Search Results

11 - 20 of 239 items :

  • fiber identification x
Clear All
Application of remote sensing techniques for the identification of biotic stress in plum trees caused by the Plum pox virus

Abstract

Two hyperspectral remote sensing techniques, spectral reflectance and chlorophyll fluorescence, were used for the identification of biotic stress (sharka disease) in plum trees at an early stage without visible symptoms on the leaves. The research was focused on cultivars that are widely spread in Bulgaria: ‘Angelina’, ‘Black Diamond’ and ‘Mirabelle’. Hyperspectral reflectance and fluorescence data were collected by means of a portable multichannel fibre-optics spectrometer in the visible and near infrared spectral ranges (400-1000 nm). Statistical and deterministic analyses were applied for assessing the significance of the differences between the spectral data of healthy (control) and infected plum leaves. Comparative analyses were performed with complementary serological test DAS-ELISA, broadly implemented in plant virology. The strong relationship that was found between the results from the two remote sensing techniques and serological analysis indicates the applicability of hyperspectral reflectance and fluorescence techniques for conducting health condition assessments of vegetation easily and without damage before the appearance of visible symptoms.

Open access
A Review of the Radio Frequency Non-destructive Testing for Carbon-fibre Composites

References [1] Soutis, C. (2005). Carbon fiber reinforced plastics in aircraft construction. Materials Science and Engineering A, 412 (1-2), 171-176. [2] Zhang, J., Shi, C., Ma, Y., Han, X., Li, W., Chang, T., Wei, D., Du, C., Cui, H.L. (2015). Spectroscopic study of terahertz reflection and transmission properties of carbon-fiber-reinforced plastic composites. Optical Engineering, 54 (5), 054106. [3] Pozar, D.M. (2009). Microwave Engineering. John Wiley & Sons. [4] Tse, K.W., Moyer, C.A., Arajs

Open access
Immunohistochemical Localization of Elastic System Fibres in the Canine Prostate

REFERENCES 1. Augsburger, H. R., 1997: Elastic fibres system of the female canine urethra. Histochemical identification of elastic, elaunin and oxytalan fibres. Anat. Histol. Embryol. , 26, 297—302. 2. Dass, N., McMurray, G., Brading, A. F., 1999: Elastic fibres in the vesicourethral junction and urethra of the guinea pig. J. Anat. , 195, 447—453. 3. Delella, F. K., Felisbino, S. L., 2010: Doxazosin treatment alters stromal cell behaviour and increases elastic system fibres deposition in rat prostate. Micr. Res. Tech. , 73, 1036

Open access
PAN fibers with nanoprecipitated Ag and Au for use in textronics

Committee, 2004. Gniotek K. Metodyka identyfikacji pewnych właści-wości obiektów włókienniczych (Methodologies for the Identification of Textile Objects Certain Properties) Polish Academy of Science Lodz Division Textile Committee 2004 [2] Gniotek K., Stempień Z., Zieba J., Przeglad Włóki-enniczy - Włókno, Odzież, Skóra, (Textile Review: Fiber, Garments, Leather) , 2 (2003), 17. Gniotek K. Stempień Z. Zieba J. Przeglad Włóki-enniczy - Włókno, Odzież, Skóra, (Textile Review: Fiber, Garments, Leather) 2 2003 17 [3] Lind E.J., Eisler R., Burghart G., Jayara-man S., Park

Open access
Mechanical properties evaluation and ultrasound diagnosis of unsaturated polyester-glass pipes

Abstract

The purpose of the present work was the elaboration of research methodology of the exhaustion degree of performance properties of pipes based on unsaturated polyester and glass fibers, which were manufactured by the cross winding method on a poly(vinyl chloride) core. Within the frame of the work we conducted fatigue-ageing tests being the simulation tool of the degradation process of polyester-glass pipes. Diagnosis of the composite material condition was conducted with the use of nondestructive ultrasonic testing with the application of the echo method, in which the transition time of ultrasonic wave was determined as the identifying parameter. The registered transition time of ultrasonic wave allowed the identification of the material condition during the course of pipes exploitation.

