LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Ihre letzten Suchen

  1. AU="Chen, Du"
  2. AU="Thomas J. LaSalle"
  3. AU=Misra Lopa
  4. AU="Rachel P. L. van Swelm"
  5. AU=Sheik Amamuddy Olivier
  6. AU="Régis Resende Paulinelli"
  7. AU=Saxon Jamie A.
  8. AU="Jarvis, Casey M"
  9. AU="Karki, Sudesha"
  10. AU="Caregnato-Neto, Angelo"
  11. AU=Iwakura Katsuomi
  12. AU="Lin, Shengyun"
  13. AU=Huang Jun
  14. AU="Leng, Jiancai"
  15. AU="Rutgers van der Loeff, Michiel M"
  16. AU="Penak, Bianca"
  17. AU="Shao, Shiliang"
  18. AU="Haro-Barceló, Júlia"
  19. AU="Jian Zeng"
  20. AU="Toyoda, Masanori"
  21. AU=Levine Ross L
  22. AU="Michael N. Antoniou"
  23. AU="Mushtaq, Rabeea"
  24. AU="Elwany Elsnosy"
  25. AU="Bertilacchi, Maria Sofia"
  26. AU="I.C.F.Wong, "
  27. AU="Pootrakul, Llana"
  28. AU="Heydari Beni, Nargess"
  29. AU="Pinter, Emily N"
  30. AU="Hogan, William J"
  31. AU="Tikute, Sanjaykumar"
  32. AU="Lu Shi"
  33. AU="A.Allocca, "
  34. AU="Collinge, Mark"
  35. AU="Fullaondo, Asier"
  36. AU="Yang, Jingrui"

Suchergebnis

Treffer 1 - 10 von insgesamt 139

Suchoptionen

  1. Artikel ; Online: Permeameter and solenoid measurements of Epstein strips of electrical steels.

    Chen, Du-Xing / Zhu, Yong-Hong

    The Review of scientific instruments

    2023  Band 94, Heft 9

    Abstract: The dc and ac flux density vs magnetic field B(H) loops of Epstein electrical strips are measured in an IEC type-A permeameter with a high-quality electrical strip wound double yokes of inside length l0 = 0.2 m and inside height h0 = 0.1 m and in a long ... ...

    Abstract The dc and ac flux density vs magnetic field B(H) loops of Epstein electrical strips are measured in an IEC type-A permeameter with a high-quality electrical strip wound double yokes of inside length l0 = 0.2 m and inside height h0 = 0.1 m and in a long solenoid. The relevant demagnetizing and eddy-current effects are analyzed, modeled, and discussed. It is concluded that demagnetizing corrected solenoid measurement developed for determining dc B(H) loops of the material cannot be used for the ac case, owing to complicated eddy-current demagnetizing effects. Permeameter-measured ac B(H) loops with H detected by a flat H-coil of length less than l0/2 touching the strip's middle surface may be considered representative of the actual material because H is very uniform along the strip within 3l0/4. Strips with ac B(H) loops thus determined should be used to calibrate the effective magnetic path length lm of Epstein measurements, where a very nonuniform field is applied to the strips.
    Sprache Englisch
    Erscheinungsdatum 2023-09-19
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/5.0127524
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  2. Artikel ; Online: Prepositioning network design for humanitarian relief purposes under correlated demand uncertainty.

    Zhang, Xun / Chen, Du

    Computers & industrial engineering

    2023  Band 182, Seite(n) 109365

    Abstract: Prepositioning relief network is an effective strategy to mitigate the impact of natural disasters and public health emergencies, such as the COVID-19 pandemic. However, designing a proper network is challenging due to limited information and, more ... ...

    Abstract Prepositioning relief network is an effective strategy to mitigate the impact of natural disasters and public health emergencies, such as the COVID-19 pandemic. However, designing a proper network is challenging due to limited information and, more importantly, the correlated demand uncertainty that exists among affected areas. We consider a network design problem for humanitarian relief purposes, where demand correlations exist and demand information is limited, i.e., only the mean demand and covariance matrix are known. Note that the covariance matrix can explicitly capture the correlated demand among areas. We formulate this problem as a mixed-integer two-stage distributionally robust location-inventory model, which is generally NP-hard and computationally intractable. The model is further reformulated as a mixed-integer conic problem based on copositive cones, and it is tractable with positive semidefinite relaxation. To accelerate the problem-solving process, we design an interpretable branching-and-pricing heuristic with a warm start. Both semi-case study and simulation results demonstrate that explicitly modelling demand correlation can decrease unmet demand.
    Sprache Englisch
    Erscheinungsdatum 2023-06-14
    Erscheinungsland England
    Dokumenttyp Journal Article
    ISSN 1879-0550
    ISSN (online) 1879-0550
    DOI 10.1016/j.cie.2023.109365
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  3. Artikel ; Online: Characterization of thermal infrared medium- and short-term anomaly information from block to fault in mainland China

    Jingye Zhang / Ke Sun / Chen Du / Junqing Zhu

    Frontiers in Earth Science, Vol

    2023  Band 11

    Abstract: The relationship between satellite thermal infrared anomalies and earthquakes or fault activity has been studied for more than 30 years. In this study, five strong earthquakes (the MS6.1 earthquake in Biru, Tibet; the MS7.4 earthquake in Madoi, Qinghai; ... ...

