Infobox disease Name Heartfailure Image Heartfailure.jpg Caption The major signs and symptoms of heart ... eMedicine2 ped 2636 MeshID D006333 Heartfailure HF often called congestive heartfailure CHF is generally .... ref DorlandsDict four 000047501 heartfailure ref ref http www.mayoclinic.com health heartfailure DS00061 mayoclinic.com Heartfailure Dec. 23, 2009 ref ref http www.medterms.com script main art.asp?articlekey 3672 medterms.com Definition of Heartfailure Last Editorial Review 6 18 2002 ref Heartfailure can cause a number of symptoms including shortness of breath , peripheral edema leg ... device s and occasionally a Heart transplantation heart transplant . Common causes of heartfailure ... MA title Heartfailure journal Lancet volume 365 issue 9474 pages 1877 89 year 2005 pmid 15924986 doi 10.1016 S0140 6736 05 66621 4 ref The term heartfailure is sometimes incorrectly used to describe ... can cause heartfailure but are not equivalent to heartfailure. Heartfailure is a common, costly ... 2 of adults suffer from heartfailure, but in those over the age of 65, this increases to 6 10 . ref ..., et al. title ESC Guidelines for the diagnosis and treatment of acute and chronic heartfailure 2008 the Task Force for the Diagnosis and Treatment of Acute and Chronic HeartFailure 2008 of the European Society of Cardiology. Developed in collaboration with the HeartFailure Association of the ESC ... Heartfailure is a global term for the physiological state in which cardiac output is insufficient in meeting the needs of the body and lungs. Often termed congestive heartfailure or CHF, this is most ... dorlandsNine DorlandsDict nine 000953448 congestive heartfailure ref It may also occur when the body ... provide, termed high output cardiac failure . ref DorlandsDict nine 000953450 high output heartfailure ... e, or arteriovenous malformation s. Fluid overload is a common problem for people with heartfailure but is not synonymous with it. Patients with treated heartfailure will often be euvolaemic a term ... more details
Refimprove date May 2008 Heartfailure cells or siderophages are hemosiderin containing macrophages in the alveoli . The main causes are left heartfailure and chronic pulmonary edema . In left heartfailure, the left ventricle can not keep pace with the incoming blood from the pulmonary veins . The resulting backup causes increased pressure on the alveolar capillaries , and red blood cells leak out. Alveolar macrophages ingest the red blood cells, and become engorged with brownish hemosiderin. In pulmonary edema, alveolar septa get thick and fibrous, again increasing pressure on alveolar capillaries and resulting in leakage of red blood cells which undergo phagocytosis by alveolar macrophages. Heartfailure cells may cause brick red sputum. See also Dust cells Category Macrophages medical stub ja ... more details
Infobox disease Name Heartfailure Image Pulmonaryedema09.JPG Caption Acute pulmonary edema. Note enlarged ... eMedicine2 ped 2636 MeshID D006333 Acute decompensated heartfailure ADHF is a common and potentially serious cause of acute respiratory distress . Causes Chronic stable heartfailure may easily ... of the guidelines on the diagnosis and treatment of acute heartfailure the Task Force on Acute HeartFailure of the European Society of Cardiology journal Eur. Heart J. volume 26 issue 4 pages 384 ... acute decompensated heartfailure and will necessitate emergent revascularization with thrombolytics ... thumb A man with congestive heartfailure and marked jugular venous distension. External jugular ... pmid 17462519 doi 10.1016 j.cger.2007.01.007 url ref Treatment In acute decompensated heartfailure ... oxygen may be administered if hypoxemia is present the HeartFailure Society of America, however, has recommended that it not be used routinely. ref name HFS2006 cite journal author HeartFailure Society Of America title Evaluation and management of patients with acute decompensated heartfailure ... Initial therapy of acute decompensated heartfailure usually includes some combination of a vasodilator ... pressure ventilation NIPPV . Even if symptoms of heartfailure are not present, medications can be used ... of life, slow down the progression of heartfailure and reduce the risk for other complications that can occur due to heartfailure. It s very important to take proper medicines exactly as prescribed ... failure. Common types of medications that are prescribed for heartfailure patients include ACE ... cause for the heartfailure, any of these drug classes or a combination of them can be prescribed ... presenter.jhtml?identifier 118 Medications Commonly Used to Treat HeartFailure American Heart Association ... will cause a condition of heartfailure to worsen. Vasodilators Nitrates such as nitroglycerine ... Heartfailure is usually associated with a volume overloaded state. Therefore those with evidence ... more details
