Software evolution is made up of changes carried out during software maintenance. Such accumulation of changes produces substantial modifications in software projects and therefore vast amounts of relevant facts that are useful for the understanding and comprehension of the software project for making additional changes. In this scenario, evolutionary visual software analytics is aimed to suppo...

Traditional scheduling problems with the batch processing machines (BPM) assume that machines are continuously available, and no time is needed for their preventive maintenance (PM). In this paper, we study a realistic variant of flowshop scheduling which integrates flow shop batch processing machines (FBPM) and preventive maintenance for minimizing the makespan. In order to tackle the given pr...

earth pressure balance tunnel boring machines (epb-tbms) are favorably applied in urban tunneling projects. despite their numerous advantages, considerable delays and high maintenance cost are the main disadvantages these machines suffer from. reliability, availability, and maintainability (ram) analysis is a practical technique that uses failure and repair dataset obtained over a reasonable ti...

The research in this thesis addresses the subject of regression testing. Emphasis is placed on developing a technique for selective revalidation which can be used during software maintenance to analyse and retest only those parts of the program affected by changes. In response to proposed program modifications, the technique assists the maintenance programmer in assessing the extent of the prog...

many serious accidents have happened in the world, in which systems have been large-scale and complex, and caused heavy damage and a social sense of instability. furthermore, advanced nations have almost finished public infrastructure and rushed into a maintenance period. since maintenance is more important than production and construction, then more maintenance for environmental considerations...

A number of psychological approaches to alleviating psychotic symptoms have been reported in the literature. The latest technique among them is cognitive therapy (CT). This paper describes an open trial that makes use of cognitive psychotherapy to treat chronic drug resistant delusions (more than 2 years duration) in 20 patients with schizophrenia. The positive response of all patients with the...

Researchers focused on activities such as clone maintenance to assist the programmers. Refactoring is a well-known process to improve the maintainability of the software. Program refactoring is a technique to improve readability, structure, performance, abstraction, maintainability, or other characteristics by transforming a program. This paper contributes to a more unified approach for the pha...

Clustering is an important technique in mobile ad hoc networks to provide a framework for management and reduce the overhead of route acquisition. Many clustering techniques had been proposed in the literature, but few of them had considered the status of network from the aspect of stability. In this paper, a stability-based clustering (SBC) technique is proposed. SBC only constructs stable eno...

Although there has been a demarcation between development and evolution (maintenance) of software, this is increasingly irrelevant as fewer and very fewer systems are completely new. Additionally, once a software engineer understands a system's structure, it is difficult to preserve this understanding, because the structure tends to change during maintenance. So Software engineers greatly empha...

BACKGROUND The ex utero intrapartum treatment (EXIT) procedure is a technique designed to establish an airway at the time of delivery in fetuses at risk of airway obstruction and requires maintenance of uterine relaxation to continue placental perfusion and prevent placental separation. We describe the use of intravenous nitroglycerin to maintain uterine relaxation during the EXIT procedure. ...