bluuebunny/crossref_metadata_2025 huggingface dataset:
Çankırı (Orta Anadolu) Yöresi Lütesiyen Ostrakod Faunasının İncelenmesi
Authors: ŞAFAK Ümit
Published: August 2021

Bu çalışmada, Çankırı Havzası’nda 2018 yılında MTA Doğu Akdeniz Bölge Müdürlüğü tarafından kömür arama amaçlı olarak açılmış sondajlardan derlenen örnekler incelenmiştir. Eosen yaşlı birimlerde yapılmış olan sondajlardaki kırıntılı sedimanter örneklerin ostrakod faunası değerlendirilmiştir. Bölgede Lütesiyen sarımsı gri renkli, fosilli, kumtaşı, silttaşı, marn ve kireçtaşı litolojisinden oluşmaktadır. Alt sınırında geç Kretase yaşlı ofiyolit üzerinde uyumsuz bulunan formasyon, üstte uyumlu olarak geç Eosen-erken Miyosen yaşlı İncik Formasyonu’na ait killi-kumlu seviyeleri ile son bulur. Eosen’de yapılmış olan arama çalışmasının kırıntılı sedimanter örnekleri incelenerek ostrakod faunası değerlendirilmiştir. Araştırmada kömür seviyelerinin belirlendiği birim olan Kocaçay Formasyonu’nda ilk kez Lütesiyen yaşlı, sığ denizel ostrakod faunası tanımlanmıştır. Formasyonun ostrakod içeriği ve ortamsal özellikleri bu çalışma ile ortaya konulmuştur. Formasyon içerisinde Vetustocytheridea sp., Schuleridea perforata, Monsmirabilia oblonga, Monsmirabilia faveolata, Monsmirabilia triebeli ve balık otoliti tanımlanmıştır. Formasyonda saptanan ostrakod faunası lagün ve sığ deniz ortamını karakterize etmektedir
Tüketicinin Demografik Özelliklerinin Konut Satın Alma Davranışı Üzerindeki Etkileri
Authors: BAŞ ARAS Hatice Kübra , TANTEKIN CELIK Gozde
Published: August 2021

Tüketicilerin konut satın alma davranışlarının ve bu davranışların altında yatan parametrelerin analiz edilmesi amacıyla yapılan bu çalışmada tüketicinin satın aldığı ya da almayı düşündüğü konutta önem verdiği nitelikler belirlenmiştir. Ayrıca tüketicinin cinsiyet, yaş, medeni durum, eğitim, gelir düzeyi ve meslek gibi demografik özelliklerinin konut tercihleri üzerindeki etkileri araştırılmıştır. Çalışmaya katılanların genelinin ihtiyaç sebebiyle konut satın almayı düşünen ve orta gelir düzeyine sahip bireylerden oluştuğu tespit edilmiştir. Elde edilen hipotez testleri sonuçları değerlendirildiğinde tüketicinin konut tercihinde eğitim durumu ve cinsiyet değişkenlerine göre anlamlı ilişki bulunmuş ancak satın alma kararı, yaş, medeni durum, meslek ve gelir düzeyi değişkenleri ile anlamlı ilişki bulunmadığı gözlenmiştir. Tüketicinin konut tercihlerinde öncelikli olarak konutun depreme dayanıklı olması, konum, ulaşım, odaların yüzölçümü, doğalgaz bağlantısı ve yalıtım gibi konulara önem verdiği; akıllı ev sistemlerinin konutta varlığına ise diğer kriterler kadar ilgi göstermediği görülmüştür. Çalışma sonunda bu bilgiler ışığında yüklenicilere hedef kitlenin belirlenmesi ve pazarlama çalışmaları ile ilgili öneriler sunulmuştur.
Akasya Zamkı (Arabik Gam) ile İyileştirilen Nehir Kumu ve Geri Dönüştürülmüş Kumun Mühendislik Özelliklerinin Araştırılması
Authors: TUNÇ Ufuk , BAĞRIAÇIK Baki , YILDIZ Abdulazim
Published: August 2021

Günümüzde zemin iyileştirme için kullanılan geleneksel katkıların yerine, atık ve doğaya zarar vermeyen alternatif malzemelerin kullanılabilirliği çalışmacıların ilgisini çekmiştir. Bu çalışmada kum zeminlerin geleneksel katkılara alternatif bir katkı olan Akasya zamkı (Arabik Gam-AG) biyopolimerinin zemin iyileştirmede kullanılabilirliği araştırılmıştır. Deneylerde geri dönüştürülmüş kum (GDK) ve nehir kumu (NK) kullanılmıştır. Bu bağlamda, kum zemin numunelerine ağırlıkça %2,5, %5,0, %7,5 ve %10,0 olarak ıslak karışım yapılarak 1, 7, 14 ve 21 günlük kür süreleri için bir seri deney gerçekleştirilmiştir. Sonuç olarak, kür süresi arttıkça standart basınç dayanımlarında kayda değer bir artış ve zeminin permeabilitesinin ise kayda değer oranda düşerek zeminlerin geçirimsiz hale geldiği gözlenmiştir. Bu çalışma ile inşaat yıkıntı atıklarından elde edilen GDK’nın NK yerine kullanılabilecek alternatif bir inşaat malzemesi olarak kullanılabileceği anlaşıldı. Ayrıca AG’nin bu tür zeminlerin mühendislik özelliklerinin çevreye zarar vermeden iyileştirilebileceği de belirlenmiştir.
Studi Evaluasi Kebutuhan Air Irigasi dan Penyusunan Jadwal Pembagian Air pada Daerah Irigasi Nglirip Kabupaten Tuban
Authors: Farid Mochammad Nur Fahrudin , Sayekti Rini Wahyu , Ismoyo M. Janu
Published: August 2021

