bluuebunny/crossref_metadata_2025_split huggingface dataset:
Purwarupa Sistem Penggabungan Foto Udara Pada UAV Menggunakan Algoritma Surf (Speeded-Up Robust Features)
Authors: Dewanti Farida , Sumiharto Raden 
Published: January 2017

Abstrak Purwarupa penggabungan foto udara pada UAV menggunakan algoritma SURF merupakan suatu sistem yang dirancang untuk melakukan penggabungan citra. Citra tersebut adalah citra yang dihasilkan fixed-wings UAV. Keluaran dari sistem ini berupa tampilan citra dengan objek yang lebih luas. Sistem ini dirancang untuk dapat melakukan penggabungan foto udara dengan menggunakan algoritma SURF, FLANN, RANSAC, dan warpPerspective. Algoritma SURF digunakan sebagai detektor keypoint dari masing-masing input foto. Metode FLANN untuk melakukan pencocokan keypoint yang ditemukan. RANSAC digunakan untuk pencarian matrix homography. Metode warpPerspective digunakan untuk penggabungan kedua input yang memiliki kecocokan keypoint. Pengujian terdiri dari beberapa jenis variasi antara lain variasi minimal perpotongan, variasi skala dan variasi rotasi. Variasi minimal perpotongan yang menghasilkan nilai minimal perpotongan sebesar 15% dan jumlah minimal keypoint berkesesuaian antar kedua citra yang dapat digabungkan adalah 5. Variasi rotasi untuk berapapun perbedaan sudut antara kedua citra tetap dapat digabungkan. Variasi skala minimal citra yang dapat digabungkan adalah skala citra yang diperkecil hingga 75% dari ukuran citra aslinya, dan skala citra yang diperbesar hingga 600% dari ukuran aslinya untuk maksimal variasi perbesaran skala. Kata kunci—Foto udara, Penggabungan gambar, SURF, FLANN, RANSAC AbstractPrototype of stitching aerial photograph UAV using SURF algorithm is a system that is designed to stitch the image. The image is generated imagery UAV fixed-wings. The output of this system is a display image with a wider object. This system is designed to be able to merge aerial images by using SURF algorithm, Flann, RANSAC, and warpPerspective. SURF algorithm is used as a keypoint detector from each of the input images. Flann method to perform keypoint matching is found. RANSAC homography matrix used for the search. WarpPerspective method used for merging the two inputs that have a match keypoint. The test consists of several types of variations such as the intersection of the minimal variation, variation in scale and rotation variations. Variation that produces intersection minimum value of 15% and a minimum number of keypoint accords between the two images can be combined is 5. Variation of rotation to any angle difference between the two images can still be combined. Minimum scale variations which can be combined image is the image scale is reduced to 75% of the size of the original image, and the image scale is enlarged to 600% of its original size to a maximum variation of magnification scale. Keywords—Aerial Photograph, Stitching Images, SURF, FLANN, RANSAC
Sistem Pengukur Kecepatan Kendaraan Berbasis Pengolahan Video
Authors: Sadewo Satrio Sani , Sumiharto Raden , Candradewi Ika 
Published: January 2017

AbstrakSistem pengukur kecepatan kendaraan berbasis pengolahan video ini merupakan salah satu sistem yang memanfaatkan sistem pengolahan citra digital sebagai pendeteksi kendaraan dan mengukur kecepatannya. Metode yang digunakan dalam sistem ini adalah background subtraction dengan algoritma Gaussian Mixture Model (GMM). Background subtraction akan memisahkan antara background dengan objek yang dideteksi, yaitu kendaraan. Koordinat titik tengah objek dijadikan sebagai nilai perpindahan objek dalam satuan piksel. Jarak sesungguhnya diukur dalam satuan meter. Jarak pada citra dibatasi dengan region of interest (ROI) sebesar 160 piksel. Setelah diperoleh waktu perpindahan tiap pikselnya maka nilai piksel/detik dikonversikan menjadi km/jam.Uji coba sistem dilakukan pada validasi kecepatan, pengukuran kecepatan, dan pengaruh intensitas cahaya. Proses validasi kecepatan menggunakan nilai kecepatan rata-rata 3 frame awal sebagai acuan untuk pengukuran kecepatan di frame berikutnya. Akurasi nilai kecepatan rata-rata 3 frame awal ini memberikan persentase eror 1,92 % - 15,75 % sedangkan ketika validasi tersebut dilakukan pada pembacaan keseluruhan frame video menghasilkan rentang eror 1,21 % - 21,37 %. Sistem bekerja dengan baik pada kondisi pagi, siang, dan sore hari dengan rentang intensitas cahaya 600-1900 lux, sedangkan pada malam hari dengan rentang intensitas cahaya 0-5 lux, sistem tidak bisa bekerja dengan baik. Kata kunci— pengolahan video, pengukuran kecepatan, background subtraction, gaussian mixture model, region of interest AbstractThis system is implemented by digital image processing to detect the objects and measure the speed. This system using background subtraction method with Gaussian Mixture Model (GMM) algorithm. Background subtraction will separate background and detected objects. Coordinates of the objects midpoint used as the the object moving value in pixel. The actual distance also measured in meters where the distance is limited by region of interest (ROI). The ROI is 160 pixel. Having obtained the moving objects time from previous frame to current frame so the value of pixel/s can converted to km/h.System testing the measurement validation, calculate the speed after being validated, and the influence of light intensity. The speed validation process uses average speed of early three frames speed as the reference for the speed measurement in the next frame. The average speed accuracy of 3 frames early gives a percentage error about 1,92% - 15,75%. When validation is performed on the entire reading frame of video, it produces an error range 1,21% - 21,37%. The system works well in the morning, afternoon, and evening conditions with light intensity about 600-1900 lux. While at night with 0-5 lux light intensity range, the system can’t work properly. Keywords— video processing, speed measurement, background subtraction, gaussian mixture model, region of interest
Penerapan Sistem Kendali PID pada Antena Pendeteksi Koordinat Posisi UAV
Authors: Nugraha Mahendra Budi , Sumiharto Raden 
Published: January 2017

