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Process knowledge graph modeling techniques and application methods for ship heterogeneous models

SCIENTIFIC REPORTS 2022年第1期12卷 1-14页

作者： Dong, Jianwei Jing, xuwen Lu, Xiang liu, Jinfeng li, Haipeng Cao, Xuwu Du, Chenxiao li, Jun li, Lei Jiangsu Univ Sci & Technol Sch Mech Engn Zhenjiang 212100 Jiangsu Peoples R China China Merchants Cruise Shipbldg Co LTD Nantong 226000 Peoples R China

In the process design and reuse of marine component products, there are a lot of heterogeneous models, causing the problem that the process knowledge and process design experience contained in them are difficult to express and reuse. Therefore, a process knowledge representation model for ship heterogeneous model is proposed in this paper. Firstly, the multi-element process knowledge graph is constructed, and the heterogeneous ship model is described in a unified way. Then, the multi-strategy ontology mapping method is applied, and the semantic expression between the process knowledge graph and the entity model is realized. Finally, by obtaining implicit semantics based on case-based reasoning and checking the similarity of the matching results, the case knowledge reuse is achieved, to achieve rapid design of the process. This method provides reliable technical support for the design of ship component assembly and welding process, greatly shortens the design cycle, and improves the working efficiency. In addition, taking the double-deck bottom segment of a ship as an example, the process knowledge map of the heterogeneous model is constructed to realize the rapid design of ship process, which shows that the method can effectively acquire the process knowledge in the design case and improve the efficiency and intelligence of knowledge reuse in the process design of the heterogeneous model of a ship.

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自体髂骨块植骨结合Calcar螺钉重建内侧柱治疗复杂肱骨近端骨折

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中华肩肘外科电子杂志 2021年第3期9卷 244-248页

作者：祝相如张聿达李绪文刘国明梁承志扈延龄青岛大学医学部 266073 青岛大学附属医院创伤外科 266000

目的探讨自体髂骨块移植结合Calcar螺钉重建内侧柱治疗肱骨近端骨折的临床疗效。方法回顾性分析我院自2016年1月至2018年12月收治的36例单侧复杂肱骨近端骨折患者,采用自体髂骨块移植结合Calcar螺钉治疗。随访时间12~24个月,平均17.04... 详细信息

目的探讨自体髂骨块移植结合Calcar螺钉重建内侧柱治疗肱骨近端骨折的临床疗效。方法回顾性分析我院自2016年1月至2018年12月收治的36例单侧复杂肱骨近端骨折患者,采用自体髂骨块移植结合Calcar螺钉治疗。随访时间12~24个月,平均17.04个月。记录术后3、6、12个月随访时Neer肩关节功能评分(Neer评分)和肩关节功能评分(Constant评分);采用视觉模拟评分(visual analogue scale,VAS)评估患者术后疼痛程度。分析患者骨折愈合时间、并发症发生情况及肩关节活动范围。结果36例患者均达到解剖复位,骨折平均愈合时间为3.71个月,没有患者出现肱骨头缺血性坏死及内翻塌陷。术后12个月随访时,患者Neer评分(84.64±3.40)分;Constant评分(74.26±4.70)分;VAS(1.24±0.72)分。患肩关节活动度:屈(132.58±8.01)°、伸(43.75±3.41)°、内旋(58.25±4.89)°、体侧外旋(58.89±4.83)°、外展(136.46±11.04)°。结论对于内侧粉碎性复杂肱骨近端骨折,自体髂骨块植骨结合Calcar螺钉能够重建可靠的内侧支撑,降低内翻塌陷及肱骨头缺血性坏死等并发症的风险,术后功能恢复满意。

关键词：肱骨近端骨折髂骨植骨内侧柱骨移植

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Ternary-Host and Heterojunction Enabled Eye-Visible Elastic Mechanoluminescence from (Ca0.5Sr0.5)ZnOS/xZnS/Mn2+

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JOURNAL OF PHYSICAL CHEMISTRY C 2022年第3期126卷 1523-1530页

作者： Jia, Jingna Fu, li Gao, xuwen Dong, Shuangtian Xu, Yuqi Wang, Dongyang Zou, Guizheng Shandong Univ Sch Chem & Chem Engn Jinan 250100 Peoples R China

