Journal of Engineering and Sustainable Development最新文献_第10页

REVIEW OF RECYCLING NATURAL AND INDUSTRIAL MATERIALS EMPLOYMENTS IN CONCRETE 再生利用天然和工业材料在混凝土中的应用综述

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.3

Dalia Adil Rasool, Harith H. Al-Moameri, Mais A. Abdulkarem

{"title":"REVIEW OF RECYCLING NATURAL AND INDUSTRIAL MATERIALS EMPLOYMENTS IN CONCRETE","authors":"Dalia Adil Rasool, Harith H. Al-Moameri, Mais A. Abdulkarem","doi":"10.31272/jeasd.27.2.3","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.3","url":null,"abstract":"Concrete is the most commonly used and dependable substance and the most consumed among all other construction materials. However, the construction industry’s insatiable need for building supplies has led to the widespread exploitation of natural resources like river sand and stone. However, one of the most pressing problems in the construction industry and others nowadays is excessive waste and byproducts. Promoting ecological control and the goal of sustainable progress has put environmental pressure on all businesses, including construction, to embrace eco-friendly practices. Environmentalists’ concerns about the dangers posed by the widespread use of natural resources in building construction are growing. In some instances, construction debris may be harmful to the environment. Global building growth and redevelopment plans have worsened demolition in the construction industry. The demand for construction materials is increasing yearly due to urbanism, but their costs are rising simultaneously. Using industrial waste like polymers and rubbers and natural waste like olive stones and pumice stones to replace cement, fine aggregate, and coarse aggregate to reduce building costs conserves natural resources from exhaustion and protects the environment from waste impact and risks. The current research shows how waste can be used to replace materials on construction sites and the impact of the properties of these materials on the quality of concrete.","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":"48091254","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

VEHICLE BLACK BOX IMPLEMENTATION FOR INTERNET OF VEHICLES BASED LONG RANGE TECHNOLOGY 基于远程车联网技术的车载黑匣子实现

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.8

Gregor Alexander Aremice, Abbas H. Miry, Tariq M. Salman

{"title":"VEHICLE BLACK BOX IMPLEMENTATION FOR INTERNET OF VEHICLES BASED LONG RANGE TECHNOLOGY","authors":"Gregor Alexander Aremice, Abbas H. Miry, Tariq M. Salman","doi":"10.31272/jeasd.27.2.8","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.8","url":null,"abstract":"The vehicle Black Box system records variations in vehicles in order to minimize and analyze accidents; or records traffic rules violations automatically and reports them to the traffic authority system. In many countries (like Iraq) traffic violation recording implemented manually causing false traffic fine recordings, even when the vehicle is not at the same location at traffic fine recording, so it is necessary to develop such systems that confirm the availability of the vehicle in that location during violation occurrence. In this paper, a Vehicle Black Box system based 433MHz long-range wireless modulation technology developed for safe driving issues by utilizing gas and flames sensors, and for false traffic violation recording issues by proofing the availability of the vehicle at traffic violation location by utilizing a GPS module. The system-based Internet of Vehicles model transmits the acquired data, where two nodes representing vehicles used with one base station form Vehicle-to-Infrastructure communication mode. The system was tested in real-time and the sensed data was transmitted and stored in a database for future analyzing purposes where the acquired GPS data was used as proof of the vehicle’s correct location with date and time stamps. Two vehicle data where captured and stored indicating their correct location with date and time stamps and stored in a database at the base station. The measured Received Signal Strength indicator and Signal-to-Noise ratio values are stored for analyzing purposes. The performance of the system in such Internet of Vehicle environment is discussed according to the readings.","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":"43839107","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

EFFECTS OF MULTIPATH PROPAGATION CHANNEL IN TIGRIS RIVER 蒂格里斯河多径传播信道的影响

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.9

Murad Shahadha Mahmood, Y. Yousif Al-Aboosi

引用次数: 0

PERFORMANCE OF CORRODED THIN-WALLED STEEL TUBULAR COLUMNS FILLED WITH CONCRETE UNDER DIRECT MONOTONIC LOADING 锈蚀薄壁钢管混凝土柱在直接单调荷载作用下的性能

