stress amplitude - определение. Что такое stress amplitude
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Что (кто) такое stress amplitude - определение

IN AMPLITUDE MODULATION, THE AMPLITUDE (SIGNAL STRENGTH) OF THE CARRIER WAVE IS VARIED IN PROPORTION TO THE WAVEFORM BEING TRANSMITTED
Amplitude Modulation; Amplitude modulated; Double-sideband reduced carrier; Amplitude modulator; Amplitude-modulation detector; Amplitude-modulation radio; Amplitude-modulation; Amplitude Based; DSBAM; Clamp tube modulation; Heising modulation; Amplitude Modulated
  • alt=Sonogram of an AM signal, showing the carrier and both sidebands vertically
  • alt=Diagrams of an AM signal, with formulas
  • alt=Animation of audio, AM and FM modulated carriers.
  • alt=Graphs illustrating how signal intelligibility increases with modulation index, but only up to 100% using standard AM.
  • Illustration of amplitude modulation
Найдено результатов: 423
Adversity         
  • Schematic overview of the classes of stresses in plants
  • A diagram of the general adaptation syndrome model
  • Neurohormonal response to stress
  • border=darkgray}}
ORGANISM'S RESPONSE TO A STRESSOR SUCH AS AN ENVIRONMENTAL CONDITION OR A STIMULUS
General adaptation syndrome; Stress syndrome; Physiological stress; Adversity; General Adaptation Response; General adaptation response syndrome; Environmental stress; General Adaptation Syndrome; Stress out; Stress (medicine); Stress (medecine); General adaptative syndrome; Environmental stresses; Stress (medical); Stress (biological); Medical stress; Stress (physiology); Stress (Physiology); Stress (mental); Stress in humans; Biological stress; Biology of stress; Effects of chronic stress; Chronic stress and cardiovascular disease
·noun Opposition; contrariety.
adversity         
  • Schematic overview of the classes of stresses in plants
  • A diagram of the general adaptation syndrome model
  • Neurohormonal response to stress
  • border=darkgray}}
ORGANISM'S RESPONSE TO A STRESSOR SUCH AS AN ENVIRONMENTAL CONDITION OR A STIMULUS
General adaptation syndrome; Stress syndrome; Physiological stress; Adversity; General Adaptation Response; General adaptation response syndrome; Environmental stress; General Adaptation Syndrome; Stress out; Stress (medicine); Stress (medecine); General adaptative syndrome; Environmental stresses; Stress (medical); Stress (biological); Medical stress; Stress (physiology); Stress (Physiology); Stress (mental); Stress in humans; Biological stress; Biology of stress; Effects of chronic stress; Chronic stress and cardiovascular disease
¦ noun (plural adversities) difficulty or misfortune.
adversity         
  • Schematic overview of the classes of stresses in plants
  • A diagram of the general adaptation syndrome model
  • Neurohormonal response to stress
  • border=darkgray}}
ORGANISM'S RESPONSE TO A STRESSOR SUCH AS AN ENVIRONMENTAL CONDITION OR A STIMULUS
General adaptation syndrome; Stress syndrome; Physiological stress; Adversity; General Adaptation Response; General adaptation response syndrome; Environmental stress; General Adaptation Syndrome; Stress out; Stress (medicine); Stress (medecine); General adaptative syndrome; Environmental stresses; Stress (medical); Stress (biological); Medical stress; Stress (physiology); Stress (Physiology); Stress (mental); Stress in humans; Biological stress; Biology of stress; Effects of chronic stress; Chronic stress and cardiovascular disease
n. to face; overcome adversity
adversity         
  • Schematic overview of the classes of stresses in plants
  • A diagram of the general adaptation syndrome model
  • Neurohormonal response to stress
  • border=darkgray}}
ORGANISM'S RESPONSE TO A STRESSOR SUCH AS AN ENVIRONMENTAL CONDITION OR A STIMULUS
General adaptation syndrome; Stress syndrome; Physiological stress; Adversity; General Adaptation Response; General adaptation response syndrome; Environmental stress; General Adaptation Syndrome; Stress out; Stress (medicine); Stress (medecine); General adaptative syndrome; Environmental stresses; Stress (medical); Stress (biological); Medical stress; Stress (physiology); Stress (Physiology); Stress (mental); Stress in humans; Biological stress; Biology of stress; Effects of chronic stress; Chronic stress and cardiovascular disease
