cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Restoring grasslands in southern Ontario sandpits : plant and soil food web responses to arbuscular mycorrhizal fungal inoculum, biochar, and municipal compost
Creators: name: Ohsowski, Brian Matthew
Publisher: name: University of British Columbia
Year: 2015

description: Habitat destruction and land use change are among the anthropogenic influences affecting many ecosystems. Sandpit mining often restricts grassland plant restoration efforts due to the abioticially stressed mine substrate, a lack of viable plant symbionts, and disrupted multi-trophic interactions in soil food webs. Recently excavated sandpits can be ameliorated with soil amendments and arbuscular mycorrhizal fungal inoculum to address these degraded substrate conditions, potentially improving plant performance and accelerating soil food web development. This dissertation describes the results of a multi-year grassland restoration project established in southern Ontario that optimized industrial-scale grassland restoration protocol in post-extraction sandpits. This research tested the effect of soil amendment rate (municipal compost, biochar) and arbuscular mycorrhizal (AM) fungal inoculum (Rhizophagus irregularis) in a grassland plant plug trial and a seed application trial. In the plant plug trial, the multi-year effects of the experimental treatments on plant growth, AM fungal colonization of roots, soil microbial biomass (i.e. bacteria and fungi) and soil animal abundance (i.e. nematodes, Collembola, and mites) were explored over two growing seasons. In the plant plug trial, 20T ha-¹ (tons hectare-¹) of compost mixed with a low rate of biochar (10T ha-¹) yielded the largest positive effect on total plant biomass, microbial community biomass, and soil animal abundance after two growing seasons. AM fungal inoculation did not influence total plant biomass or soil food web development during this trial. In the seed application trial, the multi-year effects of increasing rates of compost and biochar (0T ha-¹ to 40T ha-¹) were explored for total plant cover over three growing seasons. AM fungal inoculation combined with high rates of compost (20T ha-¹ and 40T ha-¹) and biochar (20T ha-¹ and 40T ha-¹) resulted in the highest plant cover over three growing seasons compared to controls. Our results indicate that: (1) co-amending mine substrates with compost, biochar, and AM fungal inoculum are practical land management tools that improve grassland plant growth while increasing soil food web development, (2) AM fungal inoculum increases plant cover when applying seed with high rates of compost + biochar, and (3) amending post-mine substrates with biochar as a solitary amendment may increase biotic stress in the sandpit environment during restoration. I suggest that restoration practitioners emphasize soil community development in tandem with plant community growth when restoring sandpits to maximize restoration success.
Mesophase formation in a system of top-shaped hard molecules: Density functional theory and Monte Carlo simulation
Creators: name: Heras, D. de las
name: Varga, S.
name: Vesely, F. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present the phase diagram of a system of mesogenic top-shaped molecules based on the Parsons- Lee density functional theory and Monte Carlo simulation. The molecules are modeled as a hard spherocylinder with a hard sphere embedded in its center. The stability of five different phases is studied, namely, isotropic, nematic, smectic A, smectic C, and columnar phases. The positionally ordered phases are investigated only for the case of parallel alignment. It is found that the central spherical unit destabilizes the nematic with respect to the isotropic phase, while increasing the length of the cylinder has the opposite effect. Also, the central hard sphere has a strong destabilizing effect on the smectic A phase, due the inefficient packing of the molecules into layers. For large hard sphere units the smectic A phase is completely replaced by a smectic C structure. The columnar phase is first stabilized with increasing diameter of the central unit, but for very large hard sphere units it becomes less stable again. The density functional results are in good agreement with the simulations.
description: 30 pages, 9 figures, 2 tables
Effect of geometrical and process parameters on the quality of open moulded composite parts with sharp corners : a decision-based approach
Creators: name: Torres, Juan David
Publisher: name: University of British Columbia
Year: 2015