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.6

Zainab Faiq Yawer, A. Aziz

{"title":"PERFORMANCE OF CORRODED THIN-WALLED STEEL TUBULAR COLUMNS FILLED WITH CONCRETE UNDER DIRECT MONOTONIC LOADING","authors":"Zainab Faiq Yawer, A. Aziz","doi":"10.31272/jeasd.27.2.6","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.6","url":null,"abstract":"The current experimental work investigates the structural behavior of steel tubular columns filled with concrete (STCFC) subjected to corrosion conditions as well as direct axial and uniaxial loading. To find out the ultimate capacity for bearing corroded columns, eight steel tubular square columns filled with normal strength concrete (NSC) having a cross-section of (100×100mm), a thickness of (1.5mm) and a length of (1000-1200mm) were tested under concentric and eccentric loads. The main variables that were adopted in this experiment are the column type (slender or short), the type of the applied loads (concentric or eccentric), and the thickness of the steel columns (before and after corrosion). The experimental results indicated that, after the steel columns were exposed to (5%) dilute sulfuric acid for (8 days), it was found that the thickness of the steel columns had decreased by about (55%), which led to a decrease in the bearing capacity of the tested corroded steel columns by about (48% and 43%) for slender columns subjected to concentric and eccentric loads respectively, and by about (47% and 44%) for short columns subjected to concentric and eccentric loads respectively.","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":"49340788","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

POTENTIAL OF MEMBRANE DISTILLATION IN REMOVAL LEAD FROM DAIRY WASTEWATER 膜蒸馏法去除乳制品废水中铅的潜力

Journal of Engineering and Sustainable Development Pub Date : 2023-03-01 DOI: 10.31272/jeasd.27.2.11

Ali A. Hasan, Yaarob M. Al Nidawi, Ali F. Hassoon

{"title":"POTENTIAL OF MEMBRANE DISTILLATION IN REMOVAL LEAD FROM DAIRY WASTEWATER","authors":"Ali A. Hasan, Yaarob M. Al Nidawi, Ali F. Hassoon","doi":"10.31272/jeasd.27.2.11","DOIUrl":"https://doi.org/10.31272/jeasd.27.2.11","url":null,"abstract":"The dairy industry is not usually linked with simple environmental problems, its impression of the environment with different troubles. During the last decades, several types of treatment and procedures have been applied to relieve contaminants from dairy wastewater before being discharged into the environment. The procedure used in this work has green items and saves energy. This route is termed membrane distillation (MD). The method is defined as a contemporary method that can be summed up in financial expenses and electrical effort in addition to the guests and even preservation or care. Recompenses of this system could be summarized in economical, physical as well as Operation and Maintenance (O&M) attributes. Synthetic models of dairy wastewater have been prepared. Physiochemical analysis has been done to have the best decision on the implementation of treatment. American Public Health Association (APHA), American Water Works Association (AWWA), and Water Environment Federation (WEF) have been used as references for mad these tests. The results gathered to show the ability to remove lead at a rate of 98.89%. This figure could be prepared as a high value compared with other techniques' efficiency. The operation temperature to get the best treatment has been 15°C, which is very close to the normal medium. The best removal could be obtained at a temperature of 15°C. The fluctuation of temperature could be a role in rising or decreasing removal efficiency but to some extent.","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":"46369992","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

PRODUCTION OF DUCTILE CAST IRON BY RECYCLING GRAY CAST IRON SCRAP WITH ADDING VARIOUS LOCAL MATERIALS 利用灰铸铁废料，加入各种本地原料生产球墨铸铁

Journal of Engineering and Sustainable Development Pub Date : 2023-01-03 DOI: 10.31272/jeasd.27.1.10

