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34 Results Found

  • Article
  • Open Access
35 Views
29 Pages

Aerodynamic Design and Numerical Assessment of a 1.5 kW Helical Vertical-Axis Wind Turbine Using DMST and Three-Dimensional CFD

  • Sergio Neftalí Constantino Valdovinos,
  • José Rafael Dorrego Portela,
  • Víctor Iván Moreno Oliva,
  • Reynaldo Iracheta Cortez and ,
  • J. Eli Eduardo González-Durán,
  • Quetzalcoatl Hernandez-Escobedo,
  • Jesus Alejandro Franco and
  • Dante Ruiz-Robles
  • + 3 authors+ 0 author

6 November 2026

Helical vertical-axis wind turbines are well suited to small-scale distributed generation because they need no yaw mechanism and can operate effectively in changing wind conditions. However, their aerodynamic design requires comparing configurations...

  • Article
  • Open Access
36 Citations
4,361 Views
19 Pages

Streptococcus thermophiles DMST-H2 Promotes Recovery in Mice with Antibiotic-Associated Diarrhea

  • Jin-Shuang Hu,
  • Yan-Yan Huang,
  • Jia-Hua Kuang,
  • Jia-Jia Yu and ,
  • Qin-Yu Zhou and
  • Dong-Mei Liu
  • + 1 author+ 0 author

Antibiotic-associated diarrhea (AAD) is the most common side effect of antibiotics and is routinely treated with probiotics in clinical. Streptococcus thermophiles, extensively utilized for producing dairy foods, has recently been regarded as a new p...

(This article belongs to the Section Gut Microbiota)
  • Article
  • Open Access
2 Citations
1,622 Views
19 Pages

Experimental and Dynamic Modeling of a Variable-Pitch VAWT Using a Neural Network and the DMST Model

  • Luz M. Sanchez-Rivera,
  • Jorge Díaz-Salgado,
  • Oliver M. Huerta-Chávez and
  • Jesús García-Barrera

13 October 2025

The mathematical modeling and experimental validation of a non-conventional vertical-axis wind turbine (VAWT) with a variable-pitch angle are presented, employing the Double-Multiple Streamtube (DMST) method to simulate aerodynamic performance. The a...

(This article belongs to the Section Energy Science and Technology)
  • Article
  • Open Access
11 Citations
4,534 Views
15 Pages

20 January 2022

This study aimed to synthesize maltitol using recombinant CGTase from Bacillus circulans A11 with β-cyclodextrin (β-CD) and sorbitol as a glucosyl donor and acceptor, respectively, and assess its antibacterial activity. Optimal conditions f...

(This article belongs to the Collection Feature Papers in Synthetic Biology and Bioengineering)
  • Article
  • Open Access
1 Citations
1,435 Views
30 Pages

Airfoil Performance of Small-Scale Vertical Axis Wind Turbines Under Urban Low Wind Speeds Using DMST and LLFVW Models

  • Raul Alberto Bernal-Orozco,
  • Oliver Marcel Huerta-Chavez,
  • Daniel Enrique Constantino-Recillas and
  • Jorge Diaz-Salgado

11 February 2026

This work presents a comparative analysis of six airfoil profiles for small-scale vertical axis wind turbines (VAWTs) operating under low wind speeds (2–8 m/s) typical of urban environments. Aerodynamic performance during startup and nominal op...

(This article belongs to the Topic Advances in Wind Energy Technology: 2nd Edition)
  • Article
  • Open Access
9 Citations
4,117 Views
18 Pages

19 August 2025

This study investigates the aerodynamic performance of vertical axis wind turbines (VAWTs), focusing on a novel dual-airfoil morphing mechanism for H-type Darrieus turbines. By leveraging the aerodynamic benefits of two distinct airfoil profiles, the...

(This article belongs to the Special Issue Mechanical Design and Aerodynamic Optimization of Wind Turbine Components)
  • Article
  • Open Access
14 Citations
7,858 Views
26 Pages

Double-Multiple Streamtube Analysis of a Flexible Vertical Axis Wind Turbine

  • Lalit Roy,
  • Kellis Kincaid,
  • Roohany Mahmud and
  • David W. MacPhee

13 March 2021

Vertical-axis wind turbines (VAWTs) have drawn increased attention for off-grid and off-shore power generation due to inherent advantages over the more popular horizontal-axis wind turbines (HAWTs). Among these advantages are generator locale, omni-d...

