This paper discusses the case study of the impressed current cathodic protection (ICCP) system for jetty of barge loading conveyor (BLC). This impressed current cathodic protection system is corrosion mitigation using an inert anode and an electrical device: rectifier, voltmeter, DC source on the BLC structure, and jetty pile to provide accelerated corrosion protection to parts of the pipe submerged in seawater. In this study, a mapping of the service distribution of inert anode carried out so that it can protect the BLC structure and the pile. The results of the measurement of the structure potential and impressed current cathodic protection (ICCP) at BLC jetty considered to meet the protection criteria according to ISO 15589-2: 2012 standards. The obtained measurement results are in the range between -842 mV to -1197 mV (Ag/AgCl). The results of inspections and measurement of the output of the transformer rectifier show the total output current is safe.

The study evaluated the structural damage of the jetty pile jacket due to the impact load within operation days. The pile jackets on breasting dolphin (BD) were destroyed in front of pneumatic floating fender or leaning back direction. It observed that the failure was due to an impact load perpendicular to the pile and shear load between the floating fender and the pile jacket. The polyolefin material for pile jacket is not designed to hold any impact load from pneumatic fender vertically during docking. The pile jacket was installed to protect against to corrosion attack between tidal and splash zone. While the coal barge is docking on the jetty, the floating fender will crash and push the pile jacket by impact load at about 13.88 ton.m and swing press perpendicular to the breasting dolphin pile or shear load vertically. The installation of rack fender may practically protect the breasting dolphin pile and to back up currently pneumatically floating fender and the jacket pile.

Many strategies can be done by the company when it has an impact/implication, including the main actors in the red brick supply chain network press consisting of five business actors namely suppliers, manufacturers, distributors, retailers, and consumers. Continuous performance measurement is the key to all types of business success, so the purpose of this paper is to review the impact of the entire supply chain on the total effort undertaken, where performance measurement systems in the context of supply chains generate potential avenues for future research especially for new business people to be able to see what things need to be considered when starting a red brick press business. The author has found and classified the supply chain performance measurement system as one method of approach and systematic decision-making techniques. This study reveals that the SCOR Model approach as an indicator of red brick supply chain performance measurement and Analyst Hierarchy Process (AHP) as a decision-making tool can make a real indicator in the implementation of the current red brick business along with the impact on the market so that it is expected to get a solution to declare the effect of the red brick supply chain.

This study discusses the design of a production control board in the home industry. The home industry that implements a response strategy to consumers makes to order, and a production system strategy is a flow shop. The design of the production control board is intended as a tool to see when an order starts and finishes, the position of the order when to accept orders, and the production capacity owned. A home industry that is the object of research is the bag home industry. The research methodology is a case study, and the model used is a modification of the Gantt chart. The design results show the production control board can work as a tool in planning and controlling production activities.

A new class of autonomous underwater vehicle (AUV) is a hybrid underwater glider (HUG) that integrates buoyancy engine and propeller as the main actuator. This kind of vehicle has multi-mode to act that is glider and AUV mode that derive to the mathematical model for the longitudinal and lateral plane. To design steer control of HUG, the mathematical model derives to a linear equation, and the variable controller is rudder for yaw control and main thruster for speed control of HUG. The method of control design is Proportional, Integral and Derivative (PID), there is PD for yaw controller and P for speed controller that are simulated using MATLAB/Simulink to get a response so that we can verify the dynamic model for steering control using waypoint desire. The results demonstrate dynamic response for the lateral plane over waypoint on the surfaces of water.