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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Forum Pasca Sarjana Jurnal Ilmu Lingkungan Jurnal Keteknikan Pertanian Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Tataloka Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Hidrosfir Indonesia JURNAL TEKNIK HIDRAULIK JURNAL SUMBER DAYA AIR J-Sil (Jurnal Teknik Sipil dan Lingkungan)

Nora H. Pandjaitan

Departemen Teknik Sipil Dan Lingkungan, IPB University

Author-ID : 271741

Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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Analisis Tingkat Kepuasan Anggota dan Strategi Pengembangan Koperasi (Studi Kasus Koperasi Kredit Sehati Jakarta) Leonardi Pratama; Aida Vitayala S Hubeis; Nora H Pandjaitan
MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Vol. 12 No. 1 (2017): Manajemen IKM
Publisher : Institut Pertanian Bogor

Improving member satisfaction is very important to be taken by credit unions because the cooperative benefit taken from the provision of credit to members. The purpose of this research is (1) determine the level of interest and the level of performance Kopdit Sehati, (2) determine member satisfaction Kopdit Sehati, (3) develop alternative strategies Kopdit pegembangan Sehati. The method used in this study is descriptive analysis, Importance Performance Analysis (IPA), Customer Satisfaction Index (CSI) Internal Factors Evaluation (IFE), External Factor Evaluation (EFE) Analysis Internal External (IE) and the Strengths, Weaknesses, Opportunities and Threats (SWOT). The number of respondents in this studies as many as 100 members of the cooperative. The analysis showed that the overall level of performance Kopdit Sehati (3.98) still does not meet the expected level of interest by members of (4.14). Based on the attributes of IPA obtained priority for repair that Kopdit services using information technology media, availability of information brochures, Kopdit have professional managers, innovation of products offered, the education for members and establish communication with members as well. Based on the calculation of CSI, the service level of 79.78 percent Kopdit Sehati. This means that the level of satisfaction index Sehati Kopdit member located between the range of 0.66 to 0.80, which means members are satisfied with the performance of services Kopdit Sehati. After weighting and scoring through IFE matrix (2.64) and matris EFE (2.86). IE matrix shows that the position Kopdit Sehati is in cell V, can be managed with a strategy to maintain and sustain namely by using market penetration strategies and product development could be the most appropriate for Kopdit Sehati. The development strategy Kopdit Sehati generated from SWOT Matrix and QSPM obtained five priorities suggested strategies are: (1) Development of branch offices and place of service members, (2) Innovation product savings and loans (3) Increase the dissemination of cooperatives to the community, (4) Increases number of employees, and (5) Increase the effective promotion activities.

Prospek Usaha Pembuatan Arang Tempurung Kelapa (Studi kasus UD. Beringin Jaya) Subandiyono Subandiyono; Bambang Pramudya; Nora H Pandjaitan
MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Vol. 2 No. 1 (2007): Jurnal Magister Profesional Industri Kecil Menengah
Publisher : Institut Pertanian Bogor

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A coconut plant has a comparatively competitive advantage compared to other estate commodities due to its highly competitive advantage of each part of this plant for human lives. One example is a coconut industry that performs processing of husk, hard shell, coconut meat, and coconut liquid (horizontal diversity) and further processing of other parts into various products, either as raw materials or other supplementary materials for other industries (vertical diversity). One of the products from the hard shell with its vertical diversity, which has high economic value, is the processing of hard shell into charcoal, which is the raw material for industries of active coal for export. This study aims to evaluate the prospect of the coconut coal production business and identify necessary information required for the business development. All the information regarding the data of this study was analyzed by Strength, Weaknesses, Opportunities and Threats (SWOT) and feasibility aspect by using Net Present Value (NPV), Internal Rate of Return (IRR), Break Event Point (BEP), Payback Period (PBP) and Benefit Cost Ratio (B/C). The results of the study show that the operation of 3-6 processing units to produce coconut charcoal was considered prospective and feasible, as it was shown by its NPV of IDR 259,675,377, IRR of 99.3%-105.0%, BEP of 461,01 kg – 651,42, 1 year PBP and B/C Ratio of 3.14 – 3.42. Another aspect is that the availability of coconut charcoal production unit such as the of Beringin Jaya, doing business in this line, although located in an isolated area, can offer job opportunities for the local people.