(adversities)
Adversity is a very difficult or unfavourable situation.
He showed courage in adversity.
= misfortune
N-VAR: oft in/of N
adversity         
  • Schematic overview of the classes of stresses in plants
  • A diagram of the general adaptation syndrome model
  • Neurohormonal response to stress
  • border=darkgray}}
ORGANISM'S RESPONSE TO A STRESSOR SUCH AS AN ENVIRONMENTAL CONDITION OR A STIMULUS
General adaptation syndrome; Stress syndrome; Physiological stress; Adversity; General Adaptation Response; General adaptation response syndrome; Environmental stress; General Adaptation Syndrome; Stress out; Stress (medicine); Stress (medecine); General adaptative syndrome; Environmental stresses; Stress (medical); Stress (biological); Medical stress; Stress (physiology); Stress (Physiology); Stress (mental); Stress in humans; Biological stress; Biology of stress; Effects of chronic stress; Chronic stress and cardiovascular disease
n.
Misfortune, calamity, affliction, trouble, suffering, woe, disaster, distress, misery, ill-luck, bad luck, broken fortunes, hard life, frowns of fortune, reverses of fortune, hard times, ill-fate, ills of life, a sea of troubles.
Compressive         
  • Idealized stress in a straight bar with uniform cross-section.
  • Illustration of typical stresses (arrows) across various surface elements on the boundary of a particle (sphere), in a homogeneous material under uniform (but not isotropic) triaxial stress. The normal stresses on the principal axes are +5, +2, and −3 units.
  • The stress across a surface element (yellow disk) is the force that the material on one side (top ball) exerts on the material on the other side (bottom ball), divided by the area of the surface.
  • Components of stress in three dimensions
  • Isotropic tensile stress. Top left: Each face of a cube of homogeneous material is pulled by a force with magnitude ''F'', applied evenly over the entire face whose area is ''A''.  The force across any section ''S'' of the cube must balance the forces applied below the section. In the three sections shown, the forces are ''F'' (top right), ''F''<math>\sqrt{2}</math> (bottom left), and ''F''<math>\sqrt{3}/2</math> (bottom right); and the area of ''S'' is ''A'', ''A''<math>\sqrt{2}</math> and ''A''<math>\sqrt{3}/2</math>, respectively. So the stress across ''S'' is ''F''/''A'' in all three cases.
  • Simplified model of a truss for stress analysis, assuming unidimensional elements under uniform axial tension or compression.
  • The ratio <math>\sigma = F/A</math> may be only an average stress. The stress may be unevenly distributed over the cross section (''m''–''m''), especially near the attachment points (''n''–''n'').
  • For stress modeling, a [[fishing pole]] may be considered one-dimensional.
  • Shear stress in a horizontal bar loaded by two offset blocks.
  • Glass vase with the ''[[craquelé]]'' effect. The cracks are the result of brief but intense stress created when the semi-molten piece is briefly dipped in water.<ref name=lamglass/>
  • A [[tank car]] made from bent and welded steel plates.
PHYSICAL QUANTITY THAT EXPRESSES INTERNAL FORCES IN A CONTINUOUS MATERIAL
Tensile stress; Physical stress; Normal stress; Tensible strength; Mechanical stress; Piola-Kirchhoff stress tensor; Piola–Kirchoff stress tensor; Stress, mechanical; Deviatorics tress; Compressive; Piola-Kirchhoff stress; Deviatoric; Extensional stress; Longitudinal stress; Stress (physics); Internal stresses; Internal stress; Octahedral shear stress; Piola–Kirchhoff stress tensor; N/m2; Stress path; Cauchy's tetrahedron; Cauchy tetrahedron; Piola-Kirchoff stress tensor
·adj Compressing, or having power or tendency to compress; as, a compressive force.
Stress fiber         
  • Rho Cascade - stress fiber formation
  • Three types of stress fibers: ventral stress fibers, transverse arcs, and dorsal stress fibers
ASPECT OF CELL STRUCTURE
Stress fibres; Stress fibre
Stress fibers are contractile actin bundles found in non-muscle cells. They are composed of actin (microfilaments) and non-muscle myosin II (NMMII), and also contain various crosslinking proteins, such as α-actinin, to form a highly regulated actomyosin structure within non-muscle cells.
