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A REVIEW OF NEW COMPOSITE MATERIALS FOR THERMAL PROTECTION IN AN AERO-ENGINE APPLICATION 新型复合热防护材料在航空发动机中的应用综述
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2022.7101
I. Mohammed
The paper is aimed at exploring new composite materials for thermal protection in an aero-engine application. Aluminium hybrid composites have been widely used to substitute materials in the aerospace industry because of their high thermal resistance, wear resistance and strength-to-weight ratio. This review article covers standard fire test results of different types of burners and burn-through times of the composites and polymeric materials. The paper evaluates the performance of different structural composite materials including synthetic fibres, natural fibres and some type of coating on the materials in a pool-fire scenario. It also deals with the practical use of flame retardancy and performance factors including safety in an aircraft related to polymer composites. It was found that most of the materials used could only be categorized as fire resistance materials except GLARE materials and synthetic/natural fibre composites and aerogel composites which showed the characteristic of fireproof materials.
本文旨在探索新型复合热防护材料在航空发动机中的应用。铝杂化复合材料因其具有较高的耐热性、耐磨性和高强度重量比而被广泛应用于航空航天工业的替代材料。本文综述了不同类型燃烧器的标准燃烧试验结果及复合材料和高分子材料的燃透时间。本文对不同结构复合材料(合成纤维、天然纤维和某些类型的涂层)在池火场景下的性能进行了评价。它还涉及阻燃的实际使用和性能因素,包括与聚合物复合材料有关的飞机的安全性。研究发现,除眩光材料和合成/天然纤维复合材料、气凝胶复合材料表现出防火材料的特性外,大部分材料只能归类为耐火材料。
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引用次数: 0
SURVEY ON CRIME ANALYSIS AND PREDICTION USING MACHINE LEARNING TECHNIQUES 使用机器学习技术的犯罪分析和预测研究
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2022.6303
P. Manasvi, P. Tejaswini
As of late, wrongdoing has turned into a noticeable type of mischief to individuals and society. The ascent in wrongdoing is making imbalance in the society. To examine and answer to the idea of a wrongdoing, it is critical to see how the wrongdoing was perpetrated. It is a wrongdoing used to recognize wrongdoing in each side of the globe. The principal aim of this venture is to decrease wrongdoing in the most impacted regions. In this task, we anticipate the assortment of wrongdoings, the most apparent month, the most noticeable time, and the date of event. Some AI calculations, like Naive Bayes, were portrayed in this work to carry out various sorts of wrongdoing, and the current uprightness was higher than arranged.
最近,不法行为已经变成了对个人和社会的一种明显的危害。不法行为的增加正在造成社会的不平衡。要检查和回答不法行为的概念,关键是要了解不法行为是如何实施的。这是一种用来识别全球各地不法行为的不法行为。这项投资的主要目的是减少受影响最严重地区的不法行为。在这个任务中,我们预测各种各样的错误,最明显的月份,最明显的时间,以及事件的日期。一些人工智能计算,比如朴素贝叶斯(Naive Bayes),在这项工作中被描述为执行各种各样的错误行为,目前的正确率高于安排的水平。
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引用次数: 1
CHARACTERIZATION OF CYLINDRICAL STRUCTURE FABRICATED USING GLASS FIBER REINFORCED POLYMER AND MACHINED BY ABRASIVE JET MACHINING 磨料射流加工玻璃纤维增强聚合物圆柱结构的表征
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2022.6203
Giridharan V, G. S, Gowtham R, Hemadri Chadalavada
Composite materials play an important role in many industrial applications. Researchers around the world are working to create new composites to improve the usefulness of these materials. GRP (Fiberglass Reinforced Polymer) is a composite material made from a fiberglass reinforced polymer matrix. They have better stiffness, strength, electrical conductivity, low coefficient of thermal expansion, excellent fatigue resistance, and the ability to produce materials of complex shapes. I am. In this study, different layers of different types of fiberglass cloth are used to manually manufacture fiberglass reinforced polymer hollow cylinder components and test the torsional and compressive strength of the sample. There are various fiberglass fabrics such as veil mats and textiles. Analysis is performed on the different types of samples generated to see if they are suitable for different applications. The results of the study show the effect of different layers of fiberglass on their strength and the possibility of replacing the weakly transmitting metal shaft with a composite shaft (GRP).
