CD-ROMUn CD-ROM (de l'compact disc - read only memory », littéralement « disque compact - mémoire en lecture seule »), parfois écrit cédérom, est un disque optique utilisé pour stocker des données sous forme numérique destinées à être lues par un ordinateur ou tout autre lecteur compatible (salon, console de jeu). Le CD-ROM est une évolution du CD audio original. Grâce à leur capacité de stockage plusieurs centaines de fois supérieure à un prix similaire, les cédéroms supplantent les disquettes dans la distribution des logiciels et autres données informatiques.
Syndrome de la bandelette ilio-tibialeLe syndrome de la bandelette ilio-tibiale, ou du tractus ilio-tibial (STIT), appelé également syndrome de l’essuie-glace, ou encore tendinite du muscle tenseur du fascia lata, est un type de tendinite du genou. Sur la face externe de la cuisse, le muscle tenseur du fascia lata se termine par un tendon plat en forme de bandelette. Ce muscle s’étend depuis la crête iliaque jusqu’en haut du tibia où il s’insère. Lors de la marche il se déplace d’avant en arrière à la manière d’un essuie-glace.
Analog recordingAnalog recording is a category of techniques used for the recording of analog signals. This enables later playback of the recorded analog audio. Analog audio recording began with mechanical systems such as the phonautograph and phonograph. Later, electronic techniques such as wire and tape recording were developed. Analog recording methods store analog signals directly in or on the media. The signal may be stored as a physical texture on a phonograph record, or a fluctuation in the field strength of a magnetic recording.
Human legThe human leg is the entire lower limb of the human body, including the foot, thigh or sometimes even the hip or buttock region. The major bones of the leg are the femur (thigh bone), tibia (shin bone), and adjacent fibula. The thigh is between the hip and knee, while the calf (rear) and shin (front) are between the knee and foot. Legs are used for standing, many forms of human movement, recreation such as dancing, and constitute a significant portion of a person's mass.
ArthroscopieL'arthroscopie est une technique chirurgicale inventée au Japon et ramenée en Europe par le Henri Dorfmann. Elle permet de voir l'articulation, d'effectuer des prélèvements ou de réaliser de petits gestes chirurgicaux. Elle se pratique souvent sous anesthésie locorégionale ou générale, car pour réaliser une arthroscopie, il faut faire deux ou trois petites incisions. L'une sert à introduire l'arthroscope et l'autre un outil pour gratter, aspirer ou éclairer l'articulation.
Reconstructive surgeryReconstructive surgery is surgery performed to restore normal appearance and function to body parts malformed by a disease or medical condition. Reconstructive surgery is a term with training, clinical, and reimbursement implications. It has historically been referred to as synonymous with plastic surgery. In regard to training, Plastic Surgery is a recognized medical specialty and a surgeon can be a "board-certified" plastic surgeon by the American Board of Plastic Surgery.
Linkage (mechanical)A mechanical linkage is an assembly of systems connected to manage forces and movement. The movement of a body, or link, is studied using geometry so the link is considered to be rigid. The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called joints. A linkage modeled as a network of rigid links and ideal joints is called a kinematic chain. Linkages may be constructed from open chains, closed chains, or a combination of open and closed chains.
Optical disc driveIn computing, an optical disc drive is a disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs. Some drives can only read from certain discs, but recent drives can both read and record, also called burners or writers (since they physically burn the organic dye on write-once CD-R, DVD-R and BD-R LTH discs). Compact discs, DVDs, and Blu-ray discs are common types of optical media which can be read and recorded by such drives.
Kinematic diagramIn mechanical engineering, a kinematic diagram or kinematic scheme (also called a joint map or skeleton diagram) illustrates the connectivity of links and joints of a mechanism or machine rather than the dimensions or shape of the parts. Often links are presented as geometric objects, such as lines, triangles or squares, that support schematic versions of the joints of the mechanism or machine. For example, the figures show the kinematic diagrams (i) of the slider-crank that forms a piston and crank-shaft in an engine, and (ii) of the first three joints for a PUMA manipulator.
Erreur typeLerreur type d'une statistique (souvent une estimation d'un paramètre) est l'écart type de sa distribution d'échantillonnage ou l'estimation de son écart type. Si le paramètre ou la statistique est la moyenne, on parle d'erreur type de la moyenne. La distribution d'échantillonnage est générée par tirage répété et enregistrements des moyennes obtenues. Cela forme une distribution de moyennes différentes, et cette distribution a sa propre moyenne et variance.
CoudeThe elbow is the region between the upper arm and the forearm that surrounds the elbow joint. The elbow includes prominent landmarks such as the olecranon, the cubital fossa (also called the chelidon, or the elbow pit), and the lateral and the medial epicondyles of the humerus. The elbow joint is a hinge joint between the arm and the forearm; more specifically between the humerus in the upper arm and the radius and ulna in the forearm which allows the forearm and hand to be moved towards and away from the body.
Deviation (statistics)In mathematics and statistics, deviation is a measure of difference between the observed value of a variable and some other value, often that variable's mean. The sign of the deviation reports the direction of that difference (the deviation is positive when the observed value exceeds the reference value). The magnitude of the value indicates the size of the difference. Errors and residuals A deviation that is a difference between an observed value and the true value of a quantity of interest (where true value denotes the Expected Value, such as the population mean) is an error.
