Miracle-dz/UniFAR-FTUs huggingface dataset:
m) High-Power InGaAsP-Active Diode Lasers

Short-wavelength Al-free active-region com- pressively strained ( %) InGaAsP single-quantum- well diode lasers have been optimized for high continuous-wave (CW) output powers. The use of a highly misoriented substrate is shown to improve the low-temperature spectral characteristics of the quantum well active and result in higher laser performance. By employing strain compensated active regions and growth on highly misoriented substrates, record-high characteristic temperature coefficients (115-125 K) and (400-500 K) are achieved for this wavelength region ( m). A broad waveguide laser design with In (Ga Al ) P cladding layers is utilized to achieve CW output powers of 3.2 W (100- m wide, mm), with stable operation demonstrated at 0.5-W CW.
Architecture of Granary Monitoring System Based on Wireless Sensor Network

Many research projects are involved in environmental monitoring in recent years. However, most existing studies are interest in the outdoor natural environment monitoring. Few of them focus on the indoor monitoring. This paper presents a system based on wireless sensor network (WSN) for granary monitoring including grain temperature and grain moisture content monitoring. To our best knowledge, this is the first time to provide a system based on WSN, which can measure the grain moisture content on line. The overall system architecture is described in detail. Besides, the wireless communication protocol and the network deployment are introduced.
AN ELASTO-VISCOPLASTIC CONSTITUTIVE MODEL FOR FROZEN SAND

本論文では, 弾粘塑性理論にある種の時間測度を導入することによって, 三軸圧縮条件下における凍結砂のひずみ硬化―軟化挙動とひずみ速度効果を説明できる構成式を誘導した. ついで, 構成式に含まれる材料定数の決定方法を詳細に示すとともに単位体積中に土粒子の占める割合, 温度, ひずみ速度ならびに拘束圧の材料定数に与える影響を検討した.
Improving irrigation water operation in the lower reaches of the Amu Darya River – current status and suggestions

Irrigated agriculture is widespread in the Central Asian drylands and important for food security of the region. However irrigation practices based on rules made for cotton production on large units do not provide adequate guidance for the now widespread small farms that produce cotton wheat and rice. Excessive unsustainable water use is the consequence. Land and water resource management practices were analysed in 2006 for the irrigated area (approx. 1885 ha) of a water users' association (WUA) as a case study. The Shomakhulum WUA is situated in the Khorezm region Uzbekistan in the Aral Sea Basin. The designed water allowance of 0.40 l s−1 ha−1 was 46% higher than the 0.21 l s−1 ha−1 required in 2006. A ponding experiment conducted at two locations under typically shallow groundwater conditions showed that actual seepage losses in the major distributing canal (Pakhtakiyar) in the WUA were about 2% at one site and negative at the other. This does not support the present blanket recommendation of an additional 29% of water to compensate for anticipated seepage losses. Considering the effects of shallow groundwater the seasonal leaching requirements were estimated at 200 mm versus the 400 mm based on the blanket local recommendations for a 14 ha cotton field. However the actually applied water amounted to 670 mm which exceeds the calculated requirements by 235% and the local recommendation by 68%. The findings showed (i) excessive irrigation water supply and in turn high wastage owing to an underestimation of the potential shallow groundwater contribution (ii) overestimation of conveyance losses and (iii) excessive leaching due to outdated knowledge on leaching requirements when compared to standards. We suggest that the outdated water allowance the inaccurate estimation of the conveyance efficiency and excessive water applications during leaching cause a waste of precious fresh water and a rise in the shallow groundwater levels which consequently increases secondary soil salinity. The revision of irrigation and leaching norms combined with an improved knowledge on seepage dynamics under shallow groundwater levels is needed before any further recommendations can be made to the farmers in order to reach the objective of sustainable agriculture in the area. Copyright © 2011 John Wiley & Sons Ltd.
Spatial Resolution Enhancement for Hyperspectral Image Using Gaussian Scale Mixtures

