Dora Krezhova, Antoniy Stoev, Nikolay Petrov and Svetla Maneva
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.
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
Gabriel Wróbel, Maciej Rojek and Małgorzata Szymiczek
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.
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
Vilma Kemešytė, Nijolė Lemežienė, Vaclovas Stukonis and Juozas Kanapeckas
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
Science Journal 2015; 12 (6): 78–82
 Angelova R.A. Determination of the pore size of woven structures through image analysis. Central European Journal of Engineering 2012; 2(1): 129–135
 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
 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
A.M. Khan, S. Fiaz, I. Bashir, S. Ali, M. Afzal, K. Kettener, N. Mahmood and M. Manzoor
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
Agnieszka Gryszczyńska, Bogna Opala, Anna Krajewska-Patan, Zdzisław Łowicki, Waldemar Buchwald, Sebastian Mielcarek, Anna Bogacz, Monika Karasiewicz, Dariusz Boroń, Bogusław Czerny and Przemysław M. Mrozikiewicz
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