In this paper, we report on a cost effective and simple method for fabricating a flexible multi-electrode array for subdural neural recording. The electrode was fabricated using a PDMS-Parylene bilayer to combine the major advantages of both materials. Mechanical and electrical characterizations were performed to confirm functionality of a 16-site electrode array under various flexed/bent condi...

The evaluation of pore structure is critical in understanding reservoir characteristics. This study aims to analyze the microscopic characteristics tight reservoirs from various provenances through physical property analysis, casting thin sections, scanning electron microscopy (SEM), and constant−rate mercury injection. throat parameters Chang 7 were analyzed compared those Xin’anbian Heshui ar...

Bridges are often built in locations susceptible to multiple extreme hazards. Meeting some or all of these constraints drives the development of innovative multi-hazard design concepts. This paper presents the results of research conducted to develop and experimentally validate such multi-hazard bridge pier concepts. The first concept is a pier-bent made of concrete filled steel tube columns. F...

quart bottle, through the rubber stopper of which pass two pieces of glass tubing,?one short,-just reaching the neck of the bottle. To this the can ill a is attached by about four feet of rubber tubing such as is used for infants' feeding bottles. The canuia can be made by the silversmith out of a rupee, or a hydrocele canuia can be firmly tied in. I have on one occasion used a small quill. The...

Bent functions (Boolean functions with extreme nonlinearity properties) are actively studied for their numerous applications in cryptography, coding theory, and other fields. New statements of problems lead to a large number of generalizations of the bent functions many of which remain little known to the experts in Boolean functions. In this article, we offer a systematic survey of them.

In this paper we develop a technique that allows us to obtain new effective construction of 1-resilient Boolean functions with very good nonlinearity and autocorrelation. Our strategy to construct a 1-resilient function is based on modifying a bent function, by toggling some of its output bits. Two natural questions that arise in this context are “at least how many bits and which bits in the ou...

Abst rac t The perfect nonlinear mappings and their implementations studied in [4] where based on the Maiorana-McFarland construction of bent functions. Recently Carlet [1] presented two modifications of the MaioranaMcFarland construction and obtained two new classes of bent functions. The purpose of the present work is to give nontrivial examples of Carlet's bent functions and construct new pe...

We show that dimensional doubly dual hyperovals over F2 define bent functions. We also discuss some known and a few new examples of dimensional doubly dual hyperovals and study the associated bent functions.