Analisis Tekno Ekonomi Industri Kecil untuk Akses ke Lembaga Perbankan (Studi Kasus Pada Perusahaan Kecap Damai di Purwokerto) Bambang Sumpeno; Rizal Syarief; Nora H Pandjaitan
MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Vol. 3 No. 1 (2008): Jurnal Magister Profesional Industri Kecil Menengah
Publisher : Institut Pertanian Bogor

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In 1997 Indonesia experienced an economic crisis which is started with the decrease in value of Rupiah towards the US Dollar. Many industries were closed, but a lot of small and medium scale industries survived and still exist until now. One of them is “Damai” kecap industry in Purwokerto. For most of small and medium scale industries, the limited capital is one of the problems to developing their business. There were several requirements to gain access to banking services, such as current ratio (CR), debt equity ratio (DER) and value of warranty. To establish a kecap industry a working capital of Rp. 62.099.500,- is needed to fulfill a one-month operational cost. Fixed assets require approximately Rp. 211.350.000,- (excluding land), so the total capital needed is Rp. 273.449. 500,-. The marketing analysis shows that the break-even point (BEP) of the kecap industry is 14.625 bottles or approximately Rp. 68.471.671,-, and CR is 165,90%. It means that the kecap industry should be able (liquid) to settle current liabilities from its current assets. The banks ask for a minimum current ratio of 120,00%. DER of this kecap industry is 20,45%, which means that the kecap industry has enough capital to settle its liabilities. The banks ask for maximum DER of 200,00%. In order to enlarge its business, the industry needs to increase its capacity. It means that “Damai” kecap Industry needs an extra credit from bank or kecap industry can cooperate with the third party as investor. An industry needs a lot of time to gain credit from a bank. The “Damai” kecap Industry can obtain extra credit of Rp. 100.000.000,- from its land and building because their value is more than Rp. 400.000.000,-.

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The aim of the research is to evaluate the effectiveness of micro fertigation system and application of cows fermented urine (uriferm) for chili (Capsicum annum sp.) Cultivation. The micro fertigation system with 0.5 mm inside diameter micro-tubing is used to control the flow from outlets along lateral. The lateral with 5/16 inch inside diameter is made of soft PVC hose. The result of the research showed that the micro fertigation system is running well. Randomized block design with four replications are used for the field experiment. There are four treatments i.e. conventional culture by watering can (A), uriferm fertigation (B), non uriferm fertigation (C), and Hartus formula fertigation (D). The laboratory analysis showed that the properties of uriferm increase in composition compared to non uriferm and used successfully as nutrition. The micro fertigation system showed better result compared to the watering can on variable observation of plant and root development of chili. The field experiments showed that the micro fertigation system significantly reduced volume of water used by 49.5% and raised chili yield by 61.2% compared to watering can. The uriferm fertigation (B) showed better result compared to other treatments on wet weight of chili and water productivity. The total income from 390 m2 irrigated land with micro fertigation system was about Rp 2,961,700,00/season and feasible to apply with B/C ratio = 1.51, IRR value = 27.49% and NPV = Rp 387,413.83 at discount rate 9% per annum. Key words: micro fertigation system, uriferm, chili, water productivity, small plots

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Sustainable agriculture development requires a high quality and proper land management in order to promote high farmer’s income and to prevent natural resources degradation. This research was conducted in Nopu sub-watershed, a sub sub Gumbasa watershed, Central Sulawesi Province. The erosion and surface run off were observed by placing erosion plots on various ages of cocoa land uses (monoculture and agroforestry), whiles the soil quality indicators were observed by analyzing the physical and chemical properties of soil samples, which were collected from various ages of cocoa land use. The soil profile permeability and soil surface coverage were directly observed on the field. Production and farmer’s income of various cocoa land use systems in Nopu watershed were collected by using questioners. Sustainable management of cocoa (monoculture and agroforestry) was formulated by using various scenarios. Results of the study showed that 1) forest conversion into cocoa land use decreased soil quality degradation, tended to increase soil erosion and run off; 2) to establish a sustainable cocoa farming system in Nopu watershed, there should be practiced a proper and equilibrium fertilization, application of adequate soil and water conservation techniques such as mulching and construction of ditches closed (rorak) and ridges (sengkedan). Key words: cocoa, erosion, farmer’s income, forest conversion, soil quality

