Modern Environmental Science and Engineering最新文献

Forecast of Monthly Rainfall Time Series on the Catumbela Watershed With (S)ARIMAX Models 用(S)ARIMAX模式预测Catumbela流域月降水时间序列

Modern Environmental Science and Engineering Pub Date : 2022-10-08 DOI: 10.15341/mese(2333-2581)/10.08.2022/003

Arlon André, Vivaldo Palanga

{"title":"Forecast of Monthly Rainfall Time Series on the Catumbela Watershed With (S)ARIMAX Models","authors":"Arlon André, Vivaldo Palanga","doi":"10.15341/mese(2333-2581)/10.08.2022/003","DOIUrl":"https://doi.org/10.15341/mese(2333-2581)/10.08.2022/003","url":null,"abstract":"Abstract: Time series data often brings about the monitoring of hydrological processes. Most hydrological data are within time, connecting their analysis indirectly with the time component. When analysing time series, it is crucial to consider the fact that it consists of an internal structure (e.g., autocorrelation, trend, or seasonal variation) where data points are considered over time, therefore, forecasting hydrological data is a crucial step regarding the performance of environmental models, engineering, and research applications, and thus, it presents a significant challenge. Due to the substandard quality of precipitation data, poor results are attained then to amend it, accurate planning and management of water resources should be achieved by relying on the presence of accurately consistent precipitation data in meteorology stations. This paper aims to give a brief overview and find optimal parameters to build a Seasonal Autoregressive Integrated Moving Average (SARIMA) model using the grid search method, diagnosing time series prediction, validating the predictive rainfall, and performing rainfall forecast for the Biópio hydrological stations in the Catumbela River till 1969.","PeriodicalId":424774,"journal":{"name":"Modern Environmental Science and Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130424896","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

Study of Incidence and Prevalence Rate of Three Water-Related Diseases in the Beninese Mono Basin 贝宁Mono盆地三种与水有关的疾病的发病率和患病率研究

Modern Environmental Science and Engineering Pub Date : 2022-10-08 DOI: 10.15341/mese(2333-2581)/10.08.2022/005

Amoussou Yvon Lionel, Djaouga Mama, Kpokpo Roche, Late Enoc, Senou Rodrigue, Thomas Omer, Agbahungba Georges, Avahounlin Fernand, Vissin Expédit

引用次数: 0

Self-assessment Checklists for Internal Audits on Design Requirements in Italian PET Imaging Centers and Cyclotron Facilities 意大利PET成像中心和回旋加速器设施设计要求内部审计的自我评估清单

Modern Environmental Science and Engineering Pub Date : 2022-10-08 DOI: 10.15341/mese(2333-2581)/10.08.2022/002

Gian Marco Contessa, D’Avanzo M. A., De Crescenzo S., Mattozzi M., Poli G. L., Sandri S., Campanella F.

引用次数: 0

Proof of Concept Project: Temperature Measurement Using Lora Sensors on the Bridge Over the Danube River Near Smederevo Kovin 概念验证项目:在Smederevo Kovin附近的多瑙河桥上使用Lora传感器进行温度测量

Modern Environmental Science and Engineering Pub Date : 2022-10-08 DOI: 10.15341/mese(2333-2581)/10.08.2022/004

Ilija Neden Dimitriu, Marko Bajic, Mirko Bulatovic

{"title":"Proof of Concept Project: Temperature Measurement Using Lora Sensors on the Bridge Over the Danube River Near Smederevo Kovin","authors":"Ilija Neden Dimitriu, Marko Bajic, Mirko Bulatovic","doi":"10.15341/mese(2333-2581)/10.08.2022/004","DOIUrl":"https://doi.org/10.15341/mese(2333-2581)/10.08.2022/004","url":null,"abstract":"Abstract: On the road network in the Republic of Serbia, is establish monitoring of parameters at certain points of road network for the needs of the organization that deals with road maintenance and implementation of PBMC (Performance based Maintenance Contract), which has a need for mass collection of data from roads and road facilities. One of the parameter is the temperature, whose measurement on the bridge structure over the Danube near Kovin/Smederevo will be the primary focus of this paper. New technology Lo Ra sensors were used to collect temperature data. This type of sensor has low energy consumption so it does not require a specially implemented power supply. The service life of such sensors is estimated at a minimum of 5 years in environmental conditions. Communication is achieved using Lo Ra WAN technology that requires an access communication point at a distance of up to 8 km from the sensor with a bandwidth capacity of 3 kbps to 50 kbps. This sensor allows the measurement and collection of temperature data as a primary function and is also able to measure local acceleration in three axes on the structural element on which it is mounted. This way of collecting data using wireless sensors with low power consumption significantly improves efficiency and economy in the field of road maintenance and monitoring.","PeriodicalId":424774,"journal":{"name":"Modern Environmental Science and Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130452924","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

