cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Temperature Dependence of the Intrinsic Anomalous Hall Effect in Nickel
Creators: name: Ye, Li
name: Tian, Yuan
name: Xiao, Di
name: Jin, Xiaofeng
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the unusual temperature dependence of the anomalous Hall effect in Ni. By varying the thickness of the MBE-grown Ni films, the longitudinal resistivity is uniquely tuned without resorting to doping impurities; consequently, the intrinsic and extrinsic contributions are cleanly separated out. In stark contrast to other ferromagnets such as Fe, the intrinsic contribution in Ni is found to be strongly temperature dependent with a value of 1100 (ohm*cm)^(-1) at low temperatures and 500 (ohm*cm)^(-1) at high temperatures. This pronounced temperature dependence, a cause of long-standing confusion concerning the physical origin of the AHE, is likely due to the small energy level splitting caused by the spin orbit coupling close to the Fermi surface. Our result helps pave the way for the general claim of the Berry-phase interpretation for the AHE.
description: 4 pages, 4 figures
Indigenous Education Models for Contemporary Practice: In Our Mother's Voice by Maenette Каре 'ahiokalani Padeken Ah Nee-Benham and Joanne Elizabeth Cooper (Eds.)
Creators: name: Orr, Jeff
Publisher: name: Alberta Journal of Educational Research
Year: 2001

description: Alberta Journal of Educational Research, Vol. 47 No. 2 (2001): Summer 2001
The dynamically induced Fermi arcs and Fermi pockets in two dimensions: a model for underdoped cuprates
Creators: name: Choi, Han-Yong
name: Hong, Seung Hwan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the effects of the dynamic bosonic fluctuations on the Fermi surface reconstruction in two dimensions as a model for the underdoped cuprates. At energies larger than the boson energy $ω_b$, the dynamic nature of the fluctuations is not important and the quasi-particle dispersion exhibits the shadow feature like that induced by a static long range order. At lower energies, however, the shadow feature is pushed away by the finite $ω_b$. The detailed low energy features are determined by the bare dispersion and the coupling of quasi-particles to the dynamic fluctuations. We present how these factors reconstruct the Fermi surface to produce the Fermi arcs or the Fermi pockets, or their coexistence. Our principal result is that the dynamic nature of the fluctuations, without invoking a yet-to-be-established translational symmetry breaking hidden order, can produce the Fermi pocket centered away from the $(π/2,π/2)$ towards the zone center which may coexist with the Fermi arcs. This is discussed in comparison with the experimental observations.
description: Some comments and references were added and typos were corrected. The published version. 9 pages
พัฒนาการตรวจหาการปนเปื้อน Porcine DNA ในเจลาตินและผลิตภัณฑ์อาหารฮาลาลด้วยวิธี Real-time PCR โดยใช้ Taq Man probe
Creators: name: พจชนาถ พัทบุรี
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: อาหารฮาลาล
DNA ของสุกร
Real-time PCR

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 63-73
ผลของ MeJA และ SA ต่อปริมาณสารประกอบฟีนอลิคทั้งหมดฤทธิ์ต้านอนุมูลอิสระ และฤทธิ์ยับยั้งเอนไซม์ไทโรซิเนสของยอดมหาหงส์ในสภาพปลอดเชื้อ
Creators: name: เยาวพา จิระเกียรติกุล
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: มหาหงส์
สารต้านอนุมูลอิสระ
ฤทธิ์ยับยั้งเอนไซม์ไทโรซิเนส
Salicylic acid
สารกระตุ้น

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 74-84
INVESTIGATION OF THERMAL, STRUCTURAL, OPTICAL AND  MAGNETIC PROPERTIES OF ZnFe2O4 and Zn0.75Cu0.25Al0.1Fe1.9O4  MAGNETIC MATERIALS
Creators: name: BILILIGN MELESSE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In the present study,  ZnFe2O4  and  Zn0.75Cu0.25Al0.1Fe1.9O4  ferrite nanoparticles were
synthesized by Solid state reaction method. The thermal, structural, optical and magnetic
properties of these ferrites were investigated. For this purpose, thermal Analysis, powder
x-ray diffraction (XRD),  Fourier  transform infrared (FT-IR) spectroscopy, Ultraviolet
visible (UV-vis) spectroscopy and electron spin resonance (ESR) spectroscopy
characterization techniques were utilized.
The TGA/DTA analysis measurement used for measuring changes in the mass of a sample
as a function of temperature or time and measurement of the difference in temperature. The
investigation  identifies that 11.48%  and 12.077% total weight loss of  ZnFe2O4  and
Zn0.75Cu0.25Al0.1Fe1.9O4  compounds respectively were detected when the compound is
heated from room temperature to 1000℃.  The XRD analysis reveals that  both the
synthesized samples possessed cubic spinel structure with Fd-3m space groups. Different
structural parameters  were investigated from the obtained XRD analysis.  The average
crystallite sizes  were  found  to be  30.07, 35.40 and  36.85  nm, for  ZnFe2O4  and
Zn0.75Cu0.25Al0.1Fe1.9O4, respectively.  This  confirms the nano crystalline nature of  both
synthesized materials.  From FT-IR spectroscopy study, two strong absorbation spectral
bands of  ZnFe2O4  were  578.5cm-1
  and 389.9cm-1
  and also two strong bands of
Zn0.75Cu0.25Al0.1Fe1.9O4  were  584.9cm-1
  and 396cm-1
which  are responsible for the
formation of the synthesized materials, were identified. The optical bandgap was found to
be 2.785 and 2.773 eV for ZnFe2O4 and Zn0.75Cu0.25Al0.1Fe1.9O4 ferrite, respectively. From
the ESR spectroscopic  investigation,  the ESR spectrum of  ZnFe2O4    and
Zn0.75Cu0.25Al0.1Fe1.9O4 ferrite at room temperature shows wide line width ∆HPP133mT and
3.68 effective g value  and wide line width ∆HPP177mT and 3.37 g-values were identified
respectively  , which indicates that dipole interactions are dominant in both synthesized
ferrite particles.
การเปลี่ยนแปลงทางชีวเคมีระหว่างการเสื่อมสภาพของใบเฟินนาคราชหลังเก็บเกี่ยว
Creators: name: มณทินี ธีรารักษ์
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: เฟินนาคราช
การเสื่อมสภาพ
คลอโรฟีลล์
ไฮโดรเจนเปอร์ออกไซด์
มาลอนไดอัลดีไฮด์

