Development of an FPGA-based gate signal generator for a multilevel inverter

The application of Field Programmable Gate Array (FPGA) in the development of power electronics circuits control scheme has drawn much attention lately due to its shorter design cycle, lower cost and higher density. This paper presents an FPGA-based gate signal generator for a multilevel inverter employing an online optimal PWM switching strategy to control its output voltage. FPGA is chosen for the hardware implementation of the switching strategy mainly due to its high computation speed that can ensure the accuracy of the instants that gating signals are generated. The gate signal generator has been realized by an FPGA (FLEXlOKZO) from Altera. The design and development of the FPGA based gate signal generator is described in detail. Results from the timing simulation using MAX+PLUSII software are given and verified by the results obtained from the FLEXlOK2O output

A whole-health-economy approach to antimicrobial stewardship: Analysis of current models and future direction.

Antimicrobial stewardship (AMS) strategies are widely implemented in single healthcare sectors and organisations; however, the extent and impact of integrated AMS initiatives across the whole health economy are unknown. Assessing degree of integration of AMS across the whole health economy and its impact is essential if we are to achieve a ‘One Health’ approach to addressing antimicrobial resistance (AMR), and therefore we searched systematically for and analysed published examples of integrated AMS initiatives to address this gap. Application of a system-level framework to analyse integration of AMS initiatives across and within healthcare sectors shows that integration is emerging but needs strengthening. Findings from a small number of evaluations in high-income countries suggest that antimicrobial prescribing and healthcare-associated infections can be reduced using a multisectoral integrated AMS approach. More robust research designs to evaluate and understand the impact of multisectoral integrated AMS are needed, particularly with respect to differing health systems in different countries and local organisational contexts. Our analysis highlights a number of challenges and ways forward for enhancing the delivery of AMS through an integrated approach

Phase-Fitted and Amplification-Fitted Higher Order Two-Derivative Runge-Kutta Method for the Numerical Solution of Orbital and Related Periodical IVPs

A phase-fitted and amplification-fitted two-derivative Runge-Kutta (PFAFTDRK) method of high algebraic order for the numerical solution of first-order Initial Value Problems (IVPs) which possesses oscillatory solutions is derived. We present a sixth-order four-stage two-derivative Runge-Kutta (TDRK) method designed using the phase-fitted and amplification-fitted property. The stability of the new method is analyzed. The numerical experiments are carried out to show the efficiency of the derived methods in comparison with other existing Runge-Kutta (RK) methods

PRODUCTIVITY IMPROVEMENT OF ONION (ALLIUM CEPA L.) UNDER AGRO- CLIMATIC CONDITIONS OF MANSEHRA, PAKISTAN

The present study was conducted to investigate the effect of various levels of NPK fertilizers on the yield  and yield contributing factors of onion.Treatments includes namely T1(00-00-00),T2(25-25-12.5),T3(50-50-25),T4(75-75-37.5)and T5(100-100-50) NPK kg/ha. All P and K fertilizer was applied as basal dose while Nitrogen was applied in split doses.  The variety used in the study was Swat-1. Data revealed that at harvest maximum plant height of 53.8cm, No. of leaves/plant (7), No. of roots/plant (95), No. of bulb/plot ( 221), fresh weight/bulb (127.7g), bulb size (6.4 cm),  and yield of 24.92 tons/ha were recorded in treatment T5 provided 100-100-50 NPK kg/ha followed by plant height of 52.2cm, No. of leaves/plant (6), No. of roots/plant (83),  No. of bulb/plot(156) , fresh weight/bulb 118g , bulb size 5.7cm,  and 23.87 tons/ha yield   in treatment receiving 75-57-37.5NPK kg/ha. The minimum plant height of 46.3 cm, No. of leaves/plant (5), No. of roots/plant (55), No. of bulb/plot (114), fresh weight/ bulb (103.5 g) bulb size (5.05cm) and yield of 17.80 tons/ha was recorded in control plot  (without NPK). Results indicates that NPK @100-100-50 kg/ha proved to be the optimal dose of fertilizer to get maximum yield of onion

Antioxidant and antityrosinase activities of piper maingayi HK. Essential oils

The study was aimed to investigate the chemical components of stem and fruit volatile oils of Piper. maingayi Hk. with their antioxidant and antityrosinase activities. GC and GC-MS analysis of the essential oils obtained from the fresh stem and fruit of P. maingayi Hk. resulted in the identification of 34 and 18 components accounting for 83.6% and 78.7% of the total amount, respectively. Sesquiterpene hydrocarbons and oxygenated sesquiterpenes were the most highly represented classes as the former ranging from 64.7% to 70.7%, and the latter varying from 7.4% to 8.6%. The main constituents of the stem oil were: α-caryophyllene (26.2%), α-cedrene (8.4%), caryophyllene oxide (6.7%) and cis-calamenene (6.2%), while the fruit oil was dominated by δ-cadinene (22.6%), β-caryophyllene (18.8%), α-copaene (11.2%) and α-cadinol (7.1%). The stem and fruit of P. maingayi oils showed significant value for antioxidant and antityrosinase activities

Sistem Informasi Penjualan Sandal Berbasis Web

Toko Cucko Bandung adalah sebuah USAha yang bergerak dalam bidang penjualan sandal cucko yang beralamat di jalan leuwi Anyar VI , Kota Bandung – Jawa Barat. Toko Cucko ini menyediakan berupa penjualan sandal dan dapat menerima pemesanan sandal sesuai keinginan konsumen, dari model sandal ,warna sandal dan ukuran. Permasalahan saat ini pada Toko Cucko Bandung adalah dalam penjualan, mempromosikan dan pemesanan masih dengan manual ,hal ini kurang efektif karena tidak ada informasi yang detail mengenai sandal pada toko cucko untuk komsumen. Proses pemesanan yang sedang berjalan pada toko cucko bandung masih menggunakan via bbm, whatshap atau datang lansung ke tempat, hat tersebut masih kurang efesien. Pencatatan dan pengecekan data – data transaksi, data pelanggan, data barang ,masih dilakukan dengan manual dalam arsip dokumen tertulis, kehilangan data masih besar kemungkinan akan rentan terjadi.Metode penelitian yang digunakan adalah dengan wawancara, dokumentasi dan observasi. Adapun metode pendekatan sistem yang digunakan adalah Struktur dengan menggunakan Flowmap sebagai alat bantu untuk merancang sistem yang akan dibuat dengan metode pengembangan sistem ini adalah prototype. Pembangunan Sistem Informasi Penjualan sandal ini menggunakan PHP sebagai Bahasa pemrograman dan XAMPP sebagai database. Dengan adanya Sistem Informasi berbasis Website diharapkan dapat mempermudah proses pelayanan penjulan, pemensanan dan pengolahan data pada Perusahaan ini

Peningkatan Hasil Belajar IPA dengan Index Card Match Materi Sifat Bahan dan Kegunaan Benda

Intention of this research is to know do applying of model study of Index of Card Match can improve motivation learn and student creativity at study of Natural Sciences in SDN 13 SP3 Trans Nobal. This Research is research of class action (Classroom Action Research) including planning, execution, and observation of refleksi. This research take place during 2 cycle. Technique intake of data pass/through observation sheet and student creativity, tes result of learning and documentation. Applying of Index method of Card Match started by preparing RPP, preparing card, picture media, student observation sheet and tes. Applying of Index method of Card Match can improve result learn student[at Natural Sciences items subject ofis Nature of Materials and Usefulness of Object in class of IV SDN 13 SP3 Trans Nobal District of Belimbing, this matter can be seen from complete learn at cycle pre there is 7 student or 35% with class average value 57, cycle of I there is 14 student or 70% with class average value 72 and cycle of II there is 20 student or 100% with class average value 83

A novel Multi-permittivity Cylindrical Dielectric Resonator Antenna for Wideband Applications

In this paper, a novel multi-permittivity cylindrical dielectric resonator antenna for wideband application is presented. The multi-permittivity cylinder is formed by combining two different permittivity material sectors in such a way that each sector (with constant permittivity) is 90 degree apart. A direct microstrip line coupling terminated with T-stub at the open end is used to excite the multi-permittivity cylindrical dielectric resonator. The angular position of the multi sector dielectric resonator with respect to the longitudinal axis of the microstrip line and length of the additional strip at the open end of the feeding circuit is key parameters for wideband operation of the antenna. By optimizing all parameters of the proposed antenna, wideband impedance bandwidth of 56% (12.1 GHz - 21.65 GHz) is achieved. The average gain of the antenna throughout the bandwidth is 5.9 dB with good radiation properties in both E-plane and H-plane. A well matched simulation and experimental results show that the antenna is suitable for wideband applications

Isu dan Tantangan Kompetensi Dewan Pengawas Syariah di Indonesia

This study aims to discover and know the issues and challenges the competence of the shariah supervisory board in Indonesia. Given the inequality between sharia accounting competence. The discussion of this study will combine engineering library research with interviews with practitioners and academics who work in auditing sharia. The results of this study discovered that there are three issues related to the competence of shariah supervisory board in Indonesia, which is, 1) Unbalance the competency of the shariah supervisory board in accounting and finance with competence in the field of sharia, 2) Certification shariah supervisory board in Indonesia has not been optimal, 3) Still lack a college that provides programs of study sharia accounting so that the shariah supervisory board there is still limited. Referring to the issue of the things that are a challenge related to the competence of auditors of sharia in Indonesia, which is, In terms of the challenges of 1) Upgrading the competence of the shariah supervisory board, 2) Cooperation between DSN-MUI with the FSA in creating shariah supervisory board certification, 3) Educational institutions are able to meet the needs of related industries shariah supervisory board

The establishment of minimum luminous range for existing lighthouses in the age of global navigation satellite system by limiting the luminous range within geographical range

Long range marine aids to navigation is not required by current marine navigational practice, therefore luminous range of lighthouses should be reduced. The objective of this study is to determine a minimum luminous range for major lighthouses. The minimum luminous ranges is determined by conducting two steps, namely by modifying the existing geographical range formula and determine a strong linear correlation between light intensity and luminous range with the lowest gradient as possible in a linear graph. The application of minimum luminous range would eliminate the loom of light beyond the lighthouse's geographical range, which is not necessary for current navigational practice. This method is applied to seven major lighthouses in Peninsular Malaysia, which resulted minimum luminous range that ranging from 12.2 nm to 14 nm. The existing luminous ranges of these lighthouses are ranging from 18 nm to 25 nm. These new minimum luminous ranges are sufficient for mariners who primarily rely on GNSS, reduce service provider operational cost and may sustain lighthouses operation in the future