cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18462/iir.thermag.2016.0178
title: On the rotating magnetocaloric effect in multiferroic RMn2O5 compounds.

description: Thanks to the strong magnetic anisotropy shown by RMn2O5 compounds, a large magnetocaloric effect can be induced (around 10 K) by rotating them in constant magnetic fields instead the standard magnetization-demagnetization method. Particularly, the TbMn2O5 single crystal reveals a giant rotating magnetocaloric effect (RMCE) under relatively low constant magnetic fields reachable by permanent magnets. On the other hand, it was found that the RMCE in RMn2O5 crystals strongly depends on the R3+ ion nature. Under a constant magnetic field of 2 T, the maximum rotating adiabatic temperature change exhibited by TbMn2O5 is
more than 5 times larger than that presented by HoMn2O5. The rare earth ion size could play a crucial role in the determination of the magnetic and magnetocaloric properties of RMn2O5 compounds through the modulation of exchange interactions via lattice distortions, a scenario that seems to be supported by Raman scattering.
DOI: 10.18462/iir.thermag.2016.0179
title: Active caloric regenerator cycles: an analytic element model.

description: We describe an analytic model for active caloric regenerator (ACR) cycles using any type of caloric material. An ACR element is defined which provides expressions for cooling power and work input directly without solving the governing partial differential equations for fluid and solid temperature. The ACR performance is determined by fundamental material properties such as specific heat and adiabatic temperature change in addition to the properties that define an effective passive regenerator. The ACR element includes losses due to conduction, convection, and depolarization. We demonstrate the predictive ability of the element model with comparisons of loss mechanisms in an ACR using a first order magnetocaloric material. We then show how the ACR element is used with regenerators made up of layers of different materials with a two-layer ACR example. In addition to providing a clear functional relationship for performance, the element model allows for fast screening of materials, design, and operating conditions.
DOI: 10.6073/pasta/05265cba89ea68dbb374eebdcaafddea
title: Surface and hyporheic water chemistry of the Tanana River
DOI: 10.6073/pasta/1d9e776eaf4bc771ba8b301b7aec16d5
title: Alaska Peatland Experiment: 2010-2011 Root Respiration Experiment Ecosystem Respiration Fluxes
DOI: 10.6073/pasta/f21c6b282b1db9f9e2c719565172741f
title: Alaska Peatland Experiment: 2010-2011 Root Respiration Experiment Percent Cover
DOI: 10.18462/iir.thermag.2016.0180
title: Magnetocaloric properties of Fe-Rh-(Z) (Z = Pd, Ni) alloys from ab initio and Monte Carlo calculations.

description: In this work, we theoretically investigated the magnetic and magnetocaloric properties of Fe-Rh-(Z) (Z = Pd, Ni) alloys by using the ab initio and Monte Carlo approaches. The equilibrium structural and magnetic reference states as well as the magnetic exchange coupling constants for both low- and high-temperature phases were determined by means of first-principles calculations. In order to obtain the temperature dependencies of magnetic and magnetocaloric properties, we used the Potts-Blume-Emery-Griffiths lattice-spin model with parameters obtained from ab initio calculations as input data. As the result, the temperature behaviors of magnetization, specific heat, magnetic entropy as well as magnetocaloric effect (ΔS and ΔTad) were obtained at the magnetic field change of 2 T by using the classical Monte Carlo routine. The obtained results are found in a good agreement with available experimental data.
DOI: 10.6073/pasta/19a7d19493c0df80f62ce9b6c0dd1b3f
title: Alaska Peatland Experiment: 2010-2011 Root Respiration Experiment Soil Descriptions
DOI: 10.6073/pasta/2b8b7be84d8adc73390d80bc16e9e71b
title: Alaska Peatland Experiment: 2010-2011 Root Respiration Experiment Vascular Green Area
DOI: 10.6073/pasta/4361902322b2134d580e151de0c44eef
title: Black spruce soil delta15N values from 31 sites centered around Fairbanks, AK collected in 2007.
DOI: 10.5281/zenodo.4036589
title: Fink enriched ZTF alerts (11&12/2019)

