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Abstrak :
Hubungan diversifikasi, inside blockholder ownership (blok kepemilikan saham manajer atas atau direksi) dan nilai perusahaan telah diteliti di berbagai negara. Hasil yang diperoleh menunjukkan adanya pengaruh negatif signifikan dari inside blockholder ownershqs terhadap level diversifikasi dan pengaruh negatif signifikan dari level diversiflkasi terhadap nilai perusahaan.

Penelitian terhadap 141 perusahaan manufaktur yang tercatat di Bursa Efek Jakarta menunjukkan adanya pengaruh negatif signifikan dari inside blockholder ownership dan outside blackholder ownership (blok kepemilikan saham di luar manajemen dan publik) terhadap level diversitikasi. Ini berarti manajer yang diberi porsi saham lebih besar akan cenderung mengurangi tindakan diversifikasi dan outside blackholder ownership melakukan pengawasan yang efektif terhadap tindakan diversifikasi manajer. Penelitian ini juga menunjukkan bahwa perusahaan yang size-nya Iebih besar cenderung untuk melakukan diversifikasi. Sementara umur perusahaan tidak berpengaruh terhadap level diversifikasi.

Akan tetapi, penelitian ini tidak menemukan pengaruh signifikan dari level diversifikasi dan inside blockholder ownership terhadap nilai perusahaan yang diukur dengan PER. Sementara variabel profitability berpengaruh positif signifikan terhadap PER, sedangkan Ieverage, dividen dummy, ourside blockholder ownership dan size berpengaruh negatif signifikan terhadap PER.

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The relationship between diversification, inside blockholder ownership and value of the firm has been researched in different countries. The studies have concluded that inside blockholder ownership has negative impact on the level of diversification and level of diversification has negative impact on the value of the firm.

Using 141 manufacturing companies listed in the Jakarta Stock Exchange, this research provides evidence on the level of diversification and the value of the firm. Level of diversification is negatively affected by inside blockholder ownership and outside blockholder ownership, but positively affected by size. Meanwhile, age does not have significant impact on the level of diversification. Hence managers with higher ownership stakes in the firm are associated with reduced levels of diversification and outside blockholder provides ejective monitoring on managers diversification efforts.

However, we find that level of diversification and inside blockholder ownership do not have significant impact on the value of the firm measured by price earning ratio (PER). While profitability has signyicant positive impact on PER, leverage, dummy dividend, size, and outside blockholder ownership have significant negative impact on PER.

Abstrak :
Model faset STL merupakan salah satu format CAD yang sering dipakai dalam industri manufaktur, namun file STL tidak memiliki informasi hubungan bentuk atau topologi apapun terhadap fitur dari model tersebut. Dalam penelitian ini dikembangkan sebuah metode identifikasi fitur dan pengaplikasiannya dalam proses pembuatan toolpath dari model faset semi-open impeller. Dimulai dari membaca file STL, membuat struktur data, proses identifikasi fitur impeller, daerah ruang lingkup (bounded volume) hingga proses pembuatan toolpath secara otomatis menggunakan fitur tersebut. Metode yang dikembangkan telah diimplementasikan ke dalam program dalam bahasa C++ dan dapat mengidentifikasi berbagai fitur impeller seperti blade, shroud, hub dan lain-lain pada impeller dan menghasilkan toolpath secara otomatis. ...... STL file format is one of the most used CAD formats in manufacturing industry, but this format doesn’t contain any topological information about the relationships between features in it. This research developed a method to identify the features of semi-open impellers in such faceted models and to generate toolpath using that features. The method spans from reading the STL files, making data structure, identifying features, determining bounded volumes to generating toolpaths automatically using those features. The developed method is implemented to a program and able to reliably identify many features including blade, shroud, hub, etc of the impeller and able to generate toolpath automatically.

