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Nonsingularity of Feedback Shift Registers of Degree at Most Three over a Finite Field

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Chinese Journal of Electronics 2021年第2期30卷 232-237页

作者： liu junying JIANG Yupeng ZHENG Qunxiong LIN Dongdai School of Mathematics and Statistics Shandong University of Technology State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences State Key Laboratory of Cryptology PLA Strategic Support Force Information Engineering University

As a kind of generators of pseudorandom sequences, the Feedback shift register(FSR) is widely used in channel coding, cryptography and digital communication. A necessary and sufficient condition for the nonsingularity of a feedback shift register of degree at most three over a finite field is established. Using the above result, we can easily determine the nonsingularity of a feedback shift register from the algebraic normal form of the corresponding feedback function.

关键词： cryptography Boolean functions corresponding feedback function algebra random sequences finite field digital communication feedback channel coding shift registers nonsingularity feedback shift register

Natural biopolymers derived hydrogels with injectable,self-healing,and tissue adhesive abilities for wound healing

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Nano Research 2023年第2期16卷 2798-2807页

作者： Bin Kong Rui liu Yi Cheng Xiaodong Cai junying liu Dagan Zhang Hui Tan Yuanjin Zhao Department of Rheumatology and Immunology The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing 210002China Respiratory department Shenzhen Children's HospitalShenzhen 518038China Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhou 325001China

Developing a biocompatible and multifunctional adhesive hydrogel with injectability and self-healing ability for promoting wound healing is highly anticipated in various clinical *** this paper,we present a novel natural biopolymer-derived hydrogel based on the aldehyde-modified oxidized guar gum(OGG)and the carboxymethyl chitosan(CMCS)for efficiently improving wound healing with the encapsulation of vascular endothelial growth factor(VEGF).As the hydrogels are synthesized via the dynamically reversible Schiff base linkages,it is imparted with excellent self-healing ability and good shear thinning behavior,which make the hydrogel be easily and conveniently injected through a ***,the physiochemical properties,including porous structure,mechanical strength and swelling ratio of the hydrogel can be well controlled by regulating the concentrations of the ***,the hydrogel can attain strong adhesion to the tissues at physiological temperature based on the Schiff base between the aldehyde group on the hydrogel and the amino group on the *** on these features,we have demonstrated that the VEGF encapsulated hydrogel can adhere tightly to the defect tissue and improve wound repair in the rat model of defected skin by promoting cell proliferation,angiogenesis,and collagen *** results indicate that the multifunctional hydrogel is with great scientific significance and broad clinical application prospects.

关键词： hydrogel self-healing injectability tissue adhesive wound healing

Sedimentary Characteristics and Paleoenvironmental Records of Zabuye Salt Lake,Tibetan Plateau,since 128 ka BP

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Acta Geologica Sinica(English Edition) 2007年第5期81卷 861-874页

作者： ZHENG Mianping YUAN Heran liu junying LI Yanhe MA Zhibang SUN Qing Key Laboratory of Saline Lake Resources and Environment Ministry of Land and Resources Beijing 100037 Institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 National Research Center of Geoanalysis Beijing 100037

This paper for the first time reveals high-resolution core records of Zabuye Salt Lake in the interior of the Qinghai-Tibet Plateau. According to 1346 samples taken continuously, relatively accurate 14^C, U-series disequilibrium and ESR ages have been obtained, thus revealing that the lake core ages from 0 to 83.63 m of hole SZK02 are -800 to over 128 ka. In the paper, the lake core sedimentary characteristics （including the lithologies and mineral assemblages） are analyzed in detail and correlated with ostracod assemblages I to XX and sporopollen zones A to I, and on the basis of an integrated analysis of the δ^18O values of authigenic calcium-magnesium carbonate and environmental proxies of minerals, sporopollen and microfossils in the lake core, a correlation has been made of oxygen isotope change between this lake core and the Greenland GISP2 and GRIP and Guliya ice cores, and the climate of Zabuye Salt Lake since 128 ka BP is divided into the last interglacial stage （including substages e, d, c, b and a） of oxygen isotope stage （OIS） 5, early glacial stadial of the last glacial stage of OIS 4, interglacial stadial of the last glacial stage of OIS 3, late glacial stadial of the last glacial stage or Last Glacial Maximum of OIS 2 and postglacial state of OIS 1; in addition, 6 Heinrich （H6-H1） events, Younger Dryas event and 8.2 ka BP cold event have been recognized.

关键词： Zabuye Salt Lake 130 ka BP sedimentary characteristics paleoenvironmental record

Enhanced photocatalytic water splitting with surface defective SrTiO_(3)nanocrystals

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Frontiers in Energy 2021年第3期15卷 700-709页

作者： junying liu Zhidong WEI Wenfeng SHANGGUAN Institute of Physical Chemistry University of HamburgGrindelallee 11720146 HamburgGermany Research Center for Combustion and Environment Technology Shanghai Jiao Tong UniversityShanghai 200240China

Surface reconstructed SrTiO_(3)nanocrystals were synthesized by a thermal treatment process in presence of NaBH_(4)and SrTiO_(3)*** surface reconstruction of SrTiO_(3)nanocrystals is attributed to the introduction of surface oxygen vacancies or Ti sites(such as Ti^(3+)and Ti^(2+))during the hydrogenation treatment *** light absorption and the charge transfer ability of SrTiO_(3)nanocrystals are simultaneously enhanced due to surface oxygen vacancies or Ti sites(such as Ti^(3+)and Ti^(2+)),which are beneficial to photocatalytic water ***,these defects also change the redox potential of the *** there existed a synergistic effect between the three,the ratio of hydrogen to oxygen production was also regulated.

