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A Hierarchical-Based Initialization Method for K-Means Algorithm

Tang Jiubin,Lu Jianfeng,Tang Zhenmin, Yang Jingyu

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 74-79

Abstract: style="text-align: justify;">K-means algorithm is one of common clustering algorithms,  but the cluster The initial center of each level is mapped from the clustering center of upper level and this procedure As a result,  the initial center for the original data is obtained.

Keywords： hierarchical technique     initial cluster centers     weighted data     K-means clustering    

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Molecular dynamics simulations of initial Pd and PdO nanocluster growth in a magnetron gas aggregation

Pascal Brault, William Chamorro-Coral, Sotheara Chuon, Amaël Caillard, Jean-Marc Bauchire, Stève Baranton, Christophe Coutanceau, Erik Neyts

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 324-329 doi: 10.1007/s11705-019-1792-5

Abstract: Molecular dynamics simulations are carried out for describing growth of Pd and PdO nanoclusters using the ReaxFF force field. The resulting nanocluster structures are successfully compared to those of nanoclusters experimentally grown in a gas aggregation source. The PdO structure is quasi-crystalline as revealed by high resolution transmission microscope analysis for experimental PdO nanoclusters. The role of the nanocluster temperature in the molecular dynamics simulated growth is highlighted.

Keywords： molecular dynamics     cluster growth     plasma sputtering     nanocatalyst    

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Analysis of the treatment outcomes of esophageal variceal bleeding patients from multiple centers in

WANG Zhiqiang

Frontiers of Medicine 2008, Volume 2, Issue 2,   Pages 171-173 doi: 10.1007/s11684-008-0031-0

Abstract: This study aimed to investigate the treatment outcomes of esophageal variceal bleeding (EVB) in China. A total of 1087 cases were collected from 19 hospitals in 16 large and medium sized cities across China between January 1st, 2005 and January 1st, 2006. There were 313 cases (29.0%) of mild (<400 mL), 494 cases (45.8%) of moderate (400–1500 mL) and 272 cases (25.2%) of severe (>1500 mL) bleeding. Successful hemostasis was achieved in 89.8% of cases. Seven hundred and eighty-five cases were treated by medication with a hemostasis rate of 91.8%. Seventy-one cases were treated using a Sengstaken-Blakemore tube with a hemostasis rate of 54.9%. Thirty-seven cases were treated with emergency endoscopic variceal ligation with a hemostasis rate of 83.8%. Seventy-seven cases were treated with endoscopic sclerotherapy with a hemostasis rate of 94.8%. Forty-three cases were treated with emergency surgical operation with a hemostasis rate of 95.3%. Sixty-six cases were treated with combined therapy with a hemostasis rate of 97.0%. There was a significant difference ( < 0.01) in the successful hemostasis rate between different treatments. The overall mortality was 10.1%, among which 6.6% was directly caused by bleeding. The multivariate logistic regression analysis shows that the severity of bleeding, treatment methods, liver dysfunction and activation of hepatitis were predictive factors for successful hemostasis. Most cases of EVB were mild and moderate in severity. The first-line treatment for EVB is medication. Emergency endoscopic intervention has not been widely available yet. The overall management outcome of EVB has been improved.

Keywords： significant difference     predictive     medication     first-line treatment     bleeding    

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Multi-timescale optimization scheduling of interconnected data centers based on model predictive control

Frontiers in Energy doi: 10.1007/s11708-023-0912-6

Abstract: In this paper, a multi-timescale optimal scheduling model is established for interconnected data centers

Keywords： model predictive control     interconnected data center     multi-timescale     optimized scheduling     distributed power supply     landscape uncertainty    

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Design of tandem genes cluster for isoflavone engineering

Xunli XIA PhD , Guangxiao YANG PhD , Guangyuan HE PhD ,

Frontiers of Medicine 2009, Volume 3, Issue 3,   Pages 292-296 doi: 10.1007/s11684-009-0057-y

Abstract: In this paper, a universal effective novel method of constructing tandem genes cluster for isoflavoneA tandem genes cluster () of secondary metabolites of plant isoflavones was constructed by using the

Keywords： isoflavones engineering     secondary metabolism     tandem genes cluster    

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Understanding high-emitting households in the UK through a cluster analysis

Xinfang WANG, Ming MENG

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 612-625 doi: 10.1007/s11708-019-0647-6

Abstract: It applies a cluster approach, aiming to identify whether the high emitters comprise clusters where householdsin each cluster share similar characteristics but are different from the others.Policymakers should target each high-emitter cluster differently to reduce CO emissions from energy

Keywords： cluster analysis     emissions reduction     energy use     high emitters     household energy consumption     socioeconomic    

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PROGRESS ON IMPROVING AGRICULTURAL NITROGEN USE EFFICIENCY: UK-CHINA VIRTUAL JOINT CENTERS ON NITROGEN

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 475-489 doi: 10.15302/J-FASE-2022459

Abstract:

● Virtual joint centers on N agronomy were established between UK and

Keywords： CINAg     N-CIRCLE     nitrogen use efficiency     reactive nitrogen     sustainable production    

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Scaling up of cluster beam deposition technology for catalysis application

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1360-1379 doi: 10.1007/s11705-021-2101-7

Abstract: Many research works have demonstrated that the combination of atomically precise cluster deposition andtheoretical calculations is able to address fundamental aspects of size-effects, cluster-support interactions, and reaction mechanisms of cluster materials.In this review, we introduce the latest progress on three types of cluster source which have the mostsource, and matrix assembly cluster source.

Keywords： nanoparticle     cluster     cluster beam deposition     magnetron sputtering     heterogeneous catalysis    

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Effect of mulching with maize straw on water infiltration and soil loss at different initial soil moistures

Yifu ZHANG,Hongwen LI,Jin HE,Qingjie WANG,Ying CHEN,Wanzhi CHEN,Shaochun MA

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 2,   Pages 161-170 doi: 10.15302/J-FASE-2016104

Abstract: study investigated the effect of straw mulching on water infiltration and soil loss under different initialIncreasing initial SWC can decrease soil infiltration and increase soil loss.During an 80 mm rainfall event (80 mm·h for 60 min), 8%, 12% and 16% initial SWC treatments decreased42.5% and 58.1%, and increased total sediment yield by 44, 146 and 315 g, respectively, compared to 4% initialFor all initial SWC treatments, straw mulching of 30% or more significantly enhanced water infiltration

Keywords： infiltration     initial soil water content     rainfall simulation     soil loss     straw mulching    

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Evacuation strategies for vertical ship lift during initial fire: Integrated application of stairs and

Shu CHEN, Menghan SHANG, Jianping WANG

Frontiers of Engineering Management 2021, Volume 8, Issue 1,   Pages 135-147 doi: 10.1007/s42524-020-0125-1

Abstract: The proposed model can provide a theoretical reference for evacuation research during initial fire events

Keywords： vertical ship lift     initial fire     fire evacuation     numerical simulation     stair     elevator    

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Fuzzy cluster analysis of tapered roller bearing vibration

Liu Jinjun,Xia Xintao,Zhang Lihong

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 112-117

Abstract:

By using the fuzzy cluster analysis of grey system theory to analysis

Keywords： tapered roller bearing     vibration     fuzzy cluster analysis    

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Initial stiffness and moment resistance of reinforced joint with end-plate connection

Sufang WANG, Yiyi CHEN,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 345-351 doi: 10.1007/s11709-009-0054-x

Abstract: The joint is divided into some basic components, and the initial stiffness of each component is obtainedEspecially, the initial stiffness of reinforced components is drawn by theoretical model and finite elementThe initial stiffness of reinforced joint can be obtained by assembling the initial stiffness of eachcomparison with the results of finite element calculation, it is verified that the method to calculate the initial

