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Decomposition and decoupling analysis of electricity consumption carbon emissions in China

《工程管理前沿（英文）》页码 486-498 doi: 10.1007/s42524-022-0215-3

摘要： Electricity consumption is one of the major contributors to greenhouse gas emissions. In this study, we build a power consumption carbon emission measurement model based on the operating margin factor. We use the decomposition and decoupling technology of logarithmic mean Divisia index method to quantify six effects (emission intensity, power generation structure, consumption electricity intensity, economic scale, population structure, and population scale) and comprehensively reflect the degree of dependence of electricity consumption carbon emissions on China’s economic development and population changes. Moreover, we utilize the decoupling model to analyze the decoupling state between carbon emissions and economic growth and identify corresponding energy efficiency policies. The results of this study provide a new perspective to understand carbon emission reduction potentials in the electricity use of China.

关键词： electricity consumption carbon emission measurement LMDI model decoupling model data driven

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Novel interpretable mechanism of neural networks based on network decoupling method

《工程管理前沿（英文）》 2021年第8卷第4期页码 572-581 doi: 10.1007/s42524-021-0169-x

摘要： The lack of interpretability of the neural network algorithm has become the bottleneck of its wide application. We propose a general mathematical framework, which couples the complex structure of the system with the nonlinear activation function to explore the decoupled dimension reduction method of high-dimensional system and reveal the calculation mechanism of the neural network. We apply our framework to some network models and a real system of the whole neuron map of Caenorhabditis elegans. Result shows that a simple linear mapping relationship exists between network structure and network behavior in the neural network with high-dimensional and nonlinear characteristics. Our simulation and theoretical results fully demonstrate this interesting phenomenon. Our new interpretation mechanism provides not only the potential mathematical calculation principle of neural network but also an effective way to accurately match and predict human brain or animal activities, which can further expand and enrich the interpretable mechanism of artificial neural network in the future.

关键词： neural networks interpretability dynamical behavior network decouple

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A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow

《机械工程前沿（英文）》 2023年第18卷第2期 doi: 10.1007/s11465-023-0747-1

摘要： Capacitive sensors are efficient tools for biophysical force measurement, which is essential for the exploration of cellular behavior. However, attention has been rarely given on the influences of external mechanical and internal electrical interferences on capacitive sensors. In this work, a bionic swallow structure design norm was developed for mechanical decoupling, and the influences of structural parameters on mechanical behavior were fully analyzed and optimized. A bionic feather comb distribution strategy and a portable readout circuit were proposed for eliminating electrostatic interferences. Electrostatic instability was evaluated, and electrostatic decoupling performance was verified on the basis of a novel measurement method utilizing four complementary comb arrays and application-specific integrated circuit readouts. An electrostatic pulling experiment showed that the bionic swallow structure hardly moved by 0.770 nm, and the measurement error was less than 0.009% for the area-variant sensor and 1.118% for the gap-variant sensor, which can be easily compensated in readouts. The proposed sensor also exhibited high resistance against electrostatic rotation, and the resulting measurement error dropped below 0.751%. The rotation interferences were less than 0.330 nm and (1.829 × 10⁻⁷)°, which were 35 times smaller than those of the traditional differential one. Based on the proposed bionic decoupling method, the fabricated sensor exhibited overwhelming capacitive sensitivity values of 7.078 and 1.473 pF/µm for gap-variant and area-variant devices, respectively, which were the highest among the current devices. High immunity to mechanical disturbances was maintained simultaneously, i.e., less than 0.369% and 0.058% of the sensor outputs for the gap-variant and area-variant devices, respectively, indicating its great performance improvements over existing devices and feasibility in ultralow biomedical force measurement.

