7,271 research outputs found
Bibliographics for the 983 eprints in the live archives of E-LIS : trends and status report up to 7th July 2004, based on author-self-archiving metadata
No full textThe priority for ideas and philosophy related to "Network Theory" have been traced back and documented by Braun(2004),and credit goes to Karinthy(1929).The IT has empowered to realise it, as the most practical phenomena and it is no more a humour. The OAI (Open Archives Initiatives)and ACIS (Academic Contributor Information System)are progressive in the direction ,which may lead to realise the "Collective Genius" at global level. Focus of present study is on Author-Self-Archiving (A-S-A)Metadata of the 983 Eprints in the Live Archives of the E-LIS (EPrints of Library and Information Science),which were approved till 7th July 2004.The A-S-A Metadata was used for librametric analysis. Self-explanatory bibliographics are illustrated.The highlights include: Conference papers (34%); highest approval, June 2004 (28%); published archives (76%);not refereed (52%); not in public domain (60%); highest self-archiving-author (De Robbio, Antonella).The Nos. of EPrints having single JITA domain specifications were: Theoretical and general aspects of libraries and information(27); Information use and sociology of information(80);Users,literacy and reading(13);Libraries as physical collections(30);Publishing and legal issues(57);Management(13);Industry, profession and education(36);Information sources, supports, channels(113) ; Information treatment for information services, Information functions and techniques (101); Technical services libraries, archives and museums(25); Housing technologies(1); Information technology and library technology(92); and Inter-domainery (395) i.e. having specifications of two or more than two JITA classes
FIGURE 1. Zingiber meghalayense. A. Single plant. B. A in A new species of Zingiber (Zingiberaceae) from Northeast India
No full textFIGURE 1. Zingiber meghalayense. A. Single plant. B. A portion of plant with rhizome and inflorescence. C. A part of inflorescence with single flower. D. A leaf. E. Ligule. F. Bract. G. Bracteole. H. Calyx. I. Dorsal lobe. J. Lateral lobes. K. Labellum. L. Stamen. M. Stigma. N. Cross section of ovary. O. Fruits. (Photo credit: S. K. Singh & Ramesh Kumar).Published as part of Kumar, Ramesh, Mood, John, Singh, Sushil K. & Sinha, B.K., 2013, A new species of Zingiber (Zingiberaceae) from Northeast India, pp. 61-64 in Phytotaxa 77 (4) on page 62, DOI: 10.11646/phytotaxa.77.4.2, http://zenodo.org/record/506684
MoS2 microflowers as a stable and high performance anode material for sodium-ion batteries
No full textSodium-ion batteries are most probable alternative system to current Li-ion batteries, because of sodium is highly abundant in earth's crust. But, Na-ion batteries still have many obstacles for commercialization, although researchers have proposed a number of electrode materials for Na-ion batteries [1, 2]. In particular, negative electrodes for Na-ion batteries are one of the major challenging issues, because graphite, the representative anode material for Li-ion batteries, shows low Na-ion intercalation/deintercalation capability [3]. Here we report the pure MoS2 microflowers with nano-sized petals which are prepared by combination of hydrothermal reaction followed by calcination for Na-ion battery anode materials. The electrochemical performance of MoS2 microflowers with different binders (PVDF, PEO and Na-alginate) is evaluated against pure Na metal in a half-cell configuration through a conversion reaction. Especially, the electrode of MoS2 microflowers with a Na-alginate binder shows excellent cyclic stability, delivering a high discharge capacity of 595 mAh g-1 after 50 cycles. Also, it exhibit high rate capability, retaining a capacity of 236 mAh g-1 at 10C without any carbonaceous materials. The improved electrochemical performance was mainly attributed to the synergetic effect of the morphology of MoS2 microflowers and good adhesive properties of alginate binder. Furthermore, we report a Na-ion full cell using the MoS2 microflowers anode with a Na3V2O2x(PO4)2F3-2x/C as a cathode material
Assessing the Drivers and Challenges to Deploying Lean-Green Practices the in Indian Manufacturing Sector.
No full textPurpose: With a rapid growth in the Indian manufacturing sector, the
assessment of the sector is necessary for various aspects. The present study focused
on identifying and assessing the drivers and challenges pertaining to current practices
of lean-green deployment in Indian manufacturing based on the recent literature and
experts in the manufacturing space. Design/methodology/approach: The study was
conducted in three phases. Phase 1 involved literature reviewand expert consultation.