description: The use of autoclaves and ovens in modern composite manufacturing processes has shown a potential to greatly control the geometry and structural properties of composite materials. The use of such manufacturing tools has been supported by numerical tools and optimization/statistical methods, in order to further improve the quality of composite products. However, the costs associated with these advanced manufacturing techniques are not always acceptable for all Fiber Reinforced Composite (FRC) manufacturers. In particular, for large products with low production rates (e.g., marine and automotive industries), open moulding are preferred as they typically offer the best compromise between the quality of the part and manufacturing production cost. The quality of open-moulded parts, however, is highly dependent on the skill of the operator, hence resulting in possible variations in part properties, particularly for geometrically complex parts. This variation often causes out-of-specification products, resulting in costly trial and error approaches to minimize the product defects. The purpose of this thesis was to study the FRC process conditions that have a statistically significant effect on the generation of defects in open-moulded parts with sharp corner (i.e., small radius) features. Samples with different geometrical, material and process parameters were manufactured. Defects such as void content, corner fiber bridging, fabric formability, fiber misalignment and bending resistance of the material were evaluated through different characterization techniques. The statistical analysis of the data has provided new means to determine the contribution of each parameter to the final quality of the composite part. The results suggest that the part radius and part thickness both have significant effects on the bending resistance of the FRC specimens. Also, it was observed that reinforcement orientation has a significant effect on the formability and surface defects around the part corners. Finally, a novel Multiple Criteria Decision Making (MCDM) approach has been developed using “signal to noise” ratios with subjective and objective weighting, in order to identify the optimum design parameters for both aesthetic and structural properties of the open moulded FRC parts with sharp corners.
CCD Photometric Study of the Contact Binary TX Cnc in the Young Open Cluster NGC 2632
Creators: name: Liang, Liu
name: Shengbang, Qian
name: Soonthornthum, BOONRUCKSAR
name: Liying, Zhu
name: Jiajia, He
name: Yuan, J. -Z.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: TX Cnc is a member of the young open cluster NGC 2632. In the present paper, four CCD epochs of light minimum and a complete V light curve of TX Cnc are presented. A period investigation based on all available photoelectric or CCD data showed that it is found to be superimposed on a long-term increase ($dP/dt=+3.97\times{10^{-8}}$\,days/year), and a weak evidence suggests that it includes a small-amplitude period oscillation ($A_3=0.^{d}0028$; $T_3=26.6\,years$). The light curves in the V band obtained in 2004 were analyzed with the 2003 version of the W-D code. It was shown that TX Cnc is an overcontact binary system with a degree of contact factor $f=24.8%(\pm0.9%)$. The absolute parameters of the system were calculated: $M_1=1.319\pm0.007M_{\odot}$, $M_2=0.600\pm0.01M_{\odot}$; $R_1=1.28\pm0.19R_{\odot}$, $R_2=0.91\pm0.13R_{\odot}$. TX Cnc may be on the TRO-controlled stage of the evolutionary scheme proposed by Qian (2001a, b; 2003a), and may contains an invisible tertiary component ($m_3\approx0.097M_{\odot}$). If this is true, the tertiary component has played an important role in the formation and evolution of TX Cnc by removing angular momentum from the central system(Pribulla & Rucinski, 2006). In this way the contact binary configuration can be formed in the short life time of a young open cluster via AML.
NP-hardness of Deciding Convexity of Quartic Polynomials and Related Problems
Creators: name: Ahmadi, Amir Ali
name: Olshevsky, Alex
name: Parrilo, Pablo A.
name: Tsitsiklis, John N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optimization and Control (math.OC)
subject: Computational Complexity (cs.CC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We show that unless P=NP, there exists no polynomial time (or even pseudo-polynomial time) algorithm that can decide whether a multivariate polynomial of degree four (or higher even degree) is globally convex. This solves a problem that has been open since 1992 when N. Z. Shor asked for the complexity of deciding convexity for quartic polynomials. We also prove that deciding strict convexity, strong convexity, quasiconvexity, and pseudoconvexity of polynomials of even degree four or higher is strongly NP-hard. By contrast, we show that quasiconvexity and pseudoconvexity of odd degree polynomials can be decided in polynomial time.
description: 20 pages
Gap opening in topological-defect lattices in graphene
Creators: name: da Silva-Araújo, Joice
name: Chacham, H.
name: Nunes, R. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Ab initio calculations indicate that topological-defect networks in graphene display the full variety of single-particle electronic structures, including Dirac-fermion null-gap semiconductors, as well as metallic and semiconducting systems of very low formation energies with respect to a pristine graphene sheet. Corrugation induced by the topological defects further reduces the energy and tends to reduce the density of states at the Fermi level, to widen the gaps, or even to lead to gap opening in some cases where the parent planar geometry is metallic.
description: 10 pages, 3 figures in reprint format - 4 pages, 3 figures in published version
title: The book collections of Llanthony Priory from foundation until dissolution (c. 1100-1538)
Creators: name: Bennett, Kirsty
Publisher: name: University of Kent
Year: 2021