AbstrakPada penelitian ini telah diterapkan sebuah sistem kendali Proporsional-Integral-Derivatif (PID) pada antena pendeteksi koordinat posisi pesawat udara tanpa awak. Sistem kendali PID pada antena pendeteksi digunakan pada kendali gerak horizontal dan vertikal. Nilai acuan kendali PID untuk gerak horizontal adalah sudut azimuth antara antena dan UAV. Sudut tersebut didapatkan dari metode azimuth antara dua buah titik koordinat. Nilai acuan kendali PID untuk gerak vertikal adalah sudut elevasi yang didapat dari metode Haversine Formula dan Sinus Trigonemetri antara jarak dua titik koordinat terhadap ketinggian UAV. Metode tuning PID yang digunakan untuk memperoleh konstanta pengendali PID adalah metode Ziegler-Nichols dengan metode osilasi dan tabel penalaran sistem kendali Ziegler-Nichols.Hasil yang diperoleh dari penelitian ini berupa penerapan sistem kendali PID berdasarkan metode Ziegler-Nichols. Sistem kendali berdasarkan tabel penalaran Ziegler-Nichols divariasikan tiga jenis sistem kendali yaitu P, PI, dan PID. Sistem kendali PD juga diterapkan berdasarkan tabel penalaran Ziegler-Nichols dengan pengendali integral diatur bernilai 0. Sistem kendali yang memiliki respon paling baik adalah sistem kendali PD dengan nilai Kp = 11,375 dan Kd = 0,372531 untuk kendali azimuth sedangkan kendali elevasi pada nilai Kp = 3,41 dan Kd = 0,111464. Respon yang dihasilkan kendali azimuth sebesar 0,32 detik dan kendali elevasi sebesar 0,34 detik. Kata kunci—PID, Antena Pendeteksi, Servo, UAV Abstract In this project has been implemented a PID control system on antenna tracker of unmanned aerial vehicle coordinates. PID control system on antena tracker to be used on horizontal and vertikal motion control. The setpoint of PID controller for horizontal motion is azimuth’s angle between antenna and UAV. The angle produced by azimuth’s method between two coordinates. The setpoint of PID controller for vertical motion is elevasi’s angle that produced by haversine-formula’s method and Sinus Trigonometry between distance two coordinates toward altitude of UAV. Tuning of PID controller was calculated by Ziegler-Nichols’s method with oscillation’s method and reasoning table of Ziegler-Nichols.The result from this project is implementation PID control system with Ziegler-Nichols’s method. There ara 3 variations in Ziegler-Nichols’s table, that are P, PI, and PID control system. The PD control system also implemented with integral’s control set on 0. The control system that has a good response is PD control system with Kp = 11,375 and Kd = 0,372531 on azimuth’s control whereas elevasi’s control with Kp = 3,41 and Kd = 0,111464. Response that produced by azimuth’s control is 0,32 second and elevasi’s control is 0,34 second. Keywords—PID, Antenna Tracker, Servo, UAV
Democracia no fio da navalha: limites e possibilidades para a implementação de uma agenda de Reforma Urbana no Brasil
Authors: Rolnik Raquel 
Published: January 2017

