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Search Results: 1 - 10 of 359781 matches for " Harus L.G. "
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Development of a Vibration Powered Micro Generator and its Application to Harvest the Vibration Energy of the KRI KKP-811’s Engine
Harus L.G.,Wiwiek Hendrowati,Rahmat Susanto
Jurnal Teknik Mesin , 2010,
Abstract: Vibration energy harvesting has been receiving a considerable amount of interest as a means of powering wireless sensors and low-power devices. In this paper, an energy harvester is presented to convert ambient mechanical vibration into electrical energy employing magnetoelectric generator. The harvester uses single magnet-spring attached on the coil. When the harvester is excited, the magnet moves relative to the coil, undergoes magnetic field variations and produces a power output. To obtain a maximum power output, the mass of magnet is varied. The magnetoelectric generator with various masses of magnets was tested by a harmonic exciter with various frequencies and amplitudes. The one with maximum power output was then applied to harvest the ambient vibration energy of KRI KKP-811’s Engine. The results show that this prototype can harvest maximum energy of 2μW when it is placed at the base/foundation of the engine.
Active-Passive Radiolocation of Dangerous Natural Phenomena
大气科学进展 , 1990,
Abstract: In nature one observes strong deviations from thermodynamic equilibrium. The most dangerous natural phenomena proceeding in a thermodynamically irreversible way, are accompanied by the initiation of nonthermal impulse radio and optical radiation, the intensity and amplitude-frequency characteristics of which may serve as a measure of irreversibility while making the passive radiolocation and simultaneously as an information characteristic of the degree of the phenomenon’s approach to the stage of maximum development.The active radiolocation of natural phenomena at the stage of thermodynamic irreversibility has a number of dis-tinct features caused by the high speed of their progress and anomalies of the dielectric properties and accordingly, ef-fective scattering area of natural radio targets.The above is the physical basis of the method proposed by the author, that of the active-passive radiolocation of dangerous natural phenomena such as thunderstorms-both naturally developing and provoked by flying vehicles or other modifying means, avalanches, landslides, catastrophic atmospheric eddies and showers, sudden destruction of sea, river and late ice and so on.Active-passive radar sounding of cloudiness presumes radical changes in the air traffic control in thunderous sit-uations in the take-off and landing areas of flying vehicles as well as along the airways.Thermodynamic irreversibility turns out to be an important factor in the process of the interaction of ice with heavy-duty icebreakers (nuclear-powered vessels) causing their anomalous corrosion. The non-thermal radio radia-tion arising at the deformation of ice cover under the pressure of an icebreaker or under the action of wind load, may be used while choosing the route and tactics of the ice-breaker’s progress, for the hydrometeorological service of oth-er sea and coastal operations. The completed investigations of the thermodynamically irreversible natural phenomena have found practical application, but their wide utilization is still ahead.The experiments of active-passive radiolocation have been carried out at the experimental proving grounds, in laboratories, in weather planes, on board an atomic-powered icebreaker. Simultaneously there have been developing the theory of thermodynamically irreversible phase transitions, in particular deformation-crystallization processes.So far, there is no generally accepted term denoting the proposed method of the active-passive radiolocation of dangerous natural phenomena (using thermodynamic irreversibility).
Case study of health education aimed at smoking prevention in a medical college
Nurieva, L.G.
Tobacco Control and Public Health in Eastern Europe , 2011,
Abstract: The issues of smoking prevention are given significant attention in training of medical college students. Health education work in this direction is carried out with active participation of the students themselves. The training of future health professionals anticipates them to be able to organize the prevention of smoking in population. (Full text is in Russian)
L.G. Lovinskaya
Voprosy Sovremennoj èkonomiki , 2013,
Abstract: The essence of the communication system of accounting and taxable income in determining the object of taxation on profit on the rules and on the basis of accounting data. The necessity of further improving the methodological foundations of Title III of the Tax Code of Ukraine, Income Taxes
About Unitary Quantum Field Theory
L.G. Sapogin
Applied Physics Research , 2010, DOI: 10.5539/apr.v2n2p114
Abstract: The paper proposes a model of a unitary quantum field theory where the particle is represented as a wave packet. The frequency dispersion equation is chosen so that the packet periodically appears and disappears without changing its form. The envelope of the process is identified with a conventional wave function. Equation of such a field is nonlinear and relativistically invariant. With proper adjustments, they are reduced to Dirac, Schr dinger and Hamilton-Jacobi equations. A number of new experimental effects are predicted both for high and low energies.
