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1,471 Results Found

  • Article
  • Open Access
1,427 Views
23 Pages

17 March 2025

As part of the so-called interfacial separation techniques, selective particle agglomeration is one of the few options that are suitable for the separation of heterogeneous, multicomponent systems of particles smaller than 1 μm. In this regard, th...

  • Article
  • Open Access
1,678 Views
18 Pages

Recovery of Fine Rare Earth Minerals from Simulated Tin Tailings by Carrier Magnetic Separation: Selective Heterogeneous Agglomeration with Coarse Magnetite Particles

  • Ilhwan Park,
  • Topan Satria Gumilang,
  • Rinaldi Yudha Pratama,
  • Sanghee Jeon,
  • Carlito Baltazar Tabelin,
  • Theerayut Phengsaart,
  • Muhammad Bilal,
  • Youhei Kawamura and
  • Mayumi Ito

19 July 2025

The demand for rare earth elements (REEs) is continuously increasing due to the important roles they play in low-carbon and green energy technologies. Unfortunately, the global REE reserves are limited and concentrated in only a few countries, so the...

  • Article
  • Open Access
6 Citations
3,153 Views
15 Pages

Short-Chained Platinum Complex Catalyzed Hydrosilylation under Thermomorphic Conditions: Heterogeneous Phase Separation at Ice Temperature

  • Chiao-Fan Chiu,
  • Jinn-Hsuan Ho,
  • Eskedar Tessema,
  • Yijing Lu,
  • Chia-Rui Shen,
  • Chang-Wei Lin and
  • Norman Lu

13 January 2021

Homogeneous catalysts PtCl2[5,5′-bis-(n-ClCF2(CF2)3CH2OCH2)-2,2′-bpy] (2A) and PtCl2[5,5′-bis-(n-HCF2(CF2)3CH2OCH2)-2,2′-bpy] (2B), which contained short fluorous chains, were synthesized and used in catalysis of hydrosilylati...

  • Article
  • Open Access
28 Citations
13,767 Views
18 Pages

Separation of the Mixture 2-Propanol + Water by Heterogeneous Azeotropic Distillation with Isooctane as an Entrainer

  • Giorgia De Guido,
  • Chiara Monticelli,
  • Elvira Spatolisano and
  • Laura Annamaria Pellegrini

2 September 2021

Advanced processes, which are alternatives to ordinary distillation, are essential to dehydrate azeotropic alcoholic mixtures for biofuel production. In that regard, this work focuses on the analysis of heterogeneous azeotropic distillation for the s...

  • Article
  • Open Access
8 Citations
2,999 Views
20 Pages

19 October 2022

Heterogeneous membranes, otherwise known as Mixed Matrix Membranes (MMMs), which are used in gas separation processes, are the subject of growing interest. This is due to their potential to improve the process properties of membranes compared to thos...

  • Feature Paper
  • Review
  • Open Access
263 Citations
22,036 Views
17 Pages

Recovery/Reuse of Heterogeneous Supported Spent Catalysts

  • Mariachiara Miceli,
  • Patrizia Frontera,
  • Anastasia Macario and
  • Angela Malara

The rapid separation and efficient recycling of catalysts after a catalytic reaction are considered important requirements along with the high catalytic performances. In this view, although heterogeneous catalysis is generally less efficient if compa...

  • Review
  • Open Access
127 Citations
19,993 Views
25 Pages

16 November 2010

The greatest advantage of heterogeneous catalysis is the ease of separation, while the disadvantages are often limited activity and selectivity. We report solvents that use tunable phase behavior to achieve homogeneous catalysis with ease of separat...

  • Article
  • Open Access
2 Citations
2,959 Views
13 Pages

12 January 2021

Enhancement of photoexcited charge separation in semiconductor photocatalysts is one of the important subjects to improve the efficiency of energy conversion for photocatalytic overall water splitting into H2 and O2. In this study, we report an effic...

  • Communication
  • Open Access
20 Citations
4,768 Views
8 Pages

8 September 2018

Bone marrow-derived mesenchymal stem cells (BMSCs) are an important cell resource for stem cell-based therapy, which are generally isolated and enriched by the density-gradient method based on cell size and density after collection of tissue samples....

