This paper established a system dynamics model of energy saving and emission reduction in coal mining area, as well as conducted simulation of different development plans, based on the analysis of energy saving and emission reduction factor of coal production links, of the complex structure of energy saving and emission reduction system in coal mining area, and of the dynamic feed-back mechanis...

The purpose of this study was to investigate the harmonious facial profile before and after orthodontic treatment on permanent dentition and to determine the factors which influence lateral facial harmony. Materials were lateral Roentgen cephalograms from 150 subjects (25 males and 25 females each in 3 groups--maxillary protrusion, mandibular protrusion and crowding--) taken before and after tr...

the objective of this research was to study the effects of phenological stages on yield and quality traits in 22 populations of tall wheatgrass agropyron elongatum. a split plot design was conducted using a complete randomized block with two replications in lorestan (borujerd), iran during 2007-2008. the genotypes were cut in five maturity stages as vegetation, stem elongation, heading date, an...

In this paper a multivariate quality control procedure is offered in which several correlated stages are present in production systems and in each stage there are several correlated control variable. Using Hotelling's T2 statistic, first, each stage is tested for being out of control. Then out of control variables are selected using Murphy's method. The remainder of the research involves evalua...

Conventional data envelopment analysis (DEA) models are used to measure efficiency score of production systems when they are considered as black boxes and their internal relationship is ignored. This paper deals with a common special case of network systems which is called multi-stage production system and can be generalized to many organizations. A multi stage production system has some stages...

Web technology evolves organically, rarely taking the straightest path to new places. The story of its dominant syntaxes is one example. Starting from very loosely defined SGML-inspired markup, it then went through a period of XML austerity that intended to curtail the race to the bottom between browsers in tag soup processing. Such a draconian approach failed, but out of the melee came HTML5 w...

Through a field survey on the religious beliefs among villagers of the Jingpo Nationality in Dengga Village, Nongdao Town, Ruili in Yunnan, the author of this article believes under the times background of constructing a harmonious contemporary society, as a religious belief and religious culture, Christianity has to be positively led to suit with the socialism society and play a positive role ...