Al-Qadisiyah Journal for Engineering Sciences最新文献_第5页

Analysis of rural road traffic crashes in Al-Diwaniyah province using artificial neural network 基于人工神经网络的Al-Diwaniyah省农村道路交通事故分析

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-12-30 DOI: 10.30772/qjes.v15i4.856

Taghreed S. Khuzan, Mohammed Al-Jumailibv

引用次数: 5

Upgrading the atmospheric distillation residue of Al- Samawah refinery utilizing thermal cracking process 利用热裂解工艺对三华铝精炼厂常压蒸馏渣油进行改造

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-12-30 DOI: 10.30772/qjes.v15i4.879

H. Kareem, H. Al.Tameemi

{"title":"Upgrading the atmospheric distillation residue of Al- Samawah refinery utilizing thermal cracking process","authors":"H. Kareem, H. Al.Tameemi","doi":"10.30772/qjes.v15i4.879","DOIUrl":"https://doi.org/10.30772/qjes.v15i4.879","url":null,"abstract":"Thermal cracking of heavy oil residues has gained the attention of oil refineries due to the increasing need for light oil fractions, as well as its lower value compared to light oil fractions. In this paper, the thermal cracking process of the residual crude oil that product from atmospheric distillation towers in the Samawah Refinery was studied in order to convert the heavy oil into a lighter oil. API gravity and conversion ratio for the result from the cracking process has been adopted as indicators of the accuracy and efficiency of the thermal cracking process for AR (atmospheric residue), where the API gravity for AR is equal to 15.5 .The response surface methodology (RSM) was adopted in the design of experiments to reach the best variables of operational conditions , which were in a range of temperatures (350-450 degrees Celsius) and time (30-60 minutes), through which we obtain the best results for the conversion ratio and API gravity for the liquid resulting from the thermal cracking process of AR, where the conversion ratio was 53.4% and API gravity equals 34.4 with a time of 45 minutes and temperature 386 0C.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127499084","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

Performance-based building design: evaluation of functional performance of the emergency department in erbil city hospitals using patient feedback 基于性能的建筑设计:利用病人反馈评价埃尔比勒市医院急诊科的功能性能

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-12-30 DOI: 10.30772/qjes.v15i4.887

B. Sabir, F. Mustafa

{"title":"Performance-based building design: evaluation of functional performance of the emergency department in erbil city hospitals using patient feedback","authors":"B. Sabir, F. Mustafa","doi":"10.30772/qjes.v15i4.887","DOIUrl":"https://doi.org/10.30772/qjes.v15i4.887","url":null,"abstract":"The emergency department (ED) is one of the most important departments in hospitals, which provides emergency care to patients who need rapid medical treatment. The configuration of the ED's interior spaces impacts their functioning and determines the hospital complex's performance. This study proposes a Performance-Based Building Design (PBBD) approach to ED layouts in Erbil city hospitals to determine which ED types achieve more functionality factors. The research objective is to inspect three different ED layout typologies and discusses the possibility of the spatial layout of each ED typology in creating a more functionally efficient ED. Eight ED were selected from eight hospitals in Erbil city. Quantitatively Post Occupancy Evaluation (POE) questionnaire form was distributed to patients to investigate their opinion on the availability of ED spatial layout variables. Statistical analysis is used for analyzing patient feedback and proving the research hypotheses. As a result, according to patient feedback, the ballroom layout typology was found to be the most beneficial since it has the most functional efficiency factors while the podular and linear layout typology has the fewer. The research findings provide healthcare designers with a useful framework and resource for future designs, especially for treatment spaces within ED.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129693060","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

Improve heat transfer in sudden expansion canal by using obstacle 利用障碍物改善突胀管内的传热

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-12-30 DOI: 10.30772/qjes.v15i4.886

M. Salman, D. Hamzah

引用次数: 0

Effect of ball milling on NiTi powder metallurgy alloy 球磨对NiTi粉末冶金合金的影响

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-10-30 DOI: 10.30772/qjes.v15i3.840

Noor Sami, M. Abbood, Amar Albaaj

引用次数: 0

A catalytic cracking process on atmospheric residue from the Al-Diwaneyah petroleum refinery Al-Diwaneyah炼油厂常压渣油催化裂化工艺研究

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-10-30 DOI: 10.30772/qjes.v15i3.829

