Collapse

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collapse

[kə′laps]
(engineering)
Contraction of plastic container walls during cooling; produces permanent indentation.
(materials)
The flattening of cells in heartwood during drying or pressure treatment; often characterized by a caved-in or corrugated surface appearance.

Collapse

 

acute vascular insufficiency accompanied by a fall in arterial and venous blood pressure.

Collapse is a result of a disturbance of the regulation of vascular tonus and injury to the vascular walls through infection, intoxication, massive blood loss, severe dehydration, myocardial affection (acute myocardial infarction), and other pathological conditions. Collapse is characterized by a decrease of blood flow to the heart, a deterioration of the blood supply to the vital organs, and the development of hypoxia. The patient’s facial features become pinched and the eyes roll back. He becomes pallid, with sticky perspiration and cold extremities. If the patient is conscious, he lies immobile and indifferent to his surroundings. Breathing is superficial and accelerated. The pulse is rapid. The most accurate index of the gravity of the patient’s condition is the degree to which arterial pressure is lowered. Severe collapse may be a direct cause of death. Collapse is treated with the immediate use of agents that stimulate the vascular and respiratory centers and with vasoconstrictors, blood transfusions, and blood substitutes. Measures should also be directed toward the elimination of the primary causes of the collapse.

collapse

Mechanical failure of cells in wood, usually caused by abnormal or forced drying.
References in periodicals archive ?
Another alternative was to dig up the collapsible soils and replace it with suitable imported ones.
collapsible utility box comes in both standard and custom sizes for protecting product loads ranging from 500 to 2,000 pounds during shipping and transport.
Collapsible cores have many advantages, but sometimes they're just too large for the application.
DemonstrationPack your cooking school with collapsible kitchen tools stored in drawers that are easily accessible to both instructors and students.
One of the factors influencing the choice of packaging is the distance of the supplier from the assembler: non-collapsible solutions are usually better over short distances, while collapsible packaging is better over long distances.
Fittings supplied for the pounds 4m development by the Penistone Road company include electrically-operated doors, dock levers and lights, collapsible frame dock shelters and conventional entrance doors for use by employees.
It is not just about the top-of-bed and accessory" she said, "value-added items are key for tween, teen and back to school." Among CHF's offerings are a roll-up mattress for sleepovers or lounging by the pool and a collapsible, yet functional, hamper.
Made from fair-trade and recycled paper, these waterproof, collapsible vases are easily portable and make great gifts.
The track T is molded on an axially separating mold core D that is designed to form the radically inner guide lugs 50 without requiring a radially collapsible core.
There are three variants of the XM8: a light version with a collapsible stock and a 9.5-inch barrel, a standard version with a 12-inch barrel, and a designated marksman version with a 20-inch barrel.
The chair is completely collapsible and can be used for relaxing, reclining and studying.
That's when I thought that some kind of container could stop that." She has also designed a collapsible sandwich box and a coffee and doughnut holder.