Results 61 to 70 of about 25,713 (266)

First Vasectomy Procedure Successfully Performed on a Southern African Male Giraffe (Giraffa camelopardalis giraffa)

Zoo Biology, EarlyView.
First successful vasectomy in a southern African male giraffe, Giraffa camelopardis giraffa ABSTRACT This study reports the first successful vasectomy on a southern African male giraffe (Giraffa camelopardalis giraffa). The goal of the procedure was to create a teaser male for reproductive studies.
Francois Deacon, Willem Daffue, Edward Collin Albertyn, Susanna Maria Krüger, Ayanda Maqhashu, Jacquiline Goedhals, Andri Grobbelaar, Marike Badenhorst   +7 more
wiley   +1 more source

Increasing the efficiency and stability of fuel supply to the combustion chamber of a liquid rocket engine by spray nozzles

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
In this paper, various configurations of jet nozzles are analyzed, as well as their design. The effects of the inlet chamfer of jet nozzles on their flow rate and range are considered.
Yu. I. Ageenko, A. S. Bubnova
doaj   +1 more source

The Monetary Policy–Commodities Nexus: A Survey

Journal of Economic Surveys, EarlyView.
ABSTRACT This survey synthesizes evidence on the bidirectional links between commodity markets and monetary policy. On the commodities‐to‐policy side, we review how shocks to energy, food, and metals pass through to inflation, inflation expectations, economic activity, and financial stability in state‐dependent ways that vary by shock type, exposure ...
Martin T. Bohl, Niklas Humann, Pierre L. Siklos   +2 more
wiley   +1 more source

Tandem Takeoff: Powering Tomorrow with Industrial‐Grade Perovskite/Silicon Solar Cells

Advanced Energy Materials, Volume 16, Issue 5, 4 February 2026.
Perovskite/silicon tandem solar cells have recently achieved certified power conversion efficiencies of 34.85%, far exceeding the Shockley‐Queisser limit for single‐junction silicon and standalone perovskite cells. This review highlights the latest advances in the design, integration, and optimization of perovskite top cells for monolithic tandem ...
Maria Vasilopoulou, Di Huang, Jue Gong, Faming Li, Hao Zhang, Yinqing Sun, Lin Mao, Ermioni Polydorou, Ioannis G. Aviziotis, Leonidas C. Palilis, Onurcan Kaya, Stephan Roche, Jordi Arbiol, Dimitrios Davazoglou, Emmanuel Kymakis, Lei Liu, Kuan Sun, Abd Rashid bin Mohd Yusoff, Mingzhen Liu, Mohammad Khaja Nazeeruddin   +19 more
wiley   +1 more source

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

Water 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, James O. Ijiwade, Ojima Zechariah Wada   +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

Advanced 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, Moparthi Haritha, Arunmetha Sundaramoorthy, Xiaowen Ruan, Sai Kishore Ravi, Venkateswaran Vivekananthan   +5 more
wiley   +1 more source

The issue of ensuring the safe explosion of the spent orbital stages of a launch vehicle with propulsion rocket engine

MATEC Web of Conferences, 2017
A method for increasing the safe explosion of the spent orbital stages of a space launch vehicle (SLV) with a propulsion rocket engine (PRE) based on the gasification of unusable residues propellant and venting fuel tanks.
Trushlyakov Valeriy I., Zharikov Konstantin I.   +1 more
doaj   +1 more source

Light Up a Nanocluster

Aggregate, 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, Kaiyue Liu, Chaoqun Zheng, Along Ma, Shuxin Wang   +4 more
wiley   +1 more source

Modeling of Shutdown Process in Liquid Propellant Rocket Engines [PDF]

فصلنامه علوم و فناوری فضایی, 2014
The effects of liquid propellant rocket engines thrust termination transients are important in achieving the launch vehicle’s desired final velocity with the required precision.
M. Shafiey Dehaj, R. Ebrahimi, H. Karimi, A. Jalali, M. Naderi   +4 more
doaj  

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

Carbon 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, Junru Wu, Huirong Wang, Xiangshao Yin, Zhuo Zhou, Yuanyuan Huang, Yelong Zhang, Weishan Li, Baohua Li   +8 more
wiley   +1 more source