196,015 research outputs found
Expert-informed neural network (EINN) for the forming depth prediction from a small-scale sheet metal forming database
No full textIt is well established that supervised machine learning (SML) models often perform poorly when presented with new inputs outside their latent space, due to misalignment with the features learned during the training process. Although Physics-Informed Neural Networks (PINNs) have demonstrated promising results, their reliance on physics-based partial differential equations (PDEs) limits their applicability in manufacturing engineering, where PDEs are not easily definable. To overcome this challenge, this work introduces an Expert-Informed Neural Network (EINN), where PDEs are numerically derived based on engineering expertise and incorporated into the backpropagation scheme to enhance extrapolation accuracy. To evaluate the EINN architecture, a dataset comprising 15 finite element analyses (FEA) and 9 cold-warm stamping experiments on 0.1 mm thick pure titanium (Ti) sheets was employed. The EINN was benchmarked against two SML models, Extreme Gradient Boosting (XGB) and Deep Neural Networks (DNN) demonstrating similar training and validation scores with both benchmark models while outperforming them in predicting the forming depth limit in more complex scenarios beyond its original latent space, achieving an average accuracy improvement of over 25%
The Effect of Group Logotherapy on Spirituality and Death Anxiety of Patients with Cancer: An Open-Label Randomized Clinical Trial
No full textBackground: Cancer is one of the most important health problems, which cause anxiety. Owing to physical and psychological problems it may lead to thinking about impending death. Logotherapy is the most powerful method to treat problems that exist in nature.Objectives: This study aimed to determine the effect of group logotherapy on spirituality and death anxiety in patients with cancer.Methods: This randomized clinical trial study was done on patients with cancer referred to Imam Khomeini Hospital in Sari in 2017. Sixty-four eligible patients were selected from the oncology clinic using convenience sampling method. Patients were randomly allocated to the control and intervention groups (n = 32). Group logotherapy was done for the intervention group for five weeks. Data was gathered through a questionnaire, including demographic, Templer Death Anxiety Scale (DAS), and Spirituality Questionnaire (SQ) one week before and one week after the intervention. Data were analyzed in SPSS V.16 software using independent t-test, Wilcoxon, and Mann-Whitney U test. The significant level was considered 0.05.Results: There were no significant differences in death anxiety and spirituality scores between the two groups at baseline, indicating that the two groups were matched in terms of death anxiety and spirituality. Before the logotherapy, the mean score of death anxiety in both groups was high (more than 8). After the logotherapy, the mean and SD of death anxiety score in the intervention and control groups were 7.14 +/- 4.12 and 9.76 +/- 2.64, respectively, there were statistically significant differences in death anxiety scores between the groups (P < 0.05). There were statistically significant differences between the mean of spirituality score in the intervention group before and after the logotherapy (P < 0.05), but it was not significant in the control group, indicating that group logotherapy was effective in increasing the spirituality score.Conclusions: Based on the findings, group logotherapy can increase the spirituality score of the patients. Moreover, the logotherapy may result in decreasing death anxiety, and spirituality-oriented meetings may be beneficial for patients
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
Prevalence of malnutrition among elderly people in Iran: Protocol for a systematic review and meta-analysis
No full textBackground: Malnutrition occurs following a decrease or an imbalance in the absorption of energy, protein, vitamins, and minerals because of numerous factors. Thus, it has serious and life-threatening consequences. To plan for this issue, we need information on the burden of this problem. Objective: The aim of this study is to determine the prevalence of malnutrition among elderly people in Iran. Methods: For the purpose of this study, papers, including original articles, theses, and conference proceedings on the prevalence of malnutrition among people aged 60 years and above, and have been published in national and international journals until September 2018 will be included without any language limitation. The following keywords along with their synonyms in Persian will be used in the literature search: malnutrition, elderly, and Iran. At first, the screening process will be conducted based on our inclusion and exclusion criteria. Then, the full text of the remaining articles will be read carefully, and eligible articles will be selected according to the objectives of the study. Next, the methodological quality of the selected papers will be reviewed, and the required information will be extracted from those with acceptable quality. Finally, a meta-analysis will be performed using the Stata software (version 14) when optimum criteria are met. It should be noted that all stages of screening, selection, quality assessment of primary studies, and data extraction will be performed by 2 reviewers independently. Results: This review is ongoing and will be completed at the end of 2019. Conclusions: This review aims to provide comprehensive evidence about the prevalence of malnutrition among elderly people in Iran. This can help Iranian health managers and policy makers make informed decisions for preventing malnutrition and promoting the health status of elderly people. © Homeira Khoddam, Sepideh Eshkevarlaji, Mahin Nomali, Mahnaz Modanloo, Abbas Ali Keshtkar
Intern experience at CH���M Hill, Inc.: an internship report
No full textIncludes author's vita"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirement for the degree of Doctor of Engineering."Includes bibliographical referencesA review of the author's internship experience with CH���M HILL, Inc.
during the period September 1975 through May 1976 is presented. During this nine month
internship the author worked as an Engineer II in the Industrial Processes discipline of this
large consulting engineering firm... The author's prime responsibility was as one of three
lead design engineers on the design of a large wastewater treatment facility for a pulp mill
in Hoquiam, Washington owned by ITT Rayonier Inc. The work generally consisted of the design
of individual treatment units and associated piping and pumping. The purpose of the project
was to provide wastewater treatment capabilities that would satisfy the effluent limitations
(standards) imposed upon the mill by the State of Washington Department of Ecology and the
U.S. Environmental Protection Agency. The author's assignment also entailed necessary
interaction with the project manager and other CH���M HILL design engineers and support staff
members, the client's representatives, and representatives of two other consulting engineering
firms working on the project. Thus, the internship position at CH���M HILL provided considerable
experience coordinating the author's work with the work of other engineers, guiding the design
and administrative efforts of a support staff, and interacting regularly with the client and
other consulting firms. This broad exposure to a variety of engineering and organizational
problems provided a valuable educational experience
Transition to turbulence in a qblique shock-wave/boundary-layer interaction at M=15
No full textDirect numerical simulations are carried out for different forcing techniques to trigger transition during the interaction between an oblique shock-wave and a laminar boundary-layer at M = 1.5. Three forcing methods are used: a) forcing of oblique unstable modes, whose shape and behaviour are determined by the local linear stability theory, b) broadband free-stream acoustic disturbances, and c) a cold plasma flow control device. While the oblique-mode breakdown is dominant for low-amplitude forcing, long streaky structures drive the transition process in a high-amplitude disturbance environment. LES are also performed on the experimental setup by the Institute of Theoretical and Applied Mechanics (ITAM) from Novosibirsk State University with cold plasma actuation. As well as the disturbance type, the effect of Reynolds number and forcing amplitude will be investigated
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