Two - component / Double Diffusive Marangoni (DDM) convection with Dufour effects, in a two-layered system, has been studied analytically by using Darcy – Brinkmann Model. For fluid layer, the upper boundary is free surface tension depending on both temperature and concentration, for porous layer lower rigid boundaries are insulating to heat mass. At interface, normal velocity, stress, shear ma...

A 42-year-old woman was admitted to the hospital because of odynophagia and neck pain after swallowing a piece of bone. Anteroposterior (AP) and lateral neck X-ray showed the foreign body. Rigid esophagoscopy under general anesthesia was performed and foreign body extracted by rigid bronchoscopy.

Recently we have shown that a phase transition occurs in the leading approximation of the large N limit in rigid strings coupled to long range Kalb-Ramond interactions. The disordered phase is essentially the Nambu-Goto-Polyakov string theory while The ordered phase is a new theory. In this part I letter we study the first sub-leading quantum corrections of the free rigid string and derive the ...

PURPOSE To evaluate the outcomes of rigid ureterorenoscopy (URS) for renal pelvic stones (RPS) sized 1 to 2 cm and to determine the predictive factors for the requirement for flexible URS (F-URS) when rigid URS fails. MATERIALS AND METHODS A total of 88 patients were included into the study. In 48 patients, the RPS were totally fragmented with rigid URS and F-URS was not required (group 1). I...

An operator T acting on a Banach space X is said to be super-recurrent if for each open subset U of X, there exist $$\lambda \in {\mathbb {K}}$$ and $$n\in {N}}$$ such that T^n(U)\cap U\ne \emptyset $$ . In this paper, we introduce study the notions super-rigidity uniform which are related notion super-recurrence, also investigate basic properties these two notions. addition, discuss spectrum o...

The aim of this article is to give for each dimension d≥2 an infinite series rigid compact complex manifolds which are not infinitesimally and, hence, exhaustive answer a problem Morrow and Kodaira stated in the famous book Complex Manifolds.

Research on mass transfer in liquid membrane permeation has still left some challenging aspects to be solved. Although discussed very intensively the published models are rarely comparable and suffer from a lack of accuracy. The program was started with research on the widely investigated and very common test system Znaqu / Bis(2-ethylhexyl) phosphoric acid/ sulphuric acid. Based on the experim...

this paper evaluates a new and simple controller design method based on qft (quantitative feedback theory) for a two-link manipulator whose first link is rigid and the second is flexible. a piezoelectric patch is attached to the surface of the flexible link for vibration suppression of it. this system is modeled as a nonlinear multi-input multi-output (mimo) control systems whose inputs are two...