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1st Workshop on Large Foundation Models for Educational Assessment

作者： Gao, Rujun Guo, Xiaosu Li, Xiaodi Narayanan, Arun Balajiee Lekshmi Thomas, Naveen Srinivasa, Arun R. J. Mike Walker’66 Department of Mechanical Engineering Texas A&M University United States Computer Science Department University of Texas Dallas United States Intelligent Systems Program University of Pittsburgh United States Department of Artificial Intelligence and Informatics Mayo Clinic United States

This study explores the feasibility of using large language models (LLMs), specifically GPT-4o (ChatGPT), for automated grading of conceptual questions in an undergraduate mechanical engineering course. We compared the grading performance of GPT-4o with that of human teaching assistants (TAs) on ten quiz problems from the MEEN 361 course at Texas A&M University, each answered by approximately 225 students. Both the LLM and TAs followed the same instructor-provided rubric to ensure grading consistency. We evaluated performance using Spearman’s rank correlation coefficient and Root Mean Square Error (RMSE) to assess the alignment between rankings and the accuracy of scores assigned by GPT-4o and TAs under zero- and few-shot grading settings. In the zero-shot setting, GPT-4o demonstrated a strong correlation with TA grading, with Spearman’s rank correlation coefficient exceeding 0.6 in seven out of ten datasets and reaching a high of 0.9387. Our analysis reveals that GPT-4o performs well when grading criteria are straightforward but struggles with nuanced answers, particularly those involving synonyms not present in the rubric. The model also tends to grade more stringently in ambiguous cases compared to human TAs. Overall, ChatGPT shows promise as a tool for grading conceptual questions, offering scalability and consistency. © 2024 R. Gao1, X. Guo2, X. Li4, A.B.L. Narayanan3, N. Thomas1 & A.R. Srinivasa1.

关键词： Mean square error

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Linearization of two-state thruster models 5

Linearization of two-state thruster models

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5th International Conference on Mathematics: Pure, Applied and Computation, ICoMPAC 2019

作者： Adzkiya, Dieky Nurhadi, Hendro Herlambang, Teguh Department of Mathematics Institut Teknologi Sepuluh Nopember Indonesia Department of Industrial Mechanical Engineering Institut Teknologi Sepuluh Nopember Indonesia Center of Excellence for Mechatronics and Industrial Automation Research Center Institut Teknologi Sepuluh Nopember Indonesia Study Program of Information Systems Universitas Nahdlatul Ulama Surabaya Indonesia

A thruster is a device used for station keeping, attitude control, in the reaction control system, or long-duration, low-thrust acceleration. Thruster is one of the main components in autonomous surface vehicle. In this paper, we discuss the linearization of two-state thruster model by using the Jacobian method. © Published under licence by IOP Publishing Ltd.

关键词： Linearization

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Help on SOS

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IEEE CONTROL systems MAGAZINE 2010年第4期30卷 18-23页

作者： [Anonymous] University of California at Berkeley (UCB) Mechanical Engineering Department United States California Institute of Technology United States Aerospace Engineering and Mechanics Department University of Minnesota United States Control Science and Dynamical Systems Program University of Minnesota United States

Andy Packard, an expert from University of California at Berkeley (UCB) mechanical engineering Department shares views on the use of sum-of-squares (SOS) methods to determine the region of attraction (ROA). SOS applies to polynomials in several real variables and a polynomial is a finite linear combination of monomials. The ROA can be visualized by simulating the system from many initial conditions and plotting the trajectories in a phase plane plot for systems with two or three states. SOS techniques can be used to perform nonlinear analyses, including computation of input/output gains, estimation of reachable sets, and computation of robustness margins. The approaches that apply to SOS methods includes the computational requirements that grow rapidly in the number of variables and polynomial degree, which roughly limits SOS-based analysis to systems with at most eight to ten states, one to two inputs, and polynomial vector fields of degree 3.

关键词： Polynomials

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The P3E2 project: The introduction, implementation and evaluation of engineering design integrated across the middle school curriculum

The P3E2 project: The introduction, implementation and evalu...

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2010 ASEE Annual Conference and Exposition

作者： Pizziconi, Vincent Haag, Susan Ganesh, Tirupalavanam Cozort, Lynn Krause, Stephen Tasooji, Amaneh Ramakrishna, B.L. Meldrum, Deirdre Lunt, Brian Valdez, Albert Yarbrough, Victoria Harrington Bioengineering Program Fulton School of Engineering Arizona State University United States Research and Evaluation for CRESMET Arizona State University United States Department of Engineering Education Arizona State University United States Department of Academic Operations School of Mechanical Aerospace Chemical and Materials Engineering Arkansas State University United States School of Materials Arizona State University United States Materials Program Fulton School of Engineering Arizona State University United States Center for Ecogenomics Biodesign Institute United States Ira A. Fulton Schools of Engineering Arizona State University United States Harrington Bioengineering Program School of Biological and Health Systems Engineering Arizona State University United States

