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Advances in polishing of internal structures on parts made by laser-based powder bed fusion

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0724-0

Abstract: However, the inferior surface quality of L-PBF components hinders its productization progress seriouslyThe causes of poor surface quality and differences in the microstructure and property of the surfacefeatures of L-PBF inner structures are presented to provide a perspective of their surface characteristicsweaknesses are summarized along with a discussion on the challenges and prospects for improving the interior surface

Keywords： laser-based powder bed fusion     polishing     internal structures     surface quality     surface features     post    

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Pathogen evolution, prevention/control strategy and clinical features of COVID-19: experiences from China

Frontiers of Medicine doi: 10.1007/s11684-023-1043-5

Abstract: The overall clinical features of variants of concern (VOC), heterogeneity in the clinical manifestations

Keywords： coronavirus disease 2019     SARS-CoV-2     epidemiology     clinical features    

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The role of geometrical features in the architectural-structural interaction: Some case studies of the

Maryam ZANDIYEHVAKILI, Isa HOJAT, Mehdi MAHMUDI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 716-724 doi: 10.1007/s11709-018-0508-0

Abstract: Having a qualitative approach, the present work discovers some successfully used geometrical features

Keywords： architectural-structural interaction     geometrical features     structure     architectural form     Iranian ancient    

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Review on environmental policies in China: Evolvement, features, and evaluation

ZHANG Kunmin, WEN Zongguo, PENG Liying

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2,   Pages 129-141 doi: 10.1007/s11783-008-0044-6

Abstract: industrialized countries to its own situation, China’s environmental policies have the following main features
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On the Technical Features and Development Trend of Main Battle Tank

Wang Zherong

Strategic Study of CAE 2002, Volume 4, Issue 11,   Pages 7-11

Abstract:

As a complex weapon system integrated with optical/mechanical/hydraulic technology, main battle tank (MBT) has powerful fire, high mobility and integrated protection. This paper described the status of MBT in the war and its performance characteristics. On the basis of analysis of existing problems and development tendency of current MBT, the author put forward that in order to meet the operational requirements of the future high-technology war the next generation MBT should be low-profiled, light, digital and stealthy.

Keywords： MBT     technical features     development trend    

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The clinicopathologic features of intraductal papillary mucinous neoplasms of the pancreas

QIN Xinyu, LIU Fenglin

Frontiers of Medicine 2007, Volume 1, Issue 2,   Pages 121-125 doi: 10.1007/s11684-007-0023-5

Abstract: Since first described in 1982, intraductal papillary mucinous neoplasm (IPMN) has been the preferred term to describe the proliferation of the pancreatic ductal epithelium. It is totally different from pancreatic carcinoma in epi demiology, histology, pathology and prognosis. According to the site of involvement, IPMNs are classified into three categories, i.e. main duct type, branch duct type, and combined type. Most branch duct IPMNs are benign, whereas the other two types are often malignant. A large branch duct IPMN and marked dilation of the main pancreatic duct indicate the presence of adenoma at least. The additional existence of large mural nodules increases the possibility of malignancy in all types. The prognosis is more favorable after complete resection of benign and non-invasive malignant IPMNs. Malignant IPMNs that become more aggressive after parenchymal invasion necessitate adequate lymph node dissection. On the other hand, asymptomatic branch duct IPMNs without mural nodules can be observed without the need for resection for a considerable period of time. Our review addresses available data, current understanding, controversy, and future directions about IPMNs.

Keywords： available     additional existence     necessitate     intraductal papillary     non-invasive    

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Symbolic representation based on trend features for knowledge discovery in long time series

Hong YIN,Shu-qiang YANG,Xiao-qian ZHU,Shao-dong MA,Lu-min ZHANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 744-758 doi: 10.1631/FITEE.1400376

Abstract: In this paper, we propose a new symbolic representation method for long time series based on trend featuresUnlike some previous symbolic methods, it focuses on retaining most of the trend features and patterns

Keywords： Long time series     Segmentation     Trend features     Symbolic     Knowledge discovery    

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Diagnosis of sewer pipe defects on image recognition of multi-features and support vector machine in

Xiangyang Ye, Jian’e Zuo, Ruohan Li, Yajiao Wang, Lili Gan, Zhonghan Yu, Xiaoqing Hu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1102-y

Abstract:

An image-recognition-based diagnosis system of pipe defect types was established.