The Nglirip Irrigation Area has a raw rice field area of 1292 hectares. The problems that occur in the Nglirip irrigation area are lack of water in the dry season and excessive river discharge during the rainy season. This study aims to evaluate irrigation water requirements using the Water Balance method, then plan a cropping pattern to increase cropping intensity when the water discharge is excessive and plan a rotational water distribution schedule using the K factor. From this study, it was found that the maximum mainstay discharge was 2695.57 liters. /sec and a minimum of 485.64 lt/sec, the existing planting intensity area is 274.94% and the plan is 275%, from the existing water balance there is a water deficit of 19 times and a water surplus of 17 times while from the planned water balance there is a deficit of 19 times and 17 times surplus water from 36 planting periods, rotational water distribution with K factor (0.25-0.5) 9 times, K factor (0.5â€“0.75) 7 times, and K factor > 0.75 20 times.Â Daerah Irigasi Nglirip memiliki luas baku sawah sebesar 1292 hektar. Permasalah yang terjadi pada Daerah irigasi Nglirip adalah kekurangan air pada musim kemarau dan debit sungai berlebih ketika musim penghujan. Penelitian ini bertujuan untuk mengevaluasi kebutuhan air irigasi menggunakan metode Water Balance, kemudian direncanakan pola tata tanam rencana untuk meningkatkan intensitas tanam ketika debit air berlebih dan merencanakan jadwal pembagian air rotasi menggunakan faktor K. Dari studi ini didapatkan besarnya debit andalan maksimum sebesar 2695,57 lt/dt dan minimum 485,64 lt/dt, Luas intensitas tanam eksisting sebesar 274,94% dan rencana 275%, dari neraca air eksisting terjadi defisit air sebanyak 19 kali dan surplus air 17 kali sedangkan dari neraca air rencana terjadi 19 kali defisit dan 17 kali surplus air dari 36 kali periode tanam, pembagian air rotasi dengan faktor K(0,25-0,5) sebanyak 9 kali, faktor K (0,5â€“0,75) 7 kali, dan Faktor K > 0,75 20 kali.
Perencanaan Instalasi Pengolahan Air Limbah (IPAL) Cair Peternakan Sapi Pada Desa Petungsewu Kecamatan Dau Kabupaten Malang
Authors: Wardana Bagas Kusdiyatno , Haribowo Riyanto , Yuliani Emma
Published: August 2021

Di Malang raya khususnya Kabupaten Malang, belum terdapat satu pun Instalasi Pengolahan Air Limbah (IPAL) yang secara spesifik mengolah limbah cair peternakan. Maka dari itu penelitian ini bertujuan untuk mencari model IPAL yang paling efektif untuk mengolah limbah cair peternakan sapi. Berlokasi di Desa Petungsewu, sebuah peternakan dengan sapi berjumlah 14 ekor. Limbah cair yang dihasilkan mencapai 1,071 m3/hari. Kualitas air limbah menggunakan parameter yang mengacu ke Peraturan Menteri Lingkungan Hidup (Permen. LHK) Nomor 11 Tahun 2009 yakni BOD, COD, TSS, NH3-N, dan pH. Setelah uji laboratorium, masing-masing nilainya sebesar 64,27 mg/l; 201,4 mg/l; 100,1 mg/l; 66,02 mg/l; dan 8,35. Berdasarkan data kuantitas dan kualitas air limbah di atas, dilakukan pendekatan metode IPAL menggunakan 3 alternatif yakni filtrasi, biofilter anaerob, dan metode kombinasi. Masing-masing alternatif mencapai efisiensi pengurangan efluen hingga 92,26%. Rencana Anggaran Biaya (RAB) untuk operasional dan bangunan IPAL adalah Rp13.702.933.
Analisa Keruntuhan Bendungan Malahayu Kabupaten Brebes Dengan Aplikasi HEC-RAS dan Perhitungan Kerugian Dengan Aplikasi InaSAFE
Authors: Muammar Adhitya Zein , Juwono Pitojo Tri , Asmaranto Runi
Published: August 2021

In the simulation using HEC-RAS 5.0.7 the part to be simulated is the condition of the Malahayu Dam which collapsed due to 7 conditions causing inundation in the downstream area of the Malahayu Dam. Obtained from 7 conditions of dam collapse, the overtopping collapse scenario is the most extreme collapse scenario with an inundation area of 143.54 km2 with a maximum flood inundation height of 19.943 m. The purpose of this dam collapse simulation is to get the most extreme inundation so that in the next process of the inundation, the calculation of economic losses will be carried out with the help of the InaSAFE application. Losses resulting from the Malahayu Dam collapse scenario cover 53 villages from 6 sub-districts so that the evacuation victims reached 22400 people. With this amount, it can be determined that the Malahayu Dam is a dam with a hazard level 4, which is very high. The estimated losses incurred as a result of this collapse reached Rp. 515,521,114,788. The purpose of this study is to determine the level of danger of a dam, to know the characteristics of the flood, and to know the losses caused by flooding due to dam collapse.
Analisa Kualitas Air Sungai Tukad Badung, Denpasar, Bali Menggunakan Program QUAL2Kw
Authors: Nur A. A Richarta Vichotama , Haribowo Riyanto , Prayogo Tri Budi
Published: August 2021

Sungai Tukad Badung secara fisik terbilang baik, namun memiliki kualitas air yang buruk. Penelitian ini bertujuan untuk mengetahui kondisi eksisting kualitas air Tukad Badung dan mengetahui kondisi daya tampung pencemaran berdasarkan analisa program QUAL2Kw. Dari hasil analisa, kondisi kualitas air pada daerah studi menunjukkan dua dari delapan parameter (Fosfat dan BOD) tidak memenuhi baku mutu kelas II. Sedangkan Daya Tampung Pencemaran sungai Tukad Badung pada TSS yakni 17,77 ton/hari, pada BOD 27,49 ton/hari, pada COD 93,63 ton/hari, dan pada Fosfat 7,65 ton/hari. Pada prediksi kualitas air Tukad Badung tahun 2024, terjadi penurunan kualitas air pada sungai Tukad Badung, hal ini dapat diprediksi dari trend penurunan kualitas air yang dihitung grafik penurunanya secara polinomial. Beberapa parameter diprediksi tidak memenuhi baku mutu kelas II yakni pada parameter BOD danÂ  Fosfat, sama seperti pada tahun-tahun sebelumnya. BOD memiliki penurunan sebesar -8,93% (konsentrasi BOD naik 8,93%) dan Fosfat memiliki penurunan sebesar -16,67% (konsentrasi fosfat naik 16,67%).
Perbandingan Metode FJ. Mock dan NRECA untuk Transformasi Hujan Menjadi Debit pada DAS Metro Kabupaten Malang, Jawa Timur
Authors: Widyaningsih Karunia waasiu , Harisuseno Donny , Soetopo Widandi
Published: August 2021