(This article belongs to the Special Issue Wind and Wave Renewable Energy Systems)
  • Article
  • Open Access
27 Citations
7,873 Views
14 Pages

24 February 2022

The use of wind energy can be traced back thousands of years to many ancient times. Among the tools used for converting wind energy was the vertical-axis wind turbine (vawt). Investigating the performance of this type of turbine is an interesting top...

(This article belongs to the Section Energy Sustainability)
  • Article
  • Open Access
51 Citations
8,842 Views
23 Pages

Variable Pitch Approach for Performance Improving of Straight-Bladed VAWT at Rated Tip Speed Ratio

  • Zhenzhou Zhao,
  • Ruixin Wang,
  • Wenzhong Shen,
  • Tongguang Wang and ,
  • Bofeng Xu,
  • Yuan Zheng and
  • Siyue Qian
  • + 2 authors+ 0 author

11 June 2018

This paper presents a new variable pitch (VP) approach to increase the peak power coefficient of the straight-bladed vertical-axis wind turbine (VAWT), by widening the azimuthal angle band of the blade with the highest aerodynamic torque, instead of...

(This article belongs to the Special Issue Wind Turbine Aerodynamics)
  • Feature Paper
  • Article
  • Open Access
16 Citations
5,840 Views
30 Pages

24 June 2021

Low order models based on the Blade Element Momentum (BEM) theory exhibit modeling issues in the performance prediction of Vertical Axis Wind Turbines (VAWT) compared to Computational Fluid Dynamics, despite the widespread engineering practice of suc...

(This article belongs to the Collection Wind Energy: Current Challenges and Future Perspectives)
  • Article
  • Open Access
4 Citations
5,465 Views
20 Pages

Team Approaches to Addressing Sex Trafficking of Minors: Promising Practices for a Collaborative Model

  • Andrea Nichols,
  • Sarah Slutsker,
  • Melissa Oberstaedt and
  • Kourtney Gilbert

11 March 2023

The extant research literature is lacking in its focus on community-based responses (CBRs) to sex trafficking involving minors in the juvenile justice system. To address this research gap, the present study draws from 35 interviews with social servic...

(This article belongs to the Special Issue Frontiers in Organizing Processes: Collaborating against Human Trafficking/Modern Slavery for Impact and Sustainability)
  • Article
  • Open Access
11 Citations
3,766 Views
23 Pages

verA Gene is Involved in the Step to Make the Xanthone Structure of Demethylsterigmatocystin in Aflatoxin Biosynthesis

  • Hongmei Zeng,
  • Jingjing Cai,
  • Hidemi Hatabayashi,
  • Hiroyuki Nakagawa and ,
  • Hiromitsu Nakajima and
  • Kimiko Yabe
  • + 1 author+ 0 author

2 September 2020

In the biosynthesis of aflatoxin, verA, ver-1, ordB, and hypA genes of the aflatoxin gene cluster are involved in the pathway from versicolorin A (VA) to demethylsterigmatocystin (DMST). We herein isolated each disruptant of these four genes to deter...

(This article belongs to the Special Issue Molecular Biology and Chemistry of Mycotoxins and Phytotoxins)
  • Article
  • Open Access
5 Citations
10,295 Views
14 Pages

Inequalities in US Child Protection: The Case of Sex Trafficked Youth

  • Lisa Werkmeister Rozas,
  • Jason Ostrander and
  • Megan Feely

13 August 2018

This article demonstrates how structural social work theory and critical consciousness development can be used to help facilitate a transition from a deficit model approach to an inequities perspective in a child welfare system that was working to im...

(This article belongs to the Special Issue Child Protection and Social Inequality)
  • Article
  • Open Access
1 Citations
1,202 Views
20 Pages

14 August 2025

Accurate prediction of effluent quality indicators is essential for ensuring stable operation and regulatory compliance in wastewater treatment plants. However, the inherent spatial distribution and temporal fluctuations of wastewater processes prese...

(This article belongs to the Special Issue Advances in Machine Learning and Symmetry/Asymmetry)
  • Article
  • Open Access
15 Citations
4,260 Views
17 Pages

Performance Enhancement of H-Type Darrieus VAWT Using a Hybrid Method of Blade Pitch Angle Regulation

  • Mahmood Abduljabbar Hammad,
  • Abdelgadir Mohamed Mahmoud,
  • Ahmed M. Abdelrhman and
  • Shamsul Sarip

15 August 2024

Blade pitch angle regulation is an effective approach to enhance the performance of H-type Darrieus Vertical Axis Wind Turbines (VAWTs). Improving the blade interaction with the wind for this type of rotor is a challenging task, especially in unstead...

