cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
VP3-16: Novel and ultra-sharp magnetization in Sm (Ni0.5Fe0.4Al0.1)5
Creators: Wenyun Yang
Tao Zhu
Zhaochu Luo
Shunquan Liu
Jingzhi Han
Honglin Du
Qing Xu
Changsheng Wang
Jinbo Yang
Publisher: name: IEEE
Year: 2023

Hard Magnetic Materials (Virtual)
Many magnetic characteristics, such as spin reorientation, magnetic ordering and phase transition, magnetization compensation, remanence and coercivity, are closely dependent on the temperature of the magnetic materials [1-4]. Recently, temperature-dependent magnetization jump behaviors have been observed in several rare-earth transition-metal intermetallic compounds at very low temperatures, such as Dy(Fe,M)2(M=Al,Si)[5], Dy(Fe,Ga)2[6], CeNi1-xCux[7], SmCo3.5Cu1.5[8]. In this study, multi-element rare-earth transition-metal intermetallic compounds Sm(Ni0.5Fe0.4Al0.1)5 has been successfully fabricated, and novel and ultra-sharp magnetization behaviors have been investigated. When T>4.1 K, the magnetization curve is smooth and the coercivity increases exponentially with decreasing temperature due to the decrease of the thermal activation, however, when T<4.1 K sharp magnetization steps appear and the coercivity decreases with further decreasing the temperature and tends to be constant when T<2.5 K. The hysteresis loops of a polycrystalline grain of about 1 mm are shown in Fig. 1. The hysteresis loop at 10 K is smooth, whereas at 2.2 K four ultra-sharp magnetization steps appear on the magnetization and demagnetization curves, respectively. The ultra-sharp magnetization steps can be explained using the mechanism of avalanche magnetization process launched by an instantaneous domain wall motion. The sample temperature of the polycrystalline grain has also been measured with increasing magnetic field at constant measurement temperature of 5 K and 2 K, as shown in Fig. 2. No temperature pulse is observed for the condition of 5 K, while for the condition of 2 K four temperature pulses are observed due to the ultra-sharp magnetization jumps, supporting the theory of avalanche magnetization mechanism.References: [1] R. Grössinger, P. Obitsch and X.K. Sun et al., Mater. Lett., 2, 539 (1984). [2] T. Urakabe, T. Yamashita and T. Saito et al., J. Magn. Magn. Mater., 177, 1145 (1998). [3] C. Mazumdar, R. Nagarajan and L. C. Gupta et al., Appl. Phys. Lett., 77, 895 (2000). [4] S. Foner, E. J. McNiff and H. Oesterreicher et al., J. Appl. Phys., 49, 2061 (1978). [5] N. V. Mushnikov, N. K. Zajkov and A. V. Korolyov, J. Magn. Magn. Mater., 163, 322 (1996). [6] W. D. Zhong, Z. X. Liu and H. Y. Chen et al., Acta. Phys. Sin. Ch. Ed., 44, 1516 (1995). [7] N. Marcano, J. C. Gómez Sal and J. I. Espeso et al., Phys. Rev. Lett., 98, 166406 (2007). [8] M. Uehara, B. Barbara and B. Dieny et al., Phys. Lett., 114A, 23 (1986).
Automatikschaltung für ein TeilIastschaltgetriebe
Creators: name: Kempf, Tilo
Publisher: name: LANDTECHNIK
Year: 1999

description: Um den Fahrer durch eine verbesserte Ergonomie und eine Reduktion der manuellen Schaltvorgänge zu entlasten, wurde für die John-Deere-Traktoren der 6000er-Serie eine elektronisch geregelte Schaltung für ein 4-Gang-Lastschaltgetriebe entwickelt. Hierfür wurde ein neuer Schalthebel entworfen, der das Schalten von Gruppen und Lastschaltgängen kombiniert. Zusätzlich wurden zwei Automatikmodi implementiert. Einer ist das sogenannte Speed Matching, welches während des Gruppenwechsels die Lastschaltstufe anpasst. Der andere Automatikmodus ist eine Grenzlastregelung, die maximale Leistungsabgabe auf Feld und Straße erlaubt.
description: LANDTECHNIK, Bd. 54 Nr. 2 (1999)
Recovering 21-cm signal from simulated FAST intensity maps
Creators: name: Yohana, Elimboto
name: Ma, Yin-Zhe
name: Li, Di
name: Chen, Xuelei
name: Dai, Wei-Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The 21-cm intensity mapping (IM) of neutral hydrogen (HI) is a promising tool to probe the large-scale structures. Sky maps of 21-cm intensities can be highly contaminated by different foregrounds, such as Galactic synchrotron radiation, free-free emission, extragalactic point sources, and atmospheric noise. We here present a model of foreground components and a method of removal, especially to quantify the potential of Five-hundred-meter Aperture Spherical radio Telescope (FAST) for measuring HI IM. We consider 1-year observational time with the survey area of $20,000\,{\rm deg}^{2}$ to capture significant variations of the foregrounds across both the sky position and angular scales relative to the HI signal. We first simulate the observational sky and then employ the Principal Component Analysis (PCA) foreground separation technique. We show that by including different foregrounds, thermal and $1/f$ noises, the value of the standard deviation between reconstructed 21-cm IM map and the input pure 21-cm signal is $ΔT = 0.034\,{\rm mK}$, which is well under control. The eigenmode-based analysis shows that the underlying HI eigenmode is just less than $1$ per cent level of the total sky components. By subtracting the PCA cleaned foreground+noise map from the total map, we show that PCA method can recover HI power spectra for FAST with high accuracy.
description: 14 pages, 11 figures, MNRAS in press
Quantum mechanical approach to decoherence and relaxation generated by fluctuating environment
Creators: name: Gurvitz, S. A.
name: Mozyrsky, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider an electrostatic qubit, interacting with a fluctuating charge of single electron transistor (SET) in the framework of exactly solvable model. The SET plays a role of the fluctuating environment affecting the qubit's parameters in a controllable way. We derive the rate equations describing dynamics of the entire system for both weak and strong qubit-SET coupling. Solving these equation we obtain decoherence and relaxation rates of the qubit, as well as the spectral density of the fluctuating qubit's parameters. We found that in the weak coupling regime the decoherence and relaxation rates are directly related to the spectral density taken at Rabi or at zero frequency, depending on what a particular qubit's parameters is fluctuating. This relation holds also in the presence of weak back-action of the qubit on the fluctuating environment. In the case of strong back-action, such simple relationship no longer holds, even if the qubit-SET coupling is small. It does not hold either in the strong-coupling regime, even in the absence of the back-action. In addition, we found that our model predicts localization of the qubit in the strong-coupling regime, resembling that of the spin-boson model.
description: 15 pages, typo errors corrected, version appeared in PRB
Optimaler Ersatzzeitpunkt von Traktionsreifen
Creators: name: Schlee, Rolf
name: Krebs, Camille
Publisher: name: LANDTECHNIK
Year: 1999

