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Journal articles on the topic 'Hyper-separation'

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Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

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1

Woods, William C., Scott D. Holland, and Michael DiFulvio. "Hyper-X Stage Separation Wind-Tunnel Test Program." Journal of Spacecraft and Rockets 38, no. 6 (November 2001): 811–19. http://dx.doi.org/10.2514/2.3770.

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2

Lu, Zhengda, Elizabeth Rey, Sasank Vemulapati, Balaji Srinivasan, Saurabh Mehta, and David Erickson. "High-yield paper-based quantitative blood separation system." Lab on a Chip 18, no. 24 (2018): 3865–71. http://dx.doi.org/10.1039/c8lc00717a.

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3

Buning, Pieter G., Tin-Chee Wong, Arthur D. Dilley, and Jenn L. Pao. "Computational Fluid Dynamics Prediction of Hyper-X Stage Separation Aerodynamics." Journal of Spacecraft and Rockets 38, no. 6 (November 2001): 820–27. http://dx.doi.org/10.2514/2.3771.

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4

Gaspar, Paulo, Jaime Carbonell, and José Luís Oliveira. "On the parameter optimization of Support Vector Machines for binary classification." Journal of Integrative Bioinformatics 9, no. 3 (December 1, 2012): 33–43. http://dx.doi.org/10.1515/jib-2012-201.

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Summary Classifying biological data is a common task in the biomedical context. Predicting the class of new, unknown information allows researchers to gain insight and make decisions based on the available data. Also, using classification methods often implies choosing the best parameters to obtain optimal class separation, and the number of parameters might be large in biological datasets.Support Vector Machines provide a well-established and powerful classification method to analyse data and find the minimal-risk separation between different classes. Finding that separation strongly depends on the available feature set and the tuning of hyper-parameters. Techniques for feature selection and SVM parameters optimization are known to improve classification accuracy, and its literature is extensive.In this paper we review the strategies that are used to improve the classification performance of SVMs and perform our own experimentation to study the influence of features and hyper-parameters in the optimization process, using several known kernels.

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5

Pershad, Yash, Nicole Herbots, Grady Day, Ryan van Haren, Shawn Whaley, Alvaro Martinez, Sabrina Suhartono, Robert Culbertson, Mark Mangus, and Barry Wilkens. "Determining Canine Blood and Human Blood Composition by Congealing Microliter Drops into Homogeneous Thin Solid Films (HTSFs) via HemaDrop™." MRS Advances 2, no. 45 (2017): 2451–56. http://dx.doi.org/10.1557/adv.2017.479.

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ABSTRACTAccurate analysis of microliter blood samples can improve patient care during medical testing and forensics. Patients can suffer from anemia due to the larger volume required for blood tests, 7 milliliters per vial. Attempts at analysis of nanoliter blood samples by Theranos have systematic errors > 10%, higher than medically acceptable thresholds. Our research aims to analyze composition of microliters of blood. This research investigates accuracy of analyzing blood via HemaDrop™, a patented technique to create a Homogenous Thin Solid Film (HTSF) on super-hydrophilic and hyper-hydrophilic surfaces with 5 microliter droplets of blood. To investigate HemaDrop™’s accuracy, Ion Beam Analysis (IBA) is conducted on dried blood spots (DBS) and HTSFs from congealed blood drops on HemaDrop™-treated samples. HTSFs are observed via optical microscopy to compare uniformity, precipitation, and phase separation. DBSs and HTSFs are compared via optical microscopy for canine blood and human blood. After drying uncoated samples, canine and human blood DBSs exhibit cratering, phase separation, and lack of uniformity. Conversely, HTSFs are uniform, exhibiting no cratering and little phase separation. Next, IBA demonstrates that HTSFs of canine and human blood solidified on super-hydrophilic and hyper-hydrophilic coatings yield spectra where species and electrolytes can be identified, unlike on DBSs. The damage curve method enables extracting accurate blood composition for elements, accounting for IBA damage. Relative error in blood elemental composition is within the 10% medical threshold. While both produced films within the 10% threshold, hyper-hydrophilic coatings eliminated phase separation from serum observed in HTSFs on super-hydrophilic coatings. HemaDrop™ provides consistent measurements independent of sample, showing HTSFs from µL blood drops are uniform, reproducible, and free of phase separation. Thus, HemaDrop™ allows for analysis in vacuum from congealed blood drops and expands the range of techniques to identify elements and molecules.

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6

Rendueles de la Vega, M., C. Chenou, J. M. Loureiro, and A. E. Rodrigues. "Mass transfer mechanisms in Hyper D media for chromatographic protein separation." Biochemical Engineering Journal 1, no. 1 (January 1998): 11–23. http://dx.doi.org/10.1016/s1369-703x(97)00003-x.

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7

Bubenchikov, Alexey Mikhailovich, Mikhail Alekseevich Bubenchikov, Anna Sergeevna Chelnokova, and Soninbayar Jambaa. "An Analytical Solution to the Problem of Hydrogen Isotope Passage through Composite Membranes Made from 2D Materials." Mathematics 9, no. 19 (September 22, 2021): 2353. http://dx.doi.org/10.3390/math9192353.

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An analytical solution to the problem of wave transport of matter through composite hyper-fine barriers is constructed. It is shown that, for a composite membrane consisting of two identical ultra-thin layers, there are always distances between the layers at which the resonant passage of one of the components is realized. Resonance makes it possible to separate de Broiler waves of particles with the same properties, which differ only in masses. Broad bands of hyper-selective separation of a hydrogen isotope mixture are found at the temperature of 40 K.

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8

Sallee, Margaret W., and Danielle V. Lewis. "Hyper-separation as a tool for work/life balance: Commuting in academia." Journal of Public Affairs Education 26, no. 4 (May 12, 2020): 484–505. http://dx.doi.org/10.1080/15236803.2020.1759321.

