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Comparison of SVM and Naïve Bayes Algorithms with InNER enriched to Predict Hate Speech SVM与Naïve内部富集贝叶斯算法预测仇恨言论的比较
Q4 Engineering Pub Date : 2023-09-25 DOI: 10.31202/ecjse.1325078
Isnen HADİ AL GHOZALİ, Arif PİRMAN, Indra INDRA
Hate speech is one of the negative sides of social media abuse. Hate speech can be classified into insults, defamation, unpleasant acts, provoking, inciting, and spreading fake news (hoax). The purpose of this study is to compare the SVM and Naïve Bayes methods with feature extraction in the form of Indonesian NER (InNER) for detecting hate speech. To obtain the best model, this study applies five steps: a) data collection; b) data preprocessing; c) feature engineering; d) model development; and e) evaluating and comparing models. In this study, we have collected 7100 tweets as an initial dataset. After manual annotation, this study produced 1681 tweets: 548 insult tweets, 288 blasphemy tweets, 272 provocative tweets, and 573 neutral tweets. This study use two Python libraries that accommodate NER in Indonesian, namely the NLTK library and the Polyglot library. Based on the results of the evaluation of the proposed model, model 5, which develops the SVM algorithm with the NLTK library, is the best model proposed. This model shows an accuracy score of 92.88% with a precision of 0.93, a recall of 0.93, and an F-1 score of 0.92.
仇恨言论是社交媒体滥用的负面影响之一。仇恨言论可以分为侮辱、诽谤、令人不快的行为、挑衅、煽动和传播假新闻(恶作剧)。本研究的目的是比较SVM和Naïve贝叶斯方法与印度尼西亚NER (InNER)形式的特征提取在仇恨言论检测中的应用。为了获得最佳模型,本研究采用了五个步骤:a)数据收集;B)数据预处理;C)特征工程;D)模型开发;e)评价和比较模型。在本研究中,我们收集了7100条tweet作为初始数据集。经过人工标注,本研究共产生1681条推文:侮辱推文548条,亵渎推文288条,挑衅推文272条,中性推文573条。本研究使用两个Python库来适应印尼的NER,即NLTK库和Polyglot库。根据模型的评价结果,利用NLTK库开发SVM算法的模型5是提出的最佳模型。该模型的准确率为92.88%,精密度为0.93,召回率为0.93,F-1得分为0.92。
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引用次数: 0
Comparative Analysis of Mitoxantrone and Doxorubicin Interactions with Single-Walled Carbon Nanotubes Using Molecular Dynamics Simulations 米托蒽醌和阿霉素与单壁碳纳米管相互作用的分子动力学模拟比较分析
Q4 Engineering Pub Date : 2023-09-23 DOI: 10.31202/ecjse.1345238
Muhammed Berkcan ARSLAN
Cancer remains a significant global health concern, responsible for numerous deaths worldwide. Common treatment methods include surgery, radiotherapy, chemotherapy, as well as biological therapies, and targeted therapies. The field of nanotechnology has made remarkable advancements in drug delivery systems, enabling improved drug penetration and direct delivery to specific areas. These systems, known as drug delivery systems (DDSs), aim to enhance drug efficacy and safety by controlling release rate, timing, and targeted location within the body. Carbon nanotubes (CNTs) have emerged as promising materials for DDSs due to their ability to target specific sites and regulate molecule release. Mitoxantrone (MTX) and doxorubicin (DOX) are widely used chemotherapy drugs. This study uses molecular dynamics simulations to compare the interactions between these drugs and single-walled carbon nanotubes (SWCNTs). The simulation process was performed using BIOVA Materials Studio. The adsorption process of these drugs was observed in a non-aqueous simulation box to evaluate their compatibility with nanocarriers for biomedical applications. In addition, the interaction energies between drugs and nanotubes were investigated. The results indicated positively energetic interactions between anti-cancer drugs and SWCNTs, driven by π-π interactions and substantial interaction energies. While both mitoxantrone and doxorubicin effectively interacted with SWCNTs, doxorubicin demonstrated more efficient interaction.
