Multistage Benders' Decomposition applied to Multiperiod, Multicommodity Production, Distribution and Inventory System

It has become more and more important for some industries to have an efficient program for their long range activities. Such a program usually means a production, distribution, and inventory plan of multicommodity over a multiperiod range. The network flow model is a standard way to represent the problem. Recent advances in the computational aspect of the generalized network (Glover et al. 1978:24, 1209-1220) gives us an indication of broader areas of application. However, the real world imposes complicated constraints upon us which can not be represented in the network models, not even in generalized network models. In a previous paper (Tone 1977a:20, 77-93), the author tried a decomposition of network type constraints and nonnetwork type constraints (called pattern constraints) by using Benders' partitioning procedure (Benders 1962:4, 238-252). The computational experiments show that the decomposition technique works well. In this paper, the author develops a method to handle the multiperiod problem, where the problems in each period are coupled with the succeeding one by the existence of the inventory activities. Our system is doubly decomposable; by the existence of the pattern constraints and by inventory activities. The algorithm consists of two parts, one for solving the network flow problem in each period and the other for solving the pattern and coupling constraints which may be called a master problem. Finite convergence is guaranteed

Kinerja Pemerintah Kota dalam Mengatasi Persampahan di Makassar

This study aims to determine the factors that influence in dealing with waste in the city of Makassar, this study used phenomenological approach and classified as qualitative research. The results showed that the waste problem is still on the agenda of homework that has not been able to overcome the maximum to date, this gives an indication that there is no synergy between the leadership of stakeholders, employees and the community in order to jointly tackle the waste problem, so the government needs to involve the community as a subject development in addressing the waste problem in the city of Makassar

Analisa Kerja Access Point Jaringan Wireles pada Universitas Al Asyariah Mandar

  Perkembangan  teknologi  wireless  saat  ini  berkembang  sangat  cepat  seiring  dengan kebutuhan  informasi  yang  semakin  tinggi.  Hal  ini  disebabkan  oleh  beberapa  faktor diantaranya  adalah kemampuan komunikasi secara bergerak, keandalan  sistem semakin meningkat,   kerahasiaan   informasi   terjamin,   biaya   pembangunan   relatif   lebih   murah dibanding wireline dan ketersediaan pelayanan yang semakin tinggi, tidak terbatas waktu dan tempat sehingga konsumen dapat berkomunikasi kapanpun  dan dimanapun berada. WI-FI ( Wireless Fidelity) merupakan teknologi WLAN yang sedang berkembang pesat  yang  mengunakan  standar  pengembangan  dari  IEEE  802.11  yaitu  :  802.11b, 802.11a, dan 802.11g. WLAN sendiri merupakan sistem komunikasi data yang mampu menggantikan  atau  memperluas  jaringan  wired  LAN  untuk  memperoleh  fungsi  nilai tambah, menggunakan teknologi Radio Frekuensi (RF), transmit dan receive data melalui gelombang  udara,  melewati  dinding,  langit-langit  dan  bahkan  struktur  semen,  tanpa menggunakan jaringan kabel. WLAN mampu menyediakan semua fitur dan manfaat dari teknologi  tradisional  LAN  seperti  Ethernet  atau  Token  Ring  tetapi  dengan  kelebihan tanpa menggunakan kabel, sehingga mobile dan fleksibel. Radio Access  Point  atau  sering  disebut  dengan  AP,  sebenarnya  mempunyai  kesamaan fungsi  dengan  hub  dan  switch.  Atau biasa juga disebut  dengan  station pemancar daripada penerus sinyal. Access point merupakan tipe spesial dari wireless station yang menerima transmisi radio dari station radio lainnya di jaringan wireless dan   meneruskan   sinyal-sinyal   tersebut   ke   jaringan   terakhir.   Kata Kunci: Access Point, Jaringan Wirele