    Abstract The relationship between satellite thermal infrared anomalies and earthquakes or fault activity has been studied for more than 30 years. In this study, five strong earthquakes (the MS6.1 earthquake in Biru, Tibet; the MS7.4 earthquake in Madoi, Qinghai; the MS6.0 earthquake in Delingha, Qinghai; the MS6.1 earthquake in Lushan, Sichuan; and the MS6.8 earthquake in Luding, Sichuan) that occurred on the western mainland of China over the past 2 years were studied. Based on monthly MODIS land surface temperature (LST) data and daily NOAA satellite longwave radiation data, the departure algorithm and the Robust Satellite Techniques (RST) algorithm were used to extract and analyze the characteristics of thermal infrared anomaly information for blocks and faults around the earthquake from different temporal and spatial scales. The results showed the following: 1) In the medium-term scale study based on monthly data, blocks near the epicenters of five earthquakes showed temperature increase anomalies of 1–6 months before the earthquakes; the areas of temperature increase anomalies were clearly controlled by the spatial distribution of the blocks, and earthquakes mostly occurred within blocks with frequent temperature increase anomalies. 2) In the short-term, thermal infrared anomaly feature tracking based on daily data meant that obvious thermal anomalies were also found. The thermal anomalies before the five seismic events all appeared within a period of 3 months before the earthquake, and there were multiple consecutive days of anomalies. The significant temperature increases generally occurred a month before the earthquake, and the distribution of the anomalies was mostly in the form of strips, which is basically consistent with the trend of the fault zone. The use of thermal infrared remote sensing data to summarize the dynamic evolution of thermal infrared anomalies of blocks and faults before strong earthquakes can provide a basis for the long-term monitoring of fault activity and seismic monitoring by satellite ...
    Schlagwörter thermal infrared remote sensing ; tectogenesis ; earthquake ; thermal anomaly ; spatio-temporal correlation analysis ; Science ; Q
    Thema/Rubrik (Code) 550
    Sprache Englisch
    Erscheinungsdatum 2023-06-01T00:00:00Z
    Verlag Frontiers Media S.A.
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Zusatzmaterialien

    Kategorien

  4. Artikel ; Online: Effective magnetic path length in Epstein frame test of electrical steels.

    Chen, Du-Xing / Zhu, Yong-Hong

    The Review of scientific instruments

    2022  Band 93, Heft 5, Seite(n) 55105

    Abstract: The effective magnetic path length ... ...

    Abstract The effective magnetic path length l
    Sprache Englisch
    Erscheinungsdatum 2022-05-09
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/5.0084859
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  5. Artikel ; Online: The Effects of Acute Sleep Curtailment on Salt Taste Measures and Relationships with Energy-Corrected Sodium Intake

    Chen Du / Russell Keast / Sze-Yen Tan / Robin M. Tucker

    International Journal of Environmental Research and Public Health, Vol 20, Iss 4140, p

    A Randomized Cross-Over Trial with Methodology Validation

    2023  Band 4140

    Abstract: 1) Background: Sleep may be a factor that influences the taste–dietary intake relationship. The effect of sleep on salt taste measures has not been adequately studied, and no standardized methodology has been developed for measuring salt taste ... ...

    Abstract (1) Background: Sleep may be a factor that influences the taste–dietary intake relationship. The effect of sleep on salt taste measures has not been adequately studied, and no standardized methodology has been developed for measuring salt taste preference. (2) Methods: A sweet taste forced-choice paired-comparison test was adapted and validated to determine salt taste preference. In a randomized cross-over trial, participants slept a curtailed night (33% reduction in sleep duration) and a habitual night, confirmed by a single-channel electroencephalograph. Salt taste tests were conducted the day after each sleep condition using five aqueous NaCl solutions. One 24-h dietary recall was obtained after each taste test. (3) Results: The adapted forced-choice paired-comparison tracking test reliably determined salt taste preference. No changes in salt taste function (intensity slopes: p = 0.844) or hedonic measures (liking slopes: p = 0.074; preferred NaCl concentrations: p = 0.092) were observed after the curtailed sleep condition compared to habitual sleep. However, sleep curtailment disrupted the association between liking slope and energy-corrected Na intake ( p < 0.001). (4) Conclusions: The present study serves as the first step toward more standardized taste assessments to facilitate comparison between studies and suggests accounting for sleep when exploring taste–diet relationships.
    Schlagwörter salt taste ; intensity ; preference ; salt-liking phenotype ; diet ; sleep ; Medicine ; R
    Sprache Englisch
    Erscheinungsdatum 2023-02-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Zusatzmaterialien

    Kategorien

  6. Artikel ; Online: Optical spectroscopic detection of Schottky barrier height at a two-dimensional transition-metal dichalcogenide/metal interface.

