JPSE (Journal of Physical Science and Engineering)最新文献_第2页

Investigation of Optical Properties and Electronic Transfer of Temperature-Dependent ZnO Nanocolumnars Grown by DC Sputtering 直流溅射生长温度相关ZnO纳米柱的光学性质和电子转移研究

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-10-09 DOI: 10.17977/um024v7i22022p086

R. Kurniawan, Intan Salsabila Mauludina Sari, Isnaini Yulianingtyas, Joyuhan Putra Setyawan, I. M., R. Marlina, Joko Suwardy

引用次数: 0

Effect of Fibre Volume Fraction and Sodium Hydroxide Treatment on Mechanical Properties of Palm Fibre/Unsaturated Polyester Composite 纤维体积分数和氢氧化钠处理对棕榈纤维/不饱和聚酯复合材料力学性能的影响

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-04-09 DOI: 10.17977/um024v7i12022p039

T. Partuti, Umar Hamzah Fariyan, Y. Dwiyanti, A. Trenggono, E. Yustanti

{"title":"Effect of Fibre Volume Fraction and Sodium Hydroxide Treatment on Mechanical Properties of Palm Fibre/Unsaturated Polyester Composite","authors":"T. Partuti, Umar Hamzah Fariyan, Y. Dwiyanti, A. Trenggono, E. Yustanti","doi":"10.17977/um024v7i12022p039","DOIUrl":"https://doi.org/10.17977/um024v7i12022p039","url":null,"abstract":"Wood has some weaknesses, such as susceptibility to weathering, easily attacked by termites, and low water resistance. An alternative material such as Natural Fibre-Reinforced Polymer (NFRP) composite should overcome those weaknesses. This research aims to make a composite with palm fibre and unsaturated polyester resin. Palm fibres immerse for 2 hours in NaOH solution with varying concentrations of 3%, 5%, and 7%. The volume fraction of palm fibre are 0%, 5%, 10%, 15%, and 20%. Woven roving fibreglass was added to compare the tensile strength of composite with or without natural fibre. The density of composites increased with the increase of fibre volume fraction. The highest tensile strength was obtained for 15% of fibre volume fraction, namely 23.8483 MPa. In contrast, the highest compressive strength was obtained for 5% of fibre volume fraction, namely 94.76 MPa. NaOH removed the impurities and waxy substances from the fibre surface and created a rougher surface topography after alkalization. The highest tensile strength was obtained with 7% NaOH, namely 14.674 MPa. The highest water absorption value was obtained at 3% NaOH concentration and 15% of fibre volume fraction, namely 1.445%. The addition of woven roving as reinforcement to natural fibre composite can increase tensile strength by 210%, from 13.882 MPa to 43.123 MPa.","PeriodicalId":265940,"journal":{"name":"JPSE (Journal of Physical Science and Engineering)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127668029","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: 2

Investigation of Structures, Vibrational Spectra, and Morphological Characteristics of Undoped and Cobalt-doped Ni-Zn Ferrite 未掺杂和钴掺杂镍锌铁氧体的结构、振动光谱和形态特征研究

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-04-09 DOI: 10.17977/um024v7i12022p051

J. Utomo, R. Kurniawan, M. R. Taqwa, B. R. Kurniawan, N. Wahyuni, Adulsman Sukkaew

引用次数: 0

Modified Newtonian Dynamics (MOND) vs Newtonian Dynamics: The Simple Test to Solve the Constant Speed of Galaxy Rotation 修正牛顿动力学(MOND) vs牛顿动力学:解决星系旋转恒定速度的简单测试

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-04-09 DOI: 10.17977/um024v7i12022p001

Huda Nasrulloh

引用次数: 0

The effect of Basic Oxygen Furnace, Blast Furnace, and Kanbara Reactor Slag as Reinforcement to Cement Based Mortar 碱性氧炉、高炉和坎巴拉反应器炉渣对水泥基砂浆的加固效果

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-04-09 DOI: 10.17977/um024v7i12022p056

Andrie Harmaji, A. Hardiansyah, Neneng Annisa Widianingsih, Rodulotum Minriyadlil Jannah, S. Soepriyanto

