Diponegoro University as a leading institution of higher education in Central Java is expected to be a pioneer and an example in terms of waste management. But in fact now has Undip not have an adequate system of waste management. Current conditions almost all existing studies program has been concentrated in the campus area Tembalang still treats conventional waste by dumping it in the trash is mixed with and without prior sorting which will eventually increase the weight of the existing TPS and TPA. This makes the system of waste management in the UNDIP really need to be evaluated and reviewed. This study dimaksudakan to optimize waste management system with the principles of the 3R (reuse, reduce, recycle) in order to minimize the waste problem. Besides this optimization also as an effort to realize the vision of the university Undip as environmentally friendly (eco-campus) and a role model for waste management agencies and other institutions

Propellers is part movement propulsion system of the ships wich duty for pushing of the ship at forward movement and towing the body of ship at backward movement. As a part mechanical drive propeller consist of some blade attached to the boss and mounted on the propeller shaft of the axis relationships from the main engine of the ships. Propeller can drive of the ships both forward and backward with by rotating on its axis. To produce forward and backward movement of the ships can be done in two ways namely with use controllable pitch propellers and with use fixed pitch propellers.

When the manufacturer selling products with warranties, it causes additional costs (called warranty costs) toservice any claims under warranty. Reducing warranty costs is an issue of great interest to manufactures. Thethree ways to reduce warranty costs i.e. improving product reliability, use of preventive maintenance andwarranty servicing strategy.This research deals with a warranty servicing strategy for items sold with a one dimensional warranty where theperiod offered is relatively long. For instance, a computer warranted for three years. For repairable productssold with free repairable warranty (FRW), the manufacturer has the option of either repairing or replacing thefailed item with a new one.In the strategy studied, the decision of repairing or replacing the failed item under warranty is based on its ageat failure. Under the strategy, for failures with age being greater than or equal to threshold parameter will berectified by replacement and all other failures under warranty will be repaired. This strategy is characterized bya threshold parameter which minimizes the expected warranty cost. The optimal parameter is sought by usingnumerical computation. Some numerical examples are given for the purposes of illustration.

Crack defect on main deck plate is source of failure ship structure. Small intensity of crack in the future canbe to large influence lateral force and bending moment. Crack defect characteristics can be to know shearintensity factor (SIF) on main deck is used mathematics simulation model based on fracture mechanics (FM)and finite element method (FEM). Goal of this research know characteristics main deck plate get a crack withload forces while deck plate start is loading until to crack propagation good stability.The MT Klawotong is chose in this research . Main deck plate is location as the sample. It is number 3 oncargo oil. Any analysis of data that is to counting of profile constructions, length strength, modeling withANSYS Version 9.0 and counting of shear intensity factor (SIF).Research on this structure failure result any substance that is, Sagging condition plate shears 50.34 MPa withsafety factor 8,939 crack long maximum is 0.02 m, value of shear intensity factor (SIF) KI WD. Pilkey = 12.615MPa m , KII WD. Pilkey = 0 MPa m , KI ANSYS = 13.,451 MPa m , KII ANSYS = 0.693 MPa m . Prosentaso oferror counting programe KI = 0.062 %, KII = 1% . The ather hand Hoging condition plate shears 15.08 MPawith safety factor 29.841 crack long maximum is 0 .3 m , value of shear intensity factor (SIF) KI WD. Pilkey=14.,645 MPa m , KII WD. Pilkey = 0 MPa m , KI ANSYS = 15.585 MPa m , KII ANSYS = 0.352 MPa m ,Prosentaso of error counting programe KI = 0.062 %, KII = 1%.

Samiran Dam is located in Grawah river, Boyolali Regency, Central Java Province. The aim of Samiran Damis for service water supply. The hydraulic model test are conducted for clarifying the appropriateness ofhydraulic design, to perfect and optimize the hydraulic design of the spillway. One of the main objective is tostudy the flow pattern approaching spillway, at spillway, stilling bazin and river in the downstream of thestilling bazin.The detail model is made as three dimensional model, covering the part of reservoir, spillway, stilling bazin andriver in the downstream of spillway. The hydraulic model test was carried out in The Hydraulic Laboratory ofExperimental Station for River in Surakarta.Base on the study result then there are necessary to modified design of the stilling bazin and to add groundsillconstruction at the river in the downstream of the stilling bazin

Sand and Gravel mining activity in Cepogo District come out pro and contra in that society. This researchaims to figure out the impact of mining from physical aspect. Parameters used in this research such ascondition and mining activity, hydrology, erosion, land exchanged, infrastructure condition, mass wasting,land use and reclamation effort. From those parameters are counted mining properness in those locations.According with data analysis, mining activity in eight villages in Cepogo District has improper mining(e.g. Gedangan, Sumbung, Paras, Mliwis, Sukabumi, Cepogo and Cabean Kunthi) and in one location isvery improper mining (Wonodoyo). This condition due to mining didn’t follow good mining practice(GMP).

One of gender issues in architecture is domesticity, space in a home. According to feminist perspectivehome spatial design must be consider women’s spatial use for housework activities. Preliminaryresearch shows that mothers of a household tend to use kitchen, living room, and master bedroom intheir everyday activities so there must be connectedness appearance among those spaces. In fact, homedesign in Indonesia pays less attention to it. This research aimed to find out how far real-estatedeveloper accommodates the women’s spatial use for housework activities on their products. Data isobtained from 81 real estate advertisements on newspaper. The data is treated by content analysis tofind the offering items on the advertisement. The result show that 19% real- estate developers use facilityof housing and environment as superiority on their products and only 3.5% of them use householdspatial needs. It can be concluded that home design in Indonesia pay less attention to women’s spatialuse for housework activities

In our previous analysis of trusses, it was always assumed that the truss members are joined by ideal hingesand that loads are applied only at joints. The centroidal axes all of members are stright, coincide with thelines connecting the joint center, and lie in a plane that also contains the lines of action of all the loads andreaction. Thus the members of truss are subjected to axial force only, and these can be determined by staticmethod. A stress analysis base on these assumtion leads to the determination of so – called “primarystresses”.In actual cases the joint are usually riveted or welded; and because of this fact the members undergo, notonly axial forces, but also bending stresses from secondary moment, cuased by this condition are called“secondary stresses”. In discusing secondary stresses we shall consider only trussses in one plane andassume that this plane represents the plane of symmetri for all members and that external loads are acting inthe same plane. Of these the most important are caused by the fact that the joint are rigid, and hence themembers are not free to change their relative directions when the truss is deformed. This problem canlikewise be solved very eficiently by means of moment distibution.From the first analyze result, it was obtained the scondary tension ratio with the primary tension at the pullshaft about 19.20 %. This result is significant that it will increase the existence of primary tension. At theanalyze by SAP 2000 is obtained that the end tension much more lower than the scondary tension in the firstanalyze. This is need to obtain attention at planning trusses.

Lubrication is important parameter in whole operation in diesel engine, bad lubrication will affect trouble inoperation lubrication have double function decrease friction and cooling. So lubrication has to be treatmentto increase quality by cooling method. Cooling method is done with bat exchanger of shell and tube type. .