description: Alerts from ZTF public stream obtained between November and December 2019. These alerts have been processed by the Fink broker. We provide alerts that pass Fink's quality cuts and are enriched using our first science modules showcased in our paper. Additionally, we provide a csv file with TNS identified objects which are used in the Science Verification section of our paper.
DOI: 10.6073/pasta/573890219fd7ccb9cb8f2f449237b083
title: Survey of aspen leaf mining and leaf defenses, including foliar phenolic glycosides and extrafloral nectaries
DOI: 10.17632/w894d6w2gr.1
title: coastal engineering and management

description: In this study will be an assessment of the process of sedimentation that result from the interaction of waves, coastal currents, wind, contour Losari beach in Makassar South Sulawesi Province method approach Surface Water Modeling System (SMS ver. 8.0) and the overlay satellite image landsat 7-ETM year 1996 and 2002on Geogrhapic Information System (SIG). Suspended sediment spreding and seabed sediment change analysed by SMS 8.0.The first stage of the analysis had been done by set a limit on the boundary/training area are: longitude coordinates: 1190 21’ – 1190 25’ East and Latitude: 50 7’ – 50 13’ South. The boundary undergoes some adjustment at the both methods that used in this research. Suspended sediment samples taking began from around the delta until the JeneberangRiver (LS1 to LS7). The sediment measuring result was compared by suspended sediment from running result of module SMS (SED2-WES) and overlay analysis result of the image Landsat 7-ETM (1996 and 2002).The supreme current velocity had happened at the LS1(0.079 m/s)and LS2(0.001 m/s). Beside of those,LS4 and LS6 was between 0.00 - 0.03 m/s and thenLS3, LS5 and LS7 was between 0.00 – 0.019 m/s. The suspended sediment concentrationat each site observation had been increase with difference fluctuation according to the tides data. The sediment concentration accumulation until the end of the time step (72) at station LS1 = 8.63 ppm, LS2 = 6.34 ppm, LS3 = 3.28 ppm, LS4 = 3.79 ppm, LS5 = 1.69 ppm, LS6 = 0.94 ppm and LS7 = 0.60 ppm.Moreover the sediment classification resulted measurement result at each class could be getting in: LS1=14.30; LS2=17.00; LS3=3.65; LS4=11.42; LS5=9.12; LS6=5.54 and LS7=6.32. Whereas the result of analysis on landsat image overlay divided up into five classes for image year 1996 (class 1= 0, class 2= 0 – 4.74 ppm; class 3= 4.74-11.85 ppm; class 4= 11.85-12.91; class 5= 12.91-15.35; class 6= 15.35-22.46) and year 2002 (class 1= 0, class 2= 0 – 13.65 ppm; class 3= 13.65-13.98 ppm; class 4= 13.98-14.73; class 5= 14.73-15.59; and class 6= 15.59-18.84 ppm).
DOI: 10.6073/pasta/c4cdbaca847fe5cd519efab6a3c7e8dd
title: Known-fate survival information for radio-tagged snowshoe hares captured in Bonanza Creek Experimental Forest from June 2008 to November 2012
DOI: 10.6073/pasta/f058e77b9af7b5ff5644ca8bfd67d493
title: Stream water dissolved organic matter
DOI: 10.17632/t54gzzfgyw.1
title: Medical students at 18th century Coimbra University

description: List of all medical students at the Coimbra University, with specifics of the time they attended college, their region and "nationality".
DOI: 10.5281/zenodo.154180
title: Gaussian Polarizable-Ion Tight Binding (Supplemental Data)

description: <strong>This is a collection of input and output files for the publication below.</strong>

Abstract:

