LIVIVO - Search results -

Search results

Result 1 - 10 of total 13

Search options

Article ; Online: Influence of lattice water molecules on the magnetization dynamics of binuclear dysprosium(III) compounds: insights from magnetic and

Du, Jiyuan / Wei, Shilong / Jiang, Zhijie / Ke, Hongshan / Sun, Lin / Zhang, Yiquan / Chen, Sanping

Physical chemistry chemical physics : PCCP

2023 Volume 25, Issue 16, Page(s) 11717–11724

Abstract: Lattice water effects on the structures and magnetic properties of single-molecule magnets (SMMs) have attracted considerable attention. Herein, we have successfully synthesized two centrosymmetric binuclear compounds [ ... ...

Abstract	Lattice water effects on the structures and magnetic properties of single-molecule magnets (SMMs) have attracted considerable attention. Herein, we have successfully synthesized two centrosymmetric binuclear compounds [Dy
Language	English
Publishing date	2023-04-26
Publishing country	England
Document type	Journal Article
ZDB-ID	1476244-4
ISSN	1463-9084 ; 1463-9076
ISSN (online)	1463-9084
ISSN	1463-9076
DOI	10.1039/d2cp06074d
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Article ; Online: Deep-learning-based cross-modality translation from Stokes image to bright-field contrast.

Wei, Shilong / Si, Lu / Huang, Tongyu / Du, Shan / Yao, Yue / Dong, Yang / Ma, Hui

Journal of biomedical optics

2023 Volume 28, Issue 10, Page(s) 102911

Abstract: Significance: Mueller matrix (MM) microscopy has proven to be a powerful tool for probing microstructural characteristics of biological samples down to subwavelength scale. However, in clinical practice, doctors usually rely on bright-field microscopy ... ...

Abstract	Significance: Mueller matrix (MM) microscopy has proven to be a powerful tool for probing microstructural characteristics of biological samples down to subwavelength scale. However, in clinical practice, doctors usually rely on bright-field microscopy images of stained tissue slides to identify characteristic features of specific diseases and make accurate diagnosis. Cross-modality translation based on polarization imaging helps to improve the efficiency and stability in analyzing sample properties from different modalities for pathologists. Aim: In this work, we propose a computational image translation technique based on deep learning to enable bright-field microscopy contrast using snapshot Stokes images of stained pathological tissue slides. Taking Stokes images as input instead of MM images allows the translated bright-field images to be unaffected by variations of light source and samples. Approach: We adopted CycleGAN as the translation model to avoid requirements on co-registered image pairs in the training. This method can generate images that are equivalent to the bright-field images with different staining styles on the same region. Results: Pathological slices of liver and breast tissues with hematoxylin and eosin staining and lung tissues with two types of immunohistochemistry staining, i.e., thyroid transcription factor-1 and Ki-67, were used to demonstrate the effectiveness of our method. The output results were evaluated by four image quality assessment methods. Conclusions: By comparing the cross-modality translation performance with MM images, we found that the Stokes images, with the advantages of faster acquisition and independence from light intensity and image registration, can be well translated to bright-field images.
MeSH term(s)	Deep Learning ; Microscopy ; Lung ; Staining and Labeling ; Liver/diagnostic imaging ; Image Processing, Computer-Assisted/methods
Language	English
Publishing date	2023-10-20
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1309154-2
ISSN	1560-2281 ; 1083-3668
ISSN (online)	1560-2281
ISSN	1083-3668
DOI	10.1117/1.JBO.28.10.102911
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 4699: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article: Influence of Cu/Mg ratio on microstructure and mechanical properties of Al–Zn–Mg–Cu alloys

Wei, Shilong / Wang, Richu / Zhang, Hui / Xu, Chunting / Wu, Ying / Feng, Yan

Journal of materials science. 2021 Feb., v. 56, no. 4

2021

Abstract: The relationship between microstructure evolution and mechanical performance of Al–Zn–Mg–Cu alloys with varying Cu/Mg ratios was discussed in detail under different two-step aging (T7X). The results showed that the undissolved second-phase particles ... ...