复合材料在许多工业应用中发挥着重要作用。世界各地的研究人员都在努力创造新的复合材料,以提高这些材料的实用性。GRP(玻纤增强聚合物)是一种由玻纤增强聚合物基体制成的复合材料。它们具有较好的刚度、强度、导电性、低的热膨胀系数、优异的抗疲劳性能和制作复杂形状材料的能力。我是。本研究采用不同层数不同类型的玻璃纤维布手工制作玻璃纤维增强聚合物中空圆柱体构件,并测试样品的抗扭强度和抗压强度。有各种玻璃纤维织物,如面纱垫和纺织品。对生成的不同类型的样品进行分析,以确定它们是否适合不同的应用。研究结果表明了不同玻璃纤维层数对其强度的影响,以及用复合材料轴(GRP)代替弱透射金属轴的可能性。
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引用次数: 0
E-MAN… (A HAND CUM LEG INSTRUMENT). FOR THE AMPUTEES OF THIS UNIVERSE -DIFFERENTLY ABLED TO DEFINITELY ABLED. E-man…(手兼腿的乐器)。对于这个世界上的截肢者来说,从不同的能力到绝对的能力。
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2021.5502
R. A, L. C, D. M
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引用次数: 0
Applications of Decision Trees- A Review 决策树的应用综述
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2021.5602
H. M, S. Prakash
Decision trees are used at uncertain times to evaluate independent decisions. It contains decision points and decision alternatives. A decision tree is support apparatus with a tree-like construction that models plausible results, cost of resources, utilities, and potential outcomes using decision tree algorithms. This field of decision trees is aligned and more applicable for machine learning algorithms. This gives the outcomes of the decision path by the decision parameters considered and the problem is taken into account. Here, the multiple areas are discussed discuss marking the applications of the decision trees in the field ofproduction processes, mining, pharmaceutical processes, manufacturing processes, Biotechnology, and medical diagnosis.
决策树在不确定的时间用来评估独立的决策。它包含决策点和决策选择。决策树是具有树状结构的支持设备,它使用决策树算法对可能的结果、资源成本、效用和潜在结果进行建模。这个领域的决策树是一致的,更适用于机器学习算法。这给出了考虑的决策参数和考虑问题的决策路径的结果。本文讨论了决策树在生产过程、采矿、制药过程、制造过程、生物技术和医疗诊断等领域的应用。
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引用次数: 0
SMART MEDICINE REMINDER AND DISPENSER 智能药物提醒和分配器
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2023.7204
J. Mohan, G. Bapitha, H. Kumar
Because of our specialized understanding in our profession, engineers have a higher duty to address societal problems as they arise. Many individuals today all around the world suffer from common disorders like high blood pressure, diabetes, etc. People with chronic illnesses should take their medications on a regular basis to treat their conditions, but in today's hectic society, many people forget to do so. Elderly people frequently forget to take their medications or take the incorrect medication at the wrong time. The project that we selected is entirely for the health of the elderly and those who regularly take medication. Our solution combines a medication dispenser and a reminder to dispense the right medication at the right time. The whole control activity of the smart medicine reminder is regulated by this system's Arduino UNO board. The voice alarm used by the system to remind the patient to take their medication can be adjusted by the patient or their caretakers. The close relatives of the patient, like son, daughter, wife, husband, mother, or father, can be the voice used in this system. To keep the date and time accurate for the system, we use a real-time clock module. Also, we use a 1x5 keypad to set alarms, and an LCD display is used to show the current time and date as well as to set alarms. The dispensing section uses servo motors to provide the medication efficiently. To remind hospital patients to take their medications on time, this approach can also be utilized in hospitals. This Smart medicine dispensers and reminders are highly helpful in a variety of scenarios, including patient homes, hospitals, COVID wards, and quarantine areas. It may also be incorporated into the system in the patient monitoring system.
