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200 Results Found

  • Article
  • Open Access
6 Citations
4,632 Views
15 Pages

Effects of Combined Surface and In‐Depth Absorption on Ignition of PMMA

  • Junhui Gong,
  • Yixuan Chen,
  • Jing Li,
  • Juncheng Jiang,
  • Zhirong Wang and
  • Jinghong Wang

5 October 2016

A one‐dimensional numerical model and theoretical analysis involving both surface and in‐depth radiative heat flux absorption are utilized to investigate the influence of their combination on ignition of PMMA (Polymethyl Methacrylate). Ignition time,...

  • Article
  • Open Access
34 Citations
5,284 Views
15 Pages

The Caco-2 model is a well-accepted in vitro model for the estimation of fraction absorbed in human intestine. Due to the lack of cytochrome P450 3A4 (CYP3A4) activities, Caco-2 model is not suitable for the investigation of intestinal first-pass met...

  • Article
  • Open Access
1 Citations
2,080 Views
19 Pages

9 September 2024

Absorbing aerosols can absorb solar radiation, affect the atmospheric radiation balance, and further have a profound influence on the global and regional climates. The absorption aerosol optical depth (AAOD) as well as the absorption Angstrom exponen...

  • Article
  • Open Access
2 Citations
1,187 Views
14 Pages

Versatile Tunable Terahertz Absorption Device Based on Bulk Dirac Semimetals and Graphene

  • Jie Zhou,
  • Xin Sun,
  • Jun Xu,
  • Shiyue Wu,
  • Kaili Jin,
  • Yongjian Tang,
  • Zao Yi and
  • Yougen Yi

21 February 2025

We employed the CST Microwave Studio software 2020 and the FDID algorithm for simulation. We have designed a terahertz broadband absorber based on Dirac semimetals and graphene, achieving continuous broadband absorption with a rate exceeding 80% over...

  • Review
  • Open Access
5 Citations
3,561 Views
27 Pages

20 September 2023

This review focuses on the role of hormones derived from enteroendocrine cells (EECs) on appetite and nutrient absorption in chickens. In response to nutrient intake, EECs release hormones that act on many organs and body systems, including the brain...

  • Article
  • Open Access
1,118 Views
22 Pages

29 September 2024

The triply twisted Möbius carbon nanobelt (TMCNB) possesses an extremely distinctive geometric and electronic structure and therefore is anticipated to demonstrate outstanding optical properties. In this paper, through integrating quantum chemic...

  • Article
  • Open Access
10 Citations
2,396 Views
12 Pages

In Situ Formation of CoS2 Hollow Nanoboxes via Ion-Exchange for High-Performance Microwave Absorption

  • Dongwei Xu,
  • Huanhuan Guo,
  • Feifan Zhang,
  • Yanmei Wu,
  • Xiaoqin Guo,
  • Yumei Ren and
  • Desheng Feng

21 August 2022

Hollow nanoboxes structure have raised great attention as microwave absorption materials on account of their ultralow density and large specific area. By introducing an adjustable interior cavity structure, the dielectric loss and microwave absorptio...

  • Article
  • Open Access
5 Citations
1,380 Views
15 Pages

Low-Velocity Impact Behaviour of Titanium-Based Carbon-Fibre/Epoxy Laminate

  • Jing Sun,
  • Weilin Chen,
  • Hongjie Luo,
  • Xingfang Xie,
  • Jingzhou Zhang and
  • Chao Ding

4 November 2024

This study investigated the low-velocity impact response of titanium-based carbon-fibre/epoxy laminate (TI-CF FML). A comprehensive experimental study was carried out with impact energies ranging from 16.9 J to 91.9 J. Finite element analysis, perfor...

  • Article
  • Open Access
14 Citations
6,057 Views
20 Pages

In order to improve innovation performance, it is necessary to analyze a series of processes that are connected to innovation performance, as well as R&D input. Since industrial characteristics affect innovation performance, the differences betwe...

