cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18462/iir.thermag.2016.0100
title: Effect of PET insulator layers on the conduction losses of plate active magnetic regenerators.

description: The following paper proposes a feasible solution to an idea presented by Nielsen and Engelbrecht [1]. They explain that higher performances are linked with lower longitudinal thermal conductivity of the magneto-caloric material (MCM) in magnetic regenerators. The concept presented here; involves the insertion of insulator layers along the length of the magnetic regenerator. This idea is investigated by means of a 1D numerical model. It solves not only the energy equations of fluid and solid domains, but also the magnetic circuit that conforms the experimental set-up of reference. In conclusion, to intercalate insulator layers within the MCM increments the adiabatic temperature change, and thus the maximum cooling power of the machine.
DOI: 10.14457/rmutp.res.2012.39
title: องค์ประกอบที่มีส่งผลต่อความสามารถในการเรียนวิชาคอมพิวเตอร์กราฟิกส์
DOI: 10.14457/rmutp.res.2013.24
title: แนวทางการพัฒนาวินัยนักศึกษาตามความคิดเห็นของบุคลากรสายวิชาการ  มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
DOI: 10.14457/ku.res.2013.29
title: การวิเคราะห์แต่ละส่วนของเอนไซม์ Topoisomerase II alpha และ beta จากมนุษย์ต่อการจับกันกับสารกลุ่ม Rhinacathins และ Napthoquinone esters
DOI: 10.14457/rmutp.res.2013.26
title: การวิจัยปัญหาในงานหล่อและการพัฒนาแนวทางแก้ไขปัญหาในงานหล่อเครื่องประดับสมัยใหม่
DOI: 10.14457/rmutp.res.2013.27
title: การทำวิศวกรรมโปรตีนของเอนไซม์บีเทนอัลดีไฮด์ดีไฮโดรจีเนสจากข้าว Oryza sativa เพื่อความจำเพาะต่อสับเสรต
DOI: 10.13126/unical.it/dottorati/363
title: Complex Phenomena in Astrophysical Plasmas

description: Dottorato di Ricerca in Fisica, XXI Ciclo a.a. 2005-2008
DOI: 10.18462/iir.thermag.2016.0088
title: The operating principle of a fully solid state active magnetic regenerator.

description: As an alternative refrigeration technology, magnetocaloric refrigeration has the potential to be safer, quieter, more efficient, and more environmentally friendly than the conventional vapor compression refrigeration technology. Most of the reported active magnetic regenerator (AMR) systems that operate based on the magnetocaloric effect use heat transfer fluid to exchange heat, which results in complicated mechanical subsystems and components such as rotating valves and hydraulic pumps. This paper presents an operating principle of a fully solid state AMR, in which an alternative mechanism for heat transfer between the AMR and the heat source/sink is proposed. The operating principle of the fully solid state AMR is based on moving rods/sheets (e.g. copper, brass, iron or aluminum), which are employed to replace the heat transfer fluid. Such fully solid state AMR would provide a significantly higher heat transfer rate than a conventional AMR because the conductivity of moving solid rods/plates is high and it enables the increase in the machine operating frequency hence the cooling capacity. The details of operating principle are presented and discussed here. One of the key enabling features for this technology is the contact between the moving rods/sheets and magnetocaloric material, and heat exchange mechanism at the heat source/sink. This paper provides an overview of the design for a fully solid state magnetocaloric refrigeration system along with guidelines for their optimal design.
DOI: 10.18462/iir.thermag.2016.0090
title: Design and research of the room temperature magnetic wine cabinet.

description: A novel permanent magnet composite magnetic refrigerator on room temperature which used the double sets of two concentric quadropole Halbach array magnet was designed. The refrigerant used Gd and GdEr alloy particles and was divided into four parts according to the curie temperature then filled into the regenerator with the quality of 1.5 kg. The magnetic refrigerator was applied on the wine cabinet with the cold room capacity of 92 l and the max cooling power was 147 W. The cooling capacity of the wine cabinet was measured. The results showed that the max temperature span could exceed 25 K and the lowest temperature at the cold end was lower than 267 K. The experiment results showed that the wine cabinet had met the requirement of cold storage and could be practical used preliminary.
DOI: 10.18462/iir.thermag.2016.0096
title: Experimental evaluation of a single layer MnFeP1-xSi x AMR.