癌症仍然是一个重大的全球健康问题,在世界范围内造成大量死亡。常见的治疗方法包括手术、放疗、化疗,以及生物治疗和靶向治疗。纳米技术在给药系统方面取得了显著的进步,使药物渗透和直接给药到特定区域得以改善。这些系统被称为药物传递系统(dds),旨在通过控制体内的释放速度、时间和靶向位置来提高药物的疗效和安全性。碳纳米管(CNTs)由于其靶向特定位点和调节分子释放的能力而成为dds的有前途的材料。米托蒽醌(MTX)和阿霉素(DOX)是广泛使用的化疗药物。本研究使用分子动力学模拟来比较这些药物与单壁碳纳米管(SWCNTs)之间的相互作用。模拟过程使用BIOVA Materials Studio进行。在非水模拟箱中观察这些药物的吸附过程,以评估其与纳米载体的相容性,用于生物医学应用。此外,研究了药物与纳米管的相互作用能。结果表明,在π-π相互作用和大量相互作用能量的驱动下,抗癌药物与SWCNTs之间存在正能量相互作用。虽然米托蒽醌和阿霉素与SWCNTs均有效相互作用,但阿霉素表现出更有效的相互作用。
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引用次数: 0
A Comprehensive Review on Sustainability and Environmental Impact of Laser Powder Bed Fusion Additively Manufactured As-Built Ti-6Al-4V Parts 激光粉末床熔融增材制造Ti-6Al-4V零件的可持续性及其对环境的影响
Q4 Engineering Pub Date : 2023-09-23 DOI: 10.31202/ecjse.1325609
Erkan TUR
Utilization of additive manufacturing, particularly Laser Powder Bed Fusion (L-PBF), has garnered considerable interest in recent times owing to its capacity to produce intricate geometries and functional components possessing enhanced mechanical characteristics. This review provides a thorough examination of the sustainability and environmental implications associated with the production of as-built Ti-6Al-4V parts using Laser Powder Bed Fusion (L-PBF) technology in additive manufacturing. This study aims to assess the sustainability dimensions of Laser Powder Bed Fusion technology, specifically in relation to material efficiency, energy usage, and waste production. Furthermore, this study evaluates the environmental ramifications associated with L-PBF Ti-6Al-4V components across their entire life cycle, encompassing activities such as extraction of raw materials, processing, utilization, and end-of-life management. This review critically examines the existing body of knowledge pertaining to the sustainability and environmental implications associated with as-built L-PBF Ti-6Al-4V components. The objective of this study is to determine the primary factors that impact sustainability, offer a comprehensive understanding of the environmental consequences associated with L-PBF technology, and delineate the existing constraints, difficulties, and prospects for future investigations in the domain of sustainable additive manufacturing.
增材制造的利用,特别是激光粉末床融合(L-PBF),由于其能够生产复杂的几何形状和具有增强机械特性的功能部件,近年来获得了相当大的兴趣。本文综述了在增材制造中使用激光粉末床融合(L-PBF)技术生产已建Ti-6Al-4V部件的可持续性和环境影响。本研究旨在评估激光粉末床融合技术的可持续性维度,特别是在材料效率、能源使用和废物产生方面。此外,本研究还评估了L-PBF Ti-6Al-4V组件在其整个生命周期中的环境影响,包括原材料提取、加工、利用和生命周期结束管理等活动。这篇综述批判性地审查了与已建成的L-PBF Ti-6Al-4V组件相关的可持续性和环境影响的现有知识体系。本研究的目的是确定影响可持续性的主要因素,全面了解与L-PBF技术相关的环境后果,并描述可持续增材制造领域现有的限制、困难和未来研究的前景。
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引用次数: 0
A Five Level SC Inverter with reduced switch count and self balancing capability 五电平SC逆变器减少开关计数和自平衡能力
Q4 Engineering Pub Date : 2023-09-23 DOI: 10.31202/ecjse.1263584
B HEMANTH KUMAR, Kavalı JANARDHAN, V. S CHANDRİKA, G. G RAJA SEKHAR, Deepak Prakash KADAM, Dhananjay KUMAR
Multilevel inverters (MLIs) have become a favoured option for medium voltage and high power DC to AC conversion applications to assure high power level cascade type inverter which accepts multiple/single DC sources and offers combined AC output for appropriate voltage and frequency. MLIs provide various benefits over two-level inverters, including lower dv/dt, the capacity to handle greater voltage levels, a quasi-sinusoidal output waveform, and lower Total Harmonic Distortion (THD), among others. The biggest problem in adopting the MLI is the increasing number of switches and it's design. MLIs based on switched capacitors (SC) for boost-type DC-AC converters often demonstrate a trade-off among switch voltage rating and switch count. This work introduces a new 5-level(5L) SC inverter by adding a switched capacitor module into the usual 3L neutral point clamped inverter leg(NPC). The SC unit consists of one bidirectional switch and two capacitors capable of withstanding one-quarter of the DC voltage. When compared to typical 5L inverters, such as standard NPC and active NPC designs, the new approach in addition reduces the amount of switches but also shorten the topology. The proposed FLSCI has been examined by using several PWM techniques. The simulation and hardware results showed that the presented FLSCI is ideal for a broad variety of applications.