  • Article
  • Open Access
8 Citations
4,773 Views
28 Pages

21 March 2022

Black carbon (BC) absorption aerosol optical depth (AAODBC) defines the contribution of BC in light absorption and is retrievable using sun/sky radiometer measurements provided by Aerosol Robotic Network (AERONET) inversion products. In this study, w...

  • Article
  • Open Access
2 Citations
2,270 Views
18 Pages

Non-Invasive Optoacoustic Imaging for In-Depth Cultural Heritage Diagnostics

  • George J. Tserevelakis,
  • Eleanna Pirgianaki,
  • Kristalia Melessanaki,
  • Giannis Zacharakis and
  • Costas Fotakis

25 September 2024

The complex composition of cultural heritage (CH) items presents significant challenges in assessing their condition and predicting potential risks of material degradation. Typically employed diagnostic optical methods are inevitably limited by light...

  • Feature Paper
  • Review
  • Open Access
29 Citations
6,918 Views
19 Pages

Quantum dots (QDs) are zero-dimensional (0D) nanomaterials with charge confinement in all directions that significantly impact various applications. Metal-free organic quantum dots have fascinating properties such as size-dependent bandgap tunability...

  • Article
  • Open Access
2 Citations
2,211 Views
20 Pages

Effect of Bubbling on Ignition of PMMA Slab: Change in Thermo-Physical and Thermo-Radiative Properties

  • Chloë Vincent,
  • Claire Longuet,
  • Laurent Aprin,
  • Pierre Slangen,
  • Guillaume Rambaud and
  • Laurent Ferry

3 April 2024

In semi-transparent polymers, ignition is not only dependent on conductive thermal transfer into the material but also on in-depth absorption of the radiation. The aim of this work was to investigate the influence of bubbling on the thermo-physical a...

  • Article
  • Open Access
8 Citations
4,282 Views
17 Pages

30 October 2020

Absorption aerosol optical depth induced by black carbon (AAODBC) was retrieved using the depolarization ratio and single scattering albedo provided by the Aerosol Robotic Network (AERONET) inversion products over East Asia. Our analysis considered A...

  • Review
  • Open Access
59 Citations
25,351 Views
15 Pages

The Influence of Alcohol Consumption on Intestinal Nutrient Absorption: A Comprehensive Review

  • Molly Butts,
  • Vijaya Lakshmi Sundaram,
  • Usha Murughiyan,
  • Alip Borthakur and
  • Soudamani Singh

24 March 2023

Chronic alcohol use has been attributed to the development of malnutrition. This is in part due to the inhibitory effect of ethanol on the absorption of vital nutrients, including glucose, amino acids, lipids, water, vitamins, and minerals within the...

  • Article
  • Open Access
18 Citations
4,756 Views
14 Pages

16 July 2018

Monolayer, bilayer, and trilayer graphene quantum dots (GQDs) with different binding abilities to elemental heavy metals (HMs: Cd, Hg, and Pb) were designed, and their electronic and optical properties were investigated theoretically to understand de...

  • Article
  • Open Access
13 Citations
2,997 Views
16 Pages

Characterizing Atmospheric Brown Carbon and Its Emission Sources during Wintertime in Shanghai, China

  • Linyuan Zhang,
  • Jung Hyun Son,
  • Zhe Bai,
  • Wei Zhang,
  • Ling Li,
  • Lina Wang and
  • Jianmin Chen

20 June 2022

Atmospheric brown carbon (BrC) is a kind of organic aerosol that efficiently absorbs ultraviolet-visible light and has an impact on climate forcing. We conducted an in-depth field study on ambient aerosols at a monitoring point in Shanghai, China, ai...

  • Article
  • Open Access
2,281 Views
17 Pages

Absorption, Thermal Relaxation Time, and Beam Penetration Depth of Laser Wavelengths in Ex Vivo Porcine Gingival Tissues

  • Mayssaa Ismail,
  • Thibault Michel,
  • Daniel Heysselaer,
  • Saad Houeis,
  • Andre Peremans,
  • Alain Vanheusden and
  • Samir Nammour

29 August 2025

Background/Objectives: The laser beam absorption and thermal relaxation time (TRT) in oral tissues are key to optimizing treatment parameters. The aim of this study is to (1) evaluate, in an ex vivo study, the percentage of attenuation and transmitta...