In this paper, a wavelet-based Bayesian fusion framework is presented, in which a low spatial resolution hyperspectral (HS) image is fused with a high spatial resolution multispectral (MS) image. Particularly, a multivariate model, Gaussian Scale Mixture (GSM) model, is employed, which is believed to be capable of modeling the distribution of wavelet coefficients more accurately. A practical implementation scheme is also presented for feasible calculations. The proposed approach is validated by simulation experiments for HS and MS image fusion. The experimental results of the proposed approach are also compared with its counterpart employing a Gaussian model for performance evaluation.
Improved lifetime of poly-Si TFTs with a self-aligned gate-overlapped LDD structure

We investigated the lifetimes for various poly-Si thin film transistor (TFT) structures. A gate-overlapped lightly doped drain (GOLDD) structure was self-aligned by the side etching of Al-Nd in an Al-Nd/Mo gate electrode. The dopant activation process in the LDD regions of GOLDD TFTs was performed by using a H/sub 2/ ion-doping technique. We also observed the effect of lifetime on the source/drain activation process. The thermal annealing of the source/drain region was found to extend the lifetime. The predicted lifetime of our GOLDD poly-Si TFT is superior to those of non-lightly doped drain (non-LDD) and lightly-doped drain (LDD) poly-Si TFTs. The trapped-electron density at the drain junction after bias-stressing was also investigated using a two-dimensional (2-D) simulation.
The Methods of Laser Guided Signal Information Identification

The aim of laser guided weapons adopting laser code and decode is to resolve the mutual interference of multiple irradiator in the same war zone. As an effective interfering means, active interference makes the laser guided weapons lose the right object information to protect the important objects in the attack phase by sending much interfering signal. But how to intercept, capture, analyze and identify the laser guided signal code information real-time is the first task in the laser countwork. Based on analyzing the characters of existed laser coding and wave gate, combining the time-correlation character of laser guided signal, this paper proposes the technique of laser guided signal information autocorrelation identification, and it is studied deeply by simulation and experiment. The result shows that the technique resolved the difficult problem of copying the enemy laser signal in short time effectively. The technique wins the time for the laser countwork, and it is feasible and takes on military application value.
Control of the white mango scale Aulacaspis tubercularis (Hemiptera: Sternorrhyncha: Diaspididae) with systemic soil drenching insecticides and pruning in greater than ten years old mangos in western Ethiopia

The white mango scale insect (WMS), Aulacaspis tubercularis Newstead, 1906 is a key pest of mango in Ethiopia, which has been spreading throughout the country since its introduction in 2010. Evaluation of the efficacy of two systemic soil drenching insecticides (thiamethoxam 25 % WG and imidacloprid 35 % SC) independently, and in combination with tree management (pruning) for the cont­rol of the WMS was conducted under field conditions in western Ethiopia in two locations in 2018 and 2019. Randomized complete block designs with three replications were used for the experiments. In the first site, all treatments resulted in scale populations that were significantly lower than the control (1086 crawlers and females per leaf). Thiamethoxam 25 % WG at 12 g/tree + pruning resulted in the lowest number of the WMS after the second treatment (43.5 per leaf) followed by thiamethoxam 25 % WG at 18 g/tree + pruning, which was statistically similar. In the second site, imidacloprid 35 % SC + thiamethoxam 25 % WG at 18 g/tree + pruning, resulted in the lowest mean number of the WMS (31.1 per leaf) followed by thiamethoxam 25 % WG at 12 g/tree + pruning (61.4 per leaf). This treatment also gave the highest percentage reduction in number of the WMS compared to the WMS counting before treatment application. This study has shown that use of systemic insecticides and pruning are promising control tactics for the WMS. Cost implications and effects of the insecticides on the natural enemy complex and residual toxicity in fruits need to be evaluated. To cite: Belay Habtegebriel, Dawit Melisie, Hunde Kidane, Teshale Daba & Ferdu Azerefegn. 2020. Control of the white mango scale Aulacaspis tubercularis (Hemiptera: Sternorrhyncha: Diaspididae) with systemic soil drenching insecticides and pruning in greater than ten years old mangos in western Ethiopia. Israel Journal of Entomology 50(1): 65–73. http://doi.org/10.5281/zenodo.3987792http://zoobank.org/References/8FA7BF70-B678-420B-9E11-3D87C8F16C76
Bayesian Monte Carlo for evaluation of uncertainty in hydrodynamic models of coastal systems

