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Deacidification And Decoloration (Jatropha Curcas L.) Using Membrane Microfiltration Ika Amalia Kartika; Sri Yuliani; Dhiani Dyahjatmayanti
Jurnal Teknologi Industri Pertanian Vol. 19 No. 2 (2009): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

This study focused on the deacidification and decoloration of crude jatropha oil using microfiltration membrane. The experiment was conducted with hydraulic-pressed jatropha oil and polypropylene (PP) membrane hollow fiber with a molecular weight cut-off (MWCO) of 0.01 μm and a permeation area of 1 m2. Several tests were carried out to define the best performance (permeate flux, free fatty acid reduction and clarity) by studying the influence of duration and frequency of backflush.  Permeate flux was low but remained stable for a long period.  No long-term fouling appeared during the membrane processing. The permeate flux increased with transmembrane pressure. In addition, the backflush treatment can recover and increase permeate flux.   The higher permeate flux of 8.42 l/m2.h was obtained under duration and frequency of backflush of 6 seconds and 15 times, respectively. Furthermore, microfiltration membrane was found to have a positive effect on color reduction, but was not affective for deacidification. Keyword:   Microfiltration, Polypropylene, Jatropha oil, Backflush.
PROSES DAN PRAKTIK BELAJAR DALAM ORGANISASI PEMBELAJAR PADA PERUSAHAAN BIRO JASA PERJALANAN DI YOGYAKARTA Dhiani Dyahjatmayanti; You She Melly Anne Dharasta
MANAJEMEN DEWANTARA Vol 1 No 2 (2017): MANAJEMEN DEWANTARA
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.205 KB) | DOI: 10.26460/md.v1i2.1633

Abstract

Specific objectives in this study is to analyze the implementation of concrete learning processes and practices in learning organizations on travel agency companies in Yogyakarta in the midst of a tight competition. Then, give suggestion of recommendation of strategic steps for travel agency company in Yogyakarta in order to apply organizational principle of learners. In addition, the contribution to knowledge or theory is manifested in the form of review and additional insight into the application of learning organizations to the company.This research uses qualitative approach. Data collected were primary data obtained through questionnaire of learning organization and interview with related respondent, and secondary data.Primary data were analyzed by conducting content analysis. The method used to test the validity of data is triangulation and respondent validation.Based on the results of research and analysis, researchers found that travel agency company in Yogyakarta has not become a learning organization. This is because there are components of concrete learning processes and practices that have not been implemented properly, specifically the limited education and training.
ANALISIS SWOT DESA WISATA DI KABUPATEN SLEMAN YOGYAKARTA You She Melly Anne Dharasta; Dhiani Dyahjatmayanti; Kartika Fajar Nieamah
Jurnal Manajemen Vol 7 No 2 (2017): JURNAL MANAJEMEN VOL. 7 NO. 2 DESEMBER 2017
Publisher : Fakultas Ekonomi Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26460/jm.v7i2.281

Abstract

The development of tourist villages in Sleman district is very fast. Increasing the tourist village in Sleman District, each tourist villages should be able to manage the village well, and can introduce to the community effectively and efficiently. If visitors of the tourist village increase, it will have an impact on the increased revenue so that no difficulty in covering the costs used for the operational tourist village. Therefore it is important to develop a proper, effective, and efficient marketing strategy. The purpose of this study (1) To analyze the threats, opportunities, strengths and weaknesses of each tourist village in Sleman in an effort to increase tourist visits. (2) To know and analyze what tourism marketing strategy that can be applied in Sleman, Yogyakarta. From interviews with village tour managers and via questionnaires circulated to tourists, the average respondent responded positively, although there were still things that were perceived to be lacking, among others, access to transportation roads, parking lots, and road directions. Based on the SWOT analysis the most dominant strategy choice is the SO strategy (Strength Opportunities): the strategy utilizes all the power to create and utilize the greatest opportunities that is (1) Maintenance and development of the environment (2) Increase and multiply the tour package (3) Perform event to attract the tourists. Keywords: SWOT Analysis, Tourist Village, Sleman
PENERAPAN BUDAYA ORGANISASIONAL YANG BERETIKA BISNIS PADA PERUSAHAAN DI INDUSTRI PENERBANGAN INDONESIA Dhiani Dyahjatmayanti
Jurnal Manajemen Vol 8 No 2 (2018): JURNAL MANAJEMEN VOL. 8 NO. 2 DESEMBER 2018
Publisher : Fakultas Ekonomi Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26460/jm.v8i2.704

