Viking orbiter stereo imaging catalog

The extremely long missions of the two Viking Orbiter spacecraft produced a wealth of photos of surface features. Many of which can be used to form stereo images allowing the earth-bound student of Mars to examine the subject in 3-D. This catalog is a technical guide to the use of stereo coverage within the complex Viking imaging data set. Since that data set is still growing (January, 1980, about 3 1/2 years after the mission began), a second edition of this catalog is planned with completion expected about November, 1980

Viking orbiter stereo imaging catalog

The extremely long mission of the two Viking Orbiter spacecraft produced a wealth of photos of surface features. Many of these photos can be used to form stereo images allowing the student of Mars to examine a subject in three dimensional. This catalog is a technical guide to the use of stereo coverage within the complex Viking imaging data set

Analysis of complex singularities in high-Reynolds-number Navier-Stokes solutions

Numerical solutions of the laminar Prandtl boundary-layer and Navier-Stokes equations are considered for the case of the two-dimensional uniform flow past an impulsively-started circular cylinder. We show how Prandtl's solution develops a finite time separation singularity. On the other hand Navier-Stokes solution is characterized by the presence of two kinds of viscous-inviscid interactions that can be detected by the analysis of the enstrophy and of the pressure gradient on the wall. Moreover we apply the complex singularity tracking method to Prandtl and Navier-Stokes solutions and analyze the previous interactions from a different perspective

The Effectiveness of Transtheoretical Model to Reduce Compulsive Internet Use of Senior High School Students

Abstract: This research aims at examining the effectiveness of transtheoretical model to reduce compulsive internet use of Senior High School students. This research employed single subject design approach. The subject of this research is four students of X graders at St. Joseph Senior High School Malang which obtained high compulsive internet use score. This research utilized transtheoretical model counseling guidebook, compulsive internet use scale, observation and interview guidebook. The results of significant visual and score margin between pre-test and post-test indicate that transtheoretical model is effective to reduce compulsive internet use among Senior High School students.Abstrak: Penelitian ini bertujuan mengetahui keefektifan transtheoretical model untuk menurunkan compulsive internet use siswa Sekolah Menengah Atas (SMA). Penelitian ini menggunakan rancangan single subject design. Subjek penelitian terdiri dari empat siswa kelas X SMA Kolese Santo Yusup Malang yang memiliki skor compulsive internet use dalam kategori tinggi. Instrumen yang dipergunakan dalam penelitian ini adalah panduan pelaksanaan konseling transtheoretical model, skala compulsive internet use, pedoman observasi dan pedoman wawancara. Hasil penelitian yang dianalisis menggunakan analisis visual menunjukkan adanya perbedaan tingkat compulsive internet use siswa sebelum dan sesudah diberikan intervensi berupa konseling transtheoretical model.DOI: https://doi.org/10.17977/um001v3i12018p00

Multimodality in Aerodynamic Wing Design Optimization

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143093/1/6.2017-3753.pd

THE CONSTRUCTION OF SEMAR COUNSELING THROUGH AN OBJECTIVE HERMENEUTICAL STUDY ON THE NOBLE VALUES OF SEMAR TEXT

This study is based on the importance of conception and cultural propositions as efficacy in the implementation of counseling practices as a key in problem-solving. Indonesia is a great nation having various religions, tribes, cultures and it is even listed as a country with the largest amount of local wisdom in the world. Therefore, it would be feasible if it has a goal to create a knot of Counseling filled by Indonesian culture with a grounded dialogue between soul sciences that live in Indonesian human cognition. One of the indigenous cultures of the Indonesian nation, especially in Java, which contains the noble values underlying the personality of the Java life, is puppet. The presence of Semar in puppet performance art is considered as a very popular figure by the Javanese community as the core figure of the inner world of Java society. Semar's noble set of values in handling the Pandavas' problems foster a philosophy that lends itself and presents views on Indonesian cultural counseling practices. The focus in this study is to investigate the construction of Semar counseling based on Semar's noble values.  Article visualizations

The complex network of global cargo ship movements

Transportation networks play a crucial role in human mobility, the exchange of goods, and the spread of invasive species. With 90% of world trade carried by sea, the global network of merchant ships provides one of the most important modes of transportation. Here we use information about the itineraries of 16,363 cargo ships during the year 2007 to construct a network of links between ports. We show that the network has several features which set it apart from other transportation networks. In particular, most ships can be classified in three categories: bulk dry carriers, container ships and oil tankers. These three categories do not only differ in the ships' physical characteristics, but also in their mobility patterns and networks. Container ships follow regularly repeating paths whereas bulk dry carriers and oil tankers move less predictably between ports. The network of all ship movements possesses a heavy-tailed distribution for the connectivity of ports and for the loads transported on the links with systematic differences between ship types. The data analyzed in this paper improve current assumptions based on gravity models of ship movements, an important step towards understanding patterns of global trade and bioinvasion.Comment: 7 figures Accepted for publication by Journal of the Royal Society Interface (2010) For supplementary information, see http://www.icbm.de/~blasius/publications.htm

Chaos induced coherence in two independent food chains

Coherence evolution of two food web models can be obtained under the stirring effect of chaotic advection. Each food web model sustains a three--level trophic system composed of interacting predators, consumers and vegetation. These populations compete for a common limiting resource in open flows with chaotic advection dynamics. Here we show that two species (the top--predators) of different colonies chaotically advected by a jet--like flow can synchronize their evolution even without migration interaction. The evolution is charaterized as a phase synchronization. The phase differences (determined through the Hilbert transform) of the variables representing those species show a coherent evolution.Comment: 5 pages, 5 eps figures. Accepted for publication in Phys. Rev.

The friction factor of two-dimensional rough-boundary turbulent soap film flows

We use momentum transfer arguments to predict the friction factor $f$ in two-dimensional turbulent soap-film flows with rough boundaries (an analogue of three-dimensional pipe flow) as a function of Reynolds number Re and roughness $r$, considering separately the inverse energy cascade and the forward enstrophy cascade. At intermediate Re, we predict a Blasius-like friction factor scaling of $f\propto\textrm{Re}^{-1/2}$ in flows dominated by the enstrophy cascade, distinct from the energy cascade scaling of $\textrm{Re}^{-1/4}$. For large Re, $f \sim r$ in the enstrophy-dominated case. We use conformal map techniques to perform direct numerical simulations that are in satisfactory agreement with theory, and exhibit data collapse scaling of roughness-induced criticality, previously shown to arise in the 3D pipe data of Nikuradse.Comment: 4 pages, 3 figure

Zipf law in the popularity distribution of chess openings

We perform a quantitative analysis of extensive chess databases and show that the frequencies of opening moves are distributed according to a power-law with an exponent that increases linearly with the game depth, whereas the pooled distribution of all opening weights follows Zipf's law with universal exponent. We propose a simple stochastic process that is able to capture the observed playing statistics and show that the Zipf law arises from the self-similar nature of the game tree of chess. Thus, in the case of hierarchical fragmentation the scaling is truly universal and independent of a particular generating mechanism. Our findings are of relevance in general processes with composite decisions.Comment: 5 pages, 4 figure