description: This thesis explores the library of the Augustinian priory of Llanthony (which had dual sites in Wales and Gloucester) from its inception c. 1100 until its Dissolution in 1538. The unusually high number of extant manuscripts - approximately 180, plus two printed books, ranging in date from the ninth to the sixteenth centuries - surviving from Llanthony forms a rich resource for the study of the collection. Many of these manuscripts (circa 90) are of twelfth-century date. Lianthony's earliest manuscripts are an example of book collecting in medieval Wales, whilst the community became involved in west-country palaeographical, decorative and copying networks within a short time of its foundation. Llanthony's existence across dual sites from 1136, followed by the division and eventual reunification of the community, has interesting implications for its book provision. Other evidence pertaining to the history of the library complements that of the manuscripts. Chiefly, a book-list of c. 1350 is an invaluable tool for the reconstruction of part of the collection in the"later fourteenth century, illuminating the arrangement, storage and use of the books. A large donation of books in the 1300s, the volumes acquired by a canon-scholar of Llanthony Secunda whilst at Oxford in the early 1400s, and `housekeeping' work in the library by another canon in the fifteenth century demonstrate the impact of individual impetus on the collection. In tandem, the manuscripts and the documentary evidence give an unrivalled insight into the book-holding of an English Augustinian community. Following a summary of the priory's history, a series of analytical chapters examines the origins, development and growth of the book collection. The conclusion sets Llanthony's collection as a whole into a broader context in order to assess the extent to which it was typical. Appendices include a handlist giving summary details of the manuscripts on which this study is based.
Folding and unfolding of a triple-branch DNA molecule with four conformational states
Creators: name: Engel, Sandra
name: Alemany, Anna
name: Forns, Nuria
name: Maass, Philipp
name: Ritort, Felix
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Single-molecule experiments provide new insights into biological processes hitherto not accessible by measurements performed on bulk systems. We report on a study of the kinetics of a triple-branch DNA molecule with four conformational states by pulling experiments with optical tweezers and theoretical modelling. Three distinct force rips associated with different transitions between the conformational states are observed in the folding and unfolding trajectories. By applying transition rate theory to a free energy model of the molecule, probability distributions for the first rupture forces of the different transitions are calculated. Good agreement of the theoretical predictions with the experimental findings is achieved. Furthermore, due to our specific design of the molecule, we found a useful method to identify permanently frayed molecules by estimating the number of opened basepairs from the measured force jump values.
description: 17 pages, 12 figures
On Transmit Antenna Selection for Multiuser MIMO Systems with Dirty Paper Coding
Creators: name: Mohaisen, Manar
name: Chang, KyungHi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we address the transmit antenna selection in multi-user MIMO systems with precoding. The optimum and reduced complexity sub-optimum antenna selection algorithms are introduced. QR-decomposition (QRD) based antenna selection is investigated and the reason behind its sub-optimality is analytically derived. We introduce the conventional QRD-based algorithm and propose an efficient QRD-based transmit antenna scheme (maxR) that is both implementation and performance efficient. Moreover, we derive explicit formulae for the computational complexities of the aforementioned algorithms. Simulation results and analysis demonstrate that the proposed maxR algorithm requires only 1% of the computational efforts required by the optimal algorithm for a degradation of 1dB and 0.1dB in the case of linear zero-forcing and Tomlinson-Harashima precoding schemes, respectively.
description: 5 pages, 6 figures, 1 table, [The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC-09)]
Reply to: Atom gravimeters and the gravitational redshift
Creators: name: Mueller, Holger
name: Peters, Achim
name: Chu, Steven
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We stand by our result [H. Mueller et al., Nature 463, 926-929 (2010)]. The comment [P. Wolf et al., Nature 467, E1 (2010)] revisits an interesting issue that has been known for decades, the relationship between test of the universality of free fall and redshift experiments. However, it arrives at its conclusions by applying the laws of physics that are questioned by redshift experiments; this precludes the existence of measurable signals. Since this issue applies to all classical redshift tests as well as atom interferometry redshift tests, these experiments are equivalent in all aspects in question.
description: Reply to P. Wolf et al., arXiv:1009.0602
Investigation on sensing properties and mechanism of a simple fluorescent probe with 2,4,6-trinitrophenol in aqueous solution
Creators: name: Wang, Bin
name: Jiang, Fan
name: Ma, Xiangmei
name: Ma, Jing
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: In this article, a novel fluorescent probe 2-[4-(4-Amino-benzenesulfonyl)-phenyl]-6-bromo-benzo[de]isoquinoline-1,3-dione (L) based on aggregation-caused quenching (ACQ)-type naphthalimide was designed and synthesized, which adopt twisted molecular conformation. The probe exhibited high sensitivity and selectivity for 2,4,6-trinitrophenol (TNP) in aqueous medium. In addition, the fluorescence changes induced by TNP exhibit a sharp contrast where the visual fluorescence color of L changed from grass yellow to blackish green under UV-lamp irradiation upon the addition of TNP to L solution. The detection limit of L for TNP could reach as low as 0.127 μM. The emission quenching mechanisms of the sensing properties of L toward TNP were preliminarily studied as well. These results demonstrate that L can serve as an excellent sensor for TNP through a luminescence quenching process.
Dem Andenken des verewigten Antistes Dr. Georg Finsler (1819-1899)
Creators: name: Scheller, Johann Kaspar
Publisher: name: Buchdruckerei der Neuen Zürcher Zeitung
Year: 1899
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Finsler, Georg

description: Separatabdruck aus der "Neuen Zürcher Zeitung"
Fusion of $^{6}$Li with $^{159}$Tb} at near barrier energies
Creators: name: Pradhan, M. K.
name: Mukherjee, A.
name: Basu, P.
name: Goswami, A.
name: Kshetri, R.
name: Palit, R.
name: Parkar, V. V.
name: Ray, M.
name: Roy, Subinit
name: Chowdhury, P. Roy
name: Sarkar, M. Saha
name: Santra, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Complete and incomplete fusion cross sections for $^{6}$Li+$^{159}$Tb have been measured at energies around the Coulomb barrier by the $γ$-ray method. The measurements show that the complete fusion cross sections at above-barrier energies are suppressed by $\sim$34% compared to the coupled channels calculations. A comparison of the complete fusion cross sections at above-barrier energies with the existing data of $^{11,10}$B+$^{159}$Tb and $^{7}$Li+$^{159}$Tb shows that the extent of suppression is correlated with the $α$-separation energies of the projectiles. It has been argued that the Dy isotopes produced in the reaction $^{6}$Li+$^{159}$Tb, at below-barrier energies are primarily due to the $d$-transfer to unbound states of $^{159}$Tb, while both transfer and incomplete fusion processes contribute at above-barrier energies.
description: Phys. Rev. C (accepted)
The off-resonant dielectronic recombination in a collision of an electron with a heavy hydrogen-like ion
Creators: name: Yerokhin, Vladimir A.
name: Surzhykov, Andrey
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The recombination of an electron with an (initially) hydrogen-like ion is investigated. The effect of the electron-electron interaction is treated rigorously to the first order in the parameter 1/Z and within the screening-potential approximation to higher orders in 1/Z, with Z being the nuclear charge number. The two-electron correction contains the dielectronic-recombination part, which contributes to the process not only under the resonance condition for the projectile energy but also in the regions far from resonances. The mechanism of the off-resonant dielectronic recombination is studied in detail.
description: 9 pages, 2 tables, 3 figures
Evidence for the Dominance of Indirect Effects in 50 Trophically-Based Ecosystem Networks
Creators: name: Salas, Andria K.
name: Borrett, Stuart R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: Indirect effects are powerful influences in ecosystems that may maintain species diversity and alter apparent relationships between species in surprising ways. Here, we applied Network Environ Analysis to 50 empirically-based trophic ecosystem models to test the hypothesis that indirect flows dominate direct flows in ecosystem networks. Further, we used Monte Carlo based perturbations to investigate the robustness of these results to potential error in the underlying data. To explain our findings, we further investigated the importance of the microbial food web in recycling energy-matter using components of the Finn Cycling Index and analysis of Environ Centrality. We found that indirect flows dominate direct flows in 37/50 (74.0%) models. This increases to 31/35 (88.5%) models when we consider only models that have cycling structure and a representation of the microbial food web. The uncertainty analysis reveals that there is less error in the I/D values than the $\pm$ 5% error introduced into the models, suggesting the results are robust to uncertainty. Our results show that the microbial food web mediates a substantial percentage of cycling in some systems (median = 30.2%), but its role is highly variable in these models, in agreement with the literature. Our results, combined with previous work, strongly suggest that indirect effects are dominant components of activity in ecosystems.
description: 26 pages, 5 figures, 1 table
High Jet Efficiency and Simulations of Black Hole Magnetospheres
Creators: name: Punsly, Brian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This article reports on a growing body of observational evidence that many powerful lobe dominated (FR II) radio sources likely have jets with high efficiency. This study extends the maximum efficiency line (jet power $\approx$ 25 times the thermal luminosity) defined in Fernandes et (2010) so as to span four decades of jet power. The fact that this line extends over the full span of FR II radio power is a strong indication that this is a fundamental property of jet production that is independent of accretion power. This is a valuable constraint for theorists. For example, the currently popular "no net flux" numerical models of black hole accretion produce jets that are 2 to 3 orders of magnitude too weak to be consistent with sources near maximum efficiency.
description: To appear in ApJ Letters
Tectonometamorphic evolution of the Hindu Kush, North West Pakistan
Creators: name: Fasial, Shah
Publisher: name: University of British Columbia
Year: 2015

