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Sample records for bom refining districts

  1. BOMS-D-16-00881.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00881.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  2. BOMS-D-16-00611.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00611.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the ...

  3. BOMS-D-16-00728.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00728.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  4. BOMS-D-16-00748.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00748.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the ...

  5. BOMS-D-15-00472.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-15-00472.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  6. BOMS-D-16-00748.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00748.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  7. BOMS-D-16-00560.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00560.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  8. BOMS-D-16-00613.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00613.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  9. BOMS-D-16-00443.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00443.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  10. BOMS-D-16-00614.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00614.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  11. BOMS-D-16-00790.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00790.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  12. BOMS-D-15-01099.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-15-01099.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the ...

  13. BOMS-D-16-00720.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00720.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the ...

  14. BOMS-D-16-00399.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00399.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  15. BOMS-D-16-00368.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00368.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  16. BOMS-D-16-00569.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00569.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  17. BOMS-D-16-00992.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00992.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  18. BOMS-D-16-00400.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00400.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the ...

  19. BOMS-D-15-01047.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-15-01047.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  20. BOMS-D-17-00315.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-17-00315.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  1. BOMS-D-17-00377.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-17-00377.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  2. BOMS-D-17-00607.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-17-00607.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  3. BOMS-D-15-01110.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-15-01110.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  4. BOMS-D-15-00965.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-15-00965.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  5. BOMS-D-17-00085.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-17-00085.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  6. BOMS-D-16-00562.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00562.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  7. BOMS-D-16-00644.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00644.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  8. BOMS-D-16-00461.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00461.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the ...

  9. BOMS-D-17-00322.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-17-00322.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  10. BOMS-D-17-00399.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-17-00399.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  11. BOMS-D-17-00095.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-17-00095.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  12. BOMS-D-16-00015.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00015.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  13. BOMS-D-16-00407.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00407.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  14. BOMS-D-16-01004.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-01004.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  15. BOMS-D-15-00514.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-15-00514.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  16. BOMS-D-15-01104.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-15-01104.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  17. BOMS-D-16-00728.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-16-00728.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the ...

  18. BOMS-D-17-00606.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; BOMS-D-17-00606.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

  19. BOMS-D-16-00720.pdf | forthcoming | boms | Volumes | public ...

    Indian Academy of Sciences (India)

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  20. Penanganan Teror Bom Thamrin Ditinjau Berdasarkan Skep Kapolri Nomor: 172 Tahun 2014 tentang Penanganan Tempat Kejadian Perkara (PTKP Bom

    Directory of Open Access Journals (Sweden)

    Dedy Tabrani

    2016-11-01

    Full Text Available Abstrak Fenomena ISIS pasca Al-Qaeda telah memberikan harapan baru dan semangat baru kelompok radikal Islam di Indonesia. Salah satu aksi terorisme yang dilakukan oleh anggota ISIS di Indonesia adalah terror Bom Thamrin pada 14 Januari 2016 dengan pola dan modus berupa bom dan penembakan. Polri sebagai leading sector penanganan terorisme, telah merumuskan beberapa peraturan mengenai penanganan terorisme, misalnya, Keputusan Kepala Kepolisian Negara Republik Indonesia Nomor: 172 Tahun 2014 tentang Penanganan Tempat Kejadian Perkara Bom (PTKP. Keputusan tersebut menjadi landasan kepolisian dalam penanganan kasus teror di lapangan. Untuk itu, penelitian ini akan mengungkap sejauh mana penanganan terror bom Thamrin ditinjau berdasarkan Skep Kapolri Nomor: 172 Tahun 2014 Tentang Penanganan Tempat Kejadian Perkara Bom (PTKP. Kata kunci: terorisme, Teror Thamrin, ISIS, Polri   ISIS phenomena after Al-Qaeda have given new hope and spirit of Islamic radicalism groups in Indonesia. One of terrorism action by ISIS members was Thamrin bombing terror on January 14, 2016 with pattern and modus of bombings and shootings. Indonesian National Police as a leading sector in handling terrorism has formulated rules regarding terrorism handling, such as the Decree of the Indonesian National Police Chief (Perkap No. 172, 2014 on the Handling of the Crime Scene (PTKP of bomb. This decree becomes the base of police on handling terror scene. Therefore, this research can reveal how far the handling of Thamrin terror bombing based on Skep No. 173, 2014. Keywords: Terrorism, Terror of Thamrin, ISIS, Indonesian National Police

  1. Methods for automated semantic definition of manufacturing structures (mBOM) in mechanical engineering companies

    Science.gov (United States)

    Stekolschik, Alexander, Prof.

    2017-10-01

    The bill of materials (BOM), which involves all parts and assemblies of the product, is the core of any mechanical or electronic product. The flexible and integrated management of engineering (Engineering Bill of Materials [eBOM]) and manufacturing (Manufacturing Bill of Materials [mBOM]) structures is the key to the creation of modern products in mechanical engineering companies. This paper presents a method framework for the creation and control of e- and, especially, mBOM. The requirements, resulting from the process of differentiation between companies that produce serialized or engineered-to-order products, are considered in the analysis phase. The main part of the paper describes different approaches to fully or partly automated creation of mBOM. The first approach is the definition of part selection rules in the generic mBOM templates. The mBOM can be derived from the eBOM for partly standardized products by using this method. Another approach is the simultaneous use of semantic rules, options, and parameters in both structures. The implementation of the method framework (selection of use cases) in a standard product lifecycle management (PLM) system is part of the research.

  2. Teror Bom Buku di Jakarta: Peran Polri dalam Penanganan Terorisme di Indonesia

    Directory of Open Access Journals (Sweden)

    H.M.S. Urip Widodo

    2016-11-01

    Full Text Available Abstrak Penelitian ini bertujuan untuk menjelaskan teror bom buku yang terjadi di Jakarta pada 15 Maret 2011. Berdasarkan sumber data Berita Acara Pemeriksaan (BAP, penelitian ini mampu memberikan penjelasan secara kronologis rencana aksi teror bom buku. Teror bom buku ini merupakan modus baru para teroris dalam melakukan aksinya, karena yang menjadi targetnya adalah individu. Teror bom buku, apabila melihat jumlah korban dan kualitas ledakan, tidak sebanding dengan bom yang ditempatkan di gedung-gedung tertentu seperti pada kasus-kasus teror bom sebelumnya. Akan tetapi dampaknya hampir sama, bahkan teror bom buku sudah menyentuh aspek psikologi masyarakat awam. Ketakutan dan kepanikan yang melanda sampai di tingkat rumah tangga adalah bentuk keberhasilan aksi bom buku menjadi sebuah teror. Mengacu pada hukum formal yang berlaku di Indonesia, maka aksi dan pelaku bom buku dapat dikategorikan sebagai tindak pidana terorisme. Kata kunci: terorisme, bom buku, hukum, kepolisian.   This research purposes to explain a terror of book bombing which take place in Jakarta on March 15th 2011. Based on data of Police Investigation Report, it capables to give explanation chronologically of planning from terror of book bombing. This terror of book bombing is a new modus of terrorist in their activity whereas their target is an individual. If we see from the number of victim and the quality of explosion, it can not be compared with bomb which were placed on certain buildings, such as cases of bombings before. However its impact is similiar, even the terror of book bombing has reached psychological aspect of society. Fear and panic spread to reach household are illuminating the success of terror of book bombing. Referring to formal law in Indonesia, activity and person of terror of book bombing can be categorized as a criminal act of terrorism. Keywords: terrorism, bombing book, law, police.

  3. Etnografi Dampak Bom Bali terhadap Atraksi Wisata Teater Sekaa Tetekan Calonarang di Desa Kelating, Tabanan, Bali

    Directory of Open Access Journals (Sweden)

    Purwanto -

    2014-11-01

    Full Text Available Dampak pariwisata di Bali juga mulai merembet ke pedesaan, yaitu DesaKerambitan, Tabanan 30 km dari Denpasar. Kajian dampak pariwisata inidiulas dengan metode etnografi terhadap Sekaa Tetekan Calonarang di Kelating,yang dipentaskan sebagai atraksi wisata di Puri Agung Kerambitan menyajikanatraksi wisata teater Tetekan Calonarang dengan prosesi dan atribut ritual(sakral. Meskipun untuk tujuan ataraksi wisata, semua orang yang terlibat padapertunjukan harus dalam keadaan suci dan ikhlas. Upacara persiapan pertunjukanjuga dilakukan sebagaimana pertunjukan ritual, hanya dikurangi jumlah sesajinya.Ketika Bom Bali I terjadi (2002 terasa dampak pariwisata hingga 2004, SekaaTetekan Calonarang tidak dipentaskan sehingga Barong diminta untuk dipentaskan. The Etnography of Bali Bomb Impact on the Attraction of Theatrical Tourismof Calonarang Tetekan Sekaa In Kelating, Tabanan, Bali. The impact of tourismin Bali also begins pervading to rural district that is Kerambitan village, Tabanan,30 km from Denpasar. The study of the tourism impact is analyzed by the method ofethnography towards the group of Tetekan Calonarang at Kelating which performancedin an attraction of tour at Puri Agung Kerambitan and presented the theaterperformance, Tetekan Calonarang, accompanied by the sacred of procession and ritualattribute. Although it was for the purpose of performing tour, every person who wasinvolved in the show must be in a state of purity and honesty. The ceremony of pre-showwas also done as a ritual show but a reducing number of ritual offerings. When BalineseBomb I (2002 happened, gave the impact to tourism until 2004, the group of TetekanCalonarang did not perform for Puri Kerambitan so that Barong was asked to do so.

  4. Spanish Refining

    International Nuclear Information System (INIS)

    Lores, F.R.

    2001-01-01

    An overview of petroleum refining in Spain is presented (by Repsol YPF) and some views on future trends are discussed. Spain depends heavily on imports. Sub-headings in the article cover: sources of crude imports, investments and logistics and marketing, -detailed data for each are shown diagrammatically. Tables show: (1) economic indicators (e.g. total GDP, vehicle numbers and inflation) for 1998-200; (2) crude oil imports for 1995-2000; (3) oil products balance for 1995-2000; (4) commodities demand, by product; (5) refining in Spain in terms of capacity per region; (6) outlets in Spain and other European countries in 2002 and (7) sales distribution channel by product

  5. Strategic Inventory Positioning in BOM with Multiple Parents Using ASR Lead Time

    Directory of Open Access Journals (Sweden)

    Jingjing Jiang

    2016-01-01

    Full Text Available In order to meet the lead time that the customers require, work-in-process inventory (WIPI is necessary at almost every station in most make-to-order manufacturing. Depending on the station network configuration and lead time at each station, some of the WIPI do not contribute to reducing the manufacturing lead time of the final product at all. Therefore, it is important to identify the optimal set of stations to hold WIPI such that the total inventory holding cost is minimized, while the required due date for the final product is met. The authors have presented a model to determine the optimal position and quantity of WIPI for a given simple bill of material (S-BOM, in which any part in the BOM has only one immediate parent node. In this paper, we extend the previous study to the general BOM (G-BOM in which parts in the BOM can have more than one immediate parent and present a new solution procedure using genetic algorithm.

  6. Refined Hopf Link Revisited

    CERN Document Server

    Iqbal, Amer

    2012-01-01

    We establish a relation between the refined Hopf link invariant and the S-matrix of the refined Chern-Simons theory. We show that the refined open string partition function corresponding to the Hopf link, calculated using the refined topological vertex, when expressed in the basis of Macdonald polynomials gives the S-matrix of the refined Chern-Simons theory.

  7. Shoshonitic intrusion magmatism in Pajeu-Paraiba belt: the Bom Jardim complex

    International Nuclear Information System (INIS)

    Guimaraes, I.P. de; Silva Filho, A.F. da

    1990-01-01

    The Bom Jardim complex is a multi phase intrusion emplaced within the basement of the Pajeu-Paraiba belt, in the Borborema province, N.E., Brazil, during the Pan African (Brasiliano) orogeny, 600 Ma ago. The Bom Jardim complex is primarily composed of monzonites and syenites with subordinated granites. The major and trace elements geochemistry has established a shoshonitic affinity for the monzonite-syenite assemblages, whereas the granites are clearly of a high-K calc-alkaline character. The main geochemical trends determined for the complex are the result of fractionation of mainly amphibole, biotite, alkali feldspar ±clinopyroxene within the developing magmas. The enrichment in transition metal elements, LILE and high LILE/HSFE ratios, coupled with an initial Sr sup(87)/Sr sup(86) ratio of 0.70709 is consistent with a subduction related magma source. (author)

  8. District heating

    International Nuclear Information System (INIS)

    1989-03-01

    The papers presented at this meeting dealt with an international comparison of district heating, the Swiss district heating network, political aspects of nuclear district heating, nuclear and non-nuclear sources for district heating. 17 figs., 6 tabs

  9. Climate Trends in Bom Jesus, soybean production region in Piauí

    Directory of Open Access Journals (Sweden)

    Layara Campelo Reis

    2017-09-01

    Full Text Available Climate is still the main responsible for soybean yield variations, exerting a limiting action on these agricultural systems. In the cerrado “savannah” of Bom Jesus, this crop has shown a growth in cultivated areas over the years, however, productivity does not follow the same rhythm, going through oscillation periods. Although cultivation is aggregated to high technology, the crop is highly vulnerable to climatic adversities. Thus, the objective of this study was to analyze possible trends in meteorological variables that could influence soybean yield in the municipality of Bom Jesus (Piauí. Daily meteorological data were used for the variables: precipitation, maximum and minimum temperature and air diurnal thermal amplitude from 1974 to 2014. The statistical Mann-Kendall test was applied in order to analyze variation trend in climatological time series of the variables under study. As regards variability of the agrometeorological elements, a significant negative trend for precipitation in the months of June and October and a significant positive trend in the month of December was observed from the indicated results, which detected changes in the local climate patterns. It was also possible to identify statistically significant positive trends in the maximum temperature, for all the months that are part of the soybean cycle (November - April. The identified results may be used to elaborate planning strategies to choose the best sowing time for soybean crop in the municipality of Bom Jesus (PI, in order to minimize the vulnerability of the crop productive system to climatic risks.

  10. A MINIATURIZAÇÃO DO MUNDO EM “A GUERRA NO BOM FIM”, DE MOACYR SCLIAR

    Directory of Open Access Journals (Sweden)

    Lyslei Nascimento

    2014-09-01

    Full Text Available The novel “A guerra no Bom Fim” by Moacyr Scliar reenacts the devastating effects of the War in the imagination of children in Bom Fim, the Jewish quarter of Porto Alegre. From the point of view of childhood, the space of dream and fantasy, but also of nightmares and bad omens, it is configured as a “small country” that reveals, in their conformation, the miniaturized world and brutalized.

  11. Council Districts

    Data.gov (United States)

    Town of Cary, North Carolina — View the location of the Town of Cary’s four Town Council districts.Please note that one district, District A, is split into two geo-spatial areas. One area is in...

  12. Saber científico e etnoconhecimento: é bom pra quê?

    Directory of Open Access Journals (Sweden)

    Glauberto da Silva Quirino

    2015-06-01

    Full Text Available Análise reflexiva e interpretativa do quadro É bom pra quê? do programa de televisão Fantástico, apresentado pelo médico Drauzio Varella, que foi veiculado em rede nacional entre os meses de agosto e setembro de 2010 em cinco episódios, com duração média de 10 minutos. O objetivo da série era discutir os usos e abusos dos tratamentos médicos feitos com produtos derivados de plantas que não passaram pelo crivo científico dos estudos clínicos, e analisar as perspectivas da fitoterapia medicinal. Na culpabilização pessoal, valorização do medo, desqualificação dos saberes paramédicos e centralidade na figura do médico, ele fundamenta suas bases discursivas, para impor legitimidade aos seus argumentos. Nessa perspectiva, as estratégias discursivas veiculadas na mídia por meio da televisão, e no caso particular do quadro do Fantástico, É bom pra quê?, visam a manutenção de uma ordem médica hegemônica, distante da preconizada neutralidade científica e da ausência de interesses econômicos.

  13. Teaching Cases in Management - Cooperativa Agroindustrial Bom Jesus: Estratégias de Crescimento

    Directory of Open Access Journals (Sweden)

    Claudia Monica Ritossa

    2011-11-01

    Full Text Available The present teaching case study in Management aims to place the student in the role of the decisionmaker at the head of an agricultural cooperative organization that seeks strategic alternatives for growth through access to international markets in order to increase business efficiency, improve the delivery of services to its members and maximize the benefits it offers. The case of Bom Jesus Agroindustrial Cooperative, based mostly on the collection of primary data, illustrates the situation experienced by the organization in 2007 when the board of directors realized the need to rethink their production activities in view of the changes in total sales in previous years. An increase in exports and the diversification of activities emerged as strategic alternatives to achieve the desired goals. Accordingly, the facts that outline the circumstances that the directors of Bom Jesus were experiencing, supplemented by related theories, sustain the analysis and discussions that will enable students to identify and select the most appropriate strategic response to define what, how and where their products can be traded without losing sight of the principles of being a cooperative and the vision of growth of the organization. The case can be applied to the disciplines of Strategy, International Business and Agribusiness Management in undergraduate and post-graduate courses.

  14. Associated factors of malnutrition among African children under five years old, Bom Jesus, Angola

    Directory of Open Access Journals (Sweden)

    Ema Cândida Branco FERNANDES

    Full Text Available ABSTRACT Objective: To identify the determinants of wasting and stunting in children under five years old in the commune of Bom Jesus, Angola Methods: A population-based cross-sectional study was conducted with 742 children in 2010, and nutritional deficits were defined by World Health Organization criteria. Prevalence ratios and associated factors of wasting and stunting were estimated using Poisson regression with robust variance, using a conceptual hierarchical model Results: For both deficits, there were significant differences in the prevalence ratios according to the children's neighborhood and age. Boys and those children living in households whose water supply came from the river or lake, as well those with recent expulsion of parasites and infections were more likely to present stunting. Children of fathers with higher number of children or that which the fathers were not living at home and whose mothers were 25-34 years old were less likely to have wasting Conclusion: It was identified independent variables from different levels of determination of malnutrition, standing out the basic sanitation conditions and family structure as important predictors of the nutritional deficits. The knowledge of the associated factors of malnutrition may contribute for subside public policies in planning interventions to improve the childhood nutrition status in Bom Jesus and communes with similar characteristics in Angola.

  15. Gênero e culturas infantis: os clubinhos da escola e as trocinhas do Bom Retiro Gender and children's culture: school clubinhos and the trocinhas of Bom Retiro

    Directory of Open Access Journals (Sweden)

    Tânia Mara Cruz

    2012-03-01

    Full Text Available Este estudo trata de gênero e culturas infantis, entrecruzando os clubinhos das séries iniciais, analisados em pesquisa feita em uma escola do bairro de Pinheiros, São Paulo, em 2001, e as trocinhas do Bom Retiro, estudadas por Florestan Fernandes em 1942. Na busca de aspectos microestruturais e do efeito dessas interações na construção de diferentes significados de gênero, emergiram questões como: em que medida tais agrupamentos conseguiam estabelecer espaços de autonomia perante o mundo adulto?; elaboravam relações de gênero próprias de uma cultura infantil?; quais eram os pontos centrais sobre os quais se desenrolava a trama das relações de gênero em cada tempo e lugar? A partir da etnografia, foram produzidos 28 registros de campo do recreio de 1ª a 4ª série. Apenas nas 3as e 4as séries assistiu-se a quarenta aulas de cinquenta minutos (de educação artística e educação física, e foram entrevistados 29 meninos e 26 meninas. Ora segregadores ora agregadores, observou-se que os clubinhos (mistos ou de mesmo sexo eram o modo como as crianças geriam suas relações, fosse para permitir grupos mistos sem conflito, fosse para manter o distanciamento entre os sexos de modo pacífico. Este estudo contribui para trazer à tona um pouco das culturas infantis em seu protagonismo relacionado ao gênero e possibilita a caracterização da escola como espaço contraditório, que pode desenvolver ações de suporte às crianças para ampliação de suas experiências.This study deals with gender and children's cultures, crossing the initial series clubinhos, analyzed in a research done at school in the Borough of Pinheiros in São Paulo in 2001 with the trocinhas of Bom Retiro studied by Florestan Fernandes in 1942. In the search for microstructural aspects and for the effect of these interactions in the construction of different meanings of gender, questions emerged such as: to what extent do these groups manage to establish

  16. PERMAINAN BOM ANGKA DALAM KONSEP KELIPATAN PERSEKUTUAN TERKECIL UNTUK ANAK SEKOLAH DASAR

    Directory of Open Access Journals (Sweden)

    Dyah Indah Adrelia

    2015-03-01

    Full Text Available The purpose of this research is that students are able to understand the basic concepts of Least Common Multiple (LCM easy by using traditional games in Palembang, namely Bom Angka. The method used is design research with preliminary design, teaching experiment, and retrospective analysis stage, with the subjects were primary school students in the fourth grade. The results of this study indicate that the use of the traditional game in LCM motivated students to be more interested in learning mathematics, because students can learn and play at the same time. In addition, the pronunciation of numbers in sequence once uttered a bomb in every multiple of the numbers that have been agreed enables students to think quickly while helping students memorizing multiplication automatically, who were eventually able to instill the concept of LCM well.   

  17. Que bom te ver viva: vozes femininas reivindicando uma outra história

    Directory of Open Access Journals (Sweden)

    Kátia da Costa Bezerra

    2014-01-01

    Full Text Available The right to determine the meaning of the military dictatorship in Brazil has been a constant dispute between members of the militant left and the military regime. The language used by the two groups constantly revolves around the mythic images of “heroes”, “victims”, “for the good of the people”. This essay focuses on Que bom te ver viva, by Lúcia Murat, who brings a new perspective to this debate. Taking as a point of departure the testimony of eight ex-political prisoners, the film attempts to answer the question: How did we survive?” The essay discusses how the movie builds frames of memory that go beyond those taken as representative.

  18. District heating

    International Nuclear Information System (INIS)

    2005-01-01

    By request of the Dutch Lower House the Netherlands Court of Audit examined the profitability or loss-making of district heating projects between 2001 and 2003. District heating supplies heat to consumers for heating their houses and providing warm tap water. The heat is supplied via warm water that runs through a network of pipes. In the Netherlands, about 250,000 households use district heating. The request by the Dutch Lower House to conduct research on district heating coheres with the initiative District Heating Bill. The bill aims to legally guarantee the supply and affordability of heat for consumers of district heating. [mk] [nl

  19. The refined topological vertex

    International Nuclear Information System (INIS)

    Iqbal, Amer; Kozcaz, Can; Vafa, Cumrun

    2009-01-01

    We define a refined topological vertex which depends in addition on a parameter, which physically corresponds to extending the self-dual graviphoton field strength to a more general configuration. Using this refined topological vertex we compute, using geometric engineering, a two-parameter (equivariant) instanton expansion of gauge theories which reproduce the results of Nekrasov. The refined vertex is also expected to be related to Khovanov knot invariants.

  20. Creating value in refining

    International Nuclear Information System (INIS)

    Cobb, C.B.

    2001-01-01

    This article focuses on recent developments in the US refining industry and presents a model for improving the performance of refineries based on the analysis of the refining industry by Cap Gemini Ernst and Young. The identification of refineries in risk of failing, the construction of pipelines for refinery products from Gulf State refineries, mergers and acquisitions, and poor financial performance are discussed. Current challenges concerning the stagnant demand for refinery products, environmental regulations, and shareholder value are highlighted. The structure of the industry, the creation of value in refining, and the search for business models are examined. The top 25 US companies and US refining business groups are listed

  1. Relational Demonic Fuzzy Refinement

    Directory of Open Access Journals (Sweden)

    Fairouz Tchier

    2014-01-01

    Full Text Available We use relational algebra to define a refinement fuzzy order called demonic fuzzy refinement and also the associated fuzzy operators which are fuzzy demonic join (⊔fuz, fuzzy demonic meet (⊓fuz, and fuzzy demonic composition (□fuz. Our definitions and properties are illustrated by some examples using mathematica software (fuzzy logic.

  2. Replication, refinement & reachability

    DEFF Research Database (Denmark)

    Debois, Søren; Hildebrandt, Thomas T.; Slaats, Tijs

    2018-01-01

    We explore the complexity of reachability and run-time refinement under safety and liveness constraints in event-based process models. Our study is framed in the DCR? process language, which supports modular specification through a compositional operational semantics. DCR? encompasses the “Dynamic...... Condition Response (DCR) graphs” declarative process model for analysis, execution and safe run-time refinement of process-aware information systems; including replication of sub-processes. We prove that event-reachability and refinement are np-hard for DCR? processes without replication...

  3. BOM DIA SILÊNCIO: A AÇÃO DA INFÂNCIA NO CINEMA

    Directory of Open Access Journals (Sweden)

    Ângela Fronckowiak

    2012-07-01

    Full Text Available As crianças, “entre elas”, o que nos dizem? Como as escutamos? Como as vemos? Como as lemos? No ensaio, persigo a ideia de investigar a ação das crianças, sensorialmente projetadas no filme Bom dia (Ohayo - 1959, de Yasujiro Ozu (1903-1963, em diálogo com a sociologia da infância, a pedagogia poética e a fenomenologia da imaginação. A intenção é a de priorizar, na percepção das infâncias, o estudo das relações que as crianças estabelecem entre si no filme assistido. A imaginação, portanto, opera aqui um papel fundamental, pois pensar, na perspectiva de construção desse texto, supera reproduzir ou analisar um mundo que se dá a ver, ou se oferece. Ao optar por essa via de acesso – não melhor, mas outra – busco escutar-ver-ler-sentir a obra cinematográfica enquanto criação de uma imagem nova e conceber, a partir dela, uma escrita criativa, que se institui no estreito vínculo com a minha imaginação material no exercício de devanear escrevendo.

  4. Romeiros e turistas no santuário de Bom Jesus da Lapa

    Directory of Open Access Journals (Sweden)

    Steil Carlos Alberto

    2003-01-01

    Full Text Available O presente trabalho aborda a relação entre peregrinação e turismo, tomando como referência o material de campo coletado no santuário de Bom Jesus da Lapa, Brasil. Turismo e peregrinação são tomados como categorias que condensam duas estruturas de significados, ou "tipos ideais", no sentido weberiano, do que seria a verdadeira peregrinação ou o turismo genuíno. Nossa hipótese é que, enquanto a peregrinação, em seu sentido idealizado, remete ao modelo emocional da communitas (Victor Turner; Edith Turner, o turismo conduz ao modelo da societas (Norbert Elias, marcada pelo olhar distanciado e de estranhamento. Tomamos, assim, a romaria como um discurso metassocial que comporta duas formas de sociabilidade, que operam a partir de lógicas opostas: a da communitas, para a qual a verdadeira sociedade seria expressa pelo ideal fraterno da comunhão, e a da societas, onde a regra básica de funcionamento da sociedade estaria na distinção.

  5. Sustainability of cassava agreoecosystems: first cycle of assessment in Bom Jesus-RN

    Directory of Open Access Journals (Sweden)

    Valdenildo Pedro da Silva

    2014-09-01

    Full Text Available This article presents the sustainability assessment of cassava-producing family agroecosystems in Bom Jesus municipality, Rio Grande do Norte, Brazil, from the perspective of the Framework for Assessing the Sustainability of Natural Resource Management Systems (Mesmis, for its acronym in Spanish. With the measurement of 18 simple strategic indicators of sustainability between cassava-producing agroecosystems, the differences between the sustainability of cassa- va-producing agroecosystems were highlighted, with regard to economic, social and environmental dimensions, comparing the conventional system (which pro- duces cassava in monoculture for trade, using agrochemicals with the alternative (which performs polyculture preserving natural resources and uses agroecolo- gical techniques. Based on the theoretical and methodological support, it was concluded that the cassava-producing alternative agroecossystem was more sus- tainable than the conventional, for the first presented a desired situation of sus- tainability, resulting from the diversity of agriculture and agroecological principles, whilst the second prioritized raising productivity or economic growth, neglecting sustainability aspects of environmental and social dimensions. 

  6. POPULATING A LIBRARY OF REUSABLE H-BOMS: ASSESSMENT OF A FEASIBLE IMAGE BASED MODELING WORKFLOW

    Directory of Open Access Journals (Sweden)

    C. Santagati

    2017-08-01

    Full Text Available The paper shows the intermediate results of a research activity aimed at populating a library of reusable Historical Building Object Models (H-BOMs by testing a full digital workflow that takes advantages from using Structure from Motion (SfM models and is centered on the geometrical/stylistic/materic analysis of the architectural element (portal, window, altar. The aim is to find common (invariant and uncommon (variant features in terms of identification of architectural parts and their relationships, geometrical rules, dimensions and proportions, construction materials and measure units, in order to model archetypal shapes from which it is possible to derive all the style variations. At this regard, a set of 14th - 16th century gothic portals of the catalan-aragonese architecture in Etnean area of Eastern Sicily has been studied and used to assess the feasibility of the identified workflow. This approach tries to answer the increasingly demand for guidelines and standards in the field of Cultural Heritage Conservation to create and manage semantic-aware 3D models able to include all the information (both geometrical and alphanumerical ones concerning historical buildings and able to be reused in several projects.

  7. Populating a Library of Reusable H-Boms Assessment of a Feasible Image Based Modeling Workflow

    Science.gov (United States)

    Santagati, C.; Lo Turco, M.; D'Agostino, G.

    2017-08-01

    The paper shows the intermediate results of a research activity aimed at populating a library of reusable Historical Building Object Models (H-BOMs) by testing a full digital workflow that takes advantages from using Structure from Motion (SfM) models and is centered on the geometrical/stylistic/materic analysis of the architectural element (portal, window, altar). The aim is to find common (invariant) and uncommon (variant) features in terms of identification of architectural parts and their relationships, geometrical rules, dimensions and proportions, construction materials and measure units, in order to model archetypal shapes from which it is possible to derive all the style variations. At this regard, a set of 14th - 16th century gothic portals of the catalan-aragonese architecture in Etnean area of Eastern Sicily has been studied and used to assess the feasibility of the identified workflow. This approach tries to answer the increasingly demand for guidelines and standards in the field of Cultural Heritage Conservation to create and manage semantic-aware 3D models able to include all the information (both geometrical and alphanumerical ones) concerning historical buildings and able to be reused in several projects.

  8. Refining population health comparisons

    DEFF Research Database (Denmark)

    Hussain, M. Azhar; Jørgensen, Mette Møller; Østerdal, Lars Peter Raahave

    2016-01-01

    How to determine if a population group has better overall (multidimensional) health status than another is a central question in the health and social sciences. We apply a multidimensional first order dominance concept that does not rely on assumptions about the relative importance of each...... dimension. In particular, we show how one can explore the “depth” of dominance relations by gradually refining the health dimensions to see which dominance relations persist. We analyze a Danish health survey with many health indicators. These are initially collapsed into a single composite health dimension...... and then refined to four, seven, and ten health dimensions, each representing an (increasingly refined) area of health. Overall we find that younger age groups dominate older age groups in up to four dimensions, but no dominance relations are present with a more refined view of health. Comparing education groups...

  9. Relational Demonic Fuzzy Refinement

    OpenAIRE

    Tchier, Fairouz

    2014-01-01

    We use relational algebra to define a refinement fuzzy order called demonic fuzzy refinement and also the associated fuzzy operators which are fuzzy demonic join $({\\bigsqcup }_{\\mathrm{\\text{f}}\\mathrm{\\text{u}}\\mathrm{\\text{z}}})$ , fuzzy demonic meet $({\\sqcap }_{\\mathrm{\\text{f}}\\mathrm{\\text{u}}\\mathrm{\\text{z}}})$ , and fuzzy demonic composition $({\\square }_{\\mathrm{\\text{f}}\\mathrm{\\text{u}}\\mathrm{\\text{z}}})$ . Our definitions and properties are illustrated by some examples using ma...

  10. Some Properties of Refinement

    OpenAIRE

    Benjes, Friederike

    1996-01-01

    Two problems on action refinement are considered: First we treat the problem that there may exist configurations in the product ${\\cal E}_1~\\|_A~{\\cal E}_2$ of event structures that do not map to configurations of the individual event structures under projection. [Sch91] and [CZ89] showed that languages using only the operators $+, ;, ~\\|_A$ do not create event structures of that type. We show the same for languages extended with a refinement operator. In the second part the connection betwee...

  11. CaK2(AsO3OH)(H2O)2 cell length a | forthcoming | boms | Volumes ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; boms; forthcoming; CaK2(AsO3OH)(H2O)2 cell length a. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th ...

  12. Peli, Luci, Bom... transgresión sexual y cultura popular

    Directory of Open Access Journals (Sweden)

    María Dolores Arroyo Fdez.

    2011-05-01

    Full Text Available El presente estudio se asienta en la narrativa de la película de Pedro Almodóvar Pepi, Luci, Bom y otras chicas del montón, estrenada en 1980, en plena transición a la democracia en España. Se analiza el film considerando sus componentes audiovisuales  como escenario a  los específicos de identidad y comportamiento sexual.  Se contempla su rodaje, en las calles de Madrid, y la construcción de sus diálogos e imágenes, que beben directamente de las fuentes de la cultura de masas  (fotonovelas, viñetas de cómic, publicidad, música y el lenguaje de la calle, en contraste con las creaciones de la alta cultura.  Precisamente, en esta película han participado varios artistas plásticos y dibujantes emergentes entonces: Ceesepe y el grupo Costus.  Al mismo nivel transgresor se presentan, de forma rebelde y escatológica, los comportamientos e identidades sexuales de sus protagonistas.  Esta cinta supo encauzar toda una serie de reivindicaciones a favor de la libertad sexual y la eliminación de tabúes,  protagonizada por parte de la juventud de la época; pero no deja de profundizar en los sentimientos como el amor y el desamor, la amistad y la soledad.   

  13. Refining and petrochemicals

    International Nuclear Information System (INIS)

    Constancio, Silva

    2006-01-01

    In 2004, refining margins showed a clear improvement that persisted throughout the first three quarters of 2005. This enabled oil companies to post significantly higher earnings for their refining activity in 2004 compared to 2003, with the results of the first half of 2005 confirming this trend. As for petrochemicals, despite a steady rise in the naphtha price, higher cash margins enabled a turnaround in 2004 as well as a clear improvement in oil company financial performance that should continue in 2005, judging by the net income figures reported for the first half-year. Despite this favorable business environment, capital expenditure in refining and petrochemicals remained at a low level, especially investment in new capacity, but a number of projects are being planned for the next five years. (author)

  14. Indian refining industry

    International Nuclear Information System (INIS)

    Singh, I.J.

    2002-01-01

    The author discusses the history of the Indian refining industry and ongoing developments under the headings: the present state; refinery configuration; Indian capabilities for refinery projects; and reforms in the refining industry. Tables lists India's petroleum refineries giving location and capacity; new refinery projects together with location and capacity; and expansion projects of Indian petroleum refineries. The Indian refinery industry has undergone substantial expansion as well as technological changes over the past years. There has been progressive technology upgrading, energy efficiency, better environmental control and improved capacity utilisation. Major reform processes have been set in motion by the government of India: converting the refining industry from a centrally controlled public sector dominated industry to a delicensed regime in a competitive market economy with the introduction of a liberal exploration policy; dismantling the administered price mechanism; and a 25 year hydrocarbon vision. (UK)

  15. Refining margins: recent trends

    International Nuclear Information System (INIS)

    Baudoin, C.; Favennec, J.P.

    1999-01-01

    Despite a business environment that was globally mediocre due primarily to the Asian crisis and to a mild winter in the northern hemisphere, the signs of improvement noted in the refining activity in 1996 were borne out in 1997. But the situation is not yet satisfactory in this sector: the low return on invested capital and the financing of environmental protection expenditure are giving cause for concern. In 1998, the drop in crude oil prices and the concomitant fall in petroleum product prices was ultimately rather favorable to margins. Two elements tended to put a damper on this relative optimism. First of all, margins continue to be extremely volatile and, secondly, the worsening of the economic and financial crisis observed during the summer made for a sharp decline in margins in all geographic regions, especially Asia. Since the beginning of 1999, refining margins are weak and utilization rates of refining capacities have decreased. (authors)

  16. Refining and petrochemicals

    Energy Technology Data Exchange (ETDEWEB)

    Constancio, Silva

    2006-07-01

    In 2004, refining margins showed a clear improvement that persisted throughout the first three quarters of 2005. This enabled oil companies to post significantly higher earnings for their refining activity in 2004 compared to 2003, with the results of the first half of 2005 confirming this trend. As for petrochemicals, despite a steady rise in the naphtha price, higher cash margins enabled a turnaround in 2004 as well as a clear improvement in oil company financial performance that should continue in 2005, judging by the net income figures reported for the first half-year. Despite this favorable business environment, capital expenditure in refining and petrochemicals remained at a low level, especially investment in new capacity, but a number of projects are being planned for the next five years. (author)

  17. Refining - Panorama 2008

    International Nuclear Information System (INIS)

    2008-01-01

    Investment rallied in 2007, and many distillation and conversion projects likely to reach the industrial stage were announced. With economic growth sustained in 2006 and still pronounced in 2007, oil demand remained strong - especially in emerging countries - and refining margins stayed high. Despite these favorable business conditions, tensions persisted in the refining sector, which has fallen far behind in terms of investing in refinery capacity. It will take renewed efforts over a long period to catch up. Looking at recent events that have affected the economy in many countries (e.g. the sub-prime crisis), prudence remains advisable

  18. Using OpenRefine

    CERN Document Server

    Verborgh, Ruben

    2013-01-01

    The book is styled on a Cookbook, containing recipes - combined with free datasets - which will turn readers into proficient OpenRefine users in the fastest possible way.This book is targeted at anyone who works on or handles a large amount of data. No prior knowledge of OpenRefine is required, as we start from the very beginning and gradually reveal more advanced features. You don't even need your own dataset, as we provide example data to try out the book's recipes.

  19. Panorama 2012 - Refining 2030

    International Nuclear Information System (INIS)

    Marion, Pierre; Saint-Antonin, Valerie

    2011-11-01

    The major uncertainty characterizing the global energy landscape impacts particularly on transport, which remains the virtually-exclusive bastion of the oil industry. The industry must therefore respond to increasing demand for mobility against a background marked by the emergence of alternatives to oil-based fuels and the need to reduce emissions of pollutants and greenhouse gases (GHG). It is in this context that the 'Refining 2030' study conducted by IFP Energies Nouvelles (IFPEN) forecasts what the global supply and demand balance for oil products could be, and highlights the type and geographical location of the refinery investment required. Our study shows that the bulk of the refining investment will be concentrated in the emerging countries (mainly those in Asia), whilst the areas historically strong in refining (Europe and North America) face reductions in capacity. In this context, the drastic reduction in the sulphur specification of bunker oil emerges as a structural issue for European refining, in the same way as increasingly restrictive regulation of refinery CO 2 emissions (quotas/taxation) and the persistent imbalance between gasoline and diesel fuels. (authors)

  20. Forestry Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — The Forestry Districts layer is part of a dataset that contains administrative boundaries for Vermont's Agency of Natural Resources. This is a layer file which...

  1. Warden Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — This dataset is a representation overlay of warden (areas of responsibility). The Vermont Warden Districts layer is part of a dataset that contains administrative...

  2. Wildlife Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — The Wildlife Districts layer is part of a larger dataset contains administrative boundaries for Vermont's Agency of Natural Resources. The dataset includes feature...

  3. Wastewater Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — The Wastewater districts layer is part of a larger dataset that contains administrative boundaries for Vermont's Agency of Natural Resources. The dataset includes...

  4. Park Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — The Parks Districts layer is part of a dataset contains administrative boundaries for Vermont's Agency of Natural Resources. The dataset includes feature classes for...

  5. Fisheries Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — The Fisheries districts data layer is part of a larger dataset that contains administrative boundaries for Vermont's Agency of Natural Resources. The dataset...

  6. Refinement by interface instantiation

    DEFF Research Database (Denmark)

    Hallerstede, Stefan; Hoang, Thai Son

    2012-01-01

    Decomposition is a technique to separate the design of a complex system into smaller sub-models, which improves scalability and team development. In the shared-variable decomposition approach for Event-B sub-models share external variables and communicate through external events which cannot...... be easily refined. Our first contribution hence is a proposal for a new construct called interface that encapsulates the external variables, along with a mechanism for interface instantiation. Using the new construct and mechanism, external variables can be refined consistently. Our second contribution...... is an approach for verifying the correctness of Event-B extensions using the supporting Rodin tool. We illustrate our approach by proving the correctness of interface instantiation....

  7. US refining reviewed

    International Nuclear Information System (INIS)

    Yamaguchi, N.D.

    1998-01-01

    The paper reviews the history, present position and future prospects of the petroleum industry in the USA. The main focus is on supply and demand, the high quality of the products, refinery capacity and product trade balances. Diagrams show historical trends in output, product demand, demand for transport fuels and oil, refinery capacity, refinery closures, and imports and exports. Some particularly salient points brought out were (i) production of US crude shows a marked downward trend but imports of crude will continue to increase, (ii) product demand will continue to grow even though the levels are already high, (iii) the demand is dominated by those products that typically yield the highest income for the refiner, (i.e. high quality transport fuels for environmental compliance), (iv) refinery capacity has decreased since 1980 and (v) refining will continue to have financial problems but will still be profitable. (UK)

  8. Issues in adaptive mesh refinement

    Energy Technology Data Exchange (ETDEWEB)

    Dai, William Wenlong [Los Alamos National Laboratory

    2009-01-01

    In this paper, we present an approach for a patch-based adaptive mesh refinement (AMR) for multi-physics simulations. The approach consists of clustering, symmetry preserving, mesh continuity, flux correction, communications, and management of patches. Among the special features of this patch-based AMR are symmetry preserving, efficiency of refinement, special implementation offlux correction, and patch management in parallel computing environments. Here, higher efficiency of refinement means less unnecessarily refined cells for a given set of cells to be refined. To demonstrate the capability of the AMR framework, hydrodynamics simulations with many levels of refinement are shown in both two- and three-dimensions.

  9. REFINING FLUORINATED COMPOUNDS

    Science.gov (United States)

    Linch, A.L.

    1963-01-01

    This invention relates to the method of refining a liquid perfluorinated hydrocarbon oil containing fluorocarbons from 12 to 28 carbon atoms per molecule by distilling between 150 deg C and 300 deg C at 10 mm Hg absolute pressure. The perfluorinated oil is washed with a chlorinated lower aliphatic hydrocarbon, which mairtains a separate liquid phase when mixed with the oil. Impurities detrimental to the stability of the oil are extracted by the chlorinated lower aliphatic hydrocarbon. (AEC)

  10. Future of French refining

    International Nuclear Information System (INIS)

    Calvet, B.

    1993-01-01

    Over recent years, the refining industry has had to grapple with a growing burden of environmental and safety regulations concerning not only its plants and other facilities, but also its end products. At the same time, it has had to bear the effects of the reduction of the special status that used to apply to petroleum, and the consequences of economic freedom, to which we should add, as specifically concerns the French market, the impact of energy policy and the pro-nuclear option. The result is a drop in heavy fuel oil from 36 million tonnes per year in 1973 to 6.3 million in 1992, and in home-heating fuel from 37 to 18 million per year. This fast-moving market is highly competitive. The French market in particular is wide open to imports, but the refining companies are still heavy exporters for those products with high added-value, like lubricants, jet fuel, and lead-free gasolines. The competition has led the refining companies to commit themselves to quality, and to publicize their efforts in this direction. This is why the long-term perspectives for petroleum fuels are still wide open. This is supported by the probable expectation that the goal of economic efficiency is likely to soften the effects of the energy policy, which penalizes petroleum products, in that they have now become competitive again. In the European context, with the challenge of environmental protection and the decline in heavy fuel outlets, French refining has to keep on improving the quality of its products and plants, which means major investments. The industry absolutely must return to a more normal level of profitability, in order to sustain this financial effort, and generate the prosperity of its high-performance plants and equipment. 1 fig., 5 tabs

  11. Panorama 2009 - refining

    International Nuclear Information System (INIS)

    2008-01-01

    For oil companies to invest in new refining and conversion capacity, favorable conditions over time are required. In other words, refining margins must remain high and demand sustained over a long period. That was the situation prevailing before the onset of the financial crisis in the second half of 2008. The economic conjuncture has taken a substantial turn for the worse since then and the forecasts for 2009 do not look bright. Oil demand is expected to decrease in the OECD countries and to grow much more slowly in the emerging countries. It is anticipated that refining margins will fall in 2009 - in 2008, they slipped significantly in the United States - as a result of increasingly sluggish demand, especially for light products. The next few months will probably be unfavorable to investment. In addition to a gloomy business outlook, there may also be a problem of access to sources of financing. As for investment projects, a mainstream trend has emerged in the last few years: a shift away from the regions that have historically been most active (the OECD countries) towards certain emerging countries, mostly in Asia or the Middle East. The new conjuncture will probably not change this trend

  12. Towards automated crystallographic structure refinement with phenix.refine

    Energy Technology Data Exchange (ETDEWEB)

    Afonine, Pavel V., E-mail: pafonine@lbl.gov; Grosse-Kunstleve, Ralf W.; Echols, Nathaniel; Headd, Jeffrey J.; Moriarty, Nigel W. [Lawrence Berkeley National Laboratory, One Cyclotron Road, MS64R0121, Berkeley, CA 94720 (United States); Mustyakimov, Marat; Terwilliger, Thomas C. [Los Alamos National Laboratory, M888, Los Alamos, NM 87545 (United States); Urzhumtsev, Alexandre [CNRS–INSERM–UdS, 1 Rue Laurent Fries, BP 10142, 67404 Illkirch (France); Université Henri Poincaré, Nancy 1, BP 239, 54506 Vandoeuvre-lès-Nancy (France); Zwart, Peter H. [Lawrence Berkeley National Laboratory, One Cyclotron Road, MS64R0121, Berkeley, CA 94720 (United States); Adams, Paul D. [Lawrence Berkeley National Laboratory, One Cyclotron Road, MS64R0121, Berkeley, CA 94720 (United States); University of California Berkeley, Berkeley, CA 94720 (United States)

    2012-04-01

    phenix.refine is a program within the PHENIX package that supports crystallographic structure refinement against experimental data with a wide range of upper resolution limits using a large repertoire of model parameterizations. This paper presents an overview of the major phenix.refine features, with extensive literature references for readers interested in more detailed discussions of the methods. phenix.refine is a program within the PHENIX package that supports crystallographic structure refinement against experimental data with a wide range of upper resolution limits using a large repertoire of model parameterizations. It has several automation features and is also highly flexible. Several hundred parameters enable extensive customizations for complex use cases. Multiple user-defined refinement strategies can be applied to specific parts of the model in a single refinement run. An intuitive graphical user interface is available to guide novice users and to assist advanced users in managing refinement projects. X-ray or neutron diffraction data can be used separately or jointly in refinement. phenix.refine is tightly integrated into the PHENIX suite, where it serves as a critical component in automated model building, final structure refinement, structure validation and deposition to the wwPDB. This paper presents an overview of the major phenix.refine features, with extensive literature references for readers interested in more detailed discussions of the methods.

