bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Interaksi Genotipe x Lingkungan dan Stabilitas Galur Mutan Harapan Kacang Hijau [Vigna radiata (L.)]
Authors: M.Si Yuliasti,
Published: August 2017

Analisis Interaksi Genotipe x Lingkungan dan Stabilitas Galur Mutan Harapan Kacang Hijau [Vigna radiata (L.)]. Analisis Interaksi genotipe × lingkungan merupakan salah satu langkah penting yang tepat untuk menduga kesesuaian genotipe galur mutan harapan kacang hijau dalam beradaptasi pada lingkungan yang beragam. Dalam penelitian ini, sembilan galur mutan harapan dan dua varietas kacang hijau di tanam di enam belas lokasi selama 2008- 2012 untuk menentukan stabilitas hasil biji dan kemampuan beradaptasi. Penelitian ini menggunakan rancangan acak kelompok dengan empat ulangan. Analisis gabungan untuk karakter hasil dilakukan mengikuti prosedur baku. Stabilitas hasil dan adaptasi hasil dianalisis dengan menggunakan koefisien regresi (bi), rata-rata hasil dan simpangan regresi oleh Finlay-Wilkinson dan metode Eberhart-Russell. Dari hasil penelitian ini, dapat disimpulkan bahwa galur mutan harapan kacang hijau PsJ S-31 memperlihatkan hasil yang tinggi (2,47 ton/ha), dan diklasifikasikan sebagai galur yang stabil dengan metode analisis stabilitas Finlay-Wilkinson, Eberhart - Russel. PsJS-31 dapat direkomendasikan kepada petani berdasarkan pada keragaan stabilitas dan potensi hasil tinggi selama seleksi. Mutan PsJS-31 telah dirilis sebagai varietas baru pada tahun 2013 dengan nama Muri.
Dinamika Fosfat Pada Aplikasi Kompos Jerami-Biochar dan Pemupukan Fosfat Pada Tanah Sawah
Authors: Citraresmini, MP Dr. Ania , Bachtiar Taufiq , Bachtiar Taufiq
Published: August 2017

Produktivitas tanah ditentukan oleh karakteristik tanah, yang terdiri dari sifat fisik, kimia dan biologi tanah. Keterkaitan di antara ketiga sifat tersebut dapat diwakili oleh satu indikator yaitu kandungan karbon dalam tanah.Salah satu dampak dari pemenuhan kebutuhan bahan organik tanah adalah terpenuhinya kebutuhan unsur hara, terutama hara utama yang menjadi pembatas pada pertanaman padi sawah. Dalam hal ini unsur hara P menjadi faktor pembatas, karena seringkali berada dalam jumlah berlimpah namun dalam bentuk yang tidak dapat dimanfaatkan oleh tanaman. Percobaan dilakukan dengan tujuan mempelajari dampak aplikasi bahan organik kompos jerami yang diintegrasikan dengan Biochar, terhadap ketersediaan hara P pada tanah sawah. Interaksi kompos jerami+Biochar dengan inokulan BPF dan sumber-sumber P menjadi rancangan perlakuan yang diujikan dalam percobaan. Disain percobaan menerapkan rancangan acak kelompok dengan pola faktorial, menetapkan dosis aplikasi kompos jerami+Biochar sebagai taraf pertama yang terdiri dari 5 taraf level : 0; 1; 2; 3; 4 t ha-1. Faktor kedua adalah sumber P, yang terdiri dari 5 taraf level : tanpa fosfat (p0); 100 kg ha-1 pupuk SP-36 (p1); fosfat alam pada dosis 163 kg ha-1 (p2); inokulan BPF pada dosis 2 kg ha-1 (p3); dan fosfat alam berinokulan BPF (p4). Percobaan dilaksanakan di rumah kaca kebun percobaan PAIR – BATAN, Jakarta, pada bulan Maret 2014. Dinamika P akibat perlakuan yang diujikan, digambarkan dari hasil penelusuran menggunakan radioisotop 32P aktivitas 30 mCi melalui serapan P pada tanaman padi varietas Sidenuk. Hasil percobaan menunjukkan perlakuan yang diberikan menyebabkan perbedaan signifikan pada respons kandungan C-organik tanah, jumlah populasi BPF, cacahan 32P tanaman dan serapan P dari berbagai sumber di dalam tanaman padi.
ANALISIS KESELAMATAN TERMOHIDROLIK BULK SHIELDING REAKTOR KARTINI
Authors: Khakim Azizul
Published: August 2017

ABSTRAK ANALISIS KESELAMATAN TERMOHIDROLIK BULK SHIELDING REAKTOR KARTINI. Bulk shielding merupakan fasilitas yang terintegrasi dengan reaktor Kartini yang berfungsi sebagai penyimpanan sementara bahan bakar bekas. Fasilitas ini merupakan fasilitas yang termasuk dalam struktur, sistem dan komponen (SSK) yang penting bagi keselamatan. Salah satu fungsi keselamatan dari sistem penanganan dan penyimpanan bahan bakar adalah mencegah kecelakaan kekritisan yang tak terkendali dan membatasi naiknya temperatur bahan bakar. Analisis keselamatan paling kurang harus mencakup analisis keselamatan dari sisi neutronik dan termo hidrolik Bulk shielding. Analisis termo hidrolik ditujukan untuk memastikan perpindahan panas dan proses pendinginan bahan bakar bekas berjalan baik dan tidak terjadi akumulasi panas yang mengancam integritas bahan bakar. Code tervalidasi PARET/ANL digunakan untuk analisis pendinginan dengan mode konveksi alam. Hasil perhitungan menunjukkan bahwa mode pendinginan konvekasi alam cukup memadai dalam mendinginkan panas sisa tanpa mengakibatkan kenaikan temperatur bahan bakar yang signifikan. Kata kunci: Bulk shielding, bahan bakar bekas, konveksi alam, PARET.  ABSTRACT THERMAL HYDRAULIC SAFETY ANALYSIS OF BULK SHIELDING KARTINI REACTOR. Bulk shielding is an integrated facility to Kartini reactor which is used for temporary spent fuels storage. The facility is one of the structures, systems and components (SSCs) important to safety. Among the safety functions of fuel handling and storage are to prevent any uncontrolable criticality accidents and to limit the fuel temperature increase. Safety analyses should, at least, cover neutronic and thermal hydraulic calculations of the bulk shielding. Thermal hydraulic analyses were intended to ensure that heat removal and the process of the spent fuels cooling takes place adequately and no heat accumulation that challenges the fuel integrity. Validated code, PARET/ANL was used for analysing the spent fuels cooling with natural convection mode. The calculations results concluded that natural convection cooling mode can adequately cools down the decay heat without significant increase in fuel temperatur. Keywords: bulk shielding, spent fuels, natural convection, PARET.
KARAKTERISTIK PERPINDAHAN PANAS KONVEKSI ALAMIAH ALIRAN NANOFLUIDA AL2O3-AIR DI DALAM PIPA ANULUS VERTIKAL
Authors: Nazar Reinaldy
Published: August 2017