Keywords： steel structure     end-plate connection     backing plate     supplementary web plate     initial stiffness     moment resistance    

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Cluster voltage control method for “Whole County” distributed photovoltaics based on improved differential

Frontiers in Energy   Pages 782-795 doi: 10.1007/s11708-023-0905-8

Abstract: To address the problems, this paper proposes a cluster voltage control method for distributed photovoltaicThen, in each cluster, based on the control strategy of “reactive power compensation first, active power

Keywords： distributed photovoltaics (DPVs)     cluster partitioning     improved differential evolution algorithm     voltage    

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Determination of the principal factors of river water quality through cluster analysis method and its

Liang GUO, Ying ZHAO, Peng WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 238-245 doi: 10.1007/s11783-011-0382-7

Abstract: through the analysis of the weight relation between influencing factors and forecasting object using cluster

Keywords： water quality forecast     principal factor     cluster analysis method     artificial neural network    

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A density functional theory study of methane activation on MgO supported NiM cluster: role of M on C–H

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1485-1492 doi: 10.1007/s11705-022-2169-8

Abstract: In present work, methane activation on MgO supported Ni–M (M = Fe, Co, Cu, Pd, Pt) cluster was exploredthrough detailed density functional theory calculations, compared to pure Ni cluster.CH4 adsorption on Cu promoted Ni cluster requires overcoming an energy of 0.07 eV, indicatingDoping elements of the same period in Ni cluster, such as Fe, Co and Cu, for C–H bond activation followsConsequently, C–H bond activation demands a lower energy barrier on Ni–Pt cluster.

Keywords： CH4 dissociation     Ni–M     C–H bond activation     charge transfer    

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Title Author Date Type Operation

A Hierarchical-Based Initialization Method for K-Means Algorithm

Tang Jiubin,Lu Jianfeng,Tang Zhenmin, Yang Jingyu

Journal Article

Molecular dynamics simulations of initial Pd and PdO nanocluster growth in a magnetron gas aggregation

Pascal Brault, William Chamorro-Coral, Sotheara Chuon, Amaël Caillard, Jean-Marc Bauchire, Stève Baranton, Christophe Coutanceau, Erik Neyts

Journal Article

Analysis of the treatment outcomes of esophageal variceal bleeding patients from multiple centers in

WANG Zhiqiang

Journal Article

Multi-timescale optimization scheduling of interconnected data centers based on model predictive control

Journal Article

Design of tandem genes cluster for isoflavone engineering

Xunli XIA PhD , Guangxiao YANG PhD , Guangyuan HE PhD ,

Journal Article

Understanding high-emitting households in the UK through a cluster analysis

Xinfang WANG, Ming MENG

Journal Article

PROGRESS ON IMPROVING AGRICULTURAL NITROGEN USE EFFICIENCY: UK-CHINA VIRTUAL JOINT CENTERS ON NITROGEN

Journal Article

Scaling up of cluster beam deposition technology for catalysis application

Journal Article

Effect of mulching with maize straw on water infiltration and soil loss at different initial soil moistures

Yifu ZHANG,Hongwen LI,Jin HE,Qingjie WANG,Ying CHEN,Wanzhi CHEN,Shaochun MA

Journal Article

Evacuation strategies for vertical ship lift during initial fire: Integrated application of stairs and

Shu CHEN, Menghan SHANG, Jianping WANG

Journal Article

Fuzzy cluster analysis of tapered roller bearing vibration

Liu Jinjun,Xia Xintao,Zhang Lihong

Journal Article

Initial stiffness and moment resistance of reinforced joint with end-plate connection

Sufang WANG, Yiyi CHEN,

Journal Article

Cluster voltage control method for “Whole County” distributed photovoltaics based on improved differential

Journal Article

Determination of the principal factors of river water quality through cluster analysis method and its

Liang GUO, Ying ZHAO, Peng WANG

Journal Article

A density functional theory study of methane activation on MgO supported NiM cluster: role of M on C–H

Journal Article