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9

Taniguchi, Ikuo, Kae Kinugasa, Satsuki Egashira, and Mitsuru Higa. "Preparation of well-defined hyper-branched polymers and the CO2 separation performance." Journal of Membrane Science 502 (March 2016): 124–32. http://dx.doi.org/10.1016/j.memsci.2015.12.032.

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10

Dutov, A. A., D. A. Nikitin, Yu L. Lukyanova, A. V. Sverkunova, A. V. Martinova, and A. V. Ermolina. "HPLC analysis of dehydroepiandrosterone sulfate in serum with use of solid-phase extraction on hyper cross-linked polystyrene (purosep-200)." Biomeditsinskaya Khimiya 60, no. 6 (2014): 651–54. http://dx.doi.org/10.18097/pbmc20146006651.

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We have developed a simple HPLC method for analysis of the dehydroepiandrosterone sulfate (DHEA-sulfate) in serum with use a new procedure of solid-phase extraction (SPE) on hyper cross-linked polystyrene (Purosep-200) and fast chromatographic separation on the monolithic column under isocratic elution and UV detection at 200 nm. Complete SPE procedure lasts for about 7 min, chromatographic separation takes less than 6 min. Simplicity and high reproducibility of this method makes it attractive in routine clinical practice.

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11

Li, Haiying, Bo Meng, Shannon M. Mahurin, Song-Hai Chai, Kimberly M. Nelson, David C. Baker, Honglai Liu, and Sheng Dai. "Carbohydrate based hyper-crosslinked organic polymers with –OH functional groups for CO2 separation." Journal of Materials Chemistry A 3, no. 42 (2015): 20913–18. http://dx.doi.org/10.1039/c5ta03213j.

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A class of novel hyper-crosslinked microporous polymers, based on green and renewable carbohydrates, was synthesized for carbon capture and storage with high CO₂/N₂ selectivity by hydrogen bonding and dipole–quadrupole interactions.

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12

Gao, Lyuzhou, Liqin Cao, Yanfei Zhong, and Zhaoyang Jia. "Field-Based High-Quality Emissivity Spectra Measurement Using a Fourier Transform Thermal Infrared Hyperspectral Imager." Remote Sensing 13, no. 21 (November 5, 2021): 4453. http://dx.doi.org/10.3390/rs13214453.

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Emissivity information derived from thermal infrared (TIR) hyperspectral imagery has the advantages of both high spatial and spectral resolutions, which facilitate the detection and identification of the subtle spectral features of ground targets. Despite the emergence of several different TIR hyperspectral imagers, there are still no universal spectral emissivity measurement standards for TIR hyperspectral imagers in the field. In this paper, we address the problems encountered when measuring emissivity spectra in the field and propose a practical data acquisition and processing framework for a Fourier transform (FT) TIR hyperspectral imager—the Hyper-Cam LW—to obtain high-quality emissivity spectra in the field. This framework consists of three main parts. (1) The performance of the Hyper-Cam LW sensor was evaluated in terms of the radiometric calibration and measurement noise, and a data acquisition procedure was carried out to obtain the useful TIR hyperspectral imagery in the field. (2) The data quality of the original TIR hyperspectral imagery was improved through preprocessing operations, including band selection, denoising, and background radiance correction. A spatial denoising method was also introduced to preserve the atmospheric radiance features in the spectra. (3) Three representative temperature-emissivity separation (TES) algorithms were evaluated and compared based on the Hyper-Cam LW TIR hyperspectral imagery, and the optimal TES algorithm was adopted to determine the final spectral emissivity. These algorithms are the iterative spectrally smooth temperature and emissivity separation (ISSTES) algorithm, the improved Advanced Spaceborne Thermal Emission and Reflection Radiometer temperature and emissivity separation (ASTER-TES) algorithm, and the Fast Line-of-sight Atmospheric Analysis of Hypercubes-IR (FLAASH-IR) algorithm. The emissivity results from these different methods were compared to the reference spectra measured by a Model 102F spectrometer. The experimental results indicated that the retrieved emissivity spectra from the ISSTES algorithm were more accurate than the spectra retrieved by the other methods on the same Hyper-Cam LW field data and had close consistency with the reference spectra obtained from the Model 102F spectrometer. The root-mean-square error (RMSE) between the retrieved emissivity and the standard spectra was 0.0086, and the spectral angle error was 0.0093.

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13

Paciencia, Todd, Trevor Bihl, and Kenneth Bauer. "Improved N-dimensional data visualization from hyper-radial values." Journal of Algorithms & Computational Technology 13 (January 2019): 174830261987360. http://dx.doi.org/10.1177/1748302619873602.

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Higher-dimensional data, which is becoming common in many disciplines due to big data problems, are inherently difficult to visualize in a meaningful way. While many visualization methods exist, they are often difficult to interpret, involve multiple plots and overlaid points, or require simultaneous interpretations. This research adapts and extends hyper-radial visualization, a technique used to visualize Pareto fronts in multi-objective optimizations, to become an n-dimensional visualization tool. Hyper-radial visualization is seen to offer many advantages by presenting a low-dimensionality representation of data through easily understood calculations. First, hyper-radial visualization is extended for use with general multivariate data. Second, a method is developed by which to optimally determine groupings of the data for use in hyper-radial visualization to create a meaningful visualization based on class separation and geometric properties. Finally, this optimal visualization is expanded from two to three dimensions in order to support even higher-dimensional data. The utility of this work is illustrated by examples using seven datasets of varying sizes, ranging in dimensionality from Fisher Iris with 150 observations, 4 features, and 3 classes to the Mixed National Institute of Standards and Technology data with 60,000 observations, 717 non-zero features, and 10 classes.

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14

Shelton, David P. "Long range correlation of molecular orientation and vibration in liquid CDCl₃." AIP Advances 12, no. 10 (October 1, 2022): 105008. http://dx.doi.org/10.1063/5.0107226.

