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  1. Article: Use of passive acoustic monitoring to document the distribution of the Indo‐Pacific finless porpoise in the south‐east region of Pearl River estuary, China: Implications for conservation and management

    Fang, Liang / Wang, Xinxing / Li, Min / Chen, Yujian / Wang, Yuezhong / Chen, Tao

    Aquatic conservation. 2022 Sept., v. 32, no. 9

    2022  

    Abstract: The Pearl River estuary in Guangdong is home to the Indo‐Pacific humpback dolphin (Sousa chinensis) and the Indo‐Pacific finless porpoise (Neophocaena phocaenoides). However, limited data are available for the latter species. Line‐transect passive ... ...

    Abstract The Pearl River estuary in Guangdong is home to the Indo‐Pacific humpback dolphin (Sousa chinensis) and the Indo‐Pacific finless porpoise (Neophocaena phocaenoides). However, limited data are available for the latter species. Line‐transect passive acoustic monitoring surveys were conducted to investigate the distribution of the Indo‐Pacific finless porpoise in the Pearl River estuary in the period July to November 2019. The south‐east region of the Pearl River estuary is an important habitat for the Indo‐Pacific finless porpoise, and more than half of the acoustic detections were within 2 km of islands, concentrated around the uninhabited islands of Soko, Sanmen and Aizhou. The habitat extents of Indo‐Pacific finless porpoises in the survey areas were estimated as 209.04, 761.81 and 976.41 km² using 50, 90 and 95% kernel densities, respectively. The 50% kernel density area was mainly around the aforementioned islands and is a priority candidate for protected area status. This is the first report of the distribution and critical habitat of the finless porpoise in the study area. Given the increasing human development in the Pearl River estuary, the results provide important data to help inform the protection of the habitat of finless porpoise in the context of marine planning and development, and promote the establishment of marine protected areas and stronger fisheries management measures.
    Keywords Neophocaena phocaenoides ; Sousa chinensis ; acoustics ; conservation areas ; dolphins ; estuaries ; habitats ; human development ; rivers ; surveys ; China
    Language English
    Dates of publication 2022-09
    Size p. 1428-1436.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1146285-1
    ISSN 1052-7613
    ISSN 1052-7613
    DOI 10.1002/aqc.3864
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Application of Nano-Crystalline Diamond in Tribology.

    Xia, Yue / Lu, Yunxiang / Yang, Guoyong / Chen, Chengke / Hu, Xiaojun / Song, Hui / Deng, Lifen / Wang, Yuezhong / Yi, Jian / Wang, Bo

    Materials (Basel, Switzerland)

    2023  Volume 16, Issue 7

    Abstract: Nano-crystalline diamond has been extensively researched and applied in the fields of tribology, optics, quantum information and biomedicine. In virtue of its hardness, the highest in natural materials, diamond outperforms the other materials in terms of ...

    Abstract Nano-crystalline diamond has been extensively researched and applied in the fields of tribology, optics, quantum information and biomedicine. In virtue of its hardness, the highest in natural materials, diamond outperforms the other materials in terms of wear resistance. Compared to traditional single-crystalline and poly-crystalline diamonds, nano-crystalline diamond consists of disordered grains and thus possesses good toughness and self-sharpening. These merits render nano-crystalline diamonds to have great potential in tribology. Moreover, the re-nucleation of nano-crystalline diamond during preparation is beneficial to decreasing surface roughness due to its ultrafine grain size. Nano-crystalline diamond coatings can have a friction coefficient as low as single-crystal diamonds. This article briefly introduces the approaches to preparing nano-crystalline diamond materials and summarizes their applications in the field of tribology. Firstly, nano-crystalline diamond powders can be used as additives in both oil- and water-based lubricants to significantly enhance their anti-wear property. Nano-crystalline diamond coatings can also act as self-lubricating films when they are deposited on different substrates, exhibiting excellent performance in friction reduction and wear resistance. In addition, the research works related to the tribological applications of nano-crystalline diamond composites have also been reviewed in this paper.
    Language English
    Publishing date 2023-03-28
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma16072710
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Effects of Climate Events on Abundance and Distribution of Major Commercial Fishes in the Beibu Gulf, South China Sea

    Hong, Xiaofan / Zhang, Kui / Li, Jiajun / Xu, Youwei / Sun, Mingshuai / Wang, Yuezhong / Xu, Shannan / Cai, Yancong / Qiu, Yongsong / Chen, Zuozhi

    Diversity. 2023 May 10, v. 15, no. 5

    2023  

    Abstract: Improving prediction of ecological responses to climate variability requires understanding how local fish population dynamics are impacted by climate events. The present study was conducted in the Beibu Gulf of the northwestern South China Sea where the ... ...

