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REITs 型公共租赁住房 1

下降敲入期权 1

人工智能 1

价格机制 1

住房特征 1

定价方法 1

定价模型设计 1

实物期权 1

微观经济学 1

数据定价 1

数据权利 1

数据科学 1

无线网络 1

易逝品;策略型消费者;最优定价;Stackelberg博弈 1

租赁 1

租赁期权 1

组合逆向拍卖;服务组合;用户偏好;防策略性;动态定价 1

续租 1

自适应的接纳控制 1

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Nodal, zonal, or uniform electricity pricing: how to deal with network congestion

Martin WEIBELZAHL

《能源前沿(英文)》 2017年 第11卷 第2期   页码 210-232 doi: 10.1007/s11708-017-0460-z

摘要: In this paper, the main contributions to congestion management and electricity pricing, i.e., nodal, zonal, and uniform electricity pricing, are surveyed. The key electricity market concepts are structured and a formal model framework is proposed for electricity transportation, production, and consumption in the context of limited transmission networks and competitive, welfare maximizing electricity markets. In addition, the main results of existing short-run and long-run congestion management studies are explicitly summarized. In particular, the important interconnection between short-run network management approaches and optimal long-run investments in both generation facilities and network lines are highlighted.

关键词: nodal pricing     zonal pricing     uniform pricing     competitive electricity markets     welfare maximization     redispatch     optimization models    

REITs 型公共租赁住房租金定价模型设计

王林秀,曾兰,陶飞

《中国工程科学》 2014年 第16卷 第10期   页码 94-99

摘要:

借鉴国外公共租赁住房租金定价经验,制定租金定价策略;在分析房地产投资信托基金(REITs)型公共租赁住房租金构成的基础上,参照普通住房价格制定的基本理论方法,采用综合性定价方法,构建一种面向低收入人群中的相对高收入人群或暂时性低收入人群、兼顾成本及住房特征的科学性定价模型。该定价模型充分考虑到项目建设的直接成本、入住者的差异性需求及大众投资者投资期望,综合多方需求,为科学合理制定租金提供依据。

关键词: REITs 型公共租赁住房     住房特征     定价方法     定价模型设计    

Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China

Guo LIU, Kunhui YE

《工程管理前沿(英文)》 2019年 第6卷 第3期   页码 327-335 doi: 10.1007/s42524-019-0051-2

摘要: The arrival of the high-speed rail (HSR) era has accelerated the pace of urban development, but its broad socioeconomic impact remains subject to intense debates. This research aims to propose a model for measuring the impact of HSR operation on HSR stations and the surrounding areas, which this research call the HSR-based nodal zone (HNZ). The proposed model is composed of two variables (i.e., transportation situation and vitality) and three subsystems (i.e., economic, societal, and environmental). Data were collected in China through questionnaire survey. Results indicate that the effects of HSR operation on HNZ are multidimensional, transportation vitality has an intermediary role in the effects, and the effects on the physical environment are negative. This study presents an early examination of the impact of HSR operation on the HSR stations and relevant areas and contributes new evidence to academic debates on the contribution of HSR to urban development. Accordingly, urban development policies should be built on the mechanism of HSR in driving the growth of HNZ.

关键词: high-speed rail     nodal zone     interactive effects     sustainable urbanization     China    

Achieving desired nodal lines in freely vibrating structures via material-field series-expansion topology

《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0758-y

摘要: Accurately controlling the nodal lines of vibrating structures with topology optimization is a highly challenging task. The major difficulties in this type of problem include a large number of design variables, the highly nonlinear and multi-peak characteristics of iteration, and the changeable orders of eigenmodes. In this study, an effective material-field series-expansion (MFSE)-based topology optimization design strategy for precisely controlling nodal lines is proposed. Here, two typical optimization targets are established: (1) minimizing the difference between structural nodal lines and their desired positions, and (2) keeping the position of nodal lines within the specified range while optimizing certain dynamic performance. To solve this complex optimization problem, the structural topology of structures is first represented by a few design variables on the basis of the MFSE model. Then, the problems are effectively solved using a sequence Kriging-based optimization algorithm without requiring design sensitivity analysis. The proposed design strategy inherently circumvents various numerical difficulties and can effectively obtain the desired vibration modes and nodal lines. Numerical examples are provided to validate the proposed topology optimization models and the corresponding solution strategy.