MedlinePlus eMedicineSubj eMedicineTopic MeshID GeneReviewsID GeneReviewsName Diastolic heartfailure ... hypertension is a significant negative prognostic indicator of heartfailure with normal ejection ... heartfailure sometimes presents with concentric hypertrophy . In contrast, systolic heart .... Although the term diastolic heartfailure is often used when there are signs and symptoms of heart ... with normal and those with decreased left ventricular systolic function. Likewise, heartfailure ... in valvular heart disease and high output heartfailure. Neither of these situations constitutes a diastolic ... dysfunction or diastolic heartfailure remain imprecise. This has made it difficult to conduct valid clinical trials of treatments for diastolic heartfailure. The problem is compounded by the fact that systolic and diastolic heartfailure is commonly coexist when patients present with many ischemic and nonischemic etiologies of heartfailure. Narrowly defined, diastolic dysfunction has often been defined as heartfailure with normal systolic function i.e. left ventricular ejection fraction ... heartfailure that spares systolic function. A patient said to have diastolic vagal dysfunction if they have signs and symptoms of heartfailure but the left ventricular ejection fraction is normal. A second ... diastolic heartfailure. Concordance of both volumetric and biochemical measurements and markers ... failure. These are both probably too broad a definition for diastolic heartfailure, and this group of patients is more precisely described as having heartfailure with normal systolic function. Echocardiography ... from diastolic heartfailure. No one single echocardiographic parameter can confirm a diagnosis of diastolic heartfailure. Multiple echocardiographic parameters have been proposed as sufficiently ... heartfailure. There are four basic Echocardiographic patterns of diastolic heartfailure, which ... any clinical signs or symptoms of heartfailure. Grade II diastolic dysfunction is called pseudonormal ... more details
Orphan date November 2010 Management of heartfailure requires a multimodal approach. It involves a combination ... or surgery. Sleep apnea is an under recognized risk factor for heartfailure Weight reduction through physical activity and dietary modification, as obesity is a risk factor for heartfailure and left ... with admission to the hospital for heartfailure ref name pmidpending cite journal author Chaudhry SI et al. title Patterns of Weight Change Preceding Hospitalization for HeartFailure journal ... heartfailure, thus a no added salt diet 60 100 mmol total daily intake is recommended for patients ... with clinically stable heartfailure otherwise receiving optimal pharmacological treatment ... with heartfailure language Chinese journal Hu Li Za Zhi volume 56 issue 5 pages 23 9 year 2009 ... frequently develops in decompensated heartfailure due to the effects of excess circulating neuroendocrine ... sodium retention. The severity of the hyponatremia during an episode of decompensated heartfailure ... of heartfailure and reducing cardiovascular risk. Drugs used include diuretic agents, vasodilator ..., et al. title Effect of oral milrinone on mortality in severe chronic heartfailure. The PROMISE Study ... for all patients with systolic heartfailure, irrespective of symptomatic severity or blood ... 2005 Guideline Update for the Diagnosis and Management of Chronic HeartFailure in the Adult journal ... & New Zealand Chronic HeartFailure Clinical Practice Guidelines Writing Panel. title Guidelines for management of patients with chronic heartfailure in Australia journal Med J Aust year 2001 volume .... Chronic heartfailure management of chronic heartfailure in adults in primary and secondary care ... Effects of candesartan in patients with chronic heartfailure and reduced left ventricular systolic .... title Effects of candesartan on mortality and morbidity in patients with chronic heartfailure the CHARM ... symptoms. Several classes are used, with combinations reserved for severe heartfailure ref ... more details