    Abstract Improving prediction of ecological responses to climate variability requires understanding how local fish population dynamics are impacted by climate events. The present study was conducted in the Beibu Gulf of the northwestern South China Sea where the fisheries are characterized by high ecological and commercial value. We evaluated the relationship between major commercial fish population dynamics (abundance and distribution) and climate periods, using survey data from 2006–2020. The analysis using random forest and GAM models show that climate events are not the best predictors for the variations of fish abundance, because abundance of most fish stocks decreases significantly with the year, and the increasing fishing pressure over time can better explain the overall downward trend in fishery stocks. However, environmental variables that correlate significantly with interannual variation in ONI may impact fish abundance in short terms. Our research suggests that climate events leading to higher surface seawater salinity in winter favors pelagic fishes by improving habitat availability, and higher near-surface chlorophyll-α concentration during La Niña events provides better food condition for overwintering fish. In addition, there is no clear evidence that climatic events have a significant impact on gravity center of fish distribution, whereas climate change has caused most fishes to move to cooler coastal waters in the north.
    Keywords La Nina ; climate ; climate change ; fish ; fish communities ; fisheries ; gravity ; habitats ; overwintering ; population dynamics ; prediction ; salinity ; seawater ; surveys ; South China Sea
    Language English
    Dates of publication 2023-0510
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2518137-3
    ISSN 1424-2818
    ISSN 1424-2818
    DOI 10.3390/d15050649
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Chemical Vapor Deposition of <110> Textured Diamond Film through Pre-Seeding by Diamond Nano-Sheets

    Yang, Guoyong / Lu, Yunxiang / Wang, Bo / Xia, Yue / Chen, Huanyi / Song, Hui / Yi, Jian / Deng, Lifen / Wang, Yuezhong / Li, He

    Materials (Basel, Switzerland)

    2022  Volume 15, Issue 21

    Abstract: Diamond films prepared by chemical vapor deposition will exhibit different surface morphologies, which are determined by the texture and the structural perfection of the deposited diamond. In general, its surface morphology can be controlled by adjusting ...

    Abstract Diamond films prepared by chemical vapor deposition will exhibit different surface morphologies, which are determined by the texture and the structural perfection of the deposited diamond. In general, its surface morphology can be controlled by adjusting the deposition conditions. In the present work, <110> textured diamond film was deposited on single crystalline silicon through pre-seeding by diamond nanosheets, rather than controlling the deposition conditions. The employed diamond nano-sheets were prepared by cleavage along a plane, exhibiting good crystallinity. Before chemical vapor deposition, the as-prepared diamond nano-sheets were pre-seeded on the surface of single crystalline silicon as nucleation sites for diamond growth. SEM and XRD results show that the prepared diamond films have a <110> texture. FIB observation reveals that diamonds homogeneously grow on the pre-seeded diamond nano-sheets during chemical vapor deposition, achieving the diamond film with <110> texture. Our work provides a new strategy to prepare <110> textured diamond film.
    Language English
    Publishing date 2022-11-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma15217776
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Optical Properties of Bulk Single-Crystal Diamonds at 80-1200 K by Vibrational Spectroscopic Methods.

    Shi, Zitao / Yuan, Qilong / Wang, Yuezhong / Nishimura, Kazuhito / Yang, Guojian / Zhang, Bingxue / Jiang, Nan / Li, He

    Materials (Basel, Switzerland)

    2021  Volume 14, Issue 23

    Abstract: Bulk diamonds show great potential for optical applications such as for use in infrared (IR) windows and temperature sensors. The development of optical-grade bulk diamond synthesis techniques has facilitated its extreme applications. Here, two kinds of ... ...