(This article belongs to the Section A3: Wind, Wave and Tidal Energy)
  • Article
  • Open Access
1 Citations
1,397 Views
24 Pages

Numerical Analysis of a Vertical Axis Wind Turbine with Racetrack Trajectory

  • Sixiong Ge,
  • Yan Yan,
  • Zhecheng Lou,
  • Jie Xu and ,
  • Zhehao Sheng and
  • Jiahuan Cui
  • + 1 author+ 0 author

17 November 2025

This study presents a comprehensive numerical and theoretical analysis comparing the aerodynamic performance of a racetrack trajectory vertical axis wind turbine with a baseline VAWT. The racetrack trajectory comprises two parallel straight segments...

(This article belongs to the Section Marine Energy)
  • Article
  • Open Access
86 Citations
11,067 Views
17 Pages

Gamma-aminobutyric acid (GABA), the inhibitory neurotransmitter, can be naturally synthesized by a group of lactic acid bacteria (LAB) which is commonly found in rich carbohydrate materials such as fruits and fermented foods. Thirty-six isolates of G...

(This article belongs to the Special Issue Microbial Isolation and Characterization)
  • Article
  • Open Access
541 Views
21 Pages

12 June 2026

The construction cost of an offshore wind farm collection system accounts for 15–30% of the total investment, and its efficient design is crucial to the economy; however, traditional methods in large-scale scenarios suffer from slow convergence...

(This article belongs to the Special Issue Artificial Intelligence and Game Theory)
  • Article
  • Open Access
1 Citations
587 Views
17 Pages

Subchronic Cannabidiol (CBD) Treatment During the Silent Period Fails to Prevent Increased Seizure Susceptibility Following Lithium-Pilocarpine-Induced Status Epilepticus

  • Claudia Taborda Gómez,
  • Florencia Fernández,
  • Agustín Jara,
  • Natalia Borda and ,
  • Franco Moscovicz,
  • Yessenia Yauri-Huaman,
  • Rodrigo Caceres-Robles,
  • Luis F. Pacheco-Otalora,
  • Alberto Lazarowski and
  • Jerónimo Auzmendi
  • + 5 authors+ 0 author

11 August 2026

Introduction. In recent years, cannabidiol (CBD) has been used as an adjunct therapy to anti-seizure medications for the control of seizures in patients with drug-resistant epilepsy. In addition to its anticonvulsant effect, CBD also has well-defined...

(This article belongs to the Special Issue Exploring the Cellular and Molecular Mechanisms Underlying Epilepsy)
  • Article
  • Open Access
9 Citations
3,353 Views
22 Pages

Genomic Characterization and Safety Evaluation of Enterococcus lactis RB10 Isolated from Goat Feces

  • Nattarika Chaichana,
  • Sirikan Suwannasin,
  • Jirasa Boonsan,
  • Thunchanok Yaikhan and ,
  • Chollachai Klaysubun,
  • Kamonnut Singkhamanan,
  • Monwadee Wonglapsuwan,
  • Rattanaruji Pomwised,
  • Siriwimon Konglue and
  • Komwit Surachat
  • + 7 authors+ 2 authors

Background: The genus Enterococcus includes a diverse group of bacteria that are commonly found in the gastrointestinal tracts of humans and animals, as well as in various environmental habitats. Methods: In this study, Enterococcus lactis RB10, isol...

  • Proceeding Paper
  • Open Access
1 Citations
2,531 Views
5 Pages

Aerodynamic Design of a Small-Scale Model of a Vertical Axis Wind Turbine

  • Andrés Meana-Fernández,
  • Jesús Manuel Fernández Oro,
  • Katia María Argüelles Díaz,
  • Mónica Galdo-Vega and
  • Sandra Velarde-Suárez

1 November 2018

Wind tunnel testing of small-scale models is one of the most useful techniques to predict the performance of real-scale applications. In this work, the aerodynamic design and the construction of a small-scale model of a straight-bladed vertical axis...

(This article belongs to the Proceedings of The 2nd International Research Conference on Sustainable Energy, Engineering, Materials and Environment)
  • Article
  • Open Access
20 Citations
6,489 Views
17 Pages

Culturable Bacterial Community on Leaves of Assam Tea (Camellia sinensis var. assamica) in Thailand and Human Probiotic Potential of Isolated Bacillus spp.