  • Review
  • Open Access
31 Citations
6,223 Views
24 Pages

Application of Spinel and Hexagonal Ferrites in Heterogeneous Photocatalysis

  • Zuzanna Bielan,
  • Szymon Dudziak,
  • Adam Kubiak and
  • Ewa Kowalska

29 October 2021

Semiconducting materials display unique features that enable their use in a variety of applications, including self-cleaning surfaces, water purification systems, hydrogen generation, solar energy conversion, etc. However, one of the major issues is...

  • Article
  • Open Access
4 Citations
2,489 Views
17 Pages

23 August 2023

Controlling the phase-separated structure of polymer alloys is a promising method for tailoring the properties of polymers. However, controlling the morphology of phase-separated structures is challenging. Recently, phase-separated structures have be...

  • Article
  • Open Access
37 Citations
7,116 Views
28 Pages

15 September 2017

Reducing energy consumption of mobile communication networks has gained significant attentions since it takes a major part of the total energy consumption of information and communication technology (ICT). In this paper, we consider 5G networks with...

  • Article
  • Open Access
45 Citations
7,108 Views
16 Pages

5 February 2018

A superparamagnetic graphene oxide/Fe3O4/l-proline nano hybrid that was obtained from the non-covalent immobilization of l-proline on graphene oxide/Fe3O4 nanocomposite was used as a new magnetically separable catalyst for the efficient synthesis of...

  • Article
  • Open Access
5 Citations
3,205 Views
22 Pages

A Parallel InSAR Phase Unwrapping Method Based on Separated Continuous Regions

  • Jian Gao,
  • Houjun Jiang,
  • Zhongchang Sun,
  • Ruisheng Wang and
  • Youmei Han

28 February 2023

Phase unwrapping is an imperative step in interferometry processing that has a significant influence on the quality of subsequent products. Many existing phase unwrapping algorithms have been designed to solve for the unwrapped phase under the assump...

  • Article
  • Open Access
8 Citations
2,745 Views
15 Pages

28 April 2022

Differentiation of grassland/forage types and accurate estimates of their location and extent are important for understanding their ecological processes and for applying appropriate management practices. We are aiming to reveal the different spectral...

  • Article
  • Open Access
1,066 Views
15 Pages

Heterogeneous Interactions During Bubble–Oil Droplet Contact in Water

  • Tao Yang,
  • Hao Xiao,
  • Chunyu Jiang,
  • Ming Ma,
  • Guangwen Zhang,
  • Chun Wang,
  • Yi Zheng and
  • Xiangdi Zhao

Oily wastewater is extensively generated during the petroleum extraction and refining processes, as crude oil production water and from the effluent systems in petrochemical enterprises. The discharge standards for such wastewater are stringent, with...

  • Perspective
  • Open Access
103 Citations
16,615 Views
36 Pages

New Directions in Metal Phosphonate and Phosphinate Chemistry

  • Stephen J.I. Shearan,
  • Norbert Stock,
  • Franziska Emmerling,
  • Jan Demel,
  • Paul A. Wright,
  • Konstantinos D. Demadis,
  • Maria Vassaki,
  • Ferdinando Costantino,
  • Riccardo Vivani and
  • Sébastien Sallard
  • + 3 authors

24 May 2019

In September 2018, the First European Workshop on Metal Phosphonates Chemistry brought together some prominent researchers in the field of metal phosphonates and phosphinates with the aim of discussing past and current research efforts and identifyin...

  • Review
  • Open Access
39 Citations
12,367 Views
14 Pages

Although liquid–liquid phase separation of cytoplasmic or nuclear components in cells has been a major focus in cell biology, it is only recently that the principle of phase separation has been a long-standing concept and extensively studied in biome...

  • Article
  • Open Access
22 Citations
9,643 Views
17 Pages

26 March 2012

The synthesis of magnetically separable quasi-homogeneous base catalyst and heterogeneous base catalyst is described. The quasi-homogeneous catalyst is achieved by supporting silane monomers functionalized with different amine groups directly on the...

