Citations with the tag: TIME measurements
Results 1 - 50
- The last word.
Hopkins, Will; Parasnis, D.S. // New Scientist; 10/14/95, Vol. 148 Issue 1999, p65
Presents answers to the query regarding the time at the North Pole. Time determined by a person's circadian rhythm; Local time; How to measure time; Time as independent of location; Time from a geophysical point of view.
- Tester streches time.
Hopkins, Will; Parasnis, D.S. // R&D Magazine; Sep97, Vol. 39 Issue 10, p62
Presents information on a technique that accurately measures time intervals between two events within 50 psec known as the Self-Calibrating Time Stretcher (SCTS). Information on the separation of the events; Details on other information relating to this technique.
- Oops! Femtosecond properly defined.
Hopkins, Will; Parasnis, D.S. // R&D Magazine; Dec94, Vol. 36 Issue 13, p12
Presents the definition of a femtosecond.
- Improving on the Babylonian second.
Jueneman, Frederic B. // R&D Magazine; Jan94, Vol. 36 Issue 1, p18
Reports on the various bases of time measurement. Timekeeping with a diurnal day-night cycle; Duration of a second; Addition of a leap-second; Rotation periodicity; Integration of satellite technology and precise chronometers; Use of the cesium clock.
- Gentle ways to measure time.
Jueneman, Frederic B. // Glamour; Feb95, Vol. 93 Issue 2, p125
Presents gentler ways to measure time. Stressful implications of keeping time by using a watch or clock.
- Statistics and dead time correction of two-particle time-of-flight coincidence experiments.
Luhmann, Till // Review of Scientific Instruments; Jun97, Vol. 68 Issue 6, p2347
Discusses the statistics of a specific class of two-particle coincidence experiments. Detection of the first particle; Start of a time-of-flight measurement in which the second particle is analyzed; Strong distortion of coincidence spectra caused by dead time of the electronics used for flight...
- CAMAC time-of-flight analyzer for molecular beam diagnostics.
Huisken, Friedrich; Pertsch, Thomas // Review of Scientific Instruments; Jun87, Vol. 58 Issue 6, p1038
Time-of-flight (TOF) analysis of supersonic molecular beams is accomplished by a computer-controlled TOF analyzer incorporated into a CAMAC module. The measured arrival times are stored in a LeCroy histogramming memory module and transferred to a minicomputer for further processing. The system...
- On-line plasma diagnostic by neutral atom time of flight analysis.
Dose, V.; Verbeek, H. // Applied Physics Letters; 7/27/87, Vol. 51 Issue 4, p229
Elementary procedures of linear algebra and numerical integration are combined for processing neutral atom time of flight spectra from a tokamak plasma. The method presented provides for on-line information about total neutral particle flux, mean energy, wall erosion rates, etc. at a time...
- On the geometry of master�slave synchronization.
Martens, Marco; Pe�cou, Elisabeth; Tresser, Charles; Worfolk, Patrick // Chaos; Jun2002, Vol. 12 Issue 2, p316
In 1990, Pecora and Carroll reported the observation that one can synchronize the orbits of two identical dynamical systems, which may be chaotic, by feeding state variables of one of them to the other one with no feedback, a phenomenon often called master-slave synchronization. We report here...
- Architects of Time.
Trefil, James // Astronomy; Sep99, Vol. 27 Issue 9, p48
Discusses the various methods and instruments used in time measurement. Overview of the Stonehenge architecture; Evolution of the calendar; Details on carbon dating; Introduction of pendulum and atomic clocks.
- Let Your Fingers Tell Time.
Newquist, Susan // Backpacker; Aug2000, Vol. 28 Issue 6, p114
Explains how mountaineers can determine the time using their hands.
- Time Out.
Todd, Susan // Cricket; Dec99, Vol. 27 Issue 4, p54
Gives instructions on how to set up ancient timekeeping systems.
- It's About Time.
