نتایج جستجو برای: single block

تعداد نتایج: 1013758  

2014
R. Priya Darshini

Signal Classification and parameter estimation of cyclostationary signal is an vital issue for various security applications like civil and military applications such as LTE, spectrum detection, and spectrum maintaining in cognitive radio systems. Cyclostationary signals is one, that exhibits a statistical property to categories whether the signal is belong to be a probabilistic approach or a d...

Journal: :Anaesthesia, pain & intensive care 2022

Background: Epidural block is an effective route for analgesia in spine surgeries. Erector spinae plane (ESPB) a field that showed promising results various We compared both procedures surgery, regarding postoperative pain, the time to first analgesic request, total morphine consumption, perioperative hemodynamics, and any adverse events.
 Methodology: Sixty-seven patients were enrolled th...

2012
Slávka JADLOVSKÁ

The purpose of this paper is to present the design of a complete control strategy for the classical and rotary single inverted pendulum system. The design, which involves swing-up and stabilization of both systems, is based on function blocks and GUI tools from the Inverted Pendula Modeling and Control, a Simulink block library developed by the author of the paper. Keywords—classical single inv...

2001
G. Gritsch H. Weinrichter M. Rupp

An astonishing difference in the performance of non-orthogonal space–time block codes (NOSTBCs) on wireless multiple-input= multiple-output (MIMO) systems compared to one-dimensional block codes operating on single-input=single-output (SISO) channels is derived. Using NOSTBCs, single symbol errors are no longer the only dominating error types, but multiple symbol errors can dominate the error p...

2015
Cristina Ciochina Damien Castelain David Mottier Hikmet Sari

A full-diversity space-frequency block code (SFBC) for Single-Carrier Frequency-Division Multiple Access (SC-FDMA) systems is presented. The code is designed for 2 transmit antennas and preserves the low envelope fluctuations of SC signals. We prove the good performance of the proposed scheme over multiple-input multiple-output (MIMO) channels, both in static and in high-speed mobility scenarios.

Journal: :IACR Cryptology ePrint Archive 2010
Tao Xie Dengguo Feng

So far, all the differential attacks on MD5 were constructed through multi-block collision method. Can collisions for MD5 be found using just a single block of message (i.e. 512-bit)? This has been an open problem since the first 2-block collision attack was given. However, a paper titled “How To Find Weak Input Differences For MD5 Collision Attacks” (Cryptology ePrint Archive (2009/223), http:...

2002
Zhengdao Wang Xiaoli Ma Georgios B. Giannakis

We consider the class of linear precoded (LP) orthogonal frequency division multiplexing (OFDM) systems. We first show that single-carrier zero-padded transmissions, termed ZP-only, can be viewed as a special case of LP-OFDM. By resorting to the pair-wise error probability analysis, we establish the optimality of ZP-only among the LP-OFDM class in terms of its performance in random frequency-se...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Kai Zhang Chao-Kai Chou Xiaofeng Xia Mien-Chie Hung Lidong Qin

A unique live-cell printing technique, termed "Block-Cell-Printing" (BloC-Printing), allows for convenient, precise, multiplexed, and high-throughput printing of functional single-cell arrays. Adapted from woodblock printing techniques, the approach employs microfluidic arrays of hook-shaped traps to hold cells at designated positions and directly transfer the anchored cells onto various substr...

2009
Mridul Nandi

The CBC-MAC or cipher block chaining message authentication code, is a well-known method to generate message authentication codes. Unfortunately, it is not forgery-secure over an arbitrary domain. There are several secure variants of CBC-MAC, among which OMAC is a widely-used candidate. To authenticate an s-block message, OMAC costs (s+1) block cipher encryptions (one of these is a zero block e...

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