Manual Ability Classification System provides a systematic method to classify how children with cerebral palsy use their hands when handling objects in daily activities. MACS is a subjective classification system and is based upon self-initiated manual abilities, with a particular emphasis on handling objects in a individual's personal space. MACS is designed for children with cerebral palsy, a...

A number of di€ erent performance measures have been used in the design and analysis of material handling systems. These performance measures have measured either: (1) the entire manufacturing system (e.g. job throughput), or (2) the material handling system independently (e.g. vehicle travel distance). The following is a review of performance, reliability, and performabilitymeasures used in th...

We will present a progress report on our effort to develop a science-based design methodology for warehousing systems. In particular, we will discuss the hierarchical structure of our design procedure. This includes the decisions and parameters used in the master model, the various sub-models, and the decision and data interaction between the various levels in the hierarchy. We will present sev...

In today’s dynamic market, organizations must be adaptive to market fluctuations. In addition, studies show that material-handling cost makes up between 20 and 50 percent of the total operating cost. Therefore, this paper considers the problem of arranging and rearranging, when there are changes in product mix and demand, manufacturing facilities such that the sum of material handling and rearr...

Work-related musculoskeletal disorders are highly prevalent in the supermarket sector with manual material handling being one of most commonly identified occupational risk factors. This cross-sectional study applied inertial motion capture and electromyography (EMG) to measure full-body kinematics muscle activity trapezius descendens erector spinae longissimus during 50 tasks performed by 17 wo...

Despite efforts of reducing harmful physical ergonomics exposures related to manual handling operations, the occurrence of hazardous exposures such as heavy or repetitive manual handling, non-neutral postures and hand-arm and whole-body vibrations is high in many occupational sectors. These physical ergonomics exposures are considered to substantially contribute to a large proportion of work re...