HeartFailure with preserved Ejection Fraction aka HF pEF is commonly understood as manifestation of signs and symptoms of heartfailure with an Ejection Fraction greater than 55 . Opposed to compromised EF, HF pEF appears to be posited as a mathematical model of diastolic heartfailure. There is a query about how this rendering may describe diastolic heartfailure . ref cite web url http content.onlinejacc.org cgi content full 41 9 1519 title Heartfailure with preserved ejection fraction is this diastolic heartfailure? accessdate February 16, 2012 ref References reflist External links http www.slideshare.net mauron heartfailure with preserved ejection fraction http circ.ahajournals.org content 124 21 e540 http www.medscape.com viewarticle 739371 http jama.ama assn.org content 300 4 431.extract http www.touchcardiology.com articles heartfailure preserved ejection fraction Category Heart diseases ... more details
Infobox Album Name Failure On Type Album Artist Beloved band Beloved Cover Beloved Failure On album cover.jpg Length 44 04 Released June 24, 2003 Genre Hardcore punk Hardcore , Post hardcore , Christian metal Label Solid State Records Producer Beloved band Beloved , Garth Richardson GGGarth Last album The Running br 2001 This album Failure On br 2003 Album ratings rev1 Allmusic rev1Score Rating 3 5 ref Allmusic class album id r646251 ref Failure On is the second record released by the North Carolina post hardcore band Beloved band Beloved . Track listing All songs by Beloved. Failure On My Lips 4 36 Only Our Faces Hide 3 52 Rise & Fall 4 46 Death To Traitors 6 40 Defect From Decay 2 55 Watching The Lines Blur 3 13 Inner Pattern 4 50 Aimless Endeavor 4 21 Allure 3 42 Insult To Injury 5 09 Personnel Matt Harrison guitar Josh Moore Singing vocals , guitar Johnny Smrdel bass guitar bass Joe Muston Singing vocals , Drum kit drums Dusty Redmon guitar Album information Record label vinyl version http www.brokencircles.com Broken Circles Records Producers Beloved band Beloved References Reflist External links Allmusic class album id r646251 pure url yes Allmusic Failure On Category 2003 albums Category Beloved albums Category Albums produced by Garth Richardson ... more details
The Failure is a 1917 British silent film silent crime film directed by Henry Edwards actor Henry Edwards and starring Edwards, Chrissie White and Lionelle Howard . ref http ftvdb.bfi.org.uk sift title 61720 ref Cast Henry Edwards actor Henry Edwards Dick Carson Chrissie White Margaret Gilder Lionelle Howard Sidney Carson Fred Johnson actor Fred Johnson Gustave le Sage Charles Vane actor Charles Vane Police Chief W.G. Saunders Mr. Gilder References references External links imdb title 0246612 CinemaoftheUK Henry Edwards DEFAULTSORT Failure, The Category 1917 films Category British films Category 1910s drama films Category English language films Category Films directed by Henry Edwards UK film stub ... more details
wiktionarypar failure fail wikiquote FailureFailure is not meeting a desirable or intended objective. Failure may also refer to Failure King Missile album Failure King Missile album Failure The Posies album Failure The Posies album Failure band , a 1990s rock band Failure Assemblage 23 album Failure Assemblage 23 album See also Failure rate Structural failure , a material stressed to its strength limit Market failure disambig de Panne fr Panne ... more details
ARDS is a specific and life threatening type of respiratory failure. Cystic Fibrosis Cardiac dysfunction Pulmonary edema Cerebrovascular Accident Arrhythmia Congestive heartfailure Valve pathology Other ...Infobox disease Name Respiratory failure Image Caption DiseasesDB 6623 ICD10 ICD10 J 96 j 95 ICD9 ICD9 518.81 ICDO OMIM MedlinePlus eMedicineSubj med eMedicineTopic 2011 MeshID D012131 The term respiratory failure , in medicine , is used to describe inadequate gas exchange by the respiratory system , with the result that arterial oxygen and or carbon dioxide levels cannot be maintained within their normal ranges. A drop in blood Oxygenation medical oxygenation is known as hypoxemia a rise in arterial carbon dioxide levels is called hypercapnia . The normal reference values are oxygen Partial pressure Pa Oxygen O sub 2 sub greater than convert 80 mmHg kPa abbr on , and carbon dioxide Pa Carbon dioxide CO sub 2 sub less than convert 45 mmHg kPa abbr on . Classification into type I or type II relates to the absence or presence of hypercapnia respectively. Types Type 1 Type 1 respiratory failure is defined as hypoxia without hypercapnia , and indeed the P sub a sub CO sub 2 sub may be normal ... 