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 85-96
"Back to Basics": Rethinking What is Basic to Education Through an Interpretive Study of the Work of Teachers and Students in Elementary School Classrooms
Creators: name: Jardine, David W.
name: Clifford, Patricia
name: Friesen, Sharon
name: LaGrange, Annette
Publisher: name: Alberta Journal of Educational Research
Year: 2001

description: Alberta Journal of Educational Research, Vol. 47 No. 2 (2001): Summer 2001
ผลของราอาร์บัสคูลาร์ไมคอร์ไรซาต่อการเจริญเติบโตของข้าวโพดเลี้ยงสัตว์ที่ปลูกในดินหลังการขังน้ำ
Creators: name: พักตร์เพ็ญ ภูมิพันธ์
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: ราอาร์บัสคูลาร์ไมคอร์ไรซา
ดินขังน้ำ
ข้าวโพดเลี้ยงสัตว์

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 109-122
Projections of Discovery Potentials from Expected Background
Creators: name: Singh, M. K.
name: Li, H. B.
name: Wong, H. T.
name: Sharma, V.
name: Singh, L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Background channels with their expected strength and uncertainty levels are usually known in searches of novel phenomena prior to the experiments are conducted at their design stage. We quantitatively study the projected sensitivities in terms of discovery potentials. These are essential for the optimizations of the experimental specifications as well as of the cost-effectiveness in various investment. Sensitivities in counting analysis are derived with complete Poisson statistics and its continuous approximation, and are compared with those using maximum likelihood analysis in which additional measurables are included as signatures. The roles and effects due to uncertainties in the background estimates are studied. Two expected features to establish positive effects are verified and quantified: (i) In counting-only experiments, the required signal strength can be derived with complete Poisson analysis, and the continuous approximation would underestimate the results. (ii) Incorporating continuous variables as additional constraints would reduce the required signal strength relative to that of counting-only analysis. The formulations are applied to the case on the experimental searches of neutrinoless double beta decay in which both ambient and two-neutrino background are considered.
description: 14 pages, 11 figures ; V2 Published Version
ผลของส่วนผสมและการใช้เทคโนโลยีความดันสูงต่อคุณภาพของซอสหอยนางรม
Creators: name: บุศราภา ลีละวัฒน์
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: ซอสหอยนางรม
เทคโนโลยีความดันสูง
สมบัติทางกระแสวิทยา
พาสเจอร์ไรส์
อะไมเลส

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 123-135
Metallicity and age effects on lithium depletion in solar analogues
Creators: name: Martos, Giulia
name: Meléndez, Jorge
name: Rathsam, Anne
name: Silva, Gabriela Carvalho
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The lithium present in the photospheres of solar-type stars is transported to the inner parts by convection, reaching regions even somewhat below the convection zone, by non-standard transport mechanisms. In stars with deeper convective zones, this element can reach regions with temperatures sufficient enough to be destroyed, implying in a lower Li content. More metallic stars show a deepening of their convective zones, so they could deplete more Li in comparison with stars of lower metallicity. In order to verify this effect and its amplitude, we selected stars with ~1 M$_{\odot}$ and metallicities within a factor of two relative to the Sun. We studied a sample of 41 metal-rich and -poor solar analogues, and carried out a joint analysis with a sample of 77 solar twins from our previous work, resulting in a total sample of 118 stars covering the metallicity range -0.3 $\leq$ [Fe/H] $\leq$ +0.3 dex. We employed high-resolution (R = 115 000) and high-signal-to-noise ratio (S/N = 400-1000) HARPS spectra and determined the atmospheric parameters using a line-by-line differential analysis and the Li abundance through spectral synthesis. The ages and masses of the whole sample were improved by refining the isochronal method. We also investigated the impact of planets on Li. We found robust anticorrelations between Li abundance and both metallicity and age, with a significance above 10$σ$ in both cases. Our results agree qualitatively with theoretical predictions and are useful to constrain non-standard models of Li depletion, and to better understand transport and mixing mechanisms inside stars.
description: 10 pages, 5 figures, 2 tables
การกระจายของไส้เดือนทะเล Ophelina acuminata Oersted, 1843(Polychaeta: Opheliidae) บริเวณเขตน้ำขึ้นน้ำลงชายฝั่งทะเลศรีราชา จังหวัดชลบุรี
Creators: name: ณัฐกิตทิ์ โตอ่อน
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: ไส้เดือนทะเล Ophelina acuminata
บริเวณเขตน้ำขึ้นน้ำลง
ชายฝั่งทะเลอำเภอศรีราชา
จังหวัดชลบุรี

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 136-148
Adaptive multigrid algorithm for the lattice Wilson-Dirac operator
Creators: name: Babich, R.
name: Brannick, J.
name: Brower, R. C.
name: Clark, M. A.
name: Manteuffel, T. A.
name: McCormick, S. F.
name: Osborn, J. C.
name: Rebbi, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present an adaptive multigrid solver for application to the non-Hermitian Wilson-Dirac system of QCD. The key components leading to the success of our proposed algorithm are the use of an adaptive projection onto coarse grids that preserves the near null space of the system matrix together with a simplified form of the correction based on the so-called gamma_5-Hermitian symmetry of the Dirac operator. We demonstrate that the algorithm nearly eliminates critical slowing down in the chiral limit and that it has weak dependence on the lattice volume.
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð°ÑÐ¸ÑÐ¼ÐµÑÐ¸ÐºÐ¸ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ Ð´Ð¸ÑÐºÑÐµÑÐ½ÑÑ Ð³ÑÑÐ¿Ð¿, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ñ Ð¿Ð¾Ð»Ð¸Ð½Ð¾Ð¼Ð°Ð¼ Ð·Ð°Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÑÐµÐ¿ÐµÐ½Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: The study of arithmetic of finite discrete groups corresponding to polynomials of a given degree
Creators: name: ÐÐ°Ð³Ð¾Ð¼ÐµÐ´Ð¾Ð², ÐÐ»Ð¸
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: ÐºÐ¾Ð½ÐµÑÐ½Ð¾Ðµ Ð¿Ð¾Ð»Ðµ
Ð¿Ð¾Ð»Ðµ ÐÐ°Ð»ÑÐ°
Ð¼Ð½Ð¾Ð³Ð¾ÑÐ»ÐµÐ½
Ð·Ð°Ð¼ÐºÐ½ÑÑÐ¾ÑÑÑ
finite field
Galois field
polynomials
closure