关键词： SrTiO_(3) surface reconstruction oxygen vacancies photocatalytic water splitting

STUDENTS' METACOGNITIVE KNOWLEDGE IN ENGLISH LANGUAGE LISTENING

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Chinese Journal of Applied Linguistics 1999年第3期22卷 5-10页

作者： liu junying Anshun Teachers College

This article reports on a diary study that revealed beliefs and knowledge second language learn-ers had about their *** an analysis of the diaries of 35 ESL learners,it was found that manyof them had clear ideas about three aspects of listening:their own role,the demands and strategies *** article discusses the implications of these findings for the teaching and learning of listeningin ELT programmes and calls for more discussion to increase learners’ metacognitive awareness in listen-ing.

关键词： STUDENTS METACOGNITIVE KNOWLEDGE IN ENGLISH LANGUAGE LISTENING

Thinking on PE Activities in Primary Schools

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Journal of Contemporary Educational Research 2020年第2期4卷 94-96页

作者： junying liu Primary School attached to Xi'an University of Technology Shanxi ProvincesChina

With the continuous development of teaching,educators focus more on the cultivation of the comprehensive ability of primary school *** in primary schools is drawing more and more ***,how to efficiently carry out physical teaching activities in primary schools becomes a big issue for the relative teaching staff to think about because of the uniqueness of the educational group.

关键词： Primary school students PE Teaching activities Thinking

Discovery of Fossil Charophytes from the Late Triassic Xujiahe Formation and Early Jurassic Lower Yimen Formation, Sichuan Province, and Its Significance

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Acta Geologica Sinica(English Edition) 1992年第3期66卷 301-309,327页

作者： liu junying Chen Zhongliang Institute of Geology, Chinese Academy of Geological Sciences, Beijing Panxi Geological Party, Sichuan Bureau of Geology and Mineral Resources, Xichang liu Linqun Institute of Geology Chinese Academy of Geological Sciences Beijing China

This paper describes the fossil charophytes collected from the Late Triassic Xujiahe Formation in Dazuand Early Jurassic Lower Yimen Formation in Xichang, Sichuan Province, and their significance. Up to now,papers dealing with fossil charophytes of the Late Triassic, especially of the Early Jurassic, have been rarelypublished. The description of the two new species of Porochara, P. dazuensis and P. xichangensis, and theirfossil assemblage not only provides an important basis for classification and correlation of red beds insouthwestern China but reveals for the first time the features of the charophyte flora of the Late Triassic-EarlyJurassic in the area, thus offering valuable data for the establishment of Triassic and Jurassic charophyte fossilzones in China.

关键词： Sichuan Late Triassic Early Jurassic charophyte fossil

A review on photocatalysis in antibiotic wastewater:Pollutant degradation and hydrogen production

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Chinese Journal of Catalysis 2020年第10期41卷 1440-1450页

作者： Zhidong Wei junying liu Wenfeng Shangguan Research Center for Combustion and Environment Technology Shanghai Jiao Tong UniversityShanghai 200240China Center of Hydrogen Science Shanghai Jiao Tong UniversityShanghai 200240China

Surveys on antibiotics have become one of the most popular topics in the recent two decades. From 1998 to 2018, more than 5,000 articles concentrated on the research of antibiotic wastewater treatment have been published. Among them, photocatalysis has received much attention due to its green and environmental-friendly properties. In this mini-review, the recent progress of photocatalysis in antibiotic wastewater was summarized, including antibiotics degradation and hydrogen energy conversion. The photocatalysts commonly used were also discussed. It can be mainly classified as TiO2-based materials, sulfides and polymeric carbon nitride-based materials and bismuth-contained materials. Four major types of antibiotics, tetracycline, sulfonamide, β-lactam and quinolone, were involved. Furthermore, perspectives concentrated on future development and challenges, especially converting antibiotics into hydrogen energy, were also proposed.

关键词： Photocatalytic Antibiotics Degradation Hydrogen Energy Thermodynamic

构建生殖中心辅助生育治疗患者护理质量评价指标体系

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中国实用护理杂志 2019年第7期35卷 544-548页

作者：王玲徐静刘君颖李岩刘川吴慧群同济大学附属上海第十人民医院生殖中心 200072 同济大学附属上海第十人民医院血液科 200072

目的构建辅助生育治疗护理质量评价指标体系,为科学地评价生殖中心护理质量提供依据。方法基于结构-过程-结果(SPO)质量模型为理论基础,应用文献查询、现场流程追踪、德尔菲专家函询和层次分析法,构建生殖中心辅助生育治疗护理质量评... 详细信息

目的构建辅助生育治疗护理质量评价指标体系,为科学地评价生殖中心护理质量提供依据。方法基于结构-过程-结果(SPO)质量模型为理论基础,应用文献查询、现场流程追踪、德尔菲专家函询和层次分析法,构建生殖中心辅助生育治疗护理质量评价指标体系。结果专家函询两轮问卷有效回收率(RR)均为100%;专家权威系数Cr值分别为0.813、0.845;协调系数W值分别为0.331、0.372,均有统计学意义(P<0.01)。最终形成了三大维度、14个二级指标、47个条目的辅助生育治疗护理质量评价指标体系;运用Yaaph软件确定了一级和二级指标权重,并通过一致性检验(Cr<0.1),三级条目的变异系数均<0.20。结论生殖中心辅助生育治疗护理质量指标体系权重分配合理,指标明确,具有系统性和客观性,值得临床推广。

关键词：护理辅助生育治疗质量结构德尔菲法评价指标