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.
Simons K L, Sheppard P J, Adetutu E M, Kadali K, Juhasz A L, Manefield M, Sarma P M, Lal B, Ball A S
Marine oil pollution can result in the persistent presence of weathered oil. Currently, removal of weathered oil is reliant on chemical dispersants and physical removal, causing further disruption. In contrast few studies have examined the potential of an environmentally sustainable method using a hydrocarbon degrading microbial community attached to a carrier. Here, we used a tank mesocosm system (50 I) to follow the degradation of weathered oil (10 g I-1) using a bacterial consortium mobilised onto different carrier materials (alginate or shell grit).
Pala Nazir A, Negi A K, Gokhale Yogesh, Showkat Aziem, Vikrant K K, Todaria N P
Carbon stock estimation was conducted in tree species of Sem Mukhem sacred forest in district Tehri of Garhwal Himalaya, Uttarakhand, India. This forest is dedicated to Nagraj Devta and is dominated by tree species, including Quercus floribunda, Quercus semecarpifolia and Rhododendron arboreum. The highest values of below ground biomass density, total biomass density and total carbon density were (34.81+-1.68) Mg.ha-1, (168.26+-9.04) Mg.ha-1 and (84.13+-4.18) Mg.ha-1 for Pinus wallichiana.
Kumar P, Jain S, Gurjar B R, Sharma P, Khare MLidia Morawska, Rex Britter
Deterioration of air quality in Indian megacities (Delhi, Mumbai or Kolkata) is much more significant than that observed in the megacities of developed countries. Densely packed high-rise buildings restrict the self-cleaning capabilities of Indian megacities. Also, the ever growing number of on-road vehicles, resuspension of the dust, and anthropogenic activities exacerbate the levels of ambient air pollution, which is in turn breathed by urban dwellers. Pollution levels exceeding the standards on a regular basis often result in a notable increase in morbidity and mortality.