نتایج جستجو برای: pulsating torque

تعداد نتایج: 24927  

2013
Winfried Möller Uwe Schuschnig Gülnaz Celik Wolfgang Münzing Peter Bartenstein Karl Häussinger Wolfgang G. Kreyling Martin Knoch Martin Canis Sven Becker

OBJECTIVES Chronic rhinosinusitis (CRS) is a common chronic disease of the upper airways and has considerable impact on quality of life. Topical delivery of drugs to the paranasal sinuses is challenging, therefore the rate of surgery is high. This study investigates the delivery efficiency of a pulsating aerosol in comparison to a nasal pump spray to the sinuses and the nose in healthy voluntee...

1997
DIMITAR D. SASSELOV

We review the basic concepts, present state of theoretical models, and the future prospects for theory and observations of pulsating stellar atmospheres. Our emphasis is on radially pulsating cool stars, which dynamic atmospheres provide a general example for the differences with standard static model atmospheres.

2006
W. W. Weiss

Asteroseismology of pulsating pre-main sequence (PMS) stars has the potential of testing the validity of current models of PMS structure and evolution. As a first step, a sufficiently large sample of pulsating PMS stars has to be established, which allows to select candidates optimally suited for a detailed asteroseismological analysis based on photometry from space or ground based network data.

Journal: :the modares journal of electrical engineering 2016
a. moazami a. kiyoumarsi b. mirzaeian m. niromand s. m. madani madani

the direct torque control (dtc) of interior permanent magnet synchronous motor (ipmsm) offers simple structure and fast torque response. the conventional switching table-based dtc (st-dtc) presents some disadvantages like high torque and flux ripple and also variable switching frequency. this paper investigates the improved st-dtc strategies to reduce both torque and flux ripple in dtc of ipmsm...

2002
Sylvain Turcotte Olivier Richard

Current models and observations of variability in HgMn stars disagree. We present here the models that argue for pulsating HgMn stars with properties similar to those of Slowly Pulsating B Stars. The lack of observed variable HgMn stars suggests that some physical process is missing from the models. Some possibilities are discussed.

Journal: :journal of mechanical research and application 2011
hossein nazary nafise aalipour mansour alizadeh

since knowledge on hydrodynamic torque of a butterfly valve is very important for butterfly valve design, its hydrodynamic torque is investigated in this paper. in reality, the investigation of the loss coefficient and torque from some experiments will take a long time and a lot of money. this paper presents a statistical study of the flow past the butterfly valve in a static analysis using com...

Journal: :journal of electrical and computer engineering innovations 2016
mostafa ahmadi darmani hooman hooshyar

axial flux permanent magnet (afpm) machines are attractive candidates for electric vehicles (evs) applications due to their axial compact structure, high efficiency, high power and torque density. this paper presents general design characteristics of afpm machines. moreover, torque density of the machine which is selected as main objective function, is enhanced by using genetic algorithm (ga) a...

2009
Tanya Krzywinska

The focus of this paper is on sex and videogames, seeking to provide a counterweight to the sensationalist treatment of the topic within the popular press. The author argues that there is surprisingly little explicit sexual imagery in games and asks what accounts for its disproportionate absence. An account is given of the way that the interactive nature of games which do include sex either in ...

1996
H. D. Taghirad

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید