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The Uniqueness of Decomposition of Symplectic Ternary Algebras with Trivial Center

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Journal of Mathematical Research and Exposition 2010年第3期30卷 423-428页

作者： xi Mei BAI wen li liU College of Mathematics and Computer Hebei University Hebei 071002 P. R. China

In this paper, the authors define the center of a Symplectic ternary algebra, and investigate the relationship between the center of a Symplectic ternary algebra and that of the lie triple system associated with it. As an application of the relationship, the unique decomposition theorem for Symplectic ternary algebras with trivial center is obtained.

关键词： Symplectic ternary algebras lie triple system center U-endomorphism.

Identification of Common Edible and Medicinal Mushrooms by DNA Barcoding

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World Journal of Traditional Chinese Medicine 2016年第3期2卷 10-16页

作者： Yan-Yan Su Huan Tang xi-wen li Wei Sun Zeng-Hua Chen li xiang Institute of Chinese Materia Medica China Academy of Chinese Medical Sciences Huaibei Normal University Beijing Qianjunfang Academy of Sciences

Objective:To identify common edible and medicinal mushrooms using the internal transcribed spacer(ITS) ***:A total of eighty-five samples belonging to forty-three species were used in this *** regions were amplified and *** ITS regions were analyzed using BLAST and MEGA 5.10 ***:Forty species were identified correctly via BLAST method whereas forty-one species were distinguished via Neighbor joining(NJ)*** the species could be distinguished by BLAST combined with NJ tree and ITS sequence ***:Forty-three common species of edible and medicinal mushrooms were effectively identified using DNA barcoding technology based on ITS region.

关键词： Edible mushroom Medicinal mushroom ITS DNA Barcoding

Water resource utilization characteristics and driving factors in the Hainan Island

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Journal of Groundwater Science and Engineering 2023年第2期11卷 191-206页

作者： Dun Wang li-xin Pei li-zhong Zhang xi-wen li Ze-heng Chen Yue-hu Zhou Haikou Marine Geological Survey Center China Geological SurveyHaikou 571100China Comprehensive Survey and Management Center for Natural Resources China Geological SurveyBeijing 100055China Chinese Academy of Geological Sciences Beijing 100037China

The scarcity of water resources caused by the unique topography and uneven rainfall distribution in Hainan Island has become a major factor restricting local development. In order to provide effective and scientific reference basis for the overall water resource utilization status and solving this problem, this study calculated the water resource utilization situation of Hainan Island from 2017 to 2021 in detail using methods including water resource ecological footprint analysis. Furthermore, a spatial correlation analysis was conducted to examine the island's water resource utilization characteristics, and the driving factors behind the changes in water resource utilization over the past five years were analyzed using the LMDI model. The results show that:(1) During the study period, the water resource ecological footprint in Hainan Island exhibited a slow growth trend, while the ecological carrying capacity showed a downward *** per capita ecological deficit of water resources remains relatively high, and the water consumption per 10 000 yuan GDP in the whole land continues to decrease, indicating that the overall pressure on water resource demand remains high with significant regional differences accompanied by the efficiency of water resource utilization steadily improving at the same time;(2) Agricultural water use accounts for the highest proportion in the entire water use structure, while ecological water use represents the smallest share, with a year-on-year increase, indicating that Hainan Island highlights the agricultural development and is increasingly conscious of the ecological environment;(3) Significant spatial differentiation in water resource utilization characteristics exists in Hainan Island, with the western region being a hot spot aggregation area for per capita water resource ecological footprint, per capita ecological carrying capacity of water resources, water consumption per 10 000 yuan GDP, while it is a cold spot cluster area fo

关键词： Ecological footprint Ecological carrying capacity Water consumption Moran'sⅠindex Cold/hot spot analysis LMDI model

A Method for Estimation of Wheat Yield Loss Caused by Drought in Northwestern China

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Agricultural Sciences in China 2004年第12期3卷 905-913页

作者： liUJing WANGlian-xi MAli-wen WUWan-li liUYu-lan SUNYin-chuan NingxiaKeyLaboratoryforMeteorologicalDisasterPreventionandReduction Yinchuan750002P.R.China／／YinchuanMeteorologicalObservatoryYinchuan750002P.R.China

To develop a suitable method for monitoring wheat yield loss caused by drought for dry farming areas in northwestern China, daily ET0 and ETC were calculated using KC and FAO- PM from 1961 to 2000, and wheat evapotranspiration with an interval of 10 days was estimated with soil water balance equation for the mountainous areas in southern Ningxia, China. Actual water consumption and water requirements of wheat during growing season was calculated using soil water balance equation by correcting leakage of soil water and run-off of precipitation every year. A model for estimation of yield loss by drought was established based on crop growth-water consumption function and yield potential. The results show that it is an effective method for monitoring drought and estimating yield loss. This method is suitable for monitoring drought and estimating yield loss of wheat in dry farming areas in northwestern China.