To interpret Ultrafast Dynamics experiments on large molecules, computer simulation is required due to the complex response to the laser field. We present a method capable of efficiently computing the static electronic response of large systems to external electric fields. This is achieved by extending the density-functional tight binding method to include larger basis sets and by multipole expansion of the charge density into electrostatically interacting Gaussian distributions. Polarizabilities for a range of hydrocarbon molecules are computed for a multipole expansion up to quadrupole order, giving excellent agreement with experimental values, with average errors similar to those from density functional theory, but at a small fraction of the cost. We apply the model in conjunction with the polarizable-point-dipoles model to estimate the internal fields in amorphous Poly(3-hexylthiophene-2,5-diyl).
description: {"references": ["Boleininger, M., Guilbert, A. A., & Horsfield, A. P. (2016). Gaussian polarizable-ion tight binding. The Journal of Chemical Physics, 145(14), 144103."]}
DOI: 10.5281/zenodo.4036588
title: Fink enriched ZTF alerts (11&12/2019)

description: Alerts from ZTF public stream obtained between November and December 2019. These alerts have been processed by the Fink broker. We provide alerts that pass Fink's quality cuts and are enriched using our first science modules showcased in our paper. Additionally, we provide a csv file with TNS identified objects which are used in the Science Verification section of our paper.
DOI: 10.17632/zmrxbpbcdb.1
title: Robert Pocock Herbarium

description: Contains all the data associated with the "Robert Pocock Herbarium Project" - a Heritage Lottery Funded citizen science project.
DOI: 10.5061/dryad.18j1h.2/1.2
title: Reflectance spectra

description: Reflectance spectra of the second egg-spot and the area above the egg-spots on the anal fin of males
DOI: 10.5061/dryad.18j1h.1/1.1
title: Reflectance spectra

description: Reflectance spectra of the second egg-spot and the area above the egg-spots on the anal fin of males
DOI: 10.5061/dryad.18j1h.1/2.1
title: Ambient light spectra

description: Downwelling irradiance for each locality (except Lf1) at the surface and at the following depths: 10, 20, 30, 40, 50, 70 and 100 cm, or to the deepest possible point within the interval.
DOI: 10.5061/dryad.18j1h.2/2.2
title: Ambient light spectra

description: Downwelling irradiance for each locality (except Lf1) at the surface and at the following depths: 10, 20, 30, 40, 50, 70 and 100 cm, or to the deepest possible point within the interval.
DOI: 10.5061/dryad.18j1h.2/3.2
title: Egg-spot measurements based on photographs
DOI: 10.5281/zenodo.221105
title: Geologi Endapan Gunungapi Wilayah Bandung Timur, Jawa Barat, Indonesia (V1)

description: Dokumen ini adalah tugas akhir dari mahasiswa Prodi S1 Teknik Geologi ITB Satrio Wiavianto yang telah diwisuda ada Bulan Oktober 2016 yang lalu. Pemetaan dilakukan di wilayah gunungapi di Bandung Timur dengan penekanan pada studi petrologinya dengan sedikit analisis hidrogeologi. Revisi minor telah dilakukan pada versi ini. Peta resolusi tinggi akan segera ditambahkan.
DOI: 10.5061/dryad.4b95c/1
title: species traits and sites

description: Dataset contains species with site characteristics and individual species traits.
DOI: 10.5061/dryad.4b95c/2
title: phylogeny

description: Phylogeny tre file.
DOI: 10.5061/dryad.d28j8/1
title: CHONe_EF-13_ChuJ_Data_LnO2016