Mechanoluminescence (ML) is one kind of mechanical-tooptical energy conversion, and a strategy toward achieving bright elastic ML emission is strongly anticipated for ML application. Herein, a ternary-host strategy is proposed for synthesizing heterojunction ML materials with eyevisible elastic ML under an ultralow pressure of 2 N, in which ZnS, CaCO3, and SrCO3 are employed as precursors to prepare the ternary-host (Ca0.5Sr0.5)ZnOS/xZnS. Upon partially substituting the precursor ZnS with MnCO3, the Mn2+ activator could introduce luminescent centers and carrier traps into the ternary-host (Ca0.3Sr0.5)ZnOS/xZnS and enable achieving a series of (Ca0.5Sr0.5)ZnOS/xZnS/Mn2+ phosphors with bright and pressure-sensitive elastic ML. The (Ca0.5Sr0.5)ZnOS/xZnS/Mn2+ phosphors not only exhibit eyevisible red ML under ambient conditions without any preirradiation but can also display a linearly enhanced ML intensity along with the enlarged external force at a 2 N interval as well as regeneratable ML upon repetitively applying an external force 20 times. The maximum emission wavelength of ML can be conveniently modulated from 623 to 658 nm by adjusting the ZnS content of (Ca0.5Sr0.5)ZnOS/xZnS/Mn2+ phosphors.

关键词： Phosphors Transition metals Elastic materials Precursors Materials

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计算机辅助个体化钉道设计在髋臼前柱和耻骨上支骨折螺钉经皮置入中的应用

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精准医学杂志 2022年第2期37卷 161-164页

作者：祝相如陈新张成栋刘巧聪刘国明李绪文王天瑞扈延龄青岛大学附属医院创伤外科山东青岛266100 青岛市城阳区人民医院急诊外科

目的探讨术前计算机辅助个体化钉道设计在髋臼前柱和耻骨上支骨折螺钉经皮置入术中的临床应用价值。方法回顾性分析我院2018年12月—2020年12月40例(共45侧)使用通道螺钉技术进行治疗的髋臼前柱或耻骨上支骨折患者。根据术前是否使用计... 详细信息

目的探讨术前计算机辅助个体化钉道设计在髋臼前柱和耻骨上支骨折螺钉经皮置入术中的临床应用价值。方法回顾性分析我院2018年12月—2020年12月40例(共45侧)使用通道螺钉技术进行治疗的髋臼前柱或耻骨上支骨折患者。根据术前是否使用计算机进行个体化钉道设计分为计算机辅助组(A组)和常规手法组(B组),A组患者术前均使用Mimics软件进行螺钉预置入,确定螺钉入钉点、螺钉方向和螺钉长度。B组按照手术操作者经验及以往解剖学研究得出的螺钉角度进行螺钉置入,不进行个体化设计。记录两组患者术中每枚螺钉的置入时间(置钉时间)、术中透视次数(透视次数)、螺钉长度、骨折愈合时间和术后6个月随访时的髋关节Merle D′Aubignéand Postel评分与骨盆Majeed功能评分。结果A组患者置钉成功率高于B组(χ^(2)=8.666,P<0.05),A组置钉时间、透视次数较B组明显减少(t=5.910、8.138,P<0.05),A组螺钉长度较B组明显缩短(t=18.863,P<0.05),两组患者骨折愈合时间及术后6个月时功能评分比较差异无显著性(P>0.05)。结论术前使用计算机对髋臼前柱和耻骨上支螺钉位置进行个体化设计,能够在保证手术效果的前提下缩短螺钉长度,从而降低拉力螺钉置入难度,能够为无或轻度移位的髋臼前柱和耻骨上支骨折的治疗提供新的方法,且临床疗效满意。

关键词：髋臼耻骨骨折,闭合性骨折固定术,内骨螺丝拉力螺钉计算机辅助设计

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INDIVIDUAliZED SPORTS MANAGEMENT SCHEME FOR PREGNANT WOMEN IN CHINA

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JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY 2019年第8期19卷

作者： Yang, lin Luo, Qi Lu, Yang Zhang, Song Yang, Yimin li, xuwen Hao, Dongmei Xu, Mingzhou Shao, Jing Beijing Univ Technol Coll Life Sci & Bioengn Beijing 100124 Peoples R China Beijing Elect Power Hosp Beijing 100073 Peoples R China Beijing Aerosp Chang Feng Co Ltd Beijing 100071 Peoples R China Beijing Yes Med Devices Co Ltd Beijing 100152 Peoples R China

In recent years, pregnant women in China generally face problems such as unbalanced and excessive nutrition, lack of proper exercise during pregnancy, which shows a significant increase in weight during pregnancy, leading to an increasing trend of perinatal complications. At present, there is less sports health management system for pregnant women throughout pregnancy. In view of this, based on the existing research in related fields, this study deeply explores the appropriate monitoring methods of pregnant women's sports in China. In this study, effective and convenient testing methods and evaluation criteria were proposed for pregnant women's sports and psychology. The research idea was a method based on the pulse wave to detect pregnant women's cardiac reserve capacity, and grading the Diastolic/Systolic value of pregnant women as a reference for grading individualized target heart rate range of moderate intensity exercise. The effective time and energy expenditure of pregnant women were assessed by monitoring the exercise process. The purpose is to help and guide pregnant women in the whole process of pregnancy self-movement management, and thus improve the quality of maternal health care services in China.

