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Occupational safety and health at metal casting company 金属铸造公司的职业安全与健康
Pub Date : 2022-09-05 DOI: 10.21831/jeatech.v3i2.52482
Arinda Soraya Putri, Usamah Afiq Nuruddin
A cast metal company has become a vital industrial sector. It creates various kinds of products like cages, souvenirs, kitchen appliances, ashtrays, ship joint shafts, hotplates, fitness equipment, manual water pumps, pendulum scales, garden benches, lamp posts, interior lights, wall lamps, grills, manhole, and other types of equipment to deal with workplace safety. However, some workers ignore the various potential hazards during the production process. They are more concerned with comfort aspects than safety. This research enhances occupational safety and health (OSH) aspects through Hazard Identification Risk Assessment Risk Control (HIRARC). It is done by identifying potential hazards in the workplace and making a hazard risk assessment to determine appropriate controls for reducing the hazard risks. Based on hazard identification and risk assessment, the results show 11 high, 2 medium-risk, and 1 low-risk levels. The risk control proposals are in the form of training on the importance of OSH among employees/workers. It also raises awareness to provide work safety facilities and establish policies related to OSH.
铸造金属公司已成为一个重要的工业部门。生产各种笼、纪念品、厨具、烟灰缸、船舶接头轴、电炉、健身器材、手动水泵、摆秤、花园凳、灯柱、室内灯、壁灯、烤架、人孔等各类安全生产设备。然而,一些工人忽视了生产过程中的各种潜在危险。他们更关心舒适方面而不是安全。本研究通过危害识别、风险评估和风险控制(HIRARC)来加强职业安全与健康(OSH)。它是通过识别工作场所的潜在危害,并进行危害风险评估,以确定适当的控制措施,以减少危害风险。基于危害识别和风险评价结果,有11个高风险等级,2个中风险等级,1个低风险等级。风险控制建议的形式是对员工/工人进行关于职业安全与健康重要性的培训。它还提高了提供工作安全设施和制定与职业安全卫生有关的政策的意识。
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引用次数: 1
The effect of the MIG welding technique on the tensible strength results for cross members making in electric cars with ST 60 materials 研究了MIG焊接工艺对st60材料电动汽车横梁抗拉强度的影响
Pub Date : 2022-09-02 DOI: 10.21831/jeatech.v3i2.51167
Mahendra Cahya Nugraha, Samsudi Samsudi
This study aims to determine the chemical composition and tensile strength of ST60 materials in MIG (Metal Inert Gas) welding for the manufacture of electric car cross members and to reveal the effect of the welding technique on the welding results. The material was medium carbon steel with a thickness of 5 mm for each. The welding was done with MIG welding using a single 90-degree V joint with a current of 150 A. The welding techniques were straight, circular, and zigzag. The results showed a significant effect in circular welding with the largest average of 152,314 kg/mm2, while straight welding showed the lowest average tensile strength of 373.793 kg/mm2. The circular welding also had the strength value with the highest tensile strength of 526,107 kg/mm2.
本研究旨在确定用于制造电动汽车横梁的金属惰性气体(MIG)焊接中ST60材料的化学成分和抗拉强度,并揭示焊接工艺对焊接结果的影响。材料为中碳钢,每片厚度为5mm。焊接是用一个90度V接头用150a电流的MIG焊接完成的。焊接工艺有直的、圆的和之字形的。结果表明,圆形焊接的平均抗拉强度最大,为152,314 kg/mm2,而直焊的平均抗拉强度最低,为373.793 kg/mm2。圆形焊接的抗拉强度最高,达到526,107 kg/mm2。
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引用次数: 0
Study of Soft Story Response of Typical Building of NBC NBC典型建筑软层反应研究
Pub Date : 2022-09-01 DOI: 10.24203/ajet.v10i3.7028
Jeevan Gwachha
Construction of building omitting an infill wall mostly in ground floor and other floors has led a building to face a soft story failure mechanism. This omission of infill wall is for commercial purposes and parking of vehicles in ground floor. In this study, study on the behavior of the structure is done when a soft story happens in different floor levels. A building explained as per NBC 201 and NBC 205 is taken into consideration. Soft story is assigned in all floors to study the responses separately. An equivalent diagonal strut is assigned to the structure to account the consideration of infill wall. Non-linear hinges are assigned to structural members. Different parametric study is performed in terms of displacement, story drift, time period, formation of hinges, performance point, and capacity curve to compare the behavior of the structure. Linear static and non-linear static (Pushover analysis) analysis is performed to evaluate 4 different models. Modal analysis is performed to obtain time period of different models. The time period of bare frame, ground floor soft story, first floor soft story and second floor soft story using modal analysis is 0.65, 0.49, 0.47 and 0.29 respectively. Pushover analysis is performed to obtain pushover curve of different models forming different non-linear hinges in multiple steps of analysis. Step 1, 4, 7 and 10 were analyzed and hinges from basic to collapse prevention has formed. Story drift of bare frame of all story has been compared to the story drift of buildings having soft story in ground, first and second floor. Comparing variation of story drift for ground, first and second floor between bare frame and ground floor soft story model, the values show 13%, 82% and 85%. The variation of same between bare frame and first floor soft story shows 78%, 20%, 81% while the variation between bare frame and second floor soft story shows 97%, 97%, 21%. Additional, a multiplication factor has been introduced to compare the value of factor provided by IS 1893:2002. According to IS 1893:2002, the value should have been 2.5, but the value varies for 3 different cases. It varies from 1 to 1.16.
由于建筑主要在底层和其他楼层省略了填充墙,导致建筑面临软层破坏机制。省略填充物墙是为了商业用途和在地面停放车辆。在本研究中,研究了不同楼层发生软层时结构的行为。根据NBC 201和NBC 205解释的建筑被考虑在内。各楼层均设置软层,分别研究反应。考虑到填充墙的存在,在结构上设置了等效的对角支撑。非线性铰链被分配到结构构件上。在位移、层间漂移、时间周期、铰的形成、性能点和容量曲线等方面进行了不同的参数研究,以比较结构的性能。对4种不同的模型进行了线性静态和非线性静态(Pushover分析)分析。进行模态分析,得到不同模型的时间周期。模态分析裸框架、一层软层、一层软层和二层软层的工期分别为0.65、0.49、0.47和0.29。进行推覆分析,得到不同模型形成不同非线性铰的推覆曲线。对步骤1、4、7、10进行了分析,形成了从基础到防塌的铰链。将各层裸框架的层间漂移与一、二层软层建筑的层间漂移进行了比较。对比裸框架与底层软层模型的一、二层楼层漂移变化,分别为13%、82%和85%。裸框架与一层软层的差异分别为78%、20%、81%,与二层软层的差异分别为97%、97%、21%。此外,还引入了乘法因子来比较IS 1893:2002提供的因子值。根据IS 1893:2002,这个值应该是2.5,但是这个值在3种不同的情况下是不同的。取值范围是1 ~ 1.16。
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引用次数: 0
Investigating Shoreline Migration due to Sand Mining in Some Communities of Yenagoa Local Government Area using GIS and Remote Sensing 基于GIS和遥感的叶纳戈阿地方政府区部分社区采砂岸线迁移调查
Pub Date : 2022-09-01 DOI: 10.24203/ajet.v10i3.7011
A. Opukumo, A. O. Oki
This study investigates the impact of sand mining activities on some host communities within Yenagoa. The mining activities are considered to include the whole chain, from the dredging (mechanical or manual) to the end user (reclamation, filling, or construction). Impacts are assessed under categories ranging from environmental to infrastructural and ground damage. The methods of study include physical onsite observations and quick field assessments of soil type in areas directly connected with the river sand mining activities, and use of GIS and remote sensing techniques. Results show a direct link between the sand mining activities and damages to infrastructure, the natural environment, and shoreline migration. There is a steady increase in bare-land (i.e., land cover removal) and river expansion with increasing mining sites and dumpsites from 1990 to 2021.
