to make a formal application; to bring into use or operation
apply
to arrange in a particular form
configure
to have or hold within
contain
to describe the scope or meaning exactly
define
to give a detailed account in words
describe
to make firm or stable
establish
to take in as a part of a whole
include
to point out or show
indicate
to cause a process to begin
initiate
to carry out or fulfill
perform
to make available for use
provide
to come into possession of
receive
to formally ask for
request
to specify as compulsory
require
to state a requirement clearly and precisely
specify
to allow the use or operation of
support
resistor
resistance
R
ohms
inductor
inductance
H
henries
capacitor
capacitance
C
farads
voltage source
voltage
V
volts
current source
current
I
amperes
earth ground
terminal
connected series
connected parallel
Sound energy weakens as it passes through tissue because parts of it are reflected, scattered, absorbed, refracted or diffracted.
attenuation
has 5 components (reflection - refraction)
This is called an echo and the production and detection of echoes forms the basis of ultrasound. These occur at the boundary between two materials if a certain property of the materials is different
reflection
Not all echoes are reflected back to the probe. Some of it is sent in all directions in a non-uniform manner. The part that goes back to reach the transducer and generate images is called backscattering.
scattering
The sound energy soaked up by tissue contributes most to the weakening of an ultrasound wave in tissues.
absorption
The bending of a sound wave as it passes around tissue particles in its path.
diffraction
The change in the direction of a sound wave on being incident upon a tissue interface at an oblique angle.
refraction
The change in frequency or wavelength of a wave for an observer who is moving relative to the wave source.
Doppler Shift
The ability to resolve objects in the line of the ultrasound beam. Factors affecting this include Spatial Pulse Length (SPL) and frequency.
axial resolution
At 90° to the direction of the beam. Factors affecting this include width of the beam, distance from the transducer, frequency.
lateral resolution
Refers to the ability to detect that an object has moved. The number of frames generated per second (frame rate) determines this.
temporal resolution
The transducer focuses the ultrasound transmission to be as close to a flat plane as possible. It consists of tens to hundreds of scan lines.
beam
used when a company needs a solution but does not know what it is
request for proposal (RFP)
used when a company knows what it wants but needs information on how vendors would meet the requirements and/or how much it would cost
request for quotation (RFQ)
used when a company thinks they know what they want but need more information from the vendors
request for information (RFI)
contains explicit or detailed information on requirements, functions, features, performance
specification
a formal document that establishes uniform engineering or technical criteria, methods, processes and practices
standard
a set of exclusive rights granted to an inventor for a limited period of time in exchange for detailed public disclosure of an invention
patent
an assessment of the practicality of a proposed project or system
feasibility study
a written record or summary of empirical results
lab report
the official record and summary of the proceedings of a meeting
minutes
a book that explains how to do or operate something
manual
a text issued for distribution
publication
the algebraic sum of currents in a network of conductors meeting at a point is zero
Kirchhoff´s current law (KCL)
the directed sum of the potential differences around any closed loop is zero
Kirchhoff´s voltage law (KVL)
a closed electric circuit
loop
any point on a circuit where the terminals of two or more circuits elements meet
node
equal to the product of the circuit resistance and the circuit capacitance
RC time constant
DC voltage or current at a specified terminal of an active device with no input signal applied
operating point, bias point, quiesceent point, Q point
portion of a device´s circuit which supplies the quiescent current or voltage
bias circiut
an electrical circiut in which the continuity is broken so that the current does not flow
open circuit
a connection of comparatively low resistance is normally much greater
short circuit
a device for converting alternating current into direct current
recetifier
relationship between current and corresponding potential difference, typically shown as a graph
I-V curve, I-V characteristic
to increase the size or effect of something
amplify
to study something in a systematic and careful way
analyze
to set the initial operating conditions of an active device
bias
to describe the distinctive nature or features of
characterize
to put electricity into/to remove electricity from an electrical device such as a battery
charge/ discharge
to have something inside or include something as a part
to make or draw plans for something
design
to remove unwanted components or features from a signal
filter
to correspond in some essential respect
match
to represent a system by a set of concepts
model
to provide a low-impedance path between two nodes that should have different voltages
short
to provide something needed or wanted
supply
delivers oxygen and nutrients to tissues
(oben heart, unten blood vessels)
cardiovascular system
processes food for use by the body
(von oben nach unten: Stomach, Liver, Gall bladder, Large intestine, small intestine)
digestive system
secretes hormones, regulates bodily processes
(von oben nach unten: Pituitary gland, Thyroid gland, Pancreas, Adrenal gland ,Testes)
endocrine system
encloses internal body structures
(von oben nach unten: Hair, Skin, Nails)
integumentary system
returns fluid to blood, defends against pathogens
(von oben nach unten: Thymus, Lymph nodes, Spleen, Lymphatic vessels)
lymphatic system
enables movement, helps control temperature
(oben: Skeletal muscles, unten: Tendons)
muscular system
detects and processes sensory information
nervous system
produces sex hormones and gametes
(links: von oben nach unten: Epididymis, Testes)
(rechts: von oben nach unten: Mammary glands, Ovaries, Uterus)
reproductive system
delivers oxygen, removes carbon dioxide
(von oben nach unten: Nasal passage, Trachea, Lungs)
respiratory sytem
supports the body
