Study sets matching "compression"

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Study sets matching "compression"

Compression
Compression
Lossy Compression
Lossless Compression
JPG or JPEG - Joint Photographic Exper…
Reduction in file size to reduce download times and storage r…
It reduces a file by permanently eliminating certain informat…
Every single bit of data that was originally in the file rema…
This is a compressed bitmap image file format commonly used f…
Compression
Reduction in file size to reduce download times and storage r…
Lossy Compression
It reduces a file by permanently eliminating certain informat…
27 terms
Compression
Compression
Piston
Piston ring
Piston skirt
...
Compression
...
Piston
Compression
Compression Ring
Piston
Piston Rings
Piston Skirt
Compression Ring
Piston
Compression
Threshold
Ratio
Compression Ratio of 6:1
Make-up Gain
Sets a point in Decibels of how loud the signal has to be bef…
Indicates how much compression is applied relative to the inp…
An input signal that crosses the threshold by 6db will be att…
Allows you to boost the compressed signal. This control is ve…
Threshold
Sets a point in Decibels of how loud the signal has to be bef…
Ratio
Indicates how much compression is applied relative to the inp…
129 terms
Compression *******
what is compression?
what is compression used for?
how does compression work?
what types of compression exist?
mechanical force that increases external pressure on the body…
-control of peripheral edema... -prevent DVT... -healing of venous…
-fluid balance is improved ... -increase hydrostat pressure in i…
-static... -intermittent
what is compression?
mechanical force that increases external pressure on the body…
what is compression used for?
-control of peripheral edema... -prevent DVT... -healing of venous…
27 terms
Compression
Compression
Piston
Piston Rings
Piston Skirt
Compression
Piston
Compression
Compression
piston rings
Piston
Piston Skirt
Compression
piston rings
7 terms
Compression
Compression
Ratio
Threshold
Attack
When a sound is too loud, the compressor kicks in to reduce t…
Determines how much the volume will be reduced by. ... EX:(Soun…
The point in which the compressor will kick in.... EX:(If we se…
How quickly the compressor engages and reduces the volume of…
Compression
When a sound is too loud, the compressor kicks in to reduce t…
Ratio
Determines how much the volume will be reduced by. ... EX:(Soun…
17 terms
Compression
compression is very widely used
based on two fundamental principles
character
strings
jpeg, png, gif for single images;... mpeg1, 2, 4, 7 (21) for vid…
spatial coherence and temporal coherence:... - similarity with s…
basic data unit in the input stream represents byte, bit, etc.
sequences of characters.
compression is very widely used
jpeg, png, gif for single images;... mpeg1, 2, 4, 7 (21) for vid…
based on two fundamental principles
spatial coherence and temporal coherence:... - similarity with s…
8 terms
Compression
Compression
Lossy Compression
Lossless Compression
JPG or JPEG - Joint Photographic Exper…
Reduction in file size to reduce download times and storage r…
It reduces a file by permanently eliminating certain informat…
Every single bit of data that was originally in the file rema…
This is a compressed bitmap image file format commonly used f…
Compression
Reduction in file size to reduce download times and storage r…
Lossy Compression
It reduces a file by permanently eliminating certain informat…
compression
compression
uses
effects of external compression
increased THP
the application of mechanical force that increases external p…
improve fluid balance... modify scar tissue formation
improved venous and lymphatic circulation ... limits the shape a…
limit outflow of fluid from vessels... limits pooling
compression
the application of mechanical force that increases external p…
uses
improve fluid balance... modify scar tissue formation
16 terms
Compression
Physical Principles
Compression uses
Goals/Indications
Precautions
External pressure to the body resulting in ... - tissue compress…
- control or minimizes edema, lymph damage, amputations... - art…
- Amputation... - decrease chronic edema... - traumatic edema... - lym…
- impaired sensation... - malignancy... - hypertension... - obstructed…
Physical Principles
External pressure to the body resulting in ... - tissue compress…
Compression uses
- control or minimizes edema, lymph damage, amputations... - art…
29 terms
Compression
Effects of External Compression
Improves Venous and Lymphatic Circulat…
Limits Shape and Size of Tissue
Increases Tissue Temperature
- Improves venous and lymphatic circulation... - Limits the shap…
- Increases external hydrostatic pressure... - Intermittent comp…
Exploited when compression garments are... used after amputation…
May increase activity of temperature-sensitive... collagenases t…
Effects of External Compression
- Improves venous and lymphatic circulation... - Limits the shap…
Improves Venous and Lymphatic Circulat…
- Increases external hydrostatic pressure... - Intermittent comp…
Compression
Pathophysiology of edema
Normal transports
Types of edema
Contraindications
travels through body in 3 major pathways: circulatory and lym…
2-2.5 liters of fluid per day and 80-200 grams of protein bac…
Acute, venous, and lymphatic
Malignancy, DVT, unstable or acute fracture, heart failure, i…
Pathophysiology of edema
travels through body in 3 major pathways: circulatory and lym…
Normal transports
2-2.5 liters of fluid per day and 80-200 grams of protein bac…
Compression
Goals of Compression
Intermittent Compression units assist...