A process of converting rain data to runoff or discharge flow is called the rain transformation process. The transformation of rain into discharge is affected by the physical characteristics of the watershed and its land used. Discharge data in a watershed functions is as a measure of the amount of discharge available in a river which is useful in improving the management of water resources. This study purpose is to determine the results of the calculation of rain to discharge which located in the Metro DAS, Malang Regency. The methods analyzed by researchers is the FJ. Mock and NRECA methods. The results of the calculation from these methods are then compared with the rain data, because the AWLR discharge in the Sub Metro Watershed is considered not suitable to be the discharge of observations in this study. Based on the analysis results, the most suitable method for calculating the rainfall discharge in the Sub Metro Watershed is NRECA method with a determination coefficient (R2) = 0.792, and a correlation coefficient (r) = 0.887. Â
Analisa Keruntuhan Bendungan Batujai dan Pengga dengan Aplikasi HEC-RAS 5.0.7
Authors: Maulida Diah Fitri , Juwono Pitojo Tri , Asmaranto Runi
Published: August 2021

ABSTRACT: Batujai and Pengga Dam are cascade dams with homogeneous types, are authorized in 1982 and 1994. These dams are located at the same mainstream that ends at Alas Strait. Batujai and Pengga Dam break may occur due to overtopping and piping. According to HEC-RAS 5.0.7 simulation suggested that the collapsed of each or both dams has the biggest impact when conditioned with design flood of QPMF are due to overtopping, when the peak of discharge are at 2036.151 m3/second and 3204.089 m3/second, which caused 34.127 km2 and 107.025 km2 area to be flooded, with maximum inundation of 19.656 meters and 19.837 meters. According to InaSAFE, if the collapse of these dams were merged, reported that there are 34 villages and 29,100 people are exposed to the risk, classified with high disaster risk. The cost that has to be paid by the damâ€™s owner due to the collapse is estimated to be Â Rp 201,584,808.36/Ha or Rp. 2,845,409,886,907 in total.
Analisa Stabilitas Tubuh Bendungan Utama Pada Bendungan Semantok, Nganjuk, Jawa Timur
Authors: Pratama Rizki Ramadhani , Suprijanto Heri , Asmaranto Runi
Published: August 2021

By the changes of embankment material and foundation treatment on Semantok Dam, it is necessary to analyze the dam stability. This study aimed to know about the material specification, the geologic conditions & the foundation treatment, and the dam stability. The specification result shows that core material and fine filter material meet the criteria. The geologic conditions consist of Sand, Sandstone, and Claystone. The alternative for foundation treatment proposed using Secant Pile Cut-Off Wall and Cut-Off Trench. The rock bearing capacity and the core zone settlement is safe. The foundation's elastic deformation is estimated at 3,56 cm ~ 4,36 cm. The filtration flow stability using SEEP/W shows seepage discharge, piping, and boiling potential are safe. The slope stability by Bishop method using SLOPE/W shows static condition; OBE 100; and OBE 200 are safe, but MDE 10000 is unsafe. Permanent deformation analysis for MDE 10000 by Makdisi Seed method and Swaisgood shows the deformation is safe.Dengan adanya perubahan material timbunan dan perbaikan pondasi pada Bendungan Semantok, perlu dilakukan analisa stabilitas bendungan tersebut. Studi ini bertujuan untuk mengetahui spesifikasi material, kondisi geologi dan perbaikan pondasi, serta stabilitas bendungan. Hasil spesifikasi menunjukkan bahwa material inti dan filter halus memenuhi kriteria. Secara geologi pondasi Bendungan Semantok terdiri dari Pasir, Batu pasir, dan Batu lempung. Alternatif perbaikan pondasi diusulkan menggunakan Secant Pile Cut-off Wal dan Cut-off Trench. Daya dukung batuan pondasi dan penurunan zona inti bendungan aman. Deformasi elastis pondasi sebesar 3,56 cm ~ 4,36 cm. Stabilitas terhadap aliran filtrasi dengan SEEP/W menunjukkan debit rembesan, gejala buluh, dan gejala sembulan aman. Stabilitas lereng metode Bishop dengan SLOPE/W menunjukkan kondisi statis, OBE 100, dan OBE 200 aman, tapi untuk MDE 10000 tidak aman. Deformasi permanen untuk MDE 10000 dengan Metode Makdisi dan Swaisgood aman.
Studi Efisiensi Penyaringan Air Limbah Domestik Menggunakan Plat Beton Porous 4 Lapis Dengan Sistem Aliran Horizontal
Authors: Wibowo Aditya , Haribowo Riyanto , Cahya Evi Nur
Published: August 2021

Keterbatasan lahan menjadi permasalahan dalam sebuah perkotaan untuk membangun IPAL. Oleh karena itu, MCK Terpadu Tlogomas tercipta untuk mengatasi permasalahan tersebut. Dengan memanfaatkan beton porous berbahan dasar recycle agregat berukuran 0,5-2 cm sebagai media filtrasi, penelitian ini bertujuan untuk mencari efisiensi beton dalam memperbaiki kualitas mutu air limbah domestik ditinjau dari pH, amoniak, minyak dan lemak serta total coliform. Model reaktor memiliki dimensi 100Ã—41Ã—40 cm3 dan sekat 4 lapis beton setebal 5 cm dengan debit 2 lt/menit. Model reaktor ini dijalankan secara menerus dari jam 07.00-17.00 selama 10 hari. Sedangkan sampel diambil pada hari ke-1 dan ke-10. Efisiensi parameter Amonia sebesar 20,54% dengan keadaan amonia tidak memenuhi baku mutu air limbah. Kemudian untuk parameter minyak & lemak tidak efisien namun kadar minyak & lemak memenuhi baku mutu air limbah. Dan untuk parameter total coliform terefisiensi sebesar 30,77 dan memenuhi kadar baku mutu air limbah
Estimasi Tinggi Curah Hujan dari Data Klimatologi Menggunakan Model Artificial Neural Network (ANN) di Kabupaten Badung Bali Selatan
Authors: Juma'a Muhammad Walidi , Limantara Lily Montarcih , Wahyuni Sri
Published: August 2021

