously worn any type of US, were recruited. Energy expenditure was measured via oxygen consumption (VO2) method of indirect calorimetry during steady-state. Resting energy expenditure (REE) was determined in static sitting. Following REE, participants were instructed to walk at a self-selected speed on a treadmill (3.30 ± 0.66 km·h−1). Steady-state energy expenditure for CS at time point 0 minute (CS 0’) was collected. Following CS 0’, US data was collected at time point 0’ (US 0’) which represented the first 5 minutes of the acclimation period. Steady-state energy expenditure was measured again during the last 5 minutes of the 40 minute acclimation period of wearing the US (US 40’). Subsequently, CS data at time point 40 minute (CS 40’) was measured. Results: A two-way analysis of variance (ANOVA) for repeated measures revealed no difference in energy expenditure from time point 0 minute to time point 40 minute within shoe conditions, and no time x shoe type interaction effects. However, there was a main effect of shoe type (F1,29 = 13.02, p = 0.001), with post-hoc tests showing US having increased energy expenditure at time 0 minute, but not at 40 minute. Conclusion: Findings suggest that within the first five minutes of wearing the US, energy expenditure is increased when compared to CS. However, by the end of the 40 minute acclimation period, no significant difference between shoes was found.
Factor Analysis of User`s Perceptions Regarding the Public Libraries Service Quality

ABSTRACT This study is a exploratory research to develop standard measur ement for service quality of public libraries through extracting common factors f or them. It suggests that service quality of public libraries can be divided into three primary dimensions interaction of personnel, library resources and programs, physical environm ent and facilities and each dimensions be several sub-dimensions. It also suggests a third-order factor mode for public libraries’ service quality based on the above dimensions and testifies it through exploratory factor analysis and confirmatory factor analysis. KEYWORDS Public Library - Service Quality Measurement, Service Quality Measurement Model - Public Library, Service Quality Dimensions - Public Library 1. 서 론 도서관이 현재 상태를 진단 및 평가하여 이용자에게 더 좋은 서비스를 제공하기 위해 서비스품질을 측정할 필요가 있다는 것은 이미 여러 연구를 통해 주장되고 있는 주지된 사실이다. 실제로 대학도서관 및 공공도서관 등을 대상으로 서비스품질을 측정한 연구와 이러한 기존의 연구들을 심층적으로 분석한 연구 역시 이미 다수 수행된 바 있다. 이러한 연구들은 서비스품질을 측정하고 이 서비스품질이 도서관 이용자의 이용행태나 만족도에 영향을 미친다는 사실을 공통적으로 밝히고 있으나, 서로 다른 서비스차원 및 요인으로 서비스품질을 측정하고 있다. 관종이 다르다면 측정차원 및 요인 역시 달라야 하겠지만, 같은 관종의 서비스품질을 측정하는 데도 서로 다른 차원 및 요인을 사용하고 있는 것이다. 따라서 도서관 서비스품질 측정에 대한 인식 및 연구가 어느 정도 확산되고 있는 시점에서 도서관에서 실제로 자관의 서비스품질을 측정할 경우 참조할 수 있는 표준화된 서비스품질척도를 개발할 필요가 있다. 이러한 관점에서 이 연구는 공공도서관의 서비스품질을 측정하는 표준화된 척도를 제안하기 위한 탐색적 연구로 수행되었다. 이를 위해 이 연구는 먼저 선행연구의 검토를 통해 도서관 서비스품질의 차원을 규정한 다음, 공공도서관에 적합한 각 차원을 구성하는 문항으로 구성된 설문지를 개발하여 대구지역 전 공공도서관을 대상으로 설문조사를 실시하였다. 이 설문조사 결과를 분석하여 이용자들이 공
RC: caveats not sufficiently discussed

This paper presents a set of sensitivity experiments using an ocean-only GCM forced with atmospheric boundary conditions from CCSM3 in a LGM configuration. The ocean model has a relatively high resolution (about 5 times greater than most CMIP5 models) and can be considered as eddy permitting. The authors perform a set of 5 simulations where freshwater is released from different locations that corresponds to potential region of glacial icebergs and meltwater discharges in the last ice age and deglaciation. All the sensitivity simulations are shorter than 20 years, and the focus is put on the pathway of the freshwater in the Atlantic Ocean, and its impact on the regions of oceanic deep convection. It is found that freshwater pathways are highly dependent on the release location, as was already highlighted in a few studies. The
Outcomes of Subtrochanteric Fractures; A Prospective Study Focusing on the Comparison of Open and Closed Surgical Technique

Objective: To review the outcome of surgery by looking at function, deformity and pain according to Harris Hip Score comparing two surgical procedures i.e. open technique and closed technique using relatively recently developed implants. Methodology: This comparative prospective study was conducted in the department of orthopaedic surgery PIMS Islamabad, from June 2013 to May 2015. By using purposive sampling patients aged 20-50 years with closed subtrochanteric fractures of less than 2 weeks duration were included in the study. The patients with open fractures, pathological fractures, multiple fractures/ poly trauma, and old and neglected fractures of more than 2 weeks were excluded. All included cases of subtrochanteric fractures were managed by either closed technique, using Proximal Femur nail (PFN) or open technique using a Proximal Femur anatomical locking plate (PFP). This comparative study was planned to determine union rates, complications & functional outcome of fixation of subtrochanteric fractures. Descriptive analysis was done using SPSS version 20. Chi-square test was applied for comparing qualitative variables.Results: A total of 100 cases were included in the study with the mean age was 38.5 ± 8.6 years in the open technique group () while 34.6 ± 1.2 years in closed technique (). There are 72 males and 28 females. Union occurred 84% in open technique and 96% in closed technique. In open technique group mean Harris hip score was 68.9 ±5.4 compared to 72.4 ± 6.2 in the closed technique group (p-value <0.001). In open technique group 6 (12.0%) cases had delayed union and 2 (4.0%) had non-union compared to 3 (6.0%) cases and 1 (2.0%) cases in closed technique group respectively.Conclusion: Outcome favours closed technique compared to open technique for subtrochanteric fractures fixation, when assessed on Harris hip Score. There was no statistically significant difference in the fracture union and frequency of complications between the two groups.
Time-resolved blood flow measurement in the in vivo mouse model by optical frequency domain imaging

In this study, we demonstrate that phase-resolved Doppler optical frequency domain imaging (OFDI) is very suitable to quantify the pulsatile blood flow within a vasodynamic measurement in the in vivo mouse model. For this, an OFDI-system with a read-out rate of 20 kHz and a center wavelength of 1320 nm has been used to image the time-resolved murine blood flow in 300 μμm vessels. Because OFDI is less sensitive to fringe washout due to axial sample motion, it is applied to analyze the blood flow velocities and the vascular dynamics in six-week-old C57BL/6 mice compared to one of the LDLR knockout strain kept under sedentary conditions or with access to voluntary wheel running. We have shown that the systolic as well as the diastolic phase of the pulsatile arterial blood flow can be well identified at each vasodynamic state. Furthermore, the changes of the flow velocities after vasoconstriction and -dilation were presented and interpreted in the entire physiological context. With this, the combined measurement of time-resolved blood flow and vessel diameter provides the basis to analyze the vascular function and its influence on the blood flow of small arteries of different mouse strains in response to different life styles.
Radio frequency dc-dc power conversion

T HIS THESIS addresses the development of system architectures and circuit topologies for dc-dc power conversion at very high frequencies. The systems architectures that are developed are structured to overcome limitations associated with conventional designs. In particular, the new architectures described here structure the energy processing and control functions of the system in such a manner that high efficiency can be achieved across wide load range while regulating the output. Moreover, these architectures are amenable to circuit designs operating at fixed frequency and duty ratio, considerable easing the circuit design. The thesis also develops new circuit designs that are well suited to these new architectures. As part of this, two new gate drives and control methods are introduced that greatly reduce gating loss at VHF frequencies for fixed frequency, fixed duty ratio operation. One of these gating schemes provides near theoretical minimum loss by resonantly wave shaping the gate voltage to have a trapezoidal drive voltage. This waveshaping approach is then taken a step further, yielding a new class of dc-dc converter that archives a significant reduction in peak switch voltage stress, requires small passive components with low energy storage, and provides the capability for extremely rapid startup and shutdown. This new class of converter is well adapted to the architectures and gate drive methods proposed in the thesis. It is expected that the new architectures and circuit designs introduced here will contribute to the development of power converter having greatly reduced size and improved transient performance. Thesis Supervisor: David J. Perreault Title: Emanuel E. Landsman Associate Professor
Seismic Retrofit of Steel Moment-Resisting Frames with High-Performance Fiber-Reinforced Concrete Infill Panels: Large-Scale Hybrid Simulation Experiments

AbstractRecent earthquakes around the world have demonstrated that steel moment-frame buildings designed based on older seismic provisions are seismically deficient. To enhance the seismic performance of these buildings, a new seismic retrofit system has been developed and evaluated experimentally as part of a two-story steel moment-resisting frame, designed in California in the 1980s. The proposed retrofit system consists of high-performance fiber-reinforced concrete (HPFRC) infill panels acting as energy dissipation elements that can be easily replaced after a major earthquake. Through two large-scale hybrid simulation tests of the retrofitted two-story steel moment-resisting frame, it is demonstrated that (1) the proposed retrofit system is effective in terms of reducing the maximum story drift ratios and residual deformations of the retrofitted steel moment resisting frame relative to the predicted bare frame performance, and (2) the structural damage of the retrofitted steel moment-resisting frame is.
Chimeric antigen receptor (CAR) T-cell therapy as a treatment option for patients with B-cell lymphomas: perspectives on the therapeutic potential of Axicabtagene ciloleucel