由于我们对专业的专业理解,工程师有更高的责任来解决出现的社会问题。当今世界上许多人都患有常见的疾病,如高血压、糖尿病等。患有慢性疾病的人应该定期服用药物来治疗他们的病情,但在当今忙碌的社会中,许多人忘记了这样做。老年人经常忘记服药或在错误的时间服用错误的药物。我们选择的项目完全是为了老年人和那些经常服药的人的健康。我们的解决方案结合了药物分配器和提醒在正确的时间分配正确的药物。智能药物提醒器的整个控制活动由该系统的Arduino UNO板来调节。系统用于提醒患者服药的语音警报可由患者或其看护人员进行调整。病人的近亲,如儿子、女儿、妻子、丈夫、母亲或父亲,都可以在这个系统中使用语音。为了保证系统的日期和时间准确,我们使用了实时时钟模块。此外,我们使用一个1x5的键盘来设置闹钟,并使用LCD显示器来显示当前时间和日期以及设置闹钟。配药部分采用伺服电机,有效地提供药物。为了提醒住院患者按时服药,这种方法也可以在医院中使用。这款智能药物分配器和提醒器在各种情况下都非常有用,包括患者家庭、医院、COVID病房和隔离区。也可在患者监护系统中纳入该系统。
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引用次数: 0
PERFORMANCE COMPARISON OF BEAM FORMING TECHNIQUE USING LMS AND SMI ALGORITHMS 基于LMS和smi算法的波束成形技术性能比较
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2021.5601
R. A, L. C, D. M
The main objective is to analyse adaptive beam forming approach based on smart antenna. Several algorithms have been developed based on different criteria to compute the complex weights. In this paper the comparison of the performance of algorithms namely Least Mean Square algorithm (LMS) and Sample Matrix Inversion algorithm (SMI) are presented. The main advantage of these algorithms is its simplicity with a minimal loss of accuracy. This paper describes the design of an adaptive antenna array after receiving the signals from the desired and interfering directions. Then the weight vector is evaluated to minimize the error that provides an appropriate beam pattern to each subscriber. For these two algorithms the mean square error and Array factor are evaluated and compared. Simulation results revealed that Least Mean Squares (LMS) are best for beam forming (to form main lobes) towards desired user but they have limitations towards interference rejection. While Sample Matrix Inversion Algorithm (SMI) has satisfactory response towards beam forming and it gives better outcome for interference rejection. It is verified that convergence rate of SMI is faster than LMS so SMI is proved the best choice. The effect of changing number of elements on Array factor for SMI algorithm has also been studied. Keywords— Antenna Arrays, Adaptive Algorithms, Beam forming, Interference, Smart antenna, Least Mean Squares (LMS), Sample Matrix Inversion Algorithm (SMI).
主要目的是分析基于智能天线的自适应波束形成方法。基于不同的准则,已经开发了几种算法来计算复杂的权重。本文比较了最小均方算法(LMS)和样本矩阵反演算法(SMI)的性能。这些算法的主要优点是其简单性和最小的准确性损失。本文介绍了接收期望方向和干扰方向信号后的自适应天线阵列的设计。然后对权重向量进行评估,使误差最小化,从而为每个用户提供合适的波束方向图。对这两种算法的均方误差和阵列因子进行了计算和比较。仿真结果表明,最小均方差(LMS)对波束形成(形成主瓣)的效果最好,但在抑制干扰方面存在局限性。而样本矩阵反演算法(SMI)对波束形成有满意的响应,抗干扰效果较好。验证了SMI的收敛速度比LMS更快,证明SMI是最佳选择。本文还研究了SMI算法中元素个数变化对阵列因子的影响。关键词:天线阵列,自适应算法,波束形成,干扰,智能天线,最小均方(LMS),样本矩阵反演算法(SMI)
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引用次数: 1
ULTRASONIC GLOVE -A VIRTUAL EYE FOR BLIND PEOPLE 超声波手套——盲人的虚拟眼睛
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2022.6302
Vasudeo Dabhade, Prachi Modak, Pranali Musale, Sandhya Chaudhari, Vaishali Nikhade
In the present paper we report a the construction of an equipment which helps blind people to move faster and more confidently by finding nearby obstacles using the ultrasonic sensors by alerting the blind person with a buzzer sound.