Abstract: The objective of this research was to establish the results of calibration relationship between rainfall and climatology, mathematical equations and the results of the validation Artificial Neural Network (ANN) method from 30 years of climatological data and historical rainfall. The population was taken from the Meteorology, Climatology and Geophysics Agency at Ngurah Rai Station, Badung Regency, Bali. Climatic data and rainfall data were analyzed the quality of the data, namely the consistency test, stationary test, trend absence test and persistence test. The output of the analysis calculation of rainfall using the (ANN) method of observational data based on the calibration found that in the distribution of data for 25 years epoch 2000 with an indicator value of NSE = 0.83 (Good) and R = 0.91 (Very strong) showed the best results, while for verification on 1 year epoch 2000 data with an indicator value of Â NSE = 0.48 (fulfilled) and R = 0.90 (very strong). The comparison of rainfall data with observational data is almost close if the Nash-Sutchliffe Efficiency (NSE) and Correlation Coefficient (R) values meet the existing categories.Â Abstrak : Tujuan penelitian ini untuk mengetahui hasil kalibrasi hubungan curah hujan dengan klimatologi, persamaan matematis dan hasil validasi metode Artificial Neural Network (ANN) dari 30 tahun data klimatologi dan curah hujan historis. Populasi diambil dari Badan Meteorologi Klimatologi dan Geofisika di Stasiun Ngurah Rai, Kabupaten Badung, Bali. Data iklim dan data curah hujan dilakukan analisis kualitas data, yaitu dengan Uji Konsistensi, Uji Stasioner, Uji Ketidakadaan trend dan Uji Persistensi. Hasil analisis perhitungan curah hujan dengan metode (ANN) terhadap data pengamatan berdasarkan kalibrasi didapatkan bahwa di pembagian data 25 tahun epoch 2000 dengan nilai indikator NSE = 0,83 (Baik) dan R = 0,91 (Sangat kuat) menunjukan hasil terbaik, sedangkan untuk verifikasi pada data 1 tahun epoch 2000 dengan nilai indikator NSE = 0,48 (Memenuhi) dan R = 0,90 (Sangat kuat). Perbandingan data curah hujan dengan data pengamatan hampir mendekati jika nilai Efisiensi Nash-Sutchliffe (ENS) dan Koefisien Korelasi (R) memenuhi kategori yang ada.
Studi Perencanaan Embung Lapangan Jegreg Kecamatan Lengkong Kabupaten Nganjuk Provinsi Jawa Timur
Authors: Al Huda Reja Palevi , Asmaranto Runi , Dermawan Very
Published: August 2021

The problem in dry season is about water availability, while during wet season there are often several puddles in an area in Jegreg Village in Nganjuk Regency. This is due to the increasing need of the population which is not in line with the development of water supply facilities and infrastructure. In this study, the authors make an analysis related to this problem, by planning a reservoir that can be used to accommodate water during the rainy season so that can be used to reduce floods.Based on the analysis, the dead storage volume (Sediment) are 9,49 m3,Â  and the effective storage volume are 68,96 m3and then the total storage volume are Â 78,45 m3 . The height of ponds is 3 meters , with the spillway type is side channel spillway with 0,5 meter of Â height. In elevation +40,50 the width of spillway are 17,15 meters. In stability analysis, the analysis used in the slope stability of the reservoir is the Bishop method withÂ  Geostudio2012 application and from the results of the analysis, the safety number meets the requirements. For the analysis of spillway safety against shear and rolling forces, in normal, flood condition, and earthquakes condition, the safety figures meet the requirement.
Analisa Pendugaan Laju Erosi Dengan Menggunakan Model Agricultural Non Point Source Pollution (AGNPS) di Sub Das Lesti Kabupaten Malang
Authors: Kasyful Haq Muhammad Fariz , Sholichin Moh , Asmaranto Runi
Published: August 2021

Changes in landuse and the topographic are undulating and hilly with a slope of 8-45%, as well as the intensity of precipitation impacts on increased erosion rates in sub-watershed Lesti area. Continuous erosion of land causes shallows rivers in Sub-watershed Lesti. An analysis and mapping of the greater existential rates on erosion and sedimentation along with the erosion of sub-watershed Lesti as well as land conservation efforts to reduce the effects of such erosion.Calculations using a model Agricultural Non-Point Source Pollution (AGNPS) obtained an average watershed erosion rate of 163,119 tons / ha / year. The results analysis of the danger erosion levels and area based on erosion danger index by hammer (1981) is obtained with a low level index (<1) 13,770 km2, a moderate level (index 1-4) 13,521 km2, a high level (index 4-10) 14,623 km2, and an exorbitant level (index >10) 16,342 km2. Based on sediment delivery ratio (SDR), results of sediment are 144,820.54 tons / year or 120,683.96 m3 / year. The conservation of land to reduce the rate of erosion are carried out in several ways, either by using vegetative andÂ  mechanical methods.
Studi Penentuan Prioritas Rehabilitasi Saluran Berdasarkan Efesiensi Saluran pada Saluran Primer Air Manna I Kabupaten Lahat
Authors: Ranteta'dung Imanuel Three , Ismoyo M. Janu , Prayogo Tri Budi
Published: August 2021

Daerah Irigasi Air Manna I yang terletak di Kabupaten Lahat, mampu mengairi 331ha lahan persawahan. Kerusakan di beberapa titik pada saluran Primer Air Manna 1 merupakan sebuah permasalahann yang dapat menurunkan0nilai efisiensi0dan0kinerja0saluran. Untuk itu diperlukan adanya perhitunagn0efisiensi saluran0dan identifikasi kerusakan saluran agar dapat menentukan prioritas rehabilitasi saluran. Penelitian ini bertujuan untuk mengetahui nilai efisiensi saluran, kinerja saluran, prioritas rehabilitasi saluran, dan biaya rehabilitasi saluran dengan menyajikan dalam peta kondisi saluran primer Air Manna I menggunakan aplikasi Google Earth. Metode yang digunakan adalah menghitung nilai efisiensi dari setiap ruas saluran, berdasarkan perhitunganÂ  kecepatan aliran, luas penumpang dan debit saluran untuk menentukan prioritas rehabilitasi saluran.Â  Hasil dari penelitian ini adalah: Prioritas rehabilitasi saluran peringkat 1 adalah ruas III (BAM.3-BAM.4a) dengan nilai efisiensi sebesar 59% dan kinerja saluran 35% serta membutuhkan biaya sebesar Rp.421.520.000,00. Prioritas rehabilitasi saluran peringkat 2 adalah ruas I (BAM.1-BAM.2) dengan nilai efisiensi sebesar 78% dan kinerja saluran 55% serta membutuhkan biaya sebesar Rp.141.930.000,00. Prioritas rehabilitasi saluran peringkat 3 adalah ruas II (BAM.2-BAM.3) dengan nilai efisiensi sebesar 81% dan kinerja saluran 60% serta membutuhkan biaya sebesar Rp.128.270.000,00.
Studi Perencanaan Pola Operasi Waduk Kuningan Untuk Memenuhi Kebutuhan Air Baku, Irigasi, dan PLTA di Kabupaten Kuningan Jawa Barat
Authors: Rachmawati Ratu Anita , Soetopo Widandi , Juwono Pitojo Tri
Published: August 2021