    Abstract Bulk diamonds show great potential for optical applications such as for use in infrared (IR) windows and temperature sensors. The development of optical-grade bulk diamond synthesis techniques has facilitated its extreme applications. Here, two kinds of bulk single-crystal diamonds, a high-pressure and high-temperature (HPHT) diamond and a chemical vapor deposition (CVD) diamond, were evaluated by Raman spectroscopy and Fourier Transform Infra-Red (FTIR) spectroscopy at a range of temperatures from 80 to 1200 K. The results showed that there was no obvious difference between the HPHT diamond and the CVD diamond in terms of XRD and Raman spectroscopy at 300-1200 K. The measured nitrogen content was ~270 and ~0.89 ppm for the HPHT diamond and the CVD diamond, respectively. The moderate nitrogen impurities did not significantly affect the temperature dependence of Raman spectra for temperature-sensing applications. However, the nitrogen impurities greatly influence FTIR spectroscopy and optical transmittance. The CVD diamond showed higher transmittance, up to 71% with only a ~6% drop at temperatures as high as 873 K. This study shows that CVD bulk diamonds can be used for IR windows under harsh environments.
    Language English
    Publishing date 2021-12-03
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma14237435
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Effects of Y

    Yang, Guojian / Sun, Peng / Wang, Yuezhong / Shi, Zitao / Yan, Qingwei / Li, Shasha / Yang, Guoyong / Yang, Ke / Dun, Shijie / Shang, Peng / Deng, Lifen / Li, He / Jiang, Nan

    Materials (Basel, Switzerland)

    2022  Volume 15, Issue 22

    Abstract: Sintering aid was very crucial to influence the microstructure and thus the optical property of the sintered optical ceramics. The purpose of this work was to explain the difference between the sintering aids of ... ...

    Abstract Sintering aid was very crucial to influence the microstructure and thus the optical property of the sintered optical ceramics. The purpose of this work was to explain the difference between the sintering aids of Li
    Language English
    Publishing date 2022-11-14
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma15228036
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A highly orientational architecture formed by covalently bonded graphene to achieve high through-plane thermal conductivity of polymer composites.

    Yan, Qingwei / Gao, Jingyao / Chen, Ding / Tao, Peidi / Chen, Lu / Ying, Junfeng / Tan, Xue / Lv, Le / Dai, Wen / Alam, Fakhr E / Yu, Jinhong / Wang, Yuezhong / Li, He / Xue, Chen / Nishimura, Kazuhito / Wu, Sudong / Jiang, Nan / Lin, Cheng-Te

    Nanoscale

    2022  Volume 14, Issue 31, Page(s) 11171–11178

    Abstract: Combining the advantages of high thermal conductivities and low graphene contents to fabricate polymer composites for applications in thermal management is still a great challenge due to the high defect degree of exfoliated graphene, the poor orientation ...

    Abstract Combining the advantages of high thermal conductivities and low graphene contents to fabricate polymer composites for applications in thermal management is still a great challenge due to the high defect degree of exfoliated graphene, the poor orientation of graphene in polymer matrices, and the horrible phonon scattering between graphene/graphene and graphene/polymer interfaces. Herein, mesoplasma chemical vapor deposition (CVD) technology was successfully employed to synthesize vertically aligned graphene nanowalls (GNWs), which are covalently bonded by high-quality CVD graphene nanosheets. The unique architecture leads to an excellent thermal enhancement capacity of the GNWs, and a corresponding composite film with a matrix of polyvinylidene fluoride (PVDF) presented a high through-plane thermal conductivity of 12.8 ± 0.77 W m
    Language English
    Publishing date 2022-08-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/d2nr02265f
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Preparation of Humidity-Sensitive Poly(Ethylene Glycol) Inverse Opal Micropatterns Using Colloidal Lithography.

    Yu, Bing / Cong, Hailin / Yang, Zhen / Yang, Shujing / Wang, Yuezhong / Zhai, Feng / Wang, Yifan

    Materials (Basel, Switzerland)

    2017  Volume 10, Issue 9

    Abstract: Humidity-sensitive poly(ethylene glycol) (PEG) inverse opals with micropatterns of 2 μm wide anti-swell-broken grooves were prepared using polystyrene (PS) colloidal crystals as templates and colloidal lithography. Monodisperse PS colloids were deposited ...

