Journal of University of Babylon for Engineering Sciences最新文献_第6页

Specifications for Building a Parametric Model in Digital Architectural Designs 数字建筑设计中参数化模型的建立规范

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-11-01 DOI: 10.29196/JUBES.V26I9.1723

Aynoor Farik Alafandy, Dhuha A. Al-Kazzaz

{"title":"Specifications for Building a Parametric Model in Digital Architectural Designs","authors":"Aynoor Farik Alafandy, Dhuha A. Al-Kazzaz","doi":"10.29196/JUBES.V26I9.1723","DOIUrl":"https://doi.org/10.29196/JUBES.V26I9.1723","url":null,"abstract":"The construction of parametric model is an important stage in the digital design process in general and in the parametric design process in particular. The parametric model allows the designer to make changes and reshape the geometry without erasing and redrawing. It also helps to explore design alternatives as it provides a level of flexibility to be continuously evaluated, revised and updated when adding or altering different components within the same parametric model structure. \u0000The research problem has been identified, as there is no clear definition of the specifications of constructing a parametric model in the contemporary digital architectural designs. Therefore, the objective of the research is to put forward a theoretical framework that defines clearly the specifications of building a parametric model. The framework describes the specifications using the following issues: the timing of constructing the parametric model, the knowledge employed in the construction of parametric model, the methods of constructing and revising a parametric model, The place where a parametric model is applied, and finally the number of parametric models within a design. The framework has been applied to six international projects adopting a parametric design approach. The results showed that employing parametric modeling mostly starts at the development stage of design and continues in the detailing and manufacturing stages, the adoption of ill-defined knowledge, the definition of design variables in terms of quantitative and qualitative characteristics, and using one parametric model shared among multiple design disciplines.","PeriodicalId":311103,"journal":{"name":"Journal of University of Babylon for Engineering Sciences","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115583132","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

Synthesis and Characterization of Zno Nanoparticles Using Hydrothermal and Sol-Gel Techniques for Dye-Sensitized Solar Cells 水热法和溶胶-凝胶法制备染料敏化太阳能电池用Zno纳米颗粒及表征

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-11-01 DOI: 10.29196/JUBES.V26I9.1736

H. Musleh, N. Aldahoudi, H. Zayed, S. Shaat, H. Tamous, N. Shurrab, A. Issa, J. Asad

{"title":"Synthesis and Characterization of Zno Nanoparticles Using Hydrothermal and Sol-Gel Techniques for Dye-Sensitized Solar Cells","authors":"H. Musleh, N. Aldahoudi, H. Zayed, S. Shaat, H. Tamous, N. Shurrab, A. Issa, J. Asad","doi":"10.29196/JUBES.V26I9.1736","DOIUrl":"https://doi.org/10.29196/JUBES.V26I9.1736","url":null,"abstract":"ZnO nanoparticles (ZnO NPs) were synthesized using hydrothermal and sol-gel techniques using zinc acetate dihydrate (Zn (CH3COO)2.2H2O) as a row material and methanol as a solvent. The structural properties of ZnO NPs were studied using EDX, XRD, TEM, and the optical properties were characterized using UV-VIS and PL spectroscopies. The synthesized ZnO NPs showed high purity and revealed a wurtzite (hexagonal) crystal structure with particle size (D) ranged from 25 nm to 28 nm. The UV-VIS absorption spectra of ZnO NPs samples and sensitizing dyes were performed. The obtained ZnO NPs exhibited the direct optical bandgap 3.15 eV. Dye-sensitized solar cells (DSSCs) were fabricated using synthesized ZnO NPs as a semiconducting layer, which was dyed with different low cost dyes such as Eosin B (EB), Eosin Y (EY) and Rhodamine B (RB) that was used to sensitize the photoanode (ZnO NPs). The experimental results showed a significant efficiency for the fabricated DSSCs of synthesized ZnO NPs via sol gel technique comparing to hydrothermal technique. The EY dye exhibited the best performance among others, where a conversion efficiency showed a noteworthy improvement from 0.12 to 1.08 %.","PeriodicalId":311103,"journal":{"name":"Journal of University of Babylon for Engineering Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129246275","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: 10

A Theoretical Study of Some Unsaturated Properties for Different Soils 不同土壤非饱和特性的理论研究

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-11-01 DOI: 10.29196/JUBES.V26I9.1720

M. N. J. Alzaidy

引用次数: 0

Air Pollution Levels by Re-suspended and Airborne Dust Due to Traffic Movement at the Main High Traffic Crossroads of Hilla City, Iraq 伊拉克希拉市主要高流量十字路口交通运动引起的再悬浮粉尘和空气中的粉尘污染水平

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-11-01 DOI: 10.29196/JUBES.V26I9.1756