  • Article
  • Open Access
948 Views
18 Pages

Separation of Rapeseed Oil Transesterification Reaction Product Obtained Under Supercritical Fluid Conditions Using Heterogeneous Catalysts

  • Yuri A. Shapovalov,
  • Sergei V. Mazanov,
  • Almaz U. Aetov,
  • Dyusek H. Kamysbaev,
  • Rustam R. Tokpayev and
  • Farid M. Gumerov

27 March 2025

Rapeseed oil transesterification reaction with ethanol under supercritical fluid conditions was performed either in the presence of catalysts or without them. The catalysts were Al2O3 and AlOOH, obtained after Al2O3 hydrothermal processing, and CaO/A...

  • Review
  • Open Access
206 Citations
17,464 Views
27 Pages

31 March 2015

This review is focused on the strategies and designs of magnetic nanostructured catalysts showing the enhanced and sustainable catalytic performances for the heterogeneous reduction of nitoaromatics. Magnetic catalysts have the benefits of easy recov...

  • Article
  • Open Access
3 Citations
2,403 Views
14 Pages

Sweet, Sugar-Coated Hierarchical Platinum Nanostructures for Easy Support, Heterogenization and Separation

  • Dennis Woitassek,
  • José G. Moya-Cancino,
  • Yangyang Sun,
  • Yefan Song,
  • Dennis Woschko,
  • Stefan Roitsch and
  • Christoph Janiak

30 September 2022

Metal nanoparticles are increasingly gaining interest in the field of heterogeneous catalysis. Here, we present a novel strategy for synthesizing sugar-coated platinum nanostructures (SC-Pt-NS) from the carbohydrates sucrose and D(-)-fructose. In the...

  • Article
  • Open Access
22 Citations
5,537 Views
18 Pages

Nitrate-Selective Anion Exchange Membranes Prepared using Discarded Reverse Osmosis Membranes as Support

  • Amaia Lejarazu-Larrañaga,
  • Juan Manuel Ortiz,
  • Serena Molina,
  • Yan Zhao and
  • Eloy García-Calvo

27 November 2020

The present work shows a methodology for the preparation of membranes with a high affinity for nitrates. For this purpose, a polymeric mixture containing an anion exchange resin was extended on a recycled pressure filtration membrane used as mechanic...

  • Review
  • Open Access
44 Citations
9,902 Views
57 Pages

30 March 2019

Aerosol mixing state significantly affects concentrations of cloud condensation nuclei (CCN), wet removal rates, thermodynamic properties, heterogeneous chemistry, and aerosol optical properties, with implications for human health and climate. Over t...

  • Article
  • Open Access
2 Citations
1,975 Views
14 Pages

11 April 2021

Extraction of hydrogen from hydrocarbons is a logical intermediate-term solution for the escalating worldwide demand for hydrogen. This work explores the possibility of using a single membrane to accomplish both the catalytic dehydrogenation and phys...

  • Review
  • Open Access
24 Citations
4,680 Views
29 Pages

26 November 2020

In the expansive world of porous hybrid materials, a category of materials that has been rather less explored than others and is gaining attention in development is the porous metal phosphonates. They offer promising features towards applications whi...

  • Article
  • Open Access
1 Citations
2,249 Views
16 Pages

11 October 2024

In this investigation, we explored the microrheological characteristics of dilute hydrogels composed exclusively of Poly(vinyl) alcohol (PVA), Phytagel (PHY), and a blend of the two in varying concentrations. Each of these polymers has established ap...

  • Review
  • Open Access
8 Citations
3,395 Views
31 Pages

15 October 2024

Obviously, the discussion of different factors that could have contributed to the origin of life and evolution is clear speculation, since there is no way of checking the validity of most of the related hypotheses in practice, as the corresponding ev...

  • Article
  • Open Access
260 Views
14 Pages

30 December 2025

Catalytic coacervates, or droplet reactors, represent a forefront research area in chemistry and materials science. Despite advancements in this field, challenges persist in achieving liquid–liquid phase separation (LLPS) droplet compartmentali...

  • Article
  • Open Access
1 Citations
2,280 Views
20 Pages

Outer membrane vesicles (OMVs) are extracellular vesicles secreted by Gram-negative bacteria with diameters of 20–250 nm. OMVs contain various biologically active substances from their parent bacteria, such as proteins, lipids, and nucleic acid...

  • Editorial
  • Open Access
35 Citations
7,212 Views
3 Pages

27 May 2015

Heterogeneous metal catalysts rather than homogeneous ones are recommended for industrial applications after considering their performance in activity, separation, and recycling [1]. The recycling of metal catalysts is important from economic and env...