    Abstract Humidity-sensitive poly(ethylene glycol) (PEG) inverse opals with micropatterns of 2 μm wide anti-swell-broken grooves were prepared using polystyrene (PS) colloidal crystals as templates and colloidal lithography. Monodisperse PS colloids were deposited in an ordered manner onto glass slides using a double-substrate vertical deposition method to form colloidal crystal templates. Poly(ethylene glycol) diacrylate (PEGDA) with photoinitiator was infiltrated into the interspaces of the colloidal crystals and photo-crosslinked by UV irradiation through a photomask. After removal the PS templates and unexposed PEGDA by tetrahydrofuran (THF), PEG hydrogel micropatterns with three-dimensional ordered porous structures were obtained. The band gaps of the PS colloidal crystals and corresponding PEG hydrogel inverse opals were measured by UV-VIS reflection spectrometer, calculated by Bragg law and simulated by Band SOLVE. The obtained PEG hydrogel inverse opal micropatterns can be used as sensors for humidity sensing due to absorption and desorption of moisture in the band gap structures. The sensor had a very reliable performance after repeated humidity sensing, and could be mass produced facilely with very low cost. The photopatterned anti-swell-broken grooves play an important role in the reliability of the sensors.
    Language English
    Publishing date 2017-09-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma10091035
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Preparation of three-dimensional ordered macroporous C60 and its application in electrochemical sensors

    Yu, Bing / Cong, Hailin / Zhai, Feng / Wang, Yuezhong / Zhang, Xiaoyan

    RSC advances. 2016 Nov. 08, v. 6, no. 108

    2016  

    Abstract: Three-dimensional ordered macroporous (3DOM) materials based on fullerenes (C60) were prepared by using silica (SiO2) colloidal crystals as templates. The silica colloids were deposited in an orderly manner onto the gold surface, followed with the ... ...

    Abstract Three-dimensional ordered macroporous (3DOM) materials based on fullerenes (C60) were prepared by using silica (SiO2) colloidal crystals as templates. The silica colloids were deposited in an orderly manner onto the gold surface, followed with the infiltration of the C60 nanoparticles into the interspaces of the colloids. The as-formed SiO2/C60 hybrid colloidal crystals were subsequently immersed in hydrofluoric acid to remove the silica components fully to obtain 3DOM C60 frameworks. The control of the C60 infiltration solution concentration is the key to obtaining a high quality 3DOM structure of C60. The band gaps of the SiO2 colloidal crystal, SiO2/C60 hybrid colloidal crystal and 3DOM C60 were measured by UV-Vis reflection spectrometry, calculated using Bragg's law, and simulated by Band SOLVE, respectively. It was demonstrated that the 3DOM C60 possesses electrochemical activity and can be used in detecting dopamine with a detection limit of 1.3 × 10−9 mol L−1. Having a three-dimensional ordered macroporous structure with a greater surface area, the 3DOM C60 modified electrode performed better than an unordered C60 modified electrode and a bare gold electrode.
    Keywords colloids ; crystals ; dopamine ; electrochemistry ; electrodes ; fullerene ; gold ; hydrofluoric acid ; nanogold ; porous media ; sensors (equipment) ; silica ; spectroscopy ; surface area
    Language English
    Dates of publication 2016-1108
    Size p. 106096-106101.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/c6ra21016c
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Hybrid Top-Down/Bottom-Up Strategy Using Superwettability for the Fabrication of Patterned Colloidal Assembly

    Wang, Yuezhong / Cong Hailin / Jiang Lei / Su Bin / Wang Jingxia / Wei Cong / Wu Yuchen / Yang Qiang / Zhao Yongsheng

    ACS Applied Materials & Interfaces. 2016 Feb. 24, v. 8, no. 7

    2016  

    Abstract: Superwettability of substrates has had a profound influence on the production of novel and advanced colloidal assemblies in recent decades owing to its effect on the spreading area, evaporation rate, and the resultant assembly structure. In this paper, ... ...

    Abstract Superwettability of substrates has had a profound influence on the production of novel and advanced colloidal assemblies in recent decades owing to its effect on the spreading area, evaporation rate, and the resultant assembly structure. In this paper, we investigated in detail the influence of the superwettability of a transfer/template substrate on the colloidal assembly from a hybrid top-down/bottom-up strategy. By taking advantage of a superhydrophilic flat transfer substrate and a superhydrophobic groove-structured silicon template, the patterned colloidal microsphere assembly was formed including linear and mesh-, cyclic-, and multistopband assembly arrays of microspheres, and the optic-waveguide of a circular colloidal structure was demonstrated. We believed this liquid top-down/bottom-up strategy would open an efficient avenue for assembling/integrating microspheres building blocks into device applications in a low-cost manner.
    Keywords evaporation rate ; hydrophobicity ; silicon
    Language English
    Dates of publication 2016-0224
    Size p. 4985-4993.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1944-8252
    DOI 10.1021%2Facsami.5b11945
    Database NAL-Catalogue (AGRICOLA)

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