Jurnal Teknologi-Sciences & Engineering最新文献

EFFECTS OF DEFICIT IRRIGATION ON BARLEY YIELD USING SEVERAL IRRIGATION SCENARIOS 不同灌溉方案下亏缺灌溉对大麦产量的影响

IF 0.7

Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.19943

Alaa I. Naser, M. T. Mahmood, Omar M. A. Mahmood Agha

{"title":"EFFECTS OF DEFICIT IRRIGATION ON BARLEY YIELD USING SEVERAL IRRIGATION SCENARIOS","authors":"Alaa I. Naser, M. T. Mahmood, Omar M. A. Mahmood Agha","doi":"10.11113/jurnalteknologi.v85.19943","DOIUrl":"https://doi.org/10.11113/jurnalteknologi.v85.19943","url":null,"abstract":"Deficient irrigation is a very significant study, especially with the limited water. Therefore, the current research aims to study the deficit irrigation depending on several different scenarios, by adding different amounts of water and irrigation rates (10%, 30%, 50%, 70%, 90%) of the full irrigation with changing irrigation time and studying its effect on productivity. The results showed that there is a clear effect on the productivity of barley at the level of irrigation (10%-30%) of the full irrigation and for all irrigation dates when changing the date of the first irrigation only, while the results showed when changing the second irrigation only and the first and second irrigation at the level of irrigation (10% - 30% -50%) of the full irrigation, the productivity will decrease by 13.75 - 84.7 kg/ha. It was also noticed that changing the irrigation level for the first irrigation has a very small effect on productivity compared to changing the irrigation level for the second irrigation and for all irrigation dates, and the reason for this is the difference in the stages of yield growth. While the results showed that changing the irrigation level for the first and second irrigation together will have a greater effect on productivity than the rest of the other scenarios.","PeriodicalId":47541,"journal":{"name":"Jurnal Teknologi-Sciences & Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44730513","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

IMPROVE THE COMPRESSIVE STRENGTH USING A STRENGTH IMPROVER AGENT (SIA) IN THE CEMENT INDUSTRY IN INDONESIA 在印度尼西亚水泥工业中使用强度改进剂（SIA）提高抗压强度

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Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.19629

Herliati Rahman, M. Mulyani

{"title":"IMPROVE THE COMPRESSIVE STRENGTH USING A STRENGTH IMPROVER AGENT (SIA) IN THE CEMENT INDUSTRY IN INDONESIA","authors":"Herliati Rahman, M. Mulyani","doi":"10.11113/jurnalteknologi.v85.19629","DOIUrl":"https://doi.org/10.11113/jurnalteknologi.v85.19629","url":null,"abstract":"Greenhouse gas emissions such as CO2 are released during clinker production through various processes, including the calcination reaction of limestone (CaCO3). To reduce CO2 emissions per ton of cement produced, some studies have explored the use of clinker substitutes. However, a reduction in the amount of clinker can also result in decreased compressive strength of the cement. To address this issue, the addition of a Strength Improver Agent (SIA) can be used to maintain the necessary compressive strength and ensure compliance with all relevant standards. Therefore, This study aimed to determine the optimal amount of SIA required to achieve the desired compressive strength. The study added SIA in varying amounts (100, 150, 200, 250, 300, 350, and 400 ppm), and the compressive strength of cement was measured at 1, 3, 7, and 28 days based on ASTM C 109 and QPT-LAB-SNI-05 standards. Physical tests were also conducted, including Blaine, 325 mesh residue, Insoluble Residue (IR), Loss on Ignition (LOI), and XRF based on ASTM C 114, ASTM-STP 985, XRF Thermo ARL 8480S. The observations and analysis showed that the optimum amount of SIA addition is 350 ppm, where the resulting compressive strength increases at least 7% compared to blanks.","PeriodicalId":47541,"journal":{"name":"Jurnal Teknologi-Sciences & Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43540726","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

