Results 61 to 70 of about 993,247 (318)

A Functionally Conserved Enhancer is Critical for PGC1A Expression and Thermogenesis in Brown Fat

Advanced Science, EarlyView.
An evolutionarily conserved enhancer controls PGC1A expression and thermogenic activation in brown adipose tissue. Integrative multi‐omics analyses identify two BAT‐specific enhancers, with PGC1A‐En1 functioning as the dominant regulatory element that maintains thermogenic capacity across species.
Duo Su, Haosen Yang, Xiaokai Li, Tingting Jiang, Siyuan Zhan, Tao Zhong, Jiazhong Guo, Yan Wang, Li Li, Hongping Zhang, Linjie Wang   +10 more
wiley   +1 more source

An Acoustic Array Sensor Signal Recognition Algorithm for Low-Altitude Targets Using Multiple Five-Element Acoustic Positioning Systems with VMD

Applied Sciences
To solve the problem in target acoustic signal processing and recognition when the target flies at a low altitude based on the acoustic positioning system, which is often affected by external interference and brings false information, this paper proposes
Chunhuan Song, Hanshan Li
doaj   +1 more source

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Classification of High-Altitude Flying Objects Based on Radiation Characteristics with Attention-Convolutional Neural Network and Gated Recurrent Unit Network

Remote Sensing, 2023
In the task of classifying high-altitude flying objects, due to the limitations of the target flight altitude, there are issues such as insufficient contour information, low contrast, and fewer pixels in the target objects obtained through infrared ...
Deen Dai, Lihua Cao, Yangfan Liu, Yao Wang, Zhaolong Wu   +4 more
doaj   +1 more source

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

Advanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao, Ruixue Nie, Hailu Fan, Tenzin Ngodroup, Li Zhu, Hongbin Pan, Bo Zhang, Hao Zhang   +7 more
wiley   +1 more source

Weighted target detector via estimated SNR in a multipath environment

The Journal of Engineering, 2019
Multipath effect cause serious performance degradation in low-altitude target detection. To overcome the negative multipath effect in a low-altitude environment, a novel weighted detector based on the estimated signal-to-noise ratio (ESNR) is proposed ...
Hao Zhou, Guoping Hu, Junpeng Shi, Yu Xiao   +3 more
doaj   +1 more source

Use of orbiting reflectors to decrease the technological challenges of surviving the lunar night [PDF]

, 2011
In this paper the feasibility of using lunar reflectors to decrease the technological challenges of surviving the lunar night is investigated. This is achieved by attempting to find orbits in the two-body problem where the argument of periapsis is ...
Bewick, Russell, McInnes, Colin, Sanchez Cuartielles, Joan-Pau   +2 more
core  

Introgressed Variation in TaMYB7‐A1 Drives Graded Dormancy and Climate‐Adaptive Pre‐Harvest Sprouting Resistance in Wheat

Advanced Science, EarlyView.
TaMYB7‐A1 directly activates TaABI5 to enhance ABA signaling and regulate ABA‐GA homeostasis, enforcing seed dormancy. Its superior allele, derived from wild einkorn introgression, harbors a MITE insertion that elevates expression and two amino acid substitutions that enhance transcriptional activity, collectively generating graded PHS resistance for ...
Hao Wang, Dongzhi Wang, Yafei Guo, Qi Zheng, Min Zhang, James Simmonds, Jian Hou, Xuemei Liu, Xuelei Lin, Xiaomin Bie, Xiansheng Zhang, Xiaohui Li, Yuan Chen, Xueyong Zhang, Cristobal Uauy, Fei Lu, Chengcai Chu, Zhixi Tian, Jun Xiao   +18 more
wiley   +1 more source

Removing Orbital Debris with Lasers

, 2011
Orbital debris in low Earth orbit (LEO) are now sufficiently dense that the use of LEO space is threatened by runaway collisional cascading. A problem predicted more than thirty years ago, the threat from debris larger than about 1 cm demands serious ...
Alexander Rubenchik, Bespalov, Bogdan Marcovici, Bradley, Bunkin, Carrick, Chengyu, Claude R. Phipps, Duane A. Liedahl, E. Victor George, Egerman, Hayhurst, Henderson, James E. Trebes, James P. Reilly, Kessler, Kevin L. Baker, Kulagin, Kuznetsov, LaFortune, Liedahl, Liou, Liukonen, Lyn D. Pleasance, MacDonald, Michael T. Valley, Phipps, Phipps, Phipps, Phipps, Phipps, Priedhorsky, Rubenchik, Saha, Scot S. Olivier, Simms, Sinko, Stephen B. Libby, Strafford, Wilson, Zhu, Кantrоwitz   +41 more
core   +1 more source

Highly Efficient and Environmentally Stable Radiative Cooling Fabric: Integrating Photoluminescence and Hierarchical Core–Shell Fibers

Advanced Science, EarlyView.
A scalable radiative cooling fabric engineered with a multi‐layer assembly core–shell structure and integrated photoluminescent materials is reported. The fabric exhibits remarkable environmental stability, including UV resistance, mechanical durability, hydrophobicity, stain resistance, thermal stability, and flame retardancy, demonstrating its ...
Hongtao Liu, Hui Li, Yining Wang, Wei Sun, Zhuan Chen, Yongping Hou, Yongmei Zheng, Xuejian Chen, Bin Yu   +8 more
wiley   +1 more source