- M. Ahmedullah
- M. Sanjappa
- A. A. Mao
- R. C. Srivastava
- P. Kumari
- P. Singh
- S. A. Elankurisil
- S. Rajagopal
- V. Sivachidambaranathan
- A. Kalirasu
- Chandani Gupta
- Vartika Jain
- S. K. Jain
- Ashutosh Kumar Verma
- Monika Mishra
- Liza Mallick
- Kumar Avinash Bharati
- Harish Singh
- Paramjit Singh
- Manohar Pathak
- Asutosh Kumar Verma
- Debasmita Dutta Pramanick
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Dash, S. S.
- Distribution of Some Plants in the National Capital Territory of Delhi
Authors
Source
Indian Forester, Vol 138, No 5 (2012), Pagination: 403-406Abstract
The present paper records the new distribution of seven plants that were not hitherto recorded/collected from the region of National capital Territory.Keywords
New Records, NCT Region, Floristic Study, Description and Characterization- Floristic Composition of Early Recovery Vegetation of Traditional Shifting Cultivated Areas of Kurung-Kumey District of Arunachal Pradesh
Authors
Source
Indian Forester, Vol 138, No 9 (2012), Pagination: 767-775Abstract
Shifting cultivation is a major form of agricultural practice in Kurungkumey district of Arunachal Pradesh, India. Conventional agricultural practices are virtually absent in the district as terrain is mountainous. The present paper deals with the floristic composition of the early recovering plants in four shifting cultivated areas of Kurung-kumey district. Four demarcated plots each in Sangram, Palin, Nyapin and Sarlee circle was considered for the floristic inventory. Three different community functional groups viz. tree, shrub and ground vegetation (herb) were considered. The study resulted in documentation of total 216 species belonging 64 families and 58 genera flowering plants in the secondary succession area. The number of species encountered in each plot was 155, 126,148 and 150 respectively. Results indicated that only a few families viz, Poaceae, Asteraceae and Rubiaceae were dominated in the early recovery vegetation of shifting cultivation. Also the occurrences of deciduous species are in high percentagein the early recovery community as compared to the natural secondary forests of the region.Keywords
Floristic Composition, Early Recovery Vegetation, Shifting Cultivation, Arunachal Pradesh- Useful Plants of Kabi Sacred Grove, Sikkim
Authors
1 Botanic Garden of Indian Republic, Botanical Survey of India, Noida 201 303, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 49, No 1-4 (2007), Pagination: 79-88Abstract
The paper provides the vegetation account of the Kabi Sacred Grove of North Sikkim and the detail infomation regarding utilization of the plants. The different medicinal plants used in traditional treatments of different ailments by the local inhabitants of the area are appended in the tabular form.- Two New Species and a New Distributional Record of Archidendron F. Muell. (Leguminosae:Mimosoideae) from India
Authors
1 Botanical Survey of India, Arunachal Pradesh Regional Centre, Itanagar 791 111, IN
2 Botanic Garden Herbarium (UASB) & University of Agricultural Sciences, GKVK, Bengaluru 560 064, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 53 (2011), Pagination: 7-16Abstract
Three species of the genus Archidendron F. Muell., two of them (Archidendron nielsenianum and A. arunachalense) new to science and the other [A. kerrii (Gagnep.) I. C.Nielsen], a new distributional record for India are presented from Kurung Kumey district of Arunachal Pradesh. Digital images of all the described species are given for easy recognition and to facilitate their future collection and conservation.Keywords
Archidendron, Mimosoideae, New Species, India, Arunachal Pradesh.- A New Species of Codonopsis Wall. (Campanulaceae) from Arunachal Pradesh, India
Authors
1 Botanical Survey of India, Arunachal Pradesh Regional Centre, Itanagar 791 111, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 53 (2011), Pagination: 17-20Abstract
Codonopsis vadsea is described and illustrated from Vadse hills of Kurung Kumey district of Arunachal Pradesh, India.Keywords
Arunachal Pradesh, Codonopsis, Campanulaceae, New Species.- Notes on the Distribution of Some Legume Species in Arunachal Pradesh
Authors
1 Botanical Survey of India, Arunachal Pradesh, Regional Centre, Itanagar 791111, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 53 (2011), Pagination: 183-193Abstract
