Suranaree Journal of Science and Technology最新文献_第7页

New Approach for Multimodal Medical Image Fusion using PDE-based Technique 基于 PDE 技术的多模态医学影像融合新方法

Suranaree Journal of Science and Technology Pub Date : 2023-11-17 DOI: 10.55766/sujst-2023-04-e0843

Gargi J Trivedi, Rajesh Sanghvi

引用次数: 0

NEW SPHERICALLY SYMMETRIC ANISOTROPIC NEUTRON STAR MODEL USING FIELD EQUATIONS 使用场方程的新球面对称各向异性中子星模型

Suranaree Journal of Science and Technology Pub Date : 2023-11-17 DOI: 10.55766/sujst-2023-04-e01026

Umair Ujala, S. Shukla, S. N. Pandey

{"title":"NEW SPHERICALLY SYMMETRIC ANISOTROPIC NEUTRON STAR MODEL USING FIELD EQUATIONS","authors":"Umair Ujala, S. Shukla, S. N. Pandey","doi":"10.55766/sujst-2023-04-e01026","DOIUrl":"https://doi.org/10.55766/sujst-2023-04-e01026","url":null,"abstract":"In this paper, we obtain a new static spherically symmetric anisotropic fluid model of a neutron star in curvature coordinates. We consider , where , by taking the value of parameter in Durgapal solutions (Durgapal, 1982). The energy density, radial pressure, tangential pressure, and redshift are positive finite, and decreasing with respect to the increasing radius in this model. The pressure and density also decrease from the inner core to the crust of the object. We obtain this model by the specific choice of the constants and the anisotropy factor . The central value of the anisotropy factor is zero due to the perfect fluid nature at the center of the anisotropic model and it is increasing with the increasing radius. In our analysis we take and The model well behaves for the anisotropic neutron stars, which is shown analytically and graphically. The solution is free from any central singularity. We take realistic objects such as EXO 1785-248, SMC X-1, Her X-1, 4U 1538-52, LMC X-4, RX J1856-37, Cen X-3, PSR J1903-327, and Vela X-1 to represent our solutions graphically and numerically. We obtain this solution for for the first time. Therefore, the solution is quite new and derived for the first time.","PeriodicalId":509211,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139266284","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

PROOF-OF-STAKE CONSENSUS METHOD FOR UPCOMING BLOCKCHAIN NETWORKS 即将推出的区块链网络的权益证明共识方法

Suranaree Journal of Science and Technology Pub Date : 2023-11-17 DOI: 10.55766/sujst-2023-04-e0775

B. J, J. S, A. Tk, S. K

{"title":"PROOF-OF-STAKE CONSENSUS METHOD FOR UPCOMING BLOCKCHAIN NETWORKS","authors":"B. J, J. S, A. Tk, S. K","doi":"10.55766/sujst-2023-04-e0775","DOIUrl":"https://doi.org/10.55766/sujst-2023-04-e0775","url":null,"abstract":"Currency transaction is a major part that had to be made secured. So rather than making usual currency transactions, there is a secured way of currency transactions by using cryptocurrency which has the concept of blockchain. In today's world, the advancement of cryptocurrency facilitates every individual to make use of cryptocurrency for investing savings and transactions. Hence we can witness the huge number of transactions are occurring per second. Hence it is transforming the way of understanding the currency in a digitalized manner. It invokes interposer to interlope in the particulars of the transactions. To make an ensured transaction, we are using APC cryptocurrency. This APC cryptocurrency transaction is made protected with the support of blockchain so that every user utilizing the APC for their transactions, can be more confident in doing their currency operations. The biggest demand of every user is securing their transaction details regarding the usage of cryptocurrency. Therefore, by using the hashing algorithm we are converting the values of the user’s transactions details into hash values. The transaction details are validated using a validator and the validations are fact-checked by the administration, with the implementation of the modal concept of “proof of stake”.","PeriodicalId":509211,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139265913","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

THE APPLICATION OF RICE STRAW-BASED PLA/NR BIOCOMPOSITE AS GREEN PLANTING BAGS 应用稻草基 pla/nr 生物复合材料作为绿色种植袋

