Journal of Innovations in Engineering Education最新文献

{"title":"Design of wireless device to measure plantar pressure and gait analysis","authors":"Mahendra Khatri, Sambardhan Dabadi, Sandeep Kumar Shrestha, Saugat Acharya, Sudip Tamang, Swornima Shakya","doi":"10.3126/jiee.v2i1.36669","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36669","url":null,"abstract":"Foot plantar pressure is the pressure field that acts between the plantar region of the foot and supporting ground. The pressure exerted on the variable region of the foot can be determined using discrete pressure sensors. Information obtained from these sensors is useful in the measurement of gait and posture for diagnosing various problems associated with a lower limb, footwear design, and sports biomechanics.\u0000This project is aimed to design a portable in-shoe plantar pressure and gyroscope-based gait angle measurement system. Six Force Sensitive Resistor (FSR) placed in the sole (hallux, 1st, 5th metatarsal, midfoot lateral, midfoot medial and heel respectively) detects the plantar pressure and gyroscope placed at the ankle, knee and hip help measure the orientation and angle of joint movement during various phases of gait. The study among 16 male and 16 female subjects illustrated the significant pressure variation (p<0.0001, t=5.17 with α=95%). Similarly, there was a significant difference in pressure between normal and fast walking speed (p<0.0001, t=5.88) with mean values of 353Kpa and 426Kpa respectively. The mean pressure value for slow walking speed was 423Kpa while there was no significant variation between slow and normal walking speeds (p=0.62, t=1.98). Plantar pressure increased linearly with an increase in the body weight of a person as well. The mean pressure for the 45-50 age group was 313.25Kpa and that for 70-75 was 449Kpa. The study among 10 diabetics and 10 non-diabetic subjects illustrated significantly higher pressure on 1st and 5th metatarsal on diabetic subjects (p=0.0207 and t=2.536).\u0000The movement of ankle, knee and hip joint is visualized using the 3D model of a lower limb through processing software. The study illustrated the range of ankle joint movement between -60(dorsiflexion) to 200(plantarflexion), for knee joint was 00 to 300 (flexion) and that for hip joint was -50(extension) to 400(flexion). There was a significant difference in angular values for all three joints while climbing up and down the staircase as compared to walk in a level surface.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"31 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113937096","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":"Porous metal oxide-carbon composite with hollow structure for energy storage applications","authors":"S. Adhikari","doi":"10.3126/jiee.v2i1.36678","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36678","url":null,"abstract":"Nanocomposite structure of porous hollow TiO2 nanofibers (NFs) and graphitic carbon nitride (g-C3N4) sheets were directly fabricated by means of a novel electrospinning combined with calcination process. Owing to the high porosity, these nanostructured demonstrate enhanced energy storage properties when used in supercapacitors (SCs). Nanomaterials in particular offer unique properties or combinations of properties as electrodes and electrolytes in a range of energy devices. The energy storage behavior of electrochemical capacitors (ECs) made from TiO2/g-C3N4 nanocomposites was investigated by cyclic voltammetry and electrochemical impedance spectra. These tests showed that the supercapacitive performance of g-C3N4 was significantly enhanced after attaching porous TiO2 nanofibers.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131486356","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":"Probabilistic seismic hazard analysis of Nepal","authors":"Sunita Ghimire","doi":"10.3126/jiee.v2i1.36676","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36676","url":null,"abstract":"Probabilistic seismic hazard analysis for Nepal has been carried out considering uniform density model. A detailed earthquake catalogue since 1255 A.D, within the rectangular area has been developed and historical earthquakes are plotted in the map of Nepal. Five hundred twenty eight numbers of areal sources are used within the study area to characterize the seismic sources. The completeness of the data has been checked by using Stepp's procedure. Seismicity in four regions of study area has been evaluated by defining 'a' and 'b' parameters of Gutenberg Richter recurrence relationship. Seismic hazard curve of Nepal for soft subsoil condition for 10% probability of exceedence in 50 years period i.e. for return period of 475 years has been plotted.