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Publisher's Note: Journal of Electronics and Electrical Engineering—A New Open Access Journal 出版商注:电子与电气工程杂志-一个新的开放获取期刊
Q4 Engineering Pub Date : 2022-10-18 DOI: 10.37256/jeee.1120222040
Hang Gao, Russell Li
Electrical engineering is a field of engineering that focuses on electricity and electronics, from microscopic computer components to large-scale electrical networks. It has been a key aspect of human advancement for centuries. Universal Wiser Publisher [1] is pleased to announce the launch of a new journal—Journal of Electronics and Electrical Engineering [2].
电气工程是一门专注于电力和电子的工程领域,从微观的计算机组件到大规模的电力网络。几个世纪以来,它一直是人类进步的一个关键方面。环球智慧出版社[1]很高兴地宣布发行一本新期刊——《电子与电气工程杂志》[2]。
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引用次数: 0
The Occurrence of Primary REE Minerals and Their Para genesis within S-Type Granite and Quartz Vein, South Bangka, Bangka Belitung Islands, Indonesia 印度尼西亚邦加勿里洞群岛南邦加s型花岗岩和石英脉中原生稀土矿物的赋存状态及其Para成因
Q4 Engineering Pub Date : 2022-08-27 DOI: 10.33140/jeee.01.01.06
A. Tampubolon
Primary rare earth element (REE) minerals known as carbonate and phosphate were identified in some localities. The carbonate type consists mainly of parasite, allanite, and bastnaesite, while REE phosphate group comprises mainly monazite and xenotime. They are accompanied by thorite and zircon. REE-bearing quartz vein is associated with cassiterite, pyrite, chalcopyrite, sphalerite, and tourmaline. The hydrothermal fluid that plays a role in REE mineral precipitation is subdivided into three stages: early (> 316oC - 316oC), medium (< 316oC – 210oC), and late (<210oC190oC). The δ18O range which is 12, 7 ‰ – 13 ‰, and the δ34S range are 3, 9 ‰ – 5, 5 ‰ indicate that the origin of hydrothermal fluid comes from mixing fluids of both meteoric and magmatic sources, and also influenced by metamorphic waters. While the source of sulphur is granitic and sedimentary rocks. REE phosphate is thought to have formed in the early magmatic crystallization stage except for monazite formed in the medium magmatic-hydrothermal and late hydrothermal stages. Primary REE carbonate may have formed in a medium hydrothermal-magmatic stage except for parasite and allanite, they may have formed in late-stage hydrothermal. Chalcopyrite and sphalerite seem to be associated with REE minerals in the medium and late hydrothermal stages.
在部分地区发现了碳酸盐、磷酸盐等原生稀土元素矿物。碳酸盐型主要由寄生体、褐褐矿和氟碳铈矿组成,而稀土磷矿主要由独居石和xenotime组成。伴随有钍石和锆石。含稀土石英脉与锡石、黄铁矿、黄铜矿、闪锌矿、电气石伴生。将热液对稀土矿物沉淀的作用划分为早期(> 316oC ~ 316oC)、中期(< 316oC ~ 210oC)和晚期(<210oC ~ 190oc) 3个阶段。δ18O值范围为12.7‰~ 13‰,δ34S值范围为3.9‰~ 5.5‰,表明热液的来源是大气和岩浆混合流体,并受变质水的影响。而硫的来源是花岗岩和沉积岩。除独居石形成于岩浆-热液中期和热液晚期外,稀土磷矿形成于早期岩浆结晶阶段。原生稀土碳酸盐岩除寄生体和allanite外,可能形成于中热液-岩浆期。黄铜矿和闪锌矿在热液中晚期与稀土矿物伴生。
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引用次数: 0
Improvement in Properties of Mild Steel by Electrodeposition of Ni-Zn-Cu Alloys at Different Cu Contents 电沉积不同Cu含量的Ni-Zn-Cu合金对低碳钢性能的改善
Q4 Engineering Pub Date : 2022-08-15 DOI: 10.33140/jeee.01.01.07
In this study, the effect of copper concentration was investigated on phase structure, morphology, and mechanical properties of Ni-Zn-Cu alloys coating. Ternary Ni-Zn-Cu alloys were prepared and deposited on a mild steel substrate by electrochemical deposition method. Four different baths were prepared by varying Cu concentration. The deposition was carried out for 20 min with constant current density of 20 mAcm-2 with pH of 3 under constant magnetic field of 4.5 mT to make the coating smooth. Crystal structure, surface morphology, hardness and mechanical properties of investigated alloy coatings were characterized. The results showed that crystal structure of the all the deposited alloys is face centered cubic. The lattice parameter is decreasing and morphology of the alloys changes from large nodules to smaller nodules with the increase in Cu concentration. Mechanical properties of substrate are improved by deposition of Ni-Zn-Cu alloys and thus mild steel will become more applicable in tooling, construction and transportation industries.
