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Identification of factors shaping tender prices for lightweight 确定影响轻量化投标价格的因素
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-06-30 DOI: 10.22630/PNIKS.2019.28.2.16
A. Leśniak, M. Górka, D. Wieczorek
{"title":"Identification of factors shaping tender prices for lightweight","authors":"A. Leśniak, M. Górka, D. Wieczorek","doi":"10.22630/PNIKS.2019.28.2.16","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.2.16","url":null,"abstract":"A reliable estimation of the tender prices for lightweight curtain walls is a complex and time-consuming process for the contractor, as it depends on many factors related to both the technical parameters of the designed façade and the investor’s requirements for the solutions selected. The aim of the paper is to identify the factors affecting the costs of manufacturing lightweight curtain walls. Data regarding the complexity of curtain wall construction costs was obtained on the basis of the analysis of project documentation, cost estimates and as-built accounts for selected 50 public buildings. The authors identified the factors affecting the costs of aluminum-glass facades and ventilated facades. Their identification is the first element necessary to develop a new method of predicting the costs of implementation of such types of facade which are included in the authors’ research plans.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303266","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
A study on soil-geotextile interaction using gradient ratio tests 用梯度比试验研究土-土工织物相互作用
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-06-30 DOI: 10.22630/PNIKS.2019.28.2.22
Anna Miszkowska
{"title":"A study on soil-geotextile interaction using gradient ratio tests","authors":"Anna Miszkowska","doi":"10.22630/PNIKS.2019.28.2.22","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.2.22","url":null,"abstract":"Nonwoven geotextile have been widely used for filtration. In this paper, the clogging potential for a soil-geotextile system were assessed using laboratory tests. An ASTM modified gradient ratio test device was used to determine gradient ratio as well as soil-gradient ratio. One type of nonwoven geotextile and soil were used to simulate the conditions in drainage system. The obtained results indicate that the gradient ratio and soil-gradient ratio increases with time because of clogging mechanism. However, the tested geotextile can be used as fi lter for soil with fine content of 20%.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303329","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 relation between the cost impact and mismanagement in the Middle East construction projects 中东建设项目成本影响与管理不善的关系
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-06-30 DOI: 10.22630/PNIKS.2019.28.2.19
Forat Al-Sahar
{"title":"The relation between the cost impact and mismanagement in the Middle East construction projects","authors":"Forat Al-Sahar","doi":"10.22630/PNIKS.2019.28.2.19","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.2.19","url":null,"abstract":"The creations of construction projects firstly try to achieve several specific goals. Effective projects are believed when these goals achieved. The principal concerns are to cross the downsides and defects. The stage of the performance project may be the most significant, crucial and drains of the resources through the project life cycle, its dependence on monitoring by professional in order to exceeded things blocking the path and accomplish the project plan exactly. The targets of the study are to diagnosis the actual reasons and locating the relation of mismanagement of the project execution stage and measure their influence on the cost. The study achieved and diagnoses many problems that have a negative impact on the projects management implementation as well as the effects of the cost by using many ways to reaching the target. There are 22 problems it is the main reasons that deviation the cost plus they obtain agreement level number according to Likert scale quintet.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47066999","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
Characteristics of Cμ2 derived from ultrasonic anemometer in an urban boundary layer 城市边界层超声风速仪测得的Cμ2特征
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-04-27 DOI: 10.22630/PNIKS.2019.28.1.2
M. Al-Jiboori, Sundus H. Jaber
{"title":"Characteristics of Cμ2 derived from ultrasonic anemometer in an urban boundary layer","authors":"M. Al-Jiboori, Sundus H. Jaber","doi":"10.22630/PNIKS.2019.28.1.2","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.1.2","url":null,"abstract":"Fast-response observations of three components of wind and air temperature have been applied to calculate the refractive index function coefficient (Cμ2 ), which is needed to describe optical wave propagation in a turbulent medium. These were measured by 3D ultrasonic anemometer installed on the roof of the building of Atmospheric Science Department which is 19 m above ground level. Refractive index function coeffi cient was calculated for various periods of three seasons: winter, spring and summer.Diurnal variations of (Cμ2) have been made at the surface layer for these seasons. The results show that high values ofmean (Cμ2) occurred during the day time more than at night, also they occurred more in summer than in winter and spring. The results of (Cμ2) found to change with atmospheric stability, whereas they inversely decrease under unstable conditions, approximately constant at neutral cases, and increase under stable conditions. Values of (Cμ2) on average appears to be lower during the rainy and foggy weather cases compared to those of clear sky.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303592","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
