Results 31 to 40 of about 30,525 (149)

Flexibility of connection impact the power of heterogeneous FPGA(连接复杂度对非对称FPGA功耗的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
FPGA因为开发周期短、使用灵活、价格低廉等优点,在嵌入式系统中被广泛应用.随着开发需求的扩大,嵌入有DSP、MCU等宏模块的非对称FPGA应运而生.本文根据非对称FPGA的结构,研究连接复杂度Fc参数对功耗的影响.在不同Fc参数的非对称FPGA结构下对MCNC电路仿真,实验结果表明输入Fc参数在80%,输出Fc参数在70%时,其功耗最低.与Fc参数100%相比,输入Fc参数在80%时,平均功耗减少25.76%,最高功耗减少29.08%;输出Fc参数在70%时,平均功耗减少27.07%,最高功耗减少43.
XUKe-jun(徐科君)   +1 more
doaj   +1 more source

Designing Integrated Policies for the Twin Transition: Challenges and Tradeoffs

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Democratic governance faces the intertwined imperatives of managing the transformative risks and opportunities of digitalization, particularly stemming from artificial intelligence (AI), while achieving environmental sustainability within planetary boundaries.
Martino Maggetti
wiley   +1 more source

不同维的混沌系统的自适应函数投影同步

open access: yes四川大学学报. 自然科学版, 2014
本文对维数不同并且参数未知的两个不同的混沌系统,通过增补维数的方法研究了两个系统的自适应函数混沌同步和参数识别问题.基于Lyapunov稳定性理论和自适应同步法,为系统设计了合适的自适应同步控制器和未知参数的辨识规则,实现了系统的混沌同步和未知参数的辨识.数值仿真验证了所设计的控制器和参数辨识规则的有效性.
党红刚, 刘晓君, 杨丽新
doaj  

Environmental Justice in the Brazilian Coastal Food Systems: Policies, Institutions, and Knowledges on Small‐Scale Fishers and Energy Development

open access: yesWorld Food Policy, Volume 12, Issue 2, November 2026.
ABSTRACT This study explores environmental justice issues in coastal food systems, focusing on conflicts between small‐scale fisheries and the energy sector due to differing goals in managing food and energy sources. It does so by examining the interdependence between institutions, policies, and different types of knowledge; key elements in building ...
Mateus Henrique Amaral   +6 more
wiley   +1 more source

Large sample properties of nonparametric estimation in time-varying Copula model(时变Copula模型非参数估计的大样本性质)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2012
运用Copula模型研究随机变量间的相关结构,是近年来金融统计分析中的一个热点.在龚金国和史代敏提出时变Copula非参数模型的基础上,利用时间序列的极限理论研究了时变参数估计量的大样本性质,并给出了时变Copula模型的非参数估计算法.研究结果表明,时变Copula非参数模型的时变参数估计量具有一致性和渐近正态性.
GONGJin-guo(龚金国)   +1 more
doaj   +1 more source

Identical Platform, Divergent Publics: Sweden and Finland During the 2022 NATO Crisis

open access: yesPolicy &Internet, Volume 18, Issue 3, September 2026.
ABSTRACT Digital platforms are often theorized as universal drivers of political polarization, yet empirical patterns remain inconsistent across countries. Leveraging the natural‐experiment logic of Sweden's and Finland's simultaneous 2022 NATO applications and the NATO–Turkey diplomatic crisis, this study examines how national political cultures ...
Selcen Ozturkcan
wiley   +1 more source

Can Online Participation Match In‐Person Democratic Engagement? Evidence From a Cross‐National Experiment

open access: yesPolicy &Internet, Volume 18, Issue 3, September 2026.
ABSTRACT Democratic innovations increasingly take place online, yet little is known about how online citizen participation affects perceived legitimacy compared to in‐person formats. This study presents findings from a preregistered vignette experiment conducted in Spain and Switzerland.
Valeria Vuk
wiley   +1 more source

基于坐标系转换的TRV波形包络线与标准值参数计算方法研究

open access: yesGaoya dianqi, 2018
暂态恢复电压(TRV)标准值参数是考核高压交流断路器在大容量试验站进行短路开断试验时的一项重要指标。文中提出了一种基于坐标系转换的TRV波形包络线与标准值参数计算方法,通过对TRV波形数据经过数学运算由笛卡尔坐标系转换到极坐标系下,进一步对极坐标系下的TRV波形数据计算可以得出与TRV波形相切的3条直线(两参数TRV)或4条包直线(四参数TRV)所组成的包络线以及TRV的标准值参数。应用该计算方法所获得TRV标准值参数,为大容量试验站进行短路开断试验时,预期TRV调试时试验回路R、L ...
班建, 高享想, 黄实, 李刚
doaj  

Digital Futures Between Participatory Digital Democracy and Participatory Digital Fascism

open access: yesPolicy &Internet, Volume 18, Issue 3, September 2026.
ABSTRACT This paper explores one of the defining political questions of the twenty‐first century: will digital technologies strengthen democracy or accelerate new forms of authoritarianism and fascism? Against the backdrop of platform capitalism, AI‐driven communication, surveillance infrastructures, disinformation and democratic crisis, the study asks
Christian Fuchs   +2 more
wiley   +1 more source

特殊组合波发生器的研究

open access: yesDianci bileiqi, 2004
对特殊参数的组合波发生器进行研究。首先讨论了波形参数、电路参数、电源利用率等之间的关系并得出有实用参考价值的曲线,根据此曲线,可以方便地确定特殊参数组合波在不同虚拟阻抗下的电路参数;其次,针对有代表性的电路(如10/1000电压波、10/1000电流波以及10/700电压波、10/300电流波等),选取一定虚拟阻抗下的电路参数,并进行仿真,验证了理论计算的正确性。
姚学玲, 陈景亮, 孙伟
doaj  

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