Perkembangan Kabupaten Kuningan dari tahun ke tahun semakin pesat sehingga menyebababkan turut pesatnya kebutuhan air penduduknya. Pembangunan Waduk Kunigan diharapkan bisa mencukupi kebutuhan air penduduk Kabupaten Kuningan. Pada penelitian ini melihat besarnya kebutuhan airÂ  maka perlu adanya optimasi guna memenuhi kebutuhan air yang diperlukan dan metode optimasi yang dipilih adalah Algoritma Genetik. Mode ini dijalankan dengan spreadsheet Excel dari Microsoft Office versi 2007. MenurutÂ hasil analisis, Pusat tahapan optimasi dengan Algoritma genetik Â pada struktur daripada kromosom.Â  Kromosom dalam hal ini adalah aturan lepasan waduk yang mewakili alternatif solusi, jadi kromosom ini bisa dikatakan interfal lepasan waduk yang bermacam macam variasinya & mempunyai nilai kinerja Menurut fungsi tujuan. Setelah dilakukan optimasi, rata-rata kebutuhan air meningkat 63,83%, dan kebutuhan air minimal meningkat 44,57%. Keadaan tampungan waduk minimal 2,55 juta meter kubik, dan kapasitas tampungan air rata-rata 17,01 juta meter kubik. Rata-rata energi yang dihasilkan PLTA meningkat 14,72%, dan energi minimum yang dihasilkan PLTA meningkat 72,53%. Sehingga dapat memaksimalkan kinerja reservoir tanpa mengalami kerusakan. Hal ini diharapkan dapat memberikan acuan untuk pedoman lepasan teroptimal pada pengoperasiannya waduk Kuningan agar keperluan irigasi, air baku, dan PLTA terpenuhiÂ The development of Kuningan Regency from year to year is increasing rapidly, causing the rapid need for water for its population. It is hoped that the Kunigan Reservoir construction can meet the water needs of the residents of Kuningan Regency. In this study, seeing the amount of water demand, it is necessary to optimize it to meet the required water needs and the chosen optimization method is the Genetic Algorithm. This mode is run with Excel spreadsheets from Microsoft Office 2007 version. Based of the analysis results, the optimization phase centers with genetic algorithms on the structure rather than chromosomes. The chromosome in this case is the reservoir discharge rule that represents an alternative solution, so this chromosome can be said to be the interface discharge of the reservoir which has various variations and has a performance value based on the objective function. After optimization, the average water demand increased by 63.83%, and the minimum water requirement increased by 44.57%. The condition of the reservoir is at least 2.55 m3, and the average storage capacity is 17.01 m3. The average energy produced by PLTA increased by 14.72%, and the minimum energy produced by PLTA increased by 72.53%. So that it can maximize reservoir performance without experiencing damage. This is expected to provide an overview of the optimal release guidelines for the operation of the Kuningan reservoir to meet the needs for irrigation, raw water and hydropower.
Studi Simulasi Pola Operasi Bukaan Pintu Bendung Gerak Mrican (Waru Turi) Kecamatan Gampangrejo Kabupaten Kediri Jawa Timur
Authors: Ramadian Favian Giffary , Sayekti Rini Wahyu , Sisinggih Dian
Published: August 2021

The Mrican Weir (Waru Turi) is one of the largest motion weirs that dam the Brantas River. The weir irrigates the Waru irrigation area of 12,710 hectares and the Turi irrigation area of 16,444 hectares. The main function of the weir is to needs of irrigation water (flow control) and flood control structures. From a total of nine spillway gates, only eight gates are operating optimally. With the need for irrigation water that must be fulfilled, a new operating pattern is needed to continue to support this irrigation. The door opening operation pattern refers to the Normal Water Level at an elevation of +57.3 meters as the ideal reference. The water level receded at an elevation of +57.2 meters, and the Flood Water Level at an elevation of +58.28 meters. The simulation method for door opening (intake and spillway door) is based on irrigation requirements. With the gate opening simulation method, the maximum discharge of the spillway door (+57.3 m) is 63.67 m3/s, with an opening of 2.73 meters per door (a total of eight functioning gates). While at the Waru intake the discharge is 6.211 m3/s and Turi with a discharge of 7.936 m3/s, the maximum gate opening is 0.3 meters per door. With the new operating pattern, the discharge that flows at each intake gate still meets the needs of irrigation discharge.
Studi Eksperimen Kehilangan Energi Pada Sistem Pelimpah Dengan Kemiringan 1 : 1 Akibat Penurunan Dasar Kolam Olak
Authors: Noverdo Rolanda , Dermawan Very , Sisinggih Dian
Published: August 2021