Bauman, Richard // Cricket; Dec99, Vol. 27 Issue 4, p57
Relates the development of time keeping across time zones.
- It's about time.
Bauman, Richard // Country Living; Nov2004, Vol. 27 Issue 11, p158
Presents information on timers with their prices.
- Sundials in the Garden.
Riccio, Peggy // Early American Life; Jun2001, Vol. 32 Issue 3, p18
Focuses on sundials, one of the most commonly used garden ornaments. History of sundials; Description on sundial designs; Sundial construction; Factors to consider when purchasing a sundial.
- Partial Synchronization in Inhomogeneous Autooscillatory Media.
Akopov, A.A.; Vadivasova, T.E.; Astakhov, V.V.; Matyushkin, D.D. // Technical Physics Letters; Aug2003, Vol. 29 Issue 8, p629
Investigation of the phenomenon of partial synchronization in a continuous medium with natural frequency detuning depending on a spatial coordinate revealed frequency synchronization cluster formation previously known only in discrete models of distributed systems. The frequency cluster...
- Use logic-analyzer setup/hold triggering to ensure timing margins.
Shepard, Colin L. // EDN; 03/26/98, Vol. 43 Issue 7, p139
Reports that logic analyzers that offer setup/hold triggering, can be used to measure system timing margins. Importance of evaluating a prototype's timing margins; Definition of timing margins; How to measure timing-margins.
- PERFECT TIMING.
Marshall, Vin // Popular Science; Apr2010, Vol. 276 Issue 4, p74
No abstract available.
- Put time to the test.
Marshall, Vin // Scholastic SuperScience (Teacher's Edition); Nov/Dec99, Vol. 11 Issue 3, pT4
Lists experiments that science teachers can incorporate in their lessons on measuring time.
- Lab sheet: Put time to the test.
Marshall, Vin // Scholastic SuperScience (Teacher's Edition); Nov/Dec99, Vol. 11 Issue 3, pT6
Presents a sample laboratory sheet for experiments on the measurement of time.
- Introduction to Time.
Marshall, Vin // Monkeyshines on Health & Science; Sep2002 Time, p1
Focuses on the history and method of measuring time in the U.S. Categories of time measurement; Types of devices used to measure time; Use of a sundial in time measurement.
- Time Timeline.
Marshall, Vin // Monkeyshines on Health & Science; Sep2002 Time, p3
Presents chronological events related to the evolution of time measurement. Use of equinoxes to connect time and astronomy; Factors to be considered when farming; Recognition of Christian Huygens as the inventor of the pendulum.
- THE HISTORY OF TIME.
Marshall, Vin // Monkeyshines on Health & Science; Sep2002 Time, p5
Provides information on the history of time in the U.S. Types of methods used to measure time; Accounts on the counting system of the Sumerian civilization; Development of calendars used to predict the passing of days.
- Changing Attitudes Toward Time.
Marshall, Vin // Monkeyshines on Health & Science; Sep2002 Time, p6
Focuses on the attitudes of humans towards time in Greece. Need of clocks and calendars to measure time; Accounts on the belief of ancient people on the Great Year; Use of global cosmic time to study the age of the universe.
- What Time Is It?.
Marshall, Vin // Monkeyshines on Health & Science; Sep2002 Time, p17
Provides information on the measurement of time. Prediction of the changes of the seasons by the astronomers; Estimation of the circumference of the earth by the astronomer Ptolemy; Measurement of the positions of several stars in the sky by Hipparachus.
- Application of a time-resolved event counting technique in velocity map imaging.
Dinu, L.; Eppink, A. T. J. B.; Rosca-Pruna, F.; Offerhaus, H. L.; van der Zande, W. J.; Vrakking, M. J. J. // Review of Scientific Instruments; Dec2002, Vol. 73 Issue 12, p4206
We illustrate the use of a three-dimensional (x,y,t) charge-coupled-device (CCD) camera detection system in an ion imaging experiment. The time measurement is based on the decay characteristics of the phosphor screen, which is recorded in two successive images by a double exposure CCD camera....
