Design of Reservation Information System Rahmatya, M D; Wicaksono, M F; Sari, D P ...
IOP conference series. Materials Science and Engineering,
07/2020, Letnik:
879, Številka:
1
Journal Article
Recenzirano
Odprti dostop
The objective of this research is to design reservation information system. The system approach method was used to analyze the system is an object-oriented approach and the system development method ...used is the waterfall. The system was designed not only as a promotional medium but also as an information system that allows customers to make a reservation for event locations and payments through the website. Therefore, the result of this study can help customer to have adequate information about the tourist site and make a reservation anytime and anywhere.
Substitution of copper by iron in the charge reservoir block of the YSr2Cu3O6+δ (YSCO) cuprate superconductor brings out an appealing insight on the interplay between superconductivity and magnetism. ...In the resulting FeSr2YCu2O7+δ (Fe-1212) materials, FeO1+δ layers and CuO2 bi-layers are alternated along the stacking direction, in close analogy to the RuSr2GdCu2O8 (Ru-1212) ferromagnetic superconductor. For the FeSr2YCu2O7.57 compound, both BVS calculations and spectroscopic data reflect a high doping level in the superconducting planes of pCuO2 ∼ 0.30, placing this cuprate on the overdoped region of the conventional phase diagram for cuprate superconductors. Nonetheless, iron cations in the charge reservoir block (CRB) are quite oxidized, reaching a high formal oxidation state of Fe3.6+. This highly doped FeSr2YCu2O7.57 cuprate is superconducting below Tc = 30 K and, from our muon spin relaxation spectroscopy (μSR) study, the presence of magnetic interactions has been substantiated. Most interestingly, the coincidence of the onset of the magnetic interactions with the superconducting critical temperature suggests a complex interplay between magnetism and superconductivity in this overdoped cuprate.
Digitalization in industrial revolution 4.0 era has many impacts towards all aspects of life. Massive technology advancement shifts industrial demands in Indonesia from quantitative to qualitative ...demands. These qualitative demands can be interpreted that today's industry workforce not only need technique competencies but also must have good Computational Thinking (CT) which is the pillar of collaboration, communication, creativity, and problem-solving skills. This issue did not balance with the enhancement of cognitive skills of Indonesians, especially youth or millennial generation. Millennial generation required to overcome multilevel challenges to improve thinking skills particularly on individual level. The low level of intrinsic motivation in using computational thinking to solve its problem became one of millennial culture characteristics. One of the solutions is cultivate student's intrinsic motivation to use CT by utilize Ikigai concept on teaching and learning activities from early grade. The Ikigai role as motivation template has been endure for millennia and proven, if used properly, to be most important factor that help eastern culture people achieve self-actualization. This study aims to develop instructional design that include Ikigai concept to support the achievement of intellectual competencies. Product development is done by Research and Development (R&D) Method with Akker procedure scheme. Product expected to improve students CT in accordance to standard needed in industrial 4.0 era. At this point, we currently at Empirical Testing phase. As expected, we got good response from teacher for product's ease of use and provide clear assessment of students CT Skills. Student that can be described as skilled programmer often have poor communication or collaboration skills with societies. However, when the students have clear life-goal, those lack of social skills are gradually improved. Otherwise, student with good social skills but has poor technique (coding), become more motivated to pursue computing knowledge.
Regulation plays an essential role in handling electronic waste. Indonesia's electronic waste management system is still at the lowest level because it is still limited to informal initiatives. When ...making regulations, we should consider informal channels by collaborating with formal channels. Informal channels are given space for secondhand product sales and repairs, while formal channels focus on waste collection and recycling. Secondhand products still have a potential market. This study aims to analyze the relationship between demographic variables to purchasing decisions of secondhand smartphones and the factors that influence the purchasing decisions of secondhand smartphones. The survey was conducted on 328 smartphone users in Indonesia, in which 143 of them are consumers of secondhand smartphone products. The data was processed using the chi-square test and multiple regression analysis with SPSS version 22 software. Data processing shows that purchasing decisions of secondhand smartphones are related to demographic variables, gender, and education level and are also significantly influenced by product price, income, and product quality. The product diversity factor does not significantly influence purchasing decisions.
Abstract
The increase in Vannamei shrimp farming is closely related to an increase in the demand for shrimp feed. At present there are many technological developments in cultivating natural feed. The ...natural feed here refers to plankton which can be used as natural food for every organism of larvae in waters. Conditions in water will affect the distribution pattern of phytoplankton either horizontally or vertically. As a result, it affects the abundance of phytoplankton and subsequently also affects the value of the main productivity. The purpose of study is to find out the cultivation process and to find out the types of plankton that exist in Vannamei shrimp farming ponds. Plankton observations were carried out directly with the help of a microscope and haemocytometer, while the measurement of water quality using each instrument had been prepared for each parameter. The results of plankton observations found species of
Chaetoceros sp., Oocystis sp., Oscillatoria sp
. and
Cyclotella sp
. while the water quality measurements obtained temperature (29-31°C); DO during the day (7.6-9.5 ppm) and at night (4.0-4.6 ppm); pH in the morning (7.8-8, 5) and daylight (8.1-9.0); and salinity 26-27 ppt. The application of probiotics used carbon sources derived from molasses and katul.