description: Data are from lab-based respirometry experiments designed to measure metabolic rates (oxygen consumption) and critical oxygen tensions (O2crit or Pcrit) for slender sole, spot prawn, and squat lobster. Data was collected as part of a PhD thesis (J.W.F. Chu).
DOI: 10.14457/kmutt.the.2002.326
title: ส่วนของภาพที่สนใจสำหรับการทำลายน้ำดิจิตอลเพื่อให้ทนทานต่อการบีบอัด /
DOI: 10.14457/kmutt.the.2009.441
title: สีและค่าดัชนีกำลังอัดของเถ้าแกลบที่บำบัดด้วยสารละลายกรด /
DOI: 10.14457/kmutt.the.2002.327
title: สัมประสิทธิ์การถ่ายเทความร้อน ความดันลดและรูปแบบการไหลของการไหลสองสถานะน้ำ-อากาศผ่านอุปกรณ์แลกเปลี่ยนความร้อนแบบแผ่น /
DOI: 10.14457/kmutt.the.2003.376
title: การไหลสองสถานะน้ำ-อากาศ ภายในช่องทางการไหลที่มีลักษณะเป็นคลื่นไซน์ /
DOI: 10.14457/kmutt.the.2003.377
title: สัดส่วนของประชากรจุลชีพในระบบอีบีพีอาร์ที่สัดส่วนฟอสฟอรัสต่อซีโอดีต่างกัน /
DOI: 10.14457/kmutt.the.2005.431
title: การศึกษารูปแบบการจัดการความปลอดภัยด้านอาหาร : กรณีการใช้ข้อกำหนดวิธีที่ดีในการเกษตรด้านพืช /
DOI: 10.14457/kmutt.the.2008.361
title: สิทธิบัตร กับการคุ้มครองคอมพิวเตอร์ซอฟต์แวร์ : กรณีศึกษาประเทศไทย /
DOI: 10.14457/kmutt.the.2008.362
title: สาเหตุความล่าช้าในงานก่อสร้างทางหลวงของประเทศไทย /
DOI: 10.14457/kmutt.the.2008.363
title: สาเหตุของความขัดแย้งระหว่างวิศวกร กรณีศึกษา : ระหว่างวิศวกรผู้รับเหมาและวิศวกรที่ปรึกษา /
DOI: 10.14457/ubu.res.2012.16
title: การศึกษาคุณสมบัติทางโครงสร้างและแสงของควอนตัมดอทโคยใช้วิธีเคดอทพี (บทคัดย่อ)
DOI: 10.15468/xje3oi
title: New species of Macunahyphes Dias, Salles & Molineri (Ephemeroptera: Leptohyphidae), with taxonomic notes

description: This dataset contains the digitized treatments in Plazi based on the original journal article Paula Malaquias Souto, Frederico Falcão Salles (2016): New species of Macunahyphes Dias, Salles & Molineri (Ephemeroptera: Leptohyphidae), with taxonomic notes. European Journal of Taxonomy 254: 1-15, DOI: 10.5852/ejt.2016.254
DOI: 10.14457/psu.res.2012.17
title: ยุติธรรมเชิงสมานฉันท์: การจัดการความขัดแย้งเพื่อสร้างความยุติธรรม ของชุมชนควนโส
DOI: 10.14458/bu.res.2012.7
title: องค์ประกอบภาพยนตร์และปัจจัยสื่อสารการตลาดแบบผสมผสาน ที่ส่งผลต่อพฤติกรรมการชมภาพยนตร์ไทยประเภทรักโรแมนติก
DOI: 10.14457/kmitl.res.2012.121
title: การพัฒนาชุดฝึกการทรงตัว
DOI: 10.14457/kmitl.res.2013.133
title: ผลของการสกัดน้ำจากใบพุดจักรต่อการงอกของเมล็ดพืชทดสอบ
DOI: 10.14457/sdu.res.2013.42
title: การพัฒนามัฟฟินเนื้อตาลสุกผสมลูกตาล
DOI: 10.14457/kmitl.res.2013.135
title: การพัฒนาและประเมินผลบทเรียนคอมพิวเตอร์ช่วยสอนเรื่อง “พื้นฐานการถ่ายภาพ” ตามแนวคิดของโรเบิร์ต กาเย่ สำหรับนักเรียนชั้นประถม
DOI: 10.14457/kmutt.res.2013.14
title: การใช้สารสนเทศและแหล่งสารสนเทศของผู้ประกอบการฟาร์มสุกรในจังหวัดนครปฐม
DOI: 10.5061/dryad.pf550.1/1.1
title: YST_Core_N550_1013loc

