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604 Results Found

  • Article
  • Open Access
63 Citations
4,468 Views
34 Pages

HTC+ for SAR Ship Instance Segmentation

  • Tianwen Zhang and
  • Xiaoling Zhang

17 May 2022

Existing instance segmentation models mostly pay less attention to the targeted characteristics of ships in synthetic aperture radar (SAR) images, which hinders further accuracy improvements, leading to poor segmentation performance in more complex S...

  • Article
  • Open Access
1 Citations
1,056 Views
23 Pages

Experimental Assessment of Green Waste HTC Pellets: Kinetics, Efficiency and Emissions

  • Yaniel Garcia Lovella,
  • Abhishek Goel,
  • Louis Garin,
  • Julien Blondeau and
  • Svend Bram

23 December 2024

The combustion of renewable solid fuels, such as biomass, is a reliable option for heat and power production. The availability of biomass resources within urban areas, such as tree leaves, small branches, grass, and other green city waste, creates an...

  • Article
  • Open Access
29 Citations
6,020 Views
16 Pages

Comparative Life Cycle Assessment of HTC Concepts Valorizing Sewage Sludge for Energetic and Agricultural Use

  • Kathleen Meisel,
  • Andreas Clemens,
  • Christoph Fühner,
  • Marc Breulmann,
  • Stefan Majer and
  • Daniela Thrän

26 February 2019

In many countries, sewage sludge is directly used for energy and agricultural purposes after dewatering or digestion and dewatering. In recent years, there has been a growing interest in additional upstream hydrothermal carbonization (HTC), which cou...

  • Article
  • Open Access
54 Citations
6,319 Views
12 Pages

Treatment of Liquid By-Products of Hydrothermal Carbonization (HTC) of Agricultural Digestate Using Membrane Separation

  • Agnieszka Urbanowska,
  • Małgorzata Kabsch-Korbutowicz,
  • Mateusz Wnukowski,
  • Przemysław Seruga,
  • Marcin Baranowski,
  • Halina Pawlak-Kruczek,
  • Monika Serafin-Tkaczuk,
  • Krystian Krochmalny and
  • Lukasz Niedzwiecki

5 January 2020

Agriculture affects both the quantity and the quality of water available for other purposes, which becomes problematic, especially during increasingly frequent severe droughts. This requires tapping into the resources that are typically neglected. On...

  • Article
  • Open Access
54 Citations
6,094 Views
19 Pages

27 November 2020

The present study addresses the coupling of hydrothermal carbonization (HTC) with anaerobic digestion (AD) in wastewater treatment plants. The improvement in biomethane production due to the recycling back to the anaerobic digester of HTC liquor and...

  • Article
  • Open Access
5 Citations
6,044 Views
23 Pages

Feasibility of Bio-Coal Production from Hydrothermal Carbonization (HTC) Technology Using Food Waste in Malaysia

  • Ajit Singh,
  • Andrew Gill,
  • David Lian Keong Lim,
  • Agustina Kasmaruddin,
  • Taghi Miri,
  • Anita Chakrabarty,
  • Hui Hui Chai,
  • Anurita Selvarajoo,
  • Festo Massawe and
  • Yi Jing Chan
  • + 9 authors

11 April 2022

The alarming rise of food waste all over the world due to population and economic growth must be tackled with better waste management and treatment methods. The current practice of landfilling has been scientifically proven to adversely impact enviro...

  • Article
  • Open Access
1,863 Views
16 Pages

Optimized Biochar from Chicken Manure via Hydrothermal Activation and Catalytic HTC: Properties and CO2 Reduction Potential

  • Seong-Yeun Yoo,
  • Thi. Thu-Trang Ho,
  • Ahmad Nadeem,
  • Seong-Su Kim,
  • Kangil Choe and
  • Jai-Young Lee

1 June 2025

Chicken manure (CM) is a nutrient-rich but environmentally problematic biomass that requires sustainable management. This study applied a three-step process consisting of hydrothermal activation (ZnCl2 or H3PO4), catalytic hydrothermal carbonization...

