摘要:20世纪科学技术的发展给人类带来高度物质文明的同时。也给人类自身的生存和发展带来巨大的威胁.人类社会与自然和谐发展具有至关重要的意义,可持续发展已成为人类共同发晨的理念.作者从牢记国家的战略需求。将我国的生态学发晨与国家目标紧密结合;重视国际生态学发晨前沿和热点问题,紧密结合中国国情,做出创造性贡献;努力做好生态学的普及工作几个方面讨论了我国生态学在本世纪初期的发展问题.关键词:生态学;发展;目标;建议%The development of sciences and technology during the 20thcentury has brought both material civilization to human beings and great threats to the existence and development of human beings themselves. The harmonious develop ment of human society and nature is of vital significance and the sustainable development has become a common rational idea of people. In the essay the writer has discussed the ecological development in China at the beginning of this century from the following aspects: keeping in mind the needs of national strategy and closely combining our ecological develop ment with national target; taking full account of the advances and heated points of ecological development all over the world and making creative contributions in close accordance with the conditions in China; trying hard to do well the popularization work of ecology, and others.
摘要:A preliminary study on reformation of diet and dietary husbandryfor two captive giant pandas (one adult male and one 5.5 year-old female) has been done at Zoological Society of San Diego during September 1996 to August 1997, which is based on a twelve-year long-term project of cooperative reproduction research for the giant panda with China. The panda pairs are fed with an extruded biscuit-shaped diet, which contains relatively high level of protein and fiber without milk and sugar matters, instead of their native diet of steamed grain bread plus milk, sugar, eggs and so on. The dietary is browsed animals by the way of more (than two) meals but a small amount and partially distributing the food in different parts of the animal' s active area. Animals are also offered plenty of fresh bamboo daily, and water is freely available. Food consumption, body weight and fecal output of the animals are measured, and detail data on animal' s development, health, behavior and reproductive feature are collected, too. The results have showed that both animals are quickly able to adapt them to the changes of husbandry factors, such as the environmental condition, food type and feeding schedule, and the maximum adaptive period might be six months. Well evidences have proved that both giant pandas are going normal, not only on their growth, development and nutrition, but also on the health, activities and routine be havior. A good quality and quantity of semen sample (3.36 ml, 90 % of motility, SOP = 3) was collected from the male. Defecation of mucous stool of animals are greatly reduced in the interval, quantity and abdominal uncomfortment. Daily activities under feeding the biscuit increased double times more than it did before.%对膨化饼干饲料饲喂大熊猫进行了研究,对日粮组合及饲喂方法作了重大改革.结果表明:使动物提高了日活动量,降低了排粘液次数及数量近一半,动物生长发育、营养状况、行为学及繁殖学各方面明显优于实验前。对提高动物健康与繁殖素质具有良好作用.结果还表明动物对陌生环境和饲养因素的改变具有较强的适应能力,最长适应期为6个月,青年比老年个体适应性强.保持大熊猫的食竹特性十分重要
摘要:论述了对电磁感应现象本质的认识及其深化,探讨了准确全面地表述电磁感应定律的数学表达式.%The thesis discusses the understanding and deepening of theessence of the electromagnetism induction phenomenon. It also probes into the mathematical expression of electromagnetism induction law precisely and comprehensively.
摘要:The information society has new and high demand for computerbasic education in normal school. According to the needs of training personnel competence, we have studied strengthening student's competence and ability in computer basic education in normal schools, and practiced it. We have not only got some achievment in promoting student to improve his knowledge,ability and competence,but also raised our teaching level and education quality.%信息化社会对师范院校计算机基础教育提出了更新、更高的要求.从人才素质培养的需要。我们开展了师范院校计算机基础教育中加强学生素质和能力培养的探索与实践.并在促进学生知识、能力、素质的综合提高、德智体美等全面发展,提高教学水平和教育质量等方面取得了一定成效.
