Shock (mechanics)

A mechanical or physical shock is a sudden acceleration caused, for example, by impact, drop, kick, earthquake, or explosion. Shock is a transient physical excitation.

Shock describes matter subject to extreme rates of force wtr to time. Shock is a vector that has units of an acceleration (rate of change of velocity). The unit g (or g) represents multiples of the acceleration of gravity and is conventionally used.

A shock pulse can be characterised by its peak acceleration, the duration, and the shape of the shock pulse (half sine, triangular, trapezoidal, etc.). The Shock response spectrum is a method for further evaluating a mechanical shock.

Shock measurement

Shock measurement is of interest in several fields such as

Acute stress reaction

Acute stress reaction (also called acute stress disorder, psychological shock, mental shock, or simply shock) is a psychological condition arising in response to a terrifying or traumatic event, or witnessing a traumatic event. It should not be confused with the unrelated circulatory condition of shock, or the concept of shock value.

"Acute stress response" was first described by Walter Cannon in the 1920s as a theory that animals react to threats with a general discharge of the sympathetic nervous system. The response was later recognized as the first stage of a general adaptation syndrome that regulates stress responses among vertebrates and other organisms.

Signs and symptoms

Common symptoms that sufferers of acute stress disorder experience are: numbing; emotional detachment; muteness; derealization; depersonalization; psychogenic amnesia; continued re-experiencing of the event via thoughts, dreams, and flashbacks; and avoidance of any stimulation that reminds them of the event. During this time, they must have symptoms of anxiety, and significant impairment in at least one essential area of functioning. Symptoms last for a minimum of 2 days, and a maximum of 4 weeks, and occur within 4 weeks of the event.

CSI: Miami (season 4)

The fourth season of CSI: Miami premiered on CBS on September 19, 2005 and ended May 22, 2006. The series stars David Caruso and Emily Procter.

Description

With a mole in their midst, Horatio and Calleigh head a team of elite Crime Scene Investigators as they enter their most challenging season yet. Under the roof of a state-of-the-art redesigned crime lab, the dynamic duo investigate a series of crimes including a night-club murder, the death of a pool boy, a cold case rape, and a murder with a double-jeopardy clause, all whilst under the scrutiny of an anonymous mole, and facing a series of cases that threaten the team. With Alexx accused of murdering a child molester, Horatio accused of murdering an innocent woman, Wolfe facing the loss of his eye, and Mac Taylor joining the team when a prisoner transfer goes awry, it's ultimately Delko that faces the greatest loss, when his sister is gunned down by the Mala Noche gang in an attack that will begin a narrative that will recur throughout the next several seasons.

Image (journal)

Image is an American quarterly literary journal that publishes art and writing engaging or grappling with Judeo-Christian faith. The journal's byline is Art, Faith, Mystery. Image features fiction, poetry, painting, sculpture, architecture, film, music, and dance. The journal also sponsors the Glen Workshops, the Arts & Faith discussion forum, the Milton Fellowship for writers working on their first book, the summer Luci Shaw Fellowship for undergrads, and the Denise Levertov Award.

Material first published in Image has appeared in Harper's Magazine, The Best American Essays, The Pushcart Prize: Best of the Small Presses, The Best Spiritual Writing, The O. Henry Prize Stories, The Art of the Essay, New Stories from the South, The Best American Movie Writing, and The Best Christian Writing. In 2000 and 2003, Image was nominated by Utne Reader for an Independent Press Award in the category of Spiritual Coverage.

History

Image was established in 1989 by Gregory Wolfe and is non-profit quarterly based at Seattle Pacific University.Image was involved with the founding of Seattle Pacific University’s Master of Fine Arts degree, which launched in 2005. The SPU MFA is the world’s first university-based low-residency MFA program to integrate writing and Christian conviction, guided by teachers such as Scott Cairns, Robert Clark, Paula Huston, Gina Ochsner, Jeanne Murray Walker, and Lauren Winner.

Image (category theory)

Given a category C and a morphism in C, the image of f is a monomorphism satisfying the following universal property:

There exists a morphism such that .

For any object Z with a morphism and a monomorphism such that , there exists a unique morphism such that .

Remarks:

The image of f is often denoted by im f or Im(f).

One can show that a morphism f is epic if and only if f = im f.

Examples

In the category of sets the image of a morphism is the inclusion from the ordinary image to . In many concrete categories such as groups, abelian groups and (left- or right) modules, the image of a morphism is the image of the correspondent morphism in the category of sets.

In any normal category with a zero object and kernels and cokernels for every morphism, the image of a morphism can be expressed as follows:

Virtual appliance

A virtual appliance is a pre-configured virtual machine image, ready to run on a hypervisor; virtual appliances are a subset of the broader class of software appliances. Installation of a software appliance on a virtual machine and packaging that into an image creates a virtual appliance. Like software appliances, virtual appliances are intended to eliminate the installation, configuration and maintenance costs associated with running complex stacks of software.

A virtual appliance is not a complete virtual machine platform, but rather a software image containing a software stack designed to run on a virtual machine platform which may be a Type 1 or Type 2 hypervisor. Like a physical computer, a hypervisor is merely a platform for running an operating system environment and does not provide application software itself.

Many virtual appliances provide a Web page user interface to permit their configuration. A virtual appliance is usually built to host a single application; it therefore represents a new way to deploy applications on a network. Virtual machining is also a Virtual appliance in order to produce actual parts in virtual environments.