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  1. Buch ; Online ; E-Book: Climate change in Southeast Asia and surrounding areas

    Yang, Song

    (Springer climate)

    2021  

    Abstract: This book is mainly focused on the climate change in Southeast Asia and its adjacent regions. It summarizes results from recent scientific research based on observational analysis, data diagnosis, theoretical analysis, and model simulations. The book ... ...

    Verfasserangabe Song Yang [and six others]
    Serientitel Springer climate
    Abstract This book is mainly focused on the climate change in Southeast Asia and its adjacent regions. It summarizes results from recent scientific research based on observational analysis, data diagnosis, theoretical analysis, and model simulations. The book covers the following research areas: (1) characteristics and mechanisms of spring–summer atmospheric circulation systems, (2) ocean-atmosphere-land interaction and climate variability, (3) climate effect of the Tibetan Plateau, (4) attribution of regional climate change and feedback/impact of regional climate on the global climate, and (5) seasonal-to-subseasonal climate prediction. It is anticipated that the book provides useful information for enhancing our understanding of the change in climate over Southeast Asia and the adjacent regions.
    Schlagwörter Climatic changes
    Thema/Rubrik (Code) 363.738740959
    Sprache Englisch
    Umfang 1 online resource (XII, 420 p. 260 illus., 229 illus. in color.)
    Ausgabenhinweis 1st ed. 2021.
    Verlag Science Press ; Springer
    Erscheinungsort Beijing ; Singapore
    Dokumenttyp Buch ; Online ; E-Book
    Anmerkung In English.
    Bemerkung Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    ISBN 981-15-8225-4 ; 981-15-8224-6 ; 978-981-15-8225-7 ; 978-981-15-8224-0
    DOI 10.1007/978-981-15-8225-7
    Datenquelle ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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  2. Artikel ; Online: Algal bloom prevention

    Yang Song

    Global Ecology and Conservation, Vol 46, Iss , Pp e02608- (2023)

    Noteworthy public education

    2023  

    Abstract: As global warming and human activities continue, algal blooms are becoming more frequent and severe. Based on the fact that even the best technical measures cannot directly reduce nutrient production caused by human activities, the author argues that ... ...

    Abstract As global warming and human activities continue, algal blooms are becoming more frequent and severe. Based on the fact that even the best technical measures cannot directly reduce nutrient production caused by human activities, the author argues that promoting public education as a pre-treatment measure is more efficient and fundamental than relying solely on post-treatment social reports and engineering restoration techniques. This study aims to increase awareness among countries worldwide about the critical role of public education and engagement in preventing algal blooms. This is particularly important given the projected increase in population, as well as the uncertainties surrounding climate and the environment in the future.
    Schlagwörter Phytoplankton bloom ; Toxin ; Control measure ; Nutrient reduction ; Eutrophication ; Climate change ; Ecology ; QH540-549.5
    Sprache Englisch
    Erscheinungsdatum 2023-10-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Research and application of large-scale fracturing imitating horizontal well technology in vertical well

    Yang Song

    E3S Web of Conferences, Vol 352, p

    2022  Band 01082

    Abstract: Hailaer Basin is rich in geological reserves, but the proportion of undeveloped reserves is high, accounting for 30% of the proved reserves. In order to improve the production degree of reserves and single well production, and realize the purpose of high ...