  • Article
  • Open Access
2 Citations
2,485 Views
19 Pages

Combining eye tracking and virtual reality (VR) is a promising approach to tackle various applied research questions. As this approach is relatively new, routines are not established yet and the first steps can be full of potential pitfalls. The pres...

  • Article
  • Open Access
11 Citations
3,907 Views
11 Pages

23 April 2021

Virtual reality headsets, such as the HTC Vive, can be used to model objects, forces, and interactions between objects with high perceived realism and accuracy. Moreover, they can accurately track movements of the head and the hands. This combination...

  • Article
  • Open Access
19 Citations
8,601 Views
17 Pages

24 August 2023

For realistic and reliable full-body visualization in virtual reality, the HTC VIVE Tracker could be an alternative to highly complex and cost- and effort-intensive motion capture systems such as Vicon. Due to its lighter weight and smaller dimension...

  • Article
  • Open Access
8 Citations
2,920 Views
15 Pages

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions

  • Anca Andreea Țurcanu,
  • Ecaterina Matei,
  • Maria Râpă,
  • Andra Mihaela Predescu,
  • Andrei-Constantin Berbecaru,
  • George Coman and
  • Cristian Predescu

21 September 2022

This research emphasizes the performance of some eco-friendly carbon materials as hydrochars (HC) obtained by the hydrothermal carbonization (HTC) process applied to walnut shell (WS) biowaste. These materials display promising properties that can be...

  • Article
  • Open Access
2 Citations
1,873 Views
31 Pages

Enhanced Pool Boiling via Binder-Jetting 3D-Printed Porous Copper Structures: CHF and HTC Investigation

  • Lilian Aketch Okwiri,
  • Takeshi Mochizuki,
  • Kairi Koito,
  • Noriaki Fukui and
  • Koji Enoki

15 July 2025

The escalating heat flux densities in high-performance electronics necessitate superior thermal management. This study enhanced pool-boiling heat transfer, a method offering high heat removal capacity, by leveraging Binder Jetting 3D Printing (BJ3DP)...

  • Article
  • Open Access
8 Citations
2,502 Views
16 Pages

Inhibition of Endothelial Inflammatory Response by HT-C6, a Hydroxytyrosol Alkyl Ether Derivative

  • Ana Dácil Marrero,
  • Laura Castilla,
  • Manuel Bernal,
  • Inmaculada Manrique,
  • Joel D. Posligua-García,
  • Federico Moya-Utrera,
  • Cristina Porras-Alcalá,
  • José Luis Espartero,
  • Francisco Sarabia and
  • Beatriz Martínez-Poveda
  • + 2 authors

Hydroxytyrosol (HT) is a bioactive phenolic compound naturally present in olives and extra virgin olive oil (EVOO) which is described as an antioxidant, antitumoral and antiangiogenic molecule. Previous studies of semi-synthetic HT-derivatives presen...

  • Article
  • Open Access
32 Citations
5,034 Views
9 Pages

21 June 2019

As a treatment method of sewage sludge, the hydrothermal carbonization (HTC) process was adopted in this work. HTC has a great advantage considering the economic efficiency of its process operation due to its reduced energy consumption and production...

  • Article
  • Open Access
1 Citations
1,866 Views
18 Pages

Upgrading Carthamus by HTC: Improvement of Combustion Properties

  • José Manuel Díaz-Rasero,
  • Beatriz Ledesma,
  • María Alonso and
  • Silvia Román

22 March 2024

This study investigated the fuel potential and combustion behavior of hydrochars derived from a unique precursor: Carthamus pomace. Initially, the hydrothermal carbonization process of this novel feedstock was examined across various temperature rang...

  • Article
  • Open Access
18 Citations
5,151 Views
17 Pages

28 April 2022

The presence of inorganic salts either as part of the substrate or added to the reaction medium are known to significantly affect the reaction pathways during hydrothermal carbonisation (HTC) of biomass. This work aims to understand the influence of...

