{"title":"Measurement and Feature Analysis of Plantar Pressure Center in Athletes under Different Exercise Modes","authors":"Jie Yang","doi":"10.18280/i2m.190511","DOIUrl":"https://doi.org/10.18280/i2m.190511","url":null,"abstract":"Walking and running, two essential exercises in daily training for athletes, are major causes to foot injuries. The plantar pressure center (PPC) can accurately reflect the gait process, and effectively measure the function of foot. This paper measures the PPC trajectories of a total of 45 athletes during the support period of walking and running, and analyzes their regularities under different exercise modes. The time percentage of PPC trajectory and foot progression angle were selected as the main observation indices. The support period under each exercise mode was divided into four phases: the initial contact phase (ICP), the forefoot contact phase (FFCP), the foot flat phase (FFP), and the forefoot push off phase (FFPOP). The statistical analysis shows that: Under the running mode, the time of the heel landing on the ground and the relative load on the heel decrease with the growing speed. Under the same exercise mode, the left and right feet differ slightly in the PPC trajectory; the foot progression angle peaks in FFPOP and minimizes in FFP. In ICP and FFPOP, the foot progression angle under running is smaller than that under walking; in FFP and FFCP, the foot progression angle under running is larger than that under walking. The research results provide the scientific basis for the reasonable arrangement of athlete training.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"399-403"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42416065","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 of an Automatic Detector for Gas Desorption of Coal Samples","authors":"Tao Li","doi":"10.18280/i2m.190505","DOIUrl":"https://doi.org/10.18280/i2m.190505","url":null,"abstract":"Gas content measurement is a common technique in the prevention of coalmine gas disasters. During the measurement, the gas desorption amount of field coal samples needs to be obtained by an instrument working under the principle of gas collection by water displacement (GCWD). The instrument is poorly automated, and susceptible to the influence of subjective factors. To overcome these defects, this paper designs an automatic detector of gas desorption, aiming to realize automated detection. Firstly, the authors analyzed the gas desorption detection process, and clarified the contents and features of the information to be collected. On this basis, the hardware and software systems of the multi-data automatic detector were developed based on digital circuit design and multi-sensor detection. To further improve the measuring accuracy of gas desorption, the multi-range multi-stage mode was introduced to the automatic detector. Application results show that the proposed detector can automatedly collect and store gas desorption amount, ambient pressure, and temperature, greatly improve the degree of automation, and minimize the influence of subjective factors. The popularization of this detector will make gas desorption measurement more efficient and effective, laying a solid basis for the prevention of coalmine gas disasters.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"355-361"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44896414","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 Reconfigurable Graphene Nanoantenna on Quartz Substrate","authors":"Yanghua Gao, Weidong Lou, Hailiang Lu","doi":"10.18280/i2m.190508","DOIUrl":"https://doi.org/10.18280/i2m.190508","url":null,"abstract":"Received: 1 May 2020 Accepted: 28 August 2020 In the terahertz (THz) band, conventional metallic antennas are virtually infeasible, due to the low mobility of electrons and huge attenuation. The existing metallic THz antennas need a high power to overcome scattering losses, and tend to have a low antenna efficiency. Fortunately, graphene is an excellent choice of miniaturized antenna in millimeter/THz applications, thanks to its unique electronic properties in THz band. Therefore, this paper presents two miniaturized reconfigurable graphene antennas, and characterizes their performance in terms of frequency reconfiguration, omnidirectional radiation pattern, and radiation efficiency. The proposed graphene antennas were printed on a quartz substrate, and simulated on CST Microwave Studio. The results show that the excellence of the proposed antennas in reflection coefficient, dynamic frequency reconfiguration (DFR), and omnidirectional radiation pattern. The operation frequency of the two antennas varies from 0.74 to 1.26 THz and from 0.92 to 1.15 THz, respectively. The proposed antennas have great prospects in wireless communications/sensors.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"379-383"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49459258","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}
A. Srivastava, A. Dubey, Manish Kumar, S. Dwivedi, R. Singh, Sanjay Kumar