- A Matter of Time.
Dinu, L.; Eppink, A. T. J. B.; Rosca-Pruna, F.; Offerhaus, H. L.; van der Zande, W. J.; Vrakking, M. J. J. // Children's Digest; Jan/Feb2000, Vol. 50 Issue 1, p18
Traces the history of clocks and watches. INSET: Let's Make a Clock.
- Jersey steams ahead.
Dinu, L.; Eppink, A. T. J. B.; Rosca-Pruna, F.; Offerhaus, H. L.; van der Zande, W. J.; Vrakking, M. J. J. // In Britain; Feb98, Vol. 8 Issue 2, p7
Relates that the world's largest steam-driven clock is one of the attractions on the waterfront development on the Channel Island of Jersey, Great Britain. History of the clock; Mechanism of the clock.
- Zeroing out zero.
Mahoney // Air Conditioning Heating & Refrigeration News; 11/29/99, Vol. 208 Issue 13, p12
Comments on an argument raised by certain groups in the National Institute of Standards and Technology that the next millennium does not start until after the end of 2000. Mathematical reasoning behind the claim that the millennium starts in 2001; Value of the zero in temporal measurements.
- Atomic Clock Stays Accurate for 20 Million Years.
Mahoney // Current Science; 4/7/2000, Vol. 85 Issue 14, p14
Focuses on the atomic clock, a vibrating clock made by the physicists of the National Institute of Standards and Technology in Boulder, Colorado. Functionality of cesium atoms in the clock; Accuracy of the atomic clock in telling time for a million year span; Relevance of the clock in the...
- First commissioning results from the nTOF facility at CERN.
Borcea, C.; Buono, S.; Cennini, P.; Dahlfors, M.; Dangendorf, V.; Ferrari, A.; Garcia-Munoz, G.; Kadi, Y.; Lacoste, V.; Nolte, R.; Radermacher, E.; Rubbia, C.; Saldana, F.; Vlachoudis, V.; Weierganz, T.; Zanini, L. // AIP Conference Proceedings; 2002, Vol. 610 Issue 1, p992
A new high-flux spallation neutron source, the neutron Time-Of-Flight facility (nTOF), recently became operational at CERN. The neutron energy ranges from the thermal to the GeV range. Performance results from the commissioning are reported. � 2002 American Institute of Physics.
- A Realistic Definition Of Cycle Time.
Lynch, Mike // Modern Machine Shop; Jun99, Vol. 72 Issue 1, p162
Focuses on the definition and measurement of the cycle time. Importance of the cycle time reduction; Effects of the cycle time on the production run; Information on the throughput time.
- Timing in hybrid facilities.
Betts, Mike // Broadcast Engineering; Oct2000, Vol. 42 Issue 11, p86
Looks at timing problems in digital broadcasting facilities. Overview of timing in analog facilities; Meaning of timing; Digital timing requirements; Checking digital video timing.
- Wait a second, then sing `Auld Lang Syne'.
Spotts, Peter N. // Christian Science Monitor; 12/27/95, Vol. 88 Issue 22, p3
Reports about the addition of one second to the year 1995 declared by the International Bureau of Weights and Measures in Paris. Accuracy of astronomical time and its relation to the earth's rotation; Development of atomic clocks; Standards of atomic clocks set by emissions of cesium atoms.
- Establishing the Reliability and Validity of Measurements of Walking Time Using the Emory...
Wolf, Steven L.; Catlin, Pamela A. // Physical Therapy; Dec1995, Vol. 79 Issue 12, p1122
Provides information on a study which assessed the validity and reliability of walking time measurements using the Emory Functional Ambulation Profile. Methodology; Results; Discussion on the results.
- GD Tested: While We're Young!
