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章学诚文章写作教育观论略

语文学刊 2024年第1期44卷 103-108页

作者：张祖玲崔正升甘肃白银市白银区教育考试院甘肃白银730900 西北民族大学甘肃兰州730030

章学诚在长期的教学实践中积累了宝贵的写作教育经验。他以史学家的宽广视野考察作文教学,提出了一些独到观点,主要有:文史并重、迎机善导的初学入门观;倡论文德、积养学问的主体建构观;言之有物、有补于世的文章美学观;注重整体、先后... 详细信息

章学诚在长期的教学实践中积累了宝贵的写作教育经验。他以史学家的宽广视野考察作文教学,提出了一些独到观点,主要有:文史并重、迎机善导的初学入门观;倡论文德、积养学问的主体建构观;言之有物、有补于世的文章美学观;注重整体、先后有序的文体训练观。虽说章学诚主要是针对八股文写作教学而言,但放在今天看,其贯通文史、博综诸学的写作教育主张仍具有深刻的普遍意义和很强的现实针对性、指导性。

关键词：章学诚写作教育初学入门主体建构文体训练

An efficient and globally optimal solution to perspective-n-line problem

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Chinese Journal of Aeronautics 2022年第3期35卷 400-407页

作者： Qida YU Guili XU zhengsheng WANG Zhenhua LI College of Automation Engineering Nanjing University of Aeronautics and AstronauticsNanjing 211106China

This research develops an accurate and efficient method for the Perspective-n-Line(Pn L)problem. The developed method addresses and solves Pn L via exploiting the problem’s geometry in a non-linear least squares fashion. Specifically, by representing the rotation matrix with a novel quaternion parameterization, the Pn L problem is first decomposed into four independent subproblems. Then, each subproblem is reformulated as an unconstrained minimization problem, in which the Kronecker product is adopted to write the cost function in a more compact form. Finally, the Groobner basis technique is used to solve the polynomial system derived from the first-order optimality conditions of the cost function. Moreover, a novel strategy is presented to improve the efficiency of the algorithm. It is improved by exploiting structure information embedded in the rotation parameterization to accelerate the computing of coefficient matrix of a cost function. Experiments on synthetic data and real images show that the developed method is comparable to or better than state-of-the-art methods in accuracy, but with reduced computational requirements.

关键词： Camera pose estimation Grobner basis Machine vision Perspective-n-Line(PnL)problem Quaternion parameterization

Arnoldi Projection Fractional Tikhonov for Large Scale Ill-Posed Problems

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Transactions of Nanjing University of Aeronautics and Astronautics 2018年第3期35卷 395-402页

作者： Wang zhengsheng Mu Liming Liu Rongrong Xu Guili College of Science Nanjing University of Aeronautics and AstronauticsNanjing 210016P.N.China 2.Institute of AutomationNanjing University of Aeronautics and AstronauticsNanjing 210016P.N.China

It is well known that Tikhonov regularization in standard form may determine approximate solutions that are too smooth for ill-posed problems,so fractional Tikhonov methods have been introduced to remedy this *** Tikhonov regularization for large-scale linear ill-posed problems is commonly implemented by determining apartial Arnoldi decomposition of the given *** this paper,we propose a new method to compute an approximate solution of large scale linear discrete ill-posed problems which applies projection fractional Tikhonov regularization in Krylov subspace via Arnoldi *** projection fractional Tikhonov regularization combines the fractional matrices and orthogonal projection operators.A suitable value of the regularization parameter is determined by the discrepancy *** examples with application to image restoration are carried out to examine that the performance of the method.