  13. PERCEPÇÕES SOBRE A PROBLEMÁTICA SOCIOAMBIENTAL DA CIDADE DE BOM JESUS - RN

    Directory of Open Access Journals (Sweden)

    Diego Salomão C. de O. Salvador

    2007-12-01

    Full Text Available As cidades têm conquistado um lugar sem precedentes na história, transformando-se na expressão máxima da sociedade contemporânea. Atualmente, nas cidades concentram-se parcelas significativas da população e imensas contradições, que fazem com que elas sejam marcadas também com o que as sociedades têm de melhor e de pior. Além da riqueza, do acesso privilegiado à informação, dos fluxos econômicos, dentre outros, observam-se também as mais intensas manifestações de poluição, violência, pobreza e exclusão, apontando para a gravidade das questões de ordem social que imperam nesse espaço. Além do mais, não se pode negligenciar o fato de que as mais importantes questões socioambientais ocorrem nas cidades, pois aí estão as maiores concentrações populacionais e atividades econômicas com importantes desdobramentos para a vida urbana. Desse modo, a discussão socioambiental contemporânea deve priorizar essa ordem, a da cidade. Com isso, faz-se, não somente necessário, como também urgente, a busca de novos olhares sobre a problemática socioambiental urbana, bem como a socialização de práticas eficazes referentes a essa problemática. Assim, o objetivo deste trabalho é desvendar as percepções, os desafios e as possibilidades de superação dos problemas socioambientais da pequena cidade de Bom Jesus, situada no interior do Estado do Rio Grande do Norte. Este estudo foi desenvolvido por meio de uma pesquisa qualitativa, utilizando-se alguns procedimentos, como a pesquisa bibliográfica e a empírica, a qual foi realizada com alguns segmentos da sociedade local. Os resultados e conclusões obtidos até o momento, a partir das percepções dos moradores locais, apontam para problemas socioambientais de grandes dimensões, como os que foram mencionados acima, mas também para outros próprios da realidade local. O estudo também atenta para algumas reflexões que valorizam a construção de uma sociedade sustent

  14. Hirshfeld atom refinement.

    Science.gov (United States)

    Capelli, Silvia C; Bürgi, Hans-Beat; Dittrich, Birger; Grabowsky, Simon; Jayatilaka, Dylan

    2014-09-01

    Hirshfeld atom refinement (HAR) is a method which determines structural parameters from single-crystal X-ray diffraction data by using an aspherical atom partitioning of tailor-made ab initio quantum mechanical molecular electron densities without any further approximation. Here the original HAR method is extended by implementing an iterative procedure of successive cycles of electron density calculations, Hirshfeld atom scattering factor calculations and structural least-squares refinements, repeated until convergence. The importance of this iterative procedure is illustrated via the example of crystalline ammonia. The new HAR method is then applied to X-ray diffraction data of the dipeptide Gly-l-Ala measured at 12, 50, 100, 150, 220 and 295 K, using Hartree-Fock and BLYP density functional theory electron densities and three different basis sets. All positions and anisotropic displacement parameters (ADPs) are freely refined without constraints or restraints - even those for hydrogen atoms. The results are systematically compared with those from neutron diffraction experiments at the temperatures 12, 50, 150 and 295 K. Although non-hydrogen-atom ADPs differ by up to three combined standard uncertainties (csu's), all other structural parameters agree within less than 2 csu's. Using our best calculations (BLYP/cc-pVTZ, recommended for organic molecules), the accuracy of determining bond lengths involving hydrogen atoms from HAR is better than 0.009 Å for temperatures of 150 K or below; for hydrogen-atom ADPs it is better than 0.006 Å(2) as judged from the mean absolute X-ray minus neutron differences. These results are among the best ever obtained. Remarkably, the precision of determining bond lengths and ADPs for the hydrogen atoms from the HAR procedure is comparable with that from the neutron measurements - an outcome which is obtained with a routinely achievable resolution of the X-ray data of 0.65 Å.

  15. Tight Focus on Instruction Wins Texas District Prize

    Science.gov (United States)

    Maxwell, Lesli A.

    2009-01-01

    It took a while for four-time finalist Aldine, Texas, to win the Broad Prize for Urban Education. But it took even longer to craft the system that ultimately put the district over the top. Educators in Aldine district have been working for more than a decade to refine their "managed instruction" system. Reviewers examined how the school…

  16. North Dakota Refining Capacity Study

    Energy Technology Data Exchange (ETDEWEB)

    Dennis Hill; Kurt Swenson; Carl Tuura; Jim Simon; Robert Vermette; Gilberto Marcha; Steve Kelly; David Wells; Ed Palmer; Kuo Yu; Tram Nguyen; Juliam Migliavacca

    2011-01-05

    According to a 2008 report issued by the United States Geological Survey, North Dakota and Montana have an estimated 3.0 to 4.3 billion barrels of undiscovered, technically recoverable oil in an area known as the Bakken Formation. With the size and remoteness of the discovery, the question became 'can a business case be made for increasing refining capacity in North Dakota?' And, if so what is the impact to existing players in the region. To answer the question, a study committee comprised of leaders in the region's petroleum industry were brought together to define the scope of the study, hire a consulting firm and oversee the study. The study committee met frequently to provide input on the findings and modify the course of the study, as needed. The study concluded that the Petroleum Area Defense District II (PADD II) has an oversupply of gasoline. With that in mind, a niche market, naphtha, was identified. Naphtha is used as a diluent used for pipelining the bitumen (heavy crude) from Canada to crude markets. The study predicted there will continue to be an increase in the demand for naphtha through 2030. The study estimated the optimal configuration for the refinery at 34,000 barrels per day (BPD) producing 15,000 BPD of naphtha and a 52 percent refinery charge for jet and diesel yield. The financial modeling assumed the sponsor of a refinery would invest its own capital to pay for construction costs. With this assumption, the internal rate of return is 9.2 percent which is not sufficient to attract traditional investment given the risk factor of the project. With that in mind, those interested in pursuing this niche market will need to identify incentives to improve the rate of return.

  17. Refining and petrochemicals

    International Nuclear Information System (INIS)

    Benazzi, E.

    2003-01-01

    Down sharply in 2002, refining margins showed a clear improvement in the first half-year of 2003. As a result, the earnings reported by oil companies for financial year 2002 were significantly lower than in 2001, but the prospects are brighter for 2003. In the petrochemicals sector, slow demand and higher feedstock prices eroded margins in 2002, especially in Europe and the United States. The financial results for the first part of 2003 seem to indicate that sector profitability will not improve before 2004. (author)

  18. Refining and petrochemicals

    International Nuclear Information System (INIS)

    Benazzi, E.; Alario, F.

    2004-01-01

    In 2003, refining margins showed a clear improvement that continued throughout the first three quarters of 2004. Oil companies posted significantly higher earnings in 2003 compared to 2002, with the results of first quarter 2004 confirming this trend. Due to higher feedstock prices, the implementation of new capacity and more intense competition, the petrochemicals industry was not able to boost margins in 2003. In such difficult business conditions, aggravated by soaring crude prices, the petrochemicals industry is not likely to see any improvement in profitability before the second half of 2004. (author)

  19. Macromolecular crystallographic estructure refinement

    Directory of Open Access Journals (Sweden)

    Afonine, Pavel V.

    2015-04-01

    Full Text Available Model refinement is a key step in crystallographic structure determination that ensures final atomic structure of macromolecule represents measured diffraction data as good as possible. Several decades have been put into developing methods and computational tools to streamline this step. In this manuscript we provide a brief overview of major milestones of crystallographic computing and methods development pertinent to structure refinement.El refinamiento es un paso clave en el proceso de determinación de una estructura cristalográfica al garantizar que la estructura atómica de la macromolécula final represente de la mejor manera posible los datos de difracción. Han hecho falta varias décadas para poder desarrollar nuevos métodos y herramientas computacionales dirigidas a dinamizar esta etapa. En este artículo ofrecemos un breve resumen de los principales hitos en la computación cristalográfica y de los nuevos métodos relevantes para el refinamiento de estructuras.

  20. Petroleum refining industry in China

    International Nuclear Information System (INIS)

    Walls, W.D.

    2010-01-01

    The oil refining industry in China has faced rapid growth in oil imports of increasingly sour grades of crude with which to satisfy growing domestic demand for a slate of lighter and cleaner finished products sold at subsidized prices. At the same time, the world petroleum refining industry has been moving from one that serves primarily local and regional markets to one that serves global markets for finished products, as world refining capacity utilization has increased. Globally, refined product markets are likely to experience continued globalization until refining investments significantly expand capacity in key demand regions. We survey the oil refining industry in China in the context of the world market for heterogeneous crude oils and growing world trade in refined petroleum products.

  1. Refines Efficiency Improvement

    Energy Technology Data Exchange (ETDEWEB)

    WRI

    2002-05-15

    Refinery processes that convert heavy oils to lighter distillate fuels require heating for distillation, hydrogen addition or carbon rejection (coking). Efficiency is limited by the formation of insoluble carbon-rich coke deposits. Heat exchangers and other refinery units must be shut down for mechanical coke removal, resulting in a significant loss of output and revenue. When a residuum is heated above the temperature at which pyrolysis occurs (340 C, 650 F), there is typically an induction period before coke formation begins (Magaril and Aksenova 1968, Wiehe 1993). To avoid fouling, refiners often stop heating a residuum before coke formation begins, using arbitrary criteria. In many cases, this heating is stopped sooner than need be, resulting in less than maximum product yield. Western Research Institute (WRI) has developed innovative Coking Index concepts (patent pending) which can be used for process control by refiners to heat residua to the threshold, but not beyond the point at which coke formation begins when petroleum residua materials are heated at pyrolysis temperatures (Schabron et al. 2001). The development of this universal predictor solves a long standing problem in petroleum refining. These Coking Indexes have great potential value in improving the efficiency of distillation processes. The Coking Indexes were found to apply to residua in a universal manner, and the theoretical basis for the indexes has been established (Schabron et al. 2001a, 2001b, 2001c). For the first time, a few simple measurements indicates how close undesired coke formation is on the coke formation induction time line. The Coking Indexes can lead to new process controls that can improve refinery distillation efficiency by several percentage points. Petroleum residua consist of an ordered continuum of solvated polar materials usually referred to as asphaltenes dispersed in a lower polarity solvent phase held together by intermediate polarity materials usually referred to as

  2. Refining Radchem Detectors: Iridium

    Science.gov (United States)

    Arnold, C. W.; Bredeweg, T. A.; Vieira, D. J.; Bond, E. M.; Jandel, M.; Rusev, G.; Moody, W. A.; Ullmann, J. L.; Couture, A. J.; Mosby, S.; O'Donnell, J. M.; Haight, R. C.

    2013-10-01

    Accurate determination of neutron fluence is an important diagnostic of nuclear device performance, whether the device is a commercial reactor, a critical assembly or an explosive device. One important method for neutron fluence determination, generally referred to as dosimetry, is based on exploiting various threshold reactions of elements such as iridium. It is possible to infer details about the integrated neutron energy spectrum to which the dosimetry sample or ``radiochemical detector'' was exposed by measuring specific activation products post-irradiation. The ability of radchem detectors like iridium to give accurate neutron fluence measurements is limited by the precision of the cross-sections in the production/destruction network (189Ir-193Ir). The Detector for Advanced Neutron Capture Experiments (DANCE) located at LANSCE is ideal for refining neutron capture cross sections of iridium isotopes. Recent results from a measurement of neutron capture on 193-Ir are promising. Plans to measure other iridium isotopes are underway.

  3. Digital Invasions: from Point Clouds to Historical Building Object Modeling H-Bom of a Unesco Whl Site

    Science.gov (United States)

    Chiabrando, F.; Lo Turco, M.; Santagati, C.

    2017-02-01

    The paper here presented shows the outcomes of a research/didactic activity carried out within a workshop titled "Digital Invasions. From point cloud to Heritage Building Information Modeling" held at Politecnico di Torino (29th September-5th October 2016). The term digital invasions refers to an Italian bottom up project born in the 2013 with the aim of promoting innovative digital ways for the enhancement of Cultural Heritage by the co-creation of cultural contents and its sharing through social media platforms. At this regard, we have worked with students of Architectural Master of Science degree, training them with a multidisciplinary teaching team (Architectural Representation, History of Architecture, Restoration, Digital Communication and Geomatics). The aim was also to test if our students could be involved in a sort of niche crowdsourcing for the creation of a library of H-BOMS (Historical-Building Object Modeling) of architectural elements.

  4. Considerações sobre a Relação de Gênero em Bom-Crioulo

    Directory of Open Access Journals (Sweden)

    Luiz Morando

    2002-12-01

    Full Text Available Este trabalho busca observar as relações de gênero e poder entre as personagens da narrativa Bom-crioulo, de Adolfo Caminha. Tais referências levarão em conta o projeto médicohigiênico oitocentista e sua interface com a poética naturalista, tomando como eixo de discussão a forma como a homossexualidade é representada no texto. Para tentar examinar essa proposta, verificaremos os elementos constitutivos da formação de uma trindade sexual, de caráter familiar e zoomórfico, presente na criação dos personagens protagonistas e no conflito representado.

  5. Towards automated crystallographic structure refinement with phenix.refine

    Science.gov (United States)

    Afonine, Pavel V.; Grosse-Kunstleve, Ralf W.; Echols, Nathaniel; Headd, Jeffrey J.; Moriarty, Nigel W.; Mustyakimov, Marat; Terwilliger, Thomas C.; Urzhumtsev, Alexandre; Zwart, Peter H.; Adams, Paul D.

    2012-01-01

    phenix.refine is a program within the PHENIX package that supports crystallographic structure refinement against experimental data with a wide range of upper resolution limits using a large repertoire of model parameterizations. It has several automation features and is also highly flexible. Several hundred parameters enable extensive customizations for complex use cases. Multiple user-defined refinement strategies can be applied to specific parts of the model in a single refinement run. An intuitive graphical user interface is available to guide novice users and to assist advanced users in managing refinement projects. X-ray or neutron diffraction data can be used separately or jointly in refinement. phenix.refine is tightly integrated into the PHENIX suite, where it serves as a critical component in automated model building, final structure refinement, structure validation and deposition to the wwPDB. This paper presents an overview of the major phenix.refine features, with extensive literature references for readers interested in more detailed discussions of the methods. PMID:22505256

  6. Comparing Refinements for Failure and Bisimulation Semantics

    NARCIS (Netherlands)

    Eshuis, H.; Fokkinga, M.M.

    2002-01-01

    Refinement in bisimulation semantics is defined differently from refinement in failure semantics: in bisimulation semantics refinement is based on simulations between labelled transition systems, whereas in failure semantics refinement is based on inclusions between failure systems. There exist

  7. Commercial refining in the Mediterranean

    International Nuclear Information System (INIS)

    Packer, P.

    1999-01-01

    About 9% of the world's oil refining capacity is on the Mediterranean: some of the world's biggest and most advanced refineries are on Sicily and Sardinia. The Mediterranean refineries are important suppliers to southern Europe and N. Africa. The article discusses commercial refining in the Mediterranean under the headings of (i) historic development, (ii) product demand, (iii) refinery configurations, (iv) refined product trade, (v) financial performance and (vi) future outlook. Although some difficulties are foreseen, refining in the Mediterranean is likely to continue to be important well into the 21st century. (UK)

  8. Physical refining of sunflower oil

    Directory of Open Access Journals (Sweden)

    Kovari Katalin

    2000-07-01

    Full Text Available Physical refining has several advantages compared to the classical chemical one. This process is more economical (improved yield, lower investment cost, less chemicals used environmental friendly process (no soapstock to be treated, splitted but more sensitive to the crude oil quality. Physical refining of sunflower oil is discussed in details. Recent developments in the field of processes, equipment and control have made it possible to refine by physical way the high phosphatide containing seed oils as well. Special degumming processes, improved performance of bleaching materials, better design of deodorizers are applied in new installations; huge capacity one-line physical refineries are successfully operated in different countries.

  9. Steel refining possibilities in LF

    Science.gov (United States)

    Dumitru, M. G.; Ioana, A.; Constantin, N.; Ciobanu, F.; Pollifroni, M.

    2018-01-01

    This article presents the main possibilities for steel refining in Ladle Furnace (LF). These, are presented: steelmaking stages, steel refining through argon bottom stirring, online control of the bottom stirring, bottom stirring diagram during LF treatment of a heat, porous plug influence over the argon stirring, bottom stirring porous plug, analysis of porous plugs disposal on ladle bottom surface, bottom stirring simulation with ANSYS, bottom stirring simulation with Autodesk CFD.

  10. Adaptive Mesh Refinement in CTH

    International Nuclear Information System (INIS)

    Crawford, David

    1999-01-01

    This paper reports progress on implementing a new capability of adaptive mesh refinement into the Eulerian multimaterial shock- physics code CTH. The adaptivity is block-based with refinement and unrefinement occurring in an isotropic 2:1 manner. The code is designed to run on serial, multiprocessor and massive parallel platforms. An approximate factor of three in memory and performance improvements over comparable resolution non-adaptive calculations has-been demonstrated for a number of problems

  11. South Korea - oil refining overview

    International Nuclear Information System (INIS)

    Hayes, D.

    1999-01-01

    Following the economic problems of the 1990s, the petroleum refining industry of South Korea underwent much involuntary restructuring in 1999 with respect to takeovers and mergers and these are discussed. The demand for petroleum has now pretty well recovered. The reasons for fluctuating prices in the 1990s, how the new structure should be cushioned against changes in the future, and the potential for South Korea to export refined petroleum, are all discussed

  12. Modelagem do fluxo de contaminantes em aquífero freático na área do cemitério Bom Jardim, Fortaleza, CE, Brasil

    OpenAIRE

    Sousa, Mauro César de Brito; Castro, Marco Aurélio Holanda de; Castro, David Lopes de; Alencar Neto, Mariano da Franca; Lopes, Bruno Leonardy Sousa

    2012-01-01

    A contaminação de aquíferos freáticos pela decomposição de corpos em cemitérios configura-se como uma realidade comum no Brasil e no mundo. Na cidade de Fortaleza (CE), o cemitério Bom Jardim é um típico exemplo da ameaça de contaminação. O risco se deve, principalmente, pelo fato de que frequentemente a população utiliza-se das águas do aquífero freático para os mais diversos fins. Nesta investigação, analisou-se a possibilidade do cemitério Bom Jardim contribuir para a contaminação microbio...

  13. Seleção preliminar de genótipos de pinheira em Bom Jesus-PI Preliminary selection of sugar apple genotypes in Bom Jesus county, Piauí state, Brazil

    Directory of Open Access Journals (Sweden)

    Ítalo Herbert Lucena Cavalcante

    2011-01-01

    Full Text Available A pinheira (Annona squamosa L. ocorre espontaneamente no Nordeste Brasileiro, onde é explorada de forma extrativista, caracterizando-se pela falta de manejo adequado e material genético selecionado. Nesse sentido, foi realizado um experimento com objetivo de avaliar a produtividade, as características físicas e químicas de frutos de dez genótipos de pinheira no município de Bom Jesus, PI. Adotou-se delineamento inteiramente casualizado, com tratamentos representados por dez genótipos de pinheira e três repetições. Foram avaliadas as seguintes variáveis: vitamina C, acidez titulável, sólidos solúveis, relação SS/AT "ratio", diâmetros longitudinal e transversal, relação DL/DT, número se sementes por fruto, massa dos frutos e produção por planta. Os genótipos apresentam diferenças quanto às características químicas, físicas e produtivas dos frutos. Os genótipos foram agrupados em sete grupos, com destaque para o grupo III (Gen-02 e grupo IV (Gen-05, fato que explicitou as diferenças entre os genótipos de pinheira quanto às características produtivas e químicas e físicas dos frutos. Genótipos Gen-01 e Gen-02 apresentam potencial para instalação em plantios comerciais, pela produtividade, formato do fruto ou por caracterizarem fontes naturais de vitamina C.The sugar apple (Annona squamosa L. is native to tropical America, occurring spontaneously in Northeastern Brazil, where it is exploited mainly as subsistence without adequate management and without genetic material selection. An experiment was developed aiming to evaluate yield, physical and chemical characteristics of the fruits of ten sugar apple genotypes in Bom Jesus, Piauí State, Brazil. A completely randomized design with treatments represented by ten genotypes and three replications was adopted. The following variables were evaluated: vitamin C, titratable acidity, soluble solids, SS/TA ratio, longitudinal diameter and transverse, LD/TD, number of

  14. Nodulação e produtividade de Vigna unguiculata (L. Walp. por cepas de rizóbio em Bom Jesus, PI Yield and nodulation of Vigna unguiculata (L. Walp. inoculated with rhizobia strains in Bom Jesus, PI

    Directory of Open Access Journals (Sweden)

    Elaine Martins Costa

    2011-03-01

    Full Text Available Objetivou-se avaliar a resposta de Vigna unguiculata (L. Walp. cv. "BR 17 Gurguéia" à inoculação com duas cepas isoladas de solos de mineração de bauxita em reabilitação: UFLA 3-164 e UFLA 3-155 e três cepas INPA 03 11B (BR 3301; UFLA 03 84 (BR 3302 e BR 3267 (SEMIA 6462, autorizadas pelo MAPA como inoculantes para a cultura do feijão-caupi. O experimento foi conduzido em campo na Universidade Federal do Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, PI. Utilizou-se o delineamento experimental em blocos casualizados com sete tratamentos e com seis repetições, sendo cinco cepas citadas e dois controles não inoculados, um com N-mineral (70 kg ha-1 de N e outra sem N mineral. Foram avaliados a nodulação (número e massa seca de nódulos, o crescimento (massa seca da parte aérea, o rendimento de grãos e o teor e acúmulo de nitrogênio na parte aérea e nos grãos, além da eficiência relativa. A inoculação das sementes com as cepas de bactérias diazotróficas simbióticas resultou em rendimentos de grãos equivalente à testemunha adubada com nitrogênio mineral. A cepa em fase de teste, UFLA 3-155 apresentou rendimento de grãos igual à cepa recomendada INPA 03 11B (BR 3301, podendo também ser testada em outras regiões brasileiras. Entre as cepas aprovadas pelo MAPA a INPA 03 11B (BR 3301 apresentou a maior produção de grãos.It evaluates the effect of inoculation with two rhizobia strains isolated from soils under rehabilitation after bauxite mining: UFLA 3-164 and UFLA 3-155, compared to inoculation with strains INPA 03 11B (BR 3301; UFLA 03 84 (BR 3302 and BR 3267 (SEMIA 6462, officially authorized as inoculant to cowpea by MAPA, in Vigna unguiculata (L. Walp cv. "BR 17 Gurgueia". The experiment was carried out at the 'Universidade Federal do Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, PI,' in a randomized block design, white seven treatments and six replications. Treatments were the five strains and

  15. Zone refining of plutonium metal

    International Nuclear Information System (INIS)

    Blau, M.S.

    1994-08-01

    The zone refining process was applied to Pu metal containing known amounts of impurities. Rod specimens of plutonium metal were melted into and contained in tantalum boats, each of which was passed horizontally through a three-turn, high-frequency coil in such a manner as to cause a narrow molten zone to pass through the Pu metal rod 10 times. The impurity elements Co, Cr, Fe, Ni, Np, U were found to move in the same direction as the molten zone as predicted by binary phase diagrams. The elements Al, Am, and Ga moved in the opposite direction of the molten zone as predicted by binary phase diagrams. As the impurity alloy was zone refined, δ-phase plutonium metal crystals were produced. The first few zone refining passes were more effective than each later pass because an oxide layer formed on the rod surface. There was no clear evidence of better impurity movement at the slower zone refining speed. Also, constant or variable coil power appeared to have no effect on impurity movement during a single run (10 passes). This experiment was the first step to developing a zone refining process for plutonium metal

  16. Romanian refining industry assesses restructuring

    International Nuclear Information System (INIS)

    Tanasescu, D.G.

    1991-01-01

    The Romanian crude oil refining industry, as all the other economic sectors, faces the problems accompanying the transition from a centrally planned economy to a market economy. At present, all refineries have registered as joint-stock companies and all are coordinated and assisted by Rafirom S.A., from both a legal and a production point of view. Rafirom S.A. is a joint-stock company that holds shares in refineries and other stock companies with activities related to oil refining. Such activities include technological research, development, design, transportation, storage, and domestic and foreign marketing. This article outlines the market forces that are expected to: drive rationalization and restructuring of refining operations and define the targets toward which the reconfigured refineries should strive

  17. Data refinement for true concurrency

    Directory of Open Access Journals (Sweden)

    Brijesh Dongol

    2013-05-01

    Full Text Available The majority of modern systems exhibit sophisticated concurrent behaviour, where several system components modify and observe the system state with fine-grained atomicity. Many systems (e.g., multi-core processors, real-time controllers also exhibit truly concurrent behaviour, where multiple events can occur simultaneously. This paper presents data refinement defined in terms of an interval-based framework, which includes high-level operators that capture non-deterministic expression evaluation. By modifying the type of an interval, our theory may be specialised to cover data refinement of both discrete and continuous systems. We present an interval-based encoding of forward simulation, then prove that our forward simulation rule is sound with respect to our data refinement definition. A number of rules for decomposing forward simulation proofs over both sequential and parallel composition are developed.

  18. Bauxite Mining and Alumina Refining

    Science.gov (United States)

    Frisch, Neale; Olney, David

    2014-01-01

    Objective: To describe bauxite mining and alumina refining processes and to outline the relevant physical, chemical, biological, ergonomic, and psychosocial health risks. Methods: Review article. Results: The most important risks relate to noise, ergonomics, trauma, and caustic soda splashes of the skin/eyes. Other risks of note relate to fatigue, heat, and solar ultraviolet and for some operations tropical diseases, venomous/dangerous animals, and remote locations. Exposures to bauxite dust, alumina dust, and caustic mist in contemporary best-practice bauxite mining and alumina refining operations have not been demonstrated to be associated with clinically significant decrements in lung function. Exposures to bauxite dust and alumina dust at such operations are also not associated with the incidence of cancer. Conclusions: A range of occupational health risks in bauxite mining and alumina refining require the maintenance of effective control measures. PMID:24806720

  19. Trends in heavy oil production and refining in California

    International Nuclear Information System (INIS)

    Olsen, D.K.; Ramzel, E.B.; Pendergrass, R.A. II.

    1992-07-01

    This report is one of a series of publications assessing the feasibility of increasing domestic heavy oil production and is part of a study being conducted for the US Department of Energy. This report summarizes trends in oil production and refining in Canada. Heavy oil (10 degrees to 20 degrees API gravity) production in California has increased from 20% of the state's total oil production in the early 1940s to 70% in the late 1980s. In each of the three principal petroleum producing districts (Los Angeles Basin, Coastal Basin, and San Joaquin Valley) oil production has peaked then declined at different times throughout the past 30 years. Thermal production of heavy oil has contributed to making California the largest producer of oil by enhanced oil recovery processes in spite of low oil prices for heavy oil and stringent environmental regulation. Opening of Naval Petroleum Reserve No. 1, Elk Hills (CA) field in 1976, brought about a major new source of light oil at a time when light oil production had greatly declined. Although California is a major petroleum-consuming state, in 1989 the state used 13.3 billion gallons of gasoline or 11.5% of US demand but it contributed substantially to the Nation's energy production and refining capability. California is the recipient and refines most of Alaska's 1.7 million barrel per day oil production. With California production, Alaskan oil, and imports brought into California for refining, California has an excess of oil and refined products and is a net exporter to other states. The local surplus of oil inhibits exploitation of California heavy oil resources even though the heavy oil resources exist. Transportation, refining, and competition in the market limit full development of California heavy oil resources

  20. Refining Nodes and Edges of State Machines

    DEFF Research Database (Denmark)

    Hallerstede, Stefan; Snook, Colin

    2011-01-01

    State machines are hierarchical automata that are widely used to structure complex behavioural specifications. We develop two notions of refinement of state machines, node refinement and edge refinement. We compare the two notions by means of examples and argue that, by adopting simple conventions...... refinement theory and UML-B state machine refinement influences the style of node refinement. Hence we propose a method with direct proof of state machine refinement avoiding the detour via Event-B that is needed by UML-B....

  1. Multigrid for refined triangle meshes

    Energy Technology Data Exchange (ETDEWEB)

    Shapira, Yair

    1997-02-01

    A two-level preconditioning method for the solution of (locally) refined finite element schemes using triangle meshes is introduced. In the isotropic SPD case, it is shown that the condition number of the preconditioned stiffness matrix is bounded uniformly for all sufficiently regular triangulations. This is also verified numerically for an isotropic diffusion problem with highly discontinuous coefficients.

  2. Panorama 2007: Refining and Petrochemicals

    International Nuclear Information System (INIS)

    Silva, C.

    2007-01-01

    The year 2005 saw a new improvement in refining margins that continued during the first three quarters of 2006. The restoration of margins in the last three years has allowed the refining sector to regain its profitability. In this context, the oil companies reported earnings for fiscal year 2005 that were up significantly compared to 2004, and the figures for the first half-year 2006 confirm this trend. Despite this favorable business environment, investments only saw a minimal increase in 2005 and the improvement expected for 2006 should remain fairly limited. Looking to 2010-2015, it would appear that the planned investment projects with the highest probability of reaching completion will be barely adequate to cover the increase in demand. Refining sector should continue to find itself under pressure. As for petrochemicals, despite a steady up-trend in the naphtha price, the restoration of margins consolidated a comeback that started in 2005. All in all, capital expenditure remained fairly low in both the refining and petrochemicals sectors, but many projects are planned for the next ten years. (author)

  3. Refining analgesia strategies using lasers.

    Science.gov (United States)

    Hampshire, Victoria

    2015-08-01

    Sound programs for the humane care and use of animals within research facilities incorporate experimental refinements such as multimodal approaches for pain management. These approaches can include non-traditional strategies along with more established ones. The use of lasers for pain relief is growing in popularity among companion animal veterinary practitioners and technologists. Therefore, its application in the research sector warrants closer consideration.

  4. On syntactic action refinement and logic

    OpenAIRE

    Majster-Cederbaum, Mila; Salger, Frank

    1999-01-01

    Action refinement is a useful methodology for the development of concurrent processes in a stepwise manner. We are here interested in establishing a connection between syntactic action refinement and logic. In the syntactic approach to action refinement, reduction functions are used to remove the refinement operators from process-algebraic expressions thereby providing semantics for them. We incorporate a syntactic action refinement operator to the Hennessy-Milner-Logic and define a logical r...

  5. District heating in Switzerland

    International Nuclear Information System (INIS)

    Herzog, F.

    1991-01-01

    District heating has been used in Switzerland for more than 50 years. Its share of the heat market is less than 3% today. An analysis of the use of district heating in various European countries shows that a high share of district heating in the heat market is always dependent on ideal conditions for its use. Market prospects and possible future developments in the use of district heating in Switzerland are described in this paper. The main Swiss producers and distributors of district heating are members of the Association of District Heating Producers and Distributors. This association supports the installation of district heating facilities where ecological, energetical and economic aspects indicate that district heating would be a good solution. (author) 2 tabs., 6 refs

  6. State Water Districts

    Data.gov (United States)

    California Natural Resource Agency — State Water Project District boundaries are areas where state contracts provide water to the district in California. This database is designed as a regions polygon...

  7. Private Water Districts

    Data.gov (United States)

    California Natural Resource Agency — Private Water District boundaries are areas where private contracts provide water to the district in California. This database is designed as a regions polygon...

  8. Lieutenant Chief Warden Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — This dataset is a representation overlay of Lieutenant Chief Warden Districts (areas of responsibility). The Vermont Lieutenant Chief Warden Districts layer is part...

  9. State Water Districts

    Data.gov (United States)

    California Department of Resources — State Water Project District boundaries are areas where state contracts provide water to the district in California. This database is designed as a regions polygon...

  10. California Political Districts

    Data.gov (United States)

    California Department of Resources — This is a series of district layers pertaining to California'spolitical districts, that are derived from the California State Senateand State Assembly information....

  11. VT School Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) Vermont School Districts and one Interstate School District. Part of data sets which model Vermont's education system governance boudaries for...

  12. California Political Districts

    Data.gov (United States)

    California Natural Resource Agency — This is a series of district layers pertaining to California'spolitical districts, that are derived from the California State Senateand State Assembly information....

  13. National Register Historic Districts

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — The National Register Historic District layer is a shape file showing the boundaries of Historic Districts that are listed on the National Register of Historic Places.

  14. Legislative Districts - 1990

    Data.gov (United States)

    Kansas Data Access and Support Center — Each coverage contains a COVER-ID field that defines the House or Senate district number. Kansas House and Senate districts were created by the Legislative Research...

  15. Private Water Districts

    Data.gov (United States)

    California Department of Resources — Private Water District boundaries are areas where private contracts provide water to the district in California. This database is designed as a regions polygon...

  16. District nursing in Dominica

    NARCIS (Netherlands)

    Kolkman, PME; Luteijn, AJ; Nasiiro, RS; Bruney, [No Value; Smith, RJA; Meyboom-de Jong, B

    1998-01-01

    District nurses constitute the basis of the primary health care services in Dominica. All encounters of three district nurses were registered using the international classification of primary care. Information on other aspects of district nursing was collected by participating observation and the

  17. Assessment of social security policy on access perspective of rural workers : Community Case Study Bom Jesus , Fixing Maceià - Itapipoca -Ce

    OpenAIRE

    KÃlia da Silva Aires

    2013-01-01

    A proposta desenvolvida neste trabalho à avaliar a polÃtica de PrevidÃncia Social na perspectiva do acesso das trabalhadoras rurais da comunidade Bom Jesus, Assentamento Maceià â Itapipoca- CE. A pesquisa tem enfoque qualitativo e a investigaÃÃo se procedeu por meio de um estudo de caso que investigou os fatores limitantes desse acesso. Para tanto foi realizada uma avaliaÃÃo de processo e resultados inspirada nos preceitos da avaliaÃÃo em profundidade. SÃo sujeitos da pesquisa avaliativa os t...

  18. O que falamos da Ditadura? Memórias da violência e da sobrevivência no filme "Que bom te ver viva!"

    Directory of Open Access Journals (Sweden)

    Desirée de Lemos Azevedo

    2013-03-01

    Full Text Available O filme Que bom te ver viva! retrata as histórias de mulheres sobreviventes da Ditadura (1964-1985 no Brasil. Contextualizando a obra historicamente, esse artigo pretende analisar as críticas do filme em relação ao que era dito e silenciado sobre as violências da Ditadura e tecer relações entre as transformações nessa memória e o processo de construção social e atuação política dos sobreviventes.

  19. Uso e conservação da negramina (Siparuna guianensis Aubl.) em Bom Sucesso, Várzea Grande-MT

    OpenAIRE

    Valentini, Carla Maria Abido; Coelho, Maria de Fátima Barbosa; Ortíz, Carmen Eugenia Rodríguez; Almeida, Juliane Dias de

    2009-01-01

    Este trabalho teve como objetivo realizar um estudo da espécie medicinal Siparuna guianensis (negramina), na comunidade ribeirinha de Bom Sucesso, localizada no município de Várzea Grande - MT. Foi usada a entrevista semiestruturada com questões fechadas e/ou abertas e concluiu-se que sua principal forma de preparo é a decocção das folhas, utilizada na forma de banho para alívio da gripe, febre e dores no corpo, e que este conhecimento não está sendo repassado às novas gerações do local. T...

  20. Desterritorializando e reterritorializando um shtetl nos trópicos. Leitura do romance A guerra no Bom Fim, de Moacyr Scliar

    Directory of Open Access Journals (Sweden)

    Soraya Lani

    2013-10-01

    Full Text Available A noção de fronteira, vista como um limite fixo, imóvel, vem dando lugar no discurso da pós-modernidade a espaços itinerantes em que se destacam relações identitárias transitórias, fluidas, errantes, marcadas pela pluralidade das travessias culturais. Apoiando-nos no conceito de desterritorialização/reterritorialização criado por Gilles Deleuze e reavaliado por Néstor García Canclini, o presente artigo analisa as diferentes etapas de tal processo no romance A guerra no Bom Fim (1972, de Moacyr Scliar.

  1. O "Bom" Samaritano (Lc 10,29-37: reflexões hermenêuticas a propósito de "Igreja Samaritana"

    Directory of Open Access Journals (Sweden)

    Rabuske, Irineu J.

    2008-01-01

    Full Text Available O artigo discute a validade exegética e hermenêutica da expressão "Igreja Samaritana", usada no documento de Aparecida, e sua recepção. Inicia por lembrar o significado do gênero literário das parábolas nos evangelhos, para, depois, considerar o contexto e o texto da parábola do "bom" samaritano de Lc 10,29-37 e concluir que a aplicação à Igreja só pode acontecer como intenção de fazer o bem mediante projetos sociais e comunitários correspondentes

  2. Bauxite Mining and Alumina Refining

    OpenAIRE

    Donoghue, A. Michael; Frisch, Neale; Olney, David

    2014-01-01

    Objective: To describe bauxite mining and alumina refining processes and to outline the relevant physical, chemical, biological, ergonomic, and psychosocial health risks. Methods: Review article. Results: The most important risks relate to noise, ergonomics, trauma, and caustic soda splashes of the skin/eyes. Other risks of note relate to fatigue, heat, and solar ultraviolet and for some operations tropical diseases, venomous/dangerous animals, and remote locations. Exposures to bauxite dust,...

  3. The Charfuel coal refining process

    International Nuclear Information System (INIS)

    Meyer, L.G.

    1991-01-01

    The patented Charfuel coal refining process employs fluidized hydrocracking to produce char and liquid products from virtually all types of volatile-containing coals, including low rank coal and lignite. It is not gasification or liquefaction which require the addition of expensive oxygen or hydrogen or the use of extreme heat or pressure. It is not the German pyrolysis process that merely 'cooks' the coal, producing coke and tar-like liquids. Rather, the Charfuel coal refining process involves thermal hydrocracking which results in the rearrangement of hydrogen within the coal molecule to produce a slate of co-products. In the Charfuel process, pulverized coal is rapidly heated in a reducing atmosphere in the presence of internally generated process hydrogen. This hydrogen rearrangement allows refinement of various ranks of coals to produce a pipeline transportable, slurry-type, environmentally clean boiler fuel and a slate of value-added traditional fuel and chemical feedstock co-products. Using coal and oxygen as the only feedstocks, the Charfuel hydrocracking technology economically removes much of the fuel nitrogen, sulfur, and potential air toxics (such as chlorine, mercury, beryllium, etc.) from the coal, resulting in a high heating value, clean burning fuel which can increase power plant efficiency while reducing operating costs. The paper describes the process, its thermal efficiency, its use in power plants, its pipeline transport, co-products, environmental and energy benefits, and economics

  4. Refining's-clean new jingle

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This paper reports that at a time when profit margins are slim and gasoline demand is down, the U.S. petroleum-refining industry is facing one of its greatest challenges; How to meet new federal and state laws for reformulated gasoline, oxygenated fuels, low-sulfur diesel and other measures to improve the environment. The American Petroleum Institute (API) estimates that industry will spend between $15 and $23 billion by the end of the decade to meet the U.S. Clean Air Act Amendments (CAAA) of 1990, and other legislation. ENSR Consulting and Engineering's capital-spending figure runs to between $70 and 100 billion this decade, including $24 billion to produce reformulated fuels and $10-12 billion to reduce refinery emissions. M.W. Kellogg Co. estimates that refiners may have to spend up to $30 billion this decade to meet the demand for reformulated gasoline. The estimates are wide-ranging because refiners are still studying their options and delaying final decisions as long as they can, to try to ensure they are the best and least-costly decisions. Oxygenated fuels will be required next winter, but federal regulations for reformulated gasoline won't go into effect until 1995, while California's tougher reformulated-fuels law will kick in the following year

  5. Briófitas das ilhas de Alcatrazes, do Bom Abrigo, da Casca e do Castilho, estado de São Paulo, Brasil

    Directory of Open Access Journals (Sweden)

    Visnadi Sandra Regina

    2001-01-01

    Full Text Available Foram inventariadas 61 espécies de briófitas. Chiloscyphus subviridis (Hook. f. & Taylor J.J. Engel & R.M. Schust. e Lejeunea autoica R.M. Schust. são citadas pela primeira vez para o país e Lejeunea phyllobola Nees & Mont. ex Mont, pela primeira vez para o Estado de São Paulo. Os maiores números de táxons foram registrados para as maiores ilhas com vegetação de Mata Atlântica e, os menores, para as menores ilhas com vegetação formada por árvores esparsas da Mata Atlântica ou arbustos esparsos e expostos a condições adversas. A maior parte das espécies estão restritas a uma determinada ilha. Alcatrazes e Bom Abrigo assemelham-se quanto à flora de hepáticas; Castilho assemelha-se a esse primeiro grupo de ilhas devido à flora de musgos, enquanto Casca possui a brioflora mais distinta dentre as quatro ilhas. As rochas e as cascas dos hospedeiros arbustivo-arbóreos são os substratos mais disponíveis para as briófitas. Rocha é o substrato mais disponível para determinadas espécies em Alcatrazes e Castilho e, provavelmente, o preferido por essas plantas em Bom Abrigo e Casca.

  6. Refined topological strings on local ℙ2

    International Nuclear Information System (INIS)

    Iqbal, Amer; Kozçaz, Can

    2017-01-01

    We calculate the refined topological string partition function of the Calabi-Yau threefold which is the total space of the canonical bundle on ℙ 2 (the local ℙ 2 ). The refined topological vertex formalism can not be directly applied to local ℙ 2 therefore we use the properties of the refined Hopf link to define a new two legged vertex which together with the refined vertex gives the partition function of the local ℙ 2 .

  7. Latin American oil markets and refining

    International Nuclear Information System (INIS)

    Yamaguchi, N.D.; Obadia, C.

    1999-01-01

    This paper provides an overview of the oil markets and refining in Argentina, Brazil, Chile, Colombia, Ecuador, Mexico, Peru and Venezuela, and examines the production of crude oil in these countries. Details are given of Latin American refiners highlighting trends in crude distillation unit capacity, cracking to distillation ratios, and refining in the different countries. Latin American oil trade is discussed, and charts are presented illustrating crude production, oil consumption, crude refining capacity, cracking to distillation ratios, and oil imports and exports

  8. Neutron Powder Diffraction and Constrained Refinement

    DEFF Research Database (Denmark)

    Pawley, G. S.; Mackenzie, Gordon A.; Dietrich, O. W.

    1977-01-01

    The first use of a new program, EDINP, is reported. This program allows the constrained refinement of molecules in a crystal structure with neutron diffraction powder data. The structures of p-C6F4Br2 and p-C6F4I2 are determined by packing considerations and then refined with EDINP. Refinement...

  9. The Refined Function-Behaviour-Structure Framework

    NARCIS (Netherlands)

    Diertens, B.

    2013-01-01

    We refine the function-behaviour-structure framework for design introduced by John Gero in order to deal with complexity. We do this by connecting the frameworks for the desing of two models, one the refinement of the other. The result is a refined framework for the design of an object on two levels

  10. Grain refinement of aluminum and its alloys

    International Nuclear Information System (INIS)

    Zaid, A.I.O.

    2001-01-01

    Grain refinement of aluminum and its alloys by the binary Al-Ti and Ternary Al-Ti-B master alloys is reviewed and discussed. The importance of grain refining to the cast industry and the parameters affecting it are presented and discussed. These include parameters related to the cast, parameters related to the grain refining alloy and parameters related to the process. The different mechanisms, suggested in the literature for the process of grain refining are presented and discussed, from which it is found that although the mechanism of refining by the binary Al-Ti is well established the mechanism of grain refining by the ternary Al-Ti-B is still a controversial matter and some research work is still needed in this area. The effect of the addition of other alloying elements in the presence of the grain refiner on the grain refining efficiency is also reviewed and discussed. It is found that some elements e.g. V, Mo, C improves the grain refining efficiency, whereas other elements e.g. Cr, Zr, Ta poisons the grain refinement. Based on the parameters affecting the grain refinement and its mechanism, a criterion for selection of the optimum grain refiner is forwarded and discussed. (author)

  11. On Interaction Refinement in Middleware

    DEFF Research Database (Denmark)

    Truyen, Eddy; Jørgensen, Bo Nørregaard; Joosen, Wouter

    2000-01-01

    Component framework technology has become the cornerstone of building a family of systems and applications. A component framework defines a generic architecture into which specialized components can be plugged. As such, the component framework leverages the glue that connects the different inserted...... components together. We have examined a reflective technique that improve the dynamics of this gluing process such that interaction between components can be refined at run-time. In this paper, we show how we have used this reflective technique to dynamically integrate into the architecture of middleware...