ACID WASH INFLUENCES ON PHYSICOCHEMICAL CHARACTERISTICS OF BAMBOO LEAVES ASH 酸洗对竹叶灰理化特性的影响

IF 0.7

Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.18082

S. Steven, Yusrin Ramli, Davin Pratama, Pandit Hernowo, Pasymi Pasymi, E. Restiawaty, Y. Bindar

{"title":"ACID WASH INFLUENCES ON PHYSICOCHEMICAL CHARACTERISTICS OF BAMBOO LEAVES ASH","authors":"S. Steven, Yusrin Ramli, Davin Pratama, Pandit Hernowo, Pasymi Pasymi, E. Restiawaty, Y. Bindar","doi":"10.11113/jurnalteknologi.v85.18082","DOIUrl":"https://doi.org/10.11113/jurnalteknologi.v85.18082","url":null,"abstract":"Silica production from sandstone requires tremendous fossil resources that threaten our environment. Hence, greener resources from biomass should be utilized. One of them is from bamboo leaves which contain rich silica in ash. Even so, acid wash should be applied to achieve higher silica purity. This work aims to investigate the acid wash influences on the physicochemical characteristics of bamboo leaves ash (BLA). The treatment used 1 mol/L HCl under 1-h, 2-h, and no acid wash as a control. The BLA crystallography indicates a fully amorphous phase of silica. Interestingly, 1-h acid wash precisely reduces the silica purity from 95.35% to 94.74%, but it then increases to 96.06% under 2-h acid wash. It is also notified that the longer acid wash duration could alleviate leaves’ mechanical strength. After calcination, consequently, a smaller average particle size of BLA was nominated under 2-h acid wash (6.32 mm). It was then followed by 1-h acid wash (21.32 mm) and no acid wash (149.44 mm). The 2-h acid wash is concluded able to intensify silica purity as well as reduce the particle size of BLA. Finally, acid wash treatment becomes important to facilitate further BLA extraction in order to achieve high purity of silica.","PeriodicalId":47541,"journal":{"name":"Jurnal Teknologi-Sciences & Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46739059","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: 3

SHEAR STRENGTH OF SOFT CLAY REINFORCED WITH SINGLE ENCASED STONE DUST COLUMNS 单嵌石防尘柱加固软粘土的抗剪强度

IF 0.7

Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.19879

Md. Ikramul Hoque, M. Hasan, Nusrat Jahan Mim

{"title":"SHEAR STRENGTH OF SOFT CLAY REINFORCED WITH SINGLE ENCASED STONE DUST COLUMNS","authors":"Md. Ikramul Hoque, M. Hasan, Nusrat Jahan Mim","doi":"10.11113/jurnalteknologi.v85.19879","DOIUrl":"https://doi.org/10.11113/jurnalteknologi.v85.19879","url":null,"abstract":"\u0000\u0000\u0000\u0000The application of stone columns, which can improve the overall carrying capacity of soft clay as well as lessen the settlement of buildings built on it, is among the most widespread ground improvement techniques throughout the globe. The performance of foundation beds is enhanced by their stiffness values and higher strength, which could withstand more of the load applied. Therefore, the cost of construction can be decreased by using recycled stone dust as granular material in vertical granular columns, which can then be strengthened with a singular stone dust column that is covered in geotextile for enhancing soft clay’s overall strength. A further unconfined compression test was performed on remolded specimens of soft kaolin clay measuring 50 mm in diameter and 100 mm in height and mounted with a single encapsulated stone dust column measuring 10 mm and 16 mm in diameter. Test results show that when kaolin is implanted with a single encased stone dust column that has an area replacement ratio of 10.24% and penetration ratios of 0.6, 0.8, and 1.0, the shear strength increases are 51.75%, 74.5%, and 49.20%, respectively. The equivalent shear strength increases are 48.50%, 68.50%, and 43.50% for soft soil treated with a 12.00% area replacement ratio and 0.6, 0.8, and 1.0 penetration ratios, respectively. The diameter and height of the column had an impact on the shear strength parameters, which significantly improved for both encased and non-encased stone dust columns.\u0000\u0000\u0000\u0000","PeriodicalId":47541,"journal":{"name":"Jurnal Teknologi-Sciences & Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46180291","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

NITROGEN, POTASSIUM, AND SILICON FERTILIZATION TO ACHIEVE LOWER PANICLE BLAST SEVERITY AND IMPROVE YIELD COMPONENTS OF RICE USING RESPONSE SURFACE METHODOLOGY 利用响应面法降低水稻穗部稻瘟病严重程度和改善产量构成

