scholarly journals Determination of criteria and sub-criteria for selection of spare parts raw material supplier using the Delphi method

Author(s):  
Aulia Ishak ◽  
Tommy Wijaya
2021 ◽  
Vol 7 (11) ◽  
pp. 320-324

Research relevance: this article is considering selection and organization of grammatical materials relevant in English language teaching. Research purpose: at incorrect interpretation of grammatical minimum content, students cannot fully assimilate the simplest and basic phenomena of morphology and syntax. In connection with this, determination of grammatical material quantity and content in a foreign language allows to increase the quality of learning. Research materials and methods: article analyzes differences between basic principles of selection of active and passive grammatical minimums and the criteria for selection of grammatical materials. Research results: there is requirement for teacher to choose a grammatical topic, ideologically relevant for students training and education. Conclusions: choosing a specific topic, students should be able to systematize their training from simple to complex, from simple to complex.


2019 ◽  
Vol 3 ◽  
pp. 63-68
Author(s):  
M Fakhruddin Alfaris M Fakhruddin Alfaris ◽  
M Qurtubi

Companies must choose suppliers properly, because the selection of the right supplier can reduce raw material costs and increase the competitiveness of the company, while improper supplier selection can cause financial and operating problems. The purpose of this study is to determine the optimal supplier and order quantity of raw materials. As for the object of the research is a multipurpose technology machinery company. Data collection methods used in this study were observation, interviews, and questionnaires. Supplier data is processed using the AHP method to determine the right supplier, while the linear programming method is used to determine the order quantity of the raw material. Based on the calculation, the DS supplier gets a weight of 0.65 and the LG supplier gets a weight of 0.35. The optimal order quantity from each supplier is 7.5 tons for DS and 7.5 tons suppliers for LG suppliers. From the results of the optimization, the cost reduction figure is Rp. 3,750,000 or 3% of the total cost of purchase.


2011 ◽  
Vol 120 ◽  
pp. 230-234
Author(s):  
Cheng Zhang ◽  
Rong Mo ◽  
Hai Cheng Yang ◽  
Xiao Jun Wang ◽  
Xiao Rui Lu

This article determines the main factors influencing the quality of ERTi-7 titanium wire through building AHP-PQ model: processing technology. under the circumstance of instable quality of ERTi-7 titanium wire in international market. Through the selection of raw material, feeding material evenly during melting, control of melting times and the determination of surface machining process, the inhomogeneity of chemical compositions of ERTi-7 and the corresponding removal method are studied. The results show that it is easier to obtain ingot with good surface and fine structure using triple melting without increasing the content of Pd element, and then going through non-oxidation roller-die drawing process, we will obtain qualified titanium wire with good surface and also conforming to the request of AWS A5.16/A5.16M:2007.


2021 ◽  
pp. 101-108
Author(s):  
Vicky Setia Gunawan ◽  
Yuhandri Yunus

Generally, every company must have an assessment of the supplier of materials in order to maintain the quality of their production. When a supplier gets a good rating, the company usually gives awards such as incentives to the supplier in the hope of increasing motivation, professionalism and good relations with the company. The determination of incentives is currently only based on analysis of existing data records manually, which may lead to errors. From previous observations, a decision support system was created in the optimization of incentives. This study aims to optimize the results of decisions in providing incentives to suppliers. The method used is Technique for Others Preference by Similarity to Ideal Solution (TOPSIS). This method can determine which suppliers are entitled to incentives. The data that is processed in this research comes from PT. Prima Beton Cakrawala. Price, Quality, Delivery, Service and Offer are the assessment criteria for determining incentive recipients. The results of the TOPSIS calculation process can find a more accurate alternative choice decision, because the alternative assessment is in accordance with the specified criteria. Based on the value of the criteria weight for the selection of incentive recipients for each alternative. The results of this study recommend A3 suppliers with a preference value of 0.646 as raw material suppliers who are entitled to receive incentives. Comparisons made between manual calculations and the system built get almost the same results. So that the level of accuracy is 95% accurate enough, so that it can produce factual decision data in order to assist companies in determining incentive recipients so as to increase the motivation of suppliers in providing services. So that it is expected that the leadership can use it as a reference for optimizing decisions on providing incentives.


Author(s):  
Marzieh ABBASSINIA ◽  
Omid KALATPOUR ◽  
Ali Reza SOLTANIAN ◽  
Iraj MOHAMMADFAM ◽  
Mohammad GANJIPOUR

Introduction: The number of emergency situations is high in petrochemical industry. These situations cause devastating injuries and loss and a lot of time, cost, facilities, and resources are needed to control all of them. Selection and prioritization of emergencies are important to take the corrective actions. The purpose of this study was to determine the effective criteria in selection of emergency situations and to provide an approach for prioritization of emergency situations based on the defined criteria in petrochemical industries. Methods: This qualitative and applied study was conducted in a petrochemical complex in 2018. The Delphi technique was used to identify and prioritize the appropriate criteria. In the next step, a table was designed to score the emergencies. Results: The most important criteria for selection of hazardous emergencies were the damage severity, probability of occurrence, loss or disruptions in production, spatial context of accident, and social effects. The most important emergencies in the industry included fires and explosions in gas discharging units, chemical storage places, and pressurized equipment containing butadiene. Conclusion: Using this approach, high-priority emergencies were identified. This helps managers to plan control measures, analyze these emergencies, and respond to them in order to prevent crisis.


Author(s):  
Subedar Yadav

Citric acid has become an important raw material for general industrial use with many varied and expanding applications such as iron, steel, treatment and conditioning of industrial water supplies, preparation of alkyl resins, paints and in the printing of calico and textile industries. Mycological Production of citric acid includes preparation and sterilization of different media, culture medium, and seedling of culture tube, incubation of culture tubes, determination of citric acid formed and molasses left unfermented during the course of present investigation. The Present work deals mainly selection of potent strains of fungus.


Fitoterapia ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 55-58
Author(s):  
J. M. Steshenko ◽  
◽  
O. V. Мazulin ◽  
G. P. Smoylovska ◽  
G. V. Mazulin ◽  
...  
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