Suranaree Journal of Science and Technology Pub Date : 2023-11-16 DOI: 10.55766/sujst-2023-05-e02618

P. Chumsamrong, Wachirabhorn Pongputthipat, Y. Ruksakulpiwat

{"title":"THE APPLICATION OF RICE STRAW-BASED PLA/NR BIOCOMPOSITE AS GREEN PLANTING BAGS","authors":"P. Chumsamrong, Wachirabhorn Pongputthipat, Y. Ruksakulpiwat","doi":"10.55766/sujst-2023-05-e02618","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e02618","url":null,"abstract":"This study’s primary objective was to observe the growth of marigold seedling in biodegradable planting bags made from polylactic acid (PLA), natural rubber (NR), and rice straw (RS) film, as well as the biodegradation of the bags during planting. The flexible PLA/NR/RS film was produced using a PLA/NR blend ratio of 70:30 percent by weight (wt%) as a matrix and filled with RS at 3, 5, and 10 wt%. All PLA/NR/RS biocomposite films were produced via an extrusion casting method. To examine the growth efficiency of marigold seedlings in biodegradable planting bags, marigold seedlings were transferred into PLA/NR/RS biocomposite bags. After being planted for 90-days, the stalk diameter and dry mass of the marigold seedlings grown in the PLA/NR/RS biocomposite bags tended to increase with increasing RS content. The biodegradability of all PLA/NR/RS biocomposite bags was measured by how much weight each bag lost after marigold seedlings were planted in it. The amount of rice straw in PLA/NR/RS biocomposite bags was found to affect how much weight they lost. Maximum weight loss was observed when the film contained 10 wt% RS fiber, which corresponded to the lowest PLA molecular weight assessed by gel permeation chromatography (GPC).","PeriodicalId":509211,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139267980","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

α-MANGOSTIN/CLOVE OIL-INCORPORATED LAURIC ACID-BASED SOLVENT REMOVAL-INDUCED IN SITU FORMING MATRICES α-芒果苷/椰子油包含的月桂酸类溶剂在原位形成材料中的去除诱导作用

Suranaree Journal of Science and Technology Pub Date : 2023-11-15 DOI: 10.55766/sujst-2023-05-e02594

J. Mahadlek, T. Phaechamud, P. Toungsuwan

{"title":"α-MANGOSTIN/CLOVE OIL-INCORPORATED LAURIC ACID-BASED SOLVENT REMOVAL-INDUCED IN SITU FORMING MATRICES","authors":"J. Mahadlek, T. Phaechamud, P. Toungsuwan","doi":"10.55766/sujst-2023-05-e02594","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e02594","url":null,"abstract":"Typically, the bacteria in periodontal pocket of periodontitis disease are capable of producing a number of virulence factors, which are directly toxic to host tissues or immune cells, or indirectly damage host tissues via induction of inflammatory cytokines. The eradication of these microbes from periodontal pocket is one of crucial processes of periodontitis treatment. The α-mangostin from Garcinia mangostana Linn has the most potent antibacterial activity with less tendency to acquire resistance; therefore, it is interesting for using as active compound for periodontitis treatment. This study focuses on the development of in situ forming matrices (ISM) involving 50% w/w lauric acid, 5% w/w clove oil and different α-mangostin amount in NMP for periodontal drug delivery. Physicochemical properties of ISM were investigated including pH, density, viscosity, surface tension, in vitro matrix formation, and injectability. Antimicrobial activities of formulated ISM against three standard microbes were evaluated using agar cup diffusion methods. The pH and density of all α-mangostin and clove oil-loaded 50% w/w lauric acid matrices was 4.40 ± 0.04 to 4.78 ± 0.20 and 0.960 ± 0.000 to 0.963 ± 0.001 g/cm3, respectively. The increasing α-mangostin amounts significantly increased the viscosity of prepared formulation and injection force. All formulations had low viscosity that it was easy to injection and spreadable in the periodontal pockets. After contact PBS pH 6.8, they transformed as matrix and the hydrophobic manner of clove oil retarded a solvent exchange. These prepared formulations showed the antimicrobial activities against Staphylococcus aureus ATCC 6538, Escherichia coli ATCC 25922, and Candida albicans ATCC 17011. Hence, they are the potential systems for periodontal drug delivery.","PeriodicalId":509211,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139273063","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