description: First order magnetocaloric materials (FOM) have desirable characteristic such as a high magnetocaloric effect, large heat capacity and use inexpensive constituents. However, irreversibilities associated with thermal and magnetic hysteresis, the strong dependency of the specific heat with temperature and magnetic field, and the narrow temperature range of useful magnetocaloric effect require further investigation. Among the the MnFeP1-xSix system is one of the promising materials for magnetic heat pumps
applications near room temperature. The present paper describes the experimental investigation of a single-layer MnFeP1-xSix active magnetic regenerator (AMR), under different test conditions and following a protocol of heating and cooling processes. The results for the FOM are compared with a Gd AMR, that is experimentally tested following the same protocol, with the objective to study the irreversibilities associated with FOM.
DOI: 10.18462/iir.thermag.2016.0098
title: Transient simulation of the active magnetic regenerator process.

description: A simplified modeling scheme is proposed to model hours of operation of AMR prototype systems. The modeling scheme could allow for quick assessments of AMR sizing based on system response time requirements. Hours of experimental operation were computed &lt;1min on a laptop. The scheme is based on the use of a lumped mass model. The model includes the heat load, heat leaks and AMR cooling power. We have found that the model works well within room temperature rejection temperatures under loading conditions of 10W. However, under no load conditions the model over predicts the temperature span of the system. This could be due to improper characterization of the heat leaks with the system. The accuracy of the model shows potential for future development as region of validity is close to the region of interest for commercial applications.
DOI: 10.18462/iir.thermag.2016.0084
title: Study of the performance coefficient of an active magnetic regenerative refrigeration system.

description: This work seeks to study the coefficient of performance (COP) of an active magnetic regenerative refrigeration system. The refrigeration system is consisted of a fluid circulating between a cold and a hot source, active regenerator is formed by parallel plates of gadolinium, a circulation pump, a rotating magnet and two heat exchangers to transfer heat between the fluid and the two sources. Thermodynamic, fluidic and magnetic models were carried out. The supplied works within the system were determined to calculate the COP such as the work of the circulating pump (Wp), the work of engine turning the magnet (We) and the magnetic work (Wm). Contrary to Wp and We calculations, Wm calculation is not classic. To study the COP, different exchanged heats within a cycle were calculated: the heat (Qc) recovered from the cold source, the heat (Qh) rejected to the hot source and the heat regenerated by the gadolinium (Qr). In this study, Qc was given by hypothesis, and Qh is determined by the first thermodynamic principle. While Qr was numerically determined after an optimization of system operating parameters. A resolution of the continuity equation, the amount of movement equation and the heat equation were carried out in order to study the temperature profile in the regenerator and the fluid. Then, we deduce the temperatures at the inlet and the outlet of the heat exchangers which help us to do the thermal balance. In this studied, the COP values of the magnetic refrigeration system are considered as significant.
DOI: 10.18462/iir.thermag.2016.0086
title: Study of heat transfers in a magnetocaloric regenerator with oscillating heat flow.

description: This paper propounds a modeling approach of the heat transfer in a magnetocaloric regenerator and the experimental method to evaluate correlations of the heat transfer coefficient between the magnetocaloric material and the coolant with an oscillating flow. This model includes a specific resolution for the fluid flow equations which takes into account a specific case of oscillating flows, the annular effect. These correlations can be used in the numerical model of a magnetocaloric heat pump to estimate the efficiency of this pump. This study involves the demonstrator development which allows to improve the numerical model.
DOI: 10.5281/zenodo.222836
title: Quantitative Proteomics Reveals Populus Cathayana Males Are More Responsive To Solar Uv-B Radiation Than Females

description: This data set  provides the detailed  information of total identified proteins in P. cathayana males and females under UV-B radiation in our experiment. To investigate the changes in the protein profiles in response to solar UV-B radiation, proteins were extracted from the poplar leaves and analyzed using an iTRAQ-based shotgun proteomics strategy. Using the Mascot search engine, a total of 6091 peptides from the trypsin-digested proteins were identified; of these, 5210 peptides were unique. A total of 2405 proteins were identified.
DOI: 10.18462/iir.thermag.2016.0078
title: Effects of magnetocaloric wire on increase in magnetic refrigeration cycle.