  • Review
  • Open Access
10 Citations
3,137 Views
21 Pages

30 August 2024

This article provides an in-depth exploration of the current state of research in microwave-absorbing composite materials, juxtaposing the status quo of coating type and structurally reinforced resin-based composites, with a particular emphasis on th...

  • Article
  • Open Access
2 Citations
1,736 Views
15 Pages

Broadband Solar Absorber and Thermal Emitter Based on Single-Layer Molybdenum Disulfide

  • Wanhai Liu,
  • Fuyan Wu,
  • Zao Yi,
  • Yongjian Tang,
  • Yougen Yi,
  • Pinghui Wu and
  • Qingdong Zeng

23 September 2024

In recent years, solar energy has become popular because of its clean and renewable properties. Meanwhile, two-dimensional materials have become a new favorite in scientific research due to their unique physicochemical properties. Among them, monolay...

  • Article
  • Open Access
12 Citations
4,538 Views
17 Pages

Properties of Novel Non-Silicon Materials for Photovoltaic Applications: A First-Principle Insight

  • Murugesan Rasukkannu,
  • Dhayalan Velauthapillai,
  • Federico Bianchini and
  • Ponniah Vajeeston

17 October 2018

Due to the low absorption coefficients of crystalline silicon-based solar cells, researchers have focused on non-silicon semiconductors with direct band gaps for the development of novel photovoltaic devices. In this study, we use density functional...

  • Article
  • Open Access
23 Citations
6,694 Views
17 Pages

18 September 2021

In-depth botanical characterization was performed on Premna odorata Blanco (Lamiaceae) different organs for the first time. The leaves are opposite, hairy and green in color. Flowers possess fragrant aromatic odors and exist in inflorescences of 4–15...

  • Article
  • Open Access
2 Citations
2,359 Views
19 Pages

13 March 2025

Based on the three-parameter approximate JCAL analytical model (hereinafter referred to as the three-parameter model), this study conducted an in-depth analysis of the effects of porosity, median pore size, and pore size standard deviation on the aco...

  • Article
  • Open Access
28 Citations
11,814 Views
25 Pages

Analysis of Sheep Wool-Based Composites for Building Insulation

  • Tünde-Orsolya Dénes,
  • Raluca Iştoan,
  • Daniela Roxana Tǎmaş-Gavrea,
  • Daniela Lucia Manea,
  • Andreea Hegyi,
  • Florin Popa and
  • Ovidiu Vasile

22 May 2022

The aim of this paper is to propose ecological thermal insulation materials that meet the goals of sustainability but also fulfill the imposed thermal performance requirements. This paper studies new composite materials based on sheep wool from the p...

  • Article
  • Open Access
19 Citations
5,030 Views
12 Pages

Laser Shock Peening of Ti6Al4V Alloy with Combined Nanosecond and Femtosecond Laser Pulses

  • Rujian Sun,
  • Guangzhi He,
  • Hailin Bai,
  • Jianfeng Yan and
  • Wei Guo

23 December 2021

Laser shock peening (LSP) with nanosecond or femtosecond laser pulses is applied to improve the mechanical properties of metallic materials. Thus, it is necessary to compare the effects of different processing methods on microstructure changes and pr...

  • Review
  • Open Access
49 Citations
7,747 Views
34 Pages

Overweight and obesity are significant global public health concerns that are increasing in prevalence at an alarming rate. Numerous studies have demonstrated the benefits of probiotics against obesity. Postbiotics are the next generation of probioti...

  • Article
  • Open Access
1,235 Views
24 Pages

25 February 2025

Iron smelting is one of the primary sources of carbon emissions. The development of low-carbon ironmaking technologies is essential for the iron and steel industry to realize the “dual carbon” ambition. Hydrogen-based flash ironmaking tec...