The structural integrity of a structure in a construction is very important. In a weir, an energy dissipator is an important part in the spillway system which is useful for reducing the energy that occurs due to hydraulic jump affected by high flow velocity. High flow velocity produces high energy with a large destructive force causes scouring at the bottom of the channel and results in disruption of the structural integrity of the weir. To keep the hydraulic jump close to the spillway and stilling basin, it is necessary to lower the base of stilling basin. This study aims to determine the hydraulic condition of lowering the base of stilling basin and to determine the condition of energy dissipation of lowering the base of stilling basin. This study is useful as an alternative for designing and planning energy dissipator in the spillway system. To determine the efficiency of energy dissipation, experiment was carried out by conducting several alternatives, Original Series, Series I, Series II, Series III, Series IV, Series V and with several discharge flow experiments. Series V is the most efficient of energy dissipation among all experimental alternatives.Â Keutuhan struktur bangunan pada suatu konstruksi adalah hal yang sangat penting. Pada bendung, peredam energi merupakan bangunan penting pada sistem pelimpah yang berguna untuk meredam energi yang terjadi akibat loncatan air yang dipengaruhi oleh kecepatan aliran yang tinggi. Kecepatan aliran yang tinggi menghasilkan energi yang tinggi dengan daya rusak yang besar yang menyebabkan penggerusan pada dasar kolam olak dan mengakibatkan terganggunya keutuhan struktur bangunan bendung. Untuk menjaga agarÂ  loncatan air tetap dekat dengan sistem pelimpah dan kolam olak, maka perlu dilakukan penurunan dasar kolam olak. Studi ini bertujuan untuk mengetahui kondisi aliran sebelum dan sesudah penurunan dasar kolam olak dan untuk mengetahui kondisi peredaman energi sebelum dan sesudah penurunan dasar kolam olak. Studi ini bermanfaat sebagai alternatif perencanaan dan pemilihan peredam energi pada sistem pelimpah bendung. Dalam upaya mendapatkan nilai efisiensi peredaman energi terbaik, penelitian dilakukan dengan melakukan beberapa alternatif penelitian, mulai dari Seri Original, Seri I, Seri II, Seri III, Seri IV dan Seri V dan dengan beberapa percobaan aliran debit. Seri V adalah alternatif penelitian terbaik sebab memberikan nilai efisiensi peredaman energi terbaik di antara semua alternatif penelitian.
Studi Penentuan Status Mutu Air dengan Menggunakan Metode Indeks Pencemaran dan Metode Water Quality Index (WQI) Di Sungai Donan Cilacap, Jawa Tengah
Authors: Mukti Galih Teja , Prayogo Tri Budi , Haribowo Riyanto
Published: August 2021

Sungai Donan merupakan daerah yang memiliki beberapa kawasan industri dan kawasan permukiman. Dampak dari adanya kawasan padat pembangunan dan industri diyakini dapat mempengaruhi tingkat mutu kualitas air. Tujuan penelitian ini yaitu untuk mengamati dan menganalisa kondisi sungai Donan sehingga dapat memperlihatkan sumber pencemaran dan parameter melebihi batas baku mutu yang terjadi. Penelitian ini menggunakan metode Indeks Pencemaran (IP) dan Water Quality Index (WQI). Hasil penelitian menunjukkan bahwa status mutu air Sungai Donan dari analisa menggunakan metode Indeks Pencemaran menunjukkan 100% kondisi tercemar sedang. Sedangkan menurut metode Water Quality Index (WQI) menunjukkan 47,5% tercemar berat dan 52,5% tercemar sedang. Penentuan status mutu air dari hasil sampel air terhadap Peraturan Pemerintah No. 82 tahun 2001 yang di lakukan pada bulan November 2018 menyatakan bahwa terdapat beberapa parameter yang melebihi batas baku mutu kelas II yaitu Jumlah partikel terlarut (TDS), COD, BOD, flourida, minyak dan lemak, salinitas, sulfida, dan klor bebas. Sehingga dapat disimpulkan bahwa air di Sungai Donan tersebut dimungkinan masih digolongkan air sungai kelas IV.
Aplikasi Geolistrik Resistivitas dengan Konfigurasi Schlumberger Untuk Identifikasi Air Laut di Kecamatan Jayapura Utara Kota Jayapura
Authors: Simanjuntak Yogi Ricardo P , Prayogo Tri Budi , Sholichin Mohammad
Published: August 2021

Dalam beberapa tahun belakangan telah terjadi eksodus penambahan penduduk yang sangat besar di belahan bumi, yang menyebabkan pengambilan air dalam tanah terus menanjak sangat pesat. Faktor inilah yang membuat dampak sangat jelek terhadap kuantitas dan kualitas air bawah tanah, yaitu turunnya permukaan air bawah tanah, serta fluktuasi yang sangat besar bahkan penurunan kualitas air bawah tanah, sampai terjadinya akibat dari intrusi air laut pada bawah tanah di wilayah pesisir. Dalam rangka penilitian ini, kami memakai metode geolistrik guna mengetahui pengaruh dari penurunan pada muka air bawah tanah terhadap intrusi air laut di salah satu kecamatan di Kota Jayapura yaitu Kecamatan Jayapura Utara. Jayapura Utara Metode dari Â geolistrik kami gunakan untuk melihat pengaruh pada penurunan muka air bawah tanah oleh dampak dari intrusi air laut di Kecamatan tersebut.
Aplikasi Software Watercad V8i Untuk Evaluasi dan Pengembangan Sistem Jaringan Distribusi Air Bersih di Desa Rejosari Kecamatan Bantur Kabupaten Malang
Authors: Abriani Aaron Petrova , Ismoyo Janu , Haribowo Riyanto
Published: August 2021

