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    题名 作者 年代 出处 被引量
1HERMITE—BIRKHOFF INTERPOLATION OF SCATTERED DATA BY RADIAL BASIS FUNCTIONS显示文摘For Hermite-Birkhoff interpolation of scattered multidumensional data by radial basisfunction ,existence and characterization theorems and a variational principle are proved.Examples include (r)=r^b,Duchon’s thin-plate splines,Hardy’s multiquadrics,and inversemultiquadrics.吴宗敏 1992Analysis in Theory and Applications1992,8,2:5
2Terahertz spatial sampling with subwavelength accuracy显示文摘A simple terahertz(THz)spatial sampling method offers kilohertz(kHz)level sampling rates and greatly preserves the energy of a THz pulse,which enables THz imaging detection with a high signal-to-noise ratio,micron-grade accuracy,and subwavelength resolution.Yan Peng Yiming Zhu Min Gu Songlin Zhuang 2019Light(Science & Applications)2019,8,1:2
3Free-space optical neural network based on thermal atomic nonlinearity显示文摘As artificial neural networks(ANNs)continue to make strides in wide-ranging and diverse fields of technology,the search for more efficient hardware implementations beyond conventional electronics is gaining traction.In particular,optical implementations potentially offer extraordinary gains in terms of speed and reduced energy consumption due to the intrinsic parallelism of free-space optics.At the same time,a physical nonlinearity—a crucial ingredient of an ANN—is not easy to realize in free-space optics,which restricts the potential of this platform.This problem is further exacerbated by the need to also perform the nonlinear activation in parallel for each data point to preserve the benefit of linear free-space optics.Here,we present a free-space optical ANN with diffraction-based linear weight summation and nonlinear activation enabled by the saturable absorption of thermal atoms.We demonstrate,via both simulation and experiment,image classification of handwritten digits using only a single layer and observed 6% improvement in classification accuracy due to the optical nonlinearity compared to a linear model.Our platform preserves the massive parallelism of free-space optics even with physical nonlinearity,and thus opens the way for novel designs and wider deployment of optical ANNs.Albert Ryou James Whitehead Maksym Zhelyeznyakov Paul Anderson Cem Keskin Michal Bajcsy Arka Majumdar 2021Photonics Research2021,9,4:2
4Generating Giant Membrane Vesicles from Live Cells with Preserved Cellular Properties显示文摘Biomimetic giant membrane vesicles,with size and lipid compositions comparable to cells,have been recognized as an attractive experimental alternative to living systems.Due to the similarity of their membrane structure to that of body cells,cell-derived giant plasma membrane vesicles have been used as a membrane model for studying lipid/protein behavior of plasma membranes.However,further application of biomimetic giant membrane vesicles has been hampered by the side-efects of chemical vesiculants and the utilization of osmotic bufer.We herein develop a facile strategy to derive giant membrane vesicles(GMVs)from mammalian cells in biofriendly medium with high yields.Tese GMVs preserve membrane properties and adaptability for surface modifcation and encapsulation of exogenous molecules,which would facilitate their potential biological applications.Moreover,by loading GMVs with therapeutic drugs,GMVs could be employed for drug transport to tumor cells,which represents another step forward in the biomedical application of giant membrane vesicles.Tis study highlights biocompatible GMVs with biomimicking membrane surface properties and adaptability as an ideal platform for drug delivery strategies with potential clinical applications.Qiaoling Liu Cheng Bi Jiangling Li Xuejiao Liu Ruizi Peng Cheng Jin Yang Sun Yifan Lyu Hui Liu Huijing Wang Can Luo Weihong Tan 2019Research2019,,1:2