    Abstract Hailaer Basin is rich in geological reserves, but the proportion of undeveloped reserves is high, accounting for 30% of the proved reserves. In order to improve the production degree of reserves and single well production, and realize the purpose of high and stable production of the oilfield. Taking the ultra-low permeability reservoir of oilfield B in Hailaer Basin as an example, this paper puts forward the large-scale fracturing of vertical wells and water injection development technology of imitating horizontal wells. By forming directional ultra long fracturing fractures in the oil layer, this technology can effectively increase the reservoir conductivity, increase the oil well drainage area and water well control area, reduce the well pattern density and improve the production of single well. The research shows that the undeveloped reserves in Hailaer oilfield have the characteristics of low thickness, low permeability and low reservoir quality index. There are 55 large-scale mold fracturing wells in Hailaer oilfield, with an initial oil increase of 2.2 times. The sand amount of large-scale fracturing is 2.5 times that of ordinary fracturing, and the fluid amount and sand intensity are 4.5 times that of conventional fracturing. The vertical well large-scale fracturing imitating horizontal well technology is adopted in Oilfield B. The designed vertical well fracturing fracture is 600m long and 120m wide, and the production effect is good after fracturing. The research results are of great significance to the high and stable production of undeveloped reserves block in Hailaer oilfield and other similar oilfields.
    Schlagwörter ultra-low permeable reservoir ; starting pressure gradient ; large-scale fracturing ; imitation horizontal well ; Environmental sciences ; GE1-350
    Thema/Rubrik (Code) 550
    Sprache Englisch
    Erscheinungsdatum 2022-01-01T00:00:00Z
    Verlag EDP Sciences
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel: Are private equity and venture capital helping small and medium-sized enterprises during the COVID-19 pandemic? Evidence from China.

    Yang, Song

    Economic analysis and policy

    2022  Band 76, Seite(n) 1–14

    Abstract: The rapid spread of COVID-19 worldwide since 2020 has, undeniably, negatively influenced the global economy and environment. Small and medium-sized enterprises (SMEs) are among the worst-hit victims of COVID-19, particularly in developing countries. As ... ...

    Abstract The rapid spread of COVID-19 worldwide since 2020 has, undeniably, negatively influenced the global economy and environment. Small and medium-sized enterprises (SMEs) are among the worst-hit victims of COVID-19, particularly in developing countries. As primary channels financing SMEs, what roles have private equity and venture capital (PE/VC) played in this crisis? Using the 2010-2021 data of 4462 listed companies, we aimed to assess the impact of PE/VC on financial risk among Chinese SMEs. We constructed a capital structure selection model to assess the risk preference of PE/VC and explored the roles of PE/VC in the financial risk management of enterprises during COVID-19. Based on both theory and empirical evidence, PE/VC negatively impacts the financial risk of enterprises, implying that intervention by the management of PE/VC can aggravate the financial risk. However, in reality, PE/VC positively impacted enterprise financial risk during COVID-19. Thus, the government should implement some easing policies to stimulate access and investment policies of PE/VC as well as provide more practical policies to support investment institutions in China and other counties.
    Sprache Englisch
    Erscheinungsdatum 2022-07-28
    Erscheinungsland Australia
    Dokumenttyp Journal Article
    ZDB-ID 2439247-9
    ISSN 0313-5926
    ISSN 0313-5926
    DOI 10.1016/j.eap.2022.07.007
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Research on Innovation of Financial Management Model Based on Cloud Computing

    yang Song

    E3S Web of Conferences, Vol 214, p

    2020  Band 03037

    Abstract: Against the background of the rapid development of big data and big data analysis technologies, cloud computing service providers provide services to enterprises and individuals. In many large enterprises, by setting up a cloud computing platform ... ...

    Abstract Against the background of the rapid development of big data and big data analysis technologies, cloud computing service providers provide services to enterprises and individuals. In many large enterprises, by setting up a cloud computing platform environment, multiple services within the enterprise are placed on the cloud platform to provide resource sharing services for various departments. With the dramatic improvement in computing performance of computer clusters, big data and cloud computing technologies are maturing. We combine cloud computing with financial management services, and use modern technical means to innovate financial management models; we will change the financial management model of enterprises by building financial sharing service centers, thereby providing more efficient financial management services. Based on the research of cloud computing technology, this paper expounds the application of cloud computing in financial sharing, and explores the transformation of financial management models in the context of cloud computing. Fully clarify the principles and procedures for the construction of financial sharing service centers based on cloud computing, and discuss the basic structure of financial cloud management. Finally, we discuss the operation model of financial management based on cloud computing to provide a reference for researchers in financial management.
    Schlagwörter Environmental sciences ; GE1-350
    Thema/Rubrik (Code) 020
    Sprache Englisch
    Erscheinungsdatum 2020-01-01T00:00:00Z
    Verlag EDP Sciences
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel ; Online: Collaborative prediction of web service quality based on user preferences and services.

    Yang Song

    PLoS ONE, Vol 15, Iss 12, p e

    2020  Band 0242089

    Abstract: The prediction of web service quality plays an important role in improving user services; it has been one of the most popular topics in the field of Internet services. In traditional collaborative filtering methods, differences in the personalization and ...

    Abstract The prediction of web service quality plays an important role in improving user services; it has been one of the most popular topics in the field of Internet services. In traditional collaborative filtering methods, differences in the personalization and preferences of different users have been ignored. In this paper, we propose a prediction method for web service quality based on different types of quality of service (QoS) attributes. Different extraction rules are applied to extract the user preference matrices from the original web data, and the negative value filtering-based top-K method is used to merge the optimization results into the collaborative prediction method. Thus, the individualized differences are fully exploited, and the problem of inconsistent QoS values is resolved. The experimental results demonstrate the validity of the proposed method. Compared with other methods, the proposed method performs better, and the results are closer to the real values.
    Schlagwörter Medicine ; R ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2020-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Artikel ; Online: Switching Go

    Yang, Song / Song, Chen

    Journal of chemical theory and computation

    2024  Band 20, Heft 6, Seite(n) 2618–2629

    Abstract: Proteins are dynamic biomolecules that can transform between different conformational states when exerting physiological functions, which is difficult to simulate using all-atom methods. Coarse-grained (CG) Go̅-like models are widely used to investigate ... ...

    Abstract Proteins are dynamic biomolecules that can transform between different conformational states when exerting physiological functions, which is difficult to simulate using all-atom methods. Coarse-grained (CG) Go̅-like models are widely used to investigate large-scale conformational transitions, which usually adopt implicit solvent models and therefore cannot explicitly capture the interaction between proteins and surrounding molecules, such as water and lipid molecules. Here, we present a new method, named
    Mesh-Begriff(e) Molecular Dynamics Simulation ; Protein Conformation ; Proteins/chemistry ; Solvents/chemistry ; Lipids
    Chemische Substanzen Proteins ; Solvents ; Lipids
    Sprache Englisch
    Erscheinungsdatum 2024-03-06
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1549-9626
    ISSN (online) 1549-9626
    DOI 10.1021/acs.jctc.3c01222
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  8. Artikel ; Online: Dynamic tensile viscoelastic properties of porcine periodontal ligament.

    Yang, Song / Zhao, Qiuxu

    European journal of oral sciences

    2024  , Seite(n) e12984

    Abstract: The periodontal ligament plays a significant role in orthodontic and masticatory processes. To explicitly investigate the effects of dynamic force amplitude and frequency on the dynamic tensile properties of the periodontal ligament, in vitro tensile ... ...

    Abstract The periodontal ligament plays a significant role in orthodontic and masticatory processes. To explicitly investigate the effects of dynamic force amplitude and frequency on the dynamic tensile properties of the periodontal ligament, in vitro tensile experiments were conducted using a dynamic mechanical analysis at various dynamic force amplitudes across a wide frequency range. Storage modulus, loss modulus, and loss factor values were measured. A Maxwell constitutive model based on modulus was established to describe the dynamic mechanical properties of the periodontal ligament. The results showed that the storage modulus ranged from 29.53 MPa to 158.24 MPa, the loss modulus ranged from 3.26 MPa to 76.16 MPa, and the loss factor values all increased with higher frequencies and higher dynamic force amplitudes. Based on the parameters obtained from the fitting results, it is evident that the short-term response has a more pronounced impact on the elastic response of the periodontal ligament than the long-term response. Increasing the dynamic force amplitude and its frequency amplified the viscous effects of the periodontal ligament and enhanced energy dissipation. The proposed constitutive model further demonstrated that the periodontal ligament acts as a viscoelastic biomaterial. These findings have implications for future research on the periodontal ligament.
    Sprache Englisch
    Erscheinungsdatum 2024-05-19
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1224820-4
    ISSN 1600-0722 ; 0909-8836
    ISSN (online) 1600-0722
    ISSN 0909-8836
    DOI 10.1111/eos.12984
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Verfügbar in ZB MED Köln/Königswinter

