Photovoltaic-thermal (PVT) technology refers to the integration of a photovoltaic (PV) and a conventional solar thermal collector, representing the deep exploitation and utilization of solar energy. In this paper, we evaluate the performance of a solar PVT cogeneration system based on specific building energy demand using theoretical modeling and experimental study. Through calculation and simu...

In recent years, with the development of photovoltaic system and photo-thermal system technology, hybrid photovoltaic-thermal (PVT) technology has been a breakthrough in many aspects. This paper describes the movable hybrid PVT system from the aspects of appearance structure, energy flow, and control circuit. The system is equipped with rolling wheels and the simulated light sources also can be...

The 10 min psychomotor vigilance task (PVT) is commonly used in laboratory studies to assess the impact of sleep loss, sustained wakefulness, and/or time of day on neurobehavioral performance. In field settings, though, it may be impractical for participants to perform a test of this length. The aim of this study was to identify a performance measure that is sensitive to the effects of fatigue ...

BACKGROUND Portal vein thrombosis (PVT) has been mentioned as a potential obstacle to liver transplantation (LTx). OBJECTIVE To review the impact of PVT on orthotopic liver transplant (OLT) outcome. METHOD Between January 2006 and April 2009, 440 OLT were performed in Shiraz Transplant Unit of whom, 35 (7.9%) cases had old PVT with recanalization. Data were retrospectively collected regardi...

INTRODUCTION Portal vein thrombosis (PVT) is a relatively uncommon complication after abdominal surgery. CASE REPORT We report an even more unusual case of PVT 10 days after an uncomplicated laparoscopic cholecystectomy, believed to be only the fourth reported case in the literature of this rare complication. CONCLUSION Albeit extremely rare, PVT should be included in the differential diagn...

Background Portal vein thrombosis (PVT) is one of the most common causes of extrahepatic portal hypertension in children, which may follow neonatal umbilical vein catheterization. The incidence rates of catheter-related PVT, in infants and children vary in different studies. This study aimed to determine PVT incidence in the children under 3 years old with a history of neonatal umbilical vein c...

BACKGROUND/AIMS Prognostic scores currently used in cirrhotic patients do not include thrombotic risk factors (TRFs). Predicting factors of portal vein thrombosis (PVT) development are still unknown. We wanted to describe TRFs as a function of liver disease severity using the MELD score and assess the role of local and systemic TRFs as predictors of PVT development in cirrhotic patients. METH...

Atrial fibrillation is a serious clinical problem, which is associated with systemic thrombosis such as cerebral infarction. Pulmonary vein myocardiumpromotes andmaintains atrial fibrillation. Catheter ablation is done to cure atrial fibrillation to cut down the current flow from pulmonary vein myocardium. Although pulmonary vein thrombi (PVT) are thought to be a rare complication of certain tu...

The study investigated the thermal performance of a photovoltaic (PVT) collector with twisted absorber tube and nanoparticle-enhanced phase change material (nano-PCM). PVT consisted tubes, container filled nano-PCM, (PV) panel. To assess its efficiency, five different configurations were tested using an indoor solar simulator. analyzed as follows: (a) unenhanced PV panel, (b) circular tubes (C-...

BACKGROUND Treatment of portal vein thrombosis (PVT) in patients with liver cirrhosis is not well established. AIM We intended to assess the safety and efficacy of low molecular weight heparin (LMWH) to treat PVT in cirrhotic patients. STUDY All 39 patients diagnosed with non-neoplastic PVT and cirrhosis from June 2005 to December 2006 were evaluated for anticoagulation therapy (AT). PVT wa...