Abstract	The relationship between microstructure evolution and mechanical performance of Al–Zn–Mg–Cu alloys with varying Cu/Mg ratios was discussed in detail under different two-step aging (T7X). The results showed that the undissolved second-phase particles including σ-Al₇Cu₂Fe and T-Al₂Mg₃Zn occurred in the quenched Al–Zn–Mg–Cu alloys. When the Cu/Mg ratio approaches 1.64, the S-Al₂CuMg phase was also observed. Although the Cu/Mg ratio did not change the precipitation sequence of the Al–Zn–Mg–Cu alloys, it changed the coarsening rate and precipitate size distribution during aging process. The Al–Zn–Mg–Cu alloy with the lowest Cu/Mg ratio has the slowest coarsening rate and the highest strength (655 MPa). The fracture morphology of Al–Zn–Mg–Cu alloys changes from the typical brittle fracture to the intergranular-dominated mixed fracture mode or ductile fracture when the Cu/Mg ratios increases. Besides, the T79-aged alloys with varying Cu/Mg ratios have similar grain boundary precipitates (GBPs) and precipitate-free zones (PFZs). The T74-aged alloys with higher Cu/Mg ratio have more coarser GBPs and wider PFZs.
Keywords	alloys ; brittleness ; microstructure
Language	English
Dates of publication	2021-02
Size	p. 3472-3487.
Publishing place	Springer US
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2015305-3
ISSN	1573-4803 ; 0022-2461
ISSN (online)	1573-4803
ISSN	0022-2461
DOI	10.1007/s10853-020-05438-0
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Article ; Online: An Examination to Explain the Mechanism of Employees' Environment-Specific Behavior through CSR and Work Engagement from the Perspective of Stewardship Theory.

Wei, Shilong / Sial, Muhammad Safdar / Comite, Ubaldo / Thu, Phung Anh / Badulescu, Daniel / Popp, József

International journal of environmental research and public health

2021 Volume 18, Issue 17

Abstract: Corporate social responsibility (CSR) has emerged as an imperative for every sector globally. Yet, for a long time, the concept of CSR has been regarded from an organizational perspective. However, the importance of CSR in shaping the extra-role behavior ...

Abstract	Corporate social responsibility (CSR) has emerged as an imperative for every sector globally. Yet, for a long time, the concept of CSR has been regarded from an organizational perspective. However, the importance of CSR in shaping the extra-role behavior of employees, such as their pro-environmental behavior (PEB-E), has been under-explored in the literature. Against this backdrop, the current study aims to investigate the impact of CSR on PEB-E with the mediating effect of work engagement (W.E) in the context of a emerging country. The study also employs stewardship theory as an alternate theory to explain the proposed relationships. The data of the current study were obtained from SME sector through a self-administered (paper-and-pencil method) questionnaire. A random sample of employees (
MeSH term(s)	Latent Class Analysis ; Organizations ; Social Responsibility ; Surveys and Questionnaires ; Work Engagement
Language	English
Publishing date	2021-09-05
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2175195-X
ISSN	1660-4601 ; 1661-7827
ISSN (online)	1660-4601
ISSN	1661-7827
DOI	10.3390/ijerph18179370
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

Article ; Online: Improving the Environmental Footprint through Employees: A Case of Female Leaders from the Perspective of CSR.

Wei, Shilong / Sial, Muhammad Safdar / Zhou, Wenxia / Badulescu, Alina / Badulescu, Daniel

International journal of environmental research and public health

2021 Volume 18, Issue 24

Abstract: Environmental quality strongly depends on human behavior patterns. Many environmental challenges are rooted in human actions, and thus, it is believed that these problems can be reduced through the promotion of pro-environmental behaviors (PB). Owing to ... ...

