On the block wavelet transform applied to the boundary element method

This paper follows an earlier work by Bucher et al. [1] on the application of wavelet transforms to the boundary element method, which shows how to reuse models stored in compressed form to solve new models with the same geometry but arbitrary load cases - the so-called virtual assembly technique. The extension presented in this paper involves a new computational procedure created to perform the required two-dimensional wavelet transforms by blocks, theoretically allowing the compression of matrices of arbitrary size. Details of the computer implementation that allows the use of this methodology for very large models or at high compression ratios are given. A numerical application shows a standard PC being used to solve a 131,072 DOF model, previously compressed, for 100 distinct load cases in less than 1 hour – or 33 seconds for each load case

Analisis Teknis Aplikasi Kamus Bahasa Arab–Indonesia Berbasis Web

Bahasa memiliki peran yang penting dan strategis dalam aktifitas, fungsi dan transformasi informasi. Makalah ini bertujuan mengungkapkan aplikasi kamus Bahasa Arab-Indonesia berbasis World Wide Web (WEB). Pada pembuatan kamus ini dibutuhkan Arabic Unicode. Aplikasi Arab-Indonesia memiliki tugas utama menyimpan huruf hijaiyah, menyimpan tipe kata, Perubahan kata, dan bentuk kata. Aplikasi kamus Arab-Indonesia berbasis WEB dapat memudahkan pembelajran di dunia pendidikan

Corbiculidae in the Pantanal: history of invasion in southeast and central South America and biometrical data

The chronology of the invasion by Corbicula of the Central and the eastern part of South America is revised based on the literature and museum collection records. The occurrence of Corbicula largillierti (PHILIPPI, 1844) and Corbicula fluminea (MULLER, 1774) are reported for the first time for the northern part of the Pantanal of Mato Grosso, at the upper part of the Paraguay River, a tributary of the large Parana Basin. Corbiculidae were sampled at three different localities, on the banks of the Cuiaba River, near Cuiabi, capital of Mato Grosso State. The highest population density was 192 i/m(2). The shell length of the sampled population of Corbicula largillierti varied between 5.42 and 17.53 mm and Corbicula fluminea varied between 14.74 and 27.33 mm. The age for the sampled specimens of C. fluminea was estimated to be near three years and the date of arrival of the species in the Pantanal is probably 1996 or 97. The relationship between shell length, heigh, width and weight (shell and wet tissues) was also calculated and multivariate ANOVA test revealed significant differences between the species. The standard curve for the weight and length relationship, reflecting growth, was estimated using the exponential pattern

Potensi dan Strategi Pengembangan Bank Syariah di Indonesia: Kajian Produk Syariah dari Segi Fiqih Muamalat

At the present, Indonesia operate dual banking system that are conventional banking system with its interest rate runs side by side and the Islamic banking with the profit-sharing/non-interest system of its own. Islamic banking using fiqih muamalat as the basic theory in the syariah product. In general, communitys respond toward Islamic bank is good relatively that shown by the trend of Third Parties Funding and Financing to Deposit Ratio with low level of Non Performing Loan. This paper assess the consumers preference toward both conventional and Islamic banking, in related with analysis of potency and development strategy of Islamic banking in Indonesia by using fiqih muamalat as the basic theory. The analysis of data by using qualitatively (descriptive) analysis, cross tabulation, and logistic regression model. Literature study used in this paper. In general, communitys attitude toward interest rate system still ambiguous, that are interest rate is contrary to syariah of Islam, meanwhile in banking transaction they still use conventional system. The reasons that motivate consumer to adopt Islamic banking related to professionalism of bank, security, and pleasure in doing transaction, strategic location, and the implementation of syariah system. However, community still has difficulties to comprehend the technical term of Islamic banking. Thus, socialization and education process about economic system of Islam (syariah economic) designate necessary requirement in encourage the development of Islamic banking in the future

Analisis Segmen Pasar Dan Perilaku Nasabah Bank Syariah: Kajian Hukum Islam Terhadap Produk Hsbc Amanah Indonesia

The purpose of this research is for identifying market segment and customer behavior toward Islamic banking and its marketing implications in all regions of DKI Jakarta. The analytical tools applied are analysis of cluster, factor and descriptive. The result of this research for segmentation aspect showed the characteristics and size of each market segment of Islamic banks. The market segment consists of syariah loyalist, floating mass and conventional loyalist. From this research, floating mass segment is the most potential segment due to its market size compared to syariah loyalist and conventional loyalist segments.DOI: 10.15408/aiq.v4i2.253

Validasi Metode Analisis Cilostazol Dalam Plasma in Vitro Secara Kromatografi Cair Kinerja Tinggi

Cilostazol is an antiplatelet agent with the mechanism of action by inhibiting phos-phodiesterase III (PDE III). Referred to Food and Drug Administration(FDA),cilostazol is a drug recommended to be bioequivalence (BE) studied. A high-perfor-mance liquid chromatographic (HPLC) method with ultraviolet detector for in vitro determination of cilostazol in human plasma had been developed and validated.Cilostazol and pioglitazone as internal standard were extracted from human plasma by protein precipitation method using methanol. The mobile phase consisting of ac-etonitrile-potassium di-hydrogen phosphate buffer 50 mM (40:60) was used at the flow rate of 1.5 mL/min on reversed phase C18 column (SunfireTM, 5 µm, 250x4.6 mm), and was detected at wavelength of 257 nm. Linearity was established withinconcentration range of 20-2000 ng/mL with coefficient correlation (r) was 0,9999.Accuracy (% diff) of this method was -14.67% up to 8.84% with precision (CV) being 0.98% to 4.93%, and absolute recovery was established to be 82.26% to 119.85%.Cilostazol in plasma was stable for 30 days in -200C storage

Solution of hyperbolic bioheat transfer problems by numerical green's functions: the ExGA-linear θ method

This paper presents a time-domain formulation called Explicit Green's approach (ExGA) linear θ method for the solution of the bioheat equation. Starting from the hyperbolic bioheat equation, which includes the parabolic one as a special case, the linear method is incorporated into the standard ExGA time marching scheme. The numerical Green's function is firstly computed in the Laplace transform domain and then back-transformed to the time domain through the Stehfest inversion algorithm. The proposed formulation has the properties of stabilizing the results and suppressing numerical oscillations that appear in the presence of discontinuous solutions as assessed through the analysis of some bioheat transfer problems.

Prevalence, causes, and risk factors for functional low vision in Nigeria: results from the national survey of blindness and visual impairment.

PURPOSE: To estimate prevalence and describe causes of functional low vision (FLV) among a nationally representative sample of Nigerian adults, assess socioeconomic risk factors, and estimate the number of adults in Nigeria who might benefit from low vision assessment or rehabilitation services. METHODS: Multistage, stratified, cluster random sampling with probability proportional to size procedures were used to identify a nationally representative sample of 15,027 persons aged 40 years or older. Distance vision was measured using a reduced logMAR tumbling E-chart. All participants with presenting acuity of <6/12 in one or both eyes had their corrected acuity measured and underwent detailed clinical examination to determine the cause. FLV was defined as best corrected vision <6/18 in the better eye, after excluding those with no light perception in both eyes and those with treatable causes. Analysis took account of the clustered design. RESULTS: In all, 13,591 individuals were examined in 305 clusters (response rate, 89.9%). The crude prevalence of FLV was 3.5% (95% confidence interval, 3.1-3.9%). This was lower than the prevalence of blindness, which was 4.2%. Glaucoma was the most common cause and age the most important risk factor. There are estimated to be approximately 5000 adults with FLV per million population and 340 who are totally blind. Only 9.3% of those with FLV were of working age and literate. CONCLUSIONS: These are the first data on the prevalence, causes, and risk factors for FLV from Africa. Results support studies from Asia that the prevalence of FLV is lower than previously thought. Because the majority of adults with FLV in Nigeria live in rural areas and are elderly and not literate, further research is required to assess the nature of the interventions required and who might best deliver them

Hydrogels Applied for Conformance-Improvement Treatment of Oil Reservoirs

This chapter aims at presenting a review of gelling polymer systems that are commercially available or under academic development with potential to control the anisotropic permeability profile of heterogeneous oil reservoirs. In these reservoirs, the oil recovery and sweep efficiency tend to be low, even after applying secondary and enhanced oil recovery methods, because the injected fluid flows preferably through the matrix’s most permeable regions leaving behind part of the displaceable oil retained at the nonswept volume. For that, cross-linked polymers can be used to plug the high-permeability main paths by means of: (i) the formation of an in situ hydrogel or (ii) the adsorption or swelling of pre–cross-linked hydrogel within the reservoir pores, thus causing the diversion of the subsequently injected fluid to low-permeability zones and/or preventing the channeling and early breakthrough of the injected fluid (water or gas) in production wells. The selection of the most suitable hydrogel for the reservoir conformance-improvement treatment should take into account the nature of the conformance problem, the reservoir’s lithology, mineralogy, temperature, pH value, salinity, and hardness of the formation water, as well as the gelling system toxicity and cost

A Closer Look at Solar Wind Sputtering of Lunar Surface Materials

Solar-wind induced potential sputtering of the lunar surface may be a more efficient erosive mechanism than the "standard" kinetic (or physical) sputtering. This is partly based on new but limited laboratory measurements which show marked enhancements in the sputter yields of slow-moving, highly-charged ions impacting oxides. The enhancements seen in the laboratory can be orders of magnitude for some surfaces and highly charged incident ions, but seem to depend very sensitively on the properties of the impacted surface in addition to the fluence, energy and charge of the impacting ion. For oxides, potential sputtering yields are markedly enhanced and sputtered species, especially hydrogen and light ions, show marked dependence on both charge and dose