Engineering Headway最新文献_第5页

Optimizing Alfian's Cassava Stick Production to Maximize Business Profits Imron Rosidi 优化阿尔菲安木薯条生产，实现企业利润最大化 Imron Rosidi

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-jdqjl9

Dede Haerohmansyah, Endarti Puspitasari, Dwi Agustina Kurniawati

引用次数: 0

Effect of Reaction Time on Production Biodiesel of Schleichera oleosa 反应时间对油橄榄生物柴油生产的影响

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-2duepe

Suherman Suherman, Abdullah Ilmi, Muhammad Sabri, A. S. Silitonga

引用次数: 0

Coconut Shell, Rice Husk, and Corn Cob Pyrolysis with Zeolite Catalyst 用沸石催化剂热解椰子壳、稻壳和玉米芯

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-hjtvs0

Khalimatus Sa’diyah, Christyfani Sindhuwati, Profiyanti Hermin Suharti, Fatkhur Rohman, Cucuk Evi Lusiani

{"title":"Coconut Shell, Rice Husk, and Corn Cob Pyrolysis with Zeolite Catalyst","authors":"Khalimatus Sa’diyah, Christyfani Sindhuwati, Profiyanti Hermin Suharti, Fatkhur Rohman, Cucuk Evi Lusiani","doi":"10.4028/p-hjtvs0","DOIUrl":"https://doi.org/10.4028/p-hjtvs0","url":null,"abstract":"Recycling garbage with the pyrolysis technique to make liquid smoke is one effort to utilize biomass waste. Because it includes acetic acid and phenol, which aid in food preservation, liquid smoke can be used on foods. The goal of this research was to look into the usage of zeolite catalysts in the production of liquid smoke from various types of biomass via catalytic pyrolysis. Coconut shells, corn cobs, and rice husks are used as biomass. The investigation began with the activation of the zeolite catalyst, with the goal of cleansing the catalyst of impurities and boosting its activity by opening the pores. The catalytic pyrolysis process was then carried out at 350°C for 2 hours while adjusting the quantity of catalyst addition (4%, 5%, and 6%). Catalytic pyrolysis liquid smoke is collected and evaluated. As a preservative, studied liquid smoke is applied to skipjack tuna. Based on the quality of commercial liquid smoke, the results showed that coconut shell liquid smoke with a percentage of 6% zeolite added was the most optimal liquid smoke. 6.5% yield, yellowish brown hue, slightly pungent aroma, pH value 2, density 1.132 g/ml, acid content 24%, and viscosity 1.3090 cP were the features of 6% zeolite coconut shell liquid smoke.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"110 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140698721","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

Landsat Satellite Image Quality Improvement Using Discrete Cosine Transform Method 利用离散余弦变换方法提高陆地卫星图像质量

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-bvfs09

Deddy Rahmadi, Silvia Rachmawati

引用次数: 0

Pysicomechanical Properties of Edible Film with the Addition of Red Ginger (Zingiber Officinale Var. Rubrum) 添加了红姜（Zingiber Officinale Var. Rubrum）的食用薄膜的心理力学性能

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-jwxo1g

Astri Arnamalia, E. Sedyadi, Dodi Irwanto, Esti Wahyu Widowati

{"title":"Pysicomechanical Properties of Edible Film with the Addition of Red Ginger (Zingiber Officinale Var. Rubrum)","authors":"Astri Arnamalia, E. Sedyadi, Dodi Irwanto, Esti Wahyu Widowati","doi":"10.4028/p-jwxo1g","DOIUrl":"https://doi.org/10.4028/p-jwxo1g","url":null,"abstract":"Preparation of Edible Film with the Addition of Red Ginger Extract (Zingiber Officinale Var. Rubrum) and Its Application to Tomato (Lycopersicum esculentum) has been carried out. The purpose of this study was to analyze the optimum concentration of adding red ginger extract to edible films on the physical and mechanical properties and to analyze the optimum concentration of adding red ginger extract to edible films on the shelf life of tomatoes. The working principle of making edible films is by varying the red ginger extract 0; 0.25; 0.50; 0.75 and 1% were analyzed by testing the thickness, tensile strength, elongation, young's modulus, and WVTR as well as analyzing the addition of red ginger variations 0; 0.25; 0.50; 0.75 and 1% for testing the shelf life of tomatoes in the form of texture tests and FTIR tests. The addition of red ginger variations had a significant effect (p<0.05) on the thickness, tensile strength, elongation, and modulus of young edible film at the optimum concentration of 0.50% with a thickness value of 0.100 mm, tensile strength 4.696 Mpa, elongation 0.194%, modulus young 26.68 Mpa, and WVTR 15.85 g/m2.hour.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"319 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140698288","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

Analysis of the Influence of Promotion, Price, Ease of Use, and Flexibility on Shopping Behavior of E-Commerce Users in Jabodetabek 促销、价格、易用性和灵活性对 Jabodetabek 电子商务用户购物行为的影响分析

