Advances in Technology Innovation最新文献

{"title":"Analyzing Data Encryption Efficiencies for Secure Cloud Storages: A Case Study of Pcloud vs OneDrive vs Dropbox","authors":"Steven Gamnis, M. Vanderlinden, A. Mailewa","doi":"10.31357/ait.v2i1.5526","DOIUrl":"https://doi.org/10.31357/ait.v2i1.5526","url":null,"abstract":"Now more than ever has it become important to keep the information confidential in an age that is losing its value of individual privacy. In this cloud computing era, regardless of the power of the cloud computing concept, many people do not know that their information can be used and sent to third parties from their cloud storage provider. Today the use of cloud storage is well established however the security of protecting the data on the cloud is a limited thought for most users. Therefore, this study aims to experimentally research which encryption program works best when storing data onto three of the main cloud storage providers currently available on the market. This study will go over the hardware and network impact as well as the time to encrypt and decrypt the data. This study will determine if “7zip” or “rclone” encryption programs work best with these three cloud storage. The data will be collected using NetData tool and accordingly determine which encryption application works best with which cloud storage provider. Thereafter, based on the data analysis, it is recommended that experimental outcomes to all users to keep their sensitive data secured and safe from snooping or prevent private information from being collected and sold to third parties with the help of black market.","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82816079","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}

{"title":"Investigation of Field Performance and Film Properties of Natural Rubber Latex Preserved with a Novel Chemical","authors":"Dinesha Thavaseelan, A. Nilmini, Gayan A Appuhamillage, S. Siriwardena","doi":"10.31357/ait.v2i1.5453","DOIUrl":"https://doi.org/10.31357/ait.v2i1.5453","url":null,"abstract":"The traditional long-term preservative system of latex has an impact on environmental air pollution by ammonia and leads to the production of carcinogenic nitrosamine substances by tetramethyl thiuram disulfide (TMTD). In this research, ammonia and a novel preservative with a polysulfidic link were compounded and tested as a novel traditional long-term latex preservative system, to overcome the drawbacks of traditional preservative systems. Control samples were prepared with ammonia as the standard preservative. In addition, ammonia and the novel chemical mixed samples were also prepared for investigating the combined effect. After the preservation treatment, the stable nature of field NR latex was evaluated via the Volatile Fatty Acid (VFA) test based on ASTM D 1076 standard. The Dry Rubber Content (DRC) test and Total Solid Content (TSC) test were carried out for VFA calculation purposes based on ISO126:2005 and ASTM D 1076 standards, respectively. The alkalinity test was carried out to maintain the required ammonia content in latex. In the first trial, traditional dispersion preparation of novel chemical dispersion failed due to the large particle size of the novel chemical. Therefore, two different novel chemical dispersions were prepared in the second trial, where dispersions 1 and 2 were prepared with wetting agents and without using a wetting agent, respectively. It was found that 0.020%v/v and 0.025% v/v concentrations of the novel chemical from dispersion 1 allowed the preservation of field NR latex for 8 days. A low concentration (0.015% v/v) of the novel chemical was able to keep latex with good stability for 5 days. The novel chemical dispersion without a wetting agent exhibited a marvelous preservative system to NR latex than with a wetting agent, because the wetting agent creates a barrier between particles of novel chemical and latex particles. The novel preservative acts as a good preservative while reducing the fumes of ammonia being emitted and eliminating the carcinogenic nitrosamine emission from TMTD.","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82549830","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}

{"title":"Social and Situational Influences on Customer Shift Towards Self-Service Technologies","authors":"Sandamali Galdolage","doi":"10.31357/ait.v2i1.5498","DOIUrl":"https://doi.org/10.31357/ait.v2i1.5498","url":null,"abstract":"In recent years, significant developments have occurred in the service sector, most notably the introduction of technological interfaces to customer care interactions. Even though businesses invested heavily in Self-Service Technologies (SSTs) in the hope of maximizing their benefits, customers have not adopted the technology in the manner anticipated. Among many reasons behind customer movement towards SSTs, this study investigates the social and situational influences which have received little attention in scholarly work. To accomplish this purpose, a qualitative methodology is used, with 25 semi-structured interviews performed with SST users who were chosen using a purposive sampling method, and the responses were analyzed using the thematic analysis method. The study identified the influences of numerous social groups and classified them into three categories: personal sources, organizational sources, and the society at large. Eight situational factors were found as influencing to use SSTs: travel limitations, crowding, urgency, number/volume of transactions, nature of transactions, task complexity, payment mode, group/alone behaviors. This understanding fills the gap in the literature while providing insights to SST service providers that are needed to promote SST use and handle various conditions in which their customers' SST usage may fluctuate from situation to situation.","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85156446","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}

