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All Journal ESENSI: JURNAL BISNIS DAN MANAJEMEN Jurnal Aplikasi Bisnis dan Manajemen (JABM) E-Journal Jurnal Teknik Sipil Perspektif Komunikasi; Jurnal Ilmu Komunikasi dan Komunikasi Bisnis Management Studies and Entrepreneurship Journal (MSEJ) Sibatik Journal : Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan
Poltak Sinaga, Poltak
Project Manager of Conveyors, Coal Terminal, Bulk Material Handling and Infrastructures PT. Kaltim Prima Coal, Sangatta, East Kalimantan, Indonesia
Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Social Sciences

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Numerical and Experimental Studies of Wave Propagation Induced by Pile Driving Susila, Endra; Siahaan, Suhermanto; Sinaga, Poltak; Agrensa, Fico
Jurnal Teknik Sipil Vol 21, No 2 (2014)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (864.609 KB)

Abstract

Abstract. This paper presents results of numerical and experimental studies to predict the peak particle velocity (ppv) induced by a pile driving. By utilizing a professional finite element software, Plaxis 2D Dynamic, this study analyzed ppv due to pile driving in clays for various soil stiffness and various embedded pile lengths. For verification, a full scale field test of pile driving was performed in East Kalimantan with installed instrumentations of accelerations. Results of both instrumentation and numerical analysis show that ppv depends on distance and soil rigidity. The closer the object to pile tip, the larger the ppv that will be produced. The more rigid the soils at the pile tip, the larger the ppv, too. The results also show that both field test and numerical analysis results are comparable. Finally, this paper proposes a chart to predict the ppv of soils due to pile driving in clays. The output of the proposed method is the predicted ppv for various distances from pile driving location. Abstrak. Paper ini menyampaikan hasil studi eksperimental dan numerik untuk memperkirakan besarnya kecepatan rambat gelombang (ppv) akibat pemancangan tiang pancang. Dengan bantuan software Plaxis ver. 8.2 Dynamic, studi ini menganalisis sejumlah model dengan berbagai variasi kekakuan pada tanah, khususnya tanah lempung (clay) dan berbagai kedalaman fondasi tiang tertanam. Hasil analisis software Plaxis ver. 8.2 Dynamic ini telah diverfikasi dengan hasil studi eksperimental pada sebuah proyek pemancangan fondasi tiang pancang di Kalimantan Timur. Berdasarkan analisis numerik dan data dari pengujian lapangan yang mempunyai hasil yang hampir sama, nilai ppv bergantung dari jarak dari pemancangan dan kekakuan tanah. Hasil dari penelitian ini adalah usulan formulasi prediksi besarnya kecepatan rambat gelombang (ppv) dalam bentuk chart untuk mempermudah menentukan nilai ppv yang akan terjadi akibat pemancangan di tanah lempung. Sedangkan keluarannya akan berupa besaran nilai ppv (peak particle velocity) terhadap jarak pemancangan tiang.
The Effect of Leadership Style, Trust, and Work Ethic as Mediation on The Work Engagement of AI's Companies Sihite, Otto Berman; Sinaga, Poltak; Bernarto, innocentius; Sijabat, Rosdiana
Esensi: Jurnal Bisnis dan Manajemen Vol 11, No 1 (2021)
Publisher : Faculty of Economic and Business

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/ess.v11i1.20247

Abstract

The objective of the research purpose is to analyze if there is an effect of the Leadership Style, Trust, and Work Ethic, towards Engagement especially to the service department. Due to the fact that complaints increased from customer and impact to less satisfactory. A quantitative approach, with path analysis, and survey research designs using a questionnaire used to test hypotheses for employees in the service section from the labor level to the Supervisor position. Total samples 78 people taken from 100 populations. It was discovered from the results, that work ethic has a positive and important influence on working engagement that decrease the level complaints, which makes this research special since no related research has been done so far.Cara Mengutip:Sihite, O. B., Sinaga, P., Bernarto, I., & Sijabat, R.. (2021). The Effect of Leadership Style, Trust, and Work Ethic as Mediation on The Work Engagement of AI's Companies. Esensi: Jurnal Bisnis dan Manajemen, 11(1), xx-xx. https://doi.org/10.15408/ess.v11i1.20247.
MANAJEMEN PERUBAHAN KOMUNIKASI PARTAI POLITIK NEW WAVE: SEBUAH STUDI ETNOGRAFIS DI PARTAI PSI JAWA BARAT Alamsyah, Virza Utama; Sinaga, Poltak; Ugut, Gracia; Hulu, Edison
Perspektif Komunikasi: Jurnal Ilmu Komunikasi Politik dan Komunikasi Bisnis Vol 5, No 1 (2021): Perspektif Komunikasi
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (24.381 KB) | DOI: 10.24853/pk.5.1.227-243