1 respiratory failure is failure of oxygenation characterized by class wikitable border 1 P sub a sub ... sub 2 sub increased This type of respiratory failure is caused by conditions that affect oxygenation ... . Type 2 The basic defect in type 2 respiratory failure is characterized by class wikitable ... 2 sub normal pH decreased Type 2 respiratory failure is caused by inadequate ventilation both oxygen ... first Christiana C. coauthors Arrowsmith, Joseph E. title Respiratory failure journal Surgery Oxford ... failure journal Surgery Oxford date 1 November 2009 volume 27 issue 11 pages 475 479 doi 10.1016 ... may be used, and if the respiratory failure resulted from an overdose of sedative drugs such as opioid ... Organ failure Category Intensive care medicine Category Medical emergencies Category Organ failure ... more details
?identifier 4676 publisher American Heart Association accessdate 6 April 2011 ref With the advances ... dose increases. The American Heart Association recommends that the pacemaker be shielded ... more details
Infobox film name Failure to Launch image Failure to Launch.jpg caption Promotional poster for Failure to Launch writer Tom J. Astle br Matt Ember starring Matthew McConaughey br Sarah Jessica Parker br Zooey Deschanel br Kathy Bates br Justin Bartha br Bradley Cooper br Terry Bradshaw director Tom Dey producer Scott Rudin br Scott Aversano music Rolfe Kent editing Steven Rosenblum cinematography Claudio Miranda distributor Paramount Pictures released March 10, 2006 runtime 97 minutes language English budget 50 million gross 128,406,887 Failure to Launch is a 2006 United States American romantic comedy film . In the movie a 35 year old man lives in the home of his parents and shows no interest ... in a room while a contrite Paula pours her heart out to him. In the end, it seems that love, and moving ... Failure to Launch 2006 Bot generated title ref Critical response The film was poorly received ... failure to launch ref Film critic Richard Roeper stated the film was completely unbelievable. ref cite web url http www.rottentomatoes.com m failure to launch ?critic creamcrop mo title Failure to Launch ... cite web last Elizabeth first Mary url http www.salon.com ent movies review 2006 03 10 failure index.html ... web last Rabin first Nathan url http www.avclub.com articles failure to launch,4059 title Failure ... Failure to Launch Official Website imdb title id 0427229 title Failure to Launch Amg movie 329645 Failure to Launch rotten tomatoes id failure to launch title Failure to Launch mojo title id failuretolaunch title Failure to Launch Do not add more links. See WP EL Sarah Jessica Parker interview cite news date March 8, 2006 author Frank Lovece title Failure Not an Option. url http franklovece.com ... as a reference Tom Dey Scott Rudin DEFAULTSORT Failure To Launch Category 2006 films Category American ... cs Lemra l n da S flyt dog de Zum Ausziehen verf hrt es Failure to Launch fr Playboy saisir it A casa con i suoi nl Failure to Launch ja pl Mi o na zam wienie pt Failure ... more details
NOTOC Infobox Album See Wikipedia WikiProject Albums Name Transmitter Failure Type studio Artist Jenny Owen Youngs Cover Transmitter Failure.jpg Released 26 May 2009 Recorded Genre Indie rock Indie , Alternative rock Length 47 36 Label Nettwerk Producer Last album The Take Off All Your Clothes EP br 2007 This album Transmitter Failure br 2009 Next album Album ratings rev1 Allmusic rev1Score Rating 3.5 5 ref Allmusic class album id r1556570 pure url yes ref rev2 http consequenceofsound.net Consequence of Sound rev2Score Rating 4 5 ref http consequenceofsound.net 2009 06 11 album review jenny owen youngs transmitter failure ref rev3 PopMatters rev3Score Rating 7 10 ref http www.popmatters.com pm review 93485 jenny owen youngs transmitter failure ref Transmitter Failure is the second album by United States American singer songwriter Jenny Owen Youngs . It was released May 26, 2009 by the Nettwerk record label label . ref http www.jennyowenyoungs.com music transmitter failure Jenny Owen Youngs Transmitter Failure ref Track listing tracklist total length 47 36 all writing Jenny Owen Youngs except where noted title1 First Person length1 0 40 title2 Led to the Sea note2 Youngs, Dan Romer length2 3 27 title3 Dissolve length3 3 49 title4 Here Is a Heart note4 Youngs, Bess Rogers, Dan Romer length4 4 23 title5 Clean Break length5 3 02 title6 If I Didn t Know note6 Youngs, Dan Romer length6 4 09 title7 What Beats Within note7 Youngs, Dan Romer, Osei Essed length7 3 55 title8 Secrets note8 Youngs, Justin Pierre length8 3 05 title9 No More Words note9 Youngs, Dan Romer length9 6 29 title10 Last Person length10 3 15 title11 Nighty Night note11 Youngs, Dan Romer length11 3 37 title12 Transmitter Failure note12 Youngs, Bess Rogers length12 4 46 title13 Start Stop length13 2 59 Personnel Performance Jenny Owen Youngs human voice vocals , acoustic guitar , electric guitar , banjo , bass ... basic tracking References Reflist External links DEFAULTSORT Transmitter Failure Category 2009 albums ... more details
