16 research outputs found
Pengaruh Jenis Zat Pengatur Tumbuh Terhadap Pertumbuhan 3 Varietas Anggur (Vitis Vinifera L.) Hasil Stek Cabang
No full textAnggur varietas Alphonso Lavalle mulai kurang diminati karena rasa buah dari varietas Alphonso Lavalle masam, sehingga minat masyarakat terhadap varietas ini menjadi menurun. Untuk mengurangi import buah anggur, melalui Keputusan Menteri Pertanian RI No.: 600/Kpt/SR.120/11/2007 tanggal 7 November 2007 varietas Prabu Bestari ditetapkan sebagai varietas unggul di Kota Probolinggo. Rasa buah pada varietas Prabu Bestari manis segar, bentuk buah yang besar dan warna buah kemerahan. Varietas Prabu Bestari memiliki daya tarik tersendiri oleh masyarakat penikmat buah anggur. Namun, terjadi penurunan produksi pada varietas Prabu Bestari yang diakibatkan oleh faktor lingkungan yaitu curah hujan. Anggur di Probolinggo tetap unggul dipertahankan dengan menanam jenis anggur yang tahan terhadap iklim tetapi, terkendala oleh persediaan bibit. Jenis anggur tersebut ialah Alphonso Lavalle, Belgie/BS 88, dan Jestro Ag45. Dalam usaha mendapatkan bibit unggul, terdapat berbagai teknik perbanyakan tanaman anggur, salah satunya perbanyakan vegetatif dengan stek. Dalam upaya pembiakan secara vegetatif dengan tujuan untuk memperoleh persen tumbuh tanaman yang tinggi, adanya peningkatan sistem pertumbuhan perakaran, serta bibit tanaman yang ditanam lebih mampu dan cepat beradaptasi dengan lingkungan yang baru perlu dilibatkan pula penggunaan zat pengatur tumbuh. Zat pengatur tumbuh yang digunakan ialah Rootone-F dan air kelapa. Rootone-F merupakan salah satu zat pengatur tumbuh sintesis yang sering digunakan dalam upaya pembiakan secara vegetatif yang berguna untuk mempercepat dan memperbanyak keluarnya akar-akar baru. Untuk meningkatkan persentase tumbuh bibit anggur adalah dengan mengaplikasikan Rootone-F dalam bentuk pasta secara dioles. Air kelapa merupakan salah satu zat pengatur tumbuh alami yang lebih murah dan mudah didapatkan dan juga telah lama dikenal sebagai zat pengatur tumbuh. Untuk meningkatkan persentase tumbuh bibit anggur adalah dengan mengaplikasikan air kelapa secara direndam. Tujuan dari penelitian ini ialah untuk mempelajari jenis zat pengatur tumbuh alami dan zat pengatur tumbuh sintesis yang memberikan respon terbaik terhadap keberhasilan dalam perbanyakan stek 3 varietas anggur. Hipotesis dari penelitian ialah 1) zat pengatur tumbuh alami berpengaruh terhadap persentase keberhasilan dalam perbanyakan stek 3 varietas anggur, 2) zat pengatur tumbuh alami lebih baik daripada zat pengatur sintesis terhadap keberhasilan dalam perbanyakan stek 3 varietas anggur. Penelitian dilaksanakan pada akhir bulan Februari 2015 sampai Mei 2015 di Desa Banjarsari, Kecamatan Sumberasih, Kabupaten Probolinggo. Percobaan dilakukan dengan menggunakan Rancangan Acak Kelompok (RAK) yang terdiri dari 9 perlakuan dengan 3 ulangan sehingga diperoleh 27 petak percobaan. Parameter pengamatan dilakukan secara non destruktif pada umur 6, 8, 10, dan 12 ii mst yang meliputi persentase keberhasilan tumbuh (%), saat muncul tunas (hst), jumlah tunas, panjang tunas (cm), jumlah daun (helai), dan luas daun (cm2), sedangkan pengamatan destruktif dilakukan pada umur 8, 10, 12, dan 14 mst yang meliputi jumlah akar, panjang akar (cm), bobot kering akar per tanaman (g), dan bobot kering tunas per tanaman (g). Data yang diperoleh dianalisis dengan menggunakan analisa ragam (ANNOVA) dan dilakukan dengan uji F dengan taraf 5%, apabila terdapat perbedaan nyata dari perlakuan maka hasil analisis diuji lanjut dengan BNT 5%. Berdasarkan hasil penelitian yang telah dilaksanakan dapat disimpulkan bahwa zat pengatur tumbuh alami air kelapa konsentrasi 20% mampu menghasilkan keberhasilan tumbuh 26% varietas Alphonso Lavalle, 33% varietas Belgie, dan 8% varietas jestro Ag45 dibanding penggunaan air kelapa konsentrasi 10% dan Rootone-F. Aplikasi air kelapa konsentrasi 20% mampu meningkatkan panjang tunas, jumlah daun, luas daun, jumlah akar, panjang akar, bobot kering akar per tanaman, bobot kering tunas per tanaman dibanding penggunaan air kelapa konsentrasi 10% dan Rootone-F pada 3 varietas anggur
The Efficiency of Garlic Supply Chain Actors Measured using Data Envelopment Analysis (DEA) Method in Karanganyar, Indonesia