  • Article
  • Open Access
27 Citations
5,182 Views
16 Pages

24 March 2021

Waste seaweed that is collected at coastal regions of maritime provinces in Canada is creating ecological problems as it promotes an anoxic event, which produces nearly zero dissolved oxygen in water along with hydrogen sulfide emission. The work don...

  • Article
  • Open Access
60 Citations
11,754 Views
14 Pages

Accuracy and Repeatability Tests on HoloLens 2 and HTC Vive

  • Inês Soares,
  • Ricardo B. Sousa,
  • Marcelo Petry and
  • António Paulo Moreira

Augmented and virtual reality have been experiencing rapid growth in recent years, but there is still no deep knowledge regarding their capabilities and in what fields they could be explored. In that sense, this paper presents a study on the accuracy...

  • Article
  • Open Access
13 Citations
4,753 Views
16 Pages

Hydrothermal carbonization (HTC) is a promising technology for wet manure treatment by converting animal manure into valuable fuels, materials, and chemicals. Among other HTC process parameters, the temperature influences HTC products the most. As va...

  • Article
  • Open Access
9 Citations
2,528 Views
14 Pages

Co-Hydrothermal Carbonization of Grass and Olive Stone as a Means to Lower Water Input to HTC

  • Rocío García-Morato,
  • Silvia Román,
  • Beatriz Ledesma and
  • Charles Coronella

One drawback of biomass hydrothermal treatment (HTC) is the need of a water supply, which is especially important in the case of lignocellulosic biomass. This study has investigated the synergy resulting from co-HTC of two residual biomass materials...

  • Article
  • Open Access
4 Citations
7,281 Views
22 Pages

What Killed HTC and Kept Apple Alive? Brand Sustainability Comparison of Two Asian Countries

  • Massoud Moslehpour,
  • Ka Yin Chau,
  • Alaleh Dadvari,
  • Ben-Roy Do and
  • Victoria Seitz

6 December 2019

Although brand sustainability is found essential for brand survival, establishing it has remained challenging. Brand sustainability requires a strong association between brand equity and consumer values. The current study attempts to discover critica...

  • Article
  • Open Access
23 Citations
5,069 Views
20 Pages

HTC of Wet Residues of the Brewing Process: Comprehensive Characterization of Produced Beer, Spent Grain and Valorized Residues

  • Mateusz Jackowski,
  • Lukasz Niedzwiecki,
  • Magdalena Lech,
  • Mateusz Wnukowski,
  • Amit Arora,
  • Monika Tkaczuk-Serafin,
  • Marcin Baranowski,
  • Krystian Krochmalny,
  • Vivek K. Veetil and
  • Halina Pawlak-Kruczek
  • + 2 authors

20 April 2020

Steady consumption of beer results in a steady output of residues, i.e., brewer’s spent grain (BSG). Its valorization, using hydrothermal carbonization (HTC) seems sensible. However, a significant knowledge gap regarding the variability of this...

  • Article
  • Open Access
10 Citations
3,219 Views
18 Pages

Cascade Membrane System for Separation of Water and Organics from Liquid By-Products of HTC of the Agricultural Digestate—Evaluation of Performance

  • Agnieszka Urbanowska,
  • Małgorzata Kabsch-Korbutowicz,
  • Christian Aragon-Briceño,
  • Mateusz Wnukowski,
  • Artur Pożarlik,
  • Lukasz Niedzwiecki,
  • Marcin Baranowski,
  • Michał Czerep,
  • Przemysław Seruga and
  • Gerrit Brem
  • + 2 authors

5 August 2021

New regulations aimed at curbing the problem of eutrophication introduce limitations for traditional ways to use the by-product of anaerobic digestion—the digestate. Hydrothermal carbonisation (HTC) can be a viable way to valorise the digestate in an...

