Results 61 to 70 of about 11,282 (264)

Sustainable Water Systems in Space: A Review of Current Technologies and Future Prospects

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract Sustainable water management is a critical challenge in space exploration, where the limited availability of resources requires innovative approaches to ensure astronauts' survival on long‐duration missions. This narrative review explores the key technologies and methods involved in water recycling, in situ resource utilization (ISRU), and ...
David Bamidele Olawade   +2 more
wiley   +1 more source

Flexible Thermoelectrics for Wearable Electronics: Trends and Benchmarks in Solid‐State and Ionic Materials, Textile Architectures, Interface Engineering, and Device Performance

open access: yesAdvanced Electronic Materials, Volume 12, Issue 2, 21 January 2026.
Thermoelectric generators (TEGs) convert waste heat into electricity for self‐powered and wearable electronics. This review highlights advances in flexible, hybrid, and ionic thermoelectric materials, emphasizing ionic thermopower control, textile integration, and hybrid TEG–supercapacitor systems for combined harvesting, sensing, and storage.
Kaliyannan Manojkumar   +5 more
wiley   +1 more source

Light Up a Nanocluster

open access: yesAggregate, Volume 7, Issue 1, January 2026.
Atomically precise metal nanoclusters are ultrasmall aggregates of metal atoms with finely tunable structures. They exhibit broad PL across visible to NIR wavelengths by tuning size, structure, and composition. The review addresses fundamental emission mechanisms and structure–property correlations, evaluating enhancement strategies (ligand ...
Xiuling Guo   +4 more
wiley   +1 more source

The Effects of Non-uniform Distribution of Oxidizer Flow on High-Frequency Combustion Instability

open access: yesMATEC Web of Conferences, 2019
The numerical calculation of three-dimensional unsteady combustion for the combustion chamber of LOX/kerosene high pressure staged combustion rocket engine was carried out.
Chen Peng   +5 more
doaj   +1 more source

Influence of Polyisobutylene Kerosene Additive on Combustion Efficiency in a Liquid Propellant Rocket Engine

open access: yes, 2019
The combustion of kerosene with the polymer additive polyisobutylene (PIB) was experimentally investigated. The aim of the study was to measure the effect of PIB kerosene on the efficiency of combustion chamber cooling and the combustion efficiency of ...
I. Borovik   +6 more
semanticscholar   +1 more source

Lithium Nitrate Effects for Lithium‐Based Chemical Batteries: A Review

open access: yesCarbon Energy, Volume 8, Issue 1, January 2026.
Lithium nitrate (LiNO3) has been widely used to address uneven Li plating/stripping and stabilize the Li/electrolyte interface, and to date, many strategies on how to use nitrates have been explored. This review focuses attention on the effects of LiNO3 in lithium‐based batteries, aiming to provide scientific guidance for the optimization of electrode ...
Xianshu Wang   +8 more
wiley   +1 more source

Factors Affecting Characteristic Length of the Combustion Chamber of Liquid Propellant Rocket Engines

open access: yesMehran University Research Journal of Engineering and Technology, 2019
Optimum characteristic length of the combustion chamber of liquid rocket engine is very important to get higher energy from the liquid propellants. Characteristic length is defined by the time required for complete burning of fuel.
Tajwali Khan, Ihtzaz Qamar
doaj  

An Experimental Study of the Relative Sensitivity to Oxidative Aging of NaBH4‐promoted Green Hypergolic Fuels

open access: yesPropellants, Explosives, Pyrotechnics, Volume 51, Issue 1, Page 97-107, January 2026.
ABSTRACT Conventional hypergolic propellants cause technical problems due to their toxicity and carcinogenic properties, which increase development costs and lead to significant environmental issues. These challenges can be addressed by incorporating additives with low‐toxicity fuels to render them hypergolic.
Kyounghwan Lee   +4 more
wiley   +1 more source

Efficient Temperature Control of Lithium‐Ion Battery Through an Ambient Cooling Model

open access: yesInternational Journal of Electrochemistry, Volume 2026, Issue 1, 2026.
There exists a long‐standing challenge on how to cool down the heat released from a lithium‐ion battery. Usually researchers adopted expensive techniques for battery cooling. This study attempts to propose an ambient cooling model using electrochemical and thermodynamic principles to address this issue. A standard lithium‐ion battery is used.
Salman Farsi   +2 more
wiley   +1 more source

Analysis of the Ballistic Performance of a Balanced Gun With a New Type of Main and Auxiliary Chambers

open access: yesJournal of Applied Mathematics, Volume 2026, Issue 1, 2026.
Increasing the initial velocity of large‐caliber, high‐mass projectiles remains a persistent challenge in military weapon design. To address this, we developed a novel main–auxiliary chamber configuration based on the balanced gun concept. An internal ballistic model incorporating this dual‐chamber structure was established to evaluate its ballistic ...
Zijie Li   +5 more
wiley   +1 more source

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