ABSTRAK KARAKTERISTIK PERPINDAHAN PANAS KONVEKSI ALAMIAH ALIRAN NANOFLUIDA AL2O3-AIR DI DALAM PIPA ANULUS VERTIKAL. Hasil beberapa penelitian menunjukan bahwa nanofluida memiliki karakteristik termal yang lebih baik dibandingkan dengan fluida konvensional (air). Berkaitan dengan hal tersebut, saat ini sedang berkembang pemikiran untuk menggunakan nanofluida sebagai fluida perpindahan panas alternatif pada sistem pedingin reaktor. Sementara itu, konveksi alamiah di dalam pipa anulus vertikal merupakan salah satu mekanisme perpindahan panas yang penting dan banyak ditemukan pada reaktor riset TRIGA, reaktor daya generasi baru dan alat konversi energi lainnya. Namun disisi lain karakteristik perpindahan panas nanofluida di dalam pipa anulus vertikal belum banyak diketahui. Oleh karena itu penting dilakukan secara berkesinambungan penelitian-penelitian untuk menganalisis perpindahan panas nanofluida di dalam pipa anulus vertikal. Pada penelitian telah dilakukan analisis numerik menggunakan program computer CFD (computational of fluids dynamic) terhadap karakteristik perpindahan panas konveksi alamiah aliran nanofluida Al2O3-air konsentrasi 2% volume di dalam pipa anulus vertikal. Hasil kajian ini menunjukkan terjadi peningkatan kinerja perpindahan panas (bilangan Nuselt- NU) sebesar 20,5% - 35%. Pada moda konveksi alamiah dengan bilangan 2,4708e+09 £ Ra £ 1,9554e+13 diperoleh korelasi empirik untuk air adalah dan korelasi empirik untuk nanofluida Al2O3-air adalah   Kata kunci: Nanofluida Al2O3-air, konveksi alamiah, pipa anulus vertikal     ABSTRACT THE CHARACTERISTICS OF NATURAL CONVECTIVE HEAT TRANSFER OF AL2O3–WATER NANOFLUIDS FLOW IN A VERTICAL ANNULUS PIPE. Results of several research have shown that nanofluids have better thermal characteristics compared to conventional fluid (water). In this regard, currently developing ideas for using nanofluids as an alternative heat transfer fluid in the reactor coolant system. Meanwhile the natural convection in a vertical annulus pipe is one of the important mechanisms of heat transfer and is found at the TRIGA research reactor, the new generation nuclear power plants and other energy conversion devices. On the other hand the heat transfer characteristics of nanofluids in a vertical annulus pipe has not been known. Therefore, it is important to do research continuously to analyze the heat transfer nanofluids in a vertical annulus pipe. In the research has been carried out numerical analysis by using computer code of CFD (computational of fluids dynamic) on natural convection heat transfer characteristics of nanofluids flow of Al2O3-water 2% volume in the vertical annulus pipe. The results showed an increase in heat transfer performance (Nusselt numbers - NU) by 20.5% - 35%. In natural convection mode with Rayleigh numbers 2.4708e+09 £ Ra £ 1.9554e+13 obtained empirical correlations for water is and empirical correlations for Al2O3-water nanofluids is .   Keywords: Al2O3-water nanofluids, the natural convection, the vertical annulus pipe
EVALUATION ON MECHANICAL FRACTURE OF PWR PRESSURE VESSEL AND MODELING BASED ON NEURAL NETWORK
Authors: Susmikanti Mike , Himawan Roziq , Hafid Abdul , Hartini Entin
Published: August 2017

