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joint
joint
joint 1. A discrete brittle fracture in a rock along which there has been little or no movement parallel to the plane of fracture, but slight movement normal to it. Fracture may be caused by shrinkage, due to cooling or desiccation, or to the unloading of superincumbent rocks by
erosion or
tectonism. A group of joints of common origin constitutes a ‘joint set’ and the joints are usually planar and parallel or sub-parallel in orientation. ‘Joint systems’ comprise two or more joint sets, which are usually arranged systematically with respect to the
principal stress axes of regional deformation. Cooling joints (shrinkage joints), such as those which split a rock into long prisms or columns to form ‘columnar joints’, most commonly found in
lavas, are due to differential volume changes in cooling and contracting
magmas. Unloading joints result from erosional unloading of the
crust and form flat-lying, sheet-like joint sets, e.g. those found in granitic rocks.
2. See
VOIDS, TYPES OF.
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THE JOINT ENGINEERING WAY AHEAD
Magazine article from: Engineer; 1/1/2008; ; 700+ words
; ...all Service engineers if full-spectrum joint engineer functions are to be attained...range of planning and execution efforts. Joint engineer planning can include simultaneous...stabilization engineer operations, including joint interagency, intergovernmental, and mul...
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Joints in slabs.(Concrete Basics)
Magazine article from: Concrete Construction; 2/1/2005; ; 700+ words
; ...That's why we need joints in slabs. We put joints where we think the concrete...anyway, and use the joint to create a nice straight...the slab. Contraction joints are created with groovers...There are also plastic joint-forming strips, but...
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Joint Preservation Is Necessary for Hands-On Chiropractic
Magazine article from: Dynamic Chiropractic; 11/30/2003; ; 700+ words
; ...significant reasons why this joint is unable to accept stress, compared to other joints of the hand or wrist. The CMC joint of the thumb is a...interphalangeal (IP) joints.2 Because the articulating...surfaces of this CMC joint are incongruously matched...
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JOINT INTELLIGENCE TRANSFORMATION-BRIDGING THE GAP
Magazine article from: Military Intelligence Professional Bulletin; 7/1/2004; ; 700+ words
; "Joint transformation does not happen overnight...and Integrate; and ultimately Coherently Joint.'" -Admiral Edmund P. Giambastiani...Like the military as a whole, U.S. Joint Forces Command (JFCOM) has transformed...
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`Joint Tenancy' Not Always Best Solution
Newspaper article from: Chicago Sun-Times; 9/8/1995; ; 700+ words
; ...by the entireties shattered my faith in joint tenancy, something I always took as gospel...parents did, should own everything in joint tenancy - till death do they part. When...all - no fuss, no probate, no lawyers. Joint tenancy was, after all, "the poor man...
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Joint engineer training: Top ten lessons learned
Magazine article from: Engineer; 4/1/1999; ; 700+ words
; ...modern warfare demands that we fight as a joint team. This was important yesterday, it...will be even more imperative tomorrow. Joint Vision 2010 Army and Marine Corps engineers...upgrades. This scenario is an example of joint training, right? Not necessarily. To...
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Joint Doctrine Developments
Magazine article from: Engineer; 1/1/2004; ; 700+ words
; Can joint doctrine fix joint training and operational issues like those described above? Aren...answer is a qualified "yes" to both questions. As we look more to joint solutions in operations and training, the qualified "yes" should...
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Joints in concrete structures
Magazine article from: Concrete; 11/1/2002; ; 700+ words
; ...an overview of joint provision in monolithic...concrete structures. Joints in ground-supported...provide movement joints will depend on many factors. Joint types In practice...are three main joint types for in...structures construction joints, contraction...
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Joint selection for interior water pipes: an overview of the various joints commonly used to connect copper, steel and plastic pipe.(Back to Basics)
Magazine article from: PM Engineer; 10/1/2007; ; 700+ words
; ...Also known as a "sweat joint," soldered joints are only used to join plain...stronger than the soldered joint and produces joints in copper tube stronger than...as the soldered or brazed joint. Grooved Joints. The grooved joint is a...
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Joint venturing opens new markets. (column)
Magazine article from: Air Conditioning, Heating & Refrigeration News; 8/14/1989; ; 700+ words
; Joint venturing opens new markets Classic reasons for joint venturing are to enter new marketplaces, get larger jobs...expertise in conjunction with a more sophisticated and diverse joint venture partner. However, in all cases, a joint venture...
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joints
Book article from: The Oxford Companion to the Body
...muscles and of their tendons which span the joint. Joints first appear during the sixth week of fetal...General features of joints Freely movable joints are referred to as synovial joints. The whole joint region is enclosed by a ‘capsule...
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Joint Ventures
Encyclopedia entry from: Encyclopedia of Small Business
Joint Ventures A joint venture is a business enterprise undertaken by two or more persons or...expense and (hopefully) profit of a particular business project. A joint venture is not a business organization in the sense of a proprietorship...
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joints and jointing
Book article from: The Oxford Companion to the Earth
joints and jointing The word ‘joint’ has been used...set is a group of parallel joints, and a joint system consists of two or...spectrum is called a systematic joint . Most systematic joints are of tectonic origin...
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Joint Fluid Analysis
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
...Purpose The purpose of a joint fluid analysis is to...cause of swelling in the joints, to relieve pain and...fluid accumulation in the joint, and to diagnose certain...else. Aftercare of the joints will depend on the results...analysis. Risks While joint fluid analysis is generally...
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Joint Estate
Encyclopedia entry from: West's Encyclopedia of American Law
JOINT ESTATE Property owned by two or more people at the same time...interest, and with the same right of possession. Although joint estate is sometimes used interchangeably with joint tenancy , the two terms are not synonymous. Joint estate...
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