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都市圈蓝绿空间与保护地的规划管控

园林 2025年第1期42卷 2-3页

作者：张浪不详

实际上,都市圈是一个起源于美国城市经济地理学概念,一般以一个或两个超特大城市作为地区经济核心,借助现代化交通工具、综合运输网和高度发达信息网络,让城市个体间发生内在联系,构成相对完整的城市“集合体”。2021年国家首次写入五... 详细信息

实际上,都市圈是一个起源于美国城市经济地理学概念,一般以一个或两个超特大城市作为地区经济核心,借助现代化交通工具、综合运输网和高度发达信息网络,让城市个体间发生内在联系,构成相对完整的城市“集合体”。2021年国家首次写入五年发展规划(“十四五”规划),在2035年远景目标纲要中强调,要以高质量发展为核心,发展壮大都市圈,科学规划布局城市绿环绿廊绿楔,增加绿化节点和公共开放空间。2024年4月1日,自然资源部发布的《都市圈国土空间规划编制规程》指出,蓝绿空间网络与生态保护修复等是规划编制的要点之一。

关键词：规划管控都市圈规划编制特大城市信息网络综合运输网经济地理学空间网络

锥形术CT测量分析下颌第一磨牙拟种植区剩余牙槽嵴的骨量

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中国组织工程研究 2025年第8期29卷 1572-1577页

作者：蔡尧昊郎律黎红浙江中医药大学口腔医学院杭州口腔医院浙江省杭州市310000 中国科学技术大学附属第一医院(安徽省立医院)口腔医学中心安徽省合肥市230002 浙江中医药大学口腔医学院杭州口腔医院萧山分院浙江省杭州市310000

背景:随着口腔领域的发展与进步,口腔种植技术逐渐成为替代传统义齿的主流选择。近年来,多种骨增量技术的成熟以及口腔数字化领域的不断发展,使种植适应证不断扩大,种植手术的成功率也越来越高。但是种植手术前使用锥形术CT对剩余牙槽... 详细信息

背景:随着口腔领域的发展与进步,口腔种植技术逐渐成为替代传统义齿的主流选择。近年来,多种骨增量技术的成熟以及口腔数字化领域的不断发展,使种植适应证不断扩大,种植手术的成功率也越来越高。但是种植手术前使用锥形术CT对剩余牙槽嵴骨量进行准确测量并且个性化制定合适的种植方案,成为一部分临床医师的难题。目的:采用锥形束CT对下颌第一磨牙拟种植区剩余牙槽嵴骨量进行测量分析,为优化下颌第一磨牙区种植方案的设计提供参考。方法:采用回顾性研究设计,纳入205例下颌第一磨牙缺失患者的锥形术CT影像,测量下颌第一磨牙拟种植区剩余牙槽嵴高度及宽度,并将剩余牙槽嵴形态分为Ⅰ、Ⅱ、Ⅲ、Ⅳ4类(Ⅱ、Ⅲ、Ⅳ类剩余牙槽嵴为骨量不足),统计分析下颌第一磨牙剩余牙槽嵴高度、宽度、形态频数分布,不同性别患者下颌第一磨牙剩余牙槽嵴高度和牙槽嵴顶宽度的差异,剩余牙槽嵴高度与剩余牙槽嵴顶宽度、剩余牙槽嵴底宽度的相关性,年龄与剩余牙槽嵴顶宽度、高度的相关性。结果与结论:①下颌第一磨牙拟种植区剩余牙槽嵴高度平均为(12.14±2.96)mm,其中0.05),男性下颌第一磨牙剩余牙槽嵴顶宽度宽于女性,差异有显著性意义(P0.05);④剩余牙槽嵴形态Ⅰ类占58.05%(119/205),Ⅱ类占9.27%(19/205),Ⅲ类占20.49%(42/205),Ⅳ类占12.19%(25/205),其中多数为Ⅲ类剩余牙槽嵴骨量不足,临床医生需要根据剩余牙槽嵴类型个性化设计最佳的种植方案。

关键词：下颌第一磨牙剩余牙槽嵴形态锥形术CT 种植修复引导骨再生术牙槽骨劈开术骨移植术短种植体计算机辅助种植

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二分图蝴蝶计数研究综述

计算机应用文摘 2025年第1期41卷 202-203,206页

作者：余朗福建师范大学计算机与网络空间安全学院福州350007

蝴蝶计数是二分图中一项具有重要理论与实际意义的基础性研究任务,其核心目标是枚举二分图中的蝴蝶数量,这对于二分图网络的结构分析和应用场景至关重要。文章系统梳理了国内外现有的蝴蝶计数算法研究进展,全面深入地分析了各类算法,并... 详细信息

蝴蝶计数是二分图中一项具有重要理论与实际意义的基础性研究任务,其核心目标是枚举二分图中的蝴蝶数量,这对于二分图网络的结构分析和应用场景至关重要。文章系统梳理了国内外现有的蝴蝶计数算法研究进展,全面深入地分析了各类算法,并根据其特点进行了科学的归类与总结。基于此,结合当前的计数原理,探讨了未来研究的潜在方向,为二分图蝴蝶计数领域提供了新的研究视角和发展路径。

