Увійти

Готові списки джерел за темами / CO₂ separation / Статті в журналах

Статті в журналах з теми "CO₂ separation"

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: CO₂ separation.

Автор: Grafiati

Опубліковано: 6 липня 2024

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-50 статей у журналах для дослідження на тему "CO₂ separation".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.

1

Yuan, Lixia, Ji Yang, Fujun Du, Xunchuan Liu, Yang Su, Qing-Zeng Yan, Xuepeng Chen, et al. "On the Spatial Distribution of ¹³CO Structures within ¹²CO Molecular Clouds." Astrophysical Journal 944, no. 1 (February 1, 2023): 91. http://dx.doi.org/10.3847/1538-4357/acac26.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract We look into the 2851 12CO molecular clouds harboring 13CO structures to reveal the distribution of the projected angular separations and radial velocity separations between their internal 13CO structures. The projected angular separations are determined using the minimal spanning tree algorithm. We find that ∼50% of the angular separations fall in a narrow range of ∼3′–7′ with a median of ∼5′, and the corresponding radial velocity separations mainly range from ∼0.3 to 2.5 km s−1. The mean and standard deviation of the angular separations of the internal 13CO structures within 12CO clouds appear to be universal, independent of the 12CO cloud angular areas and the counts of their internal 13CO structures. We also reveal a scaling relation between the 12CO cloud angular area and its harbored 13CO structure count. These results suggest there is a preferred angular separation between 13CO structures in these 12CO clouds, considering the distance effects. According to that, we propose an alternative picture for the assembly and destruction of molecular clouds: there is a fundamental separation for the internal structures of molecular clouds, the build-up and destruction of molecular clouds proceeds under this fundamental unit.

2

Dutta, N. N., and G. S. Patil. "Developments in CO separation." Gas Separation & Purification 9, no. 4 (December 1995): 277–83. http://dx.doi.org/10.1016/0950-4214(95)00011-y.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Dutta, N. N., and G. S. Patil. "Developments in CO separation." Fuel and Energy Abstracts 37, no. 3 (May 1996): 182. http://dx.doi.org/10.1016/0140-6701(96)88524-9.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Zhang, Yingying, Xuzhao Yang, Jingli Han, Junfeng Tian, Ting Zhang, Yakun Li, Jiangqiang Zhang, Yuxin Shi, and Jingjing Zhang. "Screening of Pure ILs and DESs for CO2 Separation, N2O Separation, and H2S Separation Processes." International Journal of Chemical Engineering 2023 (February 18, 2023): 1–20. http://dx.doi.org/10.1155/2023/8691957.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Ionic liquids (ILs) are proposed as potential “green” solvents with remarkable properties. Deep eutectic solvents (DESs) are a new type of ILs with additional properties, such as higher biodegradability and a lower price. ILs and DESs are “green” absorbents for various gas separations, such as CO2/N2, CO2/H2/CO, H2S/CH4, and N2O/N2. Due to their large number, the screening of ILs is crucial. Although ILs with high absorption capacities were screened using gas solubility and selectivity, it is important to consider the energy and solvents used in the process. In this paper, the absorbent amount and the energy consumption were used for screening absorbents for various gas separation processes. The results reveal that physical IL [Bmim][DCA] and chemical IL [Eeim][Ac] are screened for CO2/N2 and CO2/H2/CO separation, physical IL [Omim][PF6] for H2S/CH4 separation, and physical IL [P66614][eFAP] for NO/N2 separation. The screened ILs offer some advantages over commercial absorbents in terms of lower energy consumption or amount.

5

Al Ghour, Samer, and Enas Moghrabi. "Co-Compact Separation Axioms and Slight Co-Continuity." Symmetry 12, no. 10 (September 29, 2020): 1614. http://dx.doi.org/10.3390/sym12101614.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Via co-compact open sets we introduce co-T2 as a new topological property. We show that this class of topological spaces strictly contains the class of Hausdorff topological spaces. Using compact sets, we characterize co-T2 which forms a symmetry. We show that co-T2 propoerty is preserved by continuous closed injective functions. We show that a closed subspace of a co-T2 topological space is co-T2. We introduce co-regularity as a weaker form of regularity, s-regularity as a stronger form of regularity and co-normality as a weaker form of normality. We obtain several characterizations, implications, and examples regarding co-regularity, s-regularity and co-normality. Moreover, we give several preservation theorems under slightly coc-continuous functions.

