On the Security of Zhou et al.’s Authentication and Integrity Scheme for Digital Mammography Images

Goh, Antionette W.-T.; Razali, Ermaliza; Phan, Raphaël C.‐W.; Wong, M. L. Dennis

doi:10.1007/978-3-540-69139-6_215

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…This result was not surprising because the blend miscibility of PVP is remarkably high and it has been reported that PVP is still capable of forming miscible blends with cellulose acetate, polyethersulfone, and polysulfone. 19,23,31 The T g s of PEI/PVP hollow fiber membranes with sponge structure (membrane nos. 7-10) were lower than that with finger-void structure (membrane nos.…”

Section: Thermal Properties and Mechanical Properties Of Pei/pvp Hollmentioning

confidence: 99%

Effect of polyvinylpyrrolidone molecular weights on morphology, oil/water separation, mechanical and thermal properties of polyetherimide/polyvinylpyrrolidone hollow fiber membranes

Chung

1999

J. Appl. Polym. Sci.

120

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ABSTRACT:We prepared polyetherimide (PEI) hollow fiber membranes using polyvinylpyrrolidones (PVP) with different molecular weights (PVP 10,000, PVP 40,000, and PVP 1,300,000) as additives for oil/water separation. Asymmetric hollow fiber membranes were fabricated by wet phase inversion technique from 25 wt % or 30 wt % solids of 20 : 5 : 75 or 20 : 10 : 70 (weight ratio) PEI/PVP/N-metyl-2-pyrrolidone (NMP) solutions and a 95 : 5 NMP/water solution was used as bore fluid to eliminate resistance on the internal surface. Effects of PVP molecular weights on morphology, oil-surfactant-water separation characteristics, mechanical, and thermal properties of PEI/PVP hollow fiber membranes were investigated. It was found that an increase in PVP molecular weight and percentage in PEI/PVP dope solution resulted in the membrane morphology change from the finger-like structure to the spongy structure. Without sodium hypochlorite posttreatment, hollow fiber membranes with higher PVP molecular weights had a higher rejection but with a lower water flux. For oil-surfactant-water emulsion systems (1600 ppm surfactant of sodium dodecylbenzenesulfonate and 2500 ppm oil of n-decane), experimental results illustrated that the rejection rates for surfactant, total organic carbon, and oil were 76.1 Ϸ 79.8%, 91.0 Ϸ 93.0%, and more than 99%, respectively. Based on the glass transition temperature values, PVP existed in hollow fiber membranes and resulted in the hydrophilicity of membranes. In addition, using NaOCl as a posttreatment agent for membranes showed a significant improvement in membrane permeability for PVP with a molecular weight of 1300 K, whereas the elongation at break of the treated hollow fiber membranes decreased significantly.

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Section: Thermal Properties and Mechanical Properties Of Pei/pvp Hollmentioning

confidence: 99%

Effect of polyvinylpyrrolidone molecular weights on morphology, oil/water separation, mechanical and thermal properties of polyetherimide/polyvinylpyrrolidone hollow fiber membranes

Chung

1999

J. Appl. Polym. Sci.

120

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“…refs. [16][17][18][19][20], except that the magnetic transition at ambient pressure is strongly first-order, although the first-order signature is significantly weakened at elevated pressures [12,13]. Nevertheless, nuclear quadrupole resonance detected substantial magnetic fluctuations in the paramagnetic state [21].…”

mentioning

confidence: 98%

Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide

Niu

Yip

et al. 2017

Nat Commun

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In conventional metals, modification of electron trajectories under magnetic field gives rise to a magnetoresistance that varies quadratically at low field, followed by a saturation at high field for closed orbits on the Fermi surface. Deviations from the conventional behaviour, for example, the observation of a linear magnetoresistance, or a non-saturating magnetoresistance, have been attributed to exotic electron scattering mechanisms. Recently, linear magnetoresistance has been observed in many Dirac materials, in which the electron–electron correlation is relatively weak. The strongly correlated helimagnet CrAs undergoes a quantum phase transition to a nonmagnetic superconductor under pressure. Here we observe, near the magnetic instability, a large and non-saturating quasilinear magnetoresistance from the upper critical field to 14 T at low temperatures. We show that the quasilinear magnetoresistance may arise from an intricate interplay between a nontrivial band crossing protected by nonsymmorphic crystal symmetry and strong magnetic fluctuations.

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“…It was subsequently shown [7] that the same scenario can help to explain the large solar as well as small reactor mixing angle θ 13 bringing these models to the mainstream of neutrino phenomenology. Other detailed questions in the model such as CP violation [13], proton decay [14] as well as symmetry breaking [15] have since been discussed. Because of predictivity in the neutrino sector while keeping the rest of fermion mass phenomenology in agreement with observations as well as general economy of the Higgs sector, these minimal models have become very attractive and are in fact in a better footing than SU(5) models were in the early 80's, with serious attention being paid to them.…”

Section: Introductionmentioning

confidence: 99%

Natural realizations of the seesaw mechanism in miniwarped minimal SO(10)

Mohapatra

Okada

2007

Phys. Rev. D

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The minimal SUSY SO(10) GUT models with 10, 126 and 210 Higgs and only renormalizable couplings has been shown to provide a simple way to understand the neutrino mixings as well as the ratio ∆m 2 ⊙ /∆m 2 A in terms of quark mixing parameter θ Cabibbo , provided neutrino masses are described by type II seesaw formula. However, in this minimal picture, it is impossible to realize type II dominance with renormalizable couplings in 4-dimensions. We show that this problem can be cured by embedding this model into a warped 5-dimensional space time with warping between the Planck and the GUT scale, where both type II as well as mixed seesaw formulae can be realized in a natural manner without expanding the Higgs sector. These models also avoid the possible problem of threshold effects associated with large Higgs representations since the theory above the GUT scale is now strongly coupled. *

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On the Security of Zhou et al.’s Authentication and Integrity Scheme for Digital Mammography Images

Cited by 3 publications

References 2 publications

Effect of polyvinylpyrrolidone molecular weights on morphology, oil/water separation, mechanical and thermal properties of polyetherimide/polyvinylpyrrolidone hollow fiber membranes

Effect of polyvinylpyrrolidone molecular weights on morphology, oil/water separation, mechanical and thermal properties of polyetherimide/polyvinylpyrrolidone hollow fiber membranes

Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide

Natural realizations of the seesaw mechanism in miniwarped minimal SO(10)

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