Monitoring cattle feed intake is crucial for evaluating animal health, productivity, and farm profitability. In particular, an abnormal related to the activity. Therefore, outlier detection forms basis monitoring. This study employed multiple algorithms ranging from statistics deep learning detect outliers in time-series data of intake. We used five models implementing mean + standard deviation, moving average, box plot, time series decomposition, autoencoder, attempted enhance performance...

A new indoor three‐dimensional (3D) positioning system is proposed based on visible light emitting diode (LED), and implemented using a location code spatial distribution map. Location codes are allocated to each LED as they transmitted sequentially the user or object with an optical sensor. Three LEDs form triangular wireless zone, intensities of received unique at all reference points. After coordinates points, their map implemented. The 3D position then obtained algorithm code. error for...

We conducted an initial feasibility study using real-time magneto-motive optical Doppler tomography (MM-ODT) with enhanced contrast to investigate the detection of superparamagnetic iron oxide (SPIO) magnetic nanoparticles implanted into in vivo melanoma tissue. The MM-ODT signals were detected owing phase shift nanoparticles, which occurred due action applied field. An amplifier circuit-based solenoid was utilized for generating high-intensity oscillating fields. system confirmed as...

Abstract In this paper, we describe a fixed‐beam broadband planar antenna array at millimeter‐wave frequencies. The is fed by waveguide‐feed and microstrip‐feed networks. order to ensure fixed beams broad bandwidth, subarray concept introduced. For efficient coupling, novel waveguide‐to‐slot transition consisting of slot pair narrow conductive bar proposed. Simulated measured bandwidth found be more than 7.1% from 40.5–43.5 GHz. main beam directions are broadside over all maximum gain 30.2...

The effects of rapid thermal annealing (RTA) on Schottky barrier diodes (SBDs) made from oxygenated aluminum nitride (AlN) thin films deposited a silicon carbide (SiC) substrate using radio frequency sputtering were investigated. annealed SBD devices exhibited 10x increase in the on/off current ratio vs. non-annealed for measurement temperatures ranging 300 K to 450 K. ideality factor, derived density–voltage (J-V) characterization, increased by factor ~2.2 after annealing, whereas height...

It is shown in this work that annealing of Schottky barrier diodes (SBDs) the form Ni/AlN/SiC heterojunction devices an atmosphere nitrogen and oxygen leads to a significant improvement electrical properties structures. Compared non-annealed device, on/off ratio annealed SBD increased by approximately 100 times. The ideality factor, derived from current-voltage (IV) characterization, decreased factor ~5.1 after annealing, whereas height ~0.52 0.71 eV. bonding structure AlN layer was...

Abstract A reliable electricity supply infrastructure is fundamental to modern living. An interruption services has such far reaching impact our everyday lives various industries compared other service interruptions, thus build in significant redundancy and preventive measures electric power system operation planning needed. Just as important incorporate however, an effective restoration plan needs be place since the possibility of cannot eliminated completely. In this paper, a novel that...

In this paper, we suggest the operation, market structure, and regulation strategies with distributed generation (DG), demand response (DR), smart grid (SM) in Korean power distribution system. The strategic business unit (SBU) Korea Electric Power Corporation (KEPCO) was introduced as an alternative strategy because of interruptions steps separation sector. SBU is a system which retains responsibility for its own costs through self-regulation by each unit, thus providing incentives...

In this study, static induction transistors (SITs) with beta gallium oxide (β-Ga2O3) channels are grown on a p-epi silicon carbide (SiC) layer via radio frequency sputtering. The Ga2O3 films subjected to UV/ozone treatment, which results in reduced oxygen vacancies the X-ray photoelectron spectroscopy data, lower surface roughness (3.51 nm) and resistivity (319 Ω·cm), higher mobility (4.01 cm2V−1s−1). gate leakage current is as low 1.0 × 10−11 A at VGS = 10 V by depletion formed between...

In this paper, we develop a Web-based distributed power flow simulator (WDPFS) for distribution system undergoing conversion to strategic business unit (SBU) operation the division of sectors in South Korea. SBU, algorithm should be changed as is divided so that each sector then needs its own operational system. These functions can obtained by SBU with generations and easily exchanged boundary layer values among systems. Also, proposed only solves active power, reactive, voltage, angle using...

We have demonstrated a novel scheme of reflective semiconductor optical amplifier (RSOA) based bidirectional gigabit WDM-PON using suppressed carrier (SOC) and polarization beam splitter (PBS). While LiNbO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Mach-Zehnder modulator (LN-MZM) located at the central office (CO) generate 4 GHz SOC as seed light for uplink transmission, RSOA CO modulate downlink data. At network units (ONU),...

최근 데이터셋의 효율적인 구축 방법으로 생성적 적대 신경망(Generative Adversarial Network:GAN) 기법을 활용하는 연구가 다양하게 이루어지고 있다. 이 중 신경망 구조를 기반으로 한 DCGAN(Deep Convolutional Generative Network)을 활용한 데이터 증강 방법에서는 해당 신경망을 학습할 때 환경 및 학습의 수행 경과에 따라서 생성된 영상에서 화질 열화 문제가 발생하는 경우가 있었다. 이러한 영상은 데이터셋으로 활용했을 모델의 정확도가 오히려 떨어지는 결과를 초래할 수 있기에 활용 가치는 매우 떨어진다. 본 논문에서는 DCGAN 학습 과정에서 생성되는 영상 데이터를 딥러닝 기반의 초해상도 생성 알고리즘을 적용하여 문제를 개선하였으며, 기존 단순 보간법을 이용한 개선 방법 대비 약 21% 향상된 개선율을 보였다.

There has been significant research focused on the development of stretchable materials that can provide a large area with minimal material usage for use in solar cells and displays. However, most exhibit perpendicular shrinkage when stretched, which is particularly problematic polymer-based substrates commonly used devices. To address this issue, biaxial strain-controlled have proposed as solution to increase device efficiency conserve resources. In study, we present design fabrication...

최근 차량 및 항공산업의 발달에 따라 경량화를 통한 연료 소비 배기가스 배출량 감소에 관한 관심이 높아지고 있다. 탄소섬유 복합재(CFRP: carbon fiber reinforced plastics)는 고강도 경량 소재로 항공산업에 활용되고 있으나, 차체 기체 일부에만 적용되고 있는 실정으로, 철강 소재와 CFRP의 체결을 위해 드릴링 가공이 주로 이루어지고 CFRP는 가공 시 가공물 미절삭, 박리현상, 섬유 분리등의 가공결함이 발생하는 난삭재로 이러한 가공결함을 줄이기 위한 가공조건 최적화에 연구가 필요하다. 본 연구에서는 CFRP 다구찌 기법(Taguchi method)을 사용하여 절삭력 가공품질에 따른 주요 인자를 분석하고 최적 가공조건을 선정하였다.

In this paper, we propose a method to classify K-pop dance based on motion data obtained from Kinect V2 for research of classification and development anti-plagiarism system. To do this, 200-point dances are acquired. Dance motions 40 amateur dancers acquired construct total 400 data. The proposed consists three steps. First, obtain 13 significant angles that represent well in each frame, perform preprocessing process, four statistical every 30 frame angle, connect them together generate...

Seed colloidal core particles (CCPs) were prepared by surfactant‐free emulsion polymerization of tert‐ butyl methacrylate and the cross‐linker ethylene glycol dimethacrylate (EGDMA) initiated potassium persulfate. Core‐shell (CSPs) then synthesized encapsulation CCPs via living radical methyl methacrylate, EGDMA, N,N ‐diethyldithiocarbamate. These CSPs present surface photofunctional dithiocarbamate groups. Core‐poly(methyl methacrylate) brush (CBPs) photoinduced atom transfer MMA CBP...