Psychological stress         
  • A stressed woman waiting in line at a medical centre
  • Coping through [[laughter]]
PSYCHOLOGICAL FEELING OF STRAIN AND PRESSURE, THAT COULD INCREASE THE RISK OF STROKES, HEART ATTACKS, ULCERS, AND MENTAL ILLNESSES SUCH AS DEPRESSION AND AGGRAVATION OF A PRE-EXISTING CONDITION
Stress (psychology); Emotional stress; Mental stress; Stress relief; Stress (emotion); Stress Reliever; Stressfullness; Rui-katsu; Stress (psychological); Relieve stress; Stress Relief; Tension (psychological); Stressed Out (psychological); Causes of psychological stress; Physical effects of psychological stress; Social impact of psychological stress; Social effects of psychological stress
In psychology, stress is a feeling of emotional strain and pressure. Stress is a type of psychological pain.
Work & Stress         
JOURNAL
Work and stress; Work Stress; Work and Stress; Work & stress
Work & Stress is a quarterly peer-reviewed academic journal covering occupational health psychology and workplace health and safety. It is published by Taylor & Francis in association with the European Academy of Occupational Health Psychology.
Cauchy stress tensor         
  • Figure 2.2. Stress vector acting on a plane with normal unit vector '''n'''.<br /> '''A note on the sign convention:''' The tetrahedron is formed by slicing a parallelepiped along an arbitrary plane '''n'''. So, the force acting on the plane '''n''' is the reaction exerted by the other half of the parallelepiped and has an opposite sign.
  • Figure 4. Continuum body in equilibrium
  • Figure 2.1a Internal distribution of contact forces and couple stresses on a differential <math>dS</math> of the internal surface <math>S</math> in a continuum, as a result of the interaction between the two portions of the continuum separated by the surface
  • Figure 2.1b Internal distribution of contact forces and couple stresses on a differential <math>dS</math> of the internal surface <math>S</math> in a continuum, as a result of the interaction between the two portions of the continuum separated by the surface
  • Figure 6. Octahedral stress planes
  • Figure 2.4 Transformation of the stress tensor
TENSOR THAT DESCRIBES THE STATE OF STRESS AT A POINT INSIDE A MATERIAL
Deviatoric stress; Deviatoric stress tensor; Principal stress; Traction vector; Principal stresses; Octahedral normal stress; Euler-Cauchy stress principle; Cauchy's stress theorem; Cauchy's fundamental lemma; Stress vector; Euler–Cauchy stress principle
In continuum mechanics, the Cauchy stress tensor \boldsymbol\sigma, true stress tensor, or simply called the stress tensor is a second order tensor named after Augustin-Louis Cauchy. The tensor consists of nine components \sigma_{ij} that completely define the state of stress at a point inside a material in the deformed state, placement, or configuration.

Википедия

Amplitude modulation

Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to that of the message signal, such as an audio signal. This technique contrasts with angle modulation, in which either the frequency of the carrier wave is varied, as in frequency modulation, or its phase, as in phase modulation.

AM was the earliest modulation method used for transmitting audio in radio broadcasting. It was developed during the first quarter of the 20th century beginning with Roberto Landell de Moura and Reginald Fessenden's radiotelephone experiments in 1900. This original form of AM is sometimes called double-sideband amplitude modulation (DSBAM), because the standard method produces sidebands on either side of the carrier frequency. Single-sideband modulation uses bandpass filters to eliminate one of the sidebands and possibly the carrier signal, which improves the ratio of message power to total transmission power, reduces power handling requirements of line repeaters, and permits better bandwidth utilization of the transmission medium.

AM remains in use in many forms of communication in addition to AM broadcasting: shortwave radio, amateur radio, two-way radios, VHF aircraft radio, citizens band radio, and in computer modems in the form of QAM.