Results 101 to 110 of about 591 (257)

Burning Rate Measurement of KNSu Propellant Obtained by Mechanical Press

Journal of Aerospace Technology and Management, 2015
The potassium nitrate (KNO3)/sucrose (C12H22O11) propellant, known as KNSu, is traditionally used in rocket studies by amateur groups. Performance tests of KNSu, whose composition is 65 wt% KNO3 and 35wt% C12H22O11, cold-manufactured by mechanical press,
Antônio Carlos Foltran, Diego Fernando Moro, Nicholas Dicati Pereira da Silva, Ana Eliza Gonçalves Ferreira, Luciano Kiyoshi Araki, Carlos Henrique Marchi   +5 more
doaj  

Convergence Clubs in Corporate Sustainability: Identifying Industry and Risk‐Level ESG Convergence Patterns in S&P 500 Firms

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Despite the growing emphasis on corporate sustainability, it remains unclear whether firms will align with common ESG standards. The Phillips–Sul convergence methodology, in combination with dynamic time‐warping clustering, was utilized to analyze the ESG trajectories of 430 S&P 500 firms from 2019 to 2024.
Abdullah Kürşat Merter, Yavuz Selim Balcıoğlu   +1 more
wiley   +1 more source

CSR Sustainability Reporting and Enterprise Value: The Moderating Role of Regulatory Quality in the European Policy Landscape

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The study looks into the relationship between the extent of CSR Sustainability Reporting and Enterprise Value (EV) among European listed companies. The introduction of the Corporate Sustainability Reporting Directive (CSRD) 2022/2464/EU and the European Sustainability Reporting Standards (ESRS) has significantly heightened the demand for ...
Chiara Pia Saraò, Antonietta Trecca, Christian Favino, Antonio Corvino   +3 more
wiley   +1 more source

NUMERICAL STUDIES ON FLOW BEHAVIOR OF COMPOSITE PROPELLANT SLURRY DURING VACUUM CASTING DOI 10.5028/jatm.2012.04021212

Journal of Aerospace Technology and Management, 2012
Rockets are powered by composite solid propellant, which is a heterogeneous system consisting of solid oxidizer and metallic fuel dispersed in a polymeric fuel binder matrix.
Praveen Prakash Singh, Bikash Bhattacharya, Bejoy Thiyyarkandy, Mukesh Jain, Ganesh Shankar Dombe, Mehilal Mehilal   +5 more
doaj  

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Recent Advance for PVDF Based Flexible Piezoelectric Sensors

EcoEnergy, EarlyView.
This review focus on the structural regulation of PVDF via boundary confinement, blending regulation, electric‐field‐assisted orientation, and chemical modification for flexible piezoelectric sensors. ABSTRACT The rapid advancement of flexible electronics, wearable devices, and biomedical engineering has spurred increasing demand for sensor materials ...
Chaoran Tan, Aokai Yang, Yuyang Ling, Meilin Liu, Liang Huang   +4 more
wiley   +1 more source

A Critical Review of Electrolytes for Sodium‐Zinc Hybrid Ion Batteries: From Liquid to Solid

EcoEnergy, EarlyView.
This review systematically discusses the evolutionary roadmap of electrolytes from liquid to quasi‐solid and ultimately to all‐solid‐state structures for aqueous sodium‐zinc hybrid ion batteries (ASZIBs), which focuses the critical bottlenecks of uncontrolled dual‐ion transport and interfacial incompatibility, and proposes corresponding countermeasures
Jiao Huang, Guangni Ding, Bingyi Lu, Xian‐Xiang Zeng   +3 more
wiley   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

Advances in Design Strategy and Mechanism Insights for Alkaline Hydrogen Evolution Reaction: Multilevel Site Engineering and Structure–Activity Relationship

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review is about material design based on engineering multilevel sites from theoretical calculation and synthetic routes to mechanism, structure–activity relationship, challenges and perspectives for boosting hydrogen production in alkaline electrolyte. Electrolytic water splitting is a clean, carbon‐free method for producing green hydrogen and has
Ke Zhang, Hongying Luo, Yudong Du, Kehao Yu, Huayu Wu, Shimin Chai, Yanyan Liu, Yongfeng Wang, Jianchun Jiang, Baojun Li   +9 more
wiley   +1 more source

Advances in Sulfur Cathodes for High‐Energy All‐Solid‐State Lithium Batteries With Sulfide Solid Electrolytes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes the key optimization strategies and challenges for all‐solid‐state lithium–sulfur batteries based on sulfide solid‐state electrolytes, covering electrolyte synthesis, cathode design, interface engineering, and industrialization considerations.
Yongsheng Gao, Hui Shao, Yuan Li, Baojuan Xi, Shenglin Xiong, Jinkui Feng   +5 more
wiley   +1 more source