    Chen, Du / Anantharaman, Surendra B / Wu, Jinyuan / Qiu, Diana Y / Jariwala, Deep / Guo, Peijun

    Nanoscale

    2024  Band 16, Heft 10, Seite(n) 5169–5176

    Abstract: Atomically thin two-dimensional transition-metal dichalcogenides (2D-TMDs) have emerged as semiconductors for next-generation nanoelectronics. As 2D-TMD-based devices typically utilize metals as the contacts, it is crucial to understand the properties of ...

    Abstract Atomically thin two-dimensional transition-metal dichalcogenides (2D-TMDs) have emerged as semiconductors for next-generation nanoelectronics. As 2D-TMD-based devices typically utilize metals as the contacts, it is crucial to understand the properties of the 2D-TMD/metal interface, including the characteristics of the Schottky barriers formed at the semiconductor-metal junction. Conventional methods for investigating the Schottky barrier height (SBH) at these interfaces predominantly rely on contact-based electrical measurements with complex gating structures. In this study, we introduce an all-optical approach for non-contact measurement of the SBH, utilizing high-quality WS
    Sprache Englisch
    Erscheinungsdatum 2024-03-07
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/d3nr05799b
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  7. Artikel ; Online: Precise tooth design using deep learning-based templates.

    Chen, Du / Yu, Mei-Qi / Li, Qi-Jing / He, Xiang / Liu, Fei / Shen, Jie-Fei

    Journal of dentistry

    2024  Band 144, Seite(n) 104971

    Abstract: Objectives: In prosthodontic procedures, traditional computer-aided design (CAD) is often time-consuming and lacks accuracy in shape restoration. In this study, we combined implicit template and deep learning (DL) to construct a precise neural network ... ...

    Abstract Objectives: In prosthodontic procedures, traditional computer-aided design (CAD) is often time-consuming and lacks accuracy in shape restoration. In this study, we combined implicit template and deep learning (DL) to construct a precise neural network for personalized tooth defect restoration.
    Methods: Ninety models of right maxillary central incisor (80 for training, 10 for validation) were collected. A DL model named ToothDIT was trained to establish an implicit template and a neural network capable of predicting unique identifications. In the validation stage, teeth in validation set were processed into corner, incisive, and medium defects. The defective teeth were inputted into ToothDIT to predict the unique identification, which actuated the deformation of the implicit template to generate the highly customized template (DIT) for the target tooth. Morphological restorations were executed with templates from template shape library (TSL), average tooth template (ATT), and DIT in Exocad (GmbH, Germany). RMS
    Results: DIT displayed significantly smaller RMS
    Conclusion: The proposed DL model successfully reconstructed the morphology of anterior teeth with various degrees of defects and achieved satisfactory accuracy. This approach provides a more reliable reference for prostheses design, resulting in enhanced accuracy in morphological restoration.
    Clinical significance: This DL model holds promise in assisting dentists and technicians in obtaining morphology templates that closely resemble the original shape of the defective teeth. These customized templates serve as a foundation for enhancing the efficiency and precision of digital restorative design for defective teeth.
    Mesh-Begriff(e) Humans ; Deep Learning ; Computer-Aided Design ; Incisor/anatomy & histology ; Neural Networks, Computer ; Dental Prosthesis Design/methods ; Models, Dental ; Maxilla/anatomy & histology
    Sprache Englisch
    Erscheinungsdatum 2024-03-26
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 186068-9
    ISSN 1879-176X ; 0300-5712
    ISSN (online) 1879-176X
    ISSN 0300-5712
    DOI 10.1016/j.jdent.2024.104971
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  8. Artikel ; Online: Influence of intraoral scanning coverage on the accuracy of digital implant impressions - An in vitro study.

    Wang, Zhen-Yu / Gong, Yu / Liu, Fei / Chen, Du / Zheng, Jia-Wen / Shen, Jie-Fei

    Journal of dentistry

    2024  Band 143, Seite(n) 104929

    Abstract: Objectives: To evaluate the influence of intraoral scanning coverage (IOSC) on digital implant impression accuracy in various partially edentulous situations and predict the optimal IOSC.: Methods: Five types of resin models were fabricated, each ... ...