description: New U-(Th)/Pb geochronology, geochemical analyses of plutonic bodies and thermochronologic constraints from the Hindu Kush range, NW Pakistan, provide insight on the crustal growth and tectonic evolution of the southern Eurasian margin and Himalaya-Karakoram-Tibet orogen. Monazite and zircon data record a protracted deformational, metamorphic, and magmatic history that spans the Cambrian to the Neogene. The Cambrian-Ordovician Kafiristan pluton yields geochemical signatures consistent with extensional plutonism and rifting of the Hindu Kush and Karakoram terranes, which now comprise the field area, away from Gondwana. The Hindu Kush accreted to the southern Eurasian margin during the Late Triassic followed closely by the Karakoram terrane in the Early Jurassic. An Andean-style subduction margin was established at the southern Eurasian boundary in the Cretaceous, which lead to the intrusion of the Tirich Mir and Buni-Zom plutons. The attendant volcanic arc magmatism ended with the docking of the Kohistan island arc and the emplacement of the Kohistan-Ladakh batholith during the Late Cretaceous. Eocene ⁴⁰Ar/³⁹Ar muscovite ages in close proximity to the Tirich Mir fault indicate reactivation of the structure during the onset of continent-continent collision. This collision evolved into widespread crustal thickening, high-temperature metamorphism, and associated anatexis in the late Oligocene and early Miocene culminating locally with the emplacement of the Garam Chasma pluton. Thermochronologic data from near the pluton indicate immediate cooling after crystallization, followed by uplift and exhumation during the Neogene. Moreover, a young (1.4 ± 0.5 Ma) apatite fission track date from the Tirich Mir pluton is consistent with active exhumation and uplift of the 7700+ m Tirich Mir peak. This study and the data presented herein provide important new constraints on the nature and timing of tectonic events along the developing south Eurasian margin before and after the continued India-Asia collision.
Unjamming dynamics: the micromechanics of a seismic fault model
Creators: name: Ciamarra, M. Pica
name: Lippiello, E.
name: Godano, C.
name: de Arcangelis, L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The unjamming transition of granular systems is investigated in a seismic fault model via three dimensional Molecular Dynamics simulations. A two--time force--force correlation function, and a susceptibility related to the system response to pressure changes, allow to characterize the stick--slip dynamics, consisting in large slips and microslips leading to creep motion. The correlation function unveils the micromechanical changes occurring both during microslips and slips. The susceptibility encodes the magnitude of the incoming microslip.
description: See http://prl.aps.org/supplemental/PRL/v104/i23/e238001 for related animations
From SICs and MUBs to Eddington
Creators: name: Bengtsson, Ingemar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This is a survey of some very old knowledge about Mutually Unbiased Bases (MUB) and Symmetric Informationally Complete POVMs (SIC). In prime dimensions the former are closely tied to an elliptic normal curve symmetric under the Heisenberg group, while the latter are believed to be orbits under the Heisenberg group in all dimensions. In dimensions 3 and 4 the SICs are understandable in terms of elliptic curves, but a general statement escapes us. The geometry of the SICs in 3 and 4 dimensions is discussed in some detail.
description: 12 pages; from the Festschrift for Tony Sudbery
Facies-related diagenesis of Jurassic sandstones, central Junggar Basin, NW China: Implications for reservoir quality evolution
Creators: name: Zhang, Penghui
name: Lee, Yong Il
Publisher: name: Geological Society of London
Year: 2023
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary Table 1. Petrographic, porosity and permeability data as well as depositional facies of the Lower Jurassic sandstones, central Junggar Basin.
Two-component mixture of charged particles confined in a channel: melting
Creators: name: Ferreira, W. P.
name: Farias, G. A.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The melting of a binary system of charged particles confined in a {\it quasi}-one-dimensional parabolic channel is studied through Monte Carlo simulations. At zero temperature the particles are ordered in parallel chains. The melting is anisotropic and different melting temperatures are obtained according to the spatial direction, and the different types of particles present in the system. Melting is very different for the single-, two- and four-chain configurations. A temperature induced structural phase transition is found between two different four chain ordered states which is absent in the mono-disperse system. In the mixed regime, where the two types of particles are only slightly different, melting is almost isotropic and a thermally induced homogeneous distribution of the distinct types of charges is observed.
description: To appear in Journal of Physics: condensed matter ; (13 pages, 12 figures)
การออกแบบตัวควบคุมพีไอดีอย่างเหมาะสมสำหรับระบบควบคุมความเร็วของมอเตอร์ไฟฟ้ากระแสตรงแบบไร้แปรงถ่านกับการหาค่าเหมาะที่สุดแบบมีเงื่อนไขในการเฝ้าติดตามอินพุตและการคุมค่าโหลดด้วยการค้นหาแบบนกกาเหว่า
Creators: name: ดนุพล คำปัญญา
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลสุวรรณภูมิ
Year: 2018
Subjects: ตัวควบคุมพีไอดี
มอเตอร์ไฟฟ้ากระแสตรงแบบไร้แปรงถ่าน
การค้นหาแบบนกกาเหว่า
อภิศึกษาสำนึก

description: วารสารวิชาการและวิจัย มทร.พระนคร สาขาวิทยาศาสตร์และเทคโนโลยี, 12, 2, 123-137
การใช้ประโยชน์จากน้ำแช่เมล็ดถั่วดำแห้งในกระบวนการย้อมสีสิ่งทอ
Creators: name: กาญจนา ลือพงษ์
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2018
Subjects: น้ำแช่ถั่วดำ
สารพฤกษเคมี
การย้อมสีบนผ้าไหม
การป้องกันรังสียูวี
ความคงทนของสี

description: วารสารวิชาการและวิจัย มทร.พระนคร สาขาวิทยาศาสตร์และเทคโนโลยี, 12, 2, 138-147
ศึกษาหาเปอร์เซ็นต์การหดตัวของพลาสติก อะคริโลไนไตรล์บิวทาไดอีนสไตรีน โดยยึดตามมาตรฐาน ASTM D955 Standard Test Method
Creators: name: ประสงค์ ก้านแก้ว
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2018
Subjects: เปอร์เซ็นต์การหดตัวของพลาสติก
อะคริโลไนไตรล์บิวทาไดอีนสไตรีน

