Results 51 to 60 of about 69,939 (320)

Stars caught in the braking stage in young Magellanic Clouds clusters

, 2017
The color-magnitude diagrams of many Magellanic Cloud clusters (with ages up to 2 billion years) display extended turnoff regions where the stars leave the main sequence, suggesting the presence of multiple stellar populations with ages which may differ ...
D'Antona, Francesca, Di Criscienzo, Marcella, Milone, Antonino P., Tailo, Marco, Ventura, Paolo, Vesperini, Enrico   +5 more
core   +1 more source

Detection of a period decrease in NN Ser with ULTRACAM: evidence for strong magnetic braking or an unseen companion? [PDF]

, 2005
We present results of high time resolution photometry of the eclipsing pre-cataclysmic variable NN Ser. We observed 13 primary eclipses of NN Ser using the high-speed CCD camera ULTRACAM and derived times of mid-eclipse, from fitting of light curve ...
Andronov, Applegate, Applegate, C. Knigge, C. S. Brinkworth, Catalan, Collier-Cameron, Dhillon, Faulkner, Gorda, Haefner, Haefner, Harpaz, Harpaz, Kawaler, Keppens, Kim, Kraft, Krishnamurthi, Lanza, Marsh, Mestel, Paczynski, Patterson, Pigulski, Queloz, Rappaport, Reid, Ritter, Sills, Skumanich, Spruit, Stauffer, T. R. Marsh, V. S. Dhillon, Vaz, Verbunt, Warner, Weber, Wood   +39 more
core   +3 more sources

Combined Photothermal and mTOR‐Targeted Therapy Overcomes Immune Evasion and Enhances Checkpoint Blockade Efficacy in Metastatic Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
This study reveals that photothermal therapy, while inducing immunogenic cell death in triple‐negative breast cancer, paradoxically activates the oncogenic mTOR pathway to drive immune evasion. To counter this, a smart nanocomposite is engineered to co‐deliver localized hyperthermia and mTOR inhibition.
Yujie Zhao, Jing Yu, Xin Wang, Xu Liu, Fengli Zuo, Tianyue Xu, Leyi Tang, Ling Xiong, Li Li, Huifang Li, Xiaoting Chen, Guang Yang, Jing Jing, Xiaowei Liu   +13 more
wiley   +1 more source

Analysis on the selection of brake shoe and wheel for an engineering train from the perspective of braking safety

机车电传动, 2022
For an engineering train with maximum running speed up to 160 km/h and axle load of 21 t, the brake shoe type, single and double side braking type and wheel diameter were confirmed by analysis in four aspects of braking distance limit, wheel-rail ...
LEI Yanan, HUANG Zhihui, HU Feifei, ZHU Shichang, ZHANG Bingqi, MA Chao   +5 more
doaj  

Limited Visibility and Uncertainty Aware Motion Planning for Automated Driving

, 2018
Adverse weather conditions and occlusions in urban environments result in impaired perception. The uncertainties are handled in different modules of an automated vehicle, ranging from sensor level over situation prediction until motion planning.
Stiller, Christoph, Tas, Omer Sahin
core   +1 more source

An ABS control logic based on wheel force measurement [PDF]

, 2012
The paper presents an anti-lock braking system (ABS) control logic based on the measurement of the longitudinal forces at the hub bearings. The availability of force information allows to design a logic that does not rely on the estimation of the tyre ...
A. Vigliani, Ait-Hammouda I., B. van Leeuwen, Bosch GmbH R., Botero J. C., Broughton J., Choi S. B., D. Capra, Deur J., E. Galvagno, Gustafsson F., Harifi A., Müller S., Nouillant C., Pasillas-Lépine W., Rattasiri W., Ray L. R., Solyom S., Tanelli M., V. Ondrak, Wu M. C., Yi J., Zuurbier J.   +22 more
core   +1 more source

Loss of SOCS1 in Donor T Cells Exacerbates Intestinal GVHD by Driving a Chemokine‐Dependent Pro‐Inflammatory Immune Microenvironment

Advanced Science, EarlyView.
T cell‐specific Socs1 knockout leads to inflammatory differentiation of CD8+ T cells, prompting the STAT1/2 complex to drive the activation of Ccl5, Ccr5, and Cxcr3, and promoting the skewing of monocytes toward a pro‐inflammatory M1 macrophage lineage.
Zhigui Wu, Bixia Wang, Xinya Jiang, Fangqing Zhang, Qianqian Huang, Xinyi Wu, Shuang Fan, Qi Zhang, Jingrui Zhou, Jianing Tang, Xiao‐Dong Mo, Yu Wang, Ying‐Jun Chang, Huidong Guo, Xiao‐Jun Huang   +14 more
wiley   +1 more source

A Trypsin‐Like Serine Protease ZmNAL1a Fine‐Tunes Maize Floral Transition and Flowering Time

Advanced Science, EarlyView.
This study identifies a trypsin‐like serine protease, ZmNAL1a, that moves from leaves to the shoot apical meristem. ZmNAL1a promotes the floral transition by degrading TOPLESS‐like corepressor REL2, which thereby enhances the expression of key flowering genes through elevating histone acetylation and relieving REL2–ZmEREBP147‐mediated transcriptional ...
Nan Li, Qiang Ning, Zhen Li, Qian Zhang, Peilu Zhu, Jimin Zhan, Yunfu Li, Zhen Li, Liang Dong, Qing Xiong, Jiahao Liao, Jie Liu, David Jackson, Munenori Kitagawa, Zuxin Zhang, Lei Liu   +15 more
wiley   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Increase of Braking Efficiency of Local Electric Trains

Механика машин, механизмов и материалов, 2008
It was developed a braking system for electric trains equipped with cast iron braking shoes, which allows shortening braking distance at emergency braking.
V.I. Senko, Ed.I. Galay , P.K. Rudov
doaj