Design of a Wide-Dynamic RF-DC Rectifier Circuit Based on an Unequal Wilkinson Power Divider

In this paper, a dual-channel RF-DC microwave rectifier circuit is designed with a 2:1 power distribution ratio in a Wilkinson power splitter. The rectifier circuit works at 2.45 Ghz. After impedance matching and tuning, the structure is able to broaden the dynamic power range of the rectifier circuit while maintaining maximum rectifier efficiency. Compared with the HSMS2820 rectifier branch, this design enhances the power dynamic ranges of 60% efficiency and 50% efficiency by 4 dBm and 3 dBm, respectively. Compared with the HSMS2860 rectifier branch, for the efficiency of 60% and efficiency of 50%, the power dynamic range is expanded by 5 dBm and 2 dBm, respectively. This shows that the technology is helpful for improving the stability of energy conversion at the receiver end of microwave wireless energy transmission systems. Finally, the rationality of this conclusion is verified by establishing a mathematical model.

Analisis Pengaruh Islamicity Performance Index Terhadap Tingkat Profitabilitas Pada Bank Syariah Indonesia

This study aims to determine the level of profitability at BUMN Sharia Banks consisting of Bank Mandiri Syariah, BNI Syariah and BRI Syariah which were merged into Bank Syariah Indonesia (BSI) and the factors that influence it. The three state-owned Islamic banks have a level of profitability that does not meet healthy standards in the fairly healthy category. The independent variables used in this study include Profit Sharing Ratio (PSR), Zakat Performance Ratio (ZPR), Equitable Distribution Ratio (EDR) and Islamic Income vs. Non-Islamic Income while the dependent variable is the level of profitability. The research method used is descriptive quantitative using Multiple Linear Regression analysis. The results of this study indicate that Profit Sharing Ratio (PSR) has a significant negative effect on the level of profitability of Islamic State-owned banks, Zakat Performance Ratio (ZPR) has a significant positive effect on the level of profitability of BUMN Sharia Banks, Equitable Distribution Ratio (EDR) has a significant negative effect on the level of profitability at BUMN Sharia Banks and Islamic Income vs. Non Islamic Income has no significant effect on the level of profitability of BUMN Sharia Banks. The implication of this research is to find out the extent to which at BUMN Sharia Banks can optimize financial performance with the factors that influence it, especially the ratio with Islamic principles. The still low standard of Islamicity Performance Index in each ratio is one of the causes of lessthan optimal profit growth at BUMN Sharia Banks.

Occupational Exposure in Radiation Applications in India: Trends and Distribution Analysis

Occupational exposure data in radiation applications provide a good insight on the radiation risks to workers from occupational hazards, the safe practices adopted and in deriving methods to prevent possible radiation exposures. The analysis of occupational exposure may be used to provide regulatory guidance and more focused attention to improve the safety systems, thus improving the personnel and environment safety. In this study, occupational exposure from radiation applications during 2004–18 amounting to a total number of 1951 486 occupational dose data are collected and analysed using the statistical software package, SPSS. As recommended by the United Nations Scientific Committee on the Effects of Atomic Radiation, four critical parameters viz., annual collective effective dose, average annual effective dose, individual dose distribution ratio and the annual collective dose distribution ratio for each practice are estimated. Using the trend observed for these parameters, it is predicted that occupational exposure in diagnostic radiology in the year 2023 would increase by 80% in total number of monitored with 76% increase in average collective dose and no significant change in average annual effective dose. In the same manner, nuclear medicine would see 28% of increase in radiation workers with the increase of 24% in collective dose with no significant change in average annual effective dose. Further, the reasons and area of regulatory focus for the different practices are discussed.

Development of MA separation process with TEHDGA/SiO2-P for an advanced reprocessing

Applicability of tetra2-ehylhexyl diglycolamide (TEHDGA) impregnated adsorbent for minor actinide (MA) recovery from high level liquid waste (HLLW) in extraction chromatography technology was investigated through batch-wise adsorption and column separation experiments. Distribution ratio of representative fission product elements were obtained by the batch-wise experiments, and TEHDGA adsorbent was shown to be preferable to TODGA adsorbent for decontamination of several species. All Ln(III) supplied into the TEHDGA adsorbent packed column was properly eluted from the column, and the applicability of the adsorbent was successfully showed by this study.

An Improved Revenue Distribution Model for Logistics Service Supply Chain Considering Fairness Preference

Revenue distribution is an important issue in the operations of a logistics service supply chain (LSSC). The existing works on revenue distribution are mostly based on the assumption of rational economic people that are purely self-interested. However, people also have a fairness preference, which impacts people’s decision-making behavior or even the success operations of the LSSC. For a two-level supply chain consisting of logistics service integrator (LSI) and several functional logistics service providers (FLSP), this paper establishes an improved revenue distribution model considering FLSPs’ inequity aversion. Specifically, the BO model (abbreviation of a model proposed by Bolton and Ockenfels in 2000) is improved to describe the FLSPs’ inequity aversion, which is combined into the conventional revenue distribution model. The proposed model aims to maximize the revenue of logistics service supply chain and obtains the best revenue distribution ratio of each member under equilibrium. In the numerical cases, the impacts of inequity aversion and the number of members with inequity aversion on the revenue distribution are discussed, respectively. The results show that a higher degree of FLSP’s advantageous inequity aversion corresponds to a lower revenue distribution ratio; a higher degree of FLSP’s disadvantageous inequity aversion corresponds to a higher revenue distribution ratio. Increasing the number of FLSP members with inequity aversion results in a higher profit of LSI and lower total utility of FLSPs and the utility of the supply chain. The more FLSP members with inequity aversion there are, the higher the LSI’s profit is, and the lower the total utility of FLSPs and the utility of supply chain are. In addition, the revenue distribution ratio of the FLSP increases with its relative fairness revenue coefficient among FLSPs.

