bluuebunny/crossref_metadata_2025_split huggingface dataset:
A 500 Watts Single Stage Single Switch Soft Switched CCM PFC Flyback Converter with BCM Control
Authors: Mannam Rayudu , Gorantla Srinivasa Rao , Vangala Nagesh 
Published: April 2019

Single stage isolated AC to DC converters find prominence due to simplicity and efficiency in addition to economics. Boundary control Mode BCM Flyback converters are widely used for such applications up to power levels of 200 watts. For higher power levels, average current control mode PFCs are used and two stage conversion is incorporated. In this paper, a novel technique for building a single stage PFC with a Continuous Conduction Mode CCM Flyback AC DC converter is proposed for 500 watts power. A practicalsingle stage converter is built with power factor correction and input output isolation. The unique feature of the new configuration lies in having only one primary MOSFET switch and adapting BCM control in a CCM Flyback configuration and achieving ZVS and ZCS while in CCM operation. Proposed configuration is best suited for battery charger applications. Also, the absence of high voltage bulk capacitor at the mains input adds lot of advantages in terms of eliminating inrush current and saving PCB area. A working model of 130 V Dc output and 4.0A is built and the test data are presented depicting the complete soft switching of all power devices and exhibiting the efficiencies in excess of 95%.
Control Strategy of Photovoltaic System to Regulate Active and Reactive Power during Unbalanced Grid Voltages by Using Fuzzy Logic Control
Authors: Trilokya Gujjala , Reddy M.Rama sekhara 
Published: April 2019

The advanced reactive power regulation is planned to direct the highest and the voltages at least point of regular pairing inside the cutoff points set up in grid codes for consistent operation. These work displays a regulating technique to which the grid associated PV system meaning to direct the power of both active and reactive infused to the electrical system amid the voltage faults that are uneven in nature. Fuzzy controller is propel controller which is for the most part appropriate for the personal fundamental guidance tool. which additionally gave the electronic system operation by the master choice. The reference of active power is acquired from a Maximum Power Point Tracking (MPPT) calculation. The advanced force methodology creates the necessary reference currents that forced by the grid-tied inverter from the coveted P and Q powers and the deliberate voltage supply. In unequal voltage sags, positive and negative sequence KVAr are consolidated to adaptable boost and even out the phase voltages; maximum phase voltage is controlled below as far as possible and the base phase voltage simply over as far as possible. The plan is approved to a solitary step PV system where the currents that are regulated by means of prescient control. By using the fuzzy controller for a nonlinear system which permit the decrease for the questionable impact in the system which control and impeccably enhance the effectiveness. Results demonstrating the execution of the procedure are introduced amid uneven sags and swells.
Ukraine Unified Transport System Potential and Its Development Management Effectiveness Integral Assessment
Authors: Olha Komelina , Viktor Dubishchev , Mykola Lysenko , Nataliia Panasenko 
Published: April 2019

Transport system is an important constituent of country’s economy. This system development is a significant factor ensuring population standard of living. Research in the field of unified transport system of Ukraine development estimates reveals its condition as not sufficient to meet modern requirements. Among the problems which are to be first of all solved to improve transport system of Ukraine operation estimates, an important place belongs to the issues of industry management information and analytical provision: lack of data collecting and processing effective system, methodology for objective condition assessment and prospective of the industry development, systematic approach to development coordination and long-term panning of all modes of transport operation, criteria and indices for quality estimation in providing transportation services. Solving these problems is impossible without significant improving the country’s unified transport system management. Transport infrastructure in Ukraine requires considerable systemic changes, oriented to logistics which will provide integration effect, reduce costs and improve service quality. Methodology for the national economy transport system development integral estimation was developed based on the modern information base including approach to determining peculiarities of forming transport system of Ukraine potential and its development management effectiveness under global challenges. The developed methodical approach can be efficiently used for analyses, control, accounting, planning, forecasting and regulating the industry activity at the national and regional levels and the level of separate country’s transport subsystems. Suggested approach can be used for evaluating efficiency of transport system development innovative and investment projects, and is the basis for defining market transformation vectors considering its socially optimal development level as well as regarding innovative and investment projects financing.
Design of Experiment for In-Situ Synthesis of Waste Vegetable Oils and Synthetic Based Polyurethane (PU) Foam Composites
Authors: Abd Wahab Hanani , Zafiah Mohd Rus Anika , Taufiq Zaliran M. 
Published: April 2019