description: วารสารวิชาการและวิจัย มทร.พระนคร สาขาวิทยาศาสตร์และเทคโนโลยี, 12, 2, 148-157
Planetary Core Formation with Collisional Fragmentation and Atmosphere to Form Gas Giant Planets
Creators: name: Kobayashi, Hiroshi
name: Tanaka, Hidekazu
name: Krivov, Alexander V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Massive planetary cores ($\sim 10$ Earth masses) trigger rapid gas accretion to form gas giant planets \rev{such as} Jupiter and Saturn. We investigate the core growth and the possibilities for cores to reach such a critical core mass. At the late stage, planetary cores grow through collisions with small planetesimals. Collisional fragmentation of planetesimals, which is induced by gravitational interaction with planetary cores, reduces the amount of planetesimals surrounding them, and thus the final core masses. Starting from small planetesimals that the fragmentation rapidly removes, less massive cores are formed. However, planetary cores acquire atmospheres that enlarge their collisional cross section before rapid gas accretion. Once planetary cores exceed about Mars mass, atmospheres significantly accelerate the growth of cores. We show that, taking into account the effects of fragmentation and atmosphere, initially large planetesimals enable formation of sufficiently massive cores. On the other hand, because the growth of cores is slow for large planetesimals, a massive disk is necessary for cores to grow enough within a disk lifetime. If the disk with 100\,km-sized initial planetesimals is 10 times as massive as the minimum mass solar nebula, planetary cores can exceed 10 Earth masses in the Jovian planet region ($>5\,$AU).
description: accepted for publication in ApJ
CCD photometric study of the W UMa-type binary II CMa in the field of Berkeley 33
Creators: name: Liang, Liu
name: Shengbang, Qian
name: Liying, Zhu
name: Jiajia, He
name: Jinzhao, Yuan
name: Zhibin, Dai
name: Wenping, Liao
name: Jia, Zhao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The CCD photometric data of the EW-type binary, II CMa, which is a contact star in the field of the middle-aged open cluster Berkeley 33, are presented. The complete R light curve was obtained. In the present paper, using the five CCD epochs of light minimum (three of them are calculated from Mazur et al. (1993)'s data and two from our new data), the orbital period P was revised to 0.22919704 days. The complete R light curve was analyzed by using the 2003 version of W-D (Wilson-Devinney) program. It is found that this is a contact system with a mass ratio $q=0.9$ and a contact factor $f=4.1%$. The high mass ratio ($q=0.9$) and the low contact factor ($f=4.1%$) indicate that the system just evolved into the marginal contact stage.
Expanding the Role of Data Repositories to make Science more Open
Creators: name: Gries, Corinna
name: Servilla, Mark
name: Vanderbilt, Kristin
name: Grossman Clarke, Susanne
name: Smith, Colin
name: O'Brien, Margaret
Publisher: name: Zenodo
Year: 2020
Subjects: data repository
open data
open science
Environmental Data Initiative
Limnology

description: The role of data repositories in Transparent Science: sufficiently detailed description of a scientific process to enable meaningful public scrutiny and examination Reproducible Science: repeatedly generate or observe outcomes consistent with scientific understanding Open Science: free and unfettered access to all stages of the scientific endeavor
description: funding: NSF DBI-1931143 and NSF DBI-1931174
Meson production in high-energy electron-nucleus scattering
Creators: name: Fäldt, Göran
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Experimental studies of meson production through two-photon fusion in inelastic electron-nucleus scattering is now under way. A high-energy photon radiated by the incident electron is fused with a soft photon radiated by the nucleus. The process takes place in the small-angle-Coulomb region of nuclear scattering. We expound the theory for this production process as well as its interference with coherent-radiative-meson production. In particular, we investigate the distortion of the electron wave function due to multiple-Coulomb scattering.
description: 31 pages, 9 figures
title: Cavalry
title: Cavalry
Creators: name: Kennedy, Douglas
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Weltkrieg [1914-1918]
subject: Kavallerie
subject: World War, 1914-1918
subject: Cavalry

description: By the beginning of the 20th century, field armies had integrated the combat arm of cavalry with the infantry and artillery branches for over a century. However, its involvement in battle continued to experience changes driven by the increasing intensity of firepower on the modern battlefield. World War I was the final crucible that demonstrated the limited relevance of horse-mounted cavalry on the industrialized battlefield.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
title: Beatty, David Beatty, Earl
title: Beatty, David Beatty, Earl
Creators: name: Steele, Chuck
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Beatty, David
subject: Beatty, David Beatty, Earl, 1871-1936