关键词： micro-electro-mechanical system capacitive sensor bionics operation instability mechanical and electrical decoupling biomedical force measurement

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A novel decoupling approach to an integrated optical-fiber proximity sensor for robots

LIU Guixiong, LI Xiani

《机械工程前沿（英文）》 2007年第2卷第2期页码 164-167 doi: 10.1007/s11465-007-0027-5

摘要： The structure and the working principle of a self-compensational integrated optical-fiber proximity sensor that detects distance and orientation are introduced in this paper. The corresponding decoupling approach to the sensor is presented on the basis of multiscale characteristics. The decoupling process can be divided into two parts: classifying the information on the basis of the multiscale degree and solving the coupling equation via the computational approximation methods with different precisions. Finally, the principle, the physical meaning, and the implementation process of the approach are discussed. They indicate that the proposed approach is real-time and accurate, and can be applied to other similar circumstances.

关键词： multiscale different self-compensational integrated information implementation

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斜阶跃信号激励下耦合RLC互连线时延估计

李鑫,Janet M Wang,唐卫清,吴慧中

《中国工程科学》 2008年第10卷第11期页码 59-64

摘要：

考虑实际电路中激励信号不理想对耦合互连线时延分析的影响，建立了斜阶跃信号激励下的互连线时延模型，提出了一种基于耦合RLC互连线的时延分析方法。该方法对已有的解耦算法进行了改进，将斜阶跃信号激励下的耦合互连线模型在线元分析阶段进行解耦，并结合二阶矩模型及改进的一阶模型对互连线的传递函数进行化简，进而给出耦合互连线的时延估计表达式。实验结果表明，互连线时延估计方法可以对耦合RLC互连线模型的时延进行有效评估。

关键词：斜阶跃信号耦合RLC互连线时延估计解耦二阶矩模型改进的一阶模型

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Joint user association and resource partition for downlink-uplink decoupling in multi-tier HetNets Article

Zhi-yong FENG, Ze-bing FENG, T. Aaron GULLIVER

《信息与电子工程前沿（英文）》 2017年第18卷第6期页码 817-829 doi: 10.1631/FITEE.1700031

摘要：传统蜂窝网络要求移动用户上行和下行连接在相同基站上。然而，由于用户与基站发射功率存在差异，在不同无线环境下，将会导致用户从某基站接收到最强下行信号，但该基站并不能提供最强接收信号的上行链路。而且，由于大量机器设备接入蜂窝网络中，网络上行流量需求增大，从而导致基站下行和上行流量存在严重不对称。在多层异构蜂窝网络环境下，提出了基于上下行解耦的联合用户接入与资源划分模型。区别于现有用户接入异构蜂窝网络的准则，如基于最大用户接收功率和小区范围扩展，提出了基于联合博弈的机制以实现上下行解耦条件下的用户最优接入。对该机制的稳定性和收敛性作了证明，且证明其收敛到纳什均衡点的速率呈几何级数增长。此外，基于上述用户上下行接入的结果，得到了考虑用户公平性条件下的基站下行和上行最优带宽划分。仿真结果显示：相比现有其他用户接入策略，提出的机制有效地提升了网络速率。

关键词：上下行解耦；用户接入；资源划分；异构蜂窝网络；联合博弈

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基于知识的多变量非线性系统变结构解耦控制

涂承媛,曾衍钧

《中国工程科学》 2001年第3卷第10期页码 48-52

摘要：

文章提出了一种基于知识的变结构解耦控制策略，并用于多变量非线性系统的控制，避免了传统解耦控制所必须的建模过程，特别是避免了相应的大量复杂的矩阵运算。阐述了其控制知识库中的一些模块，给出了其算法要点。提出的策略成功地用于一个3×3强耦合系统一三绕组加热标准温度源的恒温控制，得到了温度稳定性和温度均匀性都优于1℃的效果，这是传统方法用于该系统所无法实现的。

关键词：多变量非线性系统解耦控制基于知识的变结构解耦

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5G应用下的MIMO阵列天线去耦方法综述 Review Articles