This study focused on fabrication of polyurethane (PU) foams and its composites based on hydroxylated bioepoxy (B) and petroleum based synthetic epoxy (E), crosslinker and wood fillers. The fabrication of foams: B and E with different wood filler size such as flake (L) and powder (P) on different composition ratios of 5%, 10%, 15% and 20%. The fabrication techniques used in this research are open moulding technique. The physical properties such as morphological pore structure and its homogeneity of wood filler distribution in foam polymer composites were measured. The effect of different size of wood filler loading in PU foam composites were analyzed and discussed in detail such as gelling time, main pore size, interconnected pore and struts thickness. The operatory conditions of in-situ PU foams synthesis were optimized using a design of experiment (DOE). The correlations between factors (X1, X2, X3) and the responses (Y1, Y2, Y3, Y4) for B, E as well as BL, BF, EL or EF foams were further analyzed using Minitab software.
A Review on Hybrid Magnetorheological Isolator
Authors: Firdaus Jaafar Mohd , Iqmal Mohd Razali Zarul , Amirani Ahmad Nur 
Published: April 2019

Hybrid magnetorheological elastomer-fluid (MRE-F) isolator is a device used to bridge the limitations impose from the magnetorheological elastomer (MRE) or magnetorheological fluid (MRF) alone. MRE is known to perform better in terms of isolating vibration by stiffness changes (it’s a stiffness dominant device) where as MRF is known to have problem with sedimentation of magnetizable particles due to gravity. A composite of MRE and MRF will bring the benefit of both domains into a single isolator device. Magnetorheological properties from hybrid MRE-F can be further improve by examining the various factors affecting the overall performance of the hybrid isolator.
Design & Simulation Of 64-Bit Hybrid Processor Instruction Set Using Verilog
Authors: M S Harish M S , D Jayadevappa 
Published: April 2019

As a part of my ongoing research on implementation of multi core hybrid processor on FPGA, I have developed data flow designs for most popularly used 20 processor instructions. I have made digital design, wrote code in Verilog HDL and simulated all the 20 instructions using Xilinx ISE 14.5. The data flow designs, symbolic representation and simulation results are explained in detail in this technical paper. This is partial implementation of Hybrid Processor & the other sub modules implementation on Xilinx FPGA will be published in my subsequent technical paper.
Measurement Radon Gas Concentration in Selected Soil Samples of The of Al-Nada District in Najaf
Authors: Fadel Kadim Shahad , Najy Hady Heiyam 
Published: April 2019

In this study fifty (50) of soil samples of AL-Nada district-Najaf Governorate –Iraq have been collected randomly and studied using solid state nuclear track detectors (CR-39) to determined 226Ra through counting the number of radon tracks by using CR-39 plastic nuclear track detector ,a long- term measurement technique has been considered using special tube of mean (2.5cm) diameter .The detector was placed at (5cm) height and irradiated for 90 days. The chemical etching performed by using (NaOH) solution of 6.25 normality at etching temperature (70C°)for etching period of (7 hrs ).Concentration of radon 222Rn has ranged from (171.237±0.0062) Bq/m3 to (31.982±0.0027) Bq/m3with average value (99.222±0.2476) Bq/m3 while the specific activityof radon has been ranged from (0.471±1.794) Bq/kg to (0.090±7.682) Bq/kg with average value (0.277 1.320)Bq/kgThe results were found to be comparable or lower than similar global reporting data. Accordingly, this area of soil can be considered to have normal levels of natural background radiation.
Shadowing for Nonautonomous Dynamics
Authors: Backes Lucas , Dragičević Davor 
Published: April 2019

Abstract
We prove that whenever a sequence of bounded operators

(

A
m

)

m
∈
ℤ

{(A_{m})_{m\in\mathbb{Z}}}

acting on a Banach space X admits an exponential dichotomy and a sequence of differentiable maps

f
m

:

X
→
X

{f_{m}\colon X\to X}

,

m
∈
ℤ

{m\in\mathbb{Z}}

, has bounded and Hölder derivatives, the nonautonomous dynamics given by

x

m
+
1

=

A
m

⁢

x
m

+

f
m

⁢

(

x
m

)

{x_{m+1}=A_{m}x_{m}+f_{m}(x_{m})}

,

m
∈
ℤ

{m\in\mathbb{Z}}

, has various shadowing properties. Hence, we extend recent results of Bernardes Jr. et al. in several directions. As a nontrivial application of our results, we give a new proof of the nonautonomous Grobman–Hartman theorem.
Novel Manchester-Based Multilevel Signaling for High-Speed Optical Communication Systems
Authors: Oluwajobi Festus Idowu , Dong-Nhat Nguyen , Malekmohammadi Amin 
Published: April 2019