Abstract	Environmental quality strongly depends on human behavior patterns. Many environmental challenges are rooted in human actions, and thus, it is believed that these problems can be reduced through the promotion of pro-environmental behaviors (PB). Owing to this reality, the current study aims to reduce the environmental footprint of a hospital by promoting its employees' environment-specific behavior via corporate social responsibility (CSR) and ethical leadership (EL). More importantly, the study also considered the role of female leaders in the proposed relationship. The current study collected the data from the respondents employed in different hospitals of a developing economy through a questionnaire (paper-pencil method). A total of 489 valid responses were collected, which were analyzed by employing the structural equation modeling (SEM) technique. As per the current study's findings, there is a positive relationship between CSR, while EL mediates between CSR and PB. Likewise, the moderating role of female leaders in the proposed relationship was more significant than that of male leaders. More specifically, the study's findings have considerable theoretical and practical implications, as it opens paths for researchers to further investigate the applicability of different dimensions of CSR and the role of gender in environmental sustainability. It provides insight to policymakers on how to restructure their CSR preferences, priorities on the environment, and gender differences.
MeSH term(s)	Female ; Humans ; Leadership ; Male ; Morals ; Organizations ; Social Responsibility ; Surveys and Questionnaires
Language	English
Publishing date	2021-12-11
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2175195-X
ISSN	1660-4601 ; 1661-7827
ISSN (online)	1660-4601
ISSN	1661-7827
DOI	10.3390/ijerph182413082
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

Article ; Online: Biomimetic Total Synthesis of the Spiroindimicin Family of Natural Products.

Zheng, Xikang / Li, Yan / Guan, Mengtie / Wang, Lingyue / Wei, Shilong / Li, Yi-Cheng / Chang, Chin-Yuan / Xu, Zhengren

Angewandte Chemie (International ed. in English)

2022 Volume 61, Issue 38, Page(s) e202208802

Abstract: A unified strategy for the biomimetic total synthesis of the spiroindimicin family of natural products was reported. Key transformations include a one-pot two-enzyme-catalyzed oxidative dimerization of L-tryptophan/5-chloro-L-tryptophan to afford the bis- ...

Abstract	A unified strategy for the biomimetic total synthesis of the spiroindimicin family of natural products was reported. Key transformations include a one-pot two-enzyme-catalyzed oxidative dimerization of L-tryptophan/5-chloro-L-tryptophan to afford the bis-indole precursors chromopyrrolic acid/5',5''-dichloro-chromopyrrolic acid, and regioselective C3'-C2'' and C3'-C4'' bond formation converting a common bis-indole skeleton to two skeletally different natural products, including (±)-spiroindimicins D and G with a [5,5] spiro-ring skeleton, and (±)-spiroindimicins A and H with a [5,6] spiro-ring skeleton, respectively.
MeSH term(s)	Biological Products/chemistry ; Biomimetics ; Dimerization ; Indoles/chemistry ; Tryptophan/chemistry
Chemical Substances	Biological Products ; Indoles ; Tryptophan (8DUH1N11BX)
Language	English
Publishing date	2022-08-17
Publishing country	Germany
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2011836-3
ISSN	1521-3773 ; 1433-7851
ISSN (online)	1521-3773
ISSN	1433-7851
DOI	10.1002/anie.202208802
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

Article: Analysis of Orbital Atmospheric Density from QQ-Satellite Precision Orbits Based on GNSS Observations

Sun, Yueqiang / Wang, Bowen / Meng, Xiangguang / Tang, Xinchun / Yan, Feng / Zhang, Xianguo / Bai, Weihua / Du, Qifei / Wang, Xianyi / Cai, Yuerong / Guo, Bibo / Wei, Shilong / Qiao, Hao / Hu, Peng / Li, Yongping / Wang, Xinyue

Remote Sensing. 2022 Aug. 10, v. 14, no. 16

2022

Abstract: Atmospheric drag provides an indirect approach for evaluating atmospheric mass density, which can be derived from the Precise Orbit Determination (POD) of Low Earth Orbit (LEO) satellites. A method was developed to estimate nongravitational acceleration, ...

