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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik International Conference on Coastal and Delta Areas JITEK (Jurnal Ilmiah Teknosains) JFMR (Journal of Fisheries and Marine Research) Reviews in Civil Engineering Jurnal DISPROTEK Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS) Community Development Journal: Jurnal Pengabdian Masyarakat Teknika Jurnal Pengabdian Masyarakat Waradin Indonesian Journal of Society Development (IJSD) Khaira Ummah: Jurnal Pengabdian Kepada Masyarakat Jurnal Civil Engineering Study Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Jurnal Pengabdian KOLABORATIF
Decky Rochmanto
Universitas Islam Nahdlatul Ulama Jepara
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Transportation Veterinary Other

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ANALISIS KESESUAIAN LAHAN UNTUK BUDIDAYA PERIKANAN PADA LAHAN PESISIR KABUPATEN JEPARA Arif Mustofa; Decky Rochmanto
JFMR (Journal of Fisheries and Marine Research) Vol 5, No 1 (2021): JFMR VOL 5 NO.1
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.01.19

Abstract

Analisis daya dukung lahan terhadap budidaya perikanan sangat penting dilakukan agar usaha budidaya tidak menemukan hambatan. Analisis keseuaian lahan dilakukan dengan melakukan evaluasi karakteristik lahan disesuaikan dengan kriteria hasil penelitian yang telah dilakukan. Tujuan penelitian ini adalah menganalisis dan mengevaluasi kesesuaian lahan pesisir Kabupaten Jepara sebagai lahan budidaya perikanan. Metode penelitian berupa survei dan metode analisis data didasarkan pada kriteria kesesuaian lahan pesisir dimodifikasi dari beberapa sumber peneliti terdahulu. Kriteria tersebut berupa tekstur tanah, kelerengan pantai, tipe pantai, curah hujan, kondisi hidrologi, jalur hijau, pH tanah dan penutupan lahan. Pengukuran dan pengambilan sampel di titik pengamatan yang berumlah delapan yaitu Kecamatan Kedung, Tahunan, Jepara, Mlonggo, Bangsri, Kembang, Keling dan Donorojo. Analisa data menggunakan scoring dengan tiga tingkatan 100, 90 dan 80 serta hasil total penjumlah skor dengan kriteria daya dukung baik bernilai 91-100, daya dukung sedang bernilai 81-90 dan daya dukung rendah bernilai < 80. Hasil analisis menunjukkan bahwa wilayah pesisir Kabupaten Jepara yang memiliki karakteristik daya dukung lahan baik terhadap budidaya perikanan adalah wilayah pesisir Kecamatan Kedung, Mlonggo dan Keling. Kriteria daya dukung sedang adalah wilayah pesissir Kecamatan Tahunan, Jepara, Bangsri, Kembang dan Donorojo. Tidak ditemukan kriteria daya dukung lahan rendah di wilayah pesisir Kabupaten Jepara
PENGARUH LIMBAH GYPSUM PLTU TERHADAP KUAT TEKAN DAN DAYA SERAP AIR PADA BETON GEOPOLIMER Decky Rochmanto; Khotibul Umam; Mochammad Qomaruddin
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2019): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 10 2019
Publisher : Prosiding SNST Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (208.648 KB)

Abstract

Penelitian ini menggunakan limbah PLTU Tanjung Jati B Jepara berupa gypsum dan fly ash yang dijadikan binder atau pengganti semen untuk dibuat beton geopolimer. Komposisi material yang digunakan dalam penelitian ini yaitu agregat : (binder + aktivator) = 63 % : 37 %. Binder terdiri dari dua material yaitu fly ash dan gypsum, dengan 5 variasi kadar gypsum 0%, 2,5%, 5%, 7,5% & 10%. Komposisi aktivator dengan perbandingan 1 NaOH : 2 Na2SiO3. Hasil kuat tekan yang didapatkan pada beton geopolimer yang tertinggi pada umur 28 hari tanpa campuran gypsum, sedangkan semakin besar kadar gypsum yang ditambahkan akan mengakibatkan penurunan mutu beton yang dihasilkan. Pada Penyerapan air juga menunjukkan semakin besar kadar gypsum pada beton maka penyerapan air juga meningkat yang disebabkan oleh kalsium sulfat dapat mengikat air pada beton yang sudah mengeras.Kata kunci : Limbah PLTU, Geopolimer, Fly Ash, Gypsum.
Cost Of Study Reinforced Concrete Structures, Structural Steel And Steel Combination Structure - Concrete (Depo Archives Building Case Study District Jepara) Decky Rochmanto
International Conference on Coastal and Delta Areas Vol 3 (2017): The 3rd International Conference on Coastal and Delta Areas
Publisher : International Conference on Coastal and Delta Areas