关键词： Pregnancy health sports management pulse wave, exercise assessment

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Prediction of Subsequent Vertebral Fracture After Acute Osteoporotic Fractures from Clinical and Paraspinal Muscle Features

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CALCIFIED TISSUE INTERNATIONAL 2024年第6期114卷 614-624页

作者： Xiong, Yuchao Zhang, Cici Chen, Xiaopei Wu, li liang, Shaohua Zhang, Ye Huang, Junbing Guo, Wei Zeng, xuwen Xu, Fan Jinan Univ Guangzhou Red Cross Hosp Dept Radiol Guangzhou Peoples R China

To construct a nomogram based on clinical factors and paraspinal muscle features to predict vertebral fractures occurring after acute osteoporotic vertebral compression fracture (OVCF). We retrospectively enrolled 307 patients with acute OVCF between January 2013 and August 2022, and performed magnetic resonance imaging of the L3/4 and L4/5 intervertebral discs (IVDs) to estimate the cross-sectional area (CSA) and degree of fatty infiltration (FI) of the paraspinal muscles. We also collected clinical and radiographic data. We used univariable and multivariable Cox proportional hazards models to identify factors that should be included in the predictive nomogram. Post-OVCF vertebral fracture occurred within 3, 12, and 24 months in 33, 69, and 98 out of the 307 patients (10.8%, 22.5%, and 31.9%, respectively). Multivariate analysis revealed that this event was associated with percutaneous vertebroplasty treatment, higher FI at the L3/4 IVD levels of the psoas muscle, and lower relative CSA of functional muscle at the L4/5 IVD levels of the multifidus muscle. Area under the curve values for subsequent vertebral fracture at 3, 12, and 24 months were 0.711, 0.724, and 0.737, respectively, indicating remarkable accuracy of the nomogram. We developed a model for predicting post-OVCF vertebral fracture from diagnostic information about prescribed treatment, FI at the L3/4 IVD levels of the psoas muscle, and relative CSA of functional muscle at the L4/5 IVD levels of the multifidus muscle. This model could facilitate personalized predictions and preventive strategies.

关键词： Osteoporosis Compression fracture Paraspinal muscles Fat infiltration Nomograms

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Coreactant-free and Near-Infrared Electrochemiluminescence Immunoassay with n-Type Au Nanocrystals as Luminophores

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ANALYTICAL CHEMISTRY 2022年第34期94卷 11934-11939页

作者： Fu, li liu, Xiancheng Zeng, Ying Zhang, Qingqing Zhang, Bin Gao, xuwen Zou, Guizheng Shandong Univ Sch Chem & Chem Engn Jinan 250100 Peoples R China Shenzhen Lifotron Technol Co Ltd Shenzhen 518055 Peoples R China

The electrochemiluminescence (ECL) bioassay is prominently carried out with the involvement of the coreactant. To remove the detrimental effects of the coreactant on the ECL of luminophores, herein, a promising ECL immunoassay strategy with biocompatible nanoparticles as the luminophore is proposed, which involves directly and electrochemically oxidizing the luminophore methionine-capped Au (Met@Au) nanocrystals (NCs) without the participation of any coreactant. Met@Au NCs are a kind of n-type nanoparticles, and they can be electrochemically injected with valence band (VB) holes around +0.80 and +1.10 V (vs Ag/AgCl). The electrochemically injected exogenous VB hole can recombine with the endogenous conduction band electron of Met@Au NCs and eventually bring out two coreactant-free and near-infrared ECL processes around 0.80 V (ECL-1) and 1.10 V (ECL-2). The intensity of coreactant-free ECL is primarily determined by the electrochemical oxidation-induced hole-injection process. ECL-2 is considerably stronger than ECL-1 and can be exploited for determining the carcinoembryonic antigen (CEA) in a sandwich immunoassay procedure with a linear range from 0.1 to 50 pg/mL as well as a limit of detection of 0.03 pg/mL (S/N = 3).

