Pub Date : 2023-11-17DOI: 10.55766/sujst-2023-04-e0843
Gargi J Trivedi, Rajesh Sanghvi
Accurate diagnosis of diseases is essential for effective medical treatment, and medical image fusion plays a crucial role in achieving this goal. This article proposes a novel technique for multimodal medical image fusion based on fourth order PDE-based techniques. The proposed technique uses inputted CT and brain MRI images, and applies a PDE-based technique for noise reduction and edge preservation. Subsequently, a computed fusion rule using principal component analysis is applied to generate a fused image of the brain that presents clear and essential components for medical diagnosis and analysis. The article provides a comparative study of the proposed technique with other existing techniques, demonstrating its optimal performance. The proposed technique can significantly enhance medical image diagnosis and analysis for accurate disease detection and treatment.
{"title":"New Approach for Multimodal Medical Image Fusion using PDE-based Technique","authors":"Gargi J Trivedi, Rajesh Sanghvi","doi":"10.55766/sujst-2023-04-e0843","DOIUrl":"https://doi.org/10.55766/sujst-2023-04-e0843","url":null,"abstract":"Accurate diagnosis of diseases is essential for effective medical treatment, and medical image fusion plays a crucial role in achieving this goal. This article proposes a novel technique for multimodal medical image fusion based on fourth order PDE-based techniques. The proposed technique uses inputted CT and brain MRI images, and applies a PDE-based technique for noise reduction and edge preservation. Subsequently, a computed fusion rule using principal component analysis is applied to generate a fused image of the brain that presents clear and essential components for medical diagnosis and analysis. The article provides a comparative study of the proposed technique with other existing techniques, demonstrating its optimal performance. The proposed technique can significantly enhance medical image diagnosis and analysis for accurate disease detection and treatment.","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":"139265344","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}
Pub Date : 2023-11-17DOI: 10.55766/sujst-2023-04-e01026
Umair Ujala, S. Shukla, S. N. Pandey
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.
{"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}
Pub Date : 2023-11-17DOI: 10.55766/sujst-2023-04-e0775
B. J, J. S, A. Tk, S. K
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”.
{"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}
Pub Date : 2023-11-16DOI: 10.55766/sujst-2023-05-e02618
P. Chumsamrong, Wachirabhorn Pongputthipat, Y. Ruksakulpiwat
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).
{"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}
Pub Date : 2023-11-15DOI: 10.55766/sujst-2023-05-e02594
J. Mahadlek, T. Phaechamud, P. Toungsuwan
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.
{"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}
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
{"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}
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.
{"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}
Pub Date : 2023-11-10DOI: 10.55766/sujst-2023-05-e01597
P. S. Akshatha, Harshith D, Dilip Kumar S M
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
{"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}
Pub Date : 2023-11-10DOI: 10.55766/sujst-2023-05-e01018
S. Patil, Tejaswini Nikhil Bhagwat
The authors' goal was to calculate average representative unit hydrographs (UHs) from a few isolated storms for the upper Warana River basin in Maharashtra, India. Based on the approaches used by Snyder, the Soil Conservation Service (SCS), the Central Water Commission (CWC), and Common, synthetic unit hydrographs were created. This study was utilised to choose appropriate correlation coefficients for Synthetic Unit Hydrograph (SUH) evaluation for the ungauged basins with identical hydrological conditions. The outcomes were then analyzed with those attained using other techniques and with the actual UH. In order to calibrate and validate the effectiveness of Snyder's model, the authors employed it on the sub-basins of the Warana river basin. The hydrograph's shape resembled the observed UH produced by the other methods, according to the results, and the peak discharge calculated using Snyder's technique had the lowest percentage error (0.26%)
{"title":"PREDICTION OF RUNOFF BY SYNTHETIC UNIT HYDROGRAPH METHODS FOR THE DESIGN STORMS IN WARANA RIVER BASIN, MAHARASHTRA, INDIA","authors":"S. Patil, Tejaswini Nikhil Bhagwat","doi":"10.55766/sujst-2023-05-e01018","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e01018","url":null,"abstract":"The authors' goal was to calculate average representative unit hydrographs (UHs) from a few isolated storms for the upper Warana River basin in Maharashtra, India. Based on the approaches used by Snyder, the Soil Conservation Service (SCS), the Central Water Commission (CWC), and Common, synthetic unit hydrographs were created. This study was utilised to choose appropriate correlation coefficients for Synthetic Unit Hydrograph (SUH) evaluation for the ungauged basins with identical hydrological conditions. The outcomes were then analyzed with those attained using other techniques and with the actual UH. In order to calibrate and validate the effectiveness of Snyder's model, the authors employed it on the sub-basins of the Warana river basin. The hydrograph's shape resembled the observed UH produced by the other methods, according to the results, and the peak discharge calculated using Snyder's technique had the lowest percentage error (0.26%)","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":"139281007","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}
Pub Date : 2023-11-10DOI: 10.55766/sujst-2023-05-e0870
A. Zulfikar, Mohd Yaakob
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.
{"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}
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