Dose Analysis in Boron Neutron-capture Cancer Therapy (BNCT) Neutron Generator Based for Breast Cancer

The purpose of this study is to know the concentration of boron and irradiation times which optimizes the treatment of breast cancer using the BNCT method. This research was conducted by using MCNPX simulation which outputs are flux neutron, neutron scattering dose and gamma dose. The neutron source used is the BSA D-D Neutron generator model. The independent variable of this research is the boron concentration injected into the cancer. The dependent variable is the total dose rate and irradiation time which determines the effectiveness of  BNCT therapy. The controlled variables are the output of the neutron flux, dose and gamma neutron scattering dose. The results showed that in the range of 70-150 µg/g, the dose rate received by cancer increases with increasing the concentration of boron-10. If the dose rate is increased, the irradiation time interval will be faster. The Boron dose of 70 μg/g and the dose rate of irradiation 0.00293603 Gy/sec needs an irradiation time of 409.43 minutes; the boron dose of 90 µg/g and the dose rate of irradiation 0.00241049 Gy/sec needs an irradiation time of 345.71 minutes; the boron dose of 110 µg/g and the dose rate of irradiation 0.00271236 Gy/sec needs an irradiation time of 307.24 minutes; the boron dose of 130 µg/g and the dose rate of irradiation 0.00303389 Gy/sec needs an irradiation time of 274.67 minutes; and the boron dose 150 µg/g and the dose rate of irradiation 0.00334565 Gy/sec needs an irradiation time of 249.08 minutes. The Optimum concentration of boron is 150 µg/g with irradiation time of 249.08 minutes

Analisis Dampak Motivasi dan Profesionalisme terhadap Kualitas Audit Aparat Inspektorat dalam Pengawasan Keuangan Daerah (Studi Empiris pada Pemerintah Kabupaten Cirebon)

This research entitled is "The Impact of Motivation and Professionalism on the Auditquality of Inspectorate officers Financial Supervisory Areas (Empirical Studies inCirebon regency governments)." The purpose of this study was to examine theimpact of motivation and professionalism on audit quality. Common issues in thisresearch is the existence of audit findings that are not detected by the officers of theInspectorate as an internal auditor, but found by Badan Pemeriksa Keuangan (BPK)as the external auditor. This study has three variables, namely motivation andprofessionalism as independent variables and audit quality as dependent variables.Motivation variables were measured with four indicators of the level of aspiration,toughness, tenacity, and consistency. Variables measured with five indicators ofprofessionalism that is dedication to the profession, social obligations,independence, confidence in the profession, relations with other professions. Whileaudit quality is measured by three indicators of the process quality, quality results,and quality audit, follow-up audit. Method of this research is explanatory orConfirmation Research. The sampling data of this study using census techniques.The data analysis used is simple regression analysis and multiple regressions. Thepopulation chosen was the auditor in charge of the Inspectorate of Cirebon. Thesamples taken were 30 respondents. Based on the research that has been done, itcan be seen that the impact of motivation on audit quality is 12.6%, but notsignificant impact, professionalism impact on audit quality by 41.9% and significantlypositive. While, motivation and professionalism simultaneously impact on auditquality by 38.3%

Flagged and Compact Fuzzy ART: Fuzzy ART in more efficient forms

Two new simplified algorithms for Fuzzy ART have been developed. Onlycommitted category nodes C rather than the full capacity of the category nodes N (N mayor que C) are involved in the determination of the winning categoy node. In addition tothat, the initialization for weights and choice values has been eliminated. This reduces a lot the training time without altering the categorazation accuracy.Although, the new architectures are presented toward the fuzzy ART ANN in this work. However, they can be applied to all module of ART

The Effect of nano particles of TiO2-Al2O3 on the Mechanical properties of epoxy Hybrid nanocomposites

