Stabilization using the concept of control Lyapunov function is investigated for non linear non autonomous systems. First, necessary conditions for stabilization are given. Then, sufficient conditions ensure the existence of continuous stabilizing feedback for non autonomous affine systems. Lastly, a generalization of Sontag’s formula is given. Copyright c ©2005 IFAC

METHODS: A retrospective chart review was conducted for all breast, head/neck, and lower extremity free flaps performed at a single-institution between 2005–2015. The primary endpoint, successful salvage, was defined as any flap that did not result in complete flap loss. Univariate analysis was performed using Chi-squared, Wilcoxon rank-sum, and Fisher’s exact test. Lastly, a multivariate logis...

An axiomatization of the interaction between the players of any coalition is given. It is based on three axioms: linearity, dummy and symmetry. These interaction indices extend the Banzhaf and Shapley values when using in addition two equivalent recursive axioms. Lastly, we give an expression of the Banzhaf and Shapley interaction indices in terms of pseudo-Boolean functions.

This paper proposes a provably secure transformation of Paillier cryptosystem into an IND-CCA2 secure one in random oracle model. Our construction exploits the randomness extractability of Paillier cryptosystem for achieving efficiency. Lastly, we compare this conversion with other generic and specific IND-CCA2 conversions in terms of computational overhead and efficiency.

Firstly, a design of log audit system was raised based on PHP in the main mainstream operating systems and network environment; then, the “client/server” framework was surveyed while the main module of the system was described. Implementation details of key technology were provided with code. Lastly, the trend perspective of the log audit system was also presented.

plate heat exchangers are widely used in industries due to their special characteristics, such as high thermal efficiency, small size, light weight, easy installation, maintenance, and cleaning. the purpose of this study is to consider the effect of depth, angle, and pitch of hemispheric chevrons on the convective heat transfer coefficient and pressure drop. in the simulation of the heat exchan...

aims: intellectual disability is a condition characterised by the inability of a person to undertake normal psychological activities. the purpose of this study was to systematically review the intellectual disability in children and discuss the implications of different environmental and genetic factors, which describe particular categories of intellectual disable cases. information & methods: ...

mitochondrial disorders (mids) require biochemical or genetic investigations for being diagnosed. in some cases, however, the diagnosis can be suspected upon the syndromic phenotype or upon clinical presentation and family history, as in the following case. the patient was a 74-year-old male admitted for worsening of pre-existing left-sided ptosis and ophthalmoparesis after a birthday party. th...

the study focused on the analysis of production and marketing constraints of tomato among rural farmers in talensi nabdam district of upper east region of ghana.a total of 100 respondents were interviewed using questionnaire. data was analyzed using descriptive statistics to describe the socio economic characteristics of the farmers and kendall’s coefficient of concordance was used to rank the ...

nigeria represents one of the paradoxes of development in which case the nation is rich but her people are poor. this study examines the rate of poverty among rural households in south western, nigeria. a random multistage sampling was employed for the study. ekiti and osun states were randomly selected from the six states in south-western nigeria. this was followed by random selection of two l...