本研究调查了采砂活动对叶纳戈阿一些收容社区的影响。采矿活动被认为包括整个链条,从疏浚(机械或人工)到最终用户(填海,填充或施工)。对影响的评估分为环境、基础设施和地面破坏等类别。研究方法包括在与河砂开采活动直接相关的地区进行实地观察和快速实地评估土壤类型,以及使用地理信息系统和遥感技术。结果表明,采砂活动与基础设施、自然环境和海岸线迁移的破坏有直接联系。从1990年到2021年,随着采矿地点和垃圾场的增加,裸地(即土地覆盖清除)和河流扩张稳步增加。
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引用次数: 0
Strategic alignment maturity assessment on conventional bank’s information technology 传统银行信息技术战略一致性成熟度评估
Pub Date : 2022-08-31 DOI: 10.21831/jeatech.v3i2.48859
N. B. Puspitasari, S. Saptadi, A. Rahmadi
Strategic alignment between information technology and business strategy is needed to achieve an organization's performance excellence. Bank X is a bank that focused on serving the micro, small and medium enterprise (MSME) market segments. Bank X provided a variety of banking services which are generally grouped into activities of raising and distributing funds. Banking services are carried out conventionally. At the end of 2019, Bank X was acquired by an investment holding company. The objective of the acquisition is to develop Bank X into a bank with a digital platform. This study aims to measure the maturity level of strategic alignment of information technology with business strategies at Bank X. A conceptual framework is developed based on relevant literature. The level of strategic alignment is measured based on Luftman's Strategic Alignment Maturity Model (SAMM) framework. The results of the analysis show that the strategic alignment maturity level of Bank X is at level 3. Several recommendations are given to improve the maturity level of Bank X's strategic alignment.
为了实现组织的卓越绩效,需要信息技术和业务战略之间的战略一致性。X银行是一家专注于服务中小微企业(MSME)细分市场的银行。X银行提供各种银行服务,这些服务一般分为筹集和分配资金的活动。银行服务按惯例进行。2019年底,X银行被一家投资控股公司收购。此次收购的目的是将X银行发展成为一家拥有数字平台的银行。本研究旨在衡量x银行信息技术与业务战略战略契合的成熟度水平。战略结盟的水平是基于Luftman的战略结盟成熟度模型(SAMM)框架来衡量的。分析结果表明,X银行的战略结盟成熟度水平为第3级。为提高X银行战略一致性的成熟度水平,提出了若干建议。
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引用次数: 1
Applied energy and mass balance optimization re-engineering: case on Industri Gula Glenmore, Ltd. 应用能量与质量平衡优化再造:以工业古拉格伦摩有限公司为例
Pub Date : 2022-08-31 DOI: 10.21831/jeatech.v3i2.52403
Saptyaji Harnowo, A. Hidayat, Ramit Gupta
The Glenmore Sugar Industry, Ltd. is designed for 8000 TCD production or 273 TPH. The process required approximately 136 TPH based on the Steam on Cane (SoC) 50%. As the factory's primary input, Sugar Cane cannot supply 8000 TCD Factory Capacity, so 6000 TCD is chosen as an alternative. After commissioning, a lack of steam for servicing the process occurred because the Turbine at full load required 7,6 Kg/kWh. Desuperheater supports the additional steam for the process, which is only 20 TPH. Meanwhile, the steam from the turbine supplies 84 TPH. The need for 32 TPH must be solved, and a specific strategy should be prepared. The Applied Thermodynamics Re-Engineering is a potential method that can be applied in which the findings show that the deficit of 32 TPH steam for the process can be solved precisely.
格伦莫尔糖业有限公司的设计产量为8000 TCD或273 TPH。该过程需要大约136 TPH,基于蒸汽在甘蔗(SoC) 50%。甘蔗作为工厂的主要投入,无法提供8000 TCD factory Capacity,所以选择6000 TCD作为替代。在调试后,由于涡轮机在满负荷时需要7,6 Kg/kWh,因此缺少用于维修过程的蒸汽。减温器支持该过程的额外蒸汽,仅为20tph。同时,汽轮机的蒸汽供给84 TPH。必须解决对32名TPH的需求,并应制定具体战略。应用热力学再工程是一种可行的方法,研究结果表明,该方法可以精确地解决32 TPH蒸汽的缺陷。
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引用次数: 0
Interactive Learning Application for Kindergarten Education Using Mobile Based Augmented Reality 基于移动增强现实的幼儿园教育互动学习应用
Pub Date : 2022-06-10 DOI: 10.51983/ajeat-2022.11.1.3301
S. Shargunam, G. Rajakumar
This paper presented about the augmented reality learning application for kindergarten education. This paper explains how the learning application is developed and used to increase the motivation and engagement of the children. Education is transferred from traditional way of learning to the use of immersive, interactive technologies. Game based learning environment is very useful for children to learn very efficiently. Marker based Augmented Learning application is developed using Unity 3D game engine and hardware used for viewing is mobile phone. Augmented learning application consists of two main courses - English, Mathematics. In every course, application is developed in two modes - learn and play. After learning each module, children are tested using the play mode. Children are able to interact with the 3D objects and animations, audio visuals are used for enhancement.
