发布求助
文献互助 智能选刊 最新文献

Contemporary engineering sciences最新文献

筛选
英文 中文
Análise da qualidade da água e detecção do agrotóxico glifosato em sedimentos da bacia hidrográfica do Ribeirão São João em Porto Nacional -TO 波尔图国家-TO ribeirao sao joao流域沉积物中水质分析和农药草甘膦检测
Contemporary engineering sciences Pub Date : 2021-10-02 DOI: 10.6008/cbpc2318-3055.2021.002.0001
Ângelo Ricardo Balduíno, Valéria Rodrigues Macedo
{"title":"Análise da qualidade da água e detecção do agrotóxico glifosato em sedimentos da bacia hidrográfica do Ribeirão São João em Porto Nacional -TO","authors":"Ângelo Ricardo Balduíno, Valéria Rodrigues Macedo","doi":"10.6008/cbpc2318-3055.2021.002.0001","DOIUrl":"https://doi.org/10.6008/cbpc2318-3055.2021.002.0001","url":null,"abstract":"A bacia hidrográfica do Ribeirão São João, situado no município de Porto Nacional- TO, é o principal manancial de captação para abastecimento urbano. Esta principal fonte vem sofrendo diversas agressões como, exploração da agricultura e pecuária, onde se localizam captações para irrigação. Neste estudo foi realizado o acompanhamento da qualidade das águas do Ribeirão São João. Por se tratar de um recurso hídrico de Classe Dois de água doce, pode ser destinada para abastecimento para consumo humano, natação, irrigação de hortaliças, parques, jardins, à aquicultura e à pesca. Para análise do cálculo de Índice de Qualidade da Água da Fundação Estadual do Meio Ambiente (IQA- FEAM), foram ponderados nove parâmetros: pH, temperatura, turbidez, sólidos dissolvidos totais, oxigênio dissolvido, demanda bioquímica de oxigênio, fósforo total, nitrogênio total e coliformes termotolerantes e, a concentração do agrotóxico glifosato nos sedimentos do reservatório. Os resultados alcançados demonstraram que a água do Ribeirão São João pode ser classificada como de qualidade mediana com valor igual a 69, segundo a FEAM, mesmo com alguns parâmetros em desacordo comparados à legislação ambiental com os padrões determinados pela Resolução 357/2005 do Conselho Nacional do Meio Ambiente (CONAMA). Quanto à concentração de glifosato, a média obtida foi de 0,03 μg/L, inferior ao valor limite de 0,65 μg/L. A presença da substância química, provavelmente, veio das chuvas ocasionadas nesse período em estudo.","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88445196","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
Application of an Integrated Approach to Study Flooding in Coastal Areas 综合方法在沿海地区洪水研究中的应用
Contemporary engineering sciences Pub Date : 2021-08-04 DOI: 10.7546/engsci.lviii.21.03.01
J. Pan, V. Penchev, J. Zhang, J. H. Wang, D. Dragancheva, M. Xiong, F. Penchev, D. T. Wang, S. Shukrieva
{"title":"Application of an Integrated Approach to Study Flooding in Coastal Areas","authors":"J. Pan, V. Penchev, J. Zhang, J. H. Wang, D. Dragancheva, M. Xiong, F. Penchev, D. T. Wang, S. Shukrieva","doi":"10.7546/engsci.lviii.21.03.01","DOIUrl":"https://doi.org/10.7546/engsci.lviii.21.03.01","url":null,"abstract":"","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82341031","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
Computational Fluid Dynamics Prediction of the Resistance of Modern Container Ships 现代集装箱船阻力的计算流体力学预测
Contemporary engineering sciences Pub Date : 2021-08-04 DOI: 10.7546/engsci.lviii.21.03.04
Kiril Todorov
{"title":"Computational Fluid Dynamics Prediction of the Resistance of Modern Container Ships","authors":"Kiril Todorov","doi":"10.7546/engsci.lviii.21.03.04","DOIUrl":"https://doi.org/10.7546/engsci.lviii.21.03.04","url":null,"abstract":"","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73535753","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
On the EU Green Deal and Building Branch 关于欧盟绿色协议和建筑分部
Contemporary engineering sciences Pub Date : 2021-08-04 DOI: 10.7546/engsci.lviii.21.03.05
Yatchko Ivanov, A. Yanakieva, R. Kazandjiev
{"title":"On the EU Green Deal and Building Branch","authors":"Yatchko Ivanov, A. Yanakieva, R. Kazandjiev","doi":"10.7546/engsci.lviii.21.03.05","DOIUrl":"https://doi.org/10.7546/engsci.lviii.21.03.05","url":null,"abstract":"","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88011132","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