Ali A. Mnati, K. K. Resan

{"title":"PRODUCTION OF DUCTILE CAST IRON BY RECYCLING GRAY CAST IRON SCRAP WITH ADDING VARIOUS LOCAL MATERIALS","authors":"Ali A. Mnati, K. K. Resan","doi":"10.31272/jeasd.27.1.10","DOIUrl":"https://doi.org/10.31272/jeasd.27.1.10","url":null,"abstract":"Ductile cast iron is also called spheroidal graphite cast iron or nodular cast iron. It contains graphite in the semblance of nodules. Automobile scrap (i.e., the engine block) made from gray cast iron was used in this study. In this paper, the recycling of gray cast iron to ductile iron, and its influence on the microstructure and mechanical characteristics be studied. Four kilograms of scrap were put in a crucible and then heated up to 1400°C in an oil-fired crucible furnace. For desulfurization, 4% burnt lime with 0.5% fluorspar was direct tapped into the melt at 1400°C. Then, the additions were 3.5% nickel, 0.75% Ferro molybdenum, and 0.5% Ferro manganese of the scrap weighing. Also, 3.75% nodularizing alloy and 1% inoculating alloy of scrap weight were to treat the molten at 1450°C. Samples analyses have been achieved to determine their composition, tensile strength, impact strength, Brinell hardness, and microstructural. The microstructures revealed that the scrap sample possesses flake graphite, and the produced sample includes nodule graphite. It is observed that the ultimate tensile stress, elongation, and hardness of the scrap sample, which are 247.75 MPa, 6%, and 400.3 HB, respectively, increased in the product sample to 416.23 MPa, 8%, and 451 HB, respectively.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42269566","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

EVALUATION OF NITRATE REMOVAL FROM DAIRY WASTEWATER BY MEMBRANE DISTILLATION: A LABORATORY MODEL APPROACH 膜蒸馏法去除乳品废水中硝酸盐的实验室模型评价

Journal of Engineering and Sustainable Development Pub Date : 2023-01-03 DOI: 10.31272/jeasd.27.1.11

Ali A. Hasan

{"title":"EVALUATION OF NITRATE REMOVAL FROM DAIRY WASTEWATER BY MEMBRANE DISTILLATION: A LABORATORY MODEL APPROACH","authors":"Ali A. Hasan","doi":"10.31272/jeasd.27.1.11","DOIUrl":"https://doi.org/10.31272/jeasd.27.1.11","url":null,"abstract":"The dairy industry is considered one of the main industries not only in Iraq in particular but throughout the world. Different treatment methods have been used over time and in different countries. Here, membrane distillation has been used to treat wastewater generated by this industry to reduce the burden on the environment. In this paper, direct membrane distillation was used to remove nitrates from wastewater discharged from dairy plants. This method is easy to operate, easy to manage, and has many economic benefits. This article has been using the HACH instrument with all kits needed to achieve the tests. For determination of nitrates in samples by the Calmagite Colorimetric method. HACH Method 8030. 100 mL Marked Dropping Bottle. All other instruments have been achieved according to APHA, AWWA, and WEF. On the other hand, scanning electron microscopy (SEM) has been used to watch the formation of nitrate on membrane surfaces. The results obtained in treating the samples that were synthesized and prepared according to the characteristics of dairy wastewater showed the ability of this method to remove nitrates by up to 80-85%, on the other hand, temperature affects the value of MD and is directly relative to flux. The temperature of the treated water plays an important role in determining the percentage of nitrate removal through the membrane, as well as the latter's enjoying chemical and physical features that give them positive points in its removal of wastewater when the liquid temperature had been raised.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43281852","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 AND SIMULATION OF HIGH GAIN SEPIC DC–DC CONVERTER 高增益专用dc-dc变换器的设计与仿真

Journal of Engineering and Sustainable Development Pub Date : 2023-01-03 DOI: 10.31272/jeasd.27.1.12