本文研究了铜浓度对Ni-Zn-Cu合金镀层相组织、形貌和力学性能的影响。采用电化学沉积法在低碳钢基体上制备了Ni-Zn-Cu三元合金。通过不同的Cu浓度制备了四种不同的浴液。在4.5 mT的恒定磁场下,以20 mAcm-2的恒定电流密度,pH为3,沉积20 min,使镀层光滑。对合金涂层的晶体结构、表面形貌、硬度和力学性能进行了表征。结果表明:所沉积合金的晶体结构均为面心立方结构。随着Cu浓度的增加,合金的晶格参数逐渐减小,合金的形貌由大结核变为小结核。通过沉积Ni-Zn-Cu合金可以改善基体的力学性能,从而使低碳钢在模具、建筑和交通运输等行业中得到更广泛的应用。
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引用次数: 0
Analysis of Cryptography before Steganography Operation by ROC Curves and Confusion Matrices Criteria 用ROC曲线和混淆矩阵准则分析隐写前的密码学
Q4 Engineering Pub Date : 2022-08-15 DOI: 10.33140/jeee.01.01.05
The steganography algorithms based on media type, format and capacity are used for different applications. The use of cryptographic algorithms also depends on the type of application. The challenge that can be investigated is the use of cryptographic algorithms in the steganography process, which must be properly scrutinized due to the special sensitivities of these two technologies. The use of cryptographic algorithms in steganographic systems increases the security of hidden data, but this security level should not make the entropy more visible and did not consider other metric. For this reason, in this paper, two steganographic algorithms for JPEG image and two steganographic algorithms for audio in WAV format are investigated, so that before the steganographic operation, a cryptography algorithm is used to encrypt the message. In the following, after reviewing the steganographic algorithms using several valid steganalysis, the advantages of using and not using these cryptographic algorithms against their disadvantages are reviewed and suggestions about their use in steganography algorithms and systems are presented.
基于介质类型、格式和容量的隐写算法被用于不同的应用。加密算法的使用也取决于应用程序的类型。可以调查的挑战是在隐写过程中使用加密算法,由于这两种技术的特殊敏感性,必须对其进行适当的审查。在隐写系统中使用加密算法增加了隐藏数据的安全性,但这种安全级别不应该使熵更明显,并且没有考虑其他度量。为此,本文研究了JPEG图像的两种隐写算法和WAV格式音频的两种隐写算法,以便在隐写操作之前,先使用一种加密算法对消息进行加密。下面,在回顾了使用几种有效隐写分析的隐写算法之后,对使用和不使用这些加密算法的优点以及它们的缺点进行了回顾,并提出了在隐写算法和系统中使用它们的建议。
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引用次数: 0
Geometric Mean Method Combined With Ant Colony Optimization Algorithm to Solve Multi-Objective Transportation Problems in Fuzzy Environments 几何平均法结合蚁群优化算法求解模糊环境下的多目标运输问题
Q4 Engineering Pub Date : 2022-08-15 DOI: 10.33140/jeee.01.01.04
The transportation problem (TP) is a well-known subject in the field of optimization and a very prevalent challenge for businesspeople. The goal is to reduce the total transportation cost, of delivering resources from sources to destinations. The literature demonstrates that various approaches have been designed with a single goal in mind, although TPs are not always developed with a bi-goal in mind. Solving transportation difficulties with several objectives is a common task. In this study, a new method for addressing multi-criteria TP using geometric means, along with a novel approach of the Ant Colony Optimization algorithm (ACO) for solving multi-objective TP in a fuzzy environment. Fuzzy numbers have been used to solve real-world problems in various domains, including operations research and optimization. The ACO Algorithm has long been recognized as a viable alternative strategy for solving optimization problems. The purpose of this study is to provide a unique approach for organizing fuzzy numbers as well as enhancements to the ACO algorithm for solving the Multi-Objective TP model. Our method, such as Geometric Mean Ant Colony Optimization Algorithm (GMACOA), outperforms other methods in terms of objective values. Numerical examples are provided to demonstrate the method in comparison to various current methods.
