Separation of variables in one partial integrable case of Goryachev

We show that the equations of motion in one partial integrable case of Goryachev in the rigid body dynamics can be separated by the appropriate change of variables, the new variables x, y being hyperelliptic functions of time. The natural phase variables (components of coordinates and momenta) are expressed via x,y explicitly in elementary algebraic functions.Comment: LaTex, 6 page

SeaClouds: An Open Reference Architecture for Multi-Cloud Governance

A. Brogi, J. Carrasco, J. Cubo, F. D'Andria, E. Di Nitto, M. Guerriero, D. Pérez, E. Pimentel, J. Soldani. "SeaClouds: An Open Reference Architecture for Multi-Cloud Governance". In B. Tekinerdogan et al. (Eds.): ECSA 2016, LNCS 9839, pp. 334–338, 2016.We present the open reference architecture of the SeaClouds solution. It aims at enabling a seamless adaptive multi-cloud management of complex applications by supporting the distribution, monitoring and reconfiguration of app modules over heterogeneous cloud providers.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Classification of integrable quadratic Hamiltonians on e(3)

Linear Poisson brackets on e(3) typical of rigid body dynamics are considered. All quadratic Hamiltonians of Kowalevski type having additional first integral of fourth degree are found. Quantum analogs of these Hamiltonians are listed.Comment: 11 page

Spartan Daily, February 11, 2014

Volume 142, Issue 6https://scholarworks.sjsu.edu/spartandaily/1466/thumbnail.jp

A General Approach Students’ Attitude towards to Virtual Reality Technology in Distance Education Environment

E-learning has become a prominent and effective role in recent years. The factor of place and time became ineffective in the educational process. So that anyone can learn anywhere in the world. The educational services that benefit the learner during the educational process as well as the factors of assistance are important elements that help in the success of the educational process in the environment of e-learning. The more these services, the greater the benefit from e-learning. But its way of reviewing electronic content is still ineffective. Therefore it was necessary to create a suitable environment for the learner is similar to the real reality. Through which the learner feels the integration and concentration in the academic content as if it were realistic. So, the trend was to take advantage of the virtual reality technology that have become effective in all fields. The use of this technology will help the learner gain mo re realism and make full use of the electronic content. This study reviews the effect of the use of virtual reality technology in the review of the learner\u27s electronic content, as well as the attitudes and opinions of the students of the Business Information Systems program at the Faculty of Commerce, Helwan University, Cairo, Egypt, about the use of this technology and to what extent will effect on change and effectiveness in the quality of educational process

ANALISIS KETERKAITAN KELIMPAHAN MIKROPLASTIK DENGAN SAMPAH PLASTIK PADA SUNGAI MAHAKAM DI DESA SEBULU MODERN KECAMATAN SEBULU

Salah satu permasalahan sampah nasional yaitu adanya sampah plastik yang dapat menyebabkan pencemaran lingkungan dan diperparah dengan pembuangan sampah yang tidak pada tempatnya. Akumulasi sampah plastik dalam waktu lama menyebabkan plastik tersebut terurai menjadi kepingan partikel dengan ukuran yang lebih kecil dan tak kasat mata atau biasa disebut mikroplastik. Penelitian ini bertujuan untuk mengetahui kelimpahan bentuk mikroplastik dan jenis sampah plastik, mengetahui jenis polimer, serta mengetahui korelasi antara kelimpahan mikroplastik dengan jenis sampah plastik. Identifikasi mikroplastik dilakukan dengan penyaringan menggunakan plankton net dan kertas saring kemudian dianalisis secara visual menggunakan mikroskop serta instrumen FTIR. Pendataan jenis sampah dilakukan dengan metode monitoring yang dikembangkan oleh CSIRO.  Hasil analisis ditemukan mikroplastik dengan bentuk fiber, fragmen dan film dengan kelimpahan bentuk terbanyak yaitu fiber sebanyak 21 partikel/L. Jenis polimer yang ditemukan berdasarkan hasil analisis FTIR yaitu nylon dan politetraflouoroetilena (PTFE). Kelimpahan sampah plastik yang ditemukan yaitu PET, PVC, PP, LDPE, HDPE dan Other. Jenis sampah plastik yang paling mendominasi adalah LDPE sebesar 85,48%. Korelasi antara jenis sampah plastik dan kelimpahan bentuk mikroplastik yaitu adanya fluktuasi naik dan turun yang dipengaruhi oleh kegiatan masyarakat sekitar Sungai Mahakam selain itu dipengaruhi oleh proses degradasi yang lama dan waktu retensi yang rendah pada sungai sehingga kelimpahan yang ditemukan sedikit dibanding jenis sampah yang ditemukan