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151.
152.
王发良 《四川畜牧兽医学院学报》2007,5(2):148-150
随着时代迈入21世纪,企业并购频频发生,并且其规模有着越来越大的趋势。然而并购前大量一致被看好的案例,在并购发生后,结果都差强人意。其根本原因在于人们习惯于从企业硬件方面来看问题,而忽略了企业文化(软件)的差异性。本文通过分析企业文化差异性对企业并购的影响,最后提出规避企业文化差异性对并购不利影响的几点建议。 相似文献
153.
甘肃省土地资源可持续利用定量评价 总被引:1,自引:0,他引:1
毛笑文 《干旱地区农业研究》2006,24(3):115-120
从资源、环境、经济和社会4方面构建土地资源可持续利用评价指标模型,并选择23个参评因子,对甘肃省土地资源可持续利用空间差异进行定量分析,发现甘肃省土地资源可持续利用水平有明显的空间差异,认为各地在资源开发、经济发展、社会进步和环境保护方面有待进一步协调。 相似文献
154.
《The Journal of Applied Poultry Research》2006,15(3):355-361
This experiment was conducted to determine the effects of cage location and tier level with respect to light intensity on egg production and egg quality of hens housed in a semiconfined facility. Hens (ISA Brown, n = 225) at 75 wk of age were placed into 3-tier cages as top (T), middle (M), and bottom (B) tiers located in cages illuminated artificially (EI), by window (FW), or between corridors (C) for 2 mo. Light intensity was measured monthly for each cage at 5 cm from feeders every 6 h. Egg production was recorded daily and egg quality was assessed biweekly. Light intensity was the greatest for cages in the FW group (151.9, 119.8, and 89.8 lx for tiers T, M, and B, respectively), followed by EI (52.6, 54.5, and 51.0 lx for tiers T, M, and B, respectively), and C (44.5, 23.4, and 4.7 lx for tiers T, M, and B, respectively). Hens at location EI had greater egg production than hens at FW and C. Egg production for hens at tier T was also greater than for hens at tiers M and B. Egg production for hens at EI and C decreased quadratically, whereas that for hens at FW decreased linearly from tiers T to B. Cage location, but not tier level, affected egg weight. Hens at EI and FW produced heavier eggs than hens at C. Shape index, yolk color, and yolk index were independent of cage location and tier level. Hens at EI and FW produced eggs with thinner and weaker shells than hens at C. Moreover, eggshell strength increased linearly from tier T to B. Both albumen index and Haugh unit were the greatest for hens at FW, followed by EI and C. Their responses to cage location varied with tier levels. In conclusion, variation in light intensity in multitier cage systems in semiconfined laying hen houses may be a contributing factor for depressed laying performance and egg quality. 相似文献
155.
利用物体运动的连续性,将移动节点的运动规律与距离测量相结合提出了运动预测定位算法,该算法不需要额外的硬件支持,适应能力强,在信标节点密度比较低时提高了性能. 相似文献
156.
郭金霞 《农业机械化与电气化》2008,(5)
焊工工艺学是培养学生全面掌握中级电焊工工艺技术理论知识的专业课程,其涵盖面广,学生学习吃力,教学难度较大。为使学生全面、彻底地掌握焊工工艺学课程的内容,运用比较教学法授课,收到较好的效果。 相似文献
157.
Influence of terminal rig configuration on the anatomical hooking location of line-caught yellowfin bream, Acanthopagrus australis 总被引:1,自引:0,他引:1
P. A. BUTCHER & M. K. BROADHURST D. REYNOLDS S. C. CAIRNS 《Fisheries Management and Ecology》2008,15(4):303-313
Abstract Experiments were carried out to test the dependence of anatomical hooking location on terminal rig configuration, and identify strategies by which hook ingestion can be minimised to reduce post-release mortality of angled yellowfin bream, Acanthopagrus australis (Günther). Eighty-five anglers targeted yellowfin bream using different designs and sizes of circle and J hooks and recorded technical, environmental and biological data for each landed fish. Considerably fewer fish (16.6 and 8.5%, respectively) ingested hooks than those hooked in the mouth (82.1 and 88.6%), and a greater percentage of J hooks were ingested than circle hooks or a J hook modified with a 15-mm horizontal bar. Irrespective of hook type, the rate of ingestion also declined with increasing hook weight and decreasing fish size. In cage experiments, significantly more hooks baited with natural soft baits (e.g. intestines and cephalopods) were ingested than those baited with artificial baits, crustaceans or teleosts, while in the field fewer hooks were ingested using artificial bait (e.g. bread and pellets) than terrestrial animals, teleosts, crustaceans, teleost or terrestrial animal intestines, cephalopods or polychaetes. Similarly, rigs with floats, short traces or a sinker only on the hook, along with angling in environments with at least some current reduced ingestion. Based on this study, anglers targeting yellowfin bream should be encouraged to use circle or modified J hooks and, regardless of the hook design, the largest hook size possible attached to short traces or a sinker only and hard baits. 相似文献
158.
本文对霍尔效应测量中的热能流引起的不等位电势误差提出了自己的见解,然后着重研究消除系统误差的方法,并对实验结果进行了评述. 相似文献
159.
160.
语用失误分为语用语言失误和社交语用失误,是由于母语的影响、文化的差异、不同的价值观念以及教学不当等原因造成的.笔者结合实例分析了语用失误的类型和成因后,提出了在外语教学中克服语用失误应采取的措施. 相似文献