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Distinct Electronic Structure for the Extreme Magnetoresistance in YSb
He, Junfeng,Zhang, Chaofan,Ghimire, Nirmal J.,Liang, Tian,Jia, Chunjing,Jiang, Juan,Tang, Shujie,Chen, Sudi,He, Yu,Mo, S.-K.,Hwang, C. C.,Hashimoto, M.,Lu, D. H.,Moritz, B.,Devereaux, T. P.,Chen, Y. L American Physical Society 2016 Physical Review Letters Vol.117 No.26
Jiang, Jun,Bai, Zi Long,Chen, Zhi Hui,He, Long,Zhang, David Wei,Zhang, Qing Hua,Shi, Jin An,Park, Min Hyuk,Scott, James F.,Hwang, Cheol Seong,Jiang, An Quan Nature Publishing Group, a division of Macmillan P 2018 NATURE MATERIALS Vol.17 No.1
Erasable conductive domain walls in insulating ferroelectric thin films can be used for non-destructive electrical read-out of the polarization states in ferroelectric memories. Still, the domain-wall currents extracted by these devices have not yet reached the intensity and stability required to drive read-out circuits operating at high speeds. This study demonstrated non-destructive read-out of digital data stored using specific domain-wall configurations in epitaxial BiFeO<SUB>3</SUB> thin films formed in mesa-geometry structures. Partially switched domains, which enable the formation of conductive walls during the read operation, spontaneously retract when the read voltage is removed, reducing the accumulation of mobile defects at the domain walls and potentially improving the device stability. Three-terminal memory devices produced 14 nA read currents at an operating voltage of 5 V, and operated up to T = 85 °C. The gap length can also be smaller than the film thickness, allowing the realization of ferroelectric memories with device dimensions far below 100 nm.
Jiang-He Zhao,Wei-Dong Xie,Tong Shen,Xia Yang,Hong Zhao,Xia Li 대한약학회 2012 Archives of Pharmacal Research Vol.35 No.7
A new eremophilane sesquiterpenoid, namely, 3β-angeloyloxy-6β,8β-dihydroxy-9β-senecioyloxyeremophil-7(11)-en-12,8α-lactone, along with eight known sesquiterpenoids, was isolated from the rhizome of Farfugium japonicum. The structures of all isolates were identified based on analyses of spectroscopic data (HRESIMS, IR, 1D, and 2D NMR) and comparison with literature data. The inhibitory effects of compounds 1-4 on nitric oxide production in lipopolysaccaride-activated mouse macrophages were also evaluated.
He, Jiang-Bo,Zhu, Hua-Jie,Luo, Gui-Fen,Liu, Guang-Ming,Chen, Hao,Li, Yan,Chen, Shaopeng,Lu, Xin,Zhou, Guochun,Cheng, Yong-Xian Korean Chemical Society 2010 Bulletin of the Korean Chemical Society Vol.31 No.8
The whole plant of Euphorbia helioscopia is an important traditional Chinese medicine. Fom its BuOH soluble extract, one new lactam (1), three new terpenoids (2-4) including a new naturally occurring compound, and three known compounds were isolated. Their structures were identified by spectroscopic evidences. In particular, the absolute configurations of side chain of compounds 1 and 2 were determined using computational methods.
Fundamental period estimation of steel frames equipped with steel panel walls
Liqiang Jiang,Xingshuo Zhang,Lizhong Jiang,Chang He,Jihong Ye,Yu Ran 국제구조공학회 2021 Structural Engineering and Mechanics, An Int'l Jou Vol.78 No.6
Steel frames equipped with beam-only-connected steel panel wall (SPWF) system is one type of lateral resisting systems. The fundamental period is necessary to calculate the lateral force for seismic design, however, almost no investigations have been reported for the period estimation of SPWF structures, both in theoretically and in codes. This paper proposes a simple theoretical method to predict the fundamental periods of the SPWF structures based on the basic theory of engineering mechanics. The proposed method estimates the SPWF structures as a shear system of steel frames and a shear-flexure system of SPWs separately, and calculates the fundamental periods of the SPWF structures according to the integration of lateral stiffness of the steel frames and the SPWs along the height. Finite element method (FEM) is used to analyze the periods of 45 case steel frames or SPWF buildings with different configurations, and the FEM is validated by the test results of four specimens. The errors cannot be ignored between FEM and theoretical results due to the simplifications. Thus the finial formula is proposed by correcting the theoretical equations. The relative errors between the periods predicted from the final proposed formula and the results of FEM are no more than 4.6%. The proposed formula could be reliably used for fundamental period estimation of new, existing and damaged SPWF buildings.
