Nowadays, with extending applications of bi-layer metallic sheets in different industrial sectors, accurate specification of each layer is very prominent to achieve desired properties. In order to predict behavior of sheets under different forming modes and determining rupture limit and necking, the concept of Forming Limit Diagram (FLD) is used. Optimization problem with objective functions an...

Melalui Peraturan Pemerintah No. 70 tahun 2009 tentang Konservasi Energi, pemerintah telah mewajibkan bagi pengguna energi besar yaitu yang menggunakan sama atau lebih dari 6000 setara ton minyak per wajib melaksanakan kegiatan konservasi manajemen energi. Dalam penelitian di objek merupakan perusahaan ban, tersebut salah satu industri dan secara langsung memberikan dampak penyediaan nasional. ...

isotactic poly (1-butene), ipbu-1, was synthesized by using a metallocene catalyst. the thermodynamic phase behavior of polymer–organic solvents systems is very important in every polymer application.  in this paper, the solid–liquid equilibrium of ipbu-1 with different organic solvents (1-heptyne, cyclo octane) was studied by a mathematical model. by considering the experiments temperature-mol...

This paper presents the strategy for multi-criteria optimization of a prototype. There are taken into account two different optimization criteria. An original computer program was made to make possible the graphic display of regions on the 3D model surface, which exceed a limit for surface roughness, initial established. The computer program allows the automate calculation of optimal position f...

In the design of chemical/energy production systems, a major challenge is to identify the bottleneck issues and improve its sustainability effectively. Due to the multi-dimensional feature of sustainability, how to account for the impacts of various design factors and the cause-and-effect relationships can be very difficult. This paper will present a sustainability root cause analysis method ba...

Isotactic poly (1-butene), ipbu-1, was synthesized by using a metallocene catalyst. The thermodynamic phase behavior of polymer–organic solvents systems is very important in every polymer application.  In this paper, the solid–liquid equilibrium of ipbu-1 with different organic solvents (1-heptyne, cyclo octane) was studied by a mathematical model. By considering the experiments temperature...

This study is an attempt to focus on the impact of quality circle towards employees & organization. Employee’s attitude towards participative management is also discussed in detail through the case study. The observed data are analyzed through cause-effect diagram, Pareto-diagram etc. The results and findings are not only amazing but also beneficial to both employees & organization. It results ...

Latar Belakang: Diagram Pareto merupakan salah satu alat ukur mutu untuk menganalisis pengelolaan bahan habis pakai sehingga menjadi hal penting bagi rumah sakit. Hal ini dipengaruhi juga dengan pengetahuan dan minat perawat yang rendah, bukan hanya karena fasilitas tidak memadai tetapi pengaruh minimnya informasi tentang pentingnya tersebut.Tujuan: Mengetahui sosialisasi diagram terhadap dalam...

The purpose of this study was to determine the factors that affect quality black tea products. This shows PT XYZ as a processing company has problems in achieving product quality. is shown by not target products, even though raw materials are relatively accordance with standards. analysis used cause and effect using fishbone diagram causes problems, well use pareto 5-why support. Failure mode (...