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Big Data Knowledge Pricing Schemes for Knowledge recipient Firms

Computers, Materials & Continua 2021年第12期69卷 3275-3287页

作者： Chuanrong Wu Haotian Cui Zhi Lu Xiaoming Yang Mark e.McMurtrey School of economy and Management Changsha University of Science&TechnologyChangshaChina Peter B.Gustavson School of Business University of VictoriaCanada College of Business Administration University of NebraskaOmaha68182USA College of Business University of Central Arkansas72035USA

Big data knowledge,such as customer demands and consumer preferences,is among the crucial external knowledge that firms need for new product development in the big data *** research has focused on the profit of big data knowledge providers rather than the profit and pricing schemes of knowledge *** research addresses this theoretical gap and uses theoretical and numerical analysis to compare the profitability of two pricing schemes commonly used by knowledge recipients:subscription pricing and pay-per-use *** find that:(1)the subscription price of big data knowledge has no effect on the optimal time of knowledge transaction in the same pricing scheme,but the usage ratio of the big data knowledge affects the optimal time of knowledge transaction,and the smaller the usage ratio of big data knowledge the earlier the big data knowledge transaction conducts;(2)big data knowledge with a higher update rate can bring greater profits to the firm both in subscription pricing scheme and pay-per-use pricing scheme;(3)a knowledge recipient will choose the knowledge that can bring a higher market share growth rate regardless of what price scheme it adopts,and firms can choose more efficient knowledge in the pay-per-use pricing scheme by adjusting the usage ratio of knowledge usage according to their economic *** model and findings in this paper can help knowledge recipient firms select optimal pricing method and enhance future new product development performance.

关键词： Big data knowledge knowledge transfer subscription pricing pay-per-use pricing new product development performance

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CSI and CSI7 Current Source Inverters for Modular Transformerless PV Inverters

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Chinese Journal of electrical engineering 2019年第2期5卷 32-42页

作者： e.Lorenzani G.Migliazza F.Immovilli G.Buticchi DISMI-Department of Science and Methods for engineering University of Modena and Reggio EmiliaReggio Emilia Italy Key Laboratory of More electric Aircraft Technology of Zhejiang Province University of Nottingham Ningbo ChinaNingbo 315100China

Current source inverter(CSI)is a class of power electronic converters that,thanks to the inherent boost capability and ease of control,is investigated for grid-tied photovoltaic power conversion *** CSI and CSI7 topologies are here analyzed and compared with two kind of space vector modulation strategies mainly in terms of ground leakage current both in simulations and ***,THD of the injected grid current and the computation of conduction and switching semiconductor power losses are also carried out in numerical *** topology comparison is carried out with the use of a different number of PV modules,to analyze the robustness of the topologies to different size of the PV *** and experimental results show that the CSI7 topology,with respect to conventional CSI,allows to strongly reduce ground leakage current,phase current THD and semicondutor power losses,at the price of an additional power device.

关键词： Current source inverter photo-voltaic power systems ground leakage current renewable energy sources

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Propagating Figured Wood in Black Walnut

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Open Journal of Forestry 2015年第5期5卷 518-525页

作者： James r. McKenna Wayne A. Geyer Keith e. Woeste Daniel L. Cassens USDA-Forest Service Northern Research Station West Lafayette USA Kansas State University Manhattan KS USA Purdue University West Lafayette IN USA

Figured black walnut lumber is a specialty wood product that commands a high price for manufacturing fine furniture and interior paneling. Two common figured grain patterns occur in walnut;they are known as “fiddle-back” or “curly” grain, depending on the number of horizontal lines visible in the grain of the finished wood. The occurrence of figured walnut in nature is rare and unpredictable. Trees that have consistent figured patterns throughout the log are of exceptional value. Conversely, trees with partial or spotty figured patterns are considered defective and are reduced in value. Conventional breeding of seedlings, or cloning figured trees by grafting, are possible methods to propagate figured wood in walnut. The value of such material, however, will depend on figure being expressed predictably. For breeding to succeed, the trait of interest must be genetic and heritable. For clonal propagation to be effective, the trait must be reproduced true-to-type. In this study, we evaluate the grain pattern of both grafted and seedling walnut from several highly figured wild selections. Logs from grafted trees of three clones propagated in the 1970s in Kansas were evaluated. Only one log from one clone showed some figure in its lumber. Ten-year-old seedlings from the figured walnut clone “Lamb” were grown and cut in Indiana and evaluated for figured grain, and none showed any sign of figured grain developing. Our conclusion is that figured grain in black walnut does not propagate true-to-type through grafting or by growing open-pollinated seed. Although evidence of some genetic control of figure was found, environmental and other factors appear to play a greater role.

