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chemistry (113) 113
metallurgy (113) 113
physics (80) 80
electricity (75) 75
basic electric elements (58) 58
apparatus therefor (54) 54
crystal growth (49) 49
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after-treatment of single crystals or a homogeneouspolycrystalline material with defined structure (35) 35
production of a homogeneous polycrystalline material withdefined structure (35) 35
refining by zone-melting of material (35) 35
single crystals or homogeneous polycrystalline material withdefined structure (35) 35
single-crystal-growth (35) 35
unidirectional solidification of eutectic material orunidirectional demixing of eutectoid material (35) 35
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general tagging of cross-sectional technologies spanning over several sections of the ipc (21) 21
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technical subjects covered by former uspc cross-reference art collections [xracs] and digests (21) 21
technologies or applications for mitigation or adaptation againstclimate change (21) 21
晶体结构 (20) 20
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physical or chemical processes or apparatus in general (19) 19
calculating (17) 17
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general methods of organic chemistry (17) 17
compounds thereof (16) 16
non-metallic elements (16) 16
preparations for medical, dental, or toilet purposes (16) 16
indexing scheme relating to structural and physical aspects ofsolid inorganic compounds (14) 14
investigating or analysing materials by determining theirchemical or physical properties (14) 14
specific therapeutic activity of chemical compounds ormedicinal preparations (14) 14
光子晶體 (14) 14
acyclic or carbocyclic compounds (13) 13
climate change mitigation technologies in the production orprocessing of goods (13) 13
heterocyclic compounds (13) 13
adhesives (12) 12
data processing systems or methods, specially adapted foradministrative, commercial, financial, managerial, supervisoryor forecasting purposes (12) 12
devices or arrangements, the optical operation of which ismodified by changing the optical properties of the medium of thedevices or arrangements for the control of the intensity,colour, phase, polarisation or direction of light, e.g.switching, gating, modulating or demodulating (12) 12
dyes (12) 12
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systems or methods specially adapted for administrative,commercial, financial, managerial, supervisory or forecastingpurposes, not otherwise provided for (12) 12
techniques or procedures for the operation thereof (12) 12
basic electronic circuitry (11) 11
chemical or physical processes, e.g. catalysis or colloidchemistry (11) 11
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steroids (11) 11
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中国 (11) 11
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reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (9) 9
阅读知识 (9) 9
crystal structure (8) 8
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materials for miscellaneous applications, not provided forelsewhere (8) 8
photoluminescence (8) 8
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separation (8) 8
tio (8) 8
processes or means, e.g. batteries, for the direct conversionof chemical into electrical energy (7) 7
sol-gel method (7) 7
zno (7) 7
薄膜電晶體 (7) 7
语文学习 (7) 7
compounds containing metals not covered by subclassesc01d or c01f (6) 6
diamond (6) 6
electric communication technique (6) 6
impedance networks, e.g. resonant circuits (6) 6
manufacture or treatment of nanostructures (6) 6
measurement or analysis of nanostructures (6) 6
mocvd (6) 6
nanotechnology (6) 6
resonators (6) 6
specific uses or applications of nanostructures (6) 6
transparent conducting films (6) 6
人生 (6) 6
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1990, Beijing di 1 ban., ISBN 9787800501562, 8, 1266
Book
2012, 1 ban., ISBN 9571165220, 2, 2, 2, 2, 3, 5, 2948
Book
1996, Di 1 ban., ISBN 7543202093, 8, 1279
Book
1989, Di 1 ban., ISBN 9787220005244, 5, 3, 5, 73, 455
Book
by 韩伟
人民法治, ISSN 2095-879X, 2015, Issue 1, pp. 84 - 85
... 
Journal Article
Technological Forecasting & Social Change, ISSN 0040-1625, 04/2016, Volume 105, pp. 167 - 178
Journal Article
Physica A: Statistical Mechanics and its Applications, ISSN 0378-4371, 12/2019, Volume 536, p. 121004
When the product quality is limited and the information capability is variable, we propose the enterprise enhances corporate profits by changing the... 
Market choice | Information variable | Information capability | Supply–demand law
Journal Article
Physica A: Statistical Mechanics and its Applications, ISSN 0378-4371, 12/2019, Volume 535, p. 122352
This paper uses the multi-layer network to study the influence of consumer’s information perception and consumer’s quality perception on market demand. In the... 