Os anos 1990 representaram no Brasil avanços institucionais no campo do Direito à Moradia e à Cidade, com a incorporação à Constituição do país, em 1988, dos princípios da função social da cidade e da propriedade, do reconhecimento dos direitos de posse dos moradores dos assentamentos urbanos informais e da participação direta dos cidadãos nos processos decisórios sobre a política urbana. Estas proposições constituem os pilares da agendada Reforma Urbana, que, a partir da criação do Ministério das Cidades no governo Lula, penetra no âmbito do Executivo federal. O artigo avalia os limites e possibilidades de implementação desta agenda através da trajetória de duas políticas propostas pelo Ministério – o Conselho Nacional das Cidades e a campanha pelos Planos Diretores Participativos – centrando a análise na organização do Estado na área do desenvolvimento urbano em sua relação como sistema político e as características da democracia brasileira. Palavras-chave: planejamento participativo; política urbana; democracia. Abstract: In Brazil the nineties represented years of institutional achievements in the field of housing and urban rights, since the 1988 Constitution, which included the principles of social function of cities and properties, the recognition of tenure rights for slum dwellers and the direct participation of citizens in the decision making process of urban policies. Those propositions have been the pillars of the Urban Reform agenda, which had penetrated into the national governments scope since the creation of the Ministry of Cities, under Lula’s administration. This article evaluates the limits and possibilities for the implementation of this agenda through the analysis of two policies proposed by the Ministry: the National Council of the Cities and the Campaign for Participatory Master Plans. The approach is centered in the organization of Brazilian State in the sector of urban development, in its relationship with the political system and the features of the country’s democracy. Keywords: participatory planning; urban policy; democracy.
Disease Characteristics and Rheumatoid Arthritis Development in Patients with Early Undifferentiated Arthritis: A 2-year Followup Study
Authors: Brinkmann Gina H. , Norli Ellen S. , Kvien Tore K. , Haugen Anne J. , Grøvle Lars , Nygaard Halvor , Bjørneboe Olav , Thunem Cathrine , Mjaavatten Maria D. , Lie Elisabeth 
Published: January 2017

Objective.To examine the 2-year disease course in patients with undifferentiated arthritis (UA) focusing on fulfillment of the 2010 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) rheumatoid arthritis (RA) classification criteria.Methods.Data were provided by the Norwegian Very Early Arthritis Clinic study, which included patients presenting with ≥ 1 swollen joint of ≤ 16 weeks’ duration. UA was defined as patients not fulfilling the 2010 ACR/EULAR RA criteria and who did not have a clinical diagnosis other than RA at baseline. The main outcome was fulfillment of the 2010 RA criteria. Secondary outcomes were disease-modifying antirheumatic drug (DMARD) use, resolution of synovitis without use of DMARD during followup, and final clinical diagnosis.Results.We included 477 patients with UA of whom 47 fulfilled the 2010 ACR/EULAR RA criteria during followup (UA-RA) and 430 did not (UA–non-RA). Of the UA-RA patients, 70% fulfilled the criteria within the first 6 months. UA-RA patients were older, more often positive for rheumatoid factor and anticitrullinated protein antibodies, female, and ever smokers, and they more often presented with polyarticular arthritis, small joint involvement, and a swollen shoulder joint. During followup, 53% of UA-RA patients vs 13% of UA-non-RA patients used DMARD (p < 0.001). Overall, 71% of patients with UA achieved absence of clinical synovitis at final followup without use of DMARD. The most frequent final clinical diagnosis was UA (61%).Conclusion.Only 9.8% of patients with UA fulfilled the 2010 RA criteria during 2-year followup. Small joint involvement and swollen shoulder joint were among the factors associated with RA development. In two-thirds of patients with UA, the arthritis resolved without use of DMARD.
Credit concession through credit scoring: Analysis and application proposal
Authors: Amat Oriol , Manini Raffaele , Antón Renart Marcos 
Published: January 2017

Purpose: The study herein develops and tests a credit scoring model which can help financial institutions in assessing credit requests. Design/methodology/approach: The empirical study has the objective of answering two questions: (1) Which ratios better discriminate the companies based on their being solvent or insolvent? and (2) What is the relative importance of these ratios? To do this, several statistical techniques with a multifactorial focus have been used (Multivariate Analysis of Variance, Linear Discriminant Analysis, Logit and Probit Models). Several samples of companies have been used in order to obtain and to test the model. Findings: Through the application of several statistical techniques, the credit scoring model has been proved to be effective in discriminating between good and bad creditors. Research limitations: This study focuses on manufacturing, commercial and services companies of all sizes in Spain; Therefore, the conclusions may differ for other geographical locations.Practