Miracle-dz/UniFAR-FTUs huggingface dataset:
Detecting Actions of Fruit Flies

In this thesis we describe a system that tracks fruit flies in video and automatically detects and classifies their actions. We introduce Caltech Fly-vs-Fly Interactions, a new dataset that contains hours of video showing pairs of fruit flies engaging in social interactions, and is published with complete expert annotations and articulated pose trajectory features. We compare experimentally the value of a frame-level feature representation with the more elaborate notion of bout features that capture the structure within actions. Similarly, we compare a simple sliding window classifier architecture with a more sophisticated structured output architecture, and find that window based detectors outperform the much slower structured counterparts, and approach human performance. In addition we test the top performing detector on the CRIM13 mouse dataset, finding that it matches the performance of the best published method.
A power-equalized harmonic-elimination scheme for utility-connected cascaded H-bridge multilevel converters

Although fundamental frequency switching has been the preferred method for high-power medium-voltage multilevel converters, the technology of current generation power semiconductors has made it possible to use higher rates. In utility-connected applications, where a restricted modulation index range is usually sufficient, a main requirement is for very tight control over individual harmonics. For these reasons, this paper considers the application of selective harmonic elimination PWM (SHEPWM) with 5- or 7-level converters switching at low multiples of the fundamental frequency. An alternative approach for the calculation of multiple solutions of the firing angles is outlined, and is then applied in a modulation scheme that inherently equalizes the power flow from and to the individual DC energy sources. Results from computer simulations for a 7-level energy conversion system are presented in this paper.
Stochastic Analysis of the RT-PCR Process in Single-Cell RNA-Seq

The single-cell RNA-seq allows exploring the transcriptome for one cell at a time. By doing so, cellular regulation is pictured. One limitation is the dropout events phenomenon, where a gene is observed at a low or moderate expression level in one cell but not detected in another. Dropouts obscure legitimate biological heterogeneity leading to the description of a small fraction of the meaningful relations. We used a stochastic approach to model the Reverse Transcription Polymerase Chain Reaction (RT-PCR) kinetic, in which we contemplated the temperature profile, RT-PCR duration, and reaction rates. By studying the underlying biochemical processes of RT-PCR, using a computational and analytical framework, we show a minimal amount of RNA to avoid dropout events. We further use this fact to characterize the limits in the dispersion reduction. Dispersion asymptotically decreases as the RNA initial value increases. Despite always being a basal dispersion, their decreasing speed is modulated mainly by the degradation rates, particularly for the RNA. We concluded that the critical step into the RT-PCR is the RT phase due to the fragile nature of the RNA. We propose that limiting RNA degradation might ensure that the portraited transcriptional landscape is unbiased by technical error.
Anti-oxidative activity of Cassia L. species of Southern India

Please cite this article as: Veerachari U et al., Anti-oxidative activity of Cassia L. species of Southern India. American Journal of PharmTech Research 2019. Anti-oxidative activity of Cassia L. species of Southern India Usha Veerachari*, Bopaiah AK, Senthilkumar U, Jyothi SG, Somashekariah BV, Ravikanth G. 1.Department of Life Sciences, Jain University, Bengaluru-560027, India. 2.Department of Botany, St. Joseph’s College PG and Research Centre, Bengaluru560027, India. 3.Ashoka Trust for Research in Ecology and the Environment, Srirampura, Jakkur Post, Bengaluru-560064, India. 4.School of Ecology and Conservation, University of Agricultural Sciences, GKVK, Bengaluru560065, India. 5. Department of Biochemistry, BMS College for Women, Bengaluru-560004, India. ABSTRACT To establish a comparative account within the taxa by assessing its anti-oxidative property and mapping it with the morphometric characters. The methanolic leaf extracts of 12 Cassia L. species were screened for their antioxidant activity using 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging assay and reducing power capability with reference to standard Ascorbic acid. Chamaecrista kleinii exhibited strong antioxidant activity with IC50 2.17 μg mL, followed with Senna auriculata (IC50 11.51 μg mL ) and Senna polyphylla (15.17 μg mL). Highest reducing ability was observed in Senna auriculata extract with 0.676 nm absorbance. The correlation observed between the reducing power and DPPH radical scavenging assay supports the contribution of the phytoconstitutents like phenolics and flavonoids towards managing oxidative stress. The present study reveals the beneficiary effects of the selected plants by virtue of their antioxidant activity that can be harnessed in drug formulations.
Water Reuse in Europe - Relevant guidelines, needs for and barriers to innovation

Following the identification of the need to find innovative solutions to water challenges in the urban, industrial and agriculture contexts, an EU regulatory instrument for water reuse has to be developed by 2015. Despite the water reuse applications already developed in many countries, there are still a number of barriers which prevent the widespread implementation of water reuse around Europe and on a global scale. These barriers will have to be overcome. The scope of this JRC Science and Policy Report is to analyse the technical, environmental and socioeconomic challenges of related to water reuse as an innovation option. It presents and compares the most relevant national and international guidelines on water reuse, and evaluates existing water reuse standards in EU Member States. Furthermore, the report presents a risk-based management approach for wastewater reuse and identifies needs for technological and regulatory innovation as well as barriers to overcome. WATER REUSE IN EUROPE 05/12/2014 Page III of 49 Table of
A STUDY OF HUMAN SKILL ACHIEVEMENT IN MALAYSIAN PUBLIC UNIVERSITIES: KNOWLEDGE, SKILL AND ATTITUDE

The principle of sustainable technical skill development is an integrated skill approach in the long terms by the instruments of science, technologies, economics and global considerations. The prospect of full implemented successfully needs a workforce which is equipped with sustainable development with related knowledge, skill and attitude (KSA). This study is related to the human skill achievement referred to the capability of technical staff in public universities. Purposely is to establish the procedures for the management and control of capital equipment. It also is to satisfy the requirements of the federal and state government and good business practices respecting control over the capital equipments. This study will be a significant endeavor for Human Resource Development (HRD) to measure the capability of human factors through KSA. The methodology of this descriptive study by searching the related topic literatures, white papers, technical papers, conference proceedings, and web-pages or even communicate to the personnel in selected public universities in Malaysia. The finding of this study will contribute to develop Overall Equipment Efficiency Model (OEEM) that could be measurable throughout to the technical skill performance among technicians in the engineering lab derived from KSA components. Therefore, human skill developments are the first competence bench marking in the capital equipment management in Malaysian public universities was identified.
Application of Soft Computing Models to Daily Average Temperature Analysis

Providing critical information about daily life, weather forecasting has important role for human being. Especially, temperature forecasting is rather important because it affects not only people but also other atmospheric parameters. Various techniques have been used for analysis of the dynamic behaviour of weather. This ranges from simple observation of weather to using computer technology. In this study, ANFIS (Adaptive Network Based Fuzzy Inference System), ANN (Artificial Neural Network) and MRA (Multiple Regression Analysis) have been applied for weather forecasting. To judge the forecasting capability of the proposed models, the graphical analysis and the indicators of the accuracy of Mean Absolute Deviation (MAD), Mean Square Error (MSE), Root-Mean Squared Error (RMSE), Mean Absolute Percent Error (MAPE), Determination Coefficient (R 2 ), Index of Agreement (IA), Fractional Variance (FV), Coefficient of Variation (CV, %) are given to describe models’ forecasting performance and the error. The results show that ANFIS exhibited best forecasting performance on weather forecasting compared to ANN and MRA.
Fixed frequency AC current controller for a three phases voltage source inverter

The performance of AC current supplies depends on the characteristic of the current control technique. Constant switching frequency, high dynamics and robustness are the main criteria for selecting current regulators. A linear controller allows obtaining constant switching frequency, which generates a well-defined harmonics spectrum. Nonlinear controllers are more robust and enable to obtain higher current dynamics, but are characterized by widely varying switching frequency. Used for a long time for current control of DC-DC converters, peak current controllers also allow imposing a constant switching frequency with fast dynamics of the current loop. However, they generate a static error. In this paper, we propose an adaptation of an AC current control method with constant switching frequency firstly developed for one phase AC current controller and applied for an AC three phases current controller. This controller is a hybrid controller using both sliding mode control and peak current control. The sliding mode controller generates robustness properties according to load parameter variations. The peak controller method ensures rapid dynamic response and a fixed switching frequency and is well adapted to the current tracking issues like harmonic filtering. In addition, its implementation is relatively simple. The principle of the AC current controller for a three-phase system is detailed. An average model of this controller is proposed, which takes into account fast reference variations. This model enables to determine the time response and the current overflow for given controller parameters. To explain the irregular current behavior, not foreseen by the average model, a mathematical analysis adapted from the chaos theory is done. Both simulations and experimental results are given to validate theoretical modeling.
JISC funded Kaptur project environmental assessment report

The overall objective of the JISC funded Kaptur project (October 2011 - March 2013) is to discover, create and pilot a sectoral model of best practice in the management of research data in the visual arts. This report outlines findings from the first workpackage, environmental assessment, based on the following research question: What is the nature of visual arts research data? Appendix A provides detail on the methodology; data was gathered from a literature review and 16 face-to-face interviews with visual arts researchers; four at each partner institution: Glasgow School of Art; Goldsmiths, University of London; University for the Creative Arts; and University of the Arts London.
The army special operations aircraft integrated avionics subsystem-an operational perspective

