ABSTRACT Paperboard is a thick and strong paper-based material that has 3 layers, generally used to make products such as packaging, boxes, and covers. In the process of making paperboard, coating is needed as a coating on the paperboard which will provide attractiveness and durability to the paperboard. Coating is a material used to improve the surface quality of paperboard. Quality improveme…
ABSTRACT Eucalyptus is one of the hardwood tree species commonly used in the pulp and paper industry. Pulp itself is wood pulp that is commonly used as raw material in papermaking, which is a thin material produced from the compression of fibres derived from pulp. There are various factors that affect the characteristics of paper, one of which is the wood harvesting age. In this study, the bul…
ABSTRACT This study aims to determine the effect of adding Gmelina as a chip raw material in a continuous digester on the efficiency of the oxygen delignification stage. The Gmelina ratio variations used range from 0% to 15%, with key parameters analyzed including kappa reduction, brightness, and the consumption of chemicals such as alkali charge and oxygen charge during the oxygen delignifica…
Paper grammature is defined as a measure of the weight of a sheet of paper, where paper weight is measured in grams per square meter (gsm) or g/m2. Grammature plays an important role in determining the characteristics of the paper sheet as well as the cutting quality during the cutting process. This final project aims to determine the effect of grammature on cutting quality on folio sheeter mac…
ABSTRACT Size press is a process to improve the quality of the surface properties of sheets by coating using surface sizing and starch. The amount of starch that sticks to the surface of the paper and penetrates into the paper is called size pick up. In this study, the author analyzes what parameters can affect the size pick up value and its relationship to size pick up, this study was conduct…
ABSTRACT The sizing process is an important stage in paper production that aims to improve the surface quality properties of paper, including water absorption, strength, and water resistance. The main chemicals used in the sizing process are native starch and the applicator rod as a means of applying starch to the sheet. These two things greatly affect the quality of the sheet during productio…
ABSTRACT Folio sheeter Machine is a machine that functions to change paper roll into sheets of folio-sized paper which are then stacked on a pallet. Folio paper products that have been arranged on the pallet can be directly packed for bulk orders or sent to the folio sheeter wrapping machine to be wrapped per ream into a ream wrap order. In the process of cutting folio paper, several defec…
ABSTRACT Erosion and sedimentation can reduce the capacity of waterways, so to overcome the problem of sedimentation in irrigation canals, a mud interceptor building is needed. Therefore, in this research, a sandtrap dimension planning is planned. This research aims to design an effective and efficient santrap design in accordance with the existing conditions in the Sei Tibun Dam irrigation ne…
ABSTRACT This study aims to analyze the productivity of heavy equipment in embankment and granular pavement work on Jalan Kampus Universitas Riau. In the construction of road infrastructure, the efficiency and effectiveness of heavy equipment use greatly affect the implementation time and cost of the project. This study compares two alternatives for the use of heavy equipment: the equipment us…
ABSTRACT Excessive use of groundwater will have an impact on reducing groundwater levels. To overcome this, implementing environmentally friendly drainage is one solution to prevent shallowing of groundwater levels. At Annajim Housing, changes in land use will increase surface runoff and reduce water infiltration into the ground, thereby potentially causing flooding and decreasing environmenta…
ABSTRACT Concrete is one of the main construction materials widely used in infrastructure development due to its high compressive strength and good durability. However, achieving optimal compressive strength typically requires a relatively long curing period, approximately 28 days. To address this limitation, admixtures such as Bestmittel are used to accelerate the hardening process and improv…
ABSTRAK In the implementation of excavation work on the Revitalization of Lake Bakuok project in Kampar Regency, heavy equipment assistance is needed to facilitate the work process, one of which is in excavation and soil transportation. The gradual or relay excavation method causes problems such as high equipment efficiency and fuel consumption so that operational costs increase and the du…
This research aims to develop snakes and ladders learning media in history learning, especially material on the Indonesian national movement as an effort to increase the learning motivation of class XI students at SMAN 3 Mandau. This type of research is development research with the ADDIE development model which consists of 5 stages, namely analysis, design, development, implementation and…
Mangroves are important ecosystems that contain various bioactive compounds. Rhizophora mucronata is one of the potential mangrove species, but information on the content of active compounds in its leaves is still limited. This study aims to identify secondary metabolite compounds in ethanol extract of Rhizophora mucronata leaves through qualitative phytochemical tests. The research was conduct…
This study was conducted to identify the types and potential of anoxygenic photosynthetic bacteria (ABF) from Dumai waters, Riau Province as biodegradation agents of solar oil. The study was conducted from January to March 2025. Sea air samples were taken from three different stations in Dumai waters reflecting the port, estuary, and industrial areas, using a purposive sampling method. The proc…
Many students still face challenges in producing high-quality translations. This research is to find out the ability of the third-year students of English department of University of Riau in translating an Indonesian text to English using NAATI Correction Code guide. The researcher used Quantitative research and descriptive approach as the design. It was carried out from August to September 202…
This research focuses on developing an interactive E-Worksheet using Liveworksheets to teach reading recount texts to Grade X students, responding to the limitations of traditional teaching methods. It highlights the need for engaging, technology-based learning tools in line with the Merdeka Curriculum. The E-Worksheet was created and validated through the ADDIE model (Analysis, Design, Develop…
This research addresses the need for effective instructional media in teaching English descriptive texts to X-grade students. The study aims to develop and validate Liveworksheets as interactive instructional media to enhance student engagement and comprehension. Utilizing the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation) the study included need and curriculum anal…
The rapid advancement of digital technologies and the evolving business landscape have motivated MSMEs to engage in digital transformation. Although research on digital transformation in MSMEs is growing globally, there remains a lack of studies that clearly identify the specific types of support that are most critical to the success of this transformation. Therefore, the urgency of this resear…
This study reviews the strategy of Village Officials in handling drug users. This study uses a qualitative method, data collection is done by observation, interviews and documentation. The research subjects are five people who work at the Terantang Village Office. The purpose of this study is to determine the strategy of Village Officials in handling drug users. The results of this study in…