Xiao-xi ZHANG, Ai-di REN, Ying LIU

《信息与电子工程前沿（英文）》 2020年第21卷第1期页码 62-71 doi: 10.1631/FITEE.1900466

摘要：提出一种面向微纳卫星的自主汽化管理液氨推进系统。相比常规冷气或液化气推进系统，提出多路平行筛孔式汽化装置和对应汽化控制方法。所提方案有效解决了液氨高汽化潜热和不易完全汽化的问题，从而发挥液氨推进剂高贮存密度和高比冲性能优势。此外，重点分析自主汽化管理液氨推进系统的工作流程及其涉及的物理化学过程和数学模型。综合考虑推力表现和能源效率，提出最优系统推力控制策略。地面测试表明，自主汽化管理液氨推进系统总重1.8 kg（包含0.34 kg液氨推进剂），比冲达到100 s，系统功耗在10 W以下。自主汽化管理液氨推进系统具有高比冲、低功耗、可实现性强、推力输出均一稳定等特点，适合微纳卫星在轨应用。

关键词： MIMO阵列；5G手机；去耦方法

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基于逆系统理论的无轴承永磁同步电机解耦控制研究

费德成,朱熀秋

《中国工程科学》 2005年第7卷第11期页码 48-54

摘要：

应用多变量非线性控制逆系统理论，对无轴承永磁同步电机的多变量、非线性、强耦合的控制对象进行了动态解耦控制研究；介绍了逆系统理论，阐述了无轴承永磁同步电机径向力的产生机理，建立了转矩力和径向悬浮力状态方程，分析了基于逆系统理论解耦控制的可行性，推导出基于逆系统理论的无轴承永磁同步电机转矩力与径向力之间的动态解耦控制算法。仿真结果表明，这种控制策略能够实现转矩力与径向力之间的动态解耦，并且系统具有良好的动、静态性能。

关键词：无轴承永磁同步电机逆系统反馈线性化解耦控制

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Decoupling optimization of integrated energy system based on energy quality character

Shixi MA, Shengnan SUN, Hang WU, Dengji ZHOU, Huisheng ZHANG, Shilie WENG

《能源前沿（英文）》 2018年第12卷第4期页码 540-549 doi: 10.1007/s11708-018-0597-4

摘要：

Connections among multi-energy systems become increasingly closer with the extensive application of various energy equipment such as gas-fired power plants and electricity-driven gas compressor. Therefore, the integrated energy system has attracted much attention. This paper establishes a gas-electricity joint operation model, proposes a system evaluation index based on the energy quality character after considering the grade difference of the energy loss of the subsystem, and finds an optimal scheduling method for integrated energy systems. Besides, according to the typical load characteristics of commercial and residential users, the optimal scheduling analysis is applied to the integrated energy system composed of an IEEE 39 nodes power system and a 10 nodes natural gas system. The results prove the feasibility and effectiveness of the proposed method.

关键词： integrated energy system energy quality character optimization electric power system natural gas system

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调整产业结构降低碳排放强度的国际比较及经验启示

郭士伊,刘文强,赵卫东

《中国工程科学》 2021年第23卷第6期页码 22-32 doi: 10.15302/J-SSCAE-2021.06.010

摘要：

研究发达国家通过调整产业结构降低碳排放强度，对我国实现碳达峰、碳中和目标具有重要的参考意义。本文以主要发达国家为研究对象，剖析碳排放总量、人均碳排放、碳排放强度、产业结构变化特征，据此获得调整产业结构降低碳排放的经验启示。自 1965 年以来，通过产业转移、科技创新、服务业升级，发达国家普遍形成了“脱钩型”产业结构，即支撑经济增长的同时降低碳排放的产业结构，但同时出现了“制造业空心化”的新问题。针对我国产业结构所处的工业化进程尚未完成、高耗能行业占比较大等现实国情，研究建议积极培育新能源等新兴产业，发挥数字经济在产业结构优化升级中的潜力；坚决防止“制造业空心化”，在确保产业链、供应链安全的前提下，统筹协调国内外产业转移，以此推动产业空间布局优化并促进新发展格局形成。