Diagnosis and Distribution of Hard Ticks in Cows in Mosul City-Iraq

The present study included the diagnosis of three species of hard ticks belong to the family Ixodidae parasitizing 72 cows out of a total of 145 cows examined, with a total distribution ratio of 49.6% in the eastern and western regions of Mosul city. Tick species were diagnosed according to morphological and standard characteristics such as palps, capitulum, coxa, scutum, anus, and spiracles. Ticks of H. anatolicum anatolicum recorded the highest prevalence and distribution ratio in cows of 48.6%, followed by both B. annulatus and R. turanicus with 34.7%, 16.7% respectively. As for specifying the patterns of ticks’ distribution on cows, it was observed that a pattern of single infestation recorded the highest distribution ratio of 51%, followed by a double-infestation of 19.4%, while a mixed infestation pattern recorded the lowest ratio of 9.7%. With regard to the distribution of tick species on the body areas per tick species, the results showed the prevalence and distribution of H. anatolicum anatolicum tick species on the back was 44.1%, B. anaulatus recorded the highest prevalence ratio of 29% in the ear, while R. truanicus recorded the highest prevalence in the ear, back, and Axillary of 37.1%, 28.5%, and 20% respectively. The results concerning the distribution of tick species in each area of the body showed the prevalence of H. anatolicum anatolicum in the ear area by 51.1%, both H. anatolicum and anatolicum recorded the highest prevalence ratio in the tail by 51.6% and 43.6% respectively, and the highest prevalence of H. anatolicum and anatolicum species was found in the back by 72%, while the highest prevalence of B.annaulatus was found in the udder and Axillary of 57.9% and 56.4% respectively. Nevertheless, the results illustrated that no significant difference had been found regarding the distribution and prevalence of tick species in the eastern and western regions of the city of Mosul.

Analysis of the Performance of Islamic Commercial Banks in Indonesia Using the Islamicity Performance Index Approach for the 2014-2016 periods

This study aims to reveal the application of Islamic principles to the performance of Islamic Commercial Banks in Indonesia for the 2014 to 2016 period using the Islamicity Performance Index approach. The ratios in the Islamiciti Performance Index are Profit Sharing Ratio, Zakat Performance Ratio, Equitable Distribution Ratio, Directors-employee Wefare Ratio, Islamic Income vs Non-Islamic Income. The data used in this study are secondary data. The population of this research is all Islamic commercial banks in Indonesia from 2014 to 2016 with a sample of two banks, namely Bank Muamalat Indonesia and Bank Syariah Mandiri. Sampling was done using purposive sampling method. The results showed that the performance of Islamic Commercial Banks in Indonesia using the Islamicity Performance Index approach for the period 2014 to 2016 has the predicate "Not Good". There are several unsatisfactory ratios, namely the Zakat Performance ratio, the Equitable Distribution ratio, and the Directors-Employee Ratio. From the results of performance calculations using the Islamicity Performance Index approach among the three banks, namely Bank Muamalat Indonesia, Bank Syariah Mandiri, and Bank BRI Syariah, it shows that the three banks both get the predicate "Good Enough".

Peran Islamicity Performance Index dalam Meningkatkan Profitabilitas Perbankan Syariah di Indonesia

Perbankan syariah memiliki karakteristik tersendiri dibanding dengan perbankan konvesional, sehingga diperlukan pengukuran kinerja bank syariah yang dapat memenuhi tujuan hukum Islam (syariah). Saat ini, pengukuran yang sesuai untuk perbankan syariah adalah Islamic Performance Indeks. Tujuan dari penelitian ini adalah untuk mengukur Islamic Performance Indeks pada perbankan syariah di Indonesia dan bagaimana pengaruhnya terhadap profitabilitas yang diproksikan oleh Return on Assets. Dengan demikian penelitian ini dilakukan dengan pendekatan asosiatif untuk melihat pola hubungan variabel bebas dan variabel terikat. Variabel bebas penelitian ini adalah Islamic Performance Indeks yang terdiri dari sharing ratio, zakat performance ratio, equitable distribution ratio, directors-employees welfare ratio, Islamic income vs non-Islamic income, sedangkan variabel terikatnya adalah Return on Assets (ROA). Sampel penelitian adalah 11 bank umum syariah dengan periode pengamatan selama 2014-2018. Untuk menganalisis data digunakan metode regresi data panel dengan bantuan EViews versi 9. Hasil penelitian menunjukkan bahwa secara parsial hanya variabel Equitable Distribution Rasio yang berpengaruh positif dan signifikan terhadap profitabilitas. Sedangkan secara simultan Islamic Performance Indeks memiliki pengaruh positif yang signifikan terhadap profitabilitas.