    Abstract Objectives: To evaluate the influence of intraoral scanning coverage (IOSC) on digital implant impression accuracy in various partially edentulous situations and predict the optimal IOSC.
    Methods: Five types of resin models were fabricated, each simulating single or multiple tooth loss scenarios with inserted implants and scan bodies. IOSC was subgrouped to cover two, four, six, eight, ten, and twelve teeth, as well as full arch. Each group underwent ten scans. A desktop scanner served as the reference. Accuracy was evaluated by measuring the Root mean square error (RMSE) values of scan bodies. A convolutional neural network (CNN) was trained to predict the optimal IOSC with different edentulous situations. Statistical analysis was performed using one-way ANOVA and Tukey's test.
    Results: For single-tooth-missing situations, in anterior sites, significantly better accuracy was observed in groups with IOSC ranging from four teeth to full arch (p < 0.05). In premolar sites, IOSC spanning four to six teeth were more accurate (p < 0.05), while in molar sites, groups with IOSC encompassing two to eight teeth exhibited better accuracy (p < 0.05). For multiple-teeth-missing situations, IOSC covering four, six, and eight teeth, as well as full arch showed better accuracy in anterior gaps (p < 0.05). In posterior gaps, IOSC of two, four, six or eight teeth were more accurate (p < 0.05). The CNN predicted distinct optimal IOSC for different edentulous scenarios.
    Conclusions: Implant impression accuracy can be significantly impacted by IOSC in different partially edentulous situations. The selection of IOSC should be customized to the specific dentition defect condition.
    Clinical significance: The number of teeth scanned can significantly affect digital implant impression accuracy. For missing single or four anterior teeth, scan at least four or six neighboring teeth is acceptable. In lateral cases, two neighboring teeth may suffice, but extending over ten teeth, including contralateral side, might deteriorate the scan.
    Mesh-Begriff(e) Humans ; Imaging, Three-Dimensional ; Dental Impression Technique ; Models, Dental ; Dental Impression Materials ; Mouth, Edentulous ; Tooth Loss ; Dental Implants ; Computer-Aided Design
    Chemische Substanzen Dental Impression Materials ; Dental Implants
    Sprache Englisch
    Erscheinungsdatum 2024-03-06
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 186068-9
    ISSN 1879-176X ; 0300-5712
    ISSN (online) 1879-176X
    ISSN 0300-5712
    DOI 10.1016/j.jdent.2024.104929
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  9. Artikel ; Online: Triflylpyridinium as Coupling Reagent for Rapid Amide and Ester Synthesis.

    Chen, Du / Xu, Liangxuan / Ren, Bowen / Wang, Zian / Liu, Chao

    Organic letters

    2023  Band 25, Heft 24, Seite(n) 4571–4575

    Abstract: An effective method has been developed to facilitate the synthesis of amides and esters at ambient temperature within 5 min, in which a stable and easily accessible triflylpyridinium reagent is used. Remarkably, this method not only has a wide range of ... ...

    Abstract An effective method has been developed to facilitate the synthesis of amides and esters at ambient temperature within 5 min, in which a stable and easily accessible triflylpyridinium reagent is used. Remarkably, this method not only has a wide range of substrate compatibility but also could realize the scalable synthesis of peptide and ester via a continuous flow process. Moreover, excellent chirality retentions are presented during activation of carboxylic acid.
    Mesh-Begriff(e) Amides ; Esters ; Peptides ; Carboxylic Acids
    Chemische Substanzen Amides ; Esters ; Peptides ; Carboxylic Acids
    Sprache Englisch
    Erscheinungsdatum 2023-06-08
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1523-7052
    ISSN (online) 1523-7052
    DOI 10.1021/acs.orglett.3c01598
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  10. Artikel ; Online: Tailoring Fe

    Chen, Du / Hu, Xiaohong / Chen, Chaohuang / Lin, Daohui / Xu, Jiang

    Environmental science & technology

    2023  Band 57, Heft 45, Seite(n) 17178–17188

    Abstract: Lattice engineering of nanomaterials holds promise in simultaneously regulating their geometric and electronic effects to promote their performance. However, local microenvironment engineering of ... ...

    Abstract Lattice engineering of nanomaterials holds promise in simultaneously regulating their geometric and electronic effects to promote their performance. However, local microenvironment engineering of Fe
    Mesh-Begriff(e) Nanoparticles/chemistry ; Environmental Restoration and Remediation ; Nanostructures
    Sprache Englisch
    Erscheinungsdatum 2023-10-30
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/acs.est.3c05129
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

Zum Seitenanfang