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Rajendran, A.

• Some Rare/Endemic Medicinal Orchids of Velliangiri Hills of Southern Western Ghats, Tamil Nadu, India

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Authors

V. Aravindhan , K. Sathiyadas , A. Rajendran , Binu Thomas

Source

Indian Forester, Vol 137, No 9 (2011), Pagination: 1077-1081

Abstract

The present paper highlights the medico-potentiality of 11- orchidaceous species viz., Acampe praemorsa (Roxb.) Blatt. & Mc. Cann., Bulbophyllum acutiflorum A. Rich., Bulbophyllum neilgherrense Wight., Cymbidium aloifolium (L.) Sw., Dendrobium herbaceum Lindl., Geodorum densiflorum (Lam.) Schltr., Habenaria plataginea Lindl., Habenaria roxburghii Nicolson, Malaxis acuminata D. Don, Oberonia wightiana Lindl. and Vanda tessellata (Roxb.) Hook. f. ex D. Don, collected from the Velliangiri hills, Southern Western Ghats of Tamil Nadu, India. The correct botanical name, brief description, distribution with phenological data and medicinal uses are provided for each species.

Keywords

Rare/Endemic Orchids, Ethnomedicine, Velliangiri Hills, Tamil Nadu

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• Design and Manufacturing of Nano Catalytic Converter for Pollution Control in Automobiles for Green Environment

Abstract Views :408  |  PDF Views:88

Authors

A. Durairajan ¹, T. Kavitha ², A. Rajendran ³, L. A. Kumaraswamidhas ⁴

Affiliations
1 Department of Mechanical Engineering, K.S.R. College of Engineering, Tiruchengode, Namakkal (DT), Tamil Nadu, IN
2 Department of Physics, Nehru Memorial College, Puthanampatti, Tamil Nadu, IN
3 3Department of Physics, Nehru Memorial College, Puthanampatti, Tamil Nadu, IN
4 Department of Mechanical Engineering, National Institute of Technology, Trichy, Tamil Nadu, IN

Source

Indian Journal of Innovations and Developments, Vol 1, No 5 (2012), Pagination: 314-319

Abstract

Automobile plays an important role in contribution to the pollution. Air pollution is predominately emitted through the exhaust of motor vehicles and the combustion of fossil fuels. Pollution control is the very important role for future generation to control toxic emissions like CO, NO_X and HC. The objective of the work is to reduce the emissions from the automobiles through design and manufacturing of nano catalytic converter by replacing the existing expensive metals such as platinum, cerium oxide. Nano materials like nano rhodium and nano palladium were obtained by using chemical vapour deposition (CVD) technique. The obtained nano powder was deposited in the honey comb structure by using spin coating method. Further the characterization of nano palladium and nano rhodium powder is made through scanning electron microscope, X-ray diffraction, transmission electron microscope. By using the nano catalytic converter the pollution is reduced.

Keywords

Nano catalytic converter, Nano materials, Automobile pollution, Transmission electron microscope

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References

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• Genslak SL (1972) Evaluation of Gaseous Fuels for Automobiles. SAE paper, No.720125.
• Hizbullah K, Kureti S and Weisweiler W (2004) Potassium promoted iron oxide catalysts for simultaneous catalytic removal of nitrogen oxides and soot from diesel exhaust gas. Catal. Today, 93-95, 839-843.
• Joseph Y, Ketteler G, kuhrs C, Ranke W, Weiss W and Schlo R (2005) On the preparation and composition of potassium promoted iron oxide model catalyst films. Phys. Chem. Chem. Phys., 2001, 3, 4141-4153.
• Ketteler G, Ranke W and Schl R (2002) Potassium- Promoted Iron Oxide Model Catalyst Filmsfor the Dehydrogenation of ethylbenzene: An Example for Complex Model Systems. J. Catal., 212(1), 104-111.
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• Kureti S, Weisweiler W, Hizbullah K (2003) Simultaneous conversion of nitrogen oxides and
• Latusek JP and Burrrahm RW (1993) Conversion of Two Small Utility Engines to LPG Fuel. SAE paper, No.932447.
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• Ethnobotanical Survey of Medicinal Plants Used by Malayali Tribes in Yercaud Hills of Eastern Ghats, India

Abstract Views :1839  |  PDF Views:1007

Authors

K. Senthilkumar ¹, V. Aravindhan ¹, A. Rajendran ¹

Affiliations
1 Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore – 641 046 Tamil Nadu, India, IN