Preparation of epoxy/ TiO2 and epoxy/ Al2O3 nanocomposites is studed and investigated in this paper. The nano composites are processed by different nano fillers concentrations (0, 0.01, 0.02 ,0.03, 0.04 ,0.05 ,0.07 and 0.1 wt%). The particles sized of TiO2,Al2O3 are about 20–50 nm.Epoxy resin and nano composites containing different shape nano fillers of (TiO2:Al2O3 composites),are shear mixing with ratio 1 to 1,with different nano hybrid fillers concentrations( 0.025 ,0.0 5 ,0.15 ,0.2, and 0.25 wt%) to Preparation of epoxy/ TiO2- Al2O3 hybrid composites. The mechanical properties of nanocomposites such as bending ,wearing, and fatigue are investigated as mechanical properties

The Use Of Altman Equation For Bankruptcy Prediction In An Industrial Firm (Case Study)

Financial analysis provides the basis for understanding and evaluating the results of business operations and explaining how well a business is doing. In addition, the financial statement analysis can help creditors, investors, and managers answer the following questions: Can the company pay the interest and principal on its debt? Does the company reply too much on non-owner financing? Does the company earn an acceptable return on invested capital?  Is the gross profit margin growing or shrinking? Does the company effectively use non-owner financing?  Are costs under control? Is the company’s market growing or shrinking? Do observed changes reflect opportunities or threats? Is the allocation of investment across different assets too high or too low?  Furthermore, financial statement analysis reduces our reliance on hunches, guesses, and intuition. Above all, it reduces risk and/or uncertainty in decision making. Therefore, to reduce risk, uncertainty, and avoid bankruptcy one must appreciate the usefulness of financial statement analysis by using some tools and techniques to evaluate and project the future performance of the firm within a given industry.The researchers used the Altman z-score analysis to predict a firm’s insolvency. The study results for the period 2002-2004 indicated the weaknesses of “Jordan Establishment for Marketing Durable goods”.  The z-score from the analysis (for the given period) was less than 1.81 (z-score <1.81).   Evidence suggests that the firm has increased its debt and will be facing bankruptcy in the near future. In liquidity ratios, the percentage of the working capital is less than 1, indicating an increase in liabilities over assets. Leverage ratios increased from 41.7% to 56.7%, while inventory turnover decreased by 1.2 times through the given period.  Net profit to total sales reduced from (–1.3) to (–1.8) for the same period. Also, the assets return percentage declined from (-9.29%) to (-10.3%), while the stock book value declined from (0.95) JD to (0.67) JD through the given period.  The main features provide a gloomy picture and indicate inefficiencies within the firm

Analisis Hubungan Motivasi terhadap Kinerja Pegawai (Studi Kasus pada Kantor Wali Kota Sorong Papua Barat)

Penelitian ini bertujuan untuk menganalisis pengaruh motivasi terhadap kinerja pegawai pada kantor wali kota sorong Papua barat tahun 2018. Populasi dan sampel dalam penelitian ini adalah pegawai kantor wali kota sorong Papua barat yang diambil sampelnya sebanyak 50 orang pegawai. Jenis penelitian yang digunakan adalah survey Analitik dengan pendekatan Cross Sectional Study ,Yaitu jenis penelitian untuk melihat hubungan antara variabel Dependent dan variabel independent.sedangkan analisis yang digunakan analisis univariat,bivariat dan multivariat. Hasil penelitian menunjukkan bahwa Insentif yang diberikan kepada pegawai belum dapat memenuhi kebutuhan,dimana dari 50 orang pegawai yang dijadikan sampel memiliki insentif cukup sebanyak 22 orang pegawai dengan persentase 44,0 %, sedangkan yang memiliki insentif kurang sebanyak 28 orang pegawai dengan persentase 56,0 %. tunjangan yang diberikan kepada pegawai dari 50 sampel yang diambil terdapat 25 orang pegawai memiliki tunjangan cukup dengan persentase sebesar 50,0 %, sedangkan yang memiliki tunjangan kurang sebesar 25 orang pegawai dengan persentase 50,0 %. penghargaan yang diberikan kepada pegawai belum dapat memenuhi kebutuhan,dimana dari 50 orang pegawai yang dijadikan sampel memiliki penghargaan cukup sebanyak 22 orang pegwai dengan persentase 44,0 %, sedangkan yang memiliki penghargaan kurang sebanyak 28 orang pegawai dengan persentase 56,0 %