  12. Refining method for bismuth nitrate

    International Nuclear Information System (INIS)

    Shibata, Shigeyuki.

    1997-01-01

    The present invention concerns a method of separating and removing α ray emitting nuclides present in an aqueous solution of bismuth nitrate by an industrially convenient method. A nitric acid concentration in the aqueous solution of bismuth nitrate in which α ray emitting nuclides are dissolved is lowered to coprecipitate the bismuth oxynitrate and the α ray emitting nuclides. The coprecipitation materials are separated from the aqueous solution of bismuth nitrate to separate the α ray emitting nuclides dissolved in the aqueous solution of bismuth nitrate thereby refining the aqueous solution of bismuth nitrate. (T.M.)

  13. W. European refiners face tough environmental rules

    International Nuclear Information System (INIS)

    Anon.

    1993-01-01

    This paper reports that western Europe's refiners are beginning to grapple with the kind of fundamental changes and huge outlays related to stringent new environmental standards their U.S. counterparts are encountering. Just as the 1990 amendments to the Clean Air Act (CAAA) is transforming the shape of U.S refining and imposing staggering costs on refiners there, new directives proposed by the European Community Commission threaten the same for western European refiners. Given the current state of the industry in Europe, industry officials warn, refiners there might not be able to fund those massive environmental outlays

  14. Niobium-base grain refiner for aluminium

    International Nuclear Information System (INIS)

    Silva Pontes, P. da; Robert, M.H.; Cupini, N.L.

    1980-01-01

    A new chemical grain refiner for aluminium has been developed, using inoculation of a niobium-base compound. When a bath of molten aluminium is inoculated whith this refiner, an intermetallic aluminium-niobium compound is formed which acts as a powerful nucleant, producing extremely fine structure comparable to those obtained by means of the traditional grain refiner based on titanium and boron. It was found that the refinement of the structure depends upon the weight percentage of the new refiner inoculated as well as the time of holding the bath after inoculation and before pouring, but mainly on the inoculating temperature. (Author) [pt

  15. Refined gasoline in the subsurface

    International Nuclear Information System (INIS)

    Bruce, L.G.

    1993-01-01

    Geologists today are being called upon not only to find naturally occurring petroleum, but also to help assess and remediate the problem of refined hydrocarbons and other man-made contaminants in the subsurface that may endanger freshwater resources or human health. Petroleum geologists already have many of the skills required and are at ease working with fluid flow in the subsurface. If called for environmental projects, however, they will need to know the language and additional concepts necessary to deal with the hydrogeologic problems. Most releases of refined hydrocarbons and other man-made contaminants occur in the shallow unconfined groundwater environment. This is divided into three zones: the saturated zone, unsaturated zone, and capillary fringe. All three have unique characteristics, and contamination behaves differently in each. Gasoline contamination partitions into four phases in this environment; vapor phase, residual phase, free phase, and dissolved phase. Each has a different degree of mobility in the three subsurface zones. Their direction and rate of movement can be estimated using basic concepts, but geological complexities frequently complicate this issue. 24 refs., 19 figs., 4 tabs

  16. Woodfuel procurement strategies of district heating plants

    International Nuclear Information System (INIS)

    Roos, A.; Bohlin, F.; Hektor, B.; Hillring, B.

    2003-01-01

    Woodfuel use in the Swedish district heating sector increased significantly from 1985 to 1999. This study analysed strategies and considerations concerning woodfuel procurement in district heating plants. Priorities and concerns in the industry involved an increased woodfuel share, ambitions to create an environmental image, cost minimisation, awareness about the role of energy policies for fuel choice, improvement of woodfuel quality and the ambition to maintain a competitive woodfuel market with several suppliers. Factor analysis yielded five dimensions in the woodfuel procurement strategies among the district heating companies: (1) increased woodfuel use; (2) import; (3) spot market woodfuel purchases; (4) focus on refined woodfuels; and (5) using price only when deciding whether to use woodfuels or other fuels. Five clusters were defined along the three strategy dimensions (1)-(3). The clusters differed concerning size, experiences from the introduction of woodfuels, perceptions about woodfuels and strategies employed to date. This paper describes different strategies that the district heating companies apply on the woodfuel market. The conclusion is that policies should consider this diversity in procurement strategies, mitigate their negative side-effects and assist to make them cost-effective. (author)

  17. Adaptive mesh refinement in titanium

    Energy Technology Data Exchange (ETDEWEB)

    Colella, Phillip; Wen, Tong

    2005-01-21

    In this paper, we evaluate Titanium's usability as a high-level parallel programming language through a case study, where we implement a subset of Chombo's functionality in Titanium. Chombo is a software package applying the Adaptive Mesh Refinement methodology to numerical Partial Differential Equations at the production level. In Chombo, the library approach is used to parallel programming (C++ and Fortran, with MPI), whereas Titanium is a Java dialect designed for high-performance scientific computing. The performance of our implementation is studied and compared with that of Chombo in solving Poisson's equation based on two grid configurations from a real application. Also provided are the counts of lines of code from both sides.

  18. Television journalism as a tool for public communication: a study of cases of violence against women in the newscast Bom Dia Goiás from Tv Anhanguera

    Directory of Open Access Journals (Sweden)

    Fernanda Ribeiro

    2012-12-01

    Full Text Available This article discusses the social function of journalism, the scope and the credibility of TV journalism, as well as the possibility of its use as a tool for public communication. To this end, it is necessary to refer to details surrounding the deployment and development of TV journalism in Brazil and to conceptualize public communication and citizenship. Also, this study carries out an analysis of the channels that the individual uses to get information, mass communication characteristics and, above all, television and the need for the existence of public communication for citizenship. In addition, this article puts forward a content analysis of the TV news program Bom Dia Goiás - TV Anhanguera (an affiliate of Rede Globo in Goiás, outlining its approach and the type of information conveyed to the public about a serious social problem - violence against women.

  19. TELEVISION JOURNALISM AS A TOOL FOR PUBLIC COMMUNICATION: A STUDY OF CASES OF VIOLENCE AGAINST WOMEN IN THE NEWSCAST BOM DIA GOIÁS FROM TV ANHANGUERA

    Directory of Open Access Journals (Sweden)

    Tiago Mainieri

    2013-06-01

    Full Text Available This article discusses the social function of journalism, the scope and the credibility of TV journalism, as well as the possibility of its use as a tool for public communication. To this end, it is necessary to refer to details surrounding the deployment and development of TV journalism in Brazil and to conceptualize public communication and citizenship. Also, this study carries out an analysis of the channels that the individual uses to get information, mass communication characteristics and, above all, television and the need for the existence of public communication for citizenship. In addition, this article puts forward a content analysis of the TV news program Bom Dia Goiás - TV Anhanguera (an affiliate of Rede Globo in Goiás, outlining its approach and the type of information conveyed to the public about a serious social problem - violence against women.

  20. Caracterização geofísica e hidrogeológica do cemitério Bom Jardim, Fortaleza - CE

    OpenAIRE

    Castro, David Lopes de

    2008-01-01

    Um estudo multidisciplinar, envolvendo dados geofísicos, geológicos, hidrogeológicos e hidroquímicos, foi desenvolvido para a caracterização geoambiental da região do cemitério Bom Jardim em Fortaleza, Ceará - Brasil. O reconhecimento do meio rochoso foi efetuado com base em inúmeras sondagens elétricas verticais (SEV's) e seções GPR e EM-34, além de furos de sondagem com análises composicionais, granulométricas e de condutividade hidráulica das amostras de solo coletadas. A caracterização hi...

  1. LEVANTAMENTO DA FAUNA ACAROLÓGICA (ORDEM: IXODIDA NO MUNICIPIO DE BOM JESUS DOS PERDÕES, UTILIZANDO MÉTODOS DE CAPTURA DE CARRAPATOS DE VIDA LIVRE

    Directory of Open Access Journals (Sweden)

    Yuri Ferreira Vicentini

    2016-06-01

    Full Text Available The objective of this work was describe the acarologic fauna (Order: Ixodida in the municipality of Bom Jesus dos Perdões, beyond compare two capture methods at different points and collection times. To capture were used the drag flannel and carbon dioxide traps. Were performed six collections, one of the regions was predominantly pasture and other flooded. Overall 133 ticks were collected, of these 122 of species Amblyomma sculptum and 11 Rhipicephalus sanguineus. Of total, 54 were in larval stage (40,6% and the peak of collections happened in June, 50 nymphs (37,5% with this peak in September and only 29 in adult stage (21,8% in October. There was no significant difference between the types of traps and the amount of captured ticks in both collection points. Both capture methods were efficient and the two collection points showed similar acarologic fauna.

  2. Exploration of clays suitable for the manufactoring of porous brick products in the area of Bomčev Breg, Goričko (Slovenia

    Directory of Open Access Journals (Sweden)

    Ivan Strgar

    2004-12-01

    Full Text Available In 1992, exploration of clays suitable for the manufactoring of porous brick products was conducted in two phases in the area of Bomčev Breg, Goričko. In the course of the first phase, at the beginning of the year 1992, geological prospecting of sediments (mostly clays and clayey sands of the Upper Triassic to Pliocene age was conducted in Goričko, precisely in the area between Grad and Kuzma. The objective of this phase was to identify narrow areas with the deposits of clays suitable for the manufacturing of porous brick products. The area of Bomčev Breg was singled out as a perspective ground for further exploration and drilling (Figure 1.On the basis of the results obtained during the first phase of the exploration detailed geological exploration, which included drilling and partial laboratory investigations of clay, was conducted in May and June 1992. During this phase nine boreholes of a total length of 150 m were drilled (Figure 3.Samples of clay were taken from each core, and laboratory tests, mostly swelling, were carried out in controlled environment by LECA, Ges.m.b.H from Fehring, Austria.On the basis of data obtained from borehole drilling and interpretations of geological sections it can be summarized that the following three lithological types can be identified in the area of Bomčev Breg:-dark brown, brown, light brown, grey brown and greyish, in places speckled, silty fine sand and mica clay-olive greyish, fine silty and mica, partly plastic, clay-brown (limonitized, light brown and greyish clayey sand, containing silt and mica, in places with rare quartz pebbles, not more than 12 mm in diameterThe transition from one lithological type to another is not sharp but rather gradual with the exception of sandy beds where the transition is more distinct.During the prospecting phase in the area of Bomčev Breg 10 samples, marked B-1 to B-10, were taken from the boreholes drilled in the form of a mesh, 100 x 100 m, and 1 sample

  3. Dinâmica geomorfológica da bacia hidrográfica do córrego Bom Jardim, Brasilândia - MS

    OpenAIRE

    Grechia, Luciano

    2011-01-01

    O presente trabalho tem como objetivo entender os processos de formação de feições erosivas na bacia hidrográfica do córrego Bom Jardim, localizada no município de Brasilândia, estado de Mato Grosso do Sul. Para a análise desses processos optou-se pela construção de cartas morfométricas e análises de variáveis coadjuvantes, que associadas permitiram melhor compreensão da dinâmica erosiva do relevo da área da bacia. As cartas morfométricas constituem-se em documentos cartográficos elaborados c...

  4. Planejamento estratégico em saúde com base em determinantes: o caso do município de Campo Bom (RS. Uma proposta metodológica para a gestão descentralizada Strategic health planning based on determinants: case of the municipality of Campo Bom, Rio Grande do Sul State. A methodological proposal for the decentralized management

    Directory of Open Access Journals (Sweden)

    Martín Maximino León González

    2009-10-01

    Full Text Available Com o objetivo de analisar o modelo de planejamento estratégico em saúde com base em determinantes, utilizado na experiência do município de Campo Bom, realizou-se estudo observacional, qualitativo, de análise documental e avaliação de novas tecnologias de processo na gestão local de saúde. O estudo contém uma análise de coerência metodológica e de aplicabilidade do modelo, a partir da revisão dos planos municipal e locais. Nele, apresenta-se o caso de Campo Bom, no qual foi possível integrar e aplicar, em nível local, um modelo estratégico de planejamento em saúde orientado às novas conceituações da saúde, considerando elementos dos diferentes desenvolvimentos teóricos, sendo viável responder às necessidades e situações locais prevalentes. Identificam-se etapas evolutivas do planejamento em saúde e analisam-se elementos integradores do modelo e limitações na sua aplicação, salientando-se a necessidade de apoiar o aprofundamento do estudo e o desenvolvimento do campo.With the purpose to analyze the health strategic planning model based on determinants experienced in the municipality of Campo Bom, Rio Grande do Sul State, it was conducted an observational, qualitative study, of documental analysis as well as an evaluation of new process technologies in local health administration. This study contains an analysis of the methodological coherency and applicability of this model, based on the revision of the elaborated plans. The plans presented at Campo Bom case shows the possibility of integration and applicability at local level, of a health strategic planning model oriented to the new health concepts considering elements of different theoretical developments that enables the response to the most common local needs and situations. It was identified evolutional stages of health planning and analyzed integrative elements of the model and limitations of its application, pointing to the need of support the deepening on

  5. Refinement: promoting the three Rs in practice.

    Science.gov (United States)

    Lloyd, M H; Foden, B W; Wolfensohn, S E

    2008-07-01

    Refinement of scientific procedures carried out on protected animals is an iterative process, which begins with a critical evaluation of practice. The process continues with objective assessment of the impact of the procedures, identification of areas for improvement, selection and implementation of an improvement strategy and evaluation of the results to determine whether there has been the desired effect, completing the refinement loop and resulting in the perpetuation of good practice. Refinements may be science-driven (those which facilitate getting high-quality results) or welfare-driven or may encompass both groups, but whatever the driver, refinements almost always result in benefits to both welfare and science. Refinements can be implemented in all aspects of animal use: improved methodology in invasive techniques, housing and husbandry, and even statistical analyses can all benefit animal welfare and scientific quality. If refinement is not actively sought, outdated and unnecessarily invasive techniques may not be replaced by better methods as they become available, and thus outdated information is passed down to the next generation, causing perpetuation of old-fashioned methods. This leads to a spiral of ignorance, leading ultimately to poor practice, poor animal welfare and poor-quality scientific data. Refinement is a legal and ethical requirement, yet refinements may not always be implemented. There are numerous obstacles to the implementation of refinement, which may be real or perceived. Either way, in order to take refinement forward, it is important to coordinate the approach to refinement, validate the science behind refinement, ensure there is adequate education and training in new techniques, improve liaison between users and make sure there is feedback on suitability of refinements for use. Overall, refinement requires a coordinated ongoing process of critical appraisal of practice and active scrutiny of resources for likely improvements. In

  6. Automated knowledge-base refinement

    Science.gov (United States)

    Mooney, Raymond J.

    1994-01-01

    Over the last several years, we have developed several systems for automatically refining incomplete and incorrect knowledge bases. These systems are given an imperfect rule base and a set of training examples and minimally modify the knowledge base to make it consistent with the examples. One of our most recent systems, FORTE, revises first-order Horn-clause knowledge bases. This system can be viewed as automatically debugging Prolog programs based on examples of correct and incorrect I/O pairs. In fact, we have already used the system to debug simple Prolog programs written by students in a programming language course. FORTE has also been used to automatically induce and revise qualitative models of several continuous dynamic devices from qualitative behavior traces. For example, it has been used to induce and revise a qualitative model of a portion of the Reaction Control System (RCS) of the NASA Space Shuttle. By fitting a correct model of this portion of the RCS to simulated qualitative data from a faulty system, FORTE was also able to correctly diagnose simple faults in this system.

  7. Refining Visually Detected Object poses

    DEFF Research Database (Denmark)

    Holm, Preben; Petersen, Henrik Gordon

    2010-01-01

    Automated industrial assembly today require that the 3D position and orientation (hereafter ''pose`) of the objects to be assembled are known precisely. Today this precision is mostly established by a dedicated mechanical object alignment system. However, such systems are often dedicated to the p......Automated industrial assembly today require that the 3D position and orientation (hereafter ''pose`) of the objects to be assembled are known precisely. Today this precision is mostly established by a dedicated mechanical object alignment system. However, such systems are often dedicated...... to the particular object and in order to handle the demand for flexibility, there is an increasing demand for avoiding such dedicated mechanical alignment systems. Rather, it would be desirable to automatically locate and grasp randomly placed objects from tables, conveyor belts or even bins with a high accuracy...... that enables direct assembly. Conventional vision systems and laser triangulation systems can locate randomly placed known objects (with 3D CAD models available) with some accuracy, but not necessarily a good enough accuracy. In this paper, we present a novel method for refining the pose accuracy of an object...

  8. Comparing Syntactic and Semantics Action Refinement

    NARCIS (Netherlands)

    Goltz, Ursula; Gorrieri, Roberto; Rensink, Arend

    The semantic definition of action refinement on labelled configuration structures is compared with the notion of syntactic substitution, which can be used as another notion of action refinement in a process algebraic setting. The comparison is done by studying a process algebra equipped with

  9. On Syntactic and Semantic Action Refinement

    NARCIS (Netherlands)

    Hagiya, M.; Goltz, U.; Mitchell, J.C.; Gorrieri, R.; Rensink, Arend

    1994-01-01

    The semantic definition of action refinement on labelled event structures is compared with the notion of syntactic substitution, which can be used as another notion of action refinement in a process algebraic setting. This is done by studying a process algebra equipped with the ACP sequential

  10. Anomalies in the refinement of isoleucine

    Energy Technology Data Exchange (ETDEWEB)

    Berntsen, Karen R. M.; Vriend, Gert, E-mail: gerrit.vriend@radboudumc.nl [Radboud University Medical Center, Geert Grooteplein 26-28, 6525 GA Nijmegen (Netherlands)

    2014-04-01

    The side-chain torsion angles of isoleucines in X-ray protein structures are a function of resolution, secondary structure and refinement software. Detailing the standard torsion angles used in refinement software can improve protein structure refinement. A study of isoleucines in protein structures solved using X-ray crystallography revealed a series of systematic trends for the two side-chain torsion angles χ{sub 1} and χ{sub 2} dependent on the resolution, secondary structure and refinement software used. The average torsion angles for the nine rotamers were similar in high-resolution structures solved using either the REFMAC, CNS or PHENIX software. However, at low resolution these programs often refine towards somewhat different χ{sub 1} and χ{sub 2} values. Small systematic differences can be observed between refinement software that uses molecular dynamics-type energy terms (for example CNS) and software that does not use these terms (for example REFMAC). Detailing the standard torsion angles used in refinement software can improve the refinement of protein structures. The target values in the molecular dynamics-type energy functions can also be improved.

  11. Refinement Checking on Parametric Modal Transition Systems

    DEFF Research Database (Denmark)

    Benes, Nikola; Kretínsky, Jan; Larsen, Kim Guldstrand

    2015-01-01

    Modal transition systems (MTS) is a well-studied specification formalism of reactive systems supporting a step-wise refinement methodology. Despite its many advantages, the formalism as well as its currently known extensions are incapable of expressing some practically needed aspects in the refin...

  12. Refined large N duality for knots

    DEFF Research Database (Denmark)

    Kameyama, Masaya; Nawata, Satoshi

    We formulate large N duality of U(N) refined Chern-Simons theory with a torus knot/link in S³. By studying refined BPS states in M-theory, we provide the explicit form of low-energy effective actions of Type IIA string theory with D4-branes on the Ω-background. This form enables us to relate...

  13. Grain refinement of zinc-aluminium alloys

    International Nuclear Information System (INIS)

    Zaid, A.I.O.

    2006-01-01

    It is now well-established that the structure of the zinc-aluminum die casting alloys can be modified by the binary Al-Ti or the ternary Al-Ti-B master alloys. in this paper, grain refinement of zinc-aluminum alloys by rare earth materials is reviewed and discussed. The importance of grain refining of these alloys and parameters affecting it are presented and discussed. These include parameters related to the Zn-Al alloys cast, parameters related to the grain refining elements or alloys and parameters related to the process. The effect of addition of other alloying elements e.g. Zr either alone or in the presence of the main grain refiners Ti or Ti + B on the grain refining efficiency is also reviewed and discussed. Furthermore, based on the grain refinement and the parameters affecting it, a criterion for selection of the optimum grain refiner is suggested. Finally, the recent research work on the effect of grain refiners on the mechanical behaviour, impact strength, wear resistance, and fatigue life of these alloys are presented and discussed. (author)

  14. Anomalies in the refinement of isoleucine

    International Nuclear Information System (INIS)

    Berntsen, Karen R. M.; Vriend, Gert

    2014-01-01

    The side-chain torsion angles of isoleucines in X-ray protein structures are a function of resolution, secondary structure and refinement software. Detailing the standard torsion angles used in refinement software can improve protein structure refinement. A study of isoleucines in protein structures solved using X-ray crystallography revealed a series of systematic trends for the two side-chain torsion angles χ 1 and χ 2 dependent on the resolution, secondary structure and refinement software used. The average torsion angles for the nine rotamers were similar in high-resolution structures solved using either the REFMAC, CNS or PHENIX software. However, at low resolution these programs often refine towards somewhat different χ 1 and χ 2 values. Small systematic differences can be observed between refinement software that uses molecular dynamics-type energy terms (for example CNS) and software that does not use these terms (for example REFMAC). Detailing the standard torsion angles used in refinement software can improve the refinement of protein structures. The target values in the molecular dynamics-type energy functions can also be improved

  15. Wrinkling prediction with adaptive mesh refinement

    NARCIS (Netherlands)

    Selman, A.; Meinders, Vincent T.; van den Boogaard, Antonius H.; Huetink, Han

    2000-01-01

    An adaptive mesh refinement procedure for wrinkling prediction analyses is presented. First the critical values are determined using Hutchinson’s bifurcation functional. A wrinkling risk factor is then defined and used to determined areas of potential wrinkling risk. Finally, a mesh refinement is

  16. Zone refining of cadmium and related characterization

    Indian Academy of Sciences (India)

    We present the zone refining results of cadmium using horizontal resistive zone refiner under constant flow of moisture free hydrogen gas. The boron impurity in cadmium can be avoided using quartz (GE 214 grade) boat in lieu of high pure graphite boat. The analytical results using inductively coupled plasma optical ...

  17. Implementing and sustaining school-located influenza vaccination programs: perspectives from five diverse school districts.

    Science.gov (United States)

    Wilson, Dulmini; Sanchez, Kathleen M; Blackwell, Susan H; Weinstein, Eva; El Amin, A Nelson

    2013-08-01

    Local health departments have typically led school-located influenza vaccination (SLIV) programs, assuming resource-intensive roles in design, coordination, and vaccination. This level of involvement is often not financially sustainable over time. Five diverse school districts in Los Angeles County designed, implemented, refined, and institutionalized their own SLIV programs over 3 years by identifying and maximizing their existing resources. School district nurses and other staff served as project leaders, designing their own vaccination administration process, parental consent, and clinic promotional models. Two districts expanded their existing school immunization clinics and three developed their vaccination capacity with community partnerships. Each district tailored its program in creative resource-minimum ways, sometimes abandoning or adopting new methods/technologies based on the effectiveness in previous seasons. The shared experiences and strategies between district nurses and the local health department described in this article illustrate a district's ability to develop a tailor-made SLIV program, often in less than ideal conditions.

  18. NM Property Tax Districts

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This layer represents boundaries for New Mexico tax district "OUT" categories and incorporated/municipal "IN" categories as identified on the "Certificate of Tax...

  19. Allegheny County Council Districts

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset portrays the boundaries of the County Council Districts in Allegheny County. The dataset is based on municipal boundaries and City of Pittsburgh ward...

  20. Solid Waste Management Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — The Solid waste management districts layer is part of a dataset that contains administrative boundaries for Vermont's Agency of Natural Resources. This dataset...

  1. NM School District Boundaries

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The dataset represents the boundaries of all public school districts in the state of New Mexico. The source for the data layer is the New Mexico Public Education...

  2. ACT250 Districts

    Data.gov (United States)

    Vermont Center for Geographic Information — The ACT 250 Districts layer is part of a larger dataset that contains administrative boundaries for Vermont's Agency of Natural Resources. The dataset includes...

  3. 115th Congressional Districts

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This layer depicts the 115th Congressional Districts for the United States, with attributes listing the elected officials for the 115th Congress. Elected to a...

  4. Floodplain District Permit

    Data.gov (United States)

    Montgomery County of Maryland — The purpose of a Floodplain District Permit (FPDP) is to control floodplain development in order to protect persons and property from danger and destruction and to...

  5. Groundwater Managment Districts

    Data.gov (United States)

    Kansas Data Access and Support Center — This dataset outlines the location of the five Groundwater Management Districts in Kansas. GMDs are locally formed and elected boards for regional groundwater...

  6. Refined Phenotyping of Modic Changes

    Science.gov (United States)

    Määttä, Juhani H.; Karppinen, Jaro; Paananen, Markus; Bow, Cora; Luk, Keith D.K.; Cheung, Kenneth M.C.; Samartzis, Dino

    2016-01-01

    Abstract Low back pain (LBP) is the world's most disabling condition. Modic changes (MC) are vertebral bone marrow changes adjacent to the endplates as noted on magnetic resonance imaging. The associations of specific MC types and patterns with prolonged, severe LBP and disability remain speculative. This study assessed the relationship of prolonged, severe LBP and back-related disability, with the presence and morphology of lumbar MC in a large cross-sectional population-based study of Southern Chinese. We addressed the topographical and morphological dimensions of MC along with other magnetic resonance imaging phenotypes (eg, disc degeneration and displacement) on the basis of axial T1 and sagittal T2-weighted imaging of L1-S1. Prolonged severe LBP was defined as LBP lasting ≥30 days during the past year, and a visual analog scale severest pain intensity of at least 6/10. An Oswestry Disability Index score of 15% was regarded as significant disability. We also assessed subject demographics, occupation, and lifestyle factors. In total, 1142 subjects (63% females, mean age 53 years) were assessed. Of these, 282 (24.7%) had MC (7.1% type I, 17.6% type II). MC subjects were older (P = 0.003), had more frequent disc displacements (P disability. The strength of the associations increased with the number of MC. This large-scale study is the first to definitively note MC types and specific morphologies to be independently associated with prolonged severe LBP and back-related disability. This proposed refined MC phenotype may have direct implications in clinical decision-making as to the development and management of LBP. Understanding of these imaging biomarkers can lead to new preventative and personalized therapeutics related to LBP. PMID:27258491

  7. Protein NMR structures refined without NOE data.

    Science.gov (United States)

    Ryu, Hyojung; Kim, Tae-Rae; Ahn, SeonJoo; Ji, Sunyoung; Lee, Jinhyuk

    2014-01-01

    The refinement of low-quality structures is an important challenge in protein structure prediction. Many studies have been conducted on protein structure refinement; the refinement of structures derived from NMR spectroscopy has been especially intensively studied. In this study, we generated flat-bottom distance potential instead of NOE data because NOE data have ambiguity and uncertainty. The potential was derived from distance information from given structures and prevented structural dislocation during the refinement process. A simulated annealing protocol was used to minimize the potential energy of the structure. The protocol was tested on 134 NMR structures in the Protein Data Bank (PDB) that also have X-ray structures. Among them, 50 structures were used as a training set to find the optimal "width" parameter in the flat-bottom distance potential functions. In the validation set (the other 84 structures), most of the 12 quality assessment scores of the refined structures were significantly improved (total score increased from 1.215 to 2.044). Moreover, the secondary structure similarity of the refined structure was improved over that of the original structure. Finally, we demonstrate that the combination of two energy potentials, statistical torsion angle potential (STAP) and the flat-bottom distance potential, can drive the refinement of NMR structures.

  8. Price implications for Russia's oil refining

    International Nuclear Information System (INIS)

    Khartukov, Eugene M.

    1998-01-01

    Over the past several years, Russia's oil industry has undergone its radical transformation from a wholly state-run and generously subsidized oil distribution system toward a substantially privatized, cash-strapped, and quasi-market ''petropreneurship''. This fully applies to the industry's downstream sector. Still unlike more dynamic E and C operations, the country's refining has turned out better fenced off competitive market forces and is less capable to respond to market imperatives. Consequently, jammed between depressed product prices and persistent feedstock costs, Russian refiners were badly hit by the world oil glut - which has made a radical modernization of the obsolete refining sector clearly a must. (author)

  9. A PRODUÇÃO LEITEIRA DO MUNICÍPIO DE BOM DESPACHO – MG: UMA ANÁLISE DE PREÇOS E CUSTOS

    Directory of Open Access Journals (Sweden)

    Hilton Manoel Dias Ribeiro

    2014-08-01

    Full Text Available O segmento de produção de leite brasileiro é um dos destaques em termos de produção e competitividade internacional. O presente estudo é parte de um diagnóstico realizado no município de Bom Despacho cujo foco foi a identificação dos principais gargalos enfrentados pelos produtores de gado de leite da região. Desta forma, vale destacar aqui alguns resultados relevantes: não há um controle eficiente de custos por parte dos produtores e os preços pagos ao produtor estão aquém dos preços médios estaduais. Assim, fica claro que, apesar do potencial produtivo, os produtores de leite podem estar tendo prejuízos pela má administração da propriedade e ainda podem estar sendo desestimulados a investirem no trabalho visto que os preços recebidos por estes estão abaixo da média.

  10. Comparação da quiropterofauna em área florestada e área aberta da RPPN Fazenda Bom Retiro, Rio de Janeiro, Brasil

    Directory of Open Access Journals (Sweden)

    Luis F. Menezes Jr

    2015-09-01

    Full Text Available RESUMO Foram realizadas dez coletas em 2013 na RPPN Fazenda Bom Retiro, sendo cinco em uma área florestada, localizada no interior da mata e outras cinco em área aberta, distante cerca de 600 m uma da outra. O mesmo esforço de coleta foi empregado nas duas áreas, e as mesmas foram realizadas sempre no mesmo dia. A área florestada se mostrou mais diversa, sendo capturados 256 morcegos, todos de Phyllostomidae, pertencentes a 14 espécies; Carollia perspicillata (n=112, Sturnira lilium(n=46 e Desmodus rotundus (n=25 foram as mais capturadas. Na área aberta foram capturados 153 espécimes pertencentes a quatro famílias, Phyllostomidae, Noctilidae, Vespertilionidae e Molossidae, sendo registradas 10 espécies; Carollia perspicillata (n=52, Desmodus rotundus (n=39 e Artibeus lituratus (n=24 foram as mais capturadas. Observou-se maior diversidade na área florestada (Hʼ 1,812, onde devem existir mais recursos e abrigos, e, consequentemente mais proteção.

  11. Análise econômica de produção de mudas do cerrado em Bom Jesus – PI

    Directory of Open Access Journals (Sweden)

    Edson de Oliveira Santos

    2013-12-01

    Full Text Available Analisou-se, nopresente trabalho, a viabilidade econômica de implantação de um viveiroflorestal especializado em mudas nativas da região Sul do estado do Piauí,especificamente na cidade de Bom Jesus. A análise de viabilidade econômica foifeita com base na previsão de receitas e despesas do negócio, tendo sidoavaliados a lucratividade, rentabilidade, prazo do retorno do investimento,ponto de equilíbrio, valor presente líquido (VPL, taxa interna de retorno(TIR e relação benefício/custo (B/C. Por meio da análise dos resultados,concluiu-se que o projeto é viável economicamente, sendo a lucratividade de16,01 %; a rentabilidade de 19,06 % e o prazo de retorno do investimento de 7meses. A TIR apresentada foi de 57,02%; o VPL foi de R$168.498,17e a B/C foi de1,15.

  12. Discreto personagem do império brasileiro: Luís Pedreira do Couto Ferraz, visconde do Bom Retiro (1818-1886

    Directory of Open Access Journals (Sweden)

    Begonha Bediaga

    Full Text Available RESUMO Analisa a trajetória de Luís Pedreira do Couto Ferraz, visconde do Bom Retiro e personagem da alta governança do Segundo Reinado, que, a despeito de sua participação em política e administração durante mais de 40 anos, ainda é pouco referido na historiografia. Couto Ferraz foi presidente de duas províncias, deputado em diversas legislaturas, ministro no Gabinete da Conciliação, senador e membro do Conselho de Estado, além de ter atuado na direção de diversas instituições. Destaca-se seu papel de amigo e confidente de Pedro II e propõe-se que sua discrição buscava ao mesmo tempo preservar o monarca e garantir proximidade e influência no poder, muitas vezes de forma indireta e pouco perceptível.

  13. Development of a Refined Staff Group Trainer

    National Research Council Canada - National Science Library

    Quensel, Susan

    1999-01-01

    .... As a follow-on effort to the previous SGT project, the goal was to refine a brigade-level staff training program to more effectively and efficiently coordinate the activities within and between the...

  14. A Refinement Method for Java Programs

    OpenAIRE

    Grandy, Holger; Stenzel, Kurt; Reif, Wolfgang (Prof. Dr.)

    2006-01-01

    We present a refinement method for Java programs which is motivated by the challenge of verifying security protocol implementations. The method can be used for stepwise refinement of abstract specifications down to the level of code running in the real application. The approach is based on a calculus for the verification of Java programs for the concrete level and Abstract State Machines for the abstract level. In this paper we illustrate our approach with the verification of a MCommerce appl...

  15. Palinologia holocênica do testemunho Bom Jesus, margem leste da ilha do Marajó, Pará, Amazônia Palynological study of Holocene sediments of Bom Jesus core, east margin of the Marajó Island, Pará, Amazonia

    Directory of Open Access Journals (Sweden)

    Lívia Cardoso da Silva Rodrigues

    2011-03-01

    Full Text Available A porção superior (1,25m do testemunho de sondagem Bom Jesus (TBJ, coletado no limite campo-mangue da Fazenda Bom Jesus, município de Soure, ilha do Marajó, Pará, Brasil, foi estudada através de análise palinológica de alta resolução objetivando a determinação da composição, abundância e diversidade de tipos polínicos bioindicadores de modificações na paleovegetação durante o Holoceno. 16 amostras sedimentares de 2cm³ foram tratadas de acordo com metodologia padrão em palinologia. Os programas Tilia e Tilia Graph foram utilizados para a construção dos diagramas palinológicos de abundância e concentração. A base do testemunho foi datada por 14C em 2730 ± 40 anos A.P. Foram definidas três zonas palinológicas. A presença de pólen de Rhizophora com abundância máxima de 88% apontou dominância de mangue ao longo de todo o testemunho sedimentar. Variações recorrentes na hidrodinâmica da baía do Marajó, caracterizadas por pulsos erosivos de curto período, parecem ter provocado redução na dominância de mangue. O incremento na abundância de tipos polínicos bioindicadores de campo inundável associados a elementos de restinga e floresta, evidenciam a migração do campo inundável sobre o manguezal. Os dados indicam correlação com outros registros polínicos holocênicos de transgressão marinha para a costa norte amazônica no Holoceno Superior.The upper portion (1.25 m of the sediment core Bom Jesus (TBJ, was collected in the field-mangrove limit of Bom Jesus Farm, municipality of Soure, island of Marajó, Pará, Brazil, was studied through pollen analysis high resolution aimed at determining the composition, abundance and diversity of the pollen types bioindicators of changes in the palaeobotany. 16 samples of sedimentary 2cm³ were treated according to standard methodology. Tilia and Tilia Graph software were used for to construct abundance and concentration palinological diagrams. The core base was

  16. Structure refinement from precession electron diffraction data.

    Science.gov (United States)

    Palatinus, Lukáš; Jacob, Damien; Cuvillier, Priscille; Klementová, Mariana; Sinkler, Wharton; Marks, Laurence D

    2013-03-01

    Electron diffraction is a unique tool for analysing the crystal structures of very small crystals. In particular, precession electron diffraction has been shown to be a useful method for ab initio structure solution. In this work it is demonstrated that precession electron diffraction data can also be successfully used for structure refinement, if the dynamical theory of diffraction is used for the calculation of diffracted intensities. The method is demonstrated on data from three materials - silicon, orthopyroxene (Mg,Fe)(2)Si(2)O(6) and gallium-indium tin oxide (Ga,In)(4)Sn(2)O(10). In particular, it is shown that atomic occupancies of mixed crystallographic sites can be refined to an accuracy approaching X-ray or neutron diffraction methods. In comparison with conventional electron diffraction data, the refinement against precession diffraction data yields significantly lower figures of merit, higher accuracy of refined parameters, much broader radii of convergence, especially for the thickness and orientation of the sample, and significantly reduced correlations between the structure parameters. The full dynamical refinement is compared with refinement using kinematical and two-beam approximations, and is shown to be superior to the latter two.

  17. Design of Grain Refiners for Aluminium Alloys

    Science.gov (United States)

    Tronche, A.; Greer, A. L.

    The efficiency of a grain refiner can be quantified as the number of grains per nucleant particle in the solidified product. Even for effective refiners in aluminium, such as Al-5Ti-1B, it is known from experiments that efficiencies are very low, at best 10-3 to 102. It is of interest to explore the reasons for such low values, and to assess the prospects for increased efficiency though design of refiners. Recently it has been shown [1] that a simple recalescence-based model can make quantitative predictions of grain size as a function of refiner addition level, cooling rate and solute content. In the model, the initiation of grains is limited by the free growth from nucleant particles, the size distribution of which is very important. The present work uses this model as the basis for discussing the effect of particle size distribution on grain refiner performance. Larger particles (of TiB2 in the case of present interest) promote greater efficiency, as do narrower size distributions. It is shown that even if the size distribution could be exactly specified, compromises would have to be made to balance efficiency (defined as above) with other desirable characteristics of a refiner.

  18. Future trends in the refining catalyst market

    International Nuclear Information System (INIS)

    Silvy, Ricardo Prada

    2004-01-01

    The oil refining industry operation is analyzed in order to estimate the future catalyst market trends. The refining catalyst market corresponding to the main catalytic processes is estimated taking into account the following information: (1) the average refining capacity increases for the main catalytic processes since 1999, (2) the additional refining capacity due to future plans of construction and expansion of refineries and process units that will be added by 2005, and (3) the past refining catalyst market behavior. From this information, we have determined for the main catalytic processes a global average factor, expressed as processed oil barrels per dollar of catalyst. According to our estimates, the global refining catalyst market will increase from $2.32 billion in 2001 to about $2.65 billion in 2005 (3.6% annual growth). Hydrotreating, fluid catalytic cracking, hydrocracking and isomerization represent about 74% of the total catalyst market and will grow by about $34, $32, $11 and $2.5 million per year, respectively. However, naphtha reforming catalyst market will not grow during 2001-2005. Higher catalyst spending growth is expected for the North America region ($27.5 million per year)

  19. Ocupações ilegais em unidades de conservação na Amazônia: o caso da Floresta Nacional do Bom Futuro no Estado de Rondônia/Brasil

    Directory of Open Access Journals (Sweden)

    Gean Costa

    2015-12-01

    Full Text Available O objetivo deste trabalho é identificar as flexibilidades institucionais a partir da incoerência entre o uso planejado e o uso efetivo na unidade de conservação (UC da Floresta Nacional (FLONA do Bom Futuro, localizada no município de Porto Velho, Rondônia, Amazônia, Brasil. A metodologia adotada consistiu no levantamento dos instrumentos normativos (Leis e Decretos que regem a UC, bem como aquisição de imagens de satélite Landsat-05 e Landsat-08 dos anos 1988, 1997, 2006 e 2014. A flexibilidade institucional identificada na FLONA do Bom Futuro foi motivada por fatores relacionados com as ocupações irregulares, desmatamento e redução dos limites como resultado do problema de antropização, demonstrando ausência de gestão e comprometimento da área a partir dos novos usos impostos.

  20. Empowerment Zones and Enterprise Districts - MDC_CommunityDevelopmentDistrict

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — Community Development Districts (CDDs) are special taxing districts or local units of special-purpose government. A CDD may charge separate non-ad valorem special...

  1. Interim district energy implementation

    Energy Technology Data Exchange (ETDEWEB)

    Fearnley, R.; Susak, W. [City of Vancouver, BC (Canada); Johnstone, I. [BCG Services Inc., Vancouver, BC (Canada)

    2001-07-01

    The concept of district energy was introduced in the City of North Vancouver, a city of 45,000, in 1997. A preliminary study was completed in 1997, followed by a tour of some district energy facilities in Finland in the same year. In 1999 a large district energy study was completed by a consultant. The study indicated the need for an investment of $15 million to implement district heating in the City. Lack of sufficient financial resources and immediately connectable heat load, the project was considered a non-starter. Some of the other factors leading to shelving the project included no current significant pricing advantages over competing energy sources and no current opportunity for cogeneration, given the low price that BC Hydro is willing to pay for independently produced power. The project, although shelved for the moment, has not been discarded. Planning and exploration are continuing, aided by the City's commitment to energy efficiency and conservation, its long term planning horizon and its significant influence over the development of some prime real estate.

  2. Districts Tackling Meal Debt

    Science.gov (United States)

    Shah, Nirvi

    2012-01-01

    School districts have resorted to hiring debt collectors, employing constables, and swapping out standard meals for scaled-back versions to try to coerce parents to pay off school lunch debt that, in recent years, appears to have surged as the result of a faltering economy and better record-keeping. While the average school lunch costs just about…

  3. School District Spending.

    Science.gov (United States)

    Minnesota State Office of the Legislative Auditor, St. Paul. Program Evaluation Div.

    Minnesota spends more for education than most states and has increased its financial commitment steadily over the past 15 years. Because of the state's dominant role in education funding, legislators have enacted measures requiring all local school districts to follow uniform financial accounting and reporting standards (UFARS). Since 1980, the…

  4. State Highway District Boundaries - 2004

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data represents the NM Department of Transportation District boundaries as legislatively defined (i.e. these are not maintenance defined districts).

  5. New Mexico State Forestry Districts

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This dataset contains boundaries of the New Mexico Forestry Districts, plus the names of the district offices. It is in a vector digital structure digitized from a...

  6. Implementing and Sustaining School-Located Influenza Vaccination Programs: Perspectives from Five Diverse School Districts

    Science.gov (United States)

    Wilson, Dulmini; Sanchez, Kathleen M.; Blackwell, Susan H.; Weinstein, Eva; El Amin, A. Nelson

    2013-01-01

    Local health departments have typically led school-located influenza vaccination (SLIV) programs, assuming resource-intensive roles in design, coordination, and vaccination. This level of involvement is often not financially sustainable over time. Five diverse school districts in Los Angeles County designed, implemented, refined, and…

  7. Problems of Affluent School Districts.

    Science.gov (United States)

    McLoone, Eugene P.

    All school districts are affected by the stagnant economy, the growing needs of the public sector, the increased burden of transfer payments, and the limited growth of public revenues. Retrenchment is common to all school districts, but it may be more severe in affluent districts. By 1969-70, suburban school systems were the clear-cut expenditure…

  8. Grain refinement mechanism in A3003 alloy

    International Nuclear Information System (INIS)

    Cho, Hoon; Shin, Je-Sik; Lee, Byoung-Soo; Jo, Hyung-Ho

    2009-01-01

    In the present study, in order to find out an grain refinement mechanism, 0.1wt.% Al-10wt.%Ti master alloy was added into A3003 alloy melt contained in graphite crucible and in alumina crucible, and then the melt holding time at 750 deg. C was systematically changed from 1 min up to 120 min. It is interesting to note that the grain refinement and fading phenomena remarkably depend on the crucible material. The fading effect in the specimens using alumina crucible can be explained as the result of TiAl 3 phase dissolution into molten aluminium matrix. In the specimens using graphite crucible, the grain refinement was occurred gradually with increasing holding time. It was suggest that the continuous grain refinement is due to transition of refinement mechanism from TiAl 3 phase to TiC phase. It can be mentioned that the TiC formed from titanium and carbon solute in the aluminium melt, which came from the Al-10Ti alloy and the graphite crucible.

  9. Adubação orgânica e intensidade luminosa no crescimento e desenvolvimento inicial da Pitaya em Bom Jesus-PI

    Directory of Open Access Journals (Sweden)

    Ítalo Herbert Lucena Cavalcante

    2011-09-01

    Full Text Available A pitaya é uma cactácea de sub-bosque, originária de florestas tropicais do México e das Américas Central e do Sul, pouco estudada no Brasil, principalmente quanto à sua resposta à intensidade luminosa e adubação. Nesse sentido, realizou-se um experimento objetivando avaliar crescimento e desenvolvimento inicial da pitaya em função da intensidade luminosa e adubação orgânica. O delineamento experimental adotado foi em blocos casualizados, com tratamentos distribuídos em esquema fatorial 5 x 3, referentes, respectivamente, aos níveis de adubação orgânica (0; 5; 10; 20 e 30 L de esterco bovino cova-1 e aos percentuais de luz (0; 50 e 75% de sombreamento, com quatro repetições. Foram avaliados semanalmente diâmetro do cladódio (mm, altura de estacas (cm e comprimento do ramo secundário (cm; ao final do experimento, massa fresca da parte aérea e massas secas de raiz e parte aérea (g, sendo que para as variáveis mensuradas, semanalmente, foram calculados os respectivos incrementos percentuais semanais. Segundo os resultados do presente trabalho, no cultivo da pitaya, é necessário o uso de cobertura contra a incidência direta dos raios solares, onde as estruturas com 50% ou 75% de luminosidade podem ser usadas. O fornecimento de 20 L cova-1 de esterco bovino pode ser adotado como quantitativo no preparo de covas de pitaya, nas condições de clima e solo de Bom Jesus-PI.

