CBN丨China's factory activity contracts in November
Hi everyone. I’m Stephanie LI.大家好,我是主持人李莹亮。Coming up on today’s program.
CBN丨China’s factory activity unexpectedly contracts in October
Hi everyone. I’m Stephanie LI.大家好,我是主持人李莹亮。Coming up on today’s program.
Chinese and International Students Join Social Practice Activity in Chongqing
Nearly 60 Chinese and international students joined a social practice activity in Chongqing, exploring rural culture, intangible cultural heritage and youth exchanges.
Admiring Flowers in a Group Becomes an Economic Activity
Festivals held "in the name of flowers" across various regions are transforming flower-viewing into cultural and tourism events with immersi
Property management struggles amid housing market inactivity
By WANG YuhanWeighed down by an indisposed housing market, stocks of property management companies have seen a widespread decline.
《植物大战僵尸2》海滩世界第一弹更新包即将发布
《植物大战僵尸2》海滩世界第一弹更新包即将发布,如今随着植物大战僵尸2的各种宣传,海滩世界这张新地图也进入了玩家们的视线。根据消息称,开发商PopCap宣布,旗下人气塔防游戏续作《植物大战僵尸2》(Plants vs.
《科学》(20210326出版)一周论文导读
Surface phonon polaritons are coupled photon-phonon excitations that emerge at the surfaces of nanostructured materials. Although they strongly influence the optical and thermal behavior of nanomaterials, no technique has been able to reveal the complete three-dimensional vectorial picture of their electromagnetic density of states. Using a highly monochromated electron beam in a scanning transmission electron microscope, we could visualize varying SPhP signatures from nanoscale MgO cubes as a function of the beam position, energy loss, and tilt angle. The SPhPs’ response was described in terms of eigenmodes and used to tomographically reconstruct the phononic surface electromagnetic fields of the object. Such 3D information promises insights in nanoscale physical phenomena and is invaluable to the design and optimization of nanostructures for fascinating new uses.
上海11岁小学生买上千张奥特曼盲盒卡片,家长要求商家退款
8月6日,澎湃新闻记者从上海市金山区人民法院获悉,近日,该院亭林法庭与亭林市场监管所联合成立的“亭林镇消费纠纷诉调对接工作室”成功化解了这起未成年人购买盲盒卡片的消费纠纷,经工作室调解,商家同意退还盈利部分钱款。
从深渊到重现人类智能,神经网络之父的传奇人生
这个论文首次提出了人工神经网络的概念,随后,Rosenblatt又提出具有三层网络特性的的神经网络结构“感知器”,此概念一经提出便引起了全社会的广泛关注,促成了连接主义的第一波热潮。1969年,“人工智能之父”Minsky和Papert发文指出,神经网络概念的构成过于简单,只能用于现行问题的求解,因而从理论上还不能证明将感知器模型扩展到多层网络是有意义的。
Video|Parent-child bird-watching activity held in the Pearl River Park, Guangzhou
As a rare ecological oasis and forest garden in the city center, the Pearl River Park in Guangzhou not only provides an ideal place for citi