Eextremely low birth weight newborn
Bochkova L.G.
Saratov Journal of Medical Scientific Research , 2010,
Abstract: The article analyses the modern state and the history of the extremely low birth-weight newborns problem. The specific medical characteristics of these newborns, connected with their morphofunctional immaturity, are presented. Definitions, diagnostics criteria and main sectors of medical care for patients with typical disorders of neonatal adaptation for this group are given. Substantial reasons for creating a complex program of early medical care are given, and the tasks of this program are formulated. Solving these tasks will provide safe survival of the extremely low birth-weight infants
S. Zijlstra, Nicolaas Meyndertsz. van Blesdijk. Een bijdrage tot de geschiedenis van het Davidjorisme
L.G. Jansma
BMGN : Low Countries Historical Review , 1986,
Increased decomposition of subsurface peat in Swedish raised bogs:are temperate peatlands still net sinks of carbon?
L.G. Franzén
Mires and Peat , 2006,
Abstract: An increased rate of decomposition has been observed in a large number of raised bogs in southern Sweden and elsewhere since the 1970s. The effect is manifest as a discoloured and mucous subsurface peat layer, and there is associated subsidence of mire surfaces. This paper reports the results of a systematic investigation of the phenomenon in 14 raised bogs in southern Sweden, which was carried out between 1997 and 2005. Degree of decomposition, bulk density and ash content were measured and evidence of surface subsidence over recent decades was collected. Shallow peat layers of ‘normal’ appearance could not be found anywhere within the study sites, and all showed the same signs of secondary decomposition. In particular, the ombrotrophic parts of the Komosse Bog Complex appeared to have subsided by at least 150 mm over the last 35 years, i.e. at a rate of approximately 4.3 mm per annum, which is more than four times the average rate of peat formation in circumboreal raised bogs. The changes observed could have been caused by change in any one of a number of factors, e.g. climate, hydrology and rate of nutrient supply; or by a combination of such factors. However it seems most likely that they are attributable to the heavy modern nutrient load, e.g. of dust from anthropogenic sources. There is cause for concern that many high-latitude peatlands may consequently have switched over from being net sinks, to net sources, of atmospheric carbon.
Umidade relativa de equilibrio e oxida??o de lipídeos em farinhas de castanha do Pará, de macadamia e de soja
Prado-Filho, L.G. do;
Scientia Agricola , 1994, DOI: 10.1590/S0103-90161994000200023
Abstract: lipid oxidation was studied on the flour of brazil-nut (bertolleta excelsa), macadamia nut (macadamia integrifoliá) and soybean seed (glycine max), in enviroments with controlled water activity (aw) values of 0.51; 0.57; 0.67; 0.75; 0.79 and 0.81 at 35°c. every 24 hours during 6 days the peroxide value was determined for each aw in flour with enzyme inactivation (110°c, 2 hours) as well as in flour without inactivation. at low aw values (up to 0.75) the oxidation by oxigen is the most effective mechanism of deterioration of the lipids. at higher water activity values (0.79 and 0.81) the protective effect of the humidity upon the lipids and the greater mobility of the reagents make the activity of the lipoxigenase the most important mechanism of lipid deterioration.
Equipamento experimental para determina??o de isotermas de adsor??o pelo método dinamico
Padro Filho, L.G.;Sabbagh, M.;
Scientia Agricola , 1993, DOI: 10.1590/S0103-90161993000300019
Abstract: the evaluation of the performance of an experimental apparatus for the determination of flour sorption isotherms was carried out. to adjust the water activity - aa - values (0.51; 0.57; 0.67; 0.75; 0.79 and 0.81) of the air stream, saturated salt solutions were used. the comparison of the apparatus with and without air recycling, was done by determining the sorption isotherm of soybean flour at 35°c. the air recycling model enables to obtain reliable data in a high aa range, where samples are usually impaired by microbial growth when the other model is used. time to obtain equilibrium for soybean flour with the air recycling model was about 50% less than for the model without air recycling.
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