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勤真能补拙
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作者 程维杨 李玉国 邱道学 《中学生数理化(高一使用)》 2010年第7期5-5,共1页
“熟能生巧,勤能补拙”,现在我真正相信这八个字是真理了.
关键词 《勤真能补拙》 中学生 作文 程维杨
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虎·李逵·勤自励 被引量:1
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作者 石麟 《湖北师范学院学报(哲学社会科学版)》 2003年第3期122-122,共1页
关键词 《水浒传》 《勤自励》 小说 李逵 情节结构
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基于小学书法教学的微课程开发——以颜真卿楷书《勤礼碑》笔法教学为例 被引量:1
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作者 魏晓伟 《新课程研究(上旬)》 2016年第1期42-44,共3页
基于书法教学的现状,可采用书法教学与微课相结合。即以学校书法教育方面擅长书法的老师为课程资源,依据《书法练习指导》的具体要求和学生身心发展的特点,选用楷书颜真卿《勤礼碑》为学习范本,开发书法系列微课程(笔法教学、笔画运用... 基于书法教学的现状,可采用书法教学与微课相结合。即以学校书法教育方面擅长书法的老师为课程资源,依据《书法练习指导》的具体要求和学生身心发展的特点,选用楷书颜真卿《勤礼碑》为学习范本,开发书法系列微课程(笔法教学、笔画运用、结构教学),从而促进中小学生书法素养的提高。 展开更多
关键词 小学书法教学 微课 《勤礼碑》书法教学
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勤换你的牙刷
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作者 阿D 《小学生(低幼版)》 2004年第10期56-56,共1页
人们每天都要刷牙,牙刷也就成了日常消耗(hao)品。有些人非得用到刷毛全“趴”下才去换新的,他们哪里知道这“节约”的举动是很有害的。经研究发现。
关键词 《勤换你的牙刷》 小学教育 语文教学 阅读材料
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颜真卿《勤礼碑》的结字空间特点
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作者 黄美琼 《美与时代(美术学刊)(中)》 2018年第4期79-80,共2页
唐代是楷书最繁荣的时期,颜真卿是这时期承前启后的大书法家,是新书体的创作者。颜真卿,字清臣,祖籍琅琊临沂(今山东临沂),至北齐颜之推入周后,世居京兆万年(陕西西安)。开元进士,曾为平原太守,故世称颜平原。因平定安史之乱有功,... 唐代是楷书最繁荣的时期,颜真卿是这时期承前启后的大书法家,是新书体的创作者。颜真卿,字清臣,祖籍琅琊临沂(今山东临沂),至北齐颜之推入周后,世居京兆万年(陕西西安)。开元进士,曾为平原太守,故世称颜平原。因平定安史之乱有功,升任吏部尚书、太子太师,封鲁郡开国公,故世称颜鲁公。颜真卿书法作品留世非常之多,我们所熟知的《雁塔提名》《多宝塔感应碑》《东方朔画赞》《勤礼碑》等,每一个碑帖都是一种风格。 展开更多
关键词 《勤礼碑》 颜真卿 空间 结字 山东临沂 承前启后 安史之乱 书法作品
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勤难补拙
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作者 王栋 《课堂内外(创新作文)(高中版)》 2010年第9期51-51,共1页
忠诚是美德.但忠诚过头变得愚蠢,就显得可笑。勤奋是优点,若太过勤奋伴随盲目,则令人可悲。
关键词 高中 课外阅读 阅读材料 《勤难补拙》
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勤工俭学在推进素质教育中的作用
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作者 汤艳 《中国科教创新导刊》 2009年第12期209-209,共1页
从全面推进素质教育,深化教育改革,为实施科教兴国战略奠定坚实的人才和知识基础角度出发,着重阐述素质教育的内涵,并对通过发展勤工俭学推动素质教育提出自己的看法。
关键词 素质 素质教育 工俭学
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Studies of Soil Physical Property on Different Abandoned Lands in the Minqin Oasis,Downstream of the Shiyang River 被引量:1
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作者 郭春秀 王理德 +6 位作者 韩福贵 马剑平 何芳兰 刘淑娟 王方琳 张莹花 魏林源 《Agricultural Science & Technology》 CAS 2015年第5期1014-1018,共5页
The vast area of farmland was abandoned at downstream of the Shiyang River because of decreased water recourse. To ensure the ecological safety of Minqin Oasis and to provide management basis for the abandoned land, s... The vast area of farmland was abandoned at downstream of the Shiyang River because of decreased water recourse. To ensure the ecological safety of Minqin Oasis and to provide management basis for the abandoned land, soil physical properties were observed and studied. The authors analyzed land with abandonment time of 1 year, 2 years, 3 years, 4 years, 5 years, 8 years, 15 years, 24 years and 31 years. Samples were took at the 0-40 cm layer of soil to measure the bulk density, porosity and grain composition of soil in the different abandoned lands. Results showed that the tendency of clay content was decreasing, conversely, the fine sand increased at the layer of 0-10 cm of different abandoned lands.The changes of grain content reached a peak at the fourth year after the land was abandoned, then varied slightly. The variation of grain content of abandoned land was obvious with the extension of the abandonment year. The soil bulk density decreased and porosity increased with the extension of the abandonment year. The difference of porosity and soil bulk density at the range of 0-40 cm of different abandoned land decreased after the land abandoned for 3 years. The quality of soil was decreased, while the soil permeability was improved. The soil physical properties changed obviously in 3 to 4 years after abandonment, so it is the key time for land management. 展开更多
关键词 Minqin Oasis Abandoned land Abandoned years Soil physical properties
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Research on Stability of Desert Climate of Minqin County in Gansu Province
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作者 常兆丰 王大为 +1 位作者 韩福贵 段晓峰 《Agricultural Science & Technology》 CAS 2015年第12期2833-2838,共6页
In order to study the stability of desert climate, the instability of climate in Minqin desert in response to global warming during 1961-2013 was analyzed by sliding standard deviation and a linear trend line. The res... In order to study the stability of desert climate, the instability of climate in Minqin desert in response to global warming during 1961-2013 was analyzed by sliding standard deviation and a linear trend line. The results show that the instabili- ty of average temperature in January and April increased, and the isothermal date in February was 10.36 d earlier from 1961 to 2013. The instability of extreme maxi- mum temperature in December and January improved. The instability of extreme minimum temperature in July instability also increased. The coefficient of variation of extreme minimum temperature in May was up to 287.3%. It is concluded that the instability of desert climate of Minqin County increased with global warming. The stability of climate is more worthy of attention. 展开更多
关键词 Global warming Desert climate INSTABILITY Minqin
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Studies of Soil Physical Properties and Community Characteristics of Different Abandoned Lands in the Minqin Oasis,Downstream of the Shiyang River
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作者 郭春秀 何芳兰 +6 位作者 马剑平 安富博 马俊梅 袁宏波 赵鹏 刘克彪 申国峰 《Agricultural Science & Technology》 CAS 2016年第7期1697-1701,共5页
[Objective] The aim was to explore physical properties and community characteristics of abandoned lands in different years in Minqin Oasis, downstream of the Shiyang River, [Method] The evolution of environment and pl... [Objective] The aim was to explore physical properties and community characteristics of abandoned lands in different years in Minqin Oasis, downstream of the Shiyang River, [Method] The evolution of environment and plant community characteristics in different abandoned lands were analyzed after abandonment for 1, 2, 3, 4, 5, 8, 15, 24 and 31 years, and the plant community characteristics, water content, bulk density, porosity and mechanical composition of soil in the different a- bandoned lands were also researched in the Minqin Oasis, downstream of the Shiyang River. [Result] Plant of 32 species spread over 14 family live through fifty years appeared in abandoned lands in the study area. Shrubs was 6 species, herbs was 26 species among them, which were 18.75%, 81.25% respectively. The goose- foot family (6 species), the composite family(4 species),the grass family(4 species), caltrop family(3 species) were 53.13% among them. Within the range of 0-40 cm of different abandoned Land, the soil moisture content showed a trend of first increase and then decrease with the increase of soil depth changes in soil bulk density and porosity of less obvious. In the range of 0-40 cm soil depth, the largest proportion of fine sand, followed by silt and clay and the smallest proportion of coarse sand in every plot, but the proportion of the each silt size varies little with the years aban- doned. [Conclusion] The research provides references for vegetation reconstruction and eco-environment construction in abandoned lands in downstream of Shiyang River. 展开更多
关键词 Minqin Oasis Abandoned land Years abandoned Soil physical proper- ties Vegetation characteristics
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The Information Modeling and Intelligent Optimization Method for Logistics Vehicle Routing and Scheduling with Multi-objective and Multi-constraint 被引量:2
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作者 李蓓智 周亚勤 +1 位作者 兰世海 杨建国 《Journal of Donghua University(English Edition)》 EI CAS 2007年第4期455-459,466,共6页
The vehicle routing and scheduling (VRS) problem with multi-objective and multi-constraint is analyzed, considering the complexity of the modern logistics in city economy and daily life based on the system engineering... The vehicle routing and scheduling (VRS) problem with multi-objective and multi-constraint is analyzed, considering the complexity of the modern logistics in city economy and daily life based on the system engineering. The objective and constraint includes loading, the dispatch and arrival time, transportation conditions,total cost,etc. An information model and a mathematical model are built,and a method based on knowledge and biologic immunity is put forward for optimizing and evaluating the programs dimensions in vehicle routing and scheduling with multi-objective and multi-constraints. The proposed model and method are illustrated in a case study concerning a transport network, and the result shows that more optimization solutions can be easily obtained and the method is efficient and feasible. Comparing with the standard GA and the standard GA without time constraint,the computational time of the algorithm is less in this paper. And the probability of gaining optimal solution is bigger and the result is better under the condition of multi-constraint. 展开更多
关键词 modern logistics vehicle scheduling routing optimization MULTI-OBJECTIVE multi-constraint biologic immunity information modeling
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Empirical analysis on TFP change in Chinese logistics industry: A nonparametric Malmquist index approach 被引量:5
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作者 LIU Yang WU Yu-hua 《Chinese Business Review》 2007年第4期35-39,56,共6页
Through a nonparametric Malmquist index approach, this paper analyzes the total factor productivity change in China's logistics industry with panel data of logistics listed corporation from 1999 to 2006, which decomp... Through a nonparametric Malmquist index approach, this paper analyzes the total factor productivity change in China's logistics industry with panel data of logistics listed corporation from 1999 to 2006, which decomposed into technical efficiency and technical progress. The result shows: (1) The average growth rate of Chinese logistics corporations from 1999 to 2006 is 0.4%, which is mainly due to the improvement of technical efficiency; (2) Technical progress which took the negative effect of the decline could not be neglected; (3) The role of technical efficiency and technical progress are different with time varying. 展开更多
关键词 total factor productivity (TFP) data envelopment analysis (DEA) technical efficiency technological progress
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Transitions in a Logistic Growth Model Induced by Noise Coupling and Noise Color 被引量:2
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作者 SHI Jin ZHU Shi-Qun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第1X期175-182,共8页
With unified colored noise approximation, the logistic growth model is used to analyze cancer cell population when colored noise is included. It is found that both the coupling between noise terms and the noise color... With unified colored noise approximation, the logistic growth model is used to analyze cancer cell population when colored noise is included. It is found that both the coupling between noise terms and the noise color can induce continuous first-order-like and re-entrance-like phase transitions in the system. The coupling and the noise color can also increase tumor cell growth for small number of cell mass and repress tumor cell growth for large number of cell mass. It is shown that the approximate analytic expressions are consistent with the numerical simulations. 展开更多
关键词 logistic growth model first-order-like phase transition re-entrance-like phase transition colored noise
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Research on the Best Routing Algorithm of Terminal Distribution Based on the Random Factor of Road Hustling Degree 被引量:1
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作者 陈子侠 《Journal of Shanghai Jiaotong university(Science)》 EI 2007年第3期416-420,426,共6页
Dijkstra algorithm is a basic algorithm to analyze the vehicle routing problem (VRP) in the terminal distribution of logistics center. According to the actual client demands of service speed and quality, the conceptio... Dijkstra algorithm is a basic algorithm to analyze the vehicle routing problem (VRP) in the terminal distribution of logistics center. According to the actual client demands of service speed and quality, the conceptions of economical distance of delivery and the best routing algorithm were given on the base of the Dijkstra algorithm with consideration of a coefficient of the road hustle degree. Economical distance of delivery is the shortest physical distance between two customers. It is the value of goods delivery in shortest distance when concerning factors such as the road length, the hustle degree, the driveway quantity, and the type of the road. The improved algorithm is being used in the development and application of a distribution path information system in the terminal distribution of logistics center. The simulation and practical case prove that the algorithm is effective and reasonable. 展开更多
关键词 logistics and distribution system best routing algorithm road hustling degree geography informationsystem (GIS)