运输问题(TP)是优化领域中一个众所周知的问题,也是一个非常普遍的挑战。目标是降低总运输成本,将资源从产地运送到目的地。文献表明,各种方法的设计都考虑到一个目标,尽管tp并不总是考虑到双目标。解决具有多个目标的运输困难是一项常见的任务。本文提出了一种利用几何均值求解多目标TP的新方法,以及一种利用蚁群优化算法求解模糊环境下多目标TP的新方法。模糊数已被用于解决各种领域的现实问题,包括运筹学和优化。蚁群算法一直被认为是解决优化问题的一种可行的替代策略。本研究的目的是提供一种独特的方法来组织模糊数,并改进蚁群算法来解决多目标TP模型。我们的方法,如几何平均蚁群优化算法(GMACOA),在目标值方面优于其他方法。通过数值算例对该方法进行了验证,并与现有方法进行了比较。
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引用次数: 0
Implementation Analysis of Municipal Solid Waste Management in Dinanagar City of Punjab, India 印度旁遮普邦迪纳讷格市城市固体废物管理实施分析
Q4 Engineering Pub Date : 2022-08-15 DOI: 10.33140/jeee.01.01.08
Unscientific waste management is increasingly becoming a major reason for environmental issues in Indian cities. Unlike previous municipal solid waste management in cities of Punjab (India), this study analyses the implementation of solid waste management. Also, examine the factors responsible for the dysfunction of the municipal corporation of Dinanagar (MCD) city of Punjab (India). To fulfil the research objectives, primary and secondary data are collected from various sources for qualitative and quantitative analysis. However, some drawbacks and flaws were found in the existing practices of Municipal Solid Waste Management. The internal consistency and validity are measured using Cronbach’s alpha. The importance- performance analysis and Strengths, Weaknesses, Opportunities, Threats analysis is performed to conclude the present scenario of MCD. This study is eventually concluded with some suggestions to waste managing authorities and researchers for contribution in improvement of current system.
不科学的废物管理正日益成为印度城市环境问题的一个主要原因。不像以前的城市固体废物管理在旁遮普(印度)的城市,本研究分析固体废物管理的实施。此外,还研究了导致旁遮普(印度)迪纳纳加尔市(MCD)市政公司功能失调的因素。为了完成研究目标,从各种来源收集第一手和二手数据进行定性和定量分析。然而,我国现行的城市生活垃圾管理实践也存在着一些弊端和缺陷。内部一致性和效度采用Cronbach 's alpha测量。通过重要性-绩效分析和优势,劣势,机会,威胁分析来总结MCD的现状。最后,本研究提出了一些建议,以供废物管理当局和研究人员在改善现行制度方面有所贡献。
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引用次数: 0
GIS and Remote Sensing Based Land Degradation Assessment and Mapping: Case Study Adea Woreda 基于GIS和遥感的土地退化评价与制图:以中国为例
Q4 Engineering Pub Date : 2022-08-15 DOI: 10.33140/jeee.01.01.02
Land degradation is an increasing problem in many parts of the world. Success in fighting land degradation requires an improved understanding of its causes, impact, degree and acquaintance with climate, soil, water, land cover and socio-economic factors. The present study aimed to assess the advanced of Remote Sensing (RS) and Geographic Information System (GIS) to quantify land degradation risk in Adea woreda. Remotely sensed data provide timely, accurate and reliable information on degraded lands at certain time intervals in a cost-effective method. This paper presents the effect of land-use changes on land degradation by utilization of remote sensing and GIS methods due to un wise agriculture and urbanization activities in the period 2000–2022. The analysis is based on the processing of Landsat 7 and Landsat OLI 8 satellite images from 2000 and 2022. In the analysis of satellite images, the supervised classification maximum likelihood method was used. The study demonstrated that about 42.77 % of the study area has undergone very high risk of degradation, whereas 44.26% of the area has undergone moderate degradation. About 12.50% of the total area was characterized by marginally degraded. The results indicated that the salinity, alkalinity and water logging are the main common degradation hazards of the Adea woreda.
在世界许多地方,土地退化是一个日益严重的问题。要成功地防治土地退化,就必须更好地了解其原因、影响、程度,并熟悉气候、土壤、水、土地覆盖和社会经济因素。本研究旨在评估遥感(RS)和地理信息系统(GIS)在亚洲土地退化风险量化方面的进展。遥感数据以一种成本效益高的方法,每隔一定时间间隔提供有关退化土地的及时、准确和可靠的信息。本文利用遥感和GIS方法,分析了2000-2022年不明智的农业和城市化活动对土地利用变化的影响。该分析基于对2000年和2022年Landsat 7和Landsat OLI 8卫星图像的处理。在卫星图像的分析中,采用了监督分类极大似然方法。研究表明,42.77%的研究区发生了非常高的退化风险,44.26%的研究区发生了中度退化。约12.50%的面积处于边缘退化状态。结果表明,盐碱度、碱度和淹水是水藻常见的主要退化危害。
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引用次数: 0
Multi-Dimensional Spectral Process for Cepstral Feature Engineering & Formant Coding 基于倒谱特征工程的多维谱处理与构象编码
Q4 Engineering Pub Date : 2022-08-15 DOI: 10.33140/jeee.01.01.01
The fundamental frequency feature is essential for Automatic Speech Recognition because its patterns convey a paralanguage and its tuning normalizes other speech features. Human speech is multidimensional because it is minimally represented by three variables: the intonation (or pitch), the formants (or timbre), and the speech resolution (or depth). These variables represent the hidden states of the local glottal variation, the vocal tract response, and the frequency scale, respectively. Computing them one by one is not as efficient as computing them together, so this article introduces a new speech feature extraction approach. The article is introductory; it focuses on the basic concepts of our new approach and does not elaborate on all applications. It demonstrates that the unit of a cepstral value, which is a spectral value of spectrums, is a unit of acceleration since its discrete variable, the quefrency, can be expressed in Hertz-per-microsecond. The article shows how to produce refined voice analysis from robust estimates and how to reconstruct speech signals from feature spaces. And it concludes that the pitch track of the new approach is as good as two open-source pitch extractors. Combining multiple processes, attenuating background noises, and enabling distant-speech recognition, we introduce the Speech Quefrency Transform (SQT) approach as well as multiple quefrency scales. SQT is a set of frequency transforms whose spectral leakages are controlled per a frequency-modulation model. SQT captures the stationarity of time series onto a hyperspace that resembles the cepstrogram when it is reduced for pitch track extraction.
基频特征对自动语音识别至关重要,因为它的模式传达了一种副语言,它的调谐使其他语音特征规范化。人类语言是多维的,因为它最小程度上由三个变量表示:语调(或音高)、共振峰(或音色)和语音分辨率(或深度)。这些变量分别代表了局部声门变化、声道反应和频率尺度的隐藏状态。本文提出了一种新的语音特征提取方法。这篇文章是介绍性的;它侧重于我们的新方法的基本概念,并没有详细说明所有的应用。它证明了倒谱值的单位(谱的谱值)是加速度的单位,因为它的离散变量频率可以用赫兹/微秒表示。本文展示了如何从鲁棒估计生成精细的语音分析,以及如何从特征空间重建语音信号。结果表明,新方法的音高轨迹与两个开源的音高提取器一样好。结合多个过程,衰减背景噪声,实现远距离语音识别,我们介绍了语音频率变换(SQT)方法以及多个频率尺度。SQT是一组频率变换,其频谱泄漏由调频模型控制。SQT将时间序列的平稳性捕获到类似于倒图的超空间上,当它被减少用于音轨提取时。
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引用次数: 0
Towards the Reliability Check of Complementary Methods for the Precise Estimation of Peak Efficiency of a Long Run Used Germanium Detector in Low Activity Environmental Measurements 低活度环境测量中长期用锗探测器峰值效率精确估计补充方法的可靠性检验
Q4 Engineering Pub Date : 2022-08-15 DOI: 10.33140/jeee.01.01.03
The gamma-ray spectrometry using long run used hyper pure germanium (HPGe) detector needs a stringent full energy peak (FEP) efficiency calibration for environmental radioactivity measurements. The FEP efficiency calibration was carried out using the complementary methods like analytical estimations and Monte Carlo (MC) simulations. In our work, for the analytical estimations, the relative deviation of the theoretical results with that of experimental FEP efficiency was found to be less than 6%. However, in the case of MC methodologies, an overall estimated standard deviation of 5% could be achievable only with the optimized geometry of the long run used germanium detector for low-activity environmental measurements.
使用长程超纯锗(HPGe)探测器的伽马射线能谱法需要严格的全能量峰(FEP)效率校准才能进行环境放射性测量。利用分析估计和蒙特卡罗(MC)模拟等互补方法进行FEP效率标定。在我们的工作中,对于分析估计,理论结果与实验效率的相对偏差小于6%。然而,在MC方法的情况下,只有长期使用优化的几何形状的锗探测器进行低活度环境测量,才能实现5%的总体估计标准偏差。
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引用次数: 1
A Novel Approach of Digital Filter Unit Noise Gain Minimization Based on Variable Function Optimization 一种基于变函数优化的数字滤波器单元噪声增益最小化方法
Q4 Engineering Pub Date : 2022-08-15 DOI: 10.33140/jeee.01.01.09
In this work, a new and improved optimization approach that minimize the unit noise gain in state-space of digital filters is presented. The main idea is the formulation of the unit noise gain in the form of several variables function then can get the equivalent state-space by optimization method. From this new generalized matrix, a new state space is derived and guaranty the minimization of unit noise gain. From various simulations operated on different order digital filters, we show the superiority of the proposed Several Variables Function Optimization (SVFO) algorithm over existing method.
在这项工作中,提出了一种新的改进的优化方法,使数字滤波器的状态空间单元噪声增益最小。其主要思想是将单位噪声增益以多变量函数的形式表示,然后通过优化方法得到等效的状态空间。在此基础上,导出了一个新的状态空间,保证了单元噪声增益的最小化。通过对不同阶数数字滤波器的仿真,我们证明了所提出的多变量函数优化(SVFO)算法相对于现有方法的优越性。
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引用次数: 0
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Journal of Electrical and Electronics Engineering
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