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OPTIMIZATION OF PROCESS PARAMETERS FOR WOOD LASER ENGRAVING BASED ON TAGUCHI METHOD APPROACH 基于田口法的木材激光雕刻工艺参数优化
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023053
HUYEN NGUYEN-THI-NGOC, THAI-VIET DANG
{"title":"OPTIMIZATION OF PROCESS PARAMETERS FOR WOOD LASER ENGRAVING BASED ON TAGUCHI METHOD APPROACH","authors":"HUYEN NGUYEN-THI-NGOC, THAI-VIET DANG","doi":"10.17973/mmsj.2023_10_2023053","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023053","url":null,"abstract":"The paper presents the optimization of process parameters for wood laser engraving based on Taguchi method and analysis of variance (ANOVA). Laser diot mini machines using power source 10W is used for the experimental investigation process. The main parameters in the experimental wood surface laser engraving include such as: laser power (P), engraving speed (S), number of engraving lines per 1mm (L) and engraving head focal height (H). The surface geometrical dimensions while engraving, the engraving width (B) and the engraving depth (D) are main factors to determine the performance of engraving lines and the aesthetics of the product. The experiments were designed by the Taguchi L25 orthogonal array to analyze and obtain the important parameters. Then, to evaluate the optimal combination of parameters in the laser engraving process. The research results show that the influence of the factors P, S takes the leading role. Beside the two parameters L and H have a small influence on wood carving products. The optimization results prove that the combination of above factors at the correct values will give the most optimal set of parameters while maximizing the engraving depth (D) and minimizing the engraving width (B).","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547430","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
PICOSECOND PULSED LASER DEPOSITION OF MOS2 THIN FILMS 皮秒脉冲激光沉积mos2薄膜
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023003
JOSE GUADALUPE QUIÑONES-GALVAN, INAM MIRZA, JAN HRABOVSKY, ENRIQUE CAMPOS-GONZALEZ, FRANCISCO DE MOURE-FLORES, JOSE SANTOS-CRUZ, MIGUEL ANGEL SANTANA-ARANDA, ALEXANDER V. BULGAKOV, NADEZHDA M. BULGAKOVA
{"title":"PICOSECOND PULSED LASER DEPOSITION OF MOS2 THIN FILMS","authors":"JOSE GUADALUPE QUIÑONES-GALVAN, INAM MIRZA, JAN HRABOVSKY, ENRIQUE CAMPOS-GONZALEZ, FRANCISCO DE MOURE-FLORES, JOSE SANTOS-CRUZ, MIGUEL ANGEL SANTANA-ARANDA, ALEXANDER V. BULGAKOV, NADEZHDA M. BULGAKOVA","doi":"10.17973/mmsj.2023_06_2023003","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023003","url":null,"abstract":"MoS2 thin films were grown by the pulsed laser deposition technique using a picosecond laser at a wavelength of 1030 nm. The plasma ion mean kinetic energy and density were estimated from the time-of-flight distributions measured using a Langmuir planar probe. It has been found that the mean kinetic energy decreases with increasing the laser pulse energy. This unusual effect is explained by the difference in the volatility of the vaporized species. Samples were structurally characterized by Raman spectroscopy and grazing angle X-ray diffraction. It was found that thin films of amorphous matrices containing MoS2 nanocrystallites were grown. Optical characterization carried out by UV-vis spectroscopy yielded transmittance values above 90% in the visible spectral range and an indirect electronic transition at 1.4 eV. Chemical oxidation states for molybdenum and sulfur were analyzed by means of X-ray photoelectron emission spectroscopy, which revealed Mo-S bonding states, confirming the growth of MoS2.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136169699","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
RESEARCH OF PROPERTIES OF CERAMIC COMPOSITE FIBER PRINTED USING FUSED DEPOSITION MODELING TECHNOLOGY 熔融沉积成型技术打印陶瓷复合纤维的性能研究
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023045
JAN MILDE, PATRIK DOBROVSZKY, PETER VETESKA, MARTINA ORLOVSKA, TOMAS MACHAC, MILOS BITTER, PETER POKORNY
