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Contents of journal 35
March 1999
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- CREG Journal
(PDF 8.6MB)
  Individual articles may be available below
- Contents
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- Integrated Geophysical Surveys Applied to Karstic Studies
- Dr Rob McDonald, Nicholas Russill and Dr Rob Davis explain how multiple geophysical methods can be used to reduce ambiguities which result from the use of a single method.
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- Getting Started with PICs
- Many people are put off using PIC microcontrollers because of the cost of the development kit and lack of experience says Stuart France. To help overcome these problems a low cost PIC programmer and a project board to make a simple counter are provided in kit form.
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- Speleonics
- Review of the last quarter's discussion on the speleonics mailing list by Jeremy Davis. Recent topics include power generation, LED light sources, and the speleonics e-mailing list itself.
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- Quantifying the Improvement - Loops, Good & Poor Electrodes
- A 31dB gain was achieved using earth current instead of loops. The difference between poor and good electrodes was also measured. John Rabson and Rob Gill report.
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- Caving Lamps - a New Generation
- Chris Vernon describes the development and performance of a practical helmet mounted LED cave-light with integrated battery charger.
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- Web Watch
- Peter Ludwig brings us a wide selection of Web sites - plenty here on batteries, lighting and tools.
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- Car Lamp Chargers
- Forgotten to put your lamp on charge? Chris Trayner outlines his design for a simple battery charger which plugs into a car cigarette lighter socket.
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- Cave Radio Notebook
- 36: Energy storage in Inductors, 37: Underwater Radiolocation, 38: Comms Reports, 39: Index to Cave Radio Notebook. Edited by David Gibson.
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- 3496Hz - 'D-Q' Radiolocation Beacon
- Correction.
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- Smart-chargeable Caving Lamps
- Stuart France investigates the discharge and charge characteristics of NiCd and NiMH batteries and introduces his design for a smart charger.
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- Wet & Dry
- This quarter: Failure modes of caver counters and cave-proofing boxes and connectors. Edited by Richard Rushton.
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- Cave Data Loggers
- Data loggers can make a contribution to cave science. Chris Trayner describes three units and looks at a current application.
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- Speleo-tools: What to take Underground
- Experience suggests that cave electronics experimenters would benefit from a toolkit underground, says Mike Bedford. Here we look at some tools which are particularly suitable for the underground and outdoor environment.
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- Letters to the Editor
- Feedback, debate, information & news - our readers have their say. Field meetings, ghost writing and bat detection are this quarter's subjects.
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