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Interactive modeling of lofted shapes from a single image

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Computational Visual Media 2020年第3期6卷 279-289页

作者： congyue Deng Jiahui Huang Yong-Liang Yang Tsinghua University Beijing100084China University of Bath BathBA27AYUK

Modeling the complete geometry of general shapes from a single image is an ill-posed *** hints are often incorporated to resolve ambiguities and provide guidance during the modeling process. In this work, we present a novel interactive approach for extracting high-quality freeform shapes from a single image. This is inspired by the popular lofting technique in many CAD systems, and only requires minimal user input. Given an input image, the user only needs to sketch several projected cross sections, provide a"main axis", and specify some geometric relations. Our algorithm then automatically optimizes the common normal to the sections with respect to these constraints,and interpolates between the sections, resulting in a high-quality 3 D model that conforms to both the original image and the user input. The entire modeling session is efficient and intuitive. We demonstrate the effectiveness of our approach based on qualitative tests on a variety of images, and quantitative comparisons with the ground truth using synthetic images.

关键词： image User sketch

基于网络药理学和分子对接研究路路通治疗类风湿关节炎的分子机制

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现代药物与临床 2024年第12期39卷 3058-3064页

作者：杨祥军申意伟王丛悦徐西林胡海张晓峰黑龙江中医药大学附属第二医院天津市滨海新区中医医院(天津中医药大学第四附属医院) 哈尔滨市中医医院黑龙江中医药大学附属第三医院

目的利用网络药理学和分子对接技术，研究路路通Liquidambaris Fructus治疗类风湿关节炎的分子机制。方法通过TCMSP数据库确定路路通的活性成分和潜在作用靶点。利用GeneCards、OMIM、DisGeNET数据库检索类风湿关节炎的相关靶点。使用V... 详细信息

目的利用网络药理学和分子对接技术，研究路路通Liquidambaris Fructus治疗类风湿关节炎的分子机制。方法通过TCMSP数据库确定路路通的活性成分和潜在作用靶点。利用GeneCards、OMIM、DisGeNET数据库检索类风湿关节炎的相关靶点。使用Venny 2.1绘制韦恩图，确定交集靶点。基于STRING数据库，使用Cytoscape 3.10软件构建“药物–活性成分–潜在靶点–疾病”网络图，并通过拓扑分析筛选核心靶点。利用DAVID数据库进行基因本体（GO）富集分析和京都基因与基因组百科全书（KEGG）通路富集分析。通过Autodock软件进行分子对接实验。结果筛选出松脂素、β-谷甾醇、谷甾醇、异斯他丁环氧4个活性成分，169个潜在靶点。确定了114个与类风湿关节炎相关的交集靶点。构建了“中药–成分–靶点–疾病”网络，筛选出溶质载体家族6成员3(SLC6A3)、11-β-羟基类固醇脱氢酶1(HSD11B1)等核心靶点。GO与KEGG富集分析揭示了多个生物学过程和信号通路，如神经活性配体-受体相互作用、钙信号通路等。分子对接验证了活性成分与核心靶点之间的相互作用。结论路路通可能通过调节类风湿关节炎相关的关键靶点（SLC6A3、HSD11B1等）和信号通路，发挥抗炎和免疫调节作用，为类风湿关节炎的临床治疗提供了新的分子层面的证据。

关键词：路路通类风湿关节炎网络药理学分子对接松脂素 β-谷甾醇谷甾醇异斯他丁环氧

A design method for booster motor of brake-by-wire system based on intelligent electric vehicle

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Green Energy and Intelligent Transportation 2023年第4期2卷 58-68页

作者： Bumin Meng Zhengzhao Zhou congyue Zhang Feifan Yang The School of Automation and Electronic Information Xiangtan UniversityXiangtan 411105China School of Mechanical Engineering Xiangtan UniversityXiangtan 411105China

The brake-by-wire(BBW)system is an essential part of the intelligent electric vehicle,which is determination of the braking safety and recovery *** design a safe and efficient booster motor,the design of booster motor for BBW system is discussed in this *** comparative analysis,experimental simulation and assessment argument,the scheme of designing a booster motor for brake-by-wire system is completely ***,the mainstream structure of the BBW system and the main challenges it faces in the assisted motor are ***,comparing the motors of different types and structures,the motor body and control system scheme suitable for the characteristics of the booster motor system are ***,through the simulation analysis of the ansoft and matlab,the optimization scheme of the motor and performance improvement are ***,through the actual design of a set of the booster motor system,the safe and efficient motor designing are verified,and the problems involving functional safety are ***,focus on the problem while simulation and experiment,some important countermeasures to improve current technology and prospect of in-depth study are pointed out.

