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Search Results: 1 - 10 of 28536 matches for " 程倩倩 "
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基于基本要素方法的中文自动文本摘要模型*
倩倩,田大钢
现代图书情报技术 , 2010,
Abstract: ?提出一种基于基本要素方法的中文自动文本模型(besm)。该模型主要借鉴基本要素的思想进行建立,和单纯的基于词的自动文摘模型相比,它将语义信息作为评估句子重要程度的一部分,实现基本要素中提出的将语义信息和统计方法的结合。通过与普通方法的实例对比,突出基本要素方法的优越性和besm模型的可行性。关键词:基本要素方法,?besm,?中文自动文本???
逆向创新研究脉络梳理与未来展望
单娟,,倩倩
科技进步与对策 , 2014, DOI: 10.6049/kjjbydc.2014060114
Abstract: 新兴市场的崛起使越来越多的创新源自发展中国家,并回流到发达国家乃至全球市场,即逆向创新。逆向创新对跨国公司乃至新兴国家后发企业的发展至关重要。首先对逆向创新的理论渊源和概念内涵进行阐释,然后梳理逆向创新研究演进脉络,尤其是对后发企业开展逆向创新的相关研究进行归纳总结,最后提出逆向创新理论的未来发展方向。逆向创新缘起内涵演进脉络研究现状
从创伤理论视角看电影《喜福会》中的创伤与疗伤
Trauma and Therapy in the Film The Joy Luck Club from the Perspective of Trauma Theory
 [PDF]

倩倩
World Literature Studies (WLS) , 2015, DOI: 10.12677/WLS.2015.34022
Abstract:
电影《喜福会》是一部家喻户晓的影片,近年来对于此作品的研究摆脱不了“东西文化冲突”、“女性主义”、“母女关系”等字眼,本文试图从创伤理论视角全面分析电影中母女的创伤,探讨创伤的来源并寻找疗伤的途径,希望读者从创伤理论视角对影片产生更为深刻的理解,也为华裔女性医治创伤提供借鉴。
The film The Joy Luck Club was a well-known film made on the basis of the novel of the same name. Recent studies mainly focus on the oriental and occidental cultural conflicts, feminism or relationship between mother and daughter. This paper tries to analyze the traumas of the four mothers and their daughters, the reasons for their traumas and possible means to cure traumas from the perspective of trauma theory in order to make readers have a profound understanding about the film and provide reference for Chinese-American women to cure their traumas in real life.
Automatic Chinese Summarization Model Based on Basic Elements Method
基于基本要素方法的中文自动文本摘要模型*