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Â«ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð°ÑÐ¸ÑÐ¼ÐµÑÐ¸ÐºÐ¸ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ Ð´Ð¸ÑÐºÑÐµÑÐ½ÑÑ Ð³ÑÑÐ¿Ð¿, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ñ Ð¿Ð¾Ð»Ð¸Ð½Ð¾Ð¼Ð°Ð¼ Ð·Ð°Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÑÐµÐ¿ÐµÐ½Ð¸Â». Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð°ÑÐ¸ÑÐ¼ÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð¸ Ð² ÐºÐ¾Ð½ÐµÑÐ½ÑÑ Ð¿Ð¾Ð»ÑÑ. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð° Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð° Ð´Ð»Ñ ÑÐ°ÑÑÐµÑÐ° Ð½ÐµÐ¿ÑÐ¸Ð²Ð¾Ð´Ð¸Ð¼ÑÑ Ð¿Ð¾Ð»Ð¸Ð½Ð¾Ð¼Ð¾Ð² Ð·Ð°Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÑÐµÐ¿ÐµÐ½Ð¸. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÑÐ¸Ñ Ð¿Ð¾Ð»Ð¸Ð½Ð¾Ð¼Ð¾Ð² ÑÑÑÐ¾ÑÑÑÑ Ð¿Ð¾Ð»Ñ ÐÐ°Ð»ÑÐ°, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÐµÐ½Ð½Ð¾ ÑÑÐµÐ¿ÐµÐ½Ð¸ Ð¼Ð½Ð¾Ð³Ð¾ÑÐ»ÐµÐ½Ð° Ð¸ ÑÑÑÐ¾ÑÑÑÑ ÑÐ°Ð±Ð»Ð¸ÑÑ ÑÐ¼Ð½Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¸ ÑÑÐµÐ¿ÐµÐ½ÐµÐ¹. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸ÑÑÑ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ²Ð¾Ð¹ÑÑÐ² ÐºÐ¾Ð½ÐµÑÐ½ÑÑ Ð³ÑÑÐ¿Ð¿ Ð¸ Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð½Ð° Ð·Ð°Ð¼ÐºÐ½ÑÑÐ¾ÑÑÑ.
description: The topic of the final qualifying work is "The study of arithmetic of finite discrete groups corresponding to polynomials of a given degree". In this paper, the basic arithmetic operations in finite fields are considered. The paper presents a program for calculating irreducible polynomials of a given degree. On the basis of these polynomials, Galois fields are constructed, according to the degree of the polynomial, and multiplication tables and degrees are constructed. Based on the results obtained, the properties of finite groups are analyzed and their study for closure is carried out.
A THESIS SUBMITTIED TO THE DEPARTMENT OF PHYSICS SCHOOL  OF GRADUATE STUDIES, ARBA MINCH UNIVERSITY IN PARTIAL  FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF  MASTERS OF SCIENCE IN PHYSICS
Creators: name: ADANE BOGALE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Synthesis  and characterization  of nanoparticles, which is less than 100 nm  ferrite  materials
have gained much attention in recent years because of their unique properties and potential
for  many  applications  such  as  magnetic  storage  systems,  magnetic  resonance  imaging,
spintronics  etc.  Cu substitute Co
0.7-x
Ni0.3
Cux
Fe2O4
for  x =  0.05 and 0.1  ferrite materials  are
successfully  synthesized  by  sol-gel  method  processing  at  pH  value  of  7.  The  synthesized
ferrites  are  annealed  at  a  temperature  of  800  °C  for  8  hrs.  The  structure,  chemical
composition, electrical and dielectric properties of both ferrites are characterized by the x-ray
powder diffraction (XRD),  energy dispersive X-ray spectroscopy  (EDX),  Fourier transform
infrared (FT-IR) spectroscopy and complex impedance spectroscopy (CIS).
XRD analysis reveals that both ferrites  show cubic spinel structure with space group Fd3m.
The lattice parameter decreases from 8.447Å to 8.441 Å with increasing Cu content from x =
0.05 to x = 0.1.  The average crystallite sizes of the synthesized samples  are  determined by
using the X-ray analysis broadening of the (311) diffraction peak  by using Debye-Scherrer’s
formula and it is found in the values of 72 and 70.90 nm. The elemental analysis as obtained
from the EDX measurement  indicates the quantitative presence of Co, Ni, Cu, Fe and O in
the synthesized samples. It also confirms the absence of impurities in Co
0.65
Ni0.3
Cu0.05
Fe2O4
and Co
0.6
Ni0.3
Cu0.1
Fe2O4
ferrite samples.  The FT-IR  spectra show  the tetrahedral stretching
vibration  modes  of  Co0.65
Ni0.3
Cu0.05
Fe2O4
and  Co0.6
Ni0.3
Cu0.1
Fe2O4
ferries.  The  two  strong
frequency  bands  appeared  at  wavenumber  569.02  and  572.90  cm
−1
are  responsible  for  the
formation of Co
0.65
Ni0.3
Cu0.05
Fe2O4
and Co
0.6Ni0.3
Cu0.1
Fe2O4
ferrites, respectively.
From the electrical and dielectric properties studies, it is found that the value of the dielectric
constant  as well as the real impendence   of both samples decreases exponentially with an
increasing frequency due to interfacial polarization. For the case of conductivity, the effect of
the  variation  of  frequency  on  the  electrical  conductivity  of  both  synthesized  sample  are
identified.  Their  conduction  mechanism  is  explained  on  the  basis  of  hopping  of  charge
carriers between Fe
2+
- Fe
3+
ions on octahedral sites.
EFFECT OF ZINC AND COPPER SUBSTIUTION ON  STRUCTURAL, OPTICAL AND MAGNETIC PROPERTIES OF  COBALT NANOFERRITES (CoFe2O4)
Creators: name: FIKADU LEMU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In the present study, CoFe2O4 and Co.8Z0.1Cu0.1Fe2O4 ferrites were synthesized by sol-gel
combustion method using oxalic acid as a chelating agent. The thermal, structural optical
and  the magnetic properties of these ferrites were investigated. For  this investigation,
thermogravimetric analysis (TGA), differential  thermal analysis (DTA), x-ray powder
diffraction (XRD), Ultraviolet visible (UV-vis) spectroscopy and electron spin resonance
(ESR) spectroscopy characterization techniques were employed. The XRD analysis
revealed the formation of a single phased cubic spinel ferrites. From XRD results,
different structural parameters, such as lattice parameter, unite cell volume, crystal size,
etc. of both ferrites were also suggested. The average crystallite sizes were found to be
40.673 and 43.3856  nm for CoFe2O4  and Co.8Z0.1Cu0.1Fe2O4  ferrites, respectively. This
confirmed the nanocrystalline nature of all the synthesized ferrites. The optical band gap
both     ferrites were found to be 2.73ev and 2.76 eV for CoFe2O4 and Co.8Z0.1Cu0.1Fe2O4
ferrites, respectively. The value of Lande's g-factor, resonance field and peak to peak line
width of both ferrites were determined from ESR spectroscopy study. From  the g-factor
values, it was suggested that the superexchange interaction in both ferrites arising from
the cation redistribution in tetrahedral (A) and octahedral (B) sites.
ดีออกซีนิวาลินอล
Creators: name: เสาวลักษณ์ อดุลพัชราภรณ์
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: สารพิษจากรา
ดีออกซีนิวาลินอล
วิธีลดการปนเปื้อน
กฎหมายการปนเปื้อนของสารพิษในอาหาร

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 149-162
INVESTIGATION OF STRUCTURAL, DIELECTRIC AND  LECTRICAL PROPERTIES OF COPPER AND MAGNESIUM SUBSTITUTED ZINC FERRITE MATERIAL
Creators: name: KEDIR SEID
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Magnetic spinel ferrites are important materials owing to their outstanding electrical and
magnetic properties. Their distinctive qualities such as high electrical resistivity, high
permeability and negligible eddy current losses for high-frequency electromagnetic wave
propagation make them suitable for many technological applications. In this study,
ZnFe2O4 and Zn0.9Cu0.05Mg0.05Fe2O4  nanoferrite materials were synthesized by sol-gel
combustion method. The effect of  Cu2+and Mg2+  for Zn2+
substitution on  thermal
structural, optical, electrical and dielectric properties of ZnFe2O4 were investigated using
thermogravimetric  analysis (TGA), differential thermal analysis (DTA),  x-ray powder
diffraction (XRD),Ultra violet visible (UV-Vis)  spectroscopy, Fourier-transform infrared
(FT-IR) spectroscopy and Impedance spectroscopy (IS).
From TGA/DTA analysis, compound formation, temperatures as well as the weight loss
regions were identified.  The XRD results confirmed  that all XRD peaks appeared from
both ferrites were very sharp and well-defined, which indicates a high crystallinity of both
compounds. The average crystal sizes were found to be 48.31nm and 48.65 nm  for
ZnFe2O4 and Zn0.9Cu0.05Mg0.05Fe2O4, respectively. This confirmed that the substitution
of Cu and Mg cations into ZnFe2O4 causes an increase in crystal size. In FT-IR study, two
strong absorption bands between metal-oxygen ions were identified in both compounds.
These  absorption bands revealed the formation of the cubic spinel structure, which is in
agreement with XRD results of the compounds. The optical band gap values were found to
be 2.78ev  and  2.7eV for ZnFe2O4 and Zn0.9Cu0.05Mg0.05Fe2O4ferrites, respectively. At
room temperature,  the complex-plane impedance analysis and the effect of frequency on
the  impedance and dielectric properties were also investigated in this study. The real and
imaginary impendence  for both compounds  were found to decrease with increase in
frequency. It was also found that the dielectric constant decreases continuously with
increasing frequency and becomes constant at higher frequency regions, which indicates
that the major contribution to the polarization comes from orientation polarization.
ESTIMATION OF CATION DISTRIBUTION, OPTICAL AND  LECTRICAL PROPERTIES OF NiFe2O4 AND Ni0.875 Mg0.075Cu0.05Fe2O4   FERRITE  MATERIALS
Creators: name: GADISSA  ALEMU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In the present study,  NiFe2O4  and Ni0.875Mg0.075Cu0.05Fe2O4  ferrite  materials were
successfully synthesized by solid state reaction method.  The thermal property,  structure,
electrical and dielectric properties of both ferrites were investigated by Thermogravimetric
analysis (TGA),  Differential thermal analysis (DTA),  X-ray powder diffraction (XRD),
Ultraviolet visible (UV-vis) spectroscopy  and  Impedance  spectroscopy (IS).  The XRD
analysis revealed that both the synthesized samples have cubic spinel structure with Fd3m
space groups. From XRD results, different structural parameters, such as  the cation
distribution,  the lattice parameters, crystal size, unite cell volume of  NiFe2O4  and
Ni0.875Mg0.075Cu0.05Fe2O4  ferrites were  also  estimated. The crystallite sizes of NiFe2O4  and
Ni0.875Mg0.075Cu0.05Fe2O4  sample were determined  from the maximum intensive  diffraction
peak of the (311) by using Debye-Scherrer’s  formula which  gave 22.16  nm and 24.82 nm
respectively. This  confirms the nano crystalline nature of both synthesized ferrites.  The
optical bandgap of both ferrites  was  also  calculated using UV-Vis  spectroscopy
measurements and it was  found  in the values of  2.73  eV  and  2.75  eV  for  NiFe2O4  and
Ni0.875Mg0.075Cu0.05Fe2O4  ferrites,  respectively.  From the electrical and dielectric properties
studies, it was found that the value of the dielectric constant
as well as the real impendence

