The minimum distance between Bent functions and Resilient functions is studied. An algorithm for calculating the minimum distance betw een Bent functions and resilient functions is given. We give a new lower bound for the minimum distance be tween Bent functions and 1 resilient functions. This new lower bound is better than that presented by S. Maity etc in 2004, and their conjectures are prove...

We present a new characterization of semi-bent and bent quadratic functions on finite fields. First, we determine when a GF (2)-linear combination of Gold functions Tr(x i+1) is semi-bent over GF (2), n odd, by a polynomial GCD computation. By analyzing this GCD condition, we provide simpler characterizations of semi-bent functions. For example, we deduce that all linear combinations of Gold fu...

In this paper we investigate the properties of generalized bent functions defined on Z2 with values in Zq where q ≥ 2 is any positive integer. We characterize the class of generalized bent functions symmetric with respect to two variables, provide an analogue of Maiorana– McFarland type bent functions in the generalized set up. A class of bent functions called generalized spreads type is introd...

In this presentation a technique for constructing bent functions from plateaued functions is introduced. This generalizes earlier techniques for constructing bent from near-bent functions. Analysing the Fourier spectrum of quadratic functions we then can construct weakly regular as well as non-weakly regular bent functions both in even and odd dimension. This type of functions yield the first k...

Abstract Background Tube feeding is a common procedure in neonatology. In humans, tube misplacement reportedly occurs up to 59% of all cases and may lead perforation 1.1% preterm intubated neonates. While numerous studies on optimal placement have been performed human neonates, current recommendations canine feline neonatology are based, at best, adult animals. Herein, we aimed test ultrasonogr...

We have developed two types of shape memory alloy (SMA) actuator and estimated the long-term reliability of SMA microcoils. A tube type tip articulator consists of 4 sets of SMA microcoil (wire diameter: 0.125 mm, coil diameter: 0.5 mm) for driving source and super elastic alloy (SEA) microcoils (wire diameter: 0.1 mm, coil diameter: 0.5 mm) for bias springs, support plates and flexible outer t...

The heart of a chick embryo at the time the blood first starts to circulate through it is essentially a double-layered tube. I t s endocardia1 layer consists of an endothelial lining held in place within the outer epimyocardial investment by a surprisingly thick layer of gelatinous, non-cellular material which Davis (’24, ’27) called cardiac jelly. Blood enters this primitive young heart at its...

This research presents a new flexible bending machine and its practical applications. The proposed machine uses a new method. When tubes are fed into the fixed and mobile dies, they are bent by shifting the relative position of the mobile die. The bending radius is controlled by the relative distance and orientation between the mobile die and the tube. The bending angle is controlled by the len...

to large flasks. A large inoculum is important for the success of such transfers. The standard procedures for doing this, i.e., several loopfuls or pipetting, are not always the most desirable procedures. The former increases the possibility of contamination of both air and culture, and the latter requires additional time for washing and sterilization. We have, therefore, developed a multiple l...