{"title":"Bioactive, Microbiological, and Sensory Properties of Sargassum cristaefolium and Sargassum crassifolium Herbal Tea","authors":"Dulanji Silva, B.V.A.S.M Bambaranda, D. Mudannayake","doi":"10.31357/ait.v2i1.5456","DOIUrl":"https://doi.org/10.31357/ait.v2i1.5456","url":null,"abstract":"Sargassum is a genus of brown seaweed rich in bioactive compounds such as fucoidan which has various health promoting properties including anti-cancer activity, anti-viral activity, and anti-inflammatory activity. This study examines the potential to develop herbal tea using Sargassum cristaefolium and Sargassum crassifolium Seaweeds were collected from the southern coastal area of Sri Lanka and identified using a morphological key. Each seaweed type was thoroughly cleaned, blanched, and dehydrated either by oven-drying (40 ℃ for 48 h) or freeze-drying technique and separately ground to a coarse powder, which resulted in four treatments as oven-dried S. cristaefolium and S. crassifolium, and freeze-dried S. cristaefolium and S. crassifolium. Dried Sargassum powders were analyzed separately for moisture content, total phenolics (Folin-ciocalteu method), total flavonoids (Aluminum chloride method), and radical scavenging activity (DPPH method), total carotenoids, and fucoidan content (spectrophotometric method). Freeze-dried Sargassum powder samples gave significantly higher total phenolic content (P<0.05) compared to oven-dried Sargassum powder. Total phenolics content of S. crassifolium and S. cristaefolium were 0.73± 0.12 and 1.27± 0.32 mg gallic acid equivalents/g dry weight, respectively. Total flavonoid contents were not significantly different among the S. cristaefolium and S. crassifolium seaweed powder considering oven drying and freeze-drying method. Freeze-dried Sargassum powders gave significantly higher radical scavenging activity (P<0.05) than oven-dried Sargassum powders. Radical Scavenging activities of freeze-dried S.crassifolium and S.cristaefolium powders were 34.6%± 1.87 and 46.83±8.30%, respectively. Oven-dried Sargassum powders gave significantly higher total carotenoid content (P0.05) than freeze-dried powders. Total carotenoid content of S.crassifolium was 1.88± 0.002 µg/g dry weight while it was 1.86± 0.089 µg/g dry weight for S.cristaefolium. Freeze-dried Sargassum powders gave higher fucoidan content than oven-dried powders however there were no significant differences in the fucoidan content considering the four treatments and their tea liquors. Fucoidan content of the freeze-dried S.crassifolium seaweed powder was 30.74± 6.36 mg/200 mL, while that of S.cristaefolium was 30.0± 4.09 mg/200 mL. A 5 g weighed tea bag was brewed in 200 mL distilled water for 20 min for the preparation of herbal tea. The highest overall acceptability was taken from the oven-dried S.cristaefolium tea from the sensory evaluation. Results revealed that Sargassum powders can be successfully used as herbal tea with functional properties.","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85556366","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}

