Al-Qadisiyah Journal for Engineering Sciences最新文献_第3页

Comparison between the two methods of optimization: Genetic algorithm (GA) and ant colony algorithm (ACO) for the propulsion system of UAV 对无人机推进系统的遗传算法和蚁群算法两种优化方法进行比较

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-06-30 DOI: 10.30772/qjes.v16i2.861

Mohammed Khashan, Dhamyaa S. Khudhur, H. Balla

{"title":"Comparison between the two methods of optimization: Genetic algorithm (GA) and ant colony algorithm (ACO) for the propulsion system of UAV","authors":"Mohammed Khashan, Dhamyaa S. Khudhur, H. Balla","doi":"10.30772/qjes.v16i2.861","DOIUrl":"https://doi.org/10.30772/qjes.v16i2.861","url":null,"abstract":"A propeller generates lift in the direction of revolution, similar to a revolving wing. Many previous propeller optimization techniques exist; nevertheless, they often find the optimal thrust coefficient at a constant power coefficient and vice versa. Using two types of algorithms, the genetic algorithm (GA), and the ant colony algorithm (ACO), and comparing with each other, this study will discover the optimal value of the thrust coefficient and the power coefficient combined to obtain the optimum value of the thrust and the lowest value of the power at the same time. A Simple Blade Element Theory Blade served as the foundation for all assumptions. This article examined over 80 various designs, brands, and types of propellers in a 2-blade configuration with diameters ranging from 2.5 to 19 inches and varying pitch values. The data for the baseline propeller was obtained from the UIUC Propeller Database. The inputs for the optimization are the propeller type, diameter, pitch angle, rotational speed, thrust coefficient, and power coefficient. The results show that by determining the factor of interest in the thrust coefficient (FITC), the algorithm can find the optimal propeller specifications. When the (FITC) is 100%, the algorithm will ignore the effect of the power coefficient and vice versa. In the instance (FITC) is 100 percent, the genetic algorithm performed much better than the ant colony algorithm (ACO). But the Ant colony algorithm is more accurate than the genetic algorithm.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126937635","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 solar air collectors with baffles and porous medium: Types and applications 多孔介质太阳能集风器的研究进展:类型及应用

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.841

Mustafa Yousif, M. Theeb

{"title":"A review of solar air collectors with baffles and porous medium: Types and applications","authors":"Mustafa Yousif, M. Theeb","doi":"10.30772/qjes.v16i1.841","DOIUrl":"https://doi.org/10.30772/qjes.v16i1.841","url":null,"abstract":"The current study and discussion in detail about the use of different types of porous media and barriers inside solar air heaters is our goal in this survey paper. The effect of different barriers and porous materials of different shapes and types within the solar air collectors and the effect of engineering parameters on heat transfer procedures and fluid movement were discussed by examining their thermal and hydraulic performance. Numerical and experimental analyses were presented on different types of flat solar air collectors containing differently shaped baffles or various porous media with different strategies to enhance heat transfer such as fluid flow measurement, pressure drop control, and checking their thermal and hydraulic performance by measuring the increase in air temperature at intensity Solar radiation and fluid mass flow. Studies show that the presence of porous barriers or media enhances the heat transfer process and increases the efficiency of solar air collectors. The types different of solar air collectors have been shown. We concluded this review to present various applications of solar air collectors such as cooling and heating various buildings, heating air for combustion processes, and drying coal and paper.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125961757","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 scientometric analysis and bibliometric review of driver injury severity crashes studies 对驾驶员伤害严重程度碰撞研究的科学计量分析和文献计量回顾

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.870

Amjad Mahdi, H. Zubaidi, Subasish Das

引用次数: 2

Anatomical personalized plate implants(APPIs) are the best choice for the treatment of distal femur fracture 解剖型个性化钢板植入物是治疗股骨远端骨折的最佳选择

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.833

Mohammed Rashida

{"title":"Anatomical personalized plate implants(APPIs) are the best choice for the treatment of distal femur fracture","authors":"Mohammed Rashida","doi":"10.30772/qjes.v16i1.833","DOIUrl":"https://doi.org/10.30772/qjes.v16i1.833","url":null,"abstract":"For the purpose of fixing the fractured distal femur, usually resorts to the use of metal internal fixation plates with all the accompanying (supportive) fixing devices such as screws, pins, and wires. These plates are manufactured according to standard dimensions and this means that they may not completely match the surface of the fractured distal femur for all patients, especially if the outer surface of the distal femur is complex and own more complex geometry., such as the distal femur. The complete mismatch, if it occurs, may lead to the emergence of immediate and future problems for the purpose of avoiding the occurrence of this problem and its accompanying complications and for the purpose of developing and accelerating the process of gaining complete recovery for the patient and saving time, effort, and money, in this paper, a new method is present to achieve the above goals through the design and manufacture of a three-dimensional plate for a specific patient that perfectly matches the external surface of the broken distal femur. Modern technologies are employed in the manufacturing process (additive manufacturing methods) to obtain an accurate plate dedicated to the fracture distal femur of a specific patient.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129782470","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

List of the academic editors of Al-Qadisiyah journal for engineering sciences for the period from 2021 to the present 基地组织工程科学期刊自2021年至今的学术编辑名单

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.897

Ali Fahem, N. Hamza

引用次数: 0

Active workplace – Association between workplace layout and physical activity among employees: A cross-sectional study 积极的工作场所——工作场所布局与员工身体活动之间的关系:一项横断面研究