  10. Model refinement for offshore platforms: Experimental study

    Science.gov (United States)

    Zhang, Min; Chen, Zongli; Wu, Yanjian

    2017-08-01

    Offshore jacket platforms are widely used in offshore oil and gas exploitation. Finite element models of such structures need to have many degrees of freedom (DOFs) to represent the geometrical detail of complex structures, thereby leading to incompatibility in the number of DOFs of experimental models. To bring them both to the same order while ensuring that the essential eigen- properties of the refined model match those of experimental models, an extended model refinement procedure is presented in this paper. Vibration testing of an offshore jacket platform model is performed to validate the applicability of the proposed approach. A full-order finite element model of the platform is established and then tuned to meet the measured modal properties identified from the acceleration signals. Both model reduction and modal expansion methods are investigated, as well as various scenarios of sensor arrangements. Upon completion of the refinement, the updated jacket platform model matches the natural frequencies of the measured model well.

  11. India's refining prospects linked to economic growth

    International Nuclear Information System (INIS)

    Lewis, E.

    1996-01-01

    International investors assess refining ventures in India the same way they do comparable projects elsewhere in the world: according to their expectations about investment returns. By that standard, India's appeal is mixed, although its need for some measure of additional refining capacity seems certain. The success of future refinery investments will depend heavily on the government's commitment to policies allowing the economy to grow faster than the population. Unless accompanied by economic growth, expected increases in the population will not automatically raise demand for petroleum products. Decisions about investments in India's refining sector, therefore, must carefully weigh market fundamentals, the business environment, and likely investment performance. This paper reviews the market for the various products and predicts new economic trends

  12. Refining Linear Fuzzy Rules by Reinforcement Learning

    Science.gov (United States)

    Berenji, Hamid R.; Khedkar, Pratap S.; Malkani, Anil

    1996-01-01

    Linear fuzzy rules are increasingly being used in the development of fuzzy logic systems. Radial basis functions have also been used in the antecedents of the rules for clustering in product space which can automatically generate a set of linear fuzzy rules from an input/output data set. Manual methods are usually used in refining these rules. This paper presents a method for refining the parameters of these rules using reinforcement learning which can be applied in domains where supervised input-output data is not available and reinforcements are received only after a long sequence of actions. This is shown for a generalization of radial basis functions. The formation of fuzzy rules from data and their automatic refinement is an important step in closing the gap between the application of reinforcement learning methods in the domains where only some limited input-output data is available.

  13. VII international district heating conference

    International Nuclear Information System (INIS)

    1988-01-01

    The proceedings of the 7th International District Heating Conference contain the full texts of the 89 presented papers of which 11 fall under the INIS Subject Scope. The conference met in seven sessions and dealt with the following problem areas: design and optimization of systems of district heating, integration of the power system and the district heating systems, cooperation of nuclear and fossil burning sources in district heating systems, the use of specific nuclear power plants for heating purposes, questions of the control of systems of district heating, the development of components of heating networks, the reliability and design of heat supply pipes. (Z.M.)

  14. District energy a global solution

    Energy Technology Data Exchange (ETDEWEB)

    Damecour, R.; Andersson, B. [Kattner/FVB District Energy Inc., Toronto, ON (Canada)

    1999-08-01

    An overview of the development of district energy systems throughout the world is provided. Significant district energy data is provided for Canada, the United States, East Asia, Korea, Japan, China, Eastern Europe and Russia, Estonia, and Sweden. The overall conclusion is that district energy systems are here to stay and have a good chance of succeeding provided that the concept has the support of business, municipalities and national governments. The 40 years old district heating system in Vasteras, Sweden, the oldest and most successful district energy system in the world, was highlighted.

  15. Using supercritical fluids to refine hydrocarbons

    Science.gov (United States)

    Yarbro, Stephen Lee

    2015-06-09

    A system and method for reactively refining hydrocarbons, such as heavy oils with API gravities of less than 20 degrees and bitumen-like hydrocarbons with viscosities greater than 1000 cp at standard temperature and pressure, using a selected fluid at supercritical conditions. A reaction portion of the system and method delivers lightweight, volatile hydrocarbons to an associated contacting unit which operates in mixed subcritical/supercritical or supercritical modes. Using thermal diffusion, multiphase contact, or a momentum generating pressure gradient, the contacting unit separates the reaction products into portions that are viable for use or sale without further conventional refining and hydro-processing techniques.

  16. Contextual Distance Refining for Image Retrieval

    KAUST Repository

    Islam, Almasri

    2014-09-16

    Recently, a number of methods have been proposed to improve image retrieval accuracy by capturing context information. These methods try to compensate for the fact that a visually less similar image might be more relevant because it depicts the same object. We propose a new quick method for refining any pairwise distance metric, it works by iteratively discovering the object in the image from the most similar images, and then refine the distance metric accordingly. Test show that our technique improves over the state of art in terms of accuracy over the MPEG7 dataset.

  17. India beckons participants in burgeoning refining sector

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This paper reports that India has opened its refining sector to full private investment for the first time in more than 2 decades. The government again gave a green light to construction of three 120,000 b/d grassroots refineries in East, West, and Central India. The projects had won various governmental approvals in the past few years, but never moved off high center for a variety of economic and regulatory reasons. The difference this time is that the government is offering interests in the projects to private foreign and domestic investors. It's part of India's push to boost overall refining capacity by more than 80% this century

  18. Zone refining high-purity germanium

    International Nuclear Information System (INIS)

    Hubbard, G.S.; Haller, E.E.; Hansen, W.L.

    1977-10-01

    The effects of various parameters on germanium purification by zone refining have been examined. These parameters include the germanium container and container coatings, ambient gas and other operating conditions. Four methods of refining are presented which reproducibly yield 3.5 kg germanium ingots from which high purity (vertical barN/sub A/ - N/sub D/vertical bar less than or equal to2 x 10 10 cm -3 ) single crystals can be grown. A qualitative model involving binary and ternary complexes of Si, O, B, and Al is shown to account for the behavior of impurities at these low concentrations

  19. Refining - Panorama 2008; Raffinage - Panorama 2008

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    Investment rallied in 2007, and many distillation and conversion projects likely to reach the industrial stage were announced. With economic growth sustained in 2006 and still pronounced in 2007, oil demand remained strong - especially in emerging countries - and refining margins stayed high. Despite these favorable business conditions, tensions persisted in the refining sector, which has fallen far behind in terms of investing in refinery capacity. It will take renewed efforts over a long period to catch up. Looking at recent events that have affected the economy in many countries (e.g. the sub-prime crisis), prudence remains advisable.

  20. Adaptive mesh refinement for storm surge

    KAUST Repository

    Mandli, Kyle T.

    2014-03-01

    An approach to utilizing adaptive mesh refinement algorithms for storm surge modeling is proposed. Currently numerical models exist that can resolve the details of coastal regions but are often too costly to be run in an ensemble forecasting framework without significant computing resources. The application of adaptive mesh refinement algorithms substantially lowers the computational cost of a storm surge model run while retaining much of the desired coastal resolution. The approach presented is implemented in the GeoClaw framework and compared to ADCIRC for Hurricane Ike along with observed tide gauge data and the computational cost of each model run. © 2014 Elsevier Ltd.

  1. Computing Refined Buneman Trees in Cubic Time

    DEFF Research Database (Denmark)

    Brodal, G.S.; Fagerberg, R.; Östlin, A.

    2003-01-01

    in the underlying distance data. Distance based methods based on the theory of Buneman trees and refined Buneman trees avoid this problem by only proposing evolutionary trees whose edges satisfy a number of constraints. These trees might not be fully resolved but there is strong combinatorial evidence for each...... proposed edge. The currently best algorithm for computing the refined Buneman tree from a given distance measure has a running time of O(n 5) and a space consumption of O(n 4). In this paper, we present an algorithm with running time O(n 3) and space consumption O(n 2). The improved complexity of our...

  2. Image segmentation by background extraction refinements

    Science.gov (United States)

    Rodriguez, Arturo A.; Mitchell, O. Robert

    1990-01-01

    An image segmentation method refining background extraction in two phases is presented. In the first phase, the method detects homogeneous-background blocks and estimates the local background to be extracted throughout the image. A block is classified homogeneous if its left and right standard deviations are small. The second phase of the method refines background extraction in nonhomogeneous blocks by recomputing the shoulder thresholds. Rules that predict the final background extraction are derived by observing the behavior of successive background statistical measurements in the regions under the presence of dark and/or bright object pixels. Good results are shown for a number of outdoor scenes.

  3. A REFINING METHOD FOR BUILDING OBJECT AGGREGATION AND FOOTPRINT MODELLING USING MULTI-SOURCE DATA

    Directory of Open Access Journals (Sweden)

    Y. Li

    2012-07-01

    Full Text Available Automatically detection, extraction and re-construction of 3D building modelling are difficult yet potentially high-payoff challenges for photogrammetric applications. Solution usually requires integrating various sources, including LIDAR, imagery, and digital surface models (DSM. However, highly automated and robust geometric modelling remains unsolved. We will present a 2D modelling technique which represents a building’s outline in an as-is way. It gives visually accurate corners and lines for buildings. Aerial remotely sensed imagery and a DSM are used to detect and segment building masks. A refining footprint modelling is implemented through line modelling, edge refining, and segment merging and generating. A district grouping based main orientation algorithm is proposed. This approach has the ability of successive improvement, moving from a prototype to a subtle end product. Experiments with Japanese data show that the models generated automatically fit the manual models very well.

  4. Pilot scale refinning of crude soybean oil | Mensah | Journal of ...

    African Journals Online (AJOL)

    Pilot scale refinning of crude soybean oil. ... Abstract. A laboratory process for refining soybean has been scaled up to a 145 tonne per annum pilot plant to refine crude soybean oil. ... The quality of the refined oil was found to be within national and codex standard specifications for edible oil from vegetable sources.

  5. On Syntactic and Semantic Action Refinement

    NARCIS (Netherlands)

    Goltz, Ursula; Gorrieri, Roberto; Rensink, Arend

    1992-01-01

    The semantic definition of action refinement on labelled event structures is compared with the notion of syntactic substitution,which can be used as another notion of action refiment in a process algebraic setting. This is done by studying a process algebra equipped with the ACP sequential

  6. Individualism-Collectivism: Critique and Proposed Refinements.

    Science.gov (United States)

    Schwartz, Shalom H.

    1990-01-01

    Argues that the individualism-collectivism dichotomy overlooks values that inherently serve both individual and collective interests, ignores values that foster the goals of collectives other than the ingroup, and promotes the mistaken assumption that individualist and collectivist values form opposing syndromes. Suggests refined value types. (FMW)

  7. Evolution and Refinement with Endogenous Mistake Probabilities

    NARCIS (Netherlands)

    van Damme, E.E.C.; Weibull, J.

    1999-01-01

    Bergin and Lipman (1996) show that the refinement effect from the random mutations in the adaptive population dynamics in Kandori, Mailath and Rob (1993) and Young (1993) is due to restrictions on how these mutation rates vary across population states. We here model mutation rates as endogenously

  8. Quantum Geometry of Refined Topological Strings

    NARCIS (Netherlands)

    Aganagic, M.; Cheng, M.C.N.; Dijkgraaf, R.; Kreft, D.; Vafa, C.

    2012-01-01

    We consider branes in refined topological strings. We argue that their wavefunctions satisfy a Schrödinger equation depending on multiple times and prove this in the case where the topological string has a dual matrix model description. Furthermore, in the limit where one of the equivariant

  9. Oil refining expansion criteria for Brazil

    International Nuclear Information System (INIS)

    Tavares, M.E.E.; Szklo, A.S.; Machado, G.V.; Schaeffer, R.; Mariano, J.B.; Sala, J.F.

    2006-01-01

    This paper assesses different strategies for the expansion of Brazil's oil refining segment, using criteria that range from energy security (reducing imports and vulnerability for key products) through to maximizing the profitability of this sector (boosting the output of higher value oil products) and adding value to Brazil's oil production (reducing exports of heavy acid oil). The development prospects are analyzed for conventional fuel production technology routes, sketching out three possible refining schemes for Brazilian oil and a GTL plant for producing gasoil from natural gas. Market scenario simulations indicate that investments will be required in Brazil's oil refining segment over and above those allocated to planned modifications in its current facilities, reducing the nation's vulnerability in terms of gasoil and petrochemical naphtha imports. Although not economically attractive, oil refining is a key activity that is crucial to oil company strategies. The decision to invest in this segment depends on local infrastructure conditions, environmental constraints and fuel specifications, in addition to oil company strategies, steady growth in demand and the definition of a government policy that eases institutional risks. (author)

  10. Oil refining expansion criteria for Brazil

    International Nuclear Information System (INIS)

    Tavares, Marina Elisabete Espinho; Szklo, Alexandre Salem; Machado, Giovani Vitoria; Schaeffer, Roberto; Mariano, Jacqueline Barboza; Sala, Janaina Francisco

    2006-01-01

    This paper assesses different strategies for the expansion of Brazil's oil refining segment, using criteria that range from energy security (reducing imports and vulnerability for key products) through to maximizing the profitability of this sector (boosting the output of higher value oil products) and adding value to Brazil's oil production (reducing exports of heavy acid oil). The development prospects are analyzed for conventional fuel production technology routes, sketching out three possible refining schemes for Brazilian oil and a GTL plant for producing gasoil from natural gas. Market scenario simulations indicate that investments will be required in Brazil's oil refining segment over and above those allocated to planned modifications in its current facilities, reducing the nation's vulnerability in terms of gasoil and petrochemical naphtha imports. Although not economically attractive, oil refining is a key activity that is crucial to oil company strategies. The decision to invest in this segment depends on local infrastructure conditions, environmental constraints and fuel specifications, in addition to oil company strategies, steady growth in demand and the definition of a government policy that eases institutional risks

  11. Refinement from a control problem to program

    DEFF Research Database (Denmark)

    Schenke, Michael; Ravn, Anders P.

    1996-01-01

    The distinguishing feature of the presented refinement approach is that it links formalisms from a top level requirements notation down to programs together in a mathematically coherent development trajectory. The approach uses Duration Calculus, a real-time interval logic, to specifyrequirements...

  12. Structural refinement and coarsening in deformed metals

    DEFF Research Database (Denmark)

    Hansen, N.; Huang, X.; Xing, Q.

    2005-01-01

    The microstructural refinement by plastic deformation is analysed in terms of key parameters, the spacing between and the misorientation angle across the boundaries subdividing the structure. Coarsening of such structures by annealing is also characterised. For both deformed and annealed structures...

  13. Refining the Eye: Dermatology and Visual Literacy

    Science.gov (United States)

    Zimmermann, Corinne; Huang, Jennifer T.; Buzney, Elizabeth A.

    2016-01-01

    In 2014 the Museum of Fine Arts Boston and Harvard Medical School began a partnership focused on building visual literacy skills for dermatology residents in the Harvard Combined Dermatology Residency Program. "Refining the Eye: Art and Dermatology", a four session workshop, took place in the museum's galleries and utilized the Visual…

  14. Refinement of the concept of uncertainty.

    Science.gov (United States)

    Penrod, J

    2001-04-01

    To analyse the conceptual maturity of uncertainty; to develop an expanded theoretical definition of uncertainty; to advance the concept using methods of concept refinement; and to analyse congruency with the conceptualization of uncertainty presented in the theory of hope, enduring, and suffering. Uncertainty is of concern in nursing as people experience complex life events surrounding health. In an earlier nursing study that linked the concepts of hope, enduring, and suffering into a single theoretical scheme, a state best described as 'uncertainty' arose. This study was undertaken to explore how this conceptualization fit with the scientific literature on uncertainty and to refine the concept. Initially, a concept analysis using advanced methods described by Morse, Hupcey, Mitcham and colleagues was completed. The concept was determined to be partially mature. A theoretical definition was derived and techniques of concept refinement using the literature as data were applied. The refined concept was found to be congruent with the concept of uncertainty that had emerged in the model of hope, enduring and suffering. Further investigation is needed to explore the extent of probabilistic reasoning and the effects of confidence and control on feelings of uncertainty and certainty.

  15. Red refinements of simplices into congruent subsimplices

    Czech Academy of Sciences Publication Activity Database

    Korotov, S.; Křížek, Michal

    2014-01-01

    Roč. 67, č. 12 (2014), s. 2199-2204 ISSN 0898-1221 R&D Projects: GA ČR GA14-02067S Institutional support: RVO:67985840 Keywords : sommerville tetrahedron * red refinement * higher-dimensional simplex Subject RIV: BA - General Mathematics Impact factor: 1.697, year: 2014 http://www.sciencedirect.com/science/article/pii/S0898122114000662

  16. Energy Bandwidth for Petroleum Refining Processes

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2006-10-01

    The petroleum refining energy bandwidth report analyzes the most energy-intensive unit operations used in U.S. refineries: crude oil distillation, fluid catalytic cracking, catalytic hydrotreating, catalytic reforming, and alkylation. The "bandwidth" provides a snapshot of the energy losses that can potentially be recovered through best practices and technology R&D.

  17. Robust Refinement as Implemented in TOPAS

    Energy Technology Data Exchange (ETDEWEB)

    Stone, K.; Stephens, P

    2010-01-01

    A robust refinement procedure is implemented in the program TOPAS through an iterative reweighting of the data. Examples are given of the procedure as applied to fitting partially overlapped peaks by full and partial models and also of the structures of ibuprofen and acetaminophen in the presence of unmodeled impurity contributions

  18. Autochthonous canine visceral leishmaniasis in a non-endemic area: Bom Sucesso, Minas Gerais State, Brazil Ocorrência de leishmaniose visceral canina autóctone em uma área não-endêmica: Bom Sucesso, Minas Gerais, Brasil

    Directory of Open Access Journals (Sweden)

    Marcio Roberto Silva

    2008-02-01

    Full Text Available The article begins by describing a dog with characteristic symptoms of visceral leishmaniasis. A serum sample from this animal was positive by indirect immunofluorescence (IIF performed in anti-Leishmania total IgG in 1999. Tissues from the same dog were also positive by polymerase chain reaction (PCR in 2004, identifying Leishmania DNA in the cerebellum, liver, kidney, and intestine. This is the first report of a dog with autochthonous visceral leishmaniasis in the county of Bom Sucesso, Minas Gerais State, Brazil. The finding of this IIF-positive dog led to a canine visceral leishmaniasis epidemiological investigation in the county. The investigation was conducted from March 1999 to December 2005. IIF was positive for Leishmania in 22 (3% of 734 examined dogs. Among the 22 IIF-positive dogs, six presented characteristic symptoms of canine visceral leishmaniasis. The results of this epidemiological investigation were sent to local and State public health authorities, requesting visceral leishmaniasis control and preventive measures to interrupt transmission of the disease and avoid the occurrence of human cases.O presente trabalho descreve inicialmente um cão com sintomas característicos de leishmaniose visceral. Amostra de soro desse cão foi positiva por imunofluorescência indireta (IFI conduzida no IgG total anti-Leishmania em 1999. Além disso, tecidos desse cão foram positivos por reação em cadeia pela polimerase (PCR conduzida em 2004, identificando DNA de Leishmania no cerebelo, fígado, rim e intestino. Esta é a primeira vez que um cão com leishmaniose visceral autóctone foi descrito no Município de Bom Sucesso, Minas Gerais, Brasil. O achado desse cão reagente à IFI levou a uma investigação epidemiológica nesse município. Essa investigação foi conduzida de março de 1999 a dezembro de 2005. Vinte e dois de um total de 734 (3% cães examinados foram reagentes à IFI. Entre os 22 cães IFI reagentes, seis apresentaram

  19. An Automated Policy Refinement Process Supported by Expert Knowledge

    OpenAIRE

    Rochaeli, Taufiq

    2009-01-01

    In a policy-based system management, a policy refinement process is required to translate abstract policies, which are specified by human, into enforceable policies, which are enforced by machine. However, a manual policy refinement process imposes some problems. The first problem is that it requires expert knowledge to perform the policy refinement process. The second problem is that refining policies for complex systems is a tedious task. Manual refinement process may cause some negative co...

  20. The relationship between viscosity and refinement efficiency of pure aluminum by Al-Ti-B refiner

    Energy Technology Data Exchange (ETDEWEB)

    Yu Lina [Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, 73 Jingshi Road, Jinan 250061 (China); Liu Xiangfa [Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, 73 Jingshi Road, Jinan 250061 (China)]. E-mail: xfliu@sdu.edu.cn

    2006-11-30

    The relationship between viscosity and refinement efficiency of pure aluminum with the addition of Al-Ti-B master alloy was studied in this paper. The experimental results show that when the grain size of solidified sample is finer the viscosity of the melt is higher after the addition of different Al-Ti-B master alloys. This indicates that viscosity can be used to approximately estimate the refinement efficiency of Al-Ti-B refiners in production to a certain extent. The main reason was also discussed in this paper by using transmission electron microscopy (TEM) analysis and differential scanning calorimetry (DSC) experiment.

  1. CARACTERÍSTICAS MORFOLÓGICAS E MORFOMÉTRICAS DOS CANAIS DE DRENAGEM DA BACIA HIDROGRÁFICA DO RIO BOM SUCESSO - SEMIÁRIDO DA BAHIA/BRASIL

    OpenAIRE

    Kleber Carvalho Lima; Archimedes Perez Filho; Cenira Maria Lupinacci Cunha

    2014-01-01

    Propõe-se neste artigo, analisar as características dos canais de drenagem intermitentes e efêmeros da Bacia Hidrográfica do Rio Bom Sucesso (Bahia), levando-se em consideração os seus aspectos morfológicos e morfométricos. Para tanto, definiu-se a rede de drenagem, caracterizaram-se os canais de drenagem, classificaram-se os cursos fluviais quanto à textura do canal e aplicaram-se os índices morfométricos. Por meio disso, verificou-se que a bacia possui baixa densidade de drenagem e baixa de...

  2. Multivariate refined composite multiscale entropy analysis

    Energy Technology Data Exchange (ETDEWEB)

    Humeau-Heurtier, Anne, E-mail: anne.humeau@univ-angers.fr

    2016-04-01

    Multiscale entropy (MSE) has become a prevailing method to quantify signals complexity. MSE relies on sample entropy. However, MSE may yield imprecise complexity estimation at large scales, because sample entropy does not give precise estimation of entropy when short signals are processed. A refined composite multiscale entropy (RCMSE) has therefore recently been proposed. Nevertheless, RCMSE is for univariate signals only. The simultaneous analysis of multi-channel (multivariate) data often over-performs studies based on univariate signals. We therefore introduce an extension of RCMSE to multivariate data. Applications of multivariate RCMSE to simulated processes reveal its better performances over the standard multivariate MSE. - Highlights: • Multiscale entropy quantifies data complexity but may be inaccurate at large scale. • A refined composite multiscale entropy (RCMSE) has therefore recently been proposed. • Nevertheless, RCMSE is adapted to univariate time series only. • We herein introduce an extension of RCMSE to multivariate data. • It shows better performances than the standard multivariate multiscale entropy.

  3. Advances in uranium refining and conversion

    International Nuclear Information System (INIS)

    1987-05-01

    One of the most important steps in the nuclear fuel cycle is the uranium refining and conversion which goes from the yellow cake to three different products: uranium dioxide, natural metallic uranium and uranium hexafluoride. The total volume of this industry, at the present time, is nearly of 40,000 t U per year and at the end of the present century it would have reached the 60,000 t U per year. The refining and conversion of reprocessed uranium that can be extracted by treating irradiated fuel become equally important for recycling recovered fuel. In response to the growing interest in these topics, the IAEA convened a Technical Committee Meeting with the attendance of 37 experts from 21 countries. This technical document contains the 20 papers presented during the meeting. A separate abstract was prepared for each of these papers

  4. Using supercritical fluids to refine hydrocarbons

    Science.gov (United States)

    Yarbro, Stephen Lee

    2014-11-25

    This is a method to reactively refine hydrocarbons, such as heavy oils with API gravities of less than 20.degree. and bitumen-like hydrocarbons with viscosities greater than 1000 cp at standard temperature and pressure using a selected fluid at supercritical conditions. The reaction portion of the method delivers lighter weight, more volatile hydrocarbons to an attached contacting device that operates in mixed subcritical or supercritical modes. This separates the reaction products into portions that are viable for use or sale without further conventional refining and hydro-processing techniques. This method produces valuable products with fewer processing steps, lower costs, increased worker safety due to less processing and handling, allow greater opportunity for new oil field development and subsequent positive economic impact, reduce related carbon dioxide, and wastes typical with conventional refineries.

  5. Refined 3d-3d correspondence

    Science.gov (United States)

    Alday, Luis F.; Genolini, Pietro Benetti; Bullimore, Mathew; van Loon, Mark

    2017-04-01

    We explore aspects of the correspondence between Seifert 3-manifolds and 3d N = 2 supersymmetric theories with a distinguished abelian flavour symmetry. We give a prescription for computing the squashed three-sphere partition functions of such 3d N = 2 theories constructed from boundary conditions and interfaces in a 4d N = 2∗ theory, mirroring the construction of Seifert manifold invariants via Dehn surgery. This is extended to include links in the Seifert manifold by the insertion of supersymmetric Wilson-'t Hooft loops in the 4d N = 2∗ theory. In the presence of a mass parameter cfor the distinguished flavour symmetry, we recover aspects of refined Chern-Simons theory with complex gauge group, and in particular construct an analytic continuation of the S-matrix of refined Chern-Simons theory.

  6. The Streltsovskoye uranium district

    International Nuclear Information System (INIS)

    Ischukova, L.P.

    1997-01-01

    This paper describes the geology of the Streltsovskoye uranium district located in south-eastern Zabaikalie region, Chita Province, Siberia, Russia. This district hosts Russia's only currently active uranium production centre. The uranium ore was discovered from 1963 to 1967 by drilling below fluorite veins which had minor associated uranium mineralization and radioactive anomalies. The uranium occurs as large scale vein stockwork deposits of hydrothermal origin within a volcano-tectonic caldera formed by continental volcanism of Late Mesozoic age. Rocks occurring in the caldera include basalt and trachydacite, overlain by rhyolite, and with associated interbedded sediments. The ore bodies occur in steeply dipping faults, with the greatest concentrations located where faults along the margins of the caldera intersect steeply dipping, cross cutting, northeasterly and northwesterly striking faults. The Streltsovskoye caldera extends over an area of 150 km 2 and is underlain by a large batholith. The 19 identified uranium deposits occurred in structural features that cut through the caldera sequence and extend into the basement rocks. The caldera has a maximum thickness of 1400 metres. Details of several deposits are given, including descriptions of mineralization and associated alteration. (author). 10 figs

  7. Solidification Based Grain Refinement in Steels

    Science.gov (United States)

    2009-07-24

    and a coarser microstructure forms (See Figure 17). ROLE OF COBALT ALUMINATE CoAI204 produced very different results in the 1010 and 1030 TA...determine what role CoAl204 played in both steels. Other researchers have observed refinement with cobalt aluminate.2"󈧙 Their work has been using...C0AI2O4 as an interior paint for superalloy investment castings. The alloys examined solidified primarily as austenite. These findings are in agreement

  8. Structural refinement and coarsening in deformed metals

    DEFF Research Database (Denmark)

    Hansen, N.; Huang, X.; Xing, Q.

    2005-01-01

    The microstructural refinement by plastic deformation is analysed in terms of key parameters, the spacing between and the misorientation angle across the boundaries subdividing the structure. Coarsening of such structures by annealing is also characterised. For both deformed and annealed structur......, good agreement has been found between experimental measurements of the flow stress and calculated values. Commercial purity aluminium is used as an example and deformed by cold rolling and by accumulative roll bonding....

  9. Refining molecular potentials using atom interferometry

    International Nuclear Information System (INIS)

    Forrey, R.C.; Kharchenko, V.; Dalgarno, A.; You, L.

    1997-01-01

    We present a theoretical study of the index of refraction of argon for the propagation of sodium matter waves. The sensitivity of the index of refraction to the details of the molecular potential curve is analyzed. Our calculations reveal velocity-dependent oscillations in the index of refraction that may be detectable, particularly at low temperatures, in atom interferometry measurements. A procedure for refining molecular potential curves is outlined. copyright 1997 The American Physical Society

  10. Problems persist for French refining sector

    International Nuclear Information System (INIS)

    Beck, R.J.

    1992-01-01

    This paper reports that France's refiners face a continuing shortfall of middle distillate capacity and a persistent surplus of heavy fuel oil. That's the main conclusion of the official Hydrocarbon Directorate's report on how France's refining sector performed in 1991. Imports up---The directorate noted that although net production of refined products in French refineries rose to 1.534 million b/d in 1991 from 1.48 million b/d in 1990, products imports jumped 9.7% to 602,000 b/d in the period. The glut of heavy fuel oil eased to some extent last year because French nuclear power capacity, heavily dependent on ample water supplies, was crimped by drought. That spawned fuel switching. The most note worthy increase in imports was for motor diesel, climbing to 176,000 b/d from 148,000 b/d in 1990. Tax credits are spurring French consumption of that fuel. For the first time, consumption of motor diesel in 1991 outstripped that of gasoline at 374,000 b/d and 356,000 b/d respectively

  11. Humanoid Mobile Manipulation Using Controller Refinement

    Science.gov (United States)

    Platt, Robert; Burridge, Robert; Diftler, Myron; Graf, Jodi; Goza, Mike; Huber, Eric; Brock, Oliver

    2006-01-01

    An important class of mobile manipulation problems are move-to-grasp problems where a mobile robot must navigate to and pick up an object. One of the distinguishing features of this class of tasks is its coarse-to-fine structure. Near the beginning of the task, the robot can only sense the target object coarsely or indirectly and make gross motion toward the object. However, after the robot has located and approached the object, the robot must finely control its grasping contacts using precise visual and haptic feedback. This paper proposes that move-to-grasp problems are naturally solved by a sequence of controllers that iteratively refines what ultimately becomes the final solution. This paper introduces the notion of a refining sequence of controllers and characterizes this type of solution. The approach is demonstrated in a move-to-grasp task where Robonaut, the NASA/JSC dexterous humanoid, is mounted on a mobile base and navigates to and picks up a geological sample box. In a series of tests, it is shown that a refining sequence of controllers decreases variance in robot configuration relative to the sample box until a successful grasp has been achieved.

  12. Formal refinement of extended state machines

    Directory of Open Access Journals (Sweden)

    Thomas Fayolle

    2016-06-01

    Full Text Available In a traditional formal development process, e.g. using the B method, the informal user requirements are (manually translated into a global abstract formal specification. This translation is especially difficult to achieve. The Event-B method was developed to incrementally and formally construct such a specification using stepwise refinement. Each increment takes into account new properties and system aspects. In this paper, we propose to couple a graphical notation called Algebraic State-Transition Diagrams (ASTD with an Event-B specification in order to provide a better understanding of the software behaviour. The dynamic behaviour is captured by the ASTD, which is based on automata and process algebra operators, while the data model is described by means of an Event-B specification. We propose a methodology to incrementally refine such specification couplings, taking into account new refinement relations and consistency conditions between the control specification and the data specification. We compare the specifications obtained using each approach for readability and proof complexity. The advantages and drawbacks of the traditional approach and of our methodology are discussed. The whole process is illustrated by a railway CBTC-like case study. Our approach is supported by tools for translating ASTD's into B and Event-B into B.

  13. Comprehensive Planning for School Districts.

    Science.gov (United States)

    Temkin, Sanford

    This paper describes an approach to school district planning that examines overall objectives, ongoing operations, values, performance criteria, performance outcomes, and costs. The method utilizes seven general data files to assess school district activities in terms of educational and economic criteria. These files consist of: three structural…

  14. Internal Auditing for School Districts.

    Science.gov (United States)

    Cuzzetto, Charles

    This book provides guidelines for conducting internal audits of school districts. The first five chapters provide an overview of internal auditing and describe techniques that can be used to improve or implement internal audits in school districts. They offer information on the definition and benefits of internal auditing, the role of internal…

  15. Redesigning the District Operating System

    Science.gov (United States)

    Hodas, Steven

    2015-01-01

    In this paper, we look at the inner workings of a school district through the lens of the "district operating system (DOS)," a set of interlocking mutually-reinforcing modules that includes functions like procurement, contracting, data and IT policy, the general counsel's office, human resources, and the systems for employee and family…

  16. Grain Refinement of Permanent Mold Cast Copper Base Alloys

    Energy Technology Data Exchange (ETDEWEB)

    M.Sadayappan; J.P.Thomson; M.Elboujdaini; G.Ping Gu; M. Sahoo

    2005-04-01

    Grain refinement is a well established process for many cast and wrought alloys. The mechanical properties of various alloys could be enhanced by reducing the grain size. Refinement is also known to improve casting characteristics such as fluidity and hot tearing. Grain refinement of copper-base alloys is not widely used, especially in sand casting process. However, in permanent mold casting of copper alloys it is now common to use grain refinement to counteract the problem of severe hot tearing which also improves the pressure tightness of plumbing components. The mechanism of grain refinement in copper-base alloys is not well understood. The issues to be studied include the effect of minor alloy additions on the microstructure, their interaction with the grain refiner, effect of cooling rate, and loss of grain refinement (fading). In this investigation, efforts were made to explore and understand grain refinement of copper alloys, especially in permanent mold casting conditions.

  17. Generalizing Refinement Operators to Learn Prenex Conjunctive Normal Forms

    NARCIS (Netherlands)

    S-H. Nienhuys-Cheng (Shan-Hwei); W. van Laer; J. Ramon; L. de Raedt

    2000-01-01

    textabstractInductive Logic Programming considers almost exclusively universally quantied theories. To add expressiveness, prenex conjunctive normal forms (PCNF) with existential variables should also be considered. ILP mostly uses learning with refinement operators. To extend refinement operators

  18. Nuclear district heating

    International Nuclear Information System (INIS)

    Ricateau, P.

    1976-01-01

    An economic study of nuclear district heating is concerned with: heat production, its transmission towards the area to be served and the distribution management towards the consumers. Foreign and French assessments show that the high cost of now existing techniques of hot water transport defines the competing limit distance between the site and township to be below some fifty kilometers for the most important townships (provided that the fuel price remain stationary). All studies converge towards the choice of a high transport temperature as soon as the distance is of some twenty kilometers. As for fossile energy saving, some new possibilities appear with process heat reactors; either PWR of about 1000MWth for large townships, or pool-type reactors of about 100MWth when a combination with an industrial steam supply occurs [fr

  19. GOOD PERFORMANCE APPRAISAL IN COMMERCIAL CORRESPONDENCE WRITING SKILLS OF THE EXECUTIVE BILINGUAL SECRETARY O BOM DESEMPENHO DA SECRETÁRIA EXECUTIVA BILÍNGUE NA REDAÇÃO DA CORRESPONDÊNCIA COMERCIAL

    Directory of Open Access Journals (Sweden)

    Rosemary de Paula Leite Carter

    2011-10-01

    Full Text Available

    Writing e-mails and commercial letters in English correctly it is a mandatory task in the professional everyday life of the executive secretary. This work has as an objective to offer an outlook on Commercial Correspondence in English, focusing notably on the commercial letters and e-mails. Some elements that give support to the good understanding of the reception of the text such as style, coherence; the usage of correct expressions as well as the strategic planning of the paragraphs will be highlighted in this project.

    Saber redigir corretamente e-mails e cartas comerciais em inglês é uma tarefa imprescindível na vida diária da secretária executiva. Este trabalho tem como objetivo oferecer exemplos de correspondência comercial em inglês que possam facilitar o trabalho da profissional da área. Algumas das opções serão discutidas para que o bom desempenho da escrita comercial seja concretizado de forma eficaz. Alguns elementos que dão suporte ao bom entendimento da recepção do texto como o estilo, a coerência, o emprego de expressões úteis assim como o planejamento estratégico dos parágrafos, foram destacados neste projeto.

  20. O «bom professor» na percepção de discentes do Programa de Pós-Graduação em Zootecnia da Faculdade de Agronomia Eliseu Maciel da Universidade Federal de Pelotas

    Directory of Open Access Journals (Sweden)

    Beatriz Simões Valente

    2016-01-01

    Full Text Available Este estudo tem como objetivo investigar o conceito de «bom professor» para os discentes do Programa de Pós-Graduação em Zootecnia da Faculdade de Agronomia Eliseu Maciel da Universidade Federal de Pelotas. A pesquisa caracteriza-se como qualitativa do tipo etnográfico. Foi utilizada uma entrevista semi-estruturada para a coleta de dados. Tais instrumentos foram respondidos por seis doutorandos do referido Programa. Percebemos, através da análise das convergências e divergências das respostas obtidas, que o «bom professor» é aquele que conhece o conteúdo teórico-prático de sua área específica, escolhe formas adequadas para apresentar a matéria, mantém um favorável relacionamento afetivo com o aluno e, ainda, utiliza-se de saberes pedagógicos no cotidiano da sala de aula.

  1. VT Data - Overlay District 20170419, Colchester

    Data.gov (United States)

    Vermont Center for Geographic Information — The following Overlay Districts are included in the data:General Development Four Commercial DistrictGeneral Development Four Openspace DistrictShoreland...

  2. Características de um grupo de usuários do Programa Saúde da Família na cidade de Campo Bom (RS, Brasil em 2006 Characteristics of Family Health Program users sample in Campo Bom (RS, Brazil during the year of 2006

    Directory of Open Access Journals (Sweden)

    Bárbara Niegia Garcia de Goulart

    2009-10-01

    Full Text Available O objetivo deste estudo é conhecer as características de uma amostra da população atendida por uma Equipe de Saúde da Família que buscou atendimento em uma unidade de saúde (UBS do município de Campo Bom (RS em 2006. Foram selecionados os primeiros 200 pacientes que consultaram a UBS pesquisada no mês de janeiro de 2006 e já consultavam no serviço.Características pessoais e ligadas à busca por atendimento nos últimos doze meses foram verificadas. Dos sujeitos da amostra, 68% eram do sexo feminino. As crianças representaram 30,5% e 59% dos entrevistados apresentavam ensino fundamental incompleto. A doença crônica como motivo para procura pela UBS ocorreu em 42% dos sujeitos e 17% procuraram o serviço para prevenção primária. As doenças crônicas representaram um percentual alto da amostra e provavelmente estão associadas à busca de atendimento clínico na UBS em virtude dos sintomas e complicações decorrentes destas. Este dado demonstra a necessidade de investimentos na prevenção de incapacidades e/ou complicações e prevenção da instalação de doenças crônicas preveníveis. A partir do conhecimento mais detalhado do perfil dos usuários do serviço de saúde estudado, a equipe de saúde pode promover uma atuação mais efetiva.This study aims to describe the characteristics of Family Health Program (FHP users sample in a Basic Health Unit (BHU in Campo Bom, southern of Brazil. Based on data collected from the handbook of the first 200 patients attended in a specific BHU in January 2006, we analyzed sex, age, average number of medical and nursing consultations in the last twelve months and the reasons for requiring a BHU attendance. In this sample, 68% were female. Children represented 30.5% of the sample and 35.5% of the patients self-declared as married. In addition to that, 59% had not finished basic school. Almost half (42% of the citizens presented some chronic disease as a complaint to go to a BUH and 17

  3. Adubação orgânica e intensidade luminosa no crescimento e desenvolvimento inicial da Pitaya em Bom Jesus-PI Organic fertlizing and light intensity on initial growth and development of Pitaya in Bom Jesus, Piaui state, Brazil

    Directory of Open Access Journals (Sweden)

    Ítalo Herbert Lucena Cavalcante

    2011-09-01

    Full Text Available A pitaya é uma cactácea de sub-bosque, originária de florestas tropicais do México e das Américas Central e do Sul, pouco estudada no Brasil, principalmente quanto à sua resposta à intensidade luminosa e adubação. Nesse sentido, realizou-se um experimento objetivando avaliar crescimento e desenvolvimento inicial da pitaya em função da intensidade luminosa e adubação orgânica. O delineamento experimental adotado foi em blocos casualizados, com tratamentos distribuídos em esquema fatorial 5 x 3, referentes, respectivamente, aos níveis de adubação orgânica (0; 5; 10; 20 e 30 L de esterco bovino cova-1 e aos percentuais de luz (0; 50 e 75% de sombreamento, com quatro repetições. Foram avaliados semanalmente diâmetro do cladódio (mm, altura de estacas (cm e comprimento do ramo secundário (cm; ao final do experimento, massa fresca da parte aérea e massas secas de raiz e parte aérea (g, sendo que para as variáveis mensuradas, semanalmente, foram calculados os respectivos incrementos percentuais semanais. Segundo os resultados do presente trabalho, no cultivo da pitaya, é necessário o uso de cobertura contra a incidência direta dos raios solares, onde as estruturas com 50% ou 75% de luminosidade podem ser usadas. O fornecimento de 20 L cova-1 de esterco bovino pode ser adotado como quantitativo no preparo de covas de pitaya, nas condições de clima e solo de Bom Jesus-PI.Pitaya is a hemiepiphytic cactus native to tropical rainforests of Mexico and Central and South America little studied in Brazil especially in relation to light intensity and fertilizing. In this way, an experiment was realized in 2007 aiming to evaluate the initial growth and development as a function of light intensity and organic fertilizing. A complete randomized blocks design was adopted with treatments distributed in a factorial arrangement 5 x 3 referring respectively to organic fertilizing levels (0, 5, 10, 20 e 30 L of bovine manure plant-1 and

  4. Effects and mechanisms of grain refinement in aluminium alloys

    Indian Academy of Sciences (India)

    Unknown

    grain refine the solidified product. The mechanism of grain refinement is of considerable ... The present paper attempts to review the literature on the nucleant effects and solute effects on grain refinement and ... cast alloys. Firstly, reduced mechanical properties have been noted in plate products for structural application.

  5. Grain refinement of AZ31 magnesium alloy by electromagnetic ...

    Indian Academy of Sciences (India)

    The effects of electromagnetic stirring and Al4C3 grain refiner on the grain refinement of semicontinuously cast AZ31 magnesium alloy were discussed in this investigation. The results indicate that electromagnetic stirring has an effective refining effect on the grain size of AZ31 magnesium alloy under the effect of Al4C3 ...

  6. Effects and mechanisms of grain refinement in aluminium alloys

    Indian Academy of Sciences (India)

    Unknown

    Abstract. Grain refinement plays a crucial role in improving characteristics and properties of cast and wrought aluminium alloys. Generally Al–Ti and Al–Ti–B master alloys are added to the aluminium alloys to grain refine the solidified product. The mechanism of grain refinement is of considerable controversy in the scientific ...

  7. Grain refinement of AZ31 magnesium alloy by electromagnetic ...

    Indian Academy of Sciences (India)

    Abstract. The effects of electromagnetic stirring and Al4C3 grain refiner on the grain refinement of semi- continuously cast AZ31 magnesium alloy were discussed in this investigation. The results indicate that electromag- netic stirring has an effective refining effect on the grain size of AZ31 magnesium alloy under the effect of ...

  8. Principles of minimum cost refining for optimum linerboard strength

    Science.gov (United States)

    Thomas J. Urbanik; Jong Myoung Won

    2006-01-01

    The mechanical properties of paper at a single basis weight and a single targeted refining freeness level have traditionally been used to compare papers. Understanding the economics of corrugated fiberboard requires a more global characterization of the variation of mechanical properties and refining energy consumption with freeness. The cost of refining energy to...

  9. Effects and mechanisms of grain refinement in aluminium alloys

    Indian Academy of Sciences (India)

    2016-08-26

    Aug 26, 2016 ... Grain refinement plays a crucial role in improving characteristics and properties of cast and wrought aluminium alloys. Generally Al–Ti and Al–Ti–B master alloys are added to the aluminium alloys to grain refine the solidified product. The mechanism of grain refinement is of considerable controversy in the ...

  10. Refining Grasp Affordance Models by Experience

    DEFF Research Database (Denmark)

    Detry, Renaud; Kraft, Dirk; Buch, Anders Glent

    2010-01-01

    grasps. These affordances are represented probabilistically with grasp densities, which correspond to continuous density functions defined on the space of 6D gripper poses. A grasp density characterizes an object’s grasp affordance; densities are linked to visual stimuli through registration...... with a visual model of the object they characterize. We explore a batch-oriented, experience-based learning paradigm where grasps sampled randomly from a density are performed, and an importance-sampling algorithm learns a refined density from the outcomes of these experiences. The first such learning cycle...

  11. Local adaptive mesh refinement for shock hydrodynamics

    International Nuclear Information System (INIS)

    Berger, M.J.; Colella, P.; Lawrence Livermore Laboratory, Livermore, 94550 California)

    1989-01-01

    The aim of this work is the development of an automatic, adaptive mesh refinement strategy for solving hyperbolic conservation laws in two dimensions. There are two main difficulties in doing this. The first problem is due to the presence of discontinuities in the solution and the effect on them of discontinuities in the mesh. The second problem is how to organize the algorithm to minimize memory and CPU overhead. This is an important consideration and will continue to be important as more sophisticated algorithms that use data structures other than arrays are developed for use on vector and parallel computers. copyright 1989 Academic Press, Inc

  12. Formal language theory: refining the Chomsky hierarchy.

    Science.gov (United States)

    Jäger, Gerhard; Rogers, James

    2012-07-19

    The first part of this article gives a brief overview of the four levels of the Chomsky hierarchy, with a special emphasis on context-free and regular languages. It then recapitulates the arguments why neither regular nor context-free grammar is sufficiently expressive to capture all phenomena in the natural language syntax. In the second part, two refinements of the Chomsky hierarchy are reviewed, which are both relevant to the extant research in cognitive science: the mildly context-sensitive languages (which are located between context-free and context-sensitive languages), and the sub-regular hierarchy (which distinguishes several levels of complexity within the class of regular languages).

  13. VT Data - Historic Overlay District 20170712, Westminster

    Data.gov (United States)

    Vermont Center for Geographic Information — Historical Preservation overlay district, Westminster, Vermont. Other overlay overlay districts (Agricultural Land and Ridgeline Protection), and base zoning...

  14. VT Data - Overlay District 20070306, Marlboro

    Data.gov (United States)

    Vermont Center for Geographic Information — Cartographic version of overlay district (surface water buffer), Marlboro, Vermont. Base zoning districts are in a separate shapefile. Data were originally created...

  15. Projections of the impact of expansion of domestic heavy oil production on the U.S. refining industry from 1990 to 2010. Topical report

    Energy Technology Data Exchange (ETDEWEB)

    Olsen, D.K.; Ramzel, E.B.; Strycker, A.R. [National Institute for Petroleum and Energy Research, Bartlesville, OK (United States). ITT Research Institute; Guariguata, G.; Salmen, F.G. [Bonner and Moore Management Science, Houston, TX (United States)

    1994-12-01

    This report is one of a series of publications assessing the feasibility of increasing domestic heavy oil (10{degrees} to 20{degrees} API gravity) production. This report provides a compendium of the United States refining industry and analyzes the industry by Petroleum Administration for Defense District (PADD) and by ten smaller refining areas. The refining capacity, oil source and oil quality are analyzed, and projections are made for the U.S. refining industry for the years 1990 to 2010. The study used publicly available data as background. A linear program model of the U.S. refining industry was constructed and validated using 1990 U.S. refinery performance. Projections of domestic oil production (decline) and import of crude oil (increases) were balanced to meet anticipated demand to establish a base case for years 1990 through 2010. The impact of additional domestic heavy oil production, (300 MB/D to 900 MB/D, originating in select areas of the U.S.) on the U.S. refining complex was evaluated. This heavy oil could reduce the import rate and the balance of payments by displacing some imported, principally Mid-east, medium crude. The construction cost for refining units to accommodate this additional domestic heavy oil production in both the low and high volume scenarios is about 7 billion dollars for bottoms conversion capacity (delayed coking) with about 50% of the cost attributed to compliance with the Clean Air Act Amendment of 1990.

  16. Legislative Districts - State Senate Districts in Volusia County (Polygons)

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — Polygons designating boundaries for state Senate Districts within Volusia County according to Senate Joint Resolution 2B State Senate Plan S016S9030 approved on...

  17. THE DISTRICT OF CODRU – DISTRICT OR LAND?

    Directory of Open Access Journals (Sweden)

    SIMONA-MONICA CHITA

    2016-06-01

    Full Text Available The District of Codru – District or Land? The main objective of this paper is to demonstrate why the ethnographic Codru is a “district” (ținut and not a “land” (țară – the term used by most people. To achieve this goal, we analyzed the significance of the two concepts, as well as their characteristic elements. Following the first part of the paper we presented connotations that have known “district and land” over time, and in the second part we presented the differences between the two concepts, with application to the District of Codru. Presentation and analysis of the situation eventually led to support the fact that the ethnographic Codru is a “district” – a unique mental space.

  18. 2006 Southwest Florida Water Management District (SWFWMD) Lidar: North District

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set is one component of a digital terrain model (DTM) for the Southwest Florida Water Management District's FY2006 Digital Orthophoto (B089) and LiDAR...

  19. Distribution feeder reconfiguration with refined genetic algorithm

    Energy Technology Data Exchange (ETDEWEB)

    Lin, W.-M.; Cheng, F.-S. [National Sun Yat-Sen University, Kaohsiung (China). Dept. of Electrical Engineering; Tsay, M.-T. [Cheng-Shiu Institute of Technology, Kaohsiung (China). Dept. of Electrical Engineering

    2000-11-01

    A refined genetic algorithm for a distribution feeder reconfiguration to reduce losses is presented. The problem is optimised in a stochastic searching manner similar to that of the conventional GA. The initial population is determined by opening the switches with the lowest current in every mesh derived in the optimal power flow (OPF), with all switches closed. Solutions provided by OPF are generally the optimum or near-optimal solutions for most cases, so prematurity could occur. To avoid prematurity, the conventional crossover and mutation scheme was refined by a competition mechanism. So the dilemma of choosing a proper probability for crossover and mutation can be avoided. The two processes were also combined into one to save computation time. Tabu lists with heuristic rules were also employed in the searching process to enhance performance. The new approach provides an overall switching decision instead of a successive pattern, which tends to converge to a local optimum. Many tests were conducted and the results have shown that RGA has advantages over many other previously developed algorithms. (author)

  20. Refining Automatically Extracted Knowledge Bases Using Crowdsourcing.

    Science.gov (United States)

    Li, Chunhua; Zhao, Pengpeng; Sheng, Victor S; Xian, Xuefeng; Wu, Jian; Cui, Zhiming

    2017-01-01

    Machine-constructed knowledge bases often contain noisy and inaccurate facts. There exists significant work in developing automated algorithms for knowledge base refinement. Automated approaches improve the quality of knowledge bases but are far from perfect. In this paper, we leverage crowdsourcing to improve the quality of automatically extracted knowledge bases. As human labelling is costly, an important research challenge is how we can use limited human resources to maximize the quality improvement for a knowledge base. To address this problem, we first introduce a concept of semantic constraints that can be used to detect potential errors and do inference among candidate facts. Then, based on semantic constraints, we propose rank-based and graph-based algorithms for crowdsourced knowledge refining, which judiciously select the most beneficial candidate facts to conduct crowdsourcing and prune unnecessary questions. Our experiments show that our method improves the quality of knowledge bases significantly and outperforms state-of-the-art automatic methods under a reasonable crowdsourcing cost.

  1. Pacific Basin Heavy Oil Refining Capacity

    Directory of Open Access Journals (Sweden)

    David Hackett

    2013-02-01

    Full Text Available The United States today is Canada’s largest customer for oil and refined oil products. However, this relationship may be strained due to physical, economic and political influences. Pipeline capacity is approaching its limits; Canadian oil is selling at substantive discounts to world market prices; and U.S. demand for crude oil and finished products (such as gasoline, has begun to flatten significantly relative to historical rates. Lower demand, combined with increased shale oil production, means U.S. demand for Canadian oil is expected to continue to decline. Under these circumstances, gaining access to new markets such as those in the Asia-Pacific region is becoming more and more important for the Canadian economy. However, expanding pipeline capacity to the Pacific via the proposed Northern Gateway pipeline and the planned Trans Mountain pipeline expansion is only feasible when there is sufficient demand and processing capacity to support Canadian crude blends. Canadian heavy oil requires more refining and produces less valuable end products than other lighter and sweeter blends. Canadian producers must compete with lighter, sweeter oils from the Middle East, and elsewhere, for a place in the Pacific Basin refineries built to handle heavy crude blends. Canadian oil sands producers are currently expanding production capacity. Once complete, the Northern Gateway pipeline and the Trans Mountain expansion are expected to deliver an additional 500,000 to 1.1 million barrels a day to tankers on the Pacific coast. Through this survey of the capacity of Pacific Basin refineries, including existing and proposed facilities, we have concluded that there is sufficient technical capacity in the Pacific Basin to refine the additional Canadian volume; however, there may be some modifications required to certain refineries to allow them to process Western Canadian crude. Any additional capacity for Canadian oil would require refinery modifications or

  2. Increased delignification by white rot fungi after pressure refining Miscanthus.

    Science.gov (United States)

    Baker, Paul W; Charlton, Adam; Hale, Mike D C

    2015-01-01

    Pressure refining, a pulp making process to separate fibres of lignocellulosic materials, deposits lignin granules on the surface of the fibres that could enable increased access to lignin degrading enzymes. Three different white rot fungi were grown on pressure refined (at 6 bar and 8 bar) and milled Miscanthus. Growth after 28 days showed highest biomass losses on milled Miscanthus compared to pressure refined Miscanthus. Ceriporiopsis subvermispora caused a significantly higher proportion of lignin removal when grown on 6 bar pressure refined Miscanthus compared to growth on 8 bar pressure refined Miscanthus and milled Miscanthus. RM22b followed a similar trend but Phlebiopsis gigantea SPLog6 did not. Conversely, C. subvermispora growing on pressure refined Miscanthus revealed that the proportion of cellulose increased. These results show that two of the three white rot fungi used in this study showed higher delignification on pressure refined Miscanthus than milled Miscanthus. Copyright © 2015 Elsevier Ltd. All rights reserved.

  3. O lineamento Jeceaba-Bom Sucesso como limite dos terrenos arqueanos e paleoproterozóicos do cráton São Francisco meridional: evidências geológicas, geoquímicas (rocha total) e geocronológicas (U-Pb).

    OpenAIRE

    Campos, José Carlos Sales

    2004-01-01

    O Lineamento Jeceaba-Bom Sucesso (LJBS) é uma descontinuidade crustal, evidenciada por forte anomalia magnética. Esse lineamento se estende desde a região sul do Quadrilátero Ferrífero até as imediações das cidades de Bom Sucesso e Ibituruna. O fragmento crustal arqueano, situado a NW do LJBS teve uma evolução complexa, de caráter policíclico, contrapondo-se ao segmento SE, essencialmente paleoproterozóico. O terreno situado a NW do LJBS foi afetado por eventos tectonotermais do Mesoarqueano ...

  4. The Winfrith district gamma survey

    International Nuclear Information System (INIS)

    Cavell, I.W.; Peabody, C.O.

    1961-09-01

    This report describes the District Gamma Survey carried out around the A.E.E., Winfrith since June, 1959. Its organisation, equipment and techniques are described, and the results obtained up to the 31st December, 1960 are given. (author)

  5. New Mexico Property Tax Districts

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This layer represents boundaries for New Mexico tax district "OUT" categories and incorporated/municipal "IN" categories as identified on the "Certificate of Tax...

  6. Allegheny County School District Boundaries

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset demarcates the school district boundaries within Allegheny County If viewing this description on the Western Pennsylvania Regional Data Center’s open...

  7. Boise geothermal district heating system

    Energy Technology Data Exchange (ETDEWEB)

    Hanson, P.J.

    1985-10-01

    This document describes the Boise geothermal district heating project from preliminary feasibility studies completed in 1979 to a fully operational system by 1983. The report includes information about the two local governments that participated in the project - the City of Boise, Idaho and the Boise Warm Springs Water District. It also discusses the federal funding sources; the financial studies; the feasibility studies conducted; the general system planning and design; design of detailed system components; the legal issues involved in production; geological analysis of the resource area; distribution and disposal; the program to market system services; and the methods of retrofitting buildings to use geothermal hot water for space heating. Technically this report describes the Boise City district heating system based on 170/sup 0/F water, a 4000 gpm production system, a 41,000 foot pipeline system, and system economies. Comparable data are also provided for the Boise Warm Springs Water District. 62 figs., 31 tabs.

  8. Effect of strontium on the grain refining efficiency of Mg-3Al alloy refined by carbon inoculation

    International Nuclear Information System (INIS)

    Du Jun; Yang Jian; Kuwabara, Mamoru; Li Wenfang; Peng Jihua

    2009-01-01

    The effect of Sr on the grain refining efficiency of the Mg-3Al alloy refined by carbon inoculation has been investigated in the present study. A significant grain refinement was obtained for the Mg-3Al alloy treated with either 0.2% C or 0.2% Sr. The Al-C-O particles were found in the sample refined by 0.2% C, and the element O should come from reaction between Al 4 C 3 nuclei of Mg grains and water during the process of sample preparation. The grain size of the sample refined by carbon inoculation was further decreased after the combined addition of Sr. The grain size decreased with increasing Sr content. Much higher refining efficiency was obtained when the Sr addition was increased to 0.5%. Sr is an effective element to improve the grain refining efficiency for the Mg-Al alloys refined by carbon inoculation. The number of Al 4 C 3 particles in the sample refined by the combination of carbon and Sr was more than that in the sample refined by only carbon. No Al-C-O-Sr-rich particles were obviously found in the sample refined by the combination of carbon and a little (<0.5%) Sr addition

  9. Cyclone hazard proneness of districts of India

    Indian Academy of Sciences (India)

    So, an attempt has been made to classify TC hazard proneness of districts by adopting a hazard criteria based on frequency and intensity of cyclone, wind strength, probable maximum precipitation, and probable maximum storm surge. Ninety-six districts including 72 districts touching the coast and 24 districts not touching ...

  10. Visualization Tools for Adaptive Mesh Refinement Data

    Energy Technology Data Exchange (ETDEWEB)

    Weber, Gunther H.; Beckner, Vincent E.; Childs, Hank; Ligocki,Terry J.; Miller, Mark C.; Van Straalen, Brian; Bethel, E. Wes

    2007-05-09

    Adaptive Mesh Refinement (AMR) is a highly effective method for simulations that span a large range of spatiotemporal scales, such as astrophysical simulations that must accommodate ranges from interstellar to sub-planetary. Most mainstream visualization tools still lack support for AMR as a first class data type and AMR code teams use custom built applications for AMR visualization. The Department of Energy's (DOE's) Science Discovery through Advanced Computing (SciDAC) Visualization and Analytics Center for Enabling Technologies (VACET) is currently working on extending VisIt, which is an open source visualization tool that accommodates AMR as a first-class data type. These efforts will bridge the gap between general-purpose visualization applications and highly specialized AMR visual analysis applications. Here, we give an overview of the state of the art in AMR visualization research and tools and describe how VisIt currently handles AMR data.

  11. Formal language theory: refining the Chomsky hierarchy

    Science.gov (United States)

    Jäger, Gerhard; Rogers, James

    2012-01-01

    The first part of this article gives a brief overview of the four levels of the Chomsky hierarchy, with a special emphasis on context-free and regular languages. It then recapitulates the arguments why neither regular nor context-free grammar is sufficiently expressive to capture all phenomena in the natural language syntax. In the second part, two refinements of the Chomsky hierarchy are reviewed, which are both relevant to the extant research in cognitive science: the mildly context-sensitive languages (which are located between context-free and context-sensitive languages), and the sub-regular hierarchy (which distinguishes several levels of complexity within the class of regular languages). PMID:22688632

  12. Panorama 2011: Refining: varying conditions by region

    International Nuclear Information System (INIS)

    Silva, C.

    2011-01-01

    The economic crisis has further weakened a sector that was already facing difficulties, if we look beyond the flush period (2005-2008) when, buoyed by strong demand, margins remained high and refiners could generate profits while maintaining a healthy level of activity. Falling demand and increased over-capacity in some regions - the immediate consequences of the deteriorating economic conditions over the past two years - have led to declining margins and to financial accounts being in the red. The adoption of increasingly stringent emissions standards and product specifications, burdensome regulatory requirements for refineries (for combating local pollution and reducing greenhouse gas emissions), stiffer competition from new fuels: all of these structural factors are weakening the sector, especially in industrialized nations with their more rigorous regulatory compliance. In this generally gloomy climate, numerous new projects are still being envisaged - although many have recently been postponed and tend to be concentrated in developing countries. (author)

  13. Refining prices and margins in 1998

    International Nuclear Information System (INIS)

    Favennec, J.P.; Baudoin, C.

    1999-01-01

    Despite a business environment that was globally mediocre due primarily to the Asian crisis and to a mild winter in the northern hemisphere, the signs of improvement noted in the refining activity in 1996 were borne out in 1997. But the situation is not yet satisfactory in this sector: the low return on invested capital and the financing of environmental protection expenditure are giving cause for concern. In 1998, the drop in crude oil prices and the concomitant fall in petroleum product prices was ultimately rather favorable to margins. Two elements tended to put a damper on this relative optimism. First of all, margins continue to be extremely volatile and, secondly, the worsening of the economic and financial crisis observed during the summer made for a sharp decline in margins in all geographic regions, especially Asia

  14. China's oil market and refining sector

    International Nuclear Information System (INIS)

    Yamaguchi, N.D.; Fridley, D.G.

    2000-01-01

    The article assesses the future for China's oil industry as the country makes the transition from a command economy to an international market. China has one of the world's biggest oil industries and recent years have seen much growth in exploration and development, refining capacity and trade. China is more and more dependent on oil imports and is now a major international player; it has attracted much outside investment. Diagrams show (i) how coal dominates other sources of energy in China; (ii) crude production 1977-1998; (iii) how Middle East crudes now dominate Chinese crude imports; (iv) the growth of petroleum demand in China; (v) the Chinese demand for petroleum products; (vi) the growth in transport fuels; (vii) Chinese product imports: import ban targeted diesel; (viii) crude imports favoured over product imports and (ix) refinery capacity and throughput. The changes are expected to result in further integration into international markets, increased transparency and a healthier oil business

  15. Japan's oil market and refining sector

    International Nuclear Information System (INIS)

    Yamaguchi, N.D.

    2002-01-01

    The present economic situation in Japan is discussed. In particular, the focus is on fluctuations in oil product demand, imports of crude oil, and the refining industry. Throughout the 1990s, Japan was plagued by a volatile economy and the new millennium has shown no improvement. A prolonged recession means that the country now has little confidence in its leaders and its institutions, consumer confidence is low and asset values have deflated. Due to a low birth rate and long life expectancy, the population is aging and this means lower savings rates. The contrast between the present situation and the so-called economic miracle once enjoyed by the Japanese is hard to accept, but despite all this, the Japanese lifestyle and economy are to be envied

  16. Amianto, perigo e invisibilidade: percepção de riscos ambientais e à saúde de moradores do município de Bom Jesus da Serra/Bahia Asbestos, danger and invisibility: perception of environmental risks and health of the residents of Bom Jesus da Serra/ Bahia state

    Directory of Open Access Journals (Sweden)

    Marcela de Abreu Moniz

    2012-02-01

    Full Text Available Na sociedade atual, tornou-se importante o fato de conhecer como as populações expostas ambientalmente formulam e respondem aos riscos químicos tecnológicos. Este estudo objetivou analisar a percepção de riscos ambientais e à saúde de moradores do município de Bom Jesus da Serra/BA, que se apresenta como uma área especialmente envolvida pela exposição ambiental ao amianto no Brasil. Foram aplicados questionários mistos com moradores usuários de duas estratégias de saúde da família desse município. Os sujeitos do estudo foram selecionados conforme as seguintes características: faixas etárias específicas- uma de 20 a 35 anos e outra a partir de 60 anos; gênero; tempo e local de moradia. A amostra intencional alcançada foi de 83 sujeitos. Os resultados mostraram que predominou a preocupação sobre a contaminação do ar pela poeira, mas houve negação dos riscos ambientais relacionados ao amianto. No que se refere aos riscos à saúde, também ocorreu invisibilidade pela maioria dos informantes sobre a maior chance de se ter câncer e doenças pulmonares para quem resida nesse município, principalmente para o grupo de moradores próximo à mina e de ex-trabalhadores idosos.It is important for society as a whole to know how environmentally exposed populations understand and respond to technological chemical risks. This study aimed to analyze the perception of environmental risks and health of the residents of BJS/BA, which is an area especially subjected to environmental exposure to asbestos in Brazil. Mixed questionnaires were used on residents who attend the "Family Health Program" of this city. The subjects of the study were selected according to the following characteristics: specific age groups - one group from 20 to 35 and the other group over 60; sex; length of time and location of dwelling. The intentional sample reached comprised 83 individuals. The results showed that there was general concern about contamination

  17. Refining of metallurgical silicon by directional solidification

    Energy Technology Data Exchange (ETDEWEB)

    Martorano, M.A., E-mail: martoran@usp.br [Department of Metallurgical and Materials Engineering, University of Sao Paulo, Av. Prof. Mello Moraes, 2463 Sao Paulo-SP, 05508-900 (Brazil); Neto, J.B. Ferreira, E-mail: jbfn@ipt.br [Laboratory of Metallurgy and Ceramics Materials, Institute for Technological Research, Av. Prof. Almeida Prado, 532, Sao Paulo-SP, 05508-901 (Brazil); Oliveira, T.S., E-mail: theo.usp@bol.com.br [Department of Metallurgical and Materials Engineering, University of Sao Paulo, Av. Prof. Mello Moraes, 2463 Sao Paulo-SP, 05508-900 (Brazil); Tsubaki, T.O., E-mail: tomoe@ipt.br [Laboratory of Metallurgy and Ceramics Materials, Institute for Technological Research, Av. Prof. Almeida Prado, 532, Sao Paulo-SP, 05508-901 (Brazil)

    2011-02-25

    The directional solidification of a typical and a previously refined metallurgical silicon was carried out in a vertical Bridgman furnace. The mold velocity out of the hot zone of the furnace changed from one experiment to another in the range between 5 and 110 {mu}m s{sup -1}. Samples were extracted from the cylindrical ingots obtained in the experiments to investigate the effects of the mold velocity on the micro and macrostructures and on the concentration profiles of impurities along the ingots. At the lowest mold velocity, the macrostructures consist of columnar grains oriented approximately parallel to the ingot axis. As velocity increases, grains become thinner and more inclined in the radial direction. Precipitated particles containing Si, Fe, Al, and Ti are observed at the top of all ingots and, as the mold velocity increases, they are also seen at the ingot bottom and middle. The concentration profiles of several impurities have been measured along the ingots by inductively coupled plasma atomic emission spectrometry (ICP), indicating an accumulation of impurities at the ingot top. Consequently, the bottom and middle of the ingots are purer than the corresponding metallurgical silicon from which they solidified. Slices from the ingot bottom have also been analyzed by the glow discharge mass spectrometry technique (GDMS), allowing measurement of impurity concentrations that were below the quantification limit of the ICP. The purification effect and the accumulation of impurities at the ingot top are more pronounced as the mold velocity decreases. In the ingots obtained from the typical metallurgical silicon at the lowest mold velocities (5 and 10 {mu}m s{sup -1}), except for Al, all impurities are in concentrations below an important maximum limit for the feedstock of solar grade silicon. At the same mold velocities, the concentrations of Fe, Ti, Cu, Mn, and Ni measured at the bottom of the ingots obtained from both types of metallurgical silicon (typical

  18. Error bounds from extra precise iterative refinement

    Energy Technology Data Exchange (ETDEWEB)

    Demmel, James; Hida, Yozo; Kahan, William; Li, Xiaoye S.; Mukherjee, Soni; Riedy, E. Jason

    2005-02-07

    We present the design and testing of an algorithm for iterative refinement of the solution of linear equations, where the residual is computed with extra precision. This algorithm was originally proposed in the 1960s [6, 22] as a means to compute very accurate solutions to all but the most ill-conditioned linear systems of equations. However two obstacles have until now prevented its adoption in standard subroutine libraries like LAPACK: (1) There was no standard way to access the higher precision arithmetic needed to compute residuals, and (2) it was unclear how to compute a reliable error bound for the computed solution. The completion of the new BLAS Technical Forum Standard [5] has recently removed the first obstacle. To overcome the second obstacle, we show how a single application of iterative refinement can be used to compute an error bound in any norm at small cost, and use this to compute both an error bound in the usual infinity norm, and a componentwise relative error bound. We report extensive test results on over 6.2 million matrices of dimension 5, 10, 100, and 1000. As long as a normwise (resp. componentwise) condition number computed by the algorithm is less than 1/max{l_brace}10,{radical}n{r_brace} {var_epsilon}{sub w}, the computed normwise (resp. componentwise) error bound is at most 2 max{l_brace}10,{radical}n{r_brace} {center_dot} {var_epsilon}{sub w}, and indeed bounds the true error. Here, n is the matrix dimension and w is single precision roundoff error. For worse conditioned problems, we get similarly small correct error bounds in over 89.4% of cases.

  19. Essays on refining markets and environmental policy

    Science.gov (United States)

    Oladunjoye, Olusegun Akintunde

    This thesis is comprised of three essays. The first two essays examine empirically the relationship between crude oil price and wholesale gasoline prices in the U.S. petroleum refining industry while the third essay determines the optimal combination of emissions tax and environmental research and development (ER&D) subsidy when firms organize ER&D either competitively or as a research joint venture (RJV). In the first essay, we estimate an error correction model to determine the effects of market structure on the speed of adjustment of wholesale gasoline prices, to crude oil price changes. The results indicate that market structure does not have a strong effect on the dynamics of price adjustment in the three regional markets examined. In the second essay, we allow for inventories to affect the relationship between crude oil and wholesale gasoline prices by allowing them to affect the probability of regime change in a Markov-switching model of the refining margin. We find that low gasoline inventory increases the probability of switching from the low margin regime to the high margin regime and also increases the probability of staying in the high margin regime. This is consistent with the predictions of the competitive storage theory. In the third essay, we extend the Industrial Organization R&D theory to the determination of optimal environmental policies. We find that RJV is socially desirable. In comparison to competitive ER&D, we suggest that regulators should encourage RJV with a lower emissions tax and higher subsidy as these will lead to the coordination of ER&D activities and eliminate duplication of efforts while firms internalize their technological spillover externality.

  20. 76 FR 20971 - Turlock Irrigation District and Modesto Irrigation District; Notice of Intent To File License...

    Science.gov (United States)

    2011-04-14

    ... Irrigation District and Modesto Irrigation District; Notice of Intent To File License Application, Filing of...: Turlock Irrigation District and Modesto Irrigation District. e. Name of Project: Don Pedro Hydroelectric... Irrigation District, P.O. Box 949, Turlock, California 95381, 209-883-8241 and Greg Dias, Project Manager...

  1. 77 FR 5507 - Turlock Irrigation District, Modesto Irrigation District; Notice of Proposed Restricted Service...

    Science.gov (United States)

    2012-02-03

    ... Irrigation District, Modesto Irrigation District; Notice of Proposed Restricted Service List for a... any Order issuing a license. Turlock Irrigation District and Modesto Irrigation District, as the..., Sacramento, CA 95816. Robert Nees, or Representative, Turlock Irrigation District, P.O. Box 949, Turlock, CA...

  2. 77 FR 4291 - Turlock Irrigation District; Modesto Irrigation District; Notice of Proposed Restricted Service...

    Science.gov (United States)

    2012-01-27

    ... Irrigation District; Modesto Irrigation District; Notice of Proposed Restricted Service List for a... any Order issuing a license. Turlock Irrigation District and Modesto Irrigation District, as the..., Turlock Irrigation District, P.O. Box 949, Turlock, CA 95381. Greg Dias or Representative, Modesto...

  3. O “bom professor”: opinião dos estudantes El “buen profesor”: opinión de los estudiantes The “good teacher”: students’ opinions

    Directory of Open Access Journals (Sweden)

    Maria Clara Amado Apóstolo Ventura

    2011-12-01

    Full Text Available Num processo de ensino/aprendizagem centrado no estudante e numa perspetiva de melhoria contínua e de crescer com qualidade e relevância, o Conselho para a Qualidade e Avaliação da Escola Superior de Enfermagem de Coimbra entendeu ser pertinente conhecer a opinião dos estudantes sobre o perfil de um ‘Bom Professor’. Neste contexto, desenvolveu um estudo tendo como objetivo identificar a opinião dos estudantes acerca das características de um ‘Bom Professor’. Trata-se de um estudo qualitativo, utilizando um questionário autopreenchido, com uma questão aberta “o que considera ser um Bom Professor”, e a identificação do curso. A amostra é constituída por 174 e 52 estudantes dos Cursos de Licenciatura e Pós-Licenciatura de Especialização em Enfermagem, respetivamente. Do conjunto de indicadores de um “Bom professor” emerge o domínio dos conteúdos da disciplina que leciona, a capacidade de cativar e motivar, de desenvolver uma boa relação com os estudantes, ser disponível e acessível, compreensivo e tolerante, de relacionar a teoria com a prática, sendo exigente, assíduo e pontual.En el proceso de enseñanza/aprendizaje centrado en el estudiante desde un enfoque de mejora continua y de crecimiento con calidad y relevancia, el Consejo de Calidad y Evaluación de la Escuela de Enfermería de Coímbra consideró pertinente conocer la opinión de los estudiantes acerca del perfil del “buen profesor”. En este contexto, se desarrolló un estudio con el objetivo de identificar la opinión de los estudiantes acerca de las características que lo distinguen. Se trata de un estudio cualitativo, mediante cuestionario auto administrado con una pregunta abierta “lo que consideras que sea un buen profesor” y la identificación del curso. La muestra consta de 174 estudiantes de grado y 52 de especialización y posgrado en Enfermería. Del conjunto de indicadores de un “buen profesor”, resalta: el dominio de los

  4. 40 CFR 409.30 - Applicability; description of the liquid cane sugar refining subcategory.

    Science.gov (United States)

    2010-07-01

    ... liquid cane sugar refining subcategory. 409.30 Section 409.30 Protection of Environment ENVIRONMENTAL... Cane Sugar Refining Subcategory § 409.30 Applicability; description of the liquid cane sugar refining... cane sugar into liquid refined sugar. ...

  5. Mineralogia e geoquímica de perfis de solo com Terra Preta Arqueológica de Bom Jesus do Tocantins, sudeste da Amazônia Mineralogy and geochemistry of soil profiles with Archeological Black Earth from Bom Jesus do Tocantins, southeastern Amazon

    Directory of Open Access Journals (Sweden)

    Any Kelly Terra da Silva

    2012-01-01

    Full Text Available A comparação de dados morfológicos, mineralógicos e químicos de solo com horizontes antrópicos - Terra Preta Arqueológica (TPA com Argissolos adjacentes permitiu identificar os principais processos responsáveis pela formação da TPA em um sítio arqueológico no Município de Bom Jesus do Tocantins, sudeste do Estado do Pará. A similaridade entre os dados dos horizontes subsuperficiais do solo com TPA e solos adjacentes indica que o horizonte antrópico do solo TPA foi provavelmente desenvolvido a partir de um horizonte similar aos Argissolos adjacentes com posterior transformação pedogenética através da introdução de materiais orgânicos e inorgânicos por antigas colonizações humanas, resultando no espessamento do horizonte superficial e em concentrações maiores de CaO e P2O5 (teores totais, Zn (teor traço, P e Zn disponível (teores disponíveis, além de Ca e Mg trocáveis (teores trocáveis em relação aos Argissolos adjacentes. Além disso, essa intervenção antrópica antiga também provocou modificações no horizonte subsuperficial do Argissolo com TPA, como concentrações altas de P2O5 e principalmente P disponível. O Soil Taxonomy e o Sistema Brasileiro de Classificação de Solos (SiBCS são adequados para a identificação de solo com horizonte antrópico (p.exe. TPA, uma vez que priorizam nas ordens do solo os principais processos pedogenéticos atuantes na formação do solo, relacionados aos horizontes subsuperficiais, além das transformações pedogenéticas posteriores no horizonte superficial. Contudo, este trabalho recomenda o acréscimo de alguns atributos diagnósticos como quantidade de artefatos cerâmicos e líticos, P2O5, P e Zn disponíveis, C orgânico, Ca2++ Mg2+ (teores trocáveis, CTC e índice de saturação por bases no horizonte superficial para o agrupamento e distinção dos diversos tipos de solos antrópicos antigos da Amazônia.The comparison of morphological, mineralogical and

  6. A CSP Account of Event-B Refinement

    Directory of Open Access Journals (Sweden)

    Heike Wehrheim

    2011-06-01

    Full Text Available Event-B provides a flexible framework for stepwise system development via refinement. The framework supports steps for (a refining events (one-by-one, (b splitting events (one-by-many, and (c introducing new events. In each of the steps events can moreover possibly be anticipated or convergent. All such steps are accompanied with precise proof obligations. Still, it remains unclear what the exact relationship - in terms of a behaviour-oriented semantics - between an Event-B machine and its refinement is. In this paper, we give a CSP account of Event-B refinement, with a treatment for the first time of splitting events and of anticipated events. To this end, we define a CSP semantics for Event-B and show how the different forms of Event-B refinement can be captured as CSP refinement.

  7. Refinement of an Organizational Skills Intervention for Adolescents with ADHD for Implementation by School Mental Health Providers.

    Science.gov (United States)

    Langberg, Joshua M; Vaughn, Aaron J; Williamson, Pamela; Epstein, Jeffery N; Girio-Herrera, Erin; Becker, Stephen P

    2011-09-01

    The purpose of the study was to modify, test, and refine the Homework, Organization, and Planning Skills (HOPS) intervention for adolescents with ADHD for use by school mental health (SMH) providers. Ten SMH providers from three school districts implemented the HOPS intervention with 11 middle school students with ADHD. Parent and teacher ratings of materials organization and homework management were collected pre- and post-intervention and treatment fidelity was assessed. SMH providers and teachers participated in focus groups and provided feedback on ways to improve the feasibility and usability of the HOPS intervention. Students made large improvements in organization skills ( d = 1.8) and homework problems ( d = 1.6) according to parent ratings however, no improvements were observed on teacher ratings. Qualitative data generated from coding the focus groups and audio-recorded HOPS sessions were combined with the quantitative results to systematically refine the HOPS intervention for further evaluation of intervention effectiveness and disseminability.

  8. Parallel adaptive mesh refinement for electronic structure calculations

    Energy Technology Data Exchange (ETDEWEB)

    Kohn, S.; Weare, J.; Ong, E.; Baden, S.

    1996-12-01

    We have applied structured adaptive mesh refinement techniques to the solution of the LDA equations for electronic structure calculations. Local spatial refinement concentrates memory resources and numerical effort where it is most needed, near the atomic centers and in regions of rapidly varying charge density. The structured grid representation enables us to employ efficient iterative solver techniques such as conjugate gradients with multigrid preconditioning. We have parallelized our solver using an object-oriented adaptive mesh refinement framework.

  9. A refinement methodology for object-oriented programs

    OpenAIRE

    Tafat , Asma; Boulmé , Sylvain; Marché , Claude

    2010-01-01

    International audience; Refinement is a well-known approach for developing correct-byconstruction software. It has been very successful for producing high quality code e.g., as implemented in the B tool. Yet, such refinement techniques are restricted in the sense that they forbid aliasing (and more generally sharing of data-structures), which often happens in usual programming languages. We propose a sound approach for refinement in presence of aliases. Suitable abstractions of programs are d...

  10. Institutions in OpenRefine: Cleaning up messes

    OpenAIRE

    Smith, Arthur

    2018-01-01

    OpenRefine (formerly Google Refine) is a tool for cleaning up messy data, but it is also well-suited to cross-linking different identifiers through their metadata entries. I will share some experiences in using OpenRefine to interlink GRID, ISNI, Wikidata, and our own internal institution identifiers. This matching process also highlights metadata errors (including duplicates and incorrect merges) in the different sources, and can help improve data quality on all sides. (Updated to full versi...

  11. Maintaining Information Flow Security under Refinement and Transformation

    OpenAIRE

    Seehusen, Fredrik; Stølen, Ketil

    2006-01-01

    - We address the problem of maintaining information flow security under refinement and transformation. To this end we define a schema for the specification of secure information flow properties and show that all security properties defined in the schema are preserved by a notion of refinement. Refinement is a process that requires human guidance and is in general not subject for automation. A transformation on the other hand, is an executable function mapping specifications to specificatio...

  12. Mirror of the refined topological vertex from a matrix model

    CERN Document Server

    Eynard, B

    2011-01-01

    We find an explicit matrix model computing the refined topological vertex, starting from its representation in terms of plane partitions. We then find the spectral curve of that matrix model, and thus the mirror symmetry of the refined vertex. With the same method we also find a matrix model for the strip geometry, and we find its mirror curve. The fact that there is a matrix model shows that the refined topological string amplitudes also satisfy the remodeling the B-model construction.

  13. Solving the Sophistication-Population Paradox of Game Refinement Theory

    OpenAIRE

    Xiong , Shuo; Tiwary , Parth ,; Iida , Hiroyuki

    2016-01-01

    Part 4: Short Papers; International audience; A mathematical model of game refinement was proposed based on uncertainty of game outcome. This model has been shown to be useful in measuring the entertainment element in the domains such as boardgames and sport games. However, game refinement theory has not been able to explain the correlation between the popularity of a game and the game refinement value. This paper introduces another aspect in the study of game entertainment, the concept of “a...

  14. New Process for Grain Refinement of Aluminum. Final Report; FINAL

    International Nuclear Information System (INIS)

    Megy, Joseph A.

    2000-01-01

    A new method of grain refining aluminum involving in-situ formation of boride nuclei in molten aluminum just prior to casting has been developed in the subject DOE program over the last thirty months by a team consisting of JDC, Inc., Alcoa Technical Center, GRAS, Inc., Touchstone Labs, and GKS Engineering Services. The Manufacturing process to make boron trichloride for grain refining is much simpler than preparing conventional grain refiners, with attendant environmental, capital, and energy savings. The manufacture of boride grain refining nuclei using the fy-Gem process avoids clusters, salt and oxide inclusions that cause quality problems in aluminum today

  15. Architectural Refinement for the Design of Survivable Systems

    National Research Council Canada - National Science Library

    Ellison, Robert

    2001-01-01

    This paper describes a process for systematically refining an enterprise system architecture to resist recognize and recover from deliberate, malicious attacks by applying reusable design primitives...

  16. New Process for Grain Refinement of Aluminum. Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Dr. Joseph A. Megy

    2000-09-22

    A new method of grain refining aluminum involving in-situ formation of boride nuclei in molten aluminum just prior to casting has been developed in the subject DOE program over the last thirty months by a team consisting of JDC, Inc., Alcoa Technical Center, GRAS, Inc., Touchstone Labs, and GKS Engineering Services. The Manufacturing process to make boron trichloride for grain refining is much simpler than preparing conventional grain refiners, with attendant environmental, capital, and energy savings. The manufacture of boride grain refining nuclei using the fy-Gem process avoids clusters, salt and oxide inclusions that cause quality problems in aluminum today.

  17. Crystallographic refinement by simulated annealing: Application to crambin

    International Nuclear Information System (INIS)

    Bruenger, A.T.; Yale Univ., New Haven, CT; Harvard Univ., Cambridge, MA; Karplus, M.; Petsko, G.A.

    1989-01-01

    A detailed description of the method of crystallographic refinement by simulated annealing is presented. To test the method, it has been applied to a 1.5 A resolution X-ray structure of crambin. The dependence of the success of the simulated annealing protocol with respect to the temperature of the heating stage is discussed. Optimal success is achieved at relatively high temperatures. Regardless of the protocol used, the molecular-dynamics refined structure always yields an improved R factor compared with restrained least-squares refinement without manual re-fitting. The differences between the various refined structures and the corresponding electron density maps are discussed. (orig.)

  18. Refining clean fuels for the future

    International Nuclear Information System (INIS)

    Courty, P.; Gruson, J.F.

    2001-01-01

    To which extent transportation fuels will reasonably be changed in the coming years? LPG and natural gas are expected to challenge conventional fuels, hydrogen and methanol are bounded to possible fuel cells development. Among others, security of supply, competitive economics and environmental protection issues will be the key to the changes in the coming years. But taking into account expected transportation development, liquid fuels from oil should prevail as the reference energy. Though most of technologies and catalysts needed for the future are still existing or under marketing plans, the industry has to cope with the growing share of middle distillates. Indeed future zero heavy fuel-oil refineries are technically feasible through many existing and recent technologies. However their potential profitability is weighed down deeply by the very high investments and operating costs which are tied up. Tomorrow's main gasoline challenges deal with sulfur in FCC gasoline, aromatics and olefins contents together with a possible ban of ethers, hampering future octane demand and its technical feasibility. In a similar way diesel oil issues for the future imply a very deep desulfurization with possible aromatics hydrogenation and rings opening in order to comply with cetane and poly-aromatics ratings. Natural gas upgrading via syngas chemistry is still expected to open the way to clean fuels for the future via improved and integrated FT's GTL technologies which could as a matter provide most of future increases in clean fuels demand without decreasing the related fatal carbon losses as CO 2 . As an overall view, clean fuels production for the future is technically feasible. Advanced hydro-refining and hydro-conversion technologies open the way to clean fuels and allow the best flexibility in the gasoline/middle distillates ratio. However cost reduction remains a key issue since the huge investments needed are faced with low and volatile refining margins. In addition, CO 2

  19. Linear Prediction Using Refined Autocorrelation Function

    Directory of Open Access Journals (Sweden)

    M. Shahidur Rahman

    2007-07-01

    Full Text Available This paper proposes a new technique for improving the performance of linear prediction analysis by utilizing a refined version of the autocorrelation function. Problems in analyzing voiced speech using linear prediction occur often due to the harmonic structure of the excitation source, which causes the autocorrelation function to be an aliased version of that of the vocal tract impulse response. To estimate the vocal tract characteristics accurately, however, the effect of aliasing must be eliminated. In this paper, we employ homomorphic deconvolution technique in the autocorrelation domain to eliminate the aliasing effect occurred due to periodicity. The resulted autocorrelation function of the vocal tract impulse response is found to produce significant improvement in estimating formant frequencies. The accuracy of formant estimation is verified on synthetic vowels for a wide range of pitch frequencies typical for male and female speakers. The validity of the proposed method is also illustrated by inspecting the spectral envelopes of natural speech spoken by high-pitched female speaker. The synthesis filter obtained by the current method is guaranteed to be stable, which makes the method superior to many of its alternatives.

  20. Refining and blending of aviation turbine fuels.

    Science.gov (United States)

    White, R D

    1999-02-01

    Aviation turbine fuels (jet fuels) are similar to other petroleum products that have a boiling range of approximately 300F to 550F. Kerosene and No.1 grades of fuel oil, diesel fuel, and gas turbine oil share many similar physical and chemical properties with jet fuel. The similarity among these products should allow toxicology data on one material to be extrapolated to the others. Refineries in the USA manufacture jet fuel to meet industry standard specifications. Civilian aircraft primarily use Jet A or Jet A-1 fuel as defined by ASTM D 1655. Military aircraft use JP-5 or JP-8 fuel as defined by MIL-T-5624R or MIL-T-83133D respectively. The freezing point and flash point are the principle differences between the finished fuels. Common refinery processes that produce jet fuel include distillation, caustic treatment, hydrotreating, and hydrocracking. Each of these refining processes may be the final step to produce jet fuel. Sometimes blending of two or more of these refinery process streams are needed to produce jet fuel that meets the desired specifications. Chemical additives allowed for use in jet fuel are also defined in the product specifications. In many cases, the customer rather than the refinery will put additives into the fuel to meet their specific storage or flight condition requirements.

  1. FPGA Congestion-Driven Placement Refinement

    Energy Technology Data Exchange (ETDEWEB)

    Vicente de, J.

    2005-07-01

    The routing congestion usually limits the complete proficiency of the FPGA logic resources. A key question can be formulated regarding the benefits of estimating the congestion at placement stage. In the last years, it is gaining acceptance the idea of a detailed placement taking into account congestion. In this paper, we resort to the Thermodynamic Simulated Annealing (TSA) algorithm to perform a congestion-driven placement refinement on the top of the common Bounding-Box pre optimized solution. The adaptive properties of TSA allow the search to preserve the solution quality of the pre optimized solution while improving other fine-grain objectives. Regarding the cost function two approaches have been considered. In the first one Expected Occupation (EO), a detailed probabilistic model to account for channel congestion is evaluated. We show that in spite of the minute detail of EO, the inherent uncertainty of this probabilistic model impedes to relieve congestion beyond the sole application of the Bounding-Box cost function. In the second approach we resort to the fast Rectilinear Steiner Regions algorithm to perform not an estimation but a measurement of the global routing congestion. This second strategy allows us to successfully reduce the requested channel width for a set of benchmark circuits with respect to the widespread Versatile Place and Route (VPR) tool. (Author) 31 refs.

  2. Refining the ischemic penumbra with topography.

    Science.gov (United States)

    Thirugnanachandran, Tharani; Ma, Henry; Singhal, Shaloo; Slater, Lee-Anne; Davis, Stephen M; Donnan, Geoffrey A; Phan, Thanh

    2018-04-01

    It has been 40 years since the ischemic penumbra was first conceptualized through work on animal models. The topography of penumbra has been portrayed as an infarcted core surrounded by penumbral tissue and an extreme rim of oligemic tissue. This picture has been used in many review articles and textbooks before the advent of modern imaging. In this paper, we review our understanding of the topography of the ischemic penumbra from the initial experimental animal models to current developments with neuroimaging which have helped to further define the temporal and spatial evolution of the penumbra and refine our knowledge. The concept of the penumbra has been successfully applied in clinical trials of endovascular therapies with a time window as long as 24 h from onset. Further, there are reports of "good" outcome even in patients with a large ischemic core. This latter observation of good outcome despite having a large core requires an understanding of the topography of the penumbra and the function of the infarcted regions. It is proposed that future research in this area takes departure from a time-dependent approach to a more individualized tissue and location-based approach.

