摘要:杂多酸/TiO2复合材料在光吸收、光催化和酸催化等方面有着十分广阔的应用。本文针对近几年有关杂多酸/TiO2复合材料的制备方法及优缺点进行了综述,并对其应用进行了介绍。%As a kind of composite materials, Polyoxometalates/TiO2 have very extensive applications in light absorp-tion, photochemical catalysis, acid catalysis and so on. In this paper, the preparation methods and relative merits of Polyoxometalates/TiO2 have been reviewed, and the application of Polyoxometalates/TiO2 has been introduced for these years.
摘要:Three new routes for the synthesis of 1,3-dithiole-4,5-dicarboxyl-benzylthio-2-thione from(NBu4)2[Zn (dmit)2] were reported. This paper compared method and conditions in three routes,found the best route is the reaction of Organic Halides and Zinc Complex. The method had simple operations ,nice crystal formation and high productivity , which was the preferred way to synthesis the target products.% 介绍了由(NBu4)2[Zn(dmit)2]合成1,3-二硫杂环戊烯-4,5-二(对羧基)硫苄基-2-硫酮的三种方法,讨论了实验条件和实验方法,并将三种方法进行了比较,指出了最佳方法是由dmit的锌配合物直接与有机卤化物反应,该种方法具有操作简便、晶型好和产率较高的优点,是目前合成目标产物的首选方法。
摘要:采用通辽地区沙地水稻生产上常用的品种为试验材料,对其产量与主要农艺性状进行了相关及多元回归分析,结果表明:水稻单穴产量与结实率和千粒重呈显著正相关,与空粒数呈显著负相关,与其它性状呈不显著负相关;通过逐步回归分析建立了数学模型,通径分析结果表明,穗长、实粒数、千粒重对产量具有正向效应,而生育期、株高、分蘖数却对水稻的单穴产量具有负向效应。在沙地衬膜条件下,应选择穗长、生育期适中、千粒重大、分蘖数较少、实粒数多、株高适中的品种易获得高产。%Using the common varieties in Tongliao sand rice production, the yield and the main agronomic characters are disposed by correlation analysis and multiple regression analysis. The results show that is significant positive corre-lation between single cavity production of rice and setting percentage,thousand-grain weight, is significant negative correlation with empty grain number, is not significant negative correlation with other characters. Through the stepwise to establish the mathematical model, path analysis results show that ear length, grain number and thousand-grain weight have positive effect on the production, but growth period, plant height and tiller number have negative effect on the single cavity production of rice. In the sand lining membrane conditions, choosing variety of moderate ear length and growth period, high thousand-grain weight, less tiller number, many grain numbers, moderate plant height, to ac-quire high yield.
摘要:Objective: To explore the pharmacological and clinical application status of Mongolian patent medicine Wuliji-18 pills, and to provide the theoretical basis for its accurately clinical application and further research. Meth-ods:Through consulting a large number of related literature, the composition, pharmacology, clinical application and laborary research progress of Wuliji-18 pills are reviewed. Results:Through the consecutive research and exploration of Mongolian medicine, it has created an unique prescription of balancing Yin and Yang, regulating chills and fever, considerting asthenia and sthenia and bidirectional regulation, the prescription has complementary and regulable func-tion. Conclusion:Wuliji-18 pills has a significant efficacy in the treatment of all kinds of gynaecology diseases caused by endocrine dyscrasia, just lack of reliable experimental data, so it has significance to adopt scientific methods to deep research and unearth its scientific connotation, and let its advantages and characteristics play a bigger role in medical prevention and health care undertakings.% 目的:探讨蒙成药乌力吉-18丸的药理作用及临床应用状况,为乌力吉-18丸在临床上更加精确地应用和进一步深入研究提供理论依据。方法:查阅大量蒙医药学相关学术文献,对乌力吉-18丸的成分、药理学、临床应用、实验室研究进展等进行文献综述。结果:蒙医学认为乌力吉-18丸是治疗内分泌失调引起的各种妇科病的经典方药。历代蒙医学对该方不断进行研究、探索、创造了平衡阴阳、调理寒热、虚实兼顾、双向调节功能的独特方药,起到可补可调的作用。结论:乌力吉-18丸对治疗内分泌失调引起的各种妇科病疗效显著,只是缺乏可靠的实验数据研究,采取科学方法对其进行深入研究,挖掘其科学内涵,使其优势和特色在医疗预防保健事业中发挥更大作用。