Abstract
In this paper, the performance of a novel multilevel signaling based on Manchester code namely four-level Manchester Coding (4-MC) technique is investigated for next generation high-speed optical fiber communication links. The performance of 4-MC is studied and compared with conventional Manchester modulation and four-level pulse amplitude modulation (4-PAM) formats in terms of receiver sensitivity, spectral efficiency and dispersion tolerance at the bit rate of 40 Gb/s. The bit error rate (BER) calculation model for the proposed multilevel scheme has also been developed. The calculated receiver sensitivity and the chromatic dispersion tolerance at the BER of 10–9 of the proposed scheme are −22 dBm and 67.5 ps/nm, respectively. It is observed that, 4-MC scheme is superior in comparison to 4-PAM by 3.5 dB in terms of receiver sensitivity in back-to-back scenario. Therefore, the proposed scheme can be considered as an alternative to current 4-PAM system.
RSVP-TE Bilateral-Recursive Region Re-Routing Crankback Mechanism for Large-Scale Optical Networks
Authors: Qin Panke , Wang Jiawei , Wu Jingru 
Published: April 2019

Abstract
Cloud computing services and real-time Internet applications have spawned a large variety of potential requirements for quality of service (QoS), especially the latency and connection setup time. However, with the optical networks develop toward to larger scale, wider coverage and more users access, conventional resource reservation protocol traffic engineering (RSVP-TE) signal hop by hop transmission scheme cannot meet the requirements of these new applications for real-time dynamic services and fast restoration with long propagation delays. This paper proposes a novel RSVP-TE bilateral-recursive region re-routing crankback mechanism (BRCB) base on distributed path computation element (PCE) for generalized multiprotocol label switching (GMPLS) optical networks. In this mechanism, the backtracking nodes re-route and update the region routing paths which bypass the crankback and re-routing failure nodes when crankback occurs. It not only reduces the influencing factors of the scale of network, signaling crankback position and frequency to path connection setup time, but also avoids the backtracking of teardown messages.
Profitability of rice production in different production systems in Ebonyi State, Nigeria
Authors: Chidiebere-Mark Nneka , Ohajianya Donatus , Obasi Polycarp , Onyeagocha Steve 
Published: April 2019

Abstract
Profitability of rice production in different production systems in Ebonyi State, Nigeria was evaluated. Rice is critical for food security in Nigeria, hence, farmers need to make appropriate choices of rice production systems to optimize production and ensure an adequate domestic supply. This study used 2015 survey data from rice farming households. Rice farmers in swamp, lowland and upland rice production systems showed variability in profit. Swamp production systems had the highest return per hectare (29.37%) followed by lowland production systems (20.10%) and upland production systems (13.03%). Poor access to production credit and climate change were constraints to rice production in the area. Rice production using the swamp production system is profitable and would ensure increased production and higher returns to the farmers. It is recommended that farmers should form cooperative groups to enable them to pool resources together to boost their production.
Effect of Concurrent Power Training and High-Intensity Interval Cycling on Muscle Morphology and Performance
Authors: Spiliopoulou Polyxeni , Zaras Nikolaos , Methenitis Spyridon , Papadimas Georgios , Papadopoulos Constantinos , Bogdanis Gregory C. , Terzis Gerasimos 
Published: April 2019

