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Design Strategy of Infrared 4-Hydroxybenzylidene-imidazolinone-Type Chromophores based on Intramolecular Charge Transfer:a Theoretical Perspective

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Chinese Journal of Chemical Physics 2023年第5期36卷 582-592,I0002页

作者： Jian Song WenLong Liang shouning yang Huayan yang School of Physics Henan Normal UniversityXinxiang 453007China NMPA Key Laboratory for Research and Evaluation of Innovative Drug Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiang 453007China

Partial genetically encoded 4-hy-droxybenzylidene-imidazolinone(HBI)-type chromophores are new promising fluorescent probes,which are suitable for imaging and detection of living ***-ever,the lack of infrared chro-mophores hinders the develop-ment *** more than 30 HBI-type chromophores with reg-ular structure modifications were employed and typical spectral redshift change laws and mechanisms were investigated by quantum *** show that both one-photon spectrum(OPS,absorption/emission)and two-photon absorption(TPA)can achieve large redshift via either extending conjugated lengths of frag-3 or enlarging conjugated areas of frag-1 of HBI *** redshifts of all chromophores are highly related to intramolecular charge transfer(ICT),but neutral ones are closely related to the total ICT or electron-accept-ing-numbers of frag-3,and the high correlative factor of anions is the aromaticity of frag-2 *** frag-2 bridge with high aromaticity can open a reverse charge transfer channel in anion relative to neutral,obtaining significant *** on analysis,a new 6-hydroxyl-naphthalene-imidazolinone(HNI)series,which have larger conjugated area in frag-1,are *** OPS and TPA of anionic HNI ones acquire about 76−96 nm and 119−146 nm red-shift relative to traditional HBI series respectively as a *** longest emission of anionic HNI-4 realizes more 244 nm redshift relative to *** work clarifies worthy spectral reg-ularities and redshift mechanisms of HBI-type chromophores and provides valuable design strategy for infrared chromophores synthesis in experiment.

关键词： Intramolecular charge transfer Near-infrared fluorescent chromophore 4-Hy-droxybenzylidene-imidazolinone One-photon spectrum Two-photon absorption

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恩替卡韦的合成

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中国医药工业杂志 2013年第7期44卷 657-659页

作者：杨守宁张磊胡文浩杨琍苹华东师范大学化学系上海200062 上海清松制药有限公司上海201417

(1S,2S,3S,5S)-3-苄氧基-5-[6-苄氧基-2-[(三苯甲基)氨基]-9H-嘌呤-9-基]-2-[(苄氧基)甲基]环戊醇在碳酸氢钠作用下先被TEMPO/碘氧化,所得产物再与由镁/四氯化钛/二氯甲烷/THF形成的亚甲基化体系反应生成(1S,3R,4S)-N-(三苯甲基)-6-苄氧... 详细信息

(1S,2S,3S,5S)-3-苄氧基-5-[6-苄氧基-2-[(三苯甲基)氨基]-9H-嘌呤-9-基]-2-[(苄氧基)甲基]环戊醇在碳酸氢钠作用下先被TEMPO/碘氧化,所得产物再与由镁/四氯化钛/二氯甲烷/THF形成的亚甲基化体系反应生成(1S,3R,4S)-N-(三苯甲基)-6-苄氧基-9-[[2-亚甲基-4-苄氧基-3-(苄氧基)甲基]环戊基]-9H-嘌呤-2-胺(4),在三氯化硼/甲醇/水的作用下脱除保护基制得恩替卡韦,总收率约44%。

关键词：恩替卡韦抗乙肝病毒药合成

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PROJECTED GRADIENT DESCENT BASED ON SOFT THRESHOLDING IN MATRIX COMPLETION

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Journal of Electronics(China) 2013年第6期30卷 517-524页

作者： Zhao Yujuan Zheng Baoyu Chen shouning Institute of Signal Processing and Transmission Nanjing University of Posts and Telecommunications College of Mathematics and Information Jiangsu Second Normal University