  • Article
  • Open Access
17 Citations
4,435 Views
21 Pages

The objective of this study was to improve user experience when appreciating visual artworks with soundscape music chosen by a deep neural network based on weakly supervised learning. We also propose a multi-faceted approach to measuring ambiguous co...

  • Article
  • Open Access
6 Citations
3,018 Views
17 Pages

26 May 2022

In open innovation platforms, users learn external knowledge through network interaction, and their position in the interactive network has an impact on the user’s sustainable knowledge contribution. Due to the gap in knowledge level, users&rsq...

  • Article
  • Open Access
4 Citations
1,938 Views
16 Pages

Exploring Structure-Sensitive Factors Relevant to Cryogenic Laser Operation in Oxide Crystals Doped with Er3+ Ions

  • Witold Ryba-Romanowski,
  • Radoslaw Lisiecki,
  • Jaroslaw Komar,
  • Boguslaw Macalik and
  • Marek Berkowski

3 March 2023

Crystals of Gd3Al2.5Ga2.5O12:Er3+, (Lu0.3Gd0.7)2SiO5:Er3+ and LiNbO3:Er3+ compounds differing in origin and the nature of their inherent structural disorder were crystalized. Optical absorption and luminescence spectra for transitions between the 4I1...

  • Article
  • Open Access
1 Citations
3,479 Views
29 Pages

Dissecting the Economics of Tourism and Its Influencing Variables—Facts on the National Capital City (IKN)

  • Iis Surgawati,
  • Surya Darma,
  • Agus Muriawan Putra,
  • Sarifudin Sarifudin,
  • Misna Ariani,
  • Ihsan Ashari and
  • Dio Caisar Darma

The field of tourism economics has consistently attracted big attention from scholars across various countries. Tourism is inherently linked to economic aspects. Concurrently, Indonesia has relocated its Ibu Kota Negara/National Capital City, now nam...

  • Article
  • Open Access
1 Citations
2,981 Views
21 Pages

27 August 2022

Global warming has brought about enormous damage, therefore, some scholars have begun to conduct in-depth research on peak carbon dioxide emissions and carbon neutrality. In this paper, based on the background of China’s upgrading industrial st...

  • Review
  • Open Access
28 Citations
8,794 Views
23 Pages

Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

  • Tan Mao,
  • Junyan Zha,
  • Ying Hu,
  • Qian Chen,
  • Jiaming Zhang and
  • Xueke Luo

Titanium dioxide (TiO2) photocatalysts, characterized by exceptional photocatalytic activity, high photoelectric conversion efficiency, and economic viability, have found widespread application in recent years for azo dye degradation. However, inhere...

  • Article
  • Open Access
51 Citations
11,798 Views
36 Pages

16 November 2019

This paper addresses the challenging task of optical characterization of pure, dielectric (nano-)powders with the aim to provide an end-to-end instruction from appropriate sample preparation up to the determination of material remission and absorptio...

  • Article
  • Open Access
9 Citations
4,448 Views
21 Pages

Exciton Coupling and Conformational Changes Impacting the Excited State Properties of Metal Organic Frameworks

  • Andreas Windischbacher,
  • Luca Steiner,
  • Ritesh Haldar,
  • Christof Wöll,
  • Egbert Zojer and
  • Anne-Marie Kelterer

15 September 2020

In recent years, the photophysical properties of crystalline metal-organic frameworks (MOFs) have become increasingly relevant for their potential application in light-emitting devices, photovoltaics, nonlinear optics and sensing. The availability of...

  • Review
  • Open Access
16 Citations
3,904 Views
17 Pages

Advancing Process Intensification with High-Frequency Ultrasound: A Mini-Review of Applications in Biofuel Production and Beyond

  • Viesuieda Chit,
  • Lian See Tan,
  • Peck Loo Kiew,
  • Tomoya Tsuji,
  • Toshitaka Funazukuri and
  • Serene Sow Mun Lock

17 April 2023

High-frequency ultrasound (HFU) is an ultrasound technology with a frequency higher than 1000 kHz. It has become increasingly recognized as an emerging process intensification technology in various fields, such as biofuel production, carbon dioxide a...

