6 articles in this issue
Suprihanto Notodarmojo,Andriani Astuti,Anne Juliah
A field trial of flocculation using gravel bed has been done using PDAM’s Kota Bandung as the location. The reactor used a PVC pipe that consisted of an average diameter of 2,025 cm gravel. PDAM’s raw water was used as throughout the experiment. As coagul... see more
E. T. Baskoro,Y. M. Cholily
For a graph G, with the vertex set V(G) and the edge set E(G) an edge-magic total labeling is a bijection f from V(G)UE(G) to the set of integers {1,2,...., |V(G)|+|E(G)} with the property that f(u) + f(v) +f(uv) = k for each uv elemen E(G) and for a fixe... see more
Suprihanto Notodarmojo,T. Zulkarnain,Dini Mayasanthy,M. Irsyad
A study on the effect of pretreatment on the use of cellulose acetate (CA) membrane using cross-flow system to treat oil-water emulsion waste came from metal cutting process of an automotive industry has been done. The objectives of this research are to s... see more
Hasanuddin Z. Abidin,Heri Andreas,Dinar Maulana,M. Hendrasto,M. Gamal,Oni K. Suganda
Semeru is the highest mountain in Java island with an altitude of about +3676 m above the sea level. This altitude was measured during the Dutch colonial times using the Triangulation method, which is based on angles measurements using a theodolite on the... see more
Harry Budiharjo Sulistyarso,Suryasatriya Trihandaru,Leksono Mucharam,Septoratno Siregar,Ivanky Saputra,Sinatra Canggih
Line packing is a process storing gas in pipeline by increasing inlet gas flow rate while outlet gas flow rate is kept constant. This difference of gas flow rate causes the gas flow in pipeline being transient. Line packing process is intended to guarante... see more
M. Syahril Badri Kusuma,M. Cahyono,Eka Oktarianto
This paper present the results of the ?-e model development for simulating two dimensions flow in a small reservoir. The study was aimed to see wether the turbulent component could be better accounted by using the ?- e model. The numerical model was devel... see more