| Wesleyan_Methodists Led by John Wesley, who built first Methodist chapel in Bristol in 1739. Members were active in the campaign for religious emancipation. Victories included the repeal of the Test and Corporation Acts |
| The_Stickley_Museum_of_Craftsman_Farms A National Historic Landmark in Parsippany, New Jersey. Provides details of the collection, the museum shop, a calendar of events, tour schedules, and directions. |
| Tips_for_Rapid_Instructional_Design Some tips, tricks, and techniques for rapid instructional design. |
| North_American_Serials_Interest_Group Organization that promotes communication and sharing of ideas among all members of the serials information chain. Includes reports and information on conferences. |
| Glossary_of_Financial_Terms Finance related terms maintained by Moneyworld. |
| The_Tank_Museum Located in Bovington, Dorset, the worlds largest collection of tanks and armoured fighting vehicles. |
| Anglo-Hellenic_Teacher_Recruitment An agency that matches English teachers to schools in Greece. |
| Dorm_Tours Virtual tours of college dorms and everything you need to do to be prepared for campus life, both in and out of the classroom. |
| College_Town_Life This site presents information about issues related to student and year-round residents living and working together in college towns across the United States. Listings are grouped into related section |
| Bare_Bones_101 Seventeen lesson course on the various aspects of research in the library and on the web. |
| UM-SI__Job_Lists The University of Michigan School of Information maintains this categorized list of joblists in library and information studies. Users can search full- and part-time positions by categories (includin |
| EarFish_Learning_&_Translation_Services Provides language tutoring and translation services for all languages. |
| El_Paso_Community_College_Northwest_Campus_Library Library resources include research tools, research tutorial, and guides for programs. |
| Special_Kids_Learning_Resource_Network Video learning programs, picture books and media to help developmentally disabled kids 2-10 talk, read, write, self-help and interact |
| Center_for_International_Educational_Programs Russian language in Novosibirsk State University. Flexible programs for individuals and groups. 6 - 30 hours per week. Available all year. |
| PrintOurFlag_com Provides free download of images for printing intended for display, coloring and creating stickers. Includes a brief quiz on the history of the flag. |
| Flags_of_the_World__Montserrat National flag. |
| International_Bluegrass_Music_Museum Located on the banks of the mighty Ohio River in the RiverPark Complex in historic, downtown Owensboro, Kentucky. Features exhibits, tours, calendar, programs, and hall of fame. |
| The_Cavalier_Daily Student newspaper covering campus and national news. |
| Office_of_Student_Financial_Services Delivers federal, state, private, and institutional funds to eligible recipients and provides counseling services to prospective and current students. Application forms, FAQ, and scholarship searches. |
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Access
control system:
an electronic system that allows, restricts
and tracks the movement of people through
entry/exit points in a site. Programmable
electronic keys, cards etc. with readers
are used to achieve this.
AGC
Automatic Gain Control:
is circuitry in a camera which boosts the
video signal (including the noise). It becomes
operational when the light level is low.
Alarm
interface:
is a facility which allows external alarms
like PIR's, reed switches, vibration sensors
etc. to be connected to the CCTV switcher
so that a nominated camera is switched on
when an alarm signal is received.
ALC
Automatic Light Compensation:
is a setting in an auto iris lens to control
the iris opening. It can be adjusted between
peak and average to respond to the bright
part of the scene (peak setting) or the
average value of the video signal (average
setting).
Algorithms:
are complex mathematical formulae or rules
used to solve problems. In CCTV, they are
used to achieve digital compression of a
video picture.
Alkaline
battery:
is a type of DC power source with a longer
life compared to the standard battery. It
cannot be recharged.
Amplitude:
refers to the strength of the video signal
at a point and is measured in volts.
Angle
of refraction:
is the angle of bending of light when it
travels from one medium into another.
Angle
of view:
represents the area of the scene (maximum
horizontal and vertical angle) that can
be seen through a lens. It is measured in
degrees.
Aspect
ratio:
is the ratio between the horizontal and
the vertical lengths of the video picture.
The aspect ratio for NTSC and PAL systems
is 4:3.
Audible
detector:
is a device which detects sound. In CCTV,
it can be interfaced with a switcher so
that a nominated camera is switched on when
the detector is activated.
Audio
switching:
is a device which can switch between various
audio inputs either manually or sequentially.
Many matrix switchers incorporate this feature.
Auto
balance:
is a system of detecting and automatically
correcting errors in the amplitude of colour
signals.
Auto
iris:
is a diaphragm which is inbuilt in a lens
to automatically control the amount of light
falling on the chip. The tiny motors in
the lens open or close the diaphragm, depending
upon the amplitude of the video signal.
Automatic
pan:
is a feature of a pan tilt or pan only head
which allows the head to continuously move
(pan) left and right between two fixed points.
These fixed points can be set by adjusting
the limit switches in the head.
Attenuation:
is a reduction in the strength of light
or an electrical signal and is usually measured
in decibels.
Average
video signal:
represents the average light level of the
whole picture used to open or close the
automatic iris in the lens.
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Copyright 2004, Associated Locksmiths Of America