Rejosari Village is part of the Malang Regency area, the need for clean water in this area has not been fulfilled properly. It is necessary to study and evaluate the provision of clean water for the Rejosari Village community in terms of quantity, quality and continuity. Efforts that can be made to meet the need for clean water in this area are by developing the existing clean air network and by maximizing the potential of the Tunjungsari spring in Bantur Village. The results of the evaluation of the need for clean water in existing conditions (2019) with a discharge of 5 liters / second are able to serve 100% of the number of customers in the service area of HIPPAM Sumber Hidup, which can serve 320 customers. For the development stage of the clean water distribution network in Rejosari Village, it is planned to increase the service area to Tunjungsari Hamlet and also increase the percentage of services for the hamlets that have been served. Network development and replacement of the diameter of the transmission pipe with a diameter larger than the original 3 inches to 4 inches in diameter need to be done to meet all the planning criteria in accordance with the latest SNI. After analyzing and calculating with the WatercadV8i program, it was found that the distribution network system in the study area was feasible and could function properly and could fulfill all customer needs.Â Desa Rejosari merupakan bagian dari wilayah Kabupaten Malang, kebutuhan akan air bersih di daerah ini masih belum dapat terpenuhi secara baik. Diperlukan sebuah kajian dan evaluasi tentang penyediaan air bersih untuk masyarakat Desa Rejosari baik secara kuantitas, kualitas dan kontinuitas. Upaya yang bisa dilakukan untuk memenuhi kebutuhan air bersih di wilayah ini yaitu denganÂ  cara mengembangkan jaringan air bersih yang sudah ada serta dengan cara memaksimalkan potensi sumber mata air Tunjungsari yang berada di Desa Bantur. Hasil evaluasi kebutuhan air bersih pada kondisi existing (tahun 2019) dengan debit sebesar 5 liter/detik mampu melayani 100% dari jumlah pelanggan di daerah pelayanan HIPPAM Sumber Hidup yaitu dapat melayani 320 pelanggan. Untuk tahap pengembangan jaringan distribusi air bersih di Desa Rejosari direncanakan untuk menambah daerah pelayanan menuju Dusun Tunjungsari dan juga penambahan prosentase pelayanan untuk Dusun yang sudah terlayani. Pengembangan jaringan dan penggantian diameter pipa transmisi dengan diameter yang lebih besar dari awalnya 3 inchi di ganti dengan diameter 4 inchi perlu dilakukan untuk bisa memenuhi seluruh kriteria perencanaan yang sesuai dengan pedoman SNI. Setelah dilakukan analisa dan perhitungan dengan program Watercad V8i didapatkan bahwa sistem jaringan distribusi pada daerah studi layak dan dapat berfungsi dengan baik serta mampu memenuhi seluruh kebutuhan pelanggan.
Analisa Indeks Kinerja Daerah Irigasi Kedungputri, Kecamatan Paron, Kabupaten Ngawi dengan Menggunakan Software PDSDA-PAI versi 2.0
Authors: Nugroho Fajar Unggul , Prayogo Tri Budi , Wicaksono Prima Hadi
Published: August 2021

For determining irrigation system performance index we need calculation and some complex considerations, therefore to make determining irrigation system performance index easier we need helping tool which is PDSDA-PAI (Water Resources Data Processor â€“ Irrigation Asset Management) version 2.0 software. Â According to Ministerial of Public Works Regulation Number:12/PRT/M/2015 explained that to know performance condition of irrigation system we need 6 (six) aspects for evaluation, which is: physical infrastructure condition, farm productivity, supporting infrastructure, personnel organization, documentation and P3A institutional condition. According to research result of Kedungputri Irrigation Area performance index, Ngawi Regency with blank form we got index value 81.87%, meanwhile research result with PDSDA-PAI version 2.0 software 90.68%. According to irrigation performance index value with blank form as well as PDSDA-PAI version 2.0 software we obtain Kedungputri Irrigation Area condition is very good and only need some maintenance activities.Di dalam menentukan indeks kinerja sistem irigasi diperlukan perhitungan dan beberapa pertimbangan yang cukup kompleks, maka dari itu untuk mempermudah penentuan indeks kinerja sistem tersebut dibutuhkan alat bantu berupa program komputer yaitu PDSDA-PAI versi 2.0 (Pengolah Data Sumber Daya Air â€“ Pengelolaan Aset Irigasi). Menurut Peraturan Menteri Pekerjaan Umum Nomor :12/PRT/M/2015 dijelaskan bahwa untuk mengetahui kondisi kinerja sistem irigasi terdapat 6 (enam) aspek yang perlu dievaluasi, meliputi: kondisi prasarana fisik, produktifitas tanam, sarana penunjang, organisasi personalia, dokumentasi dan kondisi kelembagaan P3A.Berdasarkan hasil dari penelitian indeks kinerja Daerah Irigasi Kedungputri, Kabupaten Ngawi dengan menggunakan blangko diperoleh besaran nilai indeks sebesar 81,87%,Â  sedangkan hasil penilaian indeks kinerja irigasi dengan menggunakan software PDSDA-PAI versi 2.0 sebesar 90,68%. Berdasarkan hasil indeks kinerja jaringan irigasi baik menggunakan blangko maupun menggunakan software PDSDA-PAI versi 2.0 didapatkan kondisi Daerah Irigasi Kedungputri dalam keadaan sangat baik dan hanya memerlukan kegiatan pemeliharaan sajaÂ
Studi Penjadwalan Pelaksanaan Proyek Rehabilitasi Bangunan Pelimpah (Spillway) Bendungan Pacal Kec. Temayang, Kab. Bojonegoro, Provinsi Jawa Timur Menggunakan Microsoft Project Manager 2016
Authors: Prayogi Anasrul Septian , Marsudi Suwanto , Suprijanto Heri
Published: August 2021

A project called success when viewed from an economic perspective, the project is carried out effectively and efficiently. In other word the project is avoided from all kinds of expenses that are not excluded, so that the planned benefits can be achieved. To achieve the results of a construction project that is efficient in terms of cost, time, and labor, the writer applies the Microsoft Project Manager 2013 program to help plan, manage, and schedule which strongly supports the project administration process. This study discusses scheduling and financing use 3 alternatives which include analysis of machine productivity, duration of the project, the resources requirement, analysis of labor unit prices, draft budgetary costs, and curve plans s taking into account the implementation of the work order and material requirements of scheduling Microsoft Project Manager 2016 that produces a network in the form of a giant chart. The purpose of this final assignment is to find out which alternative is the most efficient in terms of time and cost to accelerate the duration of the project. The three alternatives provide different analysis and results which are certainly different in terms of time and cost with alternative 1 (16 months, total project costs of Rp. 116.195.725.172,89), alternative 2 (14 months, total project costs of Rp. 114.977.966.202,28), and alternative 3 additions of heavy equipment (10 months, total project costs of Rp. 120.742.705.287,18). In terms of time and cost and the weaknesses of the three alternatives, it can be concluded that the addition of heavy equipment is an alternative that is considered efficient for implementation.
Studi Optimasi Air Irigasi Bendungan Semantok Untuk Memaksimalkan Luas Layanan Irigasi Di Kabupaten Nganjuk
Authors: Larasati Putri Dita , Sayekti Rini Wahyu , Soetopo Widandi
Published: August 2021

