scholarly journals PENINGKATAN PRODUKTIVITAS IKAN LELE (Clarias sp.) SISTEM BIOFLOK DI PESANTREN MODERN DARUL MA’ARIF LEGOK, INDRAMAYU

2019 ◽  
Vol 2 (2) ◽  
pp. 113
Author(s):  
Asy Syafa Yumna ◽  
Djumbuh Rukmono ◽  
Amyda Suryati Panjaitan ◽  
Mugi Mulyono
Keyword(s):  
Water Level

Ikan lele merupakan sumber protein hewani yang bernilai ekonomis dan kebutuhannya  terus meningkat setiap tahun. Keunggulan teknologi bioflok yang mampu menggenjot produktivitas ikan menjadi lebih tinggi dengan penggunaan lahan yang tidak terlalu luas. Tujuan penelitian adalah mengevaluasi teknis budidaya ikan lele sistem bioflok, implementasi intervensi untuk meningkatkan produktivitas budidaya ikan lele sistem bioflok, mengevaluasi performa kinerja budidaya ikan lele sistem bioflok setelah implementasi intervensi, menganalisis finansial budidaya ikan lele sistem bioflok. Hasil penelitian menunjukkan rata-rata performansi kinerja budidaya dan produktivitas mengalami peningkatan, sedangkan, rasio konversi pakan mengalami kenaikan. Intervensi berdasarkan prioritas usulan pemecahan masalah yakni penambahan kuantitas blower dan titik aerasi, pembuatan water level, sampling mingguan dan membeli benih bersertifikat. Implementasi yang dilakukan mampu meningkatkan dari produktivitas sebesar Rp526.687 menjadi sebesar Rp1.242.187 dengan tingkat kelangsungan hidup sebesar 71%. Berdasarkan hasil analisis finansial layak untuk dilanjutkan dengan R/C Ratio sebesar 1,06.

SIMULATION OF ELECTRICAL MONITORING OF DAMS WITH LEAKAGE WITH A TRANSVERSE PLACEMENT OF THE MEASURING INSTALLATION

2020 ◽  
Vol 8 (4) ◽  
pp. 69-82
Author(s):  
D.S. Rakisheva ◽  
◽  
B.G. Mukanova ◽  
I.N. Modin ◽  
◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Water Level ◽  
Electrical Resistivity Tomography ◽  
Resistivity Tomography ◽  
Measuring Installation ◽  
Basic Functions ◽  
Tomography Method ◽  
Dam Monitoring ◽  
The Mathematical Model ◽  
Measurement Line

Numerical modeling of the problem of dam monitoring by the Electrical Resistivity Tomography method is carried out. The mathematical model is based on integral equations with a partial Fourier transform with respect to one spatial variable. It is assumed that the measurement line is located across the dam longitude. To approximate the shape of the dam surface, the Radial Basic Functions method is applied. The influence of locations of the water-dam, dam-basement, basement-leakage boundaries with respect to the sounding installation, which is partially placed under the headwater, is studied. Numerical modeling is carried out for the following varied parameters: 1) water level at the headwater; 2) the height of the leak; 3) the depth of the leak; 4) position of the supply electrode; 5) water level and leaks positions are changing simultaneously. Modeling results are presented in the form of apparent resistivity curves, as it is customary in geophysical practice.

Impact of seedbed and water level on the establishment of plant species associated with bog pools: Implications for Restoration

2012 ◽  
Vol 13 (3) ◽  
pp. 205-215 ◽  
Author(s):  
T. Landry ◽  
L. Rochefort ◽  
M. Poulin
Keyword(s):  
Water Level ◽  
Plant Species

Water Level Control of Small-scale Hydroelectric Power Plant

2002 ◽  
Vol 122 (6) ◽  
pp. 989-994
Author(s):  
Shinichiro Endo ◽  
Masami Konishi ◽  
Hirosuke Imabayashi ◽  
Hayami Sugiyama
Keyword(s):  
Power Plant ◽  
Water Level ◽  
Hydroelectric Power Plant ◽  
Small Scale ◽  
Hydroelectric Power ◽  
Level Control

AUTOMATIC WATER LEVEL MONITORING WITH IOT AND LPWAN

2019 ◽  
pp. 95-103
Author(s):  
Krum Videnov ◽  
Vanya Stoykova
Keyword(s):  
Water Level ◽  
Real Time ◽  
Early Warning ◽  
Water Sources ◽  
Water Levels ◽  
Water Level Fluctuations ◽  
Level Monitoring ◽  
Water Level Monitoring

Monitoring water levels of lakes, streams, rivers and other water basins is of essential importance and is a popular measurement for a number of different industries and organisations. Remote water level monitoring helps to provide an early warning feature by sending advance alerts when the water level is increased (reaches a certain threshold). The purpose of this report is to present an affordable solution for measuring water levels in water sources using IoT and LPWAN. The assembled system enables recording of water level fluctuations in real time and storing the collected data on a remote database through LoRaWAN for further processing and analysis.

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