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ANALISIS PENGARUH MEKANISME KORDINASI TERHADAP SCHEDULE INSTABILITY DAN TOTAL BIAYA PADA LEVEL MPS DI ENTITAS RANTAI PASOK SEDERHANA DENGAN MEMPERTIMBANGKAN LEAD TIME Rosyidah, Elsa; Anwar, Mochammad Aldy
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (315.828 KB)

Instability in production planning (or better known as schedule instability) is unavoidable. This makes the company companies make various efforts to minimize the level of instability. There are several strategies that are generally used to minimize instability schedules, including freezing, safety stock / buffer. In this study, we will try to use a coordination approach to minimize the consequences of instability schedules in a simple supply chain. The simple supply chain system is the focus of this study consisting of one entrepreneur and one supplier integrated through a coordination mechanism (sharing information relating to order orders). This research will be conducted to study a full factorial experiment (full factorial experiment). A variety of different operational conditions are also considered such as: the uncertainty of financing, the cost structure, and the inventory policy applied by the company to be the part observed in this study. The results of this study, namely through the existence of a coordination mechanism, can reduce the level of schedule instability in each entity both manufacturing and supplier. In addition, through coordination it is also able to eliminate the transfer of risks that manufacturers often make to suppliers in the production planning section, as well as being able to reduce total costs to manufacturing or supplier entities. Through this research, it is expected to provide an understanding in the manufacturing industry of the importance of coordination in the supply chain system.

Pengaruh Daya Microwave terhadap Yield pada Ekstraksi Minyak Atsiri dari Bunga Kamboja (Plumeria Alba) menggunakan Metode Microwave Hydrodistillation Erliyanti, Nove Kartika; Rosyidah, Elsa
Jurnal Rekayasa Mesin Vol 8, No 3 (2017)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Frangipani oil is one of the most expensive essential oils. Conventional extraction methods has many disadvantages, so the microwave hydrodistillation method is used as an alternative to optimize the quality and quantity of frangipani oil. The purpose of this study was to investigate the effect of microwave power on the yield of frangipani oil. The research stage was carried out by inserting frangipani flower that has been cut into the flask and mixed with different aquadest solvent volumes of 300, 400, 500, and 600 ml. The flask put into the microwave with different powers of 300, 450, and 600 W for three hours. The resulting vapor is collected and separated in a separating funnel. The process is carried out at atmospheric pressure and the operating temperature is 100 Â°C. Finally, the yield percentage determined from resulting product. The results showed that microwave power had a significant effect on the yield percentage of frangipani oil. The yield percentage increased with increasing the microwave power. The highest yield percentage was generated at 600 Watt, 25 gram flower mass, and 600 ml volume, which was 1,612%.

Aplikasi Metode Microwave Hydrodistillation pada Ekstraksi Minyak Atsiri dari Bunga Kamboja (Plumeria alba) Erliyanti, Nove Kartika; Saputro, Erwan Adi; Yogaswara, Rachmad Ramadhan; Rosyidah, Elsa
Jurnal IPTEK Vol 24, No 1 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i1.865

The aim of this study is to determine the effect of microwave power and solvent volume to the density of Frangipani essential oil, and to determine the yield effect of mass of raw material on Frangipani essential oil. Frangipani flowers that have been cut in the size of Â± 2 cm are extracted in the microwave with a mass of 25 gr and 50 gr, volume of solvents is 300, 400, 500, and 600 ml. The extraction process uses microwave power of 300, 450, and 600 watt and the extraction time is three hours. The results showed that the effect of microwave power and the volume of solvent had a significant effect on the density of Frangipani flower essential oils. The result showed that the density is increase when the microwave power and the volume of solvent increase. The highest density is produced at 600-watt microwave power, 600 ml solvent volume, and 50 gram of Frangipani flower mass that is equal to 0.904 gram/ml. Yield decreases with increasing mass of raw material used. The highest yield was produced at 600-watt microwave power, 600 ml solvent volume, and 25-gram Frangipani mass, which is equal to 1.612%.C

ANALISIS PENGARUH MEKANISME KORDINASI TERHADAP SCHEDULE INSTABILITY DAN TOTAL BIAYA PADA LEVEL MPS DI ENTITAS RANTAI PASOK SEDERHANA DENGAN MEMPERTIMBANGKAN LEAD TIME Elsa Rosyidah; Mochammad Aldy Anwar
Journal of Research and Technology Vol. 5 No. 1 (2019): JRT Volume 5 No 1 Jun 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar

Instability in production planning (or better known as schedule instability) is unavoidable. This makes the company companies make various efforts to minimize the level of instability. There are several strategies that are generally used to minimize instability schedules, including freezing, safety stock / buffer. In this study, we will try to use a coordination approach to minimize the consequences of instability schedules in a simple supply chain. The simple supply chain system is the focus of this study consisting of one entrepreneur and one supplier integrated through a coordination mechanism (sharing information relating to order orders). This research will be conducted to study a full factorial experiment (full factorial experiment). A variety of different operational conditions are also considered such as: the uncertainty of financing, the cost structure, and the inventory policy applied by the company to be the part observed in this study. The results of this study, namely through the existence of a coordination mechanism, can reduce the level of schedule instability in each entity both manufacturing and supplier. In addition, through coordination it is also able to eliminate the transfer of risks that manufacturers often make to suppliers in the production planning section, as well as being able to reduce total costs to manufacturing or supplier entities. Through this research, it is expected to provide an understanding in the manufacturing industry of the importance of coordination in the supply chain system.