Feasibility Analysis of the Food Safety Standard Accreditation for the Local Dessert Enterprise at Chiang Rai, Thailand : A Case Study of the Sticky rice in Coconut enterprise 泰国清莱当地甜品企业食品安全标准认证可行性分析：椰子糯米饭企业案例研究

Suranaree Journal of Science and Technology Pub Date : 2023-11-14 DOI: 10.55766/sujst-2023-05-e0144

Vivat Keawdounglek, Weerayuth Siriratruengsuk, Anuttara Hongtong

{"title":"Feasibility Analysis of the Food Safety Standard Accreditation for the Local Dessert Enterprise at Chiang Rai, Thailand : A Case Study of the Sticky rice in Coconut enterprise","authors":"Vivat Keawdounglek, Weerayuth Siriratruengsuk, Anuttara Hongtong","doi":"10.55766/sujst-2023-05-e0144","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e0144","url":null,"abstract":"The aim of this study is to determine the feasibility of a food safety standard accreditation based on a sticky rice in coconut enterprise in Chiang Rai, Thailand. One enterprise was included for the purposive sampling of this study. The methodology consists of the assessment of the details for the production process, and the physical and environmental assessment. To assess the biological contamination, the most probable number or MPN method were used for the cleanliness for the production process, and the water quality. The results illustrated that they are lacking in personal hygiene training, a wastewater treatment system, and one-way entrance and departure. Therefore, to minimize the wastewater pollutants from their process, they should implement the basic treatment, such as a grease tap. Additionally, they should construct the entry and exit as a one-way, reducing the likelihood of cross-contamination. To improve the excellent practices for food safety on their production process, they should also receive training in food sanitation and safety","PeriodicalId":509211,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139277157","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

FEASIBILITY STUDY ON PREPARATION OF RICE STRAW NONWOVEN COATED WITH CHITOSAN FOR REACTIVE DYE ADSORPTION 制备壳聚糖包覆的用于活性染料吸附的稻草无纺布的可行性研究

Suranaree Journal of Science and Technology Pub Date : 2023-11-10 DOI: 10.55766/sujst-2023-05-e02564

Jitsopa Chaliewsak, Sirinun Keanthong, Phannaphat Phromphen

{"title":"FEASIBILITY STUDY ON PREPARATION OF RICE STRAW NONWOVEN COATED WITH CHITOSAN FOR REACTIVE DYE ADSORPTION","authors":"Jitsopa Chaliewsak, Sirinun Keanthong, Phannaphat Phromphen","doi":"10.55766/sujst-2023-05-e02564","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e02564","url":null,"abstract":"Rice straw is the most abundant agricultural waste material in Thailand. Therefore, this research was interested in utilizing rice straw and adding value by preparing a reactive dye bioadsorbant. The aims of this research were to prepare rice straw nonwovens by the wet-laid process, study chitosan-coated nonwovens by the dip coating method, and evaluate the reactive dye adsorption capacity of the coated nonwovens. The ratio of weight per unit area of the prepared nonwovens was controlled. The nonwovens were dipped in chitosan solutions (0.5, 1, and 1.5 wt% of chitosan) to prepare chitosan coated nonwovens. Reactive dye adsorption capacity, chemical structure, morphology, and physical properties of the nonwovens were investigated. It was found that rice straw nonwoven coated with chitosan increased in thickness, hardness, and water resistance properties with increasing chitosan concentration. Chitosan-coated nonwoven, at 15% chitosan concentration and a contact time of 72 hours, was able to adsorb 38.40% of the reactive azo dye, C.I. Reactive Blue 194 (50 mg/L). The dye absorbency of the chitosan-coated nonwovens increased with the increase in the chitosan-coated concentration and the contact time. In addition, the chitosan-coated nonwovens could remain on rice straw cellulose nonwoven surfaces under reactive dye immersion for at least 72 hours without change. The results indicated that rice straw nonwovens coated with chitosan by the dip coating method had reactive dye adsorption abilities.","PeriodicalId":509211,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139281396","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

