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An Innovative K-Anonymity Privacy-Preserving Algorithm to Improve Data Availability in the Context of Big Data

Computers, Materials & Continua 2024年第4期79卷 1561-1579页

作者： Linlin Yuan tiantian zhang Yuling Chen Yuxiang Yang Huang Li State Key Laboratory of Public Big Data College of Computer Science and TechnologyGuizhou UniversityGuiyang550025China College of Information Engineering Guizhou Open UniversityGuiyang550025China Guizhou Academy of Tobacco Science Guiyang550025China

The development of technologies such as big data and blockchain has brought convenience to life,but at the same time,privacy and security issues are becoming more and more *** K-anonymity algorithm is an effective and low computational complexity privacy-preserving algorithm that can safeguard users’privacy by anonymizing big ***,the algorithm currently suffers from the problem of focusing only on improving user privacy while ignoring data *** addition,ignoring the impact of quasi-identified attributes on sensitive attributes causes the usability of the processed data on statistical analysis to be *** on this,we propose a new K-anonymity algorithm to solve the privacy security problem in the context of big data,while guaranteeing improved data ***,we construct a new information loss function based on the information quantity *** that different quasi-identification attributes have different impacts on sensitive attributes,we set weights for each quasi-identification attribute when designing the information loss *** addition,to reduce information loss,we improve K-anonymity in two ***,we make the loss of information smaller than in the original table while guaranteeing privacy based on common artificial intelligence algorithms,i.e.,greedy algorithm and 2-means clustering *** addition,we improve the 2-means clustering algorithm by designing a mean-center method to select the initial center of ***,we design the K-anonymity algorithm of this scheme based on the constructed information loss function,the improved 2-means clustering algorithm,and the greedy algorithm,which reduces the information ***,we experimentally demonstrate the effectiveness of the algorithm in improving the effect of 2-means clustering and reducing information loss.

关键词： Blockchain big data K-anonymity 2-means clustering greedy algorithm mean-center method

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Structural Characteristics and Evolution of a Weighted Sino-US Container Shipping Network

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Chinese Geographical Science 2024年第5期34卷 810-828页

作者： zhang tiantian XI Daping JIANG Wenping FENG Yuhao WANG Chuyuan HU Xini National Engineering Research Center of GIS China University of GeosciencesWuhan 430078China School of Geography and Information Engineering China University of GeosciencesWuhan 430078China School of Resources and Environmental Sciences Wuhan UniversityWuhan 430074China

This study selected the Sino-US route data from the top 30 global container liner companies between December 1,2019,and December 29,2019,as the data source utilizing the complex network research *** constructs a Sino-US container shipping network through voyage weighting and analyzes the essential structural characteristics to explore the network’s complex structural *** network’s evolution is examined from three perspectives,namely,time,space,and event influence,aiming to comprehens-ively explore the network’s evolution *** results revealed that:1)the weighted Sino-US container shipping network exhib-its small-world and scale-free *** hub ports in the United States include NEW YORK NY,SAVANNAH GA,LOS ANGELES CA,and OAKLAND CA,whereas SHANGHAI serving as the hub port in *** geographical distribution of these hub ports is uneven.2)Concerning the evolution of the weighted Sino-US container shipping network,from a temporal perspective,the evolution of the regional structure of the entire Sino-US region and the Inland United States is in a stage of radiative expansion and de-velopment,with a need for further enhancement in competitiveness and development *** evolution of the regional structure of southern China and Europe is transitioning from the stage of radiative expansion and development to an advanced equilibrium *** shipping development in Northern China,the Western and Eastern United States,and Asia is undergoing significant changes but faces challenges of fierce competition and *** a spatial perspective,the rationality and effectiveness of the improved weighted Barrat-Barthelemy-Vespignani(BBV)model are confirmed through theoretical *** applicability of the improved evolution model is verified by simulating the evolution of the weighted Sino-US container shipping *** an event impact per-spective,the Corona Virus Disease 2019(COVID-19)pandemic has not fundamentally affecte