The present paper discusses distribution of 18 species from the family Leguminosae that shows interesting distribution pattern in Arunachal Pradesh. Acrocarpus fraxinifolius Wight & Arn., Caesalpinia decapetala (Roth) Alston, Cassia hochestetteri Ghesq., Crotalaria anagyroides Kunth, Dalbergia thomsonii Benth., Desmodium zonatum Miq., Flemingia involucrata Benth., Hylodesmum podocarpum (Candolle) H. Ohashi & R. R. Mill., recorded for the first time for the state. The occurrence of Adenanthera pavonina L., Crotalaria humifuga Graham ex Benth., Erythrina arborescence Roxb., Indigofera pseudoreticulata Grierson & D. G. Long, Derris marginata (Roxb.) Benth., Desmodium laxiflorum DC, Mucuna imbricata DC. ex Baker, Shuteria involucrata (Wall.) Wight & Arn., and Trifolium repens L., Uraria lagopodioides (L.) Desv., recorded as extended distribution from adjacent states or phytogeographic region.Keywords
New Records, Distribution, Arunachal Pradesh, Leguminosae.- Additions to the Flowering Plants of India from Arunachal Pradesh
Authors
1 Botanical Survey of India, Arunachal Pradesh Regional Centre, Itanagar, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 53 (2011), Pagination: 228-235Abstract
No Abstract.- Systematic Studies on Family Commelinaceae of Sikkim
Authors
1 Botanical Survey of India, Arunachal Pradesh Regional Centre, Senkie View, Itanagar 791 111, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 52 (2010), Pagination: 99-116Abstract
The present paper deals with the detailed taxonomic treatment of the family Commelinaceae comprising of 8 genera and 25 species in Sikkim. A key to the genera and species based on the morphological characters is also given for easy identification. Streptolirion volubile subsp. khasianum (C.B. Clarke) D.Y. Hong is reported for the first time from Sikkim.Keywords
Biogeography, Commelinaceae, Morphology, Systematics, Sikkim.- Traditional Herbal Remedies used in Sikkim, India
Authors
1 Botanical Survey of India, Arunachal Pradesh Regional Centre, Itanagar 791111, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 51 (2009), Pagination: 123-156Abstract
The paper deals with the 225 different uses of 167 plant species belonging to 84 families for the treatment of 27 major ailments among ten rural communities of Sikkim. All the gathered information were based on the herbal practices of selective representative villages of Sikkim. During the collection of information, traditional uses pattern, parts used for, mode of preparation and administration of doses were also discussed. Out of the total uses of plants, herbs constitute c. 50% , trees by 25% and shrubs by 17%, while climbers constitutes the lowest habitat category (8%). Most herbal medicines were used in the form of paste of the plant or of a particular part. The other modes of uses were decoction, powder or inhalations etc. Remedies for common ailments were known to all households, while medicines or doses for critical ailments were taken as per the advice of the herbal healers or Jakris. The present study also indicated that the region harbors a high diversity of medicinal plants. A list of 167 plant species along with their Local name, habit, flowering and fruiting period, plant parts used, medicinal properties and the mode of use are also enumerated.Keywords
Herbal Remedy, Medicinal Plants, Traditional Knowledge.- Notes on Recollection of Three less Known Endemic Plants of Arunachal Pradesh
Authors
1 Botanical Survey of India, Arunachal Pradesh Regional Centre, Itanagar 791 111, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 51 (2009), Pagination: 213-216Abstract
No Abstract.- Notes on Flowering in Schizostachyum arunachalensis H. B. Naithani (Poaceae:Bambusoideae)
Authors
1 Botanical Survey of India, Arunachal Pradesh Regional Centre, Itanagar 791 111, IN
2 Botanical Survey of India, Central National Herbarium, Howrah 713 101, IN
3 Botanical Survey of India,CGO Complex, Salt Lake City, Kolkata 700 064, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 51 (2009), Pagination: 241-244Abstract
During present study Schizostachyum arunachalensis was found flowering and fruiting in the wild on the hill slopes in Kane Wildlife Sanctuary of West Siang district (Arunachal Pradesh). A good population was observed near Magee village which is about 10 km from Elephant Camp. This bamboo can be easily distinguished by long internodes, larger leaves and peculiar leaf sheaths. A supplemented taxonomic description of this bamboo is provided. In light of flowering and fruiting material available now, its taxonomic placement in the new genus Stapletonia has been suggested, a new combination has been proposed, and coloured photographs have been provided to facilitate identification.- Compare the Performance of Controllers in Isolated and Non-Isolated DC to DC Converters for DC Motor