The Partnership, Pathway, and Pipeline for engineering Education (P 3E2) Project is an exploratory collaboration between ASU engineering faculty and Santan Junior High School teachers from a broad range of subjects and local community members aimed at engaging middle school students in real world and grade-relevant engineering activities as a way of enriching the value of their STEM education as it relates to STEM careers and their broad societal relevance. Central to the P3E2 project is the introduction of engineering design across the curricula via the implementation of the engineering design process through engineering service-learning projects that are intended to facilitate integrated learning of science, math, social studies and language arts. Such STEM-based integrated activities have been co-developed in partnership with middle school teachers and are designed to engage students and captivate their interest while promoting problem-solving and entrepreneurial skills by addressing real world needs in their local communities. This one-year pilot project consisted of four key phases that were implemented in nearly equal quarters, i.e., (a) the creation of a vibrant partnership to assess, motivate and inform teachers and counselors about engineering and its societal connections, workforce barriers, and curricular relevance, (b) the development of a viable education pathway to successfully engage 8th grade students in the full spectra of STEM-based learning that captivate their interest through integrated activities that span across science, mathematics, language arts and social studies, (c) the implementation of semester-long science and engineering fair projects chosen by students who were mentored by ASU engineering undergraduate and graduate students and (d) the evaluation of the P3E2 program effectiveness using designated assessment tools that were developed and administered to the teachers and students at the middle school. The major findings and the lessons

关键词： Students

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Spatial light source design for depth direction coherence control

Spatial light source design for depth direction coherence co...

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IEEE PhotonicsGlobal@Singapore, IPGC

作者： Dong Wei Hirokazu Matsumoto Global Center of Excellence Program-Mechanical Systems Innovation School of Engineering University of Tokyo Bunkyo Tokyo Japan Department of Precision Engineering University of Tokyo Bunkyo Tokyo Japan

A new scheme for designing a spatial light source for depth direction coherence control is proposed. This method is based on a combination of spatial coherence phenomena and the superposition principle. A computer-generated light source is projected onto a moving diffuser in order to realize multiple coherence peaks in the depth direction by synthesizing the longitudinal coherence function. Using this light source, we can shape a coherence function with multiple peaks, which are equidistant and have different strengths for distinguishability. This method may provide a new way of performing long-range depth direction measurements.

关键词： Spatial coherence

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Effects of Wind Stresses and Progressive Waves on Surf-Zone Currents

Effects of Wind Stresses and Progressive Waves on Surf-Zone ...

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Novel Intelligent and Leading Emerging Sciences Conference (NILES)

作者： Mohamed Elshabrawy Osama Khalid Mamdouh Zaki Khaled Fasseh Mahmoud E. Said Faculty of Engineering Cairo University Giza Egypt Mechanical Engineering Program School of Engineering and Applied Sciences Nile University Egypt Smart Engineering Systems Research Center (SESC) Nile University Giza Egypt

In this paper, A numerical model based on the shallow water equations is derived to study the combined effects of wind and progressive gravity waves on surf-zone currents. The wind has temporal and spatial variations. The combined effects of spatially and temporal varying wind and waves on the surf-zone currents are investigated by considering different wave incident angles and wind stresses. Numerical results of the current distribution demonstrate the role of the basin topography, coastal configuration and the combined effect of wave radiation and wind stresses on the surf-zone currents distribution. Also, the water surface elevation emphasizes the role of the pressure gradient force due to the non-penetration condition at the coastal boundary.

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mechanical Properties of Nature Graphite Compacts Electroplated by Copper

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AIP Conference Proceedings 2009年第1期1169卷 93-100页

作者： Chan‐Chao Wen Hung Tsou Chia‐Hung Pai Wen‐Shyong Kuo aPh.D. Program in Mechanical and Aeronautical Engineering Feng Chia University 100 WenHwa Rd Seatwen Taichung Taiwan bDepartment of Aerospace and systems Engineering Feng Chia University 100 WenHwa Rd Seatwen Taichung Taiwan

This work examines the processing and mechanical properties of graphite compacts electroplated by a copper layer. Natural graphite (NG) flakes have been compressed to make graphite compacts. A copper electrodeposit has been applied to the surface of the graphite compact in order to reinforce the mechanical properties and prevent the graphite particles from peeling off. The natural graphite flakes were stacked layer by layer in order within the graphite compact. The effects of different electroplating conditions on the mechanical properties of the graphite compacts were studied. The density of the compact reaches to a limit value when the pressure was above 100 MPa. The tests indicated that the compressive, flexural and shear strengths increase at least 150% with the copper layer. The damage mechanisms in the compacts were investigated by using a scanning electron microscopy.