摘要:目的:通过对外周血中B型脑钠肽的浓度水平来评定急性冠脉综合征患者的血管病变程度。方法:选择2010年12月~2013年1月在内蒙古民族大学附属医院住院的资料完整的中老年冠心病患者90例,年龄均大于56岁,平均年龄大约在(56±6)岁,其中正常对照组30例,不稳定心绞痛(UA)30例,心肌梗死(AMI)30例,所有患者均行冠状动脉造影术或256排螺旋CT确诊。结果:90例老年冠心病患者中,急性心肌梗死组的因子浓度水平明显高于不稳定心绞痛组,而不稳定心绞痛组明显高于正常组。结论:说明因子浓度越高,冠状动脉血管病变越严重。%Objective:To evaluate the vascular lesion degree of patients with acute coronary syndrome through detect-ing the B-type brain natriuretic peptide levels in peripheral blood. Methods:The intact data of 90 middle and elderly aged patients with coronary heart disease who hospitalized in the Affiliated Hospital of Inner Mongolia University for Nationalities from December 2010 to April 2013 were selected, their age were all more than 56 years and the average was about 56 ± 6. The normal control group, the unstable angina(UA)group and the acute myocardial infarction (AMI)group each had 30 patients, all the patients were diagnosed by coronary angiographyor or 256-slice spiral CT. Results:In 90 elderly patients with coronary artery disease, the brain natriuretic peptide levels in AMI group was sig-nificantly higher than that of UA group, and the levels in UA group was significantly higher than that of normal group. Conclusion:The level of brain natriuretic peptide can reflect the degree of vascular lesion, and the higher concentra-tion of the factor, the more serious of coronary artery disease.
摘要:The theory of achievement goal orientation is used in generally selected course of volleyball.By the way of document, expert's interview, questionnaire, teaching experiment, The result of the experiment shows that the using of this theory to attains a designated standard the result to have certain enhancement, but the influence function is not obvious;But has the significance to the technical examination and critique and the theory result influence.% 运用文献法、专家访谈法、实验法将成就目标定向理论应用到高校排球普修课的教学。实验表明:成就目标定向在排球普修课教学过程中的应用,对达标成绩有一定的提高,但影响作用不明显;而对技术考评和理论成绩影响则具有显著性的意义。
摘要:Through the relevant literatures were analyzed and summarized, and the long jumpers in the presence of var-ious influence factors of long jump results were compared, the techniques in long jump run-up speed, in the run-up rhythm, factors such as the relevant analysis, to explore the influence of each part in the long jump.% 通过有关大量文献资料进行了分析、归纳和总结,并通过该跳远运动员助跑中所存在的各种影响跳远成绩的因素进行了对比研究,对跳远技术中的助跑速度、助跑距离、助跑节奏等因素进行了有关分析,探索出各环节对跳远成绩的影响。
摘要:临床实习是学生接受教育的重要阶段,是学生整个学习过程中的最后环节,也是向社会过渡的重要转折点。近年来,护理本科生的出现,给儿科护理临床教学带来了新的挑战。如何提高儿科护理临床教学质量,培养适应社会的、新型的、合格的、高级护理人才,是护理教学中急需探讨研究的课题。%The clinical internship is not only an important stage for nursing students to receive education and the last part of whole learning process, but also an important turning point in the transition from the college to the community. In recent years, the emergence of nursing undergraduate has brought a new challenge for the clinical teaching of pediat-ric nursing. How to improve the clinical teaching quality of pediatric nursing, to train new, qualified, high-level and adapting to the society nursing talents is urgently the needed research tasks in nursing education.
