Due to its inherent complexity such as limited work volume and degree of freedom, minimally invasive surgery (MIS) is ergonomically challenging surgeons compared traditional open surgery. Specifically, MIS can expose performing excessive ergonomic risks including muscle fatigue that may lead critical errors in surgical procedures. Therefore, detecting the vulnerable muscles time-to-fatigue during great importance order prevent these errors. The main goal this study propose test a novel...

Data envelopment analysis (DEA) and stochastic frontier functions (SFF) are two well-known tools for performance efficiency of profit non-profit organisations, referred to as decision making units (DMUs). The challenge traditional DEA is how account both managerial observational errors if present in the analysis, so determine true efficient frontiers. This paper proposes a novel methodology frontiers non-parametric environment. Specifically, integrated with SFF through support vector machine...

As one of the most important planning and operational issues in manufacturing systems, production scheduling generally deals with allocating a set resources over time to perform tasks. Recently, control theoretic approaches based on nonlinear dynamics continuous variables have been proposed solve problems as an alternative traditional methods that deal decision-making components discrete nature. The major goal this paper is improve predictability performance existing model employs approach,...

This article focuses on the design of a novel electrocardiography (ECG) training simulator that has two important modalities: a) placing electrodes desired locations, and b) examining ECG signals measured from electrodes. In this study, we designed 3-dimensional cube network consisting electric wires resistors for simulator, which generates to simulate heart function. Specifically, through multiple steps. first step, embedded microcontroller pulse width modulation (PWM) are converted...

In metal cutting processes, as the surface of tool worn out, it releases certain odorous compounds into chamber air. This study proposes a novel approach and its associated stream mining methods to monitor condition by taking advantage this phenomenon. The chemical composition gases released during process can be used very accurately that is not possible with present direct or indirect measurement techniques. captured an e-nose change wear progresses. made significant appropriate doping...

Reducing the variance of part completion times about promised due dates is an important element Just-In-Time production because it reduces work-in-process inventory and tardiness simultaneously. Scheduling models algorithms are developed to minimize Mean Squared Deviation (MSD) on a single machine. A generic model in real vector space for understanding structural relationship between optimal schedule location dates. Geometric insights gained from this used relate shortest longest processing...

Recent technological progress offers the opportunity to significantly transform conventional open surgical procedures in ways that allow minimally invasive surgery (MIS) be accomplished by specific operative instruments’ entry into body through key-sized holes rather than large incisions. Although MIS an for less trauma and quicker recovery, thereby reducing length of hospital stay attendant costs, complex nature this procedure makes it difficult master, not least because limited work area...

Workers in grocery stores are exposed to numerous musculoskeletal risks that can be reduced using assistive devices while performing stocking tasks. A regional store has recently deployed a mobile cart without comprehension of its ergonomic impact on workers, which this article investigates normalized electromyography data (%MVC). This studies not only based %MVC values but also work performance represented by muscle force metric (MFM). The results from study showed highest groups and MFM...

Purpose The purpose of this paper is to provide insights for understanding the relationship between rapid manufacturing process rhenium components in jet nozzle fabrication using electron beam‐physical vapor deposition (EB‐PVD). Specifically, develop a methodology characterize and improve new through motion planning maintaining uniformity thickness. Design/methodology/approach This research first identifies several important objectives process, then develops an optimized heuristic method...

This paper proposes a model to assess the vulnerability of supply chain networks disturbances, based upon topography and interconnectedness various resources in networks. First, this system is defined on expected amount information that required describe state terms topology interrelationship among resources. Then, used form matrix, referred as interaction matrix. Next, dynamics under disturbances formulated using Finally, analyses stability given network measures entropy. The proposed...