Estimation of the sample position is essential for working process monitoring and management in the life science automation laboratory.Bluetooth low-energy(BLE)beacons have the advantages of low price,small size and l...Estimation of the sample position is essential for working process monitoring and management in the life science automation laboratory.Bluetooth low-energy(BLE)beacons have the advantages of low price,small size and low energy consumption,which make them a promising solution for sample position estimation in the automated laboratory.Several fingerprinting models have been proposed to achieve indoor localization with the received signal strength(RSS)data.However,most of the research depends on intensive beacon installation.Proximity estimation,which depends entirely on one beacon,is more suitable for sample position estimation in large automated laboratories.The complexity of the life science automation laboratory environment brings challenges to the traditional path loss model(PLM),which is a widely used radio wave propagation model-based proximity estimation method.In this paper,BLE sensing devices for sample position estimation are proposed.The BLE beacon-based proximity estimation is discussed in the framework of machine learning,in which the support vector regression(SVR)is utilized to model the nonlinear relationship between the RSS data and distance,and the Kalman filter is utilized to decrease the RSS data deviation.The experimental results over different environments indicate that the SVR outperforms the PLM significantly,and provides 1 m absolute errors for more than 95%of the testing samples.The Kalman filter brings benefits to stable distance predictions.Apart from proximity-based sample position estimation,the proposed framework turned out to be effective in position estimation between parallel workbenches and position estimation on an automated workstation.展开更多
Introduction: gait analysis of a subject with total hip replacement is described. Objective: instrumental gait analysis of a subject 12 years after the total hip arthroplasty. Materials and Methods: in a movement anal...Introduction: gait analysis of a subject with total hip replacement is described. Objective: instrumental gait analysis of a subject 12 years after the total hip arthroplasty. Materials and Methods: in a movement analysis laboratory, locomotion studies were carried out at freely chosen walking speed by a 64-year-old subject, obtaining kinematic, kinetic and surface electromyographic data in time and space. All measurements were assessments by applying walking protocols on a straight surface of 8 m long. Results: abnormal slight activations of semitendinosus and tibialis anterior muscles, of the left limb, were observed throughout the gait cycle, no spatiotemporal parameters far from normal values were detected. Conclusions: it was possible to obtain an exhaustive analysis of the parameters associated with the gait of a subject after 12 years of total hip arthroplasty.展开更多
This study was conducted to analyze the competitiveness of a Forensic Science Laboratory (FSL) based on employees’ professional development and diversification into different professions. The FSL is the sole Governme...This study was conducted to analyze the competitiveness of a Forensic Science Laboratory (FSL) based on employees’ professional development and diversification into different professions. The FSL is the sole Government Laboratory?in Tanzania which serves the police force, judiciary system and the public?prosecution. A sample of 88 current employees of different professions (53 chemists, 26 technologists and 9 accountants) was used. The data was collected from the?year 2000 to 2015. Mathematical expressions were developed to quantifystagnation and total service time at specific development levels based on which?new?indices (professional development index, PDI;leadership competency index, LCI;and succession index, SI) were developed. The number of employees for support cadres was observed to increase faster in the last 5 years from 34.3% in?2009/2010 to 57.1% in 2014/2015, compared to chemists and technologists.?The?staff-to-line ratio (SLR) has been increasing since 2000, reaching above 0.8?from 2013 to 2015 indicating that the FSL was undergoing diversification and division of labor. The FSL workforce comprised of mainly semi-skilled employees. Promotions have played a big role in employees’ professional development. In some cases employees were promoted to higher level before 3 years stipulated?by public service regulations, regarded as breach of procedures. However,?high?stagnation of employees at specific ranks was observed (up to 9 - 10 years) which causes frustrations, lost morale and engagement. Results indicated that most?of the service years are served in ranks A and B. Indices developed in thisstudy?form a baseline data for strategic analysis of FSL competitiveness in the future?and allow for proper human resource planning. Highest values of LCI and PDI were observed for chemists. Technologists in the FSL show higher succession index compared to chemists and accountants. Employee diversification in the?FSL has been increasing from 2003 to 2015. It was concluded that the FSL?competitive advantage is continuously increasing.展开更多
This paper presents an automated testing network system for paper laboratory based on CAN bus. The overall architecture, hardware interface and software function are discussed in detail. It is indicated through experi...This paper presents an automated testing network system for paper laboratory based on CAN bus. The overall architecture, hardware interface and software function are discussed in detail. It is indicated through experiment that the system can collect, analyze and store the test results from the various measuring instruments in the paper lab automatically. The simple, reliable, low-cost measuring automation system will have a prosperous application in the future paper industry.展开更多
基金the Synergy Project ADAM(Autonomous Discovery of Advanced Materials)funded by the European Research Council(Grant No.856405).