Pneumatic Compression
Cryocompression
1) Prevent secondary injury by preventing edema formation.... 2)…
in venous and lymphatic drainage by creating a pressure gradi…
Appliance filled with air.
Appliance filled with chilled water.
Goals of Compression
1) Prevent secondary injury by preventing edema formation.... 2)…
Intermittent Compression units assist...
in venous and lymphatic drainage by creating a pressure gradi…
compression
Compression
The controls you are given to set up a…
Threshold
Ratio
is the process of lessening the dynamic range between the lou…
Threshold, ratio, attack, knee,release, makeup gain, output
how loud the signal has to be before compression is applied.
how much compression is applied. For example, if the compress…
Compression
is the process of lessening the dynamic range between the lou…
The controls you are given to set up a…
Threshold, ratio, attack, knee,release, makeup gain, output
Compression
FourPress
FourFlex
Coban 2
EconoPaste Unna Boot
Hartmann-Conco
Medline
3M
Hartmann-Conco
FourPress
Hartmann-Conco
FourFlex
Medline
10 terms
Compression
Therapeutic effects
Indications
Contraindications
Compression bandages
• control of peripheral edema... • Management of scar formation…
• Edema... • Hypertrophic scaring... • Lymphedema... • New residual li…
• Circulatory obstruction... • DVT... • Heart failure... • Infection o…
• Increase external pressure on body part by exerting resting…
Therapeutic effects
• control of peripheral edema... • Management of scar formation…
Indications
• Edema... • Hypertrophic scaring... • Lymphedema... • New residual li…
34 terms
Compression
Compression
Effects of Compression
Tissue Fluid balance
Edema
Mechanical Force... Increases external pressure on the vessels…
Improved venous and lymphatic circulation: fluid pushed back…
Hydrostatic pressure: fluid on walls of vessels. BP decrease=…
Healthy diet... Working Vascular system... Muscular system : pushes…
Compression
Mechanical Force... Increases external pressure on the vessels…
Effects of Compression
Improved venous and lymphatic circulation: fluid pushed back…
Compression
What does compression do?
Parameters of compression
Threshold
Ratio
-level the dynamics ... -color the sound (tonal control) ... -balan…
Threshold, Ratio, Attack, Release, Makeup Gain
the point at which the compression starts working
amount of compression that will take place - (balance between…
What does compression do?
-level the dynamics ... -color the sound (tonal control) ... -balan…
Parameters of compression
Threshold, Ratio, Attack, Release, Makeup Gain
COMPRESSION
Reasons for use
Is used to
lossy
lossy is suited for
sometimes the files are too big
reduce files and change various attributes of an image, e.g.:…
Some image data is 'thrown away' when the image is saved, dat…
image... video... and sound data... e.g.: JPEG (image) has a fairly sm…
Reasons for use
sometimes the files are too big
Is used to
reduce files and change various attributes of an image, e.g.:…
6 terms
Compression
Contraindications of compression
Indications for compression
UE setting for pressure
LE setting for pressure
CHF ... pulmonary edema... Recent or acute DVT... Lymph or venous obst…
Edema... DVT prevention... Venous stasis ulcers... Residual limp shapi…
30-60
40-80
Contraindications of compression
CHF ... pulmonary edema... Recent or acute DVT... Lymph or venous obst…
Indications for compression
Edema... DVT prevention... Venous stasis ulcers... Residual limp shapi…
27 terms
Compression
Piston
Compresstion
Piston Pin
Connecting rod
Piston
Compresstion
Compression
What is Compression?
