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| 1. |
Use Your Math Skills to Rescue Town From Crisis |
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Opflow,
Volume 18,
Issue 9,
1992,
Page 1-7
Ken Coleman,
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PDF (241KB)
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摘要:
Stressing math skills, the article presents a real‐life water supply problem and goes through the steps to solve it.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1992.tb00771.x
出版商:Wiley
年代:1992
数据来源: WILEY
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| 2. |
Regulatory Climate Multiplies Questions for Small Utilities |
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Opflow,
Volume 18,
Issue 9,
1992,
Page 3-5
Trudie Lay,
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PDF (1541KB)
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摘要:
This article addresses small water system directors or commissioners, regarding their roles in protecting the environment, providing safe water, working with operators, planning, regulatory compliance, and responsibility.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1992.tb00772.x
出版商:Wiley
年代:1992
数据来源: WILEY
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| 3. |
Fall Is Perfect Time to Exercise System's Valves |
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Opflow,
Volume 18,
Issue 9,
1992,
Page 5-5
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PDF (768KB)
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摘要:
Planned exercising of valves keeps them clean and operable, extends their life, and pinpoints problem valves, allowing time to schedule repair or replacement. In general valves, should be exercised once a year; critical valves should be exercised more often. This article tells when and how to exercise valves.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1992.tb00773.x
出版商:Wiley
年代:1992
数据来源: WILEY
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| 4. |
Let Your Fingers Do the Working — Dial 1‐(800) VALVE ON |
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Opflow,
Volume 18,
Issue 9,
1992,
Page 9-9
Brent Traughber,
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PDF (75KB)
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摘要:
Keeping distant tanks filled requires operating remote valves. To save a 22‐mile round trip each time the valve needed to be activated, the author created a system that allows the valve to be operated from a telephone. Materials, details of construction, and a schematic are included.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1992.tb00774.x
出版商:Wiley
年代:1992
数据来源: WILEY
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| 5. |
Catch Net Snags Dirty Stir Bars, Stores Them During Washing |
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Opflow,
Volume 18,
Issue 9,
1992,
Page 10-10
Gregg D. Stonecipher,
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PDF (517KB)
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摘要:
Some lab tests require constant stirring of the sample. After testing, the samples are dumped out, requiring that the stir bars be retrieved from sinks and drains. Washing the stir bars is a problem because they are small and slip through trays in the labware cleaner. The problem is solved with a net that catches stir bars as the samples are dumped and then holds the stir bars in the tray in the labware cleaner. Instructions for making the net are given.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1992.tb00775.x
出版商:Wiley
年代:1992
数据来源: WILEY
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