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Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.18893

N. Esa, S. N. Misman, Maisarah Mohamad Saad, Mohd Fitri Masarudin

{"title":"NITROGEN, POTASSIUM, AND SILICON FERTILIZATION TO ACHIEVE LOWER PANICLE BLAST SEVERITY AND IMPROVE YIELD COMPONENTS OF RICE USING RESPONSE SURFACE METHODOLOGY","authors":"N. Esa, S. N. Misman, Maisarah Mohamad Saad, Mohd Fitri Masarudin","doi":"10.11113/jurnalteknologi.v85.18893","DOIUrl":"https://doi.org/10.11113/jurnalteknologi.v85.18893","url":null,"abstract":"\u0000\u0000\u0000\u0000Rice blast is one of the most critical limiting factors for rice plant growth performance, and it occurs in 85 countries, causing 10-35% grain yield losses. Several findings have indicated the positive benefits of nitrogen (N), potassium (K), and Silicon (Si) fertilization on plant development, yield, and biotic stress relief. However, due to rice blast attacks, its growth, development, and yield may be restricted or limited by insufficient or unbalanced N, K, and Si fertilizers. This study was conducted to optimize the fertilization strategies for rice panicle blast control and improve rice grain yield. The methods used were Central Composite Design and Response Surface Methodology. The application of N, K and Si did not influence the number of spikelets per meter square, filled grain (%) and 1000- grain weight (g). An increase in K and Si significantly reduced the rice blast severity in the off-season 2021 and the main-season 2021/2022. On the other hand, only Si had influenced rice grain yield production. An increase in Si showed a positive linear trend in rice grain yield. Based on these results, panicle blast disease is expected to be controlled with the recommended rate of 104 N kg/ha, 42 P2O5, 80 kg K2O, and an additional 200 Si kg/ha, which minimizes the rice blast severity (%) but at the same time maximizes the rice grain yield. The findings of this study provide a scientific base and technical advice for high-yield rice grain-growing under panicle blast disease hot spot areas.\u0000\u0000\u0000\u0000","PeriodicalId":47541,"journal":{"name":"Jurnal Teknologi-Sciences & Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49261383","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

CFD SIMULATION AND VALIDATION FOR MIXING VENTILATION SCALED-DOWN EMPTY AIRCRAFT CABIN USING OPENFOAM 开放式泡沫塑料混合通风空舱的CFD模拟与验证

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Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.19423

Shahliza Azreen Sarmin, Azli Abd Razak, Fauziah Jerai, Mohd Khir Harun

{"title":"CFD SIMULATION AND VALIDATION FOR MIXING VENTILATION SCALED-DOWN EMPTY AIRCRAFT CABIN USING OPENFOAM","authors":"Shahliza Azreen Sarmin, Azli Abd Razak, Fauziah Jerai, Mohd Khir Harun","doi":"10.11113/jurnalteknologi.v85.19423","DOIUrl":"https://doi.org/10.11113/jurnalteknologi.v85.19423","url":null,"abstract":"\u0000\u0000\u0000\u0000An investigation into the spread of the COVID-19 virus within a confined space including an aircraft cabin is essential in order to find out the mechanism. However, this is time-consuming and limited in scope, so a computational fluid dynamics (CFD) simulation is used instead. Therefore, a prior study and an appropriate choice of turbulence model are required before the simulation. The main objective of this study is to validate and evaluate the results predicted by the Open Source Field Operation and Manipulation (OpenFOAM) software through comparison with the experimental data from the literature which was conducted using particle image velocimetry (PIV) measurement. Three different Reynolds-averaged Navier-Stokes turbulence models were selected; Re-normalisation Group k - ɛ (RNG), Realizable k - ɛ (RLZ) and Low Reynold Number (LRN) to simulate a mixing ventilation system of a scaled-down model of empty aircraft cabin. In the RNG and LRN model cases, a fairly large circulation flows were observed on the right and left sides of the model representing the passenger area. The results were also evaluated quantitatively using the factor of two of observations (FAC2) for the velocity components and turbulent kinetic energy (TKE) with root mean square error (RMSE) for the former and normalised mean square errors (NMSE) for the latter. The simulation results showed that RNG and LRN are capable of predicting the flow field well. However, for TKE prediction LRN performed better than RNG which concluded that LRN is the suitable turbulence model in simulating flow fields in investigated case.\u0000 \u0000\u0000\u0000\u0000","PeriodicalId":47541,"journal":{"name":"Jurnal Teknologi-Sciences & Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42647146","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