Cheng Qianqian Tian Dagang,
倩倩
,田大钢

现代图书情报技术 , 2010,
Abstract: 提出一种基于基本要素方法的中文自动文本摘要模型(BESM)。该模型主要借鉴基本要素的思想进行建立,和单纯的基于词的自动文摘模型相比,它将语义信息作为评估句子重要程度的一部分,实现基本要素中提出的将语义信息和统计方法的结合。通过与普通方法的实例对比,突出基本要素方法的优越性和BESM模型的可行性。
运用MEPDG建立季冻区水泥路面IRI预测修正模型
倩倩,培峰,魏玉伟,周兴业
- , 2018, DOI: 10.11918/j.issn.0367-6234.201709056
Abstract: 为解决季冻区水泥路面平整度预测问题,基于MEPDG构建了季冻区水泥路面国际平整度指数(IRI)预测修正模型.该模型充分考虑了交通状况、气候条件和道路各层材料的特性,在原有预测模型基础上对CRK、TFAULT、SPALL和SF 4个指标变化趋势进行分析并与IRI相关性进行了验证,利用SPSS分析软件提出适用于季冻区特点的水泥路面平整度指数预测修正模型,结合黑龙江省水泥路面调查数据进行验证.结果表明:气候、交通、材料参数均对构成预测国际平整度指数的4个指标CRK、TFAULT、SPALL和SF有显著影响;且4个指标和国际平整度指数线性拟合可靠度高;利用交通量、降水、降雨、潮湿天数、冻融循环次数,路面材料性能等参数可对季冻区水泥路面国际平整度指数进行预测.提出的预测修正模型预测的精确度高,具有良好的实用性和较高的预测性能.
To solve the problem of flatness prediction of cement pavement in seasonal frozen region, the international roughness index (IRI) prediction revised model of cement pavement in frozen season was constructed using MEPDG. The model takes into account the traffic conditions, climatic conditions, and the characteristics of the materials of the pavement layers. The trends of CRK, TFAULT, SPALL, and SF were analyzed and verified with IRI correlation on the basis of the original prediction model. SPSS analysis software was used to obtain the prediction revised model of cement pavement roughness index in seasonal frozen region. The cement pavement survey data of Heilongjiang Province was used to verify this model. The results show that climate, traffic, and material parameters had significant influence on the four indexes CRK, TFAULT, SPALL, and SF. These indicators and international flatness index were linearly fitted with high reliability. The number of traffic, precipitation, rainfall, wet days, the number of freeze-thaw cycles, and the performance of pavement materials can be used to predict the international flatness index of cement pavement in seasonal frozen region. The accuracy of the model was high, with good practicability and high predictive performance.
众筹情境下两方创新合作的利润博弈分析
刘志迎,倩倩,马朝良
- , 2017,
Abstract: 本文针对众筹过程中两大参与主体的特征,分析众筹情境中不同信息条件下投资方和筹资方的利润博弈过程,基于产量、产品投放度、折扣系数和创新度4个解释变量,对双方利益及决策的影响进行探讨,最终促使投资方和筹资方进行相应的策略选择.研究结果表明: 在完全信息条件下和不完全信息条件下,投资方和筹资方最终都能达到均衡状态,并获取各自最大收益,同时提出创新合作是一种双赢策略.
节水灌溉条件下不同施磷量对冬小麦磷素吸收利用的影响
倩倩,史桂清,,,
- , 2018, DOI: 10.7606/j.issn.1009-1041.2018.07.08
Abstract: 为提高节水灌溉条件下小麦磷素利用效率,以济麦22和石优20为材料,设置60、120和180 kg P2O5·hm-2三个磷素供应水平(分别用P60、P120和P180代表)研究了节水栽培下磷素(P)用量对小麦P吸收和利用特性的影响。结果表明,供试小麦品种在各生育时期植株干重均随施P水平增高而提高;低P(P60)水平下石优20植株干重较大,在高P(P180)水平下济麦22则植株干重较大。两小麦品种各生育时期植株P含量均以高P处理下较高,且石优20高于济麦22。随施P水平的增高,小麦植株P累积量增多, P累积速率增大,以开花至成熟期P累积速率较高,且施P水平对P累积速率有正向调控作用。成熟期,植株各器官的干重、P累积量和P分配比例均以籽粒最高,茎秆和叶鞘及叶片次之,颖壳和穗轴最低;各器官P含量以籽粒最高,茎秆、叶鞘、颖壳和穗轴次之,叶片最低,表明生育后期植株体内P素主要向籽粒转运、积累。低P和中P(P120)处理下,石优20产量显著高于济麦22;高P处理下,石优20的产量较济麦22低。随供P水平的提高,植株花前的P转运量和P转运效率增大,但P贡献率、P利用效率和P肥偏生产力下降。不同品种相比,石优20植株的花前P转运量和营养器官P贡献率与济麦22相近,但石优20的P收获指数、花前P转运效率、P利用效率和P肥偏生产力较济麦22低。研究表明,节水条件下,小麦养分高效品种石优20在低P水平下具有较高P吸收能力和籽粒产量,适当施P可增强济麦22植株生育后期P的吸收、利用能力和高产潜力。
节水条件下供氮水平对冬小麦氮素吸收利用特性的影响
史桂清,倩倩,,,
- , 2018, DOI: 10.7606/j.issn.1009-1041.2018.05.15
Abstract: 为给小麦水氮高效栽培提供依据,以高水肥品种保麦10和抗旱品种石麦22为材料,研究了春季节水条件下高氮(施N 225 kg·hm-2)、低氮(施N 112.5 kg·hm-2)处理的小麦植株氮素吸收利用特性。结果表明,与低氮处理相比,高氮处理下小麦各生育时期的植株氮累积量增多,累积强度增大。小麦成熟期籽粒、茎秆、叶片和颖壳的氮累积量、花前氮转运量和籽粒产量随着施氮水平的提高而增加。高氮处理下,品种间各生育时期、阶段氮累积数量、吸收强度、氮利用特征参数和产量明显差异;低氮处理下,与保麦10相比,石麦22各生育时期、阶段的氮累积量、氮素累积强度、氮收获指数、花前氮转运量、花前氮转运率和氮肥偏生产力均不同程度增高,且差异多达显著水平。这说明小麦对低氮供应的响应特征在品种间存在较大差异。其中,抗旱小麦品种石麦22节水低氮栽培下具有较强的氮素吸收和转运能力,这可能是该类别小麦品种抗旱高产的重要生理基础。
埃洛石-玻纤/聚四氟乙烯复合材料的摩擦磨损热膨胀及力学性能
Friction wear thermal expansion and mechanical properties of halloysite-glass fiber/polytetrafluoroethylene composite