Policy Studies Economics and Business Administration

Abstract The phrase “add them up and divide by two (Tashite Ni De Waru, in Japanese) ” is an established maxim in Japanese society, and has its historical roots in Japanese culture. This means adopting a middle course between two competing proposals in order to avoid a conflict. In the spirit of Max Weber (1949), this paper establishes a systematically correct scientific proof of “add them up and divide by two ” (Add-Div), by using conceptions of the two OR methodologies, data envelopment analysis (DEA) and cooperative game theory. More specifically, in the DEA game scheme of Nakabayashi and Tone (2006), we study an allocation problem with two criteria, in which game-theoretic solutions such as the Shapley value and the nucleolus prove coincident with the result of the Add-Div method. While today some brilliant minds may propose that people should abandon the Add-Div mentality, this paper enables one to re-consider the concept of Add-Div not only as a matter of mentality but also as an application of OR methods. We also illustrate the use of the Add-Div concept where the “assurance region ” (AR) method of DEA is incorporated

Effects of eicosapentaneoic acid on innate immune responses in an Atlantic salmon kidney cell line in vitro

publishedVersio

En levende lærebok : en kvalitativ studie om bruk av interaktive læreprogram i ferdighetslæring

Hovedfagsoppgave i helsefag hovedfag – Universitetet i Bergen, 200

Oxidized Dietary Oil, High in Omega-3 and Omega-6 Polyunsaturated Fatty Acids, Induces Antioxidant Responses in a Human Intestinal HT29 Cell Line

When oxidized, dietary oils generate products which have the potential to cause adverse effects on human health. The objective of the study was to investigate whether lipid oxidation products in an oxidized dietary oil can be taken up in intestinal cells, induce antioxidant stress responses and potentially be harmful. The in vitro cell model HT29 was exposed to camelina oil with different extents of oxidation, or only 4-hydroxy-2-hexenal (HHE) or 4-hydroxy-2-nonenal (HNE). The cellular content of HHE increased with an increasing extent of oxidation of the camelina oil added to the cell’s growth media, whereas HNE did not show a similar trend. Deuterated HHE was taken up by the HT29 cells, with 140 μM HHE metabolized within 0.5–1 h. The low oxidation degree of the camelina oil increased the gene expression of antioxidant markers (GPX, ATF6, XBP1). The increase in the gene expression of SOD at medium oxidation levels of the oil might indicate different regulation mechanisms. Highly oxidized camelina oil and a low concentration of HHE, over time, induced SOD and catalase enzyme activity in HT29 cells. Oxidized camelina oil contains multiple oxidation products which can be responsible for the intracellular responses observed in HT29 cells, while HHE and HNE in combination with other oxidation products induce antioxidant defence responses.publishedVersio

ANALISIS KINERJA ALGORITMA DELAY SCHEDULING PADA HADOOP TERHADAP KARAKTERISTIK RESPONS TIME UNTUK PENGIRIMAN 2 JOB YANG BERBEDA

Perkembangan teknologi sistem informasi sangat pesat yang berbanding lurus dengan pertumbuhan yang sangat besar.  Data tersebut sudah sangat sulit untuk dikoleksi, disimpan, dikelola maupun dianalisa, dibutuhkan infrastruktur dan teknologi komputer yang disebut Parallel computing. Parallel computing adalah penggunaan beberapa komputer yang saling terhubung untuk mengolah data dalam ukuran yang besar dengan menggunakan Hadoop. merupakan platform untuk mengolah data yang berukuran besar (big data) secara terdistribusi dan dapat berjalan diatas cluster. Pada penelitian ini menggunakan metode FIFO dan Delay Scheduling pada Hadoop sebagai job scheduler. Kedua algoritma nantinya dibandingkan dan diimplementasikan pada berbagai jenis karakteristik job dengan menggunakan parameter respons time sebagai acuan perhitungan performansi sistem terhadap karakteristik tugas dan jumlah tugas yang dijalankan pada masing - masing job scheduler. Kata Kunci : Analisis, Hadoop, Delay Scheduling.