Pengaruh Sifat Fisik Tanah pada Konduktivitas Hidrolik Jenuh di 5 Penggunaan Lahan (Studi Kasus di Kelurahan Sumbersari Malang) ) Elsa Rosyidah; Ruslan Wirosoedarmo
agriTECH Vol 33, No 3 (2013)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Water movement in saturated soil will affect runoff and infiltration in an area, while water movement in soil processes influenced by soil physical properties. Changes in land use affect the soil physical properties. Changes in land use and differences in the nature of land which includes land use previously existing vegetation into land that does not exist or lack of vegetation resulted in infiltration and percolation rate be changed on the ground and allow the process of infiltration of large, causing the decrease in recharge areas direct rainwater and decrease the availability of ground water. Measurement of water movement in saturated soil conditions or soil Saturated Hydraulic Conductivity (SHC) is very important because SHC role in determining water runoff, infiltration and percolation. The research aimed to know the value of saturated hydraulic conductivity of soil in different land use by using the constant head method and the physical properties of soil including soil texture, weight, density, and porosity in the five land use on three different soil depths. Research conducted in the area Sumbersari in December 2008 until October 2009. Research effect of soil physical properties on using constant head method on five land use is residential population (T1), field (T2), garden tomatoes (T3), shrubs (T4), irrigated rice field (T5) at three different depths ie 0-15 cm (K1), 15-30 cm (K2), and 30-45 cm (K3). The physical properties of soil analyzed include soil texture, weight, density, porosity, and soil moisture content. Results showed that the highest SHC value at all points of location is the location of irrigated rice fields with a depth of 30-45 cm. The main factor affecting the value of SHC is the weight value. Soil physical properties that influence the value of SHC is the soil texture and soil porosity. The results SHC recommended as a reference for land use conditions and other locations with similar soil physical properties.ABSTRAKPergerakan air dalam tanah jenuh akan mempengaruhi limpasan dan infiltrasi pada suatu daerah, sedangkan proses pergerakan air dalam tanah dipengaruhi oleh sifat-sifat fisik tanah. Perubahan penggunaan lahan sangat mempengaruhi sifat-sifat fisik tanah. Perubahan penggunaan lahan dan perbedaan sifat – sifat dasar tanah yang meliputi alih fungsi lahan yang semula ada vegetasi menjadi lahan yang tak ada atau minim vegetasi mengakibatkan laju infiltrasi dan perkolasi pada tanah menjadi berubah dan memungkinkan terjadinya proses infiltrasi yang cukup besar, menyebabkan semakin berkurangnya daerah resapan air hujan secara langsung dan penurunan ketersediaan air tanah. Pengukuran pergerakan air dalam tanah kondisi jenuh atau Konduktivitas Hidrolik Jenuh tanah (KHJ) sangat penting karena KHJ berperan dalam penentuan limpasan air, infiltrasi, dan perkolasi. Penelitian bertujuan untuk mengetahui besarnya nilai konduktivitas hidrolik jenuh tanah di berbagai penggunaan lahan dengan menggunakan metode constant head dan sifat fisik tanah meliputi tekstur tanah, berat isi, berat jenis, dan porositas di 5 penggunaan lahan pada 3 kedalaman tanah yang berbeda. Penelitian dilaksanakan di area Kelurahan Sumbersari pada bulan Desember 2008 hingga bulan Oktober 2009. Penelitian pengaruh sifat fisik tanah terhadap KHJ dengan menggunakan metode constant head pada 5 penggunaan lahan yaitu pemukiman penduduk (T1), lapangan (T2), kebun tomat (T3), semak belukar (T4), sawah irigasi (T5) pada 3 kedalaman yang berbeda yaitu 0-15 cm (K1), 15-30 cm (K2), dan 30-45 cm (K3). Sifat fisik tanah yang dianalisis antara lain tekstur tanah, berat isi, berat jenis, porositas, dan kadar air tanah. Hasil penelitian menunjukkan bahwa nilai KHJ tertinggi pada seluruh titik lokasi adalah lokasi sawah irigasi dengan kedalaman 30-45 cm. Faktor utama yang mempengaruhi nilai KHJ adalah nilai berat isi. Sifat-sifat fisik tanah yang mempengaruhi nilai KHJ adalah tekstur tanah dan porositas tanah. Hasil penelitian direkomendasikan sebagai acuan KHJ penggunaan lahan lokasi lain dengan kondisi dan sifat fisik tanah yang sama.