摘要:We conduct a report on the fish in the upper reaches of theMinjiang River in terms of their fauna, ecotypes, resource groups and the composition of the catch during April and May in 1997, thus providing a valuable reference for fish classification, geography, fish management department as well as local leaders at all levels.%报道了岷江上游的鱼类区系。生态类型,资源类型和1997年4~5月的渔获物组成
摘要:This paper reports the study on aluminum sulfate [Al2(SO4)3·18H2O] used in the esterfication of carboxylate and isoamylic alcohol. The condition is synthesis of isoamyl butyrate catalyzed with aluminum sulfate. Eleven kinds of isoamyl carboylate were prepared. The result of study indicates that the catalytic activities is good%报道了以硫酸铝为催化剂。催化合成羧酸异戊酯.探讨了正丁酸异戊酯的合成条件以及硫酸铝催化其他羧酸异戊酯的适应性。结果表示硫酸铝的催化性能良好
摘要:In this paper, comparing with routine cultivatedspecies-K0014(CK),the authors have recorded the major biological characters and analyzed the yield of the four improved varieties of P. tetragonolobus (L.) D. C which were se lected. The result shows that:the four improved varieties are all fit for growing under the climatic condition in the Nan chong area; the K009 and K0010 have high production and antiviral characters; the 96-13 has prematurity、high procduction and antiviral characters; the 96-14-1 has low-growing、 erection and antiviral characters.%以常规栽培种K0014为对照,对选出的4个四棱豆良种进行了主要生物学特性记载和产量分析.结果表明:该4个良种均适合南充地区栽培。其中K009和K0010具高产。抗病特性;96-13具早熟。高产,抗病特性;96-14
摘要:Five strains were selected from sludge of bean curd factory. Theywere determinated fringely RP. Palustris、Rp. acidophila、Rp.sphaeroides. The sewage of slaughterhouse and breeding turtle in glasshouse was applied to culture mixed PSB and its content of N、BOD、COD were declined ,but transparency was increased. So,the sewage was refined distinctly.%从南充市豆制品厂污泥中,分离到五株光合细菌。经初步鉴定分别为沼泽红假单胞菌、球形红假单胞菌、嗜酸红假单胞菌;将其混合培养处理屠宰场污水和温室养鳖场污水,其氨氮量。BOD,COD均下降,而透明度增加。水质得到明显净化。
摘要:研究了三维准稳态荷电黑洞的热辐射,其结果可回到稳态情况%The thermal radiation of the quasi-stationary charged black holein three-dimensional space-time is studied. The results can be reduced to those of the stationary charged black hole.
摘要:In this paper the writers have studied the faunal composition,the dominant and common species of birds re produced with different vertical zones in the Muli and the resources types of birds.%报道了木里县鸟类的区系组成、特点以及优势种、常见种和资源鸟类的类型.木里县现有鸟类230种.繁殖鸟类200种,其中古北界种类有78种,东洋界种类有100种,我国特产鸟类有21种。属国家Ⅰ级保护鸟类4种。Ⅱ级25种.
摘要:采用正则量子化及WKB近似方法,讨论了在宇宙的极早期,一个封闭的FRW宇宙通过量子隧道效应过程如何从无产生。并且计算出了这种量子创生的几率%The canonical quantiztion and WKB approximation is used to studythe quantum tunneling origin of a closed FRW universe from nothing at very early times and the probability for such a quantum cosmogenesis is culculated.
摘要:根据21世纪生命科学的发展与社会需求。论述了新世纪生命科学全面发展的人才观;树立人才资源是第一资源的人才观;创新人才观;重视奇才与偏才的培养;高标准的素质教育观.对人才现状与需求作了分析,提出了生命科学发晨中应该注意的一些问题.%According to Life science's development and social needs in the21st century,this paper disscusses the viewpoints of development in an all-round way and competence education of talented persons which Life Science needs in the New Century. It analyses the present state, causes and social needs of talented person