Development of Truss Linear Macro-Element

Macro-elements are among the powerful means in reducing the number of equations to be solved in finite element analysis. In the proposed method, several finite truss elements will be transformed into a single element called the macro-element. This is done by equating the potential energy of the macro-element to the potential energy of the equivalent truss finite elements. If the order of the macro-element function corresponds to the order of the structural behavior that it models, an exact solution is achieved. In this paper, a truss linear macro-element is developed. The developed macro-element was tested and the results were compared with the results of conventional finite element solutions and with closed form solutions. Excellent results were achieved with substantial reduction in the number of equations

Dissolution of Gypseous Rocks under Different Circumstances

The influence of temperature, flow velocity, gypsum content, salinity of solvent and hole diameter on the amount and rate of dissolution of gypseous rock samples was investigated. The rock samples were obtained from the proposed Al-Fat’ha dam site located approximately 280km to the north of Baghdad city. The gypsum content for these samples ranged from 16% to 90%. Dissolution tests were carried out with the aid of a special system that was modified and manufactured to allow passing water at different speeds through a drilled hole along the center of the rock samples. The amount of dissolution of gypsum was determined under different conditions. The results showed that the amount and rate of gypsum dissolution increased with increasing the temperature of the test. The effect was more pronounced on rock samples with low gypsum content. Increasing the flow velocity also increases the amount and rate of gypsum dissolution. With this parameter, the effect of gypsum content was marginal. Increasing the salinity of the solvent (using low percentages of NaCl additives) has a great influence on the amount and rate of gypsum dissolution, and further increase in the salinity exhibited a marginal increase in the amount of dissolution when compared with the lower salinity concentration. The Tigris river water (as a natural solvent) exhibited a negligible effect on the amount and rate of gypsum dissolution. Increasing the diameter of the hole along the center of the sample increases the inside area exposed to water and hence generates more dissolution

Comparative Study of Load Carrying Capacity of Steel Tube Columns Filled with Lightweight Concrete and Normal Concrete

Tests on steel columns filled with normal concrete and lightweight concrete were carried out to investigate the actual behavior and the load carrying capacity of such columns. Eight full scale rectangular cross-section columns filled with lightweight aggregate concrete and normal weight aggregate concrete, four specimens each, were tested under axial loads for comparison purposes. The results showed that using lightweight concrete filling instead of normal concrete filling will reduce the weight of columns. At the same time, a high load carrying capacity is achieved

Magnetic Depth Estimation for Dyke-Like Bodies by Using Fraser Filter – A New Scheme

Abstract: Depth estimation for dyke like bodies has been investigated through using Fraser filter. The procedure consists of applying Fraser filter to magnetic profiles data due to dyke-like sources. Three ways of calculation are followed to estimate the depths of these bodies and good results with low percentage errors are achieved. Firstly, defining the width of the profile at two third of maximum amplitude of the residual filtered out data gives directly the depth to the top of the body. Secondly, plotting filtered data values at various levels of amplitudes against distances between points of these levels at the two lines of maximum slopes of the residual profile give a straight slope line. A projection line from the amplitude axis at two third value of maximum amplitude to the slope line read directly at distance axis the depth to the top of the body. Thirdly, the zero crossover distance defined on the plot of filtered data against distance divided by two gives directly the depth to the top of the body.Low percentage errors are found by applying the three ways, although there are small variations between them, most values are too low. This method of depth estimation is also applied to published field example and the result is too good. The procedure is simply applied and it gives a reliable and accepted depth values compared with actual depth values of the dyke-like bodies. The present procedure can be considered as a new scheme for depth estimation of magnetic sources if one considers the low percentage errors and the success of the results particularly in mid latitudes