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Scan sampling and Focal sampling methods were utilized to determine the behavior mode, daily rhythm and behavior trends of the nestlings of Great Bustard;Each growth indicator were measured to obtain the growing curves and equations;Correlation analysis was taken between the behavior and growth indicators of young Great Bustard to understand the relation between them.

本实验采用扫描取样法和目标取样法相结合观察大鸨雏鸟的行为模式,研究了大鸨雏鸟行为日节律及其行为随日龄增长的强度变化趋势;定期对大鸨雏鸟各生长指标进行测量,总结大鸨雏鸟的生长发育规律,拟合生长曲线和方程;对大鸨雏鸟的行为和生长发育指标进行相关性分析,确定生长指标与行为变化规律之间的关系。

Studied on sensitivities of C. ellipsoidea to kanamycin , Chloromycetin , Hygromycin , Streptomycin and Geneticin (G418), the results showed that C. ellipsoidea is not sensitive to Km, Str and Cm, 600μg/ml km, 600μg/ml Str and 200μg/ml Cm can not inhabited the growth of C. ellipsoidea. However, it is fairly sensitive to Hm, 100μg/ml can completely stop the growth of C. ellipsoidea on solid media. We also found that C. ellipsoidea was highly sensitive to G418, 30μg/ml and 15μg/ml can inhabit the growth of C.

通过5种基因工程中常用抗生素对小球藻生长抑制的研究发现:小球藻对卡那霉素、链霉素、氯霉素不敏感。600μg/ml的卡那霉素、600μg/ml的链霉素和200μg/ml的氯霉素仍不能抑制小球藻的生长;小球藻对潮霉素较为敏感,100μg/ml的用量可抑制固体培养中小球藻的生长;而对G418表现出高度敏感性,30μg/ml的G418即可完全抑制固体培养中小球藻的生长,15μg/ml的G418即可完全抑制液体培养中小球藻的生长

The optimum pH is 8-10 for hypha growth and 7-9 for conidiospore germination; The hypha could not grow on the culture medium which nitrogen source comes from urea and asparagines, but it could grow fast and produce more conidiospore on the culture medium which carbon source comes from maltose, glucose and lactose, and nitro0gen source come from glycine, histidiane and peptone.

该菌在PH 4~12范围内均能生长、产生分生孢子并萌发,菌丝生长的最适pH 8~10。,孢子萌发的最适PH 7~9;该菌不能在以尿素和天门冬酰氨为氮源的培养基上生长,但以麦芽糖、葡萄糖、乳糖、淀粉、甘氨酸、组氨酸和蛋白陈为碳源和氮源时,菌丝生长快、产孢量大;光照处理对该菌菌丝生长、产孢和孢子萌发无显著影响。

2Similar to other shrimps, artificial pond culture Penaeus monodon also had difference in growth between female and male. At early culture period, the difference between them was not distinct, but the female would grow more quickly than male after the fifty-ninth day. The body weight growth turning point of the male appeared at the 144.5 days, and at the 195. 3 days for the female.(3) By using Von Bertallanffy growth equation, the growth equations of Penaeus monodon were abtained.

养殖前期,雌、雄虾的体长、体重生长差异不明显,雄虾略高于雌虾,在59.6d后,雌虾体长生长速度高于雄虾;雄虾体重的生长拐点出现在144.5d左右,雌虾体重的生长拐点出现在195.3d左右;(3)采用von Bertallanffy生长方程,拟合出池塘养殖斑节对虾体长、体重生长方程为:。

By low temperature (145K) deposition method, we prepared such flat Pb films on the Si (111) substrate over a wide thickness range (from 10ML to 32ML). The unique growth behaviors were investigated by RHEED, STM and ARPES. A critical thickness of 10ML is established, at which the atomically flat Pb films become stable at room temperature. Between 10ML and 20ML, the growth exhibits a quasi bi-layer growth mode. Above 21ML, a layer-by-layer growth mode was observed.

采用低温生长的方法(衬底温度145K),通过对生长条件的优化,我们在Si(111)衬底上制备出了具有原子级平整度的Pb 薄膜,用STM 和ARPES确定了其特殊的生长模式:室温下成膜的临界厚度是10ML,随后是一种双层生长模式,覆盖度高于21ML 时,薄膜生长基本上是层状生长的模式。

Following successful modeling, rats of bFGF group were intratracheally injected with 400 U bFGF and rats of VEGF group with 2 μg VEGF, once a week for three times. MSCs group was injected 1 mL suspension of 4×109/L MSCs into tail vein. MSCs+VEGF group was injected MSCs into tail vein and intratracheally injected VEGF (2 ug, three times) at the same time. Model control and normal control groups were intratracheally injected with equal volume of sodium chloride.

成功造模后,碱性成纤维细胞生长因子组气管内注入400 U碱性成纤维细胞生长因子,血管内皮生长因子组气管内注入2 μg血管内皮生长因子,1次/周,共3次;单纯细胞移植组于尾静脉注入4×109 L-1骨髓间充质干细胞悬液1 mL;血管内皮生长因子+细胞移植组气管内注入血管内皮生长因子的同时,尾静脉注入骨髓间充质干细胞;模型对照组、正常对照组给予相同体积的生理盐水。

According to thefunction, the conclusions for L.olgensis and C.lanceolata are asfollows:1CCF<200,showing growth with constant tree number;2200≤CCF≤300 transition from growth with constant tree number to theself-thinning,in other words,the change of SDI can be described aslinear combination between the growth with constant tree number andthe self-thinning;3CCF>300,growth in the self-thinning.

建立了CCF与林分密度指数和单位面积林木株数之间的函数关系式,并对长白落叶松和杉木得出:(1)CCF<200。林分为等株数生长:(2)200≤CCF≤300时。为等株数生长向自然稀疏生长的过渡期,该期间林分密度指数的变化可用等株数生长和自然稀疏生长的线性组合来表达:(3)CCF>300时,林分为完全的自然稀疏生长

This course is an attempt to give the students the basic idea and method of forest management in order to prepare the management plan; Place of forest management in forestry; Content of forest management; Guide principles of forest management; Sustained working; Silvicultural system; Forest yield; Increment; Volume increment; Quality increment; Price increment; Total price increment; Forest maturity; Indicating percent; Productive stage; Physical rotation; Technical rotation; Rotation of maximum volume yield; Highest forest rent rotation; Financial rotation; Cutting cycle of selection system; Normal forest; Normal distribution of age classes; Normal arrangement of stands; Normal increment; Normal growing stock; Normal yield; Improvement of actual forest; Reserve forest; Reserve fund; Planning and plan of forest management; Forest regulation; Area allotment; Volume allotting method; Volume frame work; Area-volume combined frame work; Growing stock; Utilization percent method; Difference method; Pure age-class; Growth method; Control method; Forest subdivision; Forest surveying; Forest survey; Certainty of future policy of forest; Selection of species; Decision of silvicultural system; Decision of rotation; Regulation of future yield; Preparation of management plan; Working the plan; Control and revision of management

本课程之目的为使学生了解森林经营之基本观念及方法,以期编订经营计划,课程包括森林经营学在林学上之地位、森林经营学之内容、森林经营之指导原则、保续作业、森林作业法、森林收获、生长、材积生长、形质生长、腾贵生长、总价格生长、林木成熟期、指率、生产期、自然轮伐期、工艺轮伐期、材积收获最多轮伐期、森林纯益最大之轮伐期、财政轮伐期、择伐林之回归期、法正林、法正龄级分配、法正林分排列、法正生长、法正蓄积、法正伐采额、现时林之改良、预备林、预备金、森林经营上之规划及计划、收获预定、面积配分法、材积配分法、材积平分法、折衷平分法、蓄积法、利用率法、较差法、纯粹龄级法、生长量法、稽核法、森林区划、森林测量、森林调查、将来森林经营方针之确定、树种之选定、作业法之决定、轮伐期之判定、将来收获之预定、经营管理计划之编订、计划之执行、经营管理计划之稽核与检订。

Some strains of the nematode-bearing bacteria were bioassayed for their parasitism. All these bacteria can totally not grow or grows badly on the media incorporating the extracts of pine trees, indicating some substances existing in the trees will harmful to the bacterial strains, which is further convinced by preliminary inoculation showing that single bacterial species will not infect Pinus thugbergii. Hence, the growth and reproduction of the nematode-carrying bacteria, which could produce toxic substances causing the death of the tree cells, is closely related to the nematodes, when they first enter to the trees. In the same time, the activity of bacteria improved the circumstances for which nematodes are living, which in turn will beneficial to the growth of nematodes. Thus, there is a complicated interaction among nematodes, bacteria, and pine trees.

对松材线虫携带的细菌的部分菌株进行了寄生性测定,表明这些细菌在添加松树提取液的细菌培养基中不能生长或基本不能生长,这说明松树体内可能存在某些不利于细菌生长的物质,同时初步的接种试验证实,单独的细菌接种不能感染健康的黑松,因此,线虫携带的致病细菌在最初进入树体时,其生长和繁殖与线虫密切相关,结合细菌产生的毒性物质可造成黑松细胞死亡的情况,说明细菌的生长与线虫有关,同时,细菌的活动改变了线虫在松树内的生长环境,使环境变得有利于线虫的生活,因此,线虫、细菌和松树三者存在着复杂的生物关系。

The results show that the growth rate of tetrapod ZnO is controlled by spiral growth and its crystallization is via VLS model. The condensation of tiny zinc droplets in zinc vapor is the key factor of the formation of tetrapod ZnO. The growth steps are formed on the terminated faces as zinc diffuses outwards and the elongation of whiskers continues until zinc inside the droplets is depleted. VS crystallization, which has little effect on the elongation growth, takes place on side faces of the whiskers and consequently makes the whiskers radius increase.

结果表明: T-ZnO晶须的结晶作用是气-液-固方式,晶须生长受螺旋生长机理控制;锌蒸气中产生凝聚生长的锌液滴是制备T-ZnO晶须的关键,锌从液滴内向外扩散在晶须的端面产生生长台阶,随着液滴内的原子向外不断扩散,针体部分就不断地伸长生长,当液滴内的原子全部消耗尽时,晶须便不再发生轴向生长;气-固方式的作用主要是促进晶须棱面生长而使晶须变粗,对轴向生长几乎没有影响。

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