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The inventory problem that still occurs at PT Indonesia Plafon Semesta is the accumulation of resin and calcium raw materials which results in considerable losses. PT Indofon began to experience a buildup of resin raw materials in August amounting to 16,100Kg and for calcium amounting to 15,200Kg so that each month it soared until its peak in October, namely a buildup of 23,500Kg of resin, and 23,200Kg of calcium. The use of the right method for inventory control problems is Just In Time , which is a management strategy used to optimize the production process and product delivery by buying and producing only when needed and at the right time. Silver Meal Heuristic, a heuristic approach used in inventory control to determine the optimal lot size. The quantity of raw material orders using JIT is relatively more than the silver meal, but with JIT the supplier only needs to send 4-5 times, meaning that the company can save costs. The quantity and frequency obtained from data processing using silver meal is more optimal. However, the cost of raw material inventory incurred is quite large. For a decrease in efficiency costs by implementing a policy of making purchases with Just In Time  (JIT) and is expected to save on raw material inventory costs. So that these cost savings can be allocated by the company to other costs.

As a company engaged in ports such as ship services, goods services, container services, passenger services, and various services related to the port and shipping industry, of course, prioritizing good service. Various activities in the work environment have potential risks that must be identified and evaluated. Systematic, thorough, and structured approaches such as Hazard Identification, Risk Assessment, and Determine Control or HIRADC are used to identify problems affecting work processes and risks associated with existing equipment or systems, which can endanger individuals around the port. This research was conducted qualitatively by analyzing the safety risks of workers at ports around Surabaya, East Java. The results showed that there were 7 types of work with 45 hazard risks identified.

Of course, a soccer field needs water and the fertility of the field soil so that the grass can grow. The development of science and technology currently has a big influence on getting work done. A pump is a tool used to move liquids (fluids) from one place to another through pipes (channels) by adding energy to the fluid being moved and continuing continuously. Currently, many water pumps still use the manual method, namely using a switch or even just using a plug. Grass will also live if the soil has appropriate humidity, if the soil moisture level is low, the grass will die if there is excess moisture and it will not be able to grow. This problem certainly requires a solution that can help monitor soil moisture as well as control water pumps. By utilizing NodeMCU ESP8266 microcontroller technology as the control center, the YL-69 sensor measures soil moisture values ​​and also relays as a replacement for manual switches. To control pump conditions via Blynk.

Palembang City Research and Development Bappeda has several main tasks and is carried out by several different fields, one of which is the field of Regional Development Planning, Control & Evaluation which focuses on preparing regional development planning and budgeting, controlling through monitoring regional programs and activities, as well as carrying out evaluations. and reporting on regional development programs and activities. To carry out several main tasks in the PPEPD field, there are several work tools in the form of systems with running business processes, one of which is the Monitoring and Evaluation Information System (SI MonEv) which is used quarterly. Based on the analysis carried out at the Palembang City Research and Development Bappeda, especially in the field of PPEPD with a system that is already running to assist in carrying out tasks, there are several problems found in the process and its use, namely the inaccurate layout of the features and assets in the system interface, which causes a feeling of discomfort. in its use, and there are no features to support ease of use. Therefore, several system design efforts are needed that are able to provide solutions to problems, convenience, and refresh the existing system. This development takes the form of evaluating and designing the user interface on the system to provide refreshment to the interface and adding features to support ease of operation such as graphical data visualization to simplify the monitoring process, a search feature to simplify the process of searching for reports, notifications to provide notification of each entry of the latest report in order to avoiding missing information, and providing a deadline feature to minimize delays in the reporting process.

Various styles of decorative lights and forms of lighting will greatly influence the exoticism of the outside of the building, the presence of garden lights can be an option to create romance. Garden lights are an important element in creating an atmosphere that is not only beautiful, beautiful, but also full of high aesthetic value. Basically, garden lights not only play an important part in providing garden light or help provide lighting when walking in the garden at night and also provide a different atmosphere, especially adding lots of light points so that the spotlight will give a unique light image, thereby creating an atmosphere. around the park becomes beautiful and safe. Technological advances are increasingly rapid, making human life easier and more practical, one of these technological advances is microcontroller technology. The use of microcontrollers has recently expanded to all fields, its use is not only in the field of computers, but has also been used in other electronic equipment, for example devices that we see every day, such as cell phones, televisions, washing machines and even all the way to space instruments. The microcontroller itself is an electronic component which, when given input data, processes the input data, and then produces output from the processed data so that it can turn on the output on the microcontroller connected to the garden lamp.  

The rapid expansion of construction activities has led to increased concrete consumption, resulting in excessive exploitation of natural aggregate resources and growing environmental concerns. To mitigate this issue, ceramic waste has been investigated as an alternative material in concrete production. This study examines the effect of ceramic waste powder used as a filler on the workability and compressive strength of concrete. Ceramic waste powder was applied as a partial replacement for fine aggregate at proportions of 0%, 15%, 25%, 35%, and 45%. The concrete mixtures were produced using Ordinary Portland Cement Type I, natural sand, crushed stone as coarse aggregate, and potable water, all conforming to Indonesian National Standards (SNI). Workability was assessed through slump tests in accordance with SNI 1972:2008, while compressive strength tests were performed on cylindrical specimens at 28 days following SNI 1974:2011. The compressive strength for each mixture was determined from the average of three specimens. The results show that increasing ceramic waste content slightly reduced slump values, from 17.20 cm in the control mix to 16.60 cm at 45% replacement, although all mixtures met the required workability standards. A gradual decrease in compressive strength was also observed, from 17.79 MPa to 16.65 MPa at the highest replacement level. However, this reduction was not significant, indicating that ceramic waste powder can be used in normal-strength concrete without substantially affecting performance. The utilization of ceramic waste therefore represents a sustainable alternative to reduce natural aggregate consumption while maintaining acceptable concrete properties.