No full textOne of the obstacles to the development of agribusiness is related to supply chain management. The availability of supply is the most important factor in influencing supply chain performance. Without a stable and routine supply, supply chain performance will be disrupted. Karanganyar Regency is one of the production centers of horticultural commodities, particularly garlic. This study aimed to analyze the efficiency of each garlic supply chain actor in Karanganyar Regency. The research was conducted from March to April 2019. The efficiency of each supply chain actor in this study was measured using Data Envelopment Analysis (DEA) method. Performance measurement was done through the DEA approach and the performance attributes were input and output variables. The respondents observed were 50 farmers and 13 supply chain actors working in institutions. The samples of farmers were taken using purposive sampling technique, while the samples of supply chain actors were obtained using snowball sampling. The results have shown that the most efficient supply chain actors were retailers with an efficiency value of 1 (100%), while inefficient supply chain actors were farmers with an average efficiency value of 0.709. From a total of 50 Decision Making Unit (DMU) of total farmers, 13 DMU (26%) were efficient, while 37 DMU (74%) were inefficient and further need improvements, like using certified seeds and suitable fertilizer recommendations, as well as reducing external labor during the process of maintenance, harvesting and post-harvest. Farmers are expected to have the desire to learn from referral farmers
PENGARUH JENIS ZAT PENGATUR TUMBUH TERHADAP PERTUMBUHAN 3 VARIETAS ANGGUR (Vitis vinifera L.) HASIL STEK CABANG
No full textAnggur di Probolinggo tetap unggul dipertahankan dengan menanam jenis anggur yang tahan terhadap iklim tetapi, terkendala oleh persediaan bibit. Air kelapa memiliki manfaat untuk meningkatkan pertumbuhan tanaman. Penelitian ini ber-tujuan untuk mempelajari jenis zat pengatur tumbuh alami dan zat pengatur tumbuh sintesis yang memberikan respon terbaik terhadap keberhasilan dalam perbanyakan stek 3 varietas anggur. Penelitian dilaksana-kan pada bulan Februari hingga Mei 2015 di Desa Banjarsari, Kecamatan Sumberasih, Kabupaten Probolinggo. Penelitian meng-gunakan rancangan acak kelompok ( RAK). Pengamatan tanaman meliputi persentase keberhasilan tumbuh (%), saat muncul tunas (hst), panjang tunas (cm), jumlah daun (helai), luas daun (cm2), jumlah akar, panjang akar (cm), bobot kering total akar (g), dan bobot kering total tunas per tanaman (g). Hasil penelitian menunjukkan zat pengatur tumbuh alami air kelapa konsentrasi 20%, mampu menghasilkan keberhasilan tumbuh 26% varietas Alphonso Lavalle, 33% varietas Belgie, dan 8% varietas Jestro Ag45 dalam perbanyak-an 3 varietas anggur dibanding penggunaan air kelapa konsentrasi 10% dan Rootone-F. Aplikasi air kelapa konsentrasi 20% mampu meningkatkan panjang tunas, jumlah daun, luas daun, jumlah akar, panjang akar, bobot kering akar per tanaman, bobot kering tunas per tanaman dibanding penggunaan air kelapa konsentrasi 10% dan Rootone-F pada 3 varietas anggur
Improving the seismic performance of a cold-formed and hot-rolled steel wall system equipped with a novel curved steel-composite dampers
No full textThe enhancement of seismic performance in mid-rise structures often involves the utilization of hybrid structural systems. Among these, the combination of cold-formed steel (CFS) and hot-rolled steel (HRS) wall systems has been proposed to achieve the desired seismic performance level by effectively controlling lateral forces. This study focuses on the numerical analysis of a novel bracing system equipped with curved steel-composite dampers within a hybrid wall panel (HWP). The objective is to improve energy dissipation, stiffness, and frame strength during displacement control cyclic loading protocol. The investigation evaluated seismic performance of an HWP equipped with the novel curved steel dampers oriented at six different angles (30°, 45°, 55°, 60°, 65°, and 75°), with two different thicknesses (10mm and 13mm) and three different depths (30mm, 40mm, and 50mm). The aim is to determine the most efficient damper geometry to enhance the seismic performance of the HWP frame. The results show that the energy dissipation, frame strength, and elastic stiffness are improved significantly when using (a) a 