5物理学咬文嚼字之七十四保守与守恒显示文摘Preserve和conserve都是强调保持某个事物不变,在物理学中它们是和symmetry,invariance相关联的,从属于一个一脉相承的概念体系。不同广延量的守恒律掩盖的是不同的物理。曹则贤 2015物理2015,44,7:2
6RNA methylation preserves ES cell identity by chromatin silencing of retrotransposons显示文摘RNA methylation on N6-methyladenosine(m6A)and histone methylation are critical mechanisms regulating gene expression at epitranscriptomic and epigenetic levels,respectively.However,how RNA methylation modulates histone methylation,and in which biological processes,is unknown.In a recent study published in Nature,Liu et al.1 identified the critical roles of m6A and its reader YTHDC1 in mediating histone methylation and chromatin silencing of retrotransposon genes to preserve embryonic stem(ES)cell identity.Zhaofa Xu Annabel Ma Yongchao C.Ma 2021Signal Transduction and Targeted Therapy2021,6,8:0
7as...as any是什么意思?显示文摘[问][397]《新编大学英语))第四册第八单元有这样一句:I began to realize that radio could do more even than preserve my sanity and defeat my homesickness; it could provide me with a wealth of information on, and a hearty appreciation for, a place as different from my home town as any in the country.《教师用书》将其译为:邢莲君 2002语言教育2002,,11:0
8THE'HEART SHOCK' OF ANTARCTICA Chinese eco-tourists on the southernmost continent显示文摘It's a bright Thursday morning in January when I meet polar explorer Wang Xiangyi.An older man,partial to stripes by the look of his jacket and shirt,he stares just past me as we talk,somewhere faraway towards his glacier-like blue glass office building.He begins to speak about Antarctica and what he's doing to preserve it.As president and chairman of the Chinese nonprofit Polar Explorer group,he has sailed to the icy region four times.CHRISIINE UILBEKI 2015城市漫步(GBA版)2015,,2:0
9扩大高中英语词汇量与提高阅读能力的课堂教学尝试显示文摘《义务教育课程标准》要求:九年级学生的累计阅读量应为40万—50万字。但是笔者在教学工作中发现,阅读是学生学习英语的重要难点之一,而其中学生词汇量的缺乏是影响其阅读效果和阅读习惯的直接原因。因此如何为学生们铺垫好他们在阅读中所需要认知的单词成为我当前要解决的问题。通过平时的教学观察发现,初中阶段的一些高难词汇但同时又是阅读中常出现的高频词汇是可以总结整理出来的(如individual,preserve,acknowledge等)。杨娜 2014英语学习2014,0,12X:0
10Animating fossilized invertebrates by motion reconstruction显示文摘Fossils preserve valuable evolutionary traces of ancient species,waiting to be unveiled by scientists.Similarly to completing a jigsaw puzzle,scientists assemble the evolutionary history of extinct organisms by piecing together static anatomical features,dynamic motion clues or a combination of both.Compared with static information,dynamic information is more difficult to extract from photo-like fossils.王子鑫 张威 黎家豪 王吉 杨运强 包童 吴嘉宁 王博 2023National Science Review2023,10,12:0
11Cycling the Grand Canal显示文摘'Ihope more individuals willjoin this endeavor and harness the power of imagery to document the Grand Canal and preserve its history.'Wang Lan Liu Shizhao 2023China Pictorial2023,,11:0
12New pharmacological tools:the use of diterpenes to promote adult hippocampal neurogenesis显示文摘Tissue regeneration maintains homeostasis and preserves the functional features of each tissue.However,not all tissues show a strong repairing capacity.This is the case of the central nervous system.It is now well established that the generation of new functional neurons from stem cells in the adult brain occurs in specific regions of the brain of different species such as rodents,birds,primates,and humans(Eriksson et al.,1998).Ricardo Gomez-Oliva Pedro Nunez-Abades Carmen Castro 2024Neural Regeneration Research2024,19,8:0
13BRIDGES AND RIVERS ALONG THE CENTRAL AXIS显示文摘A few days ago,government departments in Beijing began to prepare the Guideline for Planning and Designing River Channels throughout Bejing.The guideline focuses on bridges and water channels along the city's Central Axis,including Yongdingmen Bridge over South Moat and Tianqiao('Bridge of Heaven'),in an effort to further preserve the layout of old Beijing.Wang Wei Jin Jianhui(Photos) Xiao Zhuang(Photos) Zhang Xin(Photos) 2021Beijing2021,,19:0