Abstract
Spiliopoulou, P, Zaras, N, Methenitis, S, Papadimas, G, Papadopoulos, C, Bogdanis, GC, and Terzis, G. Effect of concurrent power training and high-intensity interval cycling on muscle morphology and performance. J Strength Cond Res 35(9): 2464–2471, 2021—The aim of the study was to examine the effect of performing high-intensity interval cycling on muscle morphology and performance immediately after power training (PT). Twenty healthy female physical education students were assigned into 2 training groups. One group performed PT, and the other group performed the same PT followed by high-intensity interval aerobic training on a cycle ergometer (PTC). Training was performed 3 days per week for 6 weeks. Countermovement jump (CMJ) height and CMJ power, half-squat maximal strength (1 repetition maximum), maximum aerobic power, vastus lateralis muscle fiber composition, and cross-sectional area (CSA) were evaluated before and after the intervention. Countermovement jump height increased after PT (10.1 ± 6.6%, p = 0.002) but not after PTC (−5.1 ± 10.5%, p = 0.099), with significant difference between groups (p = 0.001). Countermovement jump power increased after PT (4.5 ± 4.9%, p = 0.021) but not after PTC (−2.4 ± 6.4, p = 0.278), with significant difference between groups (p = 0.017). One repetition maximum increased similarly in both groups. Muscle fiber composition was not altered after either PT or PTC. Vastus lateralis muscle fiber CSA increased significantly and similarly after both PT (I: 16.9 ± 16.2%, p = 0.035, ΙΙΑ: 12.7 ± 10.9%, p = 0.008,ΙΙΧ: 15.5 ± 17.1%, p = 0.021) and PTC (Ι: 18.0 ± 23.7%, p = 0.033,ΙΙΑ: 18.2 ± 11.4%, p = 0.001,ΙΙΧ: 25.5 ± 19.6%, p = 0.003). These results suggest that the addition of high-intensity interval cycling to PT inhibits the anticipated increase in jumping performance induced by PT per se. This inhibition is not explained by changes in muscle fiber type composition or vastus lateralis muscle fiber CSA adaptations.
Analisis Perkembangan Titer Antibodi Hasil Vaksinasi Infectious Bronchitis pada Ayam Petelur Strain Hisex Brown
Authors: Wulandari K. E Yenni Tyas , Susanti R. , Bintari Siti Harnina 
Published: April 2019

Infectious bronchitis (IB) is a disease that attacks the chicken's respiratory system caused by an infectious bronchitis virus. IB transmission can occur directly and indirectly. IB disease transmission can be done by vaccination. Vaccination can fail so that to determine the success of the vaccination program an antibody titer monitor is performed using serological tests. ELISA is one of the serological tests that can be used to measure antigens/antibodies. The main principle of the ELISA technique is the use of enzyme indicators for immunological reactions. This study aims to analyze the differences in chicken antibody titers at certain periods after vaccination. The sample in this study used 18 female layer hens of Hisex Brown Strain aged 20 weeks that were vaccinated by IB. This study was an experimental study with treatment of antibody titer measurements at 7, 14, and 21 days after vaccination. Data analysis is descriptive quantitative using the Normality test and t test. The mean results of antibody titers at each consecutive time period at 7, 14, and 21 days after vaccination were 1695, 4207, and 5978. The results of the t test showed that at each sampling period 7 dpi, 14 dpi and 21 dpi had differences significant. The number of titers of IgG antibodies to the IBV virus increases from a distance after vaccination. Conclusions were obtained that antibodies increased in each period of time taken after vaccination.

Penyakit Infectious bronchitis (IB) adalah penyakit yang menyerang sistem pernafasan ayam yang disebabkan oleh Infectious bronchitis virus. Penularan IB dapat terjadi secara langsung dan tidak langsung. Penularan penyakit IB dapat dilakukan dengan cara vaksinasi. Vaksinasi dapat mengalami kegagalan sehingga untuk mengetahui keberhasilan program vaksinasi dilakukan monitor titer antibodi menggunakan uji serologis. ELISA adalah salah satu uji serologis yang dapat digunakan untuk mengukur antigen/antibodi. Prinsip utama teknik ELISA adalah penggunaan indikator enzim untuk reaksi imunologi. Penelitian ini bertujuan menganalisis adanya perbedaan titer antibodi ayam pada periode tertentu setelah vaksinasi. Sampel pada penelitian ini menggunakan 18 ekor ayam petelur betina Strain Hisex Brown umur 20 minggu yang divaksin IB. Penelitian ini merupakan penelitian eksperimental dengan perlakuan pengukuran titer antibodi pada 7, 14, dan 21 hari setelah vaksinasi. Analisis data secara deskriptif kuantitatif menggunakan uji Normalitas dan uji t. Rerata hasil titer antibodi pada setiap periode waktu berturut-turut pada 7, 14, dan 21 hari setelah vaksinasi yaitu 1695, 4207, dan 5978. Hasil uji t menunjukkan pada setiap periode pengambilan sampel yaitu 7 dpi, 14 dpi, dan 21 dpi mempunyai perbedaan yang signifikan. Jumlah titer antibodi IgG terhadap virus IBV semakin meningkat dari jarak setelah vaksinasi. Kesimpulan yang diperoleh bahwa antibodi mengalami peningkatan pada setiap periode waktu pengambilan setelah vaksinasi.
PELATIHAN PEMBUATAN BUKU AJAR BERBASIS LIMBAH DI GUGUS LARASATI GUNUNGPATI SEMARANG
Authors: Samadhy Umar , Jaino Jaino , Mujiyono Mujiyono 
Published: April 2019

