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Application of Particle Size Distribution Engineering and Nano-technology to Cement Recipes for some Iranian Offshore Oilfields

Yaser Pourmazaheri, Hamid Soltanian • Journal of Petroleum Science and Technology (2015)

The design of cement slurry for horizontal wellbores is challenging as it must present very high quality cement slurry properties e.g. zero free water, less than 50 cc API fluid loss value, appropriate rheology and yield point for effective...

DOAJ Open Access (DOAJ) DOI: 10.22078/jpst.2015.504

Advances of aptamers in esophageal cancer diagnosis, treatment and drug delivery

Yang Fei, Hui Xu, Chunwei Zhang, Jingjing Wang et al. • Beilstein Journal of Nanotechnology (2025)

Esophageal cancer (EC) is a common malignant tumor of the digestive tract with poor prognosis and high mortality. The early diagnosis of EC mainly depends on endoscopic diagnosis, which not only needs to bear certain economic pressure, but ...

DOAJ Open Access (DOAJ) DOI: 10.3762/bjnano.16.121

Establishing a pure antiferroelectric PbZrO3 phase through tensile epitaxial strain

Krina Parmar, Pauline Dufour, Emma Texier, Cécile Carrétéro et al. • Nature Communications (2025)

Abstract The nature of lead zirconate, the historical antiferroelectric material, has recently been challenged. In PbZrO3 epitaxial films, thickness reduction engenders competition among antiferroelectric, ferrielectric and ferroelectric ph...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41467-025-61867-y

Gold nanoparticles synthesized from Bacopa monneri plant extract: Bovine serum albumin protein interactions and antibacterial effectiveness

Pranita Rananaware, H. Swetha, Varsha Brahmkhatri • Next Nanotechnology (2025)

Gold nanoparticles (AuNPs) are widely used in various scientific and technological domains, particularly biomedicine due to their superior biocompatibility. This study focuses on the synthesis of biogenic gold nanoparticles (B-Au) and chemo...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.nxnano.2025.100305

Chitosan nanoparticles as next-generation carriers for veterinary DNA vaccines: Mechanisms, immune responses, and translational prospects

Miguel González-Lozano, José Alberto Cano-Buendía • Veterinary World (2025)

Background and Aim: Chitosan-based DNA nanoparticles have emerged as a promising next-generation platform for veterinary vaccines, addressing several limitations of conventional attenuated, inactivated, and recombinant formulations. Chitosa...

DOAJ Open Access (DOAJ) DOI: 10.14202/vetworld.2025.3826-3838

Stability Mechanism and Repair Method of U-Shaped Steel Reverse Arch Support in Soft Floor Roadway

Chao Wang, Xiaoyi Chen, Jiandong Zhang, Yongping Wu • Advances in Civil Engineering (2020)

This paper is aimed at the inverted arch support instability of track roadway with mining level +1100 m in Liuyuanzi Coal Mine. By means of field investigation, theoretical analysis, numerical calculation, and engineering practice, the inst...

DOAJ Open Access (DOAJ) DOI: 10.1155/2020/8814365

Research on automatic roadway formation and surrounding rock stability control technology by roof cutting and pressure relief in Qianyingzi Coal Mine

Aiguo SUN, Haitao LI, Xuezheng CHENG, Yi WANG et al. • Meikuang Anquan (2024)

According to the engineering geological characteristics and production technology level of Qianyingzi Coal Mine, the stability control technology of surrounding rock of the cutting roof and pressure relief roadway is proposed. For the advan...

DOAJ Open Access (DOAJ) DOI: 10.13347/j.cnki.mkaq.20231069

Analysis of Hendra Virus Fusion Protein N-Terminal Transmembrane Residues

Chelsea T. Barrett, Hadley E. Neal, Kearstin Edmonds, J. Lizbeth Reyes Zamora et al. • Viruses (2021)

Hendra virus (HeV) is a zoonotic enveloped member of the family Paramyoxviridae. To successfully infect a host cell, HeV utilizes two surface glycoproteins: the attachment (G) protein to bind, and the trimeric fusion (F) protein to merge th...

DOAJ Open Access (DOAJ) DOI: 10.3390/v13122353

From Flame Extinguishment to Reignition Control: Fire Suppressants, Sustained Cooling Mechanisms, and Fire-Safety Challenges in Lithium-Ion Battery Fires

Qiqi Yang, Qingwen Lin, Ruichao Wei, Jiaxin Gao et al. • Batteries (2026)

Lithium-ion battery fires are governed by continuous heat release during thermal runaway, flammable gas venting, and thermal coupling between adjacent cells. Even after visible flames are extinguished, post-extinguishment temperature rise, ...

