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PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)最新文献

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Development of smart GPS-based nurse following robot 基于gps的智能护士跟随机器人的研制
A. M. Andrew, W. Faridah, W. Tan, S. Ragunathan, A. S. N. Amirah, N. Zainab, T. P. Yi
Hospital nurses regularly bring their medicines and healthcare items to the patients using trolley. They need to push or pull the cart to the patient’s beds, and then, need to bring it back to the original position many times daily. It can be tiresome for nurses because in a day, they need to treat many patients in the hospital. Thus, many devices have been invented to assist the nurses in their daily work routines. This research is focusing on developing a nurse following mobile robot that follows and carries medical items. The mobile robot is integrated with microcontroller, Global Positioning System (GPS) module, digital compass module and Bluetooth module. To use the robot, the nurse firstly needs to connect her smartphone to the robot through Bluetooth connection. Once the connection is established, the robot will start to follow the nurse. The robot can carry a maximum load of 5 kg and uses two direct current geared motors and a caster wheel to move.
医院护士定期用手推车给病人送去药品和保健用品。他们需要推或拉手推车到病人的床上,然后,每天需要多次把它拉回原来的位置。这对护士来说是很烦人的,因为在一天内,他们需要在医院里治疗很多病人。因此,发明了许多设备来帮助护士进行日常工作。此次研究的重点是开发一种护士跟随移动机器人,它可以跟随并携带医疗物品。该移动机器人集成了微控制器、全球定位系统(GPS)模块、数字罗盘模块和蓝牙模块。要使用机器人,护士首先需要将智能手机通过蓝牙连接到机器人上。一旦连接建立,机器人将开始跟随护士。该机器人可以携带5公斤的最大负载,并使用两个直流齿轮马达和一个脚轮来移动。
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引用次数: 0
Hard-porous-lightweight PM Fe-Cr-Al2O3 MMCs sintered under hybrid microwave energy 复合微波能下烧结的硬孔-轻质PM Fe-Cr-Al2O3 MMCs
W. Rahman, Z. Shayfull, H. Radhwan, R. M. Farizuan, M. Fathullah, M. Darus
This study reports on the effect of Al2O3 particles on the density of Fe-Cr metal matrix composite (MMCs) produced through PM route then sintered under hybrid microwave energy. The sample was prepared by mixing the Al2O3 particle in 3D-tubular shaker at six different weight percentage of Fe-Cr matrix started from 5 wt.% to 30 wt.% with 5% in increment. The sintering process was performed under controlled N2 atmosphere in a tubular microwave furnace. Determination of bulk density and porosity was done according to Standard Test Method ASTM B962 – 17, while ASTM E384 was used to determine the microhardness. Assessment of the sample was based on density, porosity, hardness and microstructure evaluation. The result show that incorporating the Al2O3 particle were significantly increase the microhardness, decrease the bulk density and increase the porosity of the in Fe-Cr composite.
本文报道了Al2O3颗粒对复合微波能量烧结制备的Fe-Cr金属基复合材料(MMCs)密度的影响。将Al2O3颗粒在3d管状振动筛中以6种不同重量百分比的Fe-Cr基体进行混合,从5 wt.%到30 wt.%,每增加5%。在管式微波炉中可控氮气气氛下进行了烧结过程。根据标准试验方法ASTM B962 - 17测定体积密度和孔隙率,采用ASTM E384测定显微硬度。对试样进行了密度、孔隙率、硬度和显微组织评价。结果表明:Al2O3颗粒的加入显著提高了Fe-Cr复合材料的显微硬度,降低了堆积密度,增加了孔隙率;
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引用次数: 0
The effects of COVID-19 in the garment industries of Bangladesh and ways to overcome its challenges COVID-19对孟加拉国服装行业的影响以及克服挑战的方法
Saleh Ahmed, Adi A Azmin, Y. Harada
The COVID-19 pandemic is impacting the global economy, which can be considered as a catastrophic situation for the job market and a crisis to the entire world economy. Bangladesh is one of the high-risk countries due to the COVID-19 pandemic and the related social and economic losses. There is a considerable risk that economic stagnation would drive a significant population back into poverty. The aim of this paper is to analyze the effect of COVID19 on the garment industries in Bangladesh, its employees, and the impact on the overall economy of Bangladesh. Publication of scholarly literature, the study of different books, journals, webpages, and the different analyses were taken into consideration to find out the impact of this pandemic.