ABSTRACT EVALUATION ON MECHANICAL FRACTURE OF PWR PRESSURE VESSEL AND MODELING BASED ON NEURAL NETWORK. The important component of the PWR is a pressure vessel. The material resistance in the pressure vessel needs to be evaluated. One way of evaluation is by the mechanical fracture analysis. The modeling needs to know the phenomena of the analysis result in general. A number of researches have been completed on the calculation of mechanical fracture in the pressure vessel with an internal load. The mechanical fracture was modeled using a neural network approach. In relation to the material resistance of the pressure vessel, which is used in PWR AP1000, the material must be evaluated because of the effect of the load. The modeling is needed to predict the effect of the load. The aim of this study is to evaluate the material resistance through mechanical fracture analysis because of the influence load on the pressure vessel on PWR AP1000. The material, which was observed, is SA 508. This analysis consists of the calculation of stress intensity factor and J-integral with some load at the crack propagation position. The fracture mechanic was analyzed by finite element simulation. The result of Stress Intensity factor and J-Integral was compared with fracture toughness to know the durability of the material. The modeling of  J-Integral and Stress Intensity Factor were obtained for some load based on neural network approach. Keywords: Material resistance, mechanical fracture, neural network, PWR, pressure vessel, crack propagation.   ABSTRAK EVALUASI FRAKTUR MEKANIK PADA BEJANA TEKAN PWR DAN PEMODELAN BERBASIS NEURAL NETWORK. Komponen penting dari PWR adalah  bejana tekan. Ketahanan bahan di bejana tekan perlu dievaluasi. Salah satu cara adalah dengan analisis fraktur mekanik. Pemodelan diperlukan untuk mengetahui fenomena hasil analisis pada umumnya. Terdapat penelitian untuk perhitungan fraktur mekanik dalam bejana tekan dengan beban internal. Penelitian lain adalah hasil dari fraktur mekanik dimodelkan menggunakan pendekatan jaringan syaraf. Sehubungan dengan ketahanan material dari bejana tekan yang digunakan dalam PWR AP1000, bahan harus dievaluasi karena efek dari beban. Pemodelan diperlukan untuk memprediksi pengaruh beban pada bahan dalam bejana tekan. Tujuan dari penelitian ini adalah untuk mengevaluasi ketahanan material melalui analisis fraktur mekanik karena pengaruh beban pada bejana tekan. Bahan yang diamati, adalah SA 508. Analisis ini terdiri dari perhitungan faktor intensitas tegangan dan J-integral dengan beberapa beban pada posisi perambatan retak. Fraktur mekanik dianalisis dengan metode elemen hingga. Hasil faktor intensitas tegangan dan J-Integral dibandingkan dengan ketangguhan patah untuk mengetahui daya tahan material. Pemodelan J-Integral dan faktor intensitas stres diperoleh untuk beberapa beban berdasarkan  jaringan saraf. Kata kunci: Ketahanan bahan, teknik patahan,  jaringan syaraf,  PWR,  bejana tekan, perambatan retak.
PENGARUH BENTUK ROUTING PERPIPAAN SISTEM PENDINGIN PRIMER REAKTOR TRIGA KONVERSI TERHADAP PENURUNAN AKTIVITAS N-16 DI PERMUKAAN TANGKI REAKTOR
Authors: Wardhani Veronica Indriati Sri , Rahardjo Henky Poedjo
Published: August 2017

ABSTRAK Program  konversi reaktor TRIGA 2000 Bandung dari bahan bakar silinder menjadi bahan bakar pelat perlu perancangan sistem  pendingin reaktor yang baru. Perancangan sistem pendingin reaktor yang baru  tersebut diusahakan tidak banyak mengalami perubahan dari sistem pendingin reaktor yang telah ada, mengingat ruang dan tempatnya tidak mungkin diubah. Oleh karena itu perlu dilakukan analisis untuk memilih routing perpipaan sistem pendingin reaktor TRIGA pelat yang dapat memenuhi persyaratan pendinginan sistem yang sesuai dengan kondisi ruang dan tempat yang telah ada. Mengingat batasan ruang yang ada maka ada 4 (empat) kemungkinan bentuk routing yang bisa dirancang. Dari keempat kemungkinan routing tersebut kemudian dilakukan analisis waktu tempuh partikel N-16 yang memancarkan radiasi gamma (γ) dari teras ke permukaan tangki reaktor. Penelitian dilakukan dengan mengasumsikan rapat massa(ρ) fluida pendingin konstan (fluida inkompresibel), seluruh N-16 yang dihasilkan dalam teras reaktor terangkut ke permukaan tangki reaktor. Hasilnya menunjukkan bahwa routing alternatif 3 adalah yang paling optimum, karena waktu tempuhnya mendekati 5 (lima) kali waktu paruh N16 (36,7047 detik), sehingga aktivitasnya turun dari 100% menjadi 3%nya (A/A0 = 0,0317) dan panjang pipanya masih cukup untuk dimasukkan ke dalam ruang sistem pendingin reaktor yang tersedia. Kata kunci: Routing, perpipaan, aktivitas N-16, waktu paruh, reaktor TRIGA pelat.  ABSTRACT The conversion program in 2000 Bandung TRIGA reactor fuel from the cylinder into fuel plates needs a new reactor cooling system design. The design of the new reactor cooling system are devised in such away to not much changed from the existing reactor cooling system, regarding its space and location have no possibility to change. Therefore, pipe routing analysis is required to select the plate type TRIGA reactor cooling system, to meet the cooling requirements of the system, attempted to match with the existing space and location. According to the availability of the existing space, four (4) possibilities of pipe routing can be designed. From the four possibilities of pipe routing, then analyze the travel time of particles N-16, which emits gamma radiation from the core to the surface of the reactor tank. Analysis was performed by assuming a constant cooling fluid density (ρ) (incompressible fluid), the entire N-16 generated in the reactor core is transported to the surface of the reactor tank. The results show that the third alternative pipe routing is the most optimum, due to its approaching transport time is five (5) times the half-life of N-16 (36.7047 sec), so that its activities decreases from 100% to 3% (A/A0 = 0.0317) and the pipe length is still enough to put in the available space reactor cooling system. Keywords: Pipes, routing, N-16 activities, half-life , TRIGA reactor plate type.
IMPLEMENTATION OF MISSING VALUES HANDLING METHOD FOR EVALUATING THE SYSTEM/COMPONENT MAINTENANCE HISTORICAL DATA
Authors: Hartini Entin
Published: August 2017

Missing values are problems in data evaluation. Missing values analysis can resolve the problem of incomplete data that is not stored properly. The missing data can reduce the precision of calculation, since the amount of information is incomplete. The purpose of this study is to implement missing values handling method for systems/components maintenance historical data evaluation in RSG GAS. Statistical methods, such as listwise deletion and mean substitution, and machine learning (KNNI), were used to determine the missing data that correspond to the systems/components maintenance historical data. Mean substitution and KNNI methods were chosen since those methods do not require the formation of predictive models for each item which is experiencing missing data. Implementation of missing data analysis on systems/components maintenance data using KNNI method results in the smallest RMSE value. The result shows that KNNI method is the best method to handle missing value compared with listwise deletion or mean substitution.Keywords: missing value, data evaluation, alghorithm, implementation IMPLEMENTASI METODE PENANGANAN DATA HILANG  UNTUK MENGEVALUASI DATA SEJARAH PERAWATAN SISTEM/KOMPONEN. Data hilang merupakan masalah dalam melakukan evaluasi data. Analisis data hilang dapat menyelesaikan permasalahan ketidaklengkapan data yang tidak tersimpan dengan baik. Data yang hilang akan memperkecil presisi dari perhitungan, dikarenakan jumlah informasi yang tidak lengkap. Tujuan dari penelitian ini adalah implementasi  metode penanganan data hilang untuk evaluasi data sejarah perawatan sistem/komponen RSG GAS. Metodologi yang digunakan untuk menentukan data hilang yang berhubungan dengan data sejarah perawatan sistem/komponen adalah statistics, listwise deletion dan mean substitution, dan machine learning (KNNI). Metode mean substitution dan KNNI dipilih karena metode ini tidak memerlukan informasi untuk pembentukan model prediksi untuk setiap item yang mengandung data hilang. Implementasi analisis data hilang pada data perawatan sistem/komponen menggunakan metode KNNI menghasilkan nilai RMSE terkecil. Hasil ini menunjukan bahwa metode KNNI merupakan metode terbaik untuk menangani data hilang dibanding dengan listwise deletion atau mean substitution.Kata kunci: data hilang, evaluasi data, algoritma, implementasi
DESIGN ANALYSIS ON OPERATING PARAMETER OF OUTLET TEMPERATURE AND VOID FRACTION IN RDE STEAM GENERATOR
Authors: Dibyo Sukmanto , Irianto Ign. Djoko
Published: August 2017

