Screen content has become one of the prominent mediums in the increasingly connected world. With the prevalence of remote collaboration and communication such as virtual conferences and online education, recent years have witnessed a dramatic increase in the data volume of the screen content. Screen content compression serves as the fundamental technology in fostering the storage, transmission, and exhibition of screen content. In this article, we target the super-resolution of the compressed screen content images, intending to tackle the real-world challenge problems. A dataset is proposed for the super-resolution of the screen contents contaminated with different compression distortion levels. Subsequently, we introduce the principle of the multi-hypothesis into the super resolution and propose a new paradigm for the restoration of the compressed screen content images. The luminance and sharpness similarity metric is adopted in the network learning to better adapt to the screen content characteristic and ensure perceptual fidelity. Experimental results verify the superiority and effectiveness of the proposed method.

党的二十大报告不仅告诉我们奋进新时代新征程的主题、任务和动力,还告诉我们全面建设社会主义现代化国家、全面推进中华民族伟大复兴的根本保证.这就是在深刻领悟"两个确立"的决定性意义中加强党的全面领导,在坚持党的自我革命中引领社会革命全面发展.

北京市在党建引领基层治理过程中,从探索"吹哨报到"到推广接诉即办,这些创造性的探索,充分体现和彰显了人民城市的性质和底色.推动接诉即办改革,做到主动治理,必须把"人民建"和"为人民"更好地结合起来,充分认识人民的主体地位,充分发挥人民的主导作用.

我们党的一百年,是矢志践行初心使命的一百年.100年来,我们党所付出的一切努力、进行的一切斗争、作出的一切牺牲,都是为了人民幸福和民族复兴.我们党之所以能够由小变大、由弱变强,根本原因正在于矢志践行为中国人民谋幸福、为中华民族谋复兴的初心和使命.矢志践行初心使命贯穿党的百年历史.

Ultracold polar molecules possess long-range, anisotropic, and tunable dipolar interactions, providing unique opportunities to probe novel quantum phenomena. However, experimental progress has been hindered by excessive two-body loss, which also limits further cooling via evaporation. Recent work shows the loss can be mitigated by confining molecules in a two-dimensional geometry. However, a general approach for tuning molecular interactions in a full three-dimensional (3D) stable system has been lacking. Here, we demonstrate the use of an electric field-induced shielding resonance to suppress the reactive loss by a factor of 30 while preserving elastic, long-range dipolar interactions in a bulk gas of ultracold 40K87Rb molecules in 3D. The favorable ratio of elastic to inelastic collisions enables direct thermalization, the rate of which depends on the angle between the collisional axis and the dipole orientation controlled by an external electric field. This is a direct manifestation of the anisotropic dipolar interaction. We further achieve dipolar-interaction-mediated evaporative cooling in 3D. This work demonstrates control of a long-lived bulk quantum gas system with tunable long-range interactions, paving the way for the study of collective quantum many-body physics.

“全面展示中国特色社会主义制度优越性”,是我们理论工作者的崇高使命.不仅要全面展示中国政党制度的优越性,还要用事实回答中国制度的合法性问题.

Full control of molecular interactions, including reactive losses, would open new frontiers in quantum science. We demonstrate extreme tunability of ultracold chemical reaction rates by inducing resonant dipolar interactions by means of an external electric field. We prepared fermionic potassium-rubidium molecules in their first excited rotational state and observed a modulation of the chemical reaction rate by three orders of magnitude as we tuned the electric field strength by a few percent across resonance. In a quasi-two-dimensional geometry, we accurately determined the contributions from the three dominant angular momentum projections of the collisions. Using the resonant features, we shielded the molecules from loss and suppressed the reaction rate by an order of magnitude below the background value, thereby realizing a long-lived sample of polar molecules in large electric fields.

南广阳城村在全村回迁后,积极探索基层社会治理新路径,形成了基层社会治理新格局,产生了以"协商民主、契约治村"为特征的广阳经验.广阳经验背后有强大的文明传统支撑,有鲜明的时代特点.广阳经验弥足珍贵,在基层社会治理中具有典型性,能够持续,值得推广.

