Journal of Advanced Sciences and Engineering Technologies最新文献_第4页

Shear strength characteristics of Jerash expansive soil 杰拉什膨胀土抗剪强度特性研究

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-12-25 DOI: 10.32441/jaset.03.02.08

Talal Masoud

引用次数: 0

Simultaneous HPLC estimation of Amphetamine and Caffeine abuse drugs in Iraqi human addicts 同时HPLC测定伊拉克人类成瘾者安非他命和咖啡因滥用药物

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-12-13 DOI: 10.32441/jaset.04.01.03

Rulla Sabah

引用次数: 2

Adaptive anti-synchronization of nuclear spin generator (NSG) systems with fully uncertain parameters 参数完全不确定核自旋发生器(NSG)系统的自适应反同步

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-12-13 DOI: 10.32441/jaset.04.01.02

L. A. Najam, Ayman Al Sawalha

引用次数: 0

Recycled Refractory Brick as Aggregate for Eco-friendly Concrete Production 再生耐火砖作为环保混凝土生产的骨料

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-12-13 DOI: 10.32441/jaset.04.01.04

M. Khattab, S. Hachemi, M.F. Al Ajlouni

{"title":"Recycled Refractory Brick as Aggregate for Eco-friendly Concrete Production","authors":"M. Khattab, S. Hachemi, M.F. Al Ajlouni","doi":"10.32441/jaset.04.01.04","DOIUrl":"https://doi.org/10.32441/jaset.04.01.04","url":null,"abstract":" The amount of construction and demolition waste continues to increase year by year.These wastes have a significant harmful influence on the environment; refractory brick is among of these wastes. this paper concerns the reuse of refractory brick wastes to produce an eco-friendly concrete. To achieve this objective,coarse and fine Natural Aggregates (NA) were partially replaced with recycled Refractory Brick Aggregates (RBA). According to the design of experiment, two families of mixes were prepared and tested: the first mixes was made with coarse and fine NA (as reference concrete) and the second mixes made by replacing 20% of coarse and fine NA by coarse and fine RBA. For each of the mentioned families, three cement dosages of 350 kg/m3 , 400 kg/m3 , 450 kg/m3 were investigated. A series of experiments including water porosity, density, Ultrasonic Pulse Velocity (UPV) and compressive strength were assessed. Observed results indicate that the use of coarse and fine RBA had a relatively influence on the water porosity and UPV of concrete. However, the use of coarse and fine RBA produces a slightly decreased the density of concrete (below 2%). Moreover, the use of coarse and fine RBA in concrete improved the compressive strength. Hence, coarse and fine RBA can be successfully used to produce concrete with acceptable properties.","PeriodicalId":431188,"journal":{"name":"Journal of Advanced Sciences and Engineering Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115481533","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: 6

Water Safety Plans -The case of Portugal 水上安全计划-葡萄牙的案例

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-12-13 DOI: 10.32441/jaset.04.01.06

Dr Mohammad Fawzi Al Ajlouni

{"title":"Water Safety Plans -The case of Portugal","authors":"Dr Mohammad Fawzi Al Ajlouni","doi":"10.32441/jaset.04.01.06","DOIUrl":"https://doi.org/10.32441/jaset.04.01.06","url":null,"abstract":"Water supply is a structural and irreplaceable service, essential to promote public health, to pursue economic activities, and crucial for environmental conservation, reflecting the population’s quality of life and the status of sustainable development. In this context, it is imperative to assure the continuous improvement of all processes and practices conducive to guarantee water quality. Water Safety Plans (WSP) are an important public policy tool to accomplish these goals. This manuscript reviews the international evidence of the adoption and implementation of WSP and reports the current situation in Jordan, as part of the necessary adjustment of the national legal framework to the publication of the Directive (EU) 2015/1787, October 6th, on water quality for human consumption. The aim is to draw lessons from several successful WSP experiments around the world and extract lessons from these cases when drafting new legislation in Portugal and elsewhere. Findings suggest there are four critical components in developing and implementing WSP: commitment, technical knowledge, governance, and interagency collaboration.\u0000© 2018. JASET, International Scholars and Researchers Association","PeriodicalId":431188,"journal":{"name":"Journal of Advanced Sciences and Engineering Technologies","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124290939","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

Building Information Modelling Technology in Mitigating Cost Overruns and change orders in Construction Projects 建筑信息模型技术在减少建筑项目成本超支和变更订单中的应用

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-12-13 DOI: 10.32441/jaset.04.01.05

Ja’far A. Aldiabat Al-Btoosh

{"title":"Building Information Modelling Technology in Mitigating Cost Overruns and change orders in Construction Projects","authors":"Ja’far A. Aldiabat Al-Btoosh","doi":"10.32441/jaset.04.01.05","DOIUrl":"https://doi.org/10.32441/jaset.04.01.05","url":null,"abstract":"Variation order (VO) is one of the main issues faced by the construction industry in Jordan. Many researchers had investigated on the causes of VO and proposed procedures to minimize and control this issue; however, the VO is affecting the construction industry badly even at moment. Building Information Modeling (BIM) is a powerful management system that can make a significant difference in the project costs. However, BIM has not been examined as a tool to minimize the VO in Jordan. The main target of this study is to utilize BIM applications in reducing the effect of VO on the governmental projects in Jordan. In order to achieve this target, the researcher has designed a questionnaire to gather data related to VO causes and the BIM capability to solve this problem. The data collected from the questionnaires were analyzed statistically. The result from the analysis found that the consultant initiated the highest VO of 50% followed by the clients and the contractors of 20% and 10% unforeseen variation respectively. Moreover, it is found that BIM Design Applications, Facility Operations Simulation, Exploration Design Scenarios, BIM Design Detection and BIM Quantity Take-off and Cost Estimation were significantly capable of minimizing VO. The results show positive relationship with the application of BIM in minimizing VO in the construction industry in Jordan. © 2018. JASET, International Scholars and Researchers Association","PeriodicalId":431188,"journal":{"name":"Journal of Advanced Sciences and Engineering Technologies","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126638431","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