Ihsan A. Mejbel, Turki K. Hassan

引用次数: 0

COMPARISON OF TIME AND TIME-FREQUENCY DOMAINS IMPULSIVE NOISE MITIGATION TECHNIQUES FOR POWER LINE COMMUNICATIONS 电力线通信时频域脉冲噪声抑制技术的比较

Journal of Engineering and Sustainable Development Pub Date : 2023-01-01 DOI: 10.31272/jeasd.27.1.6

A. Mohammed, Maher K. Mahmood Al-Azawi

{"title":"COMPARISON OF TIME AND TIME-FREQUENCY DOMAINS IMPULSIVE NOISE MITIGATION TECHNIQUES FOR POWER LINE COMMUNICATIONS","authors":"A. Mohammed, Maher K. Mahmood Al-Azawi","doi":"10.31272/jeasd.27.1.6","DOIUrl":"https://doi.org/10.31272/jeasd.27.1.6","url":null,"abstract":"Impulsive noise is one of the foremost situations in power line communications that degrades the performance of orthogonal frequency division multiplexing used for the power line communications channel. In this paper, a channel version of the broadband power line communications is assumed when evaluating the bit error rate performance. Three impulsive noise environments are assumed, namely heavily, moderately, and weakly disturbed. The well-known time domain mitigation techniques are tested first. These are clipping, blanking, and mixing clipping with blanking. The results of Matlab simulations show that these time-domain mitigation techniques don't significantly improve the bit error rate performance. A hybrid domain of time and frequency mitigation techniques are used to enhance the bit error rate performance. The Matlab simulation results show that this hybrid domain of time and frequency approach outperforms time domain nonlinearities and can largely improve the bit error rate performance. Signal-to-noise ratio gains of about 8 dB, 10 dB, and 10 dB are obtained for heavily, moderately, and weakly disturbed channels, respectively, using the domains of time and frequency mitigation technique at a bit error rate of when compared to the blanking time domain technique.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45599557","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

SHEAR TRANSFER BEHAVIOR OF FIBROUS CONCRETE 纤维混凝土的剪切传递特性

Journal of Engineering and Sustainable Development Pub Date : 2023-01-01 DOI: 10.31272/jeasd.27.1.9

Eman Jwad, W. A. Waryosh

{"title":"SHEAR TRANSFER BEHAVIOR OF FIBROUS CONCRETE","authors":"Eman Jwad, W. A. Waryosh","doi":"10.31272/jeasd.27.1.9","DOIUrl":"https://doi.org/10.31272/jeasd.27.1.9","url":null,"abstract":"Fibrous concrete's shear strength behavior is important in structural design. Brackets, corbels, and ledger beams are examples of concrete members that might collapse in shear. Such a failure might be brittle and sudden. Fibers improve concrete's behavior by increasing residual shear transfer and reducing crack development and extension. In an experimental study, nine push-off specimens were divided into three groups and examined as part of the experiment. Conventional concrete, conventional concrete with 1% glass fiber, and conventional concrete with 1% steel fiber were the groups. There were three push-off specimens with various shear reinforcement ratios in each of the groups that were examined (0.0, 0.45, and 0.68%). The specimens utilized had dimensions of 500mm x 250mm x 125mm. The vertical slip and horizontal separation at the shear plane were measured using two-stroke linear variable displacement transducers (LVDT). The effect of fiber type and the ratio of transverse reinforcement across the shear plane were the parameters evaluated. The presence of fibers enhances final shear strength, which is more obvious in specimens without stirrups in the shear plane. Where the addition of 1% of glass fiber to normal strength concrete increased ultimate shear strength by 32.26%, 12.38%, and 12.5%, while adding 1% of steel fiber to normal strength concrete increased ultimate shear strength by up to 53.22%, 19%, and 25%, respectively, for the specimens without stirrups, two stirrups, and three stirrups. The fibrous specimens were stiffer and ductile failure was seen. Steel fibers improved overall concrete shear behavior better than glass fibers.","PeriodicalId":33282,"journal":{"name":"Journal of Engineering and Sustainable Development","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45776867","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