H. A. Al-Zubaidi, A. Naje

{"title":"Air Pollution Levels by Re-suspended and Airborne Dust Due to Traffic Movement at the Main High Traffic Crossroads of Hilla City, Iraq","authors":"H. A. Al-Zubaidi, A. Naje","doi":"10.29196/JUBES.V26I9.1756","DOIUrl":"https://doi.org/10.29196/JUBES.V26I9.1756","url":null,"abstract":"This research includes a monitoring and an evaluation of the air pollution levels generated by the re-suspended and airborne dust due to traffic movement at the main busy crossroads of Hilla City, Nader Crossroad and Al-Thowra Crossroad, Iraq. The re-suspended dust is one of the most important contributors towards overall atmospheric pollution, especially when the roads are unpaved or under maintenance with high traffic load such as Nader Crossroad, which was under maintenance to construct a bridge on it. The concentrations of the total suspended particulate matters were determined at the two locations using portable air sampler during traffic rush hour on sunny moderated weekdays for four months, December 2011, February 2012, April 2012, and May 2012. The results have confirmed the contribution of the unpaved roads in air pollution. The results showed that the average TSP levels at Nader Crossroad was higher than the average TSP levels at Al-Thowra Crossroad during the total period of the study in which the minimum TSP level at Nader Crossroad was 5676.67 μg/m3, which was higher than the maximum TSP level at Al-Thowra Crossroad, 4096.41 μg/m3. In addition, the re-suspended dust concentrations that were measured in this study and ranged from 426.06 to 9348.95 μg/m3 are much higher than the American Environmental Protection Agency acceptable limits of national ambient air quality standards for the particulate matter. ","PeriodicalId":311103,"journal":{"name":"Journal of University of Babylon for Engineering Sciences","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124433885","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

Simple, Low Cost, and Efficient Design of a PC-based DC Motor Drive 一种简单、低成本、高效的基于pc的直流电机驱动器设计

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-10-21 DOI: 10.29196/JUBES.V26I9.1695

Athraa Sabeeh Hasan

{"title":"Simple, Low Cost, and Efficient Design of a PC-based DC Motor Drive","authors":"Athraa Sabeeh Hasan","doi":"10.29196/JUBES.V26I9.1695","DOIUrl":"https://doi.org/10.29196/JUBES.V26I9.1695","url":null,"abstract":"\u0000In industrial applications, requiring variable speed and load characteristics, the DC motor is the attractive piece of equipment; due to its ease of controllability. Pulse-width modulation (PWM) or duty-cycle variation methods are commonly used in speed control of DC motors. A simple, low cost, and efficient design for a control circuit uses the PWM to adjust the average voltage fed the DC motor is proposed in this paper. The objective of this paper is to illustrate how the DC motor's speed could be controlled using a 555 timer. This timer works like a changeable pulse width generator. The pulse width can be changed via relays to add or remove resistors in the timer circuit. Using relays enable the proposed circuit to drive higher-power motors. The designed circuit controls the speed of a Permanent Magnet PM DC motor by means of the parallel port of a PC; therefore, the user will be able to control the speed of the DC motor. C++ computer program is used to run the motor at four levels of speed. An interface circuit is used to connect the motor to the parallel port. PC based control software is chosen to get simplicity and ease of implementation. \u0000","PeriodicalId":311103,"journal":{"name":"Journal of University of Babylon for Engineering Sciences","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115260666","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

Surface Preparation of (2024-T4) Aluminum Alloy by Electroless Plating 化学镀(2024-T4)铝合金的表面制备

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-09-12 DOI: 10.29196/JUBES.V26I8.1633

N. S. Radhi, Baraa Alkhaqani

{"title":"Surface Preparation of (2024-T4) Aluminum Alloy by Electroless Plating","authors":"N. S. Radhi, Baraa Alkhaqani","doi":"10.29196/JUBES.V26I8.1633","DOIUrl":"https://doi.org/10.29196/JUBES.V26I8.1633","url":null,"abstract":"This study dealt with the process of coating (immersion) and the factors affecting this process stability of the solution and change the time and temperature of immersion. In this study, aluminum alloy (2024-T4) was applied with a solution consisting of zinc oxide and sodium hydroxide (81 g/l NaOH+81 g/l ZnO). Thus, zinc sulphate formed by immersing the sample with nitric acid solution (50 % HNO3+50%water). Then immersed in distilled water. The immersion process was carried out at a different temperature between (25, 55 and 65) °C and different time periods. The results showed an increase in the growth of the deposition layer with increasing duration of the sample and the electrical resistance of the samples and for the same periods. A correlation was drawn between time change and oxide layer growth. Curvature growth was shown with increasing time period for sample exposure to air. The correlation between electrical resistance and time period change was also determined. Simulation between the experimental results and theoretical calculated by using ANSYS version 15. Finally, to confirm the formation and growth of the oxide layer draw by using MATLAB version 15A, Topographic test was examined and XRD.","PeriodicalId":311103,"journal":{"name":"Journal of University of Babylon for Engineering Sciences","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128708251","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

