Real-time gait detection and pose estimation are critical for safety monitoring prevention of work-related musculoskeletal disorders construction workers. We present a single wearable inertial measurement unit (IMU)-based human walking on flat sloped surfaces. The algorithm is built recurrent neural network-based method its outcome then used in the full-body estimation. scheme also predicts terrain slope information real-time. obtained through learned motion manifold latent space with...

The building envelope plays an important role for the contributions to whole thermal load, especially residential houses without significant internal heat gain; hence, it is a critical component influencing building's performance. However, R-value usually acquired from original design value, regardless of insulation degrading that has occurred during long lifecycle. main reason lies in that, with traditional methods, situ extremely inconvenient measure. In this study, simple noninvasive...

For years, numerous studies have been done to apply advanced technologies avoid workers from injuries. Recently with the development of robotics and automation technologies, application assistive wearable has got more attention construction industry after its successful applications in medical military fields. However, there is little information about exoskeleton's area since technology not fully adopted by yet. Thus, objective this paper review state-of-art exoskeleton different fields,...

An exoskeleton may assist performance of basic work-related tasks. Its application should not alter user kinematics, which compromise safety.This case study was used to assess whether people wearing a lower-body K-SRDTM could complete common work tasks without altering kinematics that increase injury risk.Three males performed three tasks: kneeling and standing (kneel), lifting lowering weighted box floor-to-waist (lift), stair-climbing with (climb), all repeated use (EXO, NONE).Kinematics...

The objective of this research is to analyze regional economic difference and explore the influencing factors, which would eventually provide an effective foundation narrow differences. In paper, a new model established considering interactions between spatial weight human capital foreign direct investment (FDI). With panel data from twelve western provinces in China, empirical conducted by adopting feasible generalized least squares (FGLS) fixed effects model. preliminary results show that:...

This paper introduces uncertainty theory to deal with non-deterministic factors in ranking alternatives. The uncertain variable method (UVM) and the definition of consistency for comparison matrices are proposed. A simple yet pragmatic approach testing whether or not an matrix is consistent put forward. In cases where inconsistent, algorithm used generate matrix. And then can derive weights. final given by weighs if they acceptable; otherwise we rely on ranks expected values weights instead....

Rescheduling is a necessary procedure when new jobs come and are inserted into existing schedule in remanufacturing. The stability an important metrics to evaluate the quality of rescheduling solution. This paper proposed novel discrete Jaya algorithm solve flexible job shop problem with five objectives, including Makespan, total flow time, maximum machine workload, metrics. purpose analyze influence or conflict between other objectives. Experiments executed on large scale remanufacturing...

Noise induced hearing loss (NIHL) has been a pervasive problem for all construction trades, yet workers still lack sufficient knowledge concerning hazardous occupational noise. Due to the nature of invisibility itself, noise exposure is hard be intuitively perceived through traditional training methods improve workers' perception hazards, such as, short verbal and written instructions, during employee orientation site safety meeting. With an increasing adoption advanced information...

Uncertainty theory is a branch of axiomatic mathematics dealing with experts’ belief degree. Considering the uncertainty degree in evaluation system and different roles which indices play evaluating overall goal hierarchical structure, new comprehensive method constructed based on theory. First, index scores weights are described by uncertain variables grades sets. Second, respect to introduced. Third, proved be generalization weighted average method. Finally, an application developed...

Due to the difference of work procedure and operation time different products on mixed-model assembly line car-manufacturing enterprises, production sequencing problem must be resolved in order guarantee regular line. Aiming at this objective level is kept a constant usage rate every part used The mathematical model presented, which solves out large-sized combinatorial optimization problem, especially NP-hard class an approximation method simulated annealing algorithm resolve lines. Results...

Variational design is an efficient method for product design; statistics indicates that about 70% of attributed to variational design. It vital importance enterprises achieve a complex new through while reusing the previous part model series, which can mostly improve their capability and efficiency development. Therefore, this paper puts forward based on master automatically generated from series. Using method, designers easily efficiently create only feature selection parameter...

Riveters and Buckers in the aircraft manufacturing industry are exposed to high vibration levels, often exceeding Daily Exposure Limit Value (DELV) of 5 m/s2. Proper control exposure muscle fatigue is crucial minimize risk Work-related Musculoskeletal Disorders (WMSD). This study investigates impact different rivet guns, gun handle positions, bucking bars on fatigue. Ten male participants, evenly divided between riveters buckers, participated experiment. Throughout investigation, various...

Emergency Position Service (EPS) has important application value in the fields of public security and disaster relief China. To promote scale Service, this paper mainly reviewed system architecture requirements location platform based on EPS, studied functional performance test methods EPS platform. Based specific results practical cases, efficiency reliability were analyzed, suggestions for future optimization improvement put forward.