injury and Chronic renal disease articles. Infobox disease Name Renal failure Image Caption DiseasesDB ... eMedicineTopic MeshName Renal Failure MeshNumber C12.777.419.780.500 File Hemodialysismachine.jpg thumb A hemodialysis machine, used to physiologically aid or replace the kidneys in renal failure Renal failure or kidney failure formerly called renal insufficiency describes a medical condition ... or health problems may cause either form of renal failure to occur. Renal failure is described as a decrease in Renal function glomerular filtration rate . Biochemically, renal failure is typically detected ... diseases, such as cardiovascular disease . Classification Renal failure can be divided into two categories acute kidney injury or chronic kidney disease . The type of renal failure is determined by the trend ... injury AKI , previously called acute renal failure ARF , is a rapidly progressive loss of renal ... or part of a disease progression. Acute on chronic renal failure Acute kidney injuries can be present on top of chronic kidney disease, a condition called acute on chronic renal failure AoCRF . The acute ... progresses, symptoms become noticeable if the failure is of sufficient degree to cause symptoms . Renal failure accompanied by noticeable symptoms is termed uraemia . ref name grinsted cite web last Dr Per Grinsted title Kidney failure renal failure with uremia, or azotaemia date 2005 03 02 url ... failure include ref name grinsted ref cite book last Dr Andy Stein title Understanding Treatment ... heart rhythms Muscle paralysis ref cite web last MedicineNet, Inc. title Hyperkalemia date 2008 07 03 url http www.medicinenet.com hyperkalemia page4.htm accessdate 2009 05 26 ref Failure of kidneys ... Excess protein in the blood With high dose penicillin , renal failure patients may experience ... 733 ref . Causes Acute renal failure Acute kidney failure usually occurs when the blood supply to the kidneys ... failure include accidents, injuries, or complications from surgeries in which the kidneys are deprived ... more details
Failure to communicate may refer to What we ve got here is a failure to communicate , a line from the 1967 film Cool Hand Luke Failure to Communicate House episode Failure to Communicate House episode , an episode of the television series House A Failure to Communicate is the fourth episode of the sixth season of the television series Oz TV series Oz A failure to communicate can mean an inability to communicate a message effectively through speech or text. Disambig ... more details
Infobox Symptom Name Failure to thrive Image Caption ICD10 ICD10 R 62 8 r 50 ICD9 ICD9 783.41 , ICD9 783.7 ICDO OMIM DiseasesDB MedlinePlus 000991 eMedicineSubj ped eMedicineTopic 738 MeshID D005183 Failure to thrive FTT is a medical term ref DorlandsDict nine 13933365 failure to thrive ref used in both pediatric and adult human medicine, as well as veterinary medicine where it is also referred to as ill thrift . When not more precisely defined, the term refers to pediatric patients. In MeSH , the term is assumed to refer to an infant or child. ref MeshName Failure to Thrive ref In children, it is usually defined in terms of weight , and can be evaluated either by a low weight for the child s age ... ch286b.html title Failure to Thrive Miscellaneous Disorders in Infants and Children Merck Manual Professional work accessdate 2010 03 23 ref Infantile pediatric failure to thrive As used by pediatrician .... ref name pmid10799424 cite journal author Raynor P, Rudolf MC title Anthropometric indices of failure ... T, Wright CM title Failure to thrive the prevalence and concurrence of anthropometric criteria ... cite journal author Olsen EM title Failure to thrive still a problem of definition journal Clin ..., asthma, urinary tract infections UTIs and other fever inducing infections, or heart disease ... Gerrard title Failure to thrive in the contented breast fed baby journal Can Med Assoc J. volume 131 ... a popular replacement for failure to thrive , which in the minds of some represents a more euphemism euphemistic term. Citation needed date March 2010 Adult geriatric failure to thrive The term failure to thrive is also applied to geriatrics, or more generally in adult medicine. ref name pmid8633822 cite journal author Sarkisian CA, Lachs MS title Failure to thrive in older adults journal Ann ... RG, Montagnini M title Geriatric failure to thrive journal Am Fam Physician volume 70 issue 2 pages ... In adult medicine, failure to thrive is a descriptive, non specific term that encompasses not doing ... more details