本文介绍了增强现实学习在幼儿园教育中的应用。本文解释了如何开发和使用学习应用程序来提高孩子们的积极性和参与度。教育从传统的学习方式转变为使用沉浸式互动技术。以游戏为基础的学习环境对孩子们的学习非常有用。基于标记的增强学习应用程序是使用Unity 3D游戏引擎开发的,用于观看的硬件是手机。强化学习应用包括英语、数学两门主要课程。在每门课程中,应用程序以两种模式开发-学习和游戏。在学习完每个模块后,孩子们将使用游戏模式进行测试。孩子们能够与3D物体和动画互动,音频视觉用于增强。
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引用次数: 0
Effect of Different Drying Methods on Antioxidant Activity and Availability of Phytochemicals in Leaves of Costus speciosus, Coccinia grandis and Gymnema sylvestre 不同干燥方式对木香、大球虫和金缕藤叶片抗氧化活性及植物化学物质有效性的影响
Pub Date : 2022-06-10 DOI: 10.51983/ajeat-2022.11.1.3310
Colombage Maheshika Peries, Seneviratne Navarthne, Janaka Wijesinghe, Amila Priyashantha Henagamage, R. Coorey
Drying is an important method for preserving phytochemicals in plant materials though the stability is altered with the type of drying method. This study aimed at evaluating the effectiveness of different drying methods on antioxidant activity and phytochemical availability in leaf ethanolic extracts of Costus speciosus, Coccinia grandis, and Gymnema sylvestre. Plant leaves of the selected species were subjected to shade drying at room temperature (25 + 5℃), oven drying at 45 ℃ and freeze-drying methods. The extracts were obtained by a maceration method with 95% ethanol. Obtained ethanolic extracts were analyzed for antioxidant activity in terms of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical scavenging activity, total reducing power and total antioxidant capacity. Phytochemical availability was determined qualitatively and quantitatively in the extracts. All the plant species and drying methods had a significant difference (p<0.05) for the tested antioxidant activities. Among the drying techniques, the freeze-drying method was more effective to preserve the antioxidant compounds and phytochemicals compared to oven drying and shade drying. The lowest antioxidant activity and phytochemical availability were shown by the leaves subjected to oven drying at 45 ℃. The freeze-dried leaves of C. speciosus ethanolic extract demonstrated the best radical scavenging activity for DPPH and ABTS assays with IC50 values of 57.27 + 2.08 μg/ml, 21.86+ 3.55 μg/ml respectively. Furthermore, the highest content of total phenolics (82.88+2.31 mg GAE/g), tannins (9.58 +2.71mg TAE/ g), terpenoids (45.10+3.46 %), and alkaloids (19.37+3.54%) were recorded in C. speciosus among all dried leaves from the selected species. It can be concluded that the freeze-dried leaves of all plant species showed a higher value of antioxidant activity and phytochemical availability and that can be potentially used for the production of pharmaceuticals and novel functional foods.