description: David Beatty was a British admiral. He is best known for leading Britain’s Battlecruiser Fleet in its disastrous rendezvous with Germany’s High Seas Fleet at the Battle of Jutland. An audacious officer whose actions at Jutland remain controversial, Beatty nonetheless crafted a highly successful career in Britain’s Royal Navy.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
First R and I Lights and Their Photometric Analyses of GSC 02393-00680
Creators: name: Liang, Liu
name: Sheng-Bang, Qian
name: Jia-Jia, He
name: Lin-Jia, Li
name: Wen-Ping, Liao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We obtained complete $R$ and $I$ light curves of GSC 02393-00680 in 2008 and analyzed them with the 2003 version of the W-D code. It is shown that GSC 02393-00680 is a W-type shallow contact binary system with a high mass ratio $q=1.600$ and a degree of contact factor $f=5.0%(\pm1.3%)$. It will be a good example to check up on the TRO theory. A period investigation based on all available data suggests that the system has a small-amplitude period oscillation ($A_3=0.^{d}0030$; $T_3=1.92$years). This may indicate it has a moderate mass close third body, which is similar to XY Leo.
title: London, Treaty of (1915)
title: London, Treaty of (1915)
Creators: name: Marcuzzi, Stefano
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Agreement between France, Russia, Britain and Italy
subject: World War, 1914-1918--Territorial questions--Italy

description: The Treaty of London was a secret agreement signed by Italy, Great Britain, France, and Russia on 26 April 1915, bringing Italy into the First World War on the Entente side. It therefore had a crucial impact on the conflict. Its content, however, included territorial promises to Italy that would reveal serious inter-allied differences at the peace conference. The partial implementation of the Treaty of London had massive consequences in post-war Italy and beyond.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
title: Enfant, handicap et participation
Creators: name: V.Gautheron
name: H. Bessaguet
name: B. Bayle
name: B. Zagorda
name: E. Ojardias
Publisher: name: Société Française d’Orthopédie Pédiatrique (SOFOP)
Year: 2023
Subjects: subject: enfant
subject: handicap
subject: participation

description: Le dictionnaire Robert propose deux définitions du mot handicap. La première correspond à une « course de chevaux, ou épreuve sportive où l'on impose aux meilleurs concurrents certains désavantages au départ afin d'équilibrer les chances de succès » et la seconde fait référence à la « limitation d'activité ou restriction de la participation à la vie en société subie par une personne en raison d'une altération d'une fonction ou d'un trouble de santé invalidant (ex. personne en situation de handicap)
We begin to write : creating and using the first Nabit orthography
Creators: name: Giffen, Robyn
Publisher: name: University of British Columbia
Year: 2016

description: This thesis examines the role of language ideologies and agency in the development of an orthography for the Nabit language. Based on fieldwork in the Nabdam District of Ghana, it specifically explores the role of community involvement in orthography development. Approximately 40,000 people speak the Nabit language in the Nabdam District in the Upper East Region of Ghana. Through the work of Project GROW, a non-profit organization led by Vida Yakong, a community-based research project began in order to develop an orthography for Nabit in 2011. After a multi-year collaborative research project, including the development of a Nabit Language Committee, community members finalized the Nabit alphabet in 2014 at an Alphabet Design Workshop. Developing an orthography is a complex process as there are multiple linguistic and non-linguistic factors which must be considered in the process including which languages and orthographies speakers are already familiar with, how similar or different speakers want the orthography to be from existing orthographies, and how the orthography is seen as representing the identity of the language community. This thesis considers the factors that influenced the development of the Nabit orthography by analyzing the language ideologies of Nabit speakers, which emerged in interviews and at an Alphabet Design Workshop. In particular, this research focuses on the ideologies of language and cultural endangerment, language “purity”, and how Nabit “should” be written. By examining these language ideologies and the role they had in the creation of the Nabit orthography, this thesis demonstrates that both researchers and community members need to consider non-linguistic factors as equally important and sometimes even more important, than linguistic factors in orthography development.
title: Governments, Parliaments and Parties (Ottoman Empire/Middle East)
title: Governments, Parliaments and Parties (Ottoman Empire/Middle East)
Creators: name: Ahmad, Feroz
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Osmanisches Reich / Parlament
subject: Turkey--Politics and government--1909-1918
subject: Constitutional history--Turkey

description: After the Committee of Union and Progress (CUP) seized power in January 1913, it established a single-party government that dominated parliament from the 1914 elections until the end of the war. The CUP was a party of leaders and factions and not a so-called “triumvirate.” It ruled collectively through bodies like the general assembly and the central committee. At its last congress in November 1918 the committee dissolved itself and seven of its leaders fled on a German U-boat.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
การวิเคราะห์หาปริมาณโปรตีน แร่ธาตุและวิตามินในข้าวพันธุ์พื้นเมืองของจังหวัดเลย
Creators: name: นภัสสร  วงเปรียว
Publisher: name: มหาวิทยาลัยราชภัฏเลย
Year: 2018
Subjects: ข้าวพันธุ์พื้นเมือง
แร่ธาตุ
โปรตีน
วิตามิน