Authors
1 Sathyabama University, Chennai, IN
2 SRM University, Chennai, IN
Source
Software Engineering, Vol 3, No 9 (2011), Pagination: 396-401Abstract
The paper presents a comparison of closed loop control of Isolated and non-Isolated dc-dc converter is reduce size, space weight, there is no Isolation winding, less cost simple design to maintain a constant voltage is required for special drives. It is utilize in uninterruptable power supplies, battery charging and discharging in buck converter wide range of speed, travel, power space, aircraft and automobile. Neural controller in non-isolated is superior as compared to the fuzzy controller is superior as compared to the fuzzy controller in isolated dc-dc converter to compare the Isolated dc-dc converter. The operating principle, theoretical analysis and design guideline provided in this paper. The simulation and the experimental verification is presented. The constant voltage and reduce the Losses. To increase the Efficiency from86% to 92% with constant Frequency.Keywords
Soft Switching, Microcontrollers, Bidirectional Dc-Dc Convertors, Non-Isolated DC-DC, Converters, Fuzzy Logic Controller, Neural Network Controller.- Simulation Results of Four Level Convertor for High Speed Switched Reluctance Motor
Authors
1 Sathya Bama University, IN
Source
Programmable Device Circuits and Systems, Vol 3, No 10 (2011), Pagination: 550-553Abstract
The aim of this paper is to present that four level converters are most suitable for excitation of high speed switched reluctance motor drives. Switched reluctance motor drives are preferred for high speed industrial applications because they offer a wide speed range and that their are torque/inertia ratio is very high . Conventional asymmetric convertors are not suitable for excitation of high speed switched reluctance motor drives because the excitation time is very short. While exciting switched reluctance motors the excitation current in a phase should be switched on at the time inductance begins to rise and it must build up sufficiently during the raising period of the inductance to produce required positive torque output. Further the excitation current must be reduced to zero before the inductance begins to fall. During its fall time of excitation current it should not extend to the decreasing period of inductance to avoid production of negative torque. Four level convertor is recommended to achieve the above mentioned facts in excitation of high speed switched reluctance motor drives. The Four level convertor has an additional capacitor and an active power switch. The high voltage in the charged capacitor is applied to the phase winding in the fast excitation mode and the phase current gets rapidly decreased without extending to the negative region during demagnetisation mode. The simulation results of such a four level convertor used for operation of high speed switched reluctance motor drives show that current stress is less than the voltage stress during excitation conditions.- Closed Loop Controlled Half Bridge Series Resonant PFC DC to DC Converter
Authors
1 Sathyabama University, Chennai, IN
2 EEE Department, SRM University, Chennai, IN
Source
Programmable Device Circuits and Systems, Vol 3, No 7 (2011), Pagination: 336-340Abstract
This paper presents the modeling and simulation of closed loop controlled Half Bridge Series Resonant Power Factor Correction (PFC) DC – DC converter with high frequency transformer isolation using Matlab Simulink. Half bridge converters are well suitable for low input voltage and high current applications. High power density and high efficiency are the major driving force for this application. The operation at higher frequencies considerably reduces the size of passive components, such as transformers and filters, however switching losses have been an obstacle for high frequency operation. To reduce switching losses and allow high frequency operation, resonant techniques have been developed. This technique reduces distortion and results in almost sinusoidal output. The switching processes are softly commutated. Therefore the switching losses and noises are reduced. The open loop and closed loop models for DC – DC Half Bridge Series Resonant PFC converter have been developed and the MATLAB simulation results are presented.