Aplikasi Metode Microwave Hydrodistillation pada Ekstraksi Minyak Atsiri dari Bunga Kamboja (Plumeria alba) Nove Kartika Erliyanti; Erwan Adi Saputro; Rachmad Ramadhan Yogaswara; Elsa Rosyidah
Jurnal IPTEK Vol 24, No 1 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i1.865

The aim of this study is to determine the effect of microwave power and solvent volume to the density of Frangipani essential oil, and to determine the yield effect of mass of raw material on Frangipani essential oil. Frangipani flowers that have been cut in the size of ± 2 cm are extracted in the microwave with a mass of 25 gr and 50 gr, volume of solvents is 300, 400, 500, and 600 ml. The extraction process uses microwave power of 300, 450, and 600 watt and the extraction time is three hours. The results showed that the effect of microwave power and the volume of solvent had a significant effect on the density of Frangipani flower essential oils. The result showed that the density is increase when the microwave power and the volume of solvent increase. The highest density is produced at 600-watt microwave power, 600 ml solvent volume, and 50 gram of Frangipani flower mass that is equal to 0.904 gram/ml. Yield decreases with increasing mass of raw material used. The highest yield was produced at 600-watt microwave power, 600 ml solvent volume, and 25-gram Frangipani mass, which is equal to 1.612%.C

Entrepreneurship in Green Energy: A Review Agung Purnomo; Nur Afia; Elsa Rosyidah
Syntax Idea Vol 5 No 8 (2023): Syntax Idea
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/syntax-idea.v5i8.2524

Entrepreneurship in green energy is highly required to ensure everyone can access energy, energy efficiency improvements, renewable energy sources, and increased public and private awareness. This paper attempts to review the body of knowledge and research on entrepreneurship in green energy. Using a systematic literature review of the PRISMA guidelines for conducting and reporting systematic reviews. Several peer-reviewed publications were included following a thorough search of the Scopus databases. The findings demonstrate several publications on entrepreneurship in green energy from the quantitative analysis and perspective analysis. The number of research-related publications each year on entrepreneurship in green energy has been an upward trend. The United States was the top research nation. The most intensive topics of green energy and entrepreneurial industry sectors were bioenergy and financial. This research provides information that has opportunities to be carried out, including research on entrepreneurship in the field of green energy, with the topic of marine energy, geothermal energy, and the health industry sector.

Understanding the Nexus between Green Entrepreneurship and Green Economy: A Review Agung Purnomo; Nur Asitah; Elsa Rosyidah
Journal of Economics and Business UBS Vol. 12 No. 4 (2023): Journal of Economics and Business UBS
Publisher : UniSadhuGuna Business School

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52644/joeb.v12i4.444

The role of green entrepreneurship is sufficient to realize a green economy. This study aims to understand the existing literature and research on green entrepreneurship in the green economy. The literature was reviewed systematically following the PRISMA guidelines for performing and reporting systematic literature reviews. Some reviewed articles were included based on a systematic search of the Scopus database. The research agenda was provided using quantitative, multilevel, and management perspective analysis. Continental Europe has made the most contributions to this field. The developments in green entrepreneurship research in the green economy can be attributed to several factors, such as environmental concern, SDGs, resource efficiency, climate change mitigation, innovation, social inclusion and measurement. Further research can be carried out using the team level by connecting the management perspective of finance, operation and human resource.

Entrepreneurship in Green Energy: A Review Agung Purnomo; Nur Afia; Elsa Rosyidah
Syntax Idea Vol 5 No 8 (2023): Syntax Idea
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/syntax-idea.v5i8.2524

Entrepreneurship in green energy is highly required to ensure everyone can access energy, energy efficiency improvements, renewable energy sources, and increased public and private awareness. This paper attempts to review the body of knowledge and research on entrepreneurship in green energy. Using a systematic literature review of the PRISMA guidelines for conducting and reporting systematic reviews. Several peer-reviewed publications were included following a thorough search of the Scopus databases. The findings demonstrate several publications on entrepreneurship in green energy from the quantitative analysis and perspective analysis. The number of research-related publications each year on entrepreneurship in green energy has been an upward trend. The United States was the top research nation. The most intensive topics of green energy and entrepreneurial industry sectors were bioenergy and financial. This research provides information that has opportunities to be carried out, including research on entrepreneurship in the field of green energy, with the topic of marine energy, geothermal energy, and the health industry sector.

PENGELOLAAN PENGOLAHAN SAMPAH ORGANIK DAN LINDI DI TPST DESA TULANGAN SIDOARJO Atik Widiyanti; Yanuar Risah Prayogi Prayogi; Elsa Rosyidah; Laily Noer Hamidah; Ardhana Rahmayanti; Awang Andhika
Journal of Science and Social Development Vol. 3 No. 2 (2020): Journal of Science and Social Development
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jossd.v3i2.384

Tulangan Village is one of the villages located in Tulangan District, Sidoarjo Regency, East Java. The total population in Tulangan Village is 4818 people. So it is estimated that the average population of Tulangan Village produces more than 1,445.4 kg of waste / day. Currently, the TPST of Tulangan Village serves waste management for all residents of Tulangan Village. Until now, organic waste processing at TPST is carried out by composting. Meanwhile, leachate processing is only carried out by simple storage. To overcome this problem, the activities carried out are training in organic waste and leachate processing. Based on the results of the questionnaire, it was found that seven residents understood organic waste processing and seven people understood leachate processing.

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