75° damper with 10 mm thickness and 40 mm depth or (b) a 55° damper with 13 mm thickness and 40 mm depth at the top of the hot-rolled section. In the second phase of the study, a novel chevron bracing system equipped with proposed curved steel dampers is designed and introduced to improve the seismic performance of the HWP frame by increasing the energy dissipation and frame strength of HWP as well as improving the buckling areas in hot-rolled section compared with using the proposed curved steel dampers solely on the hot-rolled section of the HWP during the cyclic loading protocol. The same damper configuration for angle, thickness, and depth has been used to increase the accuracy of the comparison, as well as the same cyclic loading protocol to achieve the most accurate results. The results indicate significant improvements in energy dissipation, frame strength, and buckling areas of the HWP frame when using the novel bracing system equipped with a 75° damper featuring a thickness of 13mm and a depth of 30mm compared with HWP without dampers and HWP equipped with proposed curved steel dampers. In the third phase of the study, a novel approach was introduced by designing curved composite dampers. This involved the use of three different composite patterns by using Aluminum, Gray Cast Iron, and Copper as composite materials combined with steel and three varying core thicknesses for composite combinations. Improved configurations for curved composite dampers were developed for both HWP equipped with the chevron bracing system and curved steel-composite dampers, as well as HWP equipped solely with curved dampers at the top of the hot-rolled section. The results demonstrated that employing curved steel-composite dampers had direct and positive impacts on improving the seismic performance of the HWP for both bracing systems when compared to the same bracing method with curved steel dampers and novel composite combinations were introduced for each bracing system, and curved dampers.Embargo status: Restricted until 06/2174. To request the author grant access, click on the PDF link to the left
ANALISIS SENTIMEN ULASAN PENGGUNA APLIKASI JASA OJEK ONLINE MAXIM PADA GOOGLE PLAY DENGAN METODE NAÏVE BAYES CLASSIFIER
No full textIn this age of digitalization, public transportation has developed, such as the creation of Online Transportation or commonly called Online Ojek. Online transportation is clear evidence of the development of application-based technology. Now with the Online ojek service can provide convenience in ordering ojek. Currently, more and more online ojek service companies are emerging, one of which is Maxim. Maxim has been enjoyed by approximately 47 cities in Indonesia. Maxim is also famous for its relatively affordable price. With the many enthusiasts of the Maxim application, the author is interested in conducting Sentiment Analysis on this application. Sentiment Analysis is done by analyzing user reviews of the Maxim application on the Google Play Store with the Naïve Bayes Classifier method. The author conducts this research, namely to find out the opinions or opinions of users which can later be used as input for application developers so that later the Maxim application can continue to be improved in terms of quality. The results showed that the Maxim application received many positive comments, but there were also some negative comments that could be used as evaluation material for the application developer
ANALISIS PENGARUH KEMAMPUAN KERJA, MOTIVASI KERJA, DAN LINGKUNGAN KERJA TERHADAP KINERJA PEGAWAI DENGAN MENGGUNAKAN PENDEKATAN PARTIAL LEAST SQUARE (PLS) (Studi Kasus: Dinas Perindustrian, Perdagangan dan Energi Sumber Daya Mineral Kabupaten Jember)
No full textJika membutuhkan abstrak silahkan menghubungi author melalui email [email protected], [email protected], [email protected] Â Terima kasi
Studi Kasus Pelaksanaan Investigasi Kecelakaan di PT. Swastisiddhi Amagra Pekanbaru Tahun 2021