  • Article
  • Open Access
4 Citations
7,649 Views
14 Pages

Impact of HIV Testing and Counseling (HTC) Knowledge on HIV Prevention Practices Among Traditional Birth Attendants in Nigeria

  • Alice Osuji,
  • Jennifer R. Pharr,
  • Uche Nwokoro,
  • Anulika Ike,
  • Christiana Ali,
  • Ogheneaga Ejiro,
  • John Osuyali,
  • Michael Obiefune,
  • Kevin Fiscella and
  • Echezona E. Ezeanolue

Nigeria is second in the world for the number of people with HIV and has a high rate of mother-to-child transmission (MTCT). Over 60% of births in Nigeria occur outside of health care facilities, and because of this, Traditional Birth Attendants (TBA...

  • Article
  • Open Access
4 Citations
2,585 Views
15 Pages

Valorization of Face Masks Produced during COVID-19 Pandemic through Hydrothermal Carbonization (HTC): A Preliminary Study

  • Gianluigi Farru,
  • Judy A. Libra,
  • Kyoung S. Ro,
  • Carla Cannas,
  • Claudio Cara,
  • Aldo Muntoni,
  • Martina Piredda and
  • Giovanna Cappai

10 June 2023

The COVID-19 pandemic has led to the increased use of disposable face masks worldwide, resulting in a surge of potentially infectious waste. This waste must be safely managed and disposed of to prevent the spread of the virus. To address this issue,...

  • Feature Paper
  • Review
  • Open Access
99 Citations
10,334 Views
33 Pages

Hydrothermal carbonization (HTC) is an innovative process capable of converting wet biodegradable residues into value-added materials, such as hydrochar. HTC has been studied for decades, however, a lack of detailed information on the production and...

  • Review
  • Open Access
23 Citations
7,593 Views
31 Pages

Challenges in Implementing Low-Latency Holographic-Type Communication Systems

  • Radostina Petkova,
  • Vladimir Poulkov,
  • Agata Manolova and
  • Krasimir Tonchev

8 December 2022

Holographic-type communication (HTC) permits new levels of engagement between remote users. It is anticipated that it will give a very immersive experience while enhancing the sense of spatial co-presence. In addition to the newly revealed advantages...

  • Article
  • Open Access
20 Citations
4,611 Views
14 Pages

Non-Energy Valorization of Residual Biomasses via HTC: CO2 Capture onto Activated Hydrochars

  • Katia Gallucci,
  • Luca Taglieri,
  • Alessandro Antonio Papa,
  • Francesco Di Lauro,
  • Zaheer Ahmad and
  • Alberto Gallifuoco

10 March 2020

This study aims to investigate the CO2 sorption capacity of hydrochar, obtained via hydrothermal carbonization (HTC). Silver fir sawdust was used as a model material. The batch runs went at 200 °C and up to 120 min. The hydrochar was activated wi...

  • Article
  • Open Access
8 Citations
3,086 Views
14 Pages

Sub- and Near-Critical Hydrothermal Carbonization of Animal Manures

  • Kyoung S. Ro,
  • Michael A. Jackson,
  • Ariel A. Szogi,
  • David L. Compton,
  • Bryan R. Moser and
  • Nicole D. Berge

22 April 2022

To produce hydrochar with less volatile matter (VM) and more fixed carbon (FC) to increase its stability, this study compared the hydrothermal carbonization (HTC) of hen (HM) and swine (SM) manures at typical HTC sub-critical temperature of 210 °...

  • Article
  • Open Access
18 Citations
4,286 Views
16 Pages

HTC-Grasp: A Hybrid Transformer-CNN Architecture for Robotic Grasp Detection

  • Qiang Zhang,
  • Jianwei Zhu,
  • Xueying Sun and
  • Mingmin Liu

Accurately detecting suitable grasp areas for unknown objects through visual information remains a challenging task. Drawing inspiration from the success of the Vision Transformer in vision detection, the hybrid Transformer-CNN architecture for robot...

  • Article
  • Open Access

20 January 2026

This study evaluates the environmental outcomes of integrating anaerobic digestion (AD) with pyrolysis (Py) and hydrothermal carbonization (HTC) to treat cattle slurry and grass silage in an Irish agricultural context. A consequential life cycle asse...

