How CRISPR is changing agriculture?

Caixia Gao 한국육종학회 2019 한국육종학회 학술발표회지 Vol.2019 No.-

Efficient conversion of fructose to 5-[(formyloxy)methyl]furfural by reactive extraction and in-situ esterification

Caixia Xiong,Yong Sun,Juan Du,Wei Chen,Zhihao Si,He Gao,Xing Tang,Xianhai Zeng 한국화학공학회 2018 Korean Journal of Chemical Engineering Vol.35 No.6

5-[(Formyloxy)methyl]furfural (FMF), an analogue of 5-(hydroxymethyl)furfural (HMF) is becoming more attractive due to its superior stability and hydrophobicity, which make it easier to refineand store. In the present study, FMF was produced from fructose by one-pot approach in pure formic acid media or by a two-step approach via HMF in choline chloride (ChCl)/fructose deep eutectic solvents (DES) system. A favorable FMF yield of 63.22% was reached by two-step approach. In addition, the effects of reaction parameters, such as temperature and acidity, on preparation of FMF from fructose were systematically investigated. The dehydration of fructose into HMF was confirmed as the rate-controlling step in the consecutive reaction. Ultimately, the separation and purification procedures of FMF were put forward. The FMF with a purity of 98.8% was obtained finally. Meanwhile, the FMF purified by saturated sodium bicarbonate solution showed an excelled storage stability.

Phosphoproteomic profiling of myofibrillar and sarcoplasmic proteins of muscle in response to salting

Caixia Zhang,Zhenyu Wang,Zheng Li,Qingwu Shen,Lijuan Chen,Lingling Gao,Dequan Zhang 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.4

A phosphoproteomic profile of myofibrillar and sarcoplasmic proteins of muscle inresponse to salting was investigated. Myofibrillar and sarcoplasmic proteins extracted from saltedmeat with 0, 1, 2, 3, 4, and 5% salt for 0, 2, 4, 6, 8, and 16 h were analyzed by SDS-PAGE electrophoresisand fluorescence staining. The global phosphorylation of myofibrillar proteins in salted meat was lowerthan that in control muscle at 16 h of salting (p<0.05), and the global phosphorylation of myofibrillarproteins in 3% salt-treated group at 16 h was the lowest. However, salting showed no significant effecton phosphorylation of sarcoplasmic proteins. Four categories of phosphorylated protein wereidentified by LC-MS/MS, involved in stress response (heat shock protein), glycometabolism (glycogenphosphorylase, glyceraldehyde-3-phosphate dehydrogenase), oxidation or reduction (superoxidedismutase), and others (myoglobin), the phosphorylation of which was affected by salting. Thus,salting may influence meat quality through protein phosphorylation, which regulates proteindegradation and glycolysis.

Wavelet-domain Image Restoration Model Based on Variation Regularization

Caixia Li,Chanjuan Liu,Hailin Zou 보안공학연구지원센터(IJSIP) 2014 International Journal of Signal Processing, Image Vol.7 No.2

Positive solution and ground state solution for a Kirchhoff type equation with critical growth

Caixia Chen,Aixia Qian 대한수학회 2022 대한수학회보 Vol.59 No.4

In this paper, we consider the following Kirchhoff type equation on the whole space $$\left\{\aligned &-(a+b\int_{\mathbb{R}^{3}}|\nabla u|^{2}dx)\triangle u = u^{5} + \lambda k(x)g(u), \ x\in \mathbb{R}^{3},\\ & u\in\mathcal{D}^{1,2}(\mathbb{R}^{3}),\endaligned\right.$$ where $\lambda>0$ is a real number and $k, g$ satisfy some conditions. We mainly investigate the existence of ground state solution via variational method and concentration-compactness principle.

Transcranial direct current stimulation for spinal cord injury-associated neuropathic pain

( Caixia Li ),( Sukunya Jirachaipitak ),( Paul Wrigley ),( Hua Xu ),( Pramote Euasobhon ) 대한통증학회 2021 The Korean Journal of Pain Vol.34 No.2

Several types of pain occur following spinal cord injury (SCI); however, neuropathic pain (NP) is one of the most intractable. Invasive and non-invasive brain stimulation techniques have been studied in clinical trials to treat chronic NP following SCI. The evidence for invasive stimulation including motor cortex and deep brain stimulation via the use of implanted electrodes to reduce SCI-related NP remains limited, due to the small scale of existing studies. The lower risk of complications associated with non-invasive stimulation, including transcranial direct current stimulation (tDCS) and repetitive transcranial magnetic stimulation (rTMS), provide potentially attractive alternative central neuromodulation techniques. Compared to rTMS, tDCS is technically easier to apply, more affordable, available, and potentially feasible for home use. Accordingly, several new studies have investigated the efficacy of tDCS to treat NP after SCI. In this review, articles relating to the mechanisms, clinical efficacy and safety of tDCS on SCI-related NP were searched from inception to December 2019. Six clinical trials, including five randomized placebo-controlled trials and one prospective controlled trial, were included for evidence specific to the efficacy of tDCS for treating SCI-related NP. The mechanisms of action of tDCS are complex and not fully understood. Several factors including stimulation parameters and individual patient characteristics may affect the efficacy of tDCS intervention. Current evidence to support the efficacy of utilizing tDCS for relieving chronic NP after SCI remains limited. Further strong evidence is needed to confirm the efficacy of tDCS intervention for treating SCI-related NP.

Nonlinear impulsive system of microbial production in fed-batch culture and its optimal control

Caixia Gao,Yanhuai Lang,Enmin Feng,Zhilong Xiu 한국전산응용수학회 2005 Journal of applied mathematics & informatics Vol.19 No.1-2

In this study the optimal control of fed-batch glycerol fermentation is investigated based on an impulsive dynamical system. Considering the sudden increase of the glycerol and alkali in fed-batch culture of biodissimilation of glycerol to 1,3- propanediol, this paper proposes a nonlinear impulsive system of fed-batch culture. The existence, uniqueness and regularity properties of piecewise solution for the system are proved. In view of the controllability of volumes of glycerol added to the reactor instantaneously, the paper constructs an optimal control model based on the nonlinear impulsive system and the existence of the optimal control is obtained. The control variables here are the moments and the sizes of jumps in the states at the discrete instants and the objective is to maximize the productivity of 1,3-propanediol over one cycle.

The Effects of Consumer Cosmopolitanism and Consumer Ethnocentrism on Cross-border E-commerce in China

Caixia Liu,홍진환 한국무역연구원 2020 무역연구 Vol.16 No.3

Purpose This study examines how consumer cosmopolitanism and ethnocentrism is related to Chinese cross-border e-commerce(CBEC) consumers’ purchase intention and channel choice. Particularly, we focused on CBEC channel choice (foreign or local) and investigated its relationship with consumer cosmopolitanism and ethnocentrism. Design/Methodology/Approach The data were collected from Chinese CBEC consumers. To test our hypotheses, we developed a questionnaire based on previous literature and the questionnaire survey was conducted. Based on the empirical data from 231 Chinese CBEC consumers, we analyzed the data with structural equation model. Findings Our results found that consumer cosmopolitanism is more positively related with foreign CBEC than local CBEC regarding purchase intention, while consumer ethnocentrism is not significantly related with CBEC regarding purchase intention. Research Implications This study examines a new and emerging phenomenon of Chinese cross-border e-commerce, and the results implies that managers involved in cross-border e-commerce in the Chinese market can make better use of the cosmopolitanism and ethnocentrism variable in marketing.

Contribution to the knowledge of the genus Ainu Lewis, 1894 (Coleoptera: Tenebrionidae: Stenochiinae)

Caixia Yuan,Maxim Nabozhenko,Guodong Ren 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.4

The genus Erulipus Fairmaire, 1903 (previously in the subfamily Tenebrioninae, tribe Helopini), after the study of the type species (Erulipus fruhstorferi Fairmaire, 1903), is transferred to the genus Ainu Lewis, 1894 (subfamily Stenochiinae, the tribe Cnodalonini) as a subgenus. Consequently, two new combinations are established: Ainu (Erulipus) fruhstorferi (Fairmaire, 1903), comb. nov. and Ainu (s. str.) multicolor (Pic, 1927), comb. nov. The syntypes of Erulipus fruhstorferi and Erulipus multicolor Pic, 1927 are studied and the new synonym is proposed: Erulipus fruhstorferi = Ainu grandis Ren and Yuan, 2005, syn. nov. Two new species are described from China: Ainu linwenxini Nabozhenko & Ren, sp. nov. (Taiwan) and Ainu basifemoratum Nabozhenko & Ren, sp. nov. (Yunnan). Both the new species are closely related to A. sichuanum Ren and Yuan, 2015.

The Improved Wavelet Threshold Function and Its Application

DENG Caixia,CHEN Xiaxia,LI Siqi,XU Yanxin 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.7

Images will produce noise in the process of storage and collection. Wavelet threshold de-noising is a simple and effective de-noising method, but the choice of threshold function is a key. The hard-threshold function is discontinuous and there is the deviation between the signal processed by the soft-threshold function and the real signal, so this paper constructs a new threshold function at the origin sufficiently smooth to deal with above problems. A parameter is added to the new threshold function, which is between the soft-threshold and hard-threshold function by adjusting the parameter. The new threshold function can remove the noise effectively, and the image information is well preserved. Hence it plays an important role in follow-up edge detection. The de-noising method with improved wavelet threshold is presented, and then uses morphological edge detection on the new image in this paper. The result shows that the method can detect the complete edge effectively, and the visual effect and objective evaluation are good.