摘要:Under solvothermal synthesis condition, the hexagonal cadmium sulphide nanomaterial was obtained by heating at 120oC for 12h, using ethylenediamine and water as mixed solvent. The sample was charaeterized by XRD and TEM technologies. The photocatalytic property of CdS nanocrystal was studied by adoptting the degradation of rho-damine B as the model reaction, and the factors influencing degradation efficiency of rhodamine B were discussed in-cluding the dosage of CdS sample, acidity of the degradation system and the type of light source. The degradation effect of CdS samples increased with the acidity decreased, and the degradation effect was better when rhodamine B solution was irradiated under sunlight than under 250 W mercury lamp.% 以氯化镉和硫脲为原料,以乙二胺和水为混合溶剂,采用溶剂热合成方法,在120oC和12h条件下,制得了六方相硫化镉样品,对其进行了XRD和TEM表征。以罗丹明B的降解为模型反应,对硫化镉纳米材料的光催化性能进行了研究,讨论了硫化镉的用量、降解体系的酸度及光源类型等因素对降解效果的影响。随着降解体系酸度的增加,硫化镉对罗丹明B溶液的光催化降解效果呈增大的趋势;太阳光照射下,罗丹明B溶液的降解效果好于250 W汞灯照射时的降解效果。
摘要:通过对通蓖7号、通蓖9号两品种进行了5个种植密度的二因素随机区组试验设计,研究了种植密度对两品种667m2产量及全株籽粒含油量的影响。结果表明:两品种667m2产量随种植密度的加大先增加后减小,且呈抛物线变化;通过各自的回归方程得出通蓖7号、通蓖9号667m2最高产量时的密度分别为1594、1588株/667m2;在一定种植密度范围内,两品种籽粒含油量随种植密度的增加而升高。%According to the 5 levels planting density experiment of TongBi 7 and TongBi 9,studing the effect of planting density on yield per 667m2 and whole plant seeds oil content of the 2 varieties. The results show that:2 varieties yield per 667m2 increas first and then decreases with the increases of planting density, as parabola;through the regression equation obtain that the maximum yield of TongBi 7 and TongBi 9 while the respective density is 1594, 1588 plants per 667m2;in a certain density range, seed oil content of the 2 varieties increase with increase of planting density.
摘要:科尔沁牛公犊早期补饲高档精料60天断奶及阶段育肥技术研究结果表明:犊牛5日龄开始补饲高档精饲料、7日龄开始补饲优质干草,丰富了犊牛获取的营养种类,充分满足各种营养需要,早期补饲刺激瘤胃,促使整个消化系统的发育,增强消化吸收能力,从而加快犊牛生长发育速度,日增重可达0.774Kg,60日龄断奶体重可达79.29Kg,公犊进行61~120日龄和121~360日龄阶段育肥(12月龄)体重达513.18Kg,屠宰率达52.43%,育肥牛饲养期缩短6~12个月,有显著的经济效益.%The Research results of early supplementary feeding High-grade concentrated feed on Horqin male calf , weaning in 60 days and the weight gain after periodical fattening shows that:It riched the species of nutrition obtained and adequately satisfy the need of nutrition to start to feed High-grade feed on 5 days aged calf and to feed high quality hay on 7 days aged calf.The supplementary feeding can stimulate rumen and promote the development of digestive sys-tem,enhance the digestive and absorptive capacity and thus increase the growth speed of calves. Therefore the daily gain can be reached 0.774Kg and the weaning weight of 60 days aged calf can be reached 79.29Kg.Periodically fatten the 61-120 days aged male calves and 121-360 days aged calves ,The weight of them can be reached 513.18Kg and the dressing percentage can be reached 52.43%.The feeding period will be reduced 6-12 months and the economic benefits are remarkable.
摘要:Research advance in a summary of the classification of enterococcus from animal source,biological charac-teristic,pathogenicity,epidemiology,laboratory diagnosis and drug resistance.% 综述了动物源性肠球菌的生物学特性,致病性,流行病学,实验室诊断和耐药性的研究进展。
摘要:Objective:To observe the clinical effect of ulcer powder for external use on nabothian cyst. Methods:140 cases of nabothian cyst patients were selected and randomly divided into two groups. The treatment group(70 cases) was treated with syringe needle combined with Mongolian Medicine external ulcer powder for 1~3 course, the control group(70 cases)was treated with syringe needle combined with Xiuzhengxiaomishuan for 1~3 courses, the effects of the two groups were observed. Results:In the treatment group, 54 cases were healed, 11 cases were improved, 5 cases were invalid, the effective rate was 92.86%;In the control group, 59 cases were healed, 8 cases were improved, 13 cas-es were invalid, the effective rate was 81.43%. Conclusion:Using syringe needle combined with Mongolian medicine ulcer powder for external use has significant efficacy to treat nabothian cyst without side effect, so it is a new and effec-tive treatment method for nabothian cyst.% 目的:观察外用溃疡散治疗宫颈纳氏囊肿的临床效果.方法:选择宫颈纳氏囊肿患者140例,随机分治疗组70例,采用应用注射器针头配合蒙药外用溃疡散治疗1~3个疗程,对照组70例采用应用注射器针头配合修正消糜栓治疗1~3个疗程,观察其疗效.结果:治疗组70例,治愈54例,好转11例,无效5例,有效率92.86%;对照组70例,治愈49例,好转8例,无效13例,有效率81.43%.结论:注射器针头配合蒙药外用溃疡散治疗宫颈纳氏囊肿疗效显著,无明显的不良反应,是目前治疗宫颈纳氏囊肿的一个新的有效的治疗方法.
摘要:Objective:Through nursing instruction of the foot of diabetics to heighten the patients’recognition degree of diabetic foot, control blood glucose at a good level, and enhance the confidence to overcome the diabetic foot. Meth-ods:30 patients have been diagnosed of diabetes underwent person-to-person foot health education and nursing in-struction, the treatment and care effects were observed and evaluated. Results:The diabetic foot patients who received careful nursing instruction significantly improved the mastery of the relevant knowledge, controled the disease continu-ous deterioration, and several patients were improved and discharged. Conclusion:Nurses’health education and nurs-ing instruction can heighten the diabetic foot patients’recognition degree of relevant knowledge, enhance patients’ coping ability, better protect the feet, improve life quality and reduce the risk of severe and amputation.% 目的:通过对糖尿病患者足部的护理指导,使患者对糖尿病足知识的认识程度有所提高,将血糖控制在良好水平,增强患者战胜糖尿病足的信心。方法:对已确诊的30例糖尿病患者一对一的足部健康教育及护理指导,观察其治疗护理效果评价。结果:细心指导过糖尿病足患者明显提高对相关知识的掌握,控制病情继续发展,个别患者好转出院。结论:护士的健康教育与护理指导能够提高糖尿病足患者对相关知识的认识程度,提高患者的应对能力,更好地保护双足,提高生活质量,减少重症及截肢的风险。
摘要:The university P.E. courses are always mainly about the physical and practical exercises and based on the target of the students’physical quality and the interests. But as it shows that the P.E. English elective course is the combination of both the theory and the practice. So it can take the fancy of the students’study. By exercising their physical quality and the improving the P.E. English level, the students can develop their ability of creation ,practice, teaching and social adjustment.% 高校开设体育选项课时多以体育术科项目为主,多注重身体素质和学生的兴趣爱好。而体育英语选项课是理论与实践相结合,更能迎合学生的学习兴趣。既可以锻炼身体又可以提高体育英语水平,还可以培养学生的创新能力、实践能力、教学能力和社会适应能力。