  3. Refined Pichia pastoris reference genome sequence

    Science.gov (United States)

    Sturmberger, Lukas; Chappell, Thomas; Geier, Martina; Krainer, Florian; Day, Kasey J.; Vide, Ursa; Trstenjak, Sara; Schiefer, Anja; Richardson, Toby; Soriaga, Leah; Darnhofer, Barbara; Birner-Gruenberger, Ruth; Glick, Benjamin S.; Tolstorukov, Ilya; Cregg, James; Madden, Knut; Glieder, Anton

    2016-01-01

    Strains of the species Komagataella phaffii are the most frequently used “Pichia pastoris” strains employed for recombinant protein production as well as studies on peroxisome biogenesis, autophagy and secretory pathway analyses. Genome sequencing of several different P. pastoris strains has provided the foundation for understanding these cellular functions in recent genomics, transcriptomics and proteomics experiments. This experimentation has identified mistakes, gaps and incorrectly annotated open reading frames in the previously published draft genome sequences. Here, a refined reference genome is presented, generated with genome and transcriptome sequencing data from multiple P. pastoris strains. Twelve major sequence gaps from 20 to 6000 base pairs were closed and 5111 out of 5256 putative open reading frames were manually curated and confirmed by RNA-seq and published LC-MS/MS data, including the addition of new open reading frames (ORFs) and a reduction in the number of spliced genes from 797 to 571. One chromosomal fragment of 76 kbp between two previous gaps on chromosome 1 and another 134 kbp fragment at the end of chromosome 4, as well as several shorter fragments needed re-orientation. In total more than 500 positions in the genome have been corrected. This reference genome is presented with new chromosomal numbering, positioning ribosomal repeats at the distal ends of the four chromosomes, and includes predicted chromosomal centromeres as well as the sequence of two linear cytoplasmic plasmids of 13.1 and 9.5 kbp found in some strains of P. pastoris. PMID:27084056

  4. Worldsheet Realization of the Refined Topological String

    CERN Document Server

    Antoniadis, I; Hohenegger, S; Narain, K S; Assi, A Zein

    2013-01-01

    A worldsheet realization of the refined topological string is proposed in terms of physical string amplitudes that compute generalized N=2 F-terms of the form F_{g,n} W^{2g}Y^{2n} in the effective supergravity action. These terms involve the chiral Weyl superfield W and a superfield Y defined as an N=2 chiral projection of a particular anti-chiral T-bar vector multiplet. In Heterotic and Type I theories, obtained upon compactification on the six-dimensional manifold K3xT2, T is the usual K\\"ahler modulus of the T2 torus. These amplitudes are computed exactly at the one-loop level in string theory. They are shown to reproduce the correct perturbative part of the Nekrasov partition function in the field theory limit when expanded around an SU(2) enhancement point of the string moduli space. The two deformation parameters epsilon_- and epsilon_+ of the Omega-supergravity background are then identified with the constant field-strength backgrounds for the anti-self-dual graviphoton and self-dual gauge field of the...

  5. Water Refining By the Membrane Separation Method

    Directory of Open Access Journals (Sweden)

    Zdenka Bolanca

    2000-03-01

    Full Text Available The investigations in this paper refer to the possibility of wastewater refining from deinking flotation process by the method of membrane separation. The offset impressions made with the conventional printing inks as wellas the models based on the raw materials of renewable origin were used in the recycling process. Before andafter the water treatment, the concentration of the sulphate, chloride, nitrate, total organic substance, oxygenconsumption, pH and electric conductivity was determinedin all the samples by standard analytical methods.The results point at the dependence of the concentration of the investigated inorganic and organic pollution with the characteristics of the prints used in the recycling process. The concentration decrease of the investigated pollution using the method of the membrane separation in relation to the boundary values of the water quality necessary for the paper production has been discussed. Besides the specific scientific contribution, the practical application of the investigation is the contribution to the closing of water circuit in paper production.

  6. Oil Production, Refining and Transportation in Canada

    Directory of Open Access Journals (Sweden)

    Igbal A. Guliyev

    2015-01-01

    Full Text Available The article deals with fuel and energy complex of Canada as one of the largest manufacturers of primary energy in the world, which provides up to 6 percent of the world energy supply. Only the Russian Federation, PRC, the United States of America and the Kingdom of Saudi Arabia have larger production volumes. However, oil plays the most significant role in Canada's energy exports. It is estimated that its proven reserves are sufficient to meet the demand for 140 years at current production rate. The relevance of the study, including the analysis of fuel and energy complex of Canada, is due to the fact that such comparison and synthesis of data on the amount of recoverable oil reserves, the volume of its production, imports, exports and transit of oil and oil products, the distribution of oil for transportation (via pipelines, rail, sea, road, strategic oil field, refining and transportation of oil and oil products development projects, as well as implementation of Canada's best practices in the Russian Federation, is being developed for the first time. In addition, the data given in previously published articles on the subject, due to the dynamic development of the industry, are obsolete and do not reflect the real situation.

  7. Industrial District as a Corporation

    Directory of Open Access Journals (Sweden)

    Reza MOHAMMADY GARFAMY

    2011-03-01

    Full Text Available This paper provides a comparison study of industrial districts in two European countries, Spain and Sweden, using the conceptual framework of corporation. The relevance of this approach is based on the specific qualities that the industrial districts have, including the preexisting conditions, local traditions, products and production characteristics, marketing strategies, local policies and present challenges. The findings indicate the ways in which different patterns of inter-firm relationships, organization of production and dynamics of local alliances have shaped divergent regional responses to the industrial construction.

  8. District heating in greater Stockholm

    International Nuclear Information System (INIS)

    In Greater Stockholm more than ten municipalities operate more or less extensive district heating networks, whereas a couple of municipalities have still not decided in principle what form of heating will be employed in the future. About 1,2 million people live and work in these municipalities, which together occupy an area of about 1500 km 2 . In this general survey the planning of the extensive work in the municipalities and the alternatives of heat systems in Greater Stockholm, including large integrated district heating systems based on nuclear dual-purpose plants as well as systems based on fossil fuels and several combined plants are discussed. (M.S.)

  9. Statistical Physics Approach to Political Districting Problem

    Science.gov (United States)

    Chou, Chung-I.; Li, Sai-Ping

    The Political Districting Problem is to partition a zone into several electoral districts subject to some constraints such as contiguity, population equality, etc. In this paper, we apply statistical physics methods to Political Districting Problem. This political problem is mapped to a q-state Potts model system, and the political constraints are written in the form of an energy function with the interactions between sites or external fields acting on the system. Districting into q voter districts is equivalent to finding the ground state of this q-state Potts model. We illustrate this problem by districting Taipei city and compare it to a computer-generated artificial system.

  10. Future Services for District Heating Solutions in Residential Districts

    Directory of Open Access Journals (Sweden)

    Hannele Ahvenniemi

    2014-06-01

    Full Text Available The underlying assumption of this study is that in order to retain the competitiveness while reaching for the EU targets regarding low-energy construction, district heating companies need to develop new business and service models. How district heating companies could broaden their perspective and switch to a more service-oriented way of thinking is a key interest of our research. The used methods in our study are house builder interviews and a questionnaire. With the help of these methods we discussed the potential interest in heating related services acquiring a comprehensive understanding of the customer needs. The results indicate the importance of certain criteria when choosing the heating system in households: easiness, comfort and affordability seem to dominate the house builders’ preferences. Also environmental awareness seems to be for many an important factor when making a decision about the heating of the house. Altogether, based on the results of this study, we suggest that the prospects of district heating could benefit from highlighting certain aspects and strengths in the future. District heating companies need to increase flexibility, readiness to adopt new services, to invest in new marketing strategies and improving the communication skills.

  11. Investment in exploration-production and refining 2015

    International Nuclear Information System (INIS)

    Maisonnier, G.; Hureau, G.; Serbutoviez, S.; Silva, C.

    2016-01-01

    IFPEN analyses in this study the 2015 evolution of global investment in the field of exploration-production and refining: - Changes in oil and gas prices; - Investment in Exploration/Production: the end of an upward cycle; - Drilling and the global drilling market, upstream activities and markets; - 2015, a breath of fresh air for refining

  12. Refinement-Based Student Modeling and Automated Bug Library Construction.

    Science.gov (United States)

    Baffes, Paul; Mooney, Raymond

    1996-01-01

    Discussion of student modeling and intelligent tutoring systems focuses on the development of the ASSERT algorithm (Acquiring Stereotypical Student Errors by Refining Theories). Topics include overlay modeling; bug libraries (databases of student misconceptions); dynamic modeling; refinement-based modeling; and experimental results from tests at…

  13. The Development and Refinement of a Questionnaire on the ...

    African Journals Online (AJOL)

    The Development and Refinement of a Questionnaire on the Investigation of Students' Experience of First-Year Chemistry Practicals. ... refinement of a questionnaire for first-year Chemistry students. Three subscales were probed, namely affective attitudes, perceptions towards tutor effectiveness and outcomes achieved.

  14. Cavitation-aided grain refinement in aluminium alloys

    NARCIS (Netherlands)

    Atamanenko, T.V.

    2010-01-01

    This thesis deals with grain refinement under the influence of ultrasonic-driven cavitation in aluminium casting processes. Three major goals of this research were: (1) to identify the mechanism of the cavitation-aided grain refinement at different stages of solidification; (2) to reveal the

  15. Local grid refinement for free-surface flow simulations

    NARCIS (Netherlands)

    van der Plas, Peter

    2017-01-01

    The principal goal of the current study is to explore and investigate the potential of local grid refinement for increasing the numerical efficiency of free-surface flow simulations in a practical context. In this thesis we propose a method for local grid refinement in the free-surface flow model

  16. RBT—A Tool for Building Refined Buneman Trees

    DEFF Research Database (Denmark)

    Besenbacher, Søren; Mailund; Westh-Nielsen, Lasse

    2005-01-01

    We have developed a tool implementing an efficient algorithm for refined Buneman tree reconstruction. The algorithm—which has the same complexity as the neighbour-joining method and the (plain) Buneman tree construction—enables refined Buneman tree reconstruction on large taxa sets....

  17. Refined analysis results for multimedia network costs and profits

    DEFF Research Database (Denmark)

    Tahkokorpi, M.; Falch, Morten; Skouby, Knud Erik

    This deliverable describes the techno-economic business model developed in EURORIM WP3 and presents the refined results of the multimedia service delivery cost-profit calculations......This deliverable describes the techno-economic business model developed in EURORIM WP3 and presents the refined results of the multimedia service delivery cost-profit calculations...

  18. Mathematical aspects of Rietveld refinement and crystal structure ...

    Indian Academy of Sciences (India)

    Administrator

    Bond lengths and angles are calculated using the cell parameters. Using the Rietveld refinement parameters a stable PbTiO3 structure is suggested. Keywords. Rietveld; PbTiO3; XRD; oxides. 1. Introduction. Rietveld refinement technique is a standard treatment of powder diffraction data to make the final structural model.

  19. Grain refining efficiency of Al-Ti-C alloys

    International Nuclear Information System (INIS)

    Birol, Yuecel

    2006-01-01

    The problems associated with boride agglomeration and the poisoning effect of Zr in Zr-bearing alloys have created a big demand for boron-free grain refiners. The potential benefits of TiC as a direct nucleant for aluminium grains have thus generated a great deal of interest in TiC-bearing alloys in recent years. In Al-Ti-C grain refiners commercially available today, Al 3 Ti particles are introduced into the melt along with the TiC particles. Since the latter are claimed to nucleate α-Al directly, it is of great technological interest to see if reducing the Ti:C ratio further, i.e., increasing the C content of the grain refiner, will produce an increase in the grain refining efficiency of these alloys. A series of grain refiner samples with the Ti concentration fixed at 3% and a range of C contents between 0 and 0.75 were obtained by appropriately mixing an experimental Al-3Ti-0.75C alloy with Al-10Ti alloy and commercial purity aluminium. The grain refining efficiency of these grain refiners was assessed to investigate the role of the insoluble TiC and the soluble Al 3 Ti particles. The optimum chemistry for the Al-Ti-C grain refiners was also identified

  20. Grain refining efficiency of Al-Ti-C alloys

    Energy Technology Data Exchange (ETDEWEB)

    Birol, Yuecel [Materials Institute, Marmara Research Center, TUBITAK, 41470 Gebze, Kocaeli (Turkey)]. E-mail: yucel.birol@mam.gov.tr

    2006-09-28

    The problems associated with boride agglomeration and the poisoning effect of Zr in Zr-bearing alloys have created a big demand for boron-free grain refiners. The potential benefits of TiC as a direct nucleant for aluminium grains have thus generated a great deal of interest in TiC-bearing alloys in recent years. In Al-Ti-C grain refiners commercially available today, Al{sub 3}Ti particles are introduced into the melt along with the TiC particles. Since the latter are claimed to nucleate {alpha}-Al directly, it is of great technological interest to see if reducing the Ti:C ratio further, i.e., increasing the C content of the grain refiner, will produce an increase in the grain refining efficiency of these alloys. A series of grain refiner samples with the Ti concentration fixed at 3% and a range of C contents between 0 and 0.75 were obtained by appropriately mixing an experimental Al-3Ti-0.75C alloy with Al-10Ti alloy and commercial purity aluminium. The grain refining efficiency of these grain refiners was assessed to investigate the role of the insoluble TiC and the soluble Al{sub 3}Ti particles. The optimum chemistry for the Al-Ti-C grain refiners was also identified.

  1. Semi-solid rheocasting of grain refined aluminum alloy 7075

    CSIR Research Space (South Africa)

    Curle, UA

    2010-09-01

    Full Text Available Near-net shape rheocasting with the Council for Scientific and Industrial Research Rheo casting system(CSIR–RCS) and a high pressure die casting machine was successfully performed on Al–5Ti–1B grain refined aluminum alloy 7075. Grain refinement...

  2. Grain refinement of AZ31 magnesium alloy by electromagnetic ...

    Indian Academy of Sciences (India)

    ... effect on the grain size of AZ31 magnesium alloy under the effect of Al4C3 grain refiner. Electromagnetic stirring can `activate' the Al4C3 particles, resulting in more heterogeneous nucleation sites for the primary -Mg grains. But, longer holding time can `deactivate' the Al4C3 particles and poison the grain refining effect.

  3. Integration with U.S. refining

    International Nuclear Information System (INIS)

    Boslett, T.

    2007-01-01

    The production of crude in western Canada is expected to increase significantly in the next 10 to 15 years as the development of oil sands leases continues. In particular, large-scale investments by major oil sands producers have focused on upgrading bitumen to light synthetic crude oil. Major refinery projects in the United States will take advantage of substantially lower capital costs to increase bitumen processing capabilities. In addition, by 2008, new pipeline projects will provide western Canada with more export capacity. The BP Energy Company is investing US$3 billion to increase the refining capacity of Canadian heavy crude at its refinery in Whiting, Indiana, which already has pipeline connectivity and long-term product placement capabilities. The project, which is scheduled to begin in 2011, will increase heavy blend processing capability to 260 thousand barrels per day and produce more than 1.7 million gallons of motor fuel per day. BP's investment has focused on the hydrogen unit, gas oil hydrotreater, hydrotreater revamps, a coker, a modular sulfur recovery unit, a sour water stripper complex, and 62 miles of piping. The refinery in Indiana has an experienced workforce and a greater availability of labor than in western Canada. Production forecasts indicate varying levels of heavy and light production, depending on the amount of condensate imports available. The project team will ensure that the refinery can handle the various levels of total acid number (TAN), sulfur and solids contained in Canadian heavy oils. The project risks are associated with uncertainties regarding production growth and quality; inflation risk as developments costs continue to rise for projects in Alberta; and regulatory risk that can impact bitumen cost. tabs., figs

  4. Refining the Jurassic Magnetic Quiet Zone

    Science.gov (United States)

    Tominaga, M.; Tivery, M.; Sager, W. W.

    2016-12-01

    We present a coherent marine magnetic reversal record from the Pacific to refine the Jurassic Quiet Zone (JQZ). Our definitive magnetic anomaly record consists of high-resolution sea surface, mid-water (3-km level deep-towed), and near-bottom profiles (0.1-km to the seafloor) with the magnetic source layer constrained by gravity anomaly data and reflection and refraction seismics, all of which are newly collected during TN272 and SKQ2014S2 cruises. All magnetic anomaly data were corrected diurnal variations and the present-day ambient geomagnetic field. In comparing our three-level JQZ magnetic anomaly profiles with previous work in the Japanese lineations, we confirm a globally coherent anomaly sequence in the JQZ from M29 to M42, including the distinctive amplitude envelope decreasing back in time from M19 to M38, with a minimum at M41, and then increasing back in time. A strong similarity in the M37/M38 polarity attributes found both in magnetostratigraphic and marine magnetic records suggest that rapid magnetic reversals were occurring during the M38 time in the JQZ. Seismic and gravity profiles from the Hawaiian JQZ seafloor show late-stage Cretaceous volcanism thickening crust by up to 150% with extra melt emplaced at the Moho, and numerous sills and volcanic cones in the sediment and on the seafloor. The region of thickest crust in the Hawaiian lineation corridor coincides with the region of the lowest JQZ anomaly amplitudes, very similar to the Low Amplitude Zone of Japanese lineation sequence, suggesting that the JQZ anomaly character can represent changes in geomagnetic field intensity over time but is free of the effects of Cretaceous volcanic overprint. We conducted inversion modeling to establish polarity block models and to estimate reversal rates. Reversal rates are the highest during periods with the lowest anomaly amplitudes, indicating a unique period of geomagnetic field behavior in the Earth's history.

  5. Glueball masses from the refined Gribov propagator

    Energy Technology Data Exchange (ETDEWEB)

    Capri, M.A.L. [Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropedica, RJ (Brazil); Dudal, D.; Vandersickel, N. [Ghent University (Belgium); Gomez, A.J.; Guimaraes, M.S.; Lemes, V.E.R.; Sorella, S.P.; Tedesco, D.G. [Universidade do Estado do Rio de Janeiro (UERJ), RJ (Brazil)

    2011-07-01

    Full text: The quantum description of the non-abelian Yang-Mills theory at low energy scales is a long standing unsolved problem. This is a confining theory, meaning that the physical degrees of freedom are not described by the fundamental fields appearing in its defining action functional. The physical states are thus created by composite fields operators. In the pure Yang-Mills theory the fundamental, non-physical, excitations are the gluons and the physical states are named as glueballs and are created by gauge invariant operators. Recent results coming from lattice simulations of the Yang-Mills theory points to a gluon propagator which violates positivity and tends to a constant non-zero value at zero-momentum. The best fitting for this behavior is provided by a propagator whose analytic form describes the propagation of complex mass excitations, the so-called i-particles. These are supposed to be the low energy, confined, non-physical gluons. This propagator coincides with the one derived from the Refined Gribov-Zwanziger (RGZ) theory, which takes into account nonperturbative physics related to gauge copies and dimension two condensates. In this work we construct local, gauge invariant, composite operators with the quantum numbers of the lightest glueball states J{sup PC} = 0{sup ++}; 0{sup -+}; 2{sup ++}. The correlation functions of these operators are evaluated by employing a lattice input for the mass scales of the low energy RGZ gluon propagator. We obtain for the glueball masses, in the lowest order approximation, the values m{sub 0++} {approx} 1.96 GeV, m{sub 0-+} {approx} 2.19 GeV, m{sub 2++} {approx} 2.04 GeV, in the SU(3) case, all within a 20% range of the corresponding lattice values. We also recover the mass hierarchy m{sub 0++} < m{sub 2++} < m{sub 0-+}.(author)

  6. Dyadic wavelets and refinable functions on a half-line

    International Nuclear Information System (INIS)

    Protasov, V Yu; Farkov, Yu A

    2006-01-01

    For an arbitrary positive integer n refinable functions on the positive half-line R + are defined, with masks that are Walsh polynomials of order 2 n -1. The Strang-Fix conditions, the partition of unity property, the linear independence, the stability, and the orthonormality of integer translates of a solution of the corresponding refinement equations are studied. Necessary and sufficient conditions ensuring that these solutions generate multiresolution analysis in L 2 (R + ) are deduced. This characterizes all systems of dyadic compactly supported wavelets on R + and gives one an algorithm for the construction of such systems. A method for finding estimates for the exponents of regularity of refinable functions is presented, which leads to sharp estimates in the case of small n. In particular, all the dyadic entire compactly supported refinable functions on R + are characterized. It is shown that a refinable function is either dyadic entire or has a finite exponent of regularity, which, moreover, has effective upper estimates.

  7. El Niño/La Niña e sua influência no número de dias com chuva em Bom Jesus – Piauí, Brasil

    Directory of Open Access Journals (Sweden)

    Raimundo Mainar Medeiros

    2016-04-01

    Full Text Available Em Bom Jesus, as características da variabilidade temporal da precipitação são provenientes de diversos sistemas meteorológicos atuantes. É comum a ausência de chuvas durante períodos prolongados, ocasionando graves problemas para a sociedade, agropecuários e nos ecossistemas naturais. Objetiva-se analisar a relação entre o número de dias com chuva e a precipitação no município em estudo compreendido entre o período de 1960-2014 e suas influencias entre os fenômenos Niño(a, utilizou-se dos dados diários de precipitações dos anos de 1960 a 2014 fornecido pela Superintendência do Desenvolvimento do Nordeste (SUDENE e pela Empresa de extensão rural do Estado do Piauí (EMTERPI. A utilização do pacote estatística em planilhas eletrônicas para elaboração de gráficos com a variabilidade mensal dos dias com ocorrências de chuvas (DCC. Além dos dados citados, foram usados os dados de intensidade do fenômeno ENOS, obtidos do Serviço Climatológico Nacional dos Estados Unidos - NOAA referente ao mesmo período. As análises foram feitas para todos os meses do ano em estudo do município de Bom Jesus, gerando informações que servirão de indicativo para uso adequado da água para a agropecuária, irrigação, geração de energia, recursos hídricos e naturais e o abastecimento de água urbano/rural e a economia local. A análise do acervo de dados de 1960 a 2014 permitiram finalizar que: Nos anos onde a precipitação foi abaixo da média (984,8 mm, ocorreram melhor distribuição temporal dos índices pluviométricos, ao oposto de quando choveu acima da média. Ocorreu incremento na precipitação e no número de dias com chuva no 1° trimestre do ano; enquanto que no 2° e 4° trimestre ocorre redução tanto da precipitação como do número de dias de chuva, os números de dias com chuvas extremas que estiveram acima ou abaixo da média não foram explicitamente associados ao fenômeno ENOS.El Niño/La Ni

  8. Nankana West District of Ghana

    African Journals Online (AJOL)

    Agribotix GCS 077

    information from Assembly members to community members and inadequate financial resources for the District ..... situations where multiple groups share a common resource that is fixed in nature, the chance that each will .... the Navrongo Health Research Centre (NHRC), a lottery method was used to select houses from.

  9. Nation, Districts Step up Safety

    Science.gov (United States)

    Shah, Nirvi

    2013-01-01

    President Barack Obama's announcement last week of a wide-ranging anti-violence plan in response to the Newtown, Connecticut, school shootings comes as many districts are adopting new and sometimes dramatic measures--including arming teachers and volunteers--intended to prevent similar tragedies in their own schools. School safety experts warn…

  10. Marketing Techniques for School Districts.

    Science.gov (United States)

    Lane, John J., Ed.

    Development of marketing plans can assist not only public school districts in meeting recent competition but will also improve educational processes, increase revenue, and restore confidence in schools. This collection of articles describes a new role for school administrators--particulary for business managers: administrators as "entrepreneurs."…

  11. Accounting Systems for School Districts.

    Science.gov (United States)

    Atwood, E. Barrett, Jr.

    1983-01-01

    Advises careful analysis and improvement of existing school district accounting systems prior to investment in new ones. Emphasizes the importance of attracting and maintaining quality financial staffs, developing an accounting policies and procedures manual, and designing a good core accounting system before purchasing computer hardware and…

  12. Location - Managed Facility - St. Paul District (MVP)

    Data.gov (United States)

    Army Corps of Engineers, Department of the Army, Department of Defense — St. Paul District - US Army Corps of Engineers Managed Facility locations. District headquarters, Natural Resource, Recreation, Lock and Dam, and Regulatory offices...

  13. VT Data - Overlay District 20170228, Richmond

    Data.gov (United States)

    Vermont Center for Geographic Information — The following overlay districts are included in the data:Shoreline Protection OverlayFlood Hazard OverlayDetails about these overlay districts, as well as zoning...

  14. U.S. Coast Guard (USCG) Districts

    Data.gov (United States)

    Department of Homeland Security — This layer is a polygonal dataset that represents land and maritime boundaries for each representative United States Coast Guard district, which includes district 1,...

  15. Your District Deserves an Audit Committee

    Science.gov (United States)

    Schaupp, Frederick W.; Maust, Robert S.

    1974-01-01

    A school district audit committee has the capacity to unearth pertinent information about the operating efficiency and effectiveness of a school district, as well as providing a more professional audit. (Author/WM)

  16. 75 FR 35778 - Modesto Irrigation District and Turlock Irrigation District; Notice of Preliminary Permit...

    Science.gov (United States)

    2010-06-23

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 12745-002] Modesto Irrigation District and Turlock Irrigation District; Notice of Preliminary Permit Application Accepted for... February 1, 2010, Modesto Irrigation District and Turlock Irrigation District filed an application for a...

  17. Sharing Local Revenue: One District's Perspective

    Science.gov (United States)

    Cline, David S.

    2011-01-01

    The vast majority of U.S. school districts are considered independent and have taxing authority; the remaining districts rely on revenue and budgetary approval from their local government. In the latter case, localities often use some form of negotiated process to determine the amount of revenue their school districts will receive. Typically, a…

  18. 7 CFR 982.31 - Grower districts.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Grower districts. 982.31 Section 982.31 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements... importance of production in each district and the number of growers in each district; (2) the geographic...

  19. 7 CFR 920.12 - District.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false District. 920.12 Section 920.12 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements... Definitions § 920.12 District. District means the applicable one of the following described subdivisions of...

  20. Groundwater and geothermal: urban district heating applications

    Energy Technology Data Exchange (ETDEWEB)

    Mounts, R.; Frazier, A.; Wood, E.; Pyles, O.

    1982-01-01

    This report describes how several cities use groundwater and geothermal energy in district heating systems. It begins with groundwater, introducing the basic technology and techniques of development, and describing two case studies of cities with groundwater-based district heating systems. The second half of the report consists of three case studies of cities with district heating systems using higher temperature geothermal resources.

  1. The Phantom Mandate: District Capacity for Reform.

    Science.gov (United States)

    Florian, Judy; Hange, Jane; Copeland, Glenda

    Nearly every state focuses on implementing standards-based systems but supports educational reform in as many different ways as there are states. An examination of 15 districts located in 13 states suggests, however, that some states and districts have policies and practices in common that support a district's capacity for reform, whether there is…

  2. 7 CFR 983.11 - Districts.

    Science.gov (United States)

    2010-01-01

    ... Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements..., ARIZONA, AND NEW MEXICO Definitions § 983.11 Districts. (a) Districts shall consist of the following: (1... States of Arizona and New Mexico. (b) With the approval of the Secretary, the boundaries of any district...

  3. The Philadelphia School District's Ongoing Financial Crisis

    Science.gov (United States)

    Caskey, John; Kuperberg, Mark

    2014-01-01

    This article describes the budget crisis that the School District of Philadelphia has faced for the past few years. Three specific events triggered the 2012 crisis: an abrupt reduction in federal and state funding, the inability of the district to cut many of its costs, and political pressures on the district to spend available revenues in a given…

  4. Total antioxidant content of alternatives to refined sugar.

    Science.gov (United States)

    Phillips, Katherine M; Carlsen, Monica H; Blomhoff, Rune

    2009-01-01

    Oxidative damage is implicated in the etiology of cancer, cardiovascular disease, and other degenerative disorders. Recent nutritional research has focused on the antioxidant potential of foods, while current dietary recommendations are to increase the intake of antioxidant-rich foods rather than supplement specific nutrients. Many alternatives to refined sugar are available, including raw cane sugar, plant saps/syrups (eg, maple syrup, agave nectar), molasses, honey, and fruit sugars (eg, date sugar). Unrefined sweeteners were hypothesized to contain higher levels of antioxidants, similar to the contrast between whole and refined grain products. To compare the total antioxidant content of natural sweeteners as alternatives to refined sugar. The ferric-reducing ability of plasma (FRAP) assay was used to estimate total antioxidant capacity. Major brands of 12 types of sweeteners as well as refined white sugar and corn syrup were sampled from retail outlets in the United States. Substantial differences in total antioxidant content of different sweeteners were found. Refined sugar, corn syrup, and agave nectar contained minimal antioxidant activity (syrup, brown sugar, and honey showed intermediate antioxidant capacity (0.2 to 0.7 mmol FRAP/100 g). Based on an average intake of 130 g/day refined sugars and the antioxidant activity measured in typical diets, substituting alternative sweeteners could increase antioxidant intake an average of 2.6 mmol/day, similar to the amount found in a serving of berries or nuts. Many readily available alternatives to refined sugar offer the potential benefit of antioxidant activity.

  5. Segmental Refinement: A Multigrid Technique for Data Locality

    KAUST Repository

    Adams, Mark F.

    2016-08-04

    We investigate a domain decomposed multigrid technique, termed segmental refinement, for solving general nonlinear elliptic boundary value problems. We extend the method first proposed in 1994 by analytically and experimentally investigating its complexity. We confirm that communication of traditional parallel multigrid is eliminated on fine grids, with modest amounts of extra work and storage, while maintaining the asymptotic exactness of full multigrid. We observe an accuracy dependence on the segmental refinement subdomain size, which was not considered in the original analysis. We present a communication complexity analysis that quantifies the communication costs ameliorated by segmental refinement and report performance results with up to 64K cores on a Cray XC30.

  6. Oil refining and product marketing developments in southeast Asia

    International Nuclear Information System (INIS)

    Szabo, A.M.

    1992-01-01

    Views on the future are based on supplies from a relatively stable Middle East and continued economic growth in the southeast Asian and Pacific countries. Under these circumstances the oil market for the Association of Southeast Asian Nations (ASEAN) will expand considerably during the decade of the 90's. Pacific country demand, 5.92 MMB/D, in 1990 is likely to grow to 7.06 MMB/D in 2000. Regional production could supply about 40% of this. The Asia-Pacific shortage of refining capacity could lead to high regional refined product prices and health refining profit margins. (author)

  7. Effect of refining on quality and composition of sunflower oil

    OpenAIRE

    Pal, U. S.; Patra, R. K.; Sahoo, N. R.; Bakhara, C. K.; Panda, M. K.

    2014-01-01

    An experimental oil refining unit has been developed and tested for sunflower oil. Crude pressed sunflower oil obtained from a local oil mill was refined using chemical method by degumming, neutralization, bleaching and dewaxing. The quality and composition of crude and refined oil were analysed compared. Reduction in phosphorous content from 6.15 ppm to 0, FFA content from 1.1 to 0.24 % (oleic acid), peroxide value from 22.5 to 7.9 meq/kg, wax content from 1,420 to 200 ppm and colour absorba...

  8. RETRACTED ARTICLE: Microstructural evolution of AA7449 aerospace alloy refined by intensive shearing

    Science.gov (United States)

    Haghayeghi, R.; Nastac, L.

    2012-10-01

    Many aerospace alloys are sensitive to their composition thus cannot be chemically grain refined. In addition, only 1% grain refiners can act as nuclei for refining the structure. In this paper, physical refinement by intensive shearing above liquidus as an alternative technique will be investigated for AA7449 aerospace alloy. The results can open a new gateway for aerospace industry for refining their microstructure.

  9. "Boa noite, bom dia HUAP!", uma experiência de humanização na formação de profissionais da área de saúde

    Directory of Open Access Journals (Sweden)

    Pedro Gemal Lanzieri

    2011-03-01

    Full Text Available "Boa noite, bom dia HUAP!" é um Projeto de Extensão da Universidade Federal Fluminense, cuja proposta é: contribuir para a humanização da formação na área de saúde, facilitando a integração de estudantes de diferentes cursos, a aquisição de competências comunicacionais, capacidade para cuidar e melhor lidar com a afetividade; contribuir para a recuperação e melhor qualidade do período de hospitalização de clientes do Hospital Universitário Antônio Pedro. São realizadas três intervenções por semana nas enfermarias, ocasiões em que os participantes são estimulados a interagir com a clientela por meio do diálogo e de atividades lúdicas criativas. Este trabalho avalia a contribuição do projeto na formação dos estudantes mediante os significados atribuídos pelos mesmos a essa experiência. Os relatos mostram que, apesar das dificuldades iniciais para lidar com sentimentos e emoções, as atividades têm proporcionado aos estudantes experiências consideradas gratificantes e importantes para sua formação.

  10. CARACTERÍSTICAS MORFOLÓGICAS E MORFOMÉTRICAS DOS CANAIS DE DRENAGEM DA BACIA HIDROGRÁFICA DO RIO BOM SUCESSO - SEMIÁRIDO DA BAHIA/BRASIL

    Directory of Open Access Journals (Sweden)

    Kleber Carvalho Lima

    2014-04-01

    Full Text Available Propõe-se neste artigo, analisar as características dos canais de drenagem intermitentes e efêmeros da Bacia Hidrográfica do Rio Bom Sucesso (Bahia, levando-se em consideração os seus aspectos morfológicos e morfométricos. Para tanto, definiu-se a rede de drenagem, caracterizaram-se os canais de drenagem, classificaram-se os cursos fluviais quanto à textura do canal e aplicaram-se os índices morfométricos. Por meio disso, verificou-se que a bacia possui baixa densidade de drenagem e baixa densidade hidrográfica, baixo potencial para a elaboração de formas de origem fluvial. Predomina o transporte de sedimentos por carga de fundo, o que demonstra a relação existente entre o regime fluvial e os eventos pluviométricos de grande magnitude, típicos do semiárido. Além disso, as características geométricas dos canais demonstram o predomínio da erosão lateral em contraponto à erosão vertical do relevo.

  11. Architectural Refinement for the Design of Survivable Systems

    National Research Council Canada - National Science Library

    Ellison, Robert

    2001-01-01

    ...; that is, have no central administration and no unified security policy. The survivable architecture refinement is an iterative risk-driven process which adopts the structure of Boehm's Spiral Model Boehm 88...

  12. Pakistan stepping up expansion of refining, transportation sectors

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This paper reports that Pakistan is taking steps to speed expansion of its refining and oil transportation infrastructure. While the country has made significant progress toward energy self-efficiency by boosting oil and gas production it still must modernize and expand an aging, inadequate refining sector to meet rapidly growing demand for refined products. Pakistan's government has disclosed plans to build two refineries in the country, one at Rawalpindi near a string of recent oil discoveries, the other somewhere in the southern part of the country, likely Karachi. At the same time, efforts are proceeding to upgrade Pakistan's refineries. In addition, Pakistani state companies continue to press joint ventures in refining and marketing with foreign companies and expand downstream ties with neighbors that are key oil and gas exporters

  13. The Refined Lecture Hall Theorem via Abacus Diagrams

    OpenAIRE

    Bradford, Laura; Harris, Meredith; Jones, Brant; Komarinski, Alex; Matson, Carly; O'Shea, Edwin

    2012-01-01

    Bousquet-M\\'elou & Eriksson's lecture hall theorem generalizes Euler's celebrated distinct-odd partition theorem. We present an elementary and transparent proof of a refined version of the lecture hall theorem using a simple bijection involving abacus diagrams.

  14. Modified process for refining niobium by electron beam

    International Nuclear Information System (INIS)

    Pinatti, D.G.; Takano, C.

    1982-01-01

    The experimental results, thermodynamic equilibrium and kinetic theory of the metal/gas interaction in refractory metals are reviewed. The adsorption and desorption of nitrogen, hydrogen and CO are reversible, whereas those of oxygen are irreversible, with adsorption of an oxygen atom and volatilisation of the metal oxide. Based upon this fact, a new electron beam refining technology is proposed for niobium, consisting of four points: preparation of an electrode by aluminothermic reduction; zone refining in the first melt; kinetic refining in subsequent melts and compact design of the refining plant. Experimental results from a 300 kW pilot plant were in complete agreement with the technology proposed, giving 2.4 times the productivity predicted by the conventional technology. (Author) [pt

  15. ADAPTIVE MODEL REFINEMENT FOR THE IONOSPHERE AND THERMOSPHERE

    Data.gov (United States)

    National Aeronautics and Space Administration — ADAPTIVE MODEL REFINEMENT FOR THE IONOSPHERE AND THERMOSPHERE ANTHONY M. D’AMATO∗, AARON J. RIDLEY∗∗, AND DENNIS S. BERNSTEIN∗∗∗ Abstract. Mathematical models of...

  16. Refined mapping of loss of heterozygosity in Chinese sporadic ...

    African Journals Online (AJOL)

    GREGORY

    2010-08-30

    loss of heterozygosity), the loss of one paternal or maternal allele at specific locus on tumor suppressor genes ... while genome-wide scan and refined mapping were .... (D) Non-informative cases: microsatellites instable (MSI).

  17. Rack gasoline and refining margins - wanted: a summer romance

    Energy Technology Data Exchange (ETDEWEB)

    1988-04-13

    For the first time since late 1987, apparent refining margins on the US benchmark crude oil (based on spot purchase prices) are virtually zero. This felicitous bit of news comes loaded with possibilities of positive (maybe even good.) margins in coming months, if the differential between crude buying prices and the value of the refined barrel continues to improve. What refiners in the US market are watching most closely right now are motorists. This issue also contains the following: (1) ED refining netback data for the US Gulf and Western Coasts, Rotterdam, and Singapore, prices for early April 1988; and (2) ED fuel price/tax series for countries of the Western Hemisphere, April 1988 edition. 5 figures, 5 tables.

  18. P-Refinement and P-Threads (Preprint)

    National Research Council Canada - National Science Library

    Dong, Steven; Karniadakis, George E

    2002-01-01

    ...]) in d dimensions, which is higher than lower-order methods. In this paper, we demonstrate that by employing multi-threading within MPI processes we manage to counter- balance the cost increase associated with P-refinement...

  19. Distributed successive refinement of multiview images using broadcast advantage.

    Science.gov (United States)

    Chen, Zichong; Barrenetxea, Guillermo; Vetterli, Martin

    2012-11-01

    In environmental monitoring applications, having multiple cameras focus on common scenery increases robustness of the system. To save energy based on user demand, successive refinement image coding is important, as it allows us to progressively request better image quality. By exploiting the broadcast nature and correlation between multiview images, we investigate a two-camera setup and propose a novel two-encoder successive refinement scheme which imitates a ping-pong game. For the bivariate Gaussian case, we prove that this scheme is successively refinable on the theoretical rate-distortion limit of distributed coding (Wagner surface) under arbitrary settings. For stereo-view images, we develop a practical successive refinement coding algorithm using the same idea. The simulation results show that this scheme operates close to the distributed coding bound.

  20. Determinants of profitability differences among major refiner/marketers

    Energy Technology Data Exchange (ETDEWEB)

    1985-01-01

    This report attempts to shed light on the factors affecting the differing profitabilities among companies, particularly, the effect of refinery upgrading, to contribute toward a better understanding of the performance of the domestic petroleum refining industry. The determinants of domestic refining-marketing profitability in the short run are evaluated. The focus is on those factors affecting the profitability of operations using the existing capital stock. Of particular interest is the effect on profitability of investments made for refinery upgrading. The refining-marketing segment is assumed to be operated to maximize profits of that segment rather than the profits of some other segment. The cost and financial data used in the analysis are proprietary line-of-business data from the FRS. The FRS provides detailed information on refining-marketing revenue, cost, income, and investment. The specific data used are discussed and key definitions provided later in this report. 14 refs., 1 fig., 2 tabs.

  1. Japan`s refiner/marketers headed for major shakeout

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-08-26

    Japan`s downstream oil industry is in a state of crisis and headed for a major shakeout. The major catalyst for this was a dramatic deregulation step during April 1996 that allowed refined petroleum product imports by non-refiners. The move, together with a sharp drop in refining margins, falling retail gasoline prices, and a service station sector on the brink of collapse, are all leading to massive changes in the way the country`s refiners and marketers do business. This paper reviews the collapse of corporate profits during this period of deregulation; the development of a new price system geared toward bringing the prices of gasoline, fuel oil, and kerosene into line with each other to offset the fall in gasoline prices; and industry restructuring including mergers, acquisitions, and marketing consolidation. The paper then makes predictions on the outcome of these changes on the Japanese oil industry.

  2. CITGO Petroleum Corporation and PDV Midwest Refining, LLC Settlement

    Science.gov (United States)

    CITGO Petroleum Corporation and PDV Midwest Refining, LLC (collectively, CITGO) have agreed to pay a $1,955,000 civil penalty, perform environmental projects totaling more than $2 million, and spend an estimated $42 million in injunctive relief to resolve.

  3. Production, Refining, Structural Characterization and Fermentability of Rice Husk Xylooligosaccharides

    NARCIS (Netherlands)

    Gullon, P.; Gonzales-Munoz, M.J.; Gool, van M.P.; Schols, H.A.; Hirsch, J.; Ebringerova, A.; Rarajo, J.C.

    2010-01-01

    Oligosaccharides produced by hydrothermal processing of rice husks (xylooligosaccharides and glucooligosaccharides) were refined by membrane processing (operating in diafiltration and concentration modes), subjected to xylanase treatment to reduce the average molar mass, and subjected to further

  4. Nuclear power for district heating

    International Nuclear Information System (INIS)

    Lyon, R.B.; Sochaski, R.O.

    1975-09-01

    Current district heating trends are towards an increasing use of electricity. This report concerns the evaluation of an alternative means of energy supply - the direct use of thermal energy from CANDU nuclear stations. The energy would be transmitted via a hot fluid in a pipeline over distances of up to 40 km. Advantages of this approach include a high utilization of primary energy, with a consequent reduction in installed capacity, and load flattening due to inherent energy storage capacity and transport delays. Disadvantages include the low load factors for district heating, the high cost of the distribution systems and the necessity for large-scale operation for economic viability. This requirement for large-scale operation from the beginning could cause difficulty in the implementation of the first system. Various approaches have been analysed and costed for a specific application - the supply of energy to a district heating load centre in Toronto from the location of the Pickering reactor station about 40 km away. (author)

  5. Asian oil refining. Demand growth and deregulation - an uncertain future

    International Nuclear Information System (INIS)

    Sameer Nawaz.

    1996-01-01

    The objective of the report is to identify the most important features of the oil refining industry in Asia. Major developments in consumption patterns changes in regional importance of countries are discussed, highlighting potential future developments. The first chapter introduces the various refining processes and presents a simple model for the analysis of complex refineries. Chapter 2 examines the development of the Asian refining industry against a background of economic growth and analyses trends in consumption of all products in Asian countries. In Chapter 3, the key issues concerning the refining industry are examined, among them the forces driving consumption, including the importance of economic development, and electricity and transport demand. The importance of product imports and international trade is discussed, and the extent of government involvement and the effects of changing retail and market prices are analysed. Chapter 4 looks at the strategies that oil and gas companies are following in the Asian refining industry. Particular significance is attached to the vertical integration of the oil majors, Japanese and Middle Eastern oil companies. A brief overview of the importance of the petrochemical industry is presented. The countries of Asia that are involved in the refining industry are profiled in Chapter 5. The future trend in oil consumption is examined in Chapter 6. There follows a brief discussion of the plans to expand crude refining capacity in the various countries and a forecast of the state of overcapacity which will result. In the final chapter, brief profiles of some of the most important companies in the Asian refining industry are presented, discussing their major activities and future plans. (Author)

  6. A CSP Account of Event-B Refinement

    OpenAIRE

    Heike Wehrheim; Helen Treharne; Steve Schneider

    2011-01-01

    Event-B provides a flexible framework for stepwise system development via refinement. The framework supports steps for (a) refining events (one-by-one), (b) splitting events (one-by-many), and (c) introducing new events. In each of the steps events can moreover possibly be anticipated or convergent. All such steps are accompanied with precise proof obligations. Still, it remains unclear what the exact relationship - in terms of a behaviour-oriented semantics - between an Event-B machine and i...

  7. Refined Fuchs inequalities for systems of linear differential equations

    International Nuclear Information System (INIS)

    Gontsov, R R

    2004-01-01

    We refine the Fuchs inequalities obtained by Corel for systems of linear meromorphic differential equations given on the Riemann sphere. Fuchs inequalities enable one to estimate the sum of exponents of the system over all its singular points. We refine these well-known inequalities by considering the Jordan structure of the leading coefficient of the Laurent series for the matrix of the right-hand side of the system in the neighbourhood of a singular point

  8. Reverse mechanical after effect during hydrogenation of zone refined iron

    Energy Technology Data Exchange (ETDEWEB)

    Spivak, L.V.; Skryabina, N.E.; Kurmaeva, L.D.; Smirnov, L.V. (Permskij Gosudarstvennyj Univ. (USSR); AN SSSR, Sverdlovsk. Inst. Fiziki Metallov)

    1984-12-01

    The relationship between the process of hydrogenation and the reverse mechanical after effect (RMA) microplastic deformation in the zone refined iron has been studied. Metallographic investigations and mechanical testing of the samples hydrogenated under torsional strain have been performed. It is shown that in the zone refined iron the formation of voids responsible for irreversible hydrogen embrittlement does not occur, but the hydrogen-initiated RMA strain is conserved, i. e. the RMA effects are independent of the presence of discontinuities.