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133712096","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":"Image based flower species classification using CNN","authors":"Santosh Giri","doi":"10.3126/jiee.v2i1.36670","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36670","url":null,"abstract":"Deep learning is one of the essential parts of machine learning. Applications such as image classification, text recognition, object detection etc. used deep learning architectures. In this paper neural network model was designed for image classification. A NN classifier with one fully connected layer and one softmax layer was designed and feature extraction part of inception v3 model was reused to calculate the feature value of each images. And by using these feature values the NN classifier was trained. By adopting transfer learning mechanism NN classifier was trained with 17 classes of oxford 17 flower image dataset. The system provided final training accuracy of 99 %. After training, system was evaluated with testing dataset images. The mean testing accuracy was 86.4%.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123974984","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":"Performance analysis of hybrid cryptosystem - A technique for better security using blowfish and RSA","authors":"Suresh Timilsina, Sarmila Gautam","doi":"10.3126/jiee.v2i1.36677","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36677","url":null,"abstract":"Security is the most concerned topic in this today’s world of Information and Communication Technology. Single layer security can be breached easily so hybrid cryptographic system has been introduced. Hybrid system can be made by combining two or more algorithms of similar or dissimilar types. Here, combing of Blowfish algorithm along with RSA algorithm is performed. After combination their performance analysis is done based on five parameters namely Throughput, Encryption time, Decryption time, Total Execution time and Plain text size to cipher text size ratio with different key size of Blowfish algorithm ranging from 32 bit-448 bit. Among these 5 different hybrid cryptosystem we found that the Blowfish RSA system with key size 448 bit has better performance than all other bit size.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123343727","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":"Soil-pile-structure interaction effects on high-rise building under seismic shaking","authors":"Umesh Thapa, R. Karki","doi":"10.3126/jiee.v2i1.36672","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36672","url":null,"abstract":"In this paper, study of the response (base shear, time period, storey drift, storey displacement) of a structure is done for the tall building including basement with fixed base and with pile foundation considering Soil Structure Interaction (SSI). Finite element based program ETABS2016 v16.1.0 is used for the analysis of the superstructure. Seismic analysis is done to get the dynamic response of superstructure for two types of model,one model is with fixed baseand second is Model with Winkler spring for Chhaya Center, Thamel, a high rise building with 14 story including double basements. Itisobserved with the consideration of Soil Structure Interaction (SSI). The soil is replaced by spring and assigned at joints. El Centro earthquake (1940) is used for time history analysis. The response obtained due to SSI effect is compared with fixed based model. Results of analysis presented include the comparison of natural periods, base shears, displacements and overturning moment. It is observed that the natural periods increase and the base shears decrease as the base become more flexible.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122298270","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":"Design, fabrication and testing of hydro turbine with composite path runner for ultra-low head application","authors":"R. Chaulagain, Dhiraj Pokhrel, Kaurab Gautam, N. Khanal, H. Bhatt","doi":"10.3126/jiee.v2i1.36666","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36666","url":null,"abstract":"This paper is focused on design a turbine with composite path runner for ultra low head application and finally analyze its performance under different test conditions. Literature review was the starting point of research and detailed design parameters for the turbine dimensions and materials were selected taking feasibility of fabrication and testing in hand. The testing was proposed on real site of Bagmati river at Kupandole, Lalitpur, Nepal where the turbine was subjected to fuse reeflowing water from the head of 1.3m and flowrate of 78 LPS that taken as site parameter. The 3D model for the turbine was developed in CATIA. For turbine height of 0.77m and runner minor diameter of 0.152m, simulations were carried out to find the most feasible number of blades, blade width, blade spacing, number of guide vanes and guide vane spacing using ANSYS simulation. Among the simulation the best arrangement was blade radial width of 62 mm, blade spacing of 54mm, guide vane spacing of 36.5 mm, total number of blades 25 and total number of guide vanes 7 keeping output power in mind. The experimental results were then compared with the data obtained from calculations and simulations. Turbine at part load of Qo/Qmax = 0.67 was tested and the resulting maximum efficiency was 21.1% at 87 RPM with available flow rate of 52 LPS.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123861023","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":"School of Nepalese Architecture","authors":"Shree Hari Thapa","doi":"10.3126/jiee.v2i1.36674","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36674","url":null,"abstract":"Architecture is an art of creation for the shelter of human beings. The shelter is called a secured place by the fierce animals, natural calamity, and with complete privacy. The school of architecture is distinguished in its use of construction material, skill, techniques, technology, form including the aspiration of the human being on the geographical strata. The technology and tradition of the construction of a building with certain forms and pattern are influenced by the climate, time, situation, and native construction material. Similarly, the migrants, traders, pilgrimage and travelers had transferred knowledge of tradition and technology with the principle of design philosophy from one place to another. The local or indigenous peoples, who lived or inhabit in the region with climate and geological strata, house form and pattern is varied due to the availability of indigenous construction material. The settlement pattern and the design philosophy of the houses in Nepal are geographically divided into three different regions due to its distinctive ways of construction.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130143799","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":"The impact of shear wall location on the seismic response of RC frame buildings resting on sloping ground","authors":"Upama Acharya, J. Shrestha","doi":"10.3126/jiee.v2i1.36665","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36665","url":null,"abstract":"It is observed during the past earthquakes, buildings in hilly regions have experienced high degree of damage leading to collapse though they have been designed for safety of the occupants against natural hazards. Hence, while adopting practice of multistory buildings in these hilly and seismically active areas, utmost care should be taken for making these buildings earthquake resistant. For the buildings on sloping ground, the height of columns below plinth level is not same which affects the performance of building during earthquake. Hence to improve the seismic performance of building shear walls play very important role.It is very necessary to determine the most effective location of shear walls. Shear wall arrangement must be accurate, because if not, it will cause negative effect instead. This paper is aimed at predicting the effect of positioning RC shear wall of different shape on the structural response of RC building resting on sloping ground. Eight models have been prepared considering earth pressure and without considering earth pressure. The displacement of building is to be determined by nonlinear static pushover analysis. For the purpose of pushover analysis and response spectrum analysis finite element-based software SAP 2000 has been utilized.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123784820","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":"Study of small signal stability using PSAT including DFIG based wind penetration","authors":"R. Pandey","doi":"10.3126/jiee.v2i1.36667","DOIUrl":"https://doi.org/10.3126/jiee.v2i1.36667","url":null,"abstract":"In early days of power engineering, the power system consisting of synchronous generators faced different low frequency oscillation problems and they were solved by different researchers by using suitably AVR and PSS. Later, the electricity industry is turning increasingly to renewable sources of energy to generate electricity. Wind is the fastest growing and the most widely utilized emerging renewable energy technology for power generation at present. With the increasing penetration of wind power in the power system, the impact in power system performance should be fully investigated, particularly for doubly fed induction generation (DFIG) wind turbine since this type of renewable source is gaining prominence in the power system industry. Main purpose of this study is to examine the impacts of wind power integration in the low grid from low frequency oscillation perspective. The benchmarked Two Area System is considered for this analysis using Power System Analysis Toolbox (PSAT). The critical modes of oscillation are selected from eigenvalue analysis and their participation factors are studied to identify their sensitivity. Also the time domain analysis is run in every cases to study the transient stability. From TAS, concept of local and global mode oscillation can be understood clearly. Replacing synchronous generators in TAS by DFIG WTG one by one of same rating gave conclusion that low frequency stability depends on the location of DFIG penetration and operating scenario. The results show that there is both beneficial and detrimental effects due to DFIG WTGs. The installation of PSS in the critical generators greatly enhances the system damping.","PeriodicalId":263238,"journal":{"name":"Journal of Innovations in Engineering Education","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116898352","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}