نتایج جستجو برای: pv strings

تعداد نتایج: 42217  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1389

در این رساله، بهینه سازی چند تابع هدف یک گردآورنده فتوولتائیک حرارتی (pv/t) خورشیدی انجام شده است. بدین منظور، یک تحلیل انرژی و اکسرژی مفصل برای محاسبه پارامترهای حرارتی و الکتریکی، راندمان انرژی کلی، مولفه های اکسرژی و راندمان اکسرژی یک گردآورنده pv/t نمونه انجام شده است. پارامترهای حرارتی و الکتریکی گردآورنده pv/t شامل دمای سلول خورشیدی، دمای سطح زیرین تدلار، دمای سیال خروجی، ولتاژ مدار باز، ...

Journal: :Designs 2023

This work intends to perform technical and 2E (economic & environmental) analysis for the proposed hybrid energy generating system a part load at SRM IST Delhi-NCR campus, India. The investigation has been done electricity generation hydrogen production through renewable sources, mainly solar energy. It is in line with Indian Government’s initiatives. meet electric demand of 400 kWh/day pea...

Journal: :Circulation 2003
Akira Hamabe Yuji Okuyama Yasushi Miyauchi Shengmei Zhou Hui-Nam Pak Hrayr S Karagueuzian Michael C Fishbein Peng-Sheng Chen

BACKGROUND The roles of complex muscle sleeve geometry and fiber orientation in the pulmonary veins (PVs) in wave-front propagation are poorly understood. METHODS AND RESULTS We mapped the left superior PV (LSPV, n=7) and left inferior PV (LIPV, n=4) of dogs with 420 bipolar electrodes (1-mm resolution) and performed detailed histological examination. In the anterior LSPV-left atrial (LA) jun...

Journal: :Circulation. Arrhythmia and electrophysiology 2013
Jim W Cheung Frank S Lin James E Ip Seth R Bender Faisal K Siddiqi Christopher F Liu George Thomas Steven M Markowitz Bruce B Lerman

BACKGROUND Adenosine can unmask dormant pulmonary vein (PV) conduction after PV isolation. Adenosine can also induce ectopy in electrically silent PVs after isolation, possibly via activation of autonomic triggers. We sought to identify the implications of adenosine-induced PV ectopy for atrial fibrillation (AF) recurrence after PV isolation. METHODS AND RESULTS A total of 152 patients (age, ...

2009
H. I. Cho S. M. Yeo C. H. Kim V. Terzija Z. M. Radojević

-This paper presents a steady-state model of a gridconnected photovoltaic (PV) system using Electromagnetic Transient Program (EMTP) MODELS. Recently the PV system has been introduced in power systems. The previous PV generation was used only to supply small loads or for home use. Nowadays, installations of grid-connected PV systems are increasing due to several advantages compared to standalon...

2015
Jinsung Park Dong-Gi Lee Beomseok Suh Sung Yong Cho In Ho Chang Sung Hyun Paick Hyung-Lae Lee

We aimed to determine normal reference ranges for prostate volume (PV) and annual PV change rate in a Korean nationwide screening population. Data from men who underwent a routine health check-up were collected from 13 university hospitals. The cohort comprised men aged ≥40 yr who had undergone 2 or more serial transrectal ultrasonographies. Men with initial PV>100 mL; serum PSA level>10 ng/mL;...

2011
Ben Hoen Ryan Wiser Peter Cappers Mark Thayer

The market for photovoltaic (PV) energy systems is expanding rapidly in the U.S. Almost 100,000 PV systems have been installed in California alone, more than 90% of which are residential. Some of those “PV homes” have sold, yet little research exists estimating if those homes sold for significantly more than similar non-PV homes. A clearer understanding of these effects might influence the deci...

2016
Trine A. Knudsen Robert Skov Andreas Petersen Anders R. Larsen Thomas Benfield

BACKGROUND Panton-Valentine leucocidin is a Staphylococcus aureus virulence factor encoded by lukF-PV and lukS-PV that is infrequent in S aureus bacteremia (SAB), and, therefore, little is known about risk factors and outcome of lukF-PV/lukS-PV-positive SAB. METHODS This report is a register-based nationwide observational cohort study. lukF-PV was detected by polymerase chain reaction. Factor...

Journal: :Journal of cardiovascular electrophysiology 2005
Jun Dong Chandrasekhar R Vasamreddy Vinod Jayam Darshan Dalal Timm Dickfeld Zayd Eldadah Glenn Meininger Henry R Halperin Ronald Berger David A Bluemke Hugh Calkins

INTRODUCTION There are currently no studies systematically evaluating pulmonary vein (PV) stenosis following catheter ablation of atrial fibrillation (AF) using the anatomic PV ablation approach. METHODS AND RESULTS Forty-one patients with AF underwent anatomic PV ablation under the guidance of a three-dimensional electroanatomic mapping system. Gadolinium-enhanced magnetic resonance (MR) ima...

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