{"title":"RESEARCH OF PROPERTIES OF CERAMIC COMPOSITE FIBER PRINTED USING FUSED DEPOSITION MODELING TECHNOLOGY","authors":"JAN MILDE, PATRIK DOBROVSZKY, PETER VETESKA, MARTINA ORLOVSKA, TOMAS MACHAC, MILOS BITTER, PETER POKORNY","doi":"10.17973/mmsj.2023_06_2023045","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023045","url":null,"abstract":"This research article presents a comprehensive study on ceramic materials using Fused filament fabrication of ceramic (FFFC) for the production of test samples. The study investigates the effects of different production strategies on three types of ceramic materials: experimental ceramic composite fiber (e.c.c.f.)(composite material produced by STU FCHPT), Zirconium Silicate, and White Zirconia. The primary objective is to compare the production times of the different strategies and investigate their effects on the properties of the samples. This research is important because production time is a crucial factor in the manufacturing industry, and minimizing production time without compromising quality is essential. The study aims to explore the impact of various production strategies on the production time and properties of the test samples, such as hardness, porosity, and flexural strength. The experimental procedure involves printing test samples using a MakerBot METHOD X 3D Printer with FDM technology and varying the layer thickness, raster angle, infill density, and other production strategies. The study aims to identify the optimal production strategy for each ceramic material, which can significantly reduce production time while maintaining the desired quality of the parts. Overall, the research provides valuable insights into the optimal production strategies for different types of ceramic materials and contributes to the development of novel, cost-effective, and efficient manufacturing processes for ceramic composites.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136169421","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
FORECASTING THE CUTTING TOOL LIFE CONSIDERING AS A BLOW-UP MODE ITS OPERATION 将刀具寿命作为爆破模式进行预测
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023019
ANTON PANDA, VOLODYMYR NAHORNYI
{"title":"FORECASTING THE CUTTING TOOL LIFE CONSIDERING AS A BLOW-UP MODE ITS OPERATION","authors":"ANTON PANDA, VOLODYMYR NAHORNYI","doi":"10.17973/mmsj.2023_06_2023019","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023019","url":null,"abstract":"The article considers а method for real-time forecasting the cutting tool life, considering as a blow-up mode its operation. The method based on the selection of a log-periodic component in the audio signal accompanying the cutting process. The model of this component contains as the main parameter the time taken as the tool life. To ensure the process control efficiency, when making a decision to stop the cutting process, the residual tool life is determined, which is equal to the difference between the tool life prediction and the current part processing duration.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136169692","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
ENERGY CONSUMPTION, ECONOMIC GROWTH AND DEVELOPMENT FINANCE: EVIDENCE FROM THE MIDDLE-INCOME COUNTRIES AND INNOVATIVE SOLUTIONS FOR EFFECTIVE ENERGY MANAGEMENT IN SMART CITIES 能源消耗、经济增长和发展融资:来自中等收入国家的证据和智慧城市有效能源管理的创新解决方案
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023035
THANG CONG NGUYEN, TRA THI HUONG LAM, SY HOANG NGUYEN
{"title":"ENERGY CONSUMPTION, ECONOMIC GROWTH AND DEVELOPMENT FINANCE: EVIDENCE FROM THE MIDDLE-INCOME COUNTRIES AND INNOVATIVE SOLUTIONS FOR EFFECTIVE ENERGY MANAGEMENT IN SMART CITIES","authors":"THANG CONG NGUYEN, TRA THI HUONG LAM, SY HOANG NGUYEN","doi":"10.17973/mmsj.2023_06_2023035","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023035","url":null,"abstract":"Although energy consumption is highly related to economic growth and development finance, a consensus on the direction of causality among them has not been reached. To this end, this study aims to investigate the causal effect of economic growth and development finance on energy consumption with a focus on middle-income countries over the period of 1994-2014. Our empirical highlights unidirectional causality running from economic growth to total energy consumption; unidirectional causality running from financial development to total energy consumption; unidirectional causality running from renewable energy consumption to financial development; and unidirectional causality running from non-renewable energy consumption to economic growth. Based on the empirical findings, the article proposes some innovative solutions for effective energy management in smart cities towards sustainable development, harmonizing economic development and energy consumption.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136170150","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