14AN ELASTOPLASTIC PROBLEM WITH FRICTIONS显示文摘This looper discusses on elastoplastic problem with frictions given on a part of theboundary.Assuming that friction follows simplified Coulom’s law,the author gives anexplicit relaxation of energy and proves that the solution exists.汤奇 1990Chinese Annals of Mathematics,Series B1990,11,4:0
15RENEWED IDENTITY Designing a Mixed-Use Complex that Matches the Ethos of Cutural Hangzhou显示文摘Project name:BO Space Location:Hangzhou,Zhejiang province Area:3,000 square meters Design company:WJ Design The brief:Located near Xixi Wetland Park,BO Space is a mixed-use complex converted from an old industrial space.Complete with a spacious courtyard,dining options,a fashion boutique and art exhibition space,WJ Design envisioned the space as a reflection of today's Hangzhou-a rapidly developing city in search of ways in which smart design can help preserve and reinvent its cultural identity.Dominic Ngat Xue Juetao 2019城市漫步(GBA版)2019,,5:0
16The Roots and Fruits of Chinese Spring Festival显示文摘The Chinese New Year-the most important holiday in the country-offers a window into China’s past and present.T RADITIONAL festivals forge a nation’s cultural identity and solidarity.Through opulent customs and celebratory activities,they convey the collective psyche,emotions,and aspirations of a nation.As a key part of Chinese culture,traditional Chinese festivals reinforce the bond among Chinese people and preserve our cultural roots.LI GANG 2024China Today2024,73,2:0
17第一单元:新中国的十七年电影(1950-1966年)(英文)显示文摘Diverse and Colorful Nation-State Building of Multi-Ethnic China The year 1949 was a new beginning in China’s history.At the time,flames of war were smoldering and a united multi-ethnic nation was standing up.In 1954,the first Constitution of the People’s Republic of China asserted that the People’s Republic of China is a singular nation in which all ethnic groups are equal and reserve the right to exercise their own spoken and written languages,as well as the freedom to preserve their customs.In essence,’diversity in ethnic groups’was oneHU Puzhong 2013China's Ethnic Groups2013,0,S1:0
18A FEATHER IN THE CAP显示文摘South Xinjiang preserves traditional culture through fashionable means Heavenly lakes as blue as the wings of a mythical halcyon bird,the smells of roasting meat penetrating the night air,exuberant embroidery decorating furnishings and hemlines…Welcome to Xinjiang Uygur Autonomous Region.Elsbeth van Paridon 2022Beijing Review2022,65,33:0
19ISOLATION AND CHARACTERIZATION OF BIOACTIVE COMPOUNDS FROM ENDOPHYTES ASSOCIATED WITH MEDICINAL PLANTS显示文摘In the field of natural products,plants have proven their interest as a source of lead compounds in drug discovery.Nevertheless,in the context of biodiversity preservation,researchers recently focused their work on renewable sources,like micromycetes,which present the ability to modulate their metabolism depending on the substrate.Fungi are one of nature’s most promising source forMohamed Haddad 2015World Journal of Traditional Chinese Medicine2015,1,4:0
20THE EFFECTS OF REFREEZING ON THE CELL'S VIABILITY OF HUMAN PULMONARY ARTERY显示文摘The application of human homograft has been popular in cardiovascular surgeryand shown perfect effects.But the difficulty to get graft greatly limited its clinical ap-plication.The thawed homograft can not be used in some cases since it is not clearwhether it can be re-cryopreserved without damage.We conducted the present studyto know the changes in viability of the homograft after refreezing in six human pul-Ningguo Xie Jianhua Guo Jiaqiang Guo Xuejun Wu Zhitao Qi Jiang Hui Fu Wai Hospital and Cardiovasular Institute,Chinese Academy of Medical Sciences,Beijing 100037,China 1993Chinese Journal of Biomedical Engineering(English Edition)1993,2,3:0
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