新冠肺炎疫情正在冲击全球经济,这对就业市场来说是灾难性的,对整个世界经济来说是一场危机。由于新冠肺炎大流行及其相关的社会和经济损失,孟加拉国是高风险国家之一。经济停滞将导致大量人口重新陷入贫困,这是一种相当大的风险。本文的目的是分析covid - 19对孟加拉国服装行业及其员工的影响,以及对孟加拉国整体经济的影响。学术文献的出版、对不同书籍、期刊、网页的研究以及不同的分析都被考虑在内,以找出这次大流行的影响。
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引用次数: 2
DFMA and sustainable design analysis: Optimisation of RC helicopter controller DFMA与可持续设计分析:RC直升机控制器的优化
M. S. Effendi, Z. Shayfull, H. Radhwan, S. Ahmad, Nurul Aiman Thaqifah Roslim, Muhammad Amir Faiz, Muhammad Amir Ashraf, H. Masri
This paper presents the enhancement of product redesign, assembly, and environmental consideration analysis of RC Helicopter Controller throughout Design For Manufacture and Assembly (DFMA) and Sustainability evaluation using SolidWorks@ sustainability software. Computer-Aided Design (CAD) is used to redesign the entire component in minimising the assembly time. Then, the redesigned product will lead to sustainability evaluation. Thus the objective of this study is to mitigate the economic factors of product development as well as environmentally friendly product and social acceptability ways. This product design approach is significant to the quality of the product in terms of functionality and will influence manufacturing utilisation. Therefore this study will show systematisation and analysis manufacturability of product design with a focus on DFMA and environmentally approach.
本文介绍了RC直升机控制器在整个制造和装配设计(DFMA)和使用SolidWorks@可持续发展软件进行可持续性评估的产品再设计,装配和环境考虑分析的增强。计算机辅助设计(CAD)用于重新设计整个部件,以最大限度地减少装配时间。然后,重新设计的产品将导致可持续性评价。因此,本研究的目的是减轻产品开发的经济因素以及环境友好型产品和社会可接受性的方式。这种产品设计方法对产品的功能质量具有重要意义,并将影响制造利用率。因此,本研究将以DFMA和环保方法为重点,展示产品设计的系统化和可制造性分析。
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引用次数: 0
The durability of lightweight concrete against 5% hydrochloric acid solution with various size of expanded polystyrene 轻质混凝土在5%盐酸溶液中与不同尺寸的膨胀聚苯乙烯的耐久性
Saloma Hasyim, S. Nurjannah, Arie Putra Usman, F. S. Putra, M. Hashim
The use of foam and expanded polystyrene (EPS) in concrete can significantly reduce the density of concrete. The composition of lightweight concrete consists of Portland composite cement, expanded polystyrene, water, and foam. The ratio of the composition used is 1:2.75 for cement and aggregate, 1:40 for foaming agent and water, and 0.485 for W/C. The expanded polystyrene sizes used are 1 mm, 2 mm, and 3 mm. All specimens were cured for 28 days. The concrete test results at 28 days provided compressive strengths of 6.64 MPa, 5.53 MPa, 3.73 MPa, and 13.58 MPa, as well as density of 886 kg/m3, 830 kg/m3, 782 kg/m3, and 1,870 kg/m3 for mixtures of LWC-1, LWC-2, LWC-3, and Normal Mortar. The aim of this research was the performance of lightweight concrete with EPS by determining the durability, density, and the compressive strength using a 5% hydrochloric acid (HCl) solution. In the previous studies, the EPS had been heated before mixed. In this study, the EPS had not been heated and directly used in the mixing process. The lightweight concrete with EPS was very potential to reduce structure mass then resulted in a lower earthquake loads on the structures. There were three different conditions of treatment for the specimens that were open room, completely immersing in HCl 5%, and cyclic. The durability of lightweight concrete was determined during 28 and 56 days of immersion in HCl solution to obtain the results of reduced compressive strength and density. The condition III showed the most significant reduction in density and compressive strength at the age of 56 days immersion. The normal mortar has the best durability when compared to all LWCs, with a reduction of density and compressive strength of 14.08% and 32.88%, while the LWC-1 showed the best durability with a reduction in density and compressive strength of 18.41% and 35.44%.
