Geographical Indication and Unique Production Technology of Zhengcheng Honeysuckle

The specific production area,unique production environment,rich humanistic history and unique production quality of Zhengcheng honeysuckle,a featured product of Pingyi County,Shandong Province and a national geographic indication agricultural product are described in this article.The unique production method for Zhengcheng honeysuckle is summarized from the aspects of production area selection,variety selection,production management,harvesting,processing and packaging,and corresponding development measures for the industry are proposed,aiming to maintain the Zhengcheng honeysuckle brand to the greatest extent and further increase the popularity of Zhengcheng honeysuckle.

Transcranial electrical stimulation motor-evoked potentials in a spinal cord ischaemia rabbit model

Background:Spinal cord ischaemia animal models were established by selective ligation of the lumbar artery in a craniocaudal direction between the renal artery and the aortic bifurcation.Transcranial electrical stimulation motor-evoked potentials were measured to enable their use in future studies on spinal cord ischaemia protection.Methods:Thirty-three New Zealand rabbits were randomly divided into 6 groups.Transcranial electrical stimulation motor-evoked potentials were recorded before vascular ligation,30 min after vascular ligation,and 2days after vascular ligation.Motor functions were assessed after surgery and 2 days after vascular ligation.The specimens were taken 2 days after ligation for histopathologic observation.Results:With increased numbers of ligations,a transient extension of the latency became clear,but there were no significant differences in the statistical analysis.Analysis of variance after ligation at the same time in each group and t tests before and after ligation(P>0.05)were not significant.One or 2 ligations did not cause spinal cord ischaemic damage.There were no significant differences before and after ligation for the amplitude(P>0.05).With increased numbers of ligations,the amplitude before and after ligation was gradually reduced in the 3-5 ligation groups(P<0.05).Conclusions:Ligation of segmental spinal cord vessels on 1 or 2 levels did not cause ischaemic damage.Spinal cord ischaemia was observed after 3,4,or 5 ligations.The amplitude was more sensitive to spinal cord ischaemia than latency.Spinal cord function can be predicted by early changes in the amplitude.

Li_(x)Na_(2-x)W_(4)O_(13) nanosheet for scalable electrochromic device

The printed electronics technology can be used to efficiently construct smart devices and is dependent on functional inks containing well-dispersed active materials.Two-dimensional(2D)materials are promising functional ink candidates due to their superior properties.However,the majority 2D materials can disperse well only in organic solvents or in surfactant-assisted water solutions,which limits their applications.Herein,we report a lithium(Li)-ion exchange method to improve the dispersity of the Na_(2)W_(4)O_(13) nanosheets in pure water.The Li-ion-exchanged Na_(2)W_(4)0_(13)(Li_(x)Na_(2-x)W_(4)O_(13))nanosheets show highly stable dispersity in water with a zeta potential of-55 mV.Moreover,this aqueous ink can be sprayed on various substrates to obtain a uniform LixNa2_xW4O13 nanosheet film,exhibiting an excellent electrochromic performance.A complementary electrochromic device containing a Li_(x)Na_(2-x)W_(4)O_(13) nanosheet film as an electrochromic layer and Prussian white(PW)as an ion storage layer exhibits a large optical modulation of 75% at 700 nm,a fast switching response of less than 2 s,and outstanding cyclic stability.This Na2W4Oi3-based aqueous ink exhibits considerable potential for fabricating large-scale and flexible electrochromic devices,which would meet the practical application requirements.