HTGR is one of the next generation reactor types. HTGR is currently considered as one of the leading reactors for the future nuclear power plant. The steam generator is one of the main components in HTGR as well as in RDE.  In the steam generator, the heat is transferred by high temperature helium gas in the shell side to water in the tube side to generate the superheated steam. the purpose of this work is to design the operating parameter of outlet temperature and void fraction of steam based on feed water mass flow rate and inlet temperature variations in RDE steam generator. In this work, the Chemcad program was used. Both inlet and outlet temperature of helium gas have been set up as boundary conditions. The result shows that using the mass flow rate of 4.3 kg/s - 4.8 kg/s and water inlet temperature of 110 oC - 160 oC, the superheated steam outlet temperature (void fraction = 1.0) is obtained in the range of 275.5 oC – 600 oC.This analysis is beneficial to assess 10 MW RDE design especially in the steam generator system operating parameters.Keywords: outlet temperature, void fraction, superheated steam, RDE steam generator ANALISIS DESAIN PARAMETER OPERASI UNTUK TEMPERATUR KELUARAN DAN FRAKSI UAP PADA PEMBANGKIT UAP RDE. Reaktor daya HTGR adalah salah satu tipe reaktor generasi lanjut. HTGR saat ini merupakan desain reaktor yang dipertimbangkan untuk pembangkit listrik unggulan dimasa mendatang. Pembangkit uap merupakan salah satu komponen utama pada HTGR begitu pula pada RDE. Di dalam pembangkit uap, panas dari gas helium temperatur tinggi pada sisi shell di transfer ke air pada sisi tube pembangkit uap untuk menghasilkan uap lewat jenuh. Tujuan analisis ini adalah mendesain parameter operasi terhadap temperatur keluaran dan fraksi uap berdasarkan variasi laju alir massa air umpan dan temperatur masuk pada RDE. Dalam analisis digunakan program Chemcad, temperatur gas helium masuk dan keluar ditentukan sebagai kondisi batas. Hasil menunjukkan bahwa dengan menggunakan laju alir massa 4,3 kg/detik - 4,8 kg/detik dan temperatur masukan air umpan dari 110 oC -160 oC dapat diperoleh uap lewat jenuh (fraksi uap= 1,0) pada temperatur keluaran dalam rentang 275,5 oC - 600 oC. Analisis ini berguna untuk memberikan kajian desain RDE 10 MW khususnya parameter operasi sistem pembangkit uap.Kata-kata kunci: temperatur keluaran, fraksi uap, uap lewat jenuh, pembangkit uap RDE
CRITICALITY ANALYSIS OF URANIUM STORAGE FACILITY WITH FORMATION RACKS
Authors: Kuntjoro Sri
Published: August 2017

Uranium materials are needed for the uranium fuel production of research reactors and radioisotope. Before the uranium material is used, it is stored in the storage facility. One of the prerequisites for uranium material storage facilities is that it must be in the sub-critical condition. The purpose of this study is to analyze the criticality condition of uranium material storage facility located in PT. Inuki (Persero) and to ensure that the criticality condition is always in sub-critical state. Criticality analysis was performed using MCNP-5 program to determine the level of criticality of the three uranium material storage facilities at initial conditions and conditions after adding the storage racks. For analysing storage facilities 1 and 2, three scenarios of container on the storage rack formations were considered. Meanwhile, for analysing the storage facility 3, one scenario was considered. The results confirm that all strorages at initial condition and after adding storage racks formation were still in sub-critical condition (k-eff<1). These results are then used as the basis for the uranium materials management. It is also used as a basis for issuing an operational license by the nuclear energy regulatory body (BAPETEN).Keywords : criticality, uranium storage facility, k-eff ANALISIS KRITIKALITAS DI FASILITAS PENYIMPANAN BAHAN URANIUM DENGAN FORMASI PENGATURAN RAK. Bahan uranium dibutuhkan untuk produksi bahan bakar reaktor penelitian dan radioisotop. Bahan uranium sebelum digunakan terlebih dahulu disimpan pada fasilitas penyimpanan. Salah satu prasyarat fasilitas penyimpanan bahan uranium adalah fasilitas tersebut harus dalam kondisi sub-kritis. Bila kondisi kritis terjadi mengakibatkan proses fissi pada bahan uranium tidak terkendali, sehingga akan menimbulkan suhu yang sangat tinggi. Tujuan dari penelitian ini adalah untuk menganalisa kondisi kritikalitas dari fasilitas penyimpanan bahan uranium yang berada di PT. INUKI (Persero) untuk menjamin fasilitas tersebut dalam kondisi sub-kritis. Analisis kritikalitas dilakukan menggunakan program MCNP-5 untuk mengetahui tingkat kritikalitas dari tiga fasilitas penyimpanan bahan uranium untuk kondisi awal dan kondisi setelah ditambahkan rak penyimpanan. Untuk fasilitas penyimpanan 1 dan 2 dibuat tiga skenario pengaturan container pada rak penyimpanan, sedangkan pada fasilitas penyimpanan 3 dilakukan 1 skenario.  Hasil ini menunjukkan seluruh fasilitas penyimpanan pada kondisi awal dan setelah ditambah rak penyimpanan dalam kondisi sub-kritis (k-eff<1). Hasil tersebut selanjutnya dipergunakan sebagai dasar untuk menyusun manejemen pengelolaan bahan uranium. Selain itu juga digunakan sebagai dasar untuk pembuatan ijin dari badan pengawas (BAPETEN).Kata Kunci : kritikalitas, fasilitas penyimpanan berbahan uranium,  k-eff
PENGARUH PENGEROLAN PANAS TERHADAP KARAKTER PADUAN Zr-0,6Nb-0,5Fe-0,5Cr
Authors: Sungkono Sungkono , Aidah Siti
Published: August 2017

