Journal of Engineering and Sustainable Development最新文献_第9页

ENVIRONMENTAL SIGNIFICANCE OF FOULING ON THE CRUDE OIL FLOW. A COMPREHENSIVE REVIEW 污染对原油流动的环境意义。全面回顾

Journal of Engineering and Sustainable Development Pub Date : 2023-05-01 DOI: 10.31272/jeasd.27.3.3

Zaid Abdulhussein, Z. Al-Sharify, Mohammed Alzuraiji, Helen Onyeaka

引用次数: 2

CONTROLLING WATER LEVEL BY USING MODIFIED MODEL FREE ADAPTIVE CONTROLLER 用改进的无模型自适应控制器控制水位

Journal of Engineering and Sustainable Development Pub Date : 2023-05-01 DOI: 10.31272/jeasd.27.3.7

Y. A. Mohammed, Ekhlas H. Karam, Nahida N. Kadhim

引用次数: 0

Cd+2 SORPTION FROM AQUEOUS SOLUTION USING ROSEMARY PLANT: PERFORMANCE AND ISOTHERM STUDY 玫瑰植物对水溶液中Cd+2的吸附性能及等温性质研究

Journal of Engineering and Sustainable Development Pub Date : 2023-05-01 DOI: 10.31272/jeasd.27.3.10

Eman Najih Mohsen, Tamara K. Hussien, Nidaa A. Jasim

引用次数: 1

ALLOCATION OF HYBRID COMPOSITE MATERIALS IN FRICTION DISC CLUTCHES 摩擦片式离合器中混合复合材料的配置

Journal of Engineering and Sustainable Development Pub Date : 2023-05-01 DOI: 10.31272/jeasd.27.3.5

Khuder N. Abed, Iman M. Naemah, Saad T. Faris

{"title":"ALLOCATION OF HYBRID COMPOSITE MATERIALS IN FRICTION DISC CLUTCHES","authors":"Khuder N. Abed, Iman M. Naemah, Saad T. Faris","doi":"10.31272/jeasd.27.3.5","DOIUrl":"https://doi.org/10.31272/jeasd.27.3.5","url":null,"abstract":"This study explains the design of a single-plate clutch using experimental measurements. The ratios of materials used to make the samples were 34g of Kevlar fiber (aramid 49 type), 150g of epoxy-type Sikadur-52, 10g of iron powder, and 10g of graphite powder. The three different sample types were made as laminates and cut using water cutter machinery according to the ASTM standard for each test. The following procedures were taken: The prepared mold was created first. Epoxy and the hardener were mixed in a 2:1 ratio. After that, the mixture was stirred well for a sufficient period of time. Then a quantity of the epoxy mixture was placed in the mold, and Kevlar fibers were placed in layers. The following ratios were used to create three samples: Sample 1 (34 g of Kevlar fiber, 150 g of epoxy), Sample 2 (34 g of Kevlar fiber, 150 g of epoxy, 10 g Fe), and Sample 3: Kevlar fiber (34 g), graphite (10 g), epoxy (150 g), and iron (10 g). The following facts have been found: When Kevlar fiber (aramid 49 type) was used at a weight of 34g for all samples, the best performance was achieved by hybrid composite sample3, which has the highest values (modulus of elasticity and higher wear resistance) in comparison to the other two composite samples (sample2 and sample1). In comparison to composite sample 1, the hybrid composite samples 2, and 3 have the highest value. (Tests for hardness).","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43897428","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

DEVELOPMENT OF A REGRESSION MODEL TO FORECAST AIR TRAVEL DEMAND AT BAGHDAD INTERNATIONAL AIRPORT 巴格达国际机场航空旅行需求预测回归模型的建立