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Abstract

Office buildings in its development always use a reinforced concrete structure. Very few and rarely encountered office buildings using steel structures, whereas steel structures are very easy and fast to use with very simple tool installation tools, so it saves procurement costs and time. For that reason it is necessary to review the material used in the determination of the cheap cost in a design of the building structure, in this study take case study of Depo Archive Building of Jepara Regency with level three (3) floor, the part of structure that is reviewed is column, platform. This study uses design design method and unit price analysis method based on Indonesian National Standard (SNI). The design results calculated with SAP 2000 if it is stated strong, then proceed into the calculation of costs. The results of these cost calculations are compared with six combinations of structures using different materials ie Type I (concrete columns, concrete blocks and concrete plates), Type II (concrete columns, concrete blocks and plates using bonded), Type III (concrete columns, steel and concrete plate), Type IV (concrete columns, steel beams and plate using bonded), Type V (steel columns, steel beams and concrete plates), Type VI (steel columns, steel beams and plate using bonded), where the cost the cheapest is on the Type IV structure at a cost of Rp. 851,922,778.91 and the most expensive cost on Type V structures at a cost of Rp. 1,724,793,719.48. Keywords: material, cost, structure concrete, structure steel, plate floor.
STUDI KOMPARASI PERKERASAN KAKU DAN PERKERASAN LENTUR JALAN KEMBANG – TUBANAN KABUPATEN JEPARA Decky Rochmanto; Ainis Safaah; Mochammad Qomaruddin; Nor Hidayati
Jurnal Ilmiah Teknosains Vol 5, No 2 (2019): JiTek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (538.481 KB) | DOI: 10.26877/jitek.v5i2.3565

Abstract

Penambahan Pembangunan Pembangkit Listrik Tenaga Uap (PLTU) Tanjung Jati B unit 5&6 membutuhkan akses – akses tambahan salah satunya adalah jalan alternatif. Maksud dari skripsi ini adalah membuat perencanaan jalan dengan mengkomparasikan perencanaan perkerasan kaku dan perkerasan lentur dengan menggunakan metode Bina Marga serta menghitung besarnya Rencana Anggaran Biaya yang diperlukan untuk keduanya. Dari hasil perhitungan perencanaan didapatkan bahwa untuk perkerasan kaku menggunakan beton bersambung tanpa tulangan dengan tebal plat sebesar 25 cm, ukuran tie bar D-16 jarak 60 cm dan panjang 70 cm, sedangkan ukuran dowel besi Ø 36  jarak 30 cm dan panjang 45 cm. Rencana Anggaran Biaya yang dibutuhkan sebesar Rp. 36.901.467.000,00, sedangkan perkerasan lentur menggunakan Laston Lapis Aus (AC-WC) dengan tebal 7,5 cm dan Rencana Anggaran Biaya yang dibutuhkan sebesar Rp. 24.271.501.800. Perbandingan untuk biaya keduanya adalah 100% : 65%.
PENERAPAN TEKNOLOGI WEBSITE SEKOLAH UNTUK PENINGKATAN PROMOSI PADA MTS NU MAFATIHUL ULUM SIDOREKSO KUDUS Heru Saputro; Nia Zuliyana; Ahmat Wakit; Decky Rochmanto
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 3 No. 1 (2022): volume 3 Nomor 1 Tahun 2022
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v3i1.3766