1043 practical pipe images were gathered by CCTV robot in a southern Chinese city.

The overall accuracy of the system is 84% and the highest accuracy is 99.3%.

The accuracy shows positive correlation to the number of training samples.

Keywords： Sewer pipe defects     Defect diagnosing     Image recognition     Multi-features extraction     Support vector machine    

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Analysis on the distinguishing features of traditional Chinese therapeutics and related statistical issues

Jingqing Hu, Jie Qiao, Deying Kang, Baoyan Liu

Frontiers of Medicine 2011, Volume 5, Issue 2,   Pages 203-207 doi: 10.1007/s11684-011-0138-6

Abstract: Meanwhile, the distinct features of TCM theories and diagnostic-model have constantly challenged theThis paper introduces the following scientific features of traditional Chinese therapeutics: 1) its goalSome statistical problems are raised based on these features.

Keywords： traditional Chinese therapeutics     feature     statistic    

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SMRs – overview, international developments, safety features and the GRS simulation chain

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 793-809 doi: 10.1007/s11708-021-0751-2

Abstract: transport, compactness and modularity, core design, improved core cooling, exclusion of accidents, features

Keywords： small modular reactors (SMRs)     history     recent developments     safety aspects     simulation chain of the Gesellschaft für Anlagen- und Reaktorsicherheit (GRS)    

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Accounting for local features of fouling formation on PHE heat transfer surface

Petro Kapustenko, Jiří J. Klemeš, Olga Arsenyeva, Olexandr Matsegora, Oleksandr Vasilenko

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 619-629 doi: 10.1007/s11705-018-1736-5

Abstract: The fouling phenomena can create significant operational problems in the industry by deteriorating heat recuperation, especially in heat exchangers with enhanced heat transfer. For a correct prediction of fouling development, the reliable fouling models must be used. The analysis of existing fouling models is presented. The chemical reaction and transport model developed earlier for a description of fouling on intensified heat transfer surfaces is used for modeling of plate heat exchanger (PHE) subjected to fouling. The mathematical model consists of a system of differential and algebraic equations. The integration of it is performed by finite difference method with developed software for personal computer. For countercurrent streams arrangement in PHE the solution of two-point boundary problem is realized on every time step. It enables to estimate local parameters of heat transfer process with fouling formation and its development in time with the growth of deposited fouling layer. Two examples of model application in cases of PHEs working at sugar factory and in district heating network are presented. The comparison with experimental data confirmed the model validity and the possibility of its application to determine the performance of PHE subjected to fouling.

Keywords： heat transfer     fouling     plate heat exchanger     mathematical model    

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Improving entity linking with two adaptive features Research Article

Hongbin ZHANG, Quan CHEN, Weiwen ZHANG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 11,   Pages 1620-1630 doi: 10.1631/FITEE.2100495

Abstract:

(EL) is a fundamental task in natural language processing. Based on neural networks, existing systems pay more attention to the construction of the , but ignore latent semantic information in the and the acquisition of effective information. In this paper, we propose two , in which the first adaptive feature enables the local and s to capture latent information, and the second adaptive feature describes effective information for embeddings. These can work together naturally to handle some uncertain information for EL. Experimental results demonstrate that our EL system achieves the best performance on the AIDA-B and MSNBC datasets, and the best average performance on out-domain datasets. These results indicate that the proposed , which are based on their own diverse contexts, can capture information that is conducive for EL.

Keywords： Entity linking     Local model     Global model     Adaptive features     Entity type    

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Using heterogeneous patent network features to rank and discover influential inventors

Yong-ping DU,Chang-qing YAO,Nan LI

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7,   Pages 568-578 doi: 10.1631/FITEE.1400394

Abstract: This approach is a flexible rule-based method, making full use of the features of network topology.