No full textAccidents are possible. However, these accidents can be prevented by conducting accident investigations. Accident investigation is important because in order to analyze accidents that have occurred so as to reduce the potential for the same accident to occur at a later time if the implementation is good and correct. This is the background of the author to examine how the implementation of the investigation at PT. Swastisddhi Amagra Pekanbaru. This research is a qualitative descriptive study using a case study method that produces descriptive data in the form of written or spoken words in a depiction. The subjects in this study were 9 people consisting of K3 Experts, foremen, and supervisors with several considerations that made them research subjects. Data collection methods used are interviews and observations. The results show that the company has carried out accident investigations well but not optimally. However, in accordance with the Peraturan Menteri Tenaga Kerja RI No. Per-03/MEN/1998/ concerning Procedures for Reporting and Inspection of Accidents. The type of accident, the cause, and the prevention of the accident can also be known by the company as a result of the accident investigation. However, the weakness found is that some workers do not use the complete Personal Protective Equipment provided by the company which triggers the same accident to occur. From this discussion, suggestions that can be given are for the foreman at each station and K3 experts to be more strict and firm to workers in terms of using PPE and providing signs for machines and the work environment.104 HalamanSkripsi Sarjan
Community Service as a Means of Engineering Inspiration: An Initial Investigation into the Impact of the Toy Adaptation Program
No full text2016 ASEE Annual Conference & Exposition, New Orleans, Louisiana, June 26-29, 2016For many first-year engineering students, what it means to be an engineer is an abstract concept. Introducing major-related classes early in an engineer’s education helps students answer, “what is an engineer?” However, these classes often lack connections between engineering and society. Additionally, current courses do not always effectively support students in becoming experienced problem solvers. To address the connection between engineering and society and to help students develop their confidence in problem solving, the Toy Adaptation Program (TAP) provides students with a hands-on experience modifying electronic toys for children with special needs. These adapted toys are donated to toy-lending libraries and families in-need, so that families are not burdened with the increased cost and inconvenience of purchasing marked-up adapted toys from select toy manufacturers. For this “In Progress” paper for the Community Engagement in Engineering Education Division, we will introduce the program in its current format along with our assessment techniques and next steps.This work is currently supported by the Battelle Engineering, Technology, and Human Affairs (BETHA) Endowment. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the BETHA Endowment.https://monolith.asee.org/public/conferences/64/papers/14642/vie
www.atmos-chem-phys.net/14/8043/2014/ doi:10.5194/acp-14-8043-2014 © Author(s) 2014. CC Attribution 3.0 License. Assessing the regional impact of indonesian biomass burning emissions based on organic molecular tracers and chemical mass balance modelin
Complementary Reading Materials Development: Successes and Challenges of the Read Malawi Programme
No full textThe Textbooks and Learning Materials Programme at the University ofTexas at San Antonio collaboratively designed and developed learningand teaching materials for Malawi schoolchildren. Three goals drove ourwork: (a) develop learning and teaching materials, focusing on languageinstruction for Standards 1 – 3; (b) develop an implementation model,including teacher training, school monitoring and community mobilization;and (c) develop instruments to detail the programme feasibility. Wetrained Malawian teachers to teach and author new complementaryreading materials in both Chichewa and English. The implementationmodel included supporting materials to aid teachers, such as Overviewand Teacher’s Guides. An extensive school and community-based supportsystem was set-up to monitor, analyze and report the programme’seffectiveness. There were logistical and communication challenges thathindered progress, like power-outages and delivery delays. However, therewere also many successes of increased teacher self-efficacy, decreasedstudent absenteeism and a possible model for future programmes.Keywords: learning and teaching materials, Malawi schoolchildren,community mobilization, community-based support system