  • Article
  • Open Access
6 Citations
2,486 Views
15 Pages

Mechanical Properties of Orthodontic Cements and Their Behavior in Acidic Environments

  • Cristina Iosif,
  • Stanca Cuc,
  • Doina Prodan,
  • Marioara Moldovan,
  • Ioan Petean,
  • Anca Labunet,
  • Lucian Barbu Tudoran,
  • Iulia Clara Badea,
  • Sorin Claudiu Man and
  • Mîndra Eugenia Badea
  • + 1 author

9 November 2022

The present research is focused on three different classes of orthodontic cements: resin composites (e.g., BracePaste); resin-modified glass ionomer RMGIC (e.g., Fuji Ortho) and resin cement (e.g., Transbond). Their mechanical properties such as comp...

  • Article
  • Open Access
24 Citations
6,641 Views
50 Pages

Optimal Cyanobacterial Pigment Retrieval from Ocean Colour Sensors in a Highly Turbid, Optically Complex Lake

  • Caitlin A.L. Riddick,
  • Peter D. Hunter,
  • José Antonio Domínguez Gómez,
  • Victor Martinez-Vicente,
  • Mátyás Présing,
  • Hajnalka Horváth,
  • Attila W. Kovács,
  • Lajos Vörös,
  • Eszter Zsigmond and
  • Andrew N. Tyler

7 July 2019

To date, several algorithms for the retrieval of cyanobacterial phycocyanin (PC) from ocean colour sensors have been presented for inland waters, all of which claim to be robust models. To address this, we conducted a comprehensive comparison to iden...

  • Article
  • Open Access
22 Citations
6,224 Views
12 Pages

Silver Nanoparticles Functionalized by Fluorescein Isothiocyanate or Rhodamine B Isothiocyanate: Fluorescent and Plasmonic Materials

  • Ilaria Fratoddi,
  • Chiara Battocchio,
  • Giovanna Iucci,
  • Daniele Catone,
  • Antonella Cartoni,
  • Alessandra Paladini,
  • Patrick O’Keeffe,
  • Silvia Nappini,
  • Sara Cerra and
  • Iole Venditti

10 March 2021

This paper presents the synthesis of silver nanoparticles (AgNPs) functionalized with fluorescent molecules, in particular with xanthene-based dyes, i.e., fluorescein isothiocyanate (FITC, λmax = 485 nm) and rhodamine B isothiocyanate (RITC, λmax = 5...

  • Article
  • Open Access
2 Citations
2,552 Views
13 Pages

Pharmacokinetic Study and Metabolite Identification of 1-(3′-bromophenyl)-heliamine in Rats

  • Ruqi Xi,
  • Rahima Abdulla,
  • Miaomiao Zhang,
  • Zhurakulov Sherzod,
  • Vinogradova Valentina Ivanovna,
  • Maidina Habasi and
  • Yongqiang Liu

29 November 2022

Tetrahydroisoquinolines have been widely investigated for the treatment of arrhythmias. 1−(3′−bromophenyl)−heliamine (BH), an anti−arrhythmias agent, is a synthetic tetrahydroisoquinoline. This study focuses on the pharm...

  • Review
  • Open Access
64 Citations
22,014 Views
35 Pages

Beta-Glucan as a Soluble Dietary Fiber Source: Origins, Biosynthesis, Extraction, Purification, Structural Characteristics, Bioavailability, Biofunctional Attributes, Industrial Utilization, and Global Trade

  • Apurva Singla,
  • Om Prakash Gupta,
  • Vijeta Sagwal,
  • Abhishek Kumar,
  • Neha Patwa,
  • Narender Mohan,
  • Ankush,
  • Dinesh Kumar,
  • Om Vir and
  • Jogendra Singh
  • + 3 authors

21 March 2024

This paper explores the multifaceted nature of β-glucan, a notable dietary fiber (DF) with extensive applications. Beginning with an in-depth examination of its intricate polysaccharide structure, the discussion extends to diverse sources like o...