摘要:In this paper, a kind of local doubly diagonally dominant matrices is introduced, and some new criteria for nonsingular H-matrices are obtained according to the kind of local doubly diagonally dominant matrices.A numerical example is also given to illustrate the effectiveness of the proposed results in the end.% 提出了一类局部双对角占优矩阵,并据此给出了其为非奇异H-矩阵的新判据,最后通过数值实例说明了所得结果的有效性。
摘要:Some effective teaching methods are concluded in practice to enhance the experimental skills of college students. These methods improved the students' abilities to manipulate, to create, to analyze and solve problems and the ability to integrate theory with practice, laid a good foundation for developing students' into high-quality talented persons with modern science and culture.% 在实践教学中总结出一些提高大学生实验技能的有效方法,通过这些方法可以提高学生的动手能力、创新意识、分析问题和解决问题的能力、理论与实践相结合的能力,培养学生成为具有现代科学文化知识的高素质人才。
摘要:根据水稻品种穗型大小,将江苏省淮北地区近20年来选育的主要水稻品种分成两类,一类为偏大穗型品种,另一类为穗数型品种.本研究旨在探讨淮北地区偏大穗型水稻品种群体特征及生长发育特性.结果表明,与穗数型水稻品种相比,偏大穗型水稻品种每穗颖花数多,结实率稍低,千粒重相当;偏大穗型品种全生育期茎蘖数均少于穗数型品种,但分蘖成穗率高于穗数型品种;偏大穗型品种叶面积指数、光合势和干物质积累,生育前期与穗数型水稻品种没有明显差异,抽穗后则显著高于穗数型品种;偏大穗型品种各生育时期的根冠比、茎鞘物质运转率和收获指数与穗数型品种无明显差异,但抽穗后根系伤流量显著高于穗数型品种.提出了淮北地区偏大穗型水稻品种群体指标体系:总颖花量>5.0×104万m-2,结实率>85%,千粒重>26 g;茎蘖成穗率>80%,抽穗期叶面积指数7.5-8.0,全生育期光合势>5×106 m2·d·hm-2,成熟期总干重>22 t·hm-2,收获指数>0.50;抽穗期粒叶比〔颖花/叶(cm2)〕>0.58,根冠比>0.22,根系伤流量>5 g·m-2·h-1.%s: This study aimed to understand population characteristics of partial-large-panicle mid-season Japonica rice cultivars in North Huai River Areas. According to the differences in panicle types, more than 20 mid-season ja-ponica rice cultivars bred in recent 20 years could be classified into two groups, i.e., panicle-number cultivars and partial-large-panicle cultivars. Compared with the panicle-number cultivars, the partial-large-panicle cultivars had lower filled-grain percentage and tillers, while the partial-large-panicle rice had more spikelets per panicle and higher ratio of productive tillers than that of panicle-number cultivars. The leaf area index, photosynthetic potential and dry matter accumulation were at the same level for the two rice groups before heading stages and there were no significant differences in grain-leaf ratio, 1000-grain weight, harvest index and translocation percentage of the matter from stems for the two rice groups. The leaf area index, photosynthetic potential, root bleedings, and dry matter accumulation of partial-large-panicle rice cultivars after the heading stages were greater than those of panicle-number rice cultivars. The indexes for the population characteristics of partial-large-panicle rice were suggested, i.e., total spikelets>5.0 × 104 m-2, filled-grain percentage>85%, 1000-grain weight>26 g;ratio of productive tillers>80%, leaf area index at heading 7.5-8.0, photosynthetic potential during the whole growth period>5×106 m2·d·hm-2, total dry matter weight at maturity>22 t·hm-2, harvest index>0.50;grain-leaf ratio(No. of spikelets per cm2 leaf area)>0.58;root-shoot ra-tio at heading>0.22 and amount of root exudates>5 g·m-2·h-1.
摘要:农产品生产与加工过程中有害物质残留与污染直接影响到食品安全。本文在综述农产品生产与加工过程中有害物质残留与污染的途径的基础上,分析了产生这些问题的主要原因,并提出了解决问题的对策,以期为食品安全生产提供理论参考。%Food security is directly affected by residues of harmful substances and pollution in the process of the ag-ricultural production and processing. This paper reviews agricultural products in the production process on the basis of harmful residues and pollution pathways, analysis of the main reason for these problems, and proposed solutions to these problems, and to provide a theoretical reference for the production of food safety.
