Pterospermum acerifolium plant is considered to be laxative, anthelmintic, stomachic and used in inflammation, blood disorders, ulcers and leprosy. The wood was studied for pharmaconostic evaluations, including examination of morphological and microscopic characters, determination of ash values and extractive values. The morphological studies revealed that the wood is yellowish in color with sm...

Angiosperm trees reorient their woody stems by asymmetrically producing a specialized xylem tissue, tension wood, which exerts a strong contractile force resulting in negative gravitropism of the stem. Here, we show, in Populus trees, that initial gravity perception and response occurs in specialized cells through sedimentation of starch-filled amyloplasts and relocalization of the auxin transp...

High-performance microfibers such as carbon fibers are widely used in aircraft and wind turbine blades. Well-aligned, strong microfibers prepared by hybridizing two-dimensional (2D) graphene oxide (GO) nanosheets and one-dimensional (1D) nanofibrillated cellulose (NFC) fibers are designed here for the first time and have the potential to supersede carbon fibers due to their low cost. These well...

This report discusses the biometry and microscopic features of Crataegus azarolus wood fibers. A tree was selected cut from gardens Neka city (Mazandaran province). At a breast height, 2.5 m 3.5 three 5 cm thick disks were prepared in transverse direction, test samples evaluated sequentially 2 x long by 3 pith to bark. The anatomical properties C. studied using light microscope. Wood are as fol...

Xylan is the major hemicellulose in dicot wood. Unraveling genes involved in the biosynthesis of xylan will be of importance in understanding the process of wood formation. In this report, we investigated the possible role of poplar GT47C, a glycosyltransferase belonging to family GT47, in the biosynthesis of xylan. PoGT47C from the hybrid poplar Populus alba x tremula exhibits 84% sequence sim...

The surfaces of poplar wood fibers were modified using high-temperature hot air (HTHA) treatment and silane coupling agent. The single factor test was then used to investigate the performances (e.g., the change of functional groups, polarity, cellulose crystallinity, and thermal stability) of modified poplar wood fibers (mPWF) through Fourier transform infrared spectrometry, X-ray diffraction a...

Abstract. A mobile pilot-scale biofilter testing laboratory, which consisted of oneand two-stage biofilter reactor barrels, was developed where two types of wood chips (western cedar and hard wood) were examined to treat odor emissions from a deep-pit swine finishing facility in central Iowa. The biofilters were operated continuously from July 20 to October 17, 2007 at different air flow rates ...

Transmittance and reflectance from spruce wood and bovine ligamentum nuchae as two different fibrous media are examined by time-of-flight spectroscopy for varying source detector separations and several orientations of the fibers in the sample. The anisotropic diffusion theory is used to obtain the absorption coefficient and the diffusion coefficients parallel and perpendicular to the fibers. T...

Biomass materials are being investigated and utilized in an ever-widening sphere of industrial scale applications. As this realm of utilization expands, fundamental knowledge of potential feedstocks becomes paramount. This study was undertaken to observe the chemical composition and thermogravimetric behavior of one set of biomass materials. This set includes fibers or ground portions of: corn ...

Fiber dimensions and lignin and cellulose content of various highly productive, non-wood plants and agricultural residues were examined to assess their suitability for paper production. Plants like kenaf (Hibiscus cannabinus L.) and giant reed (Arundo donax L.) internodes gave very good derived values, especially slenderness ratio, which is directly comparable to some softwood and most hardwood...