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  9. Artikel ; Online: Efficacy and safety of different doses of ropivacaine + sufentanil for epidural labor analgesia

    Yang Song

    Journal of Hainan Medical University, Vol 24, Iss 20, Pp 36-

    2018  Band 39

    Abstract: Objective: To study the efficacy and safety of different doses of ropivacaine and sufentanil for epidural labor analgesia. Methods: The primiparae with single birth and cephalic presentation who underwent vaginal delivery in Chengde Maternal and Child ... ...

    Abstract Objective: To study the efficacy and safety of different doses of ropivacaine and sufentanil for epidural labor analgesia. Methods: The primiparae with single birth and cephalic presentation who underwent vaginal delivery in Chengde Maternal and Child Health Hospital between March 2015 and February 2018 were selected and randomly divided into the group A who received subarachnoid injection of sufentanil 4 μg, the group B who received injection of sufentanil 4 μg + ropivacaine 2 mg and the group C who received injection of sufentanil 4 μg + ropivacaine 3 mg. During childbirth, serum was collected at the first, second and third stages of labor respectively to detect the secretion of pain mediators and oxidative stress mediators; after childbirth, the placenta was collected to determine the expression of stress molecules. Results: At first, second and third stages of labor, serum SP, DYN, NE, PGE2, TNF-毩, COR, AT-II and MDA secretion of group B and group C were significantly lower than those of group A whereas SOD and GSH-Px secretion were significantly higher than those of group A, and serum SP, DYN, NE, PGE2, TNF-毩, COR, AT-II and MDA secretion of group C were significantly lower than those of group B whereas SOD and GSH-Px secretion were significantly higher than those of group B; after childbirth, GRP78, CHOP, Bax and Caspase-3 mRNA expression in placenta of group B and group C were significantly lower than those of group A whereas Bcl-2 mRNA expression were significantly higher than that of group A, and GRP78, CHOP, Bax and Caspase-3 mRNA expression in placenta of group C were significantly lower than those of group B whereas Bcl-2 mRNA expression was significantly higher than that of group B. Conclusion: The analgesic effect of sufentanil 4 μg + ropivacaine 3 mg for epidural labor analgesia is the most significant.
    Schlagwörter Labor analgesia ; Ropivacaine ; Sufentanil ; Pain mediator ; Oxidative stress ; Medicine ; R
    Sprache Englisch
    Erscheinungsdatum 2018-10-01T00:00:00Z
    Verlag Editorial Board of Journal of Hainan Medical University
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  10. Artikel ; Online: Effect of Zinc Oxide Incorporation on the Antibacterial, Physicochemical, and Mechanical Properties of Pit and Fissure Sealants.

    Choi, Ji-Won / Yang, Song-Yi

    Polymers

    2023  Band 15, Heft 3

    Abstract: This study aimed to evaluate the antibacterial, physicochemical, and mechanical properties of pit and fissure sealants containing different weight percentages of zinc oxide nanoparticles (ZnO NPs). The following amounts of ZnO NPs were added to a ... ...

    Abstract This study aimed to evaluate the antibacterial, physicochemical, and mechanical properties of pit and fissure sealants containing different weight percentages of zinc oxide nanoparticles (ZnO NPs). The following amounts of ZnO NPs were added to a commercially available pit and fissure sealant (BeautiSealant, Shofu, Japan) to prepare the experimental materials: 0 wt.% (commercial control (CC)), 0.5 wt.% (ZnO 0.5), 1 wt.% (ZnO 1.0), 2 wt.% (ZnO 2.0), and 4 wt.% (ZnO 4.0). The antibacterial effect against
    Sprache Englisch
    Erscheinungsdatum 2023-01-19
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym15030529
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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