The overall aim of this research was to use easily obtained materials as an attached growth zone in the treatment of municipal wastewater. Where investigate their performance in the nitrification and denitrification process. were using three identical pilot-scale reactors of the biological aerated filter system BAFs, down-flow mode. Operated at ambient air temperature ranged from 8 ◦C to 29◦C with a mean 17.93 ±7.27 ˚C. While the hydraulic retention time HRT was 12-hours and the influent was 100% recirculation, with daily backwashes. As results of the experiments showed that the greatest mean removal efficiency of the NH₄⁺-N was in the reactor employing activated carbon-based material bed where achieved 90.11%. And then 87.74%, 85.17% respectively for the reactor employing sand-based material bed, and the reactor employing ceramic particle-based material bed. In addition, the pilot-scale reactors of the BAFs were able to nitrify between 0.23±0.22 Kg NH₄⁺-N/m³/day to 0.24±0.21 Kg NH₄⁺-N/m³/day

Visual Questions and Answers (VQA) is a new research task combining computer vision (CV) and natural language processing [1]. Given an image and a natural language problem, it needs to combine the information of the two modes, that is, according to the visual features of the image and the text features of the problem. And then combine the information of the two features to get the right answer. Firstly, the feature extraction method and feature fusion method of visual and text are introduced. Secondly, the effect of attention mechanism on visual question-answering model is introduced. The data set used to train and evaluate the visual question answering system was then reviewed. Finally, we discuss the future direction of the field

In the past few years, deep learning technology has significantly improved image restoration. However, many of these techniques cannot reconstruct reasonable structures because they are usually too smooth and/or blurry. This article develops a new image restoration method that can better reproduce the exquisite details of the filled area. We propose a two-stage adversarial GAN network that includes an edge generator, followed by an image completion network. The edge generator makes the edges of the missing areas (regular and irregular) of the image illusion, and the image completion network uses the illusion to fill the missing areas of the image
Priori edge. We conducted an end-to-end evaluation of the publicly available datasets CelebA, Places2, and showed that it is superior in quantity and quality to the current state-of-the-art technology

The PID controlled algorithm satisfies the control of an induction motor under speed response at constant load, electromagnetic torque response at constant load and three phase stator current at constant load. It demonstrates how to employ SIMULINK tool in MATLAB for effective simulation of a (PID) controller with a specified load. Parameters for the operation were carefully selected as the machine was tuned for optimal performance. The suggested approach has quality traits, including: easy implementation; stable convergence characteristics and accurate performance. Software PID was used to obtain both the initial PID parameters under normal operating conditions and the optimal parameters under specified load conditions. The proposed PID controlled model is tuned according to the ranges of the chosen parameters. In order to prove an outstanding execution of the method, a three phase asynchronous induction motor was modeled in MATLAB environment. The result show that with PID controller the machine has fast reference tracking, steady speed corresponding to the reference speed under load condition with a slight overshoot and low undershoot. The simulated results displayed the potential of the proposed PID controller to be very efficient

The ISO 14001 Environmental Management System is one of the systems widely used by companies in environmental management, one of which is the generation sector in Indonesia. This study aims to examine the application of the ISO 14001 Environmental Management System at PT. PJB PLTU Tanjung Awar-Awar from the financial aspect. This financial feasibility analysis uses data calculations based on the rupiah exchange rate assuming the 2020 State Budget, 5-year program life with an interest rate of 4.50%, which comes from the 2020 BI Rate and 20% MARR (Minimum Acceptable Rate of Return). From this financial analysis, it shows that the results of the calculation of financial feasibility in implementing the Environmental Management System ISO 14001: 2015 are declared feasible to run with the results that are Net Present Value (NPV)> 0 of $ 494,235 and Internal Rate of Return (IRR)> MARR of 97%. This shows that the application of ISO 14001 brings financial benefits for companies that implement it