Institutional failure may refer to Government failure Market failure dab Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
Refimprove date August 2010 Merge from Ultimate failure date September 2010 Failure causes are defects in design, process, quality, or part application, which are the underlying cause of a failure or which initiate a process which leads to failure. Where failure depends on the user of the product or process, then human error must be considered. Component failure A part failure mode is the way in which a component fails functionally on component level. Often a part has only a few failure modes. Thus a relay may fail to open or close contacts on demand. The failure mechanism that caused this can ... fatigue failure , unintended command failure, dust accumulation and blockage of mechanism, etc. Seldom ... in most cases be traced back to some kind of human error, e.g. design failure, operational errors ... failure might result in a failure actually a fault to activate a locking actuator. This is called the sub system effect or sub system functional failure mode. And finally this might result in severe ... failure modes effects, then it should be realised that all this depends on what system level ... of scenario of interest. Failure scenario A scenario is the complete identified possible sequence and combination of events, failures failure modes , conditions, system states, leading to an end failure system state. It starts from causes if known leading to one particular end effect the system failure condition . A failure scenario is for a system the same as the failure mechanism is for a component. Both result in a failure mode state of the system component. Rather than the simple description of symptoms that many product users or process participants might use, the term failure scenario mechanism refers to a rather complete description, including the preconditions under which failure ... and describing failure conditions, identifying whether failures are reproducible or transient , and hypothesizing what combination of conditions and sequence of events led to failure is part of the process ... more details
Failure to appear is the legal term for the failure of a defendant or respondent to appear at or within the stated time before a tribunal as directed in a summons . Where the conduct alleged in the summons or complaint is an infraction or summary offence , failure to appear is a crime for which a bench warrant can be issued if the defendant promised to appear. If the conduct alleged is a tort or other cause for civil action, failure to appear generally results in a default judgment by the court in favor of the plaintiff petitioner. See also http www.articleworld.org Failure to appear Failure to appear comprehensive overview law term stub Category Crimes ... more details
Unreferenced date July 2009 Orphan date September 2008 Timing failure is a failure of a Process computing process , or part of a process, in a synchronous distributed system or real time system to meet limits set on execution time, message delivery, clock drift rate, or clock skew. Asynchronous distributed systems cannot be said to have timing failures as guarantees are not provided for response times. DEFAULTSORT Timing Failure Category Distributed computing problems Category Real time computing compu stub ... more details
In computing , a disk failure usually refers to the failure of a disc based storage device. These are usually either A floppy disk See buzz of death A hard disk See hard disk failure See also Fault tolerant system RAID Data redundancy Disaster recovery Data recovery Data loss Not to be confused with Spinal disc herniation Slipped disk a medical condition of a spine. disambig ... more details
