2021 From Innovation To Impact (FITI)最新文献

The Interplay Between Spatial Quality and Operational Energy Dimension in Architecture: Appraising Architects’ Understanding 建筑空间质量与操作能量维度的相互作用:评价建筑师的理解

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833058

Asiri Panditha, U. Rajapaksha

{"title":"The Interplay Between Spatial Quality and Operational Energy Dimension in Architecture: Appraising Architects’ Understanding","authors":"Asiri Panditha, U. Rajapaksha","doi":"10.1109/fiti54902.2021.9833058","DOIUrl":"https://doi.org/10.1109/fiti54902.2021.9833058","url":null,"abstract":"With spatial quality as an integral part of the intangible experience of architecture, and energy-efficient building operations as an emerging trend, there is a conflict about how far the current state of energy-efficient building operations is reaching the plateau of enhancing its spatial quality of architecture. It is largely debated around the world yet hardly touched upon in academia. Accordingly, this study explores the architects’ perception of including spatial quality of architecture in the scope of energy-efficient building operations as a critical interplay between the two. The study employs a questionnaire survey to investigate architects' general understanding of the inherent harmonization between the spatial quality of architecture and its operational energy dimension, which is achieved by prioritizing a building's plan, section, and envelope (materiality) as major drivers to address climatic issues. The findings suggest that the current practice of energy-efficient architecture in the local context has been falsified due to architects' lack of fundamental understanding. Furthermore, these findings pinpoint where architects' perceptions need to be reformed, and thus seek to factor in potential recommendations to overcome the challenges in enhancing the spatial quality of architecture through energy-efficient building operations.","PeriodicalId":201458,"journal":{"name":"2021 From Innovation To Impact (FITI)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116994653","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

Effect of Low-Pressure Cold Plasma Treatment on Microbiological and Physicochemical Properties of Black Peppercorns 低压冷等离子体处理对黑胡椒微生物学和理化性质的影响

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833050

G. De Silva, Samith Amarasena, Neville Amunugoda, S. Gunawardena, A. D. de Alwis

{"title":"Effect of Low-Pressure Cold Plasma Treatment on Microbiological and Physicochemical Properties of Black Peppercorns","authors":"G. De Silva, Samith Amarasena, Neville Amunugoda, S. Gunawardena, A. D. de Alwis","doi":"10.1109/fiti54902.2021.9833050","DOIUrl":"https://doi.org/10.1109/fiti54902.2021.9833050","url":null,"abstract":"Spices contaminated with microorganisms can cause food spoilage and food borne diseases. Cold plasma is an emerging nonthermal sterilization method that can be used in place of wet or dry heat sterilization. This study was carried out to evaluate the efficacy of Low-Pressure Cold Plasma (LPCP) as a sterilization method and the potential changes in quality of black peppercorns after the treatment. LPCP (300 W, 30-liter, 0.3 mbar, 13.56 MHz) generated from oxygen fed at 2 cm3/s was used to treat commercially available peppercorns for 10 and 20 min at 150 and 250 W. Log reduction in Aerobic Plate Count and Yeasts & Moulds Count after treatment were 0.88 and 3.66, respectively. Water activity of peppercorn was significantly reduced due to treatment. The highest level of decontamination was observed at 250 W for 20 min; however, there was no change in the quality of volatile oils in black peppercorn. SEM images confirmed modifications of the surface of peppercorns and ATR-FTIR spectra confirmed there were no chemical changes in the functional groups on the surface of peppercorns with respect to piperine content. This study shows the potential in reducing natural fungal counts of black peppercorns using LPCP with minimum adverse effects to its quality.","PeriodicalId":201458,"journal":{"name":"2021 From Innovation To Impact (FITI)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134245630","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