PENGARUH PENGEROLAN PANAS TERHADAP KARAKTER PADUAN Zr-0,6Nb-0,5Fe-0,5Cr. Paduan Zr-0,6Nb-0,5Fe-0,5Cr hasil pengerolan panas telah diteliti karakternya. Tujuan penelitian ini adalah mendapatkan data pengaruh pengerolan panas terhadap karakteristik mikrostruktur, kekerasan dan fasa yang terbentuk dalam paduan Zr-0,6Nb-0,5Fe-0,5Cr. Proses pengerolan panas  paduan Zr-0,6Nb-0,5Fe-0,5Cr dilakukan pada temperatur  800 oC dengan waktu penahanan (soaking time) 1,5 dan 2 jam dan reduksi ketebalan 5–25 %. Hasil penelitian menunjukkan bahwa paduan Zr-0,6Nb-0,5Fe-0,5Cr memiliki struktur Widmanstätten dengan evolusi mikrostruktur menjadi kolumnar terdeformasi dan batang pipih terdeformasi seiring dengan  semakin  besarnya reduksi ketebalan. Selain itu, semakin lama waktu penahanan pada temperatur  800 oC maka ukuran butir relatif lebih besar dan terjadi pembentukan fasa a-Zr dan Zr3Fe. Kekerasan paduan Zr-0,6Nb-0,5Fe-0,5Cr mempunyai kecenderungan yang sama yaitu semakin besar reduksi ketebalan maka semakin tinggi kekerasannya. Paduan Zr-0,6Nb-0,5Fe-0,5Cr  mampu menerima deformasi besar berupa pengerolan panas dengan reduksi ketebalan  25 % dan terbentuknya fasa a-Zr dan Zr3Fe dapat meningkatkan kekerasan dan kekuatan paduan Zr-0,6Nb-0,5Fe-0,5Cr.Kata kunci: Paduan, pengerolan panas, reduksi ketebalan, mikrostruktur, kekerasan, fasa. HOT ROLLING EFFECT ON THE CHARACTERS OF Zr-0.6Nb-0.5Fe-0.5Cr ALLOY. Characters of Zr-0.6Nb-0.5Fe-0.5Cr alloy after hot rolling have been studied. The objective of this research was to obtain of hot rolling effect on the characteristics of microstructures, hardness and phases formed in Zr-0.6Nb-0.5Fe-0.5Cr  alloy. The hot rolling process of alloy carried out at temperature of  800 oC with retention time of 1.5 and 2 hours and a thickness reduction between 5 to 25 %. The results of this experiment showed that the Zr-0.6Nb-0.5Fe-0.5Cr alloy has Widmanstatten structure with microstructure evolving into deformed columnar grains and deformed elongated grains with increasing thickness reduction. Besides, the longer the retention time at temperature of 800 oC is the larger are the grain structures and formation of a-Zr and Zr3Fe phase. The hardness of  Zr-0.6Nb-0.5Fe-0.5Cr alloy has same trends i.e the larger thickness reduction gives higher hardness. The Zr-0.6Nb-0.5Fe-0.5Cr alloy can under go hot rolling deformation at a thickness reduction of  25 %  and the formation of a-Zr and Zr3Fe can increased of hardness and strength of Zr-0.6 Nb-0.5 Fe-0.5 Cr alloy.Keywords: Alloy, hot rolling, thickness reduction, microstructure, hardness, phase.
ESTIMATION OF ROUTINE DISCHARGE OF RADIONUCLIDES ON POWER REACTOR EXPERIMENTAL RDE
Authors: Udiyani P.M. , Kuntjoro Sri
Published: August 2017

Experimental power reactor (RDE) which is planned to be constructed by BATAN is a kind of High Temperature Gas Cooled Reactor (HTGR) with 10 MWth power. HTGR is a helium gas-cooled reactor with TRISO-coated fuel that is able to confine fission products remained in the core. Although the fission products released into the environment are very small, in order to comply the regulations the study about environmental radiation on normal or routine operation condition need to be performed. Estimation of radiology in the environment involves the source term released into the environment under routine operation condition. The purpose of this study is to estimate the source term released into the environment based on postulation of normal or routine operations of RDE. The research approach starts with an assumption that there are defects and impurities in the TRISO fuel because of limitation during the fabrication. Mechanism of fission products release from the fuel to the environment was created based on the safety features design of RDE. Radionuclides inventories in the reactor were calculated using ORIGEN-2 whose library has been modified for HTGR type, and the assumptions of defects of the TRISO fuel and release fraction for each compartment of RDE safety system used a reference parameter. The results showed that the important source terms of RDE are group of noble gases (Kr and Xe), halogen (I), Sr, Cs, H-3, and Ag. Activities of RDE source terms for routine operations have no significant difference with the HTGR source terms with the same power.Keywords: routine discharge, radionuclide, source term, RDE, HTGR
ATIVIDADES FUNCIONAIS E NÍVEL DE DEPENDÊNCIA EM IDOSOS LONGEVOS RESIDENTES EM DOMICÍLIO
Authors: Pinto Daniela de Souza , Novais Marta Moreira , Prates Rahab Vieira , Bôas Sara Vilas , Araújo Claudinéia Matos de , Reis Luciana Araújo dos
Published: August 2017

Introdução: As alterações que ocorrem no organismo do indivíduo idoso com o avançar da idade tornam os mesmos mais propícios a desenvolverem dependência funcional. Objetivo: Avaliar as atividades funcionais e nível de dependência em idosos longevos residentes em domicílio. Métodos: Trata-se de um estudo analítico com delineamento transversal e abordagem quantitativa realizado com 117 idosos longevos do município de Jequié-BA. As variáveis analisadas foram: sociodemográficas (sexo, idade e escolaridade), condições de saúde (dor, doenças, atividades básicas e instrumentais de vida diária) e desempenho motor (teste de equilíbrio, flexibilidade/mobilidade, sentar e levantar e caminhada), o projeto foi aprovado pelo Comitê de Ética em Pesquisa (CAAE nº 16450513.6.0000.0055). Aplicou-se análise estatística descritiva e o Teste de Kruskal-Wallis, sendo adotado um p-valor <0,005. Resultados: Verificou-se diferença estatística significativa entre as variáveis equilíbrio, atividades básicas de vida diária (p=0,001) e atividades instrumentais de vida diária (p=0,001); e entre o teste sentar/levantar com AIVD (p=0,024). Conclusão: Pode-se concluir que o comprometimento das atividades básicas e instrumentais de vida diária influencia no comprometimento do equilíbrio.
Genotypic HIV coreceptor tropism assay v1
Authors: Zazzi Maurizio
Published: August 2017

The assay is intended to amplify and sequence the HIV-1 gp120 V3 domain and infer if the virus can use the CXCR4 coreceptor for cell entry. The use of this coreceptor renders the virus not susceptible to the CCR5 coreceptor antagonist maraviroc.
Európai járműipari térségek gazdasági kormányzási modelljei
Authors: Fekete Dávid
Published: August 2017

A regionális politika fejlődési szakaszaiban a klasszikus (modern) megközelítést a posztmodern váltotta fel. A klasszikus időszakban alkalmazott állami módszereket a merevség, a központi szabályozás, a piac közvetett szabályozása jellemezte (fordista szemlélet), ezzel szemben a posztmodern időszakban inkább a rugalmasság, a decentralizáció és a közvetlen piacszabályozás került előtérbe (posztfordizmus). A modern időszak gazdaságfejlesztése kínálatorientált politikaként fogható fel, ahol főleg a hard infrastruktúra építése, a felülről jövő (top-down) megközelítés jellemző, a gazdaság szereplői a kedvezményezettek. Napjaink posztmodern időszakának gazdasági kormányzása ugyanakkor inkább keresletorientált, a soft befektetésekre is nagyobb figyelmet fordít, teret enged az alulról jövő kezdeményezéseknek, s hálózatos együttműködéseket alakít ki a gazdasági, felsőoktatási, kutatás-fejlesztési, gazdasági intézmények és szervezetek között.A tanulmány összefoglalja annak a kutatásnak a legfontosabb eredményeit, mely kilenc európai ország 19 járműipari központjában tárta fel a térségi együttműködési és pályaorientációs modelleket. Az érintett településeken a járműiparban érdekelt szereplők között különböző szintű és szervezettségű együttműködéseket találtunk. Ezen együttműködések az alábbi kategóriákba sorolhatók: 1. (ön)kormányzati és vállalati szereplők együttműködése a gazdaságfejlesztés területén, 2. vállalati és felsőoktatási szereplők együttműködése a kutatás-fejlesztés területén, 3. együttműködések a szakképzés területén, 4. multilaterális, nagy számú érintettet tömörítő együttműködési rendszerek. Ezeket a csoportokat a tanulmány részletesen kibontja.
A fejlettség területi különbségeinek változása Magyarországon, 1910–2011
Authors: Győri Róbert , Mikle György
Published: August 2017

A kvantitatív módszerekre épülő kutatásunkban arra tettünk kísérletet, hogy Magyarország fejlettségi térszerkezetének 1910 és 2011 közötti átalakulását feltárjuk. Annak érdekében, hogy a hosszú és középtávú változások egyaránt mérhetők legyenek, négy időkeresztmetszetet választottunk ki (1910, 1970, 2001, 2011). Az összehasonlítást az teszi lehetővé, hogy a települési szinten gyűjtött mutatókat mind a négy időpontra a mai járáshatárok között aggregáltuk. A vizsgálat a fejlettségi különbségek stabilitására mutatott rá: az Osztrák–Magyar Monarchia korának, a szocializmus időszakának és a rendszerváltás utáni évtizedeknek a fejlettségi térképei nagyban hasonlítanak egymásra. Az ország nyugat–kelet tagozódása, a centrum-periféria jellegzetességek, a fejlett és fejletlen térségek markáns elkülönülése tartós jegyei a magyar fejlettségi términtázatnak. A fejlettségi térszerkezetre alapvetően jellemző stabilitást a felfelé és lefelé mozgó járások szűkebb csoportja töri csak meg. Száz év alatt jelentősen javították helyzetüket az idegenforgalomba, a fürdőturizmusba bekapcsolódó térségek, a fővárosi agglomeráció külső övezetében elhelyezkedő járások, a Délnyugat-Dunántúl járásai és egy-két ma is sikeres szocialista iparváros járása. Ugyanakkor a Tiszántúl középső része és Észak-Magyarország sok járása a múlt századelőhöz képest a hanyatlás jegyeit mutatja.
Introducing New Guidelines on Sudden Unexpected Death in Epilepsy
Authors: Harden Cynthia L ,   Department of Neurology, Mount Sinai Health System, New York, NY, US
Published: August 2017

Cynthia L Harden, MD, received her medical degree at the University of Wisconsin. She trained in internal medicine at Mount Sinai St Luke’s Hospital and neurology at Mount Sinai Hospital, both in New York City, and in clinical neurophysiology at Albert Einstein College of Medicine in the Bronx. She served most of her career at Weill Cornell College of Medicine, where she became Professor of Neurology. Dr Harden serves as Chair of the Guideline Development, Dissemination and Implementation Subcommittee of the American Academy of Neurology (AAN). In 2016, she was also elected Chair of AAN’s Epilepsy Section for a 2-year term.
Exercise as Medicine in Multiple Sclerosis—Moving Beyond Compensatory Benefits
Authors: Zackowski Kathleen M ,   Senior Director, Patient Management, Care and Rehabilitation Research, National Multiple Sclerosis Society, New York, NY, US
Published: August 2017

Many studies have shown that physical exercise improves multiple sclerosis (MS) symptoms, including cognition, fatigue, bowel and bladder function, depression, and overall quality of life. However, the pathophysiologic mechanisms responsible for these symptomatic changes remain elusive. Exercise offers a likely path for addressing progressive MS, nervous system repair, and as a wellness approach for people with MS. We as a community need to work toward gaining information to establish an evidence-based exercise prescription for people living with MS.
Risk Factors for Psychosis in Parkinson’s Disease
Authors: Barrett Matthew J ,   University of Virginia, Department of Neurology, Charlottesville, VA, US
Published: August 2017

Psychosis is a characteristic neuropsychiatric symptom of Parkinson’s disease (PD) that is common and associated with worse outcomes. The purpose of this article is to review identified risk factors for visual hallucinations in PD, the most common manifestation of psychosis. With the possible exception of dopamine agonists, antiparkinsonian medications are only considered modifiers of psychosis in PD. Dementia in PD has consistently been shown to be associated with psychosis, and executive dysfunction and impairment in visual processing appear to play a role in its pathogenesis. The association of psychosis with disorders of sleep–wake dysregulation and autonomic dysfunction supports the involvement of brainstem dysfunction in PD psychosis. Despite many studies evaluating genetic risk factors for hallucinations, GBA mutations are the only variants consistently reported to be associated with an increased risk of hallucinations in PD. Lastly, psychosis in PD is associated with a more severe disease burden, both related and unrelated to PD pathology. Any explanatory model of psychosis in PD must incorporate pharmacological, neuroanatomic, pathological, and genetic factors before there can be a complete understanding of this common and disabling neuropsychiatric symptom.
A Review of Vascular Disease Risk Factors and Multiple Sclerosis
Authors: Kannan Meena R ,   Portland Veterans Affairs Medical Center and Oregon Health Sciences University, Portland, OR, US, Yadav Vijayshree ,   Portland Veterans Affairs Medical Center and Oregon Health Sciences University, Portland, OR, US
Published: August 2017

Multiple sclerosis (MS) is the most common demyelinating disease of the central nervous system and the most common non-traumatic cause of disability in young adults. Recent research shows that vascular disease risk factors (VDRFs) such as obesity, smoking, hyperlipidemia, hypertension, type II diabetes mellitus, and metabolic syndrome, can influence MS on its onset, disease activity, progression, and resultant disability. This review evaluates the current knowledge on the role of VDRFs on outcomes among people with MS (PwMS) and shows that while VDRF prevalence may or may not be higher among PwMS compared with the general population, its presence can influence MS in myriad ways. Management of VDRFs through early detection and treatment may be a promising approach to improving outcomes in PwMS.
Delayed Appearance of Conduction Block in Multifocal Motor Neuropathy—A Case Report
Authors: Darki Leila ,   Neuromuscular Division, Keck School of Medicine, University of Southern California, Los Angeles, CA, US, Beydoun Said R ,   Neuromuscular Division, Keck School of Medicine, University of Southern California, Los Angeles, CA, US
Published: August 2017

Neuromuscular Division, Keck School of Medicine, University of Southern California, Los Angeles, CA, US
Periodismo mutante y bastardo
Authors: Rincón Omar G.
Published: August 2017

The 20th century ended in 2016. Fidel Castro died in politics. And the journalism could not tell the reality. The great ruin of journalism is that it has stopped narrating democracy, making sense of our times, telling the realities of ordinary people, controlling power. Thus, the journalistic office is an endangered species in the mainstream media that have decided to become political actors that lobby for business interests and have turned information into sensationalism or show business. By doing so, we have reached a world where the value of journalistic information is low and media legitimacy and credibility is ruined. This essay argues that it is necessary and urgent to re-invent journalism and raise some glimpses of where to do it.
Construção da profissionalidade de jovens trabalhadores na cultura do imediatismo
Authors: Lautert Keli Cristina , Silva Sinara Leote
Published: August 2017

Com este estudo, pretende-se compreender como as juventudes deste século constroem sua profissionalidade e como vão dando sentido às suas existências em um mundo no qual o trabalho desempenha um papel central na constituição das subjetividades. A construção da profissionalidade que é apresentada neste estudo diz respeito ao trabalho formal exercido em corporações empresariais e está associada às carreiras profissionais das juventudes que têm acesso à educação superior. O texto possui como referência revisão bibliográfica e resultados de entrevistas, as quais foram realizadas com alguns jovens trabalhadores e com gestores que lideram jovens e participaram de estudo apresentado em dissertação de mestrado sob mesmo título deste artigo.
Girl on girl: questões de gênero em Y: o último homem
Authors: Dos Santos Paloma Nascimento
Published: August 2017

Quando um jovem desempregado e recém-formado se dá conta de que ele e seu macaco de estimação são os únicos seres do sexo masculino na Terra se inicia a narrativa da graphic novel Y: O Último Homem, de Brian K. Vaughan e Pia Guerra. Este cenário pós-apocalíptico serve como ponto de partida para analisar a representação e as relações de gênero presentes nas histórias em quadrinhos, temática que vem ganhando destaque na atualidade. A graphic novel serviu como corpus para se discutir a impossibilidade de uma narrativa única no que diz respeito às mulheres e suas identidades como personagens. Para isso, serão utilizadas as perspectivas de gênero a partir de Joan Scott e Judith Butler e as discussões sobre gênero e raça de bell hooks.
Проектное финансирование на базе государственно-частного партнерства: аудит эффективности, критерии эффективности
Authors: Макаров Иван Николаевич , Соколов Владимир Прохорович , Спесивцев Валерий Анатольевич
Published: August 2017