多电平逆变器(mli)已成为中压和大功率直流到交流转换应用的首选,以确保高功率级联型逆变器接受多个/单个直流电源,并提供适当电压和频率的组合交流输出。与双电平逆变器相比,mli具有多种优势,包括更低的dv/dt、处理更高电压水平的能力、准正弦输出波形和更低的总谐波失真(THD)等。采用MLI最大的问题是不断增加的开关数量及其设计。基于开关电容(SC)的升压型DC-AC变换器的mli通常需要在开关电压额定值和开关计数之间进行权衡。这项工作介绍了一种新的5电平(5L) SC逆变器,通过在通常的3L中性点箝位逆变器腿(NPC)中添加开关电容模块。SC单元由一个双向开关和两个能够承受四分之一直流电压的电容器组成。与典型的5L逆变器(如标准NPC和有源NPC设计)相比,新方法除了减少开关数量外,还缩短了拓扑结构。所提出的FLSCI已经通过使用几种PWM技术进行了检查。仿真和硬件结果表明,所提出的FLSCI是各种应用的理想选择。
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引用次数: 0
Investigation of the effects of red clay on the structural properties of chamotted clay bodies 红粘土对黏土体结构特性影响的研究
Q4 Engineering Pub Date : 2023-09-23 DOI: 10.31202/ecjse.1336631
Selvin YESİLAY
Chamotte means fired clay. It is also called Grog and it can have many particle sizes, from fine to coarse. The composition formed by the addition of chamotte to various clay compositions is called chamotte mud (CM). The most preferred and widely used muds in the production of artistic ceramic products are chamotte mud and red pottery mud (R-PM). The sintering, linear shrinkage, water absorption, and color properties of these muds vary depending on their components and firing temperatures. Chamotte mud has properties that make it suitable for use at high temperatures (1150-1200 oC). The obtained products, however, have a high-water absorption value, because it deforms in high-temperature firings, the red Kınık pottery mud used in the study is typically used for artistic productions at low temperatures such as 900-1000 oC. Ceramic artists may prefer to combine and use both types of mud to enhance the color effects and shaping properties in their works. The aim of this study is to reduce water absorption of the body while increasing firing shrinkage, in other words, increasing shrinkage during sintering by adding red pottery mud to chamotte mud and also to optimize the tendency of the R-PM to undergo deformation with temperature. As a result, the products obtained, particularly those produced for artistic outdoor use, will have a longer lifetime. In experimental studies, 6 recipes were produced by combining chamotte and red mud in specific ratios, and the changes in properties such as water absorption, linear shrinkage, color, gloss, microstructure, and sintering behavior of ceramic bodies as a result of firing at 1160 oC were investigated.
