bluuebunny/crossref_metadata_2025 huggingface dataset:
Peningkatan Rank Webometrics Menggunakan Metode Inbound Dan Outbound Pada Perguruan Tinggi
Authors: Rahardja Untung , Dewi Endah Nirmala , Lutfiani Ninda
Published: February 2018

Pesatnya perkembangan Teknologi Informasi saat ini memiliki peranan yang sangat penting dalam peningkatan daya saing perguruan tinggi yang berkualitas. Untuk mengetahui kualitas dan peringkat suatu perguruan tinggi terbaik maka diperlukan adanya parameter. Pemeringkatan webometrics adalah salah satu parameter penilaian terhadap kinerja web universitas dunia yang semakin menjadi perhatian khusus di kalangangan akademisi. Sebagai lembaga pendidikan yang mengedepankan ilmu komputer dengan selalu mengutamakan mutu, Perguruan Tinggi Raharja juga turut serta dalam peringkat webometrics untuk bersaing dengan perguruan tinggi tingkat dunia. Webometrics memberikan informasi mengenai kualitas suatu web universitas yang didukung dengan adanya subdomain dari domain utama yang dimiliki setiap universitas yang sudah mendaftarkan untuk bisa masuk dalam ranking webometrics ini. Semakin kecil rank yang di dapat maka semakin besar peluang untuk  menduduki peringkat atas. Adapun kriteria atau level yang dibuat menggunakan metode pendekatan obyek 10 level inbound, hal ini untuk memudahkan penyebaran link agar sesuai dengan target yang diharapkan dan lebih meluas sehingga mencapai hasil yang maksimal untuk mencapai predikat perguruan tinggi yang masuk dalam World Class University (WCU).
Implementasi Fuzzy - Service Quality Terhadap Tingkat Kepuasan Layanan Mahasiswa
Authors: Kartika Nanny Fajar , . Suprayogi
Published: February 2018

Setiap mahasiswa tentunya ingin mendapatkan kualitas pelayanan pendidikan yang optimal dan sesuai dengan harapan mahasiswa. Oleh karena itu, perlu dilakukan pengukuran untuk mengetahui seberapa besar tingkat puas atau tidaknya mahasiswa terhadap kualitas layanan pendidikan yang diberikan oleh pihak universitas. Pengolahan data dilakukan dengan menghitung nilai fuzzifikasi, defuzzifikasi, serta perhitungan nilai GAP antara persepsi dan harapan mahasiswa. Dengan hasil yang diperoleh, dapat membantu pihak Universitas Dian Nuswantoro dalam meningkatkan kinerja dan kualitas pelayanan dalam hal bidang akademik, dan sarana prasarana. Dari hasil pengolahan data menggunakan metode fuzzy-servqual (service quality) diperoleh hasil yang memiliki gap terbesar dan perlunya ada perhatian khusus dan perbaikan dari pihak universitas yaitu gap dengan nilai terbesar adalah atribut kenyamanan, kebersihan dan ketersediaan lahan parkir dengan nilai gap sebesar (-2.55), kemudian peringkat kedua yaitu pada atribut ketersediaan bandwidth hotspot dengan nilai gap (-2.523), selanjutnya atribut ketersediaan green area dengan nilai gap (-2.521). Dari hasil perhitungan Gap secara keseluruhan menunjukkan bahwa nilai gap negative dengan arti yaitu persepsi atau layanan yang diterima mahasiswa tidak sesuai dengan harapan mahasiswa
Perancangan Desain Brosur Penunjang Informasi dan Promosi pada SMA Pribadi 2
Authors: Febriyanto Erick , Mutakin Ainul , Armansyah Fernanda Setyobudi
Published: February 2018

Promosi pada umumnya dilakukan untuk memperkenalkan atau memberitahu sebuah informasi mengenai produk atau jasa yang dimiliki oleh suatu instansi yang tujuannyaadalah untuk mempengaruhi atau menarik minat para masyarakat untuk mencoba dan membeli, atau menggunakan produk atau jasa yang ditawarkan oleh instansi tersebut. Banyak dari peruashaan atau instansi menggunakan jenis media cetak untuk mempromosikan produk atau jasa salah satunya yaitu brosur. Brosur adalah jenis media informasi yang berupa selembar kertas yang didalamnya terdapat informasi mengenai produk atau jasa yang ditawarkan agar produk dan jasa tersebut dapat dikenal dimasarakat. Seperti yang dilakukan oleh Yayasan Perguruan Pribadi ialah salah satu instansi yang bergerak dalam bidang pendidikan di Kota Tangerang. Untuk meningkatkan jumlah peserta didik baru disetiap tahunnya maka SMA Pribadi 2 Kota Tangerang harus memiliki sebuah media promosi dan informasi yangdapat menarik dan mencakup seluruh fasilitas dan aset yang ada di pada SMA Pribadi 2 Kota Tangerang. Oleh karena itu melalui Perancangan Desain Brosur Penunjang Informasi dan Promosi ini diharapkan dapat meningkatkan jumlah siswa siswi SMA Pribadi 2 Kota Tangerang ditahun berikutnya dan SMA Pribadi 2 Kota Tangerang dapat dikenal lebih luas agar para masyarakat dapat menimbah ilmu pada SMA Pribadi 2 Kota Tangerang.
Desain Visual Antarmuka Website E-kartu nikah
Authors: Rahayu Dwi , S Dalillah Razan , P Annisa Rahayu , P Imam Ainuddin , Megira Selvy , Andriani Ria , Pujianto Ade , Utami Ema
Published: February 2018

