Canopy gaps are one of the most important structural features of forest ecosystems, and studying of them can have useful results and implications for forest management. The aim of this study is investigation of characteristics and regeneration within canopy gaps in an intact beech stand in the Shastkalateh Experimental Forest of Hyrcanian region, north of Iran. All canopy gaps and related fores...

Permanent Magnet Synchronous Motors (PMSMs) have been widely used in many industrial applications. In This paper a new method for multi objective optimal design of a permanent magnet synchronous motor (PMSMs) with surface mounted permanent magnet rotor is presented to achieve maximum efficiency and power density using a Bees algorithm for industrial applications. The objective function is a...

INTRODUCTION Maintaining hospital consultant staffing levels often requires the employment of locum tenens to meet service needs. This is particularly so in hospitals where core clinical services are run by a small number of permanently appointed consultants. The problems associated with locum employment are underestimated and little attention has been directed towards addressing the issue in t...

in recent years, there has been a fast growth in wind energy conversion system (wecs). there are two general types of wind turbines in wecs: fixed speed wind turbines and varying speed wind turbines.permanent magnet synchronous generator (pmsg) is one of the most attractive generators for the varying speed turbine wecs.in this paper, a fuzzy controller is proposed to control the current source ...

BACKGROUND Factors associated with the development of atrial fibrillation (AF) in general population have been described, but it is still unknown whether the same risk factors apply to heart failure (HF) patients. The aim of this study was to identify clinical factors related to various forms of AF in HF patients. METHODS The clinical and echocardiographic characteristics were assessed in 155...

Evolution of information production processes (IPPs) can be described by a general transformation function for the sources and for the items. It generalises the FellmanJakobsson transformation which only works on the items. 1 Permanent address

Introduction: It is not a routine to remove the parathyroid glands during thyroidectomy except when they are ischemic or have malignancy. In this study, the prevalence of parathyroid removal during total thyroidectomy was assessed. Methods: In this case-series study, 53 consecutive patients under total thyroidectomy in two general hospitals during 2013-2014 were enrolled. Serum parathormone va...

Multiple permanent-wave trains in nonlinear systems are constructed by the asymptotic tailmatching method. Under some general assumptions, simple criteria for the construction are presented. Applications to fourth-order systems and coupled nonlinear Schrödinger equations are discussed.

transfer of patients from the cardiac intensive care unit to the general ward, is one of the main reasons for anxiety. given that the transfer anxiety may be due to receive at least, inconsistent or do not receive enough information before the patients leaving the intensive care unit, therefore, this study aimed to determine the effect of information provision on anxiety levels in patients tran...