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Chuan Choong YANG,Chit Siang SOH,Vooi Voon YAP
《能源前沿（英文）》 2015年 第9卷 第2期 页码 231-237 doi: 10.1007/s11708-015-0358-6
关键词： non-intrusive appliance load monitoring event detection goodness-of-fit (GOF) K-means clustering ON-OFF pairing
《结构与土木工程前沿（英文）》 页码 179-190 doi: 10.1007/s11709-022-0888-z
关键词： uncertain composite plate stochastic assume mode method Karhunen−Loève theorem polynomial chaos approach plate buckling irregularity in buckling mode shapes
State identification of home appliance with transient features in residential buildings
《能源前沿（英文）》 2022年 第16卷 第1期 页码 130-143 doi: 10.1007/s11708-022-0822-z
关键词： nonintrusive load monitoring (NILM) load disaggregation online load disaggregation Kalman filtering factorial hidden Markov model (FHMM) Labeled hIgh-Frequency daTaset for Electricity Disaggregation (LIFTED)
Non-invasive continuous blood pressure monitoring: a review of current applications
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《医学前沿（英文）》 2013年 第7卷 第1期 页码 91-101 doi: 10.1007/s11684-013-0239-5
Blood pressure monitoring has come a long way from the initial observations made by Reverend Hales in the 18th century. There are none that deny the importance of monitoring perioperative blood pressure; however, the limited ability of the current prevalent technology (oscillometric blood pressure monitoring) to offer continuous blood pressure measurements leaves room for improvement. Invasive monitoring is able to detect beat-to-beat blood pressure measurement, but the risks inherent to the procedure make it unsuitable for routine use except when this risk is outweighed by the benefits. This review focuses on the discoveries which have led up to the current blood pressure monitoring technologies, and especially the creation of those offering non-invasive but continuous blood pressure monitoring capabilities, including their methods of measurement and limitations.
关键词： non-invasive blood pressure monitoring continuous blood pressure monitoring invasive blood pressure monitoring Riva-Rocci technique oscillometric Pe?áz technique arterial tonometry pulse transit time
埋入式传感、图像处理技术和机器学习方法在路面监测与分析中应用的最新研究进展 Review
侯越, 李秋晗, 张晨, 陆国阳, 叶周景, 陈逸涵, 汪林兵, 曹丹丹
《工程（英文）》 2021年 第7卷 第6期 页码 845-856 doi: 10.1016/j.eng.2020.07.030
在现代交通系统中，道路作为车辆和行人使用频率最高的民用基础设施之一，其服役状况和使用寿命直接影响通行体验和效率。因此，在路面发生不可逆损伤之前进行路面健康监测和及时养护，对于保障公共交通服务质量以及通行安全至关重要。通过路面结构动力响应监测和路面状况评估可有效表征路面损伤状况。埋入式传感器、图像处理和机器学习是目前常用的三种路面结构动力响应监测技术和分析方法。本文综述了近年来上述三种技术在路面工程中的应用现状，并阐述了这些技术在未来路面工程监测与分析中的发展方向。
《农业科学与工程前沿（英文）》 2023年 第10卷 第4期 页码 627-638 doi: 10.15302/J-FASE-2023516
The agricultural and livestock activities surrounding the rivers flowing into the lakes have caused non-point source pollution, leading to excessive amounts of nutrient salts in downstream rivers. Introducing river water into constructed wetlands along river course has proven to be an effective solution for decreasing nitrogen (N) and phosphorus (P) loads. This paper reports 9 years of monitoring the Yong’an River and its surrounding constructed wetlands in the upper reaches of Erhai Lake, located in Yunnan Province, China. This study analyzed the main types of pollutants in the river, and evaluated the removal efficiency of pollutants by the constructed wetlands. The findings indicate that total nitrogen (TN) and nitrate nitrogen (NO3–-N) are the primary pollutants in the Yong’an River, which exhibit variation throughout the year corresponding to the alternating wet and dry seasons. Although constructed wetlands are effective in removing NO3–-N and P, their efficacy in removing ammonium nitrogen (NH4+-N) and organic pollutants is limited. This limitation can be attributed to the lack of timely disposal of aquatic plant residues. This research contributes to the understanding of the potential issues that may arise during the extended use of constructed wetlands and provides solutions to address them.
