The Construction of Finite Difference Approximations to Ordinary Differential Equations

Finite difference approximations of the form Σ^(si)_(i=-rj)d_(j,i)u_(j+i)=Σ^(mj)_(i=1) e_(j,if)(z_(j,i)) for the numerical solution of linear nth order ordinary differential equations are analyzed. The order of these approximations is shown to be at least r_j + s_j + m_j - n, and higher for certain special choices of the points Z_(j,i). Similar approximations to initial or boundary conditions are also considered and the stability of the resulting schemes is investigated

Context-based Contact Suggestions for Content Sharing

When a user selects content to share, some operating systems present a user interface in which the user is shown a shortcut to share the content with particular contacts and/or via particular applications. However, such suggestions often do not match the user’s intent and are therefore inaccurate and accordingly, have low click-through rates. This disclosure describes techniques, implemented with user permission, to assign an affinity signal to a given piece of content, such that the suggestion interface offers the most relevant contacts to share the content with. The affinity signal is based on the content as well as the context, determined with user permission

PERBANDINGAN PERKERASAN LENTUR DAN PERKERASAN KAKU TERHADAP BEBAN OPERASIONAL LALU LINTAS DENGAN METODE BINA MARGA PADA RUAS JALAN SAMPANG - PAMEKASAN (Sta.84+000 – 97+000)

PERBANDINGAN PERKERASAN LENTUR DAN PERKERASAN KAKU TERHADAP BEBAN OPERASIONAL LALU LINTAS DENGAN METODE BINA MARGA PADA RUAS JALAN SAMPANG - PAMEKASAN (Sta.84+000 – 97+000) EUSEBIUS CERINO BEKA 0653010035 Abstrak Jalan merupakan suatu konstruksi yang berfungsi sebagai prasarana perhubungan darat yang memegang pranan penting dalam kehidupan manusia, dengan adanya jalan yang memadai dapat memperlancar distribusi barang dan jasa serta manusia. Perencanaan perkerasan merupakan salah satu upaya untuk mengatasi permasalahan lalu lintas yang terjadi di pulau Madura, sehingga diperlukan penambahan kapsitas jalan yang tentu akan memerlukan metode efektif dalam perancangan maupun perencanaan agar diperoleh hasil yang terbaik dan memerlukan unsur kenyamanan, keamanan, dan keselamatan bagi pengguna jalan sehingga pengambilan batas ijin mengacu pada metode yang dikeluarkan oleh BINA MARGA. Dalam penulisan tugas akhir ini lokasi yang dipakai adalah jalan Sampang – Pamekasan dengan (Sta.84+000 – 97+000) dan juga menggunakan jenis perkerasan yang berbeda yaitu perkerasan lentur dan perkerasan kaku, dari kedua hasil jenis perkerasan tadi dibuat suatu perbandingan beban operasional lalu lintas yang membuktikan efisiensi biaya pelaksanaan dan biaya pemeliharaan perkerasan mana yang lebih baik dengan umur rencana 20 tahun. Dari hasil perhitungan yang telah dibuat pada tugas akhir ini didapat beban operasional yang melewati jalan Sampang – Pamekasan pada tahun ke-20 sebesar 70.679 smp / hari. Untuk tebal perkerasan lentur didapat lapisan perkerasan LASTON MS 744 dengan tebal 10 cm, laston atas 15 cm dan lapisan pondasi bawah sirtu (kelasa A 70 %) dengan tebal 30 cm, dan untuk perkerasan kaku dengan lapisan pelat beton (surface) K-350 dengan tebal 21 cm, dengan sub-base dengan tebal 15 cm. Diketahui juga biaya investasi awal dan biaya perawatan untuk perkerasan lentur pada tahun ke-20 sebesar Rp 16.581.985 / m’ sedangkan untuk perkerasan kaku sebesar 20.549.776, / m’. Kata kunci :Perkerasan lentur, perkerasan kaku, metode BINA MARG