  9. Melt refining of uranium contaminated copper, nickel, and mild steel

    International Nuclear Information System (INIS)

    Ren Xinwen; Liu Wencang; Zhang Yuan

    1993-01-01

    This paper presents the experiment results on melt refining of uranium contaminated metallic discards such as copper, nickel, and mild steel. Based on recommended processes, uranium contents in ingots shall decrease below 1 ppm; metal recovery is higher than 96%; and slag production is below 5% in weight of the metal to be refined. The uranium in the slag is homogeneously distributed. The slag seems to be hard ceramics, insoluble in water, and can be directly disposed of after proper packaging

  10. The Relationship between Student Achievement, School District Economies of Scale, School District Size, and Student Socioeconomic Status

    Science.gov (United States)

    Trani, Randy

    2009-01-01

    The relationships between student achievement, school district economies of scale, school district size and student socioeconomic status were measured for 131 school districts in the state of Oregon. Data for school districts ranging in size from districts with around 300 students to districts with more than 40,000 students were collected for…

  11. Effect of refining on quality and composition of sunflower oil.

    Science.gov (United States)

    Pal, U S; Patra, R K; Sahoo, N R; Bakhara, C K; Panda, M K

    2015-07-01

    An experimental oil refining unit has been developed and tested for sunflower oil. Crude pressed sunflower oil obtained from a local oil mill was refined using chemical method by degumming, neutralization, bleaching and dewaxing. The quality and composition of crude and refined oil were analysed compared. Reduction in phosphorous content from 6.15 ppm to 0, FFA content from 1.1 to 0.24 % (oleic acid), peroxide value from 22.5 to 7.9 meq/kg, wax content from 1,420 to 200 ppm and colour absorbance value from 0.149 to 0.079 (in spectrophotometer at 460 nm) were observed from crude to refined oil. It was observed that refining did not have significant effect on fatty acid compositions as found in the percentage peak area in the GC-MS chromatogram. The percentage of unsaturated fatty acid in both the oils were recorded to be about 95 % containing 9-Octadecenoic acid (Oleic acid) and 11,14-Eicosadienoic acid (elongated form of linoleic acid). The research results will be useful to small entrepreneurs and farmers for refining of sunflower oil for better marketability.

  12. On macromolecular refinement at subatomic resolution with interatomic scatterers

    Energy Technology Data Exchange (ETDEWEB)

    Afonine, Pavel V., E-mail: pafonine@lbl.gov; Grosse-Kunstleve, Ralf W.; Adams, Paul D. [Lawrence Berkeley National Laboratory, One Cyclotron Road, BLDG 64R0121, Berkeley, CA 94720 (United States); Lunin, Vladimir Y. [Institute of Mathematical Problems of Biology, Russian Academy of Sciences, Pushchino 142290 (Russian Federation); Urzhumtsev, Alexandre [IGMBC, 1 Rue L. Fries, 67404 Illkirch and IBMC, 15 Rue R. Descartes, 67084 Strasbourg (France); Faculty of Sciences, Nancy University, 54506 Vandoeuvre-lès-Nancy (France); Lawrence Berkeley National Laboratory, One Cyclotron Road, BLDG 64R0121, Berkeley, CA 94720 (United States)

    2007-11-01

    Modelling deformation electron density using interatomic scatters is simpler than multipolar methods, produces comparable results at subatomic resolution and can easily be applied to macromolecules. A study of the accurate electron-density distribution in molecular crystals at subatomic resolution (better than ∼1.0 Å) requires more detailed models than those based on independent spherical atoms. A tool that is conventionally used in small-molecule crystallography is the multipolar model. Even at upper resolution limits of 0.8–1.0 Å, the number of experimental data is insufficient for full multipolar model refinement. As an alternative, a simpler model composed of conventional independent spherical atoms augmented by additional scatterers to model bonding effects has been proposed. Refinement of these mixed models for several benchmark data sets gave results that were comparable in quality with the results of multipolar refinement and superior to those for conventional models. Applications to several data sets of both small molecules and macromolecules are shown. These refinements were performed using the general-purpose macromolecular refinement module phenix.refine of the PHENIX package.

  13. Validation and refinement of the Millennium Criteria for atopic dermatitis.

    Science.gov (United States)

    Schram, Mandy E; Leeflang, Mariska M G; DEN Ottolander, Jan Paul S; Spuls, Phyllis I; Bos, Jan D

    2011-09-01

    There is no gold standard for a definite diagnosis of atopic dermatitis. For the time being, several lists of diagnostic criteria have been proposed, some of them in actual use. The Millennium Criteria have been proposed to diagnose atopic dermatitis and to differentiate it from atopiform dermatitis. Our aim was to further refine the Millennium Criteria into a manageable set that can differentiate between atopic and atopiform dermatitis and other entities. The hereby refined Millennium Criteria will be compared with the UK Working Party Criteria and the Hanifin & Rajka Criteria. Data of 210 included patients were used. After multiple logistic regression, a minimum set of five criteria was identified as best discriminators: (i) typical morphology; (ii) early age of onset; (iii) Dennie-Morgan fold; (iv) historical and (v) actual flexural involvement. The refined Millennium Criteria were constituted from these criteria. When comparing the different list for validity in diagnosing atopic dermatitis, the refined Millennium Criteria showed a sensitivity of 81.8% and a specificity of 98.8% compared to a sensitivity of 97.7% and specificity of 72.9% of the UK Criteria and a sensitivity of 100% and specificity of 48.8% of the Hanifin & Rajka Criteria. This refinement and validity study shows that the refined Millennium Criteria are a valid tool to diagnose atopic and atopiform dermatitis in a hospital-based setting and therefore could be incorporated in clinical practice and trials. © 2011 Japanese Dermatological Association.

  14. Refinement of RAIM via Implementation of Implicit Euler Method

    International Nuclear Information System (INIS)

    Lee, Yoonhee; Kim, Han-Chul

    2016-01-01

    The first approach is a mechanistic approach which is used in LIRIC in which more than 200 reactions are modeled in detail. This approach enables to perform the detailed analysis. However, it requires huge computation burden. The other approach is a simplified model approach which is used in the IMOD, ASTEC/IODE, and etc. Recently, KINS has developed RAIM (Radio-Active Iodine chemistry Model) based on the simplified model approach. Since the numerical analysis module in RAIM is based on the explicit Euler method, there are major issues on the stability of the module. Therefore, implementation of a stable numerical method becomes essential. In this study, RAIM is refined via implementation of implicit Euler method in which the Newton method is used to find the solutions at each time step. The refined RAIM is tested by comparing to RAIM based on the explicit Euler method. In this paper, RAIM was refined by implementing the implicit Euler method. At each time step of the method in the refined RAIM, the reaction kinetics equations are solved by the Newton method in which elements of the Jacobian matrix are expressed analytically. With the results of OECD-BIP P10T2 test, the refined RAIM was compared to RAIM with the explicit Euler method. The refined RAIM shows better agreement with the experimental data than those from the explicit Euler method. For the rapid change of pH during the experiment, the refined RAIM gives more realistic changes in the concentrations of chemical species than those from the explicit Euler method. In addition, in terms of computing time, the refined RAIM shows comparable computing time to that with explicit Euler method. These comparisons are attributed to ⁓10 times larger time step size used in the implicit Euler method, even though computation burden at each time step in the refined RAIM is much higher than that of the explicit Euler method. Compared to the experimental data, the refined RAIM still shows discrepancy, which are attributed

  15. district.

    African Journals Online (AJOL)

    Dujardin B, Haelterman E, Van Damme W, Kegels G. The adequacy of one sputum smear for diagnosing pulmonary tuberculosis. Am J Pubi Hlth 1997; 87: 1234-1235. 16. Narain R, Nair SS, Naganna К, Chandrasekhar P, Ramanatha Rao G, Lai P. Problems in defining a "case" of pulmonary tuberculosis in prevalence ...

  16. Electromyogram refinement using muscle synergy based regulation of uncertain information.

    Science.gov (United States)

    Min, Kyuengbo; Shin, Duk; Lee, Jongho; Kakei, Shinji

    2018-04-27

    Electromyogram signal (EMG) measurement frequently experiences uncertainty attributed to issues caused by technical constraints such as cross talk and maximum voluntary contraction. Due to these problems, individual EMGs exhibit uncertainty in representing their corresponding muscle activations. To regulate this uncertainty, we proposed an EMG refinement, which refines EMGs with regulating the contribution redundancy of the signals from EMGs to approximating torques through EMG-driven torque estimation (EDTE) using the muscular skeletal forward dynamic model. To regulate this redundancy, we must consider the synergistic contribution redundancy of muscles, including "unmeasured" muscles, to approximating torques, which primarily causes redundancy of EDTE. To suppress this redundancy, we used the concept of muscle synergy, which is a key concept of analyzing the neurophysiological regulation of contribution redundancy of muscles to exerting torques. Based on this concept, we designed a muscle-synergy-based EDTE as a framework for EMG refinement, which regulates the abovementioned uncertainty of individual EMGs in consideration of unmeasured muscles. In achieving the proposed EMG refinement, the most considerable point is to suppress a large change such as overestimation attributed to enhancement of the contribution of particular muscles to estimating torques. Therefore it is reasonable to refine EMGs by minimizing the change in EMGs. To evaluate this model, we used a Bland-Altman plot, which quantitatively evaluates the proportional bias of refined signals to EMGs. Through this evaluation, we showed that the proposed EDTE minimizes the bias while approximating torques. Therefore this minimization optimally regulates the uncertainty of EMGs and thereby leads to optimal EMG refinement. Copyright © 2018 Elsevier Ltd. All rights reserved.

  17. Rehabilitation of district heating networks

    Energy Technology Data Exchange (ETDEWEB)

    Ottosson, Peter [AaF-Energikonsult Syd AB (Sweden)

    1996-11-01

    Often the choice is between reparation or exchange of a damaged section of the network. If the exchange is based on the wrong assumptions, large sections of undamaged pipelines could be removed. Most important for the district heating company is to decide which strategy to use for the future exchange of the pipelines. Whichever strategy used, it has to based on an assessment of the network and/or assumptions based on that assessment. The question if it is possible extend the life span of the pipelines arises. What is the most economical choice, the exchange or the renovation. (au)

  18. Use of intensity quotients and differences in absolute structure refinement

    International Nuclear Information System (INIS)

    Parsons, Simon; Flack, Howard D.; Wagner, Trixie

    2013-01-01

    Differences and quotients can be defined using Friedel pairs of reflections and applied in refinement to enable absolute structure to be determined precisely even for light atom crystal structures. Several methods for absolute structure refinement were tested using single-crystal X-ray diffraction data collected using Cu Kα radiation for 23 crystals with no element heavier than oxygen: conventional refinement using an inversion twin model, estimation using intensity quotients in SHELXL2012, estimation using Bayesian methods in PLATON, estimation using restraints consisting of numerical intensity differences in CRYSTALS and estimation using differences and quotients in TOPAS-Academic where both quantities were coded in terms of other structural parameters and implemented as restraints. The conventional refinement approach yielded accurate values of the Flack parameter, but with standard uncertainties ranging from 0.15 to 0.77. The other methods also yielded accurate values of the Flack parameter, but with much higher precision. Absolute structure was established in all cases, even for a hydrocarbon. The procedures in which restraints are coded explicitly in terms of other structural parameters enable the Flack parameter to correlate with these other parameters, so that it is determined along with those parameters during refinement

  19. The future of refining industry is in Asia

    International Nuclear Information System (INIS)

    Dupin, L.

    2010-01-01

    The decision of Total Group to close down the refining activity of its Flandres' site at Dunkerque (France) is a testimony of the deep restructuring that is affecting this sector. The migration of the refining activity towards Middle-East and Asia has started several years ago. The World capacities are increasing: in 2009 4.36 billion tons of petroleum products were refined in the world, representing a 1.9% rise with respect to 2008. 661 refineries exist in the world, among which 6 were inaugurated in 2009, 115 are located in Europe and 12 in France. The bad health of the European refining activity is beneficial to Middle and Asia where investments in new production capacities follow on from one another. From now to 2030, these areas will benefit from 70% of the worldwide investments compared to 11% only for Europe and North America. The decline of the European refining industry is directly linked to decay of the automotive fuel consumption and to the increase of the diesel fuel share with respect to gasoline. On the other hand, Asia, and in particular China and India, follow the exactly opposite trend thanks to their population and economic growths. Therefore, European oil companies try to invest in Asia and are looking for new production capacities in China and India. (J.S.)

  20. Adaptive mesh refinement for shocks and material interfaces

    Energy Technology Data Exchange (ETDEWEB)

    Dai, William Wenlong [Los Alamos National Laboratory

    2010-01-01

    There are three kinds of adaptive mesh refinement (AMR) in structured meshes. Block-based AMR sometimes over refines meshes. Cell-based AMR treats cells cell by cell and thus loses the advantage of the nature of structured meshes. Patch-based AMR is intended to combine advantages of block- and cell-based AMR, i.e., the nature of structured meshes and sharp regions of refinement. But, patch-based AMR has its own difficulties. For example, patch-based AMR typically cannot preserve symmetries of physics problems. In this paper, we will present an approach for a patch-based AMR for hydrodynamics simulations. The approach consists of clustering, symmetry preserving, mesh continuity, flux correction, communications, management of patches, and load balance. The special features of this patch-based AMR include symmetry preserving, efficiency of refinement across shock fronts and material interfaces, special implementation of flux correction, and patch management in parallel computing environments. To demonstrate the capability of the AMR framework, we will show both two- and three-dimensional hydrodynamics simulations with many levels of refinement.

  1. 75 FR 43958 - Turlock Irrigation District and Modesto Irrigation District; Notice of Application for Amendment...

    Science.gov (United States)

    2010-07-27

    ... to the Turlock Irrigation District's Tuolumne Substation; (2) 23-mile-long, 69-kV Don Pedro-Hawkins Line extending from the Don Pedro switchyard to the Turlock Irrigation District's Hawkins Substation...

  2. 4th Generation District Heating (4GDH)

    DEFF Research Database (Denmark)

    Lund, Henrik; Werner, Sven; Wiltshire, Robin

    2014-01-01

    This paper defines the concept of 4th Generation District Heating (4GDH) including the relations to District Cooling and the concepts of smart energy and smart thermal grids. The motive is to identify the future challenges of reaching a future renewable non-fossil heat supply as part...... of the implementation of overall sustainable energy systems. The basic assumption is that district heating and cooling has an important role to play in future sustainable energy systems – including 100 percent renewable energy systems – but the present generation of district heating and cooling technologies will have...

  3. Agricultural Land Use in Ahlat District

    Directory of Open Access Journals (Sweden)

    Necmettin ELMASTAŞ

    2009-12-01

    Full Text Available Ahlat district has suitable topography for growing of agricultural products. Almost half of Ahlat district is suitable for agricultural. Today, 32.7% of the land use in Ahlat is agricultural area. 90% of agricultural area is dry farming area. 10% of agricultural area is irrigated. 60.3%of land use in Ahlat district is pasturage area. The economy of Ahlat is based on agricultural and animal husbandry. Today, agricultural products such as wheat, potato and sugar beet are grown in agricultural areas. Ahlat district has some problems like unplanned production, irrigation and marketing.

  4. District Fiscal Policy and Student Achievement

    Directory of Open Access Journals (Sweden)

    Gary G. Huang

    2002-09-01

    Full Text Available School restructuring raises questions about the role of school districts in improving student learning. Centralization by state governments and decentralization to individual schools as proposed in systemic reform leave districts' role unsettled. Empirical research on the district role in the context of ongoing reform is inadequate. This analysis of combined data from the NAEP and the Common Core of Data (CCD was intended to address the issue. We analyzed 1990, 1992, and 1996 NAEP 8th grade mathematics national assessment data in combination with CCD data of corresponding years to examine the extent to which student achievement was related to districts' control over instructional expenditure, adjusting for relevant key factors at both district and student levels. Upon sample modification, we used hierarchical linear modeling (HLM to estimate the relationships of student achievement to two district fiscal policy indictors, current expenditure per pupil (CEPP and districts' discretionary rates for instructional expenditure (DDR. Net of relevant district factors, DDR was found unrelated to districts' average 8th grade math performance. The null effect was consistent in the analysis of the combined NAEP-CCD data for 1990, 1992, and 1996. In contrast, CEPP was found related to higher math performance in a modest yet fairly consistent way. Future research may be productive to separately study individual states and integrate the findings onto the national level.

  5. Reinstating district nursing: A UK perspective.

    Science.gov (United States)

    Morris, Hannah

    2017-09-01

    As policy directives gather pace for service provision to be delivered in primary care, district nursing has not been recognised as a valuable asset to facilitate this agenda. Investment in district nursing and specialist district nursing education has fallen. This is concurrent with an ageing district nursing workforce, a lack of recruitment and growing caseloads, as district nursing adapts to meet the challenges of the complexities of contemporary healthcare in the community. The district nurse role is complex and multifaceted and includes working collaboratively and creatively to coordinate care. Redressing the shortages of specialist district nurse practitioners with increased numbers of health care support workers will not replace the skill, knowledge, experience required to meet the complex care needs of today's society. District nursing needs to be reinstated as the valuable asset it is, through renewed investment in the service, research development and in specialist practice education. To prevent extinction district nurses need to be able to demonstrate and articulate the complexities and dynamisms of the role to reinstate themselves to their commissioners as a valuable asset for contemporary practice that can meet current health and social care needs effectively. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  6. EXPANSÃO DA FRONTEIRA AGRÍCOLA NOS CERRADOS PIAUIENSES, (DESTERRITORIALIZAÇÃO E OS DESAFIOS PARA O DESENVOLVIMENTO TERRITORIAL: O CASO DO MUNICÍPIO DE BOM JESUS

    Directory of Open Access Journals (Sweden)

    Márcia Regina Soares de Araujo

    2009-01-01

    Full Text Available O município de Bom Jesus ¿ PI vivencia, nos últimos 15 anos, transformações que contribuem para a reorganização do seu espaço rural-urbano e que dizem respeito à instituição da fronteira agrícola para a agropecuária globalizada naquela região dos cerrados do sudoeste piauienses. Analisou-se, portanto, este espaço pela ótica da territorialização-desterritorialização-reterritorialização, processo que exprime apropriação, desapropriação e reapropriação do espaço, no sentido material e simbólico, já que este processo vem causando transformações singulares no âmbito sócio-cultural, econômico e ambiental. Pretendeu-se ainda apreender as representações espaciais acerca dos temas desenvolvimento, meio ambiente e os desafios para o desenvolvimento territorial. Para esta pesquisa, utilizou-se as estratégias metodológicas, 1 Levantamento e análise do material bibliográfico, 2 Pesquisa de campo, considerando os dados primários, observação, entrevistas semi-estruturadas, registro fotográfico, diário de campo, e os dados secundários, levantamento cartográfico e a construção de dados nas instituições, Fundação CEPRO, IBGE, Prefeitura Municipal de Bom Jesus, Organizações da sociedade civil, dentre outras, 3 Elaboração do relatório final da pesquisa. Constatou-se que o Estado, capitais privados nacionais e internacionais ¿ integrantes do sistemas ações ¿ representaram os agentes viabilizadores da dilatação da fronteira agrícola para esta região, mediante a implementação de políticas, programas e investimentos para a região dos cerrados. No âmbito das infra-estruturas, constatou-se a importância de uma rodovia de imposição nacional que articula estes espaços com a região Centro-Sul, embora a malha viária ainda encontre-se deficitária, seja no aspecto das rodovias, aerovias e ferrovias, inclusive dificultando o acesso da comunidade rural ao usufruto de serviços essenciais como educa

  7. The Problem: Low-Achieving Districts and Low-Performing Boards

    Directory of Open Access Journals (Sweden)

    David E. Lee

    2014-10-01

    Full Text Available Effective school districts maintain superintendent and school board collegiality which can foster success and connectedness among members. Delagardelle and Alsbury (2008 found that superintendents and board members are not consistent in their perceptions about the work the board does, and Glass (2007 found that states do not require boards to undergo evaluation for effectiveness. In the current study, 115 board meetings were observed using the School Board Video Project (SBVP survey, which was created in 2012 by researchers to uncover school board meetings’ effectiveness. MANOVA, Univariate ANOVA, and Pearson Chi-Square test results revealed significant differences between low-, medium-, and high-performing districts’ school board meetings. Evidence indicated that low-performing districts’ board meetings were: less orderly; had less time spent on student achievement; lacked respectful and attentive engagement across speakers; had board meeting members who seemed to advance their own agenda; had less effective working relationships among the governance team; had fewer board members who relied on the superintendent for advice and input; had one member, other than the board president, stand out for taking excessive time during meetings; and did not focus on policy items as much as high- and medium-performing school districts. The research concluded that more school board members from low-performing districts needed training to improve their effectiveness. Furthermore, highly refined and target-enhanced school board training programs might lead to lasting governance success and more effective teaming that could improve district, and ultimately, student achievement.

  8. Uranium districts in South Greenland

    International Nuclear Information System (INIS)

    Armour-Brown, A.; Tukiainen, T.; Wallin, B.

    1981-01-01

    A short review is given of reconnaissance work in South Greenland. The work has demonstrated that there are areas in the Motzfeldt centre of at least 1 km 2 with continuously high radioactivity. If the uranium content of these radioactive zones are sufficiently high, then potential ore tonnages could prove to be substantial. The reconnaissance exploration has proved that uranium mineralization is widely distributed in the Narssaq-Narssarssuaq district. It is, no doubt, responsible for the high uranium values in the exploration geochemical samples. Although the size of the pitchblende occurences which have been found so far are small, the high grade of the mineralisation, the great frequency of the fracturing and the evidence for an all pervasive mineralising event over a wide area indicate that there is a good possibility of finding economic mineralisation within the Narssaq-Narssarssuaq area. The area as a whole may, perhaps, be termed a ''uranium mineral district''. As the potential targets are small, only detailed follow-up exploration will establish this. At the same time more detailed work on individual showings, and geological mapping to demonstrate the relative ages of the various petrological and mineralising events, will establish the possible origin of this uranium mineralisation. (author)

  9. Zone refining of sintered, microwave-derived YBCO superconductors

    International Nuclear Information System (INIS)

    Warrier, K.G.K.; Varma, H.K.; Mani, T.V.; Damodaran, A.D.; Balachandran, U.

    1993-07-01

    Post-sintering treatments such as zone melting under thermal gradient has been conducted on sintered YBCO tape cast films. YBCO precursor powder was derived through decomposition of a mixture of nitrates of cations in a microwave oven for ∼4 min. The resulting powder was characterized and made into thin sheets by tape casting and then sintered at 945 C for 5 h. The sintered tapes were subjected to repeated zone refining operations at relatively high speeds of ∼30 mm/h. A microstructure having uniformly oriented grains in the a-b plane throughout the bulk of the sample was obtained by three repeated zone refining operations. Details of precursor preparation, microwave processing and its advantages, zone refining conditions, and microstructural features are presented in this paper

  10. Stability studies on refined soybean oil stored in various conditions

    International Nuclear Information System (INIS)

    Arawande, J.O.; Amoo, I.A.

    2008-01-01

    The 12 months stability study of freshly produced refined soybean oil revealed that refined soybean oil stored in plastic containers in dark was more hydrolytically and oxidatively stable than that stored in other containers in light condition. There was no significant difference at P < 0.05 in free fatty acids and acid value of oil stored under light and dark conditions in tin and glass containers but there was significant difference at P < 0.05 in peroxide value of oil stored in light and dark conditions in all the storage containers. Light increased the degree of oxidative rancidity of refined soybean oil, the most in tin containers, followed by glass containers and the least in plastic containers. (author)

  11. Future prospects for palm oil refining and modifications

    Directory of Open Access Journals (Sweden)

    Gibon Véronique

    2009-07-01

    Full Text Available Palm oil is rich in minor components that impart unique nutritional properties and need to be preserved. In this context, refining technologies have been improved, with the dual temperature deodorizer, the double condensing unit and the ice condensing system. The DOBI is a good tool to assess quality of the crude palm oil and its ability to be properly refined. Specially refined oils open a market for new high quality products (golden palm oil, red palm oil, white soaps, etc.. Palm oil is a good candidate for the multi-step dry fractionation process, aiming to the production of commodity oils and specialty fats (cocoa butter replacers. New technological developments allow quality and yield improvements. Palm oil and fractions are also valuable feedstock for enzymatic interesterification in which applications are for commodity oil (low-trans margarines and shortenings and for special products (cocoa butter equivalents, infant formulation, ….

  12. Error sensitivity to refinement: a criterion for optimal grid adaptation

    Science.gov (United States)

    Luchini, Paolo; Giannetti, Flavio; Citro, Vincenzo

    2017-12-01

    Most indicators used for automatic grid refinement are suboptimal, in the sense that they do not really minimize the global solution error. This paper concerns with a new indicator, related to the sensitivity map of global stability problems, suitable for an optimal grid refinement that minimizes the global solution error. The new criterion is derived from the properties of the adjoint operator and provides a map of the sensitivity of the global error (or its estimate) to a local mesh refinement. Examples are presented for both a scalar partial differential equation and for the system of Navier-Stokes equations. In the last case, we also present a grid-adaptation algorithm based on the new estimator and on the FreeFem++ software that improves the accuracy of the solution of almost two order of magnitude by redistributing the nodes of the initial computational mesh.

  13. Numerical solution of plasma fluid equations using locally refined grids

    International Nuclear Information System (INIS)

    Colella, P.

    1997-01-01

    This paper describes a numerical method for the solution of plasma fluid equations on block-structured, locally refined grids. The plasma under consideration is typical of those used for the processing of semiconductors. The governing equations consist of a drift-diffusion model of the electrons and an isothermal model of the ions coupled by Poisson's equation. A discretization of the equations is given for a uniform spatial grid, and a time-split integration scheme is developed. The algorithm is then extended to accommodate locally refined grids. This extension involves the advancement of the discrete system on a hierarchy of levels, each of which represents a degree of refinement, together with synchronization steps to ensure consistency across levels. A brief discussion of a software implementation is followed by a presentation of numerical results

  14. Revisiting "Rodriguez v. Los Angeles Unified School District": A Case of Intra-District Inequities

    Science.gov (United States)

    Espinosa, Ruben W.

    2010-01-01

    The educational community and the courts continue to struggle with the challenges of intra-district resource inequality revealed by the California Supreme Court landmark case "Rodriguez v. Los Angeles Unified School District" (1992). Intra-district school resource inequality is one of the remaining bastions of major inequalities in the…

  15. Budget Stability, Revenue Volatility, and District Relations: Determinants of Georgia ELOST Distribution to Municipal School Districts

    Science.gov (United States)

    Reinagel, Tyler P.

    2014-01-01

    School districts across the United States are often forced into situations where limited public funds must be distributed among multiple districts. These are often reliant on distribution rates negotiated by district leadership and elected officials. An example of this is Georgia's 1% Education Local Option Sales Tax (ELOST). The tax is collected…

  16. Limit of grain refinement during ECAP process. Temperature influence

    International Nuclear Information System (INIS)

    Chuvil'deev, V.N.; Kopylov, V.I.; Nokhrin, A.V.; Makarov, I.M.; Lopatin, Yu.G.

    2004-01-01

    Experimental and theoretical study results are reported for the process of deformation grain refinement under severe plastic deformation. A generalization is made for experimental study results on deformation dispersing of unalloyed metals and aluminium and magnesium base alloys. The model is built that allows calculating the value of minimum grain size attained by the method of equal-channel angular pressing. The expressions are derived which describe the dependence of grain refinement limit on the nature of material and the temperature of severe plastic deformation [ru

  17. The limit of grain refinement on equal channel angular deformation

    International Nuclear Information System (INIS)

    Kopylov, V.I.; Chuvil'deev, V.N.

    2004-01-01

    Experimental and theoretical study results on the process of strain-induced grain refinement under severe plastic deformation are described. A generalization is made for experimental results on deformation dispersing of copper, magnesium and aluminium base alloys as well as unalloyed metals. The model is developed which allows calculating the minimal grain size being able to result from equal channel angular pressing. The expressions describing the dependence of the limit of grain refinement on the nature of the material and severe plastic deformation rate and temperature are obtained [ru

  18. Risk as economic category: systematics scientific approach and refinement contents

    OpenAIRE

    V.G. Vygovskyy

    2015-01-01

    The paper studies the categorical-conceptual apparatus of risk and its refinement based on a critical analysis of existing systematic scientific approaches. Determined that in the refinement of the economic nature of the risk of a number of controversial issues: the definition of the objective or subjective nature of risk; matching of concepts such as «risk», «danger», «loss», «probability of loss»; definition of negative or positive consequences of risk; identification of risk with its conse...

  19. 40 CFR 80.1142 - What are the provisions for small refiners under the RFS program?

    Science.gov (United States)

    2010-07-01

    ... all of the following criteria: (i) The refiner produced gasoline at its refineries by processing crude... Standard § 80.1142 What are the provisions for small refiners under the RFS program? (a)(1) Gasoline produced by a refiner, or foreign refiner (as defined at § 80.1165(a)), is exempt from the renewable fuel...

  20. Determinants of perinatal mortality in Marondera district ...

    African Journals Online (AJOL)

    Determinants of perinatal mortality in Marondera district, Mashonaland East Province of Zimbabwe, 2009: a case control study. ... Health worker training in emergency management of obstetric and neonatal care was initiated. Marondera District started holding perinatal mortality meetings. Key words: Perinatal mortality, ...

  1. Districts Create Community Connections with Social Media

    Science.gov (United States)

    Gordon, Dan

    2012-01-01

    More districts realize that communicating in a clear and engaging way with stakeholders about everything from the district's overall education vision to scholastic and extracurricular success stories can go a long way toward enlisting broad community support. And although face-to-face communications are still important, technology provides a…

  2. Salaryfax for Nine Districts 1972-73.

    Science.gov (United States)

    Albuquerque Public Schools, NM.

    This study compares salaries as well as benefits of school district personnel in the nine metropolitan school districts that include Albuquerque, New Mexico; Denver, Colorado; El Paso, Texas; Memphis, Tennessee; Phoenix and Tucson, Arizona; Wichita, Kansas; and Mobile, Alabama. The tables aggregate all the elements in the total compensation…

  3. 7 CFR 917.14 - District.

    Science.gov (United States)

    2010-01-01

    ... line from the northeast corner of Solano County to the town of Rio Vista. (d) El Dorado District... County, Shasta County, Tehama County, Modoc County, Siskiyou County, Lassen County, Plumas County, and Colusa County. (b) Central Sacramento Valley District includes and consists of Sutter County, Butte...

  4. Wireless Wide Area Networks for School Districts.

    Science.gov (United States)

    Nair, Prakash

    This paper considers a basic question that many schools districts face in attempting to develop affordable, expandable district-wide computer networks that are resistant to obsolescence: Should these wide area networks (WANs) employ wireless technology, stick to venerable hard-wired solutions, or combine both. This publication explores the…

  5. Crafting Legitimacy in District-Community Partnerships

    Science.gov (United States)

    Lechasseur, Kimberly

    2017-01-01

    Background/Context: Partnering across districts, schools, and other community organizations has become ubiquitous as a policy for promoting change. Despite growing attention to and scholarship on district-community partnerships, there is little examination of the organizational mechanisms involved in sustaining them. Purpose/Objectives: This study…

  6. Income Segregation between Schools and School Districts

    Science.gov (United States)

    Owens, Ann; Reardon, Sean F.; Jencks, Christopher

    2016-01-01

    Although trends in the racial segregation of schools are well documented, less is known about trends in income segregation. We use multiple data sources to document trends in income segregation between schools and school districts. Between-district income segregation of families with children enrolled in public school increased by over 15% from…

  7. Planned Change in Urban School Districts.

    Science.gov (United States)

    Pincus, John: Williams, Richard C.

    1979-01-01

    Reports on what researchers discovered in their study of five urban school districts that were labeled "innovative." Provides a conceptual framework that takes into account five factors that seemed critical to a district's success or failure in implementing change. (Author/IRT)

  8. Performance of District Disaster Management Teams after ...

    African Journals Online (AJOL)

    Introduction: Uganda is vulnerable to several natural, man-made and a hybrid of disasters including drought, famine, floods, warfare, and disease outbreaks. We assessed the district disaster team's performance, roles and experiences following the training. Findings: The disasters most commonly experienced by the district ...

  9. Supporting Solo at the District Level

    Science.gov (United States)

    Woodard, Mary

    2011-01-01

    School librarians in the Mesquite Independent School District (ISD) have been operating solo on their campuses since the 1970s. Campus clerical assistance in the school libraries was a luxury that they couldn't afford. Since the district's vision was of a teaching librarian, a Library Processing Department was established in 1972. As years passed,…

  10. Cyclone hazard proneness of districts of India

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science; Volume 124; Issue 3. Cyclone hazard proneness of districts of India ... Thus classification of TC hazard proneness of the coastal districts is very essential for planning and preparedness aspects of management of TCs. So, an attempt has been made to classify TC hazard ...

  11. District Leaders' Framing of Educator Evaluation Policy

    Science.gov (United States)

    Woulfin, Sarah L.; Donaldson, Morgaen L.; Gonzales, Richard

    2016-01-01

    Purpose: Educator evaluation systems have recently undergone scrutiny and reform, and district and school leaders play a key role in interpreting and enacting these systems. This article uses framing theory to understand district leaders' interpretation and advancement of a state's new educator evaluation policy. Research Methods: The article…

  12. 5 Steps to a Greener School District

    Science.gov (United States)

    Hines, Gary

    2010-01-01

    Sometimes all it takes is a little fate to accomplish something great, or in this case, something green. The Broward County Public School (BCPS) District shows how a natural disaster (Hurricane Wilma) inspired a green revolution. This article presents the five steps that the Broward County School District followed in implementing an Environmental…

  13. the creation of new districts in Uganda

    African Journals Online (AJOL)

    User

    This article analyses the process of creating districts. It ..... The process of the creation of districts was assessed as follows in a recent report: 46 Section 181 (1) of the Constitution. 47 Section 181 (2) of the Constitution. 48 Section .... The report notes, among other things, the concealment of cash transactions from scrutiny ...

  14. Solar district heating and cooling: A review

    DEFF Research Database (Denmark)

    Perez-Mora, Nicolas; Bava, Federico; Andersen, Martin

    2018-01-01

    Both district heating and solar collector systems have been known and implemented for many years. However, the combination of the two, with solar collectors supplying heat to the district heating network, is relatively new, and no comprehensive review of scientific publications on this topic coul...

  15. Spin systems and Political Districting Problem

    Energy Technology Data Exchange (ETDEWEB)

    Chou, C.-I [Department of Physics, Chinese Culture University, Taipei, Taiwan 111 (China)]. E-mail: cichou@faculty.pccu.edu.tw; Li, S.-P. [Institute of Physics, Academia Sinica, Taipei, Taiwan 115 (China)

    2007-03-15

    The aim of the Political Districting Problem is to partition a territory into electoral districts subject to some constraints such as contiguity, population equality, etc. In this paper, we apply statistical physics methods to Political Districting Problem. We will show how to transform the political problem to a spin system, and how to write down a q-state Potts model-like energy function in which the political constraints can be written as interactions between sites or external fields acting on the system. Districting into q voter districts is equivalent to finding the ground state of this q-state Potts model. Searching for the ground state becomes an optimization problem, where optimization algorithms such as the simulated annealing method and Genetic Algorithm can be employed here.

  16. Spin systems and Political Districting Problem

    Science.gov (United States)

    Chou, Chung-I.; Li, Sai-Ping

    2007-03-01

    The aim of the Political Districting Problem is to partition a territory into electoral districts subject to some constraints such as contiguity, population equality, etc. In this paper, we apply statistical physics methods to Political Districting Problem. We will show how to transform the political problem to a spin system, and how to write down a q-state Potts model-like energy function in which the political constraints can be written as interactions between sites or external fields acting on the system. Districting into q voter districts is equivalent to finding the ground state of this q-state Potts model. Searching for the ground state becomes an optimization problem, where optimization algorithms such as the simulated annealing method and Genetic Algorithm can be employed here.

  17. Energy Assessment of Automated Mobility Districts

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Yuche [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-08-03

    Automated vehicles (AVs) are increasingly being discussed as the basis for on-demand mobility services, introducing a new paradigm in which a fleet of AVs displace private automobiles for day-to-day travel in dense activity districts. This project examines such a concept to displace privately owned automobiles within a region containing dense activity generators (jobs, retail, entertainment, etc.), referred to as an automated mobility district (AMDs). The project reviews several such districts including airport, college campuses, business parks, downtown urban cores, and military bases, with examples of previous attempts to meet the mobility needs apart from private automobiles, some with automated technology and others with more traditional transit based solutions. The issues and benefits of AMDs are framed within the perspective of intra-district, inter-district, and border issues, and the requirements for a modeling framework are identified to adequately reflect the breadth of mobility, energy, and emissions impact anticipated with AMDs.

  18. O melhor é bom o suficiente?

    Directory of Open Access Journals (Sweden)

    Peter Lipton

    2010-11-01

    Full Text Available Artigo traduzido do original inglês "Is the Best Good Enough?", publicado em Proceedings of the Aristotelian Society, vol. XCIII, parte 2, 1993, pp. 89-104. Todos os direitos do artigo estáo reservados aos editores de Aristotelian Society, a quem os tradutores agradecem, na pessoa de Mark Tavis, a licença para a traduçáo deste artigo. Reprinted by courtesy of the Editor of the Aristotelian Society: © [1993].

  19. Mechanical pulping with a sequential velocity refiner- a new concept

    Science.gov (United States)

    C.W. McMillin

    1978-01-01

    In previous research with refiner mechanical pulps, a theoretical stress analysis indicated that longitudinal tracheids of Pinus taeda L. fail while under torsional stress and unwind into ribbonlike elements that provide the coherence necessary for strength development. When macerated tracheids of loblolly pine were individually stressed in torsion...

  20. A Progressive Refinement Approach for the Visualisation of Implicit Surfaces

    Science.gov (United States)

    Gamito, Manuel N.; Maddock, Steve C.

    Visualising implicit surfaces with the ray casting method is a slow procedure. The design cycle of a new implicit surface is, therefore, fraught with long latency times as a user must wait for the surface to be rendered before being able to decide what changes should be introduced in the next iteration. In this paper, we present an attempt at reducing the design cycle of an implicit surface modeler by introducing a progressive refinement rendering approach to the visualisation of implicit surfaces. This progressive refinement renderer provides a quick previewing facility. It first displays a low quality estimate of what the final rendering is going to be and, as the computation progresses, increases the quality of this estimate at a steady rate. The progressive refinement algorithm is based on the adaptive subdivision of the viewing frustrum into smaller cells. An estimate for the variation of the implicit function inside each cell is obtained with an affine arithmetic range estimation technique. Overall, we show that our progressive refinement approach not only provides the user with visual feedback as the rendering advances but is also capable of completing the image faster than a conventional implicit surface rendering algorithm based on ray casting.

  1. Biomass refining for sustainable development : analysis and directions

    NARCIS (Netherlands)

    Luo, Lin

    2010-01-01

    To understand the contribution of biomass refining to sustainable development, the technical, environmental and economic aspects are summarized in this thesis. This work begins from life cycle assessment (LCA) of bioethanol from lignocellulosic feedstocks such as corn stover, sugarcane and bagasse,

  2. Discovery and refinement of loci associated with lipid levels

    NARCIS (Netherlands)

    Willer, Cristen J; Schmidt, Ellen M; Sengupta, Sebanti; Peloso, Gina M; Gustafsson, Stefan; Kanoni, Stavroula; Ganna, Andrea; Chen, Jin; Buchkovich, Martin L; Mora, Samia; Beckmann, Jacques S; Bragg-Gresham, Jennifer L; Chang, Hsing-Yi; Demirkan, Ayşe; Den Hertog, Heleen M; Do, Ron; Donnelly, Louise A; Ehret, Georg B; Esko, Tõnu; Feitosa, Mary F; Ferreira, Teresa; Fischer, Krista; Fontanillas, Pierre; Fraser, Ross M; Freitag, Daniel F; Gurdasani, Deepti; Heikkilä, Kauko; Hyppönen, Elina; Isaacs, Aaron; Jackson, Anne U; Johansson, Asa; Johnson, Toby; Kaakinen, Marika; Kettunen, Johannes; Kleber, Marcus E; Li, Xiaohui; Luan, Jian'an; Lyytikäinen, Leo-Pekka; Magnusson, Patrik K E; Mangino, Massimo; Mihailov, Evelin; Montasser, May E; Müller-Nurasyid, Martina; Nolte, Ilja M; O'Connell, Jeffrey R; Palmer, Cameron D; Perola, Markus; Petersen, Ann-Kristin; Sanna, Serena; Saxena, Richa; Service, Susan K; Shah, Sonia; Shungin, Dmitry; Sidore, Carlo; Song, Ci; Strawbridge, Rona J; Surakka, Ida; Tanaka, Toshiko; Teslovich, Tanya M; Thorleifsson, Gudmar; Van den Herik, Evita G; Voight, Benjamin F; Volcik, Kelly A; Waite, Lindsay L; Wong, Andrew; Wu, Ying; Zhang, Weihua; Absher, Devin; Asiki, Gershim; Barroso, Inês; Been, Latonya F; Bolton, Jennifer L; Bonnycastle, Lori L; Brambilla, Paolo; Burnett, Mary S; Cesana, Giancarlo; Dimitriou, Maria; Doney, Alex S F; Döring, Angela; Elliott, Paul; Epstein, Stephen E; Eyjolfsson, Gudmundur Ingi; Gigante, Bruna; Goodarzi, Mark O; Grallert, Harald; Gravito, Martha L; Groves, Christopher J; Hallmans, Göran; Hartikainen, Anna-Liisa; Hayward, Caroline; Hernandez, Dena; Hicks, Andrew A; Holm, Hilma; Hung, Yi-Jen; Illig, Thomas; Jones, Michelle R; Kaleebu, Pontiano; Kastelein, John J P; Khaw, Kay-Tee; Kim, Eric; Klopp, Norman; Komulainen, Pirjo; Kumari, Meena; Langenberg, Claudia; Lehtimäki, Terho; Lin, Shih-Yi; Lindström, Jaana; Loos, Ruth J F; Mach, François; McArdle, Wendy L; Meisinger, Christa; Mitchell, Braxton D; Müller, Gabrielle; Nagaraja, Ramaiah; Narisu, Narisu; Nieminen, Tuomo V M; Nsubuga, Rebecca N; Olafsson, Isleifur; Ong, Ken K; Palotie, Aarno; Papamarkou, Theodore; Pomilla, Cristina; Pouta, Anneli; Rader, Daniel J; Reilly, Muredach P; Ridker, Paul M; Rivadeneira, Fernando; Rudan, Igor; Ruokonen, Aimo; Samani, Nilesh; Scharnagl, Hubert; Seeley, Janet; Silander, Kaisa; Stancáková, Alena; Stirrups, Kathleen; Swift, Amy J; Tiret, Laurence; Uitterlinden, Andre G; van Pelt, L Joost; Vedantam, Sailaja; Wainwright, Nicholas; Wijmenga, Cisca; Wild, Sarah H; Willemsen, Gonneke; Wilsgaard, Tom; Wilson, James F; Young, Elizabeth H; Zhao, Jing Hua; Adair, Linda S; Arveiler, Dominique; Assimes, Themistocles L; Bandinelli, Stefania; Bennett, Franklyn; Bochud, Murielle; Boehm, Bernhard O; Boomsma, Dorret I; Borecki, Ingrid B; Bornstein, Stefan R; Bovet, Pascal; Burnier, Michel; Campbell, Harry; Chakravarti, Aravinda; Chambers, John C; Chen, Yii-Der Ida; Collins, Francis S; Cooper, Richard S; Danesh, John; Dedoussis, George; de Faire, Ulf; Feranil, Alan B; Ferrières, Jean; Ferrucci, Luigi; Freimer, Nelson B; Gieger, Christian; Groop, Leif C; Gudnason, Vilmundur; Gyllensten, Ulf; Hamsten, Anders; Harris, Tamara B; Hingorani, Aroon; Hirschhorn, Joel N; Hofman, Albert; Hovingh, G Kees; Hsiung, Chao Agnes; Humphries, Steve E; Hunt, Steven C; Hveem, Kristian; Iribarren, Carlos; Järvelin, Marjo-Riitta; Jula, Antti; Kähönen, Mika; Kaprio, Jaakko; Kesäniemi, Antero; Kivimaki, Mika; Kooner, Jaspal S; Koudstaal, Peter J; Krauss, Ronald M; Kuh, Diana; Kuusisto, Johanna; Kyvik, Kirsten O; Laakso, Markku; Lakka, Timo A; Lind, Lars; Lindgren, Cecilia M; Martin, Nicholas G; März, Winfried; McCarthy, Mark I; McKenzie, Colin A; Meneton, Pierre; Metspalu, Andres; Moilanen, Leena; Morris, Andrew D; Munroe, Patricia B; Njølstad, Inger; Pedersen, Nancy L; Power, Chris; Pramstaller, Peter P; Price, Jackie F; Psaty, Bruce M; Quertermous, Thomas; Rauramaa, Rainer; Saleheen, Danish; Salomaa, Veikko; Sanghera, Dharambir K; Saramies, Jouko; Schwarz, Peter E H; Sheu, Wayne H-H; Shuldiner, Alan R; Siegbahn, Agneta; Spector, Tim D; Stefansson, Kari; Strachan, David P; Tayo, Bamidele O; Tremoli, Elena; Tuomilehto, Jaakko; Uusitupa, Matti; van Duijn, Cornelia M; Vollenweider, Peter; Wallentin, Lars; Wareham, Nicholas J; Whitfield, John B; Wolffenbuttel, Bruce H R; Ordovas, Jose M; Boerwinkle, Eric; Palmer, Colin N A; Thorsteinsdottir, Unnur; Chasman, Daniel I; Rotter, Jerome I; Franks, Paul W; Ripatti, Samuli; Cupples, L Adrienne; Sandhu, Manjinder S; Rich, Stephen S; Boehnke, Michael; Deloukas, Panos; Kathiresan, Sekar; Mohlke, Karen L; Ingelsson, Erik; Abecasis, Gonçalo R

    2013-01-01

    Levels of low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, triglycerides and total cholesterol are heritable, modifiable risk factors for coronary artery disease. To identify new loci and refine known loci influencing these lipids, we examined 188,577

  3. An approach of requirements tracing in formal refinement

    DEFF Research Database (Denmark)

    Jastram, Michael; Hallerstede, Stefan; Leuschel, Michael

    2010-01-01

    Formal modeling of computing systems yields models that are intended to be correct with respect to the requirements that have been formalized. The complexity of typical computing systems can be addressed by formal refinement introducing all the necessary details piecemeal. We report on preliminar...... changes, making use of corresponding techniques already built into the Event-B method....