Abstract	Atmospheric drag provides an indirect approach for evaluating atmospheric mass density, which can be derived from the Precise Orbit Determination (POD) of Low Earth Orbit (LEO) satellites. A method was developed to estimate nongravitational acceleration, which includes the drag acceleration of the thermospheric density model and empirical force acceleration in the velocity direction from the centimeter-level reduced-dynamic POD. The main research achievements include the study of atmospheric responses to geomagnetic storms, especially after the launch of the spherical Qiu Qiu (QQ)-Satellite (QQ-Satellite) with the global navigation system satellite (GNSS) receiver onboard tracking the Global Positioning System (GPS) and Beidou System (BDS) data. Using this derivation method, the high-accuracy POD atmospheric density was determined from these data, resulting in better agreement among the QQ-Satellite-derived densities and the NRLMSISE-00 model densities. In addition, the POD-derived density exhibited a more sensitive response to magnetic storms. Improved accuracy of short-term orbit predictions using derived density was one of the aims of this study. Preliminary experiments using densities derived from the QQ-Satellite showed promising and encouraging results in reducing orbit propagation errors within 24 h, especially during periods of geomagnetic activity.
Keywords	magnetism ; mass density ; models ; satellites ; thermosphere
Language	English
Dates of publication	2022-0810
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2513863-7
ISSN	2072-4292
ISSN	2072-4292
DOI	10.3390/rs14163873
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Article ; Online: Research and development of a high-performance differential-hybrid charge sensitive preamplifier.

Zeng, Guoqiang / Hu, Chuanhao / Wei, Shilong / Yang, Jian / Li, Qiang / Ge, Liangquan / Tan, Chengjun

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

2017 Volume 120, Page(s) 95–100

Abstract: A differential-hybrid charge sensitive preamplifier (CSP) was designed by taking a monolithic dual N-Channel Junction Field-effect Transistor (JFET) and a high-speed, low-noise, operational amplifier as the core parts. Input-stage of the circuit employs ... ...

Abstract	A differential-hybrid charge sensitive preamplifier (CSP) was designed by taking a monolithic dual N-Channel Junction Field-effect Transistor (JFET) and a high-speed, low-noise, operational amplifier as the core parts. Input-stage of the circuit employs low-noise differential dual JFET, which ensures high input impedance and low noise. The differential dual transistor makes the quiescent point of the first-stage differential output stable, which is convenient for connecting with the post stage high-speed operational amplifier. Broadband could be amplified by connecting to the double differential dual transistors through the folded cascode-bootstrap. The amplifying circuit which replaces the interstage and post stage discrete components of a traditional CSP with integrated operational amplifier is simpler and more reliable. It simplifies the design of the quiescent point, gives full play to advantages of releasing large open-loop gain, and improves charge-voltage conversion gain stability. Particularly, the charge-voltage conversion gain is larger under a smaller feedback capacitor, thus enabling to gain better signal-noise ratio. The designed CSP was tested, reporting 3.3×10
Language	English
Publishing date	2017-02
Publishing country	England
Document type	Journal Article
ZDB-ID	1142596-9
ISSN	1872-9800 ; 0883-2889 ; 0969-8043
ISSN (online)	1872-9800
ISSN	0883-2889 ; 0969-8043
DOI	10.1016/j.apradiso.2016.12.006
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Ue I Zs.279: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article: [Study on Si-PIN and CdTe Detectors Used in Energy Dispersive X-Ray Fluorescence Measurements].

Hu, Chuan-hao / Zeng, Guo-qiang / Ge, Liang-quan / Yu, Ming-fu / Wei, Shi-long / Zhang, Kai-qi / Yang, Jian / Chen, Chuan

Guang pu xue yu guang pu fen xi = Guang pu

2018 Volume 37, Issue 1, Page(s) 262–266

Abstract: Semiconductor detector is widely used in energy dispersive X-ray fluorescence measurements due to its excellent performance. In this paper, Si-PIN and CdTe semiconductor detectors were studied, performances of the two detectors were compared in material ... ...