CNN Based Severity Prediction of Bug Reports 基于CNN的漏洞报告严重性预测

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833043

R. Rathnayake, B. Kumara, E. Ekanayake

{"title":"CNN Based Severity Prediction of Bug Reports","authors":"R. Rathnayake, B. Kumara, E. Ekanayake","doi":"10.1109/fiti54902.2021.9833043","DOIUrl":"https://doi.org/10.1109/fiti54902.2021.9833043","url":null,"abstract":"Users can use bug tracking systems (BTS) such as Bugzilla, JIRA, and GitHub to report defects they detect while using or testing the software applications. Bugzilla has specified the bug’s information such as bug ID, description, product, classification, component, platform, operating system, bug status, resolution, priority, and severity. The severity assigned to the bug report is conducted manually. So, it takes some considerable time to assign the severity manually, and also it is a tedious task. In this research, we used a deep learning-based technique to develop the prediction model for severity. Our proposed approach is based on the convolutional neural network (CNN) for severity prediction of the bug reports. First, we pre-process the textual content in bug reports using natural language processing (NLP) approaches. Then we extract the features from the textual context (short description) using the Bag-of-Words feature extraction method. Finally, we train a CNN-based classifier to severity prediction based on its input. Then our result is compared with the Support Vector Machine (SVM) and Temporal Convolutional Network (TCN) to find a better model for severity prediction. The final results show that the proposed approach based on the CNN classifier performs better than the other approaches, and it shows an 81% accuracy while others have low accuracy, like 61% and 48% for SVM and TCN, respectively. The proposed model’s performance was evaluated using the Bugzilla dataset, which included over 25,000 bug reports. The accuracy, precision, recall, and F1-Score are used to measure the performance.","PeriodicalId":201458,"journal":{"name":"2021 From Innovation To Impact (FITI)","volume":"229 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114426701","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: 1

Development of Green Seaweed (Ulva fasciata) Incorporated String Hoppers as a Functional Food 绿海藻(Ulva fasciata)含串串跳虫的功能性食品开发

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833053

Malsha Fernando, I. Wijesekara

{"title":"Development of Green Seaweed (Ulva fasciata) Incorporated String Hoppers as a Functional Food","authors":"Malsha Fernando, I. Wijesekara","doi":"10.1109/fiti54902.2021.9833053","DOIUrl":"https://doi.org/10.1109/fiti54902.2021.9833053","url":null,"abstract":"Seaweeds are rich sources of nutrients that contain high levels of proteins, fiber, and bioactive compounds. Due to the unawareness of seaweed consumption, they are still an underutilized food resource in Sri Lanka. The objective of this study was to assess the nutritional composition of locally available green seaweed (Ulva fasciata) and its potential to be used as a functional food ingredient to improve the nutritional properties of string hoppers. In this study, string hoppers were prepared by substituting rice flour with 0%, 2.5%, 5%, and 10% (w/w) Ulva fasciata powder. A sensory evaluation was carried out to select the best-accepted combination; 2.5% (w/w) Ulva fasciata incorporated string hoppers were scored as the best according to the sensory evaluation. Therefore, proximate and phytochemical studies were performed for the 2.5% (w/w) Ulva fasciata added string hoppers and a control sample. The proximate analysis revealed that the 2.5% (w/w) Ulva fasciata powder incorporated string hoppers had a high percentage of total ash (1.73 ± 0.11%), crude protein (9.85 ± 0.17%), soluble protein (2.62 ± 0.24%), and total fiber (21.46 ± 0.97%) as well as a reduced amount of total carbohydrate (46.37 ± 0.31%) and crude lipid content (0.49 ± 0.06%). The total phenolic and total flavonoid content detected from the 2.5% (w/w) Ulva fasciata incorporated string hoppers were 0.68 ± 0.10 μg GAE/ mgml-1 and 0.12 ± 0.02 μg QE/ mgml-1, respectively. Collectively, this study suggested that Ulva fasciata is a potential source of protein and fiber to improve the nutritional value of foods.","PeriodicalId":201458,"journal":{"name":"2021 From Innovation To Impact (FITI)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126133810","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

Characterization of Gas Diffusion Layers for Electrochemical Reduction of CO2 电化学还原CO2气体扩散层的表征

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833067

R. Jayarathne, A. Nihmiya, A. Nilmini, P. Pitigala

引用次数: 1

Design and Implementation of an Automated Multi-Purpose Filling and Capping Machine 多功能自动灌装旋盖机的设计与实现