description: The phase-out of chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) refrigerants has recently been underway with greater awareness of the environment. Given this background, magnetocaloric refrigeration technology is considered a candidate among new refrigeration technologies that comply with regulations regarding the substances. Magnetic refrigeration systems are more efficient in theory than vapor compression type refrigeration systems and are free of CFC and HCFC refrigerants. The purpose of this study was to increase the cooling power of magnetocaloric refrigerators by increasing the cycle frequency and put them to practical use. Although other researchers reported that their experiments were conducted at a frequency of several Hz, we assume that a frequency greater than 10 Hz is required to gain a power output of several kW. However, when the cycle frequency is set to a higher value, the pressure losses in the flow paths increase, resulting in insufficient cooling power to transfer heat efficiently. Consequently, we have developed a wire-shaped magnetocaloric material (MCM) using gadolinium (Gd). The configuration of wires has been considered suitable to reduce pressure losses and secure a large contact area in an active magnetic regenerator (AMR). However, working the MCM has been considered difficult. The performance of the wire-shaped MCM was measured using an experimental device. The result showed a specific cooling power of 300 W/kg at 10.0 Hz. This result was four times larger than that of Gd particles.
DOI: 10.18462/iir.thermag.2016.0076
title: Performance analysis of an active magnetic refrigeration system with external loss mechanisms.

description: In this study, a one dimensional, time dependent model is used to study the performance of a magnetic refrigeration system. The objective is to quantify system losses and identify the operating conditions that maximize the performance. Parameters related to configuration such as external heat leaks and demagnetization effects are included. A simple resistance network model is used to simulate external losses. Through experiments, loss coefficient factors are estimated to determine conductance linking the cold side of the system to the environment and to the hot side. It is found experimental results on AMRs may underestimate intrinsic regenerator performance if losses are not considered. A detailed numerical study is performed to investigate the impacts of operating temperature on the performance of the system. Results indicate that the system efficiency is maximized when the average temperature of the matrix is slightly higher than the Curie point of the refrigerant.
DOI: 10.18462/iir.thermag.2016.0077
title: A material screening technique for optimum performance of an AMR.

description: The selection of an optimum magnetocaloric material is a challenge in the development of magnetic refrigeration systems. In this study, two MnFeP1-xAsx alloys with the same transition temperature, but different specific heat and adiabatic temperature change are investigated. The two alloys are used to create active regenerators and subsequently tested, experimentally and numerically, over a wide range of operating parameters. The results show that the material with smaller peak and wider magnetic entropy change curve, outperforms the material with larger peak but narrower magnetic entropy change curve. To further investigate impacts of material properties on performance, a range of material metrics are compared against simulated performance. A strong linear correlation is observed between the maximum RCP and the maximum exergetic cooling power of 12 materials tested in this study.
DOI: 10.18462/iir.thermag.2016.0074
title: Scale up of MnFePSi materials in a broad temperature range and manufacturing of advanced heat exchanger structures.

description: We have developed a straightforward synthesis route of MnFePSi spheres via gas atomization yielding material stocks ranging from Curie temperatures of 250 to 330K. These base materials can be incorporated into highly stable heat exchanger beds of packed spheres allowing the consequent optimization of system parameters as porosity, pressure drop, etc. in active regenerator tests.We will show initial results on advanced heat exchanger structures displaying lower pressure drop and thereby giving room for higher efficiency devices.
DOI: 10.18462/iir.thermag.2016.0075
title: Properties of La(Fe, Si)13 Magnetocaloric compounds prepared by reactive spark plasma sintering.

description: La(Fe, Si)13 magnetocaloric compounds have been synthesized by high energy ball milling (BM) and sintered by Spark Plasma Sintering (SPS), starting either from an already annealed sample or from a non-annealed sample (reactive sintering). It is possible to form the NaZn13 phase directly by reactive sintering at only 1273K. The influence of the annealing temperature has been investigated in details as well as other parameters. The properties of sintered compounds have been compared with those of samples which were only prepared by BM and annealed.
DOI: 10.18462/iir.thermag.2016.0072
title: Performance comparison of La0.8Ce 0.2Fe11.47Mn0.23Si1.3H1.8 magnetic refrigerant prepared by two methods.

description: In this paper La0.8Ce0.2Fe11.47Mn0.23Si1.3H1.8 magnetic refrigerant were prepared by hot pressed method and podwer bonded method respectively, the performance of the samples prepared by two methods were studied. The structure, morphology and magnetic property were researched. The experiment resutls showed that the max magnetic entropy for the boned sample is 11.8J/KgK which is larger than that of hot pressing sample with the max magnetic property of 10.99 J/kgK at the magnetic field of 1.5T. The bending strength and the thermal conductivity of hot pressing sample are both better than the boned sample.
DOI: 10.18462/iir.thermag.2016.0061
title: Thermal single-ionic magnetic properties of materials calculated with atomic matters MFA computation system.