Construction projects have quite a number of risks that can have an impact on the objectives of the project such as cost, time and quality. Good risk management is very important for the success of a ...project. The Amartha View Apartment development project experienced a variety of problems that affected the smooth running of the project, including late payments from the owner, late material shipments, and delays in achieving project achievement targets. Because of the existence of these various problems, the researcher intends to conduct research with the aim of identifying the risks that have been and may occur in the project, then conducting a risk assessment. Then classify risk allocation, and provide a control strategy (response) to critical risks. Research begins with identification of risks in the project, then evaluates the risks that have been identified. The method used in risk assessment is relative importance index. After conducting a risk assessment, then determining the response strategy that can be carried out on risks with a high category. Determination of response strategies using the bow tie analysis method that will produce a bow tie diagram. There were a total of 3 risks included in the high category including delays in obtaining road access, restrictions on vehicle hours and location delays.
This research analyzed the levels of disaster risk in the Citeureup sub-District, Bogor Regency, West Java, based on its potential hazard, vulnerability and capacity, using map to represent the ...results, then Miles and Huberman analytical techniques was used to analyze the qualitative interviews. The analysis conducted in this study is based on the concept of disaster risk by Wisner. The result shows that the Citeureup sub-District has medium-low risk of landslides. Of the 14 villages, three villages have a moderate risk level, namely Hambalang, Tajur, and Tangkil, or 49.58% of the total land area. Eleven villages have a low level of risk, namely Pasir Mukti, Sanja, Tarikolot, Gunung Sari, Puspasari, East Karang Asem, Citeureup, Leuwinutug, Sukahati, West Karang Asem West and Puspanegara, or 48.68% of the total land area, for high-risk areas only around 1.74%, which is part of Hambalang village. The analysis using Geographic Information System (GIS) prove that areas with a high risk potential does not necessarily have a high level of risk. The capacity of the community plays an important role to minimize the risk of a region. Disaster risk reduction strategy is done by creating a safe condition, which intensified the movement of disaster risk reduction.
This study aims to develop student worksheets for higher education that apply integrated science learning in discussing issues about motion in humans. These worksheets will guide students to solve ...the problem about human movement. They must integrate their knowledge about biology, physics, and chemistry to solve the problem. The worksheet was validated by three experts in Natural Science Integrated Science, especially in Human Movement topic. The aspects of the validation were feasibility of the content, the construction, and the language. This research used the Likert scale to measure the validity of each aspect, which is 4.00 for very good validity criteria, 3.00 for good validity criteria, 2.00 for more or less validity criteria, and 1.00 for not good validity criteria. Data showed that the validity for each aspect were in the range of good validity and very good validity criteria (3.33 to 3.67 for the content aspect, 2.33 to 4.00 for the construction aspect, and 3.33 to 4.00 for language aspect). However, there was a part of construction aspect that needed to improve. Overall, this students' worksheet can be applied in classroom after some revisions based on suggestions from the validators.
In the era of big data and internet of things (IoT) revolution, it is possible to observe some variables for an object in real time, e.g. sensor data obtained from one or more sensor devices. In ...addition to extrapolate these data simultaneously, the other hot issue is how to use these data for classifying some variables into some groups, respectively. Multivariate time series classification (MTSC) analysis provides various models to represent this problem according to its characteristics. In this paper, we tried to summarize state-of-the-art methods for MTSC analysis complete with their strengths and weaknesses. Furthermore, we also focused on some limitations from previous research for developing MTSC analysis in the future.
Abstract Recently, seaweed-based capsule shells have become more popular because of their reliable quality and animal-free source. But these shells’ prolonged disintegration times are a common ...problem. This research aims to look for formulations with disintegrant substitution or a combination of several disintegrants to obtain capsule shells that disintegrate quickly. Several studies have explored the incorporation of additional disintegrants such as Polyvinylpyrrolidone (PVP) K-30, Sodium starch glycolate (primogel), Croscarmellose sodium (SSC), and Sodium carboxymethylcellulose (Na-CMC) to address this challenge. The study investigates various combinations of disintegrants in the formulation of capsule shells to achieve rapid disintegration time. The variation in composition of disintegrants was determined using Simplex Lattice Design (SLD) in Design Expert® 13.0.12. Balancing the desirable characteristics of quick disintegration with other factors posed a significant challenge. All types of disintegrants exerted a notable influence on the response variables. To achieve a substantial reduction in disintegration time, the utilization of primogel is strongly recommended. However, it should be noted that primogel contains minerals that do not disintegrate, resulting in an elevated ash content. In contrast, PVP K-30 demonstrates promising performance but falls slightly short of primogel’s efficacy in accelerating disintegration. Additionally, PVP K-30 exhibits a marked advantage in minimizing ash content within the capsule shell. Optimization results indicate that a combination of PVP K-30 and primogel yields a capsule shell with the fastest disintegration time, approximately 23.908 minutes, while maintaining a minimal ash content of 10.487%.
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