Fractography Analysis of Supporting Elements Fractured Under Operating Conditions 作业条件下支撑构件断裂断口分析
Contemporary engineering sciences Pub Date : 2021-08-04 DOI: 10.7546/engsci.lviii.21.03.06
V. Dyakova
{"title":"Fractography Analysis of Supporting Elements Fractured Under Operating Conditions","authors":"V. Dyakova","doi":"10.7546/engsci.lviii.21.03.06","DOIUrl":"https://doi.org/10.7546/engsci.lviii.21.03.06","url":null,"abstract":"","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84290413","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
Approaches to Determining the Attenuation of Electromagnetic Waves from the Centimeter Range in Dielectric Composite Materials 介电复合材料中厘米范围电磁波衰减的测定方法
Contemporary engineering sciences Pub Date : 2021-08-04 DOI: 10.7546/engsci.lviii.21.03.07
Nikolay Gueorguiev, A. Semenov, S. Ivashov
{"title":"Approaches to Determining the Attenuation of Electromagnetic Waves from the Centimeter Range in Dielectric Composite Materials","authors":"Nikolay Gueorguiev, A. Semenov, S. Ivashov","doi":"10.7546/engsci.lviii.21.03.07","DOIUrl":"https://doi.org/10.7546/engsci.lviii.21.03.07","url":null,"abstract":"","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82156225","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
Mechanical Loss Spectrum of the Fe-20%Ni-C Alloys in the Temperature Interval 300 K–700 K Fe-20%Ni-C合金在300 K - 700 K温度区间的力学损耗谱
Contemporary engineering sciences Pub Date : 2021-08-04 DOI: 10.7546/engsci.lviii.21.03.03
S. Parshorov, I. Parshorov
{"title":"Mechanical Loss Spectrum of the Fe-20%Ni-C Alloys in the Temperature Interval 300 K–700 K","authors":"S. Parshorov, I. Parshorov","doi":"10.7546/engsci.lviii.21.03.03","DOIUrl":"https://doi.org/10.7546/engsci.lviii.21.03.03","url":null,"abstract":"","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80674193","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
High Sensitive Quartz Temperature Sensors 高灵敏度石英温度传感器
Contemporary engineering sciences Pub Date : 2021-08-04 DOI: 10.7546/engsci.lviii.21.03.02
L. Spassov
{"title":"High Sensitive Quartz Temperature Sensors","authors":"L. Spassov","doi":"10.7546/engsci.lviii.21.03.02","DOIUrl":"https://doi.org/10.7546/engsci.lviii.21.03.02","url":null,"abstract":"","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"75 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87830611","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
Numerical and Experimental Generation of Freak Waves 反常波的数值和实验生成
Contemporary engineering sciences Pub Date : 2021-05-10 DOI: 10.7546/ENGSCI.LVIII.21.02.06
N. Markov, G. Nikolov, R. Kishev
{"title":"Numerical and Experimental Generation of Freak Waves","authors":"N. Markov, G. Nikolov, R. Kishev","doi":"10.7546/ENGSCI.LVIII.21.02.06","DOIUrl":"https://doi.org/10.7546/ENGSCI.LVIII.21.02.06","url":null,"abstract":"Control signals with simultaneous modulation of periods and amplitudes were finetuned and fed to a wave flap for a generation of freak waves. The meshless Smoothed Particle Hydrodynamics method was used to predict the location and the amplitude of the maximum wave crest. The time series output from the DualSPHysics software was validated experimentally at the BSHC seakeeping wave basin. The experimental data is in good agreement with the simulations.","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"8 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87963662","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
Determining the Asymmetric Rudder Efficiency of a Twin Rudder Patrol Ship at Manoeuvring 双舵巡逻舰机动时非对称舵效率的确定
Contemporary engineering sciences Pub Date : 2021-05-10 DOI: 10.7546/ENGSCI.LVIII.21.02.03
Dobrin Efremov
{"title":"Determining the Asymmetric Rudder Efficiency of a Twin Rudder Patrol Ship at Manoeuvring","authors":"Dobrin Efremov","doi":"10.7546/ENGSCI.LVIII.21.02.03","DOIUrl":"https://doi.org/10.7546/ENGSCI.LVIII.21.02.03","url":null,"abstract":"","PeriodicalId":10543,"journal":{"name":"Contemporary engineering sciences","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91293129","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信