11 research outputs found
Greenpeace's role in pressuring the india government to overcome air pollution 2015-2018
No full textThis study aims to explain the strategies of Greenpeace in pressuring the Indian government to overcome air pollution immediately that occurred in the country in 2015-2018. Based on WHO reports, India is known to be one of the countries with very high levels of air pollution in the world. Air pollution is a significant environmental problem in India and has caused various health problems to the death of its people. Greenpeace as an international organization whose aim is to protect the environment strives to help people express their aspirations to the government to immediately take proper actions related to air pollution in the country in various ways, such as campaigns and protest actions. Using the concept of NGO to look at Greenpeace's way of inviting the public to get involved in its activities, then using the concept of the Transnational Advocacy Network to find out Greenpeace's strategy in suppressing the Indian government
Acid Removal From Saline Media
No full textNaphthenic acid (NA) is also known as organic acid within the crude. The
presence of NA is a major concern in oil and gas industry due to its ability to cause
corrosion. The corrosion cause by NA can damage the production and refinery
equipment as well as transportation and storage facilities in oil and gas industry. The
concentration of acid in the crude can be determined by the value of Total Acid Number
(TAN).
In this project, the author used crude oil provided by PETRONAS for
experiments. The author will study on the rate of acid extraction using Ionic Liquid (IL).
Ionic liquids refer to salt exist in a liquid state over a wide range of temperature. In this
project, the author used two different based IL to extract acid in the crude oil sample.
Other than that, the author used different sea water volume to study its effect. The
project started by doing some research on journal and research paper which related to
the topic investigated. In order to obtain result and confirmation regarding the
hypothesis or theory made a lot if lab work and experiment are done. There are (3) three
main processes involve in this project; Reaction, Extraction and Settling (R: E: S)
process. The experiments are done under various parameters to study the effect of
varying the parameters on extraction efficiency. Under these parameters set-up and
chemicals used, the author will study the rate of acid removal from saline media.
The results of this project show that ionic liquid can be used to extract organic
acid from the crude oil. The extraction efficiency is ranging from 50% - 80%. Other than
that, increase in salinity’s concentration show decrease in TAN of crude oil. The acid
extraction is proven to be more efficient under specific parameters; solvent as the
solvent, time taken for R: E: S process is 30:60:60 and 800 rpm. Based on the gas
chromatography result, the amount of hexanoic acid extracted is more than dodecanoic
acid
Optimasi Pemilihan Supplier dan Alokasi Supply Batubara Pada PLTU Kapasitas 615MW dengan Menggunakan Metode Analytical Hierarchy Proces dan Goal Programming (Studi Kasus PT.XYZ).
No full textSupplier merupakan salah satu mitra bisnis yang memegang peranan dalam menjamin ketersediaan barang pasokan yang dibutuhkan oleh perusahaan. Pada perusahaan yang baik dan sehat ketika kondisi supplier tidak sedang baik maka perusahaan tidak terlalu mendapatkan kerugian. Pemilihan supplier sendiri merupakan salah satu kegiatan strategis bagi perusahaan dalam proses bisnisnya apabila supplier memasok barang barang yang kritis dan dalam jangka waktu yang panjang bagi perusahaan sehingga perusahaan harus dapat mempertimbangkan dengan baik pemilihan supplier tersebut.
Dalam mengatasi masalah tersebut, penulis mencoba mengimplementasikan pendekatan analytical hierarchy process dengan goal programming dengan terintegrasi, sehingga dapat menghasilkan hasil yang baik dalam pemilihan supplier dengan kriteria lebih dari satu, sesuai dengan kriteria yang telah ditentukan oleh perusahaan.
Pada hasil penelitian didapatkan bukti bahwa metode AHP dapat digunakan dengan baik untuk membantu proses pemilihan supplier dengan 3 kriteria dan 7 subkriteria. Luaran selanjutnya dari penelitian ini ialah alokasi supply batubara yang dipasok supplier pada perusahaan dan sesuai dengan target biaya minimum, waktu pengiriman minimum, dan kualitas batubara yang optimal. Hasil proses pemilihan supplier dengan menggunakan metode AHP didapatkan hasil 3 terbaik dari 12 supplier dengan nilai pada PT. H sebesar 81.6, PT F sebesar 80.2, dan PT. I sebesar 79.6. Dalam jangka waktu satu tahun PT. H mendapatkan alokasi supply sebesar 3000000 ton, PT. F sebesar 500000 ton, dan PT. I sebesar 500000 ton.