沙莫特的意思是烧制粘土。它也被称为格劳格酒,它可以有许多粒度,从细到粗。在各种粘土成分中加入灰泥形成的成分称为灰泥(CM)。在艺术陶瓷产品的生产中,最优选和广泛使用的泥浆是赤陶泥和红陶泥(R-PM)。这些泥浆的烧结、线性收缩、吸水和颜色特性取决于它们的成分和烧成温度。Chamotte泥浆具有适合在高温(1150-1200℃)下使用的特性。然而,所获得的产品具有很高的吸水值,因为它在高温烧制中会变形,研究中使用的红色Kınık陶泥通常在900-1000℃的低温下用于艺术制作。陶瓷艺术家可能更喜欢将两种类型的泥结合使用,以增强作品的色彩效果和造型性能。& # x0D;本研究的目的是通过在赤陶泥中加入赤陶泥来减少体的吸水率,同时增加烧结收缩率,即增加烧结时的收缩率,同时优化R-PM随温度的变形趋势。因此,所获得的产品,特别是那些为艺术户外使用而生产的产品,将具有更长的使用寿命。在实验研究中,将赤泥与灰浆按一定比例混合制备了6种配方,考察了1160℃烧制后陶瓷体的吸水率、线收缩率、颜色、光泽度、微观结构、烧结性能等性能的变化。
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 The aim of this study is to reduce water absorption of the body while increasing firing shrinkage, in other words, increasing shrinkage during sintering by adding red pottery mud to chamotte mud and also to optimize the tendency of the R-PM to undergo deformation with temperature. As a result, the products obtained, particularly those produced for artistic outdoor use, will have a longer lifetime. In experimental studies, 6 recipes were produced by combining chamotte and red mud in specific ratios, and the changes in properties such as water absorption, linear shrinkage, color, gloss, microstructure, and sintering behavior of ceramic bodies as a result of firing at 1160 oC were investigated.","PeriodicalId":52363,"journal":{"name":"El-Cezeri Journal of Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136010468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and Study of an AI-Powered Autonomous Stair Climbing Robot 人工智能自主爬楼梯机器人的设计与研究
Q4 Engineering Pub Date : 2023-08-24 DOI: 10.31202/ecjse.1272769
Montaser RAMADAN, Shadi M S HİLLES, Mohammad ALKHEDHER
Mobile robots are frequently utilized in the surveillance sector for both industrial and military purposes. The ability to navigate stairs is crucial for carrying out surveillance jobs like urban search and rescue operations. The research paper shows that the design methodology for a six-wheeled rover robot that can adapt to various stairs and maintain its stability based on the robot's specifications, kinematics restrictions, the maximum height, and the lowest step length needed to climb up and down the stairs is proposed. Based on a Raspberry Pi, camera, and LIDAR distance sensor, the suggested robot has the capacity to measure the stair height before starting to climb. A Convolutional Neural Networks (CNN) deep learning model is developed for the purpose of stair recognition. Additionally, stair alignment was estimated using statistical filtering on pictures and LIDAR distance reading. The robot can then decide whether it can climb the stairs or not based on its kinematics limitations and the height of the stairs as measured by our system. Result shows that our stair detection algorithm achieved an accuracy of 99.46% and a mean average precision of 99.64%. The proposed AI-Powered Robot-based stair recognition system, according to final results, effectively climbed stairs with a height range between 13 and 23 cm.
移动机器人经常用于工业和军事目的的监视部门。在城市搜索和救援行动等监视工作中,行走楼梯的能力至关重要。研究表明,根据机器人的规格、运动学限制、上下楼梯所需的最大高度和最低步长,提出了能够适应各种楼梯并保持其稳定性的六轮漫游机器人的设计方法。基于树莓派、摄像头和激光雷达距离传感器,建议的机器人有能力在开始攀登之前测量楼梯的高度。提出了一种基于卷积神经网络(CNN)深度学习的楼梯识别模型。此外,使用图像和激光雷达距离读取的统计滤波来估计楼梯对齐。然后机器人可以根据它的运动学限制和我们系统测量的楼梯高度来决定它是否可以爬楼梯。结果表明,该算法的台阶检测准确率为99.46%,平均精度为99.64%。根据最终结果,提出的基于人工智能机器人的楼梯识别系统可以有效地爬上高度在13到23厘米之间的楼梯。
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引用次数: 0
Optimal Reactive Power Injection in Distribution Networks to Maximize Cost Savings Via AOA 基于AOA的配电网无功注入优化成本节约
Q4 Engineering Pub Date : 2023-08-24 DOI: 10.31202/ecjse.1270783
Lavanya M
Utilities have been forced to raise the overall efficiency towards a better position in radial distribution systems (DS). The literature has proved that reactive power compensation performs well in minimizing the power loss ( PLoss ) and enhancing the bus voltage profile within the permissible range in radial DSs. This work presents Archimedes optimization algorithm (AOA) to resolve the problem efficiently. The merit of this technique is that it can offer a global or near-global optimum for capacitor siting and sizing. The main intention of this study is to obtain annual financial benefit (AFB) using the placement and sizing of capacitors optimally. This can, however, be achieved by minimizing the objective function composed of cost-based PLoss and capacitor investment cost on radial DSs. The proposed technique has been tested on four renowned DS: the Indian 10-bus, modified 12-bus, IEEE 69-bus, and 94-bus Portugal system. The previously published papers are compared with the outcomes of AOA in terms of PLoss reduction and AFB and prove that AOA achieves better performance and more AFB.
公用事业公司被迫在径向配电系统(DS)中提高整体效率。文献已经证明,无功补偿在减小功率损耗(PLoss)和提高径向DSs的母线电压分布在允许范围内有很好的效果。本文提出了阿基米德优化算法(AOA)来有效地解决这一问题。这种技术的优点是它可以为电容器的选址和尺寸提供全局或接近全局的最佳选择。本研究的主要目的是通过优化电容器的布局和尺寸来获得年度经济效益(AFB)。然而,这可以通过最小化目标函数来实现,该目标函数由基于成本的plos和径向DSs上的电容器投资成本组成。所提出的技术已经在四个著名的系统上进行了测试:印度的10总线、改进的12总线、IEEE 69总线和94总线葡萄牙系统。将以往发表的论文与AOA的结果在PLoss降低和AFB方面进行了比较,证明AOA的性能更好,AFB更多。
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引用次数: 0
Optimization of Monopole Consecutive Square-Shaped Patch Antenna with ANN for Wireless Communicaton Systems 无线通信系统中单极连续方形贴片天线的人工神经网络优化
Q4 Engineering Pub Date : 2023-08-19 DOI: 10.31202/ecjse.1247180
Sena Esen BAYER KESKİN, Cem GÜLER, Batuhan USLU
In recent years, Artificial Neural Network (ANN) applications in antenna structures have gained significant traction due to their potential to reduce design and calculation times, offering optimization and prediction capabilities. This study introduces a novel monopole patch antenna design featuring a consecutive square-shaped broadband microstrip-line-fed antenna. The proposed antenna exhibits an impressive impedance bandwidth of 68% (1.55 - 2.82 GHz), a remarkable return loss of -47.25 dB, and a directivity gain of 2.77 dBi. Simulation studies were conducted using CST™ Studio Suite electromagnetic simulation software. The ANN model developed based on feed-forward backpropagation demonstrates exceptional agreement with the simulation results, showcasing an accuracy of 99.61805% and performing 2769.231 times faster. With advancing technology, ANNs present an effective solution for addressing complex antenna design challenges arising from escalating data rate requirements and uninterrupted data transmission. These results open promising avenues for further advancements in antenna design aided by ANN applications.