description: In Zeiten sinkender Margen wird es immer wichtiger, die Wirtschaftlichkeit von Abläufen zu untersuchen und die jeweiligen betrieblichen Erfordernisse kostenseifig zu optimieren. Das gilt auch für die Landwirtschaft. Am Beispiel einer Traktorbereifung wird gezeigt, wie durch die Ermittlung des richtigen Einsatzzeitpunktes die Betriebskosten in vernünftigen Grenzen gehalten werden können. Dabei müssen die über die Betriebsdauer sinkenden Abschreibungen den schlupfbedingt wachsenden Betriebskosten gegenübergestellt werden.
description: LANDTECHNIK, Bd. 54 Nr. 2 (1999)
Subdiffusion equation with Caputo fractional derivative with respect to another function
Creators: name: Kosztołowicz, Tadeusz
name: Dutkiewicz, Aldona
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show an application of a subdiffusion equation with Caputo fractional time derivative with respect to another function $g$ to describe subdiffusion in a medium having a structure evolving over time. In this case a continuous transition from subdiffusion to other type of diffusion may occur. The process can be interpreted as "ordinary" subdiffusion with fixed subdiffusion parameter (subdiffusion exponent) $α$ in which time scale is changed by the function $g$. As example, we consider the transition from "ordinary" subdiffusion to ultraslow diffusion. The function $g$ generates the additional aging process superimposed on the "standard" aging generated by "ordinary" subdiffusion. The aging process is analyzed using coefficient of relative aging of $g$--subdiffusion with respect to "ordinary" subdiffusion. The method of solving the $g$-subdiffusion equation is also presented.
description: 9 pages, 7 figures
Additional file 1 of Psychological predictors of intention and avoidance of attending organized mammography screening in Norway: applying the Extended Parallel Process Model
Creators: name: Ivanova, Anna
name: Kvalem, Ingela Lundin
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Additional file 1: Appendix 1. Full questionnaire used in the data collection.
Automated Gleason Grading Challenge 2022
Creators: name: Weimiao YU
name: Ong Kok Haur
name: Xinmi HUO
name: Haoda Lu
Publisher: name: Zenodo
Year: 2022
Subjects: Prostate Cancer
Digital Pathology
Deep Learning
MICCAI
Challenge

description: Prostate cancer is characterized by an abnormal growth of cells in the prostate glands. It is also the second most common cancer among men worldwide which kills 1 in 40 men annually. The progression of it is determined according to the Gleason grading system, which also serves as a guide to decide the appropriate treatment a patient should receive.
 In diagnosis, tissue samples are first obtained during prostate biopsies and examined via visual inspection by pathologists. Unfortunately, manual examination can be prone to inter-observer variability even between expert pathologists. This may result in missing a cancer diagnosis or unnecessary treatment due to over-grading. Furthermore, such methods are also time consuming as differentiation between malignant and benign biopsy samples are often in extensive amounts. Therefore, this competition aims to utilize the potential of automated deep learning systems in the diagnosis of prostate cancer, with the ultimate goal of improving prognosis and quality of life of patients. Research studies have shown support for such artificial intelligence methods in achieving pathologist-level performance, as well as improvements in speed, accuracy, and consistency of the results. This competition will also seek to define an assessment standard for machine learning-based algorithms for reported results, as well as choosing the most effective solution for future clinical trials. In this challenge, we publish a H&E-stained whole slide image dataset of prostatectomy and biopsy specimens with pixel-level annotations performed by experienced pathologists and Gleason Score. Additionally, we also provide a set of images scanned by multiple scanners to assess the algorithm performance of handling variations caused by image digitalization. The submitted algorithm should be accurate to detect different Gleason Patterns and also generalized to process images scanned by different scanners. To the best of our knowledge, this is the first challenge in the field of digital pathology that investigate the variations caused by image scanning.
Beregnungsmaschinen und Düsenwagen im Kostenvergleich
Creators: name: Soureil, Heinz
name: Scheibe, Daniel
Publisher: name: LANDTECHNIK
Year: 1999

description: Schon bei der Planung einer Beregnungsanlage ist an spätere Folgekosten zu denken, denn durch die Beregnung verändern sich nicht nur Liquidität und Einkommen, sondern auch die Organisation des Betriebes muss angepasst werden. Deshalb ist es wichtig, deutliche Vorstellungen über Leistungen und Kosten der Beregnung zu besitzen. Dieser Beitrag stellt die Beregnungskosten in den Mittelpunkt und gibt kurze Hinweise zur Planung von Beregnungsanlagen.
description: LANDTECHNIK, Bd. 54 Nr. 2 (1999)
VP9-03: Optimization of the 3D Multi-level SOT-MRAMs
Creators: Hui Lin
Yanfeng Jiang
Publisher: name: IEEE
Year: 2023