Abstract Axicabtagene lisoleucel (Axi-cel) is the second approved gene-alterating cancer treatment and the first in aggressive lymphoma using the “chimeric antigen receptor” (CAR) technology. T-cells from patients were transfected with CARs and reinfused after a lymphodepleting chemotherapy. CAR T-cells are “living drugs” with the ability to persist and expand after a single infusion. Axi-cel is a “second generation” CAR product characterized by the use of a retroviral gene vector transfer and by CD28 as costimulatory domain. In a phase II trial with heavily pretreated patients with aggressive B-cell lymphoma, the overall response rate was 82% with an ongoing complete response rate of 40% after 6 months – with expectations of long-term remissions and cure, even though follow-up data are still limited. There are some prominent side effects like cytokine release syndrome (Grade 3–5: 13%) and neurotoxicity (Grade 3–5: 28%). Novel strategies for prediction, prevention and treatment of these critical side effects are warranted. There are new concepts to enhance the efficacy and prevent resistance in lymphomas. CAR T-cells represent an extremely evolving field with an inestimable potential in general and particularly in aggressive lymphoma. However, we are still learning how to use Axi-cel and other CAR-T cells compounds effectively to optimize the long-term results.
Towards Accessibility and Inclusion of Native Mobile Applications Available for Ecuador in Google Play Store

This article aims to evaluate the level of compliance with the accessibility requirements of the most popular native Android mobile applications, for which a sample of 50 Google Play Store applications available in Ecuador was taken. A five-phase method using the Accessibility Scanner tool was used to evaluate the apps. The results revealed that 47.5% are related to problems with tactile orientation, followed by the labeling of elements with 28.2%, and text contrast with 9.2%. The highest number of barriers found in the evaluation of mobile applications corresponds to the principle of operability with 53.9%. This study reveals that, although social networks are widely used, they have 28.7% of accessibility problems. Basing accessibility analysis exclusively on an automatic tool is very limited since it neither detects all errors nor are the errors they detect accurate. However, we suggest complementing the automatic review evaluations with a manual method based on heuristics to ensure an adequate level of accessibility in mobile apps. In addition, we recommend using this study as a starting point to create a software tool using WCAG 2.1 based on artificial intelligence algorithms to help developers evaluate accessibility in mobile apps.
Isotopic analysis to quantify the role of the Indian monsoon on water resources of selected river basins in the Himalayas

Western disturbances (WDs) and Indian summer monsoon (ISM) led precipitation play a central role in the Himalayan water budget. Estimating their contributions to water resource is although a challenging but essential for hydrologic understanding and effective water resource management. In this study, we used stable water isotope data of precipitation and surface waters to estimate the contribution of ISM and WDs to the water resources in three mountainous river basins ‐ Indus, Bhagirathi and Teesta river basins of western, central and Eastern Himalayas. The study reveals distinct seasonality in isotope characteristics of precipitation and surface waters in each river basin is due to changes in moisture source, hydrometeorology and relief. Despite steady spatial variance in the slope and intercept of regression lines from the Teesta to Indus and the Bhagirathi river basins, the slope and intercept are close to the global meteoric water line and reported local meteoric water line of other regions in the Himalayas and the Tibetan Plateau. The two‐component end‐member mixing method using d‐excess as tracer were used to estimate the contribution from ISM and WD led precipitation to surface water in aforementioned river basins. The results suggest that the influence of the ISM on the water resources is high (>72% to annual river flow) in Teesta river basin (eastern Himalayas), while as the WDs led precipitation is dominantly contributing (>70% average annual river flow) to the surface waters in the Indus river basin (western Himalayas). The contribution of ISM and WD led precipitation in Bhagirathi river basin is 60% and 40%, respectively. The findings demonstrate that the unusual changes in the ISM and WD moisture dynamics have the potential to affect the economy and food security of the region, which is dependent on the availability of water resources. The obtained results are of assistance to policy makers/mangers to make use of the information for better understanding hydrologic response amid unusual behaviour of the dual monsoon system over the region.
Calculation of Greenhouse Gas Emissions for Highway Construction Operations by Using a Hybrid Life-Cycle Assessment Approach: Case Study for Pavement Operations