党的十九届四中全会在党的历史上第一次专题研究了“坚持和完善中国特色社会主义制度、推进国家治理体系和治理能力现代化”这一重大问题.研究这一问题,并为此通过一个决定,是因为中国特色社会主义制度是党和人民在长期实践中形成的科学制度体系. 中国特色社会主义制度来之不易 历史是最好的老师.我们要坚持和完善中国特色社会主义制度,推进国家治理体系和治理能力现代化,首先要认识到中国特色社会主义制度来之不易.

治理智能化是基层治理的一个重要组成部分,而"智慧中国"就是要用信息化、网络化、智能化推进国家治理和基层治理."智慧中国"的社会治理要更加自觉地运用信息化网络化智能化的高新技术来加强和完善社会治理;要更加自觉地依靠人民群众来推进"智慧中国"的社会治理;要更加自觉地站在"美丽中国""健康中国"的现代化新要求上来推进"智慧中国"的社会治理;要更加自觉地推进网络空间即虚拟空间的依法治理.

中美两国因历史、文化和社会制度的不同,生活在各自的"洞穴"中,因而可能习惯以自己的"心智模式"来观察对方.随着中国经济的快速发展,焦虑、失望、恐惧等情绪开始在美国政界乃至社会中蔓延.之所以如此,同一些美国人对中国缺乏了解甚至误解有关.中国的经验证明,"洞穴假相"是能够消除的,"心智模式"是可以改善的,两个不同国家之间的战略互信是能够建立的.多年来,我们一直在倡导要"读懂中国"的原因即在此:不仅外国人要"读懂中国",中国人也要"读懂中国",同时也要"读懂世界".

We demonstrate how the combination of oscillating magnetic forces and radio-frequency (rf) pulses endows rf photons with tunable momentum. We observe velocity-selective spin-flip transitions and the associated Doppler shift. Recoil-dressed photons are a promising tool for measurements and quantum simulations, including the realization of gauge potentials and spin-orbit coupling schemes which do not involve optical transitions.

新中国成立70年来,中国最成功的探索和最伟大的成就,就是开辟了中国特色社会主义这一非西方化的现代化道路,创造了可以让广大发展中国家乃至于世界分享的宝贵经验.这些宝贵经验,既有现代化的共性,又有中国化的特性,充分证明了中国特色社会主义是人类文明的最新成果.

"改革开放富起来"是人民群众对改革开放以来我国变化和进步的切身感受,生动地反映了我国在改革开放大潮中跨越式发展的历史进程和特点;充分证明我们党的改革开放决策是正确的和合乎逻辑的.在庆祝新中国成立70周年之际,回顾"改革开放富起来"的展开逻辑,对于理解我们党的改革初心,具有重要意义.

制度是关系党和国家事业发展的根本性、全局性、稳定性、长期性问题.中国特色社会主义制度和国家治理体系经过长期实践检验,来之不易,必须倍加珍惜.党的十九届四中全会审议通过的《中共中央关于坚持和完善中国特色社会主义制度、推进国家治理体系和治理能力现代化若干重大问题的决定》(以下简称《决定》),从13个方面总结了我国国家制度和国家治理体系的显著优势,这些显著优势是我们坚定中国特色社会主义道路自信、理论自信、制度自信、文化自信的基本依据.我们要充分认识中国特色社会主义制度的本质特征和优越性,坚定制度自信,在守正创新中坚持和完善中国特色社会主义制度,为不断满足人民对美好生活的新期待、战胜前进道路上的各种风险挑战奠定坚实基础.

评价制度好坏不是看模式而是看实效.新中国70年是在风雨兼程中创造辉煌的70年,主要就在于中国特色社会主义制度和国家治理体系是植根中国大地、具有深厚中华文化根基、深得人民拥护的制度和治理体系,是具有强大生命力和显著优越性的制度和治理体系.

We theoretically investigate the collisional heating of a cold atom system subjected to time-periodic forces. We show within the Floquet framework that this heating rate due to two-body collisions has a general semiclassical expression $\mathcal{P}\propto \rho \sigma v_{\rm col} E_0$, depending on the kinetic energy $E_0$ associated with the shaking, particle number density $\rho$, elastic collision cross section $\sigma$, and an effective collisional velocity $v_{\rm col}$ determined by the dominant energy scale in the system. We further show that the collisional heating is suppressed by Pauli blocking in cold fermionic systems, and by the modified density of states in systems in lower dimensions. Our results provide an exactly solvable example and reveal some general features of Floquet heating in interacting systems.