International journal of engineering. Transactions A: basics最新文献_第8页

Feature Dimension Reduction of Multisensor Data Fusion using Principal Component Fuzzy Analysis 基于主成分模糊分析的多传感器数据融合特征降维

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.06

H. Kashanian, E. Dabaghi

{"title":"Feature Dimension Reduction of Multisensor Data Fusion using Principal Component Fuzzy Analysis","authors":"H. Kashanian, E. Dabaghi","doi":"10.5829/idosi.ije.2017.30.04a.06","DOIUrl":"https://doi.org/10.5829/idosi.ije.2017.30.04a.06","url":null,"abstract":"These days, the most important areas of research in many different applications, with different tools, are focused on how to get awareness. One of the serious applications is the awareness of the behavior and activities of patients. The importance is due to the need of ubiquitous medical care for individuals. That the doctor knows the patient's physical condition, sometimes is very important. Of course, there are other important applications for this information. There are a variety of methods and tools for measurement, gathering, and analysis of the physical behaviors and activities’ information. One of the most successful tools for this aim are ubiquitous intelligent electronic devices, specifically smartphones, and smart watches. There are many sensors in these devices, some of which can be used to understand the activities of daily living. As an output result, these sensors produce many raw data. Thus, it is needed to process these information and recognize the individual behavior of the output of this processing. In this paper, the basic components of the analysis phase for this process have been proposed. Simulations validate the benefits and superiority of this method.","PeriodicalId":416886,"journal":{"name":"International journal of engineering. Transactions A: basics","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115799017","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: 4

Experimental Study of Breaching of an Earthen Dam using a Fuse Plug Model 用熔丝塞模型进行土坝溃坝试验研究

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.04

D. Verma, B. Setia, V. K. Arora

{"title":"Experimental Study of Breaching of an Earthen Dam using a Fuse Plug Model","authors":"D. Verma, B. Setia, V. K. Arora","doi":"10.5829/idosi.ije.2017.30.04a.04","DOIUrl":"https://doi.org/10.5829/idosi.ije.2017.30.04a.04","url":null,"abstract":"Failure of dams due to overtopping is among the most frequent forms of embankment failures. Owing to massive and wide spread damage to structures and loss of lives associated with a dam failure, the subject has drawn the attention of scientists. The study also becomes essential for damage assessment and for development of early warning system of people downstream of the embankment. The rate of breaching of earthen embankments due to overtopping depends upon the soil and flow characteristics alike. Different input parameters that help in understanding the phenomenon are the temporal variation of initiation of the breach, breach width, breach depth, intensity of discharge and its time-to-peak. Present paper gives the results of laboratory investigation conducted using a wooden fuse plug and five different soils. The hydraulic conditions were kept same for all the experiments. It was observed that cohesiveness and degree of compaction were key factors in the erosion process. While for pure non-cohesive soils, surface erosion occurred gradually, but for the cohesive soils, headcut erosion was observed. The behaviour of breach depends upon dimensions of fuse plug, type of fill material, reservoir capacity and inflow. A common equation has been fitted to the series of normalized breach flow hydrographs of different soils. The equation has a coefficient of correlation r2 equal to 0.8 indicating a good fit. Limited space of the storage reservoir on the upstream of the embankment, and width of the flume are the limitations of the study.","PeriodicalId":416886,"journal":{"name":"International journal of engineering. Transactions A: basics","volume":"4 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114027777","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: 7

Synthesis and Characterization of Anatase-coated Multiwall Carbon Nanotube for Improvement of Photocatalytic Activity 锐钛酶包覆多壁碳纳米管的合成与表征及其光催化活性的提高

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.12

F. Kordhaghi, S. Sadrnezhaad

{"title":"Synthesis and Characterization of Anatase-coated Multiwall Carbon Nanotube for Improvement of Photocatalytic Activity","authors":"F. Kordhaghi, S. Sadrnezhaad","doi":"10.5829/idosi.ije.2017.30.04a.12","DOIUrl":"https://doi.org/10.5829/idosi.ije.2017.30.04a.12","url":null,"abstract":"Sol-gel technique was used to coat multiwall carbon nanotubes (MWCNTs) with anatase titania to increasing the surface area and improve the photocatalytic activity of TiO2. Room temperature ballistic conduct of MWCNT combined with semiconducting behavior of anatase brought about a photocatalytic improvement of ~37 % with respect to the highest methyl orange decolorization flair. For characterization and photocatalytic efficiency determination, X-ray diffraction (XRD), field emission (FE) scanning electron microscopy (SEM), x-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (DRS) and ultraviolet visible (UV-vis) spectroscopy were rehearsed. Attachment of anatase nanoparticles onto 30 wt % functionalized CNTs resulted in 99.72% methyl orange decolorization by 160 min irradiation with 8 W ultraviolet lamp. This value was fourfold greater than pure TiO2 nanoparticles and much greater than the values reported in the literature. This improvement was attributed to larger surface area, lower charge recombination and superior crystal structure and stimulated visible-light shifting due to presence of Ti O C bond.","PeriodicalId":416886,"journal":{"name":"International journal of engineering. Transactions A: basics","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123033200","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: 4

A NEW BI-OBJECTIVE MODEL FOR A TWO-ECHELON CAPACITATED VEHICLE ROUTING PROBLEM FOR PERISHABLE PRODUCTS WITH THE ENVIRONMENTAL FACTOR 考虑环境因素的易腐产品两梯队车辆路径问题的双目标模型

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.10

M. Esmaili, R. Sahraeian

{"title":"A NEW BI-OBJECTIVE MODEL FOR A TWO-ECHELON CAPACITATED VEHICLE ROUTING PROBLEM FOR PERISHABLE PRODUCTS WITH THE ENVIRONMENTAL FACTOR","authors":"M. Esmaili, R. Sahraeian","doi":"10.5829/idosi.ije.2017.30.04a.10","DOIUrl":"https://doi.org/10.5829/idosi.ije.2017.30.04a.10","url":null,"abstract":"In multi-echelon distribution strategy freight is delivered to customers via intermediate depots. Rather than using direct shipments, this strategy is an increasingly popular one in urban logistics. This is primarily to alleviate the environmental (e.g., energy usage and congestion) and social (e.g., traffic-related air pollution, accidents and noise) consequences of logistics operations. This paper represents a two-echelon capacitated vehicle routing problem (2-ECVRP) in which customers' satisfaction and environmental issues are considered for perishable goods delivery for the first time. The paper proposes a novel bi-objective model that minimizes: 1) total customers waiting time, and 2) total travel cost. A restriction on maximum allowable carbon dioxide (CO2) emissions from transport in each route is considered as environmental issue in the problem. The proposed model is solved by simple additive weighting (SAW) method. Finally, the proposed model is applied to a real world problem in a supermarket chain. The results achieved by GAMS optimization software confirm the validity and high performance of the model in respect to the importance of the each objective function. Furthermore, the sensitivity analysis performed on the model reveals that less restrictive policies on carbon emissions lead to more total emissions but less total travel cost and customers waiting time.","PeriodicalId":416886,"journal":{"name":"International journal of engineering. Transactions A: basics","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127906428","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: 16

Survival of Lactobacillus Acidophilus as Probiotic Bacteria using Chitosan Nanoparticles 壳聚糖纳米颗粒对嗜酸乳杆菌益生菌存活的影响

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.01

P. Ebrahimnejad, M. Khavarpour, S. Khalili

{"title":"Survival of Lactobacillus Acidophilus as Probiotic Bacteria using Chitosan Nanoparticles","authors":"P. Ebrahimnejad, M. Khavarpour, S. Khalili","doi":"10.5829/idosi.ije.2017.30.04a.01","DOIUrl":"https://doi.org/10.5829/idosi.ije.2017.30.04a.01","url":null,"abstract":"Chitosan was used for nanoencapsulation of Lactobacillus acidophilus as probiotic bacteria. In vitro experiments were done with the objective of investigating the survival of the bacteria cells in gastro-intestinal conditions. The results demonstrated that the size of chitosan nanoparticles noticeably increases by increasing chitosan concentration from 0.05 to 0.5 g/mL. Encapsulation of the cells caused a decrease at the leakage of probiotic bacteria when compared with free bacteria. However, the number of probiotic cells reduced from 3.27 to 3.23 log CFU/ml in gestural acid condition in contrast to free cells which they approximately dropped from 3.3 to 3 log CFU/ml after 120 min. Good probiotic viability and stability was also obtained by nanocapsulation of Lactobacillus acidophilus in intestinal juice. At this condition, the initial capsulated cells numbers were 3.28 log CFU/ml which after placing in biliary salt condition for 120 min, it reached to 3.23 log CFU/ml. On the other hand, the free bacteria cells reduced from 3.3 to 2.97 log CFU/ml in intestinal environment. Overall, nanocapsulation of probiotic bacteria plays a pivotal role in enhancing the viability and survival of them against gastro- intestinal environmental conditions.","PeriodicalId":416886,"journal":{"name":"International journal of engineering. Transactions A: basics","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130176745","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: 33

MINING OVERLAPPING COMMUNITIES IN REAL-WORLD NETWORKS BASED ON EXTENDED MODULARITY GAIN 基于扩展模块化增益的现实网络重叠社区挖掘

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.05

S. Chintalapudi, M. K. Prasad

引用次数: 3

Eco-friendly Self-curing Concrete Incorporated with Polyethylene Glycol as Self-curing Agent (RESEARCH NOTE) 聚乙二醇自养护环保型自养护混凝土(研究说明)

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.03

G. Thrinath, P. Kuma

{"title":"Eco-friendly Self-curing Concrete Incorporated with Polyethylene Glycol as Self-curing Agent (RESEARCH NOTE)","authors":"G. Thrinath, P. Kuma","doi":"10.5829/idosi.ije.2017.30.04a.03","DOIUrl":"https://doi.org/10.5829/idosi.ije.2017.30.04a.03","url":null,"abstract":"Today concrete is most generally utilized development material in the world due to its strength and sturdiness properties. To attain good strength, curing of concrete is important so we introduce the concept of self-curing concrete rather than immersion or sprinkle curing to avoid water scarcity. It was observed that water solvent polymers can be utilized as a self-curing agent, i.e. polyethylene glycol (PEG-400). In the present study, to discover the effect of admixture polyethylene glycol (PEG-400) on compression strength, split tensile strength and flexural strength, adding the diverse rate of PEG-400 to the weight of cement from zero to two percentages as the measurement of the curing agent is done. The test results were studied for M30 concrete mix. The optimum percentage of PEG-400 was found to be 1% for compressive and Split Tensile Strength. If the dosage of PEG-400 increases to more than 1%, there is a decline in compressive and split tensile strength. However, the optimum percentage of PEG-400 for flexural strength was found at 0.5%. If we increase the dosage of PEG-400 more than 0.5%, there is reduction in strength of flexural strength.","PeriodicalId":416886,"journal":{"name":"International journal of engineering. Transactions A: basics","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126172385","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: 6

Computational Fluid Dynamic- Two Fluid Model Study of Gas-Solid Heat Transfer in a Riser with Various Inclination Angles 计算流体力学——不同倾角立管内气固传热的两流体模型研究

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.02

K. Azizi, M. Moraveji

引用次数: 7

Robust Attitude Control of Spacecraft Simulator with External Disturbances 具有外部干扰的航天器模拟器鲁棒姿态控制

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.15

M. Malekzadeh, Bahare Shahbazi

{"title":"Robust Attitude Control of Spacecraft Simulator with External Disturbances","authors":"M. Malekzadeh, Bahare Shahbazi","doi":"10.5829/idosi.ije.2017.30.04a.15","DOIUrl":"https://doi.org/10.5829/idosi.ije.2017.30.04a.15","url":null,"abstract":"The spacecraft simulator robust control through H∞-based linear matrix inequality (LMI) and robust adaptive method is implemented. The spacecraft attitude control subsystem simulator consists of a platform, an air-bearing and a set of four reaction wheels. This set up provides a free real-time three degree of freedom rotation. Spacecraft simulators are applied in upgrading and checking the control algorithms' performance in the real space conditions. The LMI controller is designed, through linearized model. The robust adaptive controller is designed based on nonlinear dynamics in order to overcome a broader range of model uncertainties. The stability of robust adaptive controller is analysed through Lyapunov theorem. Based on these two methods, a series of the laboratory and computer simulation are made. The tests’ results indicate the accuracy and validity of these designed controllers in the experimental tests. It is observed that, these controllers match the computer simulation results. The spacecraft attitude is converged in a limited time. The laboratory test results indicate the controller ability in composed uncertainty conditions (existence of disturbances, uncertainty and sensor noise). doi: 10.5829/idosi.ije.2017.30.04a.15","PeriodicalId":416886,"journal":{"name":"International journal of engineering. Transactions A: basics","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130768318","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: 6

Design and Experimentation of Roll Bond Evaporator for Room Air Conditioner with R-22 as Refrigerant 以R-22为制冷剂的室内空调辊结式蒸发器的设计与试验

International journal of engineering. Transactions A: basics Pub Date : 2017-02-09 DOI: 10.5829/idosi.ije.2017.30.04a.14

P. Ravi, A. Krishnaiah, M. Azizuddin

引用次数: 4