본문 바로가기
HOME> 저널/프로시딩 > 저널/프로시딩 검색상세

저널/프로시딩 상세정보

권호별목차 / 소장처보기

H : 소장처정보

T : 목차정보

Measurement : journal of the International Measure... 24건

  1. [해외논문]   Editorial Board   SCIE


    Measurement : journal of the International Measurement Confederation v.120 ,pp. ii - ii , 2018 , 0263-2241 ,

    초록

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  2. [해외논문]   The performance evaluation of multi-image 3D reconstruction software with different sensors   SCIE

    Mousavi, V. (Corresponding author.) , Khosravi, M. , Ahmadi, M. , Noori, N. , Haghshenas, S. , Hosseininaveh, A. , Varshosaz, M.
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 1 - 10 , 2018 , 0263-2241 ,

    초록

    Abstract Three dimensional modelling of the objects is one the most discussed issues in Photogrammetry and Computer Vision. One of the factors affecting the accuracy of the obtained model in image-based methods is the software and algorithm to generate the model. Another important factor is the type of imaging sensor. Due to availability of cell phone sensors to the public, popularity of professional sensors and the advent of stereo sensors, a question raised about which imaging sensor can lead to more accurate and complete model. Although many research have been accomplished to identify a suitable software and algorithm to achieve an accurate and complete model, little attention has been paid to the type of imaging sensors and its effects on the quality of the final model. This paper aims to introduce an appropriate combination of a sensor and software to provide an accurate and complete model. To do this, different available software were compared and the most popular ones in each category were chosen. In this test, four small objects with distinct geometric properties were chosen and their accurate models as reliable true data were generated. Images were then captured using Fujifilm Real 3D stereo camera, Apple iPhone 5s and Nikon D3200 professional camera and three dimensional models of the objects were obtained using each of the software. Finally, a comprehensive comparison between the results showed that the best combination of software and sensors for generating three-dimensional models is directly related to the type of imaging sensors, the software and object shape. Generally better quantitative and qualitative results were obtained by using the Nikon D3200 professional camera.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  3. [해외논문]   Investigations of mechanical, thermal and morphological properties of FDM fabricated parts for friction welding applications   SCIE

    Kumar, Ranvijay (Dept. of Production Engineering, Guru Nanak Dev Engineering College, Ludhiana, India ) , Singh, Rupinder (Dept. of Production Engineering, Guru Nanak Dev Engineering College, Ludhiana, India ) , Ahuja, I.P.S. (Dept. of Mech. Engineering, Punjabi University, Patiala, India)
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 11 - 20 , 2018 , 0263-2241 ,

    초록

    Abstract Friction welding is one of the solid state welding techniques, for which the two pieces of thermoplastic materials must be compatible to each other. Friction welding of the two similar thermoplastic is an easy exercise but joining two dissimilar thermoplastic is difficult because of large differences in viscosity, specific density, molecular weight, melting point, crystalline vs. amorphous nature, surface behavior and dynamic-mechanical properties. In last three decades, studies have been reported to perform the friction and friction stir welding of thermoplastics but still the reason for compatibility of thermoplastic is not understood properly. In the present study attempts have been made to perform the compatibility analysis of two dissimilar polymers namely; acrylonitrile butadiene styrene (ABS) and polyamide 6 (PA6) by establishing their melt flow properties after Aluminum (Al) metal powder reinforcement. Twin screw extrusion (TSE) and fused deposition modeling (FDM) technologies were used to fabricate the welding specimen for potential application in maintenance engineering.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  4. [해외논문]   Evaluation of different calibration equations for NTC thermistor applied to high-precision temperature measurement   SCIE

    Liu, Guang (Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China ) , Guo, Liang (Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China ) , Liu, Chunlong (Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China ) , Wu, Qingwen (Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China)
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 21 - 27 , 2018 , 0263-2241 ,

