8,795 research outputs found
ArguLens: Anatomy of Community Opinions On Usability Issues Using Argumentation Models
No full textIn open-source software (OSS), the design of usability is often influenced by the discussions among community members on platforms such as issue tracking systems (ITSs). However, digesting the rich information embedded in issue discussions can be a major challenge due to the vast number and diversity of the comments. We propose and evaluate ArguLens, a conceptual framework and automated technique leveraging an argumentation model to support effective understanding and consolidation of community opinions in ITSs. Through content analysis, we anatomized highly discussed usability issues from a large, active OSS project, into their argumentation components and standpoints. We then experimented with supervised machine learning techniques for automated argument extraction. Finally, through a study with experienced ITS users, we show that the information provided by ArguLens supported the digestion of usability-related opinions and facilitated the review of lengthy issues. ArguLens provides the direction of designing valuable tools for high-level reasoning and effective discussion about usability
Applicability of Phase-Function Normalization Techniques for Radiation Transfer Computation
No full textThe applicability of recently-developed four phase-function (PF) normalization techniques for modeling radiation transfer in strongly anisotropic scattering media is intensively examined using the discrete-ordinate method. The three simple techniques via normalization of only the forward- and/or backward-scattering directions were shown to reduce normalization complexity whilst retaining diffuse radiation computation accuracy for Henyey-Greenstein (HG) PFs. For Legendre PFs, however, such simple techniques are found to result in unphysical negative PF value at one or few correction direction in some cases. Additionally, negative PF values can occur for these simple techniques for ballistic radiation transfer for both HG and Legendre PF types. If negative-intensity correction is applied, however, radiative heat transfer calculation can still converge regardless of the appearance of negative PF values. The relatively complex Hunter and Guo 2012 technique, in which normalization is realized through a correction matrix covering all discrete directions, is shown to be applicable for diffuse and ballistic radiation for both PF types.Peer reviewed
sj-docx-1-npx-10.1177_1934578X231166778 - Supplemental material for Synthesis and Anticancer Activity of Ergosterol Peroxide Hybrids With Paclitaxel Side Chain Inducing Apoptosis in Human Hepatoma Carcinoma Cells
No full textSupplemental material, sj-docx-1-npx-10.1177_1934578X231166778 for Synthesis and Anticancer Activity of Ergosterol Peroxide Hybrids With Paclitaxel Side Chain Inducing Apoptosis in Human Hepatoma Carcinoma Cells by Xiaoshan Guo, Wenkang Ren, Zhen Lv, Gang Li, Hongling Li, Mingrui Sun, Xiaoming Li, Gang Chen, Zhiguo Zhang, Wenting Zhang and Ming Bu in Natural Product Communications</p
sj-pdf-1-jcb-10.1177_0271678X231167924 - Supplemental material for Preceding transient ischemic attack was associated with functional outcome after stroke thrombectomy: A propensity score matching study
No full textSupplemental material, sj-pdf-1-jcb-10.1177_0271678X231167924 for Preceding transient ischemic attack was associated with functional outcome after stroke thrombectomy: A propensity score matching study by Jiali Xu, Wenting Guo, Jin Ma, Qingfeng Ma, Jian Chen, Haiqing Song, Changhong Ren, Sijie Li, Yuchuan Ding, Wenbo Zhao and Xunming Ji in Journal of Cerebral Blood Flow & Metabolism</p
sj-doc-1-npx-10.1177_1934578X231175588 - Supplemental material for Novel Endoperoxide Steroid Derivatives Containing Thiazole Moiety as Potential Antitumor Agents: Design, Synthesis, and Cytotoxic Evaluation
No full textSupplemental material, sj-doc-1-npx-10.1177_1934578X231175588 for Novel Endoperoxide Steroid Derivatives Containing Thiazole Moiety as Potential Antitumor Agents: Design, Synthesis, and Cytotoxic Evaluation by Gang Li, Xiaoshan Guo, Wenkang Ren, Jiafeng Wang, Zhen Lv, Hongling Li, Mingrui Sun, Xiaoming Li, Gang Chen, Zhiguo Zhang, Wenting Zhang and Ming Bu in Natural Product Communications</p
Supplemental Material - Surgical Treatment is Still Recommended for Patients Over 75 Years with IA NSCLC: A Predictive Model Based on Surveillance, Epidemiology and End Results Database
No full textSupplemental Material for Surgical Treatment is Still Recommended for Patients Over 75 Years with IA NSCLC: A Predictive Model Based on Surveillance, Epidemiology and End Results Database by Cancer Control by Yafeng Liu, Wenting Zhang, Jing Wu, Wenyang Wang, Jiawei Zhou, Jianqiang Guo, Qingsen Wang, Xin Zhang, Jun Xie, Yingru Xing, and Dong Hu in Cancer Control</p
Flow and heat transfer inside a new diversion-type gas heating device