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Current status of medical support in military operations other than war in domestic and overseas 被引量:3
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作者 Huang Jian Wang Yungui +2 位作者 Cheng Xiaobin Zhou Lin Wu Ziwei 《Journal of Medical Colleges of PLA(China)》 CAS 2012年第6期343-350,共8页
Objective: To investigate the current status of medical support in military operations other than war (MOOTW) in domestic and overseas. Methods: This paper mainly adopts the descriptive, comparative and induction rese... Objective: To investigate the current status of medical support in military operations other than war (MOOTW) in domestic and overseas. Methods: This paper mainly adopts the descriptive, comparative and induction research methods. The current status of medical support in MOOTW in China, America, Russia, Israel, Canada, had been studied through some official papers, and series of professional books by analysis the precise date in various kinds of emergency event. Results: The contrast shows that there is still a quite huge development in medical support in MOOTW, no matter in China, or in other countries. Conclusion: In order to strengthen the forces, besides building professional rescue teams, it is necessary to take a regular revise of plans, according to missions` needs. 展开更多
关键词 Medical support Military operations other than war PLANS
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Total ischemic time and outcomes for patients with ST-elevation myocardial infarction: does time of admission make a difference? 被引量:2
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作者 Jun-Xian SONG Li ZHU +3 位作者 Chong-You LEE Hui REN Cheng-Fu CAO Hong CHEN 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2016年第8期658-664,共7页
Objective To investigate whether admission time was associated with the delay of reperfusion therapy and in-hospital death in patients with ST-elevation myocardial infarction (STEMI). Methods All patients with STEMI... Objective To investigate whether admission time was associated with the delay of reperfusion therapy and in-hospital death in patients with ST-elevation myocardial infarction (STEMI). Methods All patients with STEMI who were admitted to the emergency depart- ment and underwent primary percutaneous coronary intervention at Peking University People's Hospital between April 2012 and March 2015 were included. We examined differences in clinical characteristics, total ischemic time, and in-hospital death between patients admitted during off-hours and those admitted during regular hours. Multivariate logistic regression was used to estimate the relationship between off-hours admission and clinical outcome. Results The sample comprised 184 and 105 patients with STEMI admitted to hospital during off-hours and regular hours, respectively. Total ischemic and onset-to-door times were significantly shorter in patients admitted during off-hours than among those admitted during regular hours (all P 〈 0.05). Door-to-balloon (DTB) time, the rate of DTB time 〈 90 min, and in-hospital death were comparable between groups. Multivariate logistic regression showed that age and creatinine level, but not off-hours admission, were associated independently with increased in-hospital death. Conclusions Off-hours admission did not result in delayed reperfusion therapy or increased in-hospital mortality in patients with STEMI. Further efforts should focus on identifying pivotal factors associated with the pre-hospital and in-hospital delay of reperfusion therapy, and implementing quality improvement initiatives for reperfusion programs. 展开更多
关键词 In-hospital death Myocardial Infarction Off-hours admission Percutaneous coronary intervention Total ischemic time
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书法教学札记(一)
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作者 赵培峰 《书法赏评》 2022年第5期18-20,共3页
今观一学生临摹《勤礼碑》,指出其问题:要想学好《勤礼碑》,首先要了解颜真卿的生涯。在此基础上,了解其所在时代的社会背景。其次,要掌握颜真卿的笔法,笔法是基础,也是核心。笔法要正确,当然,还要看是写小字《勤礼碑》还是大字《勤礼... 今观一学生临摹《勤礼碑》,指出其问题:要想学好《勤礼碑》,首先要了解颜真卿的生涯。在此基础上,了解其所在时代的社会背景。其次,要掌握颜真卿的笔法,笔法是基础,也是核心。笔法要正确,当然,还要看是写小字《勤礼碑》还是大字《勤礼碑》。 展开更多
关键词 颜真卿 临摹 笔法 教学札记 书法 《勤礼碑》
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Two-Phase Algorithm for Multi-warehouse and Multi-task Based Logistics Delivery
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作者 张俊伟 马范援 《Journal of Shanghai Jiaotong university(Science)》 EI 2005年第1期40-43,共4页