Abstract

Standar Nasional Pendidikan merupakan kriteria minimal tentang sistem pendidikan di seluruh wilayah hukum Negara Kesatuan Republik Indonesia. Ada 8 Standar Nasional Penelitian salah satunya adalah standar pengelolaan. Khususnya pengelolaan di bidang informasi. Bagaimana informasi dari sekolah dapat tersampaikan kepada penerimanya dengan cepat dan akurat. Semakin baik pengelolaan yang terdapat pada satuan pendidikan, semakin baik pula kualitas mutu layanan pendidikan nya. Akan tetapi kondisi yang ada pada MTs NU Mafatihul Ulum ini, penyebaran informasi promosi sekolah yang dilakukan masih bersifat konvensional, yaitu melalui surat, papan pengumuman, maupun dari mulut ke mulut lingkungan sekitar saja. Metode konvensional ini memang banyak sekali kekurangnnya, antara lain 1) informasi yang disampaikan terbatas; 2) jangkauan penyebaran informasi yang sempit; 3) kurangnya update informasi; 4) penggunaan waktu dan biaya yang kurang efektif dan efisien. Oleh karena itu dibutuhkan media penyebaran informasi promosi sekolah menggunakan website sehingga semua informasi dari sekolah dapat diakses secara online dan terbuka oleh semua masyarakat umum.
Evaluasi Geometrik Jalan Ditinjau Dari Aspek Alinyemen Horisontal Terhadap Pelebaran Tikungan Jalan Bangsri - Kelet Decky Rochmanto; Khotibul Umam; Fara Fitriatul Fauziah
Reviews in Civil Engineering Vol 3, No 2 (2019): Reviews in Civil Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/rice.v3i2.1456

Abstract

The Bangsri - Kelet highway is a provincial road that has road geometric conditions (horizontal alignments and vertical alignments) which can endanger the safety of road users. Then the Bangsri-Kelet highway evaluation and study is needed to get a horizontal alignment and vertical alignment in accordance with Bina Marga standards. Using the observation survey method, using road geometric data and primary and secondary data The results of the analysis show that the Bangsri-Kelet road is included in the Collector's function with class II B. There are 7 horizontal alignments included in the Bina Marga standard and included in the SCS bend type ( Spiral-Circle-Spiral). With PPV in the form of 105 pieces consisting of 52 concave arch PPV and 53 convex curved PPV.
Analisis Kepadatan Kendaraan Jalan Pecangaan - Kedung Kabupaten Jepara Ariyanto Ariyanto; Decky Rochmanto; Achmad Rafiul Umam; Khotibul Umam
Reviews in Civil Engineering Vol 5, No 2 (2021): Reviews In Civil Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/rice.v5i2.4318

Abstract

The vehicle density analysis survey is a survey conducted with the aim of knowing the size of the density and also the obstacle factors on the analyzed road. At the Bugel Kedung Jepara T-junction, the survey point is the middle point of the current conflict, or the meeting point of two heavy vehicle flows, from the flow of vehicles originating from the traffic light at the junction of Pecangaan Walisongo Jepara and the flow of vehicles originating from the Mantingan Jepara red light intersection. The survey results on Thursday and Sunday, on Thursday can represent the effective working day, the degree of saturation is 0.16 pcu / hour, 2 seconds delay for a total of 5796 vehicles, the side friction is 223.8, indicating that the level of side resistance (L) low. The results of the calculation of vehicle density using the Greenshields Method show that after analyzing the survey results at point IV, the densest point is at point V, which is at the red light junction of Walisongo, Pecangaan Jepara, which occurs during the peak hours of the afternoon at 16.00 - 17.00 WIB. Vehicle density = 36.31 pcu / hour and the level of road service (B) with a LOS analysis value of 0.31 including good. To minimize the occurrence of conflicts and accidents, at each I-V survey point it is necessary to add a caution sign or additional signs on each road segment
ANALISIS KERUSAKAN JALAN MENGGUNAKAN METODE BINA MARGA 1990 (Studi Kasus Jl. Jepara–Mlonggo, KM 3+000 s/d KM 5+000) Ariyanto Ariyanto; Decky Rochmanto; Maharani Nilamsari
Jurnal DISPROTEK Vol 12, No 1 (2021)
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/jdpt.v12i1.1765

Abstract

Ruas jalan Jepara-Mlonggo dikategorikan sebagai jalan kolektor dengan lalu lintas tinggi, dimana jalan ini sering dilalui oleh beberapa kendaraan besar seperti peti kemas, truk pengangkut metrial, truk pengangkut batu sungai, truk semen, dan lain-lain yang mengakibatkan penurunan kualitas pada jalan. Dengan permasalahan diatas maka perlu dilakukan analisis kondisi kerusakan jalan untuk memantau seberapa besar tingkat kerusakan jalan yang terjadi pada ruas jalan Jepara-Mlonggo KM 3 + 000 sampai dengan KM 5 + 000. Penelitian ini bertujuan untuk 1. Menentukan atau menentukan jenis dan tingkat kerusakan jalan dengan menggunakan metode Bina Marga 1990, 2. Mengetahui nilai persentase setiap jenis kerusakan jalan, 3. Mengetahui nilai urutan prioritas jalan sebagai acuan penanganan yang sesuai dengan Bina Metode Marga, 4 Mengetahui penyebab kerusakan jalan secara umum. Populasi penelitian pada ruas jalan Jepara-Mlonggo berjarak 2 Km dengan jumlah keseluruhan 20 ruas dengan jarak antar ruas 100 m. Pengumpulan data menggunakan survei visual dan survei LHR. Hasil penelitian menunjukkan bahwa jenis kerusakan yang terdapat pada ruas jalan Jepara-Mlonggo adalah Nilai Persentase masing-masing jenis kerusakan pada ruas jalan Jepara-Mlonggo yaitu retakan longitudinal (9,52%), celah (4,95%), bercak (0,09%). ), retak. kulit buaya (4,56%), lubang (2,77%), robek (3,03%), retakan tepi (0,95%), obesitas (0,18%), retakan blok (0,00%), mengembang (0,14%). Pada saat dilakukan penelitian, kondisi jalan pada ruas jalan Jepara-Mlonggo KM 3 + 000 sampai dengan KM 5 + 000 memiliki nilai kondisi 7,75. Kemudian rata-rata volume lalu lintas harian pada ruas jalan Jepara-Mlonggo adalah 10.917 kendaraan / jam dengan nilai SMP 5.878,6 SMP / jam. Hasil perhitungan urutan prioritas mendapatkan nilai 3,25, sehingga sesuai dengan nilai prioritas pada metode Bina Marga 1990, ruas jalan tersebut masuk dalam program perbaikan jalan.
Pemberdayaan Entrepreneurship Melalui Penerapan Branding Jamu Widjaya Decky Rochmanto; Shahnaz Surayya; Arum Dina Prajna Paramita; Khoirur Rozaq; Mayang Tiara; Nina Febriani; Rika Mawati; Achmad Eriel Pangestu; Siti Rois Yuliasuti; Ahmad Naufal Ilmi Fasya
Khaira Ummah Vol. 1 No. 01 (2022): Khaira Ummah Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1254.909 KB) | DOI: 10.34001/khairaummah.01012022-2

Abstract

During the pandemic, people need additional supplements to strengthen their immune system. Supplements that are good for the body are those made from natural ingredients by utilizing existing natural resources. One of these supplements is traditional herbal medicine whose ingredients are passed down from the ancestors of the Indonesian people. This service activity aims to market herbal products in order to increase public interest in increasing immunity through natural supplements in the form of traditional herbs without preservatives so that they are safe for body health. In addition, branding can make the surrounding community have an entrepreneurial spirit by utilizing the existing natural potential. The partners chosen in this community service community service program are productive partners, namely UMKM Jamu Widjaya. The method of implementing this service is Asset Based Community Development (ABCD) which consists of five steps, namely discovery, dream, design, define and destiny. The results of this service can be seen that there are significant changes, ranging from the quality of herbal products to long-lasting syrups, the packaging / packaging becomes more attractive, because there is a re-designed logo to the manufacture of neon boxes. The marketing method, which was originally only through word of mouth and telephone, has now entered the marketplace, so that consumer interest in products has increased compared to before the existence of branding. This community service program has proven to be very helpful for Jamu Widjaya in developing herbal products into the form of herbal syrup and an increase in sales can be seen during the program running from week 3 to week 4.
Peningkatan Produktifitas Usaha Keripik Singkong Melalui Pendampingan Teknologi di Desa Geneng Kabupaten Jepara Muhammad Abid Birrul Jabbar Shobir; Decky Rochmanto; Ahmad Ainur Rifqi; Dawam Khusnu Chuluq; Fery Irawan; Linda Yuliana; Melina Indah Susanti Azzahro; Muhammad Andriyan Saputra; Muthmainatus Tsaniah; Nita Lutfiana; Siti Yulia Zusnita
Khaira Ummah Vol. 1 No. 01 (2022): Khaira Ummah Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.651 KB) | DOI: 10.34001/khairaummah.01012022-3

Abstract

Cassava chips are one of the snacks favored by residents because of their crunchy texture and can be enjoyed in any circumstances while relaxing. However, most cassava chips entrepreneurs still use packaging that is fairly monotonous and old-fashioned so that cassava chips are mostly only enjoyed by the elderly. This was also experienced by the partners chosen by the Geneng Village Community Service Team. The packaging used by partners is still in the form of clear plastic with a piece of paper inside that says "Taqiya Chips". In addition to packaging that is still ancient, marketing can also be said to be still in a limited reach, namely only in shops around the production site. This is what underlies the Geneng Village Community Service Team to serve these partners. The method that the author uses in this research is Community-Based Research where the author involves partners as work partners. The method used in this community service activity is Asset Based Community Development (ABCD) where this method utilizes the assets and potentials around them. The owner of Taqiya Chips has the potential to make a product from his private garden which becomes a chip product that can be sold. The problems faced are packaging that is still monotonous and unattractive, logos that are only in the form of writing, and marketing targets that are still narrow. The KKN team provided an innovation for branding Taqiya Chips. Then carry out packaging updates and create a logo with a new design appearance, then do product marketing that will be branded through Shopee, Instagram and Tokopedia, then the products will start to be distributed.
Co-Authors Achmad Eriel Pangestu Achmad Rafiul Umam Agum Wahyu Prasetya Ahmad Ainur Rifqi Ahmad Naufal Ilmi Fasya Ahmat Wakit Ainis Safaah Anak Agung Gede Sugianthara Arif Mustofa Ariyanto Ariyanto Ariyanto Ariyanto Ariyanto Arum Dina Prajna Paramita Dawam Khusnu Chuluq Dwi Retna Sulistyawati Dwika Fatimatuz Zaroh Dyah Ayu Nurwidyaningsih Fara Fitriatul Fauziah Fery Irawan Gunawan Mohammad Heru Saputro Khoirur Rozaq Khotibul Umam Khotibul Umam Khotibul Umam Lilik Sulistyo Linda Yuliana Maharani Nilamsari Maulida Azizan Najwa Mayang Tiara Melina Indah Susanti Azzahro Mochammad Qomaruddin, ST.,MT., IPM. Mochammad Qomaruddin, ST.,MT., IPM. Muhammad Abid Birrul Jabbar Shobir Muhammad Andriyan Saputra Muhammad Angga Prasetiyo Utomo Muhrodi Muhrodi Muthmainatus Tsaniah Nia Zuliyana Nina Febriani Nita Lutfiana Nor Hidayati Qomaruddin, Mochammad Rika Mawati Saputro, Yayan Adi Shahnaz Surayya Siti Rois Yuliasuti Siti Yulia Zusnita surya aninda Wahyu Setyo Darmoko Yayan Adi Saputro Yayan Adi Saputro