关键词： inflowing rivers surface-flow constructed wetland nutrients long-term monitoring
Distributed fiber optic monitoring of a CFA pile with a central reinforcement bar bundle
Yi RUI, Nicholas de BATTISTA, Cedric KECHAVARZI, Xiaomin XU, Mei YIN
《结构与土木工程前沿（英文）》 2021年 第15卷 第1期 页码 167-176 doi: 10.1007/s11709-020-0581-z
关键词： continuous flight auger pile static load test central reinforcement bar bundle distributed fiber optic sensor finite element load transfer
Xin Peng, Yang Tang, Wenli Du, Feng Qian
《化学科学与工程前沿（英文）》 2017年 第11卷 第3期 页码 429-439 doi: 10.1007/s11705-017-1675-6
关键词： non-Gaussian processes subspace projection independent component analysis locality preserving projection finite mixture model
Analysis of planetary gear transmission in non-stationary operations
Fakher CHAARI, Mohamed Slim ABBES, Fernando Viadero RUEDA, Alfonso Fernandez del RINCON, Mohamed HADDAR
《机械工程前沿（英文）》 2013年 第8卷 第1期 页码 88-94 doi: 10.1007/s11465-013-0361-8
Planetary gearboxes operate usually in non-stationary conditions generated mainly by variable loads applied to these transmissions. In order to understand the dynamic behavior of planetary gearboxes in such conditions, a mathematic model is developed including driving unit, transmission and load. The variability of load induces a variable speed of the transmission which is taken into account when characterizing the main dynamic parameter of the transmission which is the mesh stiffness function. This function is not periodic following the variability of the transmission speed. The computation of the dynamic response shows an intimate relation between the vibration amplitude level and the load value. As the load increase the vibration level increase. A combined amplitude and frequency modulation is observed which is well characterized using Short Time Fourier transform more suited than the spectral analysis.
关键词： planetary gearbox non-stationary conditions variable load dynamic response time frequency analysis
一种对工业过程复杂液体进行非接触原态在线实时监测方法 Article
段宁, 降林华, 徐夫元, 张歌
《工程（英文）》 2018年 第4卷 第3期 页码 392-397 doi: 10.1016/j.eng.2018.05.005
无法对工业过程大量存在的复杂液体在线实时监测导致资源消耗和污染产生过多的现象十分普遍。本文介绍一种对高强包裹性和高盐多组分液体中目标物质进行非接触原态在线实时监测的方法，该方法的原理是建立液体中目标物质浓度（C）、不同浓度目标物质色空间坐标(L*, a*, b*) 和最大吸收波长（λmax）三者之间的关系，利用最佳波长λT下高精度扫描式检测系统表达的液体光强信息直接测定流动液体中目标物质的瞬时浓度。与传统分析方法和现有在线分析方法不同，这种方法无需对样品进行任何预处理（过滤、稀释、定容、氧化/还原、添加显色剂等），可实现测试样品的原态化在线实时监测。将一家大型电解锰企业陈化液（Fe3+浓度0.5~18 mg•L-1， 锰离子35~39 g•L-1，硫酸铵90~110 g•L-1）胶体化过程中三价铁离子浓度的实测结果与离线实验室测试结果相比，二者相对误差小于2%。
施 毅,顾为东,施建中
《中国工程科学》 2015年 第17卷 第3期 页码 10-13
本文根据中国国情，提出“智能负载”这一新的理念。通过物联网将智能负载和智能电网结合起来构成“非并网多能源协同智能电网系统”，该系统的核心是将中国大量的高耗能产业通过必要的技术创新，改造成能够适应风电等可再生能源和电网输出功率巨大波动的“智能负载”，为中国政府提供一条适合国情、大幅度提高电网和发电装备利用效率，并将风电等可再生能源高效、低成本全部利用的新路径。
ENHANCING RAINFALL-RUNOFF POLLUTION MODELING BY INCORPORATION OF NEGLECTED PHYSICAL PROCESSES
《农业科学与工程前沿（英文）》 2023年 第10卷 第4期 页码 553-565 doi: 10.15302/J-FASE-2023519
The growing need to mitigate rainfall-runoff pollution, especially first flush, calls for accurate quantification of pollution load and the refined understanding of its spatial-temporal variation. The wash-off model has advantages in modeling rainfall-runoff pollution due to the inclusion of two key physical processes, build-up and wash-off. However, this disregards pollution load from wet precipitation and the relationship between rainfall and runoff, leading to uncertainties in model outputs. This study integrated the Soil Conservation Service curve number (SCS-CN) into the wash-off model and added pollutant load from wet precipitation to enhance the rainfall-runoff pollution modeling. The enhanced wash-off model was validated in a typical rural-residential area. The results showed that the model performed better than the established wash-off model and the commonly-used event mean concentrations method, and identified two different modes of pollution characteristics dominated by land pollution and rainfall pollution, respectively. In addition, the model simulated more accurate pollutant concentrations at high-temporal-resolution. From this, it was found that 12% of the total runoff contained 80% to 95% of the total load for chemical oxygen demand, total N, and total P, whereas it contained only 15% of the total load for NH4+-N. The enhanced model can provide deeper insights into non-point pollution mitigation.