ABSTRACT Camacho, R.A. and Martin, J.L. , 2013. Bayesian Monte Carlo for evaluation of uncertainty in hydrodynamic models of coastal systems. Uncertainty analysis constitutes the set of procedures and strategies conducted to identify, quantify, and report the impacts of different sources of errors on the predictions of a numerical model. Although during the last couple of decades several investigations in different areas of water resources have explicitly discussed the importance of a new modeling paradigm where model predictions are reported along with uncertainty estimates, uncertainty analysis remains an emerging topic in the field of hydrodynamic modeling. Presently, several unresolved issues remain with regard to the applicability, benefits, and limitations of existing strategies for quantification of uncertainty, and the identification of the principal sources of uncertainty in practical applications. In this document we apply the Bayesian Monte Carlo (BMC) method as a strategy to perform uncertainty analysis in coastal modeling studies. BMC is based on robust principles of Bayesian inference and Monte Carlo simulations, and has been successfully applied for studies of groundwater modeling, hydrologic modeling, and water quality modeling in the past. The procedural aspects of the method are discussed in detail, and the implementation of the method is demonstrated for the hydrodynamic model of the St. Louis Bay estuary, Mississippi (USA) for the evaluation of the impacts of input data errors. Results indicate that BMC is an effective strategy for uncertainty analyses, although in professional practice its use may be limited by computational requirements. We also point out that the effectiveness of the method may be affected by the correct selection of the likelihood function and the model error variance.
Switching loss minimised space vector PWM method for IGBT three-level inverter

In an inverter-fed motor drive system, inverter output-current distortion is reduced by enhancing the switching frequency and the motor torque ripple; magnetic noise is also reduced as a consequence. However, the system efficiency is also reduced due to the switching loss; this, in turn, sets a limit on any further enhancement of the switching frequency. This is particularly the case for the IGBT three-level inverter, since it is used in high switching frequency applications: the number of switching devices is twice that of the two-level inverter, thus the switching loss problem is more serious. The authors describe a new PWM strategy for the three-level inverter with an ability to reduce switching loss. In comparison with conventional sinusoidal PWM methods generating almost the same distorted load current, every phase of the inverter can have its switching stopped for 120/spl deg/ in one period by this new method. According to the load power factor angle /spl beta/, if /spl beta//spl les/30/spl deg/ the "no switching duration" can be set just in the centre of the peak value region of the load current, hence the switching loss can be greatly reduced. The reduction of switching loss is not dependent on /spl beta/.
Analisis Faktor Pelatihan Pengembangan Karier Dan Kepuasan Kerja Terhadap Prestasi Kerja Karyawan