Nganjuk district is quite dry with low rainfall distribution however people still rely on rainfed irrigation including 6 irrigation areas which are Weir Rejoso, Margomulyo, Ngomben, Jati, Jatirejo, and Janeng. This problem makes the total cropping intensity for three times planting period of every irrigation area didnâ€™t reach 300%. To anticipate this problem, Semantok Dam was built to provide the discharge of irrigation water needs in the amount of 3.23 m3/s for all irrigation areas available in each weir. This study performed optimization with the linear program using solver in Microsoft Excel. The objective function of this model was to optimize the supply provided by the dam and to optimize the potential land area available in the weir irrigation area by the discharge supply and available land area as constraints. In this optimization model, three cropping patterns were planned with a variety of initial planting times for each weir. Based on the optimization result, the selected cropping pattern is the 2nd cropping pattern alternative that starts planting on the 3rd period of December with a total cropping intensity is 300%.Â Kabupaten nganjuk merupakan daerah kering dengan sistem irigasi teknis namun masih mengandalkan irigasi tadah hujan dimana meliputi 6 daerah irigasi bendung yaitu Bendung Rejoso, Margomulyo, Ngomben, Jati, Jatirejo dan Janeng. Sehingga intensitas tanam total untuk tiga kali masa tanam pada setiap daerah irigasi bendung tidak mencapai 300%. Demi mengantisipasi hal ini maka dibangun Bendungan Semantok guna menyuplai debit kebutuhan irigasi sebesar 3,23 m3/dt untuk keenam daerah irigasi bendung tersebut. Dalam studi ini dilakukan optimasi dengan program linier menggunakan fasilitas solver pada Microsoft Excel. Fungsi tujuan pada model optimasi ini adalah mengoptimalkan debit suplai pada bendungan dan luas potensial yang ada pada 6 daerah irigasi bendung dengan fungsi kendala yaitu debit suplai bendungan dan luas lahan tersedia. Pada model optimasi ini direncanakan tiga alternatif pola tata tanam dengan perbedaan awal tanam untuk masing-masing bendung. Berdasarkan hasil optimasi maka didapat pola tata tanam terpilih adalah alternatif pola tata tanam ke-II dengan awal tanam Bulan Desember periode III dengan intensitas tanam total 300%.
Factors affecting talent management in Vietnam
Authors:   Faculty of Business and Administration, University of Economics and Business - Vietnam National University, Hanoi, Vietnam, et al. Ho
Published: August 2021

The purpose of this research is to evaluate factors affecting talent management in Vietnam. Through building the theoretical basis and literature review, the author chooses 4 typical factors: Talent strategy; Motivation to work; Work environment; Corporate culture to assess the impact on talent management. The strength of that research is to use the SPSS model in conjunction with AMOS, and at the same time carry out surveys on the largest scales of Vietnam to accurately assess the model compared to other research. The study used survey data of 570 samples, collected from 27 enterprises with the largest scale in Vietnam. Research results show that there is a difference between the influences of selected factors on talent management in Vietnam. From the results of this study, a system of scales to evaluate talent for the business was re-tested, and at the same time showed the relationship between latent variables in the model as well as between latent variables and variables observe. Since then, the author gives recommendations to improve the efficiency of talent management in Vietnam. These recommendations include awareness of talent management, appropriate remuneration, strategies, recognition and support for talent at work, satisfaction, confidence in the leadership.
Seasonal rainfall prediction in Juba County, South Sudan using the feedforward neural networks
Authors: Lomeling David , Huria Salah Joseph
Published: August 2021

Historical rainfall data from 1997-2016 of Juba County, South Sudan were used in a Feed-Forward Neural Network (FFNN) model to make future predictions. Annual rainfall data were aggregated into three seasons MAMJ, JAS and OND and later trained for best forecasts for the period 2017-2034 using the Alyuda Forecaster XL software. Best training of the time series was attained, once the minimum error of the weight expressed as MSE or AE between the measured variable and predicted was achieved during gradient descent.  The results showed that for MAMJ and JAS months, the number forecasts were over 85% whereas this was between 60-80% for OND months. The Seasonal Kendal (SK) test on future rainfall forecasts as well as the Theil-Sen slope showed negative monotonic trends in the mean values till the end of 2034 of all three seasons with MAMJ, JAS at OND at 100, 150 and 80 mm respectively.  Rainfall forecast showed that the MAMJ months for the years 2019 to 2027 will be moderately wet except in April 2021 which will experience some severe wetness (due to intensive rainfall). Interdecadal severe drought with less than 60, 100 and 10 mm for MAMJ, JAS and OND respectively, is expected between 2028 to 2033 after almost two decades. The declining onset of MAMJ rains is expected to significantly affect the timing for land preparation and crop planting.
Genotypes by environment effect on flowering and seed set in cassava, Manihot esculenta Crantz in Uganda
Authors: Aquilino Lado , Pariyo A. , Baguma Y. , Edema R. , Gibson P. , Bisikwa J.
Published: August 2021

Cassava (Manihot esculenta Crantz) production has been constrained by biotic and abiotic factors, which could be solved by conventional breeding. However, cassava hybridization is difficult because many genotypes do not flower or set seeds and yet cassava sexual reproduction is essential for breeding programs. Consequently, this study was undertaken to identify agro ecologies in Uganda that best promote cassava flowering and seed set in order to facilitate breeding. Field evaluation of eight genotypes in randomized complete block design with three replications at three agro-ecologies of Uganda for two cropping seasons was conducted. Weather data were monitored and cassava flowering/seed set-related traits were collected at one-month interval commencing from 1.5 Months after planting. Results indicated that varieties previously categorized as high flowering and seed set performed differently than those identified as poor flowering and seed set, although with varying genotypic differences in each environment. Genotypes mean performances, additive main effect and multiplicative interaction and genotype main effect and genotype by environment interaction bi-plots model’ results indicated Rwebitaba in Western savannah grassland agro-ecology and Namulonge-NaCRRI in Lake Victoria Crescent agro-ecology as the most favorable environments for the performance of all the evaluated traits, and season one as the most favorable season. However, the most stable environment for all the evaluated traits was Abi-ZARDI. Conclusively, the high proportion of variation which occurred between genotypes and environments was explained by the genotypic variances. Dry months had poorer cassava flower initiation and development than wet months of the cropping season. Therefore, Abi-ZARDI in North-western savannah grassland agro-ecology and season one could be recommended for the establishment and timing of cassava breeding nursery.