关键词： Juglans nigra Figured Wood Forestry Breeding True-to-Type Grafting Clonal Forestry

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Opportunities to search for extraterrestrial intelligence with the FAST

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research in Astronomy and Astrophysics 2020年第5期20卷 193-204页

作者： Di Li Vishal Gajjar Pei Wang Andrew Siemion Zhi-Song Zhang Hai-Yan Zhang You-Ling Yue Yan Zhu Cheng-Jin Jin Shi-Yu Li Sabrina Berger Bryan Brzycki Jeff Cobb Steve Croft Daniel Czech David DeBoer Julia DeMarines Jamie Drew J.emilio enriquez Nectaria Gizani eric J.Korpela Howard Isaacson Matthew Lebofsky Brian Lacki David H.e.MacMahon Morgan Nanez Chen-Hui Niu Xin Pei Danny C.price Dan Werthimer Pete Worden Yunfan Gerry Zhang Tong-Jie Zhang FAST Collaboration CAS Key Laboratory of FAST National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Department of Astronomy University of California BerkeleyBerkeley CA 94720USA SeTI Institute Mountain ViewCA 94043USA Department of Astrophysics/IMAPP Radboud UniversityNijmegenNetherlands University of Malta Institute of Space Sciences and AstronomyMalta Space Sciences Laboratory University of CaliforniaBerkeleyBerkeley CA 94720USA Breakthrough Initiatives NASA Research ParkMoffett Field CA 94043USA Hellenic Open University School of Science&TechnologyParodos AristotelousPerivola PatronGreece University of Southern Queensland QLD 4350Australia Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Centre for Astrophysics&Supercomputing Swinburne University of TechnologyHawthornVIC 3122Australia Department of Astronomy Beijing Normal UniversityBeijing 100875China Institute of Astronomical Science Dezhou UniversityDezhou 253023China

The discovery of ubiquitous habitable extrasolar planets,combined with revolutionary advances in instrumentation and observational capabilities,has ushered in a renaissance in the search for extraterrestrial intelligence(SeTI).Large scale SeTI activities are now underway at numerous international *** Five-hundred-meter Aperture Spherical radio Telescope(FAST)is the largest single-aperture radio telescope in the world,and is well positioned to conduct sensitive searches for radio emission indicative of *** is one of the five key science goals specified in the original FAST project plan.A collaboration with the Breakthrough Listen Initiative was initiated in 2016 with a joint statement signed both by *** Yan,the then director of National Astronomical Observatories,Chinese Academy of Sciences(NAOC),and *** Worden,Chairman of the Breakthrough Prize *** this paper,we highlight some of the unique features of FAST that will allow for novel SeTI *** identify and describe three different signal types indicative of a technological source,namely,narrow band,wide-band artificially dispersed and modulated ***,we propose observations with FAST to achieve sensitivities never before *** nearby exoplanets,such as TeSS targets,FAST will be sensitive to an eIrP of 1.9×1011 W,well within the reach of current human *** the Andromeda Galaxy,FAST will be able to detect any Kardashev type II or more advanced civilization there.