  of both samples decrease exponentially with an increasing frequency indicating normal
Maxwell-Wagner type dielectric dispersion due to interfacial polarization.
title: ÐÐµÑÑÐ½Ð¾Ðµ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð² Ð³Ð¾ÑÐ¾Ð´Ð°Ñ ÑÐµÐ´ÐµÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Local government in cities of federal significance
Creators: name: ÐÐ±ÑÐµÐ²Ð°, ÐÐ°ÑÐ°Ð»Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: Ð¼ÐµÑÑÐ½Ð¾Ðµ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ
Ð¾ÑÐ³Ð°Ð½Ñ Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
Ð³Ð¾ÑÐ¾Ð´ ÑÐµÐ´ÐµÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ
ÑÑÐ±ÑÐµÐºÑÑ Ð Ð¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð¤ÐµÐ´ÐµÑÐ°ÑÐ¸Ð¸
Ð¼ÐµÐ¶Ð¼ÑÐ½Ð¸ÑÐ¸Ð¿Ð°Ð»ÑÐ½Ð¾Ðµ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÑÐµÑÑÐ²Ð¾
Ð¼ÑÐ½Ð¸ÑÐ¸Ð¿Ð°Ð»ÑÐ½ÑÐµ Ð²ÑÐ±Ð¾ÑÑ
local government
local governments
cities of federal significance
subjects of the Russian Federation
inter-municipal cooperation
municipal elections

description: ÐÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ (Ð´Ð¸Ð¿Ð»Ð¾Ð¼Ð½Ð°Ñ) ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² Ð³Ð¾ÑÐ¾Ð´Ð°Ñ ÑÐµÐ´ÐµÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ. Ð Ð°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÑÑÑÑ Ð¿ÑÐ°Ð²Ð¾Ð²ÑÐµ Ð¾ÑÐ½Ð¾Ð²Ñ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¾ÑÐ³Ð°Ð½Ð¾Ð² Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² ÐÐ¾ÑÐºÐ²Ðµ, Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ðµ Ð¸ Ð¡ÐµÐ²Ð°ÑÑÐ¾Ð¿Ð¾Ð»Ðµ. ÐÐ½Ð°Ð»Ð¸Ð·Ð¸ÑÑÑÑÑÑ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¼ÐµÑÐ¾Ð² Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ ÑÑÐ±ÑÐµÐºÑÐ¾Ð² Ð Ð¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð¤ÐµÐ´ÐµÑÐ°ÑÐ¸Ð¸. Ð¢Ð°ÐºÐ¶Ðµ ÑÐ´ÐµÐ»ÐµÐ½Ð¾ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ Ð¿ÑÐµÐ´ÑÑÐ¾ÑÑÐ¸Ð¼ Ð¼ÑÐ½Ð¸ÑÐ¸Ð¿Ð°Ð»ÑÐ½ÑÐ¼ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð°. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿Ð¾Ð´Ð²ÐµÑÐ³Ð»Ð¸ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½ÑÐµ Ð¿ÑÐ°Ð²Ð¾Ð²ÑÐµ Ð°ÐºÑÑ Ð Ð¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð¤ÐµÐ´ÐµÑÐ°ÑÐ¸Ð¸ Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐµÐ¹ ÑÑÐµÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ, Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½ÑÐµ Ð¿ÑÐ°Ð²Ð¾Ð²ÑÐµ Ð°ÐºÑÑ ÑÑÐ±ÑÐµÐºÑÐ¾Ð² Ð Ð¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð¤ÐµÐ´ÐµÑÐ°ÑÐ¸Ð¸, Ð² ÑÐ¾Ð¼ ÑÐ¸ÑÐ»Ðµ ÑÑÐ´ Ð¼ÑÐ½Ð¸ÑÐ¸Ð¿Ð°Ð»ÑÐ½ÑÑ Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½ÑÑ Ð¿ÑÐ°Ð²Ð¾Ð²ÑÑ Ð°ÐºÑÐ¾Ð² Ð¸ ÑÑÐ´ÐµÐ±Ð½Ð°Ñ Ð¿ÑÐ°ÐºÑÐ¸ÐºÐ°.
description: The graduation (diploma) work is devoted to the organization of local self-government in cities of federal significance. The legal frameworks for the activities of local governments in Moscow, St. Petersburg and Sevastopol are considered. The characteristics of the subjects of reference in the subjects of the Russian Federation are analyzed. Attention is also paid to the upcoming elections by definition of local deputies and the highest official of St. Petersburg. The study examined the regulatory legal acts of the Russian Federation in the relevant field of research, the regulatory legal acts of the constituent entities of the Russian Federation, as well as a number of municipal regulatory legal acts and judicial practice.
COMPARATIVE STUDY OF STRUCTURAL, OPTICAL AND  ELECTRICAL BEHAVIOR OF PURE AND NICKEL-COPPER  SUBSTITUTED CADMIUM NANO-FERRITE
Creators: name: TSEGAYE OLANA
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In recent years, the synthesis of Nano crystalline ferrite materials has the focus of the
intense fundamental  and applied research with special emphasis on their enhanced
electrical and magnetic properties that are different from those of ferrites in the form of
bulk size. Considering this, the Nano crystalline CdFe2O4  and Cd0.85Ni0.075Cu0.075Fe2O4
ferrites was synthesized by sol-gel method. The comparative study of both ferrites on
structural, optical and electrical behavior was investigated using thermogravimetric
analysis (TGA), differential thermal analysis (DTA), the x-ray powder diffraction (XRD),
scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDS),
Ultraviolet visible spectroscopy (Uv),     impedance spectroscopy (IS) characterization
techniques.
From TGA/DTA analysis, it was identified the complete crystal formation of CdFe2O4
and  Cd0.85Ni0.075Cu0.075Fe2O4  ferrites. The XRD analysis confirms that CdFe2O4  and
Cd0.85Ni0.075Cu0.075Fe2O4 ferrites synthesized by sol-gel belong to a cubic spinel structure
with space group of Fd3m.   It was also observed that    the substitution of Ni
+2
 and Cu+2