Keywords： Heterogeneous patent network     Influence     Rule-based ranking    

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State identification of home appliance with transient features in residential buildings

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 130-143 doi: 10.1007/s11708-022-0822-z

Abstract: The use of transient features can achieve fast state inference and it is suitable for online load disaggregation

Keywords： nonintrusive load monitoring (NILM)     load disaggregation     online load disaggregation     Kalman filtering     factorial hidden Markov model (FHMM)     Labeled hIgh-Frequency daTaset for Electricity Disaggregation (LIFTED)    

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Primary assessment of the diversity of Omicron sublineages and the epidemiologic features of autumn/winter

Frontiers of Medicine 2023, Volume 17, Issue 4,   Pages 758-767 doi: 10.1007/s11684-022-0981-7

Abstract: With the recent ongoing autumn/winter 2022 COVID-19 wave and the adjustment of public health control measures, there have been widespread SARS-CoV-2 infections in Chinese mainland. Here we have analyzed 369 viral genomes from recently diagnosed COVID-19 patients in Shanghai, identifying a large number of sublineages of the SARS-CoV-2 Omicron family. Phylogenetic analysis, coupled with contact history tracing, revealed simultaneous community transmission of two Omicron sublineages dominating the infections in some areas of China (BA.5.2 mainly in Guangzhou and Shanghai, and BF.7 mainly in Beijing) and two highly infectious sublineages recently imported from abroad (XBB and BQ.1). Publicly available data from August 31 to November 29, 2022 indicated an overall severe/critical case rate of 0.035% nationwide, while analysis of 5706 symptomatic patients treated at the Shanghai Public Health Center between September 1 and December 26, 2022 showed that 20 cases (0.35%) without comorbidities progressed into severe/critical conditions and 153 cases (2.68%) with COVID-19-exacerbated comorbidities progressed into severe/critical conditions. These observations shall alert healthcare providers to place more resources for the treatment of severe/critical cases. Furthermore, mathematical modeling predicts this autumn/winter wave might pass through major cities in China by the end of the year, whereas some middle and western provinces and rural areas would be hit by the upcoming infection wave in mid-to-late January 2023, and the duration and magnitude of upcoming outbreak could be dramatically enhanced by the extensive travels during the Spring Festival (January 21, 2023). Altogether, these preliminary data highlight the needs to allocate resources to early diagnosis and effective treatment of severe cases and the protection of vulnerable population, especially in the rural areas, to ensure the country’s smooth exit from the ongoing pandemic and accelerate socio-economic recovery.

Keywords： SARS-CoV-2     COVID-19     Omicron     genomic epidemiology    

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Title Author Date Type Operation

Advances in polishing of internal structures on parts made by laser-based powder bed fusion

Journal Article

Pathogen evolution, prevention/control strategy and clinical features of COVID-19: experiences from China

Journal Article

The role of geometrical features in the architectural-structural interaction: Some case studies of the

Maryam ZANDIYEHVAKILI, Isa HOJAT, Mehdi MAHMUDI

Journal Article

Review on environmental policies in China: Evolvement, features, and evaluation

ZHANG Kunmin, WEN Zongguo, PENG Liying

Journal Article

On the Technical Features and Development Trend of Main Battle Tank

Wang Zherong

Journal Article

The clinicopathologic features of intraductal papillary mucinous neoplasms of the pancreas

QIN Xinyu, LIU Fenglin

Journal Article

Symbolic representation based on trend features for knowledge discovery in long time series

Hong YIN,Shu-qiang YANG,Xiao-qian ZHU,Shao-dong MA,Lu-min ZHANG

Journal Article

Diagnosis of sewer pipe defects on image recognition of multi-features and support vector machine in

Xiangyang Ye, Jian’e Zuo, Ruohan Li, Yajiao Wang, Lili Gan, Zhonghan Yu, Xiaoqing Hu

Journal Article

Analysis on the distinguishing features of traditional Chinese therapeutics and related statistical issues

Jingqing Hu, Jie Qiao, Deying Kang, Baoyan Liu

Journal Article

SMRs – overview, international developments, safety features and the GRS simulation chain

Journal Article

Accounting for local features of fouling formation on PHE heat transfer surface

Petro Kapustenko, Jiří J. Klemeš, Olga Arsenyeva, Olexandr Matsegora, Oleksandr Vasilenko

Journal Article

Improving entity linking with two adaptive features

Hongbin ZHANG, Quan CHEN, Weiwen ZHANG

Journal Article

Using heterogeneous patent network features to rank and discover influential inventors

Yong-ping DU,Chang-qing YAO,Nan LI

Journal Article

State identification of home appliance with transient features in residential buildings

Journal Article

Primary assessment of the diversity of Omicron sublineages and the epidemiologic features of autumn/winter

Journal Article