在本文中,我们报告了一种设备的构造,该设备通过使用超声波传感器通过发出蜂鸣器提醒盲人来发现附近的障碍物,从而帮助盲人更快更自信地移动。
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引用次数: 0
A STUDY OF AN ECO-FRIENDLY STREET LIGHTING SYSTEM FOR A SUSTAINABLE FUTURE 可持续未来的生态友好型街道照明系统研究
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2022.6407
Rashmi Wimansa Neelawathura, Sahan Dharshana Siriwardena, Rayantha Anthony Sinnathamby, Sanduni Ruwandika
The fundamental goal of this research is to create something that is long-lasting, environmentally friendly, and energyefficient for everyday consumers. As a result, the concept of an automatic green street lighting system was proposed, addressing the issue of needless road illumination and, in particular without energy wastage. Street lighting when it is not required is a waste of resources and electrical energy in general. Modern civilization has adopted the philosophy of "Going Green," which is emphasized at all times, particularly in the engineering field. Engineers come up with novel ways to save energy while improving the efficiency of their goods. One of these methods is to use a smart system, which has applications in numerous areas of society, such as at home, at work, and so on. Our main goal is to reduce energy while maintaining user-friendliness. Smart systems, created years ago, are still the foundation and are used to this day, improving as time goes on and striving for even greater development.
这项研究的基本目标是为日常消费者创造一种持久、环保和节能的东西。因此,提出了自动绿色街道照明系统的概念,解决了不必要的道路照明问题,特别是没有能源浪费。一般来说,不需要的街道照明是对资源和电能的浪费。现代文明采用了“走向绿色”的哲学,这在任何时候都被强调,特别是在工程领域。工程师们想出了新颖的方法来节约能源,同时提高产品的效率。其中一种方法是使用智能系统,它在社会的许多领域都有应用,比如在家里,在工作中等等。我们的主要目标是在保持用户友好的同时减少能源消耗。多年前创造的智能系统,至今仍是基础和使用,随着时间的推移,不断完善,并争取更大的发展。
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引用次数: 0
THE USE OF INTERACTIVE WHITEBOARDS FOR TEACHING AND LEARNING IN TERTIARY INSTITUTIONS 在高等教育院校使用互动式白板进行教学
Pub Date : 1900-01-01 DOI: 10.54473/ijtret.2022.6606
Dr. Uduak, Idoghor, Dr.Kasumu, Rebecca Oluwayimika
The study is descriptive survey research that is intended to examine how interactive whiteboards are used in tertiary institutions for teaching and learning. The Ignatius Ajuru University of Education in Rivers State is the study's location. All education students at Ignatius Ajuru University of Education's Faculty of Education make up the study population. The study included 270 pupils as a sample. Using a simple random sampling procedure, candidates were chosen. The interactive whiteboard for teaching and learning at tertiary institutions (TUOIWBFTLTI), a structured questionnaire with 30 items, was utilized as the study's instrument to gather data from respondents. The responses were correlated and a test-retest was used to achieve a reliability coefficient of 0.64. The statistical methods for the investigation were mean and standard deviation. The study discovered that students' interactive whiteboards incorporate different learning styles into a single experience, are spotless and require very little maintenance, and don't require chalk, markers, or any other writing implements. The researcher advises using smart interactive whiteboards for student presentations in light of the findings.
该研究是一项描述性调查研究,旨在研究交互式白板在高等教育机构的教学和学习中是如何使用的。河流州的伊格内修斯·阿朱鲁教育大学是这项研究的地点。伊格内修斯阿朱鲁教育大学教育学院的所有教育专业学生组成了研究人口。这项研究包括270名学生作为样本。通过简单的随机抽样程序,候选人被选中。本研究使用互动教学白板(TUOIWBFTLTI),一份包含30个项目的结构化问卷,收集调查对象的数据。经重测,信度系数为0.64。调查的统计方法为平均值和标准差。研究发现,学生的交互式白板将不同的学习风格融入到一个单一的体验中,一尘不染,几乎不需要维护,也不需要粉笔、记号笔或任何其他书写工具。根据研究结果,研究人员建议学生使用智能交互式白板进行演示。
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引用次数: 0
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International Journal Of Trendy Research In Engineering And Technology
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