Evaluation of bio efficacy of Tylophora indica leaf extracts, fractions and pure alkaloids against Helicoverpa armigera (Hubner)
Kathuria V, Ruhl S, Kaushik N, Edrada-Ebel R, Proksch P
Crude extracts, fractions and pure alkaloids from Tylophora indica (Burm. f.) Merrill were tested against Helicoverpa armigera larvae and moths. Among the extracts, ethanol extract was more effective than the hexane extract in reducing larval growth with GI50 value (concentration at which 50% reduction in larval weight obtained) of 0.031. Significant reduction in pupal weight was also observed (up to 20%).
Purohit I, Purohit P, Shekhar S
To accelerate the decarburization in the Indian power sector, concentrating solar power (CSP) needs to play an important role. CSP technologies have found significant space in the Jawaharlal Nehru National Solar Mission (JNNSM) of the Indian government in which 20,000 MW grid connected solar power projects have been targeted by 2022 with 50% capacity for CSP.
Dutt A, Mohanty P
Smart Electric Grid is an important as well as intelligent element towards the development of an energy independent and environmentally sustainable society. Although there is no universal definition for Smart Grid, it has various functionalities towards modernization of the electrical grid by using digital systems and addressing disturbances via automated prevention and various other novel ideas. But a smarter grid needs a real-time analysis of the network.
Setty H H N
In rural India, kerosene continues to be one of the important fuels for lighting purposes. More than half of Indian rural households have no access to electricity and those that are electrified still depend on kerosene because the electricity available is unreliable and has low/fluctuating voltages. Kerosene is burnt to produce a highly inefficient illumination. Most of the kerosene is imported and distributed under a subsidized rate to the people for lighting. This paper explores biofuel as an alternative that can be used for lighting as it can be easily available in rural areas.
Development and characterisation of HDPE/EPDM-g-TMEVS blends for mechanical and morphological properties for engineering applications
Divya V, Pattanshetti V, Suresh R and Bhattacharya R R N Sailaja
A novel graft copolymer of tris (2-methoxy ethoxy) vinylsilane (TMEVS) onto ethylene propylene diene terpolymer (EPDM) has been developed by grafting TMEVS using dicumyl peroxide as an initiator (EPDM-g-TMVES)in a Brabender plasticorder. Grafting of TMEVS onto EPDM has been ascertained using FTIR. Suitable interfacial compatibilizer was synthesized by grafting of HDPE with glycidyl methacrylate (HDPE-g-GMA) with benzoyl peroxide as initiator. The EPDM-grafted-TMEVS developed has been blended with different weight percentage of HDPE, EPDM-g-TMEVS and nanoclay.
Design improvements and performance testing of a biomass gasifier based electric power generation system
Raman P, Ram N K
The objective of the research work, reported in this paper is, to design and develop a down draft gasifier based power generation system of 75 KWe. A heat exchanger was designed and installed which recycles the waste heat of the hot gas, to improve the efficiency of the system. An improved ash removal system was introduced to minimize the charcoal removal rate from the reactor, to increase the gas production efficiency. A detailed analysis of the mass, energy and elemental balance is presented in the paper.
Daylighting in Schools influencing the health and productivity of children: Investigating with current British Standards
Namburu H K V and Kumar D E V S Kiran
Daylighting in school buildings has been considered as one major aspect over the past few decades. A well designed space should meet appropriate quantitative aspects like illuminance, luminance, and daylight factor along with qualitative aspects like psychological and physiological factors, as well as time, duration, and directionality of the luminous stimuli. The study aims to understand the influence and relation between daylight and human productivity in the context of educational buildings.
Congruence of ribosomal DNA sequencing, fatty acid methyl ester profiles and morphology for characterization of genera rhizophagus (arbuscular mycorhiza fungus)
Kumar S, Beri S, Adholeya A
Difficulties in obtaining sterile axenic cultures and heterogeneity in nuclear-encoded ribosomal DNA (n-rDNA) sequences within a single arbuscular mycorrhizal spore make genetic analysis of arbuscular mycorrhizal fungi (AMF) a complicated task, and currently available methods of genotyping are inadequate for identification to the species level. Therefore, we applied a multipronged approach on different isolates grown in root organ culture (ROC) belonging to the genus Rhizophagus which were not characterized at species level.
Alam Nihal, Karmakar Ranjan
Information and communication technologies are developing very fast and providing us opportunities due to their benefits such as reduced cost, anytime, anywhere availability, as well as its elasticity and flexibility. Cloud computing is one of the newly emerged models for technology that provide us the facility of central remoting of servers to maintain data, software, and application through the use of the Internet. Nowadays it is widely applicable in many areas such as libraries, information centres, in-house, applications and digital library services.
Nayak B P and Maharjan K L
The paper examined the trends of climate variability and local environmental changes and their implications on the livelihood of the people at local level in two Coastal districts in the state of Odisha in India. A trend analysis of the climatic variables has been made based on the Indian Meteorological Department database and the perception of local communities on the implications of these as well as other local environmental changes on livelihood has been discussed through a case study in three coastal villages.