在混凝土中使用泡沫塑料和发泡聚苯乙烯(EPS)可以显著降低混凝土的密度。轻质混凝土的成分包括波特兰复合水泥、膨胀聚苯乙烯、水和泡沫。水泥与骨料的配比为1:2.75,发泡剂与水的配比为1:40,W/C为0.485。使用的膨胀聚苯乙烯尺寸有1mm、2mm和3mm。所有标本均固化28 d。28 d混凝土试验结果显示,LWC-1、LWC-2、LWC-3和普通砂浆混合料的抗压强度分别为6.64 MPa、5.53 MPa、3.73 MPa和13.58 MPa,密度分别为886 kg/m3、830 kg/m3、782 kg/m3和1870 kg/m3。本研究的目的是通过使用5%盐酸(HCl)溶液来确定EPS轻质混凝土的耐久性、密度和抗压强度。在以往的研究中,EPS在混合前都是经过加热的。在本研究中,EPS未被加热,直接用于混合过程。EPS轻量化混凝土在降低结构质量、降低地震荷载方面具有很大的潜力。样品有三种不同的处理条件:开放室、完全浸泡在HCl 5%中、循环处理。测定轻质混凝土在HCl溶液中浸泡28天和56天的耐久性,得到抗压强度和密度降低的结果。条件III在浸泡56天时密度和抗压强度降低最为显著。普通砂浆的耐久性能最好,密度和抗压强度分别降低14.08%和32.88%,而LWC-1的耐久性能最好,密度和抗压强度分别降低18.41%和35.44%。
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引用次数: 0
Rediscovering local ‘third places’ of Kota Bharu, Kelantan Malaysia: The study of Kedai Pati
N. Anuar, Y. M. Faudzi, N. Alwi, S. A. Nasir, M. R. M. Nasir, M. M. Zain
This paper attempts to rediscover the temporalities of Kedai Pati and its unchanging relationship with the old city of Kota Bharu, Kelantan. Much of the existence of this locally renowned ‘third place’ interfaces between work and life due to its direct connection with urban development. Kedai pati (‘pigeon stall’) is said to be part of the locality in Kota Baru township for more than fifty years, providing a distinctive experience of nostalgia. Kedai Pati is perceived as a valuable space for the local working men to informally attend on the regular or irregularly. At present day, Kedai Pati still survives with its signature theatrical-service pantry operation, seller-buyer social setting, that is part of a unique ambience considered as Kelantan’s cultural heritage. Mapping the remaining locations of the kedai pati around the urban settings of current Kota Bharu Town Centre will indicate the strategic foci of nodal gastronomic places for the public to have access to. Information derived from this work can be useful for future planning and development in both urban and rural Malaysian context.
本文试图重新发现可代帕蒂的时间性及其与吉兰丹哥打巴鲁旧城的不变关系。由于与城市发展的直接联系,这个当地著名的“第三地方”的存在很大程度上连接了工作和生活。Kedai pati(“鸽子摊”)据说是哥打巴鲁镇50多年来当地的一部分,提供了一种独特的怀旧体验。可代帕蒂被认为是当地工人定期或不定期参加非正式活动的宝贵场所。时至今日,可代帕蒂仍然保留着其标志性的戏剧服务食品供应业务,卖家-买家的社交环境,这是吉兰丹文化遗产的独特氛围的一部分。将kedai pati的剩余位置绘制在当前Kota Bharu镇中心的城市环境周围,这将表明公众可以进入的节点美食场所的战略焦点。从这项工作中获得的信息对马来西亚城市和农村的未来规划和发展都很有用。
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引用次数: 0
Development of electromagnetic actuator for braille cell 盲文细胞电磁执行器的研制
Muhamad Nizam, S. M. Saad, M. A. Suhaimi, M. Hussein, S. Rahim, Z. Ahmad
Braille system is a universal code for visually impaired people to read and visualize image by using their haptic sense without using their eye. Over the few centuries, with the advent of technology, numerous assistive technologies have been developed and widely accessible for the visually impaired community. However, for developing countries such as Malaysia, educational braille based and current assistive technology for visually impaired people to read and visualize such as electronic braille display still lacking. This is because a piezo bimorph actuator actuates most of the braille cell used in the commercialize braille display. This system not only complex due to arrangement of the piezo strip, but it also expensive to produce a reliable system. Moreover, it’s braille cell also has a limited feature, where it can support to display single-line sentence only due to the arrangement and nature of piezo bimorph. This paper aims to develop an electromagnetic actuator for braille cell, where it can support multiple lines of sentence, cost-effective and has the same performance as commercial braille display. Next, to determine suitable design parameters and evaluates the performance of the fabricated braille cell. An experiment is done with three levels of factors, one for the number of turns and the other is diameter which are 100, 200, and 300 turns and 0.1, 0.3, and 1.0mm. The result shows, regardless of wire diameter for coil, the minimum current required to lift the dot will remain the same for the same number of turns. A final number of turns and diameter selected is 300 turns and 0.1mm and required minimum value of current 0.08A to lift the dot. The study approaches towards the development of braille cell that used alternative actuator, which is an electromagnetic actuator to achieve more compact braille display while able to display multiline sentence.