Zaid M. Mezher, H. Al.Tameemi

{"title":"A catalytic cracking process on atmospheric residue from the Al-Diwaneyah petroleum refinery","authors":"Zaid M. Mezher, H. Al.Tameemi","doi":"10.30772/qjes.v15i3.829","DOIUrl":"https://doi.org/10.30772/qjes.v15i3.829","url":null,"abstract":"The Reduced Crude Residue R.C.R it’s a product of atmosphere distillation from crude oil in the Al-Diwaneyah refinery, where the product from the lower distillation tower at 300 °C thein the atmospheric distillation unit. For Production of Light Petroleum fractions from Reduced Crude Residue R.C.R by Cracking Reaction. Catalytic cracking of reduced crude residue (R.C.R) was joined with a riser pressure continuous reactor was completed in an autoclave with different process selection, temperature about 350–450 °C, catalytic cracking time (60–120) minute, the dosage of catalyst (0.1-0.5) gm and pressure 1–5 bar in the existence of Nitrogen. Statistical program design of testing (RSM) by Box-Behnken (BB) was employed to predict the selection of necessary changes in the cracking by the catalyst of reduced crude residue (R.C.R), and to gain better process conditions. Depended on the (3) plane for the design of the factorial, the cubist system was progressing between the cracking by catalyst conditions to overall production, and the more influential operator for all testing system responses was selected. The prophecy yields and conversion of all upgrade liquid phase, gas phase, coke, and residue were found to agree satisfactory with the testing grade. At a temperature of 400 °C, a pressure of 1 bar, a dosage of 0.3 gm, and a longer residence time (2 h) the best experiment is to get the maximum yield of the liquid phase product. The better run for quality when temperature 400 °C, pressure 5 bar, dosage 0.5 gm and 90 minutes as running time depended on API, sp. gr, density, viscosity, and flash point.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126722876","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

Effect of water immersion on the AC-WC mixture utilizing elastomeric modified asphalt to compressive strength, elastic modulus and durability 水浸对弹性改性沥青AC-WC混合料抗压强度、弹性模量和耐久性的影响

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-10-30 DOI: 10.30772/qjes.v15i3.831

Edi Adiman, L. Suparma

{"title":"Effect of water immersion on the AC-WC mixture utilizing elastomeric modified asphalt to compressive strength, elastic modulus and durability","authors":"Edi Adiman, L. Suparma","doi":"10.30772/qjes.v15i3.831","DOIUrl":"https://doi.org/10.30772/qjes.v15i3.831","url":null,"abstract":"Indonesia has relatively high rainfall with a long duration of rain. It can result in a flood on the surface of the road. A flood can reduce the strength of materials from the asphalt mixture and cut the life of the road plan. Therefore, it is necessary to conduct a study that can measure the durability level of the asphalt material mixture on the surface layer of the road to the flood water bath. The study used an Asphalt Concrete-Wearing Course (AC-WC) mixture with Elastomeric Modified Asphalt (EMA), and an Upper Limit (UL), Middle Range (MR), and Lower Limit (LL) gradation based on specification. The Optimum Bitumen Content (OBC) value was obtained from each gradation by applying the Marshall test. The value of the OBC was used to create specimens that had a diameter of 3 inches and a height of 6 inches, and they were using an Unconfined Compression Strength (UCS) test. This study measures the durability of compressive strength and elastic modulus from a mixture of flood water immersion for 1, 2, 4, and 7 days. To calculate the durability using Retained Strength Index (RSI), First Durability Index (r), and Second Durability Index (a). The results showed that there was a decrease in the compressive strength of the mixture on gradations of UL, MR, and LL on days 1, 2, 4, and 7. It meant that the longer the immersion time more reduced the compressive strength of the mixture. The UL-gradedraded mixture had the best durability when it was compared to the MR and LL gradations up to the 7th-day immersion, with an RSI of 91.19%, (r) of 7.44%, and (a) of 6.93%. At the same time, in the elastic modulus of the mixture, there was no significant effect on the duration of immersion because it had a fluctuating value of the elastic modulus to the duration of immersion.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123974323","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: 1

Semisolid state sintering behavior of aluminum-stainless steel 316L-nickel composite materials in powder metallurgy 铝-不锈钢- 316l -镍复合材料在粉末冶金中的半固态烧结行为

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-10-30 DOI: 10.30772/qjes.v15i3.838

Ali A. Oudah, M. Hassan, N. Almuramady

{"title":"Semisolid state sintering behavior of aluminum-stainless steel 316L-nickel composite materials in powder metallurgy","authors":"Ali A. Oudah, M. Hassan, N. Almuramady","doi":"10.30772/qjes.v15i3.838","DOIUrl":"https://doi.org/10.30772/qjes.v15i3.838","url":null,"abstract":"Powder metallurgy (PM) is a primarily used because of its relatively close capability and cost-achievement ratio. The automotive industry is considered a major market for the powder metallurgy industry, as it necessitates products having superior mechanical or part of the implementation on a global level. PM technology is undergoing considerable changes in manufacturing and materials research as automobile technologies transitions beyond classic gasoline - powered vehicles to new energy vehicles. Changes in automobile technologies has created both obstacles and opportunities for PM, as outlined in this article. The mechanical properties of FGM (Al-Ni-steel) sample were investigated using hardness and tensile tests. Transmission electron microscopy (SEM) and X-ray Diffraction Instrument analysis were also used to analyze the microstructure of FGMs in detail by using Xpert panalytical program. Tensile specimens were made from sintered cylindrical rods with a length of 150 mm size with diameter of 10 mm. Tensile samples with the circular section size of 1cm and a length of 3 cm are machined according to ASTM E-8M. Homogeneous beams comprising varied weight fractions of Al (aluminum), Ni (nickel), and 316 steel are fabricated and tensile tests are performed to estimate the elastic modulus of horizontally layered functionally graded (FGMs) rods. Each homogenous layer's density is also calculated experimentally.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"434 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126097861","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