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833035

R. Koggalage, Anjana Wijesinghe, H. Caldera, R. R. Samarawickrama

{"title":"Design and Implementation of an Automated Multi-Purpose Filling and Capping Machine","authors":"R. Koggalage, Anjana Wijesinghe, H. Caldera, R. R. Samarawickrama","doi":"10.1109/fiti54902.2021.9833035","DOIUrl":"https://doi.org/10.1109/fiti54902.2021.9833035","url":null,"abstract":"In the beverage industry, bottle filling and fixing bottle caps are considered the most time-consuming and important tasks to maintain the quality of the final product. By using an automatic machine, the quality and the production quantity can be improved and in turn, the profits can be increased. But the automatic filling machine that is available in the market is complicated to maintain due to the installation of pneumatic actuators and controllers that need a pneumatic system to operate. This machine has been designed to overcome such complexities by replacing the pneumatic system with a novel design, which would not only overcome the above problems but also will be easier to install and maintain. The proposed automated multipurpose filling and capping machine mainly focuses on small-scale industries which have financial difficulties. Therefore, the main aim of this research project is to develop and implement a cost-effective automated filling and capping machine without pneumatic systems as a solution to overcome the above issues. The implemented simplified automatic liquid filling and capping machine is developed in such a way to be lower in price compared to the other filling machines in the market. This machine is fully electric-powered and sensors are used to automate the process properly. The machine is designed using gear motors as well as solenoids to perform the task while in operation. It has a simple and user-friendly interface, so that only simple steps need be followed to operate the machine. The machine controller is also portable and can be attached to a conveyor system to automate the whole production line","PeriodicalId":201458,"journal":{"name":"2021 From Innovation To Impact (FITI)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125033943","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: 1

Quality of Life of Elderly Living in Cities: Investigating the Social Responsiveness Attributes of a Middle-Income Settlement in Colombo District 城市老年人生活质量:科伦坡地区中等收入住区社会反应属性调查

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833046

N. Jayaratne, I. Rajapaksha

{"title":"Quality of Life of Elderly Living in Cities: Investigating the Social Responsiveness Attributes of a Middle-Income Settlement in Colombo District","authors":"N. Jayaratne, I. Rajapaksha","doi":"10.1109/fiti54902.2021.9833046","DOIUrl":"https://doi.org/10.1109/fiti54902.2021.9833046","url":null,"abstract":"Urbanization and population aging are two key phenomena for elders living in cities of low- and middle-income countries. Quality of life (QoL) of elders is significant to ensure healthy aging. The majority of studies on QoL of elders in Sri Lanka, have prioritized elders’ health and less interest has been evident in their living environments. Thus, the study investigates social responsiveness attributes of the places of aging in achieving quality-of-life of the elderly. The selected case study is a high-density, middle-income settlement in Colombo. A questionnaire survey was conducted among 37 randomly selected respondents aged over 60 years. Axial map and frequency analysis were performed on the survey data. The results explicitly indicate the adverse impact on the health and social relationships of the elderly in the middle-income settlement. Findings of the study inform three major quality of life measures of elders, such as state of safety (20.2%), support (18.7%), and neighborhood setting (13.9%). Furthermore, loneliness and lack of freedom are associated with the prominent health-related concerns of elders. Thus, the attributes identified have far-reaching design implications on the creation of an inclusive urban living environment for the elderly. Moreover, these attributes could facilitate the decision-making process of age-friendly cities. This will eventually influence the national health budget in future, since Sri Lanka represents the highest aging population in South Asia.","PeriodicalId":201458,"journal":{"name":"2021 From Innovation To Impact (FITI)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130981207","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

A Systematic Literature Review on Online Exams in COVID-19 Pandemic: Assessment Methods, Students' Preferences, Dishonest Behaviors and Challenges in Online Exams 关于新冠肺炎疫情下网络考试的系统文献综述:评估方法、学生偏好、网络考试中的不诚实行为和挑战