ions for Cd2+
  ions result in decrease lattice parameter which has led to decrease in unit
cell volume and crystal size of CdFe2O4. Moreover, different structural parameters, such
as the x-ray density, bulk density, surface area, porosity of both  ferrites were estimated.
The SEM analysis revealed that smaller grain sizes are observed for
Cd0.85Ni0.075Cu0.075Fe2O4  ferrite sample. This is consistent with the obtained smaller
crystal size and lattice parameter. The EDS analysis showed that all the elements are
incorporated in the lattice of both CdFe2O4  and Cd0.85Ni0.075Cu0.075Fe2O4  samples. No
other elements are detected in both samples. From UV-vis spectroscopy study, the optical
band gap was found to be 2.7 eV for CdFe2O4  ferrite and  3.02eV for
Cd0.85Ni0.075Cu0.075Fe2O4  ferrite. The variations of the real and imaginary impedance as
well as dielectric constant as a function of frequency for both synthesized ferrites were
also investigated in this study.
Morphological Classification of Galaxies Using SpinalNet
Creators: name: Shaiakhmetov, Dim
name: Mekuria, Remudin Reshid
name: Isaev, Ruslan
name: Unsal, Fatma
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deep neural networks (DNNs) with a step-by-step introduction of inputs, which is constructed by imitating the somatosensory system in human body, known as SpinalNet have been implemented in this work on a Galaxy Zoo dataset. The input segmentation in SpinalNet has enabled the intermediate layers to take some of the inputs as well as output of preceding layers thereby reducing the amount of the collected weights in the intermediate layers. As a result of these, the authors of SpinalNet reported to have achieved in most of the DNNs they tested, not only a remarkable cut in the error but also in the large reduction of the computational costs. Having applied it to the Galaxy Zoo dataset, we are able to classify the different classes and/or sub-classes of the galaxies. Thus, we have obtained higher classification accuracies of 98.2, 95 and 82 percents between elliptical and spirals, between these two and irregulars, and between 10 sub-classes of galaxies, respectively.
description: 5 pages, 4 figures, ICECCO conference
Reasoning about the supernatural : a cross-cultural examination of how and when intuitions shape belief
Creators: name: Baimel, Adam Sean
Publisher: name: University of British Columbia
Year: 2019

description: The cognitive sciences of religion have theorized that supernatural agent beliefs are shaped by intuitively-supported psychological processes (e.g., teleological thinking, and mentalizing). And, evidence is accumulating that individual differences in reliance on these intuitions is positively related to religious beliefs and that, on the other hand, broad tendencies for questioning them are negatively related to belief. In this dissertation, I build on this literature by providing first tests of several longstanding and some novel theoretical accounts of (1) when and in what ways broad tendencies for questioning intuitions come to predict belief and (2) when and in what ways mentalizing becomes implicated in beliefs. In Chapter 2 (N = 5284 students, Americans and Indians), I examine how and when tendencies for questioning intuitions (i.e., analytical thinking) is associated with belief by testing three theoretical accounts of this relationship. In Chapter 3 (3 studies; N = 2191 students, Christian and Hindu Americans, Indians), I examine how and when intuitions for reasoning about mental states (i.e., mentalizing) come to support belief in god by testing a different set of three theoretical accounts against the evidence. In Chapter 4 (N = 2027 from 14 societies), I examine predictions generated in Chapter 3 regarding the prevalence and correlates of mentalized deity concepts in a sample that spans diverse scales of societal complexity, market integration, and religious traditions. Results demonstrate that deities are increasingly mentalized the more they are moralized (i.e., attributed with moral knowledge and capacities to punish). Throughout, this work demonstrates the necessity of taking theory-testing in the cognitive sciences of religion across cultures and religious traditions. Methodologically, this work takes an individual difference approach and employs high-powered samples. When suitable, statistical mediation analyses are conducted to test the processes by which intuitions relate to belief. Broadly, results are discussed in terms of their contributions to the refining existing accounts of how and when intuitions come to be implicated in religious beliefs across cultures.
Spin and Orbital angular momentum propagation in anisotropic media: theory
Creators: name: Picón, Antonio
name: Benseny, Albert
name: Mompart, Jordi
name: Calvo, Gabriel F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper is devoted to study the propagation of light beams carrying orbital angular momentum in optically anisotropic media. We first review some properties of homogeneous anisotropic media, and describe how the paraxial formalism is modified in order to proceed with a new approach dealing with a general setting of paraxial propagation along uniaxial inhomogeneous media. This approach is suitable for describing the space-variant-optical-axis phase plates.
THE EFFECT OF TEMPERATURE ON THE ELECTRICAL    AND DIELECTRIC PROPERTIES OF   MANGANESE FERRITE NANOPARTICLES
Creators: name: TAKELE GURMU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In the present study,  MnFe2O4  and Mn0.85Zn0.05Cu0.1Fe2O4  ferrites  were successfully
synthesized by solid state reaction method. The thermal, structural, electrical and dielectric
properties of  these ferrites were investigated using different characterization techniques.
From  thermogravimetric analysis (TGA) and differential thermal analysis (DTA) study,
compound formation temperature as well as the weight  loss regions was  identified for both
compounds. The X-ray diffraction (XRD) patterns of the synthesized samples confirmed the
formation of spinel structure  with Fd-3m space group without any secondary phases or
impurity. The crystallite sizes for the two compounds were calculated from most intense peak
(311) using the  Scherer  formula and they were found to be 70.8 nm and 61. 9 nm  for
MnFe2O4  and Mn0.85Zn0.05Cu0.1Fe2O4, are  respectively. This confirmed the nanocrystalline
nature of both synthesized materials. The lattice parameter, unite cell volume, x-ray density,
bulk density, porosity, surface area of both synthesized ferrites were also calculated from the
obtained XRD data.
From  FT-IR spectroscopy study, two strong metal-oxygen absorption  bands, which are
commonly observed in ferrite materials, were obtained at  585.5  cm–1
  and  594.4  cm–1
in
MnFe2O4  and Mn0.85Zn0.05Cu0.1Fe2O4  spinel ferrites,  respectively.  The cole-cole plot,
complex  impedance,  dielectric permittivity and ac conductivity of Mn0.85Zn0.05Cu0.1Fe2O4
were measured at different temperatures in the variable frequency ranges of 20 to 1 MHZ. It
was found that the values of the ac conductivity and dielectric permeability were increased
with increasing temperature, which is an expected behavior of ferrites. This is a very
important feature for power applications of ferrites.  It was also observed that the real and
imaginary part of impedance values were typically higher at lower frequency region for
different measured temperatures and for increasing the frequency, the impedance decreased.
The high value of impedance at low frequency region is due to the high polarization caused
by space charges in samples. Both  the  dielectric constant and the ac conductivity of
Mn0.85Zn0.05Cu0.1Fe2O4 increase with an increase in temperature for all ranges of frequencies.
ฤทธิ์ต้านอนุมูลอิสระแบบใช้และไม่ใช้เอนไซม์ของสารสกัดจากผลมะเขือเทศราชินี มะเขือเทศสีดาและมะเขือเทศลูกใหญ่
Creators: name: นิรมล ธรรมวิริยสติ
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: ฤทธิ์ต้านอนุมูลอิสระ
วิตามินซี
มะเขือเทศราชินี
มะเขือเทศสีดา
มะเขือเทศลูกใหญ่

