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Science Foundation in China 2007年第2期15卷 18-20页

作者： The Chinese collaboration team at YangBaJing Cosmic Ray Observatory

Based on some 40 billion cosmic ray events collected from 1997 to 2005 by the Tibet Air Shower Array experiment(a major scientific collaboration between China and Japan)operating at the Yang- BaJing Cosmic Ray Observa... 详细信息

关键词：银河系宇宙射线各向异性同步旋转

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保护长城,人人有责

中国少年儿童 2025年第1期 36-37页

作者：唐玥 team-WOLF(图) 不详

大圣提醒:长城的一墙一石、一砖一瓦都浸透着古代人民的智慧和汗水,也承载着重要的文化价值和历史价值,爱护长城等文化遗产是我们作为中华儿女共同的责任和使命。《长城保护条例》《北京市长城保护管理办法》对保护长城有明文规定。

关键词：长城保护人民的智慧文化遗产责任和使命北京市

Analysis of a Peaked Carbon Emission Pathway in China Toward Carbon Neutrality

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Engineering 2021年第12期7卷 1673-1677页

作者： Project team on the Strategy and Pathway for Peaked Carbon Emissions and Carbon Neutrality Chinese Academy of Engineering Beijing 100088China

*** Climate change is currently the most significant untraditional challenge to human *** countries have reached an agreement to reduce their carbon emissions to address this challenge[1,2].As the world’s second largest economy,largest energy consumer,and largest carbon dioxide emitter,China plays an important and constructive role in global climate governance[3].Thus far,carbon dioxide emissions(referred to herein as“carbon emissions”)have peaked in over 50 countries,including the United States,whose carbon emissions peaked in 2007.

关键词： dioxide emissions consumer

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印制电路板制造业的全球演变转移

印制电路信息 2025年第1期33卷 56-61页

作者： I-Connect007 Editorial team “电子首席情报官”编辑组(译) 电子首席情报官”编辑组

探讨亚洲印制电路板(PCB)制造商在全球的技术领先地位,以及这一现象对西方制造商的影响。根据沪士公司中国区高管Joe Dickson的观察和经验,分析亚洲与西方PCB制造商之间的技术互补性,以及新材料,如陶瓷、玻璃和硅基板在电子封装领域的... 详细信息

探讨亚洲印制电路板(PCB)制造商在全球的技术领先地位,以及这一现象对西方制造商的影响。根据沪士公司中国区高管Joe Dickson的观察和经验,分析亚洲与西方PCB制造商之间的技术互补性,以及新材料,如陶瓷、玻璃和硅基板在电子封装领域的应用前景。同时,讨论PCB制造业面临的挑战,包括大面板加工技术、感应压合技术、减蚀工艺的限制,以及西方各国电路板产业的困局。最后,展望PCB技术的未来发展趋势,强调载板加工的重要性,揭示经济高效制造的方向。

关键词： PCB技术挑战新材料封装载板

Results obtained by geodetic instruments of SELENE (KAGUYA)

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Science China(Physics,Mechanics & Astronomy) 2010年第12期53卷 2188-2193页

作者： KAWANO Nobuyuki VRAD/RSAT team LALT team Shanghai Astronomical Observatory

Japanese lunar explorer SELENE (KAGUYA) was equipped with 14 instruments for various measurements of the Moon. Three of these instruments took geodetic measurements of the Moon. These were two sub-satellites and a laser altimeter. The main results obtained by the instruments are: (1) precise orbit determination with an accuracy of ten meters by Doppler and same-beam VLBI; (2) the first precise gravity fields on the lunar far side by 4-way Doppler measurements; (3) the first topography in latitudes higher than 86 degrees; (4) a global map of the gravity anomaly by using the global topography and the global gravity fields; (5) a global map of the lunar crustal thickness and (6) an illumination rate map in the north and south polar regions.

关键词： SELENE gravity field lunar far side topography gravity anomaly crustal thickness illumination rate

Sawtooth Control Experiments on HT-7 and EAST Tokamak

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Plasma Science and Technology 2012年第4期14卷 278-284页

作者：刘子奚高翔揭银先丁伯江杨曜 HT-7 team EAST team Institute of Plasma Physics Chinese Academy of Sciences

Sawtooth control experiments were performed on HT-7 with a limiter configuration and on the Experimental Advanced Superconducting Tokamak （EAST） with a double null con- figuration. The sawtooth period can be modified by lower hybrid wave （LHW） and ion cyclotron resonance frequency （ICRF）. Different sawtooth behavior was observed with the same plasma density, LHW power but different plasma currents on HT-7. There was a dwell time between LHW added and the sawtooth stabilization on HT-7 while the sawtooth stabilization immediately happened when LHW power was injected on EAST. The possible mechanism of the sawtooth control is discussed in this paper. All the experimental results have proved that power deposition of the radio frequency （RF） should be the key factor for sawtooth control.

关键词： LHW ICRF sawtooth control

Energy Confinement of both Ohmic and LHW Plasma on EAST

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Plasma Science and Technology 2011年第3期13卷 312-315页

作者：杨曜高翔 EAST team Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China

Study on the characters of energy confinement in both Ohmic and lower hybrid wave （LHW） discharges on EAST is conducted and the linear Ohmic confinement （LOC）, saturated ohmic confinement （SOC） and improved Ohmic confinement （IOC） regimes are investigated in this paper. It is observed that an improved confinement mode characterized by both a drop of IDa line intensity and an increase in line average density can be triggered by a gas puffing pulse.

关键词： energy confinement LHW plasma Ohmic heating EAST

Development of Powerful RF Plasma Sources for Present and Future NBI Systems

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Plasma Science and Technology 2004年第1期6卷 2135-2140页

作者： E.Speth NBI-team Max-Planck-Institut fiir Plasmaphysik 85748 Garching Germany EURATOM-AssociationMax-Planck-Institut fiir Plasmaphysik 85748 Garching Germany EURATOM-Association

This paper deals with the topic of RF plasma sources and their application inhigh-power neutral beam heating systems for nuclear fusion devices. RF sources represent aninteresting alternative to the conventional arc discharge sources. Due to the absence of hotfilaments they exhibit an inherent simplicity both in mechanical and electrical aspects andconsequently offer advantages in terms of cost savings, gain in availability and reliability andreduced maintenance. This renders the RF plasma source attractive for any long pulse (> 10 sec) NBIsystem and in particular for the ITER NBI system. The latter, however, requires that the RF plasmasource is also capable of delivering negative rather than positive hydrogen ions. In the first partof the paper the types, characteristics and operation experience of RF plasma sources for positiveions in operation are described. The second part is devoted to the development for ITER NBI: thebasic requirements, physics and technology issues and the present status are discussed.

关键词： neutral beam injection negative ions RF plasma source