Wolf, Steven L.; Catlin, Pamela A. // Golf Digest; Nov2008, Vol. 59 Issue 11, p66
The article presents statistics on the time that the fastest groups of golfers would have played the course in about 3:03.
- Cellular clockwork.
Nitabach, Michael N.; Blau, Justin // Nature Genetics; Dec2002, Vol. 32 Issue 4, p559
Presents a study which identifies a cell-autonomous two-hour clock in diverse types of mammalian cells in culture. Feature of molecular clocks; Occurrence of somitogenesis; Propagation of the two-hour repeating wave of gene expression.
- Behind the speaker.
Smith, Tony // BMJ: British Medical Journal (International Edition); 11/9/91, Vol. 303 Issue 6811, p1207
Focuses on the preparation for a public speaking engagement. Significance of rehearsing the stage presentation; Need to check the timing to the last minute; Attention for fine tuning in the presentation.
- The Pace of Life.
Levine, Robert V. // American Scientist; Sep/Oct90, Vol. 78 Issue 5, p450
Presents information on a study that developed ways of measuring the tempo of a culture and assessed peoples' attitudes toward time. Value in describing and appreciating another culture's sense of time; Consequences of a society's pace of life for the health of the inhabitants; Correlation...
- Clocking time.
Neistat // Scholastic SuperScience; Nov/Dec99, Vol. 11 Issue 3, p4
Features different ways and devices for determining time. Major clock components; Fire-alarm clock; Flowers that open at specific times of day; Sunlight and shadows; Quartz watch; Digital clocks; Operating principle of 10,000 year clock.
- Dividing time.
Finton // Scholastic SuperScience; Nov/Dec99, Vol. 11 Issue 3, p8
Presents quizzes and activities concerning time. Natural cycles; Unit of time.
- Put time to the test.
Finton // Scholastic SuperScience; Nov/Dec99, Vol. 11 Issue 3, p10
Presents various activities that can be used to keep time. Procedure and materials; Construction of candy clock; Proper way of creating a dripping clock.
- Hidden clock mystery photos.
Finton // Scholastic SuperScience; Nov/Dec99, Vol. 11 Issue 3, p16
Features a picture puzzle about objects that contain a timing device. Clues and answers.
- How to Be an Old-Timer.
Boyles, Denis // Men's Health (10544836); Apr99, Vol. 14 Issue 3, p138
Presents techniques in determining time. Guidelines; Factors influencing time.
- USE YOUR HANDS AS A CLOCK.
Spiker, Ted // Men's Health (10544836); Oct2000, Vol. 15 Issue 8, p62
Presents tip on how to calculate time using one's hands.
- The ABCs of independent network synchronization.
Nemish, Gene // Telephony; 4/29/96, Vol. 230 Issue 18, p54
Focuses on the importance of timing and synchronization to information carriers. Information on Clear Creek Mutual Telephone Company's building integrated timing supply (BITS); Information on the different Stratum clocks; Importance of being able to trace the primary reference source (PRS).
- Shadow Time.
Nemish, Gene // Children's Digest; Mar/Apr2008, Vol. 58 Issue 2, p30
A quiz on reading sundials is presented.
- Versatility the key with Tempatron's TE48.
Nemish, Gene // Dairy Industries International; Jan1999, Vol. 64 Issue 1, p47
Introduces Tempatron's TE48 digital timer. Features of the device; Capabilities; Costs.
- Time for the future.
O'Meara, Stephen James // Odyssey; Feb99, Vol. 8 Issue 2, p5
Focuses on the measurement of time through the atomic clock. Measurement of the constant frequency of an event occurring at the atomic level of a cesium atom; Formation of the Bose-Einstein condensate.
- Speaking in time.
Hayman, Carol // New Scientist; 3/11/2006, Vol. 189 Issue 2542, p23
A letter to the editor is presented in response to an article on the 25-hour day in the February 4, 2006 issue.