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Characterizing cellular mechanical phenotypes with mechanonode-pore sensing

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Microsystems & Nanoengineering 2018年第1期4卷 438-449页

作者： Junghyun Kim Sewoon Han Andy Lei Masaru Miyano Jessica Bloom Vasudha Srivastava Martha R.Stampfer Zev J.Gartner Mark A.LaBarge Lydia L.Sohn Department of Mechanical Engineering University of California at BerkeleyBerkeleyCA 94720-1740USA Department of Bioengineering University of California at BerkeleyBerkeleyCA 94720-1762USA Department of Population Sciences Beckman Research InstituteCity of HopeDuarteCA 91010USA Department of Pharmaceutical Chemistry University of CaliforniaSan FranciscoSan FranciscoCA 94143USA Biological Systems and Engineering Division Lawrence Berkeley National LaboratoryCA 94720USA Graduate Program in Bioengineering University of CaliforniaBerkeleyand University of CaliforniaSan FranciscoBerkeleyCA 94720USA

The mechanical properties of cells change with their differentiation,chronological age,and malignant ***,these properties may be useful label-free biomarkers of various functional or clinically relevant cell ***,we demonstrate mechano-node-pore sensing(mechano-NPS),a multi-parametric single-cell-analysis method that utilizes a four-terminal measurement of the current across a microfluidic channel to quantify simultaneously cell diameter,resistance to compressive deformation,transverse deformation under constant strain,and recovery time after *** define a new parameter,the whole-cell deformability index(wCDI),which provides a quantitative mechanical metric of the resistance to compressive deformation that can be used to discriminate among different cell *** wCDI and the transverse deformation under constant strain show malignant MCF-7 and A549 cell lines are mechanically distinct from non-malignant,MCF-10A and BEAS-2B cell lines,and distinguishes between cells treated or untreated with cytoskeleton-perturbing small *** categorize cell recovery time,ΔT_(r),as instantaneous(ΔTr~0 ms),transient(ΔT_(r)≤40 ms),or prolonged(ΔT_(r)>40 ms),and show that the composition of recovery types,which is a consequence of changes in cytoskeletal organization,correlates with cellular *** the wCDI and cell-recovery time,mechano-NPS discriminates between sub-lineages of normal primary human mammary epithelial cells with accuracy comparable to flow cytometry,but without antibody ***-NPS identifies mechanical phenotypes that distinguishes lineage,chronological age,and stage of malignant progression in human epithelial cells.

关键词： microfluidics mechanical phenotyping node-pore sensing biosensors label-free

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Economic modeling of a seawater pumped-storage system in the context of São Miguel

Economic modeling of a seawater pumped-storage system in the...

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2008 IEEE International Conference on Sustainable Energy Technologies, ICSET 2008

作者： Pina, André Ioakimidis, Christos S. Ferrão, Paulo Sustainable Energy Systems within the MIT Portugal Program and the Centre for Innovation Technology and Policy Research at Instituto Superior Técnico Technical University of Lisbon Portugal Department of Mechanical Engineering at Instituto Superior Técnico Technical University of Lisbon with the Centre for Innovation Technology and Policy Research Av. Rovisco Pais 1049-001 Lisboa Portugal Centre for Innovation Department of Mechanical Engineering at Instituto Superior Técnico Technical University of Lisbon Portugal

ISBN: (纸本)9781424418886

The energy situation in remote islands is becoming critical with high fuel import costs preventing the islands from developing at a faster pace. São Miguel is an island located in the middle of the Atlantic with extensive renewable resources whose utilization is limited by low base load levels and lack of storage facilities. Using an economic optimization model, this work suggests using a seawater pumped-storage system to increase the penetration of renewable energy in the system. Several scenarios are analyzed and compare to determine the sensitivity of the solution and determine if it is a good option. © 2008 IEEE.

关键词： Seawater

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Leveraging viscous peeling in soft actuators and reconfigurable microchannel networks

arXiv

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arXiv 2019年

作者： Salem, Lior Gamus, Benny Or, Yizhar Gat, Amir D. Technion Autonomous Systems Program Technion − Israel Institute of Technology Haifa Israel Faculty of Mechanical Engineering Technion − Israel Institute of Technology Haifa Israel

The research fields of microfluidics and soft robotics both involve complex small-scale internal channel networks, embedded within a solid structure. This work examines leveraging viscous peeling as a mechanism to create and activate soft actuators and microchannel networks, including complex elements such as valves, without the need for fabrication of structures with micron-scale internal cavities. We consider configurations composed of an internal slender structure embedded within another elastic solid. Pressurized viscous fluid is introduced into the interface between the two solids, thus peeling the two elastic structures and creating internal cavities. Since the gap between the solids is determined by the externally applied pressure, the characteristic size of the fluidic network may vary in time and be much smaller than the resolution of the fabrication method. This work presents a model for the highly nonlinear elastic-viscous dynamics governing the flow and deformation of such configurations. Fabrication and experimental demonstrations of micron-scale valves and channel-networks created from millimeter scale structures are presented, as well as the transient dynamics of viscous peeling based soft actuators. The experimental data is compared with the suggested model, showing very good agreement. Copyright © 2019, The Authors. All rights reserved.

关键词： Microchannels

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