盲文系统是视障人士在不使用眼睛的情况下,通过触觉来阅读和视觉化图像的通用代码。在过去的几个世纪里,随着技术的出现,许多辅助技术已经被开发出来,并广泛地为视障人士提供服务。然而,对于像马来西亚这样的发展中国家来说,目前以盲文为基础的教育和辅助视障人士阅读和视觉化的技术,如电子盲文显示器仍然缺乏。这是因为在商业化的盲文显示器中使用的大部分盲文单元是由压电双晶片驱动器驱动的。该系统不仅由于压电带材的布置复杂,而且生产可靠的系统成本也很高。此外,它的盲文细胞也有一个有限的特点,由于压电双晶片的排列和性质,只能支持单行句子的显示。本文旨在开发一种用于盲文细胞的电磁致动器,它可以支持多行句子,具有成本效益,并具有与商用盲文显示器相同的性能。其次,确定合适的设计参数,并评估所制作的盲文细胞的性能。实验采用三种水平的因素,一种是匝数,另一种是直径,分别是100、200、300匝和0.1、0.3、1.0mm。结果表明,无论线圈的线径如何,对于相同的匝数,提升点所需的最小电流将保持相同。最终选择的匝数和直径为300匝和0.1mm,需要的最小电流值为0.08A来提升点。本文研究了采用电磁致动器的替代致动器开发盲文单元,以实现更紧凑的盲文显示,同时能够显示多行句子。
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引用次数: 1
Preference of consumer toward halal base product in vending machine in Selangor 消费者对雪兰莪州自动售货机清真基础产品的偏好
A. Ariff, H. Zulhazman, M. Nursalwani, A. M. Amizi
Vending machines have been developed since 1880s and has been continued to be customized to suit the taste and needs of consumers. Vending machines serves automatically, with a specific currency. Vending machines has become a multipurpose machine that not only able to serve food and snacks, but also serve ready to go meal and some are also equipped with microwave to heat the food and can be readily eaten right after purchase. Suppliers are becoming more efficient in placing vending machines so that consumers can have access to the particular vending machines. Globalization has brought Islamization with Vending machines. Hence many halal-based products are available, with the innovation of Halal vending machine, competing with Kosher-based product. Japan, Brunei and Malaysia are the pioneers that open the market as to the growing numbers of Muslim consumers. Fake logos and too many certified Halal logos have done nothing but increasing the doubt among the Muslim consumers and community. This study uses Knowledge Attitude and Practice (KAP) Survey Model to keep track of the behavior of the consumer. (KAP) Survey Model questionnaire was distributed to 100 consumers to study the behavior and perception towards vending machines that sell Halal-based products.
自19世纪80年代以来,自动售货机一直被开发出来,并不断被定制以适应消费者的口味和需求。自动售货机会自动提供服务,并提供特定的货币。自动售货机已经成为一种多用途的机器,不仅可以提供食品和零食,还可以提供现成的饭菜,有些还配备了微波炉来加热食物,可以在购买后立即食用。供应商在放置自动售货机方面变得越来越高效,这样消费者就可以使用特定的自动售货机。全球化带来了自动售货机的伊斯兰化。因此,随着清真自动售货机的创新,许多以清真为基础的产品可用,与以犹太洁食为基础的产品竞争。日本、文莱和马来西亚是向越来越多的穆斯林消费者开放市场的先行者。假标识和太多的认证清真标识只会增加穆斯林消费者和社区的疑虑。本研究采用知识态度与行为(Knowledge Attitude and Practice, KAP)调查模型来追踪消费者的行为。(KAP)调查模型问卷向100名消费者发放,研究消费者对销售清真产品的自动售货机的行为和认知。
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引用次数: 1
Product defect prediction model in food manufacturing production line using multiple regression analysis (MLR) 基于多元回归分析的食品生产线产品缺陷预测模型
I. N. Illa, T. C. Sin, R. Fadzli, I. Safwati, A. Rosmaini, M. Fathullah
This paper aims to develop an improved general mathematical model by focusing on human factors variables that related to the product defect in the manufacturing production line. This is because many studies found that almost 40% of total defects resulted from the operator error and the defects are usually not obvious and neglected. The objective to have defect prediction mathematical model to satisfy as early quality indicator of the manufacturing flow production line and assist the quality control team in manufacturing industries. Thus, the human factor variables will be investigate thoroughly and final model can be used to predict product defect on the line to improve product quality. Product defects quantity are identified and analyzed to determine the potential predictors for developing the mathematical model. A case study is offered that illustrates in a spice packaging semi-automated production line the effect that complexity variables have on assembly quality. By using Minitab, Multiple Regression analysis is conducted to model the relationship between the input variables towards response variables. From the analysis, the predicted data showed reasonable correlation with the observed data improved with adjusted R-Sq from 2.6% to 7.9%. Hence, the regression equation obtain is selected to be the prediction mathematical model for defects based on human factor input variables.