Parameters
Congressional Math
Compression Stages
-Makes an audio signal volume level more consistent.... -Reduce…
-Threshold - Compressors reduce levels when their amplitude e…
-A ratio of 4:1 means that if input level is 4 dB over the th…
-Recording... -Mixing... -Mastering
What is Compression?
-Makes an audio signal volume level more consistent.... -Reduce…
Parameters
-Threshold - Compressors reduce levels when their amplitude e…
20 terms
Compression
Outline
Effects of External Compression
Improves Venous and Lymphatic Circulat…
Limits Shape and Size of Tissue
-Effects of external compression... -Clinical indications for ex…
-Improves venous and lymphatic circulation... -Limits the shape…
-Increases external hydrostatic pressure... -Intermittent compre…
-Exploited when compression garments are used after amputatio…
Outline
-Effects of external compression... -Clinical indications for ex…
Effects of External Compression
-Improves venous and lymphatic circulation... -Limits the shape…
Compression
lossy
lossless
Sound
Analogue signals
When data is uncompressed, its not exactly the same as the or…
When data uncompressed is restored completely to the original…
It can take a range of values - for loudness or frquency
Computer systems only work on digital so measurements are tak…
lossy
When data is uncompressed, its not exactly the same as the or…
lossless
When data uncompressed is restored completely to the original…
Compression
Effects
Indications
Contraindications
Bandages
Control edema... Scar management... Prevent DVT
Hypertrophic scarring... Edema... Risk for DVT
Heart failure... DVT... Malignancy
Long-Stretch: 60-70 mmHg, prevents contractures... Short-Stretch…
Effects
Control edema... Scar management... Prevent DVT
Indications
Hypertrophic scarring... Edema... Risk for DVT
24 terms
Compression
effects of external compression... impro…
Improving venous and lymphatic circula…
Limiting size and shape of tissue
Increasing tissue temperature
improves venous and lymphatic circulation... limits the shape a…
increases external hydrostatic pressure... intermittent compres…
exploited when compression garments are used after amputation…
may increase activity of temperature-sensitive collagenases t…
effects of external compression... impro…
improves venous and lymphatic circulation... limits the shape a…
Improving venous and lymphatic circula…
increases external hydrostatic pressure... intermittent compres…
6 terms
Compression
Edema, DVT prevention, venous stasis u…
Residual limb shaping
Pressure of antiembolism stockings
Purpose of antiembolism stockings
Inflation: 80-100... Deflation: 25-35... UE: 30-60... LE: 40-80
Inflation: 40-60... Deflation: 10-15... UE: 30-60... LE: 40-80
16-18 mm Hg
Prevent DVT in bed-ridden patient
Edema, DVT prevention, venous stasis u…
Inflation: 80-100... Deflation: 25-35... UE: 30-60... LE: 40-80
Residual limb shaping
Inflation: 40-60... Deflation: 10-15... UE: 30-60... LE: 40-80
9 terms
Compression
Compression
Ratio
Threshold
Attack
Reducing the dynamic range of a signal.
The amount of gain reduction applied in proportion to how ove…
The volume at which the compressor applies gain reduction.
How long the compressor takes to activate after the threshold…
Compression
Reducing the dynamic range of a signal.