{"title":"Diagnosing Mathematics Ability of Technology Students: Misconceptions in Algebra","authors":"Rovini Rathnayake, G. Jayakody","doi":"10.31357/ait.v2i1.5477","DOIUrl":"https://doi.org/10.31357/ait.v2i1.5477","url":null,"abstract":"Catering to a long-standing need in the country, the technology stream was introduced to the G.C.E. (A/L) in Sri Lanka in 2015 with one compulsory subject Science for Technology formed by combining six Science subjects including Mathematics. There is no argument that a sound Mathematics background is essential to produce a good technology graduate. Not only do technologists need Mathematics knowledge in technological applications, but also the logical, analytical, and critical thinking developed through the learning of mathematics is essential for them in solving problems. Hence, technology faculties around the country observe that the command in mathematics of their new entrants needs improvement. As a diagnosis and to uplift their mathematics achievement, this study aims to explore one aspect of their mathematics knowledge: common mistakes and misconceptions. This paper reports on the extent to which algebraic mistakes are made by students entering Technology Faculties. The data for this study comes from a three-week online intensive mathematics course that students follow, prior to commencing their degree program. Students ask to respond to ten questions designed to capture errors in algebraic manipulations. The analysis of data shows a lack of understanding of the intricacies of division by zero consequently resulting in cancellation errors, erroneous manipulations of algebraic expressions, and improper use of parenthesis and priority of exponents in the order of operations. Another mistake is extending the distributive property of multiplication over addition erroneously to distributing multiplication over multiplication. More importantly, the data reveals a training these students have received in school that is mathematically less precise and therefore highlights the need to make students unlearn these erroneous habits that is ingrained in them for many years. Further, these results urge instructors to incorporate purposeful remedial actions into their early mathematics courses to better prepare them for their future technology.\u0000 \u0000Full paper submission of ICIET 2021","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85067381","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}

{"title":"Effect of Extraction Techniques on Phytochemicals and Antioxidants Activity of Garcinia quaesita Leaves","authors":"S. Kokilananthan, V. Bulugahapitiya, H. Manawadu, C. S. Gangabadage","doi":"10.31357/ait.v2i1.5444","DOIUrl":"https://doi.org/10.31357/ait.v2i1.5444","url":null,"abstract":"Garcinia quaesita is an endemic plant in Sri Lanka with a wide array of domestic and medicinal values, yet very limited studies have been reported. The goal of this study was to investigate the phytochemicals and antioxidants capacity of leaves of G. quaesita under different extraction techniques in order to monitor the effect of extraction techniques on the above parameters. Water was used as the solvent and four extraction methods, namely sonication (EN01, one-hour,RT, 40 kHz), Soxhlet (EN02, six-hours, 105 ºC), maceration with agitation (EN03, six-hours, RT, 1000 rpm), and maceration with agitation upon heating (EN04, six-hours, 60 ºC, 1000 rpm), were applied. Phytochemical screenings and quantification of polyphenolics (TPC), flavonoids (TFC), tannins (TTC), terpenoids (TC), saponins (SC), and alkaloids (AC) were performed using standard methods, whereas antioxidants capacity was assessed using FRAP and DPPH assays. The results revealed that G. quaesita contains a wide range of phytochemicals and the TPC, TTC and SC profiles appeared to be higher in the extraction process of EN04 (60.73 ± 0.06 mg GAE/g, 60.12 ± 0.06 mg TAE/g, and 257.64 ± 0.72 mg SE/g, respectively) whereas those were lower in the technique EN01. In addition, TFC and TC levels were high in EN02 (3.02 ± 0.00 mg QE/g and 17.75 ± 0.04 mM LE/g respectively) and besides, TFC was low in method EN03, whereas TC was low in EN01. Interestingly, AC was found to be higher in EN03 (1.16 ± 0.03 mg AE/g) and lesser in EN02. Total antioxidant capacity ( FRAP value) was calculated to be higher in extraction method EN04 (72.08 ± 0.00 mg Trolox Eq/g) whereas it was lower in extraction method EN01. The method, EN03 gave the lower IC50 value in DPPH radical scavenging assay (10.49 ± 0.12 mg/ml), indicating high scavenging activity. In conclusion, the extraction technique EN04 is well suitable to extract polyphenolics and antioxidants from G. quaesita leaves. Though G. quaesita leaves contain a diverse range of bioactive compounds and antioxidants properties, it is important to choose the correct extraction technique based on the objectives of the desired research work, as the number of phytochemicals extracted, and antioxidant capacity varies depending on the extraction technique used.\u0000Full paper submission of ICIET 2021","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":"96 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83994618","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}