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-hbv7qo

Yusuf Saputro, Muhammad Wakhid Musthofa, Ira Setyaningsih

引用次数: 0

Analysis on Students’ Academic Performance in Relation to the Results of Pre-University Examination 学生学业成绩与大学预科考试成绩的关系分析

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-gwn34t

Chong Qi, Sabariah Binti Saharan

{"title":"Analysis on Students’ Academic Performance in Relation to the Results of Pre-University Examination","authors":"Chong Qi, Sabariah Binti Saharan","doi":"10.4028/p-gwn34t","DOIUrl":"https://doi.org/10.4028/p-gwn34t","url":null,"abstract":"There is a great deal of uncertainty regarding the factors that influence their final year grade, which includes their entry qualification. This paper investigates the impact of entry qualification and pre-university CGPA on student performance at the university level. Entry qualifications are critical for educational institutions or educational providers to ensure the quality of the graduates. The goal of this study is to analyze and compare performance of Bachelor of Science (Industrial Statistics) with Honours (BWQ) students. Total of 54 students were selected form the Faculty of Applied Sciences and Technology (FAST), Universiti Tun Hussein Onn Malaysia (UTHM). The students are coming from Malaysian Higher School Certificate (STPM) and Malaysian Matriculation Programme. Paired t test and Z test were carried out to analyze the impact of pre-university’s CGPA and each semester’s GPA as well as impact of entry qualification towards their final year grade. Classification and Regression Tree (CART), K-Nearest Neighbors and Naïve Bayes were used to develop and predict the students’ performance. The findings show that there is no relation between the result obtained from previous semester towards the next semester. Meanwhile, students from STPM outperform Matriculation in terms of their GPA per semester, pre-university CGPA as well as their final CGPA. The K-Nearest Neighbors and Naïve Bayes models have been documented as the most efficient data mining techniques in predicting student performance with the highest percentage of accuracy of 100%.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"101 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140695243","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

Development of Geothermal Sludge Derived - Silica Catalyst for Sago Starch Hydrolysis 开发用于西米淀粉水解的地热污泥衍生二氧化硅催化剂

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-0sg5ae

O.K. Ahmad Ariq, Widiana Nurrahmadhanti Bunga, E. M. Idzati, Firman Kurniawansyah, H. Ni’mah, H. B. T. M. Petrus, M. Mahfud

引用次数: 0

Bioelectricity Production through Dual-Chamber Microbial Fuel Cell Using Tofu Liquid Waste: Effect of Differences in Electrolyte Solutions 利用豆腐废液通过双室微生物燃料电池生产生物电：电解质溶液差异的影响

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-4uqgg4

M. Purwanto, M. A. Ramdani, Wildan Wahyu Firdhaus, R. Yogaswara

{"title":"Bioelectricity Production through Dual-Chamber Microbial Fuel Cell Using Tofu Liquid Waste: Effect of Differences in Electrolyte Solutions","authors":"M. Purwanto, M. A. Ramdani, Wildan Wahyu Firdhaus, R. Yogaswara","doi":"10.4028/p-4uqgg4","DOIUrl":"https://doi.org/10.4028/p-4uqgg4","url":null,"abstract":"The Dual-Chamber Microbial Fuel Cell system has been successfully developed to produce bioelectricity based on tofu liquid waste. In this study, variations of the operating parameters of the MFC were carried out, namely differences in electrolyte solutions of potassium permanganate (KMnO₄) and potassium dichromate (K₂Cr₂O₇). In addition, the configuration of the reactor circuit used is a series reactor circuit and a single reactor. The results of the MFC process show that the maximum electric voltage and current strength values obtained in the KMnO₄ electrolyte solution are 880 mV and 0.352 mA, respectively. Meanwhile, the maximum electric voltage and current strength in the K₂Cr₂O₇ electrolyte solution are 569 mV and 0.228 mA. Furthermore, the use of potassium permanganate is known to produce a maximum power density of 20.88 mW/cm², which is two times greater than the maximum power density value produced by potassium dichromate, which is 8.73 mW/cm². Whereas the difference in the reactor series shows that the series reactor circuit can increase the maximum power density value of 356.61 mW/cm², higher than the single reactor which is 26.21 mW/cm². Based on all the data generated from this study, tofu liquid waste has the potential as the main ingredient in the MFC process to produce bioelectricity.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"1 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140697659","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

Placement Optimization of Air Force Fighter in the National Air Defense System 空军战斗机在国家防空系统中的布局优化

Engineering Headway Pub Date : 2024-04-16 DOI: 10.4028/p-ktnj3y

Hakim Ar Rifki R., Salma El Achzaabi, Sherly Aprilia, Gagat Riano, Bambang Ismoyo

引用次数: 0