Search

As an emerging collaboration platform based on web 2.0 technologies, enterprise social media can provide opportunities and challenges for information acquisition and creativity development. However, existing research on the ways in which enterprise social media use affects employee creativity from both internal and external team perspectives is rather limited. Using communication visibility theory (CVR), this paper proposes a research model for investigating the relationship between enterprise social media (ESM) usage and employee creativity. Drawing on an analysis of 218 employees' data, this study found that ESM, when used for both work and social purposes, has a positive effect on internal information exchange within teams and external knowledge acquisition across teams, which further contributes to employee creativity. Innovative culture can weaken the relationship between work-related ESM usage and internal team information exchange, and strengthen the relationship between social-related ESM usage and internal team information exchange. The findings suggest means of using enterprise social media for specific purposes to increase creativity and innovation in organizations. [ABSTRACT FROM AUTHOR]

Highlights: [•] APFO was effectively decomposed in persulfate/ultrasound system. [•] APFO decomposition under different conditions was studied. [•] The SO4 −•/APFO reactions primarily occur at the bubble–water interface. [Copyright &y& Elsevier]

Earlier research on the ways in which enterprise social media (ESM) usage contributes to employee resilience is rather limited. Using boundary spanning theory, this paper proposes a research model for investigating how enterprise social media usage contributes to employee resilience. Using Smart PLS 4.0 to analyze the survey data from 370 employees, this study found that, first, when enterprise social media is used for work and social purposes, it has a positive effect on employee boundary spanning, while the effect of social-related ESM usage on employee boundary spanning is larger than work-related ESM usage. Second, employee boundary spanning has the greatest effect on the behavioural dimension of employee-level resilience, followed by the cognitive dimension of employee-level resilience and the contextual dimension. Third, employees' boundary spanning acts as a partial mediator between enterprise social media and employees' different levels of resilience. Finally, it is interesting to find that individual adaptability can weaken the relationship between work-related ESM usage and employee boundary spanning, while individual adaptability can strengthen the relationship between social-related ESM usage and employee boundary spanning. The research findings suggest ways of using enterprise social media for specific purposes to increase employees' different levels of resilience in organisations. [ABSTRACT FROM AUTHOR]

A novel 1064 nm laser stealth absorbent of samarium oxide carbonate hydrate (Sm 2 O(CO 3) 2 ·xH 2 O) nanomaterial has been prepared by hydrothermal treatment of g-C 3 N 4 in Sm(NO 3) 3 solution. The samples were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), Energy Dispersive X-Ray Spectroscopy (EDX), transmission electron microscopy (TEM), Fourier-transform infrared (FTIR) and UV-VIS-NIR spectrophotometer. The results showed g-C 3 N 4 was unstable during the hydrothermal process, and it was the carbon source of Sm 2 O(CO 3) 2 ·xH 2 O. The obtained Sm 2 O(CO 3) 2 ·xH 2 O particles was about 100 nm in size, changing from spherical to rod with the prolongation of reaction time. The samples showed a narrow absorption peak at 1068 nm, which means they would have application as 1064 nm laser absorbents. The photothermal curves showed Sm 2 O(CO 3) 2 ·xH 2 O particles can convert the absorbed 1064 nm laser into thermal energy. As the reaction time prolongs, the NIR absorption and photothermal conversion performance increase first and then decreases, the sample obtained at 200 °C for 24 h has the best absorption rate and photothermal conversion performance. Image 1030194 • Sm 2 O(CO 3) 2 ·xH 2 O was prepared with g-C 3 N 4 as carbon source. • g-C 3 N 4 begins to decompose under hydrothermal treatment for 4 h. • The strongest adsorption peak of Sm 2 O(CO 3) 2 ·xH 2 O is located at 1068 nm. • Sm 2 O(CO 3) 2 ·xH 2 O can convert the absorbed 1064 nm laser into thermal energy. [ABSTRACT FROM AUTHOR]

An increasing number of employees are using social media for their daily work. But the relationship between social media use and job performance is controversial. To address this issue, this study explores the impact of different social media platform usage on job performance based on different usage purposes. The media synchronicity theory provides the theoretical foundation. Surveys were conducted in an Internet commerce company in China, generating 301 valid responses for analysis. The results showed that both work-related and social-related use of enterprise social media had a U-shape effect on job performance. Also, work-related use of general social media had a U-shape effect on job performance, whereas social-related use of general social media had no effect on job performance. These results offer insights about how organisations may guide their employees in their use of social media to improve job performance. [ABSTRACT FROM AUTHOR]

Waveguide imaging is considered as one of the most important and widely used techniques in biomedical endoscopic applications. Recently, many attempts have been made to develop ever miniaturised in vivo imaging devices for minimally invasive clinical inspections. However, miniaturisation implies using a smaller optical aperture waveguide, which may introduce pixilation artefacts and pixel‐to‐pixel distortion to deteriorate overall imaging quality. To overcome the constraints imposed by miniaturised waveguides, the deep learning algorithms can be an effective tool to cure the imaging distortion via post‐processing, which already had encouraging results in many scenes of automatic machine‐learnt imaging restoration. The authors introduce the waveguide imaging transmission and the restoration algorithms, and then discuss their possible combinations. The results show that the integration of advanced waveguides and optimised algorithms can achieve unprecedented imaging restoration than before. In the future, in order to fill the need for high‐quality reconstructed images, we should not only improve ability of software to optimise restoration algorithms but also correspondingly concern hardware progress in waveguides. The practical sense of it is to help researchers better master and take advantage of these combinations to make next generation high‐fidelity endoscopes. [ABSTRACT FROM AUTHOR]