Source

Journal of Natural Remedies, Vol 13, No 2 (2013), Pagination: 118-132

Abstract

Medicinal plants have played an important role in treating and preventing a variety of diseases throughout the world. India is one of the most medico-culturally diverse countries in the world where the medicinal plant sector is part of a time honoured tradition that is respected even today. The present study was initiated with an aim to identify traditional healers who are practicing herbal medicine among the <I>Malayali</I> tribes in Yercaud hills of Eastern Ghats, India and to document their indigenous knowledge on the utilization of medicinal plants particularly most common ethnomedicinal plants. The ethnobotanical information was collected through interviews among local traditional healers in the study area. A total of 90 species of plants distributed in 80 genera belonging to 44 families were identified as commonly used ethnomedicinal plants in the study. As a result, the present study revealed that the information documented regarding the therapeutic uses will provide basic data for further studies mainly focused on conservation, cultivation and economic welfare of the tribal population.

Keywords

Herbal medicine, Ethnobotany, Malayali tribes, Yercaud Hills, Tamil Nadu

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References

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• Study on the Anti-inflammatory Effects of Leaf Extract of Heterostemma tanjorense Wight and Arn.

Abstract Views :563  |  PDF Views:0

Authors

S. Thevasundari ¹, A. Rajendran ²

Affiliations
1 Department of Environmental and Herbal Science, Tamil University, Thanjavur, Tamil Nadu, IN
2 Department of Botany, Bharathiyar University, Coimbatore, Tamil Nadu, IN

Source

Research Journal of Pharmacognosy and Phytochemistry, Vol 5, No 1 (2013), Pagination: 34-36

Abstract

Anti-inflammatory drugs presently available for the treatment of various inflammatory disorders have diverse and undesirable side effects. In recent years; active principles of varied chemical structures have been isolated from plants possessing anti-inflammatory activity. The main objective of the present investigation is to evaluate the anti-inflammatory property of chloroform, distilled water, ethanol and ethyl acetate leaf extract of Heterostemma tanjorense Wight and Arn. in albino rates using the Carrageenan induced left hind paw edema. In the study it was observed that the chloroform, distilled water, ethanol and ethyl acetate extracts were significantly inhibit paw edema induced by carrageenan in rats. The ethanolic extract showed a promising anti-inflammatory property when compared with the chloroform, distilled water and ethyl acetate extract.

Keywords

Anti-inflammatory, Heterostemma tanjorense, Carrageenan, Paw Edema.

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References

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• Cissus Quadrangularis I/i> L. (vitaceae): Epiphytic Habitat?

Abstract Views :192  |  PDF Views:0

Authors

M. Parthipan ¹, A. Rajendran ¹

Affiliations
1 Taxonomic and Floristics laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore- 641 046. Tamil Nadu, India, IN

Source

Indian Forester, Vol 140, No 11 (2014), Pagination: 1148-1150

Abstract

No abstract

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• Eugenia Singampattiana Beddome (Myrtaceae) - its Status after Rediscovery from the Tirunelveli Hills, Tamil Nadu

Abstract Views :100  |  PDF Views:76

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 31, No 1-4 (1989), Pagination: 122-125

Abstract

Eugmia singampattiana Beddome, an endemic species of the Tirunelveli-Travancore Hills on the Western Ghats has been rediscovered after Beddome in the 1860s-1870s. Mature fruits and seeds are described for the first time. It is reportedly an endangered or possibly extinct species. Its present status is discussed and conservation measures are suggested.

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• Does Premna Procumbens' Moon (Verbenaceae) Occur in Southern India?

Abstract Views :100  |  PDF Views:46

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 32, No 1-4 (1990), Pagination: 129-134

Abstract

The reported occurrence of Premna procumbens Moon in Southern India is based on the mistaken identity of P. wightiana Schauer. P. procumbens Moon is found to be endemic to Sri Lanka (Ceylon). P. wightiana is endemic to the. Southern Western Ghats and seems to be rare needing further surveys to establish the exact status of this species.

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• Premna Nana Collett & Hemsley-an Addition to the Verbenaceae of India

Abstract Views :77  |  PDF Views:45

Authors

A. Rajendran ¹, P. Daniel ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 32, No 1-4 (1990), Pagination: 172-174

Abstract

No Abstract.

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• The Occurrence of Premna Lucldula Miq. (Verbenaceae) in India

Abstract Views :79  |  PDF Views:47

Authors

A. Rajendran ¹, P. Daniel ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 32, No 1-4 (1990), Pagination: 191-194

Abstract

No Abstract.

