INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021)最新文献_第8页

Analysis of mercury (Hg) levels in the Patipulu River ecosystem, Kaiely Village, Buru Island 布鲁岛Kaiely村Patipulu河生态系统汞含量分析

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059520

Y. Male, Leonardo F. Sahuburua

引用次数: 0

Preparation of pH test strip based on immobilized Tectona grandis L. leaf extract on the alginate-chitosan membrane 海藻酸-壳聚糖膜固定化大叶提取物制备pH试纸条

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059599

N. Ismillayli, Rahayu Juniharti, Septia Hadiyati, D. Hermanto

引用次数: 1

Self potential (SP) measurement in the geothermal field of Penantian and Airkelinsar Village, Pasemah Airkeruh District, Empat Lawang Regency, South Sumatra Province 南苏门答腊省Empat Lawang县Pasemah Airkeruh区Penantian和Airkelinsar村地热场自电位(SP)测量

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059524

A. Y. Elake, F. Virgo, P. Nanlohy

引用次数: 0

Operational efficiency of 30 GT purse seine fishing equipment 30gt围网捕鱼设备的作业效率

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059479

H. C. Ririmasse, D. R. Lekatompessy, Alfredo Tutuhatunewa

{"title":"Operational efficiency of 30 GT purse seine fishing equipment","authors":"H. C. Ririmasse, D. R. Lekatompessy, Alfredo Tutuhatunewa","doi":"10.1063/5.0059479","DOIUrl":"https://doi.org/10.1063/5.0059479","url":null,"abstract":"The high operational cost for purse seine fishing vessel makes fishing gear’s efficiency on this type of vessel is crucial. The economic improvement of fishers and boat owners is very dependent on this effort. Efficient fishing technology will reduce fishing operating costs with a larger number of catches. The description above indicates a need for research on the effect of changing fishing patterns after engine power efficiency has. The calculation is carried out on fishing gear equipment, namely power block, net length, net weight of the net, and net sinking speed on fishing operations’ efficiency. With the efficiency of fishing gear, the income of fishers increases more than the income before efficiency is carried out. The efficiency of fishing operations is strongly influenced by fuel, crew members’ consumption, fishing patterns, number of crew members, and operational effectiveness. Data analysis was carried out in two stages, namely regression analysis and efficiency analysis. Regression analysis aims to determine the magnitude of ship speed on fish catch, and efficiency analysis aims to determine engine power efficiency, operating time efficiency, hold efficiency and fishing gear efficiency. The results show that the calculation of engine power efficiency is about 75%, the operating time efficiency is around 55%, the hold efficiency is around 35%, and the fishing gear efficiency is around 73%.","PeriodicalId":13712,"journal":{"name":"INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021)","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74688163","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

Vibration analysis of orthotropic materials with simulation in wooden ship construction 木船结构正交各向异性材料振动仿真分析

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059473

D. R. Lekatompessy, R. P. Soumokil, H. C. Ririmasse

{"title":"Vibration analysis of orthotropic materials with simulation in wooden ship construction","authors":"D. R. Lekatompessy, R. P. Soumokil, H. C. Ririmasse","doi":"10.1063/5.0059473","DOIUrl":"https://doi.org/10.1063/5.0059473","url":null,"abstract":"We must know the construction characteristics so that the primary engine vibration can be distributed evenly. The analysis is carried out on the seamless structure, which is considered the ideal structure. The experimental Modal Analysis (EMA) method is used to see the characteristics of the dynamic load distribution in wooden ship construction. Simulation is used to find out which part of the construction has the highest stress concentration. Each construction part is grouped into the rigid base construction section (keel, floor, engine bed, and canal) and the elastic hull construction section (frame, hull board, and hull stringers). The simulation results show that in the radial direction of the fiber, with horizontal vibrations, the smallest amplitude occurs in the frame, while the largest occurs in the channel. In vertical vibrations, the smallest amplitude occurs at the keel and the largest in the hull board. In the tangential fiber direction, with horizontal vibrations, the smallest amplitude occurs in the hull board while the largest occurs in the engine bed area. In vertical vibrations, the smallest amplitude occurs at the keel while the largest occurs in the canal and engine bed.","PeriodicalId":13712,"journal":{"name":"INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021)","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84303874","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

Life cycle assessment of biodiesel and overview of the challenges in production of the biodiesel 生物柴油的生命周期评估和生物柴油生产中的挑战概述

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0066771

Anshul Jose Anthony, Ayush Kumar, Udit Bhojwani, A. Mittal, Bhavnadar Singh, Uchit Rehani, S. Vijayalakshmi, J. Ranjitha

引用次数: 0

The effectiveness of using e-modules in atomic structure material to improve scientific literacy ability of students 原子结构材料电子模块对提高学生科学素养的有效性