Phase 2 includes a three-step data collection procedure whereby 44 experts provided
responses that formed the basis for the assessment of the factors. Fuzzy TOPSIS
(Technique for Order of Preference by Similarity to Ideal Solution) was used to
rank the drivers and challenges with respect to the perspective of the consumer,
industry, and the government. Phase 3 involved validating the relevance of our study
based on the experts and literature. Outcome: The top-ranked driver and top-ranked
challengewas identified. Insight into the present scenario of lean-green deployment in
manufacturing is facilitated by factors identified from recent literature. Originality:
There is very little literature assessing the factors pertaining to lean-green deployment
in Indian manufacturers. Most work focus specifically on SMEs or MSME, and not
the entiremanufacturing sector.Accordingly, respondents selected for the study were
those with diverse experience in the secto
AN OVERVIEW ON MOUTH DISSOLVING FILMS
No full text*S. Naveen Kumar, K. Ramesh Kumar, S. Raja Sundaram and S. Sudharsa
Diagnostic investigation of flame spread mechanism in dual-thrust solid propellant rocket motors
No full textNumerical studies have been carried out to examine the flame spread mechanism and the chamber dynamics of high-performance dual-thrust solid propellant rocket motors during the starting transient period of operation. Using a three-dimensional unsteady, shear-stress transport k-ω turbulence model, detailed parametric studies have been carried out to examine the aerodynamic choking and the existence/non-existence of a fluid throat at the transition region during the startup transient of dual-thrust motors (DTMs). In the numerical study, a fully implicit finite volume scheme of the compressible, density based Navier-Stokes equation is employed. We confirmed that, at the subsonic inflow conditions, there is a possibility of the occurrence of internal flow choking in dual-thrust motors with large length-to-diameter ratio (L/d > 44) due to the formation of a fluid throat at the beginning of the transition region induced by area blockage caused by boundary layerdisplacement thickness. We also confirmed that in such motors the choked flow becomes unchoked flow during the flame spread period due to the mass injection from the wall as a result of the thinning of the boundary layer thickness. We have demonstrated that without altering the grain geometry one can alter the flame spread mechanism by altering the igniter jet turbulence intensity, igniter gas temperature and propellant conductivity. Additionally, the numerical results of inert simulators of dual-thrust motors are compared with that of the case with propellant injection for establishing the physical situations of the choked and unchoked flow conditions during the starting transient period of operation of dual-thrust motors with high-propellant loading density
3D flow visualization and geometry optimization of cavity based scramjet combustors using k-ω model
No full textIn this paper numerical studies have been carried out to examine the intrinsic flow features of cavity based scramjet combustors with backward facing step and forward ramp using 3D, density-based, implicit, SST k-omega turbulence model. The preliminary results show a wide variety of flow features resulting from the interactions between the injector flows, shock waves, boundary layers, and cavity flows. In all the cases the C2H6-CO2-H2O fuel is injected at three different jet angles for the optimization of the jet orientation. Through the 3D numerical simulation we have corroborated that an optimized cavity is a good choice to stabilize the flame in the scramjet combustor as it generates a benign recirculation zone in the scramjet combustor. We comprehended that the cavity based scramjet combustors have a bearing on the source of disturbance for the transverse jet oscillation, fuel/air mixing enhancement, and flame-holding improvement. We concluded that the cavity shaped combustor with backward facing step and 45° forward ramp having an injector location of 1.6 times of its hydraulic diameter from the inlet facilitating at an angle of injection of 45° opposing the inlet flow is a good choice to getting relatively higher temperature at the exit
A novel design for an RF MEMS resistive switch on PCB substrate
No full textCopyright @ 2008 Stimulation Action on MEM
Novel Design of Cocured Composite ‘T’ Joints with Integrally Woven 3D Inserts
No full textComposites can be exploited to their full potential when cocured, wherein different parts are made and bonded together in a single cure operation to realise an integral structure. The key element in a typical cocured construction is T-joint, which forms the primary load transfer mechanism between the skin and stiffener in a structural assembly. T-joints are particularly vulnerable for pull off loads and researchers are looking at various techniques to improve the pull strength viz. stitching, tufting, 3D weaving, multilayer weaving, 3D braiding and the like. The present work uses a novel technique to improve the strength of T-joints by employing a hybrid design wherein an integral 3D ‘T’ insert is interleaved with a conventional T-joint. Inserts were woven using 3K and 6K carbon tows and incorporated in T-joints using CSIR-NAL proprietary process called ‘Vacuum Enhanced Resin Infusion Technology (VERITy)’ process. Several configurations of T-joints were tested in an UTM in the pull mode till the failure to assess the efficacy of integrally woven 3D inserts. It was observed that the initial failure load was nearly the same across the various T-joint configurations tested whereas the maximum failure loads were quite different. The normalised strength of T-joints with integrally woven 3D inserts in pull off mode was enhanced by about 30% when compared T-joints without the insert and thus vindicating the usage of integrally woven 3D insert in a cocured T-joint. The insert is conceived in such a way that it can be easily incorporated in the design of cocured structures
SELF MICROEMULSIFYING DRUG DELIVERY SYSTEM – A OVERVIEW
No full textS. Sudharsan*, K. Ramesh Kumar, S. Raja Sundaram and S. Naveenkuma
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