6

Abou-El-Wafa, Moustafa H. M., Hesham Mansour, and G. A. Noubi. "High-performance liquid chromatography of some bis(ethylenediamine)cobalt(III) complexes." Canadian Journal of Chemistry 64, no. 10 (October 1, 1986): 1953–56. http://dx.doi.org/10.1139/v86-322.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Chromatographic separation of the complexes cis- and trans-Co(en)2(S2O3)2−, cis- and trans-Co(en)2(SO3)2−, cis- and trans-Co(en)2Cl2+,cis-Co(en)2(N3)2+, cis-Co(en)2(SO3)(N3)0, Co(en)2(S2O3)(N3)0, and Co(en)2(S2O3)(OH2)+ (en = ethylenediamine) was carried out by high-performance liquid chromatography. Good separations were achieved on a μ-Bondapak C18 reversed-phase octadecyldimethylsilane (ODS) column using tributylmethylammonium cations and octylsulphonate anions. The efficiency and speed of the separations were superior to those obtained on a Partisil SCX ion exchange column.

7

Kazama, Shingo. "CO₂ Separation Membrane." MEMBRANE 31, no. 1 (2006): 6–7. http://dx.doi.org/10.5360/membrane.31.6.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Liu, Bo-yu, You-jin Gong, Xiao-nan Wu, Qiang Liu, Wei Li, Shun-shun Xiong, Sheng Hu, and Xiao-lin Wang. "Enhanced xenon adsorption and separation with an anionic indium–organic framework by ion exchange with Co2+." RSC Advances 7, no. 87 (2017): 55012–19. http://dx.doi.org/10.1039/c7ra10538j.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Massoud Samba, Mohammed. "A Novel Demulsifier Used to Separate Water from the Emulsion." Journal of Engineering Research [TJER] 20, no. 1 (January 24, 2024): 85–91. http://dx.doi.org/10.53540/tjer.vol20iss1pp85-91.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Recently, there has been interest in using chemical demulsifiers to separate the water phase from crude oil emulsion. Separating the water from the emulsion is crucial before transportation and refining to avoid complications from the water phase. This research introduces a novel chemical demulsifier, Poly (AAc-co-AAm) hydrogel, synthesised at Sebha University. Its characteristics were examined using the Fourier Transform Infrared Spectroscopy test (FTIR). Its efficiency was tested against commercial demulsifiers (Emulsotron and Dmo-66813) used in some Libyan oil fields. The chosen concentrations for Poly (AAc-co-AAm) were 0.5%, 1%, and 2%, while commercial demulsifiers were tested based on the standard method in the oil field. The results revealed that Poly (AAc-co-AAm) outperformed the commercial demulsifiers in terms of separation time, volume, and quality. Notably, the 0.5% concentration of Poly (AAc-co-AAm) provided the best separation results.

10

Massoud Samba, Mohammed. "A Novel Demulsifier Used to Separate Water from the Emulsion." Journal of Engineering Research [TJER] 20, no. 1 (October 19, 2023): 85–91. http://dx.doi.org/10.53540/tjer.vol20iss2pp85-91.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Recently, there has been interest in using chemical demulsifiers to separate the water phase from crude oil emulsion. Separating the water from the emulsion is crucial before transportation and refining to avoid complications from the water phase. This research introduces a novel chemical demulsifier, Poly (AAc-co-AAm) hydrogel, synthesised at Sebha University. Its characteristics were examined using the Fourier Transform Infrared Spectroscopy test (FTIR). Its efficiency was tested against commercial demulsifiers (Emulsotron and Dmo-66813) used in some Libyan oil fields. The chosen concentrations for Poly (AAc-co-AAm) were 0.5%, 1%, and 2%, while commercial demulsifiers were tested based on the standard method in the oil field. The results revealed that Poly (AAc-co-AAm) outperformed the commercial demulsifiers in terms of separation time, volume, and quality. Notably, the 0.5% concentration of Poly (AAc-co-AAm) provided the best separation results.

11

Baranov, Igor Y., and Andrey V. Koptev. "Mode-Locked CO Laser for Isotope Separation of Uranium Employing Condensation Repression." Advances in Optical Technologies 2010 (December 16, 2010): 1–6. http://dx.doi.org/10.1155/2010/693530.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

In the present work, we have suggested a technical solution of a CO laser facility for industrial separation of uranium used in the production of fuel for nuclear power plants. There has been used a method of laser isotope separation of uranium, employing condensation repression in a free jet. The laser operation with nanosecond pulse irradiation can provide acceptable efficiency in the separating unit and the high effective coefficient of the laser with the wavelength of 5.3 μm. Receiving a uniform RF discharge under medium pressure and high Mach numbers in the gas stream solves the problem of an electron beam and cryogenic cooler of CO lasers. The laser active medium is being cooled while it is expanding in the nozzle; a low-current RF discharge is similar to a non-self-sustained discharge. In the present work, we have developed a calculation model of optimization and have defined the parameters of a mode-locked CO laser with an RF discharge in the supersonic stream. The CO laser average power of 3 kW is sufficient for efficient industrial isotope separation of uranium at one facility.