  • Patthanasak Rungsirivanich,
  • Witsanu Supandee,
  • Wirapong Futui,
  • Vipanee Chumsai-Na-Ayudhya and ,
  • Chaowarin Yodsombat and
  • Narumol Thongwai
  • + 1 author+ 0 author

Assam tea plants (Camellia sinensis var. assamica) or Miang are found in plantations and forests of Northern Thailand. Leaf fermentation has been performed for centuries, but little information is available about their associated microbial community....

(This article belongs to the Special Issue Microbial Isolation and Characterization)
  • Article
  • Open Access
4 Citations
4,569 Views
13 Pages

Anti-Salmonella Activity of a Novel Peptide, KGGDLGLFEPTL, Derived from Egg Yolk Hydrolysate

  • Thippawan Pimchan,
  • Fu Tian,
  • Kanjana Thumanu,
  • Sureelak Rodtong and
  • Jirawat Yongsawatdigul

The present study aimed to characterize the mode of action of a novel antimicrobial peptide isolated from egg yolk hydrolysate. The EYHp6, KGGDLGLFEPTL, exhibited inhibition against Salmonella enterica serovar Typhimurium TISTR 292 and S. enterica se...

(This article belongs to the Special Issue Insights into Natural Antimicrobial Peptides)
  • Article
  • Open Access
169 Views
26 Pages

20 October 2026

This paper presents a hierarchical coordination and safety-filtering framework for connectivity-aware cooperative multi-UAVnavigation in obstacle-dense corridor environments. The architecture separates low-rate centralized team coordination from high...

(This article belongs to the Special Issue Flight Guidance and Control (2nd Edition))
  • Article
  • Open Access
11 Citations
3,281 Views
17 Pages

Molecular Insights into the Mode of Action of Antibacterial Peptides Derived from Chicken Plasma Hydrolysates

  • Fu Tian,
  • Sureelak Rodtong,
  • Kanjana Thumanu,
  • Yanling Hua and ,
  • Sittiruk Roytrakul and
  • Jirawat Yongsawatdigul
  • + 1 author+ 0 author

9 November 2022

Due to the overuse and abuse of antibiotics, several antibiotic resistant bacteria have emerged. Antimicrobial peptides (AMPs) have gained attention as alternative antimicrobial agents because of their unique mode of action that impedes bacterial res...

(This article belongs to the Section Food Biotechnology)
  • Article
  • Open Access
12 Citations
8,067 Views
18 Pages

Aerodynamic Simulations for Floating Darrieus-Type Wind Turbines with Three-Stage Rotors

  • Mohamed Amine Dabachi,
  • Abdellatif Rahmouni,
  • Eugen Rusu and
  • Otmane Bouksour

Growing energy demand is causing a significant decrease in the world’s hydrocarbon stock in addition to the pollution of our ecosystem. Based on this observation, the search for alternative sorts of energy to fossil fuels is being increasingly...

(This article belongs to the Section Inventions and Innovation in Energy and Thermal/Fluidic Science)
  • Article
  • Open Access
1 Citations
2,542 Views
21 Pages

Enhanced Antibacterial and Anti-Inflammatory Activities of the Combination of Cannabis sativa and Propolis Extracts: An In Vitro Study

  • Naruemon Perstwong,
  • Wongsakorn Phongsopitanun,
  • Visarut Buranasudja and
  • Sornkanok Vimolmangkang

19 November 2025

Sore throat, commonly associated with pharyngitis and tonsillitis, is primarily caused by bacterial pathogens. Conventional therapies rely on antibiotics and anti-inflammatory drugs; however, concerns about adverse effects, antibiotic resistance, and...

(This article belongs to the Special Issue Medicinal Plant Resources—from Molecular Studies to Sustainable Use)
  • Article
  • Open Access
586 Views
24 Pages

Improvement of the Aerodynamic Performance of a Darrieus Vertical-Axis Wind Turbine Using a Passive Deflector in Urban Environments

  • Beatriz Salvador-Gutierrez,
  • Lozano Sanchez-Cortez,
  • Lincold Dante-Salvatierra,
  • Guillermo Casanova-Gonzalez and ,
  • Jorge Montaño-Pisfil,
  • Roberto Solis-Farfan,
  • Alex Vallejos-Zuta,
  • Cesar Santos-Mejia,
  • Gabriel Tirado-Mendoza and
  • Olger Ortega-Achata
  • + 7 authors+ 2 authors

17 June 2026

The integration of wind energy into urban environments is constrained by low wind speeds, high turbulence, and the recurrent negative torque experienced by lift-driven vertical-axis wind turbines (VAWTs). This study specifically evaluates a straight-...