Pernikahan yang sah secara agama dan yang tercatat resmi oleh pemerintah ditunjukkan dengan bukti kepemilikan buku nikah. Buku nikah menjadi salah satu dokumen pribadi yang digunakan untuk berbagai kepengurusan dan birokrasi pemerintahan seperti pembuatan pasport, tunjangan keluarga, asuransi  dan urusan lainnya. Efektifitas dari segi keamanan maupun dalam penggunaan buku bikah sangatlah perlu untuk ditingkatkan. E-kartu nikah merupakan elektronik buku nikah yang dilengkapi dengan teknologi mikrochip sebagai media penyimpan data dan sebagai kemanan data yang tersimpan didalamnya. Informasi yang tersimpan didalamnya adalah informasi yang ada pada buku nikah. Kartu pintar E-kartu nikah terintegrasi dengan website, dimana pengguna dapat mengakses infromasi menggunakan nomor seri yang ada pada E-kartu nikah. Teknologi microchip yang tertanam pada kartu mempermudah dan mempercepat proses verfikasi data apabila suatu kepengurusan menggunakan alat bantu card reader. Sasaran pengguna website E-kartu nikah mencangkup semua golongan dengan rentang usia diatas 19 tahun. Pada penelitian ini fokus pada perancangan antarmuka website dengan memperhatikan aspek elemen-elemen dasar desain visual pada desain antarmuka dengan menggunakan model prtotipe jenis evolutionary. Hasil akhir dari penilitian ini adalah rancangan kartu pintar terbuat dari plastik dan berukuran 5,4 x 8,6 cm dan website sebagai portal akses E-kartu nikah.
ALTERNATIF PEMILIHAN LOKASI BANDARA DOMESTIK DI KABUPATEN LAMONGAN
Authors: Cahyanto Gadik , Lubis Zulkifli
Published: February 2018

Lamongan regency is a regency in East Java province and enter the strategic area of development of Kertasusila Gate, Juanda Airport development discourse began to be raised to the surface. Was triggered by a prediction in 2019 which mentions Juanda International Airport experiencing passenger and flight density, coinciding with AFTA in 2015 which is an ASEAN Open Sky program held in ASEAN. East Java Provincial Government puts the plan into East Java Provincial RTRW 2011-2031. The airport development in Lamongan Regency has also been included in the document of East Java Province Transportation (Tatrawil) in 2012-2032. Therefore it is necessary to determine the location of the airport in Lamongan Regency. This Research In accordance with KM No. 20 Year 2014 Minister of Transportation on the procedures and procedures for determining the location of the airport then the feasibility of determining the location of the new airport is based on 2 aspects of feasibility in use to confirm the variables that affect the determination of alternative locations in Lamongan regency namely the administrative and technical aspects. Based on multi-criteria analysis then selected alternative location in Paciran village South axis on the left side of the direction from Gresik City to Tuban. Based on analysis and observation overlay obtained airport matching location is in Paciran district with coordinates 6º53'09.13 "S, 112º 22 ' 19.31 "T (Elevation 7m, eye height 5.75 km).
Analisa Instalasi Listrik Pada Rusunawa Dengan Metode Studi Deskriptif Kasus Rusunawa Universitas Islam Lamongan
Authors: Ilmi Ulul , Sukardi Sukardi
Published: February 2018

Pembangunan gedung semakin bertambah di Universitas Islam Lamongan, salah satu gedung yang baru adalah Rumah Susun Mahasiswa (Rusunawa).Dalam pengembangan dan perluasan area gedung perlu adanya perencanan sistem distribusi yang baik,tidak hanya bertitik tolak kepada kebutuhan beban sesaat, tetapi diperhitungkan pula secara teliti beban yang dilayani. Beban tersebut harus dalam keadaan seimbang. Beban yang digunakan pada gedung tersebut antara lain berupa perangkat-perangkat kerja, maka dalam sistem instalasi listrik perlu diperhatikan pembagian beban tiap grup. Dengan begitu tidak akan terjadi droppada tegangan listrik.Analisa instalasi listrik pada gedung Rusunawa Universitas Islam Lamongan bertujuan untuk mendapatkan jumlah efisiensi beban yang terpasang pada Rusunawa. Hasil penelitian menunjukkan jumlah efisiensi pembagian beban pada gedung Rusunawa di Universitas Islam Lamongan sebesar 24,7 %, artinya terdapat penghematan pemakaian tenaga listrik.
Farmers’ Criteria for Pesticide Selection and Use in the Pest Control Process
Authors: Sharifzadeh Mohammad , Abdollahzadeh Gholamhossein , Damalas Christos , Rezaei Rohollah
Published: February 2018