12

Poudel, Jeeban, Ja Choi, and Sea Oh. "Process Design Characteristics of Syngas (CO/H2) Separation Using Composite Membrane." Sustainability 11, no. 3 (January 29, 2019): 703. http://dx.doi.org/10.3390/su11030703.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The effectiveness of gas separation membranes and their application is continually growing owing to its simpler separation methods. In addition, their application is increasing for the separation of syngas (CO and H2) which utilizes cryogenic temperature during separation. Polymers are widely used as membrane material for performing the separation of various gaseous mixtures due to their attractive perm-selective properties and high processability. This study, therefore, aims to investigate the process design characteristics of syngas separation utilizing polyamide composite membrane with polyimide support. Moreover, characteristics of CO/H2 separation were investigated by varying inlet gas flow rates, stage cut, inlet gas pressures, and membrane module temperature. Beneficial impact in CO and H2 purity were obtained on increasing the flow rate with no significant effect of increasing membrane module temperature and approximately 97% pure CO was obtained from the third stage of the multi-stage membrane system.

13

Duan, Shu Hong, Firoz A. Chowdhury, Teruhiko Kai, and Shingo Kazama. "Hydroxy-Functionalized PAMAM Dendrimer as a CO<sub>2</sub>-Selective Molecular Gate for CO<sub>2</sub> Membrane Separation." Key Engineering Materials 920 (May 16, 2022): 22–28. http://dx.doi.org/10.4028/p-5pl7kk.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Two hydroxy-functionalized PAMAM Dendrimers (3OH-PAMAM and 4OH-PAMAM) were developed as immobilized liquid membranes (ILMs) to separate CO2 from a mixture of CO2 and N2. The hydroxy-functionalized PAMAM demonstrated excellent properties of CO2-selective separative material for CO2 membrane separation. The hydroxy-functionalized PAMAM dendrimers displayed greater water sorption and more CO2 separation properties than that of conventional PAMAM without hydroxy groups. The resulting ILMs of 4OH-PAMAM showed the highest CO2 over N2 selectivity of 7000 and above with CO2 permeance of 1.1×10−11 m3 (STP) m−2 s−1 Pa−1 (1.5 GPU, 1 GPU = 7.5 × 10−12 m3 (STP) m−2 s−1 Pa−1), with a membrane thickness of 100µm (CO2 permeability 147 Barrers), at 9.7 kPa CO2 partial under 130 kPa feed pressure with 80% RH at 40 °C. For the ILMs of dendrimers at over 60%RH, their PCO2 – α plots exceeded the upper bound line by Roberson in 2008 and that is a potential for CO2 separation from the gas mixture.

14

Li, Jing, Xin Zhang, Cong Wang, Jingjiang Qiu, Yudong Zhang, Xiang Zhang, and Zonhan Wei. "Study of magnetic microspheres screening in microfluidic chip based on co-simulation method." AIP Advances 13, no. 2 (February 1, 2023): 025136. http://dx.doi.org/10.1063/5.0135616.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Magnetic microspheres have been widely applied in DNA determination, bacterial analysis, and information coding. Magnetic microspheres screening is important, as the sizes of the obtained microspheres vary with different manufacturing methods, causing considerable impact on subsequent applications. In this paper, a co-simulation method based on MATLAB and COMSOL was presented to design the magnetic microfluidic chip, which was utilized to separate the magnetic micro-spheres of different sizes efficiently. In order to complete the separation and screening of magnetic microspheres in the microchannel, a movable permanent magnet device was adopted to adjust the magnetic interactions in the separation area, allowing the microspheres to deviate from different distances. A batch analysis of chip model was performed with this method, and an optimal design that showed high efficiency in separating microspheres of different sizes and magnetic properties was also revealed. Moreover, detailed analysis focused on the influence of flow rate, magnetism and arrangement of magnets on the separation effect of the chip. The presented simulation method will not only shorten the chip design time but also have a better understanding of the factors that can affect the separation of particles. This study has shown its potential in the computer-aided design of microfluidic chips for magnetic microspheres screening.

