Results 71 to 80 of about 17,042 (262)

Ionospheric HF Doppler indication of GNSS positioning errors

, 2023
The HF Doppler ionospheric measurements can along with identification of medium scale wave activity provide also estimation of the level of the related GNSS positioning errors. The paper demonstrates the rise of GNSS positioning error with increasing wave activity at ionospheric heights and with changing parameters representing ionospheric waves ...
Urbar, J., Rejfek, L., Chum, J., Truhlik, V., Rusz, J., Baše, J., Horký, J., Šimůnek, J., Mošna, Z., Kouba, D., Obrazová, D.   +10 more
openaire   +2 more sources

Bioabsorbable Endovascular Adhesive Tape (BEAT) for Improving Vascular Regeneration

Advanced Science, EarlyView.
A bioabsorbable endovascular adhesive tape (BEAT) platform based on a hierarchical polyelectrolyte complex is developed to enhance drug delivery in the DCB system. The coating enables rapid transfer to the vessel, provides short‐term mechanical support, and promotes both immediate transfer and long‐term retention of drugs at the lesion site.
Jiarong Wang, Jing Wang, Xinyi Li, Bo Yu, Yiduo Chen, Yirong Guo, Honglin Qian, Meng Hu, Haoyang Liu, Wenhui Liu, Han Xu, Kefeng Ren, M. Cristina L. Martins, Jian Ji   +13 more
wiley   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

Advanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies, Emanuele Nicotra, Kefan Zhu, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Phuoc Thien Phan, Jingjing Wan, Patrick Pruscino, Hermione Truong, Jelena Rnjak‐Kovacina, Hoang‐Phuong Phan, Christopher Hayward, Nigel Hamilton Lovell, Thanh Nho Do   +14 more
wiley   +1 more source

A single acoustic beacon-based positioning method for underwater mobile recovery of an AUV

International Journal of Advanced Robotic Systems, 2018
This article presents a navigation method for an autonomous underwater vehicle being recovered by a human-occupied vehicle. The autonomous underwater vehicle is considered to carry underwater navigation sensors such as ultra-short baseline, Doppler ...
Ziye Zhou, Yanqing Jiang, Ye Li, Cao Jian, Yeyi Sun   +4 more
doaj   +1 more source

Caspase‐3/GSDME‐Mediated Trophoblast Pyroptosis and Reciprocal Macrophage Polarization Contribute to Inflammation in Early‐Onset Preeclampsia

Advanced Science, EarlyView.
In trophoblast cells, T/S (TNFα + SM164) activated caspase‐3, which cleaved GSDME to switch apoptosis to pyroptosis, causing cell swelling, membrane rupture, and release of LDH, HMGB1, IL‐1β and IL‐18. These cytokines induced pro‐inflammatory macrophage polarization, which in turn reinforced pyroptotic signaling in trophoblasts, amplifying systemic ...
Baoying Huang, Weinan Deng, Shilei Bi, Yifan Wang, Zhaowei Tu, Lijun Huang, Lili Du, Lizi Zhang, Zhoushan Feng, Wei Sun, Tengfei Liu, Julia Kzhyshkowska, Haibin Wang, Jingsi Chen, Dunjin Chen, Shuang Zhang   +15 more
wiley   +1 more source

Typhoon Positioning Method Using Dual-Radar Zero Radial Velocity Lines and Preliminary Test

Tropical Cyclone Research and Review, 2017
: Timely and relatively accurate detection of the center position of a near-landfalling typhoon is essential for weather forecasts, warning, disaster preparedness and data assimilation.
Hongya Liu, Hui Wang, Liangbo Qi, Jing Zhang   +3 more
doaj   +1 more source

Critical Limitations in Cryogenic Laser Cooling of Solids: Symmetry‐Related Fluorescence Trapping and Condensation‐Induced Parasitic Heating

Advanced Science, EarlyView.
This study uncovers two overlooked bottlenecks in cryogenic laser cooling of solids: symmetry‐driven fluorescence trapping and water vapor condensation. We demonstrate that breaking sample symmetry enhances fluorescence escape, while condensation dominates parasitic heating below 135 K.
Biao Zhong, Jiayi Zhang, Haodong Yang, Lianzhong Deng, Mauro Tonelli, Ercang Luo   +5 more
wiley   +1 more source

Endothelial GPR68 Is Essential for Arteriogenesis and Represents a Therapeutic Target in a Model of Peripheral Artery Disease

Advanced Science, EarlyView.
Endothelial GPR68 is identified as a critical regulator of collateral artery growth in peripheral artery disease. Genetic and pharmacological evidence demonstrates that GPR68 integrates hemodynamic cues to drive monocyte recruitment and inflammatory remodeling, thereby promoting collateral arteriogenesis and tissue perfusion after ischemia ...
Yiyan Song, Senyi Peng, Zhilei Huang, Miao Yu, Mingyue Wu, Yuexin Zhu, Zeyi Zhou, Yongshan Liu, Yalin Zhang, Yu Huang, Zhongxing Wang, Fu‐Li Xiang, Jie Xu   +12 more
wiley   +1 more source

Real‐Time and High‐Resolution NIR‐II‐L Imaging of Netrin‐1‐Mediated Neurovascular Coupling Driven by Dose‐Dependent Electroacupuncture

Advanced Science, EarlyView.
Disrupted neurovascular coupling contributes to ovarian dysfunction in polycystic ovary syndrome. Using near‑infrared II long‑wavelength imaging, this study visualizes how electroacupuncture dynamically regulates ovarian blood vessels in vivo. Immediate and cumulative stimulation elicit distinct vascular responses via a Netrin‐1 dependent mechanism ...
Yicong Wang, Zi‐Han Chen, Jiajia Li, Wei Hu, Ying Cao, Yu Wang, Xiaoyu Tong, Wenhan Lu, Yuze Yang, Yuehao Wang, Yan Xiao, Wenhao Gao, Yuning Chen, Yuyan Hou, Fan Zhang, Yi Feng   +15 more
wiley   +1 more source

Biomimetic Cell Membrane‐Coated MOFs System for Targeted Cancer Therapy

Advanced Science, EarlyView.
Biomimetic MOF‐based drug delivery nanoplatforms synthesized using liposomes or cell membranes as camouflage for multiple cancer therapeutics. ABSTRACT The integration of metal‐organic frameworks (MOFs) with cell membrane coatings has emerged as a revolutionary strategy to enhance the therapeutic efficacy of cancer nanomedicine.
Qilu Wu, Jia Song Deon Chon, Yuxiao Feng, Kang Liang, Shiming Li, Can Yang Zhang, Jun Ge   +6 more
wiley   +1 more source