Characteristic Analysis and Experiment of a Flow Distribution Valve

The comprehensive characteristics of flow distribution valve in water system are analyzed. The flow balance valve can change the drag efficient according to the condition of system, and can measure the flowrate. The structure of the flow distribution valve is introduced, and the theoretical calculation formula for the regulating valve are derived. A rated flowrate from 10.65m3/h to 20.48m3/h are offered in the numerical work. Fluent CFX analyses show good behaviours: through the benefits of V-ball valve good linearity and regulation characteristics, when the valve throttling, the system flow can maintain a relatively stable state, it can be conducived to improve the measurement accuracy of the distribution valve. The experimental results show that the measure accuracy is less than 5.8%.

Development of a Basic Educational Kit for Robotic System with Deep Neural Networks

In many robotics studies, deep neural networks (DNNs) are being actively studied due to their good performance. However, existing robotic techniques and DNNs have not been systematically integrated, and packages for beginners are yet to be developed. In this study, we proposed a basic educational kit for robotic system development with DNNs. Our goal was to educate beginners in both robotics and machine learning, especially the use of DNNs. Initially, we required the kit to (1) be easy to understand, (2) employ experience-based learning, and (3) be applicable in many areas. To clarify the learning objectives and important parts of the basic educational kit, we analyzed the research and development (R&D) of DNNs and divided the process into three steps of data collection (DC), machine learning (ML), and task execution (TE). These steps were configured under a hierarchical system flow with the ability to be executed individually at the development stage. To evaluate the practicality of the proposed system flow, we implemented it for a physical robotic grasping system using robotics middleware. We also demonstrated that the proposed system can be effectively applied to other hardware, sensor inputs, and robot tasks.

Research on the Nonlinear Characteristic of Flow in the Electro-Hydraulic Servo Pump Control System

In an electro-hydraulic servo system, the system flow is used as an intermediate variable to control the output displacement/force/speed of the actuator, and it plays the role of a medium for energy transmission and conversion. Therefore, the control of the system flow is the essence of state control for the system actuator. The purpose of this paper is to study the non-linear characteristics of pump control system flow and pave the way for high-performance control of the system. Based on the flow partition idea, the system output flow is divided into the dead zone, load zone, and saturation zone. We establish a mathematical model of the hydraulic system to analyze and study the effect of the nonlinear characteristics of the servo motor and the positive displacement pump on the system flow partition characteristics. We focus on the effects of the positive displacement pump shear flow internal leakage, pressure difference flow internal leakage, oil compression, servo motor rotation friction, and servo motor torque reserve rate on the system flow output, and analyze the partition characteristics of the system flow under different working conditions. We provide a theoretical basis for a high-precision control strategy for a hydraulic system.

ANALISI SISTEM PENJUALAN ANALISI SISTEM PENJUALAN PEMASARAN PRODUK PADA PT.PANASONIC GOBEL INDONESIA CABANG MEDAN

Panasonic Gobel Indonesia is a company that is active in the sale and marketing of electronic goods for the needs of the public and business. The company cannot be separated from the sales process. Selling is an activity or a business selling products, which is an activity aimed at finding buyers, influencing, and prioritizing buyers so that purchases can match the desired goods. However, the authors here limit the discussion to only focus on the sale (marketing) of goods between dealers and companies both in terms of product input. Therefore, the author aims to analyze the sales process and marketing of goods at PT. Panasonic Gobel Indonesia. When analyzing and collecting data on sales of goods was made, a case was discovered in PT. Panasonic Gobel Indonesia Medan Branch is still experiencing problems in terms of sales of goods, and also errors in inputting product data which result in having to apply repetitive processes for inputting product sales data, and also too many process codes that must be understood by employees in inputting data. Therefore, the authors decided to analyze the product sales application system through a flowchart that can make it easier for employees to do their jobs. That way a product sales application system flow is created which is implemented in the form of a flowchart. With the flow chart so that human errors can be minimized to facilitate employees in sales performance at PT. Panasonic Gobel Indonesia Medan Branch. Keywords: analysis, system, sales flow chart, SAP

Optimizing facility siting for probabilistic collection and distribution of information in support of urban transportation

Collecting and receiving information about the state of a transportation system is essential to effective planning for intelligent transportation systems, whether it be on the part of individual users or managers of the system. However, efforts to collect or convey information about a system’s status often require considerable investment in infrastructure/technology. Moreover, given variations in the development and use of transportation systems over time, uncertainties exist as to where and when demand for such services may be needed. To address these problems, a model for minimizing the cost of siting and/or collecting information while ensuring specified levels of demand are served at an acceptable level of reliability is proposed. To demonstrate the characteristics of the proposed formulation, it is coupled with another planning objective and applied to identify optimal sites for information provision/collection in a transportation system. Model solutions are then derived for multiple scenarios of system flow to explore how variations in the use of a transportation system can impact siting configurations.

European Science Editing is in full open access now

I am excited to announce that with this volume European Science Editing (ESE) has shifted from the print to a fully digital open access version. The journal underwent several changes last year. First of all, our publisher, the European Association of Science Editors (EASE) was generously offered – and accepted – a new ARPHA submission system (powered by PenSoft). Together with the EASE president Pippa Smart and EASE Council, we decided to transform ESE into a fully open access online journal. After several months of planning and re-thinking our strategy, a small working group (some members of the EASE Council and of ESE’s associate editors) prepared a proposal, the main idea of which was to divide the journal in two overlapping publications: European Science Editing and EASE Digest. The former will continue to publish original articles, reviews (formerly “essays”), viewpoints, and correspondence using the fully open access ARPHA submission system (flow publishing) but will drop the other sections, namely News notes, The editor’s bookshelf, This site I like, and EASE Forum Digest). These sections, which our readers consider particularly valuable, will now be published in EASE Digest with a few selected articles from ESE. The Digest will be available to EASE members only. As the proposal was accepted by the EASE Council in September 2019, the journal’s transformation is already under way. I wish to thank Silvia Maina (This site I like), Fiona Murphy (Book reviews), Elise Langdon-Neuner (EASE-Forum Digest), Anna Maria Rossi (The Editor’s bookshelf), and James Hartley and Denys Wheatley (members of the International Advisory Board) for the great work they have done and for their cooperation.