{"title":"Measurement of Form Errors and Comparative Cost Analysis for the Component Developed by Metal Printing (DMLS) and Stir Casting","authors":"A. Srivastava, A. Dubey, Manish Kumar, S. Dwivedi, R. Singh, Sanjay Kumar","doi":"10.18280/i2m.190506","DOIUrl":"https://doi.org/10.18280/i2m.190506","url":null,"abstract":"In the continuously changing scenario of manufacturing industries, the demand for rapid production and specific material component is increased day by day. In this context, the additive manufacturing technique proves a suitable option to develop complex geometry shapes with optimized use of the material as well as energy. In this work, an attempt is to develop a 3D physical component of connecting rod by direct metal laser sintering (DMLS) process. The process parameters such as scanning speed 6m/s, laser power 200 W, layer thickness of 25 µm were kept constant. The same geometry component is also produced by a traditional stir casting method to compare the dimensional accuracy and deviations. The CAD model of the connecting rod was prepared by CATIA V6. All the dimensions were measured by a counter measuring machine (CMM). The surface roughness of both the final product was also measured to discuss the surface quality and physical surface defects. In addition to it, a cost analysis of both the process to develop the same component is also discussed. From the result, it is found that the dimensional error for 3D metal printing component is quite low and occurred in the range of 4 % to 7% in XY, YZ radial and circular plane direction compared to stir casting component 4% to 10% in the same planes. The surface roughness value Ra and Rz for the 3D metal printing surface (2.339 and 8.439 µm ) were quite low compared to stir cast surface (4.417 and 13.372 µm). However, the overall cost of 3D metal printing is higher than the stir casting component.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"363-369"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48745761","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":"Software-Fault Mitigation for Derivation of Quality of Services (QoS) in Wireless Sensor Networks (WSN)","authors":"Mufassir Syed, M. Dubey","doi":"10.18280/i2m.190502","DOIUrl":"https://doi.org/10.18280/i2m.190502","url":null,"abstract":"A ‘Wireless Sensor Network’ (WSN) is a network of autonomous sensors spread out in any environment that is required for the surveillance of environment’s physical condition like pressure, temperature, humidity etc. These sensor networks are used in extreme environmental conditions which can lead to their failure and the damage of the entire environment. Thus, fault detection methods are the need of the hour. Fault tolerance, which is considered a challenging task in these networks, is defined as the ability of the system to offer an appropriate level of functionality in the event of failures. In order to provide better QoS, it is essential that faulty nodes should be diagnosed and handled timely without affecting the underlying work of the network. The present study proposed a throughput efficient mechanism in order to improve fault tolerance of the system against software faults. Since the proposed methodology works on the input variables that are collected on real time basis thus adding to its efficiency in fault detection process. The result shows that our proposed work diagnosis different software faults and during fault diagnosis it is able to maintain the desired throughput. The efficiency of the proposed algorithm is achieved by comparing it with the previous algorithms so far present in the literature.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"327-336"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47306202","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}
Sandeep Singh Kharb, R. M. Belokar, S. Kant, M. Sharma
{"title":"Measurement of Handgrip Strength of North Indian Male Farmers and Its Implications in Design of Farm Equipment","authors":"Sandeep Singh Kharb, R. M. Belokar, S. Kant, M. Sharma","doi":"10.18280/i2m.190509","DOIUrl":"https://doi.org/10.18280/i2m.190509","url":null,"abstract":"As a systematic ergonomics improvement process has always been prevailing in mankind to maximize the human performance within its body’s capabilities and limitations, by providing it a safe workplace and equipment. In addition to this custom, a scrutinized effort is made to associate worker's strength with the force/torque required to operate the tool/equipment in agrarian society of Haryana state (i.e. northern part of India). Therefore, an isometric hand grip strength for both hands (dominant and other one) base data of 200 male agricultural workers (age 18-60 years) from five districts has been measured with baseline handgrip dynamometer. However 20-50 years age group are found actively involved in arduous agricultural activities. On summarizing the Statistical information for the age group 20-50 years (173 subjects) such as mean, standard deviation (SD), skewness, kurtosis, 5th and 95th percentiles it has been observed that Dominant handgrip strength (46.14±7.13 kg) is significantly different (p<0.05) from the opposite handgrip strength (44.50±7.48 kg). Further study also reveals that the strength of handgrip declines significantly (p<0.05) with the increasing age.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"385-389"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45115271","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":"Energy-Efficient Heterogeneous Optimization Routing Protocol for Wireless Sensor Network","authors":"Srilakshmi Uppalapati","doi":"10.18280/i2m.190510","DOIUrl":"https://doi.org/10.18280/i2m.190510","url":null,"abstract":"A wide range of applications include in Wireless Sensor Networks (WSNs), and it is being used extensively in data collection specifically to process the mission-critical tasks. The implementation of routing protocols of energy-efficient (EE) is one of the significant challenging jobs of Sensor Networks (MC-SSN) and Mission Critical Sensors. In hierarchical routing protocols, higher EE can reach when compared to the flat routing protocols. The network’s scheduling process doesn’t support enhanced balanced Energy-efficient network-integrated super-heterogeneous (E-BEENISH), which discusses earlier. An Energy. Energy efficient Time scheduling based particle swarm optimization unequal fault tolerance clustering protocol (EE-TDMA-PSO-UFC) is proposed in this paper. Based on the distance parameter, an efficient cluster head (CH) is selected in this protocol. Owing to the unexpected failure of MCH (Master Cluster Head), an additional “CH” is chosen that is termed as Surrogate cluster head (SCH) for the restoration of network’s connectivity in the protocol of PSO-UFC. Based on TDMA (Time Division Multiple Access) protocols, the consumption of Energy. Energy is reduced with the allocation of timeslots during transmission of data. Using the technique of EE-TDMA-PSOUFC, the network’s lifespan improves than CEEC and E-BEENISH protocols according to the assessment of simulation results.