关键词： Electric vehicle Brake-by-wire system Booster motor Braking energy recovery

Fault diagnosis of a marine power-generation diesel engine based on the Gramian angular field and a convolutional neural network

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2024年第6期25卷 470-482页

作者： congyue LI Yihuai HU Jiawei JIANG Dexin CUI Merchant Marine College Shanghai Maritime UniversityShanghai 201306China School of Mechanical and Energy Engineering Shanghai Technical Institute of Electronics&InformationShanghai 201411China

Marine power-generation diesel engines operate in harsh *** vibration signals are highly complex and the feature information exhibits a non-linear *** is difficult to extract effective feature information from the network model,resulting in low fault-diagnosis *** address this problem,we propose a fault-diagnosis method that combines the Gramian angular field(GAF)with a convolutional neural network(CNN).Firstly,the vibration signals are transformed into 2D images by taking advantage of the GAF,which preserves the temporal *** raw signals can be mapped to 2D image features such as texture and *** integrate the feature information,the images of the Gramian angular summation field(GASF)and Gramian angular difference field(GADF)are fused by the weighted average fusion ***,the channel attention mechanism and temporal attention mechanism are introduced in the CNN model to optimize the CNN learning *** the concept of residuals in the attention mechanism improves the feasibility of ***,the weighted average fused images are fed into the CNN for feature extraction and fault *** validity of the proposed method is verified by experiments with abnormal valve *** average diagnostic accuracy is 98.40%.When−20 dB≤signal-to-noise ratio(SNR)≤20 dB,the diagnostic accuracy of the proposed method is higher than 94.00%.The proposed method has superior diagnostic ***,it has a certain anti-noise capability and variable-load adaptive capability.

关键词： Multi-attention mechanisms(MAM) Convolutional neural network(CNN) Gramian angular field(GAF) Image fusion Marine power-generation diesel engine Fault diagnosis

Good Expectations Paid on China's Chemical Transportation and Storage Business

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China Chemical Reporter 2008年第31期19卷 10-10页

作者： Ma congyue

Given the increasingly strict work-safety and environmental protection policies in China,it is extremely important for chemical players to complete the transportation and storage system for chemicals and optimize the ... 详细信息

关键词： chemicals strict extremely turmoil optimize digit

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一维速度结构的地震波全波形反演理论测试

北京大学学报（自然科学版） 2019年第2期55卷 246-252页

作者：崔丛越王彦宾北京大学地球与空间科学学院地球物理系北京100871

为了验证地震学研究中全波形反演方法的有效性,并研究其收敛特点,编写基于共轭梯度法的一维地震波全波形反演程序。首先使用单个震源和台站反演出一维非均匀速度结构,然后通过改变此过程中的各个条件,讨论不同因素对反演结果的影响。结... 详细信息

为了验证地震学研究中全波形反演方法的有效性,并研究其收敛特点,编写基于共轭梯度法的一维地震波全波形反演程序。首先使用单个震源和台站反演出一维非均匀速度结构,然后通过改变此过程中的各个条件,讨论不同因素对反演结果的影响。结果显示,全波形反演在数据较好的情况下能够得到很精确的反演结果;震源和台站是影响反演的最主要因素;多尺度反演以及更好的初始模型能够有效地提高反演的稳定性;观测数据的噪声可使结果产生小尺度的波动,但在大尺度上对结果的影响相对较小。

关键词：伴随状态法共轭梯度法全波形反演

Biological Technology for Methionine Production Will Soon Be Industrialized

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China Chemical Reporter 2010年第20期21卷 21-22页

作者： Ma congyue,China National Chemical Information Center

Methionine is one of important amino acids necessary for the protein synthesis of livestock and poultry. It is usually added into poultry feed, and its content in poultry feed is generally 0.05% to 0.2%. Currently, the major types of feed-grade methionine are DL-methionine (99% solid), DL-methionine hydroxy analogue (MHA, 88% liquid) and its calcium salt (MHACa), metal methionine complexes and protective methionine preparations for ruminant animals. DL-methionine is synthesized with methyl mercaptan and acrolein that is made by the oxidation of propylene.

