A Conceptual Framework for E-Commerce Innovation in Chinese SMES Chun-Sheng Yu

As E-Commerce (EC) is rapidly gaining popularity in China, EC innovation becomes a major growth strategy for many SMEs. Meanwhile, problems and challenges are hindering proliferation of EC innovation. The need exits for a theoretical model to forge EC innovation: a dynamic process with progressive stages of both internal and external e-readiness. Derived from theories and evidenced by the case studies from Hangzhou, China, our conceptual framework reveals top management, organizational learning, government support, market forces, and technology readiness as essential in each development stage, but with different emphasis. Implications of the framework are discussed

Machine learning of quantum phase transitions

Machine learning algorithms provide a new perspective on the study of physical phenomena. In this paper, we explore the nature of quantum phase transitions using multi-color convolutional neural-network (CNN) in combination with quantum Monte Carlo simulations. We propose a method that compresses $d+1$ dimensional space-time configurations to a manageable size and then use them as the input for a CNN. We test our approach on two models and show that both continuous and discontinuous quantum phase transitions can be well detected and characterized. Moreover we show that intermediate phases, which were not trained, can also be identified using our approach.Comment: 6 pages, 5 figure

Editorial: Ecoepigenetics in Clonal and Inbreeding Plants: Transgenerational Adaptation and Environmental Variation, Volume Ii

Research was supported by grants from the National Natural Science Foundation of China (32071527) to F-HY, and the National Natural Science Foundation of China (31500331) to B-CDChina. National Natural Science Foundation; 32071527China. National Natural Science Foundation; 3150033

A supra-massive magnetar central engine for short GRB 130603B

We show that the peculiar early optical and in particular X-ray afterglow emission of the short duration burst GRB 130603B can be explained by continuous energy injection into the blastwave from a supra-massive magnetar central engine. The observed energetics and temporal/spectral properties of the late infrared bump (i.e., the "kilonova") are also found consistent with emission from the ejecta launched during an NS-NS merger and powered by a magnetar central engine. The isotropic-equivalent kinetic energies of both the GRB blastwave and the kilonova are about $E_{\rm k}\sim 10^{51}$ erg, consistent with being powered by a near-isotropic magnetar wind. However, this relatively small value demands that most of the initial rotational energy of the magnetar $(\sim {\rm a~ few \times 10^{52}~ erg})$ is carried away by gravitational wave radiation. Our results suggest that (i) the progenitor of GRB 130603B would be a NS-NS binary system, whose merger product would be a supra-massive neutron star that lasted for about $\sim 1000$ seconds; (ii) the equation-of-state of nuclear matter would be stiff enough to allow survival of a long-lived supra-massive neutron star, so that it is promising to detect bright electromagnetic counterparts of gravitational wave triggers without short GRB associations in the upcoming Advanced LIGO/Virgo era.Comment: Five pages including 1 Figure, to appear in ApJ

The Technology Study of Camshaft Treated by Laser Bionic Melting Process in Aqueous Media Cooling

Biomimetic coupling wear resistance model was created according to biomimetic coupling phenomenon and biomimetic coupling theory, utilize the preparation of aqueous media by laser cooling techniques, process biological coupling unit on the gray cast iron surface according to the organism form, make the bionic coupled unit in accordance with the laws of organism combination, form bionic coupling surface which is similar to the organism form with material surface to improve the wear resistance of the camshaft. Studies show, the region which dealt with aqueous media by laser can get small grains, and grain size is uniform, hardness and wear resistance is improved. Key words: bionic coupling; laser melting; camshaf