Probing the gateway to superheavy nuclei in cranked relativistic Hartree-Bogoliubov theory

The cranked relativistic Hartree+Bogoliubov theory has been applied for a systematic study of the nuclei around 254No, the heaviest nuclei for which detailed spectroscopic data are available. The deformation, rotational response, pairing correlations, quasi-particle and other properties of these nuclei have been studied with different relativistic mean field (RMF) parametrizations. For the first time, the quasi-particle spectra of odd deformed nuclei have been calculated in a fully self-consistent way within the framework of the RMF theory. The energies of the spherical subshells, from which active deformed states of these nuclei emerge, are described with an accuracy better than 0.5 MeV for most of the subshells with the NL1 and NL3 parametrizations. However, for a few subshells the discrepancy reach 0.7-1.0 MeV. The implications of these results for the study of superheavy nuclei are discussed.Comment: 7 pages, 3 figures, Proceedings of the Conference on Frontiers of Nuclear Structure, Berkeley, California, July 29th - August 2nd, 2002, UC Berkeley, Clark Kerr Campus, in pres

Pool boiling on modified surfaces using R-123

This article has been made available through the Brunel Open Access Publishing Fund.Saturated pool boiling of R-123 was investigated for five horizontal copper surfaces modified by different treatments, namely, an emery-polished surface, a fine sandblasted surface, a rough sandblasted surface, an electron beam-enhanced surface, and a sintered surface. Each 40-mm-diameter heating surface formed the upper face of an oxygen-free copper block, electrically heated by embedded cartridge heaters. The experiments were performed from the natural convection regime through nucleate boiling up to the critical heat flux, with both increasing and decreasing heat flux, at 1.01 bar, and additionally at 2 bar and 4 bar for the emery-polished surface. Significant enhancement of heat transfer with increasing surface modification was demonstrated, particularly for the electron beam-enhanced and sintered surfaces. The emery-polished and sandblasted surface results are compared with nucleate boiling correlations and other published data. © 2014 Syed W. Ahmad, John S. Lewis, Ryan J. McGlen, and Tassos G. Karayiannis Published with license by Taylor & Francis

THE ROLE OF RISK ASSESSMENT IN MANAGING RISK

Risk and Uncertainty,

Active neutrino Oscillations and the SNO neutral Current measurement

We discuss the relation between the observed CC, ES, and NC fluxes with the flavor fractional content of the solar neutrino flux seen by SNO. By using existing estimates of the cross sections for the charged and neutral current reactions which take into account the detector resolution, we show how the forthcoming SNO rates unconstrained by the standard $^8$B shape could test the oscillations into active states. We perform a model independent analysis for the Super-K and SNO data, assuming a non distorted spectrum.Comment: 6pages, 4 figure

Pengaruh Kompos Kotoran Kuda terhadap Pertumbuhan Kacang Panjang (Phaseolus Vulgaris L)

Penelitian tentang pengaruh kompos terhadap pertumbuhan kacang panjang, telah dilaksanakan di Desa Sukarare Kabupaten Lombok Tengah. Tujuan dilaksanakannya penelitian ini adalah untuk mengetahui: (1) pengaruh kompos terhadap pertumbuhan kacang panjang pada lahan pertanian Desa Sukarare, (2) dosis kompos yang perlu diberikan pada lahan pertanian Desa Sukarare agar tanaman kacang panjang tumbuh secara optimal. Dalam penelitian ini digunakan rancangan acak kelompok dengan delapan ulangan. Data penelitian dianalisis dengan analisis sidik ragam dan uji lanjut dengan Uji Beda Nyata Terkecil (BNT). Hasil penelitian menunjukkan bahwa (1) penggunaan kompos pada lahan pertanian Desa Sukarare berpengaruh nyata terhadap pertumuhan kacang panjang, (2) kadar optimum kompos yang perlu diberikan pada lahan pertanian Desa Sukarare agar kacang panjang tumbuh secara optimal adalah 2,0 kg untuk setiap 1 m2 lahan pertanian Kata

Pengaruh Jenis Mulsa dan Dosis Pupuk Npk terhadap Pertumbuhan dan Hasil Tanaman Terong Hijau (Solanum Melongena L)

Upaya peningkatan pertumbuhan dan hasil tanaman dapat dilakukan dengan penggunaan mulsa dan pemupukan tanaman. Salah satu pupuk sintetik yang dapat digunakan untuk meningkatkan pertumbuhan dan hasil tanaman adalah pupuk NPK. Penelitian tentang pengaruh jenis mulsa dan dosis pupuk NPK terhadap pertumbuhan dan hasil tanaman terong hijau, telah dilaksanakan di Desa Sukarara Kabupaten Lombok Tengah. Tujuan penelitian ini adalah untuk mengetahui: (1) pengaruh jenis mulsa terhadap pertumbuhan dan hasil tanaman terong hijau, (2) pengaruh dosis pupuk NPK terhadap pertumbuhan dan hasil tanaman terong hijau, (3) pengaruh interaksi jenis mulsa dan pupuk NPK terhadap pertumbuhan dan hasil terong hijau. Dalam penelitian ini digunakan rancangan faktorial yang terdiri atas 2 faktor. Faktor pertama adalah jenis mulsa dan faktor kedua adalah dosis pupuk NPK. Data penelitian dianalisis dengan analisis sidik ragam. Hasil penelitian menunjukkan bahwa (1) penggunaaan mulsa plastik hitam perak memberikan hasil yang lebih baik terhadap pertumbuhan dan hasil tanaman terong hijau dibandingkan mulsa jerami padi. (2) Perlakuan pupuk NPK dengan dosis 20 gram per tanaman meberikan pertumbuhan dan hasil tanaman terong hijau yang lebih baik dari pada perlakuan yang lain (3) interaksi jenis mulsa dan pupuk NPK berpengaruh nyata terhadap pertumbuhan dan hasil terong hijau. Petani yang menanam terong hijau direkombinasikan untuk menggunakan pupuk NPK dengan dosis 20 gram per tanaman

Aplikasi Pupuk Organik dan Npk untuk Meningkatkan Pertumbuhan Vegetatif Melon (Cucumis Melo L.)

Pupuk merupakan kebutuhan yang sangat vital bagi tanaman. Di dalam pupuk terkandung berbagai unsur hara yang sangat penting untuk mendukung pertumbuhan tanaman. Pemupukan tanaman dapat dilakukan dengan menggunakan pupuk sintetik maupun pupuk organik. Telah dilakukan penelitian tentang aplikasi pupuk organik dan pupuk NPK untuk meningkatkan pertumbuhan vegetatif melon yang bertujuan untuk mengetahui (1) pengaruh aplikasi pupuk organik terhadap pertumbuhan vegetatifmelon, (2)pengaruh aplikasi pupuk NPK terhadap pertumbuhan vegetatifmelon, (3)pengaruh interaksi pupuk organik dan pupuk NPK terhadap pertumbuhan vegetatifmelon.Dalam penelitian ini digunakan Rancangan Faktorial yang terdiri atas 2 faktor. Faktor pertama adalah dosis pupuk organik dan faktor kedua adalah dosis pupuk NPK. Perlakuan pupuk organik terdiri atas 4 level yaitu: Po = tampa pemberian pupukorganik (kontrol), P1 = pemberian 0,5 kg pupuk organik/1 m2 lahan, P2 = pemberian 1,0 kg pupuk organik/1 m2 lahan, P3 = pemberian 1,5 kg pupuk organik/1 m2 lahan, Selanjutnya faktor pupuk NPK terdiri atas 5 level yaitu, N0 = tampa pemberian pupuk NPK (kontrol), N1 = pemberian 5 gram pupuk NPK/tanaman, N2 = pemberian 10 grampupuk NPK/tanaman, N3 = pemberian 15 grampupuk NPK/tanaman, N4 = pemberian 20 gr pupuk NPK/tanaman.Parameter pertumbuhan yang diukur adalahpanjang batang dan panjang daun melon, Data kuantitatif hasi pengukuran parameter di atas dianalisis dengan analisis sidik ragam.Dalam penelitian ini disimpulkan bahwa aplikasi pupuk organik berpengaruh sangat nyata terhadap pertumbuhan vegetatif melon. Aplikasi pupuk NPK berpengaruh sangat nyata terhadap pertumbuhan melon. Interaksi pupuk organik dan pupuk NPK tidak berpengaruh nyata terhadap pertumbuhan vegetatif melon

Neural Network-Based Equations for Predicting PGA and PGV in Texas, Oklahoma, and Kansas