Данная работа является продолжением наших исследований, посвященных проблематике анализа, оценки и аудита эффективности проектного финансирования в смешанных государственно-частных проектах и акцентирует внимание на проблематике выработки отраслевых критериев эффективности данных проектов и необходимости их периодического пересмотра в связи с изменениями технологии в отраслях и социально-экономических реалий в стране.
Оценка влияния природно-ориентированного туризма в развитие Астраханской области
Authors: Конаныхина Ольга Владимировна
Published: August 2017

Влияние туризма на экономическое развитие любого территориального образования, в том числе и Астраханской области – это результат доходов туристской сферы, связанных с покупкой туристских товаров и услуг. Прямое влияние определяется в виде результата вложения денег туристами в туристские организации, материальное обеспечение работников туристской сферы и создание новых рабочих мест. Средства, потраченные туристами в месте пребывания, образуют доход, который приводит к непрерывной цепочке: расходы - доходы - расходы - доходы и т.д. с получением синергетических эффектов. Оценку влияния туризма на развитие территории, возможно осуществить посредством расчета показателей синергизма по таким направлениям, как синергизм дохода, синергизм выпуска и продаж и синергизм занятости, формирующих общий синергизм коммерческих операций рассматриваемой территории.
Reflexões sobre o comportamento ecologicamente correto do consumidor capixaba
Authors: Hemerly Leandro de Athayde , D’Angelo Marcia Juliana
Published: August 2017

Os problemas ambientais têm gerado novas oportunidade de negócios para as organizações, como a preocupação com a consciência ecológica e com o comportamento dos consumidores, que estão mais atentos às questões ambientais e sociais e às suas consequências. Assim, neste estudo quantitativo, a partir de um questionário adaptado da escala de Comportamento do Consumidor Ecologicamente Consciente (Ecologically Conscious Consumer Behavior) (ECCB)), de Straughan e Roberts (1999) e Lages e Vargas Neto (2002), teve-se como objetivo discutir os fatores que podem influenciar a consciência ecológica dos consumidores capixabas no momento em que estão realizando suas compras. Os principais resultados mostram que o novo modelo mental dos consumidores capixabas tem implicado a adoção de um comportamento verde somente para alguns hábitos. E quanto maior a escolaridade e a idade, maior a consciência ecológica dos consumidores. Já a renda não impacta tal comportamento, o que é bom para o Estado do Espírito Santo, que tem disparidades sociais e econômicas.Palavras-chave: Consumo ecologicamente correto. Marketing verde. Legislação. Abstract Environmental problems have generated new business opportunities for organizations, such as concern for ecological awareness and consumer behaviour, which are more conscious to environmental and social issues, and its consequences. Thus, this quantitative study, from the  questionnaire of Ecologically Conscious Consumer Behavior of Straughan and Roberts (1999) and Lages and Vargas Neto (2002), aims to discuss the factors that may influence the ecological consciousness of consumers in the State of Espírito Santo when they are shopping. Findings show that consumers’ new mental model of this region has implied in adopting a green behavior only for some habits. In addition, the greater the education degree and age, the greater the ecological awareness of consumers. Income does not affect such behavior, which is good for the State of Espírito Santo, which has social and economic disparities.Keywords: Ecologically conscious consumer. Green marketing. Legislation.
Fatores de resistência à implantação do sistema de conhecimento de transporte eletrônico (CT-e) em duas grandes transportadoras rodoviárias de cargas
Authors: Bianchet Taís Daiane Assumpção , Wernke Rodney
Published: August 2017

Resumo Neste estudo teve-se por objetivo identificar quais os principais fatores de resistência estavam presentes no processo de implantação do Conhecimento de Transporte Eletrônico (CT-e) em duas grandes empresas de transportes de cargas da região de Chapecó, SC. A pesquisa classifica-se como qualitativa em relação ao problema e como descritiva quanto aos objetivos, empregando na coleta de dados um questionário padronizado aplicado aos administradores e contadores das duas transportadoras. Foi investigado sobre seis possíveis categorias de fatores de resistência na implementação do CT-e: poder institucional, insegurança ontológica, confiança, inércia, falta de conhecimento e aceitação de rotinas. As respostas coligidas demonstraram que dos fatores analisados somente o aspecto relacionado ao poder institucional não foi identificado como presente nas duas empresas por ocasião da adoção do CT-e e que houve maior resistência no âmbito administrativo, se comparado ao setor contábil dessas companhias. Como limitações, cabe apontar o fato de ter suas conclusões circunscritas à realidade das duas transportadoras e de abranger somente seis tipos de fatores de resistência.Palavras-chave: Fatores de resistência. Conhecimento de Transporte Eletrônico (CT-e). Transportadora rodoviária de cargas. Abstract The study aimed to identify what are the main resistant factors to the implementation of the Electronic Bill of Lading system (BL-e) in two big highway cargo shipping companies in the region of Chapecó, SC. The research can be classified as qualitative in relation to the problem and as descriptive in relation to the objectives, employing in the data collection a standard quiz applied to the administrators and accountants of two shipping companies. It was investigated about six possible categories of resistant factors to the implementation of the BL-e: institutional power, ontological insecurity, confidence, inertia, lack of knowledge, and acceptance of routines. The collected answers showed that from the analyzed factors only the aspects related to the institutional power were not identified as present in the two companies by occasion of adoption of BL-e that there was a great resistance in the administrative scope, if compared to the accounting sector of these companies. As limitations, it is worth pointing the fact of having their conclusions limited to the reality of the two shipping companies and including only six types of resistance factors. Keywords: Resistance factors. Electronic Bill of Lading system (BL-e). Highway cargo shipping.
Editorial
Authors: Oro Ieda Margarete
Published: August 2017

Caros leitores da RACE, é com satisfação que apresentamos o editorial da segunda edição de 2017. Esta edição v. 16, n. 2, de maio/ago. tem 15 artigos originais. A Revista de Administração, Contabilidade e Economia (RACE), publicação eletrônica quadrimestral, está sob responsabilidade do Mestrado Profissional em Administração e do Curso de Doutorado em Administração da Universidade do Oeste de Santa Catarina [...]
Sumário
Authors: Diersmann Admin Débora
Published: August 2017

Sumário