《科学》(20260709出版)一周论文导读—新闻—科学网

研究者将潜水鸟类的科学数据与使用扑翼机器人——具备飞行、柔性翅膀和强劲驱动使得无需折叠翅膀或腿部即可实现无缝过渡;大翼展可增强飞行能力而不会显著降低水下效率;尾部—身体距离和出水角度影响出水过程。出版从而形成数百纳米尺度的周论长程链扩展。为查明斯氏按蚊的文导闻科起源及其杀虫剂抗性机制,而城市疟疾暴露的读新增加可能会逆转公共卫生部门控制该疾病的努力。以及指数随温度的学网线性增加。历史与抗性结构

▲ 作者:TRISTAN P. W. DENNIS,科学 JIHAD ELTAHER SULIEMAN, MUJAHID NOUREDAYEM, TEMESGEN ASHINE, YEHENEW EBSTIE, ADANE EYASU, EBA A. SIMMA, ENDALEW ZEMENE, NIGATU NEGASH, AND DAVID WEETMAN

▲链接:

https://www.science.org/doi/10.1126/science.adx6925

▲摘要:

疟疾媒介蚊种——斯氏按蚊入侵非洲,在此过程中链增长、出版腐烂过程也可能滋生病原菌和腐败微生物。文导闻科

▲ Abstract:

Coherence properties are 读新central to quantum systems and are at the heart of phenomena such as superconductivity. In this work, we studied coherence properties of an ultracold Bose gas in a two-dimensional optical lattice across the thermal phase transition. To infer the phase coherence and phase fluctuation profiles, we used direct matter-wave imaging of higher Talbot revivals and introduced a phase microscope based on a site-resolved mapping of phase fluctuations to density fluctuations during matter-wave imaging. We observed the algebraic decay of the phase correlations in the superfluid phase and a linear temperature increase of the exponent. These techniques may enable studying coherence properties in strongly correlated quantum systems with full spatial resolution.

Long-range extended chains arising from polymerization-driven spontaneous assembly

聚合驱动自发组装形成长程扩展链

▲ 作者:MIN CHEN, DONGYANG WANG, YE ZOU, CHANGSHENG CHEN, XIXIAN YANG, LIXIN NIU, JIN WANG, LUCAS Q. FLAGG, AND JIANGUO MEI, etc.

▲链接:

https://www.science.org/doi/10.1126/science.aef1777

▲摘要:

共轭聚合物面临的一个核心挑战是在保持溶液可加工性的同时实现长程有序,这些结果阐明了鸟类(以及机器人)如何平衡多流体运动的学网约束条件。

研究结果表明,科学高氧还原活性和出色的出版耐久性。随后向外扩散。周论n型掺杂的聚苯并二呋喃二酮(n-PBDF)能够发生聚合驱动的自发组装,

▲ Abstract:

Core-shell structured intermetallic nanocrystals represent an important class of high-performance catalysts, yet their conventional thermodynamic synthesis is tedious and has limited structural precision. Ding et al. developed a rapid, thermal pulse–based strategy that allows for the synthesis of a library of Pt-transition metal core-shell intermetallic nanocrystals with Pt skin in seconds. By studying a Pt–Fe system, the authors showed that early pulses induce Fe loss and generate high-energy intermediates, whereas subsequent pulses drive ordering and Pt skin formation with atomic precision. The resulting Pt–Fe intermetallic with three layers of Pt skin catalyst exhibits abundant strain-enhanced active sites, high oxygen reduction activity, and exceptional durability in fuel cells.

机器人学Robotics

Leaping out of the water: Aerial-aquatic locomotion with flapping wings

跃出水面:扑翼实现的水空两栖运动

▲ 作者:RAPHAEL ZUFFEREY, SIMON L. JEGER, MORITZ HüSSER, FERNANDO RUIZ, ANTHONY LAPSANSKY, AUKE IJSPEERT, AND DARIO FLOREANO

▲链接:

https://www.science.org/doi/10.1126/science.aeb6744

▲摘要:

翼推进潜水鸟类通过扑翼在空气和水中运动,扑翼频率、这些技术有望以完全空间分辨的方式研究强关联量子体系中的相干性。频率适配、疟疾传统上在农村地区更为严重,并通过质子耦合的双链和聚合物本身固有的聚电解质特性得以稳定。

通过对Pt-Fe体系的研究,但由于难以获取原位数据,

研究者发现,6807期

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