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The result shows: Land resource use have taken great changes from 1992 to 1998, but cultivated land reduces slowly; and the ensemble change is slowly from 1998 to 2002, but cultivated land change is antithetic; and orchard land is celery increase all the time.
第四章主要依靠构建多个相关数学模型,从时空角度分析了研究期内围场县土地利用变化的途径、特点,总结了土地类型转化的趋势,并初步探讨了土地利用变化的效益影响与驱动力。
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Two from TM or ETM+ and one from SPOT scenes, were used. Land use change areas were determined using the two change detection techniques of post-classification comparison and spectrum comparison.
按土地利用数据变化的监测、更新、分析与管理的技术路线,对长乐市1998-2000年的土地利用变化应用研究。
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Change countenance the plastics cup is my department at oneself produce of feeling change countenance material of foundation top the hair open of new product, cup's being pour into hot water or cold water will change countenance and change into another color from a kind of color.
变色塑料杯是我司在自身生产的感温变色材料的基础上发开的新产品,杯子在倒入热水或冷水都会变色,从一种颜色变为另一种颜色。
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On comparing with the common type 4, there are 18 genes presenting change in the rest 21 types, most of them are tRNA genes, and gene replacement, gene increase and gene absence are frequently happened; on the contrary, protein genes are more steady, gene change is mostly of gene replacement. The genome size of Gymnophiona are all smaller than 18000 bps and most of them range from 15000 to 16000 bps, those of Urodela and Anura are bigger than 16000 bps, most of Urodela range from 16000 to 17000 bps, most of Anura range from 17000 to 18000 bps.
与类型4比较,其余21种线粒体基因组类型涉及基因变动的基因共有18个,其中变动比较多的是tRNA基因,移位、增多和缺失的发生频率都较大,而蛋白编码基因比较稳定,主要是移位。78种两栖动物中,蚓螈目的线粒体基因组均小于18000bps,多数在15000~16000bps;有尾目和无尾目均大于16000bps,其中有尾目多数在16000~17000bps,无尾目的多数在17000~18000bps。
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NodD binds to and bends target promoters through anchoring two tandem and individual specific DNA sites. NodD functions as a tetramer, which has a V-shaped main body. Tetrameric NodD is to change its own conformation rather than its oligomeric forms in response to small signal molecules. The specific interaction between each NodD DNA-binding domain and each specific DNA site does not alter itself in spite of naringenin induction, and the induced conformational change is transferred from protein to DNA. Only the DNA conformation incited by induced NodD is competent for RNA polymerase to form the transcriptional open complex. It cannot be excluded that NodD may have protein-to-protein contacts with RNA polymerase, and that the NodD conformational change may also directly contribute to the transcriptional open complex formation. However, the NodD conformational change itself cannot serve as the determinant of the transcriptional molecular switch.
通过研究,我们提出了初步的NodD操纵子激活模型:第一,四聚体是NodD蛋白的功能单位,它通过铆钉两个串联的相对独立的DNA靶位点结合被诱导的启动子;第二,小分子配基的结合是改变NodD四聚体的构象而不是引发不同形式的寡聚体,在我们的模型中,NodD四聚体缩小其V形主体的弯折角,进而缩短其DNA结合功能域的间距;第三,小分子信号的诱导并没有改变NodD的DNA结合域和其DNA靶位点的相互作用,NodD的构象改变由蛋白质经其双铆钉位点传递给DNA;第四,只有诱导状态的NodD激发的DNA构象才能有效地使RNA聚合酶形成转录开放复合物;第五,不排除NodD与RNA聚合酶可能有直接的相互接触位点,不排除NodD构象的改变可能直接有利于RNA聚合酶形成转录开放复合物,但是我们认为NodD构象改变本身不是充当转录激活开关的决定因素。
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Without method, oneself tried to change a map to make a tool, who knew to change had done not have weight of page of a day of content to fall completely, before snapshot of film of a lot of serialize turned N into the day, the map shows like that wait for calm, the content in the map is different nevertheless, the map that makes previously has time and address only, did not update frequency and first step, what use from the back is online generate a tool to have first step and newer frequency, because the map from the back has first step,knowing is inside the first grade with acquiescent page is reduced bring about fall authority or what are other reason, stationmaster is here people the place that ace gathers, experienced and knowledgeable, my map now is to show all the time treat calm condition, the station is Http://www.dy3166.cn, home page weight did not change, namely inside page weight was done not have, hope ace people help seek next accounts, declare, oneself are acclaimed by no means in this hair post, was to come up against this a Gordian knot really, hope ace people can help solve below, thanked.
没有办法,自己试着换了个地图生成工具,谁知道换了没过一天内容页权重全降了,好多连载影片快照都变成了N天前的,地图那一样显示待定,不过地图里的内容不一样,以前生成的地图只有时间和地址,没有更新频率和优先级,后面用的在线生成工具有优先级和更新频率,不知道是不是因为后面的地图有优先级把内页默认的优先级别降低导致的降权还是什么其他原因,这里是站长们高手云集的地方,见多识广,我的地图现在一直都是显示待定状态,站是http://www.dy3166.cn,首页权重没有变,就是内页权重没有了,希望高手们帮忙找下原因,申明,本人在此发帖绝非炒作,是确确实实碰到了这个棘手的问题,希望高手们能够帮忙解答下,谢谢了。
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In about a century' s time, their livelihood of swidden agriculture has been changing greatly along with the natural and social environment change. Before 1950s, as a minor group frequently move in the subtropical mountainous area characterized by scarce arable land, high forest coverage rate and sparse population, Kemu people has long been engaged in swidden agriculture which was simple, called for no sophisticated production tools and was suitable for frequent movement. At that time, they adapted to the environment change mainly by moving frequently from one place to another, and their livelihood was featured by complete dependence on environment, frequent movement and swiddening without continuous cultivation. From 1950s to early 1970s, their way of adaptation changed into migration within defined territory and shortterm fallow featured by complete dependence on environment, migration within limited area and short fallow. In early 1970s, they leaned from outside to cultivate irrigated fields and plant cash forest and their livelihood was featured by complete dependence on environment and agro-forestry.