Anatomical scaffold application for the digital rebuilding of human lower jaw defects 解剖支架在人下颌骨缺损数字重建中的应用

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-10-30 DOI: 10.30772/qjes.v15i3.834

Karim Husain

{"title":"Anatomical scaffold application for the digital rebuilding of human lower jaw defects","authors":"Karim Husain","doi":"10.30772/qjes.v15i3.834","DOIUrl":"https://doi.org/10.30772/qjes.v15i3.834","url":null,"abstract":"Researchers are making huge efforts in the field of rebuilding the large missing parts of the human lower jaw, and this represents a major challenge in the field of bone engineering based on reconstruction on the basis of human bone implants. This challenge is to create customized designs that fit the physiological, genetic, and anatomical characteristics of each individual patient. Designing these implants specifically for each case will definitely improve and reduce the recovery period. In order to achieve an improvement in the lower jaw surgery process and clinical practice, the required design of a precise three-dimensional engineering scaffold whose external shape resembles the shape of the missing part of a lower jawbone will reduce the appearance of complications during recovery in addition to preserving the teeth to be implanted and meet mechanical as well as aesthetic requirements. The scaffolds that are designed and will be implanted to replace the missing parts of a lower jaw will be subject to great mechanical loads, for this reason, a scaffold that meets the anatomical conditions is designed on the basis of the 3D geometry of patterns be addressed in research. The process of changing the 3D patterns leads to the modification of the mechanical properties of the scaffold. Because of its complex structure, will be applying additive manufacturing techniques to manufacture this scaffold.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133684027","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

Comparative study for Pb2+ adsorption from simulated wastewater of battery manufacture on activated carbon prepared from rice husk with different activation agents 稻壳活性炭对模拟电池生产废水中Pb2+吸附性能的比较研究

Al-Qadisiyah Journal for Engineering Sciences Pub Date : 2022-10-30 DOI: 10.30772/qjes.v15i3.827

Murtadha K. Khashan, A. Mohammad

{"title":"Comparative study for Pb2+ adsorption from simulated wastewater of battery manufacture on activated carbon prepared from rice husk with different activation agents","authors":"Murtadha K. Khashan, A. Mohammad","doi":"10.30772/qjes.v15i3.827","DOIUrl":"https://doi.org/10.30772/qjes.v15i3.827","url":null,"abstract":"This study contains a lab-scale investigation into the feasibility of applying an adsorption technique to treat wastewater polluted with lead metal simulated to that exhaust from a battery manufactory. Rice husks have been prepared for use in three forms; natural rice husks without any activation, activated carbon of rice husks pretreated with Sulfuric acid H2SO4, and the other pretreated with Potassium hydroxide KOH. Activated carbon using KOH provided the best condition for the removal of lead than carbon activated using H2SO4 and natural rice husks. The BET surface area and surface morphology by FESEM analysis were characterized. The values of surface area were (20, 561, 722) m2/g for natural rice husk, activated carbon pretreated with sulfuric acid, and potassium hydroxide respectively. The adsorption process was studied using Pb2+ at temperatures of (25-40)o C and for a concentration range of (20-100) mg/l. The maximum removal ratios of lead Pb2+ for natural rice husks and sulfuric acid or hydroxide potassium activation after 1h were 51.21%, 92.3%, and 97.25%, respectively. The maximum adsorption capacity of lead Pb2+ onto natural rice husks, rice husks pretreated with H2SO4 or KOH, and into activated carbons was (37, 86.2 and 94.6) mg/g respectively, at a concentration of 100 ppm and at 25oC. The equilibrium adsorption curves were obtained for Pb2+ and the data was fairly well fitted with Freundlich-isotherm with a confidence level of 0.99. The kinetic of adsorption was studied by using two kinetic models, pseudo first order and pseudo second order. The results showed the rapid increase in the rate of adsorption at the initial until equilibrium achieved. Pseudo second order model was represented the data very well with confidence level 0.99.","PeriodicalId":227530,"journal":{"name":"Al-Qadisiyah Journal for Engineering Sciences","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132213683","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