Abstract

Abstrak Bisnis merupakan aktivitas yang memerlukan tanggung jawab moral dalam pelaksanaannya, sehingga etika dalam praktik bisnis memiliki hubungan yang erat, tak terkecuali pada industri penerbangan. Memetik dari pentingnya sikap etik dalam kehidupan bisnis maka dianggap penting untuk mengetahui bagaimana perusahaan menghadapi masalah-masalah yang krusial dalam menjalankan praktik etika bisnis. Budaya organisasional memiliki peranan penting dalam penerapan etika bisnis perusahaan. Tujuan penelitian yang ingin dicapai adalah menganalisis pengaruh budaya organisasional terhadap penerapan etika bisnis dan penerapannya di perusahaan pada industri penerbangan Indonesia. Kontribusi terhadap pengetahuan diwujudkan dalam bentuk review dan penambahan wawasan keilmuan mengenai penerapan etika bisnis khususnya di perusahaan penerbangan. Penelitian ini menggunakan pendekatan kuantitatif deskriptif. Data primer berupa hasil kuesioner yang diisi oleh 79 karyawan perusahaan pada industri penerbangan dan dianalisis dengan menggunakan uji F, regresi sederhana, dan koefisien determinasi. Hasil wawancara dianalisis dengan content analysis. Hasil penelitian menunjukkan bahwa perusahaan telah memiliki kode etik (code of conduct) yang menjadi panduan bagi karyawan dan stakeholder yang selalu disosialisasikan oleh perusahaan. Berdasarkan hasil uji F hitung sebesar 17,922 dengan nilai signifikan 0,000, menunjukkan bahwa terdapat pengaruh budaya organisasional terhadap penerapan etika bisnis perusahaan. Berdasarkan hasil regresi linear sederhana menunjukkan adanya pengaruh positif antara budaya organisasional dan etika bisnis. Berdasarkan hasil koefisien determinasi menunjukkan bahwa budaya organisasional memberikan pengaruh sebesar 18,92% terhadap penerapan etika bisnis, sedangkan sisanya 81,08% disebabkan oleh variabel lainnya. Kata Kunci: budaya organisasional, etika bisnis, industri penerbangan. Abstract Ethic holds an important role in business organization. This means that anyone conducting in aviation industry needs to imbue themselves with noble ethic and also moral responsibilities. Concerning to the importance of ethic in business, the researchers believe that it is important to know how airline companies face the crucial problems in their practice. This study aims at analyzing the influence of organizational culture on the implementation of the business ethics of the Indonesian aviation industry. This is a descriptive quantitative study. The primary data were collected through questionnaires and interview to the employees in aviation company in Indonesia. The primary data from the questionnaires were analyzed using simple regression and coefficient. The data from the interview were analyzed using content analysis. The result showed that the companies already have the code of conduct for the employees and stakeholders. The F-test revealed that the company culture influence the implementation of the business ethics of the Indonesian aviation industry. The simple linear regression showed the positive relationship between the organization culture and the Business ethic. The coefficient determination revealed that organization culture contribute to the 18,92% on the implementation of the business ethics, while the 81,08% is caused by other variables. Keywords: organizational culture, business ethics , aviation industry
STRATEGI KOMUNIKASI EFEKTIF CUSTOMER SERVICE TERHADAP PENINGKATAN PELAYANAN DI BANDAR UDARA INTERNASIONAL SUPADIO PONTIANAK Dhiani Dyahjatmayanti; Hary Prasetia Febrianto
Jurnal Manajemen Dirgantara Vol 16 No 1 (2023): Jurnal Manajemen Dirgantara, Juli 2023
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/manajemen-dirgantara.v16i1.916

