Engineering Performance of a Rapid Hardening Hydraulic Binder with Hybrid Fiber

Performance of Coherent Optical Communication Systems With Hybrid Fiber Spans

We theoretically study the performance of coherent optical communication systems using quasi-single-mode fiber in the beginning of each span, to reduce the bulk of nonlinearities, followed by single-mode fiber, to limit multipath interference penalty within acceptable levels. Introduction Quasi-single-mode (QSM) fibers exhibit very large effective areas that result in a dramatic reduction of fi...

Environmental hydraulic engineering: a perspective

Hydraulic engineering is the science of water in motion, and mainly dealing with the interactions between the flowing fluid and its surrounding environment. The technical challenges are huge [2]. The levels of complexity are closely linked with the variety of water systems, the broad range of relevant time and length scales, the variability of water systems from droughts to gigantic floods, the...

A rapid cold-hardening process in insects.

Traditionally studies of cold tolerance in insects have focused on seasonal adaptations related to overwintering that are observed after weeks or months of exposure to low temperature. In contrast, an extremely rapid cold-hardening response was observed in nonoverwintering stages that confers protection against injury due to cold shock at temperatures above the supercooling point. This response...

Mathematical Modelling of a Hydraulic Accumulator for Hydraulic Hybrid Drives

Characterization of fiber distribution in steel fiber reinforced cementitious composites with low water-binder ratio

Image analysis technique is introduced to characterize fiber distribution in steel fiber reinforced cementitious composites. Through cutting and polishing of specimen, image acquisition of specimen surface, extraction of fiber feature, and measurement of related fiber parameters, i.e., dispersion coefficient and orientation factor, are given to quantitatively analyze fiber distribution. Effects...