江波,倩倩,朱爱萍,志林
- , 2016, DOI: 10.13801/j.cnki.fhclxb.20151126.003
Abstract: 采用冷压成型烧结工艺制备出玻璃纤维(GF)和埃洛石(HNTs)填充的聚四氟乙烯(PTFE)复合材料。研究了填料类型及不同配比的填料对PTFE复合材料的界面、摩擦学性能、线膨胀系数及力学性能的影响。结果表明:适量填充HNTs可以提升GF/PTFE复合材料的摩擦磨损、热膨胀及力学性能。填充2.0%HNTs时的HNTs-GF/PTFE复合材料比GF/PTFE复合材料的磨损率降低32.7%,高温时HNTs-GF/PTFE复合材料的线膨胀系数(CTE)比纯PTFE降低近2个数量级,断裂伸长率、拉伸强度和弯曲强度分别提高40.0%、2.3%和7.1%。 The polytetrafluoroethylene (PTFE) composite filled with glass fiber (GF) and halloysite (HNTs) were prepared by cold forming and sintering. The effects of the filler type and its matching on the interface, frictional property, linear expansion coefficient and mechanical property of PTFE composites were investigated. The results indicate that filling with HNTs suitably not only increases the friction property of GF/PTFE composites, but also causes the wear, thermal expansion and mechanical properties to increase. The wear rate of the HNTs-GF/PTFE ternary composite filled with 2.0% HNTs is reduced by 32.7% in comparison with GF/PTFE composite. The linear expansion coefficient (CTE) of this HNTs-GF/PTFE composite is reduced by almost 2 orders of magnitude compared with that of pure PTFE during high temperature. The elongation at break, tensile strength and bend strength of HNTs-GF/PTFE are improved by 40.0%, 2.3% and 7.1%, respectively. 江苏省高校重点项目(14KJA430006)
Cn上φ-闭正流的Lelong数
The Lelong Number of a φ-Positive Closed Current on Cn
 [PDF]

王芳,倩倩
Pure Mathematics (PM) , 2016, DOI: 10.12677/PM.2016.62015
Abstract:
本文给出了Cn上φ-闭正流ddφf的Lelong数,这里φ是特殊Lagrangian calibration,f是Lloc1(Cn)中的φ-多次下调和函数。并且我们应用此Lelong数,将单复变中全纯函数的极小模原理进行了推广,给出了此类φ-多次下调和函数的一个下界估计。
In this paper, we give the Lelong number of a φ-positive closed current ddφf , where φ is the special Lagrangian calibration and f is a φ-plurisubharmonic function in Lloc1(Cn)?. Using that Lelong number, we generalize the minimum modulus principle for the holomorphic function of one complex variable, and we get an estimate of the low bound for φ-plurisubharmonic functions.
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