作者机构：
[Li, Long; Long, Zuqiang] Hengyang Normal Univ, Coll Math & Stat, Hengyang 421008, Hunan, Peoples R China.;[Qiao, Zhijun] Univ Texas Rio Grande Valley, Dept Math, Edinburg, TX 78539 USA.
通讯机构：
[Li, Long] H;Hengyang Normal Univ, Coll Math & Stat, Hengyang 421008, Hunan, Peoples R China.
期刊：
JOURNAL OF EXPERIMENTAL BOTANY,2019年70(15):3969-3979 ISSN：0022-0957
通讯作者：
Tang, Kexuan;Chen, Wansheng;Zhang, Lei
作者机构：
[Ma, Yanan; Li, Ling; Fu, Xueqing; Shen, Qian; Zhang, Fangyuan; Hao, Xiaolong; Zhang, Lida; Lv, Zongyou; Shi, Pu; Chen, Minghui; Tang, Kexuan; Yan, Tingxiang] Shanghai Jiao Tong Univ, Joint Int Res Lab Metab & Dev Sci, Key Lab Urban Agr South, Minist Agr,Plant Biotechnol Res Ctr,Fudan SJTU No, Shanghai 200240, Peoples R China.;[Chen, Wansheng; Lv, Zongyou] Second Mil Med Univ, Changzheng Hosp, Dept Pharm, Shanghai 200003, Peoples R China.;[Chen, Wansheng; Lv, Zongyou] Shanghai Univ Tradit Chinese Med, Res & Dev Ctr Chinese Med Resources & Biotechnol, Shanghai 201203, Peoples R China.;[Zhang, Lei; Guo, Zhiying] Second Mil Med Univ, Sch Pharm, Dept Pharmaceut Bot, Shanghai 200433, Peoples R China.;[Jiang, Weimin] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Tang, Kexuan; Chen, Wansheng; Zhang, Lei] S;[Zhang, Lei] Z;Shanghai Jiao Tong Univ, Joint Int Res Lab Metab & Dev Sci, Key Lab Urban Agr South, Minist Agr,Plant Biotechnol Res Ctr,Fudan SJTU No, Shanghai 200240, Peoples R China.;Second Mil Med Univ, Changzheng Hosp, Dept Pharm, Shanghai 200003, Peoples R China.;Shanghai Univ Tradit Chinese Med, Res & Dev Ctr Chinese Med Resources & Biotechnol, Shanghai 201203, Peoples R China.
摘要：
Artemisinin is a sesquiterpene lactone produced by the Chinese traditional herb Artemisia annua and is used for the treatment of malaria. It is known that salicylic acid (SA) can enhance artemisinin content but the mechanism by which it does so is not known. In this study, we systematically investigated a basic leucine zipper family transcription factor, AaTGA6, involved in SA signaling to regulate artemisinin biosynthesis. We found specific in vivo and in vitro binding of the AaTGA6 protein to a 'TGACG' element in the AaERF1 promoter. Moreover, we demonstrated that AaNPR1 can interact with AaTGA6 and enhance its DNA-binding activity to its cognate promoter element 'TGACG' in the promoter of AaERF1, thus enhancing artemisinin biosynthesis. The artemisinin contents in AaTGA6-overexpressing and RNAi transgenic plants were increased by 90-120% and decreased by 20-60%, respectively, indicating that AaTGA6 plays a positive role in artemisinin biosynthesis. Importantly, heterodimerization with AaTGA3 significantly inhibits the DNA-binding activity of AaTGA6 and plays a negative role in target gene activation. In conclusion, we demonstrate that binding of AaTGA6 to the promoter of the artemisinin-regulatory gene AaERF1 is enhanced by AaNPR1 and inhibited by AaTGA3. Based on these findings, AaTGA6 has potential value in the genetic engineering of artemisinin production.
摘要：
In order to broaden the study of the most popular and general Takagi-Sugeno (TS) system, we propose a complex-valued neuro-fuzzy inference system which realises the zero-order TS system in the complex-valued network architecture and develop it. In the complex domain, boundedness and analyticity cannot be achieved together. The splitting strategy is given by computing the gradients of the real-valued error function with respect to the real and the imaginary parts of the weight parameters independently. Specifically, this system has four layers: in the Gaussian layer, the L-dimensional complex-valued input features are mapped to a Q-dimensional real-valued space, and in the output layer, complex-valued weights are employed to project it back to the complex domain. Hence, split-complex valued gradients of the real-valued error function are obtained, forming the split-complex valued neuro-fuzzy (split-CVNF) learning algorithm based on gradient descent. Another contribution of this paper is that the deterministic convergence of the split-CVNF algorithm is analysed. It is proved that the error function is monotone during the training iteration process, and the sum of gradient norms tends to zero. By adding a moderate condition, the weight sequence itself is also proved to be convergent.
通讯机构：
[Li, Lang] H;Hengyang Normal Univ, Hunan Prov Key Lab Intelligent Informat Proc & Ap, Hengyang 421002, Peoples R China.;Hengyang Normal Univ, Coll Comp Sci & Technol, Hengyang 421002, Peoples R China.