{"title":"The effect of Basic Oxygen Furnace, Blast Furnace, and Kanbara Reactor Slag as Reinforcement to Cement Based Mortar","authors":"Andrie Harmaji, A. Hardiansyah, Neneng Annisa Widianingsih, Rodulotum Minriyadlil Jannah, S. Soepriyanto","doi":"10.17977/um024v7i12022p056","DOIUrl":"https://doi.org/10.17977/um024v7i12022p056","url":null,"abstract":"Slag is a waste from steelmaking industries that was released into the environment. Slag was used as reinforced material in mortar. Different types of slag, including Air Cooled Slag (ACS), Granulated Blast Furnace Slag (GBFS), Basic Oxygen Furnace Slag (BOFS), and Kanbara Reactor Slag (KRS), were used as a reinforcing material in this study. The composition of slag in the mixture on mortar was 10%, 20%, 30%, 40%, and 50%. The sample was made with a water-cement ratio (w/c) of 0.35, with the ratio of sand and cement being 1:1.5, respectively. Treatment of mortar sample at ambient temperature was applied. The mortar samples were left to cure until 3, 7, and 28 days, which performed a compression test. The results show that adding slag to the mortar enhanced the compressive strength of the pristine mortar. The highest strength was obtained by adding 10% slag at 28 days. The compressive strength of GBFS, BOFS, KRS, and ACS was 23.76 MPa, 23.28 MPa, 19.68 MPa and 17.48 MPa, respectively. Based on the XRD result, it was discovered that the mixture has more Calcium Silicate Hydrate Peak than Pristine mortar.","PeriodicalId":265940,"journal":{"name":"JPSE (Journal of Physical Science and Engineering)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129425317","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

Green Synthesis AgNPs Immobilized to Whatman Paper Using Chromolaena odorata Extract and Its Application as Photocatalyst 用臭草提取物绿色合成Whatman纸固定化AgNPs及其光催化剂的应用

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-04-09 DOI: 10.17977/um024v7i12022p006

Kiki Firanita, Syamsul Hidayat, Fadhli Dzil Ikram, S. Bahtiar, Emsal Yanuar

{"title":"Green Synthesis AgNPs Immobilized to Whatman Paper Using Chromolaena odorata Extract and Its Application as Photocatalyst","authors":"Kiki Firanita, Syamsul Hidayat, Fadhli Dzil Ikram, S. Bahtiar, Emsal Yanuar","doi":"10.17977/um024v7i12022p006","DOIUrl":"https://doi.org/10.17977/um024v7i12022p006","url":null,"abstract":"Synthesis and immobilization of silver nanoparticles (AgNPs) to Whatman paper carried out using Cromolaena odorata extract irradiated by sunlight. The UV-Vis shows silver nanoparticles successfully formed from AgNO3 1 mM, 2 mM, and 3 mM with the absorption peaks at 455 nm, 452 nm, and 451 nm, respectively. The SEM shows AgNPs are spherical with an average particle size are 60.45 nm, 63.19 nm, and 68.42 nm, respectively. The EDX spectrum shows the composition of silver immobilized to Whatman paper increase with increasing concentration of 10.14Wt%, 64.48Wt%, and 70.48 Wt%, respectively. AgNPs/Whatman paper has a cubic crystal structure, space group Fm-3m, lattice parameter (a) 4.0862 Ǻ and crystal size of 42.94 nm. FTIR reach peaks at 520.78 cm-1 and 1,059 cm-1 explains the vibration of the Ag-O bonds indicated the formation of AgNPs. Furthermore, the photocatalyst ability for dye degradation was evaluated using methylene blue 10 ppm under sunlight for 6 hours. The result shows a changed colour to fade and decreases the absorbance ability of methylene blue. Therefore, it can be concluded that green synthesis and immobilization of AgNPs/Whatman paper have a potential to be applied as photocatalyst materials for dye degradation.","PeriodicalId":265940,"journal":{"name":"JPSE (Journal of Physical Science and Engineering)","volume":"445 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123588869","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

Design A Battery Charger with Arduino Uno-Based for A Wind Energy Power Plant 基于Arduino的风力发电厂电池充电器设计

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-04-09 DOI: 10.17977/um024v7i12022p023

A. Nugraha, Dadang Priyambodo, S. Sarena

引用次数: 0

Study of the Structure of MnxFe3-xO4-Poly(m-Aminobenzene Sulfonic Acid) Composites Based on Natural Sand 天然砂基mnxfe3 - xo4 -聚间氨基苯磺酸复合材料的结构研究

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-04-09 DOI: 10.17977/um024v7i12022p016

Andy Choerullah, S. Sunaryono, A. Hidayat, N. Malek

{"title":"Study of the Structure of MnxFe3-xO4-Poly(m-Aminobenzene Sulfonic Acid) Composites Based on Natural Sand","authors":"Andy Choerullah, S. Sunaryono, A. Hidayat, N. Malek","doi":"10.17977/um024v7i12022p016","DOIUrl":"https://doi.org/10.17977/um024v7i12022p016","url":null,"abstract":"MnxFe3-xO4-Poly(m-ABS) nanocomposite has been successfully synthesized by in-situ polymerization. In the formation of MnxFe3-xO4-Poly(m-ABS) nanocomposites, FeCl synthesized from iron sand acts as an oxidant and m-aminobenzenesulfonic acid (m-ABS) as a monomer. Structural characterization has been successfully carried out using XRD, FTIR, and SEM. XRD test results show that the MnxFe3-xO4-Poly(m-ABS) nanocomposite has a particle size of about 10.62 nm. The appearance of peaks (111) and (620) with low intensity indicated the presence of poly(m-ABS). This low intensity was probably caused by the amorphous character of polyaniline and its derivatives. The FTIR results show the appearance of asymmetrical and symmetrical S=O strains, S-O, and C-S strains are the main characteristics of poly(m-ABS) which indicate the success of monomer polymerization. The results of the SEM test show that circular shapes dominate the particles with varying sizes with an average size of 42 nm. This result is different from the XRD results because SEM can only measure the surface of the particles, so the resulting size tends to be larger. Based on the study of the structure obtained shows that the MnxFe3-xO4-Poly(m-ABS) nanocomposite has the potential to be applied to energy conversion devices.","PeriodicalId":265940,"journal":{"name":"JPSE (Journal of Physical Science and Engineering)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121492167","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