关键词： Drought Monitor Yield loss estimation

Identification of Dian Ji Xue Teng(Kadsura interior) with DNA barcodes

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World Journal of Traditional Chinese Medicine 2017年第1期3卷 11-15页

作者： Hao-Jie Guo xi-wen li Yao-Dong Qi Xue-Ping Wei Ben-Gang Zhang Hai-Tao liu Institute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Chinese Materia Medica China Academy of Chinese Medical Sciences

Objective: To identify Kadsura interior(Dian Ji Xue Teng, Schisandraceae) by using DNA ***: We analyzed five DNA barcodes(ITS, ITS2, psb A-trn H, mat K and rbc L) using DNA barcoding in terms of distance-based,tree-based and character-based identification to distinguish Kadsura interior and its ***: In distance-based and tree-based identification, K. interior could be distinguished easily from the species of Schisandra and K. *** character-based identification, there are two single nucleotide polymorphisms(SNPs) in ITS and one SNP in psb A-trn H which can be used to distinguish K. interior from K. heteroclita and K. ***: The results indicate that DNA barcoding can be used to identify K. interior. ITS and psb A-trnH sequence can be the most ideal DNA barcode for discriminating K. interior and its adulterants by the combination analysis of distance-based, tree-based and character-based identification(SNPs).

关键词： DNA barcoding Schisandraceae SNP Kadsura interior

SOliD-PHASE SYNTHESIS OF 4,5-DISUBSTITUTED 1,2,3-TRIAZOLES

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Chinese Chemical Letters 1991年第10期2卷 773-774页

作者： Chen xi li wen Qiang HUANG Yu LU Bing lin HE Institute of Polymer Chemistry, Nankai University, Tianjin, 300071

4-Aryl-5-ethoxycarbonyl-1-H-1,2,3-triazoles have been prepared by treatment of ethyl polystyrylsulfonylacetate with substituted benzaldehydes and then sodium azide.

关键词： OC IR NH KBr SOliD-PHASE SYNTHESIS OF 4,5-DISUBSTITUTED 1,2,3-TRIAZOLES Ph

Lysimachia septemfida(Primulaceae),a new species from Yunnan,China

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Plant Diversity 2016年第4期38卷 201-206页

作者： Ze-huan Wang xi-wen li En-de liu Fa-zhi Shangguan Xue-ke Chang Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of Sciences Nanjian Administration Bureau of Wuliangshan National Nature Reserve

A new species, Lysimachia septemfida(Primulaceae), from Yunnan(Southwest China) is described and illustrated. The new species exhibits several unusual characters in Lysimachia including lack of a corolla,7-merous flowers, leaves in whorls of 3 and distinct multicellular nodiferous hairs, which make it readily distinguishable from all other species in this genus. The diagnostic differences between this new species and its suppositive allies are given. In addition, the systematic placement of this new species is also discussed based on an ITS molecular tree.

关键词： Lysimachia septemfida Lysimachia New species Primulaceae Wunnan China

Complete Chloroplast Genome Sequences of Poisonous and Medicinal Plant Datura stramonium:organizations and implications for genetic engineering

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Complete Chloroplast Genome Sequences of Poisonous and Medic...

An efficient quantum proactive incremental learning algorithm

第十四届全国中药和天然药物学术研讨会

作者： Yuan-ye Dang Yang Yang Qing li Jin-jian Lu xi-wen li Yi-tao Wang University of Macau Second Military Medical University China Academy of Chinese Medical Sciences

＜正＞Datura stramonium is a widely used poisonous plant with great medicinal and economic *** here analyzed and characterized the chioroplast（cp）genome of ***,providing the basic genetic information for cp *** of t...

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 49-57页

作者： lingxiao li Jing li Yanqi Song Sujuan Qin Qiaoyan wen Fei Gao State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications School of Cyberspace Security Beijing University of Posts and Telecommunications

In scenarios where a large amount of data needs to be learned, incremental learning can make full use of old knowledge, significantly reduce the computational cost of the overall learning process, and maintain high performance. In this paper, taking the MaxCut problem as our example, we introduce the idea of incremental learning into quantum computing, and propose a Quantum Proactive Incremental Learning algorithm(QPIL). Instead of a one-off training of quantum circuit, QPIL contains a multi-phase training on gradually-increased subgraphs of all vertices, proactively reducing large-scale problems to smaller ones to solve in steps, providing an efficient solution for MaxCut. Specifically, some vertices and corresponding edges are randomly selected for training to obtain optimized parameters of the quantum circuit at first. Then, in each incremental phase, the remaining vertices and corresponding edges are gradually added and the parameters obtained from the previous phase are reused in the parameter initialization of the current phase. We perform experiments on 120 different small-scale graphs, and it shows that QPIL performs superior to prevalent quantum and classical baselines in terms of approximation ratio(AR), time cost, anti-forgetting, and solving stability. In particular, QPIL's AR surpasses 20% of mainstream quantum baselines, and the time cost is less than 1/5 of them. The idea of QPIL is expected to inspire efficient and high-quality solutions in large-scale Max Cut and other combinatorial optimization problems.

关键词： variational quantum algorithm incremental learning multi-phase training MaxCut quantum computing