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Teachers’Perceptions of Large-Scale Online Teaching as an Epidemic Prevention and Control Strategy in China

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ECNU Review of Education 2020年第4期3卷 739-744页

作者： Xiaozhe Yang Faculty of Education Institute of Curriculum and InstructionEast China Normal University3663 North Zhongshan RoadShanghaiChina

The sudden outbreak of the novel coronavirus disease(COVID-19)in China resulted in the sudden closure of schools,interrupting teaching *** prevent the virus from spreading across campuses and ensure the safety of teachers and students,China’s Ministry of Education(MOE)closed all educational ***,the MOE mandated that schools of all types and at all levels“retain the education program despite the suspension of classes”by adapting solutions to local conditions.

关键词： COVID-19 large scale online education teachers in China

From"Extensive"to"Connotative"Development:Modernization of Chinese-Style Education

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ECNU Review of Education 2024年第1期7卷 144-154页

作者：杨九诠 institute of curriculum&instruction East China Normal University

●The transformation of China's education reform from extensive to connotative development involved a shift from characteristically exogenous and late development to endogenous and spontaneous development.●The mechanism behind the shift from rationalism to universalism has resulted in tension between extension and intension in the process of modernization.●Reflexive modernity has always existed in historical experience and situations,strengthening the appeal of intension to the right of defining.●In terms of the scale effect,the expansion of higher education enrollment made historically significant contributions to the modernization of education in China;however,it also had several disadvantages.●China's educational modemization invariably requires solving the problem of large-class teaching and promoting small-class teaching in the process of shifting from extensive to connotative development.

关键词： Connotative development extensive development globalization higher education enrollment expansion intension small-class teaching universalism

Extending the Comparisons of Shadow Education and Its Nexus With Schooling

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ECNU Review of Education 2024年第1期7卷 3-11页

作者：张薇 institute of curriculum&instruction East China Normal University

In November 2021,the Centre for International Research in Supplementary Tutoring(CIRIST),which operates under the umbrella of the institute of curriculum and instruction(ICI)at East China Normal University(ECNU),hosted a major international *** theme was"Comparing curriculum and instruction Inside and Outside Schools:Policies and Practices."In China,outside-school instruction,and in particular private supplementary tutoring organized by commercial companies,was much in the public eye a result of its rapid growth during the previous three decades(Zhang&Bray,2021)and a July 2021 national-government policy aiming at sharp contraction of the sector(Central Committee and the General Office of the State Council of the People's Republic of China,2021).The conference operated in hybrid offline and online *** attendance was still restricted by the pandemic,though 150 participants were still able to meet on the ECNU *** dramatically,the online provision attracted over 200,000 viewers of live and recorded *** addition,the event received extensive media coverage,through which core messages were delivered to over a million *** of this coverage was in Chinese,though some sessions and commentaries were in English.

关键词： Shadow companies outside

The Fading away of“Asymmetry”:Electronic Media and the School’s Legitimacy Crisis

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Contemporary Social Sciences 2021年第1期6卷 90-103页

作者： Gao Desheng Wang Di institute of curriculum and instruction East China Normal University

The“maturity gap”between generations is an objective fact that can only be narrowed through *** asymmetry between generations is the anthropological base for education,and thus school education originated when this asymmetry *** print media protects this asymmetry,whereas the electronic media decrease the asymmetry,causing it to quickly fade ***,when the asymmetry between generations fades away,the legitimacy and attraction of school education will be reduced,which is the primary reason that modern schools encounter so many *** the age of electronic media,schools must search for a new legitimate basis and transform into a“learning community.”

关键词： maturity gap asymmetry print media electronic media legitimacy crisis

Trends of Communication Processors

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China Communications 2016年第1期13卷 1-16页

作者： LIU Dake CAI Zhaoyun WANG Wei Lab of Application Specific instruction-Set Processors Beijing Institute of Technology

Processors have been playing important roles in both communication infrastructure systems and *** this paper,both application specific and general purpose processors for communications are discussed including the roles,the history,the current situations,and the *** trend is that ASIPs(Application Specific instruction-set Processors) are taking over ASICs(Application Specific Integrated Circuits) because of the increasing needs both on performance and compatibility of *** trend opened opportunities for researchers crossing the boundary between communications and computer *** trend is the serverlization,i.e.,more infrastructure equipments are replaced by *** trend opened opportunities for researchers working towards high performance computing for communication,such as research on communication algorithm kernels and real time programming methods on servers.