Chemical pesticides have been widely overused by farmers in Iran, but farmers’ criteria for pesticide selection and use are not well understood. A field survey of 411 farmers was carried out in Mazandaran, Iran, to study farmers’ criteria for selecting and using pesticides in the pest control process and explaining differences in selection criteria among farmers. From a list with a total of 25 criteria, five main groups were identified as key decision criteria for pesticide selection and use, using factor analysis. These groups included: (i) performance and effectiveness criteria, (ii) awareness and information criteria, (iii) technical and operational criteria, (iv) environmental criteria, and (v) financial and accessibility criteria. Performance and effectiveness criteria had the highest importance for farmers when selecting and using pesticides (mean 3.45), followed by financial and accessibility criteria (mean 3.28). Farmers who received training regarding pesticide use (mean 2.23 vs. 1.90) and farmers who had experience with integrated pest management (IPM) practices (mean 2.46 vs. 1.79) tended to consider environmental criteria when selecting and using pesticides. Similarly, farmers who experienced health risks related to working with pesticides (mean 2.0 vs. 1.77), farmers who used protection when spraying (mean 2.58 vs. 1.87), and farmers who knew about natural enemies of pests (mean 2.11 vs. 1.85) tended to consider environmental criteria when selecting and using pesticides. Farmers without off-farm income tended to consider financial and accessibility criteria more than farmers with off-farm income (mean 3.40 vs. 3.18). Farmers with college education favored awareness and information criteria, whereas experienced farmers favored the criteria of performance and effectiveness. Farmers with a high income showed a tendency to prefer performance and effectiveness criteria more than farmers with less income. Farmers who thought that pesticides are hazardous preferred environmental criteria more than farmers who thought that pesticides are not hazardous. Farmers who believed in the effectiveness of alternatives to chemical pest control (e.g., use of biological control, pheromone traps, or cultural control) preferred performance and effectiveness criteria less than farmers who believed no effectiveness or slight effectiveness of alternatives to chemical pest control. The findings provide useful information for better understanding factors affecting farmers’ choices of pesticides and for improving future extension courses related to farmers’ decisions about pesticide use.
Prioritization Assessment for Capability Gaps in Weapon System of Systems Based on the Conditional Evidential Network
Authors: Pei Dong , Qin Daguo , Sun Yang , Bu Guangzhi , Yao Zhonghua
Published: February 2018

The prioritization of capability gaps for weapon system of systems is the basis for design and capability planning in the system of systems development process. In order to address input information uncertainties, the prioritization of capability gaps is computed in two steps using the conditional evidential network method. First, we evaluated the belief distribution of degree of required satisfaction for capabilities, and then calculated the reverse conditional belief function between capability hierarchies. We also provided verification for the feasibility and effectiveness of the proposed method through a prioritization of capability gaps calculation using an example of a spatial-navigation-and-positioning system of systems.
Mathematical Models of Electro-Magnetohydrodynamic Multiphase Flows Synthesis with Nano-Sized Hafnium Particles
Authors: Hussain Farooq , Ellahi Rahmat , Zeeshan Ahmad
Published: February 2018

The multiphase fluid flow under the influence of electro-magnetohydrodynamics (EHD) is investigated in this study. The base fluid contains hafnium particles. Two illustrative models namely fluid phase and particulate phase are considered for three different geometries having great importance in both industrial and mechanical usage. The impact of pertinent parameters from different aspects is illustrated graphically with requisite discussion keeping in view their physical aspects. The stream lines are also erected to highlight their physical importance regarding the flow patterns. In addition, the paper is terminated by making a comparison with the existing literature as a limiting case of considered problem to confirm the validations of achieved results and hence found in excellent agreement. This model can be used to design and engineer for nozzle or diffuser type of injectors in the latest models of automobiles to improve their performance and reduce the consumption of fuel.
Effective Biopotential Signal Acquisition: Comparison of Different Shielded Drive Technologies
Authors: Jiang Yanbing , Samuel Oluwarotimi , Liu Xueyu , Wang Xin , Idowu Paul , Li Peng , Chen Fei , Zhu Mingxing , Geng Yanjuan , Wu Fengxia , Chen Shixiong , Li Guanglin
Published: February 2018

Biopotential signals are mainly characterized by low amplitude and thus often distorted by extraneous interferences, such as power line interference in the recording environment and movement artifacts during the acquisition process. With the presence of such large-amplitude interferences, subsequent processing and analysis of the acquired signals becomes quite a challenging task that has been reported by many previous studies. A number of software-based filtering techniques have been proposed, with most of them being able to minimize the interferences but at the expense of distorting the useful components of the target signal. Therefore, this study proposes a hardware-based method that utilizes a shielded drive circuit to eliminate extraneous interferences on biopotential signal recordings, while also preserving all useful components of the target signal. The performance of the proposed method was evaluated by comparing the results with conventional hardware and software filtering methods in three different biopotential signal recording experiments (electrocardiogram (ECG), electro-oculogram (EOG), and electromyography (EMG)) on an ADS1299EEG-FE platform. The results showed that the proposed method could effectively suppress power line interference as well as its harmonic components, and it could also significantly eliminate the influence of unwanted electrode lead jitter interference. Findings from this study suggest that the proposed method may provide potential insight into high quality acquisition of different biopotential signals to greatly ease subsequent processing in various biomedical applications.
Localized Space-Time Autoregressive Parameters Estimation for Traffic Flow Prediction in Urban Road Networks
Authors: Chen Jianbin , Li Demin , Zhang Guanglin , Zhang Xiaolu
Published: February 2018