关键词：二分图蝴蝶计数二分团

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数字孪生技术赋能水利工程建设管理路径探索

水利建设与管理 2025年第1期45卷 68-73页

作者：郎启庄郎啟香高宽云南省水利水电科学研究院云南昆明650500 云南鸿禹水利水电工程质量检测有限公司云南昆明650200 国控基业(北京科技有限公司) 北京102400

随着物联网、大数据、人工智能等技术的快速发展,水利工程建设与数字技术的融合日益深入。本文针对水利工程建设与数字化技术融合存在的短板与瓶颈,基于数字孪生技术的特点,并结合云南省信息化建设相关案例,对水利工程建设管理的现实困... 详细信息

随着物联网、大数据、人工智能等技术的快速发展,水利工程建设与数字技术的融合日益深入。本文针对水利工程建设与数字化技术融合存在的短板与瓶颈,基于数字孪生技术的特点,并结合云南省信息化建设相关案例,对水利工程建设管理的现实困境进行了分析。从开展智能感知与信息监测建设、优化当前水利工程建设管理体系、构建综合高效的水利工程运维管理平台、数字技术赋能水利工程基础设施建设四个方面,探索了数字孪生技术赋能水利工程建设管理的技术思路。结果表明,若加大技术创新和资金投入,完善制度建设,推进数字孪生水利工程建设由试点示范向大范围推广转变,将为未来水利工程建设管理提供有力支撑。

关键词：水利工程管理数字孪生技术智慧水利

miR-338-3p靶向核因子κB受体活化因子配体影响牙槽骨成骨细胞增殖及凋亡

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中国组织工程研究 2025年第5期29卷 899-907页

作者：朗么磋张义林汪莉双流区第一人民医院(四川大学华西空港医院)口腔科四川省成都市621000

背景:miR-338-3p能够抑制破骨细胞分化,下调核因子κB受体活化因子配体水平能够促进骨形成。然而miR-338-3p是否通过调控核因子κB受体活化因子配体表达影响牙槽骨成骨细胞增殖、凋亡尚不清楚。目的:探究miR-338-3p靶向核因子κB受体活... 详细信息

背景:miR-338-3p能够抑制破骨细胞分化,下调核因子κB受体活化因子配体水平能够促进骨形成。然而miR-338-3p是否通过调控核因子κB受体活化因子配体表达影响牙槽骨成骨细胞增殖、凋亡尚不清楚。目的:探究miR-338-3p靶向核因子κB受体活化因子配体对牙槽骨成骨细胞增殖、凋亡的影响及机制。方法:分离人牙槽骨成骨细胞,对其进行细胞转染及Wnt-C59(Wnt/β-catenin通路抑制剂)处理,分为转染对照组、miR-338-3p组、miR-338-3p+对照组、miR-338-3p+核因子κB受体活化因子配体组和miR-338-3p+Wnt-C59组。双荧光素酶实验验证miR-338-3p对核因子κB受体活化因子配体的调控作用;CCK-8、EdU染色检测细胞增殖水平;流式细胞术检测细胞周期和凋亡水平;RT-qPCR检测细胞miR-338-3p、核因子κB受体活化因子配体、Wnt-3a、β-catenin、糖原合酶激酶3βmRNA表达水平;Western Blot检测细胞核因子κB受体活化因子配体、增殖细胞核抗原、Ki67、细胞周期蛋白D1、Bcl-2、Bax、天冬氨酸半胱氨酸蛋白酶3、Wnt-3a、β-catenin、糖原合酶激酶3β蛋白表达水平。结果与结论:①miR-338-3p靶向调控核因子κB受体活化因子配体;②过表达miR-338-3p后,细胞存活率、EdU阳性细胞率、S期细胞比例升高,细胞凋亡率降低,miR-338-3p、增殖细胞核抗原、Ki67、细胞周期蛋白D1、Bcl-2、Wnt-3a、β-catenin mRNA和蛋白水平升高,Bax、天冬氨酸半胱氨酸蛋白酶3、核因子κB受体活化因子配体、糖原合酶激酶3βmRNA和蛋白水平降低(均P<0.05);③过表达核因子κB受体活化因子配体或Wnt-C59处理能够减弱过表达miR-338-3p对细胞增殖、凋亡的影响(均P<0.05);④结果表明,miR-338-3p靶向核因子κB受体活化因子配体表达可促进牙槽骨成骨细胞增殖,并抑制细胞凋亡,其可能通过激活Wnt/β-catenin信号通路发挥作用。

关键词： miR-338-3p 核因子κB受体活化因子配体牙槽骨成骨细胞 Wnt/β-catenin信号通路

Side-channel analysis attacks based on deep learning network

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Frontiers of Computer Science 2022年第2期16卷 35-45页

作者： Yu OU lang LI Hunan Provincial Key Laboratory of Intelligent Information Processing and Application Hengyang Normal UniversityHengyang 421002China College of Information Science and Engineering Hunan Normal UniversityChangsha 410081China College of Computer Science and Technology Hengyang Normal UniversityHengyang 421002China

