unavailability

• 入手不可能

関

N/A、not available、unavailable、unobtainable

WordNet

1. not available or accessible or at hand; "fresh milk was unavailable during the emergency"; "his secretary said he was unavailable for comment"

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/10/04 03:38:35」(JST)

wiki en

[Wiki en表示]

Unavailability is the probability that an item will not operate correctly at a given time and under specified conditions. It opposes availability.

Numerical values associated with the calculation of availability are often awkward, consisting of a series of 9s before reaching any significant numerical information (e.g. 0.9999999654). For this reason, it is more convenient to use the complement measure of availability, namely, unavailability. Expressed mathematically, unavailability is 1 minus the availability. Therefore, a system with availability 0.9999999654 is more concisely described as having an unavailability of 3.46E-8.

Unavailability may be expressed mathematically as the ratio,

U = MTTR/(MTTR+MTTF)

where MTTR is the mean time to repair, and MTTF is the mean time to failure. Alternatively, this can be written as

U = λ'/(λ'+μ')

where λ' is the critical failure rate (λ without the tick is the total failure rate) and μ' is the critical repair rate (rate at which critical failures are repaired).

In telecommunication, an unavailability is an expression of the degree to which a system, subsystem, or equipment is not operable and not in a committable state at the start of a mission, when the mission is called for at an unknown, i.e. random, time. The conditions determining operability and committability must be specified.

References

• Dunn, William R (2002). Practical Design of Safety-Critical Computer Systems. Reliability Press. ISBN 0-9717527-0-2.

UpToDate Contents

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English Journal

• Modelling and estimation of infectious diseases in a population with heterogeneous dynamic immunity.

• Veliov VM1, Widder A1.
• Journal of biological dynamics.J Biol Dyn.2016 Dec;10(1):457-76. doi: 10.1080/17513758.2016.1221474.
• The paper presents a model for the evolution of an infectious disease in a population with individual-specific immunity. The immune state of an individual varies with time according to its own dynamics, depending on whether the individual is infected or not. The model involves a system of size-struc
• PMID 27548025

• The Impact of Integrating Crisis Teams into Community Mental Health Services on Emergency Department and Inpatient Demand.

• Jespersen S1,2, Lawman B1, Reed F1, Hawke K1, Plummer V3,4, Gaskin CJ5.
• The Psychiatric quarterly.Psychiatr Q.2016 Dec;87(4):703-712.
• This investigation focused on the impact of integrating crisis team members into community mental health services on emergency department and adult mental health inpatient unit demand within an Australian public health service. Mixed methods were used including (a) the comparison of service use data
• PMID 26875105

• Computational predictive models for P-glycoprotein inhibition of in-house chalcone derivatives and drug-bank compounds.

• Ngo TD1, Tran TD1, Le MT1, Thai KM2.
• Molecular diversity.Mol Divers.2016 Nov;20(4):945-961. Epub 2016 Jul 18.
• The human P-glycoprotein (P-gp) efflux pump is of great interest for medicinal chemists because of its important role in multidrug resistance (MDR). Because of the high polyspecificity as well as the unavailability of high-resolution X-ray crystal structures of this transmembrane protein, ligand-ba
• PMID 27431577

Japanese Journal

• Prediction of CTL epitope, in silico modeling and functional analysis of cytolethal distending toxin (CDT) protein of Campylobacter jejuni.

• Ingale Arun G,Goto Susumu
• BMC research notes 7, 2014-02-19
• … It is realized as a major health issue attributable to unavailability of appropriate vaccines and clinical treatment options. …
• NAID 120005399108

• Data at Risk Initiative: Examining and Facilitating the Scientific Process in Relation to Endangered Data

• Murillo Angela P.
• Data Science Journal 12(0), 207-219, 2014
• … The results indicate that unavailability, lack of context, accessibility issues, and potential endangerment are key concerns to scientists. …
• NAID 130003383936

• 船舶の推進器システムのアンアベイラビリティについて (信頼性)

• 岡崎 忠胤,三友 信夫
• 電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 113(348), 25-29, 2013-12-13
• NAID 40019943114

Related Links

• Unavailability Synonyms, Unavailability Antonyms | Thesaurus.com

Synonyms for unavailability at Thesaurus.com with free online thesaurus, antonyms, and definitions. Dictionary and Word of the Day.

• unavailability - The Free Dictionary

unavailability. Also found in: Legal, Wikipedia, 0.01 sec. un·a·vail·a·ble ( n -v l -b l) . adj. Not available, accessible, or at hand. un a·vail a·bil i·ty n. ThesaurusLegend  : Synonyms Related Words Antonyms. Noun, 1. unavailability - the quality of not ...

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★リンクテーブル★

リンク元	「N/A」「入手不可能」「unavailable」「unobtainable」「not available」

「N/A」

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• 該当なし、入手不可能

関

not applicable、not available、unavailability、unavailable、unobtainable

「入手不可能」

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英

unavailability、unavailable、not available、unobtainable、N/A

関

該当なし、利用できない

「unavailable」

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• 入手不可能な、利用できない

関

N/A、not available、unavailability、unobtainable

　

「unobtainable」

　　[★]

• 入手不可能な

関

N/A、not available、unavailability、unavailable

「not available」

　　[★]

• 入手不可能な

関

N/A、unavailability、unavailable、unobtainable