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059485

Eltarizky Fatma, Susilawati, R. Linda

{"title":"The effectiveness of using e-modules in atomic structure material to improve scientific literacy ability of students","authors":"Eltarizky Fatma, Susilawati, R. Linda","doi":"10.1063/5.0059485","DOIUrl":"https://doi.org/10.1063/5.0059485","url":null,"abstract":"The purpose of this study is to determine the effectiveness of using e-modules to improve scientific literacy skills of students. This e-module is designed on atomic structure material. The used method is pre-experimental using one group pretest-posttest only design. Research instrument was involved in a scientific literacy ability test consisting of 10 description questions. Sampling technique was used purposive sampling. Data analysis technique was tested using a paired sample t-test and N-Gain value. From the sample testing, it was obtained a significance value of p<0.05 (p=0.000). This data showed that there was a significant difference between the scientific literacy abilities of students before and after using e-modules. The average value of N-Gain was found that the increase in students’ scientific literacy skills was 0.74 with high category. This value is detailed as 0.87 (high) for the context aspect, 0.75 (high) for the knowledge aspect, 0.69 (medium) for the competency aspect and 0.73 (high) for the attitude aspect. Based on the data, it can be concluded that the use of e-modules on the atomic structure material was found to be effective in improving students’ scientific literacy skills.","PeriodicalId":13712,"journal":{"name":"INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021)","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83317231","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

Pectin extraction from cocoa (Theobroma cacao L) pod husk and its application as cadmium (Cd) metal adsorbent 可可荚壳中果胶的提取及其作为镉金属吸附剂的应用

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059478

F. A. Souhoka, M. Tanasale, Sardi Tomia

{"title":"Pectin extraction from cocoa (Theobroma cacao L) pod husk and its application as cadmium (Cd) metal adsorbent","authors":"F. A. Souhoka, M. Tanasale, Sardi Tomia","doi":"10.1063/5.0059478","DOIUrl":"https://doi.org/10.1063/5.0059478","url":null,"abstract":"The cocoa pod contains pectin, which has hydroxyl and carboxyl groups to adsorb Cd metal ions. This study aims to determine pectin’s yield from cocoa pod husk (CPH), characterization of pectin, and optimum condition of Cd metal ion adsorption by varying pH, contact time, and Cd metal ion concentration. Pectin was extracted from CPH powder using 5% HCl at 95 °C for 2 hours, followed by pectin precipitation using 96% ethanol. The yield of pectin from CPH was 6.169%. Identification of functional group using FTIR spectrophotometer, obtained absorption at wavenumbers (cm-1): 3277.06 (-OH), 2945.30 (-Csp3H), 1666.50 (C=O), 1384.89 (-CH3), 1157.69 (-CO), and 1082.07 (-C-OH). The pectin characteristic was the moisture content of 0.039%; ash content of 10.634%; the equivalent weight of 757.77 mg; methoxyl content of 5.303%; galacturonic acid content of 73.01%; and the degree of esterification 41.23%; Analysis of the absorbed Cd metal ion using AAS. The optimum conditions of Cd metal ion adsorption by pectin was obtained at pH 11; contact time 30 minutes; with the percentage of adsorbed get 99.76% and adsorption capacity of 2.4927 mg/g at 50 ppm of Cd metal ion concentration.","PeriodicalId":13712,"journal":{"name":"INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021)","volume":"34 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88040691","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

Utilization of Imperata cylindrica as an alternative low-cost cellulose sources for carboxymethyl cellulose production 白茅作为生产羧甲基纤维素的低成本替代纤维素来源的利用

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059894

Sunardi, D. Kusumawati, A. Junaidi, W. T. Istikowati, I. W. Sutapa

{"title":"Utilization of Imperata cylindrica as an alternative low-cost cellulose sources for carboxymethyl cellulose production","authors":"Sunardi, D. Kusumawati, A. Junaidi, W. T. Istikowati, I. W. Sutapa","doi":"10.1063/5.0059894","DOIUrl":"https://doi.org/10.1063/5.0059894","url":null,"abstract":"Various non-wood plants were evaluated as alternative raw materials in cellulose production. Imperata cylindrica is a perennial grass which distributed mainly in South Kalimantan, Indonesia. This grass is a noxious weed both in crops and natural areas, causing severe economic and environmental damage. In this work, Imperata cylindrica was used as raw material to produce cellulose. Cellulose was extracted from Imperata cylindrica through the removal of lignin and hemicellulose. The purpose of this study was to synthesize carboxymethyl cellulose (CMC) obtained through alkalization using sodium hydroxide (NaOH) and carboxymethylation reaction using monochloroacetic acid (MCA). Na-CMC is cellulose-derived material which widely uses in many industrial application, such as pharmaceutical excipients, thickener, binder, and emulsifying agent. The carboxymethylation process of cellulose was confirmed by Fourier transform infrared spectroscopy (FTIR) and further characterized by X-ray diffraction (XRD), degree of substitution value, and levels of solubility. Based on the comparison of FTIR spectra, X-ray diffraction, solubility, and degree of substitution, the optimum condition for Na-CMC synthesis was found to be 15% NaOH and the ratio of MCA to cellulose 0.80. In conclusion of the characteristic study, Imperata cylindrica is an excellent potential alternative cellulose in the pharmaceutical industries.","PeriodicalId":13712,"journal":{"name":"INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021)","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82913380","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

Effect of heat treatment on preparation of expanded perlite from Indonesian perlite rock 热处理对印尼珍珠岩制备膨胀珍珠岩的影响

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI: 10.1063/5.0059513

A. Wahyudi, Suci Amalsari, Didit Darmawan, A. Hardian

引用次数: 0