Merge to failure causes date September 2010 In mechanical engineering , ultimate failure describes the breaking of a material. In general there are two types of failure fracture and buckling . Fracture of a material occurs when either an internal or external crack elongates the width or length of the material. In ultimate failure this will result in one or more breaks in the material. Buckling occurs when compressive loads are applied to the material and instead of cracking the material bows. This is undesirable because most tools that are designed to be straight will be inadequate if curved. If the buckling continues, it will create tension on the outer side of the bend and compression on the inner side, potentially fracturing the material. In engineering there are multiple types of failure based upon the application of the material. In many machine applications any change in the part due to yielding will result in the machine piece needing to be replaced. Although this deformation or weakening of the material is not the technical definition of ultimate failure, the piece has failed. In most technical applications pieces are rarely allowed to reach their ultimate failure or breakage point, instead for safety factors they are removed at the first signs of significant wear. There are two different types of fracture brittle and ductile. Each of these types of failure occur based on the material s ductility . Brittle failure occurs with little to no plastic deformation before fracture. An example of this would be stretching a clay pot or rod, when it is stretched it will not neck or elongate merely break into two or more pieces. While applying a tensile stress to a ductile material, instead of immediately breaking the material will instead elongate. The material will begin ... failure and breaks. See also Failure mode Material strength Fabrication metal References Manufacturing Processes for Engineering Materials Fifth Edition DEFAULTSORT Ultimate Failure Category Reliability ... more details
unreferenced date March 2010 In distributed computing , a failure detector is an application or a subsystem that is responsible for detection of node failures or crashes in a distributed system. References http portal.acm.org citation.cfm?coll GUIDE&dl GUIDE&id 226647 Chandra and Toueg. Unreliable failure detectors for reliable distributed systems. JACM 43 2 225 267, 1996 . http pine.cs.yale.edu pinewiki FailureDetectors Course notes at Yale on failure detectors . Computer stub Category Distributed computing Category Fault tolerant computer systems ... more details
Failure rate is the frequency with which an engineered system or component fails, expressed for example ... in reliability engineering . The failure rate of a system usually depends on time, with the rate varying over the life cycle of the system. For example, an automobile s failure rate in its fifth year of service may be many times greater than its failure rate during its first year of service. One ... is often reported instead of the failure rate. This is valid and useful if the failure rate may be assumed ... where failure rate needs to be managed, in particular for safety systems. The MTBF appears ... failure can be neglected and the likelihood of failure remains constant with respect to time, the failure ... reliability needs and practices. Failure rates are important factors in the insurance, finance ... of applications. Failure rate in the discrete sense The failure rate can be defined as the following .... MacDiarmid, et al. Although the failure rate, math lambda t math , is often thought of as the probability that a failure occurs in a specified interval given no failure before time math t math , it is not actually a probability because it can exceed 1. Erroneous expression of the failure rate ... systems and multiple systems with non constant failure rates or different operation times. It can ... function math R t math , the probability of no failure before time math t math . Failure rate t f t R t , where f t is the time to first failure distribution and R t is 1 f t math lambda frac R t 1 .... The failure rate t function is a CONDITIONAL probability of failure DENSITY function. The condition is that the failure has not occurred at time t. Hazard rate and ROCOF rate of occurrence of failures is often incorrectly seen as the same and equal to the failure rate. And literature is even ... a failure rate. ROCOF is used for repairable systems only. In practice not many serious errors are made due to this confusion although this statement is hard to validate... . Failure rate in the continuous ... more details
Encyclopedia
top
