INTRODUCTION Logistics management information system for health commodities remained poorly implemented in most of developing countries. To assess the status of laboratory logistics management information system for HIV/AIDS and tuberculosis laboratory commodities in public health facilities in Addis Ababa. METHODS A cross-sectional descriptive study was conducted from September 2010-January ...

In this article, the problem of exponential mean-square stability analysis is discussed for uncertain networked control systems expressed by a stochastic T-S fuzzy model. general, characteristics random occurrence multipath packet dropouts often exist in signal transmission network. For dealing with difficult point, dynamic output feedback strategy combining Bernoulli theory employed. Then, del...

Blood metabolites can be detected as low-mass ions (LMIs) by mass spectrometry (MS). These LMIs may reflect the pathological changes in metabolism that occur as part of a disease state, such as cancer. We constructed a LMI discriminant equation (LOME) to investigate whether systematic LMI profiling might be applied to cancer screening. LMI information including m/z and mass peak intensity was o...

A fundamental problem in systems biology consists of investigating robustness properties of genetic regulatory networks (GRNs) with respect to model uncertainty. This paper addresses this problem for GRNs where the coefficients are rationally affected by polytopic uncertainty, and where the saturation functions are not exactly known. First, it is shown that a condition for ensuring that the GRN...

This paper develops a novel formulation for quality of service (QoS) aware networked observer and PI/PID controller design in the presence specified rate random packet dropouts. We here derive stability conditions gains using asynchronous dynamical system (ADS) control (NCS) discrete time which yields set linear matrix inequalities (LMIs). The has been validated on two test-bench energy systems...

In this work, a robust fuzzy model predictive control (RFMPC) is designed for uncertain time-delay systems under input constraints with external disturbances. The proposed controller based on an augmented state space that includes the variables and output tracking error variable of system. As result, can guarantee convergence performance To ensure stability closed loop constrained time-delays s...

The FIB Instrument The basic functions of the FIB, namely, imaging and sputtering with an ion beam, require a highly focused beam. A consistent tenet of any focused beam is that the smaller the effective source size, the more current that can be focused to a point. Unlike the broad ion beams generated from plasma sources, high-resolution ion beams are defined by the use of a field ionization so...