Showing papers by "Shandong Institute of Business and Technology published in 2023"
TL;DR: In this article , the bicriteria problem of scheduling n jobs on an unbounded parallel-batch machine was studied and an O(n3)-time algorithm was given.
17 citations
TL;DR: Zhang et al. as discussed by the authors empirically tested the impact of digital technology on enterprise exploratory innovation by using a fixed effects negative binomial regression model and further explored the intermediate mechanism and boundary conditions between the two.
Abstract: Emerging digital technologies, with their great advantages in resource convergence, opportunity identification, supply-demand docking and knowledge sharing, are breaking and subverting traditional business concepts and providing a new impetus and opportunities for enterprise innovation activities. Therefore, it is valuable to explore how digital technology affects exploratory innovation to gain a sustainable competitive advantage in a dynamic and changing market environment. Based on data from Chinese A-share high-tech manufacturing listed companies from 2012 to 2020, this paper empirically tests the impact of digital technology on enterprise exploratory innovation by using a fixed effects negative binomial regression model and further explores the intermediate mechanism and boundary conditions between the two. The results show that digital technology has a significant positive impact on enterprise exploratory innovation, and that knowledge breadth plays a mediating role; high network centrality can effectively strengthen the positive impact of digital technology on enterprise knowledge breadth, thus promoting enterprise exploratory innovation. The conclusion enriches and expands the theoretical and empirical research on the driving effect of digital technology innovation, and provides strong practical guidance for encouraging enterprises to achieve exploratory innovation.
2 citations
TL;DR: In this article , the crystal structure, electronic and optical properties of Cs2Ag1-xNaxInCl6 (x = 0.00, 0.25 and 0.6405 meV/atom) have been calculated.
1 citations
14 Feb 2023
TL;DR: In this article , it was proved that for any fixed fixed fixed number of primes in the intersection of the Beatty sequence, there exist infinitely many primes with multiplicity.
TL;DR: Wang et al. as mentioned in this paper explored the dynamic distribution of city-level CO2 emissions from China's national and regional perspectives and applied a q-σ stochastic convergence model to inspect the heterogeneous convergence trend of carbon emissions at different quantiles.
02 Mar 2023
TL;DR: In this article , the ozone oxidation of thiocyanate to regenerate cyanide is developed through experimental equipment and condition control, and the regeneration rate can reach over 85% which achieves the oxidative regeneration of THIOCANATE and provides direction and data support for cyanide and the realization of resource reuse.
Abstract: The cyanide leaching process produces large amounts of SCN- ions. Ultraviolet light can decompose thiocyanate into highly toxic cyanide, posing a hazard to aquatic organisms. However, the complete decomposition of thiocyanate technology is costly, and its industrial application imposes a heavy burden on enterprises. In this study, the technology of ozone oxidation of thiocyanate to regenerate cyanide is developed through experimental equipment and condition control. By controlling the concentration of metal ions, the initial pH value, and the dosage of the agent (ozone), the regeneration rate can reach over 85%, which achieves the oxidative regeneration of thiocyanate and provides direction and data support for cyanide and the realization of resource reuse.
16 Mar 2023
01 Mar 2023
TL;DR: In this paper , an upper and lower solution method of classical k-convex large solutions to the k-Hessian equation was proposed, and the optimal global estimates and boundary behavior of large solutions were investigated.
Abstract: In this paper, we consider the k-Hessian equation $${S_k}({D^2}u) = b(x)f(u)\,\,\,in\,\,\Omega,\,\,\,\,u = + \infty \,\,on\,\,\partial \Omega,$$ where Ω is a smooth, bounded, strictly convex domain in ℝN with N ≥ 2, b ∈ C∞ (Ω) is positive in Ω and may be singular or vanish on the boundary, f ∈ C∞ (0, +∞) ∩ C[0, +∞) (or f ∈ C∞ (ℝ)) is positive and increasing on [0, +∞) (or ℝ) and satisfies the Keller—Osserman type condition. We first prove an upper and lower solution method of classical k-convex large solutions to the above equation, and then we study the optimal global estimates and boundary behavior of large solutions. In particular, we investigate the asymptotic behavior of such solutions when the parameters on b tend to the corresponding critical values and infinity.
TL;DR: In this article , the acidification iron salt precipitation process was used to purify the cyanide in the wastewater, and the results showed that the total cyanide content of the wastewater is greatly reduced after acidification stripping treatment.
Abstract: In this study, the solid–liquid separation washing wastewater from cyanide tailings was used as the research object, and the acidification iron salt precipitation process was used to purify the cyanide in the wastewater. The results show that the total cyanide content of the wastewater is greatly reduced after acidification stripping treatment. After acidification, ferrous sulfate is added to the filtrate for precipitation treatment, and the total cyanide content in the wastewater can be reduced to less than 50 mg/L. the treated wastewater can be used in the washing process of cyanide tailings. Therefore, acidification iron salt precipitation process can realize the recycling of wastewater after solid–liquid separation and washing.
01 Jan 2023
TL;DR: Wang et al. as mentioned in this paper proposed a Siamese network that enhances contour and structural details to achieve higher-accuracy change detection tasks for bitemporal remote sensing images, which is based on the reparameterization technique.
Abstract: Obtaining change information in different periods from a pair of registered satellite remote sensing images is of great significance to urban planning, so change detection (CD) technology has attracted extensive attention in recent years. In recent years, convolutional neural networks have set off a boom in many artificial intelligence research fields because of their excellent feature extraction performance. However, the common convolution operation mainly focuses on the abstraction of the semantic information of the features, which often leads to the details of the features being ignored and thus affects the final accuracy. For example, the contour details of changing objects and the structural information of small objects are often lost. We propose a Siamese network that enhances contour and structural details to achieve higher-accuracy CD tasks for bitemporal remote sensing images. In this network, we propose an efficient contour-enhanced convolutional block that is based on the reparameterization technique. The contour-enhanced convolutional block strengthens the extraction of structural and contour features by integrating different branches. In addition, inspired by NestedUNet and to better preserve the original location information of features, we use a dense connection as the feature extractor to obtain refined features of bitemporal images. After that, we use a difference module to calculate the change characteristics of the dual-time image, and we use atrous spatial pyramid pooling and enhanced spatial attention to further refine the obtained change characteristics. We conduct extensive experiments on three different datasets to verify the effectiveness of our model. Experimental results show that our method outperforms state-of-the-art methods in both overall accuracy and visualization details.