Modeling FCC spent catalyst regeneration with computational fluid dynamics

The coke laden spent catalyst from oil cracking in the FCC riser is burnt off in the regenerator. The heat generated which is used to raise the circulating catalyst temperature provides the heat for cracking of oil to valuable products in the riser. Regeneration of spent catalyst is there key to successful operation of the FCC unit. Efficient regeneration depends on good spent catalyst and combustion air distribution. Ideally, the air is distributed to match the spent catalyst distribution. The FCC regenerator has been modeled using various modeling techniques. Technip S&W is using computational fluid dynamic (CFD) techniques to develop a tool to simultaneously model both hydrodynamics and spent catalyst regeneration in the FCC regenerator. Coke burning kinetics descriptions are provided through proprietary combustion kinetic equations with appropriate kinetic constants. The results provide detailed qualitative mapping of the regenerator behavior in terms of flue gas composition, temperature distribution including afterburning, regenerator bed density in both axial and radial planes. The CFD coupled with spent catalyst regeneration kinetics can be used to quantitative evaluate regenerator performance and show benefits of technology upgrade. This paper discusses the development of the CFD tool including a case study of a commercial regenerator unit

KINERJA PEGAWAI TERHADAP PENINGKATAN KUALITAS PELAYANAN KARTU TANDA PENDUDUK ELEKTRONIK (E-KTP) (Studi Penelitian Pada Dinas Kependudukan dan Catatan Sipil Kabupaten Timor Tengah Utara)

ABSTRAK Nama : Eusebius Leltakaeb, NPM : 21170125, Judul Skripsi : Kinerja Pegawai Terhadap Peningkatan Kualitas Pelayanan Kartu Tanda Penduduk Elektronik (E-KTP), Studi Penelitian Pada Dinas Kependudukan dan Catatan Sipil Kab. TTU. Permasalahan yang diangkat dalam penelitian ini ialah adanya keluhan masyarakat tentang alur pelayanan dan jaminan waktu dalam mengurus E-KTPpada Dinas Kependudukan dan Catatan Sipil Kab.TTU. Tujuan dari penelitian ini ialah untuk dapat mengetahui kinerja pegawai pada Dinas Kependudukan dan Catatan Sipil Kab. TTU dalam melayani pengurusan E-KTP bagi masyarakat. Jenis dan Metode yang digunakan dalam penelitian ini ialah metode deskriptif kualitatif dengan teknik pengumpulan data berupa observasi, wawancara dan dokumentasi. Hasil penelitian menunjukan bahwa dalam pelayanan pembuatan E-KTP kepada masyarakat Kab.TTU, Dinas Kependudukan dan Catatan Sipil melakukan kegiatan menghimpun berkas administrasi pemohon berupa verifikasi berkas dan perkaman dengan menerapkan lima dimensi pelayanan yakni berwujud, kehandalan, respon/ketanggapan, jaminan dan empati yang menunjukan pelayanan pembuatan E-KTP berjalan dengan baik dan lancar hingga menimbulkan kepuasan masyarakat dan sejalan dengan itu meningkatkan kinerja pegawai Dinas Kependudukan dan Catatan Sipil Kab.TTU. Kata Kunci : Kinerja Pegawai, Peningkatan Kualitas Layanan E-KTP

LABOUR UNIONS, CIVIL SOCIETY ORGANISATIONS AND THE ELIMINATION OF CHILD LABOUR IN NIGERIA (A COMPARATIVE ANALYSIS)

Child labour in Nigeria has been a problem that is becoming alarming in the society and also in the international community. Its elimination remains a major source of concern to the labour unions and industrial relations circles of the nation. This paper tries to look at this problem by looking at labour unions power centrality, its largeness and density of population amongst other associations in the country, to build a framework of alliance and solidarity that shows its central role as the protector of the citizen’s right to work, to fair work and treatment of workers. This could be fully enhanced into alliances, and connected networks with the civic society organizations and other meaningful groups to eliminate this modern menace of child labour. We used a comparative study method in which we used the connectedness to power of some civic associations that can change government or persuade its decisions on quick measures that could be employed to eliminate child labour in the Nigerian society. We also tested the key argument that unions power, centrality and largeness has a significant and positive effects on government, in controlling socio economic policies for the common good. Union centered, union linked civic association’s networks and connectedness can be useful in mobilizing other groups and the civil society to strengthen forces in the pursuit of a quicker implementation of measures on the elimination of the use of child labour. We highlighted therefore the important role of labour unions with its connectedness, alliance and solidarity with civic society organization in holding the government responsible to making effective policies and being accountable to the education and growth of its children for future socio-economic and political development of this nation