DOSIMETRY ANALYSIS OF BORON NEUTRON CAPTURE THERAPY (BNCT) ON THYROID CANCER USING PHITS CODE WITH NEUTRON FROM 30 MeV CYCLOTRON 用PHITS代码与30MeV CYCLOTRON中子进行硼中子捕获治疗甲状腺癌的剂量分析

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Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.19454

B. Bilalodin, Wihantoro Wihantoro, A. Haryadi, F. Abdullatif

引用次数: 0

VIBRATION BASED PREDICTIVE FAULT ANALYSIS OF BEARING SEAL FAILURE AND CAVITATION ON INDUSTRIAL MONOBLOCK CENTRIFUGAL PUMP USING DEEP LEARNING ALGORITHM 基于振动的预测故障分析基于深度学习算法的工业单体离心泵轴承密封失效和汽蚀

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Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.20392

M. S, Duraivelu K

引用次数: 0

SMART AGRICULTURAL MONITORING SOLUTION FOR CHILLI LEAF DISEASES USING A LOW-COST KINECT CAMERA AND AN IMPROVED CNN ALGORITHM 基于低成本KINECT相机和改进CNN算法的辣椒叶病智能农业监测解决方案

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Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.19884

Chyntia Jaby Ak Entuni, T. Zulcaffle, Kismet Hong Ping, A. Sharangi, T. Upadhyay, Mohd Saeed

{"title":"SMART AGRICULTURAL MONITORING SOLUTION FOR CHILLI LEAF DISEASES USING A LOW-COST KINECT CAMERA AND AN IMPROVED CNN ALGORITHM","authors":"Chyntia Jaby Ak Entuni, T. Zulcaffle, Kismet Hong Ping, A. Sharangi, T. Upadhyay, Mohd Saeed","doi":"10.11113/jurnalteknologi.v85.19884","DOIUrl":"https://doi.org/10.11113/jurnalteknologi.v85.19884","url":null,"abstract":"\u0000\u0000\u0000\u0000Chilli is extensively grown all over the globe and is particularly important as a food. One of the most difficult issues confronting chilli cultivation is the requirement for accurate identification of leaf diseases. Leaf diseases have a negative impact on chilli production quality, resulting in significant losses for farmers. Numerous Machine Learning (ML) and Convolution Neural Network (CNN) models have been developed for classifying chilli leaf diseases under uniform background and uncomplicated leaf conditions, with an average classification accuracy achieved. However, a diseased leaf usually grows alongside a cluster of other leaves, making it difficult to classify the disease. It will be easier for farmers if there is a reliable model that can classify a chilli leaf disease in a cluster of leaves. The aim of this study was to propose a model for classifying chilli leaf disease from both a uniform background and a complex cluster of leaves. Images of diseased chilli leaves are acquired using a low-cost Kinect camera, which include discoloration, grey spots, and leaf curling. The different types of chilli leaf disease are then classified using an improved ShuffleNet CNN model. With a classification accuracy of 99.82%, the proposed model outperformed the other existing models.\u0000\u0000\u0000\u0000","PeriodicalId":47541,"journal":{"name":"Jurnal Teknologi-Sciences & Engineering","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45240190","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

DESIGNING THE TECHNOLOGY FOR TURBIDITY SENSOR-BASED AUTOMATIC RIVER SEDIMENTATION MEASUREMENT 基于浊度传感器的河流泥沙自动测量技术的设计

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Jurnal Teknologi-Sciences & Engineering Pub Date : 2023-08-21 DOI: 10.11113/jurnalteknologi.v85.19618

Y. Romdania, I. S. Banuwa, S. B. Yuwono, E. P. Wahono, S. Triyono

引用次数: 0