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| 1 | Present Situation of the Anti-Fatigue Processing of High-Strength Steel Internal Thread Based on Cold Extrusion Technology:A Review显示文摘The adoption of cold-extrusion forming for internal thread net forming becomes an important component of anti-fatigue processing with the development of internal thread processing towards high performance, low cost and low energy consumption. It has vast application foreground in the field of aviation, spaceflight, high speed train and etc. The internal thread processing and anti-fatigue manufacture technology are summarized. In terms of the perspective of processing quality and fatigue serving life, the advantages and disadvantages of the processing methods from are compared. The internal thread cold-extrusion processing technology is investigated for the purpose of improving the anti-fatigue serving life of internal thread. The superiorities of the plastic deformation law and surface integrity of the metal layer in the course of cold extrusion for improving its stability and economy are summed up. The proposed research forecasts the development tendency of the internal thread anti-fatigue manufacturing technology. | Hong MIAO Cheng JIANG Sixing LIU Shanwen ZHANG Yanjun ZHANG | 2017 | Chinese Journal of Mechanical Engineering2017,30,2: | 5 |
| 2 | Optimal Spectrum Sensing in Energy Harvesting Cognitive Radio Systems显示文摘In this paper,we consider a cognitive radio system with energy harvesting,in which the secondary user operates in a saving-sensing-transmitting(SST) fashion.We investigate the tradeoff between energy harvesting,channel sensing and data transmission and focus on the optimal SST structure to maximize the SU's expected achievable throughput.We consider imperfect knowledge of energy harvesting rate,which cannot be exactly known and only its statistical information is available.By formulating the problem of expected achievable throughput optimization as a mixed-integer non-linear programming one,we derive the optimal saveratio and number of sensed channels with indepth analysis.Simulation results show that the optimal SST structure outperforms random one and performance gain can be enhanced by increasing the SU's energy harvesting rate. | QU Zhaowei SONG Qizhu YIN Sixing | 2014 | China Communications2014,11,5: | 4 |
| 3 | 全球数字平台劳动者就业研究显示文摘国际劳工组织于2015年和2017年开展了两次问卷调查,样本覆盖全球75个国家的3500名劳动者。这些劳动者在全球运作的5家大型微任务平台工作。基于问卷调查结果,本文阐述了劳动者的基本特点及其从事这类工作任务的动机,分析了微任务平台的工作条件,介绍了鼓励平台和平台用户遵守最低标准的做法与实践,并提出了改善数字就业平台工作条件的一系列原则。 | Janine Berg Marianne Furrer Ellie Harmon Uma Rani M Six Silberman 孟彤 | 2019 | 中国劳动2019,,4: | 3 |
| 4 | A history of research on the link between (micro)aggregates, soil biota, and soil organic matter dynamics显示文摘 | J Six H Bossuyt S Degryze K Denef | 2004 | Soil & Tillage Research2004,,1: | 3 |
| 5 | FROST RESISTANCE OF POLYVINYL ALCOHOL FIBER REINFORCED CEMENTITIOUS COMPOSITES显示文摘This article studies the frost resistance of polyvinyl alcohol (PVA) fiber reinforced cementitious composites. The test samples contain different PVA fiber volume fractions such as 0, 0.5%, 1% and 2%. The freeze-thaw test is carried on in TDR type apparatus. The outward appearance, the weight loss factor and the relative dynamic elastic modulus are analyzed, and conclusions are drawn that PVA fibers can significantly improve the frost resistance of cementitious composites and frost resistance of PVA fiber reinforced cementitious composites with fiber volumetric fraction of 1% is better. | Jianwen Bai 1 Shuguang Liu 1 Rongyue Guo 2 Rong Xu 3 ( 1 Institute of Mining Technology, Inner Mongolia University of Technology, Hohhot 010051, China) ( 2 Testing Center of China Railway Group Six Hohhot Railway Bureau Construction CO. LTD, Hohhot 010050, China) ( 3 Civil Engineering and Architectural, Inner Mongolia Institute of Architectural Technology, Hohhot 010070, China) | 2011 | Acta Mechanica Solida Sinica2011,24,S1: | 3 |
