Post-extubation stridor and upper-airway obstruction are multifactorial in etiology and can occur as a result of laryngotracheal edema, intubation trauma, excessive cuff pressure with mucosal ulceration, and prolonged intubation with secondary inflammation and granuloma formation.1 Cuff leak tests (CLTs) were introduced in an attempt to predict post-extubation upper-airway obstruction and reduc...

Introduction: Methane is one of the most widely used gases in industries with a high flammability potential. This study aimed to evaluate the efficiency of ventilation systems installed on methane valve pits based on hazardous areas classification. Material and Methods: This study was implemented in a steel industry in Qom Province in 2019. The tools used in this study were a DELTA OHM pitot t...

Abstract The morphological marking that distinguishes conditionals are called “counterfactual” from those not, can also be found in other modal constructions, such as the expression of wishes and oughts. We propose to call it “X-marking”. In this article, we lay out desiderata for a successful theory X-marking make some initial informal observations. Much remains done.

The term “hacker” has been spread around the world and always considered as a threat when we use internet. We often hear hackers deface websites’ contents break into system to steal private confidential information, such account’s username password, credit card numbers others. This is definitely an unethical behavior of irresponsible people who mostly aims gain profit. However hacker, on contra...

Robustly extracting the features of lane markings under different lighting and weather conditions such as shadows, glows, sunset and night is the a key technology of the lane departure warning system (LDWS). In this paper, we propose a robust lane marking feature extraction method. By useing the characteristics of the lane marking to detect candidate areas. The final lane marking features are e...

The an efficient packet marking technique called swapnil’s packet marking and tracebacking (SPMT) technique that requires the amount of packets equal to the hop distance between the attack initiator and the server (destination) [1], which is less than 31 hops [3] [4], and can undergo certain kind of attacks like constant ID field value, and absence of router in the network chosen for marking. I...