With the rapid increase of private vehicles, traffic congestion has become a worldwide problem. Various models have been proposed to undertake traffic prediction. Among them, autoregressive integrated moving average (ARIMA) models are quite popular for their good performance (simple, low complexity, etc.) in traffic prediction. Localized Space-Time ARIMA (LSTARIMA) improves ARIMA’s prediction accuracy by extending the widely used STARIMA with a dynamic weight matrix. In this paper, a localized space-time autoregressive (LSTAR) model was proposed and a new parameters estimation method was formulated based on the LSTARIMA model to reduce computational complexity for real-time prediction purposes. Moreover, two theorems are given and verified for parameter estimation of our proposed LSTAR model. The simulation results showed that LSTAR provided better prediction accuracy when compared to other time series models such as Shift, autoregressive (AR), seasonal moving average (Seasonal MA), and Space-Time AR (STAR). We found that the prediction accuracy of LSTAR was a bit lower than the LSTARIMA model in the simulation results. However, the computational complexity of the LSTAR model was also lower than the LSTARIMA model. Therefore, there exists a tradeoff between the prediction accuracy and the computational complexity for the two models.
Formation and Characterization of Inkjet-Printed Nanosilver Lines on Plasma-Treated Glass Substrates
Authors: Kwon Jae-Sung , Lee Dong , Oh Je
Published: February 2018

In this study, we investigated geometrical characteristics of the inkjet-printed lines with non-zero receding contact angle (CA) on plasma-treated substrates in terms of various printing variables and analyzed the fluidic behavior and hydrodynamic instability involved in the line formation process. The printing variables included surface energy, droplet overlap ratio, printing frequency, a number of ink droplets, substrate temperature and printing procedures. For the study, a colloidal suspension containing 56 wt % silver nanoparticles in tetradecane solvent was used as a printing ink. It has electrical resistivity of 4.7 μΩ·cm. The substrates were obtained by performing a plasma enhanced chemical vapor deposition (PECVD) process with C4F8 and O2 under various treatment conditions. As results of the experiments, the surface shape and pattern of the inkjet-printed Ag lines were dominantly influenced by the surface energy of the substrates, among the printing variables. Accordingly even when the receding CA was non-zero, bulging instability of the lines occurred forming separate circular patterns or regular bulges connected by ridges. It is a new finding of this study, which is completely different with the bulging instability of inkjet lines with zero receding CA specified by previous researches. The bulging instability decreased by increasing surface temperature of the substrates or employing interlacing procedure instead of continuous procedure for printing. The interlacing procedure also was advantageous to fabricate thick and narrow Ag lines with well-defined shape through overprinting on a hydrophobic substrate. These results will contribute greatly to not only the production of various printed electronics containing high-aspect-ratio structures but also the improvement of working performance of the devices.
Day-Night Differences, Seasonal Variations and Source Apportionment of PM10-Bound PAHs over Xi’an, Northwest China
Authors: Wang Xin , Shen Zhenxing , Zeng Yaling , Liu Fobang , Zhang Qian , Lei Yali , Xu Hongmei , Cao Junji , Yang Liu
Published: February 2018

Day-night PM10-bound PAHs were studied at an urban site of Xi’an from 20 December 2006 to 28 October 2007. The annual mean concentration of nighttime PAHs (285.0 ng m−3) was higher than that in daytime (239.4 ng m−3). A significant difference of PAH concentrations between daytime and nighttime was found in autumn with a coefficient of divergence (CD) of 0.23 (significant level 0.2). However, no distinct difference was observed in other seasons (with CD values < 0.2), although the difference of PAHs partition capacity in PM10 between daytime and nighttime was significant in the four seasons. Remarkable seasonal variations were observed in the total PAH levels, with a highest mean concentration of 344.6 ng m−3 in winter and a lowest mean concentration of 177 ng m−3 in summer. Positive matrix factorization results revealed that residential emission for heating is the major contributor of the elevated PAH levels in winter, accounting for 49% of the total PAH levels. The coal combustion including industrial and residential usage, contributed over 40% of the PAH emissions in PM10 of Xi’an during the one-year sampling period. These results can provide guidance for taking measures in reducing PAHs levels in the air.
Probing Contaminant-Induced Alterations in Chlorophyll Fluorescence by AC-Dielectrophoresis-Based 2D-Algal Array
Authors: Siebman Coralie , Velev Orlin , Slaveykova Vera
Published: February 2018

The investigation of contaminant impact on algae requires rapid and reliable cell collection and optical detection. The capability of alternative current (AC) dielectrophoresis (DEP) collection of whole cell arrays with combined fluorescence microscopy detection to follow the alterations of chlorophyll fluorescence during environmental contaminant exposure was explored. The application of an AC-field of 100 V cm−1, 100 Hz for 30 min to capture and immobilize the cells of green alga Chlamydomonas reinhardtii in two-dimensional (2D) arrays does not induce changes in chlorophyll fluorescence. The results demonstrate that DEP-based 2D-arrays allow non-invasive detection of chlorophyll fluorescence change upon exposure to high concentrations of copper oxide nanoparticles and ionic copper. These results were in agreement with data obtained by flow cytometry used as a comparative method. The tool was also applied to follow the effect of a number of ubiquitous contaminants such as inorganic mercury, methylmercury, and diuron. However, a statistically significant short-term effect was observed only for mercury. Overall, DEP-based 2D-arrays of algal cells with fluorescence detection appear to be suitable for stain-free probing the effects on the photosynthetic microorganisms in highly polluted environment.
FE Modelling of the Seismic Behavior of Wide Beam-Column Joints Strengthened with CFRP Systems
Authors: Santarsiero Giuseppe
Published: February 2018

A large share of reinforced concrete (RC) framed buildings is provided with wide beams being a type of beam allowing greater freedom in the architectural arrangement of interiors, beyond further advantage due to fewer formworks needed during the construction. Nevertheless, little attention has been devoted to the seismic vulnerability of this kind of framed RC buildings as well as to the study of strengthening systems purposely developed for wide beams and wide beam-column connections. Under these premises, this paper proposes simple strengthening solutions made by Fibre Reinforced Polymers (FRP) systems able to effectively improve seismic capacity through feasible arrangement suitable in case a wide beam is present. On the basis of wide beam-column joints previously tested without strengthening system, detailed nonlinear finite element models were calibrated. Then, an FRP strengthening intervention based on a brand new arrangement was modeled in order to perform additional simulations under seismic actions. This way, the effectiveness of the strengthening intervention was assessed finding out that significant strength and ductility increments were achieved with a relatively simple and cheap strengthening arrangement. Additional research would be desirable in the form of experimental tests on the simulated wide beam-column joints.
One-Pot Combination of Metal- and Bio-Catalysis in Water for the Synthesis of Chiral Molecules
Authors: Ríos-Lombardía Nicolás , García-Álvarez Joaquín , González-Sabín Javier
Published: February 2018

During the last decade, the combination of different metal- and bio-catalyzed organic reactions in aqueous media has permitted the flourishing of a variety of one-pot asymmetric multi-catalytic reactions devoted to the construction of enantiopure and high added-value chemicals under mild reaction conditions (usually room temperature) and in the presence of air. Herein, a comprehensive account of the state-of-the-art in the development of catalytic networks by combining metallic and biological catalysts in aqueous media (the natural environment of enzymes) is presented. Among others, the combination of metal-catalyzed isomerizations, cycloadditions, hydrations, olefin metathesis, oxidations, C-C cross-coupling and hydrogenation reactions, with several biocatalyzed transformations of organic groups (enzymatic reduction, epoxidation, halogenation or ester hydrolysis), are discussed.
Temperature-Induced Reversible and Irreversible Transitions between Metastable Perovskite Phases in the BiFe1−yScyO3 Solid Solutions
Authors: Salak Andrei , Khalyavin Dmitry , Eardley Edwin , Olekhnovich Nikolai , Pushkarev Anatoli , Radyush Yury , Shilin Aleksandr , Rubanik Vasili
Published: February 2018

The antipolar orthorhombic Pnma phase with the 2 a p × 4 a p × 2 2 a p superstructure (ap ~4 Å is the pseudocubic perovskite unit-cell parameter) is observed in many perovskite compositions derived from BiFeO3. Temperature-induced structural transformations in metastable perovskite solid solutions with the Pnma structure corresponding to the range of 0.30 ≤ y ≤ 0.60 of the (1−y)BiFeO3-yBiScO3 quasi binary system were studied using temperature X-ray and neutron powder diffraction. These compositions cannot be prepared in bulk form at ambient pressure but can be stabilized in the Pnma phase by means of quenching after synthesis under high pressure. The compositions were investigated in situ between 1.5 K and the temperature of the stability limit of their metastable phases (about 870–920 K). It has been found that heating the as-prepared compositions with the Pnma phase leads to formation of the rhombohedral R3c phase ( 2 a p × 2 a p × 2 3 a p ), which, on cooling down to room temperature, either remains or transforms into a polar orthorhombic Ima2 phase ( 2 a p × 2 a p × 2 a p ). The observed phase transformations in the BiFe1−yScyO3 perovskite series on heating and on cooling are considered in terms of geometrical factors.
Effects of Alloying Atoms on Antiphase Boundary Energy and Yield Stress Anomaly of L12 Intermetallics: First-Principles Study
Authors: Gao Xiaojun , Wang Jianwei , Wu Xiaozhi , Wang Rui , Jia Zhihong
Published: February 2018

The antiphase boundary energies of {111} and {010} planes in L1 2 intermetallics (Ni 3 Ge, Ni 3 Si, Al 3 Sc, Ni 3 Al, Ni 3 Ga and Al 3 Ti) under different pressure are presented using first-principle methods. The yield stress anomaly is predicted by the energy criterion p-factor based on the anisotropy of antiphase boundary energies and elasticity. These L1 2 intermetallics exhibit anomalous yield stress behavior except Al 3 Sc. It is found that pressure cannot introduce the transition between anomalous and normal behavior. In order to investigate the transition, Al 3 Sc, Ni 3 Si and Ni 3 Ge with substituting atoms are investigated in detail due to p-factors of them are close to the critical value p c = 3 . Al 3 Sc can change to anomalous when Sc atoms in {010} planes are substituted by Ti with plane concentration 25%. When Li substitutes Al in {111} planes, anomalous Al 3 Sc will change to normal. Ni 3 Si and Ni 3 Ge can exhibit normal yield stress behavior when Ge and Si in {111} planes are substituted by alloying atoms with plane concentrations 12.5% and 25%. When Ga and Al substitute in {010} planes, normal Ni 3 Si and Ni 3 Ge will revert to anomalous behavior. Therefore, transparent transition between normal and anomalous yield stress behavior in L1 2 intermetallics can be introduced by alloying atoms.
Restorative and Esthetic Dentistry—A Special Issue of the Dentistry Journal
Authors: Chen Min-Huey
Published: February 2018

Due to the development of dental materials and the esthetic requirements of patients, conservative restoration and esthetic dentistry is becoming more and more important.[...]
Bayesian Technique for the Selection of Probability Distributions for Frequency Analyses of Hydrometeorological Extremes
Authors: Chen Lu , Singh Vijay , Huang Kangdi
Published: February 2018