RECYCLED PA 12 EXCLUDED FROM PROCESSING BY ADDITIVE TECHNOLOGIES 再生pa12排除在添加剂技术加工之外
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023064
MARTIN SEIDL, JIRI HABR, JIRI SAFKA, JIRI BOBEK
{"title":"RECYCLED PA 12 EXCLUDED FROM PROCESSING BY ADDITIVE TECHNOLOGIES","authors":"MARTIN SEIDL, JIRI HABR, JIRI SAFKA, JIRI BOBEK","doi":"10.17973/mmsj.2023_06_2023064","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023064","url":null,"abstract":"The ecological and economical treatment of derivatives from non-renewable sources is a current trend in the development of polymer systems, which supports global activities leading towards a sustainable environment. This article, therefore, deals with the effective management of powdered waste material (PA 12), which is no longer usable for additive technologies. Throughout recycling process, the material was modified and optimised for injection moulding technology, and transformed into pellets in the next step. The resulting thermoplastic material has a wide application potential, especially with regard to its very good mechanical and physical properties, which are evaluated in this contribution. The advantages of the resulting polymer are based, among other things, on the economic aspect, whereby a material with the nature of a structural plastic will be more available compared to plastics from an analogous category.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136170162","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
COMPARISON OF A WATERCOOLER AND OTHER ALTERNATIVES IN TERMS OF THEIR ENVIRONMENTAL IMPACTS USING THE LCA METHOD 使用lca方法比较水冷却器和其他替代品对环境的影响
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023060
MICHAL SIMON, TOMAS BLACKY, MICHAL ZOUBEK
{"title":"COMPARISON OF A WATERCOOLER AND OTHER ALTERNATIVES IN TERMS OF THEIR ENVIRONMENTAL IMPACTS USING THE LCA METHOD","authors":"MICHAL SIMON, TOMAS BLACKY, MICHAL ZOUBEK","doi":"10.17973/mmsj.2023_06_2023060","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023060","url":null,"abstract":"The environmental impacts of products are evaluated based on an assessment of the influence of material and energy flows that the evaluated product system exchanges with the environment. The University of Southern Denmark is also dealing with this, and from the point of view of sustainable development, drinking watercoolers are being investigated using the Life Cycle Assessment method. This research conducts a Life Cycle Impact Assessment of drinking water supply systems at a university to determine if they fit the institution's sustainability agenda. In the evaluation, the impact of one beverage delivered from watercoolers is compared with beverages from five benchmarked systems. These systems are tap water, ice-chilled water, bottled water, soft drinks and hot drinks. They are set up in scenarios that are directly used for evaluation and subsequent comparison. This study uses a variant of “Cradle-To-Grave” Life Cycle Assessment, where a full assessment occurs from resource extraction to disposal, while using an attributive approach. The results of the life cycle assessment showed which system has the lowest impact and the results are quantified. Finally, based on the results of the life cycle assessment, the most suitable water chiller system is recommended and the University management is provided with information for further decision making.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136170354","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
SELECTION OF MATERIALS BASED ON HYDROXYLAPATITE USING THE METHOD OF ANALYSIS OF HIERARCHY 材料的选择以羟基磷灰石为基础，采用层次分析法
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023016
ANTON PANDA, VADYM CHERNOBROVCHENKO, KOSTIANTYN DYADYURA, LEONID SUKHODUB, MARIIA KUMEDA, MARCEL BEHUN
