Sandwich composites have been used as lightweight materials in aircraft manufacturing for a long time, from balsa wood sandwich the 1930s to honeycomb and fiber-reinforced polymers sandwich. Its characteristics are considered 'perfect' material aircraft, which has high strength with low density. common floor panels. The core is usually made of Nomex or aluminum honeycomb, while skin 1 "“ 2 ply ...

MOTIVATION Giving a meaningful representation of a pedigree is not obvious when it includes consanguinity loops, individuals with multiple mates or several related families. RESULTS We show that finding a perfectly meaningful representation of a pedigree is equivalent to the interval graph sandwich problem and we propose an algorithm for drawing pedigrees.

Air-conditioning system plays a significant role in providing users a thermally comfortable indoor environment, which is a necessity in modern buildings. In order to save the vast energy consumed by air-conditioning system, the building envelopes in envelope-load dominated buildings should be well designed such that the unwanted heat gain and loss with environment can be minimized. In this pape...