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833059

D. Dayananda, S. Vasanthapriyan, K. Chathumini, M. Fernando

{"title":"A Systematic Literature Review on Online Exams in COVID-19 Pandemic: Assessment Methods, Students' Preferences, Dishonest Behaviors and Challenges in Online Exams","authors":"D. Dayananda, S. Vasanthapriyan, K. Chathumini, M. Fernando","doi":"10.1109/fiti54902.2021.9833059","DOIUrl":"https://doi.org/10.1109/fiti54902.2021.9833059","url":null,"abstract":"The devastating impacts of Coronavirus disease 2019 (COVID-19) have converted higher education around the world into online education. Online exams can be recognized as the best alternative approach for evaluating students’ performance as part of this online education. Online exams are not an extremely novel experience to the modern world since they were implemented a few decades back. However, there are loopholes in online assessment methods, issues related to students’ preferences as well as challenges with ensuring academic integrity in online exams. This study provides a systematic review of online exams through a detailed investigation. This study explores online assessment methods that best fit to evaluate students’ performance in online education. The factors impacting students’ preferences on online exams are identified and explored. The study examines the possible attempts among the students that violate academic integrity in online assessments, and reveals common online dishonest behaviors and cheating practices among the students. Also, possible countermeasures to detect academic dishonest behavior are identified. Furthermore, the study investigates the emerging challenges in online exams which can arise in online exam design and implementation stages. Secure methods for conducting trustworthy online exams are discussed with a detailed exploration. Overall findings of this study exhibit the best approaches for conducting student evaluations in the online mode, that provide alternative solutions to cope with challenges from COVID-19 towards the continual performance of higher education around the world.","PeriodicalId":201458,"journal":{"name":"2021 From Innovation To Impact (FITI)","volume":"342 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125802112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Long wave antenna design for CALLISTO System CALLISTO系统的长波天线设计

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833069

Supun Liyanaarachchi, J. Adassuriya, K. Jayaratne

{"title":"Long wave antenna design for CALLISTO System","authors":"Supun Liyanaarachchi, J. Adassuriya, K. Jayaratne","doi":"10.1109/fiti54902.2021.9833069","DOIUrl":"https://doi.org/10.1109/fiti54902.2021.9833069","url":null,"abstract":"Life on the surface of the earth is highly affected by solar activities. The real time observations of these solar activities are highly important to minimize the effect on the earth system. Solar radio observations are relevant to the study of such phenomena. The Compound Astronomical Low-frequency Low-cost Instrument for Spectroscopy and Transportable Observatory (CALLISTO) system is one method to study the solar radio bursts. This paper highlights a new study leading to the development of a long wave antenna (LWA) design, which is proposed for a new CALLISTO station. Generally, the solar radio bursts are circularly polarized and more often observed in low regions of the high frequency (HF) and very high frequency (VHF) bands. Therefore, the antenna is designed for the frequency range of 20 MHz to 100 MHz. The designing of the antenna was done using 4nec2 software, a Numerical Electromagnetics Code (NEC) based antenna modeller and an optimizer. The main structure of the design contains two identical antennas in both north-south and east-west directions. The performance of the design was tested by changing the dimensions and simulating the model to optimize the parameters. Considerable performance increases could be observed by applying the ground plane to the antenna model. The resulting performance by simulation shows average gain test (AGT) values of 1.923 at 15 MHz, 2.001 at 30 MHz, 2.021 at 50 MHz, 2.056 at 70 MHz and 2.096 at 100 MHz. The 1.90 - 2.10 AGT range ensures the model is perfect with the input parameters for the physical production. The maximum gain was obtained as 9.12 dB at 50 MHz and in the frequency range considered, this design could maintain a gain higher than 7 dB. The other important performance factors, voltage standing wave ratio (VSWR), structure loss, efficiency, left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP) gain, etc. are also observed. From the simulations, it was observed that LHCP gain is always dominating total gain.","PeriodicalId":201458,"journal":{"name":"2021 From Innovation To Impact (FITI)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127025311","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

A Low Cost Yagi Log-periodic Antenna for 4G/LTE 用于4G/LTE的低成本八木对数周期天线

2021 From Innovation To Impact (FITI) Pub Date : 2021-12-08 DOI: 10.1109/fiti54902.2021.9833045

A. Gunawardena, D. Uduwawala, Anil Pradeep Kumara, Assajie Bandara

引用次数: 0