关键词： container shipping network structure characteristics network evolution voyage weighting improved Barrat-Barthelemy-Vespignani(BBV)model

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Dynamic Characteristics of the Long Runout Rock-ice Avalanche at High Altitude-A Case from the Zelongnong Basin, Eastern Himalayan Syntaxis, China

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ACTA GEOLOGICA SINICA-ENGLISH EDITION 2024年第5期98卷 1376-1393页

作者： Gao, Shaohua Yin, Yueping Li, Bin Gao, Yang zhang, Nan zhang, tiantian Gao, Haoyuan Liu, Xiaojie Chinese Acad Geol Sci Inst Geomech Beijing 100081 Peoples R China China Inst Geol Environm Monitoring Beijing 100081 Peoples R China Minist Nat Resources Key Lab Act Tecton & Geol Safety Beijing 100081 Peoples R China Lanzhou Univ Technol Sch Civil Engn Lanzhou 730050 Peoples R China

Rock-ice avalanches have frequently occurred in the Eastern Himalayan Syntaxis region due to climate change and active tectonic movements. These events commonly trigger catastrophic geohazard chains, including debris flows, river blockages, and floods. This study focuses on the Zelongnong Basin, analyzing the geomorphic and dynamic characteristics of high-altitude disasters. The basin exhibits typical vertical zonation, with disaster sources initiating at elevations exceeding 4000 m and runout distances reaching up to 10 km. The disaster chain movement involves complex dynamic effects, including impact disintegration, soil-rock mixture arching, dynamic erosion, and debris deposition, enhancing understanding of the flow behavior and dynamic characteristics of rock-ice avalanches. The presence of ice significantly increases mobility due to lubrication and frictional melting. In the disaster event of September 10, 2020, the maximum flow velocity and thickness reached 40 m/s and 43 m, respectively. Furthermore, continuous deformation of the Zelongnong glacier moraine was observed, with maximum cumulative deformations of 44.68 m in the distance direction and 25.96 m in the azimuth direction from March 25, 2022, to August 25, 2022. In the future, the risk of rock-ice avalanches in the Eastern Himalayan Syntaxis region will remain extremely high, necessitating a focus on early warning and risk mitigation strategies for such basin disasters.

关键词： rock-ice avalanche dynamic characteristics mobility moraine Eastern Himalayan Syntaxis FREEZE-THAW CYCLES LANDSLIDE FRAGMENTATION ROCKSLIDE GLACIERS FAILURE FLOOD

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Effects of alcohol on digestion,absorption and metabolism of sea cucumber saponins in healthy mice

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Food Science and Human Wellness 2024年第1期13卷 137-145页

作者： Wenxian Dang Rong Li Jinyue Yang Changhu Xue Qingrong Huang Yuming Wang tiantian zhang College of Food Science and Engineering Ocean University of ChinaQingdao 266003China Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Department of Food Science Rutgers State University New BrunswickNJ 08901USA

Sea cucumber saponins have attracted more attention in recent years due to biological *** is a popular practice to soak sea cucumber in Baijiu at home and being applied to industrial manufacturing in ***,knowledge of the effect of alcohol on the absorption and metabolism of sea cucumber saponins is *** effects of alcohol on digestion,absorption and metabolism of sea cucumber saponins in BALB/c mice were investigated after gavage and tail intravenous *** results showed that the content of saponins in serum and liver was significantly higher under the influence of alcohol than that in the control group after oral *** promoted the absorption of sea cucumber saponins prototype as well as inhibited the process of saponins being transformed into deglycositic metabolites in the small ***,sea cucumber saponins remained in circulation for a long time and alcohol slowed down the clearance of sea cucumber saponins under the influence of alcohol after intravenous *** confirmed the feasibility of marinating sea cucumber in Baijiu to improve the efficacy of saponins and provides an important theoretical basis for the utilization of sea cucumber and the development of sea cucumber liquor.