| 6 | Soil macroaggregate turnover and microaggregate formation: a mechanism for C sequestration under no-tillage agriculture显示文摘 | J Six E.T Elliott K Paustian | 2000 | Soil Biology and Biochemistry2000,,14: | 3 |
| 7 | Stabilization mechanisms of soil organic matter: Implications for C-saturation of soils显示文摘 | J. Six R. T. Conant E. A. Paul K. Paustian | 2002 | Plant and Soil2002,,2: | 3 |
| 8 | BioTSA: Annotating Token Semantic Association to Support Biomedical Text Mining显示文摘Corpus is a kind of important resource for knowledge acquisition in the natural language processing(NLP). However, up to now, in the biomedical domain comparatively fewer corpus focus on semantic association among all tokens in a sentence. We proposed an annotation scheme based on feature structure theory for enriching biomedical domain corpora with token semantic association(TSA). There are 227 documents of the Bio NLP GE ST training data annotated to form TSA corpus in which each annotated item shows a token semantic association that appears as a triple. The annotation of token semantic association has the potential to significantly advance biomedical text mining by providing rich token semantic information for NLP systems especially for the sophisticated IE systems, such as bio-event extraction. | WEI Xiaomei HUANG Sixing CHEN Bo JI Donghong | 2015 | Wuhan University Journal of Natural Sciences2015,20,2: | 2 |
| 9 | Soil macroaggregate turnover and microaggregate formation: a mechanism for C sequestration under no-tillage agriculture显示文摘 | J Six E.T Elliott K Paustian | 2000 | Soil Biology and Biochemistry2000,,14: | 2 |
| 10 | Characterization of solid dispersions of itraconazole and hydroxypropylmethylcellulose prepared by melt extrusion—part I显示文摘 | Geert Verreck Karel Six Guy Van den Mooter Lieven Baert Jef Peeters Marcus E. Brewster | 2002 | International Journal of Pharmaceutics2002,,1: | 2 |
| 11 | Future trends in soil cadmium concentration under current cadmium fluxes to European agricultural soils显示文摘 | L. Six E. Smolders | 2014 | Science of the Total Environment2014,,: | 2 |
| 12 | Identification of phase separation in solid dispersions of itraconazole and Eudragit(R) E100 using microthermal analysis显示文摘 | Murphy J Weuts I | 2003 | Pharm Res2003,20,1: | 1 |
| 13 | GIS - Application Development with GeoOOA显示文摘 | Kosters G Pagel B Six H | 1997 | Geographical Information Science1997,11,4: | 1 |
| 14 | Stabilization mechanisms of soil organic matter: Implications for C-saturation of soils显示文摘 | Six J Conant R T Paul E A | 2002 | Plant Soil2002,241,: | 1 |
| 15 | The potential to mitigate global warming with no-tillage management is only realized when practised in the long term显示文摘 | Six J Stephen M O Breidt F J | 2004 | Global Change Biology2004,10,2: | 1 |
| 16 | Aggregate and soil organic matter dynamics under conventional and no-tillage systems显示文摘 | Six J Elliott ET Paustian K | 1999 | Soil Sci Soc Am J1999,63,5: | 1 |
| 17 | Charac- terization of solid dispersions of itraconazole and hydroxypropylm- ethylcellulose prepared by melt extrusion-part I 显示文摘 | VERRECK G SIX K VAN DEN MOOTER G | 2003 | Int J Pharm2003,251,1: | 1 |
| 18 | Do growth yield efficiencies differ between soil microbial communities differing in fungal:bacterial ratios? Reality check and methodological issues显示文摘 | Rachel K. Thiet Serita D. Frey Johan Six | 2005 | Soil Biology and Biochemistry2005,,4: | 1 |
| 19 | Multiobjective battery storage to improve pv integration in residential distribution grids显示文摘 | Tant J Geth F Six D | 2013 | IEEE Transactions on SustainableEnergy2013,4,1: | 1 |
| 20 | Genetic relationships among Leptographium terebrantis and the mycangial fungi of tree western Dendroctonus bark beetle显示文摘 | Six D L Harrington T C | 2003 | Mycologia2003,95,: | 1 |