(von oben nach unten: Cartilage, Bones, Joints)
skeletal system
removes wastes from blood and excretes them
(von oben nach unten: Kidneys, Urinanry bladder)
urinary system
maximum ac signal depature from it´s average value
amplitude
the amount used
consumption
cycle
all the steps in a process
departure from an expected value
devitation
the gap between two values
differential
how often per time something occurs
frequency
the value at the beginning of a process
input
goal or approximation and not the real value
nominal
the value at the end of a process
output
the maximum
peak
a length of time
period
a particular stage of advancement in a cycle
phase
how often something happens
rate
the relationship in amount between two things
ratio
verbs
noun
-
to boom
to come up
to double
to go up
to gain
to grow
to improve
to increase
to jump
to mount
to rise
to rocket
to shoot up
to skyrocket
to soar
to surge
to take off
to trend upward
to triple
a gain
a growth
a jump
a rise
a surge
an improvement
an increase
an upsurge
an upturn
an upward trend
to collapse
to come down
to crash
to decline
to decrease
to drop
to fall
to fall off
to go down
to halve
to plummet
to plunge
to shrink
to slip
to slump
to trend downward
a decline
a decrease
a downturn
a downward trend
a drop
a fall
a plummet
a slump
to flatten out
to hold steady
to level off
to reach a plateau
to remain constant
to remain stable
to remain the same to stabilize to stagnate to stay at the same level
a leveling off
a plateau
a stable period
to be unstable
to change (from)
to fluctuate (between)
to vacillate
to waver
a fluctuation
a period of change
a period of instability
to falter
to peak
to reach a peak
to reach a high mark to top out
a peak
a high mark
to bottom out
to climb back
to dip
to pick up
to reach a low point to recover
a dip
a trough
a low point
adjective and adverbs
abrupt, abruptly
considerable, considerably
constant, constantly
dramatic, dramatically
gentle, gently
gradual, gradually
large
marked, markedly
minimal, minimally
moderate, moderately
quick, quickly
rapid, rapidly
sharp, sharply
significant, significantly
slight, slightly
slow, slowly
small
steady, steadily
steep, steeply
substantial, substantially
sudden, suddenly
Qualifers
roughly / approximately / nearly / around / about
exactly / precisely
significantly / substantially
over / more than / greater than
under / less than / fewer than
Prepositons
Levels: In a graph, values move to a level or from a level. They begin, end, or remain at a level:
The value rose from x to y.
Prices decreased from €2 to €1
Production started at 60 units and finished at 80 units.
Efficiency remained at 85 percent.c
Amount of change: In a graph, values change by the difference between two numbers:
Demand increased by 15 percent
Output declined by 3000 units
Time: from, to, in, between, by
Prices dropped steadily from July to November.
In 2018, profits doubled in just two months.
Between January and December, conditions remained stable.
The value is expected to decline considerably by next year
induced by time-varying magnetic fields
eddy current
putting energy into the spin system of nuclei and bringing them into a higher energy state
excitation
designed to carry current so that the magnetic field will be stronger in some locations than others
gradient coil
component of the net magnetization vector in the direction of the static magnetic field
longitudinal magnetization
uses ferromagnetic materials to generate a field between the two poles, requires no electrical power or cooling
permanent magnet
after excitation, the spins will tend to return to their equilibrium distribution with both longitudinal and transverse time constants
relaxation time
A large amplitude vibration in a mechanical or electrical system caused by a relatively small periodic stimulus with a frequency at or close to a natural frequency of the system
resonance
the term describing the planar image selection region
slice
the intrinsic angular momentum of the nucleus, responsible for magnetic moment
spin
component of the net magnetization vector at right angles to the main magnetic field
transverse magnetization
an electronic circuit which performs operations on some external data source
processor
the branch of physics that deals with the emission and effects of electrons, and the equipment based on these effects
electronics
growth by the rapid multiplication of parts
proliferation
a small, monolithic microchip that contains a large number of electrical connections
intregrated circuit
a standard procedure that is followed mindlessly
lockstep
the most advanced position in an area of activity
leading edge
the quantity per unit volume, area, or length
density
the path followed by a body moving through space
trajectory
to conform to
abide by
to pack tightly
cram
to predict by projecting known data
extrapolate
used to display the lifetime of a population of products
bathtub curve
accumulates material on a substrate from gas passing over it
chemical vapor deposition
thin covering that is applied to the surface of an object
coating
the practice of tracking whether a product meets regulations or standards
compilance
process of building up a thin layer of residue onto a surface
deposition
chemically removing layers from the surface of a wafer
etching
process of taking in a substance or form of energy
entity capable of carrying an electric charge
carrier
reduction of a principal element
depletion
charged particle motion in response to an applied electric field
drift
net movement of particles from an area of high to an area of low concentration
diffusion
foreign atoms added to a semiconductor to modify the net charge carriers
dopant
transition from a low energy state to a high energy state
return of a perturbed system into equilibrium
relaxation
voltage applied across a p-n junction in the direction of easy current flow
forward bias
voltage applied across a p-n junction in the direction of little or no current flow
reserve bias
theoretical positive charge carrier to explain the deficiency of an electron
hole
subatomic negative charge carrier
electron
an undoped semiconductor
intrinsic
a doped semiconductor
extrinsic
semiconductor with more holes than electrons
p-type
semiconductor with more electrons than holes
n-type
to produce and discharge something
emit
to drive back away
repel
to devitate from an original trajectory
scatter
Last changeda year ago