关键词： ill-posed problems fractional matrix Tikhonov regularization orthogonal projection operator image restoration

气候变化下青藏高原中亚紫菀木潜在适生区的时空动态变化

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生态学杂志 2024年第6期43卷 1566-1575页

作者：李政升马玉寿李有鑫刘颖王彦龙王辛有青海大学青海省畜牧兽医科学院青海省高寒草地适应性管理重点实验室青海省青藏高原优良牧草种质资源利用重点实验室西宁810016 青海煤炭地质勘查院西宁810016

青藏高原在全球气候变化背景下展现出高度生态敏感性及脆弱性,而对其典型优势种的适生区时空动态进行预测既是实行生态恢复的前提,也能为制定保护对策提供依据。本研究以青藏高原温性荒漠草原的优势种中亚紫菀木(Asterothamnus centrali... 详细信息

青藏高原在全球气候变化背景下展现出高度生态敏感性及脆弱性,而对其典型优势种的适生区时空动态进行预测既是实行生态恢复的前提,也能为制定保护对策提供依据。本研究以青藏高原温性荒漠草原的优势种中亚紫菀木(Asterothamnus centraliasiaticus)为对象,基于MaxEnt模型,结合82条中亚紫菀木在青藏高原的有效分布记录和筛选后的6个生物气候变量,模拟预测中亚紫菀木在历史(全新世中期)、当前及未来4种气候排放浓度情景下的潜在分布区,并结合气候因子的贡献率及刀切法检验来分析制约中亚紫菀木地理分布的重要气候因子。结果表明:温度变量是影响青藏高原中亚紫菀木地理分布的主要气候限制因素,而降水变量是影响中亚紫菀木潜在地理分布的辅助生物气候变量;适合中亚紫菀木生长的最暖月最高温度(Bio5)范围为16.5~38.5℃,最暖季降水(Bio18)变化范围为55.0~1885.5 mm;从全新世中期到当前阶段是青藏高原中亚紫菀木种群扩张阶段,其种群主要聚集在青藏高原东北缘干旱半干旱地区;从当前到未来阶段,中亚紫菀木总适生区变化呈“先增加后降低”趋势,但中、高适生区却呈直线下降趋势;此外,中亚紫菀木在未来有逐渐向东迁移趋势。综合分析表明,在全球气候变化背景下,中亚紫菀木在青藏高原范围内的生存繁殖仍存在较大挑战。可根据其迁移趋势建立相关合理保护利用措施,以保持中亚紫菀木栖息地的连续性。

关键词：青藏高原温性荒漠草原中亚紫菀木 MaxEnt模型适生区分布

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李郑生运用调理脾胃法论治恶性肿瘤术后经验

中国民间疗法 2024年第12期32卷 33-35页

作者：杜亭亭张梦仙李郑生河南中医药大学河南郑州450003 河南中医药大学第三附属医院河南郑州450003

恶性肿瘤属于中医“癥积”范畴,近年来在临床中常见且多发。李郑生教授在治疗恶性肿瘤术后病证时,常用香砂六君子汤加减化裁,喜用姜厚朴-炒枳壳、小茴香-盐知母、桂枝-炒白芍、北柴胡-炒黄芩等对药,且重视配伍使用薏苡仁、赤芍、浙贝母... 详细信息

恶性肿瘤属于中医“癥积”范畴,近年来在临床中常见且多发。李郑生教授在治疗恶性肿瘤术后病证时,常用香砂六君子汤加减化裁,喜用姜厚朴-炒枳壳、小茴香-盐知母、桂枝-炒白芍、北柴胡-炒黄芩等对药,且重视配伍使用薏苡仁、赤芍、浙贝母、牡蛎、皂角刺、山慈菇、夏枯草、半枝莲等具有散结之功的药物。该文介绍李郑生教授运用调理脾胃法论治恶性肿瘤术后经验。

关键词：恶性肿瘤术后癥积调理脾胃扶正固本李郑生

Underwater Explosion Treatment of Marine Soft Foundation

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China Ocean Engineering 1991年第2期6卷 213-234页

作者： Zheng, Zhemin Yang, zhengsheng Jin, Liu Mechanics Inst of Chinese Acad of Sciences Beijing China

The consolidation of soft foundations is a problem that commonly appears in harbor construction engineering on muddy coasts. Introduced in this paper is the experimental study on underwater explosion treatment of soft foundations, including the regulation of explosion hollow development and medium movement, the law of similarity of densification and settlement of filled stone mass by shock wave pressure and explosion energy and their construction technologies, etc. A number of projects have been completed by applying this new technique, and the technique itself has been proved practicable.