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• A Note on the Species of Vitex L. (Verbenaceae) Endemic to the Andamans

Abstract Views :144  |  PDF Views:44

Authors

A. Rajendran ¹, P. Daniel ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 35, No 1-4 (1993), Pagination: 11-15

Abstract

Vitex diversifolia Kurz ex C.B. Clarke and V. wimberleyi Kurz are endemic to the Andaman Islands. They are rare and confined to only certain localities on these Islands. Detailed descriptions and illustrations are provided. Their present status is discussed. Both the names are typified.

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• Premna cordifolia (Verbenaceae) - A Variously Misapplied Name

Abstract Views :156  |  PDF Views:66

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 37, No 1-4 (1995), Pagination: 92-99

Abstract

Premna cordifolia Roxb., does not occur in India. It is found that either this species was misunderstood or the name P. cordifolia misapplied to P. corymbosa Rottler in old literature; or to P. rubens (C.B. Clarke) Ridley in later literature. The species involved are keyed out and their nomenclature is set right. P. rubens is added to the Indian Verbenaceae and the name lectotypified.

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• Lippia alba (Miller) N.E. Br. Distinct from Lippia javanica (Burm.F.) Sprengel (Verbenaceae)

Abstract Views :141  |  PDF Views:69

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 38, No 1-4 (1996), Pagination: 19-24

Abstract

Lippia alba (Miller) N.E. Br. is a distinct species and wide-spread in India. Lippia javanica (Burm. f.) Sprengel has established in very few places only and the name L. javanica is found misapplied to L. alba (Miller) N.E. Br. It is established that Lantana malabarica Hayek and Lippia unica Ramakr., and L. indica Mold., all described from southern India, are synonyms of L. alba and L. javanica respectively.

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• Nomenclatural Changes and Rectifications in the Indian Verbenaceae

Abstract Views :161  |  PDF Views:48

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 38, No 1-4 (1996), Pagination: 43-45

Abstract

Premna coriacea C.B. Clarke var. villosa (C.B. Clarke) Rajendran & Daniel, stat. & comb. nov. and Premna serratifolia L. var. minor (Ridley) Rajendran & Daniel, comb, nov., are proposed Clerodendrum farinosum (Roxb.) Steudel and Lantana veronicifolia Hayek supersede Clerodendrum venosum Wallich ex C.B. Clarke and Lantana wightiana Wallich ex Gamble respectively. Lippia indica Mold., is a synonym of Lippia javanica (Burm.f.) Sprengel whereas Lantana malabarica Hayek and Lippia unica Ramakr., are synonyms of Lippia alba (Miller) N.E. Br.

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• The Correct Ascription of the Combination Stachytarpheta cayennensis (Verbenaceae)

Abstract Views :134  |  PDF Views:50

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 37, No 1-4 (1995), Pagination: 132-133

Abstract

No Abstract.

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• Critical Comments on Clerodendrum farinosum (Roxb.) Wallich Ex Steudel (Verbenaceae)

Abstract Views :122  |  PDF Views:47

Authors

P. Daniel ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 35, No 1-4 (1993), Pagination: 110-113

Abstract

No Abstract.

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• The Status and Affinities of Clerodendrum macrostachyum Turcz. (Verbenaceae)

Abstract Views :119  |  PDF Views:46

Authors

A. Rajendran ¹, P. Daniel ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 35, No 1-4 (1993), Pagination: 121-123

Abstract

No Abstract.

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• Memecylon rivulare Bremer (Melastomataceae) an Addition to the Indian Flora

Abstract Views :96  |  PDF Views:39

Authors

M. B. Viswanathan ¹, A. Rajendran ¹

Affiliations
1 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 35, No 1-4 (1993), Pagination: 124-126

Abstract

No Abstract.

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• Clerodendrum andamanense (Mold.) Rajendran & Daniel Stat. & Comb. Nov. (Verbenaceae) - A Rare Species from the Andamans

Abstract Views :112  |  PDF Views:48

Authors

A. Rajendran ¹, P. Daniel ²

Affiliations
1 National Botanical Research Institute, Lucknow-226001, IN
2 Botanical Survey of India, Coimbatore, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 38, No 1-4 (1996), Pagination: 133-135

Abstract

No Abstract.