Frequency analysis of hydrometeorological extremes plays an important role in the design of hydraulic structures. A multitude of distributions have been employed for hydrological frequency analysis, and more than one distribution is often found to be adequate for frequency analysis. The current method for selecting the best fitted distributions are not so objective. Using different kinds of constraints, entropy theory was employed in this study to derive five generalized distributions for frequency analysis. These distributions are the generalized gamma (GG) distribution, generalized beta distribution of the second kind (GB2), Halphen type A distribution (Hal-A), Halphen type B distribution (Hal-B), and Halphen type inverse B (Hal-IB) distribution. The Bayesian technique was employed to objectively select the optimal distribution. The method of selection was tested using simulation as well as using extreme daily and hourly rainfall data from the Mississippi. The results showed that the Bayesian technique was able to select the best fitted distribution, thus providing a new way for model selection for frequency analysis of hydrometeorological extremes.
Stochastic Proximal Gradient Algorithms for Multi-Source Quantitative Photoacoustic Tomography
Authors: Rabanser Simon , Neumann Lukas , Haltmeier Markus
Published: February 2018

The development of accurate and efficient image reconstruction algorithms is a central aspect of quantitative photoacoustic tomography (QPAT). In this paper, we address this issues for multi-source QPAT using the radiative transfer equation (RTE) as accurate model for light transport. The tissue parameters are jointly reconstructed from the acoustical data measured for each of the applied sources. We develop stochastic proximal gradient methods for multi-source QPAT, which are more efficient than standard proximal gradient methods in which a single iterative update has complexity proportional to the number applies sources. Additionally, we introduce a completely new formulation of QPAT as multilinear (MULL) inverse problem which avoids explicitly solving the RTE. The MULL formulation of QPAT is again addressed with stochastic proximal gradient methods. Numerical results for both approaches are presented. Besides the introduction of stochastic proximal gradient algorithms to QPAT, we consider the new MULL formulation of QPAT as main contribution of this paper.
Teaching Management System with Applications of RFID and IoT Technology
Authors: Tan Ping , Wu Han , Li Peng , Xu He
Published: February 2018

Currently, Internet of Things (IoT) technologies are used in many areas, such as intelligent transportation, smart city, hospital, games, education. Earlier interactive response system uses infrared or radio frequency (RF) wireless communication technologies to transmit the students’ answer to teachers’ managerment system, where there exists high cost, inconvenient usage, difficult deployment. How to use IoT to improve the quality of higher education becomes a very important topic in the researh area of teaching. Radio Frequency Identification (RFID) is one of key technologies to implement IoT applications, and most of universities use the High Frequency (HF) RFID card as the students’ identification devices in China. In this paper, a kind of WiFi supported RFID reader (WiRF) is implemented using open source hardware platforms, such as Node MCU and RFID-RC522. Then the proposed WiRF system is used to assist teacher to perform automatic attendance record and students’ behavior record. In addition, Quick Response (QR) code is another technology to enable IoT. In this paper, QR code is designed to quickly access course video and perform real-time interactive response in the classroom, which will provide multidimensional learning and strengthen the motivation of students’ learning. This IoT system can improve the attendance of students, and give a positive impact on students’ learning process for higher education.
A Simple and Efficient Adaptive ISM-Band Antenna Based on a Reconfigurable Optically Driven Parasitic Structure
Authors: Donelli Massimo
Published: February 2018

This paper describes the development and the realization of an adaptive antenna based on a reconfigurable parasitic structure. The geometry of the proposed antenna is circular, and it is composed by an active omni-directional radiator, surrounded by a number of parasitic elements that can be optically activated and configured as a director or as a reflector. The optical switches are activated by means of optic fibers in order to avoid electromagnetic perturbations. The optimized structure of the parasitic elements permits a high versatility since each parasitic element can act as reflector or director. Thanks to this structure, integrated with a suitable control software, it is possible to obtain a directive beam pattern that can be opportunely set in order to maximize the coupling with a desired signal and to attenuate the presence of interfering signals. A prototype has been designed, developed and experimentally assessed. The prototype has been integrated with a control software and the whole system has been numerically and experimentally tested. A good agreement between numerical and experimental results has been obtained demonstrating the capabilities of the proposed antenna prototype.
Modelling the Effect of Driving Events on Electrical Vehicle Energy Consumption Using Inertial Sensors in Smartphones
Authors: Jiménez David , Hernández Sara , Fraile-Ardanuy Jesús , Serrano Javier , Fernández Rubén , Álvarez Federico
Published: February 2018

Air pollution and climate change are some of the main problems that humankind is currently facing. The electrification of the transport sector will help to reduce these problems, but one of the major barriers for the massive adoption of electric vehicles is their limited range. The energy consumption in these vehicles is affected, among other variables, by the driving behavior, making range a value that must be personalized to each driver and each type of electric vehicle. In this paper we offer a way to estimate a personalized energy consumption model by the use of the vehicle dynamics and the driving events detected by the use of the smartphone inertial sensors, allowing an easy and non-intrusive manner to predict the correct range for each user. This paper proposes, for the classification of events, a deep neural network (Long-Short Time Memory) which has been trained with more than 22,000 car trips, and the application to improve the consumption model taking into account the driver behavior captured across different trips, allowing a personalized prediction. Results and validation in real cases show that errors in the predicted consumption values are halved when abrupt events are considered in the model.
An Analysis for the Influences of Fracture Network System on Multi-Stage Fractured Horizontal Well Productivity in Shale Gas Reservoirs
Authors: Zhang Deliang , Dai Yu , Ma Xinhua , Zhang Liehui , Zhong Bing , Wu Jianfa , Tao Zhengwu
Published: February 2018

