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2017

Aggarwal, K., Timbers, F., Rutgers, T., Hindle, Abram, Stroulia, E., Greiner, R.

Bug deduplication, ie, recognizing bug reports that refer to the same problem, is a challenging task in the software-engineering life cycle. Researchers have proposed several methods primarily relying on information-retrieval techniques. Our work motivated by the intuition that domain knowledge can

provide the relevant context to enhance effectiveness, attempts to improve the use of information retrieval by augmenting with software-engineering knowledge. In our previous work, we proposed the software-literature-context method for using software-engineering literature as a source of contextual

information to detect duplicates. If bug reports relate to similar subjects, they have a better chance of being duplicates. Our method, being largely automated, has a potential to substantially decrease the level of manual effort involved in conventional techniques with a minor trade-off in accuracy. In this

2018

Hindle, Abram, Onuckzo, C.

Bug deduplication or duplicate bug report detection is a hot topic in software engineering information retrieval research, but it is often not deployed. Typically to de-duplicate bug reports developers rely upon the search capabilities of the bug report software they employ, such as Bugzilla, Jira

, or Github Issues. These search capabilities range from simple SQL string search to IR-based word indexing methods employed by search engines. Yet too often these searches do very little to stop the creation of duplicate bug reports. Some bug trackers have more than 10% of their bug reports marked as

duplicate. Perhaps these bug tracker search engines are not enough? In this paper we propose a method of attempting to prevent duplicate bug reports before they start: continuously querying. That is as the bug reporter types in their bug report their text is used to query the bug database to find duplicate

2022-06-01

Javad, Abedinilaksar Mohmmad, Jianming, Yang

Ring vibration analysis is more challenging than straight beams analysis. In straight beams, the structural deformations depend on rotational and translational displacements; however, in rings, in addition to these, they also depend on the coupled tangential displacement caused by the curvature of

frequencies and associated mode shapes of a ring under general boundary conditions. Both Euler-Bernoulli and Timoshenko theories are used in this work, and the corresponding results are compared. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.

2022-06-01

Saleh, Menna A., Kempers, Roger, Melenka, Garrett W.

Smart materials with sensing capabilities are an exciting new technology that will impact many applications, including structural health monitoring (SHM), biomedical implants, wearable sensors, automotive, and actuators. Strain sensors (piezoresistive material) for SHM can be used to measure the in

-situ deformation by integrating the structural and sensing function into one component. Conductive polymer composites are being developed for SHM due to their flexibility, low cost, and low processing temperature. However, these materials are usually not durable and are difficult to repair. This study

deformation and electrical resistance. Part of Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.

2003

Monzavi, H., Willard, L., Zhang, H., Boyko, R.F., Ranjan, A., Wishart, D.S., Sykes, B.D.

VADAR (Volume Area Dihedral Angle Reporter) is a comprehensive web server for quantitative protein structure evaluation. It accepts Protein Data Bank (PDB) formatted files or PDB accession numbers as input and calculates, identifies, graphs, reports and/ or evaluates a large number (>30) of key

structural parameters both for individual residues and for the entire protein. These include excluded volume, accessible surface area, backbone and side chain dihedral angles, secondary structure, hydrogen bonding partners, hydrogen bond energies, steric quality, solvation free energy as well as local and

2022-06-01

Attard, Erica, Antoun, Sylvie, Hatefraad, Pedram, Dworkin, Seth B.

stunted due to high initial costs, longer payback periods, and lesser return on investment. Helical steel piles, mainly used as structural foundations for buildings, have the potential to act as in-ground heat exchangers, producing higher efficiencies than conventional borehole systems at a lower cost

the results of the peak and steady state capacity tests as well as the limitations experienced. Part of Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.

2023-09-01

Ye, Haoran, Shi, Yang, Xu, Ben Bin, Guo, Zhanhu, Fan, Wei, Zhang, Zhongfeng, Mulvihill, Daniel M., Zhang, Xuehua, Shi, Pengju, He, Ximin, Ge, Shengbo

(470.5 MPa) and flexural strength (539.5 MPa), establishing a robust structural basis for the materials. Meanwhile, BC-CaCl2 shows good water resistance, thermal conductivity, thermal stability, UV resistance, corrosion resistance, and antibacterial properties. BC-CaCl2 represents a viable alternative to

petrochemical-based materials. Its potential application areas include waterproof enclosure structure of buildings, indoor underfloor heating, outdoor UV resistant protective cover, and anti-corrosion materials for installation engineering, and so forth.

2018-07-30

Xu, Yang, Caldo, Kristian Mark P., Pal‐Nath, Dipasmita, Ozga, Jocelyn, Lemieux, M. Joanne, Weselake, Randall J., Chen, Guanqun

into seed TAG and thus have been considered as the key targets for engineering oil production. Here, we summarize the most recent knowledge on DGAT and PDAT in higher plants and microalgae, with the emphasis on their physiological roles, structural features, and regulation. The development of various

metabolic engineering strategies to enhance the TAG content and alter the fatty‐acid composition of TAG is also discussed.

2020

Bangash, A., Sahar, H., Hindle, Abram, Ali, K.

Researchers in empirical software engineering often make claims based on observable data such as defect reports. Unfortunately, in many cases, these claims are generalized beyond the data sets that have been evaluated. Will the researcher’s conclusions hold a year from now for the same software

conclusion stability, empirical software engineering researchers should limit their claims of performance within the contexts of evaluation, because broad claims about defect prediction performance might be contradicted by the next upcoming release of a product under analysis.

2019-01-31

Xiaochao Xue, Ruixiang Blake Zheng, Akihiko Koizumi, Ling Han, John S. Klassen, Todd L. Lowary

Mycobacteria, including the human pathogen Mycobacterium tuberculosis, produce a complex cell wall that is critical for their survival. The largest structural component of the cell wall, the mycolylarabinogalactanpeptidoglycan complex, has at its core a galactan domain composed of D

-galactofuranose residues. Mycobacterial galactan biosynthesis has been proposed to involve two glycosyltransferases, GlfT1 and GlfT2, which elongate polyprenol-pyrophosphate linked glycosyl acceptor substrates using UDP-galactofuranose as the donor substrate. We here report the first chemical synthesis of GlfT1

and demonstrate a straightforward route for the preparation of such compounds. The work also provides additional support for the process by which this important glycan is biosynthesized using, for the first time, close structural analogs to the natural substrates.