关键词： Search for extraterrestrial Intelligence Five-hundred-meter Aperture Spherical radio Telescope

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福建乡村两种典型桃园管理模式能值分析

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福建农业学报 2020年第1期35卷 111-116页

作者：罗旭辉杜理旺陈华刘岑薇 Gordon Wuchye price 刘朋虎张见明翁伯琦福建省农业科学院农业生态研究所福建福州 350013 福建省农业科学院福建福州 350003 福建省红壤山地农业生态过程重点试验室福建福州 350013 Department of engineering Faculty of AgricultureDalhousie University B2N 5E3 Canada 国家菌草工程技术研究中心福建福州 350002 武夷学院生态与资源工程学院福建武夷山 353400

【目的】福建宁德市山区水蜜桃产业对乡村产业振兴具有重要意义,但也面临生态保护与高效生产之间的矛盾。为寻求高效、生态的桃园绿色发展路径,深入理解生草管理模式对桃园生态经济系统的影响机制,本研究以村为研究尺度,科学评价典型桃... 详细信息

【目的】福建宁德市山区水蜜桃产业对乡村产业振兴具有重要意义,但也面临生态保护与高效生产之间的矛盾。为寻求高效、生态的桃园绿色发展路径,深入理解生草管理模式对桃园生态经济系统的影响机制,本研究以村为研究尺度,科学评价典型桃园的生态经济效益。【方法】选择古田县赖墩村(桃园生草)、福安市虎头村(桃园清耕),应用能值法综合比较2017-2018年两种栽培模式的桃园生态系统能值总投入、能值自给率、能值投资率、净能值产出率、环境负载率、可持续发展指数、能值反馈率。【结果】2017-2018年赖墩村和虎头村桃园的能值总投入分别为1.16×10^16、2.36×10^16 sej·hm^-2,能值自给率为0.166、0.102,能值投资率为5.030、8.823,净能值产出率为1.199、 1.113,环境负载率为0.425、 0.410,可持续发展指数2.822、 2.716,能值反馈率为0.072、0.026。虎头村桃园同步投入大量劳动力、有机肥和化肥保持较低的环境负载率。赖墩村桃园通过生草与就近施用沼液,提高能值反馈率,化肥能值投入减少57.2%,万元产值的能值消耗节约46.32%。【结论】桃园生草配施沼液是值得拓展与集成推广的高效低耗的绿色生产模式。

关键词：果园生草能值生态经济系统评价

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乳腺MrI上病灶的形态影响靶向超声评估的一致性

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国际医学放射学杂志 2015年第4期 389-390页

作者： L.Hollowell e.price V.Arasu D.Wisner N.Hylton B.Joe 董龙春 UCSF San Francisco CA USA

摘要目的乳腺MrI检查发现的可疑病变通常采用靶向超声进行最初评估。然而检查流程多种多样。形态学(肿物样、非肿物样强化或局灶性强化)一致性检测的数据有助于

关键词：乳腺乳房病灶肿物可疑病变靶向 MrI

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亚洲东部三国的养老保障政策:评估名义账户制的潜在效用

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社会保障研究(北京) 2011年第2期 1-13页

作者： John B.Williamson Meghan price Ce Shen 董尚雯美国波士顿大学社会学系美国波士顿L.e.K.咨询公司 3. 美国波士顿大学社会工作研究生院 4. 中国人民大学劳动人事学院

很多发达国家以及世界各地的工业化国家的人口都正在迅速老龄化。在东亚,养老抚养比率的增加速度尤为迅速,并且是许多国家的专家研究的一个主要影响因素,旨在改革其现有的公共退休金计划来使他们能更好地面对所面临的人口和经济方面的... 详细信息

很多发达国家以及世界各地的工业化国家的人口都正在迅速老龄化。在东亚,养老抚养比率的增加速度尤为迅速,并且是许多国家的专家研究的一个主要影响因素,旨在改革其现有的公共退休金计划来使他们能更好地面对所面临的人口和经济方面的压力。在这篇文章中,我们带着疑问,名义账户制(以下简称NDC)是否有潜在的实用性,以及是否值得我们给予亚洲东部三国——韩国、中国、新加坡在NDC讨论中更多的关注。这些国家之所以被选中,是因为他们提供了一个环境,在这个环境中,可以对NDC模式的利弊与现在在亚洲东部应用或者执行更广泛的几种可替代模式相比较。我们疑惑对NDC模式的使用可以将目前存在的几种模式的哪个局限性充分显露出来。我们得出这样的结论:NDC模式能给中国提供更多的效用,并且为新加坡提供的效用是最少的。

关键词：养老保障政策 NDC计划公积金计划社会养老金资助直流计划中国韩国新加坡

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Service Pricing Decision of e-Commerce Supply Chain Members Considering Diseconomies of Scale and Network externalities

