{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T18:53:48Z","timestamp":1780599228260,"version":"3.54.1"},"reference-count":28,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2021,8,23]],"date-time":"2021-08-23T00:00:00Z","timestamp":1629676800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Axioms"],"abstract":"<jats:p>In this paper, we study a reliability system subject to occasional random shocks hitting an underlying device in accordance with a general marked point process with position dependent marking. In addition, the system ages according to a linear path that eventually fails even without any external shocks that accelerate the total failure. The approach for obtaining the distribution of the failure time falls into the area of random walk analysis. The results obtained are in closed form. A special case of a marked Poisson process with exponentially distributed marks is discussed that supports our claim of analytical tractability. The example is further confirmed by simulation. We also provide a classification of the literature pertaining to various reliability systems with degradation and shocks.<\/jats:p>","DOI":"10.3390\/axioms10030199","type":"journal-article","created":{"date-parts":[[2021,8,23]],"date-time":"2021-08-23T10:24:17Z","timestamp":1629714257000},"page":"199","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Random Walk Analysis in a Reliability System under Constant Degradation and Random Shocks"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6718-1526","authenticated-orcid":false,"given":"Jewgeni H.","family":"Dshalalow","sequence":"first","affiliation":[{"name":"Department of Mathematical Sciences, Florida Institute of Technology, College of Engineering and Science, Melbourne, FL 32940, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5524-629X","authenticated-orcid":false,"given":"Ryan T.","family":"White","sequence":"additional","affiliation":[{"name":"Department of Mathematical Sciences, Florida Institute of Technology, College of Engineering and Science, Melbourne, FL 32940, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3725","DOI":"10.1016\/j.jspi.2011.06.008","article-title":"Mis-specification analyses of gamma and Wiener degradation processes","volume":"141","author":"Tsai","year":"2011","journal-title":"J. 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