关键词： ASIP baseband processor network processor application processor server processor

Energy Estimation and Optimization Platform for 4G and the Future Base Station System Early-Stage Design

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China Communications 2017年第4期14卷 47-64页

作者： Wei Wang Dake Liu Ying Zhang Chen Gong Lab of Application Specific instruction-set Processors Beijing Institute of Technology

There are already several power models to estimate the power consumption of base stations at system level. However, there is so far no model that can predict power consumption of the future base station designs based on algorithms and hardware selections with insufficient physical information. We present such an energy model for typical base stations. This model can help designers in estimating, evaluating and optimizing energy/power consumption of candidate designs in early design stages. The proposed model is verified by an LTE extreme scenario. The estimated results show that digital front-end, channel equalization and channel decoding are three major power greedy modules(consuming 39.4%, 16.3%, 13.4%) in a digital baseband subsystem. The power estimation error of the proposed power amplifier(PA) power model is 3.5%(macro cell). The major contribution of this paper is that the proposed models can rapidly estimate energy/power consumption of 4G and the future base stations(such as 5G) in early design stages with well acceptable precision, even without sufficient implementation information.

关键词： system level energy modeling high level energy optimization base stations baseband IC

Multilevel Power Modeling of Base Station and Its ICs

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China Communications 2015年第6期12卷 22-33页

作者： WANG Wei LI Xiaoyang LIU Dake CAI Zhaoyun GONG Chen Lab of Application Specific instruction-set Processors Beijing Institute of Technology

A new power estimation method is proposed for base station(BS) in this *** on this method,a software platform for power estimation is *** proposed method models power consumption on different abstraction levels by splitting a typical base station into several basic components at different levels in the view of embedded system *** particular,our focus is on baseband IC(Integrate Circuit) due to it's the dominant power consumer in small *** power model is based on arithmetic computing costs of selected *** computing and storage costs are calibrated using algorithm complexity,hardware architecture,activity ratio,silicon technology,and overheads on all *** architecture and IC technology are *** model enables power comparison of different types of base stations configured with different baseband algorithms,micro architectures,and *** model also supports cellular operators in power estimation of different deployment strategies and transmission *** model is verified by comparing power consumption with a real LTE base *** exposing more configuration freedoms,the platform can be used for power estimation of current and future base stations.

关键词： baseband IC power consumption power modeling base station 5G

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Baseband ASIP Design for SDR

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China Communications 2015年第7期12卷 60-72页

作者： LIU Dake Lab of Application Specific instruction-set Processors Beijing Institute of Technology

Baseband ASIP designs for handsets are discussed based on the author's R&D backgrounds. Algorithms for 4G, 3G, and WLAN are analyzed and selected for implementation based on the trade off of cost and performance with power consumption in mind. A SDR ASIP baseband system architecture is proposed for 4G and 3G mobile handsets. Function partitions for heterogeneous symbol processors are introduced to get higher performance over cost. Three structures for DFE, FFE, and Matrix symbol ASIP are proposed. The concept of bit parallel processor is introduced. Challenges of baseband processors for UDN of 5G were briefly introduced. Conclusions on ASIP architecture and system design are given for different baseband processors on different products.

关键词： baseband ASIP architecture selection SDR

Shadow Education in the Nordic Countries:An Emerging Phenomenon in Comparative Perspective

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ECNU Review of Education 2021年第3期4卷 431-441页

作者： Søren Christensen Wei Zhang Aarhus University The institute of curriculum and instruction East China Normal University

Since the turn of the century,expanding attention around the world has focused on the so-called shadow education system of private supplementary *** first global comparative study was authored by Bray(1999)and was titled The Shadow Education System:Private Supplementary Tutoring and its Implications for *** employed the shadow metaphor for four reasons(p.17).

关键词： metaphor Shadow has