Parts of Texas, Oklahoma, and Kansas have experienced increased rates of seismicity in recent years, providing new datasets of earthquake recordings to develop ground motion prediction models for this particular region of the Central and Eastern North America (CENA). This paper outlines a framework for using Artificial Neural Networks (ANNs) to develop attenuation models from the ground motion recordings in this region. While attenuation models exist for the CENA, concerns over the increased rate of seismicity in this region necessitate investigation of ground motions prediction models particular to these states. To do so, an ANN-based framework is proposed to predict peak ground acceleration (PGA) and peak ground velocity (PGV) given magnitude, earthquake source-to-site distance, and shear wave velocity. In this framework, approximately 4,500 ground motions with magnitude greater than 3.0 recorded in these three states (Texas, Oklahoma, and Kansas) since 2005 are considered. Results from this study suggest that existing ground motion prediction models developed for CENA do not accurately predict the ground motion intensity measures for earthquakes in this region, especially for those with low source-to-site distances or on very soft soil conditions. The proposed ANN models provide much more accurate prediction of the ground motion intensity measures at all distances and magnitudes. The proposed ANN models are also converted to relatively simple mathematical equations so that engineers can easily use them to predict the ground motion intensity measures for future events. Finally, through a sensitivity analysis, the contributions of the predictive parameters to the prediction of the considered intensity measures are investigated.Comment: 5th Geotechnical Earthquake Engineering and Soil Dynamics Conference, Austin, TX, USA, June 10-13. (2018

The Excellence Class Learning Atmosphere of English for Biology II Biology Education Study Program Faculty of Teacher Training and Education University of Riau

A descriptive study on learning atmosphere in the excellence BiologyTeacher\u27s Education Program, The Faculty of Teacher Training and Education,University of Riau has been conducted in the Even Semester of the AcademicYear 2012/2013. The objective was to find out the learning atmosphere inEnglish for Biology II courses. As much as eighteen students have been defined asthe total respondents by total sampling technique. Data of seven indicatorslearning atmosphere, namely: (1) cohesiveness, (2) lecture support, (3)involvement, (4) investigation, (5) task orientation, (6) cooperation, and (7)lecture equity obtained by questionnaire What Is Happening In this Class(WIHIC). The questionnaire was valid (rxy0,54>critical values0,3) dan reliabel(r110,96>critical values0,7). The questionnaires were directly ditributed to therespondents at the end of the semester. Supplements data were taken by videorecording during the learning process. All data were analyzed descriptively. Theresults showed that learning atmosphere English for Biology II were consideredvery conducive from aspects of cohesiveness of relationship between students,task orientation, cooperation and lecture equity. While the lecture support,involvement, and student investigations were considered is enough conducive. Inclonclusion, the learning atmosphere of English for Biology II by using Research-based teaching were considered was enough conducive. However, the learningatmosphere of English for Biology II is still needs to be improved in order tobecome very conducive, especially with regard to indicators of lecturer support,student involvement and investigation

Kualitas Air Sumur Dikelurahan Telukbetung Kecamatan Telukbetung Selatan Kota Bandar Lampung

This study was aimed to determine the well water quality standards at Telukbetung. Research methods used experimental method. The population of this study was all wels located in the District Telukbetung and the samples which required were the three wells. There were three indicators which were used in the study, they were indicators of chemical, physical indicators and indicators of microbiological.Testing results performed on laboratory samples of chemistry and microbiologi in 2013.The results of the three sample wells (1) first samples temperature is 26.4 °C, no smell, no feel, TDS 102mg/l, clear, colorless, pH 7.0mg/l, BOD 1.1mg/l, ammonia 0.05mg/l, fecal coli 26MPM/100ml and coliform 320MPM/100ml.(2) a second samples temperature is 26.5 °C, no smell, no feel, TDS 117mg/l, is not clear, colorless, pH 7.1mg/l, BOD 1.0mg/l, ammonia 0.03mg/l, fecal coli and coliform 12MPM/100ml 189MPM/100ml.Penelitian ini bertujuan untuk mengetahui standar kualitas air sumur warga Kelurahan Telukbetung. Metode penelitian ini menggunakan metode eksperimen. Populasi penelitian ini adalah keseluruhan sumur yang berlokasi di Kelurahan Telukbetung dan sampel yang dipilih yaitu tiga sumur.Indikator yang dipergunakan dalam penelitian ini adalah indikator kimiawi, indikator fisik dan indikator mikrobiologi.Pengujian hasil sampel dilakukan di laboratorium kimia Universitas Lampung dan mikrobiologi tahun 2013.Hasil penelitian terhadap ketiga sampel sumur (1) Sampel pertama suhu 26.4°C, tidak berbau, tidak berasa, TDS 102mg/l, jernih, tidak berwarna, pH 7.0mg/l, BOD 1.1mg/l, amonia 0.05mg/l, fecal coli 26MPM/100ml dan coliform 320MPM/100ml. (2) Sampel kedua suhu 26.5°C, tidak berbau, tidak berasa, TDS 117mg/l, tidak jernih, tidak berwarna, pH 7.1mg/l, BOD 1.0mg/l, amonia 0.03mg/l, fecal coli 12MPM/100ml dan coliform 189MPM/100ml