The privacy-preserving problem for distributed fusion estimation scheme is concerned in this paper.When legitimate user wants to obtain consistent information from multiple sensors,it always employs a fusion center(FC...The privacy-preserving problem for distributed fusion estimation scheme is concerned in this paper.When legitimate user wants to obtain consistent information from multiple sensors,it always employs a fusion center(FC)to gather local data and compute distributed fusion estimates(DFEs).Due to the existence of potential eavesdropper,the data exchanged among sensors,FC and user imperatively require privacy preservation.Hence,we propose a distributed confidentiality fusion structure against eavesdropper by using Paillier homomorphic encryption approach.In this case,FC cannot acquire real values of local state estimates,while it only helps calculate encrypted DFEs.Then,the legitimate user can successfully obtain the true values of DFEs according to the encrypted information and secret keys,which is based on the homomorphism of encryption.Finally,an illustrative example is provided to verify the effectiveness of the proposed methods.展开更多
The catalysis of montmorillonite K10(MK10)for aryl O-glycosylation of glycosyl trichloroacetimidates was investigated.It was found that the catalyst MK10 is deactivated gradually in the recycle glycosylation.The fresh...The catalysis of montmorillonite K10(MK10)for aryl O-glycosylation of glycosyl trichloroacetimidates was investigated.It was found that the catalyst MK10 is deactivated gradually in the recycle glycosylation.The fresh and the deactivated catalysts were characterized by X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),Thermogravimetric analysis(TGA),and N_(2)adsorption-desorption.The results show that the eliminated trichloroacetamide molecule deposits on the MK10,which blocks and poisons the active sites,resulting in the deactivation of the catalyst.The regeneration of the deactivated MK10 by calcination was studied preliminarily.展开更多
基金supported in part by the National Natural Sci-ence Foundation of China(No.61973277)in part by the Zhejiang Provincial Natural Science Foundation of China(No.LR20F030004)in part by the Major Key Project of PCL(No.PCL2021A09).
文摘The privacy-preserving problem for distributed fusion estimation scheme is concerned in this paper.When legitimate user wants to obtain consistent information from multiple sensors,it always employs a fusion center(FC)to gather local data and compute distributed fusion estimates(DFEs).Due to the existence of potential eavesdropper,the data exchanged among sensors,FC and user imperatively require privacy preservation.Hence,we propose a distributed confidentiality fusion structure against eavesdropper by using Paillier homomorphic encryption approach.In this case,FC cannot acquire real values of local state estimates,while it only helps calculate encrypted DFEs.Then,the legitimate user can successfully obtain the true values of DFEs according to the encrypted information and secret keys,which is based on the homomorphism of encryption.Finally,an illustrative example is provided to verify the effectiveness of the proposed methods.
基金The financial supports from the National Natural Science Foundation of China(Grant Nos.20672027 and 20972039)the Natural Science Foundation of Hebei(B2008000588)。
文摘The catalysis of montmorillonite K10(MK10)for aryl O-glycosylation of glycosyl trichloroacetimidates was investigated.It was found that the catalyst MK10 is deactivated gradually in the recycle glycosylation.The fresh and the deactivated catalysts were characterized by X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),Thermogravimetric analysis(TGA),and N_(2)adsorption-desorption.The results show that the eliminated trichloroacetamide molecule deposits on the MK10,which blocks and poisons the active sites,resulting in the deactivation of the catalyst.The regeneration of the deactivated MK10 by calcination was studied preliminarily.
