Sulaimani Journal for Engineering Sciences最新文献_第2页

Impact of Inter Cell Interference on the Performance of Homogenous Cellular Systems 细胞间干扰对同质细胞系统性能的影响

Sulaimani Journal for Engineering Sciences Pub Date : 2023-04-01 DOI: 10.17656/sjes.10159

Shanga Mohammed, A. Ameen

引用次数: 0

Geospatial Analysis Model for Locating Optimum Centralized Wastewater Treatment Plant for Sulaimania City 苏莱曼尼亚市集中污水处理厂优选选址的地理空间分析模型

Sulaimani Journal for Engineering Sciences Pub Date : 2023-04-01 DOI: 10.17656/sjes.10156

Shakhawan Majed, Z. Ghafour

{"title":"Geospatial Analysis Model for Locating Optimum Centralized Wastewater Treatment Plant for Sulaimania City","authors":"Shakhawan Majed, Z. Ghafour","doi":"10.17656/sjes.10156","DOIUrl":"https://doi.org/10.17656/sjes.10156","url":null,"abstract":"Sulaymaniyah city has no wastewater treatment plant (WWTP) and the sewage is discharged into a stream (Qilyasan Stream) without treatment. Wastewater disposal problem has been a major concern in many developing countries because of the high rate of population growth. The aim of this study is to find the best location for a wastewater treatment plant in Sulaymaniyah city. The city consists of three major areas which are; Sulaymaniyah Central, Bakrajo, Rapareen, and Tasluja. Linear combination Mulita Criteria Decision Model (MCDM) is applied using GIS integrated with Fuzzy Analytic Hierarchy Process (FAHP). In the GIS model nine suitable criteria are used; distance to the agricultural areas, distance to the wells, distance to the sewer outlets, distance to the main roads, the area slope, the area elevation, distance to the water body, depth to the groundwater table and distance to the industrial area. Moreover, two restricted layers are considered; the distance from the residential areas and the distance from other buildings such as; educational buildings, sports centers, commercial areas, and the airport. The buffer distance of the restricted distances is taken 1,220 m. FAHP is used to find the weights of the suitable criteria that applied in the linear combination equation. The result showed five final suitable classifications; not suitable, low suitable, moderately suitable, highly suitable, and extremely suitable.","PeriodicalId":307862,"journal":{"name":"Sulaimani Journal for Engineering Sciences","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134068461","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 Role of Artificial Lighting in Achieving Dynamism in Commercial Building 人工照明在商业建筑中实现活力的作用

Sulaimani Journal for Engineering Sciences Pub Date : 2023-04-01 DOI: 10.17656/sjes.10155

Hersh Jaza, H. Rasul

{"title":"The Role of Artificial Lighting in Achieving Dynamism in Commercial Building","authors":"Hersh Jaza, H. Rasul","doi":"10.17656/sjes.10155","DOIUrl":"https://doi.org/10.17656/sjes.10155","url":null,"abstract":"Human interest in building design has become general, including the design of artificial lighting for building facades. Therefore, in the priorities of many owners and designers. Commercial buildings are always looking for different means that contribute to improving the process of displaying products and providing the right environment to attract customers. This paper investigates the role of artificial lighting in architectural aspects. So, the objectives of the research are to evaluate the properties of artificial lighting, and its role in the formation of the building facade elements during the night, in order to make the building successful in terms of form and function (reviving architecture at night). The research problem arises in the lack of interest in applying the role of artificial lighting properties such as (intensity, beam angle, and color) in studying the dynamic state of the commercial building facade elements (line, shape, and texture). A hypothesis should be formed: If the characteristics of artificial lighting are adjusted, it will have an effect on achieving the dynamic state of the elements of the commercial building facade. The results determined the role and effects of artificial lighting properties on the dynamic situation, such as the elements forming the facades of commercial buildings during the night period.","PeriodicalId":307862,"journal":{"name":"Sulaimani Journal for Engineering Sciences","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123914451","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

Synthesis and characterization of Nano ashes from different waste materials and their effects on the compressive strength of sustainable concrete: A systematic review 不同废弃物纳米灰的合成、表征及其对可持续混凝土抗压强度的影响

Sulaimani Journal for Engineering Sciences Pub Date : 2023-04-01 DOI: 10.17656/sjes.10153

H. Ahmed, Dalya F. Ibrahim, Rozhno Mustafa, Rabar H. Faraj

{"title":"Synthesis and characterization of Nano ashes from different waste materials and their effects on the compressive strength of sustainable concrete: A systematic review","authors":"H. Ahmed, Dalya F. Ibrahim, Rozhno Mustafa, Rabar H. Faraj","doi":"10.17656/sjes.10153","DOIUrl":"https://doi.org/10.17656/sjes.10153","url":null,"abstract":"Nanotechnology can be regarded as one of the new research fields having novelty and important applications that recently gained attention, especially during the last twenty years. The implementation of nanotechnology produces materials with novel characteristics and recently many works were conducted to include nanoparticles (NPs) in cement-based materials to improve performance and manufacture concrete with better behavior under different mechanical and environmental conditions. Previous studies demonstrated that different waste ashes such as, fly ash, cement kiln dust, palm oil fuel ash, eggshell ash, Metakaolin, and waste ceramic ash can be efficiently converted to sustainable nano ashes. The chemical and physical properties of the produced nano ashes were significantly different from their parent ashes. Therefore, the concrete produced with these nano ashes had superior properties compared to the normal concrete made with traditional waste ashes. This paper presents a systematic overview of the synthesis and characterization of different nano ashes and their impacts on the performance of concrete mixtures. Based on the results from the comprehensive review, it was illustrated that the specific surface to volume ratio was considerably increased by converting the ashes to nano ashes, thus the properties of concrete were also improved. Moreover, due to the higher specific surface area of nano ashes and their reaction with undesirable C-H which is present in the cement paste matrix to produce additional C-S-H, the microstructure of concrete was considerably enhanced.","PeriodicalId":307862,"journal":{"name":"Sulaimani Journal for Engineering Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128765820","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

