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IDEA:A Utility-Enhanced Approach to Incomplete Data Stream Anonymization

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Tsinghua Science and Technology 2022年第1期27卷 127-140页

作者： Lu Yang Xingshu Chen Yonggang luo Xiao lan Wei Wang the College of Computer Science Sichuan UniversityChengdu 610065China the School of Cyber Science and Engineering Sichuan UniversityChengdu 610065China the Cyber Science Research Institute Sichuan UniversityChengdu 610065China

The prevalence of missing values in the data streams collected in real environments makes them impossible to ignore in the privacy preservation of data ***,the development of most privacy preservation methods does not consider missing values.A few researches allow them to participate in data anonymization but introduce extra considerable information *** balance the utility and privacy preservation of incomplete data streams,we present a utility-enhanced approach for Incomplete Data strEam Anonymization(IDEA).In this approach,a slide-window-based processing framework is introduced to anonymize data streams continuously,in which each tuple can be output with clustering or anonymized *** consider the dimensions of attribute and tuple as the similarity measurement,which enables the clustering between incomplete records and complete records and generates the cluster with minimal information *** avoid the missing value pollution,we propose a generalization method that is based on maybe match for generalizing incomplete *** experiments conducted on real datasets show that the proposed approach can efficiently anonymize incomplete data streams while effectively preserving utility.

关键词： anonymization generalization incomplete data streams privacy preservation utility

The Forecast Skills and Predictability Sources of Marine Heatwaves in the NUIST-CFS1.0 Hindcasts

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Advances in Atmospheric Sciences 2024年第8期41卷 1589-1600页

作者： jing MA Haiming XU Changming DONG jing-Jia luo Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/KLME/ILCEC/Institute of Climate and Application Research(ICAR) Nanjing University of Information Science and TechnologyNanjingJiangsu 210044China

Using monthly observations and ensemble hindcasts of the Nanjing University of Information Science and Technology Climate Forecast System(NUIST-CFS1.0) for the period 1983–2020, this study investigates the forecast skill of marine heatwaves(MHWs) over the globe and the predictability sources of the MHWs over the tropical oceans. The MHW forecasts are demonstrated to be skillful on seasonal-annual time scales, particularly in tropical oceans. The forecast skill of the MHWs over the tropical Pacific Ocean(TPO) remains high at lead times of 1–24 months, indicating a forecast better than random chance for up to two years. The forecast skill is subject to the spring predictability barrier of El Nino-Southern Oscillation(ENSO). The forecast skills for the MHWs over the tropical Indian Ocean(TIO), tropical Atlantic Ocean(TAO), and tropical Northwest Pacific(NWP) are lower than that in the TPO. A reliable forecast at lead times of up to two years is shown over the TIO, while a shorter reliable forecast window(less than 17 months) occurs for the TAO and ***, the forecast skills for the TIO, TAO, and NWP are seasonally dependent. Higher skills for the TIO and TAO appear in boreal spring, while a greater skill for the NWP emerges in late summer-early autumn. Further analyses suggest that ENSO serves as a critical source of predictability for MHWs over the TIO and TAO in spring and MHWs over the NWP in summer.

关键词： marine heatwaves NUIST-CFS1.0 hindcasts forecast skill predictability source ENSO

Construction of 3D porous Cu_(1.81)S/nitrogen-doped carbon frameworks for ultrafast and long-cycle life sodium-ion storage

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 191-200页

作者： Chen Chen Hongyu Xue Qilin Hu Mengfan Wang Pan Shang Ziyan Liu Tao Peng Deyang Zhang Yongsong luo Key Laboratory of Microelectronics and Energy of Henan Province Henan Joint International Research Laboratory of New Energy Storage TechnologyCollege of Physics and Electronic EngineeringXinyang Normal UniversityXinyang 464000China School of Physics and Electronic Engineering Nanyang Normal UniversityNanyang 473061China

Transition metal sulfides have great potential as anode mterials for sodium-ion batteries(SIBs)due to their high theoretical specific ***,the inferior intrinsic conductivity and large volume variation during sodiation-desodiation processes seriously affect its high-rate and long-cyde performance,unbeneficial for the application as fast-charging and long-cycling SIBs ***,the three-dimensional porous Cu_(1.81)S/nitrogen-doped carbon frameworks(Cu_(1.81)S/NC)are synthesized by the simple and facile sol-gel and annealing processes,which can accommodate the volumetric expansion of Cu_(1.81)S nanoparticles and accelerate the transmission of ions and electrons during Na^(+)insertion/extraction processes,exhibiting the excellent rate capability(250.6 mA·g^(-1)at 20.0 A·g^(-1))and outstanding cycling stability(70% capacity retention for 6000 cycles at 10.0 A·g^(-1))for ***,the Na-ion full cells coupled with Na_(3)V_(2)(PO_(4))_(3)/C cathode also demonstrate the satisfactory reversible specific capacity of 330.5 mAh·g^(-1)at 5.0 A·g^(-1)and long-cycle performance with the 86.9% capacity retention at 2.0 A·g^(-1)after 750 *** work proposes a promising way for the conversionbased metal sulfides for the applications as fast-charging sodium-ion battery anode.

