in this paper, photovoltaic (pv) grid-connected inverter which is the core device in pv grid-connected system has been in depth research.an improved predictive current controller has been developed by the authors for single-phase grid-connected voltage source inverters (vsi).based on dsp tms320lf2407a, a 10 kw single-phase grid-connected inverter has been built in this paper.thus is aimed at us...

Digital image watermarking is mainly used in copyright protection. We propose block based approach for watermarking images with their own ROI. The algorithm divides the image into 8x8 blocks. DWT transform is applied on each block. The extracted LL of the computed DWT is obtained and DCT is applied on LL to obtain LL-DCT coefficients. The watermark is embedded by changing the sign of LL-DCT coe...

We here report the synthesis and characterization of a complex polymeric architecture based on a block copolymer with a cylindrical brush block and a single-chain polymeric nanoparticle block folded due to strong intramolecular hydrogen-bonds. The self-assembly of these constructs on mica surfaces was studied with atomic force microscopy, corroborating the distinct presence of block copolymer a...

BACKGROUND AND PURPOSE The "single-event" technique has been used as an alternative to the "block-trial" method to detect activation that may be accompanied by head motion. The purpose of this study was to compare the two methods for measuring activation in the sensorimotor cortex secondary to motor tasks. METHODS Functional MR imaging data were acquired from six participants as they performe...

Mexiletine as the first choice drug in myotonia treatment is a chiral sodium channel blocker clinically used in its racemic form. The phenolic structure of this drug, prompted us to design its novel calix[4]arene-based cluster in a chalice-shaped structure. Therefore, the present study reports the synthesis and in-vitro anti-myotonic activity of the chalice-shaped cluster of mexiletine...

OBJECTIVE Axillary plexus block is one of the widely used technique for upper extremity surgery. In this study, we retrospectively evaluated the single injection axillary plexus block technique we used in our rutine anesthesia practice, between August 2010-March 2011. METHODS Medical records of ASA I-III, 40 17 female and 23 male patients who underwent elective single injection axillary block...

Inside-out patches were excised from catfish rod or cone outer segments. Single channel and macroscopic currents were recorded from GMP-gated channels activated by 1 mM cGMP in low divalent buffered saline. Currents were blocked by the application of micromolar concentrations of l-cis-diltiazem to the cytoplasmic side of the patch. The concentration dependence of block indicated that a single m...

BACKGROUND The aim of this study was to compare the postoperative pain levels in patients undergoing osteosynthesis of the calcaneus with either a popliteal nerve block or an ankle block. METHODS A retrospective analysis of all consecutive patients undergoing operative fixation of a calcaneal fracture via a sinus tarsi approach between August 2012 and April 2017 in a single foot/ankle special...

In this paper, a mixed-integer linear programming model is proposed to integrate batch picking and distribution scheduling problems in order to optimize them simultaneously in an order picking warehouse. A tow-phase heuristic algorithm is presented to solve it in reasonable time. The first phase uses a genetic algorithm to evaluate and select permutations of the given set of customers. The seco...

This paper describes a second preimage attack on the CubeHash cryptographic one-way hash function. The attack finds a second preimage in less time than brute force search for these CubeHash variants: CubeHash r/b-224 for b > 100; CubeHashr/b-256 for b > 96; CubeHashr/b-384 for b > 80; and CubeHashr/b-512 for b > 64. However, the attack does not break the CubeHash variants recommended for SHA-3....