The Smart Electric Network 智能电网

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-09-05 DOI: 10.29196/jubes.v26i8.1593

Mohammed Abais Yousif

引用次数: 0

Soil Analysis of Roads near Environment Soil for Lead Pollution Assessment, Study Case: Tehran- Karaj Highway 道路附近环境土壤铅污染评价的土壤分析，研究案例:德黑兰-卡拉杰高速公路

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-09-05 DOI: 10.29196/JUBES.V26I8.1603

Mustafa Nur Istanbuly, B. Amiri, A. Hamidian

{"title":"Soil Analysis of Roads near Environment Soil for Lead Pollution Assessment, Study Case: Tehran- Karaj Highway","authors":"Mustafa Nur Istanbuly, B. Amiri, A. Hamidian","doi":"10.29196/JUBES.V26I8.1603","DOIUrl":"https://doi.org/10.29196/JUBES.V26I8.1603","url":null,"abstract":"There are different pollution sources, which affect soil including transportation, especially in highways. These effects can be assessed by Environmental Impact Assessment. In this study, seven sampling stations were selected in different distances (0, 10, 20, 50, 100 meter) along Tehran- Karaj highway. Samples were collected and their concentrations of Pb were measured using a FAAS after dry acid digestion. It was observed that the highway had a negative impact on the peripheral soil. These impacts were higher in Tehran with average lead concentrations, and declined by moving toward Karaj. Moreover, the average concentration of lead in soil significantly decreased by increasing distance from the roadside. \u0000Highest lead concentration was in station (E) in the middle of the road with an average of 160.50 mg/kg. The highest average concentrations were observed in soils of the roadside with an average of 115.25 mg/kg. The highest concentration was also observed in station (B) and in the roadside, with a concentration of 302 mg/kg, which was above the international allowable limits. Tehran- Karaj highway is in the list of the most polluted roads in the world and it must be concerned for its lead pollution, especially in the roadside. Essential steps for controlling the negative impacts must be taken including the expansion of green-space along the highway.","PeriodicalId":311103,"journal":{"name":"Journal of University of Babylon for Engineering Sciences","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116815589","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

Integration of Optimum Power for Wind Turbine Blade at Different Cross Section 风力机叶片不同截面最优功率的集成

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-07-05 DOI: 10.29196/JUBES.V26I7.1498

Muhammad A. R. Yass, Saadi T. Kurdi, Mahmood Abdulzahra Shkara

引用次数: 2

High Sensitive MEMS Intraocular Capacitive Pressure Sensor (Glaucoma) 高灵敏度MEMS眼内电容式压力传感器(青光眼)

Journal of University of Babylon for Engineering Sciences Pub Date : 2018-07-05 DOI: 10.29196/jubes.v26i7.1499

T. M. Abbas, Qais Al-Gayem

{"title":"High Sensitive MEMS Intraocular Capacitive Pressure Sensor (Glaucoma)","authors":"T. M. Abbas, Qais Al-Gayem","doi":"10.29196/jubes.v26i7.1499","DOIUrl":"https://doi.org/10.29196/jubes.v26i7.1499","url":null,"abstract":"Micro Electro Mechanical Systems (MEMS) are a small-scale technology that was largely adopted by the IC industry and applied to miniaturize of all systems (electrical systems, mechanical, optical, fluidic, magnetic, etc.). Minimization has been accomplished with small manufacturing processes. A Capacitive pressure sensor is simply a diaphragm-type device in which the diaphragm displacement is determined by measuring the capacitance change between the diaphragm and a metal plate that is close to it. \u0000For this purpose, intraocular pressure sensors are important in detection and treatment of an incurable disease called glaucoma. To improve the sensitivity of the capacitive pressure sensor, low stress doped polysilicon material is used as a biocompatible material. Glaucoma is a group of eye diseases that occurs by high intraocular pressure (IOP). IOP is the pressure exerted by the ocular fluid called aqueous humor (the clear fluid inside the eye) that fills the anterior chamber of the eye \u0000The results Shows the simulated relation between capacitance and pressure for clamped ++silicon and polysilicon clamped. It can be seen from figure that the initial capacitance for clamped p++ silicon is about 1.81 pF the capacitance varies from 1.81 to 2.162 pF for clamped p++silicon and clamped polysilicon diaphragm, respectively, so the total variation of the capacitance. This result shows the use of poly silicon material in diaphragm is high sensitivity than the p++ silicon.","PeriodicalId":311103,"journal":{"name":"Journal of University of Babylon for Engineering Sciences","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116156617","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