This paper presents two representative models to analyze the flow dynamic of multi-scale porous medium in hydraulic fractured horizontal shale gas wells. In this work, considering the characteristic mechanisms (multi-scale porous space, desorption and diffusion), flow equations in shale are established. After that, two representative models (discrete fracture model and dual-porosity model) are tailored to our issues. Solved by the control-volume finite element method (CVFEM), influences of fracture network system on productivity in shale reservoirs are analyzed in detail. Based on the analysis, the effects can be summarized as follow: at the beginning of production, high conductivity fracture network means more free gas could be produced; at the later part of production, high conductive fracture network can form a large low pressure region, which can not only stimulate the desorption of adsorbed gas, but also reduce the flow resistance to the well. Finally, the sensitivities of characteristic parameters in shale are discussed.
Derivation and Application of a New Transmission Loss Formula for Power System Economic Dispatch
Authors: Huang Wei-Tzer , Yao Kai-Chao , Chen Ming-Ku , Wang Feng-Ying , Zhu Cang-Hui , Chang Yung-Ruei , Lee Yih-Der , Ho Yuan-Hsiang
Published: February 2018

The expression and calculation of transmission loss (TL) play key roles for solving the power system economic dispatch (ED) problem. ED including TL must compute the total TL and incremental transmission loss (ITL) by executing power flow equations. However, solving the power flow equations is time-consuming and may result in divergence by the iteration procedure. This approach is unsuitable for real-time ED in practical power systems. To avoid solving nonlinear power flow equations, most power companies continue to adopt the TL formula in ED. Traditional loss formulas are composed of network parameters and in terms of the generator’s real power outputs. These formulas are derived by several assumptions, but these basic assumptions sacrifice accuracy. In this study, a new expression for the loss formula is proposed to improve the shortcomings of traditional loss formulas. The coefficients in the new loss formula can be obtained by recording the power losses according to varying real and reactive power outputs without any assumptions. The simultaneous equations of the second-order expansion of the Taylor series are then established. Finally, the corresponding coefficients can be calculated by solving the simultaneous equations. These new coefficients can be used in optimal real and reactive power dispatch problems. The proposed approach is tested by IEEE 14-bus and 30-bus systems, and the results are compared with those obtained from the traditional B coefficient method and the load flow method. The numerical results show that the proposed new loss formula for ED can hold high accuracy for different loading conditions and is very suitable for real-time applications.
Research on an Electric Vehicle Owner-Friendly Charging Strategy Using Photovoltaic Generation at Office Sites in Major Chinese Cities
Authors: Su Su , Hu Yong , Yang Tiantian , Wang Shidan , Liu Ziqi , Wei Xiangxiang , Xia Mingchao , Ota Yutaka , Yamashita Koji
Published: February 2018

Electric vehicles (EV) and photovoltaic (PV) generation are widely recognized around the world. Most EV owners in the major Chinese cities are forced to charge their EV batteries at the workplace during the daytime due to the limited space near their homes, which will increase the peak load during the daytime. On the other hand, the PV output is most likely to have a peak at around noon, which means, PVs could have a potential capability to compensate the EV charging load. An EV owner-friendly charging strategy based on PV utilization which alleviates both the EV charging constraints and the negative impact of the EV charging load on the grid is proposed. The PV utilization for compensating the unconstrained EV charging load is maximized to derive the maximum number of EVs with unconstrained charging. If the actual number of EVs exceeds the maximum number, a portion of EVs have to be charged only from the grid. Then, the line loss is introduced as the optimization objective in which the charging states are regulated. The case study shows that the proposed strategy can successfully increase the number of EVs with unconstrained charging, and reduce the peak-to-peak of the load curve.
The Design of a Permanent Magnet In-Wheel Motor with Dual-Stator and Dual-Field-Excitation Used in Electric Vehicles
Authors: Gao Peng , Gu Yuxi , Wang Xiaoyuan
Published: February 2018

The in-wheel motor has received more attention owing to its simple structure, high transmission efficiency, flexible control, and easy integration design. It is difficult to achieve high performance with conventional motors due to their dimensions and structure. This paper presents a new dual-stator and dual-field-excitation permanent-magnet in-wheel motor (DDPMIM) that is based on the structure of the conventional in-wheel motor and the structure of both the radial and axial magnetic field motor. The finite element analysis (FEA) model of the DDPMIM is established and compared with that of the conventional in-wheel motor. The results show that the DDPMIM achieves a higher output torque at low speeds and that the flux-weakening control strategy is not needed in the full speed range.
Kinematics of a Fluid Ellipse in a Linear Flow
Authors: Lilly Jonathan
Published: February 2018

A four-parameter kinematic model for the position of a fluid parcel in a time-varying ellipse is introduced. For any ellipse advected by an arbitrary linear two-dimensional flow, the rates of change of the ellipse parameters are uniquely determined by the four parameters of the velocity gradient matrix, and vice versa. This result, termed ellipse/flow equivalence, provides a stronger version of the well-known result that a linear velocity field maps an ellipse into another ellipse. Moreover, ellipse/flow equivalence is shown to be a manifestation of Stokes’ theorem. This is done by deriving a matrix-valued extension of the classical Stokes’ theorem that involves a spatial integral over the velocity gradient tensor, thus accounting for the two strain terms in addition to the divergence and vorticity. General expressions for various physical properties of an elliptical ring of fluid are also derived. The ellipse kinetic energy is found to be composed of three portions, associated respectively with the circulation, the rate of change of the moment of inertia, and the variance of parcel angular velocity around the ellipse. A particular innovation is the use of four matrices, termed the I J K L basis, that greatly facilitate the required calculations.
Ozone Depletion in Tropospheric Volcanic Plumes: From Halogen-Poor to Halogen-Rich Emissions
Authors: Roberts Tjarda
Published: February 2018

