The modernity of the phenomenology embodies concretely in its spirit of philosophy and methodological principles. The contribution of the phenomenological aesthetics incarnates mainly in the following several aspects: breaking with the idea which beauty is substance; aesthetics is science of aesthetic values.
Cooperative design is an important issue when applying computer supported cooperative work (CSCW) in manufacturing. The key technology of cooperative design is discussed here. This paper presents an injection mold cooperative design system based on CSCW structure, which supports distributed cooperative design.
E-commerce not only provides development opportunities for enterprises, but also brings certain challenges to enterprises. In the context of the continuous improvement of the market economic system, venture investment is increasingly favored by small and medium enterprises. Although venture investment has promoted the development of enterprises to a certain extent, there are many problems in the process of introducing investment. Based on this, this paper briefly introduces the relationship between e-commerce and venture investment, and its impact on enterprises.
The poor visibility of underwater images is caused not only by scattering and absorption effects but is also related to light conditions. To improve robustness, a novel underwater image enhancement method based on natural light and reflectivity is proposed. Aiming at the scattering effects of reflectivity, a dehazing process based on the non-correlation of a foreground scene and background light is first conducted. Then, a more precise reflectivity can be estimated by substituting the captured image with the dehazed image. Moreover, classical methods often regard the dehazed image as the final result, but ignore the fact that attenuated natural light and nonuniform artificial light, which lead to insufficient brightness and halo effects, are included in the dehazed image, and are not robust to all scenes. This phenomenon enables us to remove the artificial light disturbance by introducing the dehazed image in the Lambertian model, and compensate for the loss of natural light energy by exploiting the light attenuation ratio map. Thus, the least-attenuated natural light can be further derived. Experimental results demonstrate that our method is satisfactory in producing more pleasing results under various circumstances.
With the rapid development of network technology, global e-commerce enterprises are mushrooming, and corresponding economic behaviors such as investment, financing and mergers and acquisitions of e-commerce enterprises are constantly appearing. Therefore, it is very important to construct the value assessment system of e-commerce enterprises. This paper takes the characteristics and value of e-commerce enterprises as a starting point, and explores the value assessment of e-commerce enterprises based on the real option theory of Black-Scholes (B-S), which is a model with good applicability in market transactions. Not only can the model reduce the computational complexity of enterprise value, it can also improve the accuracy of value assessment, which is now an important reference for the value assessment of e-commerce enterprises in the era of big data.
Abstract Cable-driven parallel robots (CDPRs) have the characteristic of easy deployment, which endows CDPRs with flexible workspace, freely configurable degrees-of-freedom (DOFs), and various configurations, greatly expanding their range of applications. Modular design provides excellent convenience and feasibility for deployment, which is a crucial issue of CDPR design. A highly integrated cable-driving module is designed in this paper, which includes the winding bobbin, servo motor, force sensor, external encoder, electromagnetic brake, as well as other devices. Experiments show that the maximum cable length control error is less than 0.16%, and the maximum cable tension control error is less than 8% in the back-and-forward rotation test. Furthermore, a CDPR with eight cables and six DOFs is constructed rapidly using the proposed module, whose dimension is 850 × 850 × 650 mm3. Results show that the robot’s trajectory errors are all less than 4.5 mm, and the root-mean-square-error (RMSE) is 2.1 mm. Besides, the compliance control experiments show that the robot’s tracking error in an impedance control mode is less than 2 mm, and the RMSE is 0.95 mm. Moreover, the dragging force in a teaching mode is less than 2.5 N. The proposed integrated cable-driving module could be helpful for the modular design and deployment of CDPRs.
The rapid development of Internet technology in the new era has led to the prosperous development of the e-commerce industry, and more and more traditional retail enterprises are transforming into e-commerce enterprises in line with the development of the times to survive. Based on the relevant financial risk management theories, this paper designs an e-commerce investment risk management system for small and medium-sized enterprises based on the 5G intelligent sensor network, identify the financial risks arising from the e-commerce model, and takes appropriate countermeasures to manage the identified risks. For the optimal coverage problem of homogeneous terminals in the subnetwork of a smart sensing network, this paper introduces the concept of area coverage contribution, transforms the problem of selecting the optimal coverage subset in a large area into the problem of selecting the substrate particles, and organically combines the particle swarm algorithm in the bionic algorithm to consider the network survival period, area sensing coverage, and iteration cost for the hierarchical distributed large-scale IoT architecture. A minimum coverage subset dormancy scheduling algorithm based on homogeneous terminals is proposed. The simulation results are compared with the greedy algorithm and the multioptimized target task assignment algorithm, and it is demonstrated that this algorithm can consider multiple optimization objectives such as energy balance, scheduling cycle, timeout rate, network survival cycle, and system reliability and perform well in the case of large-scale deployment. Finally, an appropriate financial risk evaluation model is constructed to objectively evaluate the identified financial risks, and targeted financial risk control measures and suggestions are proposed based on four aspects: financing, investment, operation, and others.
The essence of the contract fraud is,motivated by the illegal occupation,to devise a trick and seize another person's belongings.To judge accurately the motive of the illegal occupation,compared with the fraud means,becomes the crux of deciding on the contract fraud in that there are no definite and specific legislative standards about it.In the judicial practice,making proper use of the criminal presumption rules,making an comprehensive analysis of the objective factors,such as the actor's particular fraud means,and presuming the subjective purpose of the illegal occupation,are very justifiable and necessary to prove the contract fraud.
网络文学的问世不仅极大改变了文学的写作生态，改变了文学文本的存在形式， 也改变了文学传播、阅读以及批评的原有格局，而且对传统文学的发展与存在也产生 了诸多具有实质性的影响。网络文学在十余年的发展过程中，其文学实践与理论研究 存在四个方面的突出问题：把互联网自身的技术特性简单等同于网络文学的特征；对 网络文学的理解依然存在认识误区；未能真正区分网络写作与传统写作的基本特征； 未能从理论上真正厘清网络文学文本与传统文学的根本性差异。 关键词: 网络文学 写作生态 传统写作 网络写作 The emergence of online literature has changed not only the ecology of literary composition and the form of existence of literary texts, but also the modes of dissemination, interpretation and criticism of literature. It also substantially challenges the survival and development of traditional literature. In the course of its development over the past decade, four obvious problems have been highlighted in practice and theoretical research: simple equation of the technological features of the Internet with the features of online literature, misconceptions about online literature, inability to distinguish between the basic traits of online and traditional writing and inability to understand the fundamental theoretical differences between online literary texts and traditional literature.
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