Two-tier model | Information perception | Quality perception | Market demand
Journal Article
大江南北, ISSN 1004-7891, 2017, Issue 11, pp. 34 - 34
中纪委监察部网站的专题栏目"忏悔与剖析"自2015年2月推出以来,3年间已晒出多起典型违纪违法案件及当事者的"忏悔书",令人深思的是,这些违纪违法者都不约而同的在"忏悔书"中谈到了他们实施贪腐行为的"第一次出轨"。 
违法者 | 违纪 | 违法案件
Journal Article
Information (Switzerland), ISSN 2078-2489, 04/2018, Volume 9, Issue 4, p. 87
Availability is one of the main concerns of cloud users, and cloud providers always try to provide higher availability to improve user satisfaction. However,... 
Availability | Cloud computing | Auction mechanism | Service credit | Demand | User satisfaction | Approximation | Mathematical analysis | Pricing | Resource allocation | auction mechanism | availability | cloud computing | service credit
Journal Article
Mathematical Problems in Engineering, ISSN 1024-123X, 2018, Volume 2018, pp. 1 - 11
Journal Article
红外与毫米波学报, ISSN 1001-9014, 2017, Volume 36, Issue 6, pp. 739 - 743
Journal Article
Complex Systems and Complexity Science, ISSN 1672-3813, 03/2017, Volume 14, Issue 1, pp. 75 - 80
Journal Article
生物学教学, ISSN 1004-7549, 2016, Volume 41, Issue 2, pp. 43 - 44
本文对20种植物叶枕细胞的显微结构进行了观察,发现各种植物的叶枕均清晰地存在晶体;提供了这些植物晶体的含量、类型和分布部位的数据及部分植物叶枕晶体的显微照片。 
晶体 | 叶枕 | 植物细胞
Journal Article
Computer Integrated Manufacturing Systems, ISSN 1006-5911, 06/2015, Volume 21, Issue 6, pp. 1417 - 1427
To construct an effective mechanism and a reasonable method for innovative product development, the complex network theories were applied to analyze tasks'... 
Networks | Sand | Tasks | Thresholds | Dynamics | Strategy | Decentralized | Research and development
Journal Article
Jisuanji Jicheng Zhizao Xitong/Computer Integrated Manufacturing Systems, CIMS, ISSN 1006-5911, 06/2015, Volume 21, Issue 6, pp. 1417 - 1427
Journal Article
北京纪事, ISSN 1005-9075, 2013, Issue 6, pp. 86 - 87
人的一生,时刻也离不开心脏的跳动。正常情况下,心脏依照身体需要,每天约跳动10万次左右,心率是心脏每分钟搏动的次数,正常情况下窦房结每分钟发出60-100次激动,故正常成人的心率为60-100次/分。当心脏自律性异常或激动传导障碍时,可以引起心动过速、过缓或心律不齐以及传导阻滞等, 
心脏 | 自律性 | 心律失常 | 常情 | 心率 | 传导阻滞
Journal Article
Complex Systems and Complexity Science, ISSN 1672-3813, 09/2016, Volume 13, Issue 3, pp. 47 - 57
Journal Article
中北大学学报:自然科学版, ISSN 1673-3193, 2015, Volume 36, Issue 2, pp. 230 - 233
为探究声子晶体的声波控制机理,研究了声波在声子晶体中的传播行为。通过分析声波激励声子晶体元胞的局域共振响应特性,计算了局域共振型声子晶体的频率响应。运用 comsol 软件模拟线声源激励在声子晶体薄板后汇聚成点声源。基于光外差测量平台进行了声传输实验,测量汇聚点的声压,并利用NE564组成中心频率为40 MHz... 
传输特性 | 锁相环 | 频率响应 | 声子晶体
Journal Article
中国外汇, ISSN 1673-5528, 2016, Issue 20, pp. 24 - 25
我国部分地区税务机关加大了针对跨境劳务的税收征管,一旦非居民企业被认定为中国境内的“常设机构”,其税务管理成本和风险就会显著增加。 
税务机关 | 劳务 | 中国境内 | 非居民企业 | 税务风险 | 跨境 | 税收征管 | 常设机构
Journal Article
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