近年来,人工神经网络(ANN)在天线结构中的应用因其减少设计和计算时间、提供优化和预测能力的潜力而获得了极大的关注。本研究提出一种新颖的单极贴片天线设计,采用连续方形宽带微带馈线天线。该天线的阻抗带宽为68% (1.55 - 2.82 GHz),回波损耗为-47.25 dB,方向性增益为2.77 dBi。仿真研究使用CST™Studio Suite电磁仿真软件进行。基于前馈反向传播的人工神经网络模型与仿真结果非常吻合,准确率达到99.61805%,运行速度提高2769.231倍。随着技术的进步,人工神经网络为解决不断升级的数据速率要求和不间断数据传输所带来的复杂天线设计挑战提供了有效的解决方案。这些结果为人工神经网络应用辅助天线设计的进一步发展开辟了有希望的道路。
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引用次数: 0
A Study on The Projection of Coal-Fired Thermal Power Plants 燃煤火力发电厂规划研究
Q4 Engineering Pub Date : 2023-08-19 DOI: 10.31202/ecjse.1271128
Nagihan ERSOY, Nuri BİNGÖL, İsmail EKMEKCİ
In this study, the main countries with high coal-fired power plant installation capacity and Türkiye, which are among the first in the world in electricity production in this field, and Türkiye are discussed, and parameters such as the installed power and capacity developments of the coal-fired power plants in these countries, electrical energy production values and CO2 emissions from fossil fuels have been evaluated over the years. Emissions from fossil fuels have been evaluated over the years. In this study, predictions about the future of coal-fired power plants were tried to be made by making projection studies. Analysis results are indicated and interpreted with figures and tables. When projections are made according to the current situation, it is predicted that in 2030 and 2050, China will be the first in coal-fired power plant installed power development and electricity production, and accordingly in CO2 emissions from fossil fuels. In addition, the capacity utilization rates, which are an important parameter regarding the efficient operation of coal-fired thermal power plants and their age, have been determined for certain countries over the years. In this study, the country with the highest capacity ratio, with a capacity ratio of around 90%, was determined as Japan. Today, in connection with the re-emergence of coal with the emergence of the energy crisis, energy production planning, and projection studies gain strategic importance for each country. In the literature, country-based projection studies for coal-fired power plants are insufficient and limited. Comprehensive projection study in this area contributes to the studies in the literature.
在本研究中,讨论了世界上在该领域的电力生产和 rkiye中排名第一的燃煤电厂装机容量和trkiye的主要国家,并评估了这些国家燃煤电厂的装机容量和容量发展、电能生产价值和化石燃料CO2排放等参数。多年来,人们对化石燃料的排放进行了评估。在本研究中,试图通过预测研究对燃煤电厂的未来进行预测。分析结果用图表表示和解释。按照目前的情况进行预测,预计到2030年和2050年,中国将成为燃煤电厂装机发展和发电量第一的国家,同时化石燃料二氧化碳排放量也将成为世界第一。此外,多年来,某些国家已经确定了能力利用率,这是燃煤火力发电厂有效运行及其使用年限的重要参数。在本研究中,容量比最高的国家被确定为日本,容量比约为90%。今天,随着煤炭的重新出现和能源危机的出现,能源生产规划和预测研究对每个国家都具有战略重要性。在文献中,基于国家的燃煤电厂预测研究是不充分和有限的。该领域的综合投影研究有助于文献中的研究。
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引用次数: 0
Development of a Technique for Increasing the Directivity of an Antenna Array in the Microwave Range 微波波段天线阵列指向性增强技术的发展
Q4 Engineering Pub Date : 2023-08-19 DOI: 10.31202/ecjse.1282892
Islam ISLAMOV, Agarahim RAHİMOV, Murad JAHANGİROV, Namiq SHUKUROV, Rashid ABDULLAYEV
The paper proposes and tests an effective method for improving the directivity of diffraction-type leaky-wave antennas based on the implementation of a longitudinal change in the profile of the distribution-radiating system due to the variation of the aiming distance according to a given amplitude distribution. It has been established that changing the aiming distance along the aperture according to a theoretically calculated regularity makes it possible to improve the initial directional properties of the antenna: to reduce the maximum level of side lobes, and also to increase the antenna gain.
本文提出并验证了一种提高衍射型漏波天线指向性的有效方法,该方法是根据给定的振幅分布使瞄准距离发生变化,从而使分布辐射系统的轮廓发生纵向变化。根据理论计算的规律改变沿孔径方向的瞄准距离,可以改善天线的初始定向特性,降低侧瓣的最大电平,增加天线增益。
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引用次数: 0
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El-Cezeri Journal of Science and Engineering
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