Abstract

Studi ini bertujuan untuk menjawab bagaimana laju Partai Solidaritas Indonesia (PSI) di Jawa Barat dalam menjalankan strategi komunikasi politiknya berbeda dengan PSI  di DKI Jakarta, hal ini menjadi sebuah fenomena menarik karena sejatinya Jawa Barat berbatasan langsung dengan DKI Jakarta. Riset ini menggunakan pendekatan kualitatif  Etnografi untuk menemukan dan menggambarkan dinamika partai guna meningkatkan performa komunikasi politik PSI di Jawa Barat. Berdasarkan hasil penelitian didapati bahwa manajemen komunikasi politik new wave terdapat dalam tubuh PSI Jawa Barat. Pendekatan tiga hal penting yakni kultur-nilai, coaching oleh ketua dan sikap progresif-dinamis anak muda membuat PSI Jawa Barat mendapati posisi politik yang berbeda dalam konstetasi di Jawa barat
Pengaruh Kualitas Pelayanan, Penjualan Personal, Dan Kepuasan Pelanggan Terhadap Keputusan Pembelian Pelanggan Pada PT. Hokinda Citralestari Tasya, Tasya; Situmeang, Rosinta Romauli; Khosashi, Jovin; Liu, Angelica; Hendra, Hendra; Sinaga, Poltak
Management Studies and Entrepreneurship Journal (MSEJ) Vol. 5 No. 1 (2024): Management Studies and Entrepreneurship Journal (MSEJ)
Publisher : Yayasan Pendidikan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/msej.v5i1.4406

Abstract

Hokinda Citralestari saat ini sedang mengalami beberapa fenomena dimana keputusan pembelian pelanggan pada produk yang ditawarkan oleh perusahaan terus mengalami penurunan dari tahun ke tahunnya. Hal tersebut berdampak pada perkembangan perusahaan karena jumlah penjualan produk perusahaan terus mengalami penurunan. Hal tersebut diketahui diakibatkan oleh kualitas pelayanan, penjualan personal dan kepuasan pelanggan. Waktu penelitian bulan Februari 2022. Peneliti mengambil populasi dalam penelitian ini sebanyak 238 pelanggan yang melakukan pembelian pada perusahaan. Teknik penentuan sampel yang akan digunakan adalah dengan menggunakan rumus Slovin dengan tingkat toleransi 5% dimana dengan perhitungan yang dilakukan, didapatkan sebanyak 149 sampel. Kualitas Pelayanan mempunyai dampak positif dan signifikan terhadap Keputusan Pembelian pada PT. Hokinda Citralestari. Penjualan Personal mempunyai dampak positif dan signifikan terhadap Keputusan Pembelian pada PT. Hokinda Citralestari. Kepuasan Pelanggan mempunyai dampak positif dan signifikan terhadap Keputusan Pembelian pada PT. Hokinda Citralestari. Secara serempak Kualitas Pelayanan, Penjualan Personal dan Kepuasan Pelanggan mempunyai dampak signifikan terhadap Keputusan Pembelian pada PT. Hokinda Citralestari.
The Effect of Academic Culture and Collaborative Culture as Collaborative Academic Culture to Improve The Innovative Behavior in Universities Sihite, Otto Berna; Sinaga, Poltak; Hidayat, Dylmoon; Sijabat, Rosdiana
Jurnal Aplikasi Bisnis dan Manajemen Vol. 9 No. 1 (2023): JABM, Vol. 9 No. 1, Januari 2023
Publisher : School of Business, Bogor Agricultural University (SB-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17358/jabm.9.1.1

Abstract

Leaders in various universities design and participate in education by constructing and developing fresh and new ideas and innovations to create efficient teaching methods across all departments. Additionally, millennials are the technology-literate generation, making this an exciting time for them as they try to meet market demand. This fact will serve as the foundation for determining whether the university's collaborative and academic culture impacts the lecturers' innovative behavior. The 101 samples of lecturers were taken from 5 universities in the Jakarta and Java area. The Structural Equation Model (SEM) of Smart PLS was used in this analysis. The results indicated whether Collaborative Culture and Academic Culture affect Innovative Behavior. From the results of this analysis, it is essential to develop and improve future methods of combining collaborative and academic culture to create a Collaborative Academic Culture. This method would in turn improve innovation in the university, as the country had set a goal to increase the collaboration between higher education stakeholders in society. It is also expected that the derivation of the two variables will further develop the effectiveness of quality teaching in higher education. Keywords: collaborative culture, academic culture, innovative behavior
NAVIGATING INNOVATION HORIZONS: A SYSTEMATIC LITERATURE REVIEW ON LEADERSHIP TRANSFORMATION AND TECHNOLOGICAL COMPETENCE IN INDUSTRIAL MANAGEMENT Tamrin Reni, Agus; Sinaga, Poltak
SIBATIK JOURNAL: Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan Vol. 3 No. 2 (2024): January
Publisher : Penerbit Lafadz Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/sibatik.v3i2.1862

Abstract

The integration of green concepts into Industry 4.0 management significantly influences the reshaping of strategies and policies pertaining to leadership and technological competence. Effective green industrial management necessitates leaders who prioritize industrial environmental sustainability and possess proficiency in green technology. This systematic literature review aims to present a comprehensive overview of leadership and technological competence concepts and practices within the context of green industrial management. Employing a structured review method, the framework of this literature review provides insights into the transformative potential of green leadership on both human resources' green performance and the overall industrial environment. The study highlights the imperative for green leaders to enhance their proficiency in green technology to foster sustainable green innovation. The implications drawn from this research offer valuable guidance for green industry managers, aiding them in formulating strategies and policies that foster leadership transformation and enhance green technological competence within the industrial landscape.
Co-Authors Alamsyah, Virza Utama Dylmoon Hidayat Endra Susila Fico Agrensa Gracia S Ugut Hendra Hendra Hulu, Edison Innocentius Bernarto, Innocentius Khosashi, Jovin Liu, Angelica Rosdiana Sijabat Rosinta Romauli Situmeang, Rosinta Romauli Sihite, Otto Berman Sihite, Otto Berna Suhermanto Siahaan, Suhermanto Tamrin Reni, Agus Tasya, Tasya