    초록

    Abstract Using a negative temperature coefficient (NTC) thermistor for high-precision temperature measurement can give a resolution and accuracy as low as 5 mK. The performance of an NTC thermistor is affected markedly by its calibration equation. Two series of high precision calibration for NTC thermistors in a precision water bath by means of comparison method were presented. Nine approximate calibration equations for the resistance–temperature characteristics of the MF501 NTC thermistor are evaluated within a temperature range of 278.15–328.15 K. It is confirmed that the fitting quality is influenced greatly by the number of coefficients used in the calibration equation, and that the Hoge-2 equation is the best calibration equation for the MF501 NTC thermistor for high-precision temperature measurements. The combined standard uncertainty of the thermistor calibration system is estimated as 4.31 mK. The calibration procedure and evaluation method proposed can be used for calibration of any types of NTC thermistors.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  5. [해외논문]   Avoiding erroneous analysis of MIM diode current-voltage characteristics through exponential fitting   SCIE

    Pelz, Bradley (Corresponding author.) , Belkadi, Amina , Moddel, Garret
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 28 - 33 , 2018 , 0263-2241 ,

    초록

    Abstract Accurate fitting of measured current-voltage [ I ( V ) ] data is crucial to the correct analysis and understanding of metal-insulator–metal (MIM) diodes, especially for optical rectennas. With the commonly used polynomial fitting of the I ( V ) data, the order of the fit can drastically affect the diode performance metrics such as resistance, responsivity, and asymmetry. Additionally, the resulting fitting coefficients provide no useful parameters. An exponential-based equation can fit the I ( V ) data well, can avoid artifacts from the choice of order of the polynomial, and allows for the accurate calculation of diode performance metrics directly from the fitting coefficients. Connecting the performance metrics to fitting coefficients shows a correspondence between zero-bias responsivity and asymmetry at any given voltage. Highlights Exposes potentially misleading results from polynomial fits of MIM diodes. Proposes more robust fit based on exponentials. Connects alternative fit to diode performance metrics. Provides improved tools for better analysis of MIM diodes for optical rectennas.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  6. [해외논문]   ESMD-based stability analysis in the progressive collapse of a building model: A case study of a reinforced concrete frame-shear wall model   SCIE

    Liu, Xianglei (Key Laboratory for Urban Geomatics of National Administration of Surveying, Mapping and Geoinformation, Beijing Key Laboratory For Architectural Heritage Fine Reconstruction & Health Monitoring, Beijing University of Civil Engineering and Architecture, 1 Zhanlanguan Road, Beijing 100044, PR China ) , Tang, Yi (Key Laboratory for Urban Geomatics of National Administration of Surveying, Mapping and Geoinformation, Beijing Key Laboratory For Architectural Heritage Fine Reconstruction & Health Monitoring, Beijing University of Civil Engineering and Architecture, 1 Zhanlanguan Road, Beijing 100044, PR China ) , Lu, Zhao (Key Laboratory for Urban Geomatics of National Administration of Surveying, Mapping and Geoinformation, Beijing Key Laboratory For Architectural Heritage Fine Reconstruction & Health Monitoring, Beijing University of Civil Engineering and Architecture, 1 Zhanlanguan Road, Beijing 100044, PR China ) , Huang, He (Key Laboratory for Urban Geomatics of National Administration of Surveying, Mapping and Geoinformati) , Tong, Xiaohua , Ma, Jing
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 34 - 42 , 2018 , 0263-2241 ,

    초록

    Abstract Aiming to estimate the degree of damage influences on a building model, this paper proposes to adopt the extreme-point symmetric mode decomposition (ESMD) method to conduct a stability analysis in the progressive collapse of a building model. As a representative case, a five-story reinforced concrete frame-shear wall building model with a destructible glass wall, is studied in detail. The input signals of key locations on the building model are obtained by high-speed videogrammetry (HSV). First, the original complex response signal is decomposed into a series of simple signals called intrinsic mode functions (IMFs) by a mode symmetric about the maxima and minima points. Second, the instantaneous frequency of each IMF is obtained to perform a stability analysis by a direct interpolation (DI) algorithm. Third, instantaneous energy is obtained to conduct a stress analysis for the key locations of the building model. The results demonstrate that the proposed method has an ability to perform a stability analysis in the progressive collapse of a building model efficiently. Highlights Stability analysis for nonstationary signals by the ESMD method is proposed. Instantaneous frequency of each IMF relies on different load-bearing conditions. Stress analysis is performed by instantaneous energy based on time-variation.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  7. [해외논문]   A hybrid approach to multi response optimization of micro milling process parameters using Taguchi method based graph theory and matrix approach (GTMA) and utility concept   SCIE