description: We present the concept and scientific methods of a new computation system called ATOMIC MATTERS MFA. This computation system is useful for magnetocaloric effect (MCE) estimations for defined materials. ATOMIC MATTERS MFA provides magnetic, calorimetric and spectroscopic properties of atomic-like localized electron systems under the influence of Crystal Electric Field (CEF), spin-orbit coupling, and magnetic interactions, taken as both Mean Field Approximation (MFA) and the influence of external magnetic fields. ATOMIC MATTERS MFA provides macroscopic properties of materials in different temperature regions, especially around phase transition temperature, such as: magnetic moment (spin and orbit components), localized electron specific heat, localized electron entropy (with a useful tool set for MCE estimations ), evolution of energy level positions, and total free energy temperature dependences in a definable temperature region. ATOMIC MATTERS MFA computation system is an extension of the ATOMIC MATTERS application, a system for describing fine electronic structure and predicting basic magnetic and spectral properties of materials.
DOI: 10.18462/iir.thermag.2016.0070
title: Magnetocaloric bench: analytical model for gadolinium characteristics.

description: Active magnetic refrigeration cycle analysis for different waveforms both magnetic field and heat transfer fluid velocity is an essential issue to design and implement heating and cooling applications based on magneto-caloric effect. Modelling the multiphysics phenomena that occur inside the magnetocaloric regenerators requires the coupling of magnetostatic, magnetocaloric and thermofluidic models. The global interest of the contribution presented here is to decrease the resolution time of the magnetostatic model. Indeed, the multi-physics model integrating this fast magnetostatic model needs much less computation time and ensures its compatibility with an optimization process. In this context, an analytical modelling of magnetostatic phenomena is developed by taking into account the nonlinear behaviour of the ferromagnetic external circuit as well as the active magnetocaloric material (MCM). The analytical model calculates the values of the magnetic field and the magnetic flux density at each point of the regenerator volume. Moreover, the model considers the dependency of magnetic model B(Hint) with the temperature in the case of the magnetocaloric material characteristics obtained experimentally.
DOI: 10.6073/pasta/24a3a1faa931cd98944a21d0db67d398
title: Species list for Bonanza Creek Experimental Forest
DOI: 10.6073/pasta/278c0b37ea34003256a87e9a27fcb570
title: Caribou-Poker Creeks Research Watershed: Hourly Precipitation data from weighing buckets, 1992 to 1995
DOI: 10.6073/pasta/435f12d5c06aadaf541c47aecccd100a
title: Bonanza Creek Experimental Forest Defoliating Insect Population Levels Per Leaf 1975-2012 - Werner
DOI: 10.6073/pasta/5c6add91e33c67e03984e9bb493e6403
title: White Spruce NPP: Tree density and basal area by diameter sizeclass in upland and floodplain mid- and late-successional stands: 1989-2008
DOI: 10.6073/pasta/aad387665816c3c374cb3f33798fee99
title: Bonanza Creek Experimental Forest Precipitation (Water Buckets/Rain Gauges) at BCEF LTER sites: Weekly
DOI: 10.6073/pasta/c174404b0bb5d9a65bc8eccb40db825c
title: Bonanza Creek Experimental Forest Beetles Per Trap 1975-2012 - Werner
DOI: 10.6073/pasta/f48e1636125d2dced0d4793ff3ab86c0
title: Bonanza Creek Experimental Forest: Weekly TDR measurments at core upland and floodplain sites.
DOI: 10.18462/iir.thermag.2016.0059
title: A test stand to measure the magnetization work of magnetocaloric materials.

