Results 81 to 90 of about 1,847 (241)

Geographical aspects of the security of International Security Assistance Forces's projects in Afghanistan

, 2015
The thesis is dedicated to the ISAF's Provincial Reconstruction Teams in Afghanistan. The research focus of this study is the analysis of specific geographic factors related to location of selected reconstruction teams in Afghan provinces.
Jelínek, Jan
core  

Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors

EcoEnergy, EarlyView.
Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan, Yu Zhang, Zhazira Supiyeva, Qamar Abbas   +3 more
wiley   +1 more source

Bemästra, bistå eller både och? : En kritisk studie av Provincial Reconstruction Teams roll och agerande i Afghanistan

, 2011
The specific task of this thesis is to illustrate the complexity of a cooperation between civilian and military entities by examining Provincial Reconstruction Teams (PRTs) and their role as an actor among others in the field in a war-torn Afghanistan ...
Birkeland, Jacob
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Interfacial Solvent Molecular Engineering via High‐Safety Dense Separators for High‐Rate Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The dense PPS‐separator prevents thermal runaway by allowing electron transfer through the steel needle during penetration, while the residual electrolyte enables brief ion migration and Joule heating, causing rapid electrolyte vaporization, collapse of the ion transport network, and a sharp drop in ionic conductivity.
Haitao Zhou, Jie Gu, Haiyun Zhou, Yihong Deng, Yafei Shi, Yang Yang, Chen Wang, Hongquan Gao, Jianchun Wu, Libo Wang, Xiangdong Huo   +10 more
wiley   +1 more source

Air Stability of Sulfide Solid Electrolytes: From Theoretical Insights to Practical Solutions

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This paper reviews research progress on the air stability of SSEs, covering their instability mechanisms and modification strategies, while outlining core challenges and future directions for practical applications. Sulfide solid electrolytes are pivotal for enabling high‐performance all‐solid‐state batteries due to their high ionic conductivity and ...
Hongbing Ding, Yue Hu, Xin Li, Yang Su, Xinlu Wang, Hongbo Zhang, Guixia Liu, Wensheng Yu, Xiangting Dong, Jinxian Wang, Xin Wang   +10 more
wiley   +1 more source

Iraq Reconstruction: Better Data Needed to Assess Iraq's Budget Execution [PDF]

, 2008
A letter report issued by the Government Accountability Office with an abstract that begins "The President's New Way Forward in Iraq identified Iraq's inability to spend its resources to rebuild infrastructure and deliver essential services as a critical
United States. Government Accountability Office.
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Asymmetric Dual‐Electron Bridge Via Gradient Orbital Coupling for Robust Alkaline Oxygen Evolution in Low‐Iridium Water Electrolysis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The engineered IrOx/FeEu‐NiTex composite, with ultralow Eu (0.72 at%) and Ir (0.14 at%) content, harnesses an asymmetric dual‐electron‐bridge structure (Ni 3d–O 2p–Eu 4f, Ni 3d–O 2p–Ir 5d) for gradient orbital coupling. This unique architecture delivers superior and robust alkaline oxygen evolution activity, enabling efficient low‐iridium water ...
Guiling Wu, Qianlin Chen, Feng Wang, Yan Zhao, Zhaoyang Wang   +4 more
wiley   +1 more source

Nickel‐Catalyzed LiF‐Rich Interface for Silicon Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Modulating the decomposition of F‐containing species in the electrolyte to form LiF‐rich SEI has been proven to be an effective strategy for interface optimization. Herein, through nickel‐catalyzed pyrolysis of carbon precursors on silicon, graphene‐like carbon was formed to construct three‐dimensional conductive networks.
Haoqi Li, Ming Li, Xiaorui Chen, Jingjing Wang, Mengxin Bai, Xuan Yang, Xingchi Zou, Hao Li, Guiqiang Cao, Bo Sun, Jiaxu Yang, Wenyu Liu, Junqi Zhang, Xifei Li   +13 more
wiley   +1 more source

Electrolyte Engineering for High‐Energy Conversion‐Type Cathodes in Lithium Metal Batteries: Progress and Challenges

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A critical overview of electrolyte engineering for conversion‐type cathodes in lithium metal batteries is presented. Advanced electrolyte systems are summarized with emphasis on Li+ solvation‐structure‐driven interfacial chemistry and electrochemical performance.
Yihan Qiu, Yufan Peng, Jiale Xia, Jinping Liu   +3 more
wiley   +1 more source

Renewable Energies in Kazakhstan: Current Status, Potential, Challenges, and Opportunities

Energy Science &Engineering, EarlyView.
Kazakhstan has strong renewable energy potential, with wind as the leading resource and solar and other sources offering additional opportunities. Key challenges include limited infrastructure, investment needs, and grid‐related technical issues. Despite these barriers, renewables can boost economic diversification, enhance energy security, create jobs,
Lyailim Taizhanova, Akhmetov Berik, Samal Syrlybekkyzy, Shynar Baimukasheva, Symbat Koibakova, Nurkhat Zhakiyev, Mohammad Alhuyi Nazari, Mohamed Salem   +7 more
wiley   +1 more source