Open access
The structure and properties of eucalyptus fiber/phenolic foam composites under N-β(aminoethyl)-γ-aminopropyl trimethoxy silane pretreatments

(03)00210-0. 6. Shen, H. & Nutt, S. (2003). Mechanical characterization of short fiber reinforced phenolic foam. Composites Part A: Applied science and manufacturing. 34(9), 899–906. DOI:10.1016/S1359-835X(03)00136-2. 7. Bledzki, A. & Gassan, J. (1999). Composites reinforced with cellulose based fibres. Prog. Polym. Sci. 24(2), 221–274. DOI: 10.1016/S0079-6700(98)00018-5. 8. Canche-E scamilla, G., Cauich-Cupul, J., Mendizabal, E., Puig, J., Vazquez-Torres, H. & Herrera-Franco, P. (1999). Mechanical properties of acrylate-grafted henequen cellulose

Open access
Morphological and Anatomical Traits of Short-Lived Ryegrass

species of the genus Lolium . Gen. Res. Crop Evol. , 47 , 247-255. Brown, R. N., Barker, R. E., Warnke S. E., Cooper, L. D., Brilman, L. A., Rouf Mian, M. A., Jung, G., Sim, S.-C. (2009). Identification of quantitative trait loci for seed traits and floral morphology in a field-grown Lolium perenne x Lolium multiflorum mapping population. Plant Breeding , 129 , 29-34. Cojocariu, L., Moisuc, A., Radu, F., Marian, F., Horablaga, M., Bostan, C., Sarateanu, V. (2008). Qualitative changes in the fodder obtained from forage legumes and

Open access
Modeling of Air Permeability of Knitted Fabric Using the Computational Fluid Dynamics

Science Journal 2015; 12 (6): 78–82 [8] Angelova R.A. Determination of the pore size of woven structures through image analysis. Central European Journal of Engineering 2012; 2(1): 129–135 [9] Zupin Z., Hladnik A., Dimitrovski K. Prediction of one-layer woven fabrics air permeability using porosity parameters. Textile Research Journal 2011; 82(2): 117–128 [10] Polipowski M., Więcek P., Więcek B., Jasińska I. Study on Woven Fabric Structure Using 3D Computer Image Analysis for In-Depth Identification of Thread Channels. Fibres and Textiles in Eastern

Open access
Estimation of Genetic Effects Controlling Different Plant Traits in Cotton (Gossypium Hirsutum L.) Under Clcuv Epidemic Condition

References Ahmad, G., S.A. Malik, Z. Mamood, M.Z. Iqbal, S. Ahmad & S. Ahmad (2002). Effect of cotton leaf Curl virus disease on morphology, yield and fibre characteristics of susceptible lines/cultivars of cotton (Gossypium hirsutum L.). Asian. J. Plant Sci., 1:705-707. Ahmad, S., N. Islam, A. Mahmood, F. Ashraf, K. Hayat & M. Hanif (2010). Screening of cotton germplasm against cotton leaf curl virus. Pak. J. Bot., 42:3327-3342. Ahuja, S.L. & L.S. Dhayal (2007). Combining ability estimates for yield and fibre

Open access
Novel method of detection of phenylpropanoids of Rhodiola roots species

medicine Rhodiola Kirilowii (Regel) Maxim against HCV NS 3 serine protease. Antiviral Res 2007; 76:86-92. 7. Yousef GG, Grace MH, Cheng DM, Belolipov IV, Raskin I, Lila MA. Comparative Phytochemical characterization of three Rhodiola species. Phytochemistry 2006; 67:2380-2391. 8. Yang LM, Hu R, Fu HZ. A new cyano-compound from Rhodiola kirilowii. ChinHerb Med 2011, 3(4):241-243. 9. Patselo A, Jalonen J, Tolonen A, Identification of flavonoids of Rhodiola rosea by liquid chromatographytandem mass spectrometry. J Chromatogr A

Open access