Spider silk is capturing the attention of scientists for its mechanical properties, biocompatibility, and biodegradability. Spiders can produce six types of silks, as well as special glue, which are used for survival and reproduction. During the last year
The multilayer impedance composite sound absorption structure of the new muffler is proposed by combining the microporous plate structure with the resonant sound absorption structure of the porous material. Firstly, the acoustic impedance and acoustic abs
In order to deal with the hard machining of TC4 alloy, coated graphite on grinding wheel surface by electrostatic device is proposed in this paper. This paper mainly completed the design of graphite electrostatic spraying grinding wheel device, force expe
Aiming at the lack of professional knowledge to guide apparel recommendation, an apparel recommendation method based on image design expert knowledge has been proposed. Then, apparel recommendation knowledge graphs have been created and a apparel recommen
A novel method of constructing sentiment lexicon of new words ( SLNW ) is proposed to realize effective Weibo sentiment analysis by integrating existing lexicons of sentiments, lexicons of degree, negation and network. Based on left-right entropy and mutu
The parent and radical-modified chitin units are computationally studied and the parent chitin unit possesses closed-shell singlet ( CS ) state as its ground state. Two radicals ( CH3· and CH3 CH2·) are chosen to modify the parent chitin unit. Calculation
The static ε-consensus problem for a high-order linear multi-agent system is studied over a connected undirected communication topology, in which the state measurements of neighbors are affected by unknown but bounded( UBB ) noises. Using the dead-zone fu
We consider the global existence and decay of integral solutions to the parabolic-parabolic Keller-Segel system in d-dimension. On the one hand, by Banach fixed point theorem and some properties of heat kernel, we prove the local existence and the global
Principal component analysis ( PCA ) has been already employed for fault detection of air conditioning systems. The sliding window, which is composed of some parameters satisfying with thermal load balance, can select the target historical fault-free refe