15

NTT Basic Research Laboratories. "COMPOSITIONAL SEPARATION IN Co-Cr THIN FILMS." Journal of the Magnetics Society of Japan 18, S_2_PMRC_94_2 (1994): S2_8–9. http://dx.doi.org/10.3379/jmsjmag.18.s2_8.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

16

NTT Corporation. "COMPOSITIONAL SEPARATION IN Co-Cr THIN FILMS." Journal of the Magnetics Society of Japan 21, S_3_PMRC_97_3 (1997): S3_34–34. http://dx.doi.org/10.3379/jmsjmag.21.s3_34.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Kuan-Chieh Yen and Yunxin Zhao. "Adaptive co-channel speech separation and recognition." IEEE Transactions on Speech and Audio Processing 7, no. 2 (March 1999): 138–51. http://dx.doi.org/10.1109/89.748119.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Qiu, Jing Hui. "Strong Minkowski Separation and Co-Drop Property." Acta Mathematica Sinica, English Series 23, no. 12 (September 13, 2007): 2295–302. http://dx.doi.org/10.1007/s10114-007-0980-2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Jantunen, Niklas, Sami Virolainen, and Tuomo Sainio. "Direct Production of Ni–Co–Mn Mixtures for Cathode Precursors from Cobalt-Rich Lithium-Ion Battery Leachates by Solvent Extraction." Metals 12, no. 9 (August 30, 2022): 1445. http://dx.doi.org/10.3390/met12091445.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

A novel solvent extraction scheme was developed for the processing of Co-rich lithium-ion battery (LIB) leachate to a Ni–Co–Mn (NCM) sulfate mixture that can be directly used in the precursor synthesis of LIB cathodes. Conventional hydrometallurgical recycling of spent LIBs usually aims at separation of Li, Ni, Co, and Mn into pure fractions, which is simplified here. Operating pH and the number of extraction stages for each separation were evaluated from batch equilibrium experiments. Two continuous countercurrent extractions with bis(2-ethylhexyl) hydrogen phosphate (D2EHPA) and one with Cyanex 272 were studied in bench-scale mixer-settler equipment, and a Ni–Co–Mn solution with n(Ni):n(Co) = 14.16 and n(Ni):n(Mn) = 8.06 was obtained. The Ni:Co:Mn molar ratio in the NCM mixture can be adjusted to, for example, 8:1:1 using a Co-rich raffinate from the same process, and no additional transition metal salts are required for tuning the composition. Stripping raffinate containing 102.7 g L−1 Co at 99.8% relative purity was obtained from Cyanex 272 extraction. The main benefit of the process concept is that the solvent extraction separations can be operated with less stringent requirements than when producing pure metal salts.

20

Zhong, Shi-an, Chun-shan Zhou, Yang-xi Ou, and Ben-cheng Cheng. "Upgrade and separation of Co from solution with low-grade Co." Journal of Central South University of Technology 8, no. 4 (December 2001): 249–51. http://dx.doi.org/10.1007/s11771-001-0064-x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

21

GOODWIN, R., J. D. LIPSITZ, T. F. CHAPMAN, S. MANNUZZA, and A. J. FYER. "Obsessive–compulsive disorder and separation anxiety co-morbidity in early onset panic disorder." Psychological Medicine 31, no. 7 (October 2001): 1307–10. http://dx.doi.org/10.1017/s0033291701004366.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Background. This study was undertaken to examine the relationship between anxiety co-morbidity and age of onset of panic disorder.Methods. Age of onset of panic disorder and co-morbid anxiety disorders were assessed among 201 panic disorder probands with childhood separation anxiety disorder, obsessive–compulsive disorder, obsessive–compulsive symptoms, social phobia and specific phobia as part of a clinician-administered lifetime diagnostic interview. A generalized linear model was used to test the association between each anxiety co-morbidity and age of panic disorder onset while simultaneously controlling for the potential confounding effects of sociodemographic characteristics and other psychiatric co-morbidity.Results. Earlier onset of panic disorder was found in patients with co-morbid obsessive–compulsive disorder, obsessive–compulsive symptoms and separation anxiety disorder, but not simple phobia or social phobia. Patients with both childhood separation anxiety disorder and obsessive–compulsive disorder had an even earlier panic onset than those with either childhood separation anxiety disorder or obsessive–compulsive disorder.Conclusions. The association between anxiety co-morbidity and earlier onset of panic disorder is specific to obsessive–compulsive disorder and childhood separation anxiety disorder.