  • Review
  • Open Access
33 Citations
10,886 Views
40 Pages

Advances in Research and Technology of Hydrothermal Carbonization: Achievements and Future Directions

  • Giulia Ischia,
  • Nicole D. Berge,
  • Sunyoung Bae,
  • Nader Marzban,
  • Silvia Román,
  • Gianluigi Farru,
  • Małgorzata Wilk,
  • Beatrice Kulli and
  • Luca Fiori

Hydrothermal carbonization (HTC) has emerged as a pivotal technology in the battle against climate change and fosters circular economies. Operating within a unique reaction environment characterized by water as a solvent and moderate temperatures at...

  • Article
  • Open Access
9 Citations
3,465 Views
9 Pages

1 December 2021

Fall rates are increasing among the aging population and even higher falls rates have been reported in populations with neurological impairments. The Berg Balance Scale is often used to assess balance in older adults and has been validated for use in...

  • Feature Paper
  • Article
  • Open Access
89 Citations
8,448 Views
20 Pages

6 February 2019

Olive trimmings (OT) were used as feedstock for an in-depth experimental study on the reaction kinetics controlling hydrothermal carbonization (HTC). OT were hydrothermally carbonized for a residence time τ of up to 8 h at temperatures between 18...

  • Article
  • Open Access
26 Citations
7,530 Views
26 Pages

Business and Market Analysis of Hydrothermal Carbonization Process: Roadmap toward Implementation

  • Gianluigi Farru,
  • Fabiano Bisinella Scheufele,
  • Daniela Moloeznik Paniagua,
  • Fritz Keller,
  • Changyoon Jeong and
  • Daniele Basso

7 March 2024

This study assesses the status of hydrothermal carbonization (HTC) technology and identifies barriers hindering its commercial viability. Conducting a global survey among HTC companies (with a total of 24 surveys sent), the research evaluates the cur...

  • Feature Paper
  • Article
  • Open Access
1 Citations
1,522 Views
26 Pages

Heat Transfer Coefficient of a Building: A Constant with Limited Variability or Dynamically Variable?

  • Ljubomir Jankovic,
  • Grant Henshaw,
  • Christopher Tsang,
  • Xinyi Zhang,
  • Richard Fitton and
  • William Swan

24 April 2025

The heat transfer coefficient, or the HTC, is an industry-standard indicator of building energy performance. It is predicated on an assumption that it is of a constant value, and several different methods have been developed to measure and calculate...

  • Article
  • Open Access
11 Citations
2,523 Views
12 Pages

24 January 2023

Chars obtained from the hydrothermal carbonization (HTC) of agricultural wastes are increasingly being employed as solid biofuels. Their properties are strongly dependent on HTC process parameters. In this study, 13C solid-state NMR spectroscopy was...

  • Article
  • Open Access
16 Citations
4,061 Views
23 Pages

4 January 2021

A few studies on outdoor human thermal comfort (HTC) have been conducted in the tropical region in a hot and humid climate; however, there is a paucity of discussions on how exactly different spatial settings influence HTC. Thus, this paper aims to e...

  • Review
  • Open Access
17 Citations
4,995 Views
39 Pages

Research Needs and Pathways to Advance Hydrothermal Carbonization Technology

  • Chau Huyen Dang,
  • Giovanna Cappai,
  • Jae-Wook Chung,
  • Changyoon Jeong,
  • Beatrice Kulli,
  • Filippo Marchelli,
  • Kyoung S. Ro and
  • Silvia Román

24 January 2024

Hydrothermal carbonization (HTC) is a proven cost-effective and energy-efficient method for waste management and value-added product recovery. There are, however, several issues that require further improvement or research. Identifying the strengths...

