2,856 research outputs found
Development of Hierarchical Simulation Framework for Design and Optimization of Molecular Based Flash Cell
The field of molecular electronics continues to spur interest in the quest for miniaturization and reduction of operational power of electron devices. Most of the systems described in the literature are based on organic molecules, such as benzene, ferrocene and fullerenes [1]. However, the use of inorganic molecules known as polyoxometalates (POMs) (see Fig. 1 and Fig. 2) could offer several important advantages over the conventional and organic based devices. The interest in POMs for flash cell applications stems from the fact that POMs are highly redox active molecules and that they can also be doped with electronically active heteroatoms [3]. They can undergo multiple reversible reductions/oxidations, which makes them attractive candidates for multi-bit storage in flash memory cells. Our recent work showed that POMs are more compatible with existing CMOS processes than organic molecules and they can replace the polysilicon floating gate in contemporary flash cell devices [2]. In this work, we discuss a further improvement and development of our simulation framework and models, e.g. Poisson distribution of the molecules in the oxide, introducing a various device geometry such as FDSOI and nanowires and improved simulation flow
Hypothenar Muscles and Guyon’s Canal
The increased number of articles in the last years about hypothenar variations and some misdescriptions and the role of the additional structures to ulnar nerve and artery compression, as well as my unostentatious contribution in the field, provoked me to write this chapter. The aim of it is to present in detail the usual hypothenar muscular anatomy, including the origins and insertions of the hypothenar muscles, their relations to each other, the vascular supply and innervation, the function of the muscles, the reported variations and their possible clinical implications. Herein, I also presented briefly the Guyon’s canal anatomy and some interesting comments about it. Presenting the compendium about hypothenar muscles and the canal to my opinion will help the anatomists and the clinicians to better understand the clinically oriented anatomy. They also will be more qualified in the anatomical dissection course as well as during the surgical interventions. The detailed knowledge of the anatomy in the region would be also useful to medical students in better understanding the hypothenar region
Abductor pollicis longus muscle — is it a new variant of the extensor forearm and thenar eminence or a well-known variation?
On the uniformly continuity of the solution map for two dimensional wave maps
The aim of this paper is to analyse the properties of the solution map to the Cauchy problem for the wave map equation with a source term, when the target is the hyperboloid that is embedded in . The initial data are in . We prove that the solution map is not uniformly continuous
ON ТНЕ REТROPERIТONEAL SYNDROME
Тhе clinical picture of acute abdomen аrе conditioned bу а series of pathological processes (hemorrhage, inflammation, obstruction in the gastro-intestinal tract) which develop in the peritoneal cavity and demand an urgent surgical intervention. Тhе symptoms of acute abdomen may bе caused also bу а number of extra peritoneal disorders. Symptoms which геsеblе acute abdomen and аrе due to such extraperitoneal disorders аrе generally notified as “peritonism". Peritonism includes the so called retroperitoneal syndrome, which is а symptomocomplex due to а pathological process in the retroperitoneal space resembling the clinical picture of acute abdomen.Etiologically the retroperitoneal syndrome may bе caussed bу almost аll acute pathological processes in the retroperitoneal space. Spontaneous and traumatic retroperitoneal hematoma is the most common etiologic factor. Next rank the inflammation of organs and tissues in the retroperitoneal space which have occurred ргimагу ог secondarily in the neighbouring organs, such as peri- аnd paranephritis, thrombophlebltis of the rietroperitoneal venous network of vessels, purulent echinococcus cysts, purulent pancreatitis, purulent appendicitis etc. Tumours of the retroperitoneal space rank third in incidence
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