Prestasi kerja merupakan bagian dari kebutuhan sumberdaya manusia untuk memberikan dampak menguntungkan bagi perusahaan. Banyak faktor yang dapat memberikan prestasi kerja yang diinginkan perusahaan diantaranya pelatihan, pengembangan karier dan kepuasan kerja itu sendiri.P enelitian ini bertujuan untuk mengetahui dan menganalisis Pengaruh Pelatihan , pengembangan karir dan kepuasan kerja t erhadap prestasi kerja k aryawan . Penelitian ini adalah penelitian assosiatif dengan sampel penelitian sebanyak 79 responden yang merupakan karyawan tetap pada PT Telkom Akses Regional 1 Medan. Teknik penggumpulan data menggunakan observasi dan koesioner online yang dilakukan uji validitas dan reliabilitas. T eknik analisis data m en ggunakan analysis regresi berganda dan uji asumsi klasik, serta uji hipotesis. Hasil Penelitian menunjukan bahwa secara parsial seluruh variabel pelatihan , pengembangan karier dan kepuasan kerja berpengaruh positif dan signifikan terhadap Prestasi Kerja Karyawan . Secara simultan seluruh variabel pelatihan, Pengembangan Kari e r dan kepuasan kerja berpengaruh positif signifikan terhadap Prestasi kerja. Kontribusi variabel indevenden terhadap prestasi kerja
6.6L: LateNews Paper: A Low Quiescent Current and Fast Settling Output Buffer with Boosting Slewrate Scheme for Large LCD Driver

In this paper, we describe an output buffer with a fast settling time without compromising the power consumption. It was achieved by employing a slew boosting circuit SBC that operates just during the transition. This scheme was implemented into a 6bit 720ch column driver IC with a 0. 18μm 13V high voltage CMOS process. The measured static current was 3. 2μA. The settling time at 99.5% was 1. 4μs with 10KΩ load resistance and 280pF load capacitance.
Low-voltage electrodistortive mirror system for wavefront control

A computerized closed loop wavefront control system has been developed by Hughes Danbury Optical Systems (HDOS) in support of the Advanced Beam Control System (ABCS) Program. This system uses a 97 channel Litton Itek Optical Systems deformable mirror (DM) to provide accurate wavefront control. The continuous facesheet mirror has a 63 mm aperture and drivers which address each of the 97 low voltage electrostrictive actuators independently. Performance has been thoroughly tested to ensure meeting the system requirements. Facesheet stroke is 4 (mu) when actuated in piston, and 2.7 (mu) for a singularly driven actuator; test results indicate linear surface displacement as a function of input voltage throughout this stroke region. Hysteresis is less than 1.5% of the total stroke and an actuator's coupling to its nearest neighbor is approximately 10%. Single actuator bandwidth is virtually flat out to 1 kHz. Performance data is presented. The computerized wavefront control system is capable of accurately measuring the output wavefront and generating commands to produce the desired shape. Closed loop control has been demonstrated to produce various mirror surfaces with an accuracy of 0.020 (mu) rms. Data is presented showing the control capability.
Generation of radio noise in the vicinity of the earth

Abstract : A tentative classification of possible sources of radio noise in the vicinity of the earth ay be obtai ed by examining separately available sources of power and known mechanism for conversion of this power. Among the former we may list high-energy electrons such as those trapped in the Van Allen belts; the solar wind; bursts of high-energy particles ejected by the sun; shock waves in the interplanetary medium originating on the sun; and the rotational energy of the earth. Mechanisms of conversion may be classified as direct, such as synchrotron and Cerenkov radiation, and indirect. Indirect conversion involves the excitation of an intermediate state by the available sources of power and subsequent radiation by this state. This intermediate sta e may be localized heating, the formation of unstable current patterns, the acceleration of particles, or the generation of waves which are themselves nonradiative, such as plasma oscillations. The following mechanisms which are relevant to the generation of radio noise receive special attention: Cerenkov radiation, two-stream instability, and the coupling of waves by inhomogeneity and nonlinearity. (Author)
Finite element optimization of field configuration for the eddy current testing of roller bearing rib rings

Eddy current probes are being used widely in manufacturing industries for the nondestructive testing (NDT) of electrically conductive materials and products. Although significant progress has been made in recent years in modeling of electromagnetic fields and NDT phenomena, little attention has been given to the optimization of probe field configuration for maximum sensitivity. As a result, the design of eddy current sensors still remains empirical. This paper describes the application of the finite element numerical method to the design of a special purpose eddy current probe used in the nondestructive evaluation (NDE) of rib rings to ensure adequate case depth (rib rings provide seating for rollers in single row unitized tapered roller bearings). Presented in this paper are (a) the geometry of the developed probe with dual primary, (b) results of finite element model analyses, (c) comparison of test data with predicted outputs, and (d) the performance of this new probe in production testing.
Business prospects of wide-scale deployment of free space optical technology as a last-mile solution: a techno-economic evaluation

