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Wheelchair (hydrogen)
A motorized wheelchair, powerchair, electric wheelchair or electric-powered wheelchair (EPW) is a wheelchair that is propelled by means of an electric motor (usually using differential steering) rather than manual power. Motorized wheelchairs are useful for those unable to propel a manual wheelchair or who may need to use a wheelchair for distances or over terrain which would be fatiguing in a manual wheelchair. They may also be used not just by people with 'traditional' mobility impairments, but also by people with cardiovascular and fatigue-based conditions. History An electrically propelled tricycle was developed by the R.A. Harding company in England in the 1930s. The electric-powered wheelchair was invented by George Klein who worked for the National Research Council of Canada, to assist injured veterans after World War II. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pride Jazzy Select Power Chair 001
Pride is defined by Merriam-Webster as "reasonable self-esteem" or "confidence and satisfaction in oneself". A healthy amount of pride is good, however, pride sometimes is used interchangeably with "conceit" or "arrogance" (among other words) which are negative. Oxford defines it as "the quality of having an excessively high opinion of oneself or one's own importance." This may be related to one's own abilities or achievements, positive characteristics of friends or family, or National pride, one's country. Richard Taylor (philosopher), Richard Taylor defined pride as "the justified Self-love, love of oneself", as opposed to false pride or narcissism. Similarly, St. Augustine defined it as "the love of one's own excellence", and Meher Baba called it "the specific feeling through which egoism manifests." Philosophers and social psychology, social psychologists have noted that pride is a complex secondary emotion which requires the development of a sense of self and the mastery of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampere Hour
An ampere hour or amp hour (symbol: A⋅h or A h; often simplified as Ah) is a unit of electric charge, having dimensions of electric current multiplied by time, equal to the charge transferred by a steady current of one ampere flowing for one hour, or 3,600 coulombs. The commonly seen milliampere hour (symbol: mA⋅h, mA h, simplified as mAh) is one-thousandth of an ampere hour (3.6 coulombs). Use The ampere hour is frequently used in measurements of electrochemical systems such as electroplating and for battery capacity where the commonly known nominal voltage is dropped. A ''milliampere second'' (mA⋅s) is a unit of measurement used in X-ray imaging, diagnostic imaging, and radiation therapy. It is equivalent to a ''millicoulomb''. This quantity is proportional to the total X-ray energy produced by a given X-ray tube operated at a particular voltage. The same total dose can be delivered in different time periods depending on the X-ray tube current. To help e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobility Scooter
A mobility scooter is an electric vehicle and mobility aid mostly auxiliary to a power wheelchair but configured like a motorscooter. When motorized they are commonly referred to as a power-operated vehicle/scooter, or electric scooter. Non-motorized mobility scooters are less common, but are intended for the estimated 60% of wheelchair users who have at least some use of their legs. Whilst leg issues are commonly assumed to be the reason for using scooters, the vehicles are used by those with a wide range of conditions from spinal to neurological. Mobility scooters differ from power wheelchairs in that they are usually cheaper, somewhat easier to move across uneven ground, and are more customizable. These scooters are built for people who have trouble walking or getting around, but don't always need a power wheelchair. They are also used by people who do need a powerchair for intermediate distances or extended standing, or those not permitted to drive cars for medical reasons. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Health Service
The National Health Service (NHS) is the umbrella term for the publicly funded healthcare systems of the United Kingdom (UK). Since 1948, they have been funded out of general taxation. There are three systems which are referred to using the "NHS" name ( NHS England, NHS Scotland and NHS Wales). Health and Social Care in Northern Ireland was created separately and is often locally referred to as "the NHS". The four systems were established in 1948 as part of major social reforms following the Second World War. The founding principles were that services should be comprehensive, universal and free at the point of delivery—a health service based on clinical need, not ability to pay. Each service provides a comprehensive range of health services, free at the point of use for people ordinarily resident in the United Kingdom apart from dental treatment and optical care. In England, NHS patients have to pay prescription charges; some, such as those aged over 60 and certain state ben ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bock Otto SuperFour 1
Bock is a strong beer in Germany, usually a dark lager. Several substyles exist, including: *Doppelbock (''Double Bock''), a stronger and maltier version *Eisbock (''Ice Bock''), a much stronger version made by partially freezing the beer and removing the ice that forms *Maibock (''May Bock''), a paler, more hopped version generally made for consumption at spring festivals. Due to its lighter color, it is also referred to as Heller Bock; from German ''hell'' (bright, light in color). *Weizenbock (''Wheat Bock''), a wheat beer made from 40–60% wheat History The style now known as ''Bock'' was first brewed in the 14th century in the Hanseatic town of Einbeck in Lower Saxony. The style was later adopted in Bavaria by Munich brewers in the 17th century. Due to their Bavarian accent, citizens of Munich pronounced "Einbeck" as "ein Bock" ("a billy goat"), and thus the beer became known as "Bock". A goat often appears on bottle labels. Bock is historically associated with spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheelchair Cushion