本文旨在通过关注与制造生产线中产品缺陷相关的人为因素变量,建立一种改进的通用数学模型。这是因为许多研究发现,几乎40%的缺陷是由操作人员的错误造成的,而这些缺陷通常不明显,被忽视了。目的建立缺陷预测数学模型,作为制造流程生产线的早期质量指标,辅助制造行业的质量控制团队。从而对人为因素变量进行深入的研究,最终的模型可以用于在线上预测产品缺陷,从而提高产品质量。对产品缺陷数量进行识别和分析,以确定潜在的预测因子,从而建立数学模型。以香料包装半自动化生产线为例,分析了复杂性变量对装配质量的影响。利用Minitab进行多元回归分析,对输入变量与响应变量之间的关系进行建模。从分析来看,预测数据与观测数据具有合理的相关性,调整后的R-Sq从2.6%提高到7.9%。因此,选择得到的回归方程作为基于人为因素输入变量的缺陷预测数学模型。
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引用次数: 0
Development of Al-Quran sign language classification based on convolutional neural network 基于卷积神经网络的古兰经手语分类研究进展
Muhamad Nizam, S. M. Saad, M. A. Suhaimi, M. Dzahir, S. Rahim, M. Dzahir
Sign language is the main form of communication used by deaf people. Most of their activities, like; speaking, reading, and learning, involved sign languages. For reading Al-Quran, deaf people used Arabic sign language to read the ayah Al-Quran. For them, assistive technologies to aid them in the process of learning and teaching of Al-Quran is very important, since the traditional method is very difficult and challenging. One of the reasons is that, traditionally, teachers need to know Arabic Sign Languages (ArSL) first in order to teach them to learn Al-Quran. Currently, assistive technology, it still considered to be relatively new and not well developed. In Malaysia and Indonesia, most of the developed technologies are mobile app, and web-based device, which both of them required continuous internet connection and only suitable for personal used. Previous research on assistive technologies can be classified into two types of devices. First, a sensor-based device, and second is the image-based device. Both of them have their advantages and disadvantages. For this project, the only image-based device is focused since the scope of this project is limited to supervised machine learning (Convolution neural network, CNN) that developed with accuracy above 80% in training and testing. The accuracy of CNN model can be explained based on the resulting pattern obtained from the training and testing. Next, the resulting pattern can be described as overfitting, underfitting, or optimum. This project shows that, with the appropriate tuning of hyperparameters based on the resulting pattern, the accuracy of the model can be improved. This CNN model is developed from scratch through trial and error tuning method since there are no formal techniques. Lastly, the CNN model is converted into a Tensorflow Lite format, which can ready to be integrated with mobile applications.
手语是聋哑人使用的主要交流形式。他们的大部分活动,比如;说话、阅读和学习都涉及到手语。为了阅读《古兰经》,聋哑人用阿拉伯手语阅读《古兰经》。对他们来说,辅助技术帮助他们在学习和教授古兰经的过程中是非常重要的,因为传统的方法非常困难和具有挑战性。其中一个原因是,传统上,教师需要先了解阿拉伯手语(ArSL),才能教他们学习《古兰经》。目前,辅助技术还被认为是比较新的,没有得到很好的发展。在马来西亚和印度尼西亚,大多数发达的技术是移动应用程序和基于网络的设备,它们都需要持续的互联网连接,只适合个人使用。以往对辅助技术的研究可以分为两类设备。首先是基于传感器的设备,其次是基于图像的设备。两者都有各自的优点和缺点。对于这个项目,唯一的基于图像的设备是专注的,因为这个项目的范围仅限于监督机器学习(卷积神经网络,CNN),在训练和测试中准确率超过80%。CNN模型的准确性可以通过训练和测试得到的结果模式来解释。接下来,得到的模式可以描述为过拟合、欠拟合或最优。该项目表明,通过基于结果模式的适当调优超参数,可以提高模型的准确性。由于没有正式的技术,这个CNN模型是通过试错调整方法从零开始开发的。最后,将CNN模型转换为Tensorflow Lite格式,可以随时与移动应用程序集成。
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引用次数: 1
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