摘要:The liquid feed is a new feed, unlike other types of processing feed,not only the wide variety of sources, and a wide range of usage and dosage vary in different animal feed, and its unique features in animal production occupies a position of increasingly important. It canimprove the production performance of animals, feed digestion and characteris-tics to be improved to reduce environmental pollution and other aspects of the advantages. The characteristics, type, preparation and the applications on the animal production of liquid feed will be reviewed in this article.% 液态饲料是一种新型饲料,与其它种类的加工饲料不同,不仅来源广泛,而且种类繁多,用法和用量在不同动物饲料中各不相同,并以其独有的特性在动物生产中占有的地位越来越重要。可提高动物的生产性能,使饲料的消化特性得到改善,减少环境污染。本文主要针对液态饲料的特性、种类、制备方法及其在动物生产上的应用做一综述。
摘要:缺血性脑卒中是最常见的脑血管病,严重威胁着人类健康。不同的医学体系对其治疗亦不同,现就蒙医与西医对缺血性脑卒中治疗的现状作一综述。%Cerebral ischemic stroke is the most common cerebrovascular disease and seriously threatens human’ health. Different medical systems for its treatment are also different, this paper reviews the status of traditional Mongo-lian medicine and Western medicine in the treatment of cerebral ischemic stroke.
摘要:Angeliq is currently one of the most effective hormone replacement drugs in the treatment of women meno-pausal syndrome. It composes of 1mg estradiol and 2mg drospirenone. A number of clinical studies show Angeliq can effectively relieve patients’vasomotor symptoms and urogenital atrophy. At the same time, it also has the function of lowering blood pressure and blood lipids. Its unique anti-mineralocorticoid action can alleviate the symptoms of water and sodium retention. Angeliq has become the preferred drug in hormone replacement therapy because of the character-istics of good curative effect and small adverse reaction.% 安今益是目前用以治疗绝经期综合征妇女最有效的激素替代治疗药物之一,由剂量1mg雌二醇和2mg屈螺酮组成。多项临床研究显示安今益能有效缓解患者的血管收缩症状及泌尿生殖道萎缩,同时还具有降血压、血脂的作用。其独特的抗盐皮质激素作用可减轻患者水钠滞留的症状。安今益因其疗效好,不良反应小的特点,已成为激素替代治疗的首选药物。
摘要:在我国,教育改革的发展的趋势是素质教育,高校的教育者正在密切的关注和研究,在提高学生身体素质方面和培养集体合作等方面起到了重要作用,正在受到体育工作者的重视。通过研究三段式的教学模式在教学中表现出了一定的优势,在体育教学中把学习的自主的权力交给同学,他们可以自由选择内容进行学习和自主的选择练伙伴,练习时间由自己支配,练习形式由自己选择,教学目标是按的学习程度的不同选择的教学方式。在各自的小组内来共同完成的学习内容,三段式教学模式对学生心理成长特别注重,为学生的身体和心理协调的发展创造良好的条件。%In our country, the tendency of education reform and development is quality education, and the educators in the high schools are paying close attention to it and conducting researches. It has an outstanding effect on improving students' physical qualities and cultivating team cooperation ability, and attracts the attention of physical educators. Through studying the advantage of the teaching method of three sections in teaching, the students can be given learning autonomy in physical teaching. They can choose content to learn and partners according to their qualifications. They can control practice time and choose teaching methods by themselves. The teaching aim is to choose teaching methods according to degree of learning. They can finish the learning content together in their own groups. The teaching method of three sections will focus on the development of mental health for the students, and create good conditions for the de-velopment of students' physical and mental coordination.
摘要:提出新的预条件AOR迭代法,并证明了收敛性,说明新的预条件AOR迭代法的收敛速度要优于经典AOR迭代法的收敛速度。给出数值例子验证了算法的有效性。%In this paper ,we present a new preconditioned AOR iterative method and prove it is converge.It shows that the rate of the preconditioned AOR iterative method is faster than that of the basic AOR iterative method. Numerical ex-ample verifies validity.
摘要:在分析不等式中,凸函数的Hermite-Hadamard型积分不等式占有十分重要的地位。目前,凸函数理论中的一个热门研究课题为对经典凸函数概念进行推广,并研究其各类Hermite-Hadamard型积分不等式及其应用问题。本文建立了m-算数调和凸函数的概念,利用m-算数调和凸函数的性质和Hölder积分不等式,得到了m-算数调和凸函数的几个Hermite-Hadamard型积分不等式。%In analytic inequality , the integral inequality of convex function of Hermite-Hadamard type plays an impor-tant role. At present, in the theory of convex function, the promotion of the classic concept of convex function, and re-search of integral inequality and its application problems. which is a hot research topic.The integral inequality of Her-mite-Hadamard type for m-convex have been obtained , and it has widespread application in proof of inequality . In this paper , the definition of m-Arithmetic Harmonic convex function are given , by the properties of m-Arithmetic Harmonic convex function and Hölder inequality , some integral inequality of Hermite-Hadamard type related to m-Arithmetic Harmonic convex function are obtained .
