膨润土用作饲料添加剂可行性分析

运用全化学分析，X射线衍射分析，红外光谱分析，差热分析和等离子质谱等分析方法，对邯郸地区的6个膨润土样品的矿物成分，化学成分，理化性能和微量元素进行了分析，结果显示，邯郸地区的膨润土为钙基膨润土，通过人工钠化转化为钠基膨润土后，物化性能优良。邯郸膨润土中富含多种有益微量元素，而害微量元素如Cd、Pb、As、Hg和Cr等的含量却低于国家规定的标准。综合分析表明，邯郸膨润土可以满足作为矿物饲料添加剂的要求。     

双端口馈电微带漏波天线的仿真研究

对双端口馈电微带漏波天线的辐射特性进行了理论研究。通过改变微带漏波天线两端馈电端输入电流相位差，可以使微带漏波天线的主波束形式在单双波束扫描形式之间转换。仿真结果符合设计预期。而且发现了双端口馈电微带漏波天线的一种新特性，该特性可望应用于实现微带漏波天线频率固定下的主波束扫描。     

云南12种豆科灌木饲料中主要磷形态分析

 研究了云南12种豆科灌木饲料中磷的主要形态,经形态分离、提取并测出各形态含量.结果表明,总磷含量差异为106～330μg/g,大多数饲料所含无机磷均在24%～50%,所含有机磷为24.80%～63.9%.     

棕背伯劳的育雏行为

2005年4-6月,对四川南充市市郊的3个样地,共11个棕背伯劳巢的育雏行为进行了观察,重点观察其中4个巢,其它巢为补充观察.结果显示:育雏期15±1d,育雏期亲鸟的喂食模式有a,b,c3种,育雏前期,中期,后期,分别以模式c,模式b,模式a所占比重最大.雌鸟在3个育雏时期的暖雏高峰主要出现在8∶00-9∶00时和16∶00-17∶00时.喂食高峰在育雏前期和育雏中期都出现在10∶00-12∶00时和14∶00-16∶00时,育雏后期出现在12∶00-14∶00时和16∶00-18∶00时     

家庭装潢中水管的选择

在室内装潢方面，人们较注重室内布局和装饰，而对给水管道则极少关注．应引起足够的重视。在建筑给水系统中由新型塑料管材替代金属管材已成为趋势。所以，室内给水管应选用新型塑料管材，并且应根据新型塑料管材的特点进行施工。确保给水系统的安装质量。     

粉末送给率对激光熔覆层组织及性能的影响

在大量实验基础上，研究了激光熔覆过程对熔覆层组织和性能的影响。实验结果表明，随粉末送给率的增加，熔覆层厚度增加，熔覆层组织细化，熔覆层的硬度变化不大。     

香港巨牡蛎对不同密度2种浮游植物的摄食研究

【目的】探索大规模贝类养殖活动对养殖水体中不同密度和种类浮游植物的摄食差异和影响因素,为香港巨牡蛎滤食能力、控藻水平以及科学评估其养殖容量、生态影响的研究提供依据。【方法】在室内条件下研究大、中、小3种不同规格的香港巨牡蛎对不同密度的牟氏角毛藻、球等鞭金藻的清滤率和摄食率。【结果】在28℃水温和24‰盐度的实验条件下,香港巨牡蛎对牟氏角毛藻的单位个体清滤率和单位体重清滤率分别为1.29～5.49L·ind~(-1)·h~(-1)和0.62～1.84L·g~(-1)·h~(-1),对球等鞭金藻的单位个体清滤率和单位体重清滤率分别为2.58～8.40L·ind~(-1)·h~(-1)和1.18～3.17L·g~(-1)·h~(-1),香港巨牡蛎对牟氏角毛藻的清滤率及摄食率均低于球等鞭金藻。香港巨牡蛎单位个体清滤率和摄食率均表现出大规格中规格小规格的趋势,即单位个体的清滤率和摄食率随着贝类个体增大而增加。香港巨牡蛎对不同密度球等鞭金藻的单位体重清滤率和摄食率都随着个体增大而降低,但其对不同密度牟氏角毛藻的单位体重清滤率和摄食率随着个体大小的变化规律不一致。随着浮游植物密度的增加,香港巨牡蛎单位体重清滤率呈现出先升后降的趋势,在中等密度条件下香港巨牡蛎具有较高的单位体重清滤率。【结论】香港巨牡蛎的清滤率和摄食率除受牡蛎个体大小和浮游植物密度影响之外,还与浮游植物的种类、大小、营养质量等因子密切相关。     

Taxonomy of the arboreal polychaete Lycastopsis catarractarum Feuerborn (Namanereidinae: Nereididae), with a discussion of the feeding biology of the species

Lycastopsis catarractarum Feuerborn, 1931 is redescribed and a neotype designated. A full synonymy is given and all known records of the species are examined. Gut contents are analysed for two populations (Papua New Guinea and Fiji) and the feeding biology and ecology are discussed.     

How Stomaphis aphids use their giant proboscides

To penetrate tree bark, arboreal aphids of the genus Stomaphis Walk. (Hemiptera: Aphididae: Lachninae) have proboscides up to three times their body length. Our observations of S. quercus (L.) complement a recent analysis of the anatomy and function of these mouthparts by clarifying how these relatively short-legged aphids move their proboscides between the resting position, pointing back, and the prognathous working position. The absence of crumenae in Stomaphis aphids and their feeding technique are discussed.     

Morphology of thalassinidean (Crustacea: Decapoda) mouthparts and pereiopods in relation to feeding,ecology and grooming

The morphology of the mouthparts and pereiopods of three thalassinidean mudshrimps, Callianassa subterranea (Montagu), Jaxea nocturna Nardo and Upogebia stellata (Montagu) (Decapoda: Thalassinidea) are described. The distribution of setae is also described and related to function, in particular to feeding and grooming. The comparative morphology of the maxillipeds and pereiopods showed greatest differences between species and can be related to differences in feeding behaviour. Callianassa subterranea has mouthpart morphology and setation suitable for handling sediment particles and highly specialized pereiopods consistent with the digging activity of a deposit feeder. Upogebia stellata is the most densely setose of the three species and many of the appendages bear layered fringes of setae which are used to trap fine particles during suspension feeding. Jaxea nocturna appears to possess mouthpart and pereiopod setal combinations suitable for a fine sediment diet but is the least morphologically specialized species. It does not use its pereiopods in grooming behaviour. Specialized denticulate setae on the coxa of the third maxilliped may take over the gill grooming functions performed by the pereiopods of C. subterranea and U. stellata. In C. subterranea and U. stellata the feeding structures are adapted to a specific trophic mode but have features that allow other modes to be used, whilst J. nocturna is much less specialized and may represent a more primitive thalassinidean form.