We use constrained optimization to select operating parameters for two circuits: a simple 3-transistor square root circuit, and an analog VLSI artificial cochlea. This automated method uses computer controlled measurement and test equipment to choose chip parameters which minimize the difference between the actual circuit's behavior and a specified goal behavior. Choosing the proper circuit par...

We study flows over time in networks with transit times on the arcs. Transit times describe how long it takes to traverse an arc. A flow over time specifies for each arc a time-dependent flow rate that must always be bounded by the arc’s capacity. Only recently, Melkonian introduced an alternative model where so-called bridge capacities bound the total amount of flow traveling along an arc, at ...

Purpose We aimed to present the ophthalmic manifestations of neuro-metabolic disorders. Methods Patients who were diagnosed with neuro-metabolic disorders in the Neurology Department of Mofid Pediatric Hospital in Tehran, Iran, between 2004 and 2014 were included in this study. Disorders were confirmed using clinical findings, neuroimaging, laboratory data, and genomic analyses. All enrolled ...

This paper presents the preliminary results of a study on adoption of e-commerce in Australian small and medium enterprises. Tornatsky and Fleischer (1990) model is used, therefore the main group of factors taken into consideration are environmental, organizational and technological. Five case companies located in the area of Brisbane, Queensland have been interviewed. The preliminary results a...

This study examines the determinants of extent of internet/e-business technologies (IEBT) use by smalland medium-sized enterprises (SMEs) in Maritime Canada. A research model based on the Technology–Organization–Environment (TOE) framework, proposed by Tornatzky and Fleischer (1990) was used to guide this research. Such factors as relative advantage, compatibility, complexity, management suppor...

UNLABELLED Our understanding of etiology and pathogenesis of many disorders, corneal included, greatly relies on existing knowledge in human biochemistry and biophysics. This study was aimed at chemical mapping of normal and keratoconic corneas. MATERIAL AND METHODS Modern methods of analytical chemistry, such as X-ray fluorescence and energy-dispersive X-ray spectroscopy on the basis of scan...

REPORTS Fission-Track Ages and Track-Annealing Behavior of Some Micas: R. L. Fleischer et al. 349 Geomagneti Polarity Epochs: A . Cox, R. R. Doell, G. . Dalrymple . .. G.ib 35 High-Pressure Metallic Indium Telluride: Preparation and Crystal Structure: C. B. Sclazr, L. C. Carri.son, C. M. Schwartz .................352 Cretaceous Fossils Collected at Johnson Nunatak, Antarctica: i. C. B ehrendt a...