Results 121 to 130 of about 739,516 (347)

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

H2S‐Releasing Aspirin Nanoparticles Alleviate Endometriosis and Associated Anxiety

Advanced Science, EarlyView.
Albumin nanoparticles loaded with an H2S‐releasing aspirin derivative (ACS14) hitchhiking neutrophils after intraperitoneal injection and preferentially accumulate in endometriosis lesions in mice. The treatment suppresses lesion growth by regulating PI3K/Akt and reduces inflammation by inhibiting NF‐κB.
Mengni Zhou, Renbin Dou, Rong Wu, Yunyu Xu, Ying Wang, Peng Wang, Jinfu Li, Pengcheng Lu, Yu Mao, Jieying Qian, Yunjiao Zhang, Jiqian Zhang, Shasha Zhu   +12 more
wiley   +1 more source

Tetraaza[7]–[15]helicenes Synthesized by Two‐Step Strategy: Length‐Controlled Chiral π‐Systems Exhibiting Amplified Circularly Polarized Luminescence

Angewandte Chemie, EarlyView.
A modular two‐step strategy provides tetraaza[n]helicenes (n = 7–15) as a homologous series with tunable photophysical and chiroptical properties. Extension beyond n = 11 induces pronounced through‐space π–π interactions, narrowing the energy gap and amplifying circularly polarized luminescence.
Takashi Otani, Yuchen Wu, Kohei Ueda, Yuki Ikeda, Yuna Tada, Natsuna Kinoshita, Takanori Shibata   +6 more
wiley   +2 more sources

Heterostructure‐Engineered Conductive MOFs Coupled with MoSe2@MXene Framework for Efficient and Selective Lithium Extraction from Salt Lake Brine via Capacitive Deionization

Advanced Science, EarlyView.
This schematic illustrates a capacitive deionization (CDI) system for the selective extraction of lithium from salt‐lake brine. The system employs a cathode fabricated from the Fe‐THBQ@MoSe2@MXene composite alongside an activated carbon (AC) anode. Upon applied voltage, the cathode demonstrates high efficiency in capturing Li+ ions while effectively ...
Pengze Li, Xiaodan Chong, Yutong Guo, Guangrun Wu, Shanshan Wang, Ruixue Liu, Jiamiao Ma, Yu Wang, Wenqiang Chen, Yanmeng Cai, Yaoyao Wang, Qing Yuan, Jinsheng Zhao   +12 more
wiley   +1 more source

EXPERIMENTAL STUDY ON CUTTING ENERGY CONSUMPTION OF COAL MINING UNDER DIFFERENT WORKING CONDITIONS

Jixie qiangdu, 2019
In order to study the cutting energy consumption characteristics of coal miner under complicated conditions, the MG500/1180-WD shearer was cut out under different working conditions by collecting the cutting energy consumption model of coal mining ...
HAO ZhiYong, ZHOU ZhengQi, ZHANG Pei, YANG QuanChun   +3 more
doaj  

Research on Micro⁃Textured CBN Tools for Turning of Copper⁃Nickel Alloy

Liaoning Shiyou Huagong Daxue xuebao
Three types of micro⁃textures, including broken line grooves, longitudinal grooves and 45° oblique grooves, were constructed on the tool surface and the influence of the tool surface micro⁃texture on the tool cutting performance during copper⁃nickel ...
Chao ZHANG, Shankuo YUE, Yan HE, Lin FAN, Meiling TANG, Jingting SUN   +5 more
doaj   +1 more source

Phonon nanocapacitor for storage and lasing of terahertz lattice waves

, 2014
We introduce a novel ultra-compact nanocapacitor of coherent phonons formed by high-finesse interference mirrors based on atomic-scale semiconductor metamaterials.
Han, Haoxue, Kosevich, Yuriy A., Li, Baowen, Volz, Sebastian   +3 more
core   +3 more sources

Realization of a Bilayer Elastic Topological Insulator

Advanced Science, EarlyView.
Bilayer elastic wave topological insulators are experimentally realized, introducing the layer degree of freedom to access four topological phases. This enables diverse domain walls and transmission behaviors, including interlayer conversion and beam splitting.
Chengzhi Ma, Zhiwei Song, Zheyu Cheng, Jiu Hui Wu, Baile Zhang   +4 more
wiley   +1 more source

Analytical Model of Forge Cutting Process with Asymmetrical Tools

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2005
In this paper is developed the theory of forge cutting process feasible with asymmetrical tools. The asymmetrical cutting process is different of the symmetrical cutting process.
Nicolae CANĂNAU, Doru HANGANU
doaj  

Investigation on the turning of wire and arc direct energy deposition austenitic stainless steel

Journal of Advanced Mechanical Design, Systems, and Manufacturing
This paper focuses on the study of the turning of Austenitic Stainless Steel products manufactured with the Wire and arc direct energy deposition (DED-Arc) process by comparing the cutting process of two different samples, one manufactured with the DED ...
Gustavo QUADRA VIEIRA DOS SANTOS, Youhei KUJIRAI, Jun’ichi KANEKO, Takeyuki ABE   +3 more
doaj   +1 more source