The proposal to transform an old limestone quarry into a botanical garden with a rainforest zone: a case study 将一个古老的石灰石采石场改造成一个带热带雨林的植物园:一个案例研究
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-04-27 DOI: 10.22630/PNIKS.2019.28.1.12
D. Słonina, G. Kusza, Mateusz Mikołajów
{"title":"The proposal to transform an old limestone quarry into a botanical garden with a rainforest zone: a case study","authors":"D. Słonina, G. Kusza, Mateusz Mikołajów","doi":"10.22630/PNIKS.2019.28.1.12","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.1.12","url":null,"abstract":"Nowadays, a significant part of cities is tackling the problems with post-mining areas. This manuscript is an original research which shows possibilities of their reclamation. The aim of the article is to present the proposal of developing the closed limestone quarry and creating a botanical garden. The proposed spatial solutions allow for creating a new, tourist and recreation space, maintaining the natural heritage. The work also assumed carrying out a dendrological inventory, in order to determine the existing dendrofl ora. The required spatial, nature and communication analyses, which illustrate the current condition of the area and defi ne further design works, have also been carried out. The main idea of the project was to maintain the particular biodiversity, combined with regional culture and its continuous development. This type of assumption aims not only at protection of endangered species. It also has a great role in shaping the awareness of natural environment of various social groups. The creation of a rainforest substitute in the Opole Botanical Garden was possible through selection of the existing afforestation, considering its adaptation as well as through liquidation and introduction of new trees, shrubs, perennial and climbing plants, which shall emphasise the tropical landscape type by their shapes, texture and colours. The project includes many elements, which reflect the general image of humid rainforests. The planned vegetation in connection with the appropriately selected architecture shall undoubtedly influence visitors’ senses, transferring them to the ‘wild’ and mysterious part of the world.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303511","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 environmental and landscape values of the small lowland river valley and their threats on the example of the Kraska river (Masovian Voivodeship) 低地小河谷的环境和景观价值及其对克拉斯卡河的威胁（马索维安省）
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-04-27 DOI: 10.22630/PNIKS.2019.28.1.7
Katarzyna Celejewska-Mrozek, P. Oglęcki
{"title":"The environmental and landscape values of the small lowland river valley and their threats on the example of the Kraska river (Masovian Voivodeship)","authors":"Katarzyna Celejewska-Mrozek, P. Oglęcki","doi":"10.22630/PNIKS.2019.28.1.7","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.1.7","url":null,"abstract":"The environmental and landscape values of the Kraska River Valley as the typical example of small lowland water flow path were analysed. The WULS-SGGW method, allowing to the estimation of whole valley reach as well as its peculiar eco-morphological zones, was used. The unregulated, regulated in the years 1990– –2012 and continuously maintained from the year 2015 reaches are present in the valley. It was stated that the unregulated reaches characterise themselves by higher environmental values and biological diversity, especially in the case of invertebrate fauna. The invertebrates, as the key element of the river community, quickly rebuild their structure after the termination of maintenance works. The vertebrate fauna, even unconnected strictly with the riverbed, shows higher values on the unmaintained valley reaches.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48574687","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
Zredukowane współrzędne obrysu strumienia na trapezowym progu przepuszczalnym z przelewem o ostrej krawędzi na skarpie górnej 梯形透水门槛上的简化流量等值线坐标，顶坡上有锐边溢流
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-04-27 DOI: 10.22630/pniks.2019.28.1.6
S. Bajkowski, Sebastian Piątek, Aneta Tymińska
