In this paper, we designed an automatic ground cleaning machine for the dedusting rooms of chicken houses to replace manual daily dust particles and fluff. The mainly comprised a power system, control frame walking structure, system. movement body in two vertical directions without turning, lifting, lowering sweeper; retraction expansion sweeper support arm; reciprocating relative body; timely ...

Campylobacter jejuni is a major cause of bacterial food-borne infection in the industrial world. There is evidence that C. jejuni is present in eggs and hatchery fluff, opening the possibility for vertical transmission from hens to progeny. Poultry operations in Iceland provide an excellent opportunity to study this possibility, since breeding flocks are established solely from eggs imported fr...

The properties of interstellar matter at the Sun are regulated by our location with respect to a void in the local matter distribution, known as the Local Bubble. The Local Bubble (LB) is bounded by associations of massive stars and fossil supernovae that have disrupted dense interstellar matter (ISM), driving low density intermediate velocity ISM into the void. The Sun appears to be located in...

I was the shadow of the waxwing slain By the false azure in the windowpane; I was the smudge of ashen fluff-and I Lived on, flew on, in the reflected sky. PREFACE This thesis is thought to be reflective of the transformation, mistily rendered in the citation on the previous page, which has taken place in me since I have handed in my Ph.D. thesis in the spring of 1996. If this transformation, no...

A rapid, sensitive, and specific polymerase chain reaction (PCR) assay was developed for the direct detection of Campylobacter in environmental samples from hatcheries. PCR, with a set of primers specific for the Campylobacter flaA short variable region (SVR), detected the presence of Campylobacter in both fluff and eggshell samples; however, a determination of whether the organism was living o...

The text is less daunting than the packaging, and, unusually, Nancy Baker plunges into the subject on page 1 without any kind of preliminary fluff about imaging techniques or radiological philosophy. The illustrations are fine, especially the radiographs, and everything is set out very generously with expanses of blank page to flatter your reading rate with a break to put the kettle on you coul...

DOCUMENT RESUME TM 017 260 Kane, Michael T. Generalizing Criterion-Related Validity Evidence for Certification Requirements across Situations and Specialty Areas. American Coll. Testing Program, Iowa City, Iowa. ACT-RR-90-3 May 90 26p. ACT Research %eport Series, P.O. Box 168, Iowa City, IA 52243. Reports Evaluative/Feasibility (142) MF01/PCO2 Plus Postage. *Certification; Comparative Analysis;...