Kinetics of Imbibition and Light Quality in Echinocactus Platyacanthus LK & O Germination 白棘棘爪LK & O萌发吸胀及光质动力学研究

Modern Environmental Science and Engineering Pub Date : 2022-09-08 DOI: 10.15341/mese(2333-2581)/09.08.2022/003

María Elena Quintana Sierra

{"title":"Kinetics of Imbibition and Light Quality in Echinocactus Platyacanthus LK & O Germination","authors":"María Elena Quintana Sierra","doi":"10.15341/mese(2333-2581)/09.08.2022/003","DOIUrl":"https://doi.org/10.15341/mese(2333-2581)/09.08.2022/003","url":null,"abstract":"Given that germination is a crucial stage in the development of plants, it is essential to carry out studies on the factors that affect this phase. The optimal conditions for each species should also be defined, especially those that, by their nature, present such problems in their propagation and conservation that render them vulnerable. Many species of the cacti family belong to this group, so this research aims to contribute to the knowledge of some factors that impact the germination of Echinocactus platyacanthus. The first purpose of this work was to describe the kinetics of scarified seeds imbibition at 25, 30, and 35°C and their impact on the germination response. The evaluation of the effects of red light on the germinative response was established as a second purpose. The results showed that the imbibition process in scarified seeds fits a curve of the Weibull model, with 15.03, 15.62, and 18.84 hours α coefficients, and 0.08, 0.09, and 0.45 β coefficients for temperatures of 25, 30, and 35°C, respectively. In non-scarified seeds, the coefficients were 10.85, 13.11, and 13.06 hours α, and 0.12, 0.10, and 0.08 β for temperatures of 25, 30, and 35°C, respectively. Scarification and temperature favor rapid water uptake. The imbibition behavior is similar under both conditions, unlike the final germination percentage. Temperature influences the imbibition percentage and favors germination since the temperature of 35°C registered over 90%. The seeds irradiated with red light recorded 96% germination at 144 and 168 hours, confirming that light quality influences this response. A possible physical latency and mechanical dormancy are ruled out, demonstrating positive photodormancy. Key words: photodormancy, cactus, red light, scarification, germination","PeriodicalId":424774,"journal":{"name":"Modern Environmental Science and Engineering","volume":"15 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114384724","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 Study on Characteristics of Massive Fracturing Flow Back Fluid 大规模压裂返流液特性实验研究

Modern Environmental Science and Engineering Pub Date : 2022-09-08 DOI: 10.15341/mese(2333-2581)/09.08.2022/001

Q. Wang

{"title":"Experimental Study on Characteristics of Massive Fracturing Flow Back Fluid","authors":"Q. Wang","doi":"10.15341/mese(2333-2581)/09.08.2022/001","DOIUrl":"https://doi.org/10.15341/mese(2333-2581)/09.08.2022/001","url":null,"abstract":"In Daqing oilfield, the produced water from fracturing cannot consistently meet the standard, especially the suspended solids. In order to improve the current produced water treatment, the basic properties of produced water from fracturing are monitored and analyzed, the separation properties of fracturing fluid, fracturing produced water and ordinary produced water were investigated and compared. Experimental results show that the separation of the fracturing produced water is more difficult than that of ordinary produced water, separation measures should be strengthened to improve the separation efficiency. Filtration technology has obvious effect on the removal of suspended solids. Centrifugal separation technology has a good effect on the treatment of fractured water, but which need to consider the size, construction investment, operation and maintenance costs and other factors. Air flotation technology has obvious effect on the removal of oil and suspended solids, the removal rate of oil content and suspended solids in more than 73.4 percent and 63.6 percent separately, industrial application can be considered. Key words: the fracturing fluid, the produced water, the basic characteristics, the separation characteristics","PeriodicalId":424774,"journal":{"name":"Modern Environmental Science and Engineering","volume":"365 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124592742","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

Hydrological Modeling of the Cambamba Watershed in Angola Using the HEC-HMS Model 基于HEC-HMS模型的安哥拉Cambamba流域水文模拟

Modern Environmental Science and Engineering Pub Date : 2022-09-08 DOI: 10.15341/mese(2333-2581)/09.08.2022/002