A technoeconomic evaluation of the business prospects of a wide-scale deployment of free space optical (FSO) technology as a last-mile solution is carried out. The evaluation is based on a technoeconomic tool that taking into account network topology, area characteristics, service demand, and price evolution forecasts, estimates key economic figures-of-merit. It is shown that FSO technology could provide a viable alternative in situations where the duct availability is limited, and fiber-to-the-home/office or fiber-to-the-cabinet scenarios have negative or less favorable business prospects. Hybrid fiber/FSO scenarios are also investigated taking into account different FSO coverage conditions.
A new approach to extract the threshold voltage of MOSFETs

A new method is presented to extract the threshold voltage of MOSFETs. It is developed based on an integral function which is insensitive to the drain and source series resistances of the MOSFETs. The method is tested in the environments of circuit simulator (SPICE), device simulation (MEDICI), and measurements.
Reduced state sequence detection of full response continuous phase modulation

A reduced state sequence detector (RSSD) which combines decision feedback with Viterbi decoding is proposed for M-ary full response continuous phase modulation. The detector is analysed with minimum Euclidean distances and by simulations of the symbol error probability. It is shown that M-ary full response CPM schemes can be optimally decoded by a decoder with only two states when the modulation index is relatively small ( >
Generalised Fourier transform-domain technique for narrowband interference suppression in CDMA communication systems

A generalisation of Fourier transform-domain technique for narrowband interference suppression in CDMA communication systems is introduced. In this technique, first the sum of a number of sinusoids each modulated by a polynomial is chosen as a model for the narrowband interference. Then, by fitting the received signal on the proposed model, an estimate of the narrowband interference signal is obtained, and its effect is subtracted from the received signal.
Organization and reorganization of autonomous oceanographic sampling networks

Systems such as autonomous oceanographic sampling networks (AOSNs) that have multiple autonomous or semi-autonomous components must have an organization which specifies the interactions between the components to allow them to distribute and accomplish the system's tasks. AOSNs present a special challenge. They will be deployed for long periods of time, and they are open systems whose composition will change over time. Such systems require the ability to autonomously organize and reorganize in response to changes in its composition, the environment, or the mission. In this paper, we present preliminary results from a project whose goal is to develop mechanisms to allow AOSNs to self-organize and reorganize. We discuss characteristics of AOSNs which impact their organization and give an overview of an approach which addresses their special requirements. We discuss a simulation methodology designed to simulate the aggregate properties of the protocols developed, and we describe preliminary results obtained using that simulator.
Adopting a disaster-management-based contingency model to the problem of ad hoc forecasting: toward information technology-based strategies

Ad hoc forecasts are generally unstructured forecasts that are performed infrequently. Unfortunately, there are no widely accepted formulae for performing such tasks. In this paper, the authors draw parallels between the process of ad hoc forecasting and disaster management, using characteristics of disasters to develop analogous dimensions for ad hoc forecasts, Although a given unit within an organization may not have the opportunity to repeat a particular ad hoc forecast, there are certain similarities among ad hoc forecasts performed by different units within an organization. Mapping ad hoc forecasts along the disaster characteristics brings out these similarities and allows one to identify technology-based strategies for improving ad hoc forecasts. Just as disaster planning draws together people from different units of the organization and creates a common knowledge base, they propose the creation of a common repository of ad hoc forecasts that member organizations can draw upon. This allows organizations that find themselves in need of a particular ad hoc forecast to learn from both the disaster management literature and their own experiences. The presence of the Internet and the World Wide Web provide the infrastructure for creating an inter-organizational information system.