Results 71 to 80 of about 1,479,909 (271)

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

Advanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang, Yu Dong, Yongsheng Du, Rui Gao, Lin Zhang, Fei Tong   +5 more
wiley   +1 more source

Characteristics of pressure wave in common rail fuel injection system of high-speed direct injection diesel engines

Advances in Mechanical Engineering, 2016
The latest generation of high-pressure common rail equipment now provides diesel engines possibility to apply as many as eight separate injection pulses within the engine cycle for reducing emissions and for smoothing combustion.
Mohammad Reza Herfatmanesh, Zhijun Peng, Alexis Ihracska, Yuzhen Lin, Lipeng Lu, Chi Zhang   +5 more
doaj   +1 more source

Influence of fuel injection parameters on combustion and emissions of diesel engine under low temperature environment [PDF]

Journal of Hebei University of Science and Technology
In order to study the impact of different injection parameters (number of injection holes, injection angle, injection advance angle) on the in-cylinder combustion and emission performance of diesel engine under low temperature environment, a three ...
Hairong ZHU, Xuefang GUO, Zhipeng DI, Zhao WANG   +3 more
doaj   +1 more source

Autonomous Navigation of Pollen‐Inspired Magnetic Microrobots for Biomedical Applications

Advanced Robotics Research, EarlyView.
A sunflower pollen‐inspired magnetic microrobot enables controlled rolling navigation in vessel‐like environments. Its open geometry reduces hydrodynamic drag, while vision‐based closed‐loop control, shortest‐path planning, and reinforcement learning support target‐reaching and maze navigation with microrobot‐scale accuracy, highlighting a route toward
Ali Anil Demircali, Abdurrahim Yilmaz, Meysam Keshavarz, Jinshi Zhao, Ara Darzi, Eric Yeatman, Burak Temelkuran   +6 more
wiley   +1 more source

Impact of Synthetic Paraffinic Kerosene Blends on the Injection Rate in Common-Rail Systems of Reciprocating Engines

Applied Sciences
This study analyzes the injection behavior of fossil and sustainable aviation fuel blends, in comparison with conventional diesel fuel, using a common-rail injection system applied to reciprocating engines.
Samuel González-Ruíz, Pablo Fernández-Yáñez, Ariadna Domínguez-Piedrafita, Reyes García-Contreras, Miguel del Campo, Octavio Armas   +5 more
doaj   +1 more source

Cell‐Based Biohybrid Micro/Nanorobots for Biotherapy

Advanced Robotics Research, EarlyView.
This review systematically evaluates cell‐based biohybrid micro/nanorobots (CB‐BMRs), highlighting their cell selection criteria, fabrication strategies, and diverse actuation modes. Furthermore, it surveys the promising therapeutic applications of CB‐BMRs in targeted cancer, thrombosis, and inflammation treatments, while comprehensively discussing ...
Lin Wang, Chenlu Liu, Yu Zhao, Chuanhua Li, Xuyang Chen, Shixiao Ding, Lizhou Dai, Guokun Wang, Tianlong Li, Jiaxin Li, Xuejia Liu, Haocheng Wang   +11 more
wiley   +1 more source

The dual-fuel CFD combustion model with direct and indirect CNG injection

ITM Web of Conferences, 2017
A proper design of the compression ignition engine fuel system requires various fuel injection methods analysis. Direct and indirect CNG injection process simulation research was conducted.
Tulwin Tytus, Sochaczewski Rafał
doaj   +1 more source

Phosphorylation‐Facilitated CKB Lactylation At K11 By GCN5 Enhances Creatine Kinase Activity and Mitigates Neuronal Damage After Cerebral Ischemia‐Reperfusion

Advanced Science, EarlyView.
This study uncovers hierarchical coordination between K11 lactylation and S199 phosphorylation of CKB in cerebral ischemia‐reperfusion injury. Such dual modifications potentiate CKB enzymatic function, remodel energy metabolism, alleviate oxidative stress and neuronal damage, and represent a viable therapeutic target for stroke treatment.
Chao Duan, Ruolin Zhang, Shihui Ding, Ying Feng, Tao Shen, Ziwei Wang, Wendai Bao, Ke Shui, Jun Qin, Jun Chen, Min Zhang, Zijing Ren, Dongmei Zhao, Xingrong Guo, Zhibing Ai, Xin Yang, Peiyang Zhou, Zhiqiang Dong   +17 more
wiley   +1 more source

Copper‐Driven Epithelial Barrier Disruption: A Novel Mechanism of COPD Acute Exacerbations Mediated by the TNF‐α/ATP7A Axis

Advanced Science, EarlyView.
This study reveals a copper‐driven mechanism of COPD acute exacerbations mediated by the TNF‐α/ATP7A axis. TNF‐α suppresses the copper transporter ATP7A via competitive NF‐κB/CREB1/CBP signaling, resulting in intracellular copper accumulation, mitochondrial oxidative stress, and epithelial barrier disruption.
Xinru Xiao, Yongzhe Hao, Ziqi Ding, Zhipeng Wang, Yujia Shi, Yanhua Huang, Chunjian Qi, Qian Zhang   +7 more
wiley   +1 more source

Experimental Study on Biodiesel Injection Characteristics and Spray Development Tendency

Applied Sciences
The conversion of biodiesel’s chemical energy into mechanical work in diesel engines is strongly influenced by the formation and quality of the fuel–air mixture.
Boban Nikolić, Breda Kegl, Dragan Marinković, Nikola Petrović, Vesna Jovanović   +4 more
doaj   +1 more source