Analisis Bangunan Pengendali Sedimen Dengan Menggunakan Model Soil And Water Assessment Tool Pada Sub-Daerah Aliran Sungai Citanduy Hulu, Jawa Barat Said Karim; Nora H. Pandjaitan; Asep Sapei
JURNAL TEKNIK HIDRAULIK Vol 5, No 2 (2014): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Analisis Kandungan Karbon Organik Dalam Sedimen Di Sungai Jeneberang Pada Bagian Hulu Dengan Mempergunakan Model Soil Ans Water Assesment Tool Ifah Latifah; M. Yanuar Purwanto; Nora H Pandjaitan
JURNAL TEKNIK HIDRAULIK Vol 4, No 2 (2013): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Pengelolaan daerah aliran sungai (DAS) bagian hulu merupakan kunci keberhasilan untuk mencapai ketersediaan air yang berkelanjutan. Selain itu kesalahan dalam mengelola lahan akan menyebabkan erosi yang dapat meningkatkan sedimentasi di badan air. Akibat erosi tanah sisa-sisa tanaman yang telah melapuk menjadi humus juga ikut tererosi. Hal ini akan mengakibatkan hilangnya karbon di lahan yang tererosi dan masuk ke perairan. Model Soil Water Assessment Tool dapat diaplikasikan untuk mengevaluasi kondisi sedimen dan karbon organik di daerah tangkapan air dengan menggunakan data historis aliran dan meteorologi. Tujuan dari kajian ini adalah untuk mengidentifikasi parameter-parameter model Soil Water Assessment Tool yang sesuai untuk menduga laju sedimen dan menganalisis fluktuasi sedimen di sungai Jenebrang bagian hulu serta mengkaji kandungan karbon organik dalam sedimen. Proses kalibrasi dilakukan dengan menyesuaikan 26 parameter dengan menggunakan Algoritma SUFI2. Dari hasil kalibrasi dapat diidentifikasi 19 parameter yang sensitif. Hasil simulasi sedimen pada bulan basah lebih tinggi dibandingkan pada bulan kering. Fluktuasi karbon organik sama dengan fluktuasi sedimen. Berdasarkan hubungan tersebut, karbon organik dalam jangka panjang dapat diduga dari hasil simulasi sedimen dengan menggunakan model Soil Water Assessment Tool.

Prediksi cadangan air tanah berdasarkan hasil pendugaan geolistrik di Kabupaten Grobogan, Jawa Tengah Ngudi Aji Jaka Yuwana; Nora Herdiana Pandjaitan; Roh Santoso Budi Waspodo
JURNAL SUMBER DAYA AIR Vol 13, No 1 (2017)
Publisher : Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

One of the solutions for water shortage in Grobogan District is groundwater utilization. Excessive groundwater pumping will decrease groundwater level and trigger a landsubsidence. It is necessary to conduct hydrogeological study to determine the groundwater storage in this area. The purpose of this research were to determine the hydrogeological conditions, aquifer characteristics and potential of groundwater storage in Grobogan district. This research used geoelectrical method to identify rock characteristics. The results showed that the geological formation in Grobogan district consisted of Qa, Tmpk, Tmpl, Tps, Tmw and Qp. Grobogan district had 5 aquifers system, there are: poorly productive aquifers, moderately productive aquifers, locally productive aquifers, extensive productive aquifers and region without exploitable groundwater. The aquifer layer consisted of sand, marl sandy, silty sand and calcareous sand. The unconfined aquifer was located at 1,2 - 58 m from soil surface with average thickness of 13,54 m and the hydraulic conductivity of 3,54 m/day. The confined aquifer depth can be estimated between 29 - 174 m from soil surface with average thickness of 37,4 m and the hydraulic conductivity of 3,87 m/day.The predicted groundwater storage in Grobogan district of unconfined aquifer was 401,33 l/sec and confined aquifer was 1.804,95 l/sec.