Matrix completion is the extension of compressed *** compressed sensing,we solve the underdetermined equations using sparsity prior of the unknown ***,in matrix completion,we solve the underdetermined equations based on sparsity prior in singular values set of the unknown matrix,which also calls low-rank prior of the unknown *** paper firstly introduces basic concept of matrix completion,analyses the matrix suitably used in matrix completion,and shows that such matrix should satisfy two conditions:low rank and incoherence *** the paper provides three reconstruction algorithms commonly used in matrix completion:singular value thresholding algorithm,singular value projection,and atomic decomposition for minimum rank approximation,puts forward their shortcoming to know the rank of original *** Projected Gradient Descent based on Soft Thresholding(STPGD),proposed in this paper predicts the rank of unknown matrix using soft thresholding,and iteratives based on projected gradient descent,thus it could estimate the rank of unknown matrix exactly with low computational complexity,this is verified by numerical *** also analyze the convergence and computational complexity of the STPGD algorithm,point out this algorithm is guaranteed to converge,and analyse the number of iterations needed to reach reconstruction *** the computational complexity of the STPGD algorithm to other algorithms,we draw the conclusion that the STPGD algorithm not only reduces the computational complexity,but also improves the precision of the reconstruction solution.

关键词： Matrix Completion (MC) Compressed Sensing (CS) Iterative thresholding algorithm Projected Gradient Descent based on Soft Thresholding (STPGD)

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A METHOD OF IMAGE QUALITY ASSESSMENT FOR COMPRESSIVE SAMPLING VIDEO TRANSMISSION

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Journal of Electronics(China) 2012年第6期29卷 598-603页

作者： Chen shouning Zheng Baoyu Li Jing Institute of Signal Processing and Transmission Nanjing University of Posts and Telecommunications

Based on compressive sampling transmission model, we demonstrate here a method of quality evaluation for the reconstruction images, which is promising for the transmission of unstructured signal with reduced dimension. By this method, the auxiliary information of the recovery image quality is obtained as a feedback to control number of measurements from compressive sampling video stream. Therefore, the number of measurements can be easily derived at the condition of the absence of information sparsity, and the recovery image quality is effectively improved. Theoretical and experimental results show that this algorithm can estimate the quality of images effectively and is in well consistency with the traditional objective evaluation algorithm.

关键词： Compressive sampling Image quality assessment Measurements feedback

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Short Text Classification Based on Improved ITC

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Journal of Computer and Communications 2013年第4期1卷 22-27页

作者： Liangliang Li shouning Qu School of Information Science and Engineering University of Jinan Jinan China

The long text classification has got great achievements, but short text classification still needs to be perfected. In this paper, at first, we describe why we select the ITC feature selection algorithm not the conventional TFIDF and the superiority of the ITC compared with the TFIDF, then we conclude the flaws of the conventional ITC algorithm, and then we present an improved ITC feature selection algorithm based on the characteristics of short text classification while combining the concepts of the Documents Distribution Entropy with the Position Distribution Weight. The improved ITC algorithm conforms to the actual situation of the short text classification. The experimental results show that the performance based on the new algorithm was much better than that based on the traditional TFIDF and ITC.

关键词： ITC Text Classification Short Text

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Research and Implementation of Text Similarity System Based on Power Spectrum Analysis

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Journal of Computer and Communications 2014年第6期2卷 7-17页

作者： Ying Xie shouning Qu Huanhuan Song Information Network Center University of Jinan Jinan China School of Information Science and Engineering University of Jinan Jinan China

The paper proposed the research and implement of text similarity system based on power spectrum analysis. It is not difficult to imagine that the signals of brain are closely linked with writing process. So we build text modeling and set pulse signal function to get the power spectrum of the text. The specific detail is getting power spectrum from economic field to build spectral library, and then using the method of power spectrum matching algorithm to judge whether the test text belonged to the economic field. The method made text similarity system finish the function of text intelligent classification efficiently and accurately.

关键词： Pulsing Signal Function Power Spectrum Matching Algorithm Text Similarity System Text Intelligent Classification

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Effects of Anwei decoction on the protein expression of TFF in rats with chronic atrophic gastritis

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Modern Research in Inflammation 2014年第1期3卷 1-6页

作者： Wei Wei shouning Lin Yongping Zhu Digestive System Department Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine Nanning China Guangxi University of Chinese Medicine Nanning China

Objective: To explore the effects of Anwei decoction (AD) on the protein expression of TFF in rats with chronic atrophic gastritis(CAG). Methods: Forty-eight healthy rats were randomly divided into 4 groups: normal control group, pathologic model group, Anwei Decoction group, and Weifuchun group. CAG was induced in rats with N-methy-N-nitro-N-nitrogua-nidine (MNNG). The protein expression of TFF in rats’ gastric mucosa was determined by immunohistochemistry. Results: Compared with that in the normal control group, the protein expression of TFF1 was significantly enhanced in the pathologic model, Anwei Decoction and Weifuchun groups (both P TFF1 was significantly higher in the Anwei Decoction group than in the Weifuchun group (P 0.05). Conclusion: Anwei decoction may be effective in the treatment of CAG by enhancing the protein expression of TFF1, TFF2 while reducing that of TFF3 in gastric mucosas.

