Damage Tolerance Assessment of Multi-Hull Aluminum Vessels Using Global Finite Element Methods

As aluminum high-speed multi-hulls continue to grow in size, capacity and operational sea state, a need is growing to understand the damage tolerance of these structures. This paper presents a Linear Elastic Fracture Mechanics (LEFM) approach to performing damage tolerance assessments of aluminum hull structures using the hydrodynamic analysis and global finite element model developed as part of a class Dynamic Loading Approach (DLA) notation. The LEFM approach is used to calculate the stress intensity factor (K) and the critical crack length throughout the model to screen the entire hull structure and identify fracture critical locations. This paper also investigates the use of elastic-plastic fracture mechanics to predict potential critical crack growth locations, rates, and directions. Fracture critical locations identified and visualized through the analysis provide the ship designer with tools to develop damage tolerant structures. The results of the analysis can also assist owners and regulatory bodies in developing structural inspection and repair plans.

Exploring the Effects of Mediation in Group-Dynamic Assessment (G-DA) Approach for an Iranian Undergraduate EFL Writing Course

The present study employed a cumulative format of Group Dynamic Assessment (G-DA), an assessment approach that integrates instruction into assessment, and adopted an interactionist approach to DA to conduct a semester-long mediation program in a writing course, which aimed at improving the writing ability of 15 (8 males and seven females) intermediate proficiency level sophomore students of English Language and Literature, in a State University in Iran. The students’ performances on non-dynamic writing pre- and post-tests and nine in-class dynamic writing tasks, completed during the DA sessions, were compared using independent samples t-test and mixed between-within subjects analysis variance (ANOVA), respectively. More specifically, the participants were divided into the two groups of more-skilled and less-skilled student writers, and then their performance was compared. The results indicated that the mediation offered had been highly effective in improving the writing competence of both groups of more- and less-skilled writers. They have been equally able to benefit from the mediation received and resolve their problems in writing. In addition, the dominant patterns of tutor mediational and learner reciprocity moves from a recorded DA intervention session were identified to see how they can lead to the learners’ writing development.

A new technique for understanding large-scale software systems

Comprehending a huge execution trace is not a straightforward task due to the size of data to be processed. Detecting and removing utilities are useful to facilitate the understanding of software and decrease the complexity and size of the execution trace. The goal of this study is to develop a novel technique to minimize the complexity and the size of traces by detecting and removing utilities from the execution trace of object-oriented software. Two novel utility detection class metrics were suggested to decide the degree that a specific class can be counted as a utility class. Dynamic coupling analysis forms the basis for the proposed technique to address object-oriented features. The technique presented in this study has been tested by two case studies to evaluate the effectiveness of the proposed technique. The results from the case studies show the usefulness and effectiveness of our technique.

Multiple Alignment of Promoter Sequences from the Human Genome

A new algorithm for multiple alignment of nucleotide sequences of MAHDS has been developed. A statistically significant multiple alignment of promoter sequences from the human genome was first created using this algorithm. Based on the constructed alignments, 25 classes of promoter sequences were created with the volume of each class exceeding 100 sequences. The classes of promoters can be used to search for promoter sequences in eukaryotic genomes. promoter, class, dynamic programming, human genome. The work was partially supported by the Russian Foundation for Basic Research (Grant no. 20-016-00057).

Dynamic Traffic Assignment under Multiple Vehicle Classes

This paper proposes a convergence point progression based arrangement abnormality figuring out for the multi-class dynamic traffic undertaking (DTA) difficulty which includes bodily traces using the plausibility of technique diploma. An extragradient framework that requires just pseudomonotonicity and Lipschitz improvement for get collectively is made to control the problem. We likewise gift a automobile truck association question, which imparts that enticing vans to travel or broadening the truck stream in a shape can enhance organize execution for cars the diploma that the immovable car journey time. Numerical fashions are set up to layout the centrality of considering specific vehicle sorts and their joint endeavors in a DTA model, the influences of various parameters at the occasion of the function, and the presentation of the course of movement figuring.Existing thoughts blowing site visitors project definitions necessarily assume the time-subordinate O-D excursion arrange and the time-subordinate structure route of motion to be known from the before for the whole finding out skyline. Notwithstanding, there's moreover a need to provide enduring manner statistics to organize clients below ATIS/ATMS whilst unexpected groupings in O-D desires in addition as structure attributes (for example most distant point decay on unequivocal relationship in attitude on occasions) take place. This paper demonstrates a transferring skyline device for preserving an eye out for the perpetual traffic project trouble, in which an ATIS/ATMS controller is needed to have O-D needs up to the existing time and area amongst time, and present moment and medium-time period assessments of destiny O-D needs. The mission issue is explained in semi predictable for a close by time period destiny period (or degree) to select a great manner embraced plot for customers coming into the shape sensibly for the brief move time variety. The next model is jumbled due to unfold everyday conditions portraying this issue. Two nuances are mentioned problem to whether an ability to reroute automobiles in tour exists. A moving skyline method approach benevolent to a semi steady usage of an change customer classes (MUC) time-subordinate traffic errand game-plan calculation created beforehand of time with the aid of the manufacturers is portrayed. Use issues are talked about from the point of view of ATIS/ATMS applications.