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Supplier is one business partner that plays a role in ensuring the availability of supply goods required by the company. In a good and healthy company when the condition of the supplier is not being good then the company is not too get a loss. Supplier selection itself is one of the strategic activities for the company in its business process if suppliers supply critical goods and in the long term for the company so the company should be able to consider well the selection of suppliers.
In solving the problem, the author tries to implement analytical hierarchy process approach with integrated programming goal, so it can produce good result in supplier selection with criteria more than one, according to criterion which have been determined by company.
In the research results obtained evidence that the AHP method can be used well to assist the selection process suppliers with 3 criteria and 7 subcriteria. The next result of this research is the allocation of coal supply supplied by the supplier to the company and in accordance with the minimum cost target, minimum delivery time, and optimal coal quality. The result of supplier selection process using AHP got 3 best result from 12 supplier with value at PT. H of 81.6, PT. F of 80.2, amd PT. I 79.6. Within a period of one year PT. H get supply allocation of 3000000 tons, PT. F of 500000 tons, and PT. I 500000 tons too
ANALISA PENULANGAN KONSTRUKSI GEDUNG SATU BASEMEN EMPAT LANTAI
No full textBased on the artifact drawing in the appendix, it discusses structural planning where only drawings are produced in planning and there is no reinforcement plan which is an important element in the construction of a building in order to produce a strong, safe and economical building. Therefore, the author discusses the reinforcement of the structure. To achieve the planning objectives, structural planning must follow the regulations set by the government in the form of the Indonesian National Standard (SNI). Planning of the building that has been determined so that the strength and safety factors of the building can be achieved and there is no collapse in the planned building. The results of the analysis of a four-story basement office building from the calculations obtained the same results in calculations using the SAP 2000 and SNI programs 03-2847-2002, therefore the reinforcement obtained is accurate, namely the results of the SAP 2000 and SNI programs 03-2847-2002 . The results of planning a four-storey office building from several planned variations obtained a total net concrete area, namely variation 1 of 14800.96 cm², variation 2 of 15172.1 cm², variation 3 of 11297.69 cm² and variation 4 experiencing structural failure. From these results it can be concluded that the safe and economical variations of beams, columns are variation 3 where the dimensions are B1 (30 cm x 40 cm), B2 (15 cm x 25 cm), K1 (50 cm x 50 cm), K2 (45 cm x 45 cm), K3 (40 cm x 40 cm), K4 (35 cm x 35 cm
Sistem Informasi Peminjaman Buku Berbasis Web Pada Perpustakaan SMPN 1 Sawoo
No full textSchool libraries have a vital role in supporting learning activities as part of the educational process. At SMPN 1 Sawoo, the library acts as a reference source for students to strengthen their understanding of the subject matter taught by the teacher. However, the process of borrowing books in this library is still done manually, causing greater use of time and energy. To overcome this, the author developed a structured and web-based library information system application, enabling the book borrowing process to be easier and can be accessed flexibly. The Waterfall Method approach was used in developing this web-based book lending information system, through the stages of needs analysis, system design, implementation, testing and maintenance. This information system was developed using the Hypertext Preprocessor (PHP) programming language, with a Web Server using XAMPP. Coding was carried out using Visual Studio Code and design using the Code Igniter Framework, with data stored in the MySQL Database. This application can be accessed via Web Browsers such as Mozilla Firefox and Microsoft Edge. The research results show that this library information system is suitable for use and functions according to its purpose after passing the Black Box and SUS (System Usability Scale) tests which show a percentage score of 79. From these results, the implementation of the library system is expected to improve library services at SMPN 1 Sawoo
Sistem Informasi Rekrutment Freelancer Berbasis Web Dengan Metode Scrum