关键词： Holothurin A Echinoside A Alcohol Absorption Metabolism

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Trimethylamine N-oxide generation process was influenced by the proportion and source of macronutrients in the diet

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Food Science and Human Wellness 2024年第2期13卷 649-658页

作者： Chengcheng Wang Xuefeng Duan Xiaoyue Li Jinyue Yang Changhu Xue Teruyoshi Yanagita tiantian zhang Yuming Wang College of Food Science and Engineering Ocean University of ChinaQingdao 266003China Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Laboratory of Nutrition Biochemistry Department of Applied Biochemistry and Food ScienceSaga UniversitySaga 840-8502Japan

Trimethylamine N-oxide(TMAO)is a risk factor of various chronic diseases,which was produced by metabolism from precursors to trimethylamine(TMA)in gut and the oxidation from TMA in *** TMA generation was influenced by diet,mainly due to the rich TMAO precursors in ***,it was still unclear that the effects of different proportion and source of macronutrients in different dietary pattern on the production process of ***,the generation of TMA from precursors and TMAO from TMA was determined after single oral choline chloride and intraperitoneal injection TMA,respectively,in mice fed with carbohydrates,proteins and fats in different proportion and *** results suggested that the generation of TMAO was increased by low non-meat protein and high fat via enhancing the production of TMAO from TMA,and decreased by plant protein and refined sugar via reducing TMA production from precursors in gut and TMAO transformation from TMA in *** high fat and high sugar diets accelerating the development of atherosclerosis did not increase the production of TMAO,the risk factor for atherosclerosis,which indicated that the dietary compositions rather than the elevated TMAO level might be a more key risk factor for atherosclerosis.

关键词： Trimethylamine N-oxide(TMAO) Trimethylamine(TMA) Dietary composition Macronutrients Gut microbiota

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Dynamic Characteristics of the Long Runout Rock-ice Avalanche at High Altitude——A Case from the Zelongnong Basin, Eastern Himalayan Syntaxis, China

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Acta Geologica Sinica(English Edition) 2024年第5期 1376-1393页

作者： GAO Shaohua YIN Yueping LI Bin GAO Yang zhang Nan zhang tiantian GAO Haoyuan LIU Xiaojie Institute of Geomechanics Chinese Academy of Geological Sciences China Institute of Geological Environment Monitoring Key Laboratory of Active Tectonics and Geological Safety Ministry of Natural Resources School of Civil Engineering Lanzhou University of Technology

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Sea cucumber derived sulfated sterols alter glucose metabolism by promoting gluconeogenesis and reducing glycogenesis in healthy mice

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Food Science and Human Wellness 2024年

作者： Shanyun Yu Teng Wang Yingcai Zhao Xiaoyue Li Changhu Xue Yuming Wang tiantian zhang SKL of Marine Food Processing & Safety Control， College of Food Science and Engineering， Ocean University of China Sanya Institute of Oceanography， Ocean University of China

Sea cucumber derived sulfated sterols (SS) significantly ameliorated insulin resistance and decreased lipid accumulation compared to plant sterols. Interestingly， our recent study found that intervention with sea cucumber sulfated sterols could significantly increase blood glucose levels of healthy mice in the presence of glucose， while cholesterol sulfate， as one of sulfated sterols， did not have the same effect. However， the exact mechanism of SS on glucose metabolism is still unknown. In the present study， we investigated the potential mechanism by which SS influenced blood glucose homeostasis in healthy mice. Results showed that intervention with sea cucumber sulfated sterols did not affect the levels of hormones related to glucose metabolism， while led to a significant decrease in the synthesis of liver glycogen and muscle glycogen. Besides， the expression of proteins associated with the promotion of gluconeogenesis dramatically increased in the mice intervened with sea cucumber sulfated sterols. These findings suggested that sea cucumber sulfated sterols might change blood glucose metabolism in healthy mice by reducing glycogenesis and promoting gluconeogenesis.