关键词：产业结构碳排放强度人均碳排放国际比较脱钩

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无轴承永磁同步电机转子磁场定向控制系统研究

朱熀秋,巫亮,周阳,张腾超,邓建明

《中国工程科学》 2006年第8卷第6期页码 35-40

摘要：

无轴承永磁同步电机是具有磁悬浮轴承优点的一种新型电机；在阐述了无轴承永磁同步电机工作原理基础上，采用转子磁场定向控制策略，推导了无轴承永磁同步电机径向悬浮力和电机旋转部分数学模型；根据无轴承电机解耦控制的要求设计了无轴承永磁同步电机转子磁场定向矢量控制系统，并以数字信号处理器TMS320LF2407为核心，研制了矢量控制系统的硬件和软件。实验结果表明：电机工作在0～3000r/min范围内，转子悬浮稳定且电机转速连续可调。

关键词：无轴承永磁同步电机解耦控制数字信号处理器数字控制

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非线性系统高阶微分反馈控制

齐国元,陈增强,袁著祉

《中国工程科学》 2003年第5卷第8期页码 35-44

摘要：

提出了不依赖系统模型的高阶微分反馈控制思想，控制目标是系统输出及其微分和高阶微分逼近设定输入及其微分和高阶微分，极大地提高了对控制品质要求。基于这种思想设计了能高品质地提取量测信号的微分和高阶微分的高阶微分器（HOD, high order differentiator），该HOD参数少，容易调节，并给出其稳定性、收敛性和滤波特性的证明；另外，对带有未知扰动、模型未知的非线性SISO和MIMO系统分别设计了基于HOD的高阶微分反馈自适应控制器（HODFC, high order differentials feedback adaptive controller），给出了闭环系统稳定性和鲁棒性分析，并且实现了线性化解耦控制。

关键词：高阶微分器高阶微分反馈控制器稳定性鲁棒性解耦控制

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水中爆炸对围岩增耦的实验研究

王占江,蔡宗义,郑学锋,朱玉荣

《中国工程科学》 2009年第11卷第4期页码 46-49

摘要：

为研究水中爆炸对围岩的增耦，在一个直径1.6 m的水泥砂浆半球体装置上，将其中心预留的直径0.3 m的腔室内注水和置入水泥砂浆芯体，对比性地进行了一系列的1.00 g TNT （2,4,6—三硝基甲苯）当量的填实和空腔爆炸实验。水泥砂浆球表运动测量数据表明，与水泥砂浆中的空腔解耦相比，水中空腔爆炸的解耦效果较差，尤其水腔中爆炸可大大增强爆炸能量的耦合。可以推断，水下爆炸会明显增强围岩中的爆炸应力波强度，近水域中的空中爆炸也可能会增强围岩中的爆炸能耦合，因而相对于围岩和堤坝中同距离、同药量的爆炸来讲，所引起

关键词：水下爆炸围岩增耦水泥砂浆应力波空腔解耦

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多天线系统的互耦抑制 Review

Jia-yin GUO, Feng LIU, Guo-dong JING, Lu-yu ZHAO, Ying-zeng YIN, Guan-long HUANG

《信息与电子工程前沿（英文）》 2020年第21卷第3期页码 366-376 doi: 10.1631/FITEE.1900490

摘要：多频带多天线系统已成为移动通信系统发展的重要趋势。但是，由于空间较小，天线单元之间往往会发生较强互耦，从而损坏阵列天线的性能。因此，在多输入多输出（MIMO）天线系统中，人们一直追求在天线阵列小型化的基础上，实现较高的隔离度。本文深入研究天线单元间的去耦方法，分析互耦原因及耦合减少的优势。然后，比较分析近期提出的解耦方法。最后，提出由双层短截线组成的超表面结构，以改善沿H面和E面排列的天线的端口隔离。结果表明，所提超表面对紧密放置的天线阵列具有良好去耦效果。

关键词：互耦；多输入多输出；天线阵列；超表面；去耦

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标题作者时间类型操作

Decomposition and decoupling analysis of electricity consumption carbon emissions in China

期刊论文

Novel interpretable mechanism of neural networks based on network decoupling method

期刊论文

A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow

期刊论文

A novel decoupling approach to an integrated optical-fiber proximity sensor for robots

LIU Guixiong, LI Xiani

期刊论文