In this paper, a mixed-integer linearized programming (MINLP) model is presented to design a group layout (GL) of a cellular manufacturing system (CMS) in a dynamic environment with considering production planning (PP) decisions. This model incorporates with an extensive coverage of important manufacturing features used in the design of CMSs. There are also some features that make the presented...

This paper presents a multi-objective mixed-integer nonlinear programming model to design a group layout of a cellular manufacturing system in a dynamic environment, in which the number of cells to be formed is variable. Cell formation (CF) and group layout (GL) are concurrently made in a dynamic environment by the integrated model, which incorporates with an extensive coverage of important ...

In Internet of Things, where billions devices with limited resources are communicating each other, security has become a major stumbling block affecting the progress this technology. Existing authentication schemes based on digital signatures have overhead costs associated them in terms computation time, battery power, bandwidth, memory, and related hardware costs. Radio frequency fingerprint (...

Purpose – This paper describes the design and implementation of an activity-based costing (ABC) system for a textile company in Taiwan. Design/methodology/approach – An in-depth field investigation by collecting and analyzing 39 months of field data, gathering information from files and archives, direct observation, interviews, and statistical analyses was conducted. Findings – First, the compa...

Frustrated by current practice and convinced of a better way, the author left his salaried position and opened a solo practice with no staff. Because his overhead costs are extremely low, the author is able to see fewer patients per day and create more meaningful interactions. By offering unfettered access, the author finds that his patients trust him more and actually call him less.

Signcryption is a cryptographic primitive that performs digital signature and public key encryption simultaneously, at lower computational costs and communication overhead than signing and encrypting separately. Recently, Chung et al. proposed an anonymous ECC-based signcryption scheme. We show that their scheme is not secure even against a chosen-plaintext attack.