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短程心理治疗的发展与前景

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海军军医大学学报 2024年第7期45卷 787-795页

作者：柏涌海张田恬杨光滟冰海军军医大学(第二军医大学)第二附属医院医学心理科上海200003

短程心理治疗通常指有时间限制或治疗次数限制的心理治疗,目前“短程”更多指的是一种简明的理念,而非其他的限制。近40年来,短程心理治疗逐步走向心理治疗的主流舞台。本文回顾了短程心理治疗在国内外的发展历程,对其定义、有效性、核... 详细信息

短程心理治疗通常指有时间限制或治疗次数限制的心理治疗,目前“短程”更多指的是一种简明的理念,而非其他的限制。近40年来,短程心理治疗逐步走向心理治疗的主流舞台。本文回顾了短程心理治疗在国内外的发展历程,对其定义、有效性、核心内容、基本技术及未来趋势做了系统阐述。在快速发展的21世纪,我国庞大的人口基数、巨大的社会压力、快速城镇化进程等均对心理健康服务的效率、效果提出更高要求,短程心理治疗必将会迎来广阔的应用前景。

关键词：短程心理治疗心理健康服务整合发展前景

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基于无波长偏移光学相位共轭的信号损伤补偿

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光学学报 2024年第7期44卷 44-50页

作者：巩小雪肖汶玲张琦涵张天天尹星郭磊重庆邮电大学通信与信息工程学院重庆400065 东北大学计算机科学与工程学院辽宁沈阳110819

为了解决强度调制-直接检测正交频分复用(IM-DD OFDM)光通信系统中由光纤色散和非线性效应导致的传输性能下降的问题,提出利用正交偏振泵浦非简并四波混频(NFWM)产生的无波长偏移光学相位共轭(OPC)波对系统中的信号损伤进行光域补偿。... 详细信息

为了解决强度调制-直接检测正交频分复用(IM-DD OFDM)光通信系统中由光纤色散和非线性效应导致的传输性能下降的问题,提出利用正交偏振泵浦非简并四波混频(NFWM)产生的无波长偏移光学相位共轭(OPC)波对系统中的信号损伤进行光域补偿。首先在理论上推导了利用正交偏振泵浦NFWM生成OPC波的原理,基于上述原理,设计了无波长偏移OPC实现方式,在正交偏振态上得到与原信号波长完全一致的OPC波。然后对影响生成OPC波功率的因素进行了具体分析。最后依据优化参数设置,进行仿真验证,结果表明所提系统能够以114.375 Gbit/s的传输速率在长度为240 km的标准单模光纤链路中传输。

关键词：光通信强度调制-直接检测正交频分复用色散补偿非线性抑制光学相位共轭

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眼科新进展 2024年第5期44卷 410-414页

作者：张甜甜李静田珍西安医学院陕西省西安市710021 陕西省人民医院眼科陕西省西安市710068

黄斑区脉络膜新生血管及视网膜下纤维化(SRFi)是湿性年龄相关性黄斑变性最常见的病理机制,常导致50岁以上人群不可逆性的视力丧失。尽管目前抗血管内皮生长因子已经成为临床主要有效的一线用药,但仍有近50%的病例因SRFi产生的瘢痕而最... 详细信息

黄斑区脉络膜新生血管及视网膜下纤维化(SRFi)是湿性年龄相关性黄斑变性最常见的病理机制,常导致50岁以上人群不可逆性的视力丧失。尽管目前抗血管内皮生长因子已经成为临床主要有效的一线用药,但仍有近50%的病例因SRFi产生的瘢痕而最终视力丧失。血小板源性生长因子家族是从人血小板中分离出来的一类促血管生成因子,目前已证实其参与了黄斑区脉络膜新生血管形成的过程,但具体作用机制仍不清楚。本文将血小板源性生长因子在年龄相关性黄斑变性新生血管以及SRFi形成的作用机制作一综述,为未来开发新型诊疗方式提供资料支持。

关键词：血小板源性生长因子年龄相关性黄斑变性黄斑区新生血管纤维化发病机制

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