{"title":"Finite Element and Neural Network Based Predictive Model to Determine Natural Frequency of Laminated Composite Plates with Eccentric Cutouts under Free Vibration","authors":"Mohamed Rida Seba, S. Kebdani","doi":"10.46604/aiti.2022.8909","DOIUrl":"https://doi.org/10.46604/aiti.2022.8909","url":null,"abstract":"This research proposes a predictive model to identify changes in the mechanical and geometrical properties of composite plates with eccentric cutouts based on natural frequency. Finite elements (FE) and neural networks are used to develop the model based on machine learning. First, the numerical analysis of free vibration is performed by the FE model on the laminated composite plates with a stacking sequence [0/90]2s under a clamped-free (CFFF) boundary condition. The outputs of the FE model (520 configurations) are then utilized to train the artificial neural network (ANN) model through the Levenberg-Marquardt method, and the developed ANN model is then used to evaluate the influence of various parameters on the natural frequency. The results show that the changes in the mechanical and geometrical properties of composite plates have impacts on the natural frequency. Furthermore, the findings of the ANN model are substantially identical to those of the numerical model, with a small margin of error.","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45871600","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}

{"title":"An Integrated Approach towards Efficient Image Classification Using Deep CNN with Transfer Learning and PCA","authors":"Rahul Sharma, Amar Singh","doi":"10.46604/aiti.2022.8538","DOIUrl":"https://doi.org/10.46604/aiti.2022.8538","url":null,"abstract":"In image processing, developing efficient, automated, and accurate techniques to classify images with varying intensity level, resolution, aspect ratio, orientation, contrast, sharpness, etc. is a challenging task. This study presents an integrated approach for image classification by employing transfer learning for feature selection and using principal component analysis (PCA) for feature reduction. The PCA algorithm is employed for reducing the dimensionality of the features extracted by the VGG16 model to obtain a handful of features for speeding up image reorganization. For multilayer perceptron classifiers, support vector machine (SVM) and random forest (RF) algorithms are used. The performance of the proposed approach is compared with other classifiers. The experimental results establish the supremacy of the VGG16-PCA-Multilayer perceptron model integrated approach and achieve a reorganization accuracy of 91.145%, 95.0%, 92.33%, and 98.59% on Fashion-MNIST dataset, ORL dataset of faces, corn leaf disease dataset, and rice leaf disease datasets, respectively.","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44135708","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}

{"title":"A Novel Ultrasonic Method for Measuring the Position and Velocity of Moving Objects in 3D Space","authors":"N. Thong-un, W. Wongsaroj","doi":"10.46604/aiti.2022.9396","DOIUrl":"https://doi.org/10.46604/aiti.2022.9396","url":null,"abstract":"This study proposes a method for concurrently determining the position and velocity of a moving object in three-dimensional (3D) space using echolocation. A spherical object, i.e., a flying ball, is used to demonstrate the ability of the proposed method. The position of the object is calculated using a time-of-flight (TOF) technique based on a cross-correlation function, which requires less computational time when using one-bit signal technology. The velocity of the object is subsequently computed from the length of chirp signals and the velocity vector measurements between the position of the object and the position of acoustical receivers. The coordinate of the object location is identified by the distance from the sound source to the object, the elevation angle, and the azimuth angle. The validity and repeatability of the experimental results are evaluated by statistical methods, showing ±1% of accuracy. It is concluded that the proposed method can identify the position and velocity of a rigid body in 3D space.","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45372213","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}

{"title":"Theoretical Investigation for the Influence of Various Parameters on the Performance of a Novel Concentration-Based Solar Desalination System","authors":"M. Mohammed, M. T. Janan","doi":"10.46604/aiti.2022.8897","DOIUrl":"https://doi.org/10.46604/aiti.2022.8897","url":null,"abstract":"This study aims to investigate the influence of various parameters on the freshwater yield and efficiency of a novel concentration-based solar desalination system. The system performance under the summer and winter climatic conditions of Rabat city, Morocco is evaluated. The design parameters are glass cover thickness, absorber basin thickness, brackish water mass, and absorber basin material. The climatic parameters are wind velocity, ambient temperature, and solar radiation. Numerical studies on different system parameters are done by examining the effect of system component parameters on the system performance. Through the MATLAB code, the equations for the freshwater yield and efficiency of the new system are constructed and solved. The results show that the system gives the best performance with 6 mm glass cover thickness, 2 mm absorber basin thickness, and 40 kg brackish water mass.","PeriodicalId":52314,"journal":{"name":"Advances in Technology Innovation","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44557185","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}