关键词： Explosions Underwater

Instability characteristics of the cracked roof rock beam under shallow mining conditions

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International Journal of Mining Science and Technology 2018年第3期28卷 437-444页

作者： Zhao Yanhai Wang Shuren Zou zhengsheng Ge Linlin Cui Fang School of Civil Engineering Henan Polytechnic University School of Mining Engineering University of New South Wales

To establish the movement relationship for the roof breaking under shallow mining conditions, the mechanical model of the roof rock beam was built, then the structure instability process of the roof rock beam was analyzed. The changing criterion of the vertical displacement was established and the relationship between the deflection and the rotary motion of roof block was determined. Regarding a mining face in Shangwan Mine, the responsing laws of the deflection and horizontal thrust of the roof rock beam were obtained through FLAC3D numerical analysis. The results show that the structure instability of the cracked roof rock beam depends on the interaction between the vertical load and the horizontal *** the roof rock beam, when the vertical load keeps constant, the horizontal thrust fluctuating rises with increasing deflection. The horizontal thrust increases constantly with the deeper buried depth and the smaller span.

关键词： Shallow mining Working face Roof rock beam Structure stability Horizontal thrust

Role of ALDH2 in Hepatic Disorders: Gene Polymorphism and Disease Pathogenesis

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Journal of Clinical and Translational Hepatology 2021年第1期9卷 90-98页

作者： Qiaoling Wang Binxia Chang Xiaoyan Li zhengsheng Zou Peking University 302 Clinical Medical SchoolBeijingChina Diagnosis and Treatment Center for Non-Infectious Liver Diseases Fifth Medical Center of Chinese PLA General HospitalBeijingChina Anhui Medical University HefeiAnhuiChina

Aldehyde dehydrogenase 2(ALDH2)is a key enzyme of alcohol metabolism and it is involved in the cellular mechanism of alcohol liver ***2 gene mutations exist in about 8%of the world’s population,with the incidence reaching 45%in East *** mutations will result in impairment of enzyme activity and accumulation of acetaldehyde,facilitating the progression of other liver diseases,including non-alcoholic fatty liver diseases,viral hepatitis and hepatocellular carcinoma,through adduct formation and inflammatory *** this review,we seek to summarize recent research progress on the correlation between ALDH2 gene polymorphism and multiple liver diseases,with an attempt to provide clues for better understanding of the disease mechanism and for strategy making.

关键词： Aldehyde dehydrogenase 2 Gene polymorphisms Alcoholic liver disease Non-alcoholic fatty liver disease Viral hepatitis Hepatocellular carcinoma

Photochromatic Behavior of the Graft Copolymer of Starch and Azo-dye

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Chemical Research in Chinese Universities 2001年第Z1期17卷 236-237页

作者： FU zhengsheng Department of chemistry Northwest Normal University Guangzhou Institute of Chemical Chinese Academy of sciences

Photoisomerization (trans-cis) of azoaromatic compounds has been investigated extensively using absorption spectroscopy since 1950s[1]. By irradiation with light of wavelength λ1 or λ 2 ,the geometric configuration of the azo bond in azobenzene based compounds can be reversibly switched from trans to cis. The two states have distinct absorption spectra. This feature would allow reversible storage of data on the basis of cis and trans states with the aid of λ 1 and λ 2 . However, the cis state is thermodynamically unstable with respect to the trans state, therefore a thermal relaxation process occurs in the dark (at room temperature). This thermal back-reaction strongly limits the lifetime of the cis state, and it is influenced by the substituent R1 and R2, catalysts, temperature, and environment (solvent polarity, type of polymer matrix)[2].

关键词： geometric configuration absorption spectroscopy relaxation process absorption spectra room temperature