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Fuzzy Based Scaling Rotational and Transformation for Invariant Texture Classification
Palanivel N,Gokulavani S 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.2
Texture classification is important step in image processing and computer vision applications. The proposed method offers efficient way to classify the invariant texture using discrete shearlet transform and fuzzy logic. The texture features of an image are represented using shearlet energy features and shearlet co-occurrence features. These features are obtained from block based energy form of shearlet decomposed image using two levels of discrete shearlet transform with two directions and by varying the block size. Finally, the obtained parameters are used to classify the texture in an image using fuzzy logic classifier.
Palanivel, S.,Jayabalan, N. The Korean Society of Plant Biotechnology 2000 Plant molecular biology and biotechnology research Vol.2 No.1
An efficient method of shoot regeneration of peanut is described. In vitro shoot organogenesis from the callus of cotyledon explants of Arachis hypogaea L. was stimulated by addition of Adenine sulphate (Ads) along with 6 - benzylaminopurine (BAP) and - napthalene acetic acid (NAA). Ads (13 ${\mu}{\textrm}{m}$) had a stimulatory effect on shoot bud differentiation when combined with BAP (13 ${\mu}{\textrm}{m}$) and NAA (2 ${\mu}{\textrm}{m}$). Shoot organogenesis was markedly higher (92%) from callus induced on Ads, BAP and NAA combined media than from those formed by the individual supplementation of Ads or BAP with NAA. The shoots elongated on the media with GA$_3$ (1 ${\mu}{\textrm}{m}$). Elongated plantlets rooted with MS media containing IBA (9 ${\mu}{\textrm}{m}$).
Palanivel Ganesan,Soottawat Benjakul,Badlishah Sham Baharin 한국축산식품학회 2014 한국축산식품학회지 Vol.34 No.4
Changes in Maillard reaction of pidan white were monitored with A294,fluorescence intensity, and browning intensity dur-ing pickling in the absence and presence of Chinese black tea extract (Camellia sinensis) at levels of 2% and 5% togetherwith 0.2% ZnCl2 or 0.2% CaCl2 up to 3 wk, followed by ageing for another 3 wk. Browning intensity and A294 of pidan whiteincreased with increasing pickling/ageing, while fluorescence intensity decreased during ageing (p<0.05), irrespective oftreatments. At wk 6, pidan white treated with 0.2% ZnCl2 and 0.2% CaCl2 showed slightly higher browning intensity, fluo-rescence intensity and A294 than those treated with divalents together with Chinese black tea (p<0.05). Free amino group andsugar contents showed continuous decrease during pickling and ageing irrespective of tea and cations used. However, pidantreated without Chinese black tea extract showed significantly lower free amino group and sugar during the ageing of 6 wk(p<0.05). Thus, Chinese black tea extract had an inhibitory effect on the Maillard reaction during ageing of pidan white.
Effect of Different Cations on Pidan Composition and Flavor in Comparison to the Fresh Duck Egg
Palanivel Ganasen,Soottawat Benjakul,Kishimura Hideki 한국축산식품학회 2013 한국축산식품학회지 Vol.33 No.2
The effects of different cations on its composition and flavor characteristics of pidan white and yolk produced with duck egg in comparison to its fresh egg were investigated. Mineral content such as calcium, magnesium, sodium and potassium were significantly increased in pidan yolk irrespective of its cations in pickle solution in comparison to the fresh yolk (P<0.05). It confirmed the migration of minerals from the pickling solution to the egg. However, calcium and magnesium was found lower in 0.2% PbO2treated pidan. Less pidan flavor compounds were generated in pidan white produced with the aid of 0.2% PbO2. It confirmed that binding of lead prevent the maillard reaction in the pidan treated with PbO2. Ben-zaldehyde, ketones, alcohol and acid found in the pidan white treated with 0.2% ZnCl2reveals that volatiles are generated most likely from maillard reaction. However, pidan yolk of both 0.2% PbO2 and 0.2% ZnCl2 showed higher generation of volatiles more likely from yolk lipids. Butanal, pentanal, hexanal, and heptanal are of those aldehydes found in 0.2% ZnCl2treated pidan yolk whereas hexanal is the only aldehyde detected in 0.2% PbO2 treated pidan yolk. Thus, cations in the pick-ling solution affect the flavor characteristics of pidan white and yolk.
Palanivel Velmurugan,명현,Muthusamy Govarthanan,이영주,서상기,조광민,Nanh Lovanh,오병택 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.3
A total of five bacterial strains were isolated from earthworm, Eisenia fetida and examined for bacterial cellulose (BC) production in Hestrin–Schramm medium (HS). Among the five strains tested, CBNU-EW3 exhibited excellent BC production and was identified as Leifsonia sp. by 16S rDNA sequence analysis. BC production by Leifsonia sp. CBNU-EW3 was optimum at pH 5, 30°C, and with glucose and yeast extract as carbon and nitrogen sources, respectively, according to 15 day-long experiments. (XRD) analysis of the dried pellicle indicated that the BC was partially crystalline type I. Fourier transform infrared spectroscopy (FT-IR) analysis showed that the obtained pellicle contained the same functional groups as typical BC. Field emission scanning electron microscopy (FESEM) images showed that the BC micro-fibril matrix consisted of a flat surface with large pore size and cellulose aggregation.