{"title":"Zredukowane współrzędne obrysu strumienia na trapezowym progu przepuszczalnym z przelewem o ostrej krawędzi na skarpie górnej","authors":"S. Bajkowski, Sebastian Piątek, Aneta Tymińska","doi":"10.22630/pniks.2019.28.1.6","DOIUrl":"https://doi.org/10.22630/pniks.2019.28.1.6","url":null,"abstract":"The purpose of the work was to develop a typical shape of water surface profi le above trapezoidal gabion sill with the sharpcrested weir on the upstream slope. Reduced co-ordinates of the water surface profile above trapezoidal gabion sill with a sharp-crested weir on the upstream slope were developed. The ordinate points of the contour were reduced in relation to the height of the upstream water level above the sharp-crested weir. The cut off points of the contour were reduced according to the length of the zone influencing the stream to the inside of the stone sill. In the analyzes, the results of laboratory tests were used, according to which the shape of the free surface profile reduced coordinates was developed. The analyzed sill consisted of the permeable part filled natural aggregates and the solid part in the form of an inclined sharp-crested weir. The sill had a symetrical trapezoidal shape with the slopes of 1 : 1. The shape of the stream flowing over the analyzed sill depends on the head of the upstream water level above the crest of the slope weir. As a result of the conducted analyzes, a uniform stream shape was obtained for both the free and wave flow of the disturbance zone. The profiles obtained have strong correlation dependence. The obtained results can be taken into account during design similar hydraulic structures.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303201","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
Groundwater assessment at east side of Mosul City during 2014–2017 2014-2017年摩苏尔市东部地下水评估
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-04-27 DOI: 10.22630/PNIKS.2019.28.1.4
Ali Al-Abedeen Al-Ozeer, Mohammed Ahmed
{"title":"Groundwater assessment at east side of Mosul City during 2014–2017","authors":"Ali Al-Abedeen Al-Ozeer, Mohammed Ahmed","doi":"10.22630/PNIKS.2019.28.1.4","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.1.4","url":null,"abstract":"This study assesses groundwater quality GWQ at the east side of Mosul city for different purposes during 2014–2017. Eighteen shallow wells distributed in residential areas are selected and assessed by analyzing their physical, chemical and biological properties. This study reviews the textures of sub-layers by using groundwater modelling system (GMS) to show the probability of infiltration of nearby wastewater and gray water. This study analyzes epidemiological data about diarrhea cases that were increased during that period and calculating the relative, attributed and odd risk. There are three types of assessment are conducted including ranking assessment, weighted assessment and geographical information systems (GIS) assessment. A final map is created to show the most suitable area for live stock and irrigation purposes. The results show that the studied groundwater samples are unsuitable for drinking. High damage can happen for crops with sensitivity for salinity. Most wells are acceptable for live stock purpose.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303634","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: 4
Modelling the set of earthworks machinery with the use of computer simulation 利用计算机模拟对一套土方机械进行建模
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-04-27 DOI: 10.22630/PNIKS.2019.28.1.15
W. Rogala, H. Anysz
{"title":"Modelling the set of earthworks machinery with the use of computer simulation","authors":"W. Rogala, H. Anysz","doi":"10.22630/PNIKS.2019.28.1.15","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.1.15","url":null,"abstract":"The paper presents the comparison of deterministic and stochastic approach for modeling the set of earthworks machinery. Simulation takes into account the normal distribution of cycle time and efficiency of machines and points out its influence for total construction works time. Results of the simulation indicate the need of identification time and efficiency deviation as a risk factor, which can cause delay whenever earthworks cycle includes the serial work of several machines.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303577","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
Investigations of the impact of polluted natural waters on cardiovascular diseases and development of integrated prevention system 天然水体污染对心血管疾病的影响调查及综合防治体系建设
Scientific Review Engineering and Environmental Sciences Pub Date : 2019-04-27 DOI: 10.22630/PNIKS.2019.28.1.5
V. Vishnevetskiy, V. Popruzhniy
{"title":"Investigations of the impact of polluted natural waters on cardiovascular diseases and development of integrated prevention system","authors":"V. Vishnevetskiy, V. Popruzhniy","doi":"10.22630/PNIKS.2019.28.1.5","DOIUrl":"https://doi.org/10.22630/PNIKS.2019.28.1.5","url":null,"abstract":"The aim of this study was to establish the correlation between natural water pollutions and the prevalence of heart diseases. We analyzed the data from the 2014 Federal Service Report on the state of sanitary and epidemiological welfare of the population. The correlation analysis of data on mortality and primary morbidity of the population was carried out, the correlation between the quality of natural water and cardiovascular diseases of the population was established. The complex method of water quality assessment according to the data of hydrochemical monitoring of the Azov Sea and rivers flowing into it were used in the investigation, the influence of the main pollutants such as copper and manganese on the dynamics of cardiovascular diseases according to mortality and primary morbidity for the population of Taganrog was considered. As conclusion we can state that statistical association between water intake and heart diseases exists in the region of analysis. However, further studies on water intake are needed to confirm our findings.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303186","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
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