检索结果-南通市图书馆

Planet wind: Planetary evolution dominated by electromagnetic forces

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2024年第10期67卷 3331-3336页

作者： yong wei Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

1. Introduction Over the five centuries since Copernicus, the focus of planetary science has transitioned from the visible realm to the invisible. In the more than 60 years following the advent of the space age, our a... 详细信息

关键词： evolution dominated planetary

Network pharmacology:Changes the treatment mode of"one disease-one target"in cancer treatment

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2025年第1期17卷 268-271页

作者： Shuai Liu yong-wei Yu Department of Cardiology The First People’s Hospital of JiashanJiaxing 314100Zhejiang ProvinceChina Department of Critical Care Medicine The First Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310000Zhejiang ProvinceChina

The article concluded that network pharmacology provides new ideas and insights into the molecular mechanism of traditional Chinese medicine(TCM)treatment of *** is a new choice and hot spot in the field of cancer *** have also previously published studies on TCM and network *** this letter,we summarize the new paradigm of network pharmacology in cancer treatment mechanisms.

关键词： Network pharmacology Cancer Multicomponent Multitarget Therapy

Equatorial aurora: the aurora-like airglow in the negative magnetic anomaly

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Review 2020年第10期7卷 1606-1615页

作者： Fei He yong wei weixing Wan Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics Chinese Academy of Sciences College of Earth and Planetary Sciences University of Chinese Academy of Sciences

The most fantastic optical phenomena in the Earth’s upper atmosphere are the auroras. They are highly informative indicators of solar activity, geomagnetic activity, upper atmospheric structures and dynamics,and magnetospheric energetic particles. An area where the geomagnetic field differs significantly from the expected symmetric dipole, such as at the South Atlantic Anomaly, where the magnetic field intensity is low,gives rise to stronger precipitation of energetic particles into the upper atmosphere. Impact excitation and the subsequent airglow emissions exhibit aurora-like dynamic signatures. Nomenclatures of nonpolar aurora or equatorial auroras are similar to those used with the polar auroras owing to their similar excitation mechanisms. This paper provides an overview of the knowledge and the challenges concerning auroral activity at the South Atlantic Anomaly, or more generally, at the negative magnetic anomaly. We emphasize systematic investigation of the equatorial auroras to reveal the temporal and spatial evolution of the magnetic anomaly and the behaviour of energetic particles in near-Earth space.

关键词： aurora geomagnetic field South Atlantic Anomaly negative magnetic anomaly energetic particles

An orthogonal basis for non-uniform algebraic-trigonometric spline space

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics(A Journal of Chinese Universities) 2014年第3期29卷 273-282页

作者： wei yong-wei WANG Guo-zhao Department of Mathematics Shanghai Maritime University Department of Mathematics Zhejiang University

Non-uniform algebraic-trigonometric B-splines shares most of the properties as those of the usual polynomial B-splines. But they are not orthogonai. We construct an orthogonal basis for the n-order（n ≥ 3） algebraic-trigonometric spline space in order to resolve the theo- retical problem that there is not an explicit orthogonai basis in the space by now. Motivated by the Legendre polynomials, we present a novel approach to define a set of auxiliary functions, which have simple and explicit expressions. Then the proposed orthogonal splines are given as the derivatives of these auxiliary functions.

关键词： CAGD algebraic-trigonometric spline space NUAT B-spline orthogonal spline

Chinese Medicines in Diabetic Retinopathy Therapies

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2019年第4期25卷 316-320页

作者： SONG wei ZHU yong-wei Department of Ophthalmology Jiaxing Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical UniversityZhejiang Province(314000)China

Diabetic retinopathy(DR),a chronic microvascular retinal disorder leading to retinal nonperfusion and ischemia,is one of the leading causes of blindness among individuals of working ***?ammation and neovascularization play important roles in the development of DR,especially proliferative DR(PDR).Therapies with Chinese medicines(CMs) that improve microcirculation complementary to conventional treatments increase the chances of delaying PDR development and improving visual acuity in diabetes *** review aimed to introduce promising CMs targeting DR patients in clinical practice,together with their underlying molecular mechanisms.