Palanivel Velmurugan,Ravichandran Visnu Kumar,Ravichandran Visnu Kumar,Ravi Arumugam Veera 한국탄소학회 2022 Carbon Letters Vol.32 No.1
An extract of fresh guava leaves (Psidium guajava) was used as a green carbon precursor to fabricate blue fluorescent carbon quantum dots (GCQDs) by hydrothermal process. The GCQDs show bright blue fluorescence emission under UV light with an excitation wavelength of 350 nm and emission at 450 nm. The physical structure of GCQDs was characterized by Fourier-transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction (XRD), High-resolution transmission electron microscope (HR-TEM) and atomic force microscopy (AFM). GCQDs 80 µg inhibited the growth of waterborne pathogens Escherichia coli and Salmonella typhi. We also investigated the catalytic activity of the GCQDs on the removal of two azo dyes, namely Congo red and bromophenol blue, with and without NaBH4. The GCQDs showed an excellent reduction of color intensity of both dyes without NaBH4 within 30 min of treatment.
Palanivel, S.,Parvathi, S.,Jayabalan, N. 한국식물학회 2002 Journal of Plant Biology Vol.45 No.1
We evaluated the efficiency of callus induction and plantlet regeneration from mature cotyledonary segments of groundnut cultivars VRI-2 and VRI-3. Callus cultures were induced from mature tissues using NAA and IAA in combination with KIN or BAP. Maximum induction was recorded with 3.0㎎/L IAA and 1.0㎎/L BAP. However, green, compact, and nodular calli were obtained in 2.5㎎/L of IAA or NAA combined with 1.0㎎/L of either BAP or KIN. Fresh and dry weights were highly influenced by auxin concentration. Compact and nodular call! were then transferred to shoot induction media. The highest mean number of shoots was observed in 3.0㎎/L BAP plus 0.5㎎/L IAA. Finally, the resulting plantlets were rooted with IBA and NAA.
( Palanivel Velmurugan ),심재홍,오병택,조민 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
Due to the mining, industrial and agricultural activities, nitrate and phosphate are largely released to aquatic systems and also hazardous to human health. To protect the environment, it is sensible to have them removed from waters. Hence, this study focus on removal of nitrate and phosphate in water using fabricated nanocomposite absorbent by green chemistry approach. FTIR spectra, HR-TEM, elemental mapping and XRD pattern revels that 160 °C for 24 h of hydrothermal treatment is effective to obtain well crystalline with RGO coated Fe doped ZnO nanocomposite crystals. With this obtained nanocomposite adsorbent nitrate and phosphate will be removed effectively. <sup>**</sup>This work was supported by the Korean National Research Foundation (Nano-Material Fundamental Technology Development, 2016M3A 7B4909370) and Korea Ministry of Environment as Advanced Technology Program for Environmental Industry (Project no. 2014000140003).
( Palanivel Velmurugan ),조민,오병택 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
A green, eco-friendly approach for the synthesis of zinc oxide nanoparticles using Prunus x yedoensis leaf extract as reducing agent. Initial verification of ZnO NPs production was done by visual observation and measuring surface plasmon spectra at 436 nm. The synthesized ZnO NPs was characterized by HR-TEM, XRD, EDS, FTIR and zeta potential. The catalytic potential of Prunus x yedoensis leaf extract, zinc ion, synthesized ZnO NPs, commercial grade ZnO NPs and a Prunus x yedoensis leaf extract and ZnO NPs immobilized on sodium alginate hydrogel beads (SA HGB) were analyzed. The ability of these immobilized materials to remove methylene blue was investigated. Commercial grade ZnO NPs immobilized with SA HGB 0.5 g/20 mL were observed to have good catalytic activity followed by a mixture of synthesized ZnO NPs immobilized with SA HGB and Prunus x yedoensis leaf extract immobilized with SA HGB at 1.0 g/20 mL.
Velmurugan, Palanivel,Shim, Jaehong,Seo, Sang-Ki,Oh, Byung-Taek THE KOREAN FIBER SOCIETY 2016 FIBERS AND POLYMERS Vol. No.
This study evaluated the extraction of two colors of dye (yellow and brown) from Coreopsis tinctoria flower petals using ultrasound and the dyeing of leather with the extracted dyes as a source of nontoxic and eco-friendly dye. The results showed an increase in the dye extraction values with increasing time at 100 W ultrasonic power at <TEX>$80^{\circ}C$</TEX> for 1 h. Leather dyeing was optimized with the aid of ultrasound and magnetic stirring. The optimum leather dyeing conditions, with respect to the dye uptake, dye penetration and intensity of the color, were determined to be 12 % dye concentration, 100 W power, 1,000 rpm, and pH 7.0 for 60 min at <TEX>$80^{\circ}C$</TEX>. It was shown that sonication improves dye exhaustion from a 90 % to 60 % rating for 1 h of dyeing time. The dyed leather was assessed by reflectance measurements and compared with visual assessment data. The fastness properties of dyed leather samples showed good fastness against washing, light, and dry and wet rubbing. The strength properties were not significantly altered and the bulk properties, such as softness, were found to be improved by the use of Coreopsis tinctoria yellow and brown dyes using an ultrasonic and magnetic stirring dyeing process.