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.10

Rawaa S. Albayati, Raquim N. Zehawi

{"title":"DEVELOPMENT OF A REGRESSION MODEL TO FORECAST AIR TRAVEL DEMAND AT BAGHDAD INTERNATIONAL AIRPORT","authors":"Rawaa S. Albayati, Raquim N. Zehawi","doi":"10.31272/jeasd.27.2.10","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.10","url":null,"abstract":"The civil aviation demand forecast is a carefully formed perspective for airport system activities. Its main use is to predict possible needs for the planning and financial management processes for air carriers and civil aviation authorities. It is vital to conduct frequent analyses and projections of demand in order to meet their customers' expectations by balancing supply and demand and staying abreast of the ever-changing aviation industry. The purpose of this paper is to establish a mathematical relationship between the socioeconomic explanatory factors such as (population, Gross Domestic Product (GDP), consumption expenditure, rate of exchange, industry, imports, and exports) and activities (passenger movements and aircraft operations) at Baghdad International Airport in order to develop an econometric model. The required data had been collected for the past ten years. Eight models were developed depending on one or more of the explanatory variables using SPSS software, and they were then subjected to cross-comparison to see which model was more robust. According to the findings of the statistics, the gross domestic product, population size, and consumption expenditure are the most appropriate explanatory variables that have a significant impact on these activities, where they had a high R2 and F-statistics value equal to 90% and 73.442, respectively, for the model of air passengers and GDP and 90% and 48.737 for the model of flight operations and GDP.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48160844","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 OF NEW COMPOUND RECONFIGURABLE MICROSTRIP ANTENNA FOR C AND KU BANDS APPLICATIONS 一种适用于C和KU频段的新型复合可重构微带天线的设计

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.4

Mushreq Al-Tamimi, Raad Hamdan Thaher

{"title":"DESIGN OF NEW COMPOUND RECONFIGURABLE MICROSTRIP ANTENNA FOR C AND KU BANDS APPLICATIONS","authors":"Mushreq Al-Tamimi, Raad Hamdan Thaher","doi":"10.31272/jeasd.27.2.4","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.4","url":null,"abstract":"A compound reconfigurable microstrip antenna has been analyzed and designed using switching a PIN diode to switch between different modes of operating frequencies as well as radiation pattern directions. In this paper, computer simulation technology (CST) software 2020 has been used. Due to the complex calculation of the circular microstrip patch antenna, the proposed design has reduced the complexity by using a structure that is compact, easy to fabricate, cheap to produce, and uses only one PIN diode, while maintaining peak antenna performance. The suggested design is appropriate to operate in two states conditional on biasing the PIN diode. The reconfigurable patch of 31.16 mm × 27.04 mm has a compact size with 1.6 mm of thickness. It functions in both the C band at 7.1 GHz with a shift of radiation pattern direction to 4 degrees and in the Ku band at 12.5 GHz with a shift of radiation pattern direction to 28 degrees in state 2 where the PIN diode is on the state. In addition, the ON and OFF state of the switching PIN diode has been extensively investigated by changing the resistance, inductance, and capacitance values for optimal antenna performance. The proposed reconfigurable circular patch can be implemented to operate in modern communication such as Radio navigation and earth exploration, space operation, earth-to-space satellite communication, 5G applications, and Wireless-Fidelity 7.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44434661","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

ADOPTING A SUSTAINABLE URBAN DESIGN TO IMPROVE THERMAL COMFORT IN AN ARID CLIMATE 采用可持续的城市设计以提高干旱气候下的热舒适性

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.2

S. Ridha, S. Ginestet, S. Lorente

{"title":"ADOPTING A SUSTAINABLE URBAN DESIGN TO IMPROVE THERMAL COMFORT IN AN ARID CLIMATE","authors":"S. Ridha, S. Ginestet, S. Lorente","doi":"10.31272/jeasd.27.2.2","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.2","url":null,"abstract":"Greenery strategies and shaded pedestrian passages have become requirements for designing smart cities in developed countries. One of the most difficult challenges for designers is designing cities in hot and arid climates while maintaining a proper level of outdoor thermal comfort. The designers focus on creating a comfortable climate for people throughout the afternoon under the hot sun, particularly in countries where summer temperatures rise excessively for more than seven months per year, as in Iraq. This study compares two Baghdad cities: Haifa Street, which was built in 1984 on a Western design pattern, and the second city, which the researchers designed according to the requirements of construction in an arid climate, such as street and building orientation, aspect ratio, sky view factor, the influence of courtyards, and the role of albedo. The second city is planned to cover the same total area as the first. The results of the two cities were compared and analyzed using ENVI-met software. To conduct a comparison between the two cities on a typical summer day, two indices, PMV and Tmrt, were used. The results showed that the proposed new city design reduced Tmrt and PMV, contributing to improved thermal comfort. The proposed design reduced the Tmrt value in the model by 10.5°C in proportions of 90% of the total urban area. Furthermore, the suggested design offers superior thermal values on a typical summer day than Haifa Street.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46346172","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: 2

CHARACTRAZATION OF BIO-CHAR PRODUCED FROM SESBANIA STEMS (SESBANIA GRANDIFLORA) 芝麻茎生物炭的特性研究

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.5

Balsam Mahmood Shaker, Raad M. Fenjan

{"title":"CHARACTRAZATION OF BIO-CHAR PRODUCED FROM SESBANIA STEMS (SESBANIA GRANDIFLORA)","authors":"Balsam Mahmood Shaker, Raad M. Fenjan","doi":"10.31272/jeasd.27.2.5","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.5","url":null,"abstract":"It is becoming increasingly popular to manage agricultural wastes in an environmentally friendly manner and to take advantage of this waste by manufacturing a product with good properties and a high carbon percentage and then using it as a substitute for a variety of materials and fillers in several industrial and environmental applications. This process has become increasingly popular as awareness of environmental issues has grown. This study aimed to characterize and evaluate the amount of carbon that was present in the sample. The physicochemical characteristics of biochars produced from sesbania stems that were pyrolyzed at a temperature of 400 degrees Celsius for a period of 0.5, 1, 1.5, and 2 hours. The characterizations of biochar produced from sesbania are done by Energy dispersive spectrometer and Fourier transforms infrared spectroscopy. It was found that as the pyrolysis residence time grew, the yield of biochar and the functional groups decreased, however, the amount of fixed carbon content increased, and all these effects contribute to the volatile matters that are present in the material. SSB is going to be an invaluable resource for applications in which high carbon content is required, as well as for use as a filler in a variety of composites.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43987890","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

A REVIEW OF SOLIDIFICATION/STABILIZATION OF HEAVY METAL CONTAMINATED SOIL 重金属污染土壤的固化稳定研究进展

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.7

Safaa Nader Jihad, Khitam Abdul Hussein Saeed

{"title":"A REVIEW OF SOLIDIFICATION/STABILIZATION OF HEAVY METAL CONTAMINATED SOIL","authors":"Safaa Nader Jihad, Khitam Abdul Hussein Saeed","doi":"10.31272/jeasd.27.2.7","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.7","url":null,"abstract":"Heavy metal contamination has occurred as a result of industrial civilization. Zinc, copper, chromium, and lead are the most prevalent heavy metal pollutants. Heavy metal contamination has arisen as a significant environmental issue on a global scale. Human and environmental health is at risk when soils are contaminated. as well as have poor engineering qualities. Solidification/Stabilization is a critical remediation strategy for polluted soils which is both efficient and cost-effective. The solidification/stabilization approach has been frequently used to rehabilitate heavy metal-contaminated areas. First, The use of gypsum to strengthen and leach polluted soils was reviewed. Also, cement/fly ash-solidified/stabilized soils have better engineering qualities. On the other hand, the global output of phosphogypsum surpasses 300 million tons, raising disposal and environmental problems every year. The efficiency of the phosphogypsum-based stabilization/solidification technique was investigated, and the methods employed biochar and chemical agents such as citric acid and FeCl3. This review examines various remediation options as well as innovative soil amendments.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43504388","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

REVIEW OF MODIFYING THE INDICATORS OF ROAD SAFETY SYSTEM 道路安全体系指标修改综述

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.1

A. Jameel, H. Evdorides

{"title":"REVIEW OF MODIFYING THE INDICATORS OF ROAD SAFETY SYSTEM","authors":"A. Jameel, H. Evdorides","doi":"10.31272/jeasd.27.2.1","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.1","url":null,"abstract":"The new vision of road safety issue is based on a systematic approach called a “safe system’. This approach has been applied recently in some developed countries and resulted in a significant reduction in road fatalities. Alternatively, it is necessary to develop an index to use not only in assessing the size of the road safety problem but also to monitor the intermediate outcome of its operational performance. This paper aims to review the modified indicators of the operational performance of road safety systems based on the fundamentals of the ‘safe system’ vision. A methodology is presented to choose comprehensive, measurable, and independent indicators, which are relevant to the new vision and can be used to predict the conditions of the problem and enable actions to be taken to prevent road crashes from happening. In this methodology, the main indicators of road safety are classified into thematic indicators and individual indicators. These indicators are subjected to evaluation according to measurability, comprehensiveness, and availability of data. The final set of indicators is grouped into three thematic groups; safer road mobility, safer road user behavior, and safer vehicle. Based on the evaluation of the suggested indicators, it is concluded that the iRAP star rating is the most comprehensive, measurable, and dependent indicator to reflect the safer mobility indicator. Speeding, using a protective system, consuming psychoactive substances, and using a mobile phone while driving are chosen as safer road user behavior indicators. The EuroNCAP is chosen as the safer vehicle indicator.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41399643","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