DESIGN OF ZERO RUNOFF SYSTEM AT IPB DARMAGA CAMPUS, BOGOR, WEST JAVA Muhammad Ihsan; Budi Indra Setiawan; Nora H Pandjaitan
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 1: April 2016
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Bogor Agricultural University (IPB) Campus is an urban area that experienced flooding when heavy rain occurred, especially at Graha Widya Wisuda (GWW)’s parking lot, Kamper Street (FEMA), Meranti Street, and Tanjung Street. The drainage system of IPB campus is a conventional system. It drain surface runoff as fast as possible to the outlet. Zero Runoff System (ZROS) is one of technologies to minimize runoff using water storage. The advantages of ZROS are runoff minimization, local aquifer’s recharge, and damage mitigation on public facilities. This research aimed to design ZROS at IPB Campus that capable to minimize surface runoff. This research started by water catchment area (WCA) delineation, design rainfall and peak runoff analysis, infiltration rate measurement, and ZROS design calculation. Based on frequency analysis the design rainfall was 125.68 mm. Sub-sub-WCA 1-1C (3 locations), 1-1B, 2-1B, and 2-2A were the flooding’s location. Water pocket is the proposed technology to be applied in ZROS. To mitigate flooding, sub-sub-WCA 1-1B, 1-1C, 2-1B, and 2-2A needed 44 units of water pockets with length of 1.20 m (sub-sub-DTA 1-1B, 2-1B, dan 2-2A) and 1.60 m (sub-sub-DTA 1-1C), with depth ranged from 2.41 m to 3.40 m. Keywords: drainage, flood, runoff, water balance, ZROS

Analisis Kapasitas Sistem Saluran Drainase Di Perumahan Dramaga Cantik 2 Kabupaten Bogor Muhammad Raka Qintana; Nora H Pandjaitan; Sutoyo Sutoyo
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 2: Agustus 2019
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Bogor is a city with a high rainfall. Bogor has the average monthly rainfall of 267.3 mm with an average of 16 days of rain per month. This research purpose are to identify the condition of the existing drainage channels and to analyze the magnitude of runoff discharge compliance with existing drainage channels capacity. This research was conducted from May to August 2017 in Dramaga Cantik 2, Bogor, West Java, were analyzed using EPA SWMM 5.1. Based on the rainfall data processing of Dramaga area, Bogor, this research used distribution method of Log Pearson III. The result showed that maximum rainfall was 129.722 mm. The result of EPA SWMM 5.1. simulation showed that drainage channel capacity could accommodate the runoff, but channel C24 was overflow. It was suggested to improved channel width to 0.42 m with cost of Rp 2,368,393.00.Keyword: drainage channel capacity, EPA SWMM 5.1, rainfall, runoff

Co-Authors - Rohayati . Prastowo . Saprianto Achmad Yopi Suyitno Pribawanto Ahmad Fausan Aida Vitayala S Hubeis Anari, Oktovianus Anggraini Sukmawati Ano Juhana Anthon Monde Arif Yusron Afifi Asep Sapei Atep Hermawan Avazbek Ishbaev Bambang Pramudya Bambang Sumpeno Beniko Kusumagiri Budi I Setiawan Budi Indra Setiawan Dea Evantri Dedi Kusnadi Denny Jatnika Dharma, I Gede Aditya Ekananda, Fahri Elfrida Ratnawati Elphyson T Eriyatno . Erizal , Ervina, Cordelia Fahri Ekananda Fauziah, Kiki Rizky Grace Natalia Grace Natalia Harun A. Sume Hendrick Tio P. Tambunan Herlika Asriasuri Hidayat Pawitan I Gede Aditya Dharma Ifah Latifah Irsyad Syaifudin Karunia, Titiek Ujianti Kiki Rizky Fauziah Komar Sumantadinata Kukuh Murtilaksono Lanny Syamsir Leonardi Pratama Lilik B Prasetyo M. Riza Januar M. Yanuar Jawardi Purwanto M. Yanuar Purwanto Maulana Ibrahim Rau Maulana Ibrahim Rau Maulana Ibrahim Rau, Maulana Ibrahim Muhammad Ihsan Muhammad Ihsan Muhammad Raka Qintana Muhammad Syamsun Musa Hubeis Muzhaffar Harits Naik Sinukaban Naswir . Netty Kurniadi Ngudi Aji Jaka Yuwana Nicolaus Noywuli Pande Munthe Purwanto, Budi Puty Yousnelly Qintana, Muhammad Raka Rio Caesarion Rizal Syarief Rizal Syarief Roh Santoso Budi Waspodo Said Karim Satyanto Krido Saptomo Soedodo Hardjoamidjojo Subandiyono Subandiyono Suryahadi (Suryahadi) Sutoyo Sutoyo Sutoyo Suwarso Suwarso Titiek Ujianti Karunia Wenda, Datina Yanuar Juardi Purwanto Yuli Suharnoto

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