关键词: nodal line     topology optimization     structural dynamics design     material-field series-expansion    

基于策略型消费者的易逝品最优定价研究

陈晓红,易国栋,成璐璐

《中国工程科学》 2015年 第17卷 第1期   页码 120-128

摘要:

随着信息获取变得越来越方便快捷,消费者策略行为在日常生活中变得越来越普遍。同时,产品的易腐蚀性使得时间敏感的消费者的选择更复杂。本文研究存在策略型消费者的易腐蚀性产品最优定价问题。垄断厂商在一定时期内销售有限个产品,消费者根据效用最大化原则选择自身的最优购买时机。本文分为不补充库存和补充库存两种情形。研究表明,厂商与消费者之间存在博弈均衡,厂商公布定价策略后,存在最优的阈值函数划分消费者结构。消费者的策略行为对厂商利润有重大影响,厂商可以根据市场需求状况和消费者时间敏感程度通过适当的库存和价格设定来减少消费者策略行为带来的损失。补充库存只有在市场需求较大的时候才优于不补充库存情形。

关键词: 易逝品;策略型消费者;最优定价;Stackelberg博弈    

Improved local control without elective nodal radiotherapy in patients with unresectable NSCLC treated

YANG Kunyu, LIU Li, ZHANG Tao, WU Gang, CAO Fengjun, WANG Jianhua

《医学前沿(英文)》 2007年 第1卷 第4期   页码 381-385 doi: 10.1007/s11684-007-0074-7

摘要: To investigate the influence of prophylactic elective nodal irradiation on the therapeutic results of definitive radiotherapy for patients with stage IIIA or stage IIIB unresectable non-small-cell lung cancer, 55 patients with clinically inoperable advanced non-small-cell lung cancer were studied. After four cycles of induction chemotherapy, the patients were divided into two groups at random. In one group, the elective nodal irradiation was included in clinical tumor volume (CTV) of definitive radiotherapy (ENI group); and in the other group, elective nodal irradiation was not included in CTV (non-ENI group). For the patients in the ENI group, the mean prescription dose for gross tumor volumes was 58.4 Gy, while for the patients in the non-ENI group, it was 65.8 Gy (<0.05). The responsive rates were 45.8% and 74.0% (<0.05), and the rate of the elective nodal failure (ENF) was 4.2% and 11.1%, respectively. Kaplan-Meier analysis showed that the mean local-progression-free survival time was 11.0 and 15.0 months, and one-year local-failure rates were 51.9% and 24.5% (<0.05). The median overall survival time was 13.0 and 15.0 months, respectively ( = 0.084). The one-year survival rates were 55.7% and 72.5%, and two-year survival rates were 0% and 19.9%. There was no significant difference in the occurrences of radiation-associated complications between the two groups. Our results showed that omitting elective nodal irradiation did not result in a high incidence of elective nodal failure. On the contrary, it decreased local failure by increasing prescription doses to the primary diseases and lymphadenopaphy, and thereby it may further prolong the patients survival.

关键词: significant difference     irradiation     unresectable non-small-cell     induction chemotherapy     influence    

基于价格机制的无线网自适应接纳控制算法

张雪

《中国工程科学》 2006年 第8卷 第4期   页码 32-38

摘要:

为了有效地控制对无线网资源的使用,针对自适应的多媒体应用带宽可以动态调整的特点以及价格对用户行为的影响,提出一种与价格机制相结合的自适应的接纳控制算法,该算法适合于无线网中具有多服务类、多优先级服务的情况,并根据网络当前状况动态地调整价格以缓解拥塞问题。该价格机制力求在有效性和易用性之间做出权衡。最后与未结合价格机制的自适应接纳控制算法进行性能对比表明,将价格机制与接纳控制结合起来,可以很大程度上改善无线网的性能。

关键词: 无线网络     自适应的接纳控制     微观经济学     价格机制     连接级QoS    

Pricing and production strategies in remanufacturing from the perspectives of supply chain: Review and