文摘Estimation of the sample position is essential for working process monitoring and management in the life science automation laboratory.Bluetooth low-energy(BLE)beacons have the advantages of low price,small size and low energy consumption,which make them a promising solution for sample position estimation in the automated laboratory.Several fingerprinting models have been proposed to achieve indoor localization with the received signal strength(RSS)data.However,most of the research depends on intensive beacon installation.Proximity estimation,which depends entirely on one beacon,is more suitable for sample position estimation in large automated laboratories.The complexity of the life science automation laboratory environment brings challenges to the traditional path loss model(PLM),which is a widely used radio wave propagation model-based proximity estimation method.In this paper,BLE sensing devices for sample position estimation are proposed.The BLE beacon-based proximity estimation is discussed in the framework of machine learning,in which the support vector regression(SVR)is utilized to model the nonlinear relationship between the RSS data and distance,and the Kalman filter is utilized to decrease the RSS data deviation.The experimental results over different environments indicate that the SVR outperforms the PLM significantly,and provides 1 m absolute errors for more than 95%of the testing samples.The Kalman filter brings benefits to stable distance predictions.Apart from proximity-based sample position estimation,the proposed framework turned out to be effective in position estimation between parallel workbenches and position estimation on an automated workstation.
文摘Introduction: gait analysis of a subject with total hip replacement is described. Objective: instrumental gait analysis of a subject 12 years after the total hip arthroplasty. Materials and Methods: in a movement analysis laboratory, locomotion studies were carried out at freely chosen walking speed by a 64-year-old subject, obtaining kinematic, kinetic and surface electromyographic data in time and space. All measurements were assessments by applying walking protocols on a straight surface of 8 m long. Results: abnormal slight activations of semitendinosus and tibialis anterior muscles, of the left limb, were observed throughout the gait cycle, no spatiotemporal parameters far from normal values were detected. Conclusions: it was possible to obtain an exhaustive analysis of the parameters associated with the gait of a subject after 12 years of total hip arthroplasty.
文摘This study was conducted to analyze the competitiveness of a Forensic Science Laboratory (FSL) based on employees’ professional development and diversification into different professions. The FSL is the sole Government Laboratory?in Tanzania which serves the police force, judiciary system and the public?prosecution. A sample of 88 current employees of different professions (53 chemists, 26 technologists and 9 accountants) was used. The data was collected from the?year 2000 to 2015. Mathematical expressions were developed to quantifystagnation and total service time at specific development levels based on which?new?indices (professional development index, PDI;leadership competency index, LCI;and succession index, SI) were developed. The number of employees for support cadres was observed to increase faster in the last 5 years from 34.3% in?2009/2010 to 57.1% in 2014/2015, compared to chemists and technologists.?The?staff-to-line ratio (SLR) has been increasing since 2000, reaching above 0.8?from 2013 to 2015 indicating that the FSL was undergoing diversification and division of labor. The FSL workforce comprised of mainly semi-skilled employees. Promotions have played a big role in employees’ professional development. In some cases employees were promoted to higher level before 3 years stipulated?by public service regulations, regarded as breach of procedures. However,?high?stagnation of employees at specific ranks was observed (up to 9 - 10 years) which causes frustrations, lost morale and engagement. Results indicated that most?of the service years are served in ranks A and B. Indices developed in thisstudy?form a baseline data for strategic analysis of FSL competitiveness in the future?and allow for proper human resource planning. Highest values of LCI and PDI were observed for chemists. Technologists in the FSL show higher succession index compared to chemists and accountants. Employee diversification in the?FSL has been increasing from 2003 to 2015. It was concluded that the FSL?competitive advantage is continuously increasing.
文摘This paper presents an automated testing network system for paper laboratory based on CAN bus. The overall architecture, hardware interface and software function are discussed in detail. It is indicated through experiment that the system can collect, analyze and store the test results from the various measuring instruments in the paper lab automatically. The simple, reliable, low-cost measuring automation system will have a prosperous application in the future paper industry.
