The single machine coupled task scheduling problem includes a set of jobs, each with two separated tasks, and there is an exact delay between the tasks. We investigate objective minimizing makespan under identical processing time for first period all time-dependent setting second task. Certain healthcare appointment problems can be modeled as problem. Also, incorporation lets human resource fat...

Surface nanoscale axial photonics (SNAP) microresonators with effective radius variations (ERVs) along the optical fiber axis can be fabricated by inscribing axially oriented lines inside a femtosecond laser. Here, we propose multi-dimensional fabrication parameter system for laser of SNAP devices and systematically investigate relationships between introduced ERV multidimensionally controllabl...

ABSTRACT Background: The radiographic image accuracy depends on the X-ray film information visibility. Good visibility is found by good contrast. Radiation exposure parameters (kVp, mAs) and film processing conditions have impact on contrast. In dentistry radiography machines, exposure time and processing procedure are set by radiographer. No optimized exposure time and process...

Molecular motors have inspired many avenues of research for nanotechnology but most molecular motors studied so far allow only unidirectional movement. The archaeal RNA-exosome is a reversible motor that can either polymerize or degrade an RNA strand, depending on the chemical environments. We developed a single molecule fluorescence assay to analyze the real time locomotion of this nanomachine...

This paper considers the identical parallel machine scheduling problem to minimize the makespan with controllable processing times, in which the processing times are linear decreasing functions of the consumed resource. The total resource consumption is limited. This problem is NP-hard even if the total resource consumption equals to zero. Two kinds of machines, critical machine and non-critica...