We consider compressed sensing of piecewise constant signals, which have sparse gradients and arise frequently from problems of practical interests. We use total variation minimization to recover such signals from a small number of measurements. We establish the proof for the performance guarantee of total variation (TV) minimization in recovering one-dimensional signal with sparse gradient sup...

In this paper we propose an efficient method for solving the spherically constrained homogeneous polynomial optimization problem. The new approach has the following three main ingredients. First, we establish a block coordinate descent type search method for nonlinear optimization, with the novelty being that we only accept a block update that achieves the maximum improvement, hence the name of...

Introduction: Work-family conflict is a common problem among pre-hospital emergency technicians. The present study investigates the effects of applying time management skills on family-work conflict and work-family enrichment in pre-hospital emergency technicians. Methods: In this quasi-experimental study, eight emergency bases located in Birjand, Iran, were divided into two blocks: block A a...

alkaline hydrolysis of ethyl acetate is essentially an irreversible and second order reaction. industrial importance of the reaction product, sodium acetate, necessitate for process improvement in terms of maximum conversion and economical usage of raw materials. statistical design of experiments was utilized to enhance conversion in both batch and plug flow reactors.a full two level factorial ...