  • Article
  • Open Access
10 Citations
2,731 Views
15 Pages

Recovery and Reuse of Valuable Chemicals Derived from Hydrothermal Carbonization Process Liquid

  • Abu-Taher Jamal-Uddin,
  • M. Toufiq Reza,
  • Omid Norouzi,
  • Shakirudeen A. Salaudeen,
  • Animesh Dutta and
  • Richard G. Zytner

8 January 2023

Recovery and reuse of valuable chemicals from hydrothermal carbonization process liquid (HTC-PL) from tomato plant biomass (TPB) was conducted. Different HTC-PLs were characterized with FTIR and Py-GC-MS analyses revealing the presence of low molecul...

  • Article
  • Open Access
69 Citations
12,798 Views
15 Pages

9 February 2021

Background: A case study is proposed to empirically test and discuss the eye-tracking status-quo hardware capabilities and limitations of an off-the-shelf virtual reality (VR) headset with embedded eye-tracking for at-home ready-to-go online usabilit...

  • Article
  • Open Access
19 Citations
4,635 Views
18 Pages

2 November 2020

Hydrothermal carbonization (HTC) reactor systems used to convert wet organic wastes into value-added hydrochar are generally classified in the literature as liquid water-based (HTC) or vapor-based (VTC). However, the distinction between the two is of...

  • Article
  • Open Access
12 Citations
2,231 Views
27 Pages

29 March 2024

Colombia is the world’s leading producer of mildly washed arabica coffee and produces 12.6 million bags of green coffee, but at the same time, 784,000 tons of waste biomass are dumped in open fields, of which only 5% is recovered or used. The o...

  • Article
  • Open Access
3 Citations
3,165 Views
23 Pages

6 September 2021

Mining activities under the circumstances of huge-thick stratum occurrence commonly result in dynamic response of the working face. It is crucial to understand the rock failure and movement of the huge-thick stratum in order to prevent dynamic hazard...

  • Feature Paper
  • Review
  • Open Access
22 Citations
5,841 Views
24 Pages

Biowaste Valorization Using Hydrothermal Carbonization for Potential Wastewater Treatment Applications

  • Anca Andreea Ţurcanu,
  • Ecaterina Matei,
  • Maria Râpă,
  • Andra Mihaela Predescu,
  • George Coman and
  • Cristian Predescu

29 July 2022

In today’s world, due to population increase, there are many alarming and potential catastrophic problems like climate change, environmental pollution and an enormous mass of wastes constantly produced by humankind to find innovative solutions...

  • Article
  • Open Access
762 Views
17 Pages

27 June 2025

Sitosterol (Sito) is a phytosterol with bioactive properties, including reducing atherosclerosis risk and anti-inflammatory and antitumoral effects. However, it can be oxidized by reactive oxygen species such as ozone (O3), producing oxyphytosterols...

  • Article
  • Open Access
273 Citations
24,995 Views
18 Pages

13 February 2017

In this paper, a hydrothermal carbonization (HTC) process is designed and modeled on the basis of experimental data previously obtained for two representative organic waste materials: off-specification compost and grape marc. The process accounts for...

  • Article
  • Open Access
144 Citations
8,849 Views
17 Pages

26 April 2019

Hydrothermal carbonisation (HTC) has been identified as a potential route for digestate enhancement producing a solid hydrochar and a process water rich in organic carbon. This study compares the treatment of four dissimilar digestates from anaerobic...

  • Article
  • Open Access
13 Citations
2,259 Views
18 Pages

18 May 2021

This paper presents results of research on unevenness of cylinder heating in a furnace for thermo-chemical treatment. Experimental research was conducted with respect to nitriding. Various heating speeds and settings of the fan operation in the furna...

  • Article
  • Open Access
7 Citations
3,620 Views
18 Pages

Miscanthus to Biocarbon for Canadian Iron and Steel Industries: An Innovative Approach

  • Trishan Deb Abhi,
  • Omid Norouzi,
  • Kevin Macdermid-Watts,
  • Mohammad Heidari,
  • Syeda Tasnim and
  • Animesh Dutta

25 July 2021

Iron-based industries are one of the main contributors to greenhouse gas (GHG) emissions. Partial substitution of fossil carbon with renewable biocarbon (biomass) into the blast furnace (BF) process can be a sustainable approach to mitigating GHG emi...

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