description: SNP data file for STRUCTURE and DAPC analysis of "CORE" data set
DOI: 10.5061/dryad.pf550.1/2.1
title: YST_Full_N591_747loc

description: SNP data file for STRUCTURE and DAPC analysis of "FULL" data set
DOI: 10.5061/dryad.pf550.1/3.1
title: YST_Outgroups_N392_440loc

description: SNP data file for STRUCTURE and DAPC analysis of "OUTGROUPS" data set
DOI: 10.5061/dryad.pf550.1/4.1
title: YST_Core_N550_1013loc_BAPS

description: SNP data file for BAPS analysis of "CORE" data set
DOI: 10.5061/dryad.pf550.1/5.1
title: YST_Full_N591_747loc_BAPS

description: SNP data file for BAPS analysis of "FULL" data set
DOI: 10.5061/dryad.pf550.1/6.1
title: YST_Outgroups_N392_440loc_BAPS

description: SNP data file for BAPS analysis of "OUTGROUPS" data set
DOI: 10.5061/dryad.pf550.1/9.1
title: YST_Core_N550_1013loc_BayeScan

description: SNP data file for BayeScan analysis of "CORE" data set
DOI: 10.14457/ubu.res.2014.8
title: การจำแนกพันธุ์กระเทียมไทยด้วยระบบจมูกอิเล็กทรอนิกส์
DOI: 10.5061/dryad.pf550.1/10.1
title: YST_Full_N591_752loc_BayeScan

description: SNP data file for BayeScan analysis of "FULL" data set
DOI: 10.5061/dryad.pf550.1/11.1
title: YST_Outgroups_N392_441loc_BayeScan

description: SNP data file for BayeScan analysis of "OUTGROUPS" data set
DOI: 10.5061/dryad.pf550.1/12.1
title: YST_Core_N550_1013loc_HP-Rare

description: SNP data file for HP-Rare analysis of "CORE" dataset
DOI: 10.5061/dryad.pf550.1/13.1
title: YST_Core_N550_Arlequin

description: SNP data file for analysis of population genomic diversity and pairwise Fst in Arlequin
DOI: 10.5061/dryad.pf550.1/14.1
title: Stacks_commands_YST_3datasets

description: Commands used for denovo analyses of "FULL", "CORE", and "OUTGROUPS" datasets in STACKS 1.20.
DOI: 10.5061/dryad.pf550.1/15.1
title: YST_EUR-AM_943loc_ABC

description: SNP data file for DIYABC analysis of YST in both Eurasia and Americas
DOI: 10.5061/dryad.pf550.1/16.1
title: YST_EUR_1069loc_ABC

description: SNP data file for DIYABC analysis of YST in three regions of Eurasia (western Europe, eastern Europe, and Asia)
DOI: 10.5061/dryad.pf550.1/17.1
title: YST_EUR-AM_943loc_BayeScan

description: SNP data file for BayeScan analysis of data set used for DIYABC analysis of YST in both Eurasia and Americas
DOI: 10.5061/dryad.pf550.1/18.1
title: YST_EUR_1069loc_BayeScan

description: SNP data file for BayeScan analysis of data set for DIYABC analysis of YST in Eurasia
DOI: 10.5061/dryad.2kd0b/1
title: Presentations

description: Text spelling out one of four colours (red, green, yellow and blue) presented at pseudorandom intervals using Powerpoint 2010 (Microsoft Corp., Redmond, WA, USA). The duration of each stimulus was between 600 and 1400ms. To avoid potential entrainment of temporal gait parameters and to encourage constant attention, stimulus duration was adjusted so that no more than two sequential stimuli had a duration within 200ms of that of the previous stimulus, although mean stimulus frequency was maintained at 1Hz over the trial.
DOI: 10.5061/dryad.2kd0b/2
title: FINAL_DATA

description: Final data in xls. format. Please see readme for usage.
DOI: 10.5061/dryad.pf550.1/19.1
title: MEC_15-1264_Sample_Data

