IOP Conference Series: Earth and Environmental Science最新文献_第8页

An initial evaluation of humidified discharge cycle for liquid air energy storage 用于液态空气储能的加湿放电循环初步评估

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-31 DOI: 10.1088/1755-1315/1380/1/012004

Ana Borissova, Kaloyan Hristov and Dimityr Popov

引用次数: 0

Modelling of hydrocarbon synthesis process using barrier discharge 利用阻挡放电模拟碳氢化合物合成过程

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-31 DOI: 10.1088/1755-1315/1380/1/012008

I.K. Iliev, A. R. Gizzatullin, A. A. Filimonova, N. D. Chichirova, V.E. Malanichev and Plamen G. Kangalov

引用次数: 0

Simulation of winter heat fluxes through a clay wall with added wheat straw using the finite element method 利用有限元法模拟冬季通过添加了小麦秸秆的粘土墙的热通量

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-31 DOI: 10.1088/1755-1315/1380/1/012007

L Tashkov and P Zlateva

引用次数: 0

Detection of new oil palm fruit bunches based on deep learning 基于深度学习的新油棕果穗检测

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-31 DOI: 10.1088/1755-1315/1379/1/012003

Harmiansyah, E P Sembiring, E T Oviana and Supriyanto

{"title":"Detection of new oil palm fruit bunches based on deep learning","authors":"Harmiansyah, E P Sembiring, E T Oviana and Supriyanto","doi":"10.1088/1755-1315/1379/1/012003","DOIUrl":"https://doi.org/10.1088/1755-1315/1379/1/012003","url":null,"abstract":"The Indonesian oil palm plantation experiences a production rate of fresh fruit bunches and crude palm oil (CPO) influenced by the quality of fruits with excellent and uniform maturity accepted by the palm oil processing factory. The uniformity of fruit quality produced from the harvesting process through fruit maturity criteria, namely fractions 00, fraction 1, fraction 3, and fraction 4, necessitates the need for maturity detection based on deep learning with a pre-trained YOLOv5 model capable of detecting the maturity of new oil palm fruit bunches. The aim is to develop a deep learning-based maturity detection model based on visual images and analyse the deep learning algorithm’s performance by classifying the maturity level of new oil palm fruit bunches. The method collects a dataset of new oil palm fruit bunches with 4180 images. The collected dataset will be annotated with Roboflow, so the annotation results will undergo training, validation, and testing processes using the deep learning script. The result obtained for the data found to detect the ripeness levels of Fresh Fruit Bunches (FFB), shows that the YOLOv5 model demonstrates strong performance with an accuracy reaching 72.5% in testing, which falls into the category of fair annotation. These results indicate that the system created and used is functioning well.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":"169 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141945225","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

Potential for developing an intercropping system on oil palm fields in peatlands 在泥炭地油棕田发展间作系统的潜力

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-31 DOI: 10.1088/1755-1315/1379/1/012004

Y F Arifin, I Noor, A Budiman and A D Wibowo

{"title":"Potential for developing an intercropping system on oil palm fields in peatlands","authors":"Y F Arifin, I Noor, A Budiman and A D Wibowo","doi":"10.1088/1755-1315/1379/1/012004","DOIUrl":"https://doi.org/10.1088/1755-1315/1379/1/012004","url":null,"abstract":"Planting using a monoculture method is believed to impact the diversity of plant species on oil palm plantations, especially on peatlands, so the discourse on cultivating oil palm plantations using a polyculture system is to enrich species and avoid fears of environmental damage. It is necessary to conduct a study to determine the potential impact of an intercropping system between oil palm and other crops on the Land Equivalent Ratio (LER) value, intra and interspecific competition between plants, and reducing soil fertility. Data was obtained through a literature review and Forum Group Discussion (FGD) in a quadruple helix system comprising academia, farmer groups, district plantation services, and companies. Various literature studies showed that polyculture planting with an intercropping system reduces or inhibits palm oil production in peatland, but it can increase LER > 1.5. This is in line with the results of the FGD, which shows that planting using an intercropping system causes delays in palm oil production; consequently, the farmers and palm oil companies prefer monoculture planting. However, from the results of the FGD, a solution was obtained to overcome the above problems by arranging the planting distance when planting was planned, namely with a broader distance of 10 x 10 m or with a population of 100-110 plants per hectare, so that there is enough space to carry out intercropping and reduce competition. The results showed that polyculture planting with an intercropping system could also enrich plant species, apart from having the potential to increase LER > 1.5.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":"199 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141945226","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 effect of mycorrhiza on the growth of Ylang-Ylang seedlings 菌根对依兰树苗生长的影响