干燥是保存植物材料中植物化学物质的重要方法,但干燥方式的不同会改变其稳定性。本研究旨在评价不同干燥方式对木香、大球虫和木门叶乙醇提取物抗氧化活性和植物化学物质有效性的影响。对所选植物叶片分别采用室温(25 + 5℃)阴晒、45℃烘箱干燥和冷冻干燥三种方法进行研究。提取液采用95%乙醇浸渍法。从2,2-二苯基-1-吡啶肼(DPPH)自由基清除能力、2,2-氮基-双-(3-乙基苯并噻唑啉-6-磺酸(ABTS)自由基清除能力、总还原能力和总抗氧化能力等方面分析所得乙醇提取物的抗氧化活性。对提取物的植物化学有效性进行了定性和定量测定。不同植物种类和不同干燥方式的抗氧化活性差异显著(p<0.05)。在干燥技术中,冷冻干燥比烘箱干燥和遮荫干燥更能有效地保存抗氧化成分和植物化学物质。45℃烘箱干燥的叶片抗氧化活性和植物化学有效性最低。冻干叶片对DPPH和ABTS自由基的清除活性最好,IC50值分别为57.27 + 2.08 μg/ml和21.86+ 3.55 μg/ml。其中,总酚(82.88+2.31 mg TAE/ g)、单宁(9.58 +2.71mg TAE/ g)、萜类(45.10+ 3.46%)和生物碱(19.37+3.54%)含量最高。综上所述,所有植物的冻干叶片均显示出较高的抗氧化活性和植物化学有效性,可用于生产药品和新型功能食品。
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引用次数: 1
Application of Artificial Intelligence in Applied Biology and Health Sciences 人工智能在应用生物学和健康科学中的应用
Pub Date : 2022-06-10 DOI: 10.51983/ajeat-2022.11.1.3305
Binoy Kurian
In modern world, artificial intelligence will substitute or magnify human competency in Applied Biology and Health Sciences. AI is the cognitive brilliance manifested by machines or software. AI is growing as an outstanding field in information technology as it enriched the mankind in many circumstances. The application of AI across different disciplines promises an alternative sustainable solution for all human problems. AI is developed in last 10 years as a life changer; when it stated solving human problems easily. This includes solving protein architecture, drug discovery and design, drug recycling, drug safety, diagnose patients, to choose a suitable crop, to determine when to fertilize crops, to avoid adulteration of seeds, to diagnose the crop infections, for proper application of pesticides and herbicides, to identify and removal of weeds, to identify natural ripening of fruits, for the detection of food nutrient value, agri-products for the health and weather forecasting.
在现代世界,人工智能将取代或放大人类在应用生物学和健康科学方面的能力。人工智能是机器或软件表现出的认知能力。人工智能在许多方面丰富了人类,正在成为信息技术领域的一个突出领域。人工智能在不同学科的应用有望为所有人类问题提供一种可持续的替代解决方案。人工智能是在过去10年发展起来的,它改变了人们的生活;当它说很容易解决人类问题的时候。这包括解决蛋白质结构、药物发现和设计、药物回收、药物安全、诊断患者、选择合适的作物、确定何时给作物施肥、避免种子掺假、诊断作物感染、正确使用农药和除草剂、识别和清除杂草、识别水果自然成熟、检测食品营养价值、农产品健康和天气预报。
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引用次数: 0
An Overview on Cyber Crime and Cyber Security 网络犯罪与网络安全综述
Pub Date : 2022-06-10 DOI: 10.51983/ajeat-2022.11.1.3309
Bhumika Tuli, Santosh Kumar, N. Gautam
Loss of information through online services is called a “footprint of cybercrime”. So the topic that we will discuss is Cyber Crime and Cyber Security. It is an important part of the information technology field. We all know that cyber crime is increasing day by day, and the government also takes measures to stop this, but it’s not dying from it’s root. In this research paper, we will discuss about the different phases of cyber crime in today’s time and the negative effects tolerated by people due to cybercrime. There are so many financial loses hanging over from heavy engagement in cyber crimes that have been discussed below. This paper also consists of topics related to cyber security, which provides safety to users. Overall, this article gives an intensive overview regarding cyber crime, the work of criminals and the cyber security and because of it how to prevent the cybercrime and make it secure, as new technology is there that comes up with new ideas to protect human life.
通过在线服务丢失的信息被称为“网络犯罪的足迹”。今天我们要讨论的话题是网络犯罪和网络安全。它是信息技术领域的重要组成部分。我们都知道,网络犯罪日益增加,政府也采取措施来阻止这一点,但它并没有从根源上消失。在这篇研究论文中,我们将讨论网络犯罪在当今时代的不同阶段,以及人们因网络犯罪而容忍的负面影响。大量的网络犯罪导致了大量的经济损失,下文将对此进行讨论。本文还包括与网络安全相关的主题,为用户提供安全保障。总的来说,这篇文章给出了一个关于网络犯罪,犯罪分子的工作和网络安全的密集概述,因为它如何预防网络犯罪,使其安全,因为新技术出现了新的想法来保护人类的生命。
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引用次数: 1
期刊
Asian Journal of Engineering and Applied Technology
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