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The polarization dependence of hyper-Rayleigh second harmonic light scattering (SHS) and hyper-Raman light scattering (HRS) measured for liquid CDCl3 show the effect of long-range correlation of molecular orientation and vibration. HRS from the ν1, ν4, and ν5 vibration modes is polarized transverse to the scattering wavevector, whereas HRS from the ν2, ν3, and ν6 vibration modes and SHS from the ν0 orientation mode all show longitudinal polarization. The transverse polarized HRS is accounted for by long range vibration correlation due to dipole–dipole interaction for molecules at 20–400 nm separation. Longitudinal SHS and HRS are due to the combined effect of long range dipole–dipole orientation correlation and the increment in the molecular first hyperpolarizability induced by short range intermolecular interactions.

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15

Golubev, Georgy, Stepan Sokolov, Tatyana Rokhmanka, Sergey Makaev, Ilya Borisov, Svetlana Khashirova, and Alexey Volkov. "High Efficiency Membranes Based on PTMSP and Hyper-Crosslinked Polystyrene for Toxic Volatile Compounds Removal from Wastewater." Polymers 14, no. 14 (July 20, 2022): 2944. http://dx.doi.org/10.3390/polym14142944.

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For the first time, membranes based on poly(1-trimethylsilyl-1-propyne) (PTMSP) with 5–50 wt% loading of hyper-crosslinked polystyrene sorbent particles (HCPS) were obtained; the membranes were investigated for the problem of effective removal of volatile organic compounds from aqueous solutions using vacuum pervaporation. The industrial HCPS sorbent Purolite Macronet™ MN200 was chosen due to its high sorption capacity for organic solvents. It has been found that the membranes are asymmetric when HCPS content is higher than 30 wt%; scanning electron microscopy of the cross-sections the membranes demonstrate that they have a clearly defined thin layer, consisting mainly of PTMSP, and a thick porous layer, consisting mainly of HCPS. The transport and separation characteristics of PTMSP membranes with different HCPS loading were studied during the pervaporation separation of binary and multicomponent mixtures of water with benzene, toluene and xylene. It was shown that the addition of HCPS up to 30 wt% not only increases the permeate fluxes by 4–7 times, but at the same time leads to 1.5–2 fold increase in the separation factor. It was possible to obtain separation factors exceeding 1000 for all studied mixtures at high permeate fluxes (0.5–1 kg/m2∙h) in pervaporation separation of binary solutions.

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16

Frechette, André, Ann Huletsky, Rémy J. Aubin, Gilbert de Murcia, Paul Mandel, André Lord, Gilles Grondin, and Guy G. Poirier. "Poly(ADP-ribosyl)ation of chromatin: kinetics of relaxation and its effect on chromatin solubility." Canadian Journal of Biochemistry and Cell Biology 63, no. 7 (July 1, 1985): 764–73. http://dx.doi.org/10.1139/o85-096.

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We have studied the kinetics of relaxation of poly(ADP-ribosyl)ated polynucleosomes produced by endogenous enzyme activity by comparing the generation of hyper(ADP-ribosyl)ated histone H1 and its effect on the chromatin structure as revealed by electron microscopy. A correlation can be established between the appearance of histone H1 modified forms and the localized relaxation of the chromatin. We have also noticed, in parallel, that poly(ADP-ribosyl)ated chromatin showed increased solubility in the presence of Mg2+ and 0.2 M NaCl. Electron microscopic examination of the solubilized chromatin produced by poly(ADP-ribosyl)ation shows polynucleosomes exhibiting more relaxed conformation, whereas an increasing amount of hyper(ADP-ribosyl)ated histone H1 is found in the pellet, as shown by acid–urea–polyacrylamide electrophoretic separation of histone extracts.

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17

Jiao, Pengfei, Yuping Wei, Man Zhang, Xin Zhang, Hao Zhang, and Xin Yuan. "Adsorption Separation of l-Tryptophan Based on the Hyper-Cross-Linked Resin XDA-200." ACS Omega 6, no. 3 (January 14, 2021): 2255–63. http://dx.doi.org/10.1021/acsomega.0c05574.

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18

ALBA, DAVID, and LUCA LUSANNA. "GENERALIZED EULERIAN COORDINATES FOR RELATIVISTIC FLUIDS: HAMILTONIAN REST-FRAME INSTANT FORM, RELATIVE VARIABLES, ROTATIONAL KINEMATICS." International Journal of Modern Physics A 19, no. 17n18 (July 20, 2004): 3025–82. http://dx.doi.org/10.1142/s0217751x04018415.

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We study the rest-frame instant form of a new formulation of relativistic perfect fluids in terms of new generalized Eulerian configuration coordinates. After the separation of the relativistic center of mass from the relative variables on the Wigner hyper-planes, we define orientational and shape variables for the fluid, viewed as a relativistic extended deformable body, by introducing dynamical body frames. Finally we define Dixon's multipoles for the fluid.

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19

PAHLAVANI, M. R., M. SADEGHI, S. M. MOTEVALLI, and Y. AQABAEI. "STUDY OF CHARGE-ASYMMETRIC 3Heμd MOLECULE IN HYPER-SPHERICAL ELLIPTIC COORDINATE SYSTEM." Modern Physics Letters A 25, no. 05 (February 20, 2010): 389–98. http://dx.doi.org/10.1142/s0217732310031518.

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Study of Coulombian three-body system is a basic phenomenon in muon catalyzed fusion (μCF). In this investigation, separation of variables in the base of adiabatic expansion, have been applied to the mesic three-body molecule, 3 He μd using hyper-spherical elliptic coordinate system. The corresponding eigenvalue problem has been solved and the adiabatic potential and the binding energy of this system are calculated. The obtained results agreed with the expected values of various theoretical methods.

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20

Fu, Zhenyu, Shan Han, Jianhan Huang, and You-Nian Liu. "Comparison of hyper-cross-linked polystyrene/polyacryldiethylenetriamine (HCP/PADETA) interpenetrating polymer networks (IPNs) with hyper-cross-linked polystyrene (HCP): structure, adsorption and separation properties." RSC Advances 6, no. 38 (2016): 32340–48. http://dx.doi.org/10.1039/c6ra01932c.

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21

Di Vincenzo, Antonella, Antonio Palumbo Piccionello, Alberto Spinella, Delia Chillura Martino, Marco Russo, and Paolo Lo Meo. "Polyaminoazide mixtures for the synthesis of pH-responsive calixarene nanosponges." Beilstein Journal of Organic Chemistry 15 (March 12, 2019): 633–41. http://dx.doi.org/10.3762/bjoc.15.59.

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Two mixtures of polyaminoazides were synthesized by a nucleophilic displacement strategy providing no separation of the components. The mixtures were adequately characterized by means of combined HR-ESIMS, FTIR and NMR techniques and, despite their complexity, they were successfully used to accomplish the subsequent preparation of pH-sensitive calixarene hyper-reticulated nanosponge materials. The desired responsivity to pH variations of the nanosponges obtained was verified by means of absorption tests on a set of organic pollutant model molecules.

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22

Bubenchikov, Alexey Mikhailovich, Mikhail Alekseevich Bubenchikov, Soninbayar Jambaa, Aleksandr Viktorovich Lun-Fu, and Anna Sergeevna Chelnokova. "Low-temperature separation of helium-helion mixture." REVIEWS ON ADVANCED MATERIALS SCIENCE 59, no. 1 (August 10, 2020): 361–70. http://dx.doi.org/10.1515/rams-2020-0004.

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AbstractThe research is devoted to the problem of designing materials with an adjustable property of permeability. The obtained tool for property regulation allows achieving hyper-selectivity in relation to separation of helium isotope mixtures, as well as some other gas mixtures. The reasearch is theoretical in nature; however, it suggests a clear direction of activity for experimenters. The result obtained is valid for ultrathin barriers of any form. As a result, a new exact solution of the Schrödinger equation of wave dynamics, which is valid for the case of two-barrier systems, is found. This solution allows for comprehensive consideration of the process of wave passage through a barrier and identification of the causes leading to super-permeability of individual components.

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23

Li, Weixin, Longfei Peng, Yinhui Li, Zan Chen, Cuijia Duan, Shuo Yan, and Biao Yuan. "Hyper cross‐linked polymers containing amino group functionalized polyimide mixed matrix membranes for gas separation." Journal of Applied Polymer Science 139, no. 20 (January 20, 2022): 52171. http://dx.doi.org/10.1002/app.52171.

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24

VENKATESAN, S., H. IMRIE, P. SMETHURST, and D. HALLIDAY. "Very low density lipoprotein sub-classes: separation and characterisation from normo and hyper-lipidaemic subjects." Biochemical Society Transactions 22, no. 2 (May 1, 1994): 101S. http://dx.doi.org/10.1042/bst022101s.

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25

Kang, Jukyoung, Tack-Jin Kim, Jong Won Park, Kyo-Young Lee, Doh Hee Park, Sungbin Park, Seok Kim, and Yongju Jung. "A Mesoporous Chelating Polymer-Carbon Composite for the Hyper-Efficient Separation of Heavy Metal Ions." Journal of Nanoscience and Nanotechnology 20, no. 5 (May 1, 2020): 3042–46. http://dx.doi.org/10.1166/jnn.2020.17471.

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The removal of heavy-metal ions from wastewater is an important objective from a public-health perspective, and chelating agents can be used to achieve this aim. Herein, we report the synthesis of mesoporous carbon as a chelating polymer host using nanoarchitectonics approach. Carboxymethylated polyethyleneimine, a chelating polymer, was incorporated into the mesopore walls of mesoporous carbon to create a polymer-mesoporous-carbon composite. Nitrogen adsorption– desorption experiments and scanning electron microscopy (SEM) were used to illustrate the structural advantages of the composite. Co2+ adsorption by the composite material was examined using cobalt nitrate solutions at pH 3. The study revealed that the Co2+-absorption data are most closely modeled by the Langmuir isotherm. The maximum adsorption capacity, calculated by linear regression, was determined to be about 40 mg-Co/g-composite at pH 3. The composite exhibited about a six-times higher adsorption capacity toward a dilute Co solution (12.5 ppm) than that of the pristine mesoporous carbon. In addition, the composite showed a substantially higher distribution coefficient (Kd = 1.54×105) compared to that (Kd = 2.05×102) of the mesoporous carbon. Overall, we expect that the mesoporous composite, with its large mesopores (~20 nm), will be in high demand for adsorption applications.

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26

Fu, Zhenyu, Jizhen Jia, Jing Li, and Changkun Liu. "Transforming waste expanded polystyrene foam into hyper-crosslinked polymers for carbon dioxide capture and separation." Chemical Engineering Journal 323 (September 2017): 557–64. http://dx.doi.org/10.1016/j.cej.2017.04.090.

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27

Yi, Shouliang, Bader Ghanem, Yang Liu, Ingo Pinnau, and William J. Koros. "Ultraselective glassy polymer membranes with unprecedented performance for energy-efficient sour gas separation." Science Advances 5, no. 5 (May 2019): eaaw5459. http://dx.doi.org/10.1126/sciadv.aaw5459.

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Membrane-based separation of combined acid gases carbon dioxide and hydrogen sulfide from natural gas streams has attracted increasing academic and commercial interest. These feeds are referred to as “sour,” and herein, we report an ultra H2S-selective and exceptionally permeable glassy amidoxime-functionalized polymer of intrinsic microporosity for membrane-based separation. A ternary feed mixture (with 20% H2S:20% CO2:60% CH4) was used to demonstrate that a glassy amidoxime-functionalized membrane provides unprecedented separation performance under challenging feed pressures up to 77 bar. These membranes show extraordinary H2S/CH4 selectivity up to 75 with ultrahigh H2S permeability >4000 Barrers, two to three orders of magnitude higher than commercially available glassy polymeric membranes. We demonstrate that the postsynthesis functionalization of hyper-rigid polymers with appropriate functional polar groups provides a unique design strategy for achieving ultraselective and highly permeable membrane materials for practical natural gas sweetening and additional challenging gas pair separations.

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28

Taniguchi, Ikuo, Norihisa Wada, Kae Kinugasa, and Mitsuru Higa. "CO2 capture by polymeric membranes composed of hyper-branched polymers with dense poly(oxyethylene) comb and poly(amidoamine)." Open Physics 15, no. 1 (November 10, 2017): 662–70. http://dx.doi.org/10.1515/phys-2017-0077.

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AbstractDue to CO2-philic nature of polyoxyethylene (POE), a dense POE comb structure was tethered onto PMMA backbone to develop CO2 separation membranes over N2. The resulting hyper-branched polymers displayed preferential CO2 permeation. When the polymer thin layer was formed on a high gas permeable polydimethylsiloxane (PDMS) support by a spray-coating manner, the resulting thin film composite (TFC) membranes displayed very high CO2 permeability. However, the CO2 selectivity, which was the permeability ratio of CO2 over N2, was moderate and lower than 50. To enhance the selectivity, poly(amidoamine) (PAMAM) was introduced to the hyper-branched polymers in the CO2-selective layer of the TFC membranes. The CO2 selectivity increased from 47 to 90 with increasing PAMAM content to 40 wt%, and it was drastically enhanced to 350 with PAMAM content of 50 wt%. Differential scanning calorimetry (DSC) and laser microscope revealed formation of PAMAM-rich domain at the higher amine content, where CO2 could readily migrate in comparison to the other polymeric fractions.

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29

Setnickova, Katerina, Karel Jerabek, Tomas Strasak, Monika Mullerova, Vera Jandova, Karel Soukup, Roman Petrickovic, Hui-Hsin Tseng, and Petr Uchytil. "Synthesis, Characterization, and Gas Adsorption Performance of Amine-Functionalized Styrene-Based Porous Polymers." Polymers 15, no. 1 (December 20, 2022): 13. http://dx.doi.org/10.3390/polym15010013.

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In recent years, porous materials have been extensively studied by the scientific community owing to their excellent properties and potential use in many different areas, such as gas separation and adsorption. Hyper-crosslinked porous polymers (HCLPs) have gained attention because of their high surface area and porosity, low density, high chemical and thermal stability, and excellent adsorption capabilities in comparison to other porous materials. Herein, we report the synthesis, characterization, and gas (particularly CO2) adsorption performance of a series of novel styrene-based HCLPs. The materials were prepared in two steps. The first step involved radical copolymerization of divinylbenzene (DVB) and 4-vinylbenzyl chloride (VBC), a non-porous gel-type polymer, which was then modified by hyper-crosslinking, generating micropores with a high surface area of more than 700 m2 g−1. In the following step, the polymer was impregnated with various polyamines that reacted with residual alkyl chloride groups on the pore walls. This impregnation substantially improved the CO2/N2 and CO2/CH4 adsorption selectivity.

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Marchal, Antoine, Marc-Antoine Miville-Deschênes, François Orieux, Nicolas Gac, Charles Soussen, Marie-Jeanne Lesot, Adrien Revault d’Allonnes, and Quentin Salomé. "ROHSA: Regularized Optimization for Hyper-Spectral Analysis." Astronomy & Astrophysics 626 (June 2019): A101. http://dx.doi.org/10.1051/0004-6361/201935335.

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Context. Extracting the multiphase structure of the neutral interstellar medium is key to understanding star formation in galaxies. The radiative condensation of the diffuse warm neutral medium producing a thermally unstable lukewarm medium and a dense cold medium is closely related to the initial step leading the atomic-to-molecular (HI-to-H2) transition and the formation of molecular clouds. Up to now, the mapping of these phases out of 21 cm emission hyper-spectral cubes has remained elusive mostly due to the velocity blending of individual cold structures present on a given line of sight. As a result, most of the current knowledge about the HI phases rests on a small number of absorption measurements on lines of sight crossing radio sources. Aims. The goal of this work is to develop a new algorithm to perform separation of diffuse sources in hyper-spectral data. Specifically the algorithm was designed in order to address the velocity blending problem by taking advantage of the spatial coherence of the individual sources. The main scientific driver of this effort was to extract the multiphase structure of the HI from 21 cm line emission only, providing a means to map each phase separately, but the algorithm developed here should be generic enough to extract diffuse structures in any hyper-spectral cube. Methods. We developed a new Gaussian decomposition algorithm named ROHSA based on a multi-resolution process from coarse to fine grid. ROHSA uses a regularized nonlinear least-square criterion to take into account the spatial coherence of the emission and the multiphase nature of the gas simultaneously. In order to obtain a solution with spatially smooth parameters, the optimization is performed on the whole data cube at once. The performances of ROHSA were tested on a synthetic observation computed from numerical simulations of thermally bi-stable turbulence. We apply ROHSA to a 21 cm observation of a region of high Galactic latitude from the GHIGLS survey and present our findings. Results. The evaluation of ROHSA on synthetic 21 cm observations shows that it is able to recover the multiphase nature of the HI. For each phase, the power spectra of the column density and centroid velocity are well recovered. More generally, this test reveals that a Gaussian decomposition of HI emission is able to recover physically meaningful information about the underlying three-dimensional fields (density, velocity, and temperature). The application on a real 21 cm observation of a field of high Galactic latitude produces a picture of the multiphase HI, with isolated, filamentary, and narrow (σ ~ 1−2 km s−1) structures, and broader (σ ~ 4−10 km s−1), diffuse, and space-filling components. The test-case field used here contains significant intermediate-velocity clouds that were well mapped out by the algorithm. As ROHSA is designed to extract spatially coherent components, it performs well at projecting out the noise. Conclusions. In this paper we introduce ROHSA, a new algorithm that performs a separation of diffuse sources in hyper-spectral data on the basis of a Gaussian decomposition. The algorithm makes no assumption about the nature of the sources, except that each one has a similar line width. The tests we made shows that ROHSA is well suited to decomposing complex 21 cm line emission of regions of high Galactic latitude, but its design is general enough that it could be applied to any hyper-spectral data type for which a Gaussian model is relevant.

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M. Küpers, Wendelin. "From the Anthropocene to an ‘Ecocene’ ―Eco-Phenomenological Perspectives on Embodied, Anthrodecentric Transformations towards Enlivening Practices of Organising Sustainably." Sustainability 12, no. 9 (May 1, 2020): 3633. http://dx.doi.org/10.3390/su12093633.

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The following paper discusses the contexts, conditions and implications of the so-called ‘Anthropocene’ (1). In particular, the following challenges the hyper-separation between nature and culture (2). Afterwards, possibilities for an anthro-decentric transformation are outlined (3). For this transformation-and following (eco) phenomenology-then the role of the body and embodiment, as well as a body-mediated turn towards an enlivening ‘ecocene’ is discussed (4). The article concludes with some implications and perspectives which are all related to a different kind of more sustainable organizing (5).

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Stephens, Tricia N. "Distinguishing Racism, Not Race, as a Risk Factor for Child Welfare Involvement: Reclaiming the Familial and Cultural Strengths in the Lived Experiences of Child Welfare-Affected Parents of Color." Genealogy 5, no. 1 (January 26, 2021): 11. http://dx.doi.org/10.3390/genealogy5010011.

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Child welfare-affected parents of color (CW-PaoC) are often described using language that is deficit-focused, their families depicted as fragile and living in a near constant state of crisis and need. This commentary challenges the stereotypes created by hyper-attention to these parents’ struggles and situates them, and their families, within the broader context of the American appetite for family separation, wherein specific types of families are targeted for scrutiny, intervention and regulation. The concept of fragility within families is dissected to illustrate the ways in which racism and classism demarcate certain families for separation. Excerpts from two separate interviews conducted with Black mothers in 2014 and 2020 are used to illustrate how the appetite for family separation is currently fed. Familial and cultural strengths that counteract the prevailing deficit-focused narrative of CW-PaoC, particularly Black parents, are discussed. This commentary ends with a call for the dissolution of the CW system in its current regulatory form and the rebuilding of family-centered supports that center familial strengths.

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Silverman, John D., Shenli Tang, Khee-Gan Lee, Tilman Hartwig, Andy Goulding, Michael A. Strauss, Malte Schramm, et al. "Dual Supermassive Black Holes at Close Separation Revealed by the Hyper Suprime-Cam Subaru Strategic Program." Astrophysical Journal 899, no. 2 (August 26, 2020): 154. http://dx.doi.org/10.3847/1538-4357/aba4a3.

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Sheng, Qi, Wendy Tian, and Colin D. Wood. "Hyper-Cross-Linked Polymer-Decorated Surfaces with Ultrahigh Efficiency for Oil/Water Emulsion Separation and Recovery." ACS Applied Materials & Interfaces 13, no. 33 (August 12, 2021): 39925–33. http://dx.doi.org/10.1021/acsami.1c11302.

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Gu, Jiarui, Pingping Shao, Lan Luo, Yizhou Wang, Tianxiang Zhao, Chunliang Yang, Peng Chen, and Fei Liu. "Microporous triazine-based ionic hyper-crosslinked polymers for efficient and selective separation of H2S/CH4/N2." Separation and Purification Technology 285 (March 2022): 120377. http://dx.doi.org/10.1016/j.seppur.2021.120377.

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Kozolupenko, Darya P. "Shereshevsky’s Case: A Reflection on the Peculiarities of Human Memory." Voprosy Filosofii, no. 11 (2021): 23–34. http://dx.doi.org/10.21146/0042-8744-2021-11-23-34.

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The article deals with the problem of hyper-memory and two main mechanisms of its development: the mechanism of the ultimate development of analogization, schematization and algorithmization and the mechanism of escape from reality to the sphere of the imaginary by rejecting logical generalization and increasing the imaginative component of thinking. Based on the understanding of the effectiveness of memory according to Korsakov, the author compares the features of mechanical memorization, characteristic of artificial devices and systems, and the cases of hyper-memory development in humans, especially highlighting the case of Shereshevsky as a case of the most pronounced and comprehensive hypermnesia. The article highlights the features of the memory of a phenomenal mnemonist distinguishing it from the memory of an ordinary person, and from the “memory” of external storage devices. The author analyzes the features of the mechanisms of information fixation and reproduction in the case of Shereshevsky, presented in the works of Luria and Leontiev, as well as the areas and features of the manifestation of phenomenal memory in other cases of “regional hyper-memory” (genius, hyperthymnesia, Savant syndrome). The author concludes that in the case of general hypermnesia, characteristic of Shereshevsky, the memorization procedure is associated with the obligatory “separation from reality” and the replacement of the plan of the real with the plan of the imaginary, but the condition for the possibility of such replacement is the maximum reduction of the “higher type” memory associated with logical operations and abstraction, as well as the rejection of the principle of arbitrariness of the sign. The author comes to the conclusion that the direction of development of human hyper-memory, characteristic of the case of Shereshevsky and based on imaginative-emotional perception, is directly opposite to the artificial type of memory mechanism.

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Liu, Pengfei, Hongyuan Huo, Li Guo, Pei Leng, and Long He. "Temperature/Emissivity Separation of Typical Grassland of Northwestern China Based on Hyper-CAM and Its Potential for Grassland Drought Monitoring." Remote Sensing 14, no. 19 (September 26, 2022): 4809. http://dx.doi.org/10.3390/rs14194809.