22

Zahlan, Hala, Waseem Sharaf Saeed, Saad Alqahtani, and Taieb Aouak. "Separation of Benzene/Cyclohexane Mixtures by Pervaporation Using Poly (Ethylene-Co-Vinylalcohol) and Carbon Nanotube-Filled Poly (Vinyl Alcohol-Co-Ethylene) Membranes." Separations 7, no. 4 (November 30, 2020): 68. http://dx.doi.org/10.3390/separations7040068.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Poly(ethylene-co-vinylalcohol) (E-VOH) and carbon nanotube-filled poly (vinyl alcohol-co-ethylene) (E-VOH/CNT) were used as membranes to separate benzene/cyclohexane mixtures by pervaporation technique. To reach this goal, E-VOH and E-VOH/CNT membranes were prepared by solvent casting method and characterized by differential scanning calorimetry (DSC), thermogravimetry analysis (TGA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The swelling tests were used to study the mass transfer of the benzene/cyclohexane mixture and their pure components. The separation by pervaporation process was carried out at 25 °C in which the effect of CNTs incorporated into E-VOH matrix and the initial concentration of benzene in the feed on the permeate flux, j, and separation factor, β, performance was investigated. The results obtained were very promising, in which the integration of CNTs through E-VOH chains increased the absorption area and raised the flux to 740 g/m2∙h. The separation factor increased to 9.03 and the pervaporation separation reached an index of 5942.2 g/m2∙h for the azeotropic mixture during 3 h of the separation process. In contrast, for the unfilled E-VOH membrane, it was found that these parameters were a rise of 280 g∙m−2∙h−1, separation factor of 12.90 and pervaporation separation index of 3332.0 g/m2∙h, under the same conditions. Likewise, the calculation of the performance of the E-VOH/CNT membrane with regard to that of the unfilled membrane indicated 2.64 for the total flux and 0.70 for the separation factor. It was also revealed that the best compromise of the filled membrane in terms of total cumulative flux and separation factor is obtained for the feed containing the azeotropic mixture.

23

Xu, Chun-Gang, and Xiao-Sen Li. "Research progress of hydrate-based CO2separation and capture from gas mixtures." RSC Adv. 4, no. 35 (2014): 18301–16. http://dx.doi.org/10.1039/c4ra00611a.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Hydrate-based CO₂separation and capture from gas mixtures containing CO₂has gained growing attention as a new technology for gas separation, and it is of significance for reducing anthropogenic CO₂emissions.

24

Phaneuf, R. J., and P. A. Bennett. "LEEM Studies of Phase Separations and Surface Depletion of Co and Ni on Si(111)." Surface Review and Letters 05, no. 06 (December 1998): 1179–88. http://dx.doi.org/10.1142/s0218625x98001511.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Low energy electron microscopy images of Si(111) surfaces during sub monolayer deposition of Co or Ni at temperatures near 700°C reveal a phase separation into a disordered "ring cluster" phase and the ordered 7 × 7 reconstruction. For Co/Si(111) we find that temperature-driven phase separations at a fixed dose are reversible and occur at a fixed surface coverage. The shape of the phase boundary reveals a repulsive interaction between Co-containing ring clusters in the disordered phase. For Ni/Si(111), dissolution into the bulk prevents reversible separations between surface phases. At coverages close to 1/7 ML an ordered close-packed [Formula: see text] ring cluster phase forms for Co/Si(111), but not for Ni/Si(111). The [Formula: see text] phase disappears irreversibly on heating, due to the nucleation and growth of stable silicide islands.

25

Nandi, Shyamapada, Jens Rother, Debanjan Chakraborty, Rahul Maity, Ulrike Werner-Zwanziger, and Ramanathan Vaidhyanathan. "Exceptionally stable Bakelite-type polymers for efficient pre-combustion CO2capture and H2purification." Journal of Materials Chemistry A 5, no. 18 (2017): 8431–39. http://dx.doi.org/10.1039/c7ta01979c.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Pre-combustion CO₂capture enables cleaner energy production from fossils. This involves separation of CO₂from high pressure CO₂/H₂mixtures. Here we show high working capacity for such separation from Bakelite-type porous polymers.

26

Nagase, Takeshi. "Microstructure of Co-Cr-Fe-Mn-Ni-Cu and Co-Cr-Fe-Mn-Ni-Ag High Entropy Alloys with Liquid Phase Separation." Materials Science Forum 941 (December 2018): 1238–41. http://dx.doi.org/10.4028/www.scientific.net/msf.941.1238.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Liquid phase separation is a common phenomenon observed in various types of condensed matter, including metals. The microstructure of Co-Cr-Mn-Fe-Ni-Cu and Co-Cr-Fe-Mn-Ni-Ag high entropy alloys (HEAs) with liquid phase separation was investigated. Dual fcc phases were observed in CoCrFeMnNiAg, CoCrFeMnNiCu, and CoCrFeMnNiCu2HEAs. A macroscopically phase separated structure formed via liquid phase separation was observed in CoCrFeMnNiAg HEA, and conventional dendritic structures were observed in CoCrFeMnNiCu and CoCrFeMnNiCu2HEAs.