关键词： Erhai Lake field experiment non-point source pollution load rainfall runoff wash-off model
方 敏,孔祥威,施建中,顾为东
《中国工程科学》 2015年 第17卷 第3期 页码 14-19
本文针对我国风能等可再生能源，由于其波动性而不能大规模并入电网的难题，提出了非并网风电理论。将高耗能负载改造成为能够适应电能波动的智能负载，极大地提高了可再生能源的利用率。研究了非并网风电理论的本质和内涵，并讨论了非并网风电理论的应用情况，为我国节能减排，提高电网效率和可再生能源利用率提出了一条新路径。
关键词： 非并网；多能源协同；智能负载
郑晅,郭佳奇
《中国工程科学》 2010年 第12卷 第3期 页码 39-44
秦岭终南山特长公路隧道规模庞大，通风系统复杂，为了合理确定通风配置，节约通风费用，评估自然风和交通活塞风等非机械式通风方式的通风效果就显得非常重要。课题组现场监测了终南山特长公路隧道内的自然风速、交通量及自然风压和交通风压共同作用下的风速，收集了大量数据。通过对监测数据的处理、分析得出，较大自然风速出现在10∶00—14∶00这个时间段，最大自然风速达到2.576 m/s；隧道东、西线交通量出现高峰期的时间段基本恒定；隧道东线内自然风压和交通风压共同作用下的风速较大的时间段基本上与交通量高峰期时间段相吻合，而西线这两个时间段吻合性较差，洞内风速变化相对平缓。考虑洞口外风向频率、风向、洞口实测温度等参数的自然风速计算方法计算值与实测自然风速较接近。隧道内自然风压和交通风压联合作用下的风速计算值虽小于现场实测值，但较接近实测值。
M. R. AKBARI,M. NIMAFAR,D. D. GANJI,M. M. AKBARZADE
《机械工程前沿（英文）》 2014年 第9卷 第4期 页码 402-408 doi: 10.1007/s11465-014-0316-8
The kinematic assumptions upon which the Euler-Bernoulli beam theory is founded allow it to be extended to more advanced analysis. Simple superposition allows for three-dimensional transverse loading. Using alternative constitutive equations can allow for viscoelastic or plastic beam deformation. Euler-Bernoulli beam theory can also be extended to the analysis of curved beams, beam buckling, composite beams and geometrically nonlinear beam deflection. In this study, solving the nonlinear differential equation governing the calculation of the large rotation deviation of the beam (or column) has been discussed. Previously to calculate the rotational deviation of the beam, the assumption is made that the angular deviation of the beam is small. By considering the small slope in the linearization of the governing differential equation, the solving is easy. The result of this simplification in some cases will lead to an excessive error. In this paper nonlinear differential equations governing on this system are solved analytically by Akbari-Ganji’s method (AGM). Moreover, in AGM by solving a set of algebraic equations, complicated nonlinear equations can easily be solved and without any mathematical operations such as integration solving. The solution of the problem can be obtained very simply and easily. Furthermore, to enhance the accuracy of the results, the Taylor expansion is not needed in most cases via AGM manner. Also, comparisons are made between AGM and numerical method (Runge-Kutta 4th). The results reveal that this method is very effective and simple, and can be applied for other nonlinear problems.
关键词： AGM critical load of columns large deformations of beam nonlinear differential equation
标题 作者 时间 类型 操作
A systematic approach to ON-OFF event detection and clustering analysis of non-intrusive appliance loadmonitoring
Chuan Choong YANG,Chit Siang SOH,Vooi Voon YAP
期刊论文
uncertain composite plates and stochastic irregularity in their buckling mode shapes: A semi-analytical non-intrusive
期刊论文
REDUCTION OF NON-POINT SOURCE POLLUTION IN THE YONG’AN RIVER BY CONSTRUCTED WETLAND BASED ON 9 YEARSOF MONITORING
期刊论文
Distributed fiber optic monitoring of a CFA pile with a central reinforcement bar bundle
Yi RUI, Nicholas de BATTISTA, Cedric KECHAVARZI, Xiaomin XU, Mei YIN
期刊论文
Performance monitoring of non-gaussian chemical processes with modes-switching using globality-locality
Xin Peng, Yang Tang, Wenli Du, Feng Qian
期刊论文
Analysis of planetary gear transmission in non-stationary operations
Fakher CHAARI, Mohamed Slim ABBES, Fernando Viadero RUEDA, Alfonso Fernandez del RINCON, Mohamed HADDAR
期刊论文
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