Xu Jiang He,Liu Qing Tian,AndrewB. Barron,Cui Guan,Hao Liu,Xiaobo Wu,Zhi Jiang Zeng 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.4
In a honey bee colony, worker bees rear a newqueen by providing herwith a larger cell inwhich to develop and alarge amount of richer food (royal jelly). Royal jelly and worker jelly (fed to developing worker larvae) differ interms of sugar, vitamin, protein and nucleotide composition. Here we examined whether workers attendingqueen andworker larvae are separate specialized sub-castes of the nurse bees.We collected nurse bees attendingqueen larvae (AQL) and worker larvae (AWL) and compared gene expression profiles of hypopharyngeal glandtissues, using Solexa/Illumina digital gene expression tag profiling (DGE). Significant differences in gene expressionwere found that included a disproportionate number of genes involved in glandular secretion and royal jellysynthesis. However behavioral observations showed that thesewere not two entirely distinct populations. Nurseworkers were observed attending both worker larvae and queen larvae, and there was no evidence of a specializedgroup of workers that preferentially or exclusively attended developing queens. Nevertheless, AQL attendedlarvaemore frequently compared toAWL, suggesting that nurses sampled attending queen larvaemay have beenthe most active nurses. This study serves as another example of the relationship between differences in gene expressionand behavioral specialisation in honey bees.
Software Defect Model Based on Similarity and Association Rule
Wan Jiang Han,He Yang Jiang,Tian Bo Lu,Xiao Yan Zhang,Weijian Li 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.7
In order to detect defects efficiently and improve the quality of products, this paper puts forward the concept about defect classification model and defect association model by a lot of defect data. The technology of similarity is applied to defect classification model, and the idea of Knowledge Discovery in Database is applied to defect association model. Defect classification model can analyze the defect efficiently and provides the basis of solving problems quickly while defect association model can be used to detect early and prevent problem, which can make effective improvements for testing and development. This paper summed up GUI defect model based on a large number of interface defects. The model is useful to improve the accuracy of forecast and be used for test planning and implementation through the practice of several projects.
Memory Nonfragile Output Feedback Robust MPC for Polytopic Timedelayed Systems with Constraints
Xing He,Wei Jiang,Caisheng Jiang 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.2
This paper investigates memory nonfragile mixed-objective output feedback robust model predictive control (OFRMPC) for a class of uncertain systems subjected to physical constraint, bounded disturbance, unmeasurable delayed state and possible controller fragility. By employing a delay-independent Lyapunov-Krasovskii function and linear matrix inequality (LMI) framework, novel sufficient conditions for the proposed memory nonfragile OFRMPC are derived to asymptomatically stabilize the closed-loop system with guaranteed H∞/H2 performance for all admissible polytopic uncertainties, external disturbance, state delay, and additive or multiplicative gain perturbation. A key technique for this controller is the online optimization of an infinite-horizon objective function followed by a memory output feedback control law based on the pre-specified offline state estimator using modified quadratic bounded conditions. Moreover, the input constraint and the recursive feasibility have been further guaranteed via additional LMI-based conditions. Finally, a numerical example is given to illustrate the effectiveness of the proposed OFRMPC approach.
Li-he Jiang,Xuan Luo,Wen ai He,Xiu-xiang Huang,Ting-ting Cheng 대한약학회 2011 Archives of Pharmacal Research Vol.34 No.12
In this study, the mechanism of H_2S protection in the hippocampus of heroin-treated rats was investigated. Male Sprague-Dawley rats were randomly divided into three groups: a saline group, a heroin and saline group, and a heroin and sodium hydrosulfide group. According to the principle of increasing heroin dosage daily, heroin withdrawal was precipitated on day 9with an injection of naloxone (5 mg/kg, i.p.), and withdrawal symptoms were scored. The levels of cystathionine-β-synthase, H_2S, reduced glutathione and malondialdehyde, as well as the levels of cleaved caspase-3, Bax, and Bcl-2 proteins and the activities of superoxide dismutase, catalase, and glutathione peroxidase were assayed in the hippocampus. The results showed that exogenous H_2S alleviated heroin withdrawal symptoms. Moreover, exogenous H_2S not only increased cellular H_2S and the cystathionine-β-synthase protein level activity but also significantly improved heroin-induced oxidative stress. Protein expression of cleaved caspase-3 and Bax decreased, whereas Bcl-2 protein levels in hippocampus increased with exogenous H_2S. Exogenous H_2S alleviated heroin-induced rat hippocampal damage through antioxidant and antiapoptosis effects.