Keywords
Resonant Half-Bridge to Dc-Dc High Frequency, Low Switching Loss Converters.- Practical Implementation of an Embedded Controlled High Gain Interleaved Boost Converter for Solar Installation System
Authors
1 Department of Electrical and Electronics Engineering, Sathyabama University, Chennai, IN
2 Department of Electrical and Electronics Engineering, SRM University, Chennai, IN
Source
Artificial Intelligent Systems and Machine Learning, Vol 4, No 4 (2012), Pagination: 253-259Abstract
In recent years, solar power generation has gathered much attention in the field of generation and research. The aim of this work is to develop a simulink model for closed loop controlled interleaved boost converter and test it. This paper proposes a practical implementation of two stage interleaved boost converter for solar installation system. The topology study of open loop and closed loop systems with step-up conversion and step increase in input voltage are proposed. The modified two-stage interleaved DC to DC boost converter is modeled and simulated using matlab/Simulink and it is implemented using embedded controller. The simulation and experimental results of this system are presented and compared. The performance of the converter is compared with the conventional boost converter. This comparison reveals that the present converter system has the advantages of high efficiency and reduced switching stress.Keywords
Closed Loop, Embedded Control, Interleaved Boost Converter, Matlab, Simulation, Solar.- Performance of Non-Isolated Steep Conversion Ratio in Neural Controller
Authors
1 Sathyabama University, Chennai, IN
2 EEE Department, SRM University, Chennai, IN
Source
Artificial Intelligent Systems and Machine Learning, Vol 3, No 11 (2011), Pagination: 720-723Abstract
This paper presents a new bidirectional dc-dc PWM converter with a steep voltage conversion ratio. The converter makes use of coupled inductors to step up small dc voltage to large ones or to step down large dc voltages to small ones. All switches operate with zero-voltages witching due to a very simple auxiliary circuit that contains a single active switch and a few passive elements. This converter operation is explained in detail and analyzed, and a systematic design procedure of Neural Controller is derived. The feasibility of the converter is confirmed with results obtained from the MATLAB 7.3 VERSION. The efficiency is achieved of 94% Closed loop response is very good dynamic Response.Keywords
Bidirectional DC-DC Converter, Matlab, Neural Controller, Non-Isolated and Steep Conversion Ratio.- Rubus sengorensis (Rosaceae): A New Record to India from Arunachal Pradesh
Authors
1 Central National Herbarium, Botanical Survey of India, Howrah – 711 103, West Bengal, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 57 (2015), Pagination: 50-55Abstract
Rubus sengorensis Grierson & D. G. Long, a narrow endemic species to Bhutan is reported as a new record to India from Arunachal Pradesh. A detailed description, illustration of the habit and stipule, SEM image of pollen grain, distribution map along with scanned image of the isotype of Rubus sengorensis have been provided to facilitate its easy identification. The pollen study by SEM has been done for the first time. On the basis of pollen morphology and other characters, the species has been assigned to the subgenus Chamaebatus.Keywords
Arunachal Pradesh, New Record, Subgenus Chamaebatus.References
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- Notable Name Changes in Plants of Indian Puranas
Authors
1 Botanical Survey of India, CGO Complex, Kolkata-64, IN
2 Department of Botany, Govt. Meera Girl’s College, Udaipur-313001, Rajasthan, IN
3 28-A, Avas-Vikas Colony, Mall Avenue colony, Lucknow - 226001 (U.P.), IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 57 (2015), Pagination: 82-85Abstract
A total of 359 plants have been described in Vamana Purana, Vayu Purana, Kurma Purana, Matsya Purana, Brahmavaivartra Purana, Agni Purana and Brahma Puranas. Out of 359 botanical names attributed to them, 279 names are largely accepted even today. This paper provides the list of currently accepted botanical names or author citations of remaining 80 plants.Keywords
Agni Purana, Brahmavaivartra Purana, Kurma Purana, Matsya Purana, Nomenclature, Vamana Purana, Vayu Purana.References
- NATH, M. AND JAIN, S.K. 2015. Some medicinal plants of Indian Puranas in today’s ethnomedicinal perspective. Indian J. Hist. Sci. 50 (2):196-207.