《工程管理前沿(英文)》 doi: 10.1007/s42524-023-0251-7

摘要: Remanufacturing is widely recognized as beneficial to the environment and a circular economy. However, remanufacturing is more complex than traditional manufacturing due to the effects of government policy, uncertainty of consumer preferences, competition and cooperation among firms, and so on. These factors motivate academics to optimize remanufacturing outcomes, especially for product pricing and production. This study reviews the published literature on pricing and production strategies in remanufacturing from four perspectives of supply chain, namely, government policy, consumer characteristics, relationships among firms, and supply chain structures. Review results can benefit scholars/practitioners in the future by highlighting the challenges and opportunities in remanufacturing strategies.

关键词: remanufacturing     reverse and closed-loop supply chain     circular economy    

面向数据权利、数据定价和隐私计算的数据驱动学习 Review

徐基珉, 洪暖欣, 许哲宁, 赵洲, 吴超, 况琨, 王嘉平, 朱明杰, 周靖人, 任奎, 杨小虎, 卢策吾, 裴健, 沈向洋

《工程(英文)》 2023年 第25卷 第6期   页码 66-76 doi: 10.1016/j.eng.2022.12.008

摘要:

近年来,数据已成为数字经济中最重要的生产要素之一。与传统生产要素不同,数据的数字化性质使其难以合同和交易。因此,建立一个高效和标准的数据交易市场体系将有利于降低成本,提高行业各方的生产力。尽管许多研究致力于数据法规和其他数据交易问题,如隐私和定价,但很少有工作对机器学习和数据科学领域的这些研究进行全面回顾。为了提供对这个主题的完整和最新的理解,本文涵盖了数据交易过程中的三个关键问题:数据权利、数据定价和隐私计算。通过厘清这些主题之间的关系,本文提供了一个数据生态系统的全貌,其中数据由个人、研究机构和政府等数据主体生成,而数据处理者出于创新或运营目的获取数据,并通过适当的定价机制根据数据主体各自的所有权分配收益。为了使人工智能(AI)能够长期有益于人类社会的发展,人工智能算法需要通过数据保护法规(即隐私保护法规)进行评估,以帮助构建日常生活中值得信赖的人工智能系统。

关键词: 数据科学     人工智能     数据权利     数据定价     隐私计算    

下降敲入续租期权定价研究

吴云,何建敏

《中国工程科学》 2004年 第6卷 第12期   页码 47-50

摘要:

阐述了现代租赁的基本内涵和实物期权的基本原理,提出了下降敲入续租期权定价模型及其定价求解,最后给出了算例分析。

关键词: 租赁     续租     租赁期权     实物期权     下降敲入期权    

A three-dimensional two-level gradient smoothing meshfree method for rainfall induced landslide simulations

Dongdong WANG, Jiarui WANG, Junchao WU, Junjun DENG, Ming SUN

《结构与土木工程前沿(英文)》 2019年 第13卷 第2期   页码 337-352 doi: 10.1007/s11709-018-0467-5

摘要: A three-dimensional two-level gradient smoothing meshfree method is presented for rainfall induced landslide simulations. The two-level gradient smoothing for meshfree shape function is elaborated in the three-dimensional Lagrangian setting with detailed implementation procedure. It is shown that due to the successive gradient smoothing operation without the requirement of derivative computation in the present formulation, the two-level smoothed gradient of meshfree shape function is capable of achieving a given influence domain more efficiently than the standard gradient of meshfree shape function. Subsequently, the two-level smoothed gradient of meshfree shape function is employed to discretize the weak form of coupled rainfall seepage and soil motion equations in a nodal integration format, as provides an efficient three-dimensional regularized meshfree formulation for large deformation rainfall induced landslide simulations. The exponential damage and pressure dependent plasticity relationships are utilized to describe the failure evolution in landslides. The plastic response of soil is characterized by the true effective stress measure, which is updated according to the rotationally neutralized objective integration algorithm. The effectiveness of the present three-dimensional two-level gradient smoothing meshfree method is demonstrated through numerical examples.