description: The experimental apparatus presented in this study is capable of precisely measuring the magnetic force produced by a permanent magnets assembly over a magnetocaloric material at a regulated temperature. This data is then used to calculate the magnetization work necessary to bring the given magnetocaloric sample from zero field up to a 1 T field region over a given magnetic field gradient, for a range of temperatures around the Curie temperature of the material. This magnetization work can be used to compare different magnetocaloric materials, as well as to validate analytic methods to estimate the magnetization work of real applications in magnetic refrigeration, and thermomagnetic motors. Construction details of the test stand are presented as well as results for Gadolinium (Gd) and Manganese Arsenide (MnAs).
DOI: 10.5061/dryad.g0p8b/1
title: Toxicants collected from Qinling pandas

description: Dry deposition, atmospheric deposition, and soil concentrations of dust, heavy metals, and persistent organic pollutants (POP), respectively, collected at the Foping National Nature Reserve (FNNR), Shaanxi Wild Animal Research Center (SWARC),and Xi'an City. Data file includes 279 rows (including one header row of variable names) and six columns: Start date of data collection (DateStart as YYYYMMDD); end date of data collection (DateEnd as YYYYMMDD); Location (Loctaion as one of FNNR, SWARC or Xi'an_CIty); Variable measured (Variable as one of Dry_deposition, AtmDep_, Soil_, or AtmDep_; Value (real number); and Units (one of g_m2_yr, mg_m2_yr, ug_g, or ng_m2_yr).
DOI: 10.5281/zenodo.223330
title: X-Ray Diffraction Images For Yeast 5-Aminolevulinic Acid Dehydratase Complexed With 4-Keto-5-Aminohexanoic Acid.

description: X-ray diffraction images which were collected at the EMBL beamline BW7B, DESY (Hamburg) on 28th June 1999 using a Marresearch 345 image plate detector. The data were collected in three passes, images in the first main one having file prefix hykah, the second being a low-resolution run (lr) and, the last, a very high resolution (vhr) pass. More details are given in the notebook pages.
description: {"references": ["'The X-ray structure of yeast 5-aminolaevulinic acid dehydratase complexed with substrate and three inhibitors.' P. T. Erskine, R. Newbold, A. A. Brindley, S. P. Wood, P. M. Shoolingin-Jordan, M. J. Warren and J. B. Cooper (2001). J. Molec. Biol. 312, 133-141."]}
DOI: 10.6073/pasta/0f615dff47a894abd42584e9dee68891
title: White Spruce NPP: average NPP per tree by diameter sizeclass for 4 time periods between 1993 and 2008
DOI: 10.6073/pasta/2157fe3ecff8bccfb3b429c3e2eebea2
title: White Spruce NPP per tree calculated from dendrometer bands annually from 1994 to 2008
DOI: 10.6073/pasta/aba938ed7d56d9ef5a6f185d8acd3314
title: White spruce tree diameter vs age in mid-successional and late-successional long-term Bonanza Creek LTER inventory plots
DOI: 10.6073/pasta/d31da521cc2b6e91b7d5d2c7da18eb2b
title: White Spruce NPP: average NPP per tree by age cohort for 4 time periods between 1993 and 2008
DOI: 10.6073/pasta/d6c90d8eda98664e8c62cefcce92da8b
title: White Spruce NPP per tree and per ha averaged across a 15 year period (1993 to 2008)
DOI: 10.18462/iir.thermag.2016.0057
title: Multiobjective optimization of a reciprocating magnetic refrigerator using a genetic algorithm.

description: This paper is intended to analyze the overall energetic and exergetic performance of an active magnetic regenerative refrigerator (AMRR). A 1.5-D numerical model has been developed to simulate a system composed of a parallel-plate regenerator, a magnetic source, a pump, heat exchangers, and control valves. The behaviour in steady state is described and the basic thermodynamic equations are depicted. The effects of several parameters like the magnetic field, the geometry, the mass, and the blowing time are studied. Various types of liquid refrigerants are also tested thanks to CoolProp library. The main goals are to maximize the COP, the exergetic efficiency, and the cooling power while respecting a precise set of constraints. A multiobjective optimization based on a genetic algorithm (GA) is used to enhance the performance regarding the Pareto efficiency. Finally, the tuning of the algorithm is discussed in order to achieve optimal results in fair computational time.
DOI: 10.6073/pasta/09885eeb92a8c979bc07368bd003317e
title: Aspen NPP: Tree density and basal area by diameter sizeclass in upland mid- and late-successional stands: 1989-2008
DOI: 10.6073/pasta/58c508bfc3a8307b000e209e1475c26c
title: Aspen NPP: average NPP per tree by diameter sizeclass for 4 time periods between 1993 and 2008
DOI: 10.6073/pasta/c956b8cac422dd54c67643ba49ecc68c
title: Aspen NPP per tree calculated from dendrometer bands annually from 1994 to 2008