    Brahmeswara Rao, D. (Dept. of Mechanical Engineering, College of Engineering, JNTUK Kakinada, AP, India ) , Venkata Rao, K. (Dept. of Mechanical Engineering, Vignan's Foundation for Science, Technology and Research, Vadlamudi, AP, India ) , Gopala Krishna, A. (Dept. of Mechanical Engineering, College of Engineering, JNTUK Kakinada, AP, India)
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 43 - 51 , 2018 , 0263-2241 ,

    초록

    Abstract Nowadays, it is required to produce micro products with high dimensional accuracy to use them in different applications like aerospace, electronic and optics. The objective of this study is to investigate influence of process parameters on surface roughness (Ra and Rq), tool wear and cutter vibration in micro milling of AISI304 stainless steel. According to orthogonal array of L27, twenty-seven experiments were conducted on the workpiece with carbide end mill cutter at different levels of spindle speeds, feeds and depth of cuts. A hybrid approach of Taguchi method based graph theory and matrix approach (GTMA) and utility concept was used for multi response optimization of process parameters. The GTMA was used to calculate weightage of four responses as per user’s opinion or preference. The utility concept was used to calculate utility value of four responses using preference scale. Mean utility values of responses are analyzed with Taguchi method and analysis of variance. The optimum process parameters for the minimization responses were found to be 6000 rpm of spindle speed, 95 μm/teeth of feed and 50 μm of depth of cut. The predicted responses at optimal process parameters are Ra = 0.534 μm, VB = 70.861 μm, Amp = 54.395 μm and Rq = 0.894 μm. A confirmation test was also carried out to verify the results. Highlights Graph theory and matrix approach (GTMA) is used to calculate weightage of machining characteristics. Weightage of responses are determined according to users preference. Utility concept is used to calculate utility values of responses for optimization. Process parameters are optimized for surface roughness, tool wear and tool vibration.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  8. [해외논문]   Detection of Power Quality Event using Histogram of Oriented Gradients and Support Vector Machine   SCIE

    Kapoor, Rajiv (ECE Department, Delhi Technological University, India ) , Gupta, Rashmi (ECE Department, AIACT&R, GGSIPU, Delhi, India ) , Son, Le Hoang (Division of Data Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam ) , Jha, Sudan (School of Computer Engineering, Kalinga Institute of Industrial Technology, Odisha, India ) , Kumar, Raghvendra (Computer Science and Engineering Department, LNCT College, MP, India)
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 52 - 75 , 2018 , 0263-2241 ,

    초록

    Abstract This paper proposes a new method to distinguish power quality events based on the Histogram of Oriented Gradients (HOG) and Support Vector Machine (SVM). We examine energy quality events such as sag, interruptions, swell, harmonic, transient, notch and flicker. The proposed method calculates numerous power quality disturbances such as flickering with harmonics, intrusion with harmonics, and sagging with harmonics. It has less processing time than the previous methods due to multiple events occurring at same time. Numerical experiments performed on a real database of power quality disturbances show that there is less calculation in the proposal in comparison with the wavelet change, S-transform and Hilbert change. Recognition with the assistance of HOG gives better and precise outcome in time area with faster reaction.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  9. [해외논문]   Thermally-induced mechanical behaviour of a single proppant under compression: Insights into the long-term integrity of hydraulic fracturing in geothermal reservoirs   SCIE

    Bandara, K.M.A.S. (Department of Civil Engineering, Monash University, Building 60, Melbourne, Victoria 3800, Australia ) , Ranjith, P.G. (Department of Civil Engineering, Monash University, Building 60, Melbourne, Victoria 3800, Australia ) , Rathnaweera, T.D. (Department of Civil Engineering, Monash University, Building 60, Melbourne, Victoria 3800, Australia ) , Perera, M.S.A. (Department of Civil Engineering, Monash University, Building 60, Melbourne, Victoria 3800, Australia ) , Kumari, W.G.P. (Department of Civil Engineering, Monash University, Building 60, Melbourne, Victoria 3800, Australia)
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 76 - 91 , 2018 , 0263-2241 ,