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• Segmentation of Brain Tumor on MRI Images Using Modified GVF Snake Model

Abstract Views :64  |  PDF Views:3

Authors

A. Rajendran ¹, R. Dhanasekaran ²

Affiliations
1 RVS College of Engineering & Technology, ECE Department, Coimbatore, IN
2 Syed Ammal Engineering College, Ramanathpuram, Coimbatore, IN

Source

Digital Image Processing, Vol 3, No 16 (2011), Pagination: 1076-1078

Abstract

Medical image segmentation is the most important process and research focus in the medical image processing field. Snakes, or active contours, are used extensively in computer vision and image processing applications, particularly to locate object boundaries. In this paper the gradient vector flow (GVF) snake model is modified with thinning canny edge detection is used for brain tumor segmentation. The thinning canny operator is used to calculate the edge map gradient for GVF snake model. Then the GVF deforms with initial contour. Simulation results show that the GVF model with thinning canny operator can extract the boundary of brain tumor accurately. This method can overcome the problem that traditional snake cannot have efficient converge to the weak boundary.

Keywords

GVF Snake, Segmentation, Brain Tumor, Deformable Model.

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• A Survey on Image Segmentation Techniques for Medical Images

Abstract Views :79  |  PDF Views:3

Authors

A. Rajendran ¹, R. Dhanasekaran ²

Affiliations
1 RVS College of Engg. &Technology, ECE Department, Coimbatore, IN
2 Department of ECE, Nehru Institute of Engineering and Technology, Coimbatore, IN

Source

Digital Image Processing, Vol 1, No 1 (2009), Pagination: 21-26

Abstract

Image segmentation is one of the primary steps in image analysis for object identification. The main aim is to recognise homogeneous regions within an image as distinct and belonging to different objects Image segmentation plays a crucial role in many medical imaging applications by automating or facilitating the delineation of anatomical structures and other regions of interest. We present herein a critical appraisal of the current status of semi-automated and automated methods for the segmentation of anatomical medical images. We conclude with a discussion on the future of image segmentation methods in biomedical research.

Keywords

Medical Imaging, Classification, Deformable Models, Magnetic Resonance Imaging.

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• Recital Scrutiny of Multimodal Biometric Based Authentication System by Diverse Fusion Method

Abstract Views :74  |  PDF Views:3

Authors

A. Shajin Nargunam ¹, R. Manju ², A. Rajendran ³

Affiliations
1 Noorul Islam University, IN
2 Department of EIE, Noorul Islam University, IN
3 Department of ECE, Sun College of Engineering and Technology, IN

Source

Biometrics and Bioinformatics, Vol 4, No 11 (2012), Pagination: 510-515

Abstract

In many real-world applications, unimodal biometric systems often face significant limitations due to sensitivity to noise, intraclass variability, data quality, nonuniversality, and other factors. Multibiometric systems seek to alleviate some of these problems by providing multiple pieces of evidence of the same identity. This paper presents an effective fusion scheme that combines information presented by multiple domain experts based on the rank-level fusion integration method. The developed multimodal biometric system possesses a number of unique qualities, starting from utilizing principal component analysis and Fisher‘s linear Discriminant methods for individual matchers (face,iris, and fingerprint) identity authentication and utilizing the novel rank-level fusion method in order to consolidate the results obtained from different biometric matchers. The results indicate that fusion of individual modalities can improve the overall performance of the biometric system, even in the presence of low quality data.

Keywords

Biometric Identification System, Neuro Fuzzy, Fisher‘s Linear Discriminant Methods (FLD), Multi Biometric System, Principal Component Analysis (PCA), Rank-Level Fusion.

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• Molecular Characterization of Coagulase Negative Nosocomial Staphylococcus sp. by RFLP Method

Abstract Views :90  |  PDF Views:0

Authors

A. Sathya ¹, A. Rajendran ², V. Sivakumari ²

Affiliations
1 Department of Microbiology, Marudupandiyar College, Thanjavur (T.N.), IN
2 Department of Environmental and Herbal Sciences, Tamil University, Thanjavur (T.N.), IN

Source

International Journal of Medical Sciences, Vol 2, No 2 (2010), Pagination: 129-132

Abstract

Coagulase negative nosocomial Staphylococcus spp. were collected from infected patient in and around Thanjavur. Colonies were analyzed by using morphological (staining, colony morphology and pigmentation) and biochemical (catalase, coagulase, acid production etc.) analyses. Twenty coagulase negative Staphylococcus spp. (CoNS) were identified by morphological and biochemical tests and submitted to molecular typing by plasmid DNA analysis, genomic DNA analysis, restriction endonuclease digestion pattern by using EcoR I, Hind III, and Alu I enzymes. 20 species of three different type of CoNS were identified, viz., S. epidermidis, S. saprophyticus and S. haemolyticus.

Keywords

Coagulase Negative Staphylococcus spp., Genomic DNA, Plasmid DNA.

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