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Search Results: 1 - 10 of 6973 matches for " Leonardo;Saka "
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Physical Network Approach Applied to Wind Turbine Modeling with Simscape Language  [PDF]
Elhaini Jamila, Saka Abdelmjid
Open Journal of Modelling and Simulation (OJMSi) , 2014, DOI: 10.4236/ojmsi.2014.22010
Abstract: Model-Based Design is an efficient and cost-effective way to develop controls, signal processing, image processing, communications, mechatronics, and other embedded systems. Rather than re-lying on physical prototypes and textual specifications, Model-Based Design uses a system model as an executable specification throughout development. It supports system- and component-level design and simulation, automatic code generation, and continuous test and verification. This paper is focused firstly on the so-called model-based design and aims at presenting an up-to-date state of the art in this important field. Secondly, it develops a model based design for wind energy systems. Mathematical formulations and numerical implementations for different components of wind energy systems are highlighted with Simscape language. Finally, results are derived from simulations.
Vascular flora of Serra do Japi Biological Reserve, Jundiaí, southeastern Brazil
Lombardi, Julio Antonio;Carvalho, Carolina da Silva;Biral, Leonardo;Saka, Mariana Naomi;Hieda, Sean Miki;
Rodriguésia , 2012, DOI: 10.1590/S2175-78602012000200008
Abstract: floristic sampling was carried out in serra do japi biological reserve, jundiaí, state of s?o paulo, brazil, including physiognomies of semideciduous montane forest, a type of forest formation within the atlantic forest domain. six hundred and sixty one species distributed in 129 families were recorded; the ten most diverse phanerogam families were: asteraceae (56 species), fabaceae (37), rubiaceae (29), poaceae (25), solanaceae (24), cyperaceae (19), euphorbiaceae (19), orchidaceae (19), melastomataceae (17), and piperaceae (17). the addition of 322 species from other floristic surveys increased the number of species of serra do japi to 976, distributed in 141 families. compared to other floristic surveys carried out in the atlantic forest, our results highlight the floristic diversity of the study area and the importance of preserving the vegetation of this highly urbanized region.
Philistines' psycho-social characteristics
Saka? Marija
Zbornik Matice Srpske za Drustvene Nauke , 2009, DOI: 10.2298/zmsdn0929073s
Abstract: A philistine is a person who tends to present himself/herself as being more worthy then he/she is indeed. This phenomenon has its origin in the social class of the petty bourgeoisie that appeared on the historical scene in the from of petty shopkeepers and craftsmen. The petty bourgeoisie can be seen as a social class, but, as philistinism, it can be seen as a form of a person's behavior determined by his/her specific mental structure. The following characteristics can be ascribed to a philistine: egoism, hatred, envy, and extreme moods. Competition for success is an important philistine's characteristic. A philistine uses etiquette as a means of his/her resourcefulness. As a result of social changes, on the social and cultural scene there are some new forms of philistinism called 'sponsorship'.
Tolga Saka
Journal of Sports Science and Medicine , 2007,
Abstract: We present a case study of a person (63 year-old man), who has been using statins for 18 years, with rhabdomyolysis of the bilateral adductor muscles associated with strenuous and prolonged eccentric exercises (hiking) in a hot environment. Clinical examination showed predominantly on the right side muscle swelling and palpational pain of the bilateral adductor muscle groups and bilateral tibial edema. His serum creatine kinase (CK) level was 12218 IU/L. T2-weighted magnetic resonance (MR) images showed a high signal intensity in the bilateral adductor muscles of the hip. The patient did not develop complications and returned to his previous performance level in 30 days following adequate hydration and resting of the affected muscles. Strenuous eccentric exercise should be avoided during the course of statin use and clinicians should be aware of present observations when considering the significance of acute CK elevations in patients on statin treatment
Besov spaces of self-affine lattice tilings and pointwise regularity
Koichi Saka
Mathematics , 2015,
Abstract: We investigate Besov spaces of self-affine tilings of ${\Bbb R}^{n}$ and discuss various characterizations of those Besov spaces. We see what is a finite set of functions which generates the Besov spaces from a view of multiresolution approximation on self-affine lattice tilings of ${\Bbb R}^{n}$. Using this result we give a generalization of already known characterizations of Besov spaces given by wavelet expansion and we apply to study the pointwise H${\ddot {\rm o}}$lder space. Furthermore we give descriptions of scaling exponents measured by Besov spaces, and estimations of a pointwise H${\ddot {\rm o}}$lder exponent to compute the pointwise scaling exponent of several oscillatory functions.
Theory of Asymmetric Electrostatic Force  [PDF]
Katsuoi Saka
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2017, DOI: 10.4236/jemaa.2017.92004
Abstract: Asymmetric Electrostatic Force is a very interesting phenomenon. The intensity of the electrostatic force that acts on a charged asymmetric shaped conductor changes when the direction of the electric field is reversed. The theory of this phenomenon is not clear until today. Therefore this paper will clearly explain the theory of this phenomenon with Gauss’s law. Total ΣES on a closed Gaussian surface around a disk-cylinder shaped charged conductor is the same before and after when the direction of the electric field is reversed. However the distribution of ΣES changes. Many part of total ΣES gather on the front surface of the disk when the electric field is generated. But they transfer to the peripheral side of the cylinder when the direction of the electric field is reversed. This result means that many charges transferred from the surface to the peripheral side. As a result the intensity of the field direction electrostatic force becomes weak.