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Research on grassland monitoring based on temperature/emissivity separation based on hyperspectral thermal infrared (HTIR) remote sensing is rare. Based on the longwave TIR instrument (Hyper-CAM), this study designed two experiments to collect HTIR datasets, separate the temperature and emissivity of different vegetation of grassland, and analyze the relationship between the emissivity of vegetation and soil moisture content. First, we collected the HTIR remotely sensed dataset of different kinds of vegetation and used the temperature/emissivity separation algorithm to separate the temperature and emissivity of seven types of vegetation. The temperature and emissivity of these types of vegetation were separated. Then, the absorption characteristics of the emissivity spectral curves of each type of grass were analyzed. The distribution and differences of the temperature and specific emissivity in different parts of these seven grassland vegetation types were quantitatively analyzed, and the relationship between their changes and vegetation leaf moisture and vegetation health status was also analyzed. Second, to monitor the drought of grassland vegetation, a second experiment was designed to measure the changes in the emissivity under different soil water contents. This observation experiment took Artemisia frigida as the research object. From the results of the separation of the temperature and emissivity, we found that the emissivity of Artemisia frigida has significantly changed with the increase in the water content, and the emissivity showed an overall increasing trend. We also quantitatively analyzed the differences in the temperature and specific emissivity between Artemisia frigida and Artemisia subulata Nakai, both belonging to the genus Artemisia, under different water content conditions. The overall waveform characteristics and their similarities and differences at 850–1280 cm−1 were compared and analyzed. The experimental results shows that Hyper-CAM can effectively obtain the emissivity of various types of grassland vegetation as the absorption characteristics of grassland vegetation in the thermal infrared spectral region were quite notable, which shows the significant potential ability of identification and discrimination of different types of grassland vegetation.

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Smith, Tawnya. "The Trauma of Separation: Understanding How Music Education Interrupted My Relationship with the More-Than-Human World." Action, Criticism, and Theory for Music Education 21, no. 1 (March 2022): 172–94. http://dx.doi.org/10.22176/act21.1.172.

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I grew up immersed in the sounds of nature. However, throughout childhood, the ambient soundscape that once thrilled me was usurped by human-made sounds. I conducted an autoethnographic inquiry to seek the ways that my early and middle childhood music education diverted my attention from local soundscapes to a near-exclusive focus on anthropocentric sound. During early childhood, I shed my nature-centric musical identity to conform to a musical community that prioritized human-made sounds over the natural soundscape. In middle childhood, listening became an anxiety-ridden activity as hyper attention to human-made sounds became necessary to navigate childhood complexities and to function in my musical environments. Isolation and dissociation from the natural sounds that I valued as a young child resulted in my trauma of separation from the earth. Conclusions are contextualized so that music educators might draw connections between music and nature to avoid practices that perpetuate the trauma of separation with their students.

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Tsyurupa, M. P., and V. A. Davankov. "A New Exclusion Chromatographic Process: Separation of Inorganic Electrolytes on a Neutral Hyper-Cross-Linked Polystyrene Sorbent." Doklady Chemistry 398, no. 1-3 (September 2004): 184–86. http://dx.doi.org/10.1023/b:doch.0000041484.49321.c3.

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Balmaceda, Laura A., Angelos Vourlidas, Guillermo Stenborg, and Ryun-Young Kwon. "The Hyper-inflation Stage in the Coronal Mass Ejection Formation: A Missing Link That Connects Flares, Coronal Mass Ejections, and Shocks in the Low Corona." Astrophysical Journal 931, no. 2 (June 1, 2022): 141. http://dx.doi.org/10.3847/1538-4357/ac695c.

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Abstract We analyze the formation and three-dimensional (3D) evolution of two coronal mass ejections (CMEs) and their associated waves in the low corona via a detailed multi-viewpoint analysis of extreme-ultraviolet observations. We analyze the kinematics in the radial and lateral directions and identify three stages in the early evolution of the CME: (1) a hyper-inflation stage, when the CME laterally expands at speeds of ∼1000 km s−1, followed by (2) a shorter and slower expansion stage of a few minutes and ending with (3) a self-similar phase that carries the CME into the middle corona. The first two stages coincide with the impulsive phase of the accompanying flare, the formation and separation of an EUV wave from the CME, and the start of the metric type II radio burst. Our 3D analysis suggests that the hyper-inflation phase may be a crucial stage in the CME formation with wide-ranging implications for solar eruption research. It likely represents the formation stage of the magnetic structure that is eventually ejected into the corona, as the white-light CME. It appears to be driven by the injection of poloidal flux into the ejecting magnetic structure, which leads to the lateral (primarily) growth of the magnetic flux rope. The rapid growth results in the creation of EUV waves and eventually shocks at the CME flanks that are detected as metric type II radio bursts. In other words, the hyper-inflation stage in the early CME evolution may be the “missing” link between CMEs, flares, and coronal shocks.

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Maroulis, George, and Constantine Makris. "Static Dipole Polarizability and Hyperpolarizability of F2 from Density Functional Theory Calculations. Similarities and Dissimilarities with Conventional ab initio Results." Computing Letters 2, no. 3 (March 6, 2006): 131–38. http://dx.doi.org/10.1163/157404006778330825.

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We have calculated the bond-length dependence of the static dipole polarizability and hyperpolarizability of F2 relying on finite-field density functional calculations. At the internuclear separation of Re = 2.66816 a0 we obtain α/ e2a0 2Eh-1 = 8.73 (B3LYP) and 8.60 (B3PW91),α./ e2a0 2Eh-1 = 6.42 (B3LYP) and 6.32 (B3PW91), γ / e4a04Eh-3 = 535 (B3LYP) and 503 (B3PW91) with a large, flexible [9s6p4d1f] basis set. For all three properties we observe that both B3LYPand B3PW91 yield values above the more accurate CCSD(T) results: CCSD(T) < B3PW91 < B3LYP. The discrepancy between DFT and conventional ab initio methods is more pronounced for the anisotropy of the (hyper)polarizability.

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Park, Jongmin, KyuHan Kim, and Myungeun Seo. "Hyper-cross-linked polymers with controlled multiscale porosity via polymerization-induced microphase separation within high internal phase emulsion." Chemical Communications 54, no. 57 (2018): 7908–11. http://dx.doi.org/10.1039/c8cc03508c.