Grecoli Candy from Grape and Broccoli to Boost the Body's Immune System in the Middle of the COVID-19 Pandemic 葡萄和西兰花制成的greoli糖果在COVID-19大流行期间增强人体免疫系统

JPSE (Journal of Physical Science and Engineering) Pub Date : 2022-04-09 DOI: 10.17977/um024v7i12022p046

F. Fathurochman, H. Hartatiek, Nadya Eka Agustin Ermalita, Lintang Miftahul Rizki, N. Ahmad

{"title":"Grecoli Candy from Grape and Broccoli to Boost the Body's Immune System in the Middle of the COVID-19 Pandemic","authors":"F. Fathurochman, H. Hartatiek, Nadya Eka Agustin Ermalita, Lintang Miftahul Rizki, N. Ahmad","doi":"10.17977/um024v7i12022p046","DOIUrl":"https://doi.org/10.17977/um024v7i12022p046","url":null,"abstract":"Grapes and broccoli have been scientifically proven to have high antioxidant content to increase the body's immune power compared to other fruits or vegetables. An immunomodulator is a compound that can regulate the activity and function of the immune system. The purpose of this study was to find out how to improve the body's immune system amid the COVID-19 pandemic and also to find out how to make food practically consumed to help increase the body's immunity during the COVID-19 pandemic. In this study, grapes and broccoli were extracted and then boiled at a temperature of ±85–100℃, then mixed with several ingredients, including sucrose, glucose, citric acid, gelatin, and flavourings. The antioxidant test was carried out using the Ferric Reducing Antioxidant Power (FRAP) method. After obtaining the antioxidant value, a spectrophotometric test was carried out to determine the maximum wavelength and absorbance value obtained. For the first sample, the results were 22.88 mmAAE/mL extract. In contrast, the second sample obtained results of 25.01mmAAE/mL extract.","PeriodicalId":265940,"journal":{"name":"JPSE (Journal of Physical Science and Engineering)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124981007","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

Synthesis and Characterization of Magnesium Acetate Doped MAPbI3 Perovskite Solar Cells with Carbon Electrodes 碳电极掺杂MAPbI3钙钛矿太阳能电池的合成与表征

JPSE (Journal of Physical Science and Engineering) Pub Date : 2021-07-04 DOI: 10.17977/um024v6i22021p040

D. A. Yusra, N. Mufti, E. Latifah

{"title":"Synthesis and Characterization of Magnesium Acetate Doped MAPbI3 Perovskite Solar Cells with Carbon Electrodes","authors":"D. A. Yusra, N. Mufti, E. Latifah","doi":"10.17977/um024v6i22021p040","DOIUrl":"https://doi.org/10.17977/um024v6i22021p040","url":null,"abstract":"The organometal perovskite trihalide (MAPbI3) based solar cell has attracted the attention of many researchers because it has the potential to be a third-generation solar cell that has high efficiency, flexibility and transparency. However, this perovskite solar cell is sensitive to the environment and less stable. In this study, a performance study of perovskite solar cells with the addition of magnesium acetate was carried out in the MAPbI3 synthesis process and the use of carbon electrodes. In general, the perovskite solar cell arrangement in this study consisted of ITO/TiO2 mp/MAPbI3/carbon paste. Mesoporous TiO2 (mp) coating was carried out using the screen printing method, while MAPbI3 coating was carried out with a two-stage spin coating with the addition of magnesium acetate after PbI2 coating in the first stage. The samples obtained were then characterized using an X-Ray Diffractometer (XRD). Analysis of the performance of solar cells was carried out by measuring I-V and photoresponses using a solar simulator. XRD results show that MAPbI3 film has been formed even though there is still impurity of PbI2. The resulting solar cell performance has a value of Voc equals 3.45 V and Jsc equals 0.04 with an efficiency of around 0.09 per cent. In the measurement of the response photo, the increase in time value was 7.29 s and the decay time was 34.38 s. The low-efficiency value is probably due to the absence of a layer of hole transfer materials (HTM) and the presence of PbI2 impurities. However, the stability of the photoresponse pattern against time has shown quite good results even though the response is increased or the decay is slow.","PeriodicalId":265940,"journal":{"name":"JPSE (Journal of Physical Science and Engineering)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115145769","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