Magnetoresistance and Associated Effects (Virtual)
With the development of electronic technology, semiconductor memory is gradually shifting towards smaller area and power consumption. Spin orbit torque magnetic random-access memory (SOT-MRAM) is one of the competitive substitutes for DRAM and SRAM due to its superior endurance and switching speed[1][2]. In contrast to spin-transfer torque magnetic random-access memory (STT-MRAM), the separation of read and write routes allows SOT-MRAM with lower error rate. However, it density is still too high to be accepted. In recent years, vertical integrated circuits have relied on TSV to complete 3D stacking to ease the pressure of Moore's Law on scaling circuits[3]. SOT-MRAM can take advantage of 3D stacking to reduce power and latency and more importantly to compensate for the loss of density. The implementation of multi-level cells (MLC) can also be effective in increasing integration density and reducing cost per bit, a technology that is applicable to other types of memory such as FLASH[4]. As a simulator, DESTINY includes TSV model to NVSIM to evaluate the performance of MRAM 3D structures[5]. However, the structure in DESTINY is simpler, using a bus layer and interconnect structure between layers, and does not add MLC SOT-MRAM. 3D structures require more complex interconnect structures to truly meet the high density requirements, especially for multi-level SOT-MRAMs. For this reason, a 3D model of unit interconnection using TSV is presented in the paper. Compared to the conventional 2D SOT-MRAM, the area of this structure is reduced by 15%. In addition, the read energy is reduced by 23% because of the structural adjustment. Memory has several components, of which the memory array is the one with the largest area share. This paper explores the spatial structure of the array and proposes a new model which allows more complex interconnect structures to be accomplished on the same area. This corresponds to no change in area, but an increase in the number of interconnected basic units. Since the number of TSVs has been increased, a TSV model is proposed that applies to this structure. Figure 1 shows a schematic representation of this structure. Figure 2 shows the TSV model adapted to this 3D model.References: [1] K. Garello, F. Yasin, and G. S. Kar, 2019 IEEE 11th International Memory Workshop (IMW), p.1-4(2019). [2] M. Baumgartner, K. Garello, J. Mendil, Nature Nanotechnology, Vol.12, p.980-986(2017). [3] W. R. Davis, J. Wilson, S. Mick, IEEE Design & Test of Computers, Vol.22, p.498-510(2005). [4] Y. Jang and J. Park, IEEE Transactions on Circuits and Systems II: Express Briefs, Vol.69, p.1622-1626(2022). [5] M. Poremba, S. Mittal, D. Li, 2015 Design, Automation & Test in Europe Conference & Exhibition (DATE), p.1543-1546(2015).
Zur Bewertung der Flächenverteilung von Saatgut
Creators: name: Griepentrog, Hans-Werner
Publisher: name: LANDTECHNIK
Year: 1999

description: Die Ablagequalität von Sämaschinen beeinflusst den Feldaufgang, die Pflanzenentwicklung und damit auch den Flächenertrag. Zur Bewertung der Ablagequalität ist neben der Tiefenablage die horizontale Flächenverteilung zu berücksichtigen. Eine Optimierung der Pflanzenabstände erhöht Feldaufgang und Ertrag, indem Konkurrenzeffekte um die Wachstumsfaktoren Licht, Wasser und Nährstoffe minimiert werden. Die Flächenverteilung von Saatgut ist abhängig von der Längsverteilungsqualität der Sämaschine, vom Reihenabstand und von der Aussaatmenge. Es wird ein Verfahren zur Darstellung und Bewertung der Flächenverteilung beschrieben, das über Polyganzerlegung Einzelstandflächen eines Bestandes definiert.
description: LANDTECHNIK, Bd. 54 Nr. 2 (1999)
VP12-25: A Pole-Changing Flux Reversal Permanent Magnet Motor
Creators: Yi Du
Ziwei Chen
Feng Xiao
Xiaoyong Zhu
Yi Mao
Publisher: name: IEEE
Year: 2023

Sensors, High Frequency Devices, and Power Devices (Virtual)
Stator permanent magnet (PM) motors have the merits, such as ease of heat management and high torque density because the PMs and winding are located on the stator. So, stator PM motors become one of the potential candidates for electric vehicles. Flux reversal PM (FRPM) motor has the advantages of simple structure and high mechanical reliability. However, due to its constant excitation field, the speed regulation range is usually limited. Pole changing (PC) operation is a traditional method to expand the speed range for induction motors, which can be realized by changing the winding connection, as well as the pole number of armature and rotor fields. But the PC operation cannot be used directly for PM motors because of the unchangeable pole number of PMs. According to the field modulation theory, the PM magnetic field can be modulated into a series of harmonics with different pole numbers by a modulator [1], which provides a scheme for achieving PC PM motors. In this paper, a PC-FRPM motor is proposed. Fig. 1 shows the 12/7-pole PC-FRPM motor, in which the winding and the PMs are both located on the stator, and the rotor is composed of iron core with 7 salient teeth. The key difference is that only one PM magnetized in the radial direction mounts on the surface of each stator tooth, and the magnetization direction of PMs on each adjacent two stator teeth is opposite. So, the pole-pair number of the fundamental component of PM field is 3. Benefiting from this special PM arrangement, the interpole flux leakage can be reduced greatly. Furthermore, due to the modulation function of stator and rotor teeth, a series of harmonics with different pole pairs are generated [2], in which the pole-pair numbers of harmonics with relatively high amplitude are 2, 4, 10 and 16. And the slot pitch angles of 2- and 10-pole-pair components are 60°, and those of the others are 120°. So, two kinds of winding connection can be determined according to these two slot pitch angles to obtain two operation modes, namely Mode I and Mode II to perform the high speed and high torque operation, respectively. As shown in Fig. 2, the speed range can be expanded while maintaining a high torque output.References: [1] M. Cheng, P. Han, and W. Hua, “General airgap field modulation theoryfor electrical machines,” IEEE Trans. Ind. Electron., vol. 64, no. 8, pp. 6063-6073, Aug. 2017. [2] Y. Du, Z. He, X. Zhu, F. Xiao, C. Zhang, L. Xu, Y. Zuo, and L. Quan. “A novel pole-changing permanent magnet vernier motor,” IEEE Trans. Ind. Electron. vol. 70, no. 6, pp. 6110-6120, June 2023.
VP11-10: Optical and Magneto-optical Properties of Pulsed Laser Deposited Thulium Iron Garnet Thin Films
Creators: Apoorva Sharma
Oana T. Ciubotariu
Patrick Matthes
Shun Okano
Vitaly Zviagin
Jana Kalbáčová
Sibylle Gemming
Cameliu Himcinschi
Marius Grundmann
Dietrich R. T. Zahn
Manfred Albrecht
Georgeta Salvan
Publisher: name: IEEE
Year: 2023

Multi-Functional Magnetic Materials and Applications (Virtual)
Garnets are complex orthosilicate minerals that have been used for several centuries as semi-precious gemstones. Among the vast family of garnets, magnetic garnets are of special interest due to their unique properties, such as ferromagnetic insulators [1], ultra-low magnetization damping [2], and high magneto-optical response [3], as well as strong and tunable magnetic anisotropy [4]. This work presents a combined optical and magneto-optical spectroscopic study of Tm3Fe5O12 (TmIG) films on substituted gadolinium gallium garnet (sGGG) substrates, with a detailed analysis of the thickness-dependent properties. Spectroscopic ellipsometry, magneto-optical Kerr effect spectroscopy, and Raman spectroscopy results are presented for TmIG films with a thickness in the range from 20 nm to 300 nm grown on sGGG by pulsed laser deposition. The complex dielectric functions of TmIG and sGGG are determined for the first time. The magneto-optical Kerr effect (MOKE) spectra of the measured sample in the photon energy range from 1.5 eV to 5.0 eV clearly demonstrate the influence of strain in the thin films, which is induced by the lattice mismatch between the TmIG film and the sGGG substrate. The spectra reveal magneto-optical transitions between 2.5 eV and 3.5 eV which are marker spectral features for the stress in the thin films showing a blue shift with increasing film thickness. The corresponding magnetic hysteresis loops recorded using MOKE show an out-of-plane magnetic anisotropy for 50 nm and 70 nm thick films, while the 200 nm and 300 nm thick films exhibit an in-plane anisotropy. The increase in the coercive field with decreasing TmIG film thickness was associated with the stress-induced magnetoelastic anisotropy competing and eventually overcoming the shape anisotropy. In addition, spin-polarized density functional band structure calculations were performed to quantify the epitaxy-induced strain.References: [1] N. Thiery et al., Phys Rev B 97, 1 (2018). [2] C. N. T. Wu et al., Sci Rep 8, 1 (2018). [3] M. Gomi et al., Jpn J Appl Phys 27, L1536 (1988). [4] S. Mokarian Zanjani et al. J Magn Magn Mater 499, 166108 (2020).
FP-01: Probabilistic Computing with Magnetic Tunnel Junctions
Creators: Eleonora Raimondo
Yixin Shao
Andrea Grimaldi
Mario Carpentieri
Pedram Khalili Amiri and Giovanni Finocchio
Publisher: name: IEEE
Year: 2023

Neuromorphic Computing III
Physics-inspired unconventional computing paradigms [1-2] are a topic of great scientific interest due to their high compatibility with scalable hardware implementations for the solution of hard combinatorial optimization problems. Among these, Ising machines (IMs) are a promising class of heuristic solvers [3] due to the flexibility of their energy minimization schedule and to their general graph topology. Probabilistic computing is a general approach based on the concept of IMs [2,3,4], known for its high compatibility with spintronics. In this work we propose a probabilistic bit (p-bit) implementation with three-terminal magnetic tunnel junctions (MTJs), envisioning a hardware probabilistic Ising machine (pIM). The perpendicular MTJ is designed so that the energy landscape of the free layer (FL) magnetization has two stable minima along the z-axis. By applying a spin-orbit torque current (SOT), the FL magnetization is brought to a metastable state aligned along the direction of the spin-current (y-axis). When the SOT is switched off, the FL magnetization relaxes, with equal probability, towards one of the two z-axis directions. The switching probability is tuned with a spin-transfer torque current applied to the third terminal, resulting in a sigmoidal curve when averaging the FL magnetization after the SOT pulse across many events, as shown in Fig. 1. A hardware implementation of a pIM involves considering the geometrical and physical device-to-device variations. To study this, we consider an instance of a maximum satisfiability problem (MAX-SAT) and attempt to reach the optimal while randomly changing the slope of the sigmoidal curve of each p-bit. The variations are sampled from a normal distribution with unit mean and several values of standard deviation σ. The results in Fig. 2 show that the probability of obtaining the optimal solution is only slightly affected for σ less than 0.3. See Ref. [5] for founding statement.References: [1] G. Finocchio, J. Magn. Magn. 521, 167506 (2021). [2] A. Grimaldi, Phys. Rev. Appl. 17, 024052 (2022). [3] N. Mohseni, Nat. Rev. Phys. 4, 363 (2022). [4] K. Y. Camsari, Phys. Rev. X 7, 031014 (2017). [5] This work was supported under the project number 101070287 - SWAN-on-chip - HORIZONCL4-2021-DIGITAL-EMERGING-01, the project PRIN 2020LWPKH7 “The Italian factory of micromagnetic modelling and spintronics” funded by the Italian Ministry of University and Research (MUR), and by the PETASPIN association (www.petaspin.com). The work at Northwestern University was supported by the National Science Foundation (NSF) grant numbers 1919109 and 2106562.
Additional file 1 of MR CLEAN-NO IV: intravenous treatment followed by endovascular treatment versus direct endovascular treatment for acute ischemic stroke caused by a proximal intracranial occlusion—study protocol for a randomized clinical trial
Creators: name: Treurniet, Kilian M.
name: LeCouffe, Natalie E.
name: Kappelhof, Manon
name: Emmer, Bart J.
name: Es, Adriaan C. G. M. Van
name: Jelis Boiten
name: Lycklama, Geert J.
name: Keizer, Koos
name: Yo, Lonneke S. F.
name: Lingsma, Hester F.
name: Zwam, Wim H. Van
name: Ridder, Inger De
name: Oostenbrugge, Robert J. Van
name: Lugt, Aad Van Der
name: Dippel, Diederik W. J.
name: Coutinho, Jonathan M.
name: Roos, Yvo B. W. E. M.
name: Majoie, Charles B. L. M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Additional file 1. List of MRCLEAN-NO IV collaborators.
The structure of IR divergences in celestial gluon amplitudes
Creators: name: González, Hernán A.
name: Rojas, Francisco
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The all-loop resummation of SU$(N)$ gauge theory amplitudes is known to factorize into an IR-divergent (soft and collinear) factor and a finite (hard) piece. The divergent factor is universal, whereas the hard function is a process-dependent quantity. We prove that this factorization persists for the corresponding celestial amplitudes. Moreover, the soft/collinear factor becomes a scalar correlator of the product of renormalized Wilson lines defined in terms of celestial data. Their effect on the hard amplitude is a shift in the scaling dimensions by an infinite amount, proportional to the cusp anomalous dimension. This leads us to conclude that the celestial-IR-safe gluon amplitude corresponds to a expectation value of operators dressed with Wilson line primaries. These results hold for finite $N$. In the large $N$ limit, we show that the soft/collinear correlator can be described in terms of vertex operators in a Coulomb gas of colored scalar primaries with nearest neighbor interactions. In the particular cases of four and five gluons in planar $\mathcal{N}=4$ SYM theory, where the hard factor is known to exponentiate, we establish that the Mellin transform converges in the UV thanks to the fact that the cusp anomalous dimension is a positive quantity. In other words, the very existence of the full celestial amplitude is owed to the positivity of the cusp anomalous dimension.
description: 28 pages, no figures (v2: minor corrections, references added)
VP12-12: Torque Improvement of E-Core FSPM Motor using Double-Layer Distributed Armature Winding
Creators: Yi Mao
Feng Xiao
Yi Du
Xiaoyong Zhu
Li Quan and Chao Zhang
Publisher: name: IEEE
Year: 2023

Sensors, High Frequency Devices, and Power Devices (Virtual)
With the excellent achievement of permanent magnet (PM) materials, PM motors have attracted much attention for decades. Stator PM motor, in which the PMs and armature winding are located on the stator, can achieve simple rotor structure and favorable PM temperature management. Flux switching PM (FSPM) motor is one of the most popular stator PM motors due to the high torque density. This paper proposes a novel double-layer distributed armature winding configuration for 24/22-pole FSPM motor equipped with E-shaped stator iron core [1] so as to obtain a higher torque density. According to the air-gap flux modulation theory, the PM magnetic motive force of 24/22-pole E-core FSPM motors is modulated by the stator and rotor salient pole, generating the air-gap flux density with multiple excitation field harmonics. However, the excitation harmonics of the 24/22-pole E-core FSPM motor share different slot pitch angles, including 60 and 240 degrees. Therefore, when conventional winding design method based on the pole-pair number of armature winding (Pw=Nr-PPM) is applied [2], only the excitation harmonics with the same slot pith angle as that of the harmonic of Pw pole-pair number are considered, leading to the underutilization of the main excitation field harmonics. In this paper, all of the main excitation field harmonics are analyzed to obtain the synthesis coil electromotive force, based on which a novel double-layer distributed winding configuration presented in Fig. 1 can be designed to fully utilize the main excitation field harmonics. Thus, the torque is improved efficiently. The electromagnetic performances of the proposed motor are investigated by finite element analysis. When compared with the conventional winding configuration with the pole-pair number of Pw, the output torque of the proposed scheme can be improved by 15.3% as shown in Fig. 2.References: [1] Y. Mao, Y. Du, F. Xiao, X. Zhu, L. Quan and D. Zhou, “Design and optimization of a pole changing flux switching permanent magnet motor,” IEEE Tran. Ind. Electron., vol. 70, no. 12, pp. 12636-12647, Dec. 2023. [2] Y. Shi, L. Jian, J. Wei, Z. Shao, W. Li and C. C. Chan, “A new perspective on the operating principle of flux-switching permanent-magnet machines,” IEEE Tran. Ind. Electron., vol. 63, no. 3, pp. 1425-1437, Mar. 2016.
VP3-08: Reduction effect of coercivity of electroplated Fe-Pt film magnets by chloride ion in plating baths
Creators: Daiki Fukushima
Takeshi Yanai
Ryuta Narabayashi
Naoki Ogushi
Yuito Yamaguchi
Akihiro Yamashita
Masaki Nakano and Hirotoshi Fukunaga
Publisher: name: IEEE
Year: 2023

Hard Magnetic Materials (Virtual)
Owing to high crystalline magnetic anisotropy and excellent corrosion resistance, Platinum-based magnets are expected to be used in medical applications. Recently, we reported Fe-Pt thick films electroplated from plating baths containing different concentrations of NaCl and pointed out the possibility of coercivity enhancement by Na ions [1,2]. In this study, we focused on Cl ions and evaluated the effect of Cl ions on the coercivity of electroplated Fe-Pt film magnets. We employed an electroplating method using a dc current source. The bath composition and the plating conditions were almost the same as those in the previous study. The as-plated films on Cu substrates were annealed at 700°C for 5 min in a vacuum to obtain the fct structure. Figure 1 shows the hysteresis loops when the Cl ion concentration in the plating baths was changed from 0 to 0.86 mol/L using the NH4Cl reagent. As shown in Fig.1, the coercivity decreased with increasing Cl ion concentration. In this case, as NH4 ion concentration was also changed, we employed another method to change the Cl ion concentration. Cl2 gases are generated from the anode in our experiment (2Cl- → Cl2 + 2e-). Therefore, we repleted the electroplating using the same plating bath. Figure 2 shows the coercivity of the annealed films as a function of the pre-electroplated time tpre. tpre = 0 min indicates the fresh baths, and tpre ≠ 0 min means the used baths. The plating times were set at 5 or 15 min. As shown in Fig.2, the coercivity increased with increasing the pre-electroplating time. The difference in the coercivity at tpre = 0 min is attributable to the thickness. The thickness of the films plated for 5 min is thinner than that for 15 min. The magnetic properties of thin films tend to deteriorate by diffusion of Cu from the substrate [3]. Although the magnitude of the coercivity between the results of 5 min and 15 min, we obtained the same tendency of the coercivity increasing. As mentioned above, the pre-electroplating reduces the Cl ion concentration; we, therefore, found that the Cl ions decrease the coercivity of the electroplated Fe-Pt films.References: [1]T. Yanai, J. Honda, R. Hamamura et al., “Effect of Na ions in plating baths on coercivity of electroplated Fe-Pt film-magnets”, J of Alloys Compounds, 752, (2018) 133. [2]T.Yanai, J. Honda, R. Hamamura et al., “Effect of Na and Cl Ions on Coercivity of Electroplated Fe-Pt Film-Magnets” J. Electron. Mater, 48, (2019) 1412. [3]T. Yanai, Y. Omagari, S. Furutani et al., “High-temperature properties of Fe-Pt film-magnets prepared by electroplating method”, AIP Advances, 10, (2020) 015149.
Constraints on oscillating dark energy models
Creators: name: Kurek, Aleksandra
name: Hrycyna, Orest
name: Szydlowski, Marek
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The oscillating scenario of route to Lambda was recently proposed by us arXiv:0704.1651 as an alternative to a cosmological constant in a explanation of the current accelerating universe. In this scenario phantom scalar field conformally coupled to gravity drives the accelerating phase of the universe. In our model $Λ$CDM appears as a global attractor in the phase space. In this paper we investigate observational constraints on this scenario from recent measurements of distant supernovae type Ia, CMB R shift, BAO and $H(z)$ observational data. The Bayesian methods of model selection are used in comparison the model with concordance $Λ$CDM one as well as with model with dynamical dark energy parametrised by linear form. We conclude that $Λ$CDM is favoured over FRW model with dynamical oscillating dark energy. Our analysis also demonstrate that FRW model with oscillating dark energy is favoured over FRW model with decaying dark energy parametrised in linear way.
description: revtex4, 7 pages, 3 figures; (v2) 12 pages, 11 figures; Phys. Lett. B (in press)
Technik zur exakten Längsverteilung organischer Reststoffe
Creators: name: Hügle, Thomas
Publisher: name: LANDTECHNIK
Year: 1999

description: Standardfeststoffstreuer dosieren durch Fräswalzen und Kratzboden das Streugut auf die Streuteller. Der Materialfluss ist nicht kontinuierlich, sondern in hohem Maße von der Sorgfalt beim Beladen des Streuers abhängig. Dies führt beim Ausbringen zu einer ungleichmäßigen Längsverteilung Es sind daher Techniken notwendig, die für einen gleichmäßigen Materialfluss sorgen, oder es muss Regelungstechnik eingesetzt werden, die auf Störgrößen während der Ausbringung mit einer entsprechenden Änderung des Materialflusses reagiert.
description: LANDTECHNIK, Bd. 54 Nr. 2 (1999)
Effizienz der teilflächenspezifischen Düngung
Creators: name: Engeln, Petra
name: Hackbarth, Sabine
name: Treue, Peter
Publisher: name: LANDTECHNIK
Year: 1999

description: Begriffe wie „nachhaltige Produktion“ und „standortangepasste Bewirtschaftung“ prägen die aktuelle Diskussion. Das Institut hat seit drei Jahren auf Betriebsschlägen von 30 ha der Geest und auf Endmoränen-Standorten mit praxisgemäßen Maschinen Versuche durchgeführt. Die Teilflächen wurden definiert und entsprechend N-Dünger in drei verschiedenen Varianten appliziert. Die Produktivität wurde entsprechend des Reliefs und der Ackerzahlen analysiert.
description: LANDTECHNIK, Bd. 54 Nr. 2 (1999)
Improving blast resistance of the rice restorer line, Hui 316, by introducing Pi9 or Pi2 with marker-assisted selection
Creators: name: Tian, Dagang
name: Guo, Xinrui
name: Zhang, Zhujian
name: Wang, Mo
name: Wang, Feng
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Hematology
subject: Plant Biology

description: Introducing resistance (R) genes into a susceptible rice cultivar is an effective strategy to achieve broad-spectrum and durable disease resistance. During the breeding process, marker-assisted selection (MAS) provides an efficient approach for direct screening of the progeny containing the R gene in a population. In this study, we designed an optimized polymerase chain reaction marker, Pi9/2, targeting the same polymorphic region of our previously developed Pi9-Pro and demonstrated that Pi9/2 is more specific than Pi9-Pro for the blast resistance genes Pi9 and Pi2 in MAS. With the assistance of Pi9/2, Pi9 and Pi2, from donor lines 75-1-127 and C101A51, respectively, were separately introgressed into the strong rice restorer line, Hui 316, by backcrossing. The two improved representative Hui 316 lines, Hui 316-Pi9 and Hui 316-Pi2, displayed similar agronomic traits to Hui 316. Inoculation tests for blast resistance revealed that Hui 316-Pi9 and Hui 316-Pi2 showed markedly enhanced resistance to blast fungi compared with Hui 316. Investigation of agronomic traits for yield and rice quality indicated that the hybrid combinations from Hui 316-Pi9 or Hui 316-Pi2 crossed with male sterility lines were similar to those derived from Hui 316. Therefore, introgression of Pi9 or Pi2 into with Hui 316 could improve its resistance to blast with little influence on its restoring ability, which will facilitate the application of Hui 316 in rice production. These results also indicate that the optimized marker, Pi9/2, is effective in introducing Pi9 or Pi2 by MAS to improve blast resistance of rice cultivars.
Ertragskartierung in selbstfahrenden Feldhäckslern
Creators: name: Ehlert, Detlef
Publisher: name: LANDTECHNIK
Year: 1999

description: Feldhäcksler mit Einrichtungen zur Ertragskartierung können einen wichtigen Beitrag zur Erfassung der ortsdifferenzierten Ertragsfähigkeit innerhalb eines Schlages leisten. Durch Messen des Spaltes zwischen Press- und Glattwalze vor der Schneidtrommel kann ein dem momentanen Gutdurchsatz entsprechender Messwert gewonnen werden, der unter Einbeziehen weiterer Größen die Anlage von Ertragskarten ermöglicht. Mit diesem volumetrischen Messprinzip werden Genauigkeiten erreicht, die eine Aussage zur ortsdifferenzierten relativen Ertragsfähigkeit gestatten.
description: LANDTECHNIK, Bd. 54 Nr. 2 (1999)
VP13-02: Magnetic first-order reversal curves for highly neutron-irradiated Fe-Cu alloys
Creators: Satoru Kobayashi
Keigo Yomogida
Eiji Nomura
Publisher: name: IEEE
Year: 2023

Soft Magnetic Materials (Virtual)
Non-destructive evaluation (NDE) using a magnetic method has the potential for monitoring the level of irradiation hardening of reactor pressure vessel (RPV) steels. Recently, we have focused on a magnetic first-order reversal curve (FORC) method, because of a possibility for distinguishing magnetic regions with different magnetic hardness; magnetically hard region including nanoscale Cu precipitates and soft matrix. Previous FORC study for RPV steels revealed changes of FORC peaks after neutron irradiation; however, due to complex initial microstructures, information about irradiation-induced Cu precipitation was not fully extracted [1]. In this study, we have studied highly neutron-irradiated Fe-1wt%Cu alloys, which are simple simulated materials of irradiated RPV steels, to elucidate intrinsic FORC features due to Cu precipitation. To see the effect of Cu precipitation on initial microstructure, Fe-1wt%Cu alloys, which were cold-rolled with 0%, 10% and 20% reduction, were used. Figures 1(a) and 1(b) show a typical example of FORC diagrams before and after irradiation to fluence of 9.7×1019 n/cm2 for 0% reduction. In Figs. 1(c) and 1(d), a half-width at half maximum (HWHM) of the FORC distribution peak along the coercivity (Hc) and interaction field (Hu) directions is given, respectively. For samples with 0% and 10% reduction the FORC peak along the Hc direction becomes broad in the initial stage of irradiation, whereas for 20% reduction the broadening appears in the later stage (Fig. 1(c)). This broadening reflects the evolution of nanoscale Cu precipitates, which increases microstructural inhomogeneity. On the other hand, the FORC peak along the Hu direction is significantly broadened after the irradiation for all the samples (Fig. 1(d)), implying the enhancement of magnetostatic interactions between magnetic region with nanoscale Cu precipitates and Fe matrix with lesser dissolved Cu atoms. These observations suggest that a FORC method is useful to monitor microstructural changes during neutron irradiation.References: [1] S. Kobayashi, H. Murakami, T. Yamamoto, G.R. Odette, A. Horvath, A. Feoktystov, L. Almasy, J. Nucl. Mater. 552 (2021) 152973/1-7.
Isolation of two trypsin-like proteases associated with the outer membranes of Bacteroides gingivalis
Creators: name: Scott, Helen G.
Publisher: name: University of British Columbia
Year: 2010

description: Two proteases, P-1 and P-4, present in the outer membranes of Bacteroides gingivalis ATCC 33277, were isolated and partially purified by SDS-PAGE. The purification procedures resulted in a specific activity 45-fold (P-1) and 40-fold (P-4) greater than that of the crude fractions. Electrophoresis of proteolytically active P-1 produced three bands corresponding to molecular weights of 235, 220 and 200 kD whereas electrophoresis of proteolytically active P-4 produced one major band corresponding to 74 kD. The optimum temperature and pH for activity were determined using N-∂-benzoyl-D-arginine-p-nitroanilide as substrate. The proteases were most active at 37 °C and at pH values between 6.0 and 6.5. Both proteases required a reducing agent for activity and were inhibited by a variety of serine and thiol protease inhibitors. Arginine-containing peptides were readily hydrolyzed whereas the proteases were less active against glycine-containing peptides. The proteases hydrolyzed IgA, IgG, gelatin, azocoll and azoalbumin; acid-soluble collagen was not degraded. The results of this investigation suggest that these are trypsin-like proteases which have a thiol component as part of the active site.
Irrational vs. rational charge and statistics in two-dimensional quantum systems
Creators: name: Chamon, Claudio
name: Hou, Chang-Yu
name: Jackiw, Roman
name: Mudry, Christopher
name: Pi, So-Young
name: Schnyder, Andreas P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that quasiparticle excitations with irrational charge and irrational exchange statistics exist in tight-biding systems described, in the continuum approximation, by the Dirac equation in (2+1)-dimensional space and time. These excitations can be deconfined at zero temperature, but when they are, the charge re-rationalizes to the value 1/2 and the exchange statistics to that of "quartons" (half-semions).
description: 4 pages, 2 figures
Schwingungsprobleme beim praktischen Einsatz von Drehkolbenpumpen
Creators: name: Türk, Meno
name: Hörnig, Günter
name: Verhülsdonk, Bernd
Publisher: name: LANDTECHNIK
Year: 1999

description: Ventillose rotierende Verdrängerpumpen werden zum Fördern von konzentrierten Suspensionen wie Gülle oder Flüssigfutter eingesetzt. Nachteilig ist der ungleichmäßige Verdrängungsvorgang, der zu Druckpulsationen und Vibrationsschwingungen von Pumpe und Rohrleitungen führen kann. Die mechanischen Ursachen der Pulsation sind bekannt. Als Konsequenz wird eine neuentwickelte Kolbenbauform dargestellt. Praktische Messungen belegen das bessere Schwingungsverhalten schrägverzahnter Drehkolben bei verschiedenen Fördermedien im Druck- und im Saugbereich im Vergleich zu bisherigen Ovalkolben.
description: LANDTECHNIK, Bd. 54 Nr. 1 (1999)
Einfluss verschiedener Tränkesysteme auf die Mast- und Schlachtleistung von Masthähnchen
Creators: name: Najati, Saeid
name: Van Den Weghe, Herman
Publisher: name: LANDTECHNIK
Year: 1999

description: In einer Hähnchenmastanlage wurden vier verschiedene Tränkesysteme vergleichend untersucht. Im Mittelpunkt der Untersuchungen steht die Frage nach der Beeinflussung der Mast-und Schlachtleistung von Masthähnchen durch den Einsatz verschiedener Tränkesysteme. Vier handelsübliche Nippeltränkesysteme wurden, unter besonderer Berücksichtigung der Einstreubeschaffenheit, auf ihre Eignung für die Hähnchenmast geprüft.
description: LANDTECHNIK, Bd. 54 Nr. 1 (1999)
Remarks on N_c dependence of decays of exotic baryons
Creators: name: Piesciuk, Karolina
name: Praszalowicz, Michal
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the N_c dependence of the decay widths of exotic eikosiheptaplet within the framework of Chral Quark Soliton Model. We also discuss generalizations of regular baryon representations for arbitrary N_c.
description: 8 pages, 6 figures to be published in proceedings of YKIS06 in Progress of Theoretical Physics. In v2 minor typos corrected
Sharp transition to strongly anomalous transport in unsaturated porous media
Creators: name: Velásquez-Parra, Andrés
name: Aquino, Tomás
name: Willmann, Matthias
name: Méheust, Yves
name: Borgne, Tanguy Le
name: Jiménez-Martínez, Joaquín
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The simultaneous presence of liquid and gas in porous media increases flow heterogeneity compared to saturated flows. However, so far the impact of saturation on flow statistics and transport dynamics remained unclear. Here, we develop a theoretical framework that captures the impact of flow reorganization on the statistics of pore-scale fluid velocities, due to the presence of gas in the pore space, which leads to the development of a highly-structured flow field. Preferential flow is distributed spatially through the denoted backbone and flow recirculation occurs in dead-end regions branching from it. This induces a marked change in the scaling of the velocity PDF compared to the saturated case, and a sharp transition to strongly anomalous transport. We develop a transport model based on the continuous time random walk theory that successfully predicts advective transport dynamics for all saturation degrees. Our results provide a new modelling framework linking phase heterogeneity to flow heterogeneity and to transport in unsaturated media.