关键词： copper sulfide nanoparticles porous carbon framework fast charging long-cycle performance sodium-ion full batteries

基于光谱分析的鞣花酸和尿石素A~D与HSA相互作用机理研究

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光谱学与光谱分析 2025年第1期45卷 282-290页

作者：谢星程鑫鹏张露罗晶王乐怀林文静卢菲艳涂宗财江西师范大学健康学院食品营养与健康系江西南昌330022 南昌大学食品科学与资源挖掘全国重点实验室江西南昌330047

采用光谱分析结合分子模拟技术探究了鞣花酸(EA)及其代谢产物尿石素A~D(UA~D)与人血清白蛋白(HSA)的相互作用机理,有助于解析其药理毒性和药效。研究结果表明EA和UA~D能与HSA以1∶1的摩尔比例结合并通过静态方式猝灭HSA的荧光。UA和UC与... 详细信息

采用光谱分析结合分子模拟技术探究了鞣花酸(EA)及其代谢产物尿石素A~D(UA~D)与人血清白蛋白(HSA)的相互作用机理,有助于解析其药理毒性和药效。研究结果表明EA和UA~D能与HSA以1∶1的摩尔比例结合并通过静态方式猝灭HSA的荧光。UA和UC与HSA结合是氢键和范德华力驱动的放热过程,而EA和UD与HSA结合疏水相互作用驱动的吸热过程。三维荧光图谱分析表明UC~D和EA与UA~B分别增加了HSA色氨酸和酪氨酸微环境的亲水性和疏水性。分子模拟分析结果表明,EA和UA~D与HSA的活性氨基酸残基Lys436、Asp187、Lys432、Arg485、Leu430、Leu4、Ile388、Tyr411等形成氢键,与氨基酸残基Ala191、Val456、Lys199和Trp214之间存在疏水相互作用,证明其主要通过氢键和范德华力与HSA结合,屏蔽HSA的糖基化位点,抑制其糖基化。可为EA和UA~D作为糖基化抑制剂用于治疗糖尿病并发症奠定理论基础。

关键词：人血清白蛋白糖基化相互作用机理光谱分析鞣花单宁及其代谢产物

Cortico-striatal gamma oscillations are modulated by dopamine D3 receptors in dyskinetic rats

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Neural Regeneration Research 2025年第4期20卷 1164-1177页

作者： Pengfei Wang Yuewei Bi Min Li Jiazhi Chen Zhuyong Wang Huantao Wen Ming Zhou Minjie luo Wangming Zhang Neurosurgery Center Department of Pediatric NeurosurgeryGuangdong Provincial Key Laboratory on Brain Function Repair and RegenerationZhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong ProvinceChina

Long-term levodopa administration can lead to the development of levodopa-induced *** oscillations are a widely recognized hallmark of abnormal neural electrical activity in levodopa-induced ***,studies have reported increased oscillation power in cases of levodopa-induced ***,little is known about how the other electrophysiological parameters of gamma oscillations are altered in levodopa-induced ***,the role of the dopamine D3 receptor,which is implicated in levodopa-induced dyskinesia,in movement disorder-related changes in neural oscillations is *** found that the cortico-striatal functional connectivity of beta oscillations was enhanced in a model of Parkinson’s ***,levodopa application enhanced cortical gamma oscillations in cortico-striatal projections and cortical gamma aperiodic components,as well as bidirectional primary motor cortex(M1)↔dorsolateral striatum gamma *** of PD128907(a selective dopamine D3 receptor agonist)induced dyskinesia and excessive gamma oscillations with a bidirectional M1↔dorsolateral striatum ***,administration of PG01037(a selective dopamine D3 receptor antagonist)attenuated dyskinesia,suppressed gamma oscillations and cortical gamma aperiodic components,and decreased gamma causality in the M1→dorsolateral striatum *** findings suggest that the dopamine D3 receptor plays a role in dyskinesia-related oscillatory activity,and that it has potential as a therapeutic target for levodopa-induced dyskinesia.