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.842

Janan Ali, F. Mustafa

{"title":"Active workplace – Association between workplace layout and physical activity among employees: A cross-sectional study","authors":"Janan Ali, F. Mustafa","doi":"10.30772/qjes.v16i1.842","DOIUrl":"https://doi.org/10.30772/qjes.v16i1.842","url":null,"abstract":"This study aims to examine the association between workplace layout typology and employees’ physical activity, sedentary behavior, and health. A multi-method approach was conducted for collecting data in four governmental office buildings in Erbil city between April 2022 and June 2022. Qualitative data collection includes architectural plan analysis and photography. Quantitative data collection includes a self-reported questionnaire by participating 132 desk-based employees measuring daily physical activity, sedentary behavior, and physical and mental health. For analyzing the collected responses from the desk-based employees of government office buildings, IBM SPSS (statistical package for the social sciences) software V.25 was adopted. The result shows that there is a significant difference in the mean value of physical activity among employees, physical activity. Despite the low level of physical activity, employees working in linear layout buildings were more physically active than those in radial layout (linear=1.31, P-value < 0.000; radial = 1.13, P-value<0.000). The result also shows that there is a significant positive relation between sedentary behavior and physical health (r= 0.191, P-value<0.05), and mental health (r= 0.172, P-value<0.05). Based on these findings, we can infer that improving the quality of the built environment and implementing active design solutions contribute to promoting physical activity, decreasing sedentary behavior, and enhancing occupational health.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114446921","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

Residual strength capacity of reinforced reactive powder concrete two-way slabs subjected to drop weight 钢筋活性粉末混凝土双向板受落重作用的剩余强度能力

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.920

Sajjad Majeed, E. Sayhood, N. Mohammed

{"title":"Residual strength capacity of reinforced reactive powder concrete two-way slabs subjected to drop weight","authors":"Sajjad Majeed, E. Sayhood, N. Mohammed","doi":"10.30772/qjes.v16i1.920","DOIUrl":"https://doi.org/10.30772/qjes.v16i1.920","url":null,"abstract":"This paper presents an experimental investigation of the effect of the impact force on the residual strength capacity of simply supported reactive powder slabs. Eight specimens of reinforced reactive powder concrete slabs with dimensions of 500 x 500 mm and 70 mm in four categories were used. The influences of slab compressive strength (conventional concrete and reactive powder concrete), steel fiber proportion (1, 1.5, and 2%), percentage of reinforcement in the tension zone (ρ1=0.007, ρ2=0.011, ρ3=0.0179), and the number of impacts (two impacts, four impacts, and six impacts) were all investigated in this test. Investigations were carried out to ascertain each slab's residual response, including first cracking load, residual failure load, residual steel reinforcement strain, maximum central deflection, and crack pattern. The results showed that using reactive powder concrete instead of normal concrete increased the mechanical properties of concrete and resulted in a significant increase in failure load. In addition, the central deflection and strain increased. Increasing the reinforcement ratio increased the failure load while simultaneously decreasing the deflection due to the improvement in slab moment resistance. Furthermore, it was discovered through experiments that the addition of steel fiber to the mixture enhanced the slab’s post-cracking reactivity. The presence of steel fiber raised the slab strength resistance by 21.63% as the steel fiber ratio increased from 1% to 2%. This is because the addition of steel fiber increased the slab's tension resistance.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123838617","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

Experimental investigation of heat transfer in a cavity filled with (50% CuO-50% Al2O3)/Water with hybrid nanofluid attached to a vertically heated wall partially integrated with PCM (50% CuO-50% Al2O3)/水混合纳米流体与部分集成PCM的垂直加热壁面的传热实验研究

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.912

Muqdad Al-Maliki, K. Al‐Farhany

{"title":"Experimental investigation of heat transfer in a cavity filled with (50% CuO-50% Al2O3)/Water with hybrid nanofluid attached to a vertically heated wall partially integrated with PCM","authors":"Muqdad Al-Maliki, K. Al‐Farhany","doi":"10.30772/qjes.v16i1.912","DOIUrl":"https://doi.org/10.30772/qjes.v16i1.912","url":null,"abstract":"An empirical evaluation of free convective heat transmission was conducted in a rectangular enclosure containing a hybrid nanofluid of (50% CuO-50% Al2O3)/water linked to a PCM-containing wall. The enclosure's left and right surfaces were kept at constant warm and cold temperatures, whereas the remaining surfaces were assumed to be isolated. The left side was filled partially with PCM. Several variables were examined, such as the hot-side temperature differential (∆T =10, 15,20 ◦C) and the hybrid nanofluid concentration (Φ=0.03,0.05,0.07)%. The findings show that the rate of heat transmission through natural convection rises as the concentration of nanomaterials rises. Due to its great absorbability and heat storage capacity, PCM was also shown to have the potential to lower the hot side temperature by up to 15.5%. The Nusselt number rises over time as the left cavity is filled partially with PCM. When added hybrid nanofluid is, PCM’s heat-storage efficiency and, by extension, its ability to cool the hot side is greatly improved.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127643682","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

Investigation study of electrical discharge machining parameters on material removal rate for AISI M2 material 电火花加工参数对AISI M2材料去除率的影响研究

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.832

S. Aghdeab, Ahmed Abdulwahhab, Z. Mohsein

引用次数: 1

A comparative study of radiation models in spray combustion 喷雾燃烧中辐射模型的比较研究

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2023-03-30 DOI: 10.30772/qjes.v16i1.900

Alaa Al shiblawi, A. Majhool

引用次数: 0