关键词： methionine propylene preparations poultry livestoc

The Area under the Curve (AUC) of Oral Glucose Tolerance Test (OGTT) Could Be a Measure Method of Hyperglycemia in All Pregnant Women

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Open Journal of Obstetrics and Gynecology 2019年第2期9卷 186-195页

作者： congyue Zhang Yumei Wei Weijie Sun Huixia Yang Department of Obstetrics and Gynecology Peking University First Hospital Beijing China

Objective: We adopted the area under the curve (AUC) of oral glucose tolerance test (OGTT) as a measure method of the severity of maternal hyperglycemia and investigated its relationship with adverse perinatal outcomes among women with and without gestational diabetes mellitus (GDM). Research design and methods: This is a retrospective cohort study. Our study group collected the medical records of 15,296 women who received perinatal care in 15 hospitals in Beijing and who delivered from July 1, 2013, to December 31, 2013. And several original articles on this cohort have been published. In this study, we analyze the relationship between AUC and adverse perinatal outcomes, so that in multiple pregnant cases, patients with pre-pregnancy diabetes, hypertension, and abnormal kidney function and those who did not receive a 75-g OGTT were excluded. A Chi-squared test and logistic regression analysis were used to determine the associations. Results: In total, 13,561 women were included. As the AUC of OGTT increased, the prevalence of macrosomia (odds ratio [OR] 1.059, 95% confidence interval [95% CI] 1.029 - 1.090, p < 0.001) and hypertensive diseases (OR 1.106, 95% CI 1.064 - 1.149, p < 0.001) also increased. For patients with same levels of AUC values, no significant differences in the risk of macrosomia, preterm birth and neonatal complications were observed between the GDM and non-GDM groups. Women with an AUC higher than 14.20 (mmol * h/L) had a higher risk of adverse outcomes regardless of the presence of GDM. Conclusions: The AUC could be a measure method of the severity of maternal hyperglycemia, and women with a high AUC should undergo aggressive management to avoid adverse outcomes regardless of the presence of GDM.

关键词： AUC GDM OGTT Measure Method Hyperglycemia

双碳目标下县域空间的减碳潜力与策略路径——基于浙江省碳排放权的解析与分配

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浙江大学学报（理学版） 2023年第1期50卷 121-130页

作者：周从越王竹裘知张钊浙江大学建筑工程学院浙江杭州310058

在双碳目标的驱动下,碳排放权愈发成为重要的地区发展权,在县域层面落实落位碳额分配是我国深入减碳的焦点,浙江省将在“十四五”时期进入局部率先达峰的二级减碳阶段。为分解落实我国自主减碳目标,采用熵权法构建以公平性、效率性、可... 详细信息

在双碳目标的驱动下,碳排放权愈发成为重要的地区发展权,在县域层面落实落位碳额分配是我国深入减碳的焦点,浙江省将在“十四五”时期进入局部率先达峰的二级减碳阶段。为分解落实我国自主减碳目标,采用熵权法构建以公平性、效率性、可持续性为原则的碳排放权分配模型,基于碳排放空间与减碳潜力测算方法,得到2017—2030年浙江省89个县(市、区)的碳排放权分配、碳排放空间分类和减碳潜力分级。结果表明,碳排放权分配在县域层级存在空间差异性,在省域层级存在空间平衡性;碳排放空间分类呈“南余北赤”模式;减碳潜力分级表现为“东高西低”的空间格局。鉴于对县(市、区)不同碳排机理的归纳与解析,提出了逐级修正的减碳路径与策略。

关键词：双碳目标碳排放权分配碳排放空间减碳潜力策略路径

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