| 单词 | factor of safety |
| 例句 | Early on, Ogden ruled that what he termed “the factor of safety” in both the tank’s construction and its inspection had been almost nonexistent and those elements had caused the disaster. 1919 The Year That Changed America 2019-01-08T00:00:00Z They're often in their own corridors with really, really high factors of safety in how those corridors are designed. Still recovering from COVID-19, US public transit tries to get back on track 2022-12-27T05:00:00Z The regulations and factor of safety requirements aren’t as strict because, if it fails, no one is going to die. Young Scientist Makes Jet Engines Leaner and Cleaner with Plasma 2015-07-31T04:00:00Z “The factor of safety is now back to being a high criterion when selecting an airline.” Malaysia Airlines Struggles 1 Year After Flight 370 Vanishes 2015-03-06T05:00:00Z The number of ropes in a given elevator depends on something called a “factor of safety.” Elevator plunges are rare because brakes and cables provide fail-safe protections 2013-06-10T17:29:50Z But for every departure from this, which they deem the best mode of construction, a penalty in the shape of an addition to the factor of safety is made. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z When the engineers build a Brooklyn bridge they introduce an element which they call the factor of safety. The Victory At Sea 2012-01-17T03:00:15.547Z That’s what society does with factors of safety on a whole host of infrastructure.” Vermont Rebounding From Hurricane Irene 2011-12-06T03:59:24Z To adopt a reasonably high “factor of safety” in proportioning parts. A History of the Growth of the Steam-Engine 2011-04-21T02:00:53.240Z The imposing fabric of prosperity is built with a liberal factor of safety: but the larger grows the structure the more severe become these internal stresses. Readings in Money and Banking Selected and Adapted 2011-02-01T03:00:14.553Z These additions to the factors of safety with reference to the longitudinal as compared to the transverse seams, are given in the following table: Nature of the deviation in the construction or workmanship. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z One day an engineer said to me, 'There is a large factor of safety in this case, which is fortunate.' Scamping Tricks and Odd Knowledge Occasionally Practised upon Public Works 2011-01-14T03:00:46.103Z “We would double the design strength, just to give it a factor of safety,” Mr. Dooley said, referring to practices in the United States. 2010-01-14T04:07:00Z The factor of safety is invariably too low in this country, and is never too high in Europe. A History of the Growth of the Steam-Engine 2011-04-21T02:00:53.240Z And because that "factor of safety" is a large one with respect to the normal benzoic acid content of our food it does not follow that we can encroach on it with perfect impunity. Food Poisoning An addition of .25 is also made to the factor of safety, when the strakes are not entirely under or over. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z So ran the reasonable prefiguring; but plans and prefigurings based upon the performance of a gasolene motor call for a generous factor of safety. The King of Arcadia Just as an added factor of safety, you'd better put this on, Clio—those emergency suits aren't good for much in a battle. Triplanetary The diameters of drums, sheaves, and pulleys should increase with the working load when the factor of safety is less than 5 to 1. Knots, Bends, Splices With tables of strengths of ropes, etc. and wire rigging Later used for instruction ship because of high factors of safety. Aces Up When following this plan gives a thinner tooth than the calculation calls for, the factor of safety and the allowance for wear are reduced. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z In most structural uses of concrete, its strength in compression only is utilized, and the factor of safety is such as to eliminate to some extent failures due to inferior materials or workmanship. American Rural Highways But even if such data are obtained, and the machine given the strength indicated, this factor of safety is insufficient. Learning to Fly A Practical Manual for Beginners In general, some considerable factor of safety must be allowed after arriving at calculated average of samples,—how much it is difficult to say, but, in any event, not less than 10%. Principles of Mining Valuation, Organization and Administration Very probably, at that moment, it was stretched far past the limit of strain for which even its factor of safety was designed. Space Platform A factor of safety of two is a fair allowance when loading threads. On Laboratory Arts The factors of safety are indeterminable; the duplications of their internal mechanisms are conjectural, variable. Breaking Point Men had to devise new methods in construction—always with the knowledge that weight must be saved—and to create new factors of safety, before they could build an airworthy craft. Learning to Fly A Practical Manual for Beginners Just as an added factor of safety, you'd better put this on, Clio--those emergency suits aren't good for much in a battle. Triplanetary You'll have plenty of fun figuring out strains in this machine, so let's be safe and use a factor of safety of five. The Black Star Passes The committee recommended that a factor of safety of 4 should be taken for wind stresses. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" This is the line that gives a sound factor of safety. The Plattsburg Manual A Handbook for Military Training In peace flying, too, as well as in war, the multiple-engined aeroplane brings a new factor of safety. Learning to Fly A Practical Manual for Beginners The factor of safety used in this structure was four, but some engineers who are not familiar with concrete construction may require a higher factor. Transactions of the American Society of Civil Engineers, Vol. LXX, Dec. 1910 A Concrete Water Tower, Paper No. 1173 The night was not very cold, rather balmy than otherwise, and the descent into the Canyon was made as quickly as possible, the factor of safety being considered. I Married a Ranger The working stress in any case is fmax. divided by a factor of safety. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" For aerial motive-power, the principal requirements are: great power for weight with a fairly high factor of safety, compactness, reliability of operation under flying conditions, and safety from fire. Public Speaking So, already, one sees these factors of safety emerge and take their place. Learning to Fly A Practical Manual for Beginners Failures by slipping of bars, and by cracking and disintegrating of the concrete beam near the support, as exhibited by the other tests, indicate danger, and demand much larger factors of safety. Some Mooted Questions in Reinforced Concrete Design American Society of Civil Engineers, Transactions, Paper No. 1169, Volume LXX, Dec. 1910 Allowing a generous factor of safety, let us say that a 250 is all sufficient. Scientific American Supplement, No. 611, September 17, 1887 That substructures and retaining walls designed according to the Rankine or similar theories have an additional factor of safety from too generous an assumption in regard to earth pressure is practically admitted everywhere. Pressure, Resistance, and Stability of Earth American Society of Civil Engineers: Transactions, Paper No. 1174, Volume LXX, December 1910 Meltzer has compared the reserve force of the body to the factor of safety in mechanical construction. Disease and Its Causes The ratio of the ultimate strength to the working strength is called the factor of safety. Instructions on Modern American Bridge Building Based on such confidence, factors of safety are sometimes worked out to the hundredth of a unit. Some Mooted Questions in Reinforced Concrete Design American Society of Civil Engineers, Transactions, Paper No. 1169, Volume LXX, Dec. 1910 "The regular use of milk is the greatest single factor of safety in the human diet." Food Guide for War Service at Home Prepared under the direction of the United States Food Administration in co-operation with the United States Department of Agriculture and the Bureau of Education, with a preface by Herbert Hoover For a discussion of factors of safety and safe working stresses for structural timbers see the Manual of the American Railway Engineering Association, Chicago, 1911. The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing Then, too, in your structural-steel sections your factor of safety is wrongly figured. Laughing Bill Hyde and Other Stories The following is a table of ultimate and working strengths of materials, and factors of safety: Weight Materials.Ult. Instructions on Modern American Bridge Building To determine the safe working pressure divide the bursting pressure of the weakest place by the factor of safety. Rough and Tumble Engineering This was done by two structural experts; and not till he got their report as to ample factors of safety was Edison reassured as to this detail. Edison, His Life and Inventions The outstanding feature of these machines is the high factor of safety, which attribute has astonished some of the foremost aviation experts in the world. Aeroplanes and Dirigibles of War Smaller factors of safety may also have to be used. The Project Gutenberg Encyclopedia Volume 1 of 28 Not a bad factor of safety, that, with my limited means of working.” Darkness and Dawn The Tejadas, realizing only too well the propensity of pack animals to get sore backs and go lame, regarded my promise in the light of a factor of safety. Inca Land Explorations in the Highlands of Peru The chronic state of the acute phenomenon, known as the nervous breakdown, really represents in them a breakdown of the reserves of the adrenals, and an elimination of their factor of safety. The Glands Regulating Personality Light and sound were the factors of safety. The Man |
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