We present moderate-resolution spectroscopy of extraplanar diffuse ionized gas (EDIG) emission in the edge-on spiral galaxy NGC 4302. The spectra were obtained with the SparsePak integral field unit ( IFU) at the WIYN Observatory. The wavelength coverage of the observations includes the [N ii] k6548, 6583, H , and [S ii] k6716, 6731 emission lines. The spatial coverage of the IFU includes the e...

This paper discusses the design and application of solar photovoltaics (PV) under aerospace conditions. The PV that is addressed Power Distribution Unit (PDU) for Canadian Space Agency’s (CSA) stratospheric balloon (STRATOS) program. PDU utilizes four 1 kWh Battery (BUs) have been sized with volume weight restrictions in mind. Without capacity to provide enough energy support multi-day missions...

High-resolution two and three-dimensional numerical experiments are used to study the manner in which advection of potential vorticity (PV) by frontal instabilities growing out of an initially symmetrically unstable flow or forced by destabilizing wind-forcing constrains the extreme minima in the PV to values near zero. The instabilities act as a PV pump, upwelling high PV water from the pycnoc...

This study presents experimental results on Photovoltaic-thermal (PVT) solar systems, the commercial photovoltaic (PV) panels used as solar absorbers in PVT collectors, which are amorphous and multi-crystalline silicon. Testing was done with outdoor experiments in the climate of Bangkok corresponding to energy consumption behavior of medium size Thai families. The experimental results show that...

Economic profit is the main incentive for PV-integrated residential prosumers, so energy management algorithms play a key role in these systems. The priority of conventional rule-based systems (REMS) to supply demand. As result, total amount sold distribution network, and consequently user such systems, not considerable. This study proposes smart system (SEMS) optimal grid-connected photovoltai...

This paper proposes a hybrid energy conversion system combing photo voltaic and wind turbine as a small-scale alternative source of electrical energy. The set-up consists of a photo-voltaic solar-cell array, a mast mounted wind generator, lead-acid storage batteries, a PWM inverter unit to convert DC power to AC power, IGBT and 3-phase loads. Thus Hybridizing solar and wind power sources togeth...

Although it is know since more than a century that neuronal activity is coupled to blood supply regulation, the underlying pathways remains to be identified. In the brain, neuronal activation triggers a local increase of cerebral blood flow (CBF) that is controlled by the neurogliovascular unit composed of terminals of neurons, astrocytes, and blood vessel muscles. It is generally accepted that...

AIMS Prior reports using pacing manoeuvres, demonstrated an up to 42% prevalence of residual pulmonary vein to left atrium (PV-LA) exit conduction after apparent LA-PV entry block. We aimed to determine in a two-centre study the prevalence of residual PV-LA exit conduction in the presence of unambiguously proven entry block and without pacing manoeuvres. METHODS AND RESULTS Of 378 patients, 1...