  • Article
  • Open Access
15 Citations
3,387 Views
21 Pages

How Does Social Capital Affect Residents’ Waste-Separation Behavior? Evidence from China

  • Yexin Zhou,
  • Hongke Song,
  • Xiaopei Huang,
  • Hao Chen and
  • Wei Wei

The increasing amount of waste produced has been a challenge for human health and the environment, causing a call for effective waste management measures in which household waste separation is of great significance. Although an expanding body of lite...

  • Article
  • Open Access
2 Citations
2,756 Views
25 Pages

Formulas for Uniaxial Capacities of Tetrapod Bucket Foundations Considering Group Effects in Undrained Clay

  • Zhong Xiao,
  • Yan Wang,
  • Ying Liu,
  • Yinghui Tian,
  • Rong Wang,
  • Ran Tao and
  • Xian Wei

25 May 2022

Suction bucket foundation is a novel and cheaper foundation used in marine structures, such as offshore wind turbines, breakwater and oil platforms. Compared with a single bucket foundation, tetrapod bucket foundations can bear larger loads because o...

  • Article
  • Open Access
8 Citations
3,037 Views
17 Pages

Dielectrophoretic Microfluidic Device for Separating Microparticles Based on Size with Sub-Micron Resolution

  • Salini Krishna,
  • Fadi Alnaimat,
  • Ali Hilal-Alnaqbi,
  • Saud Khashan and
  • Bobby Mathew

30 June 2020

This article details the mathematical model of a microfluidic device aimed at separating any binary heterogeneous sample of microparticles into two homogeneous samples based on size with sub-micron resolution. The device consists of two sections, whe...

  • Article
  • Open Access
20 Citations
4,482 Views
10 Pages

Based on their high clinical potential, the isolation and enrichment of rare circulating tumor cells (CTCs) from peripheral blood cells has been widely investigated. There have been technical challenges with CTC separation methods using solely cancer...

  • Article
  • Open Access
8 Citations
3,996 Views
18 Pages

The possibility of using various types of ion-exchange membranes in diffusion dialysis for the separation of sulfuric acid and nickel sulfate has been evaluated. The process of the dialysis separation of a real waste solution from an electroplating f...

  • Article
  • Open Access
505 Views
24 Pages

Dynamic Separation Standards for Multi-Category UAV Operations

  • Yulong Cao,
  • Guhao Zhao,
  • Yarong Wu,
  • Hao Wang,
  • Jiamu Sun and
  • Libiao Zhang

30 November 2025

By 2030, projected UAV operations may exceed one million concurrent flights in urban airspace, yet traditional fixed-distance separation methods fail to accommodate heterogeneous platforms. This paper introduces a three-tier hierarchical dynamic sepa...

  • Article
  • Open Access
5 Citations
3,371 Views
22 Pages

Spent Lithium-Ion Battery Recycling Using Flotation Technology: Effect of Material Heterogeneity on Separation Performance

  • Luis Verdugo,
  • Lian Zhang,
  • Barbara Etschmann,
  • Joël Brugger,
  • Warren Bruckard,
  • Jorge Menacho,
  • Lorena Molina and
  • Andrew Hoadley

29 June 2024

In this study, two types of recycling scenarios are assessed for spent battery materials using froth flotation. The first is for a single cathode chemistry and would be considered as the most likely scenario for a large battery manufacturer, who take...

  • Article
  • Open Access
2 Citations
1,948 Views
24 Pages

6 February 2024

With the development of intelligent transportation systems (ITSs), personalized driving systems are receiving more and more attention, and the development of advanced systems cannot be separated from the practical exploration of drivers’ hetero...

  • Review
  • Open Access
1 Citations
1,630 Views
18 Pages

21 March 2025

Over the past three decades, β-lactones have emerged as valuable intermediates for producing diverse industrial chemicals and biodegradable polymers. The ring-expansion carbonylation (REC) of epoxides has become an atom-economical and direct app...

  • Article
  • Open Access
7 Citations
3,681 Views
26 Pages

Using Heterogeneous Satellites for Passive Detection of Moving Aerial Target

  • Mingqian Liu,
  • Kunming Li,
  • Hao Song,
  • Yunfei Chen,
  • Xiuhui Gao and
  • Fengkui Gong

3 April 2020

Passive detection of a moving aerial target is critical for intelligent surveillance. Its implementation can use signals transmitted from satellites. Nowadays, various types of satellites co-exist which can be used for passive detection. As a result,...