Theoretical Analysis of Factors Affecting Ultimate Nominal Load of Reinforced Concrete Axially Loaded Short Squire Columns (Pu) Comparing use Prokon Program 钢筋混凝土轴向受压短柱极限公称荷载影响因素的理论分析(Pu)与Prokon程序比较

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-12-06 DOI: 10.32441/jaset.03.02.04

Yasser I. O. Yahia, M. O. Suliman, A. J. Alkherret, Shehdeh Ghannam

引用次数: 0

INVESTIGATION ON THE CAUSES AND EFFECTS OF VARIATION ORDERS IN THE CONSTRUCTION PROJECTS IN JORDAN 约旦建设项目变更订单的原因及影响调查

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-10-15 DOI: 10.32441/jaset.04.01.07

Mohammed A.KA. Al-Btoush

{"title":"INVESTIGATION ON THE CAUSES AND EFFECTS OF VARIATION ORDERS IN THE CONSTRUCTION PROJECTS IN JORDAN","authors":"Mohammed A.KA. Al-Btoush","doi":"10.32441/jaset.04.01.07","DOIUrl":"https://doi.org/10.32441/jaset.04.01.07","url":null,"abstract":"The construction industry nowadays faces several challenges that prevent it to be completed within the planned budget. the most effected challenge on the project cost is the variation orders, which became common on most construction projects. The variations in construction projects mean any change in quantity or quality of the project work. Based on various studies in the Jordanian construction industry it is found various sources of variation orders. Therefore, it is important to provide suitable recommendations to minimize variation orders during the project lifecycle. The aim of this study is to study the variation orders causes on the governmental construction project in Jordan. To meet that aim, a comprehensive literature review was conducted to locate and study the variation orders causes and its effect on construction projects worldwide. To achieve the study objectively the researcher adopted a structured questionnaire to gather the required data about the causes of VO. The collected data were analyzed statistically using the Relative Importance Index (RII). Based on the results of the study the critical causes of VO in construction projects in Jordan are grouped into main four groups such as causes related to owners, causes related to contractors, and causes related to consultants, causes related to unforeseen circumstances. The findings of the current study revealed that the critical causes of VO in the Jordanian construction industry are: unskilled laborers, inaccurate quantity take-off, shortage of human and equipment Resource, change of scope or plans by owners, absence of construction manuals and procedures , unavailability of the required labor skills , logistic delays , shortage of equipment and tools , technology changes , internal politics .Also, the results show that consultants are responsible for about 50% of the causes, 20% due to owners and unforeseen variations, and contractors are responsible for about 10% of the causes.","PeriodicalId":431188,"journal":{"name":"Journal of Advanced Sciences and Engineering Technologies","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122368927","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

Doped ZnO Nanostructured and their application as photocatalytic: as Review 掺杂ZnO纳米结构及其光催化应用综述

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2021-05-01 DOI: 10.32441/jaset.04.01.01

F. Hussein

引用次数: 1

The task of managing flows in a communication network of the X.25 protocol 管理X.25协议通信网络中的流的任务

Journal of Advanced Sciences and Engineering Technologies Pub Date : 2020-10-10 DOI: 10.32441/jaset.03.02.03

Ibrahim Ismail Abdelhadi AL Khawaldah

{"title":"The task of managing flows in a communication network of the X.25 protocol","authors":"Ibrahim Ismail Abdelhadi AL Khawaldah","doi":"10.32441/jaset.03.02.03","DOIUrl":"https://doi.org/10.32441/jaset.03.02.03","url":null,"abstract":"One of the most established and well-known standards for packet switched networks are the international standard X.25, The X.25 Recommendation defines the interface requirements between the user equipment (such as a terminal, bridge, router, and computer) and a packet switching network for data exchange X.25 network provides an efficient way to transfer data within one region, the country and even all over the world. The synchronous data transfer with a speed of up to 64 Kbps. The X.25 standards provides automatic error detection and correction, which allows X.25 networks to work effectively even in regions where the quality of communication lines is low. The X.25 interface provides Access to the remote user to the host computer (host). The X.25 standard describes the interface between the data entry equipment – DTE (Data Terminal Equipment) and data network equipment – DCE (Data Circuit terminating Equipment). Bridges, routers, terminals, personal computers (PCs), workstations are an example of equipment that can function as a (DTE) . When it is connected to a packet switched network. DTE provides the user part of the user-network interface. The equipment to which the DTE is connected is called DCE. DCE provides the network part of the user-network interface. Each DTE has its own DCE. However, several DTE devices can be connected to the same DCE. DTE-DTE connection is invalid; communication is only possible between DTE-DCE and DCE-DCE","PeriodicalId":431188,"journal":{"name":"Journal of Advanced Sciences and Engineering Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130016198","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