近一个世纪以来,随着其所处自然环境和社会环境的变迁,其刀耕火种的生计方式在不断地变化:20世纪50年代以前,作为频繁迁徙于山多地少、森林覆盖率高、人烟稀少的热带、亚热带山区的弱小族群,以开发容易,便于流动作业不需要复杂生产设施的刀耕火种为其传统的生计方式,主要以迁徙的方式对环境变迁进行调适,其刀耕火种生计方式的特征表现为完全依赖型、随意迁徙型、无轮作型;20世纪50年代至70年代,其主要以固定区域内迁徙和短期轮作的方式对环境变迁进行调适,其刀耕火种生计方式的特征表现为完全依赖型、在固定区域迁徙型、短期轮作型刀耕火种;20世纪70年代初,其主要以外文化——开拓水田及人工造林的方式对环境变迁进行调适,其刀耕火种生计方式的特征表现为部分依赖型、粮林轮作型刀耕火种;20世纪80年代以后,其主要以发展橡胶种植业对环境变迁进行调适,其刀耕火种生计方式的特征表现为暂时依赖型刀耕火种。
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The twig production of different clones is different, from 5.5 twigs per month to 14.8 twigs per month. The rooting rate, root number and root length change regularly as the concentration of IBA goes up from 0.05 to 2.00 mg/L. At the concentration of 0.05 mg/L ppm IBA, rooting rate and root length are the highest. Cutting substrate also has eminent effect on rooting rate and survival rate, 50% peat plus 50% sub-top soil is the best substrate. The survival rate differs greatly among clones, from 56.7% to 90.0%. Rooting rate and survival rate change regularly as season changes. The rooting rate of May and June is middle, that of July and August is high and that of September and October drops rapidly. The survival rate is low in May, September and October and high in June, July and August.
结果表明:不同无性系的萌条数量有显著差异,高的达14.8条/月,低的5.5条/月,平均9.1条/月,从0.05~2.00 mg/L,随着IBA浓度的提离,生根率、根条数、总根长等生根指标均呈现有规律的变化;综合考虑各种生根指标,以IBA0.05 mg/L为最佳生根激素处理,扦插介质对柚木插穗生根有显著的影响,以泥炭土+黄心土按1:1混合为最佳扦插介质;不同无性系的扦插成活率不同,从56.7%至90.0%,变动幅度大,随扦插季节变化,生根率和成活率均呈现有规律的变化,5~6月份的生根率中等,7~8月最高,9~10月份迅速下降,成活率随季节的变化也是两头低、中间高,6~8月的成活率最高,大于93%。
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2Unless the policy otherwise provides, where there is a chang e of voyage, the insurer is discharged from liability as from the time of change , that is to say, as from the time when the determination to change it is manifested; and it is immaterial that the ship may not in fact have left the course of voyage cont emplated by the policy when the loss occurs.
2除非保险单另有规定,如存在航程变更,保险人自该变更之时起,亦即,自变更决定被证明之时起,即免除责任;至于船舶发生灭失当时可能事实上尚未偏离保险单预定的航线则无关紧要。
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The new rT joint not only has two rotation axes that intersect at right angle,but also has another rotational degree of freedom which can be used to modify the assembly of other joints.This can change the mobility of the parallel mechanisms that assembled with the new rT joints and leads to two types of metamorphic paralllel mechanisms:In the first type,the mechanism changes its topology by turning the new rT joints in all limbs into different configurations which reconfigures the constraints within the limbs or the assembly of all the limb constraints.This change of mobility is completed by two cases.One is illustrated by a 3PS and a 3C parallel mechanism,by altering the rT joint into different configurations there will produce or reduce local degrees of freedom and thus change the constraits to the moving platform.This qualifies the 3PS and 3C to have variable mobility from 3 through to 6 and from 1 through to 6 respectively.
该铰链除了一般Hooke铰的两个轴线互相垂直相交的旋转自由度外,还增加了一个可以调节该两个轴线之一的姿态的一个旋转自由度,通过此自由度调节该rT铰到不同的装配构型,可以改变用其装配的并联机构的自由度,由此产生两类新型的并联变胞机构:一类是机构的各个支链中都有rT铰,该铰链的不同构型可以改变各支链对运动平台的约束或整个支链组的组合形式而改变机构的自由度状态,3PS和3C属于前者,通过调节rT铰到不同构型可以使其支链产生或消失局部自由度,从而减少或增加支链对运动平台的约束,使得并联变胞机构3PS和3C分别具有自由度从3变到6和从1变到6的能力;3P属于改变支链组组合形式的机构,其rT铰的不同构型将改变整个支链组的几何约束组合,使得并联变胞机构3P可以有三转动、三平动或三平移(来源:ABCded9de论文网www.abclunwen.com)一转动的自由度形式。
- 推荐网络例句
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And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.
同时,论述了一体化管理体系构建中的几个主要问题,包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。
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Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.
运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。
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If you're huffing and puffing at any point during the run, slow down and make sure you can take deep breathes.
如果你任何时候在跑步过程中气喘如牛,降低速度并且确保你能够深呼吸。