In the context of the digital economy, one of the most important issues facing business managers is how to improve digital performance. However, the extant studies exploring this problem are quite limited. Based on information processing theory, this paper proposes a research model to investigate the relationship between employee resilience and digital performance, and the moderating role of enterprise social media usage. According to the analysis of data from 277 employees, this study finds that: (1) employee resilience has a positive effect on employee cognitive flexibility; (2) employee cognitive flexibility can positively influence digital performance, and the effect of employee cognitive flexibility on digital-enabled innovative performance is larger than the effect of employee cognitive flexibility on digital-enabled task performance; (3) both work-related social media usage and social-related social media usage exert a positive moderating effect between employee resilience and employee cognitive flexibility. The findings can help deepen the understanding of the relationship between employee resilience, employee cognitive flexibility, and digital performance, and give business managers suggestions on using enterprise social media to improve digital performance. [ABSTRACT FROM AUTHOR]

Highlights: [•] Combined effect of ultrasound and ZVAl on wastewater treatment was explored. [•] About 96% of AO7 can be degraded within 30 min under optimized conditions. [•] Effects of operating parameters on the degradation of AO7 were examined. [Copyright &y& Elsevier]

Highlights: [•] Hardfacing metal of the hypereutectic Fe–Cr–C alloy with different La2O3 additives was developed. [•] The dimension of the primary M7C3 carbide decreases with the increase of the La2O3 additives. [•] Austenite precipitated in the liquid phase can improve the precipitation rate of M7C3 carbide. [•] γ-Fe transforms into α-Fe can promote the growth of the M7C3 carbide in short period. [Copyright &y& Elsevier]

The present study aims to investigate the genetic stability of the plasmid expressing chicken interleukin-2 (ChIL-2) and chicken interleukin-4 (ChIL-4) fusion genes carried by the DH5α/pUC57 recombinant strain during the large-scale production process, and to explore its potential as an immune adjuvant for live chicken coccidiosis vaccine in commercial batch production. The laboratory genetic stability identification of the recombinant DH5α/pUC57 was carried out by subculturing the recombinant plasmid for 30 consecutive generations. The results showed that after the recombinant strain being cultured for 30 consecutive generations on the lysic broth (LB) plates containing ampicillin (Amp+), the recombinant bacterias remained Gram-negative (G-), and could ferment glucose and mannitol to result in specific phenomena, whereas none fermented lactose was found. The homology of the 16S rDNA fragments between the recombinant bacteria and E. coli was greater than 95%, the supercoil ratio of the recombinant plasmids of each generation was greater than 90%, and the plasmid loss rate was 0. The expression product of the recombinant plasmid could stimulate the differentiation of spleen lymphocytes of SPF chicks. The above results indicate that there were essentially no changes in the structure of the 30 generations of continuous passages for the ChIL-2-ChIL-4 fusion gene recombinant bacteria and recombinant plasmids, and the plasmids can be isolated stably, which can provide material support for the expansion of production. [ABSTRACT FROM AUTHOR]

(R)‐3‐aminopiperidine ((R)‐APD), a key intermediate for alogliptin, trelagliptin, and linagliptin, was successfully resolved from racemic 3‐aminopiperidine with an enantiomerically pure resolving agent, namely, (R)‐4‐(2‐chlohydroxy‐1.3.2‐dioxaphosphorinane 2‐oxide ((R)‐CPA), via diastereomeric salt formation. By this resolution approach, (R)‐3‐aminopiperidine was obtained in 99.5% yield with 99.6%e.e. [ABSTRACT FROM AUTHOR]

Highlights: [•] Polyhydroquinone was synthesized by oxidative polymerization of hydroquinone. [•] The degradation rate of RhB was enhanced in the presence of polyhydroquinone. [•] Polyhydroquinone serves as an electron shuttle to enhance the degradation rate. [ABSTRACT FROM AUTHOR]

Abstract: Arc surfacing layer of hypoeutectic high chromium cast iron (HCCI) expects refiner carbides in the microstructure to improve its mechanical properties. In this paper, Ti additive as a strong carbide forming element was added in the hypoeutectic HCCI arc surfacing layer. Microstructure of titaniferous hypoeutectic HCCI was studied by optical microscopy, X-ray diffraction and field emission scanning electronic microscopy with energy dispersive spectrometer. Furthermore, the M(M=Cr, Fe)7C3 carbide refinement mechanism was explained by the phase diagram calculation and lattice misfit theory. The results show that, the M7C3 carbide in arc surfacing microstructure of hypoeutectic HCCI has been refined with 2wt.% Ti additive, and TiC carbide can be observed in/around the M7C3 carbide. With Ti addictive increasing, the micro-hardness along the depth in profile section of layer becomes more uniform, and the wear resistance has been improved. According to the phase diagram calculation, MC carbide precipitates prior to M7C3 carbide in Fe–Cr–C–Ti alloy. In addition, the lattice misfit between (110)TiC and is 9.257%, which indicates that the TiC as heterogeneous nuclei of the M7C3 is medium effective. Therefore, the M7C3 carbide can be refined. [Copyright &y& Elsevier]