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"391-397"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41908727","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}
Bellal Belkacemi, S. Saad, Z. Ghemari, F. Zaamouche, Adel Khazzane
{"title":"Detection of Induction Motor Improper Bearing Lubrication by Discrete Wavelet Transforms (DWT) Decomposition","authors":"Bellal Belkacemi, S. Saad, Z. Ghemari, F. Zaamouche, Adel Khazzane","doi":"10.18280/i2m.190504","DOIUrl":"https://doi.org/10.18280/i2m.190504","url":null,"abstract":"The present paper deals with healthy and improper bearing lubrication signals analysis using Discrete Wavelet Transform (DWT) enhanced by MATLAB/ Wavelets toolbox analysis. The identification of bearing faults from the time or the frequency domain are difficult due to non stationary vibration signal. Therefore, for more accurate faults information and identification of bearing with lubrication defects (improper or absence of lubrication), the DWT is used. The validation of this procedure is conducted by an experimental setup designed for vibration signal acquisition and the complete analysis is finalized by MATLAB/ Wavelets toolbox. The recorded data used for the validation are the signals of healthy and un-lubricated bearing driven at a rotation speed of 1500 rpm by 0.78 KW three phase induction motor. From the obtained results it can be observed that, for medium speeds DWT decomposition enhanced by MATLAB Wavelets Toolbox procedure is efficient for improper lubricated bearing related faults diagnosis and detection.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"347-354"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42509704","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}
Jielong Hu, Wang Pingyi, Jie Zhang, Meili Wang, Chen Yafei, Congcong Zhao
{"title":"Measurement and Characteristic Analysis of Turbulent Flow near Permeable Spur Dike","authors":"Jielong Hu, Wang Pingyi, Jie Zhang, Meili Wang, Chen Yafei, Congcong Zhao","doi":"10.18280/i2m.190503","DOIUrl":"https://doi.org/10.18280/i2m.190503","url":null,"abstract":"Received: 7 June 2020 Accepted: 21 August 2020 To disclose the turbulence features near a permeable spur dike, this paper measures the three-dimensional (3D) instantaneous velocity at different vertical lines and depths around the permeable spur dike through acoustic Doppler velocimetry (ADV). The relative turbulence intensity and Reynolds stress were calculated for each measuring point, and the distribution features of different turbulence structures were analyzed along the water depth. Experimental results show that: within the length of the dike, the turbulence intensity and Reynolds stress in the downstream of the dike are much greater than those in the upstream. In the downstream of the dike, the turbulence intensity in the root and body regions peaks in the dike crest layer, but that at other positions minimizes in that layer (but peaks on the water surface or river bottom). In the upstream, ejection and sweeping are the dominant turbulence structures; the two structures also dominate near the free layer at the bottom in the downstream; outward and inward interactions dominate near the dike crest layer in the downstream.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":"19 1","pages":"337-345"},"PeriodicalIF":0.0,"publicationDate":"2020-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44154910","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}
Tudor Goldan, Catalin Marian Nistor, Aronel Matei, Dimian Maru
{"title":"Ograniczanie degradacji środowiska spowodowanej działalnością wydobywczą węgla odkrywkowego","authors":"Tudor Goldan, Catalin Marian Nistor, Aronel Matei, Dimian Maru","doi":"10.29227/im-2020-01-36","DOIUrl":"https://doi.org/10.29227/im-2020-01-36","url":null,"abstract":"W wyniku wydobycia wyróżnia się wiele rodzajów zmian: degradacja gruntów i roślinności, zmiana naturalnej topografii, co powoduje ograniczenia możliwości wykorzystania gruntów do innych celów, modyfikację bilansu i jakości wód powierzchniowych i gruntowych, zmiany jakość powietrza i wreszcie zmiany warunków geotechnicznych.Oddziaływanie różni się w zależności od lokalnych warunków miejsca wydobycia. Większość metod eksploatacji odkrywkowej odbywa się na dużą skalę, polega na usuwaniu ogromnych ilości materiału, w tym nadkładu, w celu wydobycia surowca mineralnego.Ponieważ materiały składowane na składowiskach odpadów są niejednorodne pod względem właściwości fizyczno-chemicznych i sąniezwykle zróżnicowane pod względem składu mineralogicznego (piasek, żwir, glina, margiel), z czasem pojawiło się wiele niestabilności. Eksploatacja odkrywkowa może również powodować hałas i zakłócenia oraz może generować zanieczyszczenie powietrzapyłem.","PeriodicalId":79497,"journal":{"name":"Immunotechnology : an international journal of immunological engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42721683","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}