The authors focus on integration techniques utilized to enhance an operator interface and contain pilot workload within acceptable levels. The US Army MH-47E and MH-60K special operations aircraft (SOA) provide the capability to perform the Army's clandestine, deep-penetration missions in adverse weather, at night, over any terrain which the aircraft can traverse. The inherent complexity of this mission required an extensive avionics subsystem (IAS). The ultimate success of any integrated system hinges on the ability of the operators to access system capabilities and interpret system data in a timely fashion. Through the use of workload-reducing integration techniques, the IAS design has allowed capabilities to be successfully managed by a two-operator aircrew. <<ETX>>
Preliminary study of MoS 2 based saturable absorber used for crystal based mode locking laser system

Due to the extremely high pulse peak power produced by ultrafast laser and its potential applications for precious material processing and cutting e.g. sapphire wafer surface processing for mobile phone display technology, it has attracted great interests from the laser photonic industry. Apart from Semiconductor Saturable Absorber Mirror (SESAM), the carbon based materials e.g. carbon nano tube or graphene and graphene oxide materials have demonstrated mode locking successfully by using different types of gain materials with operational wavelengths at near 1 micron, 1.3 micron, 2 micron, confirming their wide operational waveband properties. These carbon based absorbers can be fabricated by some simple technique that can be used for mass production of the absorber e.g. dip coating, ultrasound, chemical process etc.
Good Human Engineering is Possible Using off-the-Shelf Component Products

More often than not, designers must use off-the-shelf components in creating a new equipment design. This is especially true when components relate to maintenance. Because much of this type of hardware is hidden from view, or is not considered part of the operating interface, components related to maintenance often are not selected with proper attention to human engineering considerations, either by the designer or the human engineer. Experience has shown that although many human engineering specialists specify general maintenance criteria, they do not follow through in selection of individual components that may be purchased off the shelf. This paper discusses typical design problems and recommends that human engineers take steps to keep up to date on new products, so that they will be in a better position to recommend those products which are better human-engineered.
High-speed download of seismographs using private cloud technology and a proportional integral derivative controller

ABSTRACT Seismic exploration is widely used in mining projects. A cable-free self-positioning seismograph has been developed by College of Instrumentation & Electrical Engineering of Jilin University that may collect and store seismic data wirelessly or by Ethernet. When large data sets are produced, data download may affect the schedule of a project. To improve the rate of transfer, a system that allows parallel download of multichannel seismic data is reported here. The system is based on private cloud technology and proportional integral derivative control. A private cloud was employed to provide suitable performance and availability. A proportional integral derivative control algorithm was developed for scheduling to maintain the load balance of the system. The system was employed in a seismic exploration project in Liaoning, China. The average download time of six lines was approximately 1.1 hours, demonstrating that the system reduced download time and enhanced exploration efficiency.
Spatial power combiners using active reflect-arrays and horn antennas

Novel configurations of power combiners using active reflect-arrays of transistor amplifiers with microstrip patch antennas at their input/output ports and either small or large horn antennas as power distributing/combining devices are proposed and investigated. In order to obtain reduced spacing for optimal power combining conditions, the transistors amplifiers in the active array use dual-feed aperture coupled microstrip patch antennas for reception and transmission. An X-band 137 element planar active reflect-array illuminated by a small horn antenna and radiating in boresight direction is presented as a design example. The obtained results show that in order to achieve efficient power combining the dual feed aperture-coupled patch antennas have to feature high isolation between their orthogonal ports. The design of such an antenna is shown.
Ship Motion Compensation Platform for High Payloads; Dynamic Analysis and Control

When a ship motion compensation system carries very high payloads, in the size order of the displacement of the ship, the load dynamics and ship dynamics influence each other. What are these dynamics and how can an actuation system counteract or even benefit from it. Foundations to answer these questions are laid with a selection of literature focusing on non linear model predictive control, time domain hydrodynamics and motion compensation or generation mechanisms primarily of parallel robotic platform type. Next a physical scale experiment in which a heavy hexapod with quasi-static control is placed a ship is investigated. The instability shown in the experiments shows the severity and justify the topic. A planar model is estimated that quantifies sources of instability and shows that there are configurations of system parameters that result in instable behavior. Finally a new conceptual 3 degree of freedom platform mechanism is developed, and for the first time in literature a 3D coupled parallel robotic platform ship dynamic simulation is derived. Two control techniques are applied, an unsophisticated quasi-static approach and a nonlinear model predictive control approach. Where for the latter real time capability with true online nonlinear optimization is achieved, which is also a first for this kind of systems. This model based approach outperforms the more naïve actuation scheme in stability and energy efficiency. Cover: Detail of Claude Monet, Tempête, côtes de Belle-Ile, 1886, oil on canvas, 65,4 x 81,5 cm, musée d’Orsay, Paris. Photo: musée d’Orsay Master of Science Thesis W.A. de Zeeuw
Position Synchronization of the Biaxial System with a PID Neural Networks Control