No full textThe development of the times is directly proportional to the development of technology in the world, this affects the way a business entity meets the needs of human resources to complete a project being worked on. Freelancers or freelancers are one solution for project owners who want employees to meet their human resource needs. The higher the number of freelancers looking for makes the number of freelancers increase for various reasons, this creates many obstacles in the world of freelancers. Based on this information, this research was conducted to answer the problems faced by freelancers through the Any Job platform. Any Job platform development using the Scum method. In building this sistem the author uses the Nuxt.js framework as the frontend. Any Job provides 2 roles namely worker and recruiter. Within the Any Job platform displays a list of freelancer vacancies for daily, weekly or monthly work with a breakdown of skills. All work progress must be captured and stored on the platform as a Proof of Work. On the Any Work platform there are various features, namely, Apply for jobs for prospective workers, check-in features and progress updates, job postings for job providers, reject or accept features to select prospective workers, detailed progress features to see the work of workers , a chat feature to make it easier for workers to communicate with job providers, an edit profile feature to add user profile details, a change password feature to change the account password that has been created by the user, a role switch feature to switch from worker to recruiter and vice versa, and History feature to view the history of work that has been done by the user. Writing code using Visual Studio Code software
Effects of the geometrical imperfections on the ultimate strength performances: A case study on the designed-steel stiffened panel
No full textIn the analytical calculation of Hull Girder Ultimate Strength using Smith's method, the ship is divided into several elements, where each element contributes to the total bending capacity of the ship. At this point, the ultimate strength assessment of stiffened panels which is part of the ship hull elements must be conducted cautiously by taking into account the undesirable conditions. The present paper studies the ultimate strength of stiffened panels under variations of initial imperfection geometrics with a particular degree of severity. Additionally, the geometry variations of the stiffened panel model have been carried out to obtain results according to actual conditions. The analysis was conducted using the finite element method by the commercial software ANSYS, and then the results were compared using the results from IACS-CSR. In general, results show that the initial imperfection geometric greatly decreases the ultimate strengths at around 10% for standard initial imperfection geometric and at around 7.8% percent for severe imperfection
Effect of design parameters on the ultimate strength and collapse behaviour of stiffened panels
No full textResearch about stiffened panel applications in ships has massively progressed with the amount of several methods to analyze it. Various studies had been conducted on stiffened panels using Finite Element Method (FEM). However, none have thoroughly explored the most optimal and efficient analysis methods and settings. Given the growing importance of FEM in reliability analysis for ship structures, particularly stiffened panels, a comprehensive study comparing different approaches is of paramount significance. Such research would not only streamline timeconsuming procedures but also offer invaluable recommendations to advance the field's understanding and practical applications. In this paper, a finite element analysis study was done to analyze the influence of several parameter modeling of stiffened panels not only to achieve the models' ultimate strength value and collapse behavior but also to offer practical recommendations on the most optimal and efficient methods for analyzing stiffened panels through FEM. Conducting modification of three variations of the model configuration, four variations of boundary condition, and four variations of transverse stiffener modeling to compare each other. Running time consumed when simulations are calculated in ANSYS APDL was also being considered. The results showed a significant difference in modifying the model configuration's case, while in contrast, the modification of boundary conditions and transverse stiffener modeling only showed a slight difference in ultimate strength value. In addition, modification of transverse stiffener geometry only gave the difference by around 0.5 MPa. The model configuration case (A1 v A2) showed the most remarkable running time difference, which reached six times difference
Timber flooring in traditional Malay and modern Malaysian homes: a study of material choices and sustainability
No full textThis paper explores the use of timber as a primary interior floor finish, tracing its significance from traditional Malay houses to modern Malaysian homes. Timber, a sustainable and renewable material, has been integral to Malay architecture, providing functionality and aesthetic appeal. Local species such as kempas, keruing, and meranti were historically used, while modern designs incorporate both local and imported varieties. This study examines the cultural and environmental importance of timber flooring, highlighting its role in enhancing interior spaces, promoting sustainability, and preserving Malaysia's architectural heritage. The findings underscore timber's enduring relevance in contemporary design and built environments