description: List of samples and sequencing run information
DOI: 10.14457/kmitl.the.2002.131
title: กระบวนการฝึกอบรมการพัฒนาทรัพยากรบุคคล ที่พึงประสงค์ในกลุ่มบริษัท ทีโอเอ /
DOI: 10.14457/kmitl.the.2002.132
title: พื้นที่เพื่อการนันทนาการของผู้อยู่อาศัย ภายในอาณาเขตของอาคารชุดพักอาศัยระดับราคาสูงในกรุงเทพฯ : การจัดให้มี-ความต้องการ-และการเข้าใช้ /
DOI: 10.14457/kmitl.the.2003.270
title: วงจรหาค่ารากที่สองของกำลังสองเฉลี่ยทำงานที่แหล่งจ่ายไฟแรงดันต่ำ โดยใช้ขาบอดี้ของมอส /
DOI: 10.5061/dryad.dt7mr/1
title: Dataset

description: Thermal data: normalized data by time
DOI: 10.5061/dryad.ft64m/1
title: MAPS-17yr.data

description: Capture-recapture data from all MAPS stations over a 17-yr period.
DOI: 10.5061/dryad.ft64m/2
title: MAPS-stations

description: Information on MAPS stations IDs.
DOI: 10.5061/dryad.ft64m/3
title: BBS-routes

description: Metadata of Breeding Bird Survey routes
DOI: 10.5061/dryad.ft64m/4
title: BBS-AOU.data

description: AOU IDs of North American bird species.
DOI: 10.14457/kmitl.the.2002.133
title: การประยุกต์ใช้วงจรทำปริพันธ์และอนุพันธ์ เพื่อการยกกำลังสัญญาณ และการดีเทกต์สัญญาณเอเอ็ม /
DOI: 10.14457/kmitl.the.2002.134
title: การคัดเลือกแบคทีเรียกรดแล็กติกที่สร้างไดอะซีติล /
DOI: 10.14457/kmitl.the.2002.135
title: การค้นคืนข้อมูลรูปภาพโดยใช้ออร์โตโครรีโลแกรม และโครรีโลแกรมความแตกต่างของค่าสี /
DOI: 10.14457/kmitl.the.2002.136
title: การศึกษากระบวนการแปรรูปเครื่องดื่มจากน้ำนมข้าวกล้อง น้ำนมถั่วเหลือง และรำข้าวบรรจุกระป๋อง /
DOI: 10.14457/kmitl.the.2002.137
title: ชุดเครื่องกลไฟฟ้าเพื่อใช้ทดแทนระบบนิวแมติก /
DOI: 10.14457/kmitl.the.2002.138
title: การใช้โครงข่ายประสาทแบบข้อมูลสามระดับควบคุมระบบ /
DOI: 10.14457/kmitl.the.2002.139
title: การตรวจหาโพรงหรือรอยร้าวในเหล็กโดยใช้รังสีแกมมา /
DOI: 10.14457/kmitl.the.2002.140
title: การออกแบบและสร้างตัวกำจัดสัญญาณเสียงสะท้อนโดยใช้ FPGA /
DOI: 10.18462/iir.thermag.2016.0106
title: Experimental evaluation of two-material active magnetic regenerators.

description: Four regenerator compositions comprised of two-layers are experimentally characterized in PM II with an interface temperature sensor. In all the regenerators the warm layer is packed with Gd, while the cold layer consists of different Gd1-xYx alloys. The performance is analyzed assuming a linear temperature profile between the hot, interface and cold side temperature measurements. The linear temperature distribution is used to evaluate the adiabatic temperature change, specific heat and entropy change distributions in each multilayered regenerator. The regenerator with the largest refrigerant capacity (RC’) is found to develop the largest temperature span at each operating condition.
DOI: 10.5061/dryad.ft64m/5
title: BBS-state.ids

description: Information on the IDs of BBS states
DOI: 10.5061/dryad.ft64m/6
title: BBS-bcr.state-area