No full textThe present paper characterizes ethylene glycol flow and heat transfer inside a new diversion-type gas heating device. A 2-D natural convection heat transfer model was built and solved by the finite volume method with unstructured body-fitted grids. The numerical model was first validated through temperature comparison with experimental measurements in a conventional device structure. Then analyses and comparisons of the flow fields and temperature distributions with use of different guide plate structures were carried out. The numerical results show that using the guide plate structures can form better organized flow patterns that augment heat transfer. The heat required for heating up the gas passing through the heating device can be reduced by 3% via installing two guide plates.Peer reviewed
Reborn Translated: Xiaolu Guo as a World Author
No full textThis paper introduces the concept of “world author,” taking as its exemplar the Chinese British writer and filmmaker Xiaolu Guo. It investigates how Guo utilizes her bilingualism to construct and negotiate her creative agency, especially when dealing with the political and commercial forces imposed on diasporic authors. Through engaging with Rebecca Walkowitz’s idea of world literature as being “born translated,” I point out that the translational should not be limited to the thematic and representational arrangements internal to a given text. Instead, translation as movements between linguistic systems and media forms can generate multipleversions of a text, to the point that such translational multiplicity fundamentally challenges its supposed singularity. This argument is demonstrated with Guo’s self-translation of the stories of Fenfang and her filmic adaptation of the novel UFO in Her Eyes. Through these examples of what I call “translational rebirths,” I demonstrate the importance of paratextual details and intertextual connections between clusters of an author’s creative output for the interpretation and appreciation of l’oeuvre d’un auteur instead of une oeuvre d’art. This case study also shows the need for the academic debates on world literature to go beyond the singularity of texts and evaluative criteria of worldliness based on this assumption, so that the discipline can realize its full potential in accommodating multilingual transnational authors like Guo
3-D simulation of gases transport under condition of inert gas injection into goaf
No full textTo prevent coal spontaneous combustion in mines, it is paramount to understand O2 gas distribution under condition of inert gas injection into goaf. In this study, the goaf was modeled as a 3-D porous medium based on stress distribution. The variation of O2 distribution influenced by CO2 or N2 injection was simulated based on the multi-component gases transport and the Navier-Stokes equations using Fluent. The numerical results without inert gas injection were compared with field measurements to validate the simulation model. Simulations with inert gas injection show that CO2 gas mainly accumulates at the goaf floor level; however, a notable portion of N2 gas moves upward. The evolution of the spontaneous combustion risky zone with continuous inert gas injection can be classified into three phases: slow inerting phase, rapid accelerating inerting phase, and stable inerting phase. The asphyxia zone with CO2 injection is about 1.25~2.4 times larger than that with N2 injection. The efficacy of preventing and putting out mine fires is strongly related with the inert gas injecting position. Ideal injections are located in the oxidation zone or the transitional zone between oxidation zone and heat dissipation zone.Peer reviewed
Heat Transfer and Thermodynamic Processes in Coal-Bearing Strata Under Spontaneous Combustion Condition
No full textSimulations and experiments have been carried out to investigate heat transfer and thermodynamic processes in coal-bearing strata in order to quantitatively understand the development of underground coal fires under spontaneous combustion condition. With controlled temperature and under lean oxygen conditions, the thermodynamic parameters for coal oxidation at different stages are experimentally determined in combination with simultaneous thermal analysis. A combined heat transfer model of conduction, convection and radiation with finite reactions is developed for the porous coal and rocks. The temperature distributions in the coal and roof strata at different times are simulated based on the single- and two-stage kinetic models, respectively, and compared with field geophysical prospecting. Effects of oxidation kinetic properties due to coal metamorphism on propagation of coal fires are examined. It reveals that a significant step change exists during the thermal process of coal fire caused by two-stage oxidation, and the coal rank of occurrence directly determines the spontaneous combustion period of underground coal fire.Peer reviewe
- …