Abstract

Customer service berperan sangat penting dalam memberikan informasi dan melayani calon penumpang atau pengguna jasa di bandara, tugas utama customer service adalah memberikan informasi, pelayanan dan menangani keluhan calon penumpang atau pengguna jasa bandara. Tujuan dari penelitian ini adalah untuk menganalisis komunikasi efektif customer service di Bandar Udara Internasional Supadio Pontianak. Selain itu, tujuan penelitian ini juga untuk menganalisis strategi komunikasi customer service dalam meningkatkan pelayanan calon penumpang. Penelitian ini menggunakan metode kualitatif, dengan menggunakan teknik pengumpulan dan pengambilan data melalui wawancara, observasi, dokumentasi dan studi pustaka. Teknik analisis data yang peneliti lakukan dengan cara pengumpulan data, reduksi data, penyajian data, verifikasi dan kesimpulan. Hasil penelitian yang didapatkan dari penelitian ini adalah komunikasi efektif customer service kepada calon penumpang di Bandar Udara Internasional Supadio Pontianak dalam memberikan layanan, yaitu menggunakan Bahasa Indonesia dan menggunakan Bahasa Inggris ketika melayani calon penumpang atau pengguna jasa warga negara asing, berbicara dengan nada rendah tetapi tidak terlalu pelan, serta memperdengarkan suara dengan nada dan intonasi yang ceria, menyenangkan, dan bersemangat. Strategi Komunikasi Customer Service Bandar Udara Internasional Supadio Pontianak dalam meningkatkan pelayanan pada calon penumpang, yaitu melakukan briefing dan selalu berkoordinasi, membuat rekapitulasi laporan keluhan pelanggan, menyapa dengan ramah serta mendengarkan dengan antusias tanpa memotong penyampaian dari calon penumpang, memastikan kembali penyampaian calon penumpang, memberikan informasi atau solusi yang tepat dan faktual sesuai di lapangan dan terbaru, mengakhiri komunikasi dengan magic word dan selalu menjalin hubungan yang baik kepada calon penumpang.
Analisis Faktor Penyebab Turunnya Minat Penumpang dan Minimnya Aktivitas di Bandar Udara H. Asan Sampit Dhiani Dyahjatmayanti; Maria Indriani Sofia Seran
El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Vol 5 No 3 (2024): El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam
Publisher : Institut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/elmal.v5i3.3766

Abstract

The purpose of this research is find out the causes of the decline in passenger interest and the lack of activity at Sampit H. Asan Airport. This study uses a qualitative research method which is conducted in September 2022 at H. Asan Sampit Airport, Central Kalimantan. This research was conducted using data collection techniques and data collection through interviews conducted with 4 informants, namely the Head of Class II H. Asan Sampit Airport, the Head of the Service and Cooperation Section, the General Manager of Wings Air, and passengers at H. Asan Sampit Airport, through observation and documentation. To test the validity of the data, researchers used a data credibility test which was carried out by triangulation of technical data. For data analysis that researchers use, namely, data reduction, data presentation, conclusion, and verification. The research results obtained from this study are the factors causing the decline in passenger interest in H. Asan Sampit Airport flight routes, where visitors and prospective passengers want additional flight routes, especially the islands of Kalimantan and Java. Facilities, where many passengers want facilities in the form of seats at the terminal and ticket prices, where passengers want promos for ticket prices at Sampit H. Asan Airport. The factor causing the lack of activity at H. Asan Sampit Airport is the lack of interest of passengers at H. Asan Sampit Airport which is caused by flight routes where there are only 2 routes at H. Asan Sampit Airport, the facilities at the terminal are incomplete and there are no promos for ticket prices at Sampit H. Asan Airport. Keywords: Factor ; Passenger Interests ; Airport Activity.