GOLPMA: GROUP ORIENTED LIGHTWEIGHT PAYLOAD-BASED MUTUAL AUTHENTICATION FOR SECURED IoT COMMUNICATION GOLPMA：用于安全物联网通信的以群体为导向、基于负载的轻量级互认技术

Suranaree Journal of Science and Technology Pub Date : 2023-11-10 DOI: 10.55766/sujst-2023-05-e01597

P. S. Akshatha, Harshith D, Dilip Kumar S M

{"title":"GOLPMA: GROUP ORIENTED LIGHTWEIGHT PAYLOAD-BASED MUTUAL AUTHENTICATION FOR SECURED IoT COMMUNICATION","authors":"P. S. Akshatha, Harshith D, Dilip Kumar S M","doi":"10.55766/sujst-2023-05-e01597","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e01597","url":null,"abstract":"The rise of the Internet of Things (IoT) has increased the emphasis on protecting device communication. The Constrained Application Protocol (CoAP) extensively utilizes Datagram Transport Layer Security (DTLS) to provide end-to-end security; however, DTLS has a high connection overhead. This work presents a new Group Oriented Lightweight Payload-based Mutual Authentication (GOLPMA) mechanism that authenticates clients and servers before permitting communication using the Advanced Encryption Standard (AES). GOLPMA combines and improves essential parts of the CoAP architecture, resulting in a low-overhead, dependable, and computationally efficient alternative to DTLS. The payload-based mutual authentication technique only requires two round-trip message exchanges and restricts the payload of each message to 256 bits. GOLPMA surpasses typical DTLS/CoAP techniques based on throughput, latency, packet delivery ratio, average response time, mean jitter, authentication time and energy consumption in two separate network topologies with 15 and 30 nodes when examined using the Cooja simulator on Contiki OS. The results suggest that GOLPMA could be a safe, low-power replacement for DTLS in IoT applications","PeriodicalId":509211,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139280880","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

PREDICTION OF RUNOFF BY SYNTHETIC UNIT HYDROGRAPH METHODS FOR THE DESIGN STORMS IN WARANA RIVER BASIN, MAHARASHTRA, INDIA 印度马哈拉施特拉邦瓦拉纳河流域设计暴雨时采用合成单位水文图法预测径流量

Suranaree Journal of Science and Technology Pub Date : 2023-11-10 DOI: 10.55766/sujst-2023-05-e01018

S. Patil, Tejaswini Nikhil Bhagwat

引用次数: 0

HYBRID LAMINATE COMPOSITE CURVE STRUCTURE AS CYLINDRICAL CONCRETE COLUMN REINFORCEMENT 混合层压复合曲线结构作为圆柱形混凝土柱加固材料

Suranaree Journal of Science and Technology Pub Date : 2023-11-10 DOI: 10.55766/sujst-2023-05-e0870

A. Zulfikar, Mohd Yaakob

{"title":"HYBRID LAMINATE COMPOSITE CURVE STRUCTURE AS CYLINDRICAL CONCRETE COLUMN REINFORCEMENT","authors":"A. Zulfikar, Mohd Yaakob","doi":"10.55766/sujst-2023-05-e0870","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e0870","url":null,"abstract":"Composite materials are well known for their lightweight, easy to form, high elastic properties, and relatively low production costs. Laminated composites are composite materials that are widely applied in modern building structures such as aircraft walls, automotive cases, dashboards, press boards, etc. In this study, a curved laminated composite material was used as a reinforcing material surrounding the column structure. This study aims to analyze the mechanical strength of curved laminated composite materials as reinforcement for the cylindrical column concrete structure. Compressive testing of composite materials using the ASTM C39 standard. The materials used are jute fabric, e-glass, epoxy resin, and concrete aggregate. Specimens were molded using a vacuum bagging technique to minimize trapped air in the matrix. The curve shape of the laminated composite was obtained from the shape of the ASTM C39 concrete specimen with a diameter of 50 mm and a length of 150 mm. Based on the results of the study, the compressive strength of the structure increased up to 100% when the jute fabric was given up to 2 layers. Furthermore, the strength of the structure will increase up to 150% in the application of jute e-glass hybrid laminate composite.","PeriodicalId":509211,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139281278","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