    초록

    Abstract With the increasing demand persisting for energy extraction from geothermal resources, many scientific research studies have been carried out on the performance of proppants to improve the energy extraction process. Knowledge of the after-effects of proppants exposed to realistic geothermal reservoir conditions is crucial. Therefore, the aim of the experimental study reported here was to investigate the mechanical behaviour of a single proppant under incremental loading conditions, and the mineralogical and microstructural alterations due to exposure to elevated temperatures (100 °C, 200 °C, 300 °C and 400 °C) and different cooling conditions (slow cooling and quenching). Significant mechanical weakening, overall strength reduction of 52.19% and 69.74% and Young’s modulus reduction of 43.64% and 55.45% for the slow cooling and quenching cooling techniques were observed in a single proppant when the temperature increased from room temperature (25 °C) to elevated temperatures. Scanning electron microscopy revealed the occurrence of thermal cracks inside the proppant microstructure, together with the alteration of the mineral structure, and significant changes in zeolite, Na-feldspar and K-feldspar were observed upon exposure to elevated temperatures. The post-failure behaviour of a single proppant was studied conducting 3-D X-ray computed tomography (CT) scanning. Under normal loading conditions, proppants cleave and generate large fragments like a flower, and this happens suddenly and quite violently through the material. Interestingly, post-failure analysis revealed that the failure mechanism of a single proppant consists of three major stress levels, where initially proppant fails at a high stress level and gains some crushing-associated strength at later stages. Highlights The effect of temperature on proppant mechanical behaviour was investigated. The different cooling conditions were coupled with the mechanical behaviour. The post-failure of a proppant was analysed. Significant mechanical weakening was observed with increasing temperature. Thermal cracks and the mineralogical alterations seem to be the reason for the weakening process.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지
  10. [해외논문]   Geographical recognition of Syrah wines by combining feature selection with Extreme Learning Machine   SCIE

    da Costa, Nattane Luí (Instituto de Informática, Universidade Federal de Goiás, Goiânia-GO, Brazil ) , za (LADAF –) , Llobodanin, Laura Andrea Garcí (Laboratory of Functional Foods, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes, 580, B14, 05508-900 São Paulo, Brazil ) , a (Instituto de Informática, Universidade Federal de Goiás, Goiânia-GO, Brazil ) , de Lima, Má (LADAF –) , rcio Dias (Laboratory of Functional Foods, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes, 580, B14, 05508-900 São Paulo, Brazil ) , Castro, Inar Alves (Instituto de Informática, Universidade Federal de Goiás, Goiânia-GO, Brazil) , Barbosa, Rommel
    Measurement : journal of the International Measurement Confederation v.120 ,pp. 92 - 99 , 2018 , 0263-2241 ,

    초록

    Abstract Data mining techniques have been used for the classification of many types of products. In order to classify the Syrah wines from Argentina (Mendoza) and Chile (Central Valley), according to their origin, we perform two feature selection methods with the following classification algorithms: Support Vector Machines (SVM), and two types of artificial neural networks, Multilayer Perceptron (MLP) and Extreme Learning Machine (ELM), on 10-fold cross-validation. Each feature selection method has a different approach, creating also different sets of the most important features. The best model was the combination of variables peon-3-glu, malv-3-glu and pet-3-acetylglu, selected by Random Forest Importance, reaching 98.33% accuracy with ELM, outperforming SVM and MLP. The results obtained from the classifiers and feature subsets are able to confirm the importance of the anthocyanins to classify Syrah wines according to their geographic region. ELM was the best algorithm for classifying Syrah wines. Highlights Extreme Learning Machine was used to classify Syrah wines. Classification accuracy of above 98% was obtained. ELM outperformed SVM and MLP.

    원문보기

    원문보기
    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

    Fig. 1 이미지

논문관련 이미지