{"title":"SELECTION OF MATERIALS BASED ON HYDROXYLAPATITE USING THE METHOD OF ANALYSIS OF HIERARCHY","authors":"ANTON PANDA, VADYM CHERNOBROVCHENKO, KOSTIANTYN DYADYURA, LEONID SUKHODUB, MARIIA KUMEDA, MARCEL BEHUN","doi":"10.17973/mmsj.2023_06_2023016","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023016","url":null,"abstract":"Biomaterials are artificial or natural materials that replace diseased or damaged bone tissue, recently with increasing interest in interdisciplinary approaches, including e.g. bioengineers. Such materials must be mechanically strong and not cause undesirable reactions. Due to the many factors that need to be considered, choosing the right material becomes a challenge. The relevance of the study lies in the development of a method for choosing a synthetic material based on hydroxyapatite for bone tissue restoration. Hierarchy analysis method was used and a set of five materials and their seven mechanical and biological parameters were analyzed.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136170521","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
COPYRIGHT PROTECTION IN ADDITIVE MANUFACTURING 增材制造中的版权保护
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023030
HOANG-SY NGUYEN, MINH THANH NGUYEN, JIRI HAJNYS, MAREK PAGAC
{"title":"COPYRIGHT PROTECTION IN ADDITIVE MANUFACTURING","authors":"HOANG-SY NGUYEN, MINH THANH NGUYEN, JIRI HAJNYS, MAREK PAGAC","doi":"10.17973/mmsj.2023_06_2023030","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023030","url":null,"abstract":"Additive Manufacturing (AM) has been proven to be a significant development for production as well as become an attractive alternative manufacturing process compared with Subtractive Manufacturing (SM). This can be explained by the massive advantages of AM including mass customisation, less material wastage and ability to create prototypes. However, in order to make use of the AM process, firms, developers and designers require a virtual sharing platform, which can be used to trade designs and make the whole industry better off. This desire requires ways to protect the models and designs from digital thieves. Moreover, internal transactions of designs inside a single firm also require a significant level of security. So, this paper offers different ways of protecting both physical models and virtual designs. The solutions in this paper can be used to ensure the integrity of the physical products and virtual designs during different kinds of transactions.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136169686","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 PEDESTRIAN-TRAM COLLISION PHENOMENA: POSSIBILITIES OF SIMULATION MODELS VALIDATION 行人与电车碰撞现象分析:仿真模型验证的可能性
MM Science Journal Pub Date : 2023-06-01 DOI: 10.17973/mmsj.2023_06_2023043
ROMAN JEZDIK, VOJTECH RULC, PETR KUBOVY, VLADISLAV KEMKA, JAN KOVANDA, BARBORA MLEJNKOVA, TOMMY TIKKANEN
{"title":"ANALYSIS OF PEDESTRIAN-TRAM COLLISION PHENOMENA: POSSIBILITIES OF SIMULATION MODELS VALIDATION","authors":"ROMAN JEZDIK, VOJTECH RULC, PETR KUBOVY, VLADISLAV KEMKA, JAN KOVANDA, BARBORA MLEJNKOVA, TOMMY TIKKANEN","doi":"10.17973/mmsj.2023_06_2023043","DOIUrl":"https://doi.org/10.17973/mmsj.2023_06_2023043","url":null,"abstract":"The article deals with the validation of the pedestrian simulation model as the initial study for future virtual testing of the tram front-end. The vision of virtual modeling approval is the main motivation of the study. The biofidelity of existing models was the subject of volunteer tests. The data are utilized for assessment of both adapted real anthropomorphic test device and presented simulation models created by means of commercial computer systems LS-DYNA and RADIOSS. Two basic tram front-end geometry were used in the pedestrian collision simulations. The resulting physical data are presented. The article demonstrates the complexity of the problem under study [Margaritis 2007] and confirms the correctness of the segment testing used in the automotive area.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136169689","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
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