Ratio
The amount of gain reduction applied in proportion to how ove…
Compression
antiembolism stockings
compression
deep venous thrombosis (DVT)
edema
knee-high or thigh-high stockings that provide low compressio…
application of a mechanical force that increases external pre…
blood clot in a deep vein
swelling caused by increased fluid in the interstitial spaces…
antiembolism stockings
knee-high or thigh-high stockings that provide low compressio…
compression
application of a mechanical force that increases external pre…
13 terms
Compression
Threshold
Ratio
Compression Ratio of 6:1
Make-up Gain
Sets a point in Decibels of how loud the signal has to be bef…
Indicates how much compression is applied relative to the inp…
An input signal that crosses the threshold by 6db will be att…
Allows you to boost the compressed signal. This control is ve…
Threshold
Sets a point in Decibels of how loud the signal has to be bef…
Ratio
Indicates how much compression is applied relative to the inp…
24 terms
Compression
Compression
Static Compression
Effects
Circulation
- is a "mechanical force"... - used to increase external pressur…
elastic bandage, wraps, cotton supports, custom-fit garments,…
- Circulation - venous and lymphatic... - controls limb shape an…
- improved by increased hydrostatic pressure in interstitial…
Compression
- is a "mechanical force"... - used to increase external pressur…
Static Compression
elastic bandage, wraps, cotton supports, custom-fit garments,…
20 terms
Compression
Effects of Compression
Improves Venous and Lymphatic Circulat…
Increased Tissue Temperature
Clinical Indications for Compression
Improves Venous and lymphatic circulation... Limits the shape an…
Increased External hydrostatic pressure, which limits outflow…
Garments/sleeves are insulators... May increase activity of temp…
Edema... Venous Stasis Ulcers... DVT Prevention:... Prevents blood fro…
Effects of Compression
Improves Venous and lymphatic circulation... Limits the shape an…
Improves Venous and Lymphatic Circulat…
Increased External hydrostatic pressure, which limits outflow…
Compression
Compression
Intermittent Pressure Pump
How much pressure do you need to reali…
Graded pressure, high and low pressure…
the application of external mechanical pressure to the body f…
the most common device used for edema
25 mmhg
High - distally ... low - proximal
Compression
the application of external mechanical pressure to the body f…
Intermittent Pressure Pump
the most common device used for edema
19 terms
compression
objects that can be compressed
columnstore
effect on rows
max row size
heap, cluster, index, indexed view
these are already compressed and cannot be compressed further…
can allow more rows per page but does not affect max page size
smaller due to compression overhead
objects that can be compressed
heap, cluster, index, indexed view
columnstore
these are already compressed and cannot be compressed further…
36 terms
Compression
Compression
Causes of edema
Acute edema
Venous edema
Mechanical force that increases external pressure on a body p…
Venous or lymphatic insufficiency or obstruction, increased c…
Rapid onset after injury, redness, warmth, localizes, painful…
Slow progressing, moderate warmth, dusky color or brownish st…
Compression
Mechanical force that increases external pressure on a body p…
Causes of edema
Venous or lymphatic insufficiency or obstruction, increased c…
8 terms
COMPRESSION
compression
purpose//effects
edema
hydrostatic pressure
use of mechanical force to increase external pressure on the…
-IMP CIRCULATION (venous & lymphatic return)... -incr interstit…
**cant always palpate edema & cant measure
-pushes fluid out of vessel (BP & gravity) ---lymph picks up…
compression
use of mechanical force to increase external pressure on the…
purpose//effects
-IMP CIRCULATION (venous & lymphatic return)... -incr interstit…
Compression
Threshold
What is the difference between a limit…
Name the parameters of a compressor
Describe how the attack works in a com…
Bench marks for amplitude. Delineate boundaries above which c…
Compression </= 10:1>/=Limiting
Attack, Release, ratio, threshold, make up gain
Attack describes how quickly the threshold can fully kick in…
Threshold
Bench marks for amplitude. Delineate boundaries above which c…
What is the difference between a limit…
Compression </= 10:1>/=Limiting
Compression
1. Static Compression ... 2. Intermitte…
1. Clinical Indications for External C…
1. Causes of edema... 2. Venous Insuffic…
1. Phlebitis
1. -increase hydrostatic pressure in interstitial space ... -lim…