Wheelchair cushions are cushions specifically designed to provide comfort and protection against injury for wheelchair users. They also aid in properly positioning the user in the correct posture. Wheelchair users are at great risk for pressure sores. A number of factors are included in the formation of these ulcers including: # Insufficient vascularization in areas of high pressure, typically under bony prominences. # The collection of sweat on the skin due to inadequate air flow. # The presence of local areas of elevated temperature. # Shear stresses on the skin. A number of studies point to interface pressure between the body and the seating surface as the primary contributor to the formation of pressure sores. In response, manufacturers have developed a number of wheelchair seat cushion alternatives. Over 200 models of wheelchair cushions were on the market as of 2001. Characteristics Various characteristics, combined with a number of cover material options, offer a my ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mind-controlled Wheelchair
A mind-controlled wheelchair is a mind-machine interfacing device that uses thought (neural impulses) to command the motorised wheelchair's motion. The first such device to reach production was designed by Diwakar Vaish, Head of Robotics and Research at A-SET Training & Research Institutes. The wheelchair is of great importance to patients with locked-in syndrome (LIS), in which a patient is aware but cannot move or communicate verbally due to complete paralysis of nearly all voluntary muscles in the body except the eyes. Such wheelchairs can also be used in case of muscular dystrophy, a disease that weakens the musculoskeletal system and hampers locomotion (walking or moving). History The technology behind brain or mind control goes back to at least 2002, when researchers implanted electrodes into the brains of macaque monkeys, which enabled them to control a cursor on a computer screen. Similar techniques were able to control robotic arms and simple joysticks. In 2009, resea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sip-and-puff
Sip-and-puff or sip 'n' puff (SNP) is assistive technology used to send signals to a device using air pressure by "sipping" (inhaling) or "puffing" (exhaling) on a straw, tube or "wand." It is primarily used by people who do not have the use of their hands. It is commonly used to control a motorized wheelchair by quadriplegics with very high injury to their spinal cord or people with ALS.{{cite web, url=http://atwiki.assistivetech.net/index.php/Alternative_wheelchair_control , title=Alternative wheelchair control - ATWiki , publisher=Atwiki.assistivetech.net , date= , accessdate=2011-11-04 Calibration and setup Devices that use SNP technology require specific amounts of air pressure to be "sipped" or "puffed" by the user. These amounts of pressure are typically denoted as a hard sip/hard puff or soft sip/soft puff, however other terminologies might exist. Note that the words "hard" and "soft" are relative to the user and depend on their breathing abilities. Typically, air pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joystick
A joystick, sometimes called a flight stick, is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. A joystick, also known as the control column, is the principal control device in the cockpit of many civilian and military aircraft, either as a centre stick or side-stick. It often has supplementary switches to control various aspects of the aircraft's flight. Joysticks are often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer. A popular variation of the joystick used on modern video game consoles is the analog stick. Joysticks are also used for controlling machines such as cranes, trucks, underwater unmanned vehicles, wheelchairs, surveillance cameras, and zero turning radius lawn mowers. Miniature finger-operated joysticks have been adopted as input devices for smaller electronic equipment such as mobile phones. Aviation Joystic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dry Cell
upLine art drawing of a dry cell: 1. brass cap, 2. plastic seal, 3. expansion space, 4. porous cardboard, 5. zinc can, 6. carbon rod, 7. chemical mixture A dry cell is a type of electric battery, commonly used for portable electrical devices. Unlike wet cell batteries, which have a liquid electrolyte, dry cells use an electrolyte in the form of a paste, and are thus less susceptible to leakage. The dry cell was developed in 1886 by the German scientist Carl Gassner, after development of wet zinc–carbon batteries by Georges Leclanché in 1866. A type of dry cell was also developed by the Japanese Sakizō Yai in 1887. History left, upDry cell battery by Wilhelm Hellesen 1890 Many experimenters tried to immobilize the electrolyte of an electrochemical cell to make it more convenient to use. The Zamboni pile of 1812 is a high-voltage dry battery but capable of delivering only minute currents. Various experiments were made with cellulose, sawdust, spun glass, asbestos fiber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wet Cell
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell. Primary (single-use or "disposable") batteries are used once and discarded, as the electrode materials are irreversibly changed during discharge; a common example is the alkaline battery used f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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