Covert breathing system failure

Study on Airspace Covert Communication Algorithm of Covert Communication System

Based on the security of information transmission through network in the information society, the paper puts forward covert communication technology which is more reliable than the prior encryption algorithm, analyzes channel covertness and information hiding of covert communication technology based on spread-spectrum communication technology, and establishes a covert communication system inclu...

A Web Based Covert File System

We present the idea of a web based covert file system, CovertFS. This file system allows a user to store files covertly on media sharing websites while guaranteeing confidentiality and plausible deniability regarding the existence of the files. Further, it allows for selective and covert sharing of these files with other users. CovertFS can be built on top of any web based media sharing service...

Covert Robotics: Covert Path Planning

T s s a target itself. Another example is to guard a secured environment, where it is important to be covert as well as overt at the same time, in this way the chances are higher for the robot to see an intruder before the opposite happens. A covert robot may be used as well for hostage rescue, for example by sending an insect size covert robot with a camera to the hostage area to send images t...

Sleep-Disordered Breathing in Patients with Heart Failure: An Update

Breathing disorders in congestive heart failure: gender, etiology and mortality.

We investigated the relationship between sleep-disordered breathing (SDB) and Cheyne-Stokes respiration (CSR) while awake as well as mortality. Eighty-nine consecutive outpatients (29 females) with congestive heart failure (CHF; left ventricular ejection fraction, LVEF <45%) were prospectively evaluated. The presence of SDB and of CSR while awake before sleep onset was investigated by polysomno...