27

Yang, Hailun, Ling Yuan, Menglei Yuan, and Pengge Ning. "Insight into the Mechanism of Cobalt-Nickel Separation Using DFT Calculations on Ethylenediamine-Modified Silica Gel." Materials 16, no. 9 (April 28, 2023): 3445. http://dx.doi.org/10.3390/ma16093445.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The separation of Co(II) and Ni(II) from leaching solution is gaining interest because Co(II) and Ni(II) are increasingly used in emerging strategic areas, such as power batteries. Herein, the surface of silica gel is functionalized with 1,2-ethylenediamine and used for the separation of Co(II) and Ni(II). The Co(II) removal efficiency of the modified silica is 80.2%, with a 4-fold improvement in the separation factor. The geometry, frequency, and electrostatic potential of the ethylenediamine modified silica gel (en/SG) are calculated. The corresponding properties of M2+ (M-Co, Ni) adsorbed on en/SG in an aqueous solution are simulated and analyzed. The results show that ethylenediamine tends to form [Men(H2O)4]2+ after binding to M2+, and the binding ability of Co(II) to ethylenediamine is stronger. Besides, the thermodynamic calculations show that en/SG has a more negative Gibbs free energy when absorbing Co(II) in aqueous solution, so en/SG is more inclined to bind with Co(II) preferentially. It is the difference in complexation ability between Ni, Co, and ethylenediamine that enlarges the difference in the original physical adsorption, thus strengthening the separation performance. This work will provide guidance for a rational design of high-performance nickel-cobalt adsorption materials.

28

Song, Jinhyeuk, Jaekyeong Jang, Taehoon Kim, and Younghak Cho. "Particle Separation in a Microchannel with a T-Shaped Cross-Section Using Co-Flow of Newtonian and Viscoelastic Fluids." Micromachines 14, no. 10 (September 28, 2023): 1863. http://dx.doi.org/10.3390/mi14101863.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

In this study, we investigated the particle separation phenomenon in a microchannel with a T-shaped cross-section, a unique design detailed in our previous study. Utilizing a co-flow system within this T-shaped microchannel, we examined two types of flow configuration: one where a Newtonian fluid served as the inner fluid and a viscoelastic fluid as the outer fluid (Newtonian/viscoelastic), and another where both the inner and outer fluids were Newtonian fluids (Newtonian/Newtonian). We introduced a mixture of three differently sized particles into the microchannel through the outer fluid and observed that the co-flow of Newtonian/viscoelastic fluids effectively separated particles based on their size compared with Newtonian/Newtonian fluids. In this context, we evaluated and compared the particle separation efficiency, recovery rate, and enrichment factor across both co-flow configurations. The Newtonian/viscoelastic co-flow system demonstrated a superior efficiency and recovery ratio when compared with the Newtonian/Newtonian system. Additionally, we assessed the influence of the flow rate ratio between the inner and outer fluids on particle separation within each co-flow system. Our results indicated that increasing the flow rate ratio enhanced the separation efficiency, particularly in the Newtonian/viscoelastic co-flow configuration. Consequently, this study substantiates the potential of utilizing a Newtonian/viscoelastic co-flow system in a T-shaped straight microchannel for the simultaneous separation of three differently sized particles.

29

Liu, Zhen, Cheng Liu, Longfei Li, Wei Qin, and Airong Xu. "CO 2 separation by supported ionic liquid membranes and prediction of separation performance." International Journal of Greenhouse Gas Control 53 (October 2016): 79–84. http://dx.doi.org/10.1016/j.ijggc.2016.07.041.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Sato, M., G. W. Qin, K. Oikawa, S. Okamoto, O. Kitakami, and Y. Shimada. "Magnetic Anisotropy and Phase Separation of Co-Mo and Co-W Films." Journal of the Magnetics Society of Japan 28, no. 3 (2004): 245–48. http://dx.doi.org/10.3379/jmsjmag.28.245.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Oikawa, K., G. W. Qin, O. Kitakami, Y. Shimada, K. Fukamichi, and K. Ishida. "Magnetically induced two-phase separation in Co–Ge and Co–Si systems." Journal of Magnetism and Magnetic Materials 239, no. 1-3 (February 2002): 409–11. http://dx.doi.org/10.1016/s0304-8853(01)00638-2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Urbanus, Johan, C. P. Mark Roelands, Dirk Verdoes, Peter J. Jansens, and Joop H. ter Horst. "Co-Crystallization as a Separation Technology: Controlling Product Concentrations by Co-Crystals." Crystal Growth & Design 10, no. 3 (March 3, 2010): 1171–79. http://dx.doi.org/10.1021/cg9010778.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

33

Kosinov, Nikolay, Clement Auffret, Canan Gücüyener, Bartłomiej M. Szyja, Jorge Gascon, Freek Kapteijn, and Emiel J. M. Hensen. "High flux high-silica SSZ-13 membrane for CO2 separation." J. Mater. Chem. A 2, no. 32 (2014): 13083–92. http://dx.doi.org/10.1039/c4ta02744b.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Novel high-silica SSZ-13 zeolite membranes with excellent performance in CO₂/N₂ and CO₂/CH₄ separation were reproducibly synthesized. Being hydrothermally stable, these membranes are very promising candidates for separation of CO₂ from hot and humid flue gas streams.