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Liu, Jinjin, Wenjie Duan, Jie Song, Xiuxiu Guo, Zhifang Wang, Xinlei Shi, Jiajie Liang, et al. "Self-Healing Hyper-Cross-Linked Metal–Organic Polyhedra (HCMOPs) Membranes with Antimicrobial Activity and Highly Selective Separation Properties." Journal of the American Chemical Society 141, no. 30 (July 9, 2019): 12064–70. http://dx.doi.org/10.1021/jacs.9b05155.

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Baimani, Nasim, Parviz Aberoomand Azar, Syed Waqif Husain, Homayon Ahmad Panahi, and Ali Mehramizi. "Providing hyper-branched dendrimer conjugated with β-cyclodextrin based on magnetic nanoparticles for the separation of methylprednisolone acetate." Journal of Chromatography A 1571 (October 2018): 38–46. http://dx.doi.org/10.1016/j.chroma.2018.08.005.

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Singh, Suraj Kumar, Shruti Kanga, and Sudhanshu. "Assessment of Geospatial Approaches Used for Classification of Crops." International Journal of Mathematical, Engineering and Management Sciences 3, no. 3 (September 1, 2018): 271–79. http://dx.doi.org/10.33889/ijmems.2018.3.3-019.

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Harvests distinguishing proof from remotely detected pictures is fundamental because of utilization of remote identifying images as a contribution for rural and monetary arranging by the government and private offices. Accessible satellite sensors like IRS AWIFS, LISS, SPOT 5 and furthermore LANDSAT, MODIS are great wellsprings of multispectral information with various spatial resolutions and Hyperion, Hy-Map, AVIRIS are great wellsprings of hyper-Spectral. The technique for current research is choice of satellite information; utilization of appropriate strategy for arrangement and checking the accuracy. From most recent four decades different specialists have been taking a shot at these issues up to some degree yet at the same time a few difficulties are there like numerous products distinguishing proof, separation of harvests of the same sort this paper gives a general survey of the work done in this vital zone. Multispectral and hyper-spectral images contain spectral data about the crops. Good delicate registering and examination aptitudes are required to order and distinguish the class of enthusiasm from that datasets. Various specialists have worked with supervised and unsupervised arrangement alongside hard classifiers and also delicate processing strategies like fuzzy C mean, support vector machine and they have been discovered distinctive outcomes with various datasets.

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Murphy, Cherri. "Recognizing a fuller, more expansive God in unassuming places and people." Review & Expositor 115, no. 3 (August 2018): 386–97. http://dx.doi.org/10.1177/0034637318791546.

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We live in a society that promotes ideologies of hyper-individualism that breed crude and greedy competition interwoven with myths of scarcity of resources. These frameworks create a type of traumatic epidemic of separation. Separation denies the inherent value of being in communion with Spirit. The separation between races, religions, gender, sexual orientations, nations, and interest groups (even effects caused by man-made disasters) calls for a different way of thinking in order to heal isolation and discord: a different way of thinking that endorses greater intimate relationships emphasizing a mutual reliance and the interconnectedness of all life while denying the false narratives that prioritize self-interests. At the very heart of various contemporary social movements is a revolutionary way of thinking and behaving that lifts up narratives of an interrelational God. God as Spirit is relational as God works with, through, and for us in each and everything.1 This interconnection exists as a communion of love—love as an essence of God. This article will address the need to cultivate encounters with God as Spirit through public worship and ritual protests. It will explore a vision for a future church, proposing aesthetic practices that emphasize the intimate, dynamic, and fluid movement of a God we have failed to remember, see, or imagine—a God that functions as the emancipator of all of humanity.

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Gao, Lyuzhou, Yanfei Zhong, Liqin Cao, Jiani He, and Xuhe Zhu. "A Practical Temperature and Emissivity Separation Framework With Reanalysis Atmospheric Profiles for Hyper-Cam Airborne Thermal Infrared Hyperspectral Imagery." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 15 (2022): 687–99. http://dx.doi.org/10.1109/jstars.2021.3136194.

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Wang, J., Y. B. Zhong, Y. Fautrelle, T. X. Zheng, F. Li, Z. M. Ren, and F. Debray. "Influence of the static high magnetic field on the liquid–liquid phase separation during solidifying the hyper-monotectic alloys." Applied Physics A 112, no. 4 (December 12, 2012): 1027–31. http://dx.doi.org/10.1007/s00339-012-7470-9.

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Ma, Lianjia, Hao Luo, Jun Dai, and Peter W. Carr. "Development of acid stable, hyper-crosslinked, silica-based reversed-phase liquid chromatography supports for the separation of organic bases." Journal of Chromatography A 1114, no. 1 (May 2006): 21–28. http://dx.doi.org/10.1016/j.chroma.2006.02.017.

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Calcagnì, Antonio, Livio Finos, Gianmarco Altoé, and Massimiliano Pastore. "A Maximum Entropy Procedure to Solve Likelihood Equations." Entropy 21, no. 6 (June 15, 2019): 596. http://dx.doi.org/10.3390/e21060596.

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In this article, we provide initial findings regarding the problem of solving likelihood equations by means of a maximum entropy (ME) approach. Unlike standard procedures that require equating the score function of the maximum likelihood problem at zero, we propose an alternative strategy where the score is instead used as an external informative constraint to the maximization of the convex Shannon’s entropy function. The problem involves the reparameterization of the score parameters as expected values of discrete probability distributions where probabilities need to be estimated. This leads to a simpler situation where parameters are searched in smaller (hyper) simplex space. We assessed our proposal by means of empirical case studies and a simulation study, the latter involving the most critical case of logistic regression under data separation. The results suggested that the maximum entropy reformulation of the score problem solves the likelihood equation problem. Similarly, when maximum likelihood estimation is difficult, as is the case of logistic regression under separation, the maximum entropy proposal achieved results (numerically) comparable to those obtained by the Firth’s bias-corrected approach. Overall, these first findings reveal that a maximum entropy solution can be considered as an alternative technique to solve the likelihood equation.

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