(This article belongs to the Special Issue Renewable Energy as a Mechanism for Managing Sustainable Development)
  • Article
  • Open Access
13 Citations
3,858 Views
24 Pages

9 August 2022

The wide use of energy-efficient district heating systems allows for decreased atmospheric pollution resulting from lower emissions. One of the ways to increase the efficiency of existing district heating systems, and a key element of new systems usi...

(This article belongs to the Special Issue Phase Change Materials: The Ideal Solution for Thermal Management)
  • Article
  • Open Access
13 Citations
5,011 Views
18 Pages

Actinomycins from Soil-Inhabiting Streptomyces as Sources of Antibacterial Pigments for Silk Dyeing

  • Tananya Nuanjohn,
  • Nungruthai Suphrom,
  • Nareeluk Nakaew,
  • Wasu Pathom-Aree and ,
  • Nattha Pensupa,
  • Apiradee Siangsuepchart,
  • Bernard Dell and
  • Juangjun Jumpathong
  • + 3 authors+ 0 author

8 August 2023

Actinobacteria produce a broad spectrum of bioactive substances that are used in the pharmaceutical, agricultural, and biotechnology industries. This study investigates the production of bioactive substances in Streptomyces, isolated from soil under...

(This article belongs to the Section Colorants)
  • Article
  • Open Access
1 Citations
1,780 Views
28 Pages

2 November 2025

Background/Objectives: Streptococcus suis is a zoonotic pathogen that causes infections in pigs and humans, leading to significant economic losses. S. suis can evade the immune system of hosts and induce persistent infections. Early detection and vac...

(This article belongs to the Section Veterinary Vaccines)
  • Article
  • Open Access
24 Citations
19,729 Views
14 Pages

Anti-Aging, Anti-Acne, and Cytotoxic Activities of Houttuynia cordata Extracts and Phytochemicals Analysis by LC-MS/MS

  • Santi Phosri,
  • Kanokwan Kiattisin,
  • Aekkhaluck Intharuksa,
  • Raveeporn Janon and ,
  • Tanat Na Nongkhai and
  • Tinnakorn Theansungnoen
  • + 1 author+ 0 author

7 December 2022

Although many biological properties of Houttuynia cordata have been found, its anti-aging and anti-acne effects have not yet been investigated. This study was aimed to evaluate the in vitro anti-aging and anti-acne activities of H. cordata extracts a...

  • Review
  • Open Access
13 Citations
12,005 Views
29 Pages

A Comparative Review of Vertical Axis Wind Turbine Designs: Savonius Rotor vs. Darrieus Rotor

  • Alina Fazylova,
  • Kuanysh Alipbayev,
  • Alisher Aden,
  • Fariza Oraz and ,
  • Teodor Iliev and
  • Ivaylo Stoyanov
  • + 1 author+ 0 author

This paper reviews and analyzes three types of vertical-axis wind rotors: the classic Savonius, spiral Savonius, and Darrieus designs. Using numerical modeling methods, including computational fluid dynamics (CFD), their aerodynamic characteristics,...

(This article belongs to the Section Inventions and Innovation in Energy and Thermal/Fluidic Science)
  • Article
  • Open Access
8 Citations
7,797 Views
21 Pages

In Vitro Cytotoxicity and Antimicrobial Activity against Acne-Causing Bacteria and Phytochemical Analysis of Galangal (Alpinia galanga) and Bitter Ginger (Zingiber zerumbet) Extracts

  • Tanat Na Nongkhai,
  • Sarah E. Maddocks,
  • Santi Phosri,
  • Sarita Sangthong and ,
  • Punyawatt Pintathong,
  • Phanuphong Chaiwut,
  • Kasemsiri Chandarajoti,
  • Lutfun Nahar,
  • Satyajit D. Sarker and
  • Tinnakorn Theansungnoen
  • + 5 authors+ 0 author

10 October 2024

Galangal (Alpinia galanga (L.) Willd) and bitter ginger (Zingiber zerumbet (L.) Roscoe) are aromatic rhizomatous plants that are typically used for culinary purposes. These rhizomatous plants have many biological properties and the potential to be be...

(This article belongs to the Special Issue Natural Compounds: Advances in Antimicrobial Activity)