  • Article
  • Open Access
15 Citations
4,475 Views
13 Pages

Behavior of Embedded Cation-Exchange Particles in a DC Electric Field

  • Lucie Vobecká,
  • Tomáš Belloň and
  • Zdeněk Slouka

Electrodialysis and electrodeionization are separation processes whose performance depends on the quality and properties of ion-exchange membranes. One of the features that largely affects these properties is heterogeneity of the membranes both on th...

  • Article
  • Open Access
3 Citations
2,185 Views
17 Pages

Revealing the Origin of Heterogeneous Phase Transition and Deformation Behavior in Au-Ag-Cu-Based Multicomponent Alloys

  • Boning Zhang,
  • Li Fu,
  • Hualong Ge,
  • Xuequan Rong,
  • Kai Xiong,
  • Junjie He and
  • Yong Mao

17 November 2022

Local chemical heterogeneity of highly-concentrated multicomponent alloys has drawn much attention as it can produce novel material behaviors and remarkable properties. In Au-Ag-Cu-based multicomponent alloys, phase separation and ordering have long...

  • Review
  • Open Access
25 Citations
7,029 Views
99 Pages

Heterogeneous Dendrimer-Based Catalysts

  • Eduard Karakhanov,
  • Anton Maximov and
  • Anna Zolotukhina

28 February 2022

The present review compiles the advances in the dendritic catalysis within the last two decades, in particular concerning heterogeneous dendrimer-based catalysts and their and application in various processes, such as hydrogenation, oxidation, cross-...

  • Communication
  • Open Access
1,297 Views
15 Pages

2 April 2025

This paper presents a hierarchical dispatcher architecture designed to efficiently schedule the execution of multiple deep neural networks (DNNs) on edge devices with heterogeneous processing units (PUs). The proposed architecture is applicable to sy...

  • Article
  • Open Access
23 Citations
7,238 Views
13 Pages

22 February 2022

Heterogeneous catalysis has an advantage of easy separation of the catalyst after biodiesel is produced. CaO is known to be an efficient heterogeneous catalyst for biodiesel production. Taking into account that CaO is a key component of eggshells, th...

  • Review
  • Open Access
54 Citations
8,664 Views
22 Pages

30 June 2019

Glycerol is one of the most crucial by-products in the production of biodiesel, and owing to its oversaturation in the market, several synthetic strategies have been developed to transform it into other higher value-added products such as glycerol ca...

  • Article
  • Open Access
1 Citations
1,584 Views
11 Pages

14 October 2022

The fractures in brown coal influence fluid flow and deformation in these materials. These fractures display highly heterogeneous characteristics in the distributions of their apertures, separations and orientations. While discrete fracture models ha...

  • Article
  • Open Access
11 Citations
2,399 Views
12 Pages

Rapeseed Oil Transesterification Using 1-Butanol and Eggshell as a Catalyst

  • Ieva Gaide,
  • Violeta Makareviciene,
  • Egle Sendzikiene and
  • Milda Gumbytė

28 January 2023

Biodiesel can be produced both in homogeneous and heterogeneous ways. Heterogeneous synthesis allows to easily separate catalyst from esters. In this work, eggshells as a heterogeneous catalyst were used for triglyceride transesterification with 1-bu...

  • Article
  • Open Access
5 Citations
1,880 Views
12 Pages

Frequency and Prognostic Significance of Intertumoural Heterogeneity in Multifocal Jejunoileal Neuroendocrine Tumours

  • Moritz Jesinghaus,
  • Jelte Poppinga,
  • Bettina Lehman,
  • Elisabeth Maurer,
  • Annette Ramaswamy,
  • Albert Grass,
  • Pietro Di Fazio,
  • Anja Rinke,
  • Carsten Denkert and
  • Detlef K. Bartsch

17 August 2022

Background: A recent study found that multifocal jejunoileal neuroendocrine tumors (SI-NETs) are genetically unrelated synchronous neoplasms. So far, it is unclear if this finding of synchronous independent neoplasms is mirrored by heterogeneity of k...

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