洱海周边地区奶牛粪便的调查研究

本文对洱海周边地区的奶牛粪便进行了污染状况调查,并对其化学成分进行了分析,提出不经过无害化处理,奶牛粪污严重影响了其自身的可持续发展,粪污处理迫在眉睫。     

中国农村水环境污染处理技术及治理对策

随着城市化的发展和人民生活水平的提高,农村水环境污染日益严重.农村污水无害化排放成为新农村建设的要求,也是改善农村居民生活环境的需要.本文在对农村污水污染现状和特点掌握的基础上,就国内外农村污水的处理技术进行总结分析,提出了农村水环境污染治理的对策.     

关于农村生活垃圾处理与处置的研究

农村生活垃圾是农村环境污染的重要隐患之一,其具有种类多、数量大、处理难等特点.可通过分类回收、卫生填埋、高温焚烧、堆肥处理、沼气发酵等技术,实现农村生活垃圾处理的减量化、资源化、无害化.本文综述了我国农村生活垃圾处理现状、方法和存在的问题,以及新的处理技术和对未来的展望.     

浅谈高校化学实验室有毒废弃物的无害化处理

随着社会的发展,化学实验室的"三废"对环境的的污染不容忽视,对实验室的"三废"无害化处理,非常值得重视.本文对实验室"三废"分别进行研究,探讨其无害化处理方法.     

规模化猪场粪便污染及其治理对策

养猪业中如何控制和消除养猪场粪便对生态环境的污泥是当前热点问题.本文主要分析了规模化猪场粪便污染环境的成因,同时提出了防止和治理规模化猪场粪便造成环境污染的对策.     

农村改厕工作调查

目的：了解农村改厕情况，指导农村环境卫生工作。方法：对焦作市农村改厕情况进行调查，对粪便无害化处理效果进行监测。结果；焦作市农村改厕率达83.17%，粪便无害化处理效果良好。结论：加强改厕宣传、技术指导和管理欧共体,继续巩固农村改厕成果。     

襄阳农村文化产业发展制约因素及对策建议

立足襄阳农村丰富的自然资源、历史文化资源、民间文学艺术资源,发展襄阳农村文化产业具有重要意义.襄阳农村文化产业目前发展存在规模化程度低、市场化程度不高、产品品位不高等问题.发展襄阳农村文化产业需要政府扶持、农民参与、规模化经营、品牌打造.     

堆肥发酵接种剂及规模化生物有机肥产业化

这一项目是针对当前我国城镇普遍存在的有机固体废弃物的无害化处理展开的。其重点通过开发一种微生物发酵接种剂,开展城市污泥、农村畜禽粪便等的的好氧堆肥快速生物处理,这对于保障生态环境,推动有机固体废弃物的资源化利用以及大批生物有机肥企业的发展,有着重要的意义。     

规模化猪场仔猪水肿病的防治

主要论述了仔猪水肿病的发病原因.临床症状、病理变化和诊断方法,并提出了规模化猪场仔猪水肿病的预防和治疗措施.     

农村生活污水生态发展思路探讨

农村生活污水无序排放是造成农村面源污染的主要原因之一,造成农村生态环境严重恶化,阻碍地方经济发展.本文以新会区为例,探讨适合农村生活污水生态发展的模式,以最小的投入、最简单的工艺、最高效率的处理达到改善农村生态环境,实现污染减排规划目标,释放排污指标,突破环境保护瓶颈,保持地方经济可持续发展.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.