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-31 DOI: 10.1088/1755-1315/1379/1/012005

Y M M Anita Nugraheni, Irdika Mansur and Erina Sulistiani

引用次数: 0

Peer Review Statement 同行评审声明

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-31 DOI: 10.1088/1755-1315/1379/1/011002

引用次数: 0

Basics of the advanced calculating method the fire resistance of the section of an eccentrically compressed reinforced concrete element 偏心受压钢筋混凝土构件截面耐火性能先进计算方法的基础知识

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-01 DOI: 10.1088/1755-1315/1376/1/012009

S V Butenko, M V Iakymenko, S M Koliesnikov

{"title":"Basics of the advanced calculating method the fire resistance of the section of an eccentrically compressed reinforced concrete element","authors":"S V Butenko, M V Iakymenko, S M Koliesnikov","doi":"10.1088/1755-1315/1376/1/012009","DOIUrl":"https://doi.org/10.1088/1755-1315/1376/1/012009","url":null,"abstract":"The paper considers the issue of some special features in fire resistance calculations of an eccentrically compressed reinforced concrete element and propose new approach for calculating the fire resistance, based on the advanced formula of the stress-strain diagram for concrete depending on temperature. It has been shown that due to the change of the temperature field during a fire a change in the strength and deformation characteristics of concrete and reinforcing steel occurs as well, which, accordingly, leads to a change in eccentricity over time, that is, the eccentricity value is variable and depends both on the internal characteristics of the element (class of concrete, reinforcement) and from external factors (type of fire, time, loading). Formulas for calculating the eccentricity of an eccentrically compressed rod reinforced concrete element for a specific fixed moment of time are presented. There are also given the coordinates of the cross-section core and the center of central compression. It is possible to obtain the dynamics of changes in the eccentricity of a compressed rod reinforced concrete element during the time of the fire by doing such calculations for certain moments of time.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141886715","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

Methods and Models of Urban Planning for Sustainable Development Processes in Agglomerations 促进城市群可持续发展进程的城市规划方法和模式

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-01 DOI: 10.1088/1755-1315/1376/1/012045

Uhodnikova Olena, Kostiantyn Viatkin, Kolodezny Andrii

{"title":"Methods and Models of Urban Planning for Sustainable Development Processes in Agglomerations","authors":"Uhodnikova Olena, Kostiantyn Viatkin, Kolodezny Andrii","doi":"10.1088/1755-1315/1376/1/012045","DOIUrl":"https://doi.org/10.1088/1755-1315/1376/1/012045","url":null,"abstract":"In the context of continuous population density growth in urban agglomerations and escalating challenges in ensuring sustainable development, there is a need to enhance methods and models of urban planning management to ensure the sustainable development of territories. One of the key issues is the effective management of sustainable development processes in agglomerations, taking into account population growth dynamics, environmental issues, social challenges, and infrastructure needs. The aim of this research is the development and analysis of methods and models of urban planning management aimed at supporting the sustainable development of agglomerations. The research focuses on urban agglomerations as the object of study and methods and models of urban planning management as the subject of study. The study utilizes the analysis and synthesis of existing models of managing urban agglomerations, statistical analysis of population dynamics and infrastructure data, as well as surveys of stakeholders. The author has conducted an analysis of existing methods of managing urban planning processes and developed new models aimed at achieving the sustainable development of agglomerations. The research takes into account various aspects, including housing provision, transportation solutions, environmental impact, and socio-cultural sphere. The study indicates the necessity of an integrated approach to urban planning management that considers the multifaceted nature of sustainable development in agglomerations. The research recommendations include the implementation of innovative technologies, strengthening social partnerships, and ensuring effective infrastructure to secure a sustainable future for urban agglomerations.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141886772","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

Peer Review Statement 同行评审声明

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-07-01 DOI: 10.1088/1755-1315/1376/1/011002

引用次数: 0