34

Maeda, Y., and K. Takei. "Compositional Separation in Co-Cr Based Alloy Films." Journal of the Magnetics Society of Japan 16, no. 2 (1992): 87–90. http://dx.doi.org/10.3379/jmsjmag.16.87.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Rogers, David J., Yasushi Maeda, and Koji Takei. "Compositional separation in Co‐Mn magnetic thin films." Journal of Applied Physics 78, no. 9 (November 1995): 5842–44. http://dx.doi.org/10.1063/1.359654.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Maeda, Y., and K. Takei. "Compositional Separation in Co-Cr Based Alloy Films." IEEE Translation Journal on Magnetics in Japan 7, no. 12 (December 1992): 919–23. http://dx.doi.org/10.1109/tjmj.1992.4565537.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Robinson, Margaret. "Comment on 'Promoting co-operative parenting after separation'." Journal of Family Therapy 15, no. 3 (August 1993): 263–71. http://dx.doi.org/10.1111/j.1467-6427.1993.00758.x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Cacciatore, Mario, and Gert Due Billing. "Isotope separation by V-V pumping in CO." Chemical Physics Letters 121, no. 1-2 (November 1985): 99–105. http://dx.doi.org/10.1016/0009-2614(85)87163-3.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

39

Han, J. H., N. Mattern, I. Kaban, D. Holland-Moritz, J. Bednarĉik, R. Nowak, N. Sobczak, D. H. Kim, and J. Eckert. "Phase separation in ternary Co–Gd–Ti liquids." Journal of Physics: Condensed Matter 25, no. 24 (May 29, 2013): 245104. http://dx.doi.org/10.1088/0953-8984/25/24/245104.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Nair, L. V., and Z. R. Turel. "Substoichiometric separation of Co(II) using 3,4-diaminobenzophenone." Journal of Radioanalytical and Nuclear Chemistry 229, no. 1-2 (March 1998): 199–202. http://dx.doi.org/10.1007/bf02389476.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Jegede, Oluwatoyin E., Robert F. Cochrane, and Andrew M. Mullis. "Metastable monotectic phase separation in Co–Cu alloys." Journal of Materials Science 53, no. 16 (May 15, 2018): 11749–64. http://dx.doi.org/10.1007/s10853-018-2417-y.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Armstrong, Shannon R., Grant T. Offord, Donald R. Paul, Benny D. Freeman, Anne Hiltner, and Eric Baer. "Co-extruded polymeric films for gas separation membranes." Journal of Applied Polymer Science 131, no. 2 (August 2, 2013): n/a. http://dx.doi.org/10.1002/app.39765.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

43

Maeda, Yasushi. "Compositional separation in Co?Cr based alloy films." Advanced Materials 5, no. 3 (March 1993): 210–11. http://dx.doi.org/10.1002/adma.19930050311.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Hao, Gui Yang, Jian Ying Zang, Lin Zhu, Yu Zhi Guo, and Bo Li Liu. "Synthesis, separation and biodistribution of99mTc-CO-MIBI complex." Journal of Labelled Compounds and Radiopharmaceuticals 47, no. 8 (July 2004): 513–21. http://dx.doi.org/10.1002/jlcr.839.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

45

Hou, Xing Wu, Yu Min Wu, Ding Guo Huang, Yan Yang Gao, Jian Guo Liao, and Ning Bo Li. "Study on Recovering Iron from Shandong Red Mud Based on Gas Reduction Reaction." Advanced Materials Research 1092-1093 (March 2015): 1041–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1092-1093.1041.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Based on Shandong Renping Bayer red mud as the raw material, analyzing its basic characteristics, the result is that the content of total iron in red mud is 29.55%. Gas-based high-temperature direct reduction experiments are made by using a gas mixture of CO and H2O as a reducing agent. And then the reduction effect was investigated by magnetic separation experiments, to realize that separation of iron minerals from red mud. The results show that the consequent of the magnetic separation is improved obviously with the temperature rising. Under these conditions, namely, the roasting temperature being 1050°C, the roasting time lasting 90 minutes, the reduction gas rate being 0.7 m3/min, the magnetic field being 2.2A, and three magnetic separations, the iron recovery ratio in red mud is over 97%.

46

El-Ashgar, Nizam M. "Column Extraction and Separation of Some Metal Ions by Diethylenetriamine Polysiloxane Immobilized Ligand System." E-Journal of Chemistry 5, no. 1 (2008): 107–13. http://dx.doi.org/10.1155/2008/427391.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

An extraction chromatographic solid porous polysiloxane functionalized by chelating diethylenetriamine ligand of the general formula P-(CH2)3-NH(CH2)2NH(CH2)2NH2, (Where P represents [Si-O]nsiloxane network) has been evaluated for the separation of Co(II), Ni(II) and Cu(II) from aqueous solutions. The chromatographic parameters of the separation method have been optimized. The ligand system retained Co(II), Cu(II) and Zn(II) effectively when used as a metal ion extractant by controlling the pH value. The ligand system also shows a good separation of a mixture of metal ions Co(II), Ni(II) and Cu(II) when used as chromatographic stationary phase. The optimum separation pH values were 4.5, 4 for Co(II) and Ni(II) respectively, while a solution of 0.1 M HNO3was used to elute Cu(II). Metal ions were also preconcentrated at pH 5.5. The chemisorbed metal ions were regenerated from the solid extractant using 0.5 M HCl.

47

Sazali, N., W. N. W. Salleh, A. F. Ismail, K. Kadirgama, and F. E. C. Othman. "P84 Co-Polyimide Based-Tubular Carbon Membrane: Effect of Heating Rates on Helium Separations." Solid State Phenomena 280 (August 2018): 308–11. http://dx.doi.org/10.4028/www.scientific.net/ssp.280.308.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Helium is one of the most valuable gases with unique features and properties as well as widely used in various applications. Generally, most of the helium sources was extracted from natural gas and it is very crucial to develop efficient technology for helium recovery from natural gas sources, in order to overcome the deficit of the helium supply. Up to now, there are various available traditional separation methods for helium recovery, however these methods possessed several disadvantages such as expensive in cost and energy intensive. Recently, gas separation by using membranes have been utilized and showed potential in recovering and purifying helium from natural gas. This method directly separating the helium from the methane through natural gas liquefaction process where in this process the helium is recovered from the nitrogen rejection unit (NRU) exit gas. Due to the potential benefits that can be obtained from this membrane-based separation method, this current study is aiming to provide more comprehensive scientific reports on the effects of preparation parameters on the performance of tubular carbon membranes (TCMs) for helium separation. In this study, the carbonization heating rate was varied from 1 to 7°C/min by controlling the final temperature at 800°C under Argon environment for all polymeric tubular membranes. The permeation performance of the resultant TCMs have been determined by using a single permeation apparatus. It is necessary to fine-tuning the carbonization conditions in order to obtain the desired permeation properties. From the results, it can be concluded that the most optimum heating rate was found to be at 3°C/min with 463.86±3.12 selectivity of He/N2separation.

48

D’Agostino, Joshua J., Lisa J. Kewley, Brent A. Groves, Anne M. Medling, Enrico Di Teodoro, Michael A. Dopita, Adam D. Thomas, Ralph S. Sutherland, and Santiago Garcia-Burillo. "Separating line emission from star formation, shocks, and AGN ionization in NGC 1068." Monthly Notices of the Royal Astronomical Society 487, no. 3 (June 10, 2019): 4153–68. http://dx.doi.org/10.1093/mnras/stz1611.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

ABSTRACT In the optical spectra of galaxies, the separation of line emission from gas ionized by star formation and an active galactic nucleus (AGN), or by star formation and shocks, are very well-understood problems. However, separating line emission between AGN and shocks has proven difficult. With the aid of a new three-dimensional diagnostic diagram, we show the simultaneous separation of line emission from star formation, shocks, and AGN in NGC 1068, and quantify the ratio of star formation, shocks, and AGN in each spaxel. The AGN, shock, and star formation luminosity distributions across the galaxy accurately align with X-ray, radio, and CO(3–2) observations, respectively. Comparisons with previous separation methods show that the shocked emission heavily mixes with the AGN emission. We also show that if the H α flux is to be used as a star formation rate indicator, separating line emission from as many sources as possible should be attempted to ensure accurate results.

49

Park, Byung Joo, Sung Woo Sohn, Do Hyang Kim, Hee Tae Jeong, and Won Tae Kim. "Solid-state phase separation in Zr–Y–Al–Co metallic glass." Journal of Materials Research 23, no. 3 (March 2008): 828–32. http://dx.doi.org/10.1557/jmr.2008.0095.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The present study shows that the as-melt-spun Zr28Y28Al22Co22 amorphous ribbon undergoes solid-state phase separation into Zr- and Y-rich regions when heated below the glass transition temperature (Tg). Dynamic mechanical measurements show that two types of low-temperature relaxation occur below Tg, and transmission electron microscopy observation confirms the solid-state phase-separated microstructure. The diffusion coefficient of solid-state phase separation is calculated by the measured separation distance.

50

Gahan, Luke. "Separation and Post‐Separation Parenting within Lesbian and Gay Co‐parenting (Guild Parented) Families." Australian and New Zealand Journal of Family Therapy 40, no. 1 (February 9, 2019): 98–113. http://dx.doi.org/10.1002/anzf.1343.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.