description: วารสารวิชาการและวิจัย มทร.พระนคร สาขาวิทยาศาสตร์และเทคโนโลยี, 12, 2, 158-171
Coherent dynamics of macroscopic electronic order through a symmetry-breaking transition
Creators: name: Yusupov, R.
name: Mertelj, T.
name: Kabanov, V. V.
name: Brazovskii, S.
name: Kusar, P.
name: Chu, J. -H.
name: Fisher, I. R.
name: Mihailovic, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The temporal evolution of systems undergoing symmetry breaking phase transitions (SBTs) is of great fundamental interest not only in condensed matter physics, but extends from cosmology to brain function and finance \cite{topology,Kibble,Eltsov,Finance}. However, the study of such transitions is often hindered by the fact that they are difficult to repeat, or they occur very rapidly. Here we report for the first time on a high-time-resolution study of the evolution of both bosonic and fermionic excitations through a second order electronic charge-ordering SBT in a condensed matter system. Using a new three-pulse femtosecond spectroscopy technique, we periodically quench our model system into the high-symmetry state, detecting hitherto unrecorded coherent aperiodic undulations of the order parameter (OP), critical slowing down of the collective mode, and evolution of the particle-hole gap appearing through the Peierls-BCS mechanism as the system evolves through the transition. Numerical modeling based on Ginzburg-Landau theory is used to reproduce the observations without free parameters. The close analogy with other Higgs potentials in particle physics\cite{Higgs} gives new insight into hitherto unexplored dynamics of both single particle and collective excitations through a SBT. Of particular interest is the observation of spectro-temporal distortions caused by disturbances of the field arising from spontaneous annihilation of topological defects, similar to those discussed by the Kibble-Zurek cosmological model.
description: 4 figures
RISIS Research Seminar 10: Refugees access to higher ducation in Europe – Policy goals, data needs and some empirical results
Creators: name: Lambrechts, Agata
name: Kaiser, Frans
Publisher: name: Zenodo
Year: 2021
Subjects: RISIS2
Eter Dataset
RISIS Dataset
European Universities
Refugees
Indicators
Mobility

description: In view of the ongoing so-called ‘refugee crisis’, which began in late 2014, there is a growing potential demand for higher education (HE) opportunities amongst refugee communities in Europe and elsewhere. The EU acknowledges this need and supports the integration of people with refugee backgrounds into HE, including through funding of online linguistic support for new arrivals. Thus far, however, we know relatively little about the participation levels of students with refugee backgrounds in European universities. As noted in the recent Eurydice report, most countries of the Erasmus+ programme do not have specific policy approaches on this matter despite several systems referring to refugees and/or asylum seekers in national legislation. Furthermore, the report suggested that few countries still undertake systematic monitoring, confirming the low priority of this issue in the national HE systems. In the absence of top-down requirements to strategically plan for widening participation of those with refugee backgrounds and monitoring of the outcomes, it is suggested that data can be collected only at the university level. It is not without difficulties, and institutions need to consider both ethical and methodological issues. However, refugees and their educational needs will likely remain invisible if we do not get a clear picture of their (under)representation in European universities. The goal of the presentation will be, first, to discuss some potential indicators on refugees’ integration in higher education and to develop directions for a framework for data collection that could be connected with European-level higher education monitoring systems such as Eurydice, ETER and Multirank. Frans Kaiser, CHEPS, University of Twente, has been involved as discussant.
title: Empire
title: Empire
Creators: name: Manela, Erez
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Weltkrieg [1914-1918]
subject: Großmacht
subject: World War, 1914-1918
subject: Great powers

description: World War I was not simply a conflict among European states but a global war of empires. The fighting took place not only in Europe, but also in Africa, Asia, and across the Middle East, and it involved, as soldiers or laborers, millions of Africans and Asians. The postwar settlement, in turn, had vast implications for the world outside Europe, drawing borders and igniting movements that have defined the history of those regions ever since.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
ศึกษาตัวแปรที่มีผลต่อท่อความร้อนที่ติดตั้งวัสดุพรุนชนิดตาข่าย
Creators: name: สถิตพงศ์ เสงี่ยมศักดิ์
Publisher: name: มหาวิทยาลัยกาฬสินธุ์
Year: 2018
Subjects: ท่อความร้อน
วัสดุพรุนชนิดตาข่าย
การถ่ายโอนความร้อน

description: วารสารวิชาการและวิจัย มทร.พระนคร สาขาวิทยาศาสตร์และเทคโนโลยี, 12, 2, 172-183
title: Marne, Battles of the
title: Marne, Battles of the
Creators: name: Le Gall, Erwan
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Weltkrieg [1914-1918]
subject: Marneschlacht [1914]
subject: Marneschlacht [1918]
subject: Marne, 1st Battle of the, France, 1914
subject: Marne, 2nd Battle of the, France, 1918

description: The battles of the Marne were two battles during the First World War. The first took place in September 1914, and the second in the summer of 1918. Both battles were key moments in the First World War, which resulted in German defeats. But these battles also illustrate the evolution to modern warfare, i.e. the movement towards an ever more mechanical and industrial fire. This entry also addresses the shifted memories of the battles.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War