Large quantities of greenhouse gases (GHG) are emitted in producing and acquiring materials for the construction, maintenance, and rehabilitation of highway infrastructure. The objective of this paper is to develop and illustrate a method that can be applied by state agencies to quantify the life-cycle emissions associated with different pavement designs. It applies existing life-cycle assessment (LCA) methods that integrate process-level construction data. The research emphasizes the construction phase and contributes a method that can be used to develop and analyze construction phase life-cycle inventories. It describes on-site collection of material and equipment usage data during construction and rehabilitation operations. Departing from traditional approaches that tend to use LCA as a way to compare alternative pavement materials or designs on the basis of estimated inventories, this paper proposes a shift to a context-sensitive process-based approach that uses actual observed construction data to ca.
Three-dimensional linear and angular kinematics of a spinning cricket ball

The purpose of this study was to analyse the performance outcomes of spin bowlers by using a motion analysis procedure to measure the linear and angular kinematics of a spinning ball. A three-dimensional (3D) Cortex motion analysis system was used to track three markers strategically placed on the ball spinning in flight. Data were further processed using 3D vector kinematics to calculate the ball's linear speed, spin rate and direction of the angular velocity vector. Thirty-four district-level spin bowlers, including both finger-spinners and wrist-spinners, were recruited to bowl 20 standard deliveries, and 5 deliveries of any variation in their repertoire. The results show that spin bowlers can produce various combinations of spin rate and angular velocity vector orientations to implement substantially different methods of utilising both swerve and turn off the pitch to deceive the batsman. In particular, it was found that wrist-spin bowlers could potentially swerve the ball either towards the left or right of the batsman. In addition, the ball's angular velocity vector can be displayed during the live capture, which is able to demonstrate spin-bowling performance in the laboratory.
Simulation of the data transmission for an ROV

The aim of the work described in this paper is to model an ultrasonic data communications link between a base station and a remotely operated vehicle (ROV), named Pipe Rover, inside a water filled pipe. Due to the complex interaction between the ROV and the environmental components, an emphasis is placed on the simulation of the acoustic channel. The authors present results derived from the mathematical modeling of the pipe system and its inter-relationship with the sensor beam patterns.
The Effect of Psychological Capital on Organizational Crisis Management: A survey study of the views of a sample of the Administrative leadership of the Ministry of Sports and Youth

The research aims to identify the impact of psychological capital and its reflection in the management of organizational crises in the Office of the Ministry of Youth and Sports. Psychological capital as an independent variable with four important dimensions (self-efficacy, hope, flexibility, optimism) in addition to three dimensions representing the adopted variable organizational crisis management (speed of response decision, communication and information flow, mobilization and resource mobilization) and formed a sample To search (203) Director (Section, Division, Unit) and distributed them included a questionnaire (32), paragraph, In light of this, data were collected and analyzed and hypotheses were tested using SPSS using a number of statistical methods including arithmetic mean, standard deviation, coefficient of variation, coefficient of determination and variance test. The research concluded that psychological capital contributes significantly to the development of further developments and support for the development of creative capabilities of the ability to make decisions and solve problems and avoid crises and properly manage them, and enhance communication and risk-taking, and the ability to change as well as encourage creativity. The research recommends investing the impact of psychological capital in crisis management and in order to enhance the ministry's adoption of values, ideas and goals in order to consolidate the voluntary behaviors represented by personal relations and dedication to work.
A model for measuring organizational agility in Iran television manufacturing industry: a fuzzy logic framework

Agility is the set of capabilities and competencies that an organization needs to thrive and prosper in a continuously changing and unpredictable business environment. This paper, based upon our studies in Iran's Television Manufacturing Industry, presents a model for organizational agility and then suggests a knowledge-based methodology for measuring agility. For being agile, every organization needs a number of capabilities (e.g. responsiveness and flexibility) and competencies (e.g., knowledge management), these capabilities and competencies are broken into some dimensions and finally the resulting dimensions to some indices. For measuring agility we use "IF {Fuzzy antecedents} THEN {Fuzzy consequent}" rules. This system uses expert knowledge and includes implementation of fuzzy logic methods and terminology.
Arterial Blood Supply and Angiography of the Fore Foot in One- Humped Camel (Camelus dromederius)

The present study was conducted on eight fresh forelimbs to investigate a detailed anatomical description of the arterial blood supply in adult dromedary camel’s foot. Anatomical and angiographic techniques were used in order to give detailed data about the origin and pattern of distribution of these arteries. Moreover, this data serve other researchers in comparison with different animals. The specimens injected with red colored gum milk latex for anatomical dissection and urograffin injection for angiographic purposes throughout the median artery. The main arterial blood supply of camel’s digit was derived from common palmar digital artery, palmar metacarpal artery, in addition to smaller branches detached from the dorsal metacarpal artery.