Volcanic halogen emissions to the troposphere undergo a rapid plume chemistry that destroys ozone. Quantifying the impact of volcanic halogens on tropospheric ozone is challenging, only a few observations exist. This study presents measurements of ozone in volcanic plumes from Kīlauea (HI, USA), a low halogen emitter. The results are combined with published data from high halogen emitters (Mt Etna, Italy; Mt Redoubt, AK, USA) to identify controls on plume processes. Ozone was measured during periods of relatively sustained Kīlauea plume exposure, using an Aeroqual instrument deployed alongside Multi-Gas SO2 and H2S sensors. Interferences were accounted for in data post-processing. The volcanic H2S/SO2 molar ratio was quantified as 0.03. At Halema‘uma‘u crater-rim, ozone was close to ambient in the emission plume (at 10 ppmv SO2). Measurements in grounding plume (at 5 ppmv SO2) about 10 km downwind of Pu‘u ‘Ō‘ō showed just slight ozone depletion. These Kīlauea observations contrast with substantial ozone depletion reported at Mt Etna and Mt Redoubt. Analysis of the combined data from these three volcanoes identifies the emitted Br/S as a strong but non-linear control on the rate of ozone depletion. Model simulations of the volcanic plume chemistry highlight that the proportion of HBr converted into reactive bromine is a key control on the efficiency of ozone depletion. This underlines the importance of chemistry in the very near-source plume on the fate and atmospheric impacts of volcanic emissions to the troposphere.
Impact of the Rainfall Duration and Temporal Rainfall Distribution Defined Using the Huff Curves on the Hydraulic Flood Modelling Results
Authors: Bezak Nejc , Šraj Mojca , Rusjan Simon , Mikoš Matjaž
Published: February 2018

In the case of ungauged catchments, different procedures can be used to derive the design hydrograph and design peak discharge, which are crucial input data for the design of different hydrotechnical engineering structures, or the production of flood hazard maps. One of the possible approaches involves using a hydrological model where one can calculate the design hydrograph through the design of a rainfall event. This study investigates the impact of the design rainfall on the combined one-dimensional/two-dimensional (1D/2D) hydraulic modelling results. The Glinščica Stream catchment located in Slovenia (central Europe) is used as a case study. Ten different design rainfall events were compared for 10 and 100-year return periods, where we used Huff curves for the design rainfall event definition. The results indicate that the selection of the design rainfall event should be regarded as an important step, since the hydraulic modelling results for different scenarios differ significantly. In the presented experimental case study, the maximum flooded area extent was twice as large as the minimum one, and the maximum water velocity over flooded areas was more than 10 times larger than the minimum one. This can lead to the production of very different flood hazard maps, and consequently planning very different flood protection schemes.
Improving Health Care Management in Primary Care for Homeless People: A Literature Review
Authors: Jego Maeva , Abcaya Julien , Ștefan Diana-Elena , Calvet-Montredon Céline , Gentile Stéphanie
Published: February 2018

Background: Homeless people have poorer health status than the general population. They need complex care management, because of associated medical troubles (somatic and psychiatric) and social difficulties. We aimed to describe the main characteristics of the primary care programs that take care of homeless people, and to identify which could be most relevant. Methods: We performed a literature review that included articles which described and evaluated primary care programs for homeless people. Results: Most of the programs presented a team-based approach, multidisciplinary and/or integrated care. They often proposed co-located services between somatic health services, mental health services and social support services. They also tried to answer to the specific needs of homeless people. Some characteristics of these programs were associated with significant positive outcomes: tailored primary care organizations, clinic orientation, multidisciplinary team-based models which included primary care physicians and clinic nurses, integration of social support, and engagement in the community’s health. Conclusions: Primary health care programs that aimed at taking care of the homeless people should emphasize a multidisciplinary approach and should consider an integrated (mental, somatic and social) care model.
Rapid Screening of Cadmium in Rice and Identification of Geographical Origins by Spectral Method
Authors: Li Fang , Wang Jihua , Xu Li , Wang Songxue , Zhou Minghui , Yin Jingwei , Lu Anxiang
Published: February 2018

The accuracy, repeatability and detection limits of the energy-dispersive X-ray fluorescence (XRF) spectrometer used in this study were tested to verify its suitability for rapid screening of cadmium in samples. Concentrations of cadmium in rice grain samples were tested by the XRF spectrometer. The results showed that the apparatus had good precision around the national limit value (0.2 mg/kg). Raman spectroscopy has been analyzed in the discrimination of rice grain samples from different geographical origins within China. Scanning time has been discussed in order to obtain better Raman features of rice samples. A total of 31 rice samples were analyzed. After spectral data pre-treatment, principal component analysis (PCA), K-means clustering (KMC), hierarchical clustering (HC) and support vector machine (SVM) were performed to discriminate origins of rice samples. The results showed that the geographical origins of rice could be classified using Raman spectroscopy combined with multivariate analysis.