Modeling and Practical Implementation of Separately Excited DC Motor Water Pump System 分励直流电机水泵系统的建模与实际实现

Sulaimani Journal for Engineering Sciences Pub Date : 2023-04-01 DOI: 10.17656/sjes.10160

Rawaz Karim, A. Abdulrahman

引用次数: 0

Evaluation of Fracture Mechanics Parameters of Light-weight Concrete by Implementing Natural Pumice Stone as Coarse Aggregate 采用天然浮石作粗骨料的轻质混凝土断裂力学参数评价

Sulaimani Journal for Engineering Sciences Pub Date : 2023-04-01 DOI: 10.17656/sjes.10162

Azhar Nimat, A. Mohammed, A. Mohammed

{"title":"Evaluation of Fracture Mechanics Parameters of Light-weight Concrete by Implementing Natural Pumice Stone as Coarse Aggregate","authors":"Azhar Nimat, A. Mohammed, A. Mohammed","doi":"10.17656/sjes.10162","DOIUrl":"https://doi.org/10.17656/sjes.10162","url":null,"abstract":"The concrete material softening response curve is essential for accurate numerical analysis of concrete. The tensile strength, initial fracture energy, and total fracture energy are the three parameters of interest in defining such softening response. Among them, the fracture energy is usually regarded in any analytical program that attempts to model reinforced concrete (RC) structures' behavior. The brittleness and fracture characteristics of lightweight concrete (LWC) produced from 19 mm maximum size natural pumice stone aggregate were investigated via testing notched beam specimens under three-point bending test. Fracture parameters were analyzed and explained using the size effect method (SEM) and the work of fracture method (WFM), and the results were compared to those found in the published literature. The results show mean total fracture energy (GF) of 145.65 N/m and a mean characteristic length (Lch) of 590.34 mm. Later, by correlating the result obtained via this method to the SEM approach, the initial fracture energy (Gf) was determined with a mean value of 58.26 N/m and the fracture toughness (KIC) was found to be 38.47 MPa.mm 0.5. Lightweight concrete was found to be more ductile and need more energy to propagate fracture across the specimen, as shown by a comparison of current data to that acquired from literature.","PeriodicalId":307862,"journal":{"name":"Sulaimani Journal for Engineering Sciences","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125597188","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 Work on Using Fully Wrapped Post-Tensioned Metal Straps Around Normal Steel Reinforced Beams to Increase Flexural Strength of R.C Beams 在普通钢筋梁周围采用全包后张金属带提高钢筋混凝土梁抗弯强度的试验研究

Sulaimani Journal for Engineering Sciences Pub Date : 2021-08-01 DOI: 10.17656/sjes.10147

Wrya Abdullah, Avesta Omer, S. Rafiq

引用次数: 2

Mechanical properties of concrete reinforced with hybrid polypropylene- PET waste fibers 聚丙烯- PET杂化废纤维增强混凝土的力学性能

Sulaimani Journal for Engineering Sciences Pub Date : 2021-08-01 DOI: 10.17656/sjes.10144

Sary Hussein, A. Mohammed

引用次数: 0

Image Processing Techniques-based fire detection 基于图像处理技术的火灾探测

Sulaimani Journal for Engineering Sciences Pub Date : 2021-08-01 DOI: 10.17656/sjes.10145

Awadallah M. Ahmed, O. Sharif

引用次数: 0

Mechanical Properties of Normal Strength Concrete Containing Different Types of Waste Material as Coarse Aggregate Replacement 不同废料替代粗骨料的正强混凝土力学性能研究

Sulaimani Journal for Engineering Sciences Pub Date : 2020-12-30 DOI: 10.17656/SJES.10141

P. Aziz, M. Abdulkadir

{"title":"Mechanical Properties of Normal Strength Concrete Containing Different Types of Waste Material as Coarse Aggregate Replacement","authors":"P. Aziz, M. Abdulkadir","doi":"10.17656/SJES.10141","DOIUrl":"https://doi.org/10.17656/SJES.10141","url":null,"abstract":"In this study, the effect of different types of waste materials on the mechanical properties of normal strength concrete was investigated. Three types of waste material crumbed rubber, granular plastic, and crushed brick with different percentage up to 15% ( by weight of coarse aggregate) were used. The effect of waste material on the compressive strength, splitting tensile strength, and static elastic modulus of hardened concrete for 28 days of curing with constant w/c= 0.45 were studied. The maximum loss in concrete compressive strength was recorded to be 54.95%, 50.31%, and 20.41% for concrete mix with 15% crumbed rubber and plastic aggregate and 5% crushed brick particles. Maximum reduction in splitting tensile strength noticed to be 65%, 43.15%, and 13.59% for 15% replacement of crumbed rubber, granular plastic, and crushed brick respectively. The maximum loss in static elastic modulus was found to be 48.29%, 27.14, and 11.23% for concrete mix with 15% crumbed rubber, granular plastic, and 5% crushed brick. From test results it is concluded that up to 15% waste material can be safely used to produce this type of recycled concrete.","PeriodicalId":307862,"journal":{"name":"Sulaimani Journal for Engineering Sciences","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125746565","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: 3