关键词： diabetic retinopathy Chinese medicine inflammation neovascularization

AIE-active Polymers for Explosive Detection

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2017年第2期35卷 141-141,142-154页

作者： yong-wei Wu 秦安军唐本忠 Guangdong Innovative Research Team State Key Laboratory of Luminescent Materials and DevicesSouth China University of Technology Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionThe Hong Kong University of Science & Technology

Super-sensitive and ultra-selective detection of explosives plays a crucial role in anti-terrorism operations, homeland security, civilian safety and environment protection. Among the developed fluorescent probes, the polymers with aggregation-induced emission （AIE） characteristics have drawn much attention due to their bright emission in the aggregate and solid states. However, no review has summarized the development of AIE-active polymers for explosive detection. Herein, we reviewed the recent progress on using AIE-active polymers to detect explosives with super-amplification quenching effect. Moreover, the challenges and opportunities in this area were also briefly discussed.

关键词： Aggregation-induced emission Polymer Explosive Fluorescent sensor Super-amplification effect

Stagnant low-energy ions in the near cusp region observed by Cluster

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2017年第7期60卷 1299-1309页

作者： LI Kun wei yong WAN weiXing Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics Chinese Academy of Sciences Lunar and Planetary Science Laboratory Macao University of Science and Technology-Partner Laboratory of Key Laboratory of Lunar and Deep Space Exploration Chinese Academy of Sciences College of Earth Sciences University of Chinese Academy of Sciences

Measuring the low-energy ions in the Earth's magnetotail lobes is difficult, because a spacecraft becomes positively charged in a sunlit and tenuous plasma environment. Recent studies have introduced a new method, making use of the positive electric potential on the Cluster spacecraft, to measure the low-energy ions(less than a few tens of electronvolts) in the polar caps/magnetotail lobes in the years 2001–2010. With the measured velocities, we are able to study the trajectories of these low-energy ions. Particle tracing has been used in previous studies, confirming that ions of ionospheric origin are the dominant contributor to the ion population in the Earth's magnetotail lobes. In this work, we continue to study the source of low-energy ions measured in the lobes. We found that not all of the low-energy ions in the lobes come directly from the ionosphere. Particle tracing infers that some of the low-energy ions start to move tailward from the cusp/near-cusp region with a zero parallel velocity. In the following, we refer to these low-energy ions as stagnant low-energy ions. On the other hand, the in situ measurements by Cluster show a population of low-energy ions in the cusp/near-cusp region with pitch angles near 90°(i.e., no significant parallel velocity).The locations of stagnant low-energy ions are determined by particle tracing and in situ measurements. Similar ion energies and spatial distributions determined by these two methods confirm the presence of the stagnant low-energy ion population.

关键词： Ionospheric outflow Low-energy ion Potential energy balance Ion stagnation

On Isotope Thermometers

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 1997年第3期14卷 169-172页

作者： wei Zhi-yong ZHU yong-tai Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000

The ratio of isotope yields integrated over a part of their energy spectrum is proposed to extract nuclear temperature of the excited emitter nucleus formed in heavy ion *** nuclear temperature extracted from the isot... 详细信息

关键词： states. excited spectrum

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

岁星四纪——回望木星大气探测50年

地球与行星物理论评（中英文） 2025年第1期56卷 67-82页

作者：宋心仪杨军魏勇北京大学物理学院大气与海洋科学系气候与海-气实验室北京100871 中国科学院地质与地球物理研究所地球与行星物理重点实验室北京100029

木星是太阳系中最大的行星,也是自转速度最快的行星.作为一颗气态巨行星,木星没有海陆分布、复杂地形等因素的影响,是研究大气动力学的天然试验场.木星的大气成分、大气环流、内部结构特征等都具有重要的科学意义.1973年12月4日,先驱者1... 详细信息

木星是太阳系中最大的行星,也是自转速度最快的行星.作为一颗气态巨行星,木星没有海陆分布、复杂地形等因素的影响,是研究大气动力学的天然试验场.木星的大气成分、大气环流、内部结构特征等都具有重要的科学意义.1973年12月4日,先驱者10号飞掠木星,实现了人类第一次木星大气近距离探测.如今木星探测已经积累了50余年的经验,发射了10次木星任务:7次飞掠任务、伽利略号与朱诺号两次环绕任务、正在飞行途中的木星冰卫星探测任务.本文简要回顾了这10次探测任务及其取得的科学成果,重点关注木星的大气成分、波动和急流、大红斑、极地涡旋等方面取得的进展,并指出一些尚未解决的科学难题.我国计划于2030年左右发射天问四号,对木星系进行探测.回顾过去的木星探测任务,对于天问四号如何合理设计科学载荷、制定科学目标等具有一定的借鉴意义.

关键词：木星探测大气成分大气动力急流大红斑极地涡旋