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 163-173
THERMAL, ELECTRICAL AND DIELECTRIC PROPERTIES  STUDIES OF LiMn1.977M0.023O4 (M = Ce, Cu) MATERIALS
Creators: name: BIRHANU BELETE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Lithium manganese oxide LiMn2O4
is recently one of the most intensively studied cathode
materials for lithium ion batteries,  due to its low cost and non-toxic nature when compared
with  other  layered  oxides  such  as  LiCoO2 and  LiNiO
2
.  However,  LiMn2O4
shows  severe
capacity  fading  with  cycling  as  compared  to  LiCoO2
.  Different  methods  are  employed  to
minimize the aforementioned problems. Spinel LiMn1.977M0.023O4 (M  = Cerium, Cu) cathode
materials  were  synthesized  by  sol-gel  method  using  citric  acid  as  a  chelating  agent.  The
materials  were  characterized  by  using  TGA/DTA,  XRD,  FT-IR  spectroscopy,  Raman
spectroscopy  and inductance, capacitance  & resistance (LCR) meter. The TGA/DTA result
indicates  that  exothermic  peaks,  large  weight  loss  regions,  which  are  attributed  to  the
decomposition of nitrate precursors, are identified.  The XRD results of both materials revile
the formation of pure spinel phases with Fd-3m space group without any secondary phases or
impurities.  It  is also found that the  lattice constant of spinel  LiMn1.977
Ce0.023O4
(8.26 Å) is
larger than that of LiMn
1.977
Cu0.023O4  (8.249 Å). The FT-IR spectroscopy study shows that
Ce
3+
and Cu
2+
sabstituted  spinels  exhibit  two  strong  absorbation  spectral  bands,  which  are
responsible for the formation of the synthesized materials. Similar results are also found from
Raman  spectroscopy study. The room temperature conductivity of both samples is found to
be  3.0  x  10
-5
S/cm  for  LiMn1.977
Ce0.023O4
electrode  and  2.58  x  10
-5
S/cm  for
LiMn1.977
Cu0.023O4
electrode. From the dielectric constant ε′ as a function of frequency study,
it  is  observed  that  value  of  ε′  maximum  at  lower  frequencies  and  it  begins  to  drop  and
becomes constant at higher frequencies.
การเปรียบเทียบประสิทธิภาพของสารทำความสะอาดบนพื้นผิวโต๊ะปฏิบัติการห้องปฏิบัติการจุลชีววิทยา คณะแพทยศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Creators: name: สุนทรี สวนทับทิม
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: จุลินทรีย์
สารทำความสะอาด
ห้องปฏิบัติการจุลชีววิทยา

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 174-185
การวิเคราะห์หลายเกณฑ์ในการกำหนดพื้นที่ที่เหมาะสมสำหรับการติดตั้งระบบเอ็นแคป
Creators: name: ลัดดาวรรณ เหรียญตระกูล
Publisher: name: กองบริหารการวิจัย
Year: 2565
Subjects: กระบวนการวิเคราะห์ตามลำดับชั้น
อุทยานแห่งชาติ
การลักลอบตัดไม้
กล้องดักถ่ายภาพ
ระบบสารสนเทศภูมิศาสตร์
ระบบเอ็นแคป