  • Review
  • Open Access
15 Citations
6,283 Views
35 Pages

Deciphering the Molecular Mechanisms behind Drug Resistance in Ovarian Cancer to Unlock Efficient Treatment Options

  • Mariana Nunes,
  • Carla Bartosch,
  • Miguel Henriques Abreu,
  • Alan Richardson,
  • Raquel Almeida and
  • Sara Ricardo

4 May 2024

Ovarian cancer is a highly lethal form of gynecological cancer. This disease often goes undetected until advanced stages, resulting in high morbidity and mortality rates. Unfortunately, many patients experience relapse and succumb to the disease due...

  • Review
  • Open Access
19 Citations
4,641 Views
25 Pages

Sanguiins—Promising Molecules with Broad Biological Potential

  • Jakub Gesek,
  • Katarzyna Jakimiuk,
  • Atanas G. Atanasov and
  • Michał Tomczyk

30 November 2021

Compounds of natural origin, an infinite treasure of bioactive chemical entities, persist as an inexhaustible resource for discovering new medicines. In this review, we summarize the naturally occurring ellagitannins, sanguiins, which are bioactive c...

  • Review
  • Open Access
524 Views
68 Pages

Metallic Mechanical Metamaterials Produced by LPBF for Energy Absorption Systems

  • Gabriele Grima,
  • Kamal Sleem,
  • Gianni Virgili,
  • Alberto Santoni,
  • Maria Laura Gatto,
  • Stefano Spigarelli,
  • Marcello Cabibbo and
  • Eleonora Santecchia

28 November 2025

Metallic mechanical metamaterials have attracted the attention of many industrial sectors due to their unique properties which enable them to outperform natural materials in unconventional ways. Metal metamaterials encompass multiple fields, includin...

  • Article
  • Open Access
1 Citations
2,537 Views
13 Pages

Progesterone (PROG) and estrone (E1) are typical reproductive hormones in dairy cows. Assessing the levels of these hormones in vivo can aid in estrus identification. In the present work, the feasibility of the qualitative and quantitative detection...

  • Review
  • Open Access
44 Citations
7,870 Views
24 Pages

Magnesium-based hydrogen storage alloys have attracted significant attention as promising materials for solid-state hydrogen storage due to their high hydrogen storage capacity, abundant reserves, low cost, and reversibility. However, the widespread...

  • Article
  • Open Access
1,222 Views
15 Pages

25 February 2025

Fullerenes are a class of highly symmetric spherical carbon materials that have attracted significant attention in optoelectronic applications due to their excellent electron transport properties. However, the isotropy of their spherical structure of...

  • Review
  • Open Access
6 Citations
3,259 Views
20 Pages

Cancer is considered as the second leading cause of death worldwide. Chemotherapy, radiotherapy, immunotherapy, and targeted drug delivery are the main treatment options for treating cancers. Chemotherapy drugs are either available for oral or parent...

  • Article
  • Open Access
1 Citations
2,385 Views
12 Pages

28 June 2020

There are barriers to in-depth memory-based dietary assessment techniques in community-based research. Food pattern modeling may be an alternative method to traditional assessment techniques. The objective of this study was to pilot a comparison of f...

  • Article
  • Open Access
11 Citations
3,927 Views
17 Pages

Potential Study of Solar Thermal Cooling in Sub-Mediterranean Climate

  • Mustafa Jaradat,
  • Mohammad Al-Addous,
  • Aiman Albatayneh,
  • Zakariya Dalala and
  • Nesrine Barbana

1 April 2020

Air conditioning is becoming increasingly important in the energy supply of buildings worldwide. There has been a dramatic increase in energy requirements for cooling buildings in the Middle East and North Africa (MENA) region. This is before taking...

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