1. Edema , prevention of DVT, V.S. Ulscers, residual limb sha…
1. Venous or lymphatic obstruction or insufficiency *compress…
1.- Inflammation of veins... - thickening of veins walls ans lac…
1. Static Compression ... 2. Intermitte…
1. -increase hydrostatic pressure in interstitial space ... -lim…
1. Clinical Indications for External C…
1. Edema , prevention of DVT, V.S. Ulscers, residual limb sha…
Compression
compression ring
piston
piston rings
piston skirt
compression ring
piston
11 terms
Compression
Can only achieve a comp rate 2 and 3 t…
Compression rarely used at modality EX…
Larger comp rates often required for a…
JPEG loss =
Lossless compression
Ultrasound and cardiology
Lossy
Ultrasound
Can only achieve a comp rate 2 and 3 t…
Lossless compression
Compression rarely used at modality EX…
Ultrasound and cardiology
32 terms
Compression
Compression Definition
Effects of external compression... How do…
Edema
Normal fluid equilibrium
Application of a mechanical force that increases pressure on…
Improves venous and lymphatic circulation... - increase HP in t…
accumulation of abnormal amounts of fluid within the extra va…
balance between hydrostatic and osmotic pressures inside and…
Compression Definition
Application of a mechanical force that increases pressure on…
Effects of external compression... How do…
Improves venous and lymphatic circulation... - increase HP in t…
5 terms
Compression
What is compression?
What is lossy compression?
If a file that has been lossily compre…
A file that has been lossily compresse…
The reduction in file size to reduce download times and stora…
A type of compression that removes some of the data.
the data is not replaced and quality is lost.
restored to its original detail.
What is compression?
The reduction in file size to reduce download times and stora…
What is lossy compression?
A type of compression that removes some of the data.
13 terms
Compression
What is the minimum level the ABI (ank…
What kind of compression is allowed fo…
Static Compression
Intermittent Compression
.8... -Ankle BP is .8 of brachial BP which indicated peripheral…
Static
Edema due to venous or lymphatic dysfunction or inflammation…
Edema due to venous or lymphatic dysfunction... Prevent DVT
What is the minimum level the ABI (ank…
.8... -Ankle BP is .8 of brachial BP which indicated peripheral…
What kind of compression is allowed fo…
Static
43 terms
Compression
external compression improves
external compression limits
external compression increases
Intermittent compression:
venous and lymphatic circulation
the shape and size of tissue... *Exploited when compression gar…
tissue temperature
Pressure that is alternately applied and released and is usua…
external compression improves
venous and lymphatic circulation
external compression limits
the shape and size of tissue... *Exploited when compression gar…
20 terms
compression
two types of forces
static force
dynamic force
static loads
static and dynamic
force applied at rest
force applied through movement
weight o product/packages, time, humidity, pallet pattern/typ…
two types of forces
static and dynamic
static force
force applied at rest
46 terms
Compression
What is the role of compression?
Compression makes soft sounds...
Compression makes loud sounds...
Compression makes moderate sounds...
To decrease the range of sound levels in the environment to b…
More audible than linear processing
More comfortable and less distorted than linear
Similar in level to linear
What is the role of compression?
To decrease the range of sound levels in the environment to b…
Compression makes soft sounds...
More audible than linear processing
Compression
What are the two main compression stra…
Linear compression uses ______
Nonlinear compression uses these two s…
Explain the differences between output…
Linear vs. Nonlinear
peak clipping
output limiting or WDRC
output limiting has high compression ratios, high knee points…
What are the two main compression stra…
Linear vs. Nonlinear
Linear compression uses ______
peak clipping
Compression
Indications
Contraindications/Precautions
Justification/physiological effects
Compression pump parameters
edema, venous insufficiency, lymphedema, residual limb shapin…
Contra - Congestive Heart Failure (CHF), DVT, thrombophlebiti…
increased circulation by increasing hydrostatic pressure, inc…
inflation & deflation time (3:1 ratio), inflation pressure (m…
Indications
edema, venous insufficiency, lymphedema, residual limb shapin…
Contraindications/Precautions
Contra - Congestive Heart Failure (CHF), DVT, thrombophlebiti…
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