Determinants of adoption and productivity of improved rice varieties in southwestern Nigeria
JO Saka, BO Lawal
African Journal of Biotechnology , 2009,
Abstract: The study examines the status of adoption of improved rice varieties and its impact on rice production among smallholder farmers in southwestern Nigeria. Data for this study were generated from a farm survey of rice farmers selected by multi-stage sampling technique in two of the rice producing states of the region. The study employed adoption index, logit model and stochastic frontier model to assess the adoption status, its determinants and impact on farmers’ productivity respectively. The results show that farmers have responded appreciably to intervention programme that promote the use of improved rice varieties with an adoption rate of 68.7% which has resulted in an estimated proportional production increase of 19.4%. The mean yield of improved rice varieties (1.601 tons/ha) was significantly higher than the yield of the local varieties (1.154 tons/ha) with a yield advantage of 38.7%. In addition, rice yield for adopters of improved rice varieties (1.90 tons/ha) was significantly higher than that of non adopters (1.07 tons/ha). However, land area cultivated to rice, frequency of extension contact and the yield rating of the improved rice varieties were significant determinants of farmers’ decision to adopt improved rice varieties while with an average technical efficiency score of 78.4%, rice farmers have room to increase their productivity by increasing their farm size, quantity of improved seed and fertilizer.
Analytical Study of Undergraduate (BLS) Department of Library Science, (University of Maiduguri, Nigeria between 2000 – 2006)
KA Saka, JA Alhassan
Samaru Journal of Information Studies , 2008,
Abstract: Documentary source was used to provide analysis of the BLS projects submitted to Department of Library and Information Science, university of Maiduguri between 2000 and 2006. It was discovered that there was no single BLS project for the year 2001. A total of 355 BLS projects were submitted for the 6 years. In terms of study area 196 (55.21%) projects were on North Eastern Nigeria. It was discovered that case study covers 176 (49.88%) of the projects. The arrangement of the BLS projects by titles in ranked order showed that “problems, development and prospects in libraries” top the list with 46 (12.96%) scores. Low scores were recorded for projects on Current Awareness Services (CAS), Library cooperation, library standard etc with each having 1 (0.28%) project title.
Anti-Diarrhoeic and antibacterial Effects of Aqueous Pod Extract of Acacia nilotica in Albino Rats
B Umaru, S Saka
Nigerian Veterinary Journal , 2011,
Abstract: The anti-diarrhoea effect of aqueous pod extract of Acacia nilotica was investigated in rats. The pod extract of A. nilotica was obtained by Soxhlet extraction using distilled water as a solvent and subjected to phytochemical screening. The result of phytochemical screening revealed the presence of saponins, tannins, alkaloids, cardiac glycosides, flavonoids, and reducing sugars. The elemental analysis of the extract revealed high concentration of sodium followed by magnesium, iron, cadmium, zinc, manganese and potassium. The aqueous extract significantly (P<0.05) reduced the number of unformed faeces in castor oil induced diarrhoea in rats. It also significantly (P<0.05) reduced the gastrointestinal transit of activated charcoal. Enteropooling in the experimental rats was significantly (P < 0.05) reduced. The in vitro antibacterial and fungal study showed that the extract inhibited the growth of Staphylococcus aureus, Proteus vulgaris, Shigella dysentery, E. coli, Streptococcus pyogenes, Pseudomonas aerogenosa, Salmonella typhi, and Bacillus albus, as well as Candida albicans. The aqueous pod extract was therefore found to possess active antdiarrhoeic, antibacterial and mycostatic ingredients.
Famous medical doctors of Sombor in its history until the World War II
Kobilarov Aleksandar,Saka? Vladimir
Archive of Oncology , 2010, DOI: 10.2298/aoo1004115k
Abstract: Sombor is a town in the northwest of Ba ka, an area rich in culture. It was founded as a settlement in the 5th and the 6th centuries. There are many theories about the origins and name of the town. From the beginnings of the city and in the period when the town was under the Turks, the development of health care was poor. Especially during the period of the Turkish Empire, there was no cultural development in Serbian people. Educated doctors existed only in some western countries and the average lifetime of people in Sombor was 20-25 years. At the end of the 17th century, Sombor was freed from the Turks. Its first 'improvised' hospital with surgeons, Sombor obtained at the beginning of the 18th century. On February 17, 1749, Sombor became a free royal town. Dr. Petar Miloradovi arrived in 1770 as the first doctor. In 1778, the town got its first physician, Martin Peter Karl. The next city physician, Dr. Matthias Lotz introduced a new health code of conduct for the population, and Dr. Vasilije Maksimovi introduced new rules in the conduct and organization of health care workers. The second half of the 19th century was marked by two doctors of Sombor, a physician, Dr. or e Maksimovi , who was the main initiator of the construction of the first Sombor hospital in 1880, and Dr. Milan Jovanovi -Batut, who published a number of health-enlightenment magazines. Dr. Radivoj Simonovi came to Sombor in 1896. The doctors' influence to life and development of Sombor was very important, and without them Sombor would not be the town it is today.
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