Arlon André

{"title":"Hydrological Modeling of the Cambamba Watershed in Angola Using the HEC-HMS Model","authors":"Arlon André","doi":"10.15341/mese(2333-2581)/09.08.2022/002","DOIUrl":"https://doi.org/10.15341/mese(2333-2581)/09.08.2022/002","url":null,"abstract":"When evaluating the impact of climate change on water resources in river basins it is crucial to accurately estimate the availability of water and such can be attained through hydrological modeling of the basin. The studies of the Hydrological Modeling System (HEC-HMS) for the Cambamba River Basin in Angola has been calibrated and validated for the prediction of its hydrologic response. Due to the complexity of Hydrologic models, a good calibration of the model should be established, therefore, improving its skills and effectiveness. A combination of both the energy budget and a physically-based rainfall-runoff model, which are used for the estimation of lake evaporation, were applied in the lake water balance model. Soil storage, as well as groundwater storage coefficient, are essential parameters for estimating the simulated streamflow. For an adequate performance evaluation of the model which entails the simulation of the streamflow on Cambamba watershed and quantification of water availability, The Nash-Sutcliffe model efficiency criterion; root mean square error; percentage error in volume PEV; and percentage error in peak PEP, were implemented. Model performance is improved by using semiannual parameter sets that consider the change in hydrological conditions, as evaluated in this study. Key words: HEC-HMS, watershed, rainfall-runoff, flood hazards","PeriodicalId":424774,"journal":{"name":"Modern Environmental Science and Engineering","volume":"2 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128288228","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

Effective Change Management for Project Success 项目成功的有效变更管理

Modern Environmental Science and Engineering Pub Date : 2022-09-08 DOI: 10.15341/mese(2333-2581)/09.08.2022/006

Josip Nad

{"title":"Effective Change Management for Project Success","authors":"Josip Nad","doi":"10.15341/mese(2333-2581)/09.08.2022/006","DOIUrl":"https://doi.org/10.15341/mese(2333-2581)/09.08.2022/006","url":null,"abstract":"Change management applies a structured approach to effectively transition individuals, business processes and organizations from the current to the desired future state. On an example of a corporate business project, the paper analyses three types of business changes that most often occur as a consequence of large-scale projects: changes in the functionality of equipment and systems, changes in regular business procedures, and changes in the organizational structure. The changes presented in the paper are caused by a powerful business requirement, accompanied by new equipment and devices, new rules, new positions and new individuals. The main activities pertaining to change management analyzed include drafting an activity plan, assessing the impact of change on business, communicating with all levels of business hierarchy, monitoring the implementation of all parts of the change, and planning and controlling the necessary educational and training programmes for all project participants and business users. The paper ends with the comparison of three basic ways of change management: mechanical management with strict adherence to previously defined procedures, experiential management with active action, and intuitive management with occasional participation in project management. Key words: changes, projects, change management","PeriodicalId":424774,"journal":{"name":"Modern Environmental Science and Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114694887","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 Influence of Natural Cycles on Climate Change 自然循环对气候变化的影响

Modern Environmental Science and Engineering Pub Date : 2022-09-08 DOI: 10.15341/mese(2333-2581)/09.08.2022/004

G. Jovanović

引用次数: 0

Effect of Power Quality on Production Reliability and Stability of Water Treatment Plant at Vodovod-Osijek 电能质量对Vodovod-Osijek水厂生产可靠性和稳定性的影响

Modern Environmental Science and Engineering Pub Date : 2022-09-08 DOI: 10.15341/mese(2333-2581)/09.08.2022/005

Davor Junušić

{"title":"Effect of Power Quality on Production Reliability and Stability of Water Treatment Plant at Vodovod-Osijek","authors":"Davor Junušić","doi":"10.15341/mese(2333-2581)/09.08.2022/005","DOIUrl":"https://doi.org/10.15341/mese(2333-2581)/09.08.2022/005","url":null,"abstract":"Power quality issues are pervasive in most industries. The system operator and the network user are responsible for the power quality at the point of common coupling (PCC). Since a water treatment plant must operate continuously, a reliable and continuous power supply of satisfactory quality is necessary in accordance with HRN EN 50160:2012. Additionally, the electromagnetic feedback of load consumption on the power grid must be within the permitted values prescribed by the Distribution System Grid Code (Official Gazzete nos. 74/18, 52/20). The low-voltage power grid of the “Nebo Pustara” water treatment plant contains sensitive electric and electronic loads. As such, the loads require a power supply of satisfactory quality. Moreover, these loads have non-linear voltage/current characteristics and as such negatively affect power quality. In order to prevent the effects of poor power quality on the water treatment plan operation and to reduce the impermissible effect of non-linear loads on the power grid, the “Nebo Pustara” power sub-station was outfitted with a PQube3 power quality analyzer. This paper presents the results of the power quality analysis. Additionally, the paper details the actions taken in the user and distribution power grid to increase effect production reliability and stability of the water treatment plant and water supply, with the aim of reducing the negative effect on plant operation and equipment and also reducing the impermissible feedback of non-linear loads. Key words: power quality, water for human consumption, production reliability and stability of water treatment plant and water supply, Nebo Pustara, PQube3","PeriodicalId":424774,"journal":{"name":"Modern Environmental Science and Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122660749","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