关键词: meshfree method     landslide     rainfall     three-dimensional two-level gradient smoothing     nodal integration    

Impact of FACTS devices on exercising market power in deregulated electricity market

Shanmugam PRABHAKAR KARTHIKEYAN, I. JACOB RAGLEND, D. P. KOTHARI

《能源前沿(英文)》 2013年 第7卷 第4期   页码 448-455 doi: 10.1007/s11708-013-0262-x

摘要: In power system studies, congestion in transmission lines and utilization of flexible alternating current transmission system (FACTS) devices are closely associated. These devices are very important due to their role in power delivery system enhancement. It is to be noted that the generation companies can exercise their market power which depends on the line flows, line constraints, generators’ location and its share to the individual loads. This issue cannot be overlooked as it creates monopoliness which is against the deregulated market policy. The objective of this paper is to study the impact of market power when FACTS devices like thyristor controlled switching capacitor (TCSC) and thyristor controlled phase angle regulator (TCPAR) are used under steady state operation. The market power is determined using nodal must-run share (NMRS) index for the standard IEEE 14-bus system with and without the above FACTS devices and the results obtained are compared. All the above simulations are conducted in a MATLAB 7.9-R2009b environment.

关键词: flexible alternating current transmission system (FACTS)     thyristor controlled switching capacitor (TCSC)     thyristor controlled phase angle regulator (TCPAR)     market power     must-run generation (MRG)     nodal must-run share (NMRS)    

考虑用户偏好的服务组合防策略拍卖机制

夏瑶,黄志球

《信息与电子工程前沿(英文)》 2021年 第22卷 第2期   页码 141-286 doi: 10.1631/FITEE.1900726

摘要: 服务组合是一种基于服务成本和服务质量(QoS)将现有原子服务组合为增值服务的有效方法。为满足用户的多样化需求,提供基于QoS的定价服务,提出一种基于用户偏好的服务组合拍卖机制,该机制具有防策略性,有利于根据用户偏好选择服务,动态确定服务价格。本文证明,所提出的拍卖机制达到了期望的性质,包括真实性和个体合理性。此外,提出一种拍卖算法来实现拍卖机制,并在真实数据基础上进行大量实验。结果表明,所提出的拍卖机制不仅达到预期效果,而且帮助用户找到满意的服务组合方案。

关键词: 组合逆向拍卖;服务组合;用户偏好;防策略性;动态定价    

标题 作者 时间 类型 操作

Nodal, zonal, or uniform electricity pricing: how to deal with network congestion

Martin WEIBELZAHL

期刊论文

REITs 型公共租赁住房租金定价模型设计

王林秀,曾兰,陶飞

期刊论文

Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China

Guo LIU, Kunhui YE

期刊论文

Achieving desired nodal lines in freely vibrating structures via material-field series-expansion topology

期刊论文

基于策略型消费者的易逝品最优定价研究

陈晓红,易国栋,成璐璐

期刊论文

Improved local control without elective nodal radiotherapy in patients with unresectable NSCLC treated

YANG Kunyu, LIU Li, ZHANG Tao, WU Gang, CAO Fengjun, WANG Jianhua

期刊论文

基于价格机制的无线网自适应接纳控制算法

张雪

期刊论文

Pricing and production strategies in remanufacturing from the perspectives of supply chain: Review and

期刊论文

面向数据权利、数据定价和隐私计算的数据驱动学习

徐基珉, 洪暖欣, 许哲宁, 赵洲, 吴超, 况琨, 王嘉平, 朱明杰, 周靖人, 任奎, 杨小虎, 卢策吾, 裴健, 沈向洋

期刊论文

下降敲入续租期权定价研究

吴云,何建敏

期刊论文

A three-dimensional two-level gradient smoothing meshfree method for rainfall induced landslide simulations

Dongdong WANG, Jiarui WANG, Junchao WU, Junjun DENG, Ming SUN

期刊论文

Impact of FACTS devices on exercising market power in deregulated electricity market

Shanmugam PRABHAKAR KARTHIKEYAN, I. JACOB RAGLEND, D. P. KOTHARI

期刊论文

考虑用户偏好的服务组合防策略拍卖机制

夏瑶,黄志球

期刊论文