DOAJ Open Access (DOAJ) DOI: 10.3390/batteries12080305

Advancements in Ni‐based Catalysts for Direct Urea Fuel Cells: A Comprehensive Review

Yulia M. T. A. Putri, Muhammad I. Syauqi, Isnaini Rahmawati, Aliyah Aliyah et al. • ChemElectroChem (2024)

Abstract The growing demand for sustainable energy sources has spurred significant studies to optimize the potency of fuel cell technology. Direct urea fuel cell (DUFC) has gained attention due to their energy density, eco‐friendliness, and...

DOAJ Open Access (DOAJ) DOI: 10.1002/celc.202300637

Development, modelling and optimization of process parameters on the tensile strength of aluminum, reinforced with pumice and carbonated coal hybrid composites for brake disc application

Tanimu Kogi Ibrahim, Danjuma Saleh Yawas, Julius Thaddaeus, Bashar Danasabe et al. • Scientific Reports (2024)

Abstract This study focuses on optimizing double stir casting process parameters to enhance the tensile strength of hybrid composites comprising aluminum alloy, brown pumice, and coal ash, intended for brake disc applications. Analytical te...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-024-67476-x

Multipoint boundary value problems for higher-order Hadamard fractional neutral differential equations and inclusions

Qing Zhang, Chunshuo Li, Lina Zhou, Qiaoluan Li • Boundary Value Problems (2023)

Abstract In this paper, we consider fractional neutral differential equations with multipoint boundary value conditions involving Hadamard derivatives and integrals. We obtain the existence and uniqueness of the solution of the equation by ...

DOAJ Open Access (DOAJ) DOI: 10.1186/s13661-023-01697-3

A First-principles analysis of Structural, Electronic, Elastic, and vacant properties of BCC, FCC and HCP tungsten at different electronic temperatures

X.B. Ye, B.C. Pan • Nuclear Materials and Energy (2023)

Since tungsten (W) was considered as the most promising plasma facing materials (PFMs) in fusion reactors, there has been extensive research on the physical performance of W-PFMs. It is found that under the extreme conditions in a fusion re...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.nme.2023.101447

Role of hypothetical protein PA1-LRP in antibacterial activity of endolysin from a new Pantoea phage PA1

Ye Tian, Xinyan Xu, Munazza Ijaz, Ying Shen et al. • Frontiers in Microbiology (2024)

IntroductionPantoea ananatis has emerged as a significant plant pathogen affecting various crops worldwide, causing substantial economic losses. Bacteriophages and their endolysins offer promising alternatives for controlling bacterial infe...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmicb.2024.1463192

Space and National Security: Points of interaction, Opportunities and Issue of Priority

Volodymyr Neskorozhenyi, Volodymyr Zakharov, Alexander Slyusarenko • Advanced Space Law (2024)

The article reveals the importance of space for national security. The points of interaction between space activities and national security are identified, which reflect the growing importance of outer space for ensuring the security of Sta...

DOAJ Open Access (DOAJ) DOI: 10.29202/asl/13/9

How working capital management affects financial sustainability in airline groups centered in the European market

Berk Yildiz, Gulden Oner • European Transport Research Review (2026)

Abstract Air transport has become the dominant mode of passenger mobility worldwide, yet airline groups remain highly vulnerable to financial distress because of volatile demand, high fixed costs, and exposure to systemic shocks. This study...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12544-026-00865-7

THE IMPACT OF SOCIO-ECONOMIC FACTORS ON THE EFFECTIVENESS OF PUBLIC ACCOUNTABILITY FRAMEWORKS IN THE EU

Ana-Maria Coatu, Felix-Angel Popescu, Laurențiu Petrila • Agora International Journal of Economical Sciences (2025)

This study explores how socio-economic factors affect the effectiveness of public accountability frameworks in EU member states, with Romania as a case study. Using data from the World Bank, Eurobarometer, and cross-country comparisons, it ...

DOAJ Open Access (DOAJ) DOI: 10.15837/aijes.v19i1.7142

Kazakhstan's Banking Sector: Between Domestic Regulation and Macroeconomic Trends

Makpal Nurpeissova, Gaukhar Saimagambetova, Aizhan Omarova, Bibigul Saubetova et al. • Eurasian Journal of Economic and Business Studies (2025)

The banking sector plays a fundamental role in economic stability and development by facilitating financial intermediation, credit allocation, and liquidity management. In emerging economies such as Kazakhstan, the financial system is chara...

DOAJ Open Access (DOAJ) DOI: 10.47703/ejebs.v69i1.464

Online Classification of Road Roughness Conditions with Vehicle Unsprung Mass Acceleration by Sliding Time Window

Zhongxing Li, Wenhao Yu, Xiaoli Cui • Shock and Vibration (2018)

Suspension control systems are in need for more information of road roughness conditions to improve their performance under different roads. Existing methods of gauging road roughness are limited, and they usually involve visual inspections...

DOAJ Open Access (DOAJ) DOI: 10.1155/2018/5131434