关键词： Biopolymers Immunoassays Inorganic carbon compounds Nanoparticles Peptides and proteins

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互通匝道合流连接部设计分析

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公路 2024年第7期69卷 61-67页

作者：许文刚黎军中交第二公路勘察设计研究院有限公司武汉市430056 广州市市政工程设计研究总院有限公司广州市510180

随着我国各地经济的快速发展,高速公路的新建与改扩建项目增多。出入高速公路的节点及高速之间的交叉相对增加,同时交通运输部对互通立交规范及细则不断完善。结合狮子洋通道工程项目中的设计实践内容,对施工图设计时需处理的匝道汇流... 详细信息

随着我国各地经济的快速发展,高速公路的新建与改扩建项目增多。出入高速公路的节点及高速之间的交叉相对增加,同时交通运输部对互通立交规范及细则不断完善。结合狮子洋通道工程项目中的设计实践内容,对施工图设计时需处理的匝道汇流细节设计进行归纳与总结,为互通匝道合流连接部设计提供参考。

关键词：匝道连接部双车道匝道入口辅助车道与匝道车道宽度过渡匝道相互汇流连续合流间距

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Transformers-sklearn: a toolkit for medical language understanding with transformer-based models

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BMC MEDICAL INFORMATICS AND DECISION MAKING 2021年第SUPPL 2期21卷 1-8页

作者： Yang, Feihong Wang, xuwen Ma, Hetong li, Jiao Chinese Acad Med Sci Peking Union Med Coll Inst Med Informat & Lib 3rd Yabao Rd Beijing 100020 Peoples R China

Background Transformer is an attention-based architecture proven the state-of-the-art model in natural language processing (NLP). To reduce the difficulty of beginning to use transformer-based models in medical language understanding and expand the capability of the scikit-learn toolkit in deep learning, we proposed an easy to learn Python toolkit named transformers-sklearn. By wrapping the interfaces of transformers in only three functions (i.e., fit, score, and predict), transformers-sklearn combines the advantages of the transformers and scikit-learn toolkits. Methods In transformers-sklearn, three Python classes were implemented, namely, BERTologyClassifier for the classification task, BERTologyNERClassifier for the named entity recognition (NER) task, and BERTologyRegressor for the regression task. Each class contains three methods, i.e., fit for fine-tuning transformer-based models with the training dataset, score for evaluating the performance of the fine-tuned model, and predict for predicting the labels of the test dataset. transformers-sklearn is a user-friendly toolkit that (1) Is customizable via a few parameters (e.g., model_name_or_path and model_type), (2) Supports multilingual NLP tasks, and (3) Requires less coding. The input data format is automatically generated by transformers-sklearn with the annotated corpus. Newcomers only need to prepare the dataset. The model framework and training methods are predefined in transformers-sklearn. Results We collected four open-source medical language datasets, including TrialClassification for Chinese medical trial text multi label classification, BC5CDR for English biomedical text name entity recognition, DiabetesNER for Chinese diabetes entity recognition and BIOSSES for English biomedical sentence similarity estimation. In the four medical NLP tasks, the average code size of our script is 45 lines/task, which is one-sixth the size of transformers' script. The experimental results show that transformers-skl

关键词： Transformer NLP Toolkit Deep Learning Medical Language Understanding

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Facile synthesis of 3D N-doped porous carbon nanosheets as highly active electrocatalysts toward the reduction of hydrogen peroxide

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NANOSCALE 2018年第31期10卷 14923-14930页

作者： Lu, Nannan Zhang, Tingting Yan, Xiaoyi Gu, Yue liu, He Xu, Zhiqian Xu, Haixin li, xuwen Zhang, Zhiquan Yang, Ming Jilin Univ Coll Chem Changchun 130012 Jilin Peoples R China Jilin Univ Hosp 1 Dept Breast Surg Changchun 130012 Jilin Peoples R China

Constructing three-dimensional (3D) conductive frameworks with high specific surface areas and porous structures is indispensable for their applications as electrocatalysts. In this work, we illustrate for the first time that 3D N-doped porous carbon nanosheets (3D-NS), which are synthesized via a facile one-pot pyrolysis reaction using glucose and melamine as raw materials, can serve as high performance and green electrocatalysts for the reduction of H2O2. Moreover, a series of 3D-NS samples with a controllable content of nitrogen were obtained by adjusting the calcination temperature. From our research, the 3D-NS obtained at 900 degrees C possessed high specific surface areas, porous structures, proper dosages of N atoms, suitable degrees of graphitization and defects. Furthermore, we also illustrate their application in H2O2 electrochemical sensing in physiological environments. Under optimum conditions, the 3D-NS-based sensor displays a wide linear scope in the range of 0.5-14 000 mu M and a low detection limit of 0.18 mu M (S/N = 3). Therefore, with desirable selectivity, stability and anti-interference performance, the proposed sensor can be feasibly applied to detect H2O2 in human serum samples.

关键词： Electrocatalysts

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