摘要:伴随矩阵与它原矩阵在具有的性质方面有很多相同之处。本文总结了伴随矩阵的一些性质,并列举了几个伴随矩阵在解决实际问题时的作用。%The properties of adjoint matrix have a lot of similarities with ones of its original matrix. In this paper,we summary some properties of adjoint matrix,and give some examples.
摘要:针对《数据库系统概论》课程理论性较强学生理解困难的缺点,采用一种全新的“任务驱动”教学方法,针对于《数据库系统概论》课程的全部内容,用完整的案例同步贯穿于整个教学活动,增强了学生的动手能力,加深了对理论内容的理解,提高了学习主动性,使学生能够独立设计一个比较完整的数据库应用系统,从几年的教学应用情况来看,取得了较好的效果。%For the shortcoming of strong theoretical and difficult to understand.Introduction to Database Systems,a new task-based teaching method is adopted in this thesis.It runs through entire teaching course with full case for all teach-ing content of Introduction to Database Systems ,enhancing the practice abilities of students,deepens understanding to theory ,increases their initiative,students can design a fairly complete Database Application System . From several years application better result has been achieved.
摘要:At present,with the rapid development of information technology,many first-year college student has been basically with the current required to master the basic knowledge in university public computer foundation,is no lon-ger a"Beginners". Therefore,colleges and universities,the original public computer course system and the tradition-al teaching mode have already can't satisfy the requirement of social development,So,for different specialties,based on the practice of strengthening college students' computer ability and better use the computer for the professional ser-vice concept,must reform the existing course system.%目前,随着信息技术的迅猛发展,许多刚入学的大学生,已经基本具备了当前高校公共计算机基础所要求掌握的基本知识,不再是“零起点”。因此,高等院校原有的公共计算机课程体系和传统的教学模式均已不能满足社会发展的要求,所以,针对不同专业,基于增强大学生计算机方面的实践能力及更好地运用计算机为本专业服务的理念,必须对现有的课程体系进行改革。
摘要:The C/C++program design is a basic course of computer specialty. The course is difficult to teach and learn, perplexes largeness teachers and students. Based on analyzing many years of teaching experience, summarizing the problems in the course of teaching, and drawing aged teachers’teaching views, the author puts forward some sugges-tions on C/C++program design teaching.%C/C++程序设计是计算机专业的一门基础课程,该课程难教、难学一直困扰着广大师生,根据多年的教学经验,总结自己在教学过程中存在的问题,听取老教师的教学观点,提出C/C++程序设计教学的几点建议。
摘要:以高粱-苏丹草杂交种种子为试验材料,通过纸间发芽法,探讨了废电池浸出液对种子发芽的影响,结果表明:废电池浸出液对高粱-苏丹草杂交种种子的发芽势、发芽率、主胚根长、芽长、发芽指数和活力指数的影响规律一致,随着废电池浸出液浓度的增大均呈下降趋势,各处理间发芽率、发芽指数和活力指数的差异都达到了极显著水平;在一定范围内,侧根数随着废电池浸出液浓度的增大有增加趋势,但在形态上表现为短缩畸形状。%To discuss effect of extract of battery on seed germination,Germination method between paper was exam-ined on hybridization of Sorghum-Sudan Grass. The result showed that waste battery had the same influence on germi-nation potential,germination rate,root elongation,coleoptile growth,germination index and vigor index. With the in-crease of batteries leaching liquid concentration ,the total developmental rules showed a downward trend. Germination rate,germination index and vigor index caused a highly significant levels. Lateral root numbers increased with the in-creasing concentration within limits,but shortened and deformed at conformation point.