关键词： aperiodic components dopamine D3 receptor dorsolateral striatum functional connectivity gamma oscillations levodopa-induced-dyskinesia local field potentials neuromodulation Parkinson’s disease primary motor cortex

Pseudo-break imaging of carbon nanotubes for determining elastic bending energies

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Nano Research 2023年第5期16卷 7443-7451页

作者： Changfei jing Yongji Qin Wengen Ouyang Jun luo Institute for New Energy Materials and Low-Carbon Technologies and Tianjin Key Lab of Photoelectric Materials and Devices School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of ChinaShenzhen 518110China Department of Engineering Mechanics School of Civil EngineeringWuhan UniversityWuhan 430072China State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan 430072China

One-dimensional(1D)nanomaterials easily bend due to perturbations from their surroundings or their own *** phenomenon not only impacts the performances of various devices but has also been employed to develop a variety of new functional devices,in which the bending energies of the nanomaterials determine the device ***,measuring the energies of such nanomaterials is extremely ***,pseudo-break imaging of 1D nanomaterials has been proposed and realized on individual carbon nanotubes(CNTs),in which a CNT appears to break and has a fracture but is actually *** imaging approach provides the values of the bending energies of the CNTs with an accuracy of 1–50 ***,this imaging approach can manipulate the bending shapes and energies of *** work presents a protocol for bending analysis and manipulation,which are vital to fundamental and applied studies of 1D nanomaterials.

关键词： pseudo-break imaging carbon nanotube electron microscopy elastic bending energy

Long term integration algorithm for high-dynamic targets

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Journal of Systems Engineering and Electronics 2016年第5期27卷 979-985页

作者： Gang Yang Haikun luo jing Tian Siliang Wu School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China Beijing Institute of Remote Sensing Equipment Beijing 100854China Science and Technology on Electronic Information Control Laboratory Chengdu 610036China

A new long term integration algorithm is proposed forhigh-dynamic targets, which can resolve the problems of spectrumspread, frequency walk and pseudorandom noise （PRN）code phase curvature caused by the motion of targets. This algorithmfirst applies a keystone transform based improved discretepolynomial-phase transform （KT-IDPT） to estimate the Dopplerchirp rate. Then, based on the estimated Doppler chirp rate,dechirping and envelope translation are performed on the partialcorrelation results to correct the spectrum spread and the codephase curvature. The simulation results demonstrate that the proposedmethod has low integration loss and computational burden.

关键词： High-dynamic target long term integration motioncompensation.

Privacy Preserving Solution for the Asynchronous Localization of Underwater Sensor Networks

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IEEE/CAA Journal of Automatica Sinica 2020年第6期7卷 1511-1527页

作者： Haiyan Zhao jing Yan Xiaoyuan luo Xinping Guan Institute of Electrical Engineering Yanshan UniversityQinhuangdao 066004China IEEE Department of Automation Shanghai Jiao Tong UniversityShanghai 200240China

Location estimation of underwater sensor networks(USNs)has become a critical technology,due to its fundamental role in the sensing,communication and control of ocean ***,the asynchronous clock,security attack and mobility characteristics of underwater environment make localization much more challenging as compared with terrestrial sensor *** paper is concerned with a privacy-preserving asynchronous localization issue for ***,a hybrid network architecture that includes surface buoys,anchor nodes,active sensor nodes and ordinary sensor nodes is ***,an asynchronous localization protocol is provided,through which two privacy-preserving localization algorithms are designed to estimate the locations of active and ordinary sensor *** is worth mentioning that,the proposed localization algorithms reveal disguised positions to the network,while they do not adopt any homomorphic encryption *** importantly,they can eliminate the effect of asynchronous clock,i.e.,clock skew and *** performance analyses for the privacy-preserving asynchronous localization algorithms are also ***,simulation and experiment results reveal that the proposed localization approach can avoid the leakage of position information,while the location accuracy can be significantly enhanced as compared with the other works.

关键词： Asynchronous clock localization privacy preservation underwater sensor networks(USNs)

High dimensional cross-sectional dependence test under arbitrary serial correlation

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Science China Mathematics 2017年第2期60卷 345-360页

作者： lan Wei PAN Rui luo RongHua CHENG YongWei Statistics School and Center of Statistical Research Southwestern University of Finance and Economics Chengdu 611130 China School of Statistics and Mathematics Central University of Finance and Economics Beijing 100081 China School of Finance Southwestern University of Finance and Economics Chengdu 611130 China Institute of Economics Tsinghua University Beijing 100084 China

In panel data analysis,the cross-sectional dependence(CD)test has been extensively used to test the cross-sectional ***,this traditional CD test does not take serial correlation into consideration,which commonly occurs in many *** solve this problem,we propose an adjusted CD test which is able to effectively handle serial *** specifically,the serial correlation can be of arbitrary form in our ***,we establish the theoretical properties of the proposed adjusted CD *** extensive Monte Carlo experiments show that the traditional CD test cannot work well under serial correlation,while the proposed adjusted CD test does provide rather satisfactory performance.

关键词： CD test cross-sectional dependence panel data serial correlation