the present experiment was carried out to assess the general combining ability (gca) and specific combining ability (sca) of six important commercial cultivars of gossypium hirsutum l. of venezuela, viz., ‘deltapine 16’, ‘tamcot-sp-21’, ‘cabuyare’, ‘stoneville’, ‘ospino’ and ‘acala 90-1’ and their 15 f1 hybrids, respectively. the data were analyzed using griffing’s model i method ii. significan...

In this paper, an application of negative curvature hollow core fiber (NCHCF) in an all-fiber, multiphoton fluorescence sensor setup is presented. The dispersion parameter (D) of this fiber does not exceed the value of 5 ps/nm × km across the optical spectrum of (680-750) nm, making it well suited for the purpose of multiphoton excitation of biological fluorophores. Employing 1.5 m of this fibe...

We present the results of studies of fiber ring reflectors that are pulse excited in the negative dispersion regime. An intensity-dependent fiber switch is proposed for improved thresholding and pulse output characteristics over those previously reported. Schemes for fiber switches relying on solitary-wave collisioninduced phase shifts are also discussed. A pulse regenerator and logic gates are...

This paper describes triaxial compression tests conducted to determine the effect of fiber inclusion on stiffness and deformation characteristics of sand-gravel mixtures. Tested soil was a mixture of Babolsar sand from the shores of the Caspian Sea and Karaj River gravel. Portland cement was used as the cementing agent and fibers 12mm in length and 0.023mm in diameter at 0%, 0.5% and 1.0% were ...

A total of 264 pigs (initially 41.0 kg BW) were used in a 90-d study to determine the effects of lowering dietary fiber before market on pigs fed high dietary fiber [provided by wheat middlings (midds) and distillers dried grains with solubles (DDGS)] on growth performance, carcass characteristics, carcass fat quality, and intestinal weights of growing-finishing pigs. Pens of pigs were randomly...

The aim of this work was to quantify the effects of psyllium fiber addition to wheat flour at the levels of 0, 1, 2, 3 and 4% on the rheological behavior of the dough. The rheological properties of the dough were investigated using the rheological device, Farinograph. Upon the addition of psyllium fiber, a significant increase in Farinograph water absorption, simultaneously with the increase of...

We demonstrate a photophoretic assembly and migration of dielectric (SiO(2) and TiO(2)) particles and bacteria (Escherichia coli) in liquids by using a subwavelength diameter fiber. With a lightwave at 1.55 μm launched into the fiber, the objects are radiated by the leaking light of the fiber to yield negative photophoretic forces which drive the objects to move toward the fiber, with an averag...

In this paper we discuss the limits of attenuation of silica hollow core negative curvature fibers in the wavelength range from 800 nm up to 4.5 µm. Both numerical and experimental results are presented and show good agreement. A minimum attenuation of 24.4 dB/km was measured at around 2400 nm wavelength, while 85 dB/km was measured at 4000 nm.