Pengabdian kepada masyarakat ini bertujuan secara umum untuk memberikan pelatihan mengelola limbah kertas koran, majalah, dan buku ajar lama, menjadi sebuah bahan ajar baru dengan teknik montase. Keterampilan yang akan didapatkan oleh guru adalah memadukan dan membuat bahan ajar dengan teknik montase. Teknik montase merupakan penggunaan dan pemanfaatan gambar jadi (bersumber dari limbah) yang dikomposisikan dengan media gambar (pewarna), ditempelkan di atas kertas, dan diberikan keterangan atau materi ajar yang disesuaikan dengan pembelajaran di sekolah dasar. Target khusus yang ingin dicapai, menghasilkan guru yang berbakat dan terampil menghasilkan buku ajar dengan mengelola limbah kertas. Dengan pengelolaan limbah kertas dengan baik, menekan elemen perusak bumi, sebagai wujud konservasi dan peduli lingkungan yang diprogramkan oleh Universitas Negeri Semarang. Selain itu, bahan ajar dengan tampilan visual (gambar), memberikan efektifitas tersampainya materi pembelajaran lebih tinggi pada para peserta didik. Diharapkan, pengabdian ini memberikan dampak terhadap peningkatan bahan ajar di kelas, dan berkorelasi positif atas hasil belajar peserta didik. Metode yang digunakan adalah pelatihan, praktik, dan pendampingan membuat buku ajar dengan mengelola limbah kertas. Pertemuan akan diselenggarakan sebanyak 15 kali, di dalamnya terdapat 3 pertemuan dilakukan untuk memberikan pengantar dan evaluasi kegiatan, serta penguatan keterampilan dengan ilmu pengetahuan pendukung. Sebanyak 12 pertemuan, peserta pelatihan didampingi mengelola limbah kertas dengan teknik montase untuk dijadikan sebagai bahan ajar, sesuai dengan materi pembelajaran di sekolah dasar. Evaluasi ketercapaian materi dengan cara penilaian buku ajar yang dihasilkan oleh peserta pelatihan. Pelaksaan pengabdian di hari Sabtu, dalam acara rutin KKG yang diselenggarakan oleh Gugus Larasati di Gunungpati Semarang. Seluruh kegiatan pengabdian dilaksanakan selama 8 bulan, menghasilkan luaran, yaitu: peningkatan keterampilan guru membuat bahan ajar, jurnal, dan publikasi dimedia massa.
PENDIDIKAN KONSERVASI BERBASIS JELAJAH ALAM SEKITAR (JAS) DI SEKOLAH DASAR SE-KELURAHAN SEKARAN KECAMATAN GUNUNGPATI KOTA SEMARANG
Authors: Kartijono Nugroho Edi , Rahayuningsih Margareta , Abdullah Muhammad 
Published: April 2019

Kesadaran dan kepedulian lingkungan harus ditanamkan ke masyarakat sejak usia dini, salah satunya melalui pendidikan konservasi. Anak usia dini masih sangat sensitif secara psikologi, sehingga pembentukan sikap dan karakter sangat tepat dimulai pada usia ini. Dalam pembelajaran pendidikan konservasi, sumber belajar yang dapat digunakan sebagai alternatif adalah lingkungan di sekitar sekolah atau lingkungan di sekitar tempat tinggal siswa. Pemanfaatan lingkungan sebagai sumber belajar dengan melakukan jelajah alam sekitar (JAS) diharapkan mampu memberikan pengalaman belajar yang konkret karena dapat mengamati langsung objek yang dipelajari. Tahapan kegiatan yang sudah dilakukan dalam kegiatan pengabdian ini adalah pengenalan materi pendidikan konservasi kepada guru dan siswa, pembelajaran pendidikan konservasi dengan memanfaatkan lingkungan sekolah menggunakan pendekatan JAS, pendampingan dan penyusunan modul pendidikankonservasi am:“Eksplorasi Panduan LapanganAl bagi.Rencana selanjutnya Penjelajah adalah pendampingan secara berkelanjutan terhadap SD di Kelurahan Sekaran dan sekolah lain dalam skala yang lebih luas.