- NATH, M., JAIN V. AND JAIN, S.K. (in Press). Non-timber plant species of Indian Purana’s in the life of rural southern Assam. MFP News.2015
- SENSARMA, P. 1989. Plants in the Indian Puranas – An Ethnobotanical investigation. Naya prakash, Calcutta.
- SIKARWAR, R.L.S., CHANDRA, V. AND JAIN, S.K. (in Press). Present economic relevance of some non timber species mentioned in Indian Purana’s. Int J Forest Usufructs Manag 2015.
- Database on Chromosome Counts of Plants of Acharya Jagadish Chandra Bose Indian Botanic Garden, Howrah, India
Authors
1 Central Botanical Laboratory, Botanical Survey of India, AJC Bose Indian Botanic Garden, Howrah-711 103, IN
2 Central National Herbarium, Botanical Survey of India, AJC Bose Indian Botanic Garden, Howrah-711 103, IN
3 Botanical Survey of India, C.G.O.Complex, 3rd MSO Building Block-F, 5th & 6th Floor, DF Block Sector-1, Salt Lake City, Kolkata - 700 064, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 58 (2016), Pagination: 57-78Abstract
The chromosome numbers of the extant and extinct plants play a significant role in determining the phylogenetic interrelation of different groups. In the post Angiosperm Phylogeny Group system of plant classification era more and more attentions were given in molecular based studies, evidences on plant breeding, intraspecific variation, origin and taxonomic relationship studies of diverse plant group. Exhaustive online database on chromosomal counts have already been developed from various sources. Still, there are many species and genera of plants for which no chromosome count is known. There are countries from which very few counts have been reported. Therefore, there is still a great deal of traditional cytotaxonomic work to be done. The present communication presents 519 records belonging to 343 species, 265 genera and 85 families of Angiosperms of Acharya Jagadish Chandra Bose Indian Botanic Garden, Howrah. The paper also reports 60 plant species with new chromosome counts, which were hitherto not reported either in the Chromosome Counts Database (CCDB) or Chromosome Atlas of Flowering Plants of the Indian Subcontinent.Keywords
Chromosome Number, Chromosome Count, Cytology, Plant Taxa.References
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- Trend in Research Publications of Botanical Survey of India during 2001-2015
Authors
1 CSIR-National Institute of Science Communication and Information Resources, New Delhi - 110 012, IN
2 Botanical Survey of India, Central Regional Centre, Allahabad - 211 002, IN
3 Botanical Survey of India, Salt lake City, Kolkata - 700 064, IN
4 Central National Herbarium, Botanical Survey of India, Howrah - 711 103, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 58 (2016), Pagination: 126-129Abstract
The present communication measures the growth of research publication of Botanical Survey of India during the period 2001-2015 using bibliometric tools. The data were drawn from the Scopus database and analyzed, which revealed that a total of 613 papers were published during the said period. This analysis also shows that, there is an incremental growth in the number of publications from 7 papers in 2001 to 95 papers in 2015 which is significantly thirteen-fold progress.Keywords
Bibliometric, Publication, Mapping, Taxonomy, Botanical Survey of India.References
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- Compendium of Indian Folk Medicine and Ethnobotany (1991-2015)
Authors
1 Botanical Survey of India, Kolkata, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 58 (2016), Pagination: 179-179Abstract
The present book Compendium of Indian Folk Medicine and Ethnobotany (1991-2015) by Vartika Jain&S.K. Jain records ethno-botanical information on 4663 plant species used by different traditional communities/societies of India. This includes 4375 angiosperms from 1607 genera and 288 species from 138 genera of other groups (17 Gymnosperms, 64 Pteridophytes, 2 Bryophytes, 42 Fungi, 2 Algae and 11 lichens). This book also provides an index of over 21000 local names used by different tribal societies in different parts of our country, which will definitely help many researchers to identify a plant species. Abbreviations have also been provided for listing for the name of the different diseases. The book is a much awaited update of Dr. S.K. Jain's most referred "Dictionary of Indian Folk Medicine and Ethnobotany" published in 1991.- Prof. Holenarasipur Yoganarasimhan Mohan Ram
Authors
1 Botanical Survey of India, Headquarter, Kolkata-700064, IN