7,820 research outputs found
Design and evaluation of an integrated Quiet, Clean General Aviation Turbofan (QCGAT) engine and aircraft propulsion system
The design was based on the LTS-101 engine family for the core engine. A high bypass fan design (BPR=9.4) was incorporated to provide reduced fuel consumption for the design mission. All acoustic and pollutant emissions goals were achieved. A discussion of the preliminary design of a business jet suitable for the developed propulsion system is included. It is concluded that large engine technology can be successfully applied to small turbofans, and noise or pollutant levels need not be constraints for the design of future small general aviation turbofan engines
Brain asymmetry and facial attractiveness: Facial beauty is not simply in the eye of the beholder.
We recently reported finding asymmetry in the appearance of beauty on the face [39]. Here we investigated whether facial beauty is a stable characteristic (on the owner's very face) or is in the perceptual space of the observer. We call the question 'the owner versus observer hypothesis'. We compared identity judgements and attractiveness ratings of observers. Subjects viewed left-left and right-right composites of faces and decided which most resembled the normal face (Experiment 1). Identity judgements (resemblance) are known to be associated with perceptual factors in the observer. Another group viewed the same normal faces and rated them on attractiveness (Experiment 2). In each experiment there were two separate viewing conditions, original and reversed (mirror-image). Lateral reversal did affect the results of Experiment 1 (confirming previous findings [3,18]) but did not affect the results of Experiment 2. The fact that lateral reversal did not affect the results of Experiment 2 suggests that facial attractiveness is more dependent on physiognomy (of the owner) and less dependent on an asymmetrical perceptual process (in the observer) than is facial identity. The results are discussed in the context of beautyÂ’s biological significance and facial processing in the brain
THE HISTORICAL BASIS RECORD FOR GRAIN AND SOYBEANS IN DELAWARE; MARKETING YEARS 1999/00 TO 2003/04
Basis is used in the grain marketing industry as a guide in making all grain marketing decisions. Historical basis records for given geographical locations should be updated periodically. The historical basis record for the most recent three to five year period is necessary to effect grain marketing decisions. This publication updates the historical basis record for corn, soybeans, and wheat for the 1999/00 to 2003/04 Marketing Years. The following can be used in effecting current grain marketing decisions: Five-year average basis table summaries for Northern and Southern Eastern Shore Corn can be found on pages 18 and 24. Corresponding graphical illustrations are given on pages 59 and 65. Five-year average basis table summaries for Northern and Southern Eastern Shore Soybeans can be found on pages 30 and 36. Corresponding graphical illustrations are given on pages 71 and 77. Five-year average basis table summaries for Northern and Southern Eastern Shore Wheat can be found on pages 42 and 48. Corresponding graphical illustrations are given on pages 83 and 89.Crop Production/Industries, Marketing,
THE HISTORICAL BASIS RECORD FOR GRAIN AND SOYBEANS IN DELAWARE; MARKETING YEARS 1998/99 TO 2002/03
Crop Production/Industries, Marketing,
THE HISTORICAL BASIS RECORD FOR GRAIN AND SOYBEANS IN DELAWARE; MARKETING YEARS 1996/97 TO 2000/01
Crop Production/Industries, Marketing,
Digestion of Protein in Premature and Term Infants.
Premature birth rates and premature infant morbidity remain discouragingly high. Improving nourishment for these infants is the key for accelerating their development and decreasing disease risk. Dietary protein is essential for growth and development of infants. Studies on protein nourishment for premature infants have focused on protein requirements for catch-up growth, nitrogen balance, and digestive protease concentrations and activities. However, little is known about the processes and products of protein digestion in the premature infant. This review briefly summarizes the protein requirements of term and preterm infants, and the protein content of milk from women delivering preterm and at term. An in-depth review is presented of the current knowledge of term and preterm infant dietary protein digestion, including human milk protease and anti-protease concentrations; neonatal intestinal pH, and enzyme activities and concentrations; and protein fermentation by intestinal bacteria. The advantages and disadvantages of incomplete protein digestion as well as factors that increase resistance to proteolysis of particular proteins are discussed. In order to better understand protein digestion in preterm and term infants, future studies should examine protein and peptide fragment products of digestion in saliva, gastric, intestinal and fecal samples, as well as the effects of the gut micro biome on protein degradation. The confluence of new mass spectrometry technology and new bioinformatics programs will now allow thorough identification of the array of peptides produced in the infant as they are digested
THE IMPACT OF RESPONDENTS' CHARACTERISTICS ON PURCHASING DECISIONS
Consumer/Household Economics,
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