Abs t rac t At the heart of many optimizat ion procedures are powerful pruning and propagation rules. This paper presents a case study in the construction of such rules. We develop a new algor i thm, Complete Decreasing Best F i t , that finds the opt imal packing of objects into bins. The algor i thm use a branching rule based on the well known Decreasing Best Fi t approximat ion algor i thm. ...

Accumulating herbage mass to facilitate the extension of grazing season in autumn is commonly practised. The objective current study was investigate effect accumulating varying target masses (THM) and imposing different defoliation dates (DD), on mass, sward quality water-soluble carbohydrates subsequent spring. A 4 × 3 factorial split plot design assigned with four THM (Low ? 500 kg·DM·ha?1, M...

A coupled thermal, hydrologic and mechanical (THM) analysis is conducted to evaluate the impact of coupled THM processes on the performance of a potential nuclear waste repository at Yucca Mountain, Nevada. The analysis considers changes in rock mass porosity, permeability, and capillary pressure caused by rock deformations during drift excavation, as well as those caused by thermomechanically ...

Let F be a field of characteristic ` > 0 and let G be a finite group. It is well-known that the dimension of the minimal projective cover Φ1 (the so-called 1PIM) of the trivial left F[G]-module is a multiple of the `-part |G|` of the order of G. In this note we study finite groups G satisfying dimF(Φ1 ) = |G|`. In particular, we classify the non-abelian finite simple groups G and primes ` satis...

A new algori thm for computing the free distance of turbo codes is applied to the CCSDS and the UMTS standard codes. Results on the free distance behaviour for increasing interleaver length are also presented.

Bundy. Silver and Plummet (1985) provide an analysis of the Focussing algori thm and the Classification algorithm in the case where the description space consists of a set of relation trees. This paper discusses an extension to their analysis in which the description space is construed as a geometric space. Under this construal the behaviour of both the Focussing algori thm and the Classificati...

Human Contact Network is a kind of DTN (Delay Tolerant Networks), and is closely related with people’ activities. Owing to its intermittent connectivity and unique human mobility patterns, how to transmit data in an effective way is a challenging problem for DTN. In this paper, considering the regularity of people activities, we introduce a THM (Trip History Model) to record the activities of p...

The cancer risks (CR) by oral ingestion, dermal absorption, and inhalation exposure of trihalomethanes (THM) from tap water of ten districts in Fortaleza, Brazil were estimated. The mean levels of THM compounds were obtained in Fortaleza tap water as follow: 63.9 microg L(-1) for chloroform (CHCl(3)), 40.0 microg L(-1) for bromodichloromethane (CHBrCl(2)), and 15.6 microg L(-1) for dibromochlor...