There has been a growing interest in the sidechannel analysis(SCA)field based on deep learning(DL)*** DL network or model has been developed to improve the efficiency of ***,few studies have investigated the impact of the different models on attack results and the exact relationship between power consumption traces and intermediate *** on the convolutional neural network and the autoencoder,this paper proposes a Template Analysis Pre-trained DL Classification model named TAPDC which contains three *** TAPDC model detects the periodicity of power trace,relating power to the intermediate values and mining the deeper features by the multi-layer convolutional *** implement the TAPDC model and compare it with two classical models in a fair *** evaluative results show that the TAPDC model with autoencoder and deep convolution feature extraction structure in SCA can more effectively extract information from power consumption ***,Using the classifier layer,this model links power information to the probability of intermediate *** completes the conversion from power trace to intermediate values and greatly improves the efficiency of the power attack.

关键词： side-channel analysis template attack machine learning deep learning

SCENERY:a lightweight block cipher based on Feistel structure

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Frontiers of Computer Science 2022年第3期16卷 193-202页

作者： Jingya FENG lang LI Hunan Provincial Key Laboratory of Intelligent Information Processing and Application Hengyang Normal UniversityHengyang 421002China College of Information Science and Engineering Hunan Normal UniversityChangsha 410081China College of Computer Science and Technology Hengyang Normal UniversityHengyang 421002China

In this paper,we propose a new lightweight block cipher called *** main purpose of SCENERY design applies to hardware and software *** is a 64-bit block cipher supporting 80-bit keys,and its data processing consists of 28 *** round function of SCENERY consists of 84×4 S-boxes in parallel and a 32× 32 binary matrix,and we can implement SCENERY with some basic logic *** hardware implementation of SCENERY only requires 1438 GE based on 0.18 um CMOS technology,and the software implementation of encrypting or decrypting a block takes approximately 1516 clock cycles 0118-bit microcontrollers and 364 clock cycles on 64-bit *** with other encryption algorithms,the performance of SCENERY is well balanced for both hardware and *** the security analyses,SCENERY can achieve enough security margin against known attacks,such as differential cryptanalysis,linear cryptanalysis,impossible differential cryptanalysis and related-key attacks.

关键词： lightweight block cipher feistel structure cryptanalysis internet of things

Impact of the spindle number on the material transport and mixing during planetary roller melt granulation Author links open overlay panel

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Particuology 2024年第8期91卷 260-267页

作者： Tom lang Jens Bartsch Laboratory of Solids Process Engineering Department of Biochemical and Chemical EngineeringTU Dortmund University44227DortmundGermany

In comparison to the established twin-screw machines,the application of a planetary roller granulator for continuous operation of melt granulation is a promising alternative based on the unique process *** initial study focused on the material transport during processing as a key driver for the overall ***,the impact of direct process parameters on the residence time distribution was the main *** investigations are complemented in this study by considering the free processing volume,which is defined by the number of planetary spindles applied within a *** impact on the processing conditions is evaluated with respect to the process setting in terms of feed rate and rotation *** results highlight the potential of altering the underlying transport function in planetary roller melt granulation(PRMG)via the investigated direct process and equipment *** impact of the feed rate is lower in comparison,while a higher rotation speed as well as a higher free processing volume promote material ***,a normalization of the determined residence time distribution(RTD)model data was feasible with respect to the process settings and the number of applied planetary spindles in the processing *** demonstrates the key role of the free processing volume in the fundamental mechanisms of material transport and mixing during PRMG.

关键词： Continuous manufacturing Melt granulation Planetaryroller granulator Quality-by-Design Residence time Material mixing

Influence of entrainer recycle for batch heteroazeotropic distillation

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Frontiers of Chemical Science and Engineering 2018年第4期12卷 643-659页

作者： Laszlo Hegely Peter lang Department of Building Service and Process Engineering Faculty of Mechanical Engineering Budapest University of Technology and EconomicsMuegyetem rkp.3-9Hungary

Dehydration of isopropanol applying batch heteroazeotropic distillation with toluene as entrainer (E) is investigated. The composition of the feed is near to that of the isopropanol (A)-water (B) azeotrope. The effects of recycling the entrainer and the off-cut are studied by dynamic simulation with a professional flow-sheet simulator. Three consecutive batches (one production cycle) is studied. Both operational modes (Mode I: decantation after distillation and Mode II: decantation during distillation) are simulated. For Mode II, calculations are performed both for Strategy A (distillate from the aqueous (E-lean) phase only) and Strategy B (partial withdrawal of the organic (Erich phase), as well). The E-rich phase, the final column hold-up and the off-cut (Mode II only) are recycled to the next batch. The influence of the following parameters are determined: quantity of entrainer, reflux ratios of the steps. The variations caused by the recycling in the 2(nd) and 3(rd) batches are also shown. The best results (lowest specific energy demand and highest recovery of A) are obtained by Mode II, Strategy A. Recycling increases the recovery, and drastically diminishes the entrainer consumption. However, it makes the production slower and decreases the quantity of fresh feed that can be processed.

关键词： batch distillation heteroazeotropic distillation operational policies off-cut recycle entrainer