A new control algorithm based on incorporating proportion integration differentiation (PID) neural networks into cross-coupling technology is developed for position synchronization of biaxial system. The PID neural networks controller is be used to adjust control value injecting two velocity loops of the biaxial system.The learning algorithm of PID neural networks is demonstrate in theory. It is tested by simulation that the proposed control scheme can guarantee the stability and the effectiveness of the biaxial control system.The simulation results show that synchronization error is reduced to 35um from 56um.
Zero‐biased diode Schottky detector for low cost preamplified millimeter‐wave imaging

Development of a sensitive Schottky detector using zero‐biased diode (ZBD) for preamplified millimeter‐wave imaging is presented. Low noise amplifier gain and detector responsivity, key parameters to the imaging module, are analyzed to get the sensitivity performance characterization. The detector integrates one ZBD, stripline filtering and matching elements, and finline transition on a thin Rogers substract. Methodology used to detector design is described here, including the determination and optimization of the circuit geometrical and electrical parameters. A relatively good agreement between the simulations and the measurements has been found. At 92 GHz, linearity of 0.998 and detection responsivity of 4000 mV/mW dB are measured, respectively. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2690–2693, 2015
A robust approach for derivation of new class of closed‐form Green's functions for microstrip structures

Based upon three‐level approximation and the steepest descent path (SDP) method, we consider a robust approach for the derivation of a new class of closed‐form Green's functions for microstrip structures. Some numerical results are presented for the validation of the present method. It is observed that this method can provide a more accurate evaluation of the spatial Green's functions than the previous method, even without the advance investigation of the spectral functions, over a wide frequency range. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 43: 235–238, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20428
Aprendizado Profundo Aplicado na Previsão de Receita Tributária Utilizando Variáveis Endógenas

A previsão de receita tributária para a gestão de um estado em situação de crise econômico-financeira, caso do estado do Rio de Janeiro, tornou-se uma tarefa fundamental e desafiadora para as secretarias de fazenda e planejamento dos Estados, pois há incertezas econômicas e políticas que afetam a série temporal. Nesse sentido, este trabalho inicia o projeto de investigação e uso de modelos mais novos e acurados de Machine Learning, como Long Short-Term Memory (LSTM), para prever a receita de tributos. Os resultados apresentam erro relativo menor que 1%, para previsão do ICMS, indicando desempenho superior às previsões realizadas pela SEFAZ-RJ e aos modelos MLP, usados para efeitos de comparação.
The convergence theories and the manufactured industry in Portugal

The aim of this paper is to present a further contribution to the analysis of absolute convergence, associated with the neoclassical theory, of the manufactured industry productivity at regional level and for the periods from 1986 to 1994 and from 1995 to 1999. The main conclusions that should be noted is which the signs of convergence different between the several manufactured industries.
A design criterion to ZVT DC-DC PWM converters with constant auxiliary voltage source

This paper proposes a design criterion to calculate the resonant auxiliary elements of ZVT DC-DC PWM converters that use a DC auxiliary voltage source. The proposed criterion is based on stored energy in resonant auxiliary elements and takes into account the influence of the auxiliary voltage source value. By means of this criterion the reactive energy can be kept at a minimum level and a reduction of the auxiliary elements current ratings is achieved, which leads to lower conduction losses and improved converter efficiency. In addition, a reduction in auxiliary magnetic elements size can be accomplished. To illustrate the usefulness of the design criterion proposed, comparative results obtained from the true pulse-width modulated (PWM) zero-voltage switching (ZVS) pole boost converter designed by proposed criterion and its original design guidelines are presented. Experimental results show an efficiency gain of about 1% for a wide range and 1.5% at full load. In addition, a reduction of about 52% in the auxiliary transformer volume for the implemented prototype was achieved, ensuring a reduction in overall converter size. Experimental results were obtained from 1 kW, 100 kHz laboratory prototype.
Electrical Power Management for Distributed Automotive System

The electrical power management for distributed automotive system is proposed. The electrical power requirement is analyzed and the steady power source and electrical safe power source are independently proposed. Power supply channel with three-level current protection is designed to construct an electrical safe power supply which includes selective overload protection, fast short current protection and fuse backup protection. Prototype of electrical power management system is developed based on intelligent relay. The test result showed that the electrical management works well and the protection method is effective. Keywords-electrical power management; steady power source; electrical safe power source