technical or architectural drawing‚ computer-aided design (CAD or CADD) is usually the choice for completing professional-looking drawings. CAD is a faster and more accurate design tool than hand-drawn (manual) drafting. Computers make printing and duplicating CAD drawings a simple task. Special features like 3-D capability‚ cutaways and zoom options enhance CAD drawings. Drawing Speed Computer-aided design requires CAD software and the click of a mouse to create shapes and lines
Premium Technical drawing Computer-aided design
Solar power is the conversion of sunlight into electricity. Sunlight can be converted directly into electricity using photovoltaics (PV)‚ or indirectly with concentrated solar power (CSP)‚ which normally focuses the sun’s energy to boil water which is then used to provide power. Other technologies also exist‚ such as Stirling engine dishes which use a Stirling cycle engine to power a generator. Photovoltaics were initially‚ and still are‚ used to power small and medium-sized applications‚ from the
Free Photovoltaics Solar cell Solar energy
hard and persistent an engineer should be to achieve something. James Watt is the person who impressed me most. Before I listened to our classmate’s speech about Watt and saw the video‚ I thought he just found how the hot steam from a kettle worked and nothing more. In my opinion‚ he was just a curious and lucky person good at observing things. However‚ after the class‚ I find out he is really somebody. Common stories about Watt do not tell how hard he was and how difficult
Premium Management Leadership Employment
A solar inverter‚ or PV inverter‚ converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into a utility frequencyalternating current (AC) that can be fed into a commercial electrical grid or used by a local‚ off-grid electrical network. It is a critical component in a photovoltaic system‚ allowing the use of ordinary commercial appliances. Solar inverters have special functions adapted for use with photovoltaic arrays‚ including maximum power point tracking and anti-islanding protection
Premium Photovoltaics Solar energy Solar power
Solar power: In fact‚ every minute‚ enough energy arrives at the Earth to meet our demands for a whole year - if only we could harness it properly. The Delhi Metro came to a standstill yet again on Tuesday afternoon after services were suspended for two hours due to collapse of the Northern Power Grid for the second consecutive day‚ causing inconvenience to commuters. As the power grid collapsed at around 1 pm‚ Delhi Metro trains stopped on tracks‚ some inside tunnels‚ due to no supply of power
Premium Light rail Rapid transit Direct current
Planets and moons in our solar system share many similar properties‚ but there are also many ways they are different. Some of the main differences come with the different geologic activity‚ composition‚ interior structure‚ magnetic field‚ and atmosphere that distinguish some planets and moons from others. The first way to separate the planets as far as their surfaces is breaking them into their two categories. The Jovian planets (Jupiter‚ Saturn‚ Uranus‚ Neptune) are primarily composed of gas and
Premium Solar System Planet Jupiter
Histopathalogical determination For microscopic evaluation liver tissues were fixed in neutral buffered formalin and embedded in paraffin‚ sectioned at 5 μm and subsequently stained with hematoxylin/eosin to see the architecture of hepatic tissue and inflammatory cell infiltration. Sirius red staining for fibrosis and Prussian blue staining for iron deposition were also done in liver sections. Sections were then studied and photographed under light microscope (Zeiss Axioscope) at 40 magnifications. Collagen deposition
Premium Ethanol Chemistry Acetic acid
basic device of a PV system is the PV cell. Cells may be grouped to form panels or arrays. The voltage and current available at the terminals of a PV device may directly feed small loads such as lighting systems and DC motors. More sophisticated applications require electronic converters to process the electricity from the PV device. These converters may be used to
Premium Photovoltaics Photovoltaic module Solar cell
CONSERVATION OF WATTS TOWER 1761-1765 East 107th Street Watts‚ Los Angeles‚ California Watts Towers Treatment Start: 1978 Treatment: Ongoing Frank Preusser‚ Senior scientist‚ LACMA Conservator: Sara Dorsch Type: Outdoor Yard Building Media: Concrete Structure Size: Use: Historic Site Owner: Cultural Affairs Department‚ Watts Towers Arts Center and tours The Watts Towers‚ Towers of Simon Rodia‚ or Nuestro Pueblo ("our town")‚ are within the Simon Rodia State Historic Park‚ in the Watts community
Premium United States Government Watts Riots
Savannah Hudon Mrs. White English IV 2 February 2014 (Intro) Solar Energy is an underrated renewable energy source. We should be looking to make advances to become more dependent on renewable energy sources such as solar energy. The more we rely on these new energy sources the more carbon dioxide‚ sulfur dioxide‚ and other greenhouse gases we could eliminate from the air which will help ensure a clean and safe environment for future generations. In addition‚ it could aid America to depend
Premium Solar cell Photovoltaics Energy development