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 30, 1, 186-199
Quantum mechanics on spaces of nonconstant curvature: the oscillator problem and superintegrability
Creators: name: Ballesteros, Angel
name: Enciso, Alberto
name: Herranz, Francisco J.
name: Ragnisco, Orlando
name: Riglioni, Danilo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The full spectrum and eigenfunctions of the quantum version of a nonlinear oscillator defined on an N-dimensional space with nonconstant curvature are rigorously found. Since the underlying curved space generates a position-dependent kinetic energy, three different quantization prescriptions are worked out by imposing that the maximal superintegrability of the system has to be preserved after quantization. The relationships among these three Schroedinger problems are described in detail through appropriate similarity transformations. These three approaches are used to illustrate different features of the quantization problem on N-dimensional curved spaces or, alternatively, of position-dependent mass quantum Hamiltonians. This quantum oscillator is, to the best of our knowledge, the first example of a maximally superintegrable quantum system on an N-dimensional space with nonconstant curvature.
description: 26 pages, 5 figures
title: Negativism as the Philosophical Approach to the Meaning of Life
Creators: name: Abel, Johannes
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: The thesis of the paper is that regarding the question of meaning of life in our age, a study of Søren Kierkegaard's The Sickness unto Death (1849) can help us to understand the methodology as well as the theoretical position of Albert Camus' The Myth of Sisyphus´ (1942), a position that has still systematic relevance today. We see in Camus what happens to the meaning of life if a deep foundational religious layer breaks away.
EFFECT OF Cu SUBSTITUTION ON THE STRUCTURE,  ELECTRICAL AND DIELECTRIC PROPERTIES OF   Co-Ni FERRITE MATERIALS
Creators: name: ADANE BOGALE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Synthesis  and characterization  of nanoparticles, which is less than 100 nm  ferrite  materials
have gained much attention in recent years because of their unique properties and potential
for  many  applications  such  as  magnetic  storage  systems,  magnetic  resonance  imaging,
spintronics  etc.  Cu substitute Co
0.7-x
Ni0.3
Cux
Fe2O4
for  x =  0.05 and 0.1  ferrite materials  are
successfully  synthesized  by  sol-gel  method  processing  at  pH  value  of  7.  The  synthesized
ferrites  are  annealed  at  a  temperature  of  800  °C  for  8  hrs.  The  structure,  chemical
composition, electrical and dielectric properties of both ferrites are characterized by the x-ray
powder diffraction (XRD),  energy dispersive X-ray spectroscopy  (EDX),  Fourier transform
infrared (FT-IR) spectroscopy and complex impedance spectroscopy (CIS).
XRD analysis reveals that both ferrites  show cubic spinel structure with space group Fd3m.
The lattice parameter decreases from 8.447Å to 8.441 Å with increasing Cu content from x =
0.05 to x = 0.1.  The average crystallite sizes of the synthesized samples  are  determined by
using the X-ray analysis broadening of the (311) diffraction peak  by using Debye-Scherrer’s
formula and it is found in the values of 72 and 70.90 nm. The elemental analysis as obtained
from the EDX measurement  indicates the quantitative presence of Co, Ni, Cu, Fe and O in
the synthesized samples. It also confirms the absence of impurities in Co
0.65
Ni0.3
Cu0.05
Fe2O4
and Co
0.6
Ni0.3
Cu0.1
Fe2O4
ferrite samples.  The FT-IR  spectra show  the tetrahedral stretching
vibration  modes  of  Co0.65
Ni0.3
Cu0.05
Fe2O4
and  Co0.6
Ni0.3
Cu0.1
Fe2O4
ferries.  The  two  strong
frequency  bands  appeared  at  wavenumber  569.02  and  572.90  cm
−1
are  responsible  for  the
formation of Co
0.65
Ni0.3
Cu0.05
Fe2O4
and Co
0.6Ni0.3
Cu0.1
Fe2O4
ferrites, respectively.
From the electrical and dielectric properties studies, it is found that the value of the dielectric
constant  as well as the real impendence   of both samples decreases exponentially with an
increasing frequency due to interfacial polarization. For the case of conductivity, the effect of
the  variation  of  frequency  on  the  electrical  conductivity  of  both  synthesized  sample  are
identified.  Their  conduction  mechanism  is  explained  on  the  basis  of  hopping  of  charge
carriers between Fe
2+
- Fe
3+
ions on octahedral sites.
Individual variability in the feeding behaviour of dairy calves and goats
Creators: name: Neave, Heather Whittaker
Publisher: name: University of British Columbia
Year: 2019

description: There is individual variability in the development and expression of feeding behaviours in farm animals. This variation cannot be fully explained by differences in genetics, management practices, body size, or growth rate. The aim of my thesis was to describe how personality traits influence feeding behaviour of dairy calves and adult goats during challenging feeding practices, and to investigate alternatives to traditional feeding practices that could help individuals to cope with these challenges by attending to individual needs and promoting natural behaviour. In Chapter 2, I review the evidence that individual variability in feeding behaviour is associated with personality traits of the individual. In Chapters 3 and 4, I focused on the stressful management practice of weaning in dairy calves (i.e. transition from milk onto solid feed diet), and investigated if personality traits could explain variability in feeding behaviours, feed intake, and performance around weaning. I found that calves that were less reactive (exploratory, interactive) performed better during weaning than calves that were more reactive (vocal, inactive) (Chapter 3). When calves were weaned on an individualized weaning plan, I found that individual characteristics (such as fearfulness and learning ability) could explain variability in weaning age (Chapter 4). In Chapters 5 and 6, I focused on feeding practices on dairy goat farms that limit expression of natural feeding behaviours (feeding at floor level) and restricted space at the feeders leading to high amounts of competition to access feed. I provided goats with elevated feeder heights to promote natural browsing behaviours and found that goats ate more from, and competed to access, these feeders more compared to a traditional floor-level feeder (Chapter 5). Goats also differed in their expression of competitive behaviours at different feeder heights: more ‘bold’ goats expressed more aggression and more ‘fearful’ goats avoided competition (Chapter 6). These studies provide evidence that personality traits can explain individual variability in feeding behaviours during challenging feeding practices for dairy calves and goats, and that alternatives to these feeding practices may provide an improved opportunity for individuals to succeed by attending to individual needs and promoting natural behaviour.
Prediction of Performance and Power Consumption of GPGPU Applications
Creators: name: Alavani, Gargi
name: Sarkar, Santonu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences
subject: C.4.5; C.1.4

description: Graphics Processing Units (GPUs) have become an integral part of High-Performance Computing to achieve an Exascale performance. The main goal of application developers of GPU is to tune their code extensively to obtain optimal performance, making efficient use of different resources available. While extracting optimal performance of applications on an HPC infrastructure, developers should also ensure the applications have the least energy usage considering the massive power consumption of data centres and HPC servers. This thesis presents two models developed which can be utilized by developers in analysing the CUDA kernel's energy dissipation. The first one is a model that predicts the CUDA kernel's execution time. Here a PTX code is statically analysed to extract instruction features, control flow, and data dependence. We propose two scheduling algorithm approaches that satisfy the performance and hardware constraints. The second model is a static analysis-based power prediction built by utilizing machine learning techniques. Features used for building the model are derived using static analysis of PTX code. These features are chosen to understand the relationship between GPU power consumption and program features that can aid developers in building energy-efficient, sustainable applications. The dataset used for validating both models include kernels from different benchmarks suits, sizes, nature (e.g., compute-bound, memory-bound), and complexity (e.g., control divergence, memory access patterns). We also present a tool that has practically validated the effectiveness and ease of using the two models as design assistance tools for GPU.
description: PhD Thesis