Abstrak :
Optimalisasi penggunaan teknologi berperan dalam industri manufaktur agar mampu mencapai potensi produktifitas yang penuh di era ekonomi digital. Adanya transformasi teknologi digital ini dapat memberikan kontribusi besar pada struktur pendapatan pekerja industri manufaktur. Sementara itu, industri manufaktur yang merupakan leading sector perekonomian nasional dalam kurun waktu 2014 hingga 2018. Namun didominasi dengan pekerja berkarakteristik vertical mismatch (ketidaksesuaian antara tingkat pendidikan dengan jenis pekerjaan) yakni diatas 90 persen dan Indonesia menempati posisi tertinggi diantara negara Asia Pasifik lainnya untuk proporsi pekerja vertical mismatch. Resiko tenaga kerja yang berkarakteristik vertical mismatch, khususnya bagi pekerja overqualified adalah upah di bawah standar yang dikarenakan investasi mereka pada tingkat pendidikan tidak dipakai secara optimal. Penelitian ini bertujuan mempelajari pengaruh teknologi digital dan vertical mismatch terhadap pendapatan pekerja industri manufaktur di Indoensia menggunakan data Survei Angkatan Kerja Nasional (Sakernas) Agustus 2019. Hasil regresi linier berganda menunjukkan bahwa teknologi digital dan vertical mismatch berpengaruh secara signifikan terhadap pendapatan. Pekerja underqualified cenderung memperoleh pendapatan lebih besar dibandingkan mereka yang tergolong well-matched sedangkan pekerja overqualified akan dihadapkan dengan wage penalthy atau upah yang rendah. Adanya kemampuan menguasai teknologi digital seperti komputer, smartphone, dan teknologi digital lainnya mampu menambah pendapatan pekerja vertical mismatch dengan kecenderungan lebih tinggi. ......Optimizing the use of technology has a role in the manufacturing industry in order to be able to reach its full productivity potential at this digital economy era. The existence of this digital technology transformation impacts on a major contribution toward income structure of manufacturing industry labors. Meanwhile, the manufacturing industry was the leading sector of the national economy from 2014 to 2018. However, it is dominated by workers with vertical mismatch characteristics (the mismatch between the level of education and the type of work) which is above 90 percent. Furthermore, Indonesia occupied the highest position among other Asia Pacific countries in terms of vertical mismatch worker proportion. The risk of labor which is characterized by a vertical mismatch, especially for overqualified workers, is wages that are below standard because their investment in education level is not used optimally. This research aims to study the effect of digital technology and vertical mismatch on the income of manufacturing industry labors in Indonesia using data from the National Labor Force Survey (Sakernas) August 2019. The results of multiple linear regression indicate that digital technology and vertical mismatch have a significant effect on income. Underqualified labors tend to earn more than those who are classified as well-matched, while overqualified labors will be faced with wage penalthy or low wages. The ability to master digital technology such as computers, smartphones and other digital technologies is able to increase the income of vertical mismatch labors with a higher tendency.

Abstrak :
Lean Manufacturing telah menjadi pendekatan utama untuk menciptakan proses manufaktur yang sangat efisien sejak awal 1990-an. Ini mungkin sangat berhasil karena keefektifannya dalam mengurangi kompleksitas dan menghentikan pekerjaan atau pemborosan yang tidak perlu. Saat ini, istilah Industri 4.0 menggambarkan visi sistem manufaktur masa depan. Penelitian sebelumnya menunjukkan kemungkinan untuk mengintegrasikan dan menggabungkan pendekatan lean dan sistem Industry 4.0. Penelitian sebelumnya menunjukkan bahwa ada hubungan positif antara kedua konsep tersebut. Selain itu, mereka menyimpulkan bahwa mengintegrasikan pendekatan lean dan Industry 4.0 mengarah pada pengurangan biaya yang lebih besar daripada hanya menerapkan salah satunya. Penelitian ini merangkum dan mengusulkan kerangka kerja (framework) yang dapat memandu implementasi integrasi Lean Manufacturing dan Industry 4.0. ......Lean manufacturing has been the primary approach for creating highly efficient manufacturing processes since the early 1990s. It may be very successful due to its effectiveness in reducing complexity and heading off unnecessary works or waste. At present, the term Industry 4.0 depicts a vision of the future manufacturing system. Previous researches indicate the possibility to integrate and combine the lean approach and Industry 4.0 system. Previous researches suggest that there are positive relationships between the two concepts. Besides, they conclude that integrating the lean approach and Industry 4.0 leads to a greater cost reduction than implementing only one of them. The current paper summarizes and proposes a framework that can guide the implementation of the integration of lean manufacturing and Industry 4.0.

Abstrak :
Tesis ini mengkaji permasalahan layout produksi tabung 3 kg dengan mengambil studi kasus di PT. Wijaya Karya Intrade. Pendekatan yang digunakan dalam studi kasus ini adalah konsep lean manufacturing dimana fokus utamanya adalah pada minimalisasi pemborosan dalam kegiatan produksi dan sistem produksi One piece flow. Hasil penelitian ini menunjukkan bahwa dengan pendekatan lean manufacturing, telah mampu menghasilkan layout produksi yang lebih baik dan peningkatan effisiensi pada beberapa aspek.

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The focus of this case study is on production layout of gas cylinder tank 3kg at PT. Wijaya Karya Intrade. The approach applied in this study is lean manufacturing concept which primarily emphasize on minimizing waste in a production activity and one piece flow production system. The study shows that lean manufacturing approach has produced better production layout and improving efficiency on several aspects.

Abstrak :
This book covers various multiple-criteria decision making (mcdm) methods for modeling and optimization of advanced manufacturing processes (AMPs). Processes such as non-conventional machining, rapid prototyping, environmentally conscious machining and hybrid machining are finally put together in a single book. It highlights the research advances and discusses the published literature of the last 15 years in the field. Case studies of real life manufacturing situations are also discussed.