Abstract	Semiconductor detector is widely used in energy dispersive X-ray fluorescence measurements due to its excellent performance. In this paper, Si-PIN and CdTe semiconductor detectors were studied, performances of the two detectors were compared in material properties, detection efficiency, energy resolution and other aspects. Focused on the performance of the detectors influenced by the thickness of detector sensitive area, energy of incident X-ray, shaping time of post-stage circuit, and analyzed the differences of energy spectrum caused by escape peaks and hole trailing. Aiming at the problem of incomplete hole collection in detector, a digital multi-channel analyzer (DMCA) based on FPGA with rise-time discriminator was designed, it could reduce the influence of hole trailing effectively and improve energy resolution. The experimentation results indicate that the detection efficiency of Si-PIN and CdTe is roughly equal when energy is below 15 keV while CdTe has much higher detection efficiency than Si-PIN when energy is above 15 keV. The optimum forming time of the Si-PIN detector is about 10 μs, and the CdTe detector is about 2.6 μs, so the CdTe detector is more suitable for the high count rate condition. Si-PIN detector has better energy resolution than CdTe detector for different energy incident X-ray. CdTe detector has obvious hole tailing effect and the energy resolution of CdTe detector is significantly improved by using DMCA with rise-time discrimination.
Language	Chinese
Publishing date	2018-09-17
Publishing country	China
Document type	English Abstract ; Journal Article
ISSN	1000-0593
ISSN	1000-0593
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article: Characterization of PM2.5-bound nitrated and oxygenated PAHs in two industrial sites of South China

Wei, Shilong / Huang, Bo / Liu, Ming / Bi, Xinhui / Ren, Zhaofang / Sheng, Guoying / Fu, Jiamo

Atmospheric research. 2012 June, v. 109-110

2012

Abstract: Daytime and nighttime PM2.5 samples were collected between August 5 and 16, 2009 and between January 24 and February 4, 2010 in an industrial complex site (site A) and an e-waste recycling site (site B) to determine the seasonal and diurnal variations of ...

Abstract	Daytime and nighttime PM2.5 samples were collected between August 5 and 16, 2009 and between January 24 and February 4, 2010 in an industrial complex site (site A) and an e-waste recycling site (site B) to determine the seasonal and diurnal variations of nitrated (nitro-) and oxygenated (oxy-) polycyclic aromatic hydrocarbons (PAHs) with gas chromatography/mass spectrometry (GC/MS). The two sites show similar composition for nitro- and oxy-PAHs although the composition of parent PAHs was quite different. 3+2-Nitrofluoranthene (3+2NFL) was the most abundant nitro-PAH, while 9,10-anthraquinone (Anquin), benzanthrone (Bzone) and 6H-benzo[cd]pyrene-6-one (Bpone) were the three major oxy-PAHs species. The concentrations of Σnitro-PAHs and Σoxy-PAHs were about 2–3 orders of magnitude lower than those of Σparent PAHs. Most of the nitro- and oxy-PAHs show notable seasonal variation. 7-Nitrobenz[a]anthracene (7NBaA), Bzone and benzo[a]anthrancene-7,12-dione (Bzdion) demonstrated a pronounced diurnal variation. The occurrence of nitro- and oxy-PAHs in the two sites can be accounted by direct emission and atmospheric secondary formation.
Keywords	anthracenes ; diurnal variation ; electronic wastes ; gas chromatography ; mass spectrometry ; recycling ; seasonal variation ; China
Language	English
Dates of publication	2012-06
Size	p. 76-83.
Publishing place	Elsevier B.V.
Document type	Article
ISSN	0169-8095
DOI	10.1016/j.atmosres.2012.01.009
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED