89,844 research outputs found
Blackspot Location and Recommendation to Reduce Number and Severity of Accidents on Purbaleunyi Toll Road
Toll roads, as land transportation infrastructure, have an important role in Indonesia. With a high number of road crashes in Indonesia, with about 40,000 people die on the road each year, the determination of blackspot locations is crucial. The aim of this study is to analyze blackspot location on a toll road in Indonesia and, furthermore, to provide recommendations in order to reduce number and severity of accident. A case study is carried out on a toll road, named Purbaleunyi Toll Road, in West Java. Accident rate value and UCL method are used in this study to determine blackspot locations. The results indicated that there are many blackspot locations along the toll road and recommended solutions provided are adherence to traffic regulation, adherence to vehicle worthiness,dissemination of road safety importance to road users, and the implementation of blackspot treatments continuously
The effect of stirring on the heterogeneous nucleation of water and of clathrates of tetrahydrofuran/water mixtures
The statistics of liquid-to-crystal nucleation are measured for both water
and for clathrate-forming mixtures of tetrahydrofuran (THF) and water using an
automatic lag time apparatus (ALTA). We measure the nucleation temperature
using this apparatus in which a single sample is repeatedly cooled, nucleated
and thawed. The effect of stirring on nucleation has been evaluated numerically
and is discussed. We find that stirring of the solution makes no difference to
the nucleation temperature of a given solution in a given tube.Comment: 4 pages, 4 figure
Cellular repair/misrepair track model
A repair/misrepair cell kinetics model is superimposed onto the track structure model of Katz to provide for a repair mechanism. The model is tested on the repair-dependent data of Yang et al. and provides an adequate description of that data. The misrepair rate determines the maximum relative biological effectiveness (RBE), but similar results could arise from indirect X-ray lethality not include in the present model
Vacuum thermal conductivity measurements of NASA E4A1 elastomeric heat shield material
Line source vacuum thermal conductivity measures for elastomeric heat shield materia
Analytical investigation of side jet supersonic stream interaction including vortex flow in rocket nozzles for thrust vector control
Analytical investigation of side jet supersonic stream interaction including vortex flow in rocket nozzles for thrust vector contro
Methods and apparatus employing vibratory energy for wrenching Patent
Ultrasonic wrench for applying vibratory energy to mechanical fastener
Price Relationships between Hard Red Spring and Hard Red Winter Wheats in the United States
Price differentials for Hard Red Spring and Hard Red Winter wheat of different protein levels are examined in this study.Demand and Price Analysis, Marketing,
Transport model of nucleon-nucleus reaction
A simplified model of nucleon-nucleus reaction is developed and some of its properties are examined. Comparisons with proton production measured for targets of Al-27, Ni-58, Zr-90, and Bi-209 show some hope for developing an accurate model for these complex reactions. It is suggested that binding effects are the next step required for further development
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