  4. Procurement planning in oil refining industries considering blending operations

    DEFF Research Database (Denmark)

    Oddsdottir, Thordis Anna; Grunow, Martin; Akkerman, Renzo

    2013-01-01

    This paper addresses procurement planning in oil refining, which has until now only had limited attention in the literature. We introduce a mixed integer nonlinear programming (MINLP) model and develop a novel two-stage solution approach, which aims at computational efficiency while addressing th...

  5. Refining of crystal structures of macromolecules with molecular dynamics

    International Nuclear Information System (INIS)

    Mascarenhas, Y.P.

    1988-01-01

    In this work, the refining of crystal structures of macromolecules is discussed. The annealing method is employed and it can be previewed that, this method, will be largely used in the future for protein crystallography. (A.C.A.S.) [pt

  6. Evaluation of the acute toxicity of refined petroleum products against ...

    African Journals Online (AJOL)

    Static and static-renewal evaluation of the acute toxicity of three refined petroleum products — petrol, kerosene and diesel — against two freshwater animals, the mollusc Pila ovata and the fish Poecilia reticulata, was conducted in the laboratory. Petrol, kerosene and diesel were found to be moderately toxic to the test ...

  7. Technology of niobium and molybdenum refining by electron beam

    International Nuclear Information System (INIS)

    Conti, R.A.; Pinatti, D.G.; Sandim, H.R.Z.

    1988-01-01

    The uses of metals and alloys in superconductors (Nb46%Ti), aerospatial industry (Ti6Al4V), electroeletronic industry (Nb, Mo, W) and in surgical implants (Ti, Nb) are increasing nowadays. A refining process of niobium and molybdenum by electron beam technique, since the oxides reduction till the obtention of a high purity ingot is presented. (C.G.C.) [pt

  8. Assimilating Remote Ammonia Observations with a Refined Aerosol Thermodynamics Adjoint"

    Science.gov (United States)

    Ammonia emissions parameters in North America can be refined in order to improve the evaluation of modeled concentrations against observations. Here, we seek to do so by developing and applying the GEOS-Chem adjoint nested over North America to conductassimilation of observations...

  9. BioDegradation of Refined Petroleum Hydrocarbons in Soil | Obire ...

    African Journals Online (AJOL)

    Carbon-dioxide production and hydrocarbon degradation of refined petroleum hydrocarbon in soils treated with 5% gasoline, kerosene and diesel oil were investigated. Soil for study was bulked from around a car park in Port Harcourt. Soil samples were collected at weekly intervals for four weeks and subsequently at ...

  10. Macromolecular refinement by model morphing using non-atomic parameterizations.

    Science.gov (United States)

    Cowtan, Kevin; Agirre, Jon

    2018-02-01

    Refinement is a critical step in the determination of a model which explains the crystallographic observations and thus best accounts for the missing phase components. The scattering density is usually described in terms of atomic parameters; however, in macromolecular crystallography the resolution of the data is generally insufficient to determine the values of these parameters for individual atoms. Stereochemical and geometric restraints are used to provide additional information, but produce interrelationships between parameters which slow convergence, resulting in longer refinement times. An alternative approach is proposed in which parameters are not attached to atoms, but to regions of the electron-density map. These parameters can move the density or change the local temperature factor to better explain the structure factors. Varying the size of the region which determines the parameters at a particular position in the map allows the method to be applied at different resolutions without the use of restraints. Potential applications include initial refinement of molecular-replacement models with domain motions, and potentially the use of electron density from other sources such as electron cryo-microscopy (cryo-EM) as the refinement model.

  11. Use of intensity quotients and differences in absolute structure refinement

    Science.gov (United States)

    Parsons, Simon; Flack, Howard D.; Wagner, Trixie

    2013-01-01

    Several methods for absolute structure refinement were tested using single-crystal X-ray diffraction data collected using Cu Kα radiation for 23 crystals with no element heavier than oxygen: conventional refinement using an inversion twin model, estimation using intensity quotients in SHELXL2012, estimation using Bayesian methods in PLATON, estimation using restraints consisting of numerical intensity differences in CRYSTALS and estimation using differences and quotients in TOPAS-Academic where both quantities were coded in terms of other structural parameters and implemented as restraints. The conventional refinement approach yielded accurate values of the Flack parameter, but with standard uncertainties ranging from 0.15 to 0.77. The other methods also yielded accurate values of the Flack parameter, but with much higher precision. Absolute structure was established in all cases, even for a hydrocarbon. The procedures in which restraints are coded explicitly in terms of other structural parameters enable the Flack parameter to correlate with these other parameters, so that it is determined along with those parameters during refinement. PMID:23719469

  12. Nano-Sized Grain Refinement Using Friction Stir Processing

    Science.gov (United States)

    2013-03-01

    based on plastic deformation have been developed for grain refinement in Mg alloys such as rolling, Equal Channel Angular Processing ( ECAP ) and Equal...Research Laboratory. Introduction Magnesium ( Mg ) alloys have been widely used for structural components in the automotive, aerospace and...electronics industry due to their low density, high strength to stiffness ratio, good damping capacity, diecastability and recycling. However Mg alloys

  13. Refining in the 90s - a green burden?

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    The refining industry has been faced with many technical and economic challenges in recent years. Most of these changes have been a result of long-term strategic planning by governments, resulting in more stringent environmental legislation. This article discusses whether the industry can cope with the new rules. (author)

  14. Modelling of grain refinement driven by negative grain boundary energy

    Czech Academy of Sciences Publication Activity Database

    Fischer, F. D.; Zickler, G. A.; Svoboda, Jiří

    2017-01-01

    Roč. 97, č. 23 (2017), s. 1963-1977 ISSN 1478-6435 R&D Projects: GA ČR(CZ) GA15-06390S Institutional support: RVO:68081723 Keywords : grain refinement * grain nucleation * distribution concept * jump on distribution function Subject RIV: BJ - Thermodynamics OBOR OECD: Thermodynamics Impact factor: 1.505, year: 2016

  15. Synthesis and structure refinement of layered double hydroxides of ...

    Indian Academy of Sciences (India)

    Administrator

    )-oxygen bond in this compound as opposed to the Co–Ga hydroxide. These observations are supported by IR spectra. Keywords. Layered double hydroxide; Rietveld refinement; urea hydrolysis. 1. Introduction. The synthesis, structure and properties of layered double hydroxides (LDHs) have been widely studied in recent.

  16. On Architectural Support for Behaviour Refinement in Distributed Systems Design

    NARCIS (Netherlands)

    Quartel, Dick; Ferreira Pires, Luis; van Sinderen, Marten J.

    During the top-down design of distributed systems, abstract designs have to be replaced by more concrete designs, which add details that define how these systems can be implemented using available building blocks. Behaviour refinement is a design operation in which abstract behaviours are replaced

  17. On refinement of the unit simplex using regular simplices

    NARCIS (Netherlands)

    G.-Tóth, B.; Hendrix, E.M.T.; Casado, L.G.; García, I.

    2016-01-01

    A natural way to define branching in branch and bound (B&B) for blending problems is bisection. The consequence of using bisection is that partition sets are in general irregular. The question is how to use regular simplices in the refinement of the unit simplex. A regular simplex with fixed

  18. Significance of Kaduna River to Kaduna Refining and ...

    African Journals Online (AJOL)

    Significance of Kaduna River to Kaduna Refining and Petrochemicals Complex: Some Checks and Balances. ... Kaduna Refinery and Petrochemicals Complex comprises of various processing units. The plants produce various grades of petroleum ... contains a number of chemicals and compounds. The process waters are

  19. Investigation of the influence of Ceratophyllum demersum to refine ...

    African Journals Online (AJOL)

    Water pollution has always been a major problem in the environment. Polluted water is harming for human health and need to clean water from pollution factors. One of the economic and rapid methods for elements removal is displacement metals by biosorption. The purpose of this study was refining diluted compost latex ...

  20. High resolution single particle refinement in EMAN2.1.

    Science.gov (United States)

    Bell, James M; Chen, Muyuan; Baldwin, Philip R; Ludtke, Steven J

    2016-05-01

    EMAN2.1 is a complete image processing suite for quantitative analysis of grayscale images, with a primary focus on transmission electron microscopy, with complete workflows for performing high resolution single particle reconstruction, 2-D and 3-D heterogeneity analysis, random conical tilt reconstruction and subtomogram averaging, among other tasks. In this manuscript we provide the first detailed description of the high resolution single particle analysis pipeline and the philosophy behind its approach to the reconstruction problem. High resolution refinement is a fully automated process, and involves an advanced set of heuristics to select optimal algorithms for each specific refinement task. A gold standard FSC is produced automatically as part of refinement, providing a robust resolution estimate for the final map, and this is used to optimally filter the final CTF phase and amplitude corrected structure. Additional methods are in-place to reduce model bias during refinement, and to permit cross-validation using other computational methods. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. Refinements, Generalizations, and Applications of Jordan's Inequality and Related Problems

    Directory of Open Access Journals (Sweden)

    Feng Qi

    2009-01-01

    Full Text Available This is a survey and expository article. Some new developments on refinements, generalizations, and applications of Jordan's inequality and related problems, including some results about Wilker-Anglesio's inequality, some estimates for three kinds of complete elliptic integrals, and several inequalities for the remainder of power series expansion of the exponential function, are summarized.

  2. Challenges for Refinement and Composition of Instrumentations: Position Paper

    NARCIS (Netherlands)

    Ansaloni, D.; Binder, W.; Bockisch, Christoph; Bodden, E.; Hatun, Kardelen; Marek, L.; Qi, Z.; Sarimbekov, A.; Sewe, A.; Tuma, P.; Zheng, Y.

    Instrumentation techniques are widely used for implementing dynamic program analysis tools like profilers or debuggers. While there are many toolkits and frameworks to support the development of such low-level instrumentations, there is little support for the refinement or composition of

  3. Acetic acid based oil palm biomass refining process

    NARCIS (Netherlands)

    Harmsen, P.F.H.; Keijsers, E.R.P.; Lips, S.J.J.; Dam, van J.E.G.; Engelen-Smit, N.P.E.

    2011-01-01

    The invention relates to a process for refining a biomass from empty fruit bunches of oil palm with a dry matter content of 5-95 wt.%, based on the total wt. of the biomass, where the process comprises the subsequent stages of (a) water extn. under atm. pressure conditions and at pH of 5-7, (b) pre

  4. Production of biodiesel by transesterification of refined soybean oil ...

    African Journals Online (AJOL)

    This study focused on the production of biodiesel via transesterification of refined soybean oil obtained locally. Sodium hydroxide was used as the alkali catalyst and methanol (as alcohol) was used in the transesterification process due to its low cost. The methanol-to-oil molar ratio was maintained at 6:1. The effect of ...

  5. High purity tellurium production using dry refining processes

    Indian Academy of Sciences (India)

    purity) is purified using dry processes such as selective vapourization and zone melting in a thoroughly etched and cleaned quartz boat, under continuous flow of hydrogen (H2) gas. The tellurium ingot was quadruple zone refined (QZR) under continuous flow of H2 gas. Thus, the purified tellurium of ultra high purity (UHP) ...

  6. Orthogonal bases of radial functions for charge density refinements

    International Nuclear Information System (INIS)

    Restori, R.

    1990-01-01

    Charge density determination from X-ray measurements necessitates the evaluation of the Fourier-Bessel transforms of the radial functions used to expand the charge density. Analytical expressions are given here for four sets of orthogonal functions which can substitute for the 'traditional exponential functions' set in least-squares refinements. (orig.)

  7. Mathematical aspects of Rietveld refinement and crystal structure ...

    Indian Academy of Sciences (India)

    Administrator

    Abstract. The core mathematics, goodness-of-fit parameters of Rietveld refinement technique is introduced for structural analysis of crystalline materials not available as single crystals. X-ray diffraction (XRD) pat- terns of PbTiO3 compound prepared by following solid-state route, suggests it to be in single crystal form. All.

  8. effect of chemical refining on citrullus colocynthis and

    African Journals Online (AJOL)

    d

    2012-05-03

    May 3, 2012 ... having a good color, no taste or smell and remains fit for consumption, storage and transportation for long time .... can settle out during shipment or storage of pure oil [14, 16]. Alkali refining. For alkali .... produce biodiesel with high cloud and pour point that have poor cold performance. [24]. So P. pinnata oil ...

  9. Imports on the rise - small refiners looking for protection

    Energy Technology Data Exchange (ETDEWEB)

    Patrick, L.

    1985-04-01

    Small refiners, hurting from foreign competition, have launched a drive in Washington for oil products quotas or higher tariffs. Such protectionism would cost consumers a few cent per gallon, but they believe that it would be a good investment from a national security basis. Other developments in Congress and the Reagan Administration relating to the fuel oil industry are discussed.

  10. Simultaneous refinement of two components of an exsolution intergrowth

    DEFF Research Database (Denmark)

    Topa, Dan; Petricek, Vaclav; Dusek, Michal

    2008-01-01

    Crystal structures of intergrown lindstromite and krupkaite were determined in two distinct samples by a simultaneous crystal-structure refinement using a modified JANA program package. The exsolution intergrowths have a bulk composition, determined by means of electron microprobe, equal to bd(60...

  11. Preparation of high purity tellurium by zone refining

    Indian Academy of Sciences (India)

    This paper describes purification process of tellurium metal using zone refining technique under high purity hydrogen gas ambient in normal room environment. Process automation by newly designed stepper motor drive and allied process control instruments circumvent the complexity of electrical motors. It is observed that ...

  12. Crystal structure of vanadite: Refinement of anisotropic displacement parameters

    Czech Academy of Sciences Publication Activity Database

    Laufek, F.; Skála, Roman; Haloda, J.; Císařová, I.

    2006-01-01

    Roč. 51, 3-4 (2006), s. 271-275 ISSN 1210-8197 Institutional research plan: CEZ:AV0Z30130516 Keywords : anisotropic displacement parameter * crystal structure * single-crystal X-ray refinement * vanadinite Subject RIV: DB - Geology ; Mineralogy

  13. Refinement of a Chemistry Attitude Measure for College Students

    Science.gov (United States)

    Xu, Xiaoying; Lewis, Jennifer E.

    2011-01-01

    This work presents the evaluation and refinement of a chemistry attitude measure, Attitude toward the Subject of Chemistry Inventory (ASCI), for college students. The original 20-item and revised 8-item versions of ASCI (V1 and V2) were administered to different samples. The evaluation for ASCI had two main foci: reliability and validity. This…

  14. Action Relations. Basic Design Concepts for Behaviour Modelling and Refinement.

    NARCIS (Netherlands)

    Quartel, Dick

    This thesis presents basic design concepts, design methods and a basic design language for distributed system behaviours. This language is based on two basic concepts: the action concept and the causality relation concept. Our methods focus on behaviour refinement, which consists of replacing an

  15. Disparity refinement process based on RANSAC plane fitting for ...

    African Journals Online (AJOL)

    ... more accurate than normal flow state-of-the-art stereo matching algorithms. The performance evaluations are based on standard image quality metrics i.e. structural similarity index measure, peak signal-to-noise ratio and mean square error. Keywords: computer vision; disparity refinement; image segmentation; RANSAC; ...

  16. Sparse district-heating in Sweden

    Energy Technology Data Exchange (ETDEWEB)

    Nilsson, Stefan Forsaeus [SP Technical Research Institute of Sweden, Building Technology and Mechanics, P.O. Box 24036, SE-400 22 Goeteborg (Sweden); Reidhav, Charlotte [Chalmers University of Technology, Department of Civil and Environmental Engineering, SE-412 96 Goeteborg (Sweden); Lygnerud, Kristina [Goeteborg University, School of Business, Economics and Law, Department of Business Administration, P.O. Box 610, SE-405 30 Goeteborg (Sweden); Werner, Sven [Chalmers University of Technology, Department of Energy and Environment, SE-412 96 Goeteborg (Sweden)

    2008-07-15

    This paper presents a review of the sparse district-heating research programme undertaken in Sweden between 2002 and 2006. The goal of the programme was to increase the future competitiveness for district heat in low heat density areas, e.g., suburban single-family houses and small villages. Such areas are unfavourable, since revenues from heat sold are low compared with the investment cost for the local distribution network. In Sweden, district heat has a dominant position in the heat market for residential and service-sector buildings. In order for the business to grow, it is necessary to increase the rate of expansion in the detached-house segment. This is why the programme was initiated. The extent of the programme was set at EUR 3.6 million with equal financing from the Swedish District-Heating Association and the Swedish Energy-Agency. The research was carried out in three phases: a state of the art survey; a development phase focused on productivity gains where new research on both technology and customer interaction was performed; and finally a demonstration phase where new methods were tested in full-scale field operation. The programme has shown that the Swedish district-heating industry needs to adjust in order to reach a higher profitability for sparse district-heating investments. Tradition from large-scale high-density district heating is hard to scale to fit sparse district-heating systems. For example, the construction becomes very labour intensive and the industry is weak when it comes to market-oriented business logic, sales and private customer interaction. Innovation seems to be a way forward and active management of innovations is a way to create increased value of the investments. Other keys to improving the profitability of sparse district-heating investments are more efficient working routines (resulting in higher productivity) and revised ways of customer communications. These seem more important than increasing efficiency in district

  17. Malaria prevalence in endemic districts of Bangladesh.

    Directory of Open Access Journals (Sweden)

    Ubydul Haque

    Full Text Available BACKGROUND: Following the 1971 ban of DDT in Bangladesh, malaria cases have increased steadily. Malaria persists as a major health problem in the thirteen south-eastern and north-eastern districts of Bangladesh. At present the national malaria control program, largely supported by the Global Fund for AIDS, Tuberculosis and Malaria (GFATM, provides interventions including advocacy at community level, Insecticide Treated Net (ITN distribution, introduction of Rapid Diagnostic Tests (RDT and combination therapy with Coartem. It is imperative, therefore, that baseline data on malaria prevalence and other malaria indicators are collected to assess the effectiveness of the interventions and rationalize the prevention and control efforts. The objective of this study was to obtain this baseline on the prevalence of malaria and bed net use in the thirteen malaria endemic districts of Bangladesh. METHODS AND PRINCIPAL FINDINGS: In 2007, BRAC and ICDDR,B carried out a malaria prevalence survey in thirteen malaria endemic districts of Bangladesh. A multi-stage cluster sampling technique was used and 9750 blood samples were collected. Rapid Diagnostic Tests (RDT were used for the diagnosis of malaria. The weighted average malaria prevalence in the thirteen endemic districts was 3.97%. In five south-eastern districts weighted average malaria prevalence rate was 6.00% and in the eight north-eastern districts weighted average malaria prevalence rate was (0.40%. The highest malaria prevalence was observed in Khagrachari district. The majority of the cases (90.18% were P. falciparum infections. Malaria morbidity rates in five south-eastern districts was 2.94%. In eight north-eastern districts, morbidity was 0.07%. CONCLUSION AND SIGNIFICANCE: Bangladesh has hypoendemic malaria with P. falciparum the dominant parasite species. The malaria situation in the five north-eastern districts of Bangladesh in particular warrants urgent attention. Detailed maps of the

  18. Genomic multiple sequence alignments: refinement using a genetic algorithm

    Directory of Open Access Journals (Sweden)

    Lefkowitz Elliot J

    2005-08-01

    Full Text Available Abstract Background Genomic sequence data cannot be fully appreciated in isolation. Comparative genomics – the practice of comparing genomic sequences from different species – plays an increasingly important role in understanding the genotypic differences between species that result in phenotypic differences as well as in revealing patterns of evolutionary relationships. One of the major challenges in comparative genomics is producing a high-quality alignment between two or more related genomic sequences. In recent years, a number of tools have been developed for aligning large genomic sequences. Most utilize heuristic strategies to identify a series of strong sequence similarities, which are then used as anchors to align the regions between the anchor points. The resulting alignment is globally correct, but in many cases is suboptimal locally. We describe a new program, GenAlignRefine, which improves the overall quality of global multiple alignments by using a genetic algorithm to improve local regions of alignment. Regions of low quality are identified, realigned using the program T-Coffee, and then refined using a genetic algorithm. Because a better COFFEE (Consistency based Objective Function For alignmEnt Evaluation score generally reflects greater alignment quality, the algorithm searches for an alignment that yields a better COFFEE score. To improve the intrinsic slowness of the genetic algorithm, GenAlignRefine was implemented as a parallel, cluster-based program. Results We tested the GenAlignRefine algorithm by running it on a Linux cluster to refine sequences from a simulation, as well as refine a multiple alignment of 15 Orthopoxvirus genomic sequences approximately 260,000 nucleotides in length that initially had been aligned by Multi-LAGAN. It took approximately 150 minutes for a 40-processor Linux cluster to optimize some 200 fuzzy (poorly aligned regions of the orthopoxvirus alignment. Overall sequence identity increased only

  19. Nucleation mechanisms of refined alpha microstructure in beta titanium alloys

    Science.gov (United States)

    Zheng, Yufeng

    Due to a great combination of physical and mechanical properties, beta titanium alloys have become promising candidates in the field of chemical industry, aerospace and biomedical materials. The microstructure of beta titanium alloys is the governing factor that determines their properties and performances, especially the size scale, distribution and volume fraction of precipitate phase in parent phase matrix. Therefore in order to enhance the performance of beta titanium alloys, it is critical to obtain a thorough understanding of microstructural evolution in beta titanium alloys upon various thermal and/or mechanical processes. The present work is focusing on the study of nucleation mechanisms of refined alpha microstructure and super-refined alpha microstructure in beta titanium alloys in order to study the influence of instabilities within parent phase matrix on precipitates nucleation, including compositional instabilities and/or structural instabilities. The current study is primarily conducted in Ti-5Al-5Mo-5V-3Cr (wt%, Ti-5553), a commercial material for aerospace application. Refined and super-refined precipitates microstructure in Ti-5553 are obtained under specific accurate temperature controlled heat treatments. The characteristics of either microstructure are investigated in details using various characterization techniques, such as SEM, TEM, STEM, HRSTEM and 3D atom probe to describe the features of microstructure in the aspect of morphology, distribution, structure and composition. Nucleation mechanisms of refined and super-refined precipitates are proposed in order to fully explain the features of different precipitates microstructure in Ti-5553. The necessary thermodynamic conditions and detailed process of phase transformations are introduced. In order to verify the reliability of proposed nucleation mechanisms, thermodynamic calculation and phase field modeling simulation are accomplished using the database of simple binary Ti-Mo system

  20. The use of Fourier reverse transforms in crystallographic phase refinement

    Energy Technology Data Exchange (ETDEWEB)

    Ringrose, Sharon [Iowa State Univ., Ames, IA (United States)

    1997-10-08

    Often a crystallographer obtains an electron density map which shows only part of the structure. In such cases, the phasing of the trial model is poor enough that the electron density map may show peaks in some of the atomic positions, but other atomic positions are not visible. There may also be extraneous peaks present which are not due to atomic positions. A method for determination of crystal structures that have resisted solution through normal crystallographic methods has been developed. PHASER is a series of FORTRAN programs which aids in the structure solution of poorly phased electron density maps by refining the crystallographic phases. It facilitates the refinement of such poorly phased electron density maps for difficult structures which might otherwise not be solvable. The trial model, which serves as the starting point for the phase refinement, may be acquired by several routes such as direct methods or Patterson methods. Modifications are made to the reverse transform process based on several assumptions. First, the starting electron density map is modified based on the fact that physically the electron density map must be non-negative at all points. In practice a small positive cutoff is used. A reverse Fourier transform is computed based on the modified electron density map. Secondly, the authors assume that a better electron density map will result by using the observed magnitudes of the structure factors combined with the phases calculated in the reverse transform. After convergence has been reached, more atomic positions and less extraneous peaks are observed in the refined electron density map. The starting model need not be very large to achieve success with PHASER; successful phase refinement has been achieved with a starting model that consists of only 5% of the total scattering power of the full molecule. The second part of the thesis discusses three crystal structure determinations.

  1. Hirshfeld atom refinement for modelling strong hydrogen bonds.

    Science.gov (United States)

    Woińska, Magdalena; Jayatilaka, Dylan; Spackman, Mark A; Edwards, Alison J; Dominiak, Paulina M; Woźniak, Krzysztof; Nishibori, Eiji; Sugimoto, Kunihisa; Grabowsky, Simon

    2014-09-01

    High-resolution low-temperature synchrotron X-ray diffraction data of the salt L-phenylalaninium hydrogen maleate are used to test the new automated iterative Hirshfeld atom refinement (HAR) procedure for the modelling of strong hydrogen bonds. The HAR models used present the first examples of Z' > 1 treatments in the framework of wavefunction-based refinement methods. L-Phenylalaninium hydrogen maleate exhibits several hydrogen bonds in its crystal structure, of which the shortest and the most challenging to model is the O-H...O intramolecular hydrogen bond present in the hydrogen maleate anion (O...O distance is about 2.41 Å). In particular, the reconstruction of the electron density in the hydrogen maleate moiety and the determination of hydrogen-atom properties [positions, bond distances and anisotropic displacement parameters (ADPs)] are the focus of the study. For comparison to the HAR results, different spherical (independent atom model, IAM) and aspherical (free multipole model, MM; transferable aspherical atom model, TAAM) X-ray refinement techniques as well as results from a low-temperature neutron-diffraction experiment are employed. Hydrogen-atom ADPs are furthermore compared to those derived from a TLS/rigid-body (SHADE) treatment of the X-ray structures. The reference neutron-diffraction experiment reveals a truly symmetric hydrogen bond in the hydrogen maleate anion. Only with HAR is it possible to freely refine hydrogen-atom positions and ADPs from the X-ray data, which leads to the best electron-density model and the closest agreement with the structural parameters derived from the neutron-diffraction experiment, e.g. the symmetric hydrogen position can be reproduced. The multipole-based refinement techniques (MM and TAAM) yield slightly asymmetric positions, whereas the IAM yields a significantly asymmetric position.

  2. VT Data - Cons/Rec Overlay District 20110301, Winhall

    Data.gov (United States)

    Vermont Center for Geographic Information — Conservation and Recreatioal Protection overaly districts for the Town of Winhall, Vermont. Other overlay districts (Transfer of Development Rights, and Scenic...

  3. Ontario Power Authority district energy research report : final report

    International Nuclear Information System (INIS)

    2010-02-01

    This paper presented an analysis of the technical and economic characteristics of district energy in Ontario. The market context for district energy was evaluated, and institutional issues that may influence the future development and operation of district energy systems in Ontario were explored. Technical, economic, and environmental analyses of district energy based on different neighbourhood sizes, types, and district energy systems were presented. Three case studies were included to demonstrate real world district energy applications. A set of interviews conducted with representatives of the province's district energy supply chain was also provided in order to provide a framework for district energy opportunities and challenges within the province. 22 tabs., 16 figs.

  4. CERP in Afghanistan: Refining Military Capabilities in Development Activities

    Science.gov (United States)

    2012-03-01

    agribusiness development teams (ADTs) in 2008 to augment PRTs and agricul- tural expertise and to assist in the revitalization of Afghanistan’s... agribusiness sector.13 Regardless of their numbers, USAID and State personnel assigned to PRTs and District Support Teams have access to several...tool in stability operations. Institutionalize agribusiness development teams. The military should formalize the ADT structure in the Army

  5. 40 CFR 80.551 - How does a refiner obtain approval as a small refiner under this subpart?

    Science.gov (United States)

    2010-07-01

    ...) Applications for motor vehicle diesel fuel small refiner status must be submitted to EPA by December 31, 2001...-operational between January 1, 1999, and January 1, 2000, the application for motor vehicle diesel fuel small...: (1) For motor vehicle diesel fuel small refiners— (i) A listing of the name and address of each...

  6. Role of manganese on the grain refining efficiency of AZ91D magnesium alloy refined by Al4C3

    International Nuclear Information System (INIS)

    Liu Shengfa; Zhang Yuan; Han Hui

    2010-01-01

    A novel Mg-50% Al 4 C 3 (hereafter in wt.%) master alloy has been developed by powder in situ synthesis process, the role of manganese on the grain refining efficiency of AZ91D magnesium alloy refined by this master alloy has been investigated. X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS) results show the existence of Al 4 C 3 particles in this master alloy. After addition of 0.6% Al 4 C 3 or combined addition of 0.6% Al 4 C 3 and 0.27% Mn, the average grain size of AZ91D decreased dramatically from 360 μm to 210 μm, and from 360 μm to130 μm, respectively. However, no further refinement of grain size was achieved with additional amount of Mn exceeding 0.27% for AZ91D alloy refined by 0.6% Al 4 C 3 in the present investigation. Al-C-O-Mn-Fe-rich intermetallic particles with an Al-C-O-rich coating film, often observed in the central region of magnesium grains of the AZ91D alloy treated by the combination of Al 4 C 3 and Mn, are proposed to be the potent nucleating substrates for primary α-Mg.

  7. Fitossociologia de sub-bosque de cerrado em talhão de Eucalyptus grandis W. Hill ex Maiden no município de Bom Despacho-MG

    Directory of Open Access Journals (Sweden)

    Saporetti Jr. Amilcar Walter

    2003-01-01

    Full Text Available O Cerrado, o segundo maior bioma brasileiro, apresenta uma crescente área sujeita a impactos variados, o que desperta a necessidade de conservá-lo e desenvolver métodos para seu uso sustentável. Os objetivos do presente trabalho foram realizar um levantamento florístico e fitossociológico de regeneração em um Cerrado no município de Bom Despacho - MG e embasar tomadas de decisões para conservação da biodiversidade. Para o estudo foram instaladas 15 parcelas de 200 m² (10 x 20 m em uma área originalmente de Cerrado, que atualmente encontra-se ocupada por um plantio de Eucalyptus grandis. A distribuição das parcelas foi feita sistematicamente. Foram amostradas todas as plantas lenhosas eretas com CAB - ao nível do solo - maior ou igual a 10 cm. A composição florística apresentou 39 espécies, distribuídas em 24 famílias. As famílias com maior número de espécies foram Leguminosae Caesalpinioideae, com cinco espécies, Myrtaceae, com quatro, e Melastomataceae, com três, seguidas de Annonaceae, Leguminosae Papilionoideae, Nyctaginaceae, Rubiaceae e Vochysiaceae, com duas. A espécie que apresentou o maior VI foi Eucalyptus grandis (42,03%, seguida das Miconia albicans (7,69%, Brosimum gaudichaudii (6,9%, Eugenia dysenterica (4,99%, Qualea grandiflora (3,11% e Xylopia aromatica (3,01%. Das 39 espécies lenhosas nativas encontradas no sub-bosque de Eucalyptus grandis, 27 são peculiares do Cerrado e as demais são acessórias, vindas de florestas da região. Esses dados mostram que o Cerrado está em regeneração.

  8. “É BOM APRENDER”: DISCUSSÕES SOBRE GÊNERO E DIVERSIDADE SEXUAL NOS LIVROS DIDÁTICOS DA EDUCAÇÃO DE JOVENS E ADULTOS

    Directory of Open Access Journals (Sweden)

    Francisca Jocineide da Costa e Silva

    2015-10-01

    Full Text Available Este trabalho de conclusão do Curso de Pedagogia objetivou analisar como se configura a abordagem das temáticas de gênero, sexualidade e orientação sexual nos três livros didáticos da coleção “É Bom Aprender” destinados à modalidade de Educação de Jovens e Adultos e adotados em uma escola pública de João Pessoa. O procedimento utilizado foi análise de conteúdo, incluindo os textos e as imagens, a partir das seguintes questões norteadoras: Que noções acerca de gênero e da sexualidade os livros apresentam? O que e como está sendo veiculado nos livros: preconceitos sexistas e homo/lesbo/transfóbicos ou direitos sexuais e reprodutivos para meninos/homens e meninas/mulheres? Os livros possibilitam o entendimento e/ou discussão sobre a equidade de gênero e o respeito e valorização das diferenças sexuais? Como? Registrou-se a quantidade de aparições de referências artísticas de todos os âmbitos culturais, tanto nos textos, como nas imagens; de textos de todos os gêneros e tipos sobre homens e mulheres e assinados por eles e elas; de imagens de homens e mulheres em geral; de imagens relacionadas a atributos ditos masculinos e femininos, em especial nos âmbitos do lar e do trabalho da rua; de linguagem sexista e não-sexista; de temas propiciadores de discussão sobre sexualidade e orientação sexual. Encontrou-se que a apresentação de imagens e textos relacionados aos homens foi significativamente superior à das mulheres, com exceção de imagens relacionadas ao lar. Verificou-se também que a linguagem utilizada é predominantemente sexista. Observou-se que os livros não propiciam diretamente a discussão sobre a diversidade sexual. Nesse sentido, concluiu-se que o livro didático pouco contribui diretamente para a prática pedagógica focada na equidade e na diversidade sexual e de gênero, cabendo ao/à educador/a criar outros recursos a fim de desenvolver um projeto curricular comprometido com este tema

  9. Keepers of law and order x outlaws: Police brutality, torture and execution in Elite Squad “Bandido bom é bandido morto”: violência policial, tortura e execuções em Tropa de Elite

    Directory of Open Access Journals (Sweden)

    Simone Maria Rocha

    2010-07-01

    Full Text Available The aim of this work is to investigate how Brazilian movies use representations of violence and symbolic oppression to evidence the police abuse of force in actions performed to fight crime in Brazilian slums. A recent Brazilian movie, Elite Squad (2007 shows that police methods of torture are used to obtain confessions, sometimes leading to cold blood executions without previous judgment. Police brutality against slum citizens implicitly induces the assumption – commonly tolerated in Brazil - that “a good criminal is a dead criminal”. The movie analysis depicted here focus on representations that clearly points out to violation of human rights and the mistreatment given by police to poor and marginalized citizens. We argue that those citizens are not perceived as worth human beings but as enemies to be eliminated. Therefore citizenship is not only a restricted matter of human rights but also one of misrecognition. Our analysis is based on a “diagnostic criticism of culture” (Kellner, 2001 which emphasizes: a the social horizon of the movie and b its discursive field (analysis of the message and visual resources. O propósito deste artigo é investigar como os filmes brasileiros usam representações da violência e da opressão simbólica para mostrar o abuso da força policial em ações de combate contra o crime nas favelas brasileiras. Analisaremos um filme recente, Tropa de Elite (2007, no qual métodos de tortura são usados para obtenção de confissões e execuções a sangue frio são feitas sem nenhum julgamento, corroborando a máxima segundo a qual “bandido bom é bandido morto”. A violação dos direitos humanos será discutida enfocando-se a questão de como os policiais lidam com os cidadãos pobres e marginalizados trazendo à tona o fato de que cidadania no Brasil é um tema que deve ser tratado como uma questão de direitos humanos, mas também, como de reconhecimento social. Metodologicamente, nossa análise est

  10. District heat: who is to pay

    Energy Technology Data Exchange (ETDEWEB)

    1981-05-01

    Away from petroleum, is the slogan used by all politicians. And the sellers of power energies keep repeating this and interpret it as they like. But none ofthose responsible tells the public with what to heat if not with petroleum. Those offering district heating consider themselves to have the biggest chances for the area after fuel oil. Although the costs of district heating are enormously high. The people should be suspicious if district heating projects are given new economical weight under the perspective of creating new places of employment.

  11. Basic effects of pulp refining on fiber properties--a review.

    Science.gov (United States)

    Gharehkhani, Samira; Sadeghinezhad, Emad; Kazi, Salim Newaz; Yarmand, Hooman; Badarudin, Ahmad; Safaei, Mohammad Reza; Zubir, Mohd Nashrul Mohd

    2015-01-22

    The requirement for high quality pulps which are widely used in paper industries has increased the demand for pulp refining (beating) process. Pulp refining is a promising approach to improve the pulp quality by changing the fiber characteristics. The diversity of research on the effect of refining on fiber properties which is due to the different pulp sources, pulp consistency and refining equipment has interested us to provide a review on the studies over the last decade. In this article, the influence of pulp refining on structural properties i.e., fibrillations, fine formation, fiber length, fiber curl, crystallinity and distribution of surface chemical compositions is reviewed. The effect of pulp refining on electrokinetic properties of fiber e.g., surface and total charges of pulps is discussed. In addition, an overview of different refining theories, refiners as well as some tests for assessing the pulp refining is presented. Copyright © 2014 Elsevier Ltd. All rights reserved.

  12. SECURE nuclear district heating plant

    International Nuclear Information System (INIS)

    Nilsson; Hannus, M.

    1978-01-01

    The role foreseen for the SECURE (Safe Environmentally Clean Urban REactor) nuclear district heating plant is to provide the baseload heating needs of primarily the larger and medium size urban centers that are outside the range of waste heat supply from conventional nuclear power stations. The rationale of the SECURE concept is that the simplicity in design and the inherent safety advantages due to the use of low temperatures and pressures should make such reactors economically feasible in much smaller unit sizes than nuclear power reactors and should make their urban location possible. It is felt that the present design should be safe enough to make urban underground location possible without restriction according to any criteria based on actual risk evaluation. From the environmental point of view, this is a municipal heat supply plant with negligible pollution. Waste heat is negligible, gaseous radioactivity release is negligible, and there is no liquid radwaste release. Economic comparisons show that the SECURE plant is competitive with current fossil-fueled alternatives. Expected future increase in energy raw material prices will lead to additional energy cost advantages to the SECURE plant

  13. Hot springs in Hokuriku District

    Energy Technology Data Exchange (ETDEWEB)

    Sato, K. (Hot Springs Research Center, Japan)

    1971-01-01

    In the Hokuriku district including Toyama, Ishikawa, and Fukui Prefectures, hot springs of more than 25/sup 0/C were investigated. In the Toyama Prefecture, there are 14 hot springs which are located in an area from the Kurobe River to the Tateyama volcano and in the mountainous area in the southwest. In Ishikawa Prefecture there are 16 hot springs scattered in Hakusan and its vicinity, the Kaga mountains, and in the Noto peninsula. In northern Fukui Prefecture there are seven hot springs. The hot springs in Shirakawa in Gifu Prefecture are characterized as acid springs producing exhalations and H/sub 2/S. These are attributed to the Quaternary volcanoes. The hot springs of Wakura, Katayamazu, and Awara in Ishikawa Prefecture are characterized by a high Cl content which is related to Tertiary andesite. The hot springs of Daishoji, Yamanaka, Yamashiro, Kuritsu, Tatsunokuchi, Yuwaku, and Yunotani are characterized by a low HCO/sub 3/ content. The Ca and SO/sub 4/ content decreases from east to west, and the Na and Cl content increases from west to east. These fluctuations are related to the Tertiary tuff and rhyolite. The hot springs of Kuronagi, Kinshu, and Babadani, located along the Kurobe River are characterized by low levels of dissolved components and high CO/sub 2/ and HCO/sub 3/ content. These trends are related to late Paleozoic granite. Hot springs resources are considered to be connected to geothermal resources. Ten tables, graphs, and maps are provided.

  14. Refinement and standardization of synthetic biological parts and devices.

    Science.gov (United States)

    Canton, Barry; Labno, Anna; Endy, Drew

    2008-07-01

    The ability to quickly and reliably engineer many-component systems from libraries of standard interchangeable parts is one hallmark of modern technologies. Whether the apparent complexity of living systems will permit biological engineers to develop similar capabilities is a pressing research question. We propose to adapt existing frameworks for describing engineered devices to biological objects in order to (i) direct the refinement and use of biological 'parts' and 'devices', (ii) support research on enabling reliable composition of standard biological parts and (iii) facilitate the development of abstraction hierarchies that simplify biological engineering. We use the resulting framework to describe one engineered biological device, a genetically encoded cell-cell communication receiver named BBa_F2620. The description of the receiver is summarized via a 'datasheet' similar to those widely used in engineering. The process of refinement and characterization leading to the BBa_F2620 datasheet may serve as a starting template for producing many standardized genetically encoded objects.

  15. Corrosion problems and solutions in oil refining and petrochemical industry

    CERN Document Server

    Groysman, Alec

    2017-01-01

    This book addresses corrosion problems and their solutions at facilities in the oil refining and petrochemical industry, including cooling water and boiler feed water units. Further, it describes and analyzes corrosion control actions, corrosion monitoring, and corrosion management. Corrosion problems are a perennial issue in the oil refining and petrochemical industry, as they lead to a deterioration of the functional properties of metallic equipment and harm the environment – both of which need to be protected for the sake of current and future generations. Accordingly, this book examines and analyzes typical and atypical corrosion failure cases and their prevention at refineries and petrochemical facilities, including problems with: pipelines, tanks, furnaces, distillation columns, absorbers, heat exchangers, and pumps. In addition, it describes naphthenic acid corrosion, stress corrosion cracking, hydrogen damages, sulfidic corrosion, microbiologically induced corrosion, erosion-corrosion, and corrosion...

  16. Probing the moduli dependence of refined topological amplitudes

    Directory of Open Access Journals (Sweden)

    I. Antoniadis

    2015-12-01

    Full Text Available With the aim of providing a worldsheet description of the refined topological string, we continue the study of a particular class of higher derivative couplings Fg,n in the type II string effective action compactified on a Calabi–Yau threefold. We analyse first order differential equations in the anti-holomorphic moduli of the theory, which relate the Fg,n to other component couplings. From the point of view of the topological theory, these equations describe the contribution of non-physical states to twisted correlation functions and encode an obstruction for interpreting the Fg,n as the free energy of the refined topological string theory. We investigate possibilities of lifting this obstruction by formulating conditions on the moduli dependence under which the differential equations simplify and take the form of generalised holomorphic anomaly equations. We further test this approach against explicit calculations in the dual heterotic theory.

  17. Segmental Refinement: A Multigrid Technique for Data Locality

    Energy Technology Data Exchange (ETDEWEB)

    Adams, Mark [Columbia Univ., New York, NY (United States). Applied Physics and Applied Mathematics Dept.; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2014-10-27

    We investigate a technique - segmental refinement (SR) - proposed by Brandt in the 1970s as a low memory multigrid method. The technique is attractive for modern computer architectures because it provides high data locality, minimizes network communication, is amenable to loop fusion, and is naturally highly parallel and asynchronous. The network communication minimization property was recognized by Brandt and Diskin in 1994; we continue this work by developing a segmental refinement method for a finite volume discretization of the 3D Laplacian on massively parallel computers. An understanding of the asymptotic complexities, required to maintain textbook multigrid efficiency, are explored experimentally with a simple SR method. A two-level memory model is developed to compare the asymptotic communication complexity of a proposed SR method with traditional parallel multigrid. Performance and scalability are evaluated with a Cray XC30 with up to 64K cores. We achieve modest improvement in scalability from traditional parallel multigrid with a simple SR implementation.

  18. Biodiesel obtained from soapstock originated in a refining oil industry

    International Nuclear Information System (INIS)

    Tobio Pérez, Indira; Díaz Domínguez, Yosvany; Piloto-Rodríguez, Ramón

    2017-01-01

    In the vegetable oil chemical refining process is obtained a by-product commonly named as soapstock, due to its physical and aspect properties. The soapstock free fatty acid content can reach to 50%. The present work shows a survey of researches focused on biodiesel obtaining from this by-product. The biodiesel is obtained following different routes and catalyzers features. A variety of reports shown the effectivity of the use of this by-product derived from vegetable oil refining industry to produce biodiesel. Several studies are addressed to the acid oil recovering involving processes without soapstock acidulation, with the aim of lowering costs and finding more attractive yields closing to the concept of zero wastes. (author)

  19. Unit-cell refinement from powder diffraction scans

    International Nuclear Information System (INIS)

    Pawley, G.S.

    1981-01-01

    A procedure for the refinement of the crystal unit cell from a powder diffraction scan is presented. In this procedure knowledge of the crystal structure is not required, and at the end of the refinement a list of indexed intensities is produced. This list may well be usable as the starting point for the application of direct methods. The problems of least-squares ill-conditioning due to overlapping reflections are overcome by constraints. An example using decafluorocyclohexene, C 6 F 10 , shows the quality of fit obtained in a case which may even be a false minimum. The method should become more relevant as powder scans of improved resolution become available, through the use of pulsed neutron sources. (Auth.)

  20. Bitumen to refined products and petrochemicals : a preliminary assessment

    International Nuclear Information System (INIS)

    Crandall, G.

    2004-01-01

    Purvin and Gertz is an energy consulting firm that provides advise to the energy sector. A review of western Canadian crude oil supply suggests that oil sands production will surpass declining conventional production. Oil sands supply includes synthetic crude oil (SCO), bitumen and diluent. It is expected that oil sands will increase from 42 per cent of western supply in 2002 to 78 per cent in 2015. This presentation reviewed the potential of Alberta's oil sands and presented a recent study of refined products and petrochemicals from bitumen. Upgrading, refining and petrochemical case studies were presented. In particular, the author examined if a Canadian oil sands upgrading project with high capital costs can be competitive with competing projects in the United States and internationally. In addition to supply and demand issues, the presentation examined infrastructure capability and market potential in the United States. The economic potential and risks of preferred business cases compared to upgrading to SCO were also evaluated. tabs., figs