To a scaled logistic company, assigning is an important part of logistic, and further development will make the optimized assigning of multi-warehouse and multi-task possible. This paper provided a two-phase multi-war... To a scaled logistic company, assigning is an important part of logistic, and further development will make the optimized assigning of multi-warehouse and multi-task possible. This paper provided a two-phase multi-warehouse and multi-task based algorithm which has two phases. In the first phase, it combines sweep algorithm, saving algorithm and virtual task point to present a method. And in the second phase it provides an algorithm for the arrangement of goods loading which is based on the constraints of time-window and attributes of goods and vehicle. It uses the computing results of the first phase to form more detailed delivery scheme based on the constraints of time-window and attributes of vehicle and goods. 展开更多
关键词 logistics delivery time-window multi-warehouse and multi-task
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A singular spectrum analysis on Holocene climatic oscillation from lake sedimentary record in Minqin Basin, China
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作者 靳立亚 陈发虎 +1 位作者 丁小俊 朱艳 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2007年第2期149-156,共8页
The total organic carbon (TOC) content series from the lake sediment of Minqin Basin (100°57′–104°57′E, 37°48′–39°17′N) in northwestern China, which has a 10 000-year-long paleo-climatic prox... The total organic carbon (TOC) content series from the lake sediment of Minqin Basin (100°57′–104°57′E, 37°48′–39°17′N) in northwestern China, which has a 10 000-year-long paleo-climatic proxy record, was used to analyze the Holocene climate changes in the local region. The proxy record was established in the Sanjiaocheng (SJC), Triangle Town in Chinese, Section (103°20′25″E, 39°00′38″N), which is located at the northwestern boundary of the present Asian summer monsoon in China, and is sensitive to global environmental and climate changes. Applying singular spectrum analysis (SSA) to the TOC series, principal climatic oscillations and periodical changes were studied. The results reveal 3 major patterns of climate change regulated by reconstructed components (RCs). The first pattern is natural long-term trend of climatic change in the local area (Minqin Basin), indicating a relatively wetter stage in early Holocene (starting at 9.5 kaBP), and a relatively dryer stage with a strong lake desiccation and a declined vegetation cover in mid-Holocene (during 7–6 kaBP). From 4.0 kaBP to the present, there has been a gradually decreasing trend in the third reconstructed component (RC3) showing that the local climate changed again into a dryer stage. The second pattern shows millennial-centennial scale oscillations containing cycles of 1 600 and 800 years that have been present throughout almost the entire Holocene period of the last 10 000 years. The third pattern is a millennial-centennial scale variation with a relatively smaller amplitude and unclear cycles showing a nonlinear interaction within the earth’s climate systems. 展开更多
关键词 Quaternary Holocene lake sediment climatic change oscillation analysis singular spectrum analysis proxy record
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Logistic Regression for Evolving Data Streams Classification
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作者 尹志武 黄上腾 薛贵荣 《Journal of Shanghai Jiaotong university(Science)》 EI 2007年第2期197-203,共7页
Logistic regression is a fast classifier and can achieve higher accuracy on small training data.Moreover,it can work on both discrete and continuous attributes with nonlinear patterns.Based on these properties of logi... Logistic regression is a fast classifier and can achieve higher accuracy on small training data.Moreover,it can work on both discrete and continuous attributes with nonlinear patterns.Based on these properties of logistic regression,this paper proposed an algorithm,called evolutionary logistical regression classifier(ELRClass),to solve the classification of evolving data streams.This algorithm applies logistic regression repeatedly to a sliding window of samples in order to update the existing classifier,to keep this classifier if its performance is deteriorated by the reason of bursting noise,or to construct a new classifier if a major concept drift is detected.The intensive experimental results demonstrate the effectiveness of this algorithm. 展开更多
关键词 CLASSIFICATION logistic regression data stream mining
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