description: The area of states in different BCR regions.
DOI: 10.14457/kmitl.the.2002.141
title: การศึกษารูปแบบช่องเปิดและขนาดที่เหมาะสม จากการใช้แสงธรรมชาติ โดยไม่เพิ่มภาระความร้อน สำหรับห้องเรียนคอมพิวเตอร์ทั่วไป /
DOI: 10.14457/kmitl.the.2002.142
title: การวิเคราะห์เตาหุงต้มเหนี่ยวนำความถี่สูงชนิดควบคุมกำลังไฟฟ้าด้วยความถี่ /
DOI: 10.14457/kmitl.the.2002.143
title: การศึกษาวิธีการอบแห้งดอกกล้วยไม้สกุลหวายลูกผสมแอนนา (Dendrobium Anna) ด้วยเตาอบไมโครเวฟ /
DOI: 10.14457/kmitl.the.2003.271
title: การสร้างตัวควบคุมแบบฟัซซีพีสแควร์ไอดี /
DOI: 10.18462/iir.thermag.2016.0105
title: Investigation of an active magnetic regenerator subject to different fluid flow waveforms.

description: A flow control device based on cam actuated valves is designed and implemented on the PM II AMR test apparatus. The objective is to overcome the brief low field period of the nested concentric Halbach array by decreasing the fluid blow width; displacing fluid only when the magnetic field is close to the minimum and maximum values. Flow waveforms are simulated to evaluate varying blow durations with the same displaced volume. AMR experiments are performed which demonstrate an 11.7% increase in exergetic cooling power with a blow fraction of 59%.
DOI: 10.13126/unical.it/dottorati/538
title: Chemical and morphological influence on nanostructures: synthesis and characterization of Carbon-based materials

description: Dottorato di Ricerca in Fisica, Ciclo XX, a.a. 2007-2008
DOI: 10.18462/iir.thermag.2016.0102
title: Influence of void volume and inlet flow maldistribution on the performance of thermal regenerators.

description: Void (dead) volumes represent a penalty to the thermal performance of Active Magnetic Regenerators (AMR). While much effort has been put in designing AMRs with small void volumes, in most designs, penalties associated with inlet flow maldistribution and pressure loss actually increase with the reduction of the void volumes. In this work, an experimental evaluation of the combined effect of void volume and inlet flow maldistribution is carried out. The analysis is performed based on the regenerator thermal effectiveness determined experimentally in a passive regenerator test apparatus. The results show that the inlet flow maldistribution has a more significant negative impact on the regenerator effectiveness than the void volume.
DOI: 10.18462/iir.thermag.2016.0104
title: Modeling and simulation of a thermomagnetic reciprocating engine by gravity.

description: Worldwide concern over global warming and the search for less harmful energy sources to the environment has driven the scientific community to develop means of sustainability. In this sense, we have developed a gravitational thermomagnetic engine, based on Tesla’s engine operating principle. A magnetic plate containing MnAs was used as working piece. An electric resistor was used as energy source to heat the plate. We present in this paper our mathematical model and calculations, which simulate the engine’s dynamics. Using an interactive software, we studied the heat transfer process on the plate using a one-dimensional finite element model associated with the thermomagnetic properties of the material. Some performance parameters were obtained and the engine applications are also discussed.
DOI: 10.18462/iir.thermag.2016.0099
title: Location dependent performance study on regenerators within a Halbach magnetic field source.

description: This research describes the characterization of a concentric Halbach magnetic refrigerator using Gadolinium. Experiments are performed with the active regenerator located at three different axial locations in the magnet. Results show that the performance of the regenerator is lower when located near the ends of the Halbach magnets as compared to the center. Numerical simulations are performed using COMSOL to analyze the effects of field distribution, magnitude and demagnetization, in addition to the dead volumes on either side of the regenerator. The numerical results show a large difference between the temperature span of the active part of the regenerator and the end points of the regenerator housing where measurements are taken. These results suggest that proper characterization of the magnetic field and the dead volume is needed to explain the operation of the device.