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Journal of Systems Science and Information 2022年第5期10卷 425-444页

作者： Yuyan WANG Ying CUI Liang SHeN T.e.C CHeNG School of Management Science and engineering Shandong University of Finance and EconomicsJinan250014China School of Public Finance and Taxation Shandong University of Finance and EconomicsJinan 250014China PolyU Business School The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077China

Considering diseconomies of scale and network externalities in the e-commerce supply chain(eCSC),we construct an e-platform-led benchmark model and derive the optimal ***,the model is extended by endogenizing the impact of service level on network *** service investment that includes fixed and variable investments,the model is further *** the extended models with the benchmark model,we found the following *** the e-platform dominates the eCSC,its profit is lower than the *** corporate profits,service level,and price increase with network *** in diseconomies of scale decrease the corporate profits and service level,but increase the price.A high-quality service combined with network externalities can achieve synergy and improve the e-platform’s economies of scale,further generating a higher *** network externalities promotes the fair profit distributionin eCSC and achieves stable development.

关键词： e-commerce supply chain diseconomies of scale network externalities service level

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Operational optimization of a building-level integrated energy system considering additional potential benefits of energy storage

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Protection and Control of Modern Power Systems 2021年第1期6卷 55-64页

作者： Sai Liu Cheng Zhou Haomin Guo Qingxin Shi Tiancheng e.Song Ian Schomer Yu Liu Maintenance Branch Company State Grid Jiangsu Electric Power Co.Ltd.Nanjing211102Jiangsu ProvinceChina Kunshan Power Supply Branch Company State Grid Jiangsu Electric Power Co.Ltd.Kunshan215300Jiangsu ProvinceChina Xiamen Power Supply Company State Grid Fujian Electric Power Co.Ltd.Xiamen361004Fujian ProvinceChina enliten Lab University of TennesseeKnoxvilleTN37996USA School of electrical engineering Southeast UniversityNanjing210096Jiangsu ProvinceChina

As a key component of an integrated energy system(IeS),energy storage can effectively alleviate the problem of the times between energy production and *** the benefits of energy storage can improve the competitiveness of multi-energy *** paper proposes a method for day-ahead operation optimization of a building-level integrated energy system(BIeS)considering additional potential benefits of energy *** on the characteristics of peak-shaving and valley-filling of energy storage,and further consideration of the changes in the system’s load and real-time electricity price,a model of additional potential benefits of energy storage is *** at the lowest total operating cost,a bi-level optimal operational model for day-ahead operation of BIeS is developed.A case analysis of different dispatch strategies verifies that the addition of the proposed battery scheduling strategy improves economic *** results demonstrate that the model can exploit energy storage’s potential,further optimize the power output of BIeS and reduce the economic cost.

关键词： Building-level integrated energy system energy storage Additional potential benefits Bi-level optimization

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A refueling Scheme Optimization Model for the Voyage Charter with Fuel price Fluctuation and Ship Deployment Consideration

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Journal of Systems Science and Information 2017年第3期8卷 267-278页

作者： Peng JIA Weilun ZHANG Wenhao e Xueshan SUN School of economics and Management University of Chinese Academy of Sciences Collaborative Innovation Center for Transport Studies Dalian Maritime University Transportation Management College Dalian Maritime University Zhonghuan Information College Tianjin University of Technology

Due to the long operation cycle of maritime transportation and frequent fluctuations of the bunker fuel price, the refueling expenditure of a chartered ship at different time or ports of call make significant difference. From the perspective of shipping company, an optimal set of refueling schemes for a ship fleet operating on different voyage charter routes is an important decision. To address this issue, this paper presents an approach to optimize the refueling scheme and the ship deployment simultaneously with considering the trend of fuel price fluctuations. Firstly, an ArMA model is applied to forecast a time serials of the fuel prices. Then a mixed-integer nonlinear programming model is proposed to maximize total operating profit of the shipping company. Finally, a case study on a charter company with three bulk carriers and three voyage charter routes is conducted. The results show that the optimal solution saves the cost of 437,900 USD compared with the traditional refueling scheme, and verify the rationality and validity of the model.

关键词： voyage charter refueling scheme optimization ship deployment bunker fuel price prediction

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