关键词： Anwei Decoction Atrophic Gastritis TFF1 TFF2 TFF3 Experimental Research

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Research of Collaborative Filtering Recommendation Algorithm for Short Text

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Journal of Computer and Communications 2014年第14期2卷 59-66页

作者： Chunxu Chao shouning Qu Tao Du School of Information Science and Engineering University of Jinan Jinan China The Center of Information Network University of Jinan Jinan China

Short text, based on the platform of web2.0, gained rapid development in a relatively short time. Recommendation systems analyzing user’s interest by short texts becomes more and more important. Collaborative filtering is one of the most promising recommendation technologies. However, the existing collaborative filtering methods don’t consider the drifting of user’s interest. This often leads to a big difference between the result of recommendation and user’s real demands. In this paper, according to the traditional collaborative filtering algorithm, a new personalized recommendation algorithm is proposed. It traced user’s interest by using Ebbinghaus Forgetting Curve. Some experiments have been done. The results demonstrated that the new algorithm could indeed make a contribution to getting rid of user’s overdue interests and discovering their real-time interests for more accurate recommendation.

关键词： Short Text Personalized Recommendation Time Weight Function

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参蛤纳气口服液对肺肾虚喘小鼠防治作用的研究

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中药材 2000年第7期23卷 405-407页

作者：贾守宁青海省中医药研究所西宁810000

参蛤纳气口服液具有益气培元、纳气归根之功效,临床用于治疗肺肾两虚所致的咳喘。本研究采用木瓜蛋白酶吸入和腹腔注射氢化可的松造成肺肾虚喘小鼠疾病模型;并同时灌服参蛤纳气口服液予以治疗。结果显示:该药具有良好的防治肺气肿发生... 详细信息

参蛤纳气口服液具有益气培元、纳气归根之功效,临床用于治疗肺肾两虚所致的咳喘。本研究采用木瓜蛋白酶吸入和腹腔注射氢化可的松造成肺肾虚喘小鼠疾病模型;并同时灌服参蛤纳气口服液予以治疗。结果显示:该药具有良好的防治肺气肿发生的作用,并可提高小鼠游泳耐力,提高小鼠御寒能力和防治胸腺萎缩的作用,还能提高小鼠肺组织中SOD的活力,降低MDA的含量。

关键词：参蛤纳气口服液肺肾虚喘模型抗应激能力

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跨界河流水功能区水质达标率计算方法研究

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灌溉排水学报 2021年第8期40卷 99-105页

作者：曾宪忠郝守宁贵州省松柏山水库管理处贵阳550025 西藏农牧学院西藏林芝860000

跨界河流涉及上下游多个行政区域,其水功能区水质达标率计算是跨界河流水功能区限制纳污红线管理的重点和难点。【目的】计算扣除上游入境来水影响后的跨界河流水功能区水质达标率。【方法】通过构建水质数学模型提出了定量化的跨界河... 详细信息

跨界河流涉及上下游多个行政区域,其水功能区水质达标率计算是跨界河流水功能区限制纳污红线管理的重点和难点。【目的】计算扣除上游入境来水影响后的跨界河流水功能区水质达标率。【方法】通过构建水质数学模型提出了定量化的跨界河流水功能区水质达标率计算方法,以辽河流域的招苏台河为典型案例验证了该计算方法。【结果】①2017年招苏台河吉辽缓冲区、招苏台河黑岗农业用水区、招苏台河黄酒馆农业用水区、条子河吉辽缓冲区和条子河林家农业用水区的水质达标率分别为100.0%、33.3%、33.3%、100.0%、91.7%。②该方法有效扣除了上游入境来水对下游水功能区水质的影响,计算得到的水功能区水质达标率高于常规计算方法。【结论】该计算方法比常规计算方法更为合理,可为跨界河流水功能区管理和水资源保护提供科学支撑。

关键词：水功能区水质达标率跨界河流水质模型

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