A Delay-Locked Loop (DLL) with a modified charge pump circuit is proposed for generating high-resolution linear delay steps with sub-picosecond jitter performance and adjustable delay range. The small-signal model of the modified charge pump circuit is analyzed to bring forth the relationship between the DLL's internal control voltage and output time delay. Circuit post-layout simulation shows ...

Dear Sir, More than twenty years ago the Albers-Post scheme was proposed to describe the effects of ATP, ADP, Na, and K on transphosphorylation reactions carried out by Na, K-ATPase preparations. The scheme in its currently amplified version has been remarkably successful in accounting for the results of ion transport and transphosphorylation measurements, of physical and biochemical studies of...

conclusions intraperitoneal migration of a subfascially placed baclofen pump is a rare, yet serious complication, which has been reported only once in the literature. we advise neurosurgeons to have a low level of threshold in confirming the location of a baclofen pump with imaging and surgical exploration if necessary in order to avoid detrimental outcomes such as bowel perforation. case prese...

The use of pumps linked in parallel or series in large scale pipe systems is usually inevitable, to meet the required head and discharge. Transient flow occurs following a pump failure in a pump group as a result of variations in the flow rate. This research is an investigation about waterhammer caused by one or more pump-switch off in a pump group when they are connected in parallel. The opera...

CABG being one of the most common types cardiac surgery, lowers risk Myocardial Infarctions and patients can remain symptom free for as long 10-15 years. Though this surgery became more common, there are 2 methods performing CABG, they On-pump Off-pump techniques. Recent studies reveals several advantages technique than technique. So intention study was to analyze if is anyphysiological signifi...

AIMS To assess the benefit of off-pump coronary surgery stratified by the pre-operative risk profile. METHODS AND RESULTS Prospective and multicentric cohort study. All consecutive patients undergoing a first coronary bypass procedure between November 2001 and November 2003 were potentially eligible. Pre-operative EuroSCORE and in-hospital outcomes were prospectively collected using strictly ...

Routine prophylaxis for venous thromboembolic disease after total hip replacement (THR) is recommended. Pneumatic compression with foot pumps seems to provide an alternative to chemical agents. However, the overall number of patients investigated in randomised clinical trials has been too small to draw evidence-based conclusions. This randomised clinical trial was carried out to compare the eff...

INTRODUCTION- Cardiovascular disease has emerged as a major health burden worldwide with coronary artery disease [CAD] causing highest mortality and morbidity. Coronary revascularization is the preferred treatment for patients with multivessel CAD. Based on the application of cardiopulmonary bypass [CPB], Coronary revascularization can be on-pump [OPCAB] or off-pump [CABG].The CPB is known to h...