关键词：
Block cipher;Internet of Things;Involution;Lightweight cryptography;SPN structure
摘要：
In past few years, as security ciphers in the Internet of Things (IoT), the research of lightweight block cipher has attracted tremendous attention in cryptography. The SPN structure has been widely used in the design of block cipher. However, the encryption and decryption processes of ciphers based on the SPN structure are different. We design a new SPN structure, which is perfect for lightweight block cipher. The new SPN structure makes that the encryption process is the same as decryption. Moreover, input and output data directions are the same for encryption and decryption processes. Thus, the same process can absolutely be shared in decryption and encryption both for software and hardware implementation. Further, we propose a family of involutional lightweight block cipher, called Loong, based on the proposed SPN structure and components. Rigorous analysis indicates that Loong is of high security against cryptanalysis, especially the differential attack and linear attack. As shown by our experiments and comparisons, Loong is compact in hardware environment and is suitable for the IoT.
期刊：
BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY,2019年99(3):421-431 ISSN：0004-9727
通讯作者：
Ponnusamy, Saminathan
作者机构：
[Li, Liulan] Henyang Normal Univ, Hunan Prov Key Lab Intelligent Informat Proc & Ap, Hengyang 421002, Hunan, Peoples R China.;[Ponnusamy, Saminathan] Indian Inst Technol Madras, Dept Math, Chennai 600036, Tamil Nadu, India.
通讯机构：
[Ponnusamy, Saminathan] I;Indian Inst Technol Madras, Dept Math, Chennai 600036, Tamil Nadu, India.
关键词：
convex in a direction;convex mapping;convolution;harmonic;slanted half-plane mapping;univalent
摘要：
Dorff et al. \cite{DN} formulated an open problem concerning the convolution of two right half-plane mappings, where the normalization of the harmonic mappings has been considered incorrectly. Without realizing the error, the present authors considered the open problem (see \cite[Theorem 2.2]{LiPo1} and \cite[Theorem 1.3]{LiPo2}). In this paper, we have reformulated the open problem in correct form and provided solution to it in a more general form. In addition, we also obtain two new results which correct and improve some other results.
摘要：
Conjugate gradient methods can be used with advantages such as fast convergence and low memory requirement in real applications. A conjugate gradient-based neuro-fuzzy learning algorithm for zero-order Takagi-Sugeno inference systems is proposed in this paper. Compared with the existing gradient-based algorithm, this method enhances the learning performance.
摘要：
<jats:p>While the existence of conformal mappings between doubly connected domains is characterized by their conformal moduli, no such characterization is available for harmonic diffeomorphisms. Intuitively, one expects their existence if the domain is not too thick compared to the codomain. We make this intuition precise by showing that for a Dini-smooth doubly connected domain <jats:italic>Ω*</jats:italic> there exists a <jats:italic>ε ></jats:italic> 0 such that for every doubly connected domain <jats:italic>Ω</jats:italic> with Mod<jats:italic>Ω* <</jats:italic> Mod<jats:italic>Ω <</jats:italic> Mod<jats:italic>Ω*</jats:italic> + <jats:italic>ε</jats:italic> there exists a harmonic diffeomorphism from <jats:italic>Ω</jats:italic> onto <jats:italic>Ω*</jats:italic>.</jats:p>
通讯机构：
[Li, L; Liu, BT] H;Hengyang Normal Univ, Coll Comp Sci & Technol, Hengyang 421002, Peoples R China.
关键词：
Hardware;Lyapunov methods;Security of data;Block ciphers;Encryption and decryption;Feistel networks;Hardware and software;Hardware environment;Lightweight;Lightweight block ciphers;Security evaluation;Cryptography
摘要：
During past few years, some lightweight block ciphers have been proposed. These lightweight block ciphers take single encryption method that either uses Substitution-Permutation (SP) network structure or Feistel network structure to encrypt. In this paper, we have designed a different encryption method that takes both SP network structure and Feistel network structure to encrypt. Current SP network has a limitation that the encryption and decryption processes are dissimilar. To solve this problem, we have employed involution related properties of the nonlinear and linear components to modify SP network structure. The modified one enables the encryption and decryption program or circuit to work as the Feistel network structure. Additionally, we have implemented a MixRows in SP network structure. Then we instantiate these three novel ideas into the lightweight block cipher called SFN. We have carried out the security evaluation and the hardware and software experiments to it. The result shows that compared to other lightweight block ciphers, SFN has more advantages in terms of being immune to attacks. Also, SFN is not only compact in hardware environment but also efficient in software platforms.
作者机构：
[Chen, Yuan; Li, Long] Hengyang Normal Univ, Coll Math & Stat, Hengyang 421008, Peoples R China.;[Qiao, Zhijun] Univ Texas Rio Grande Valley, Sch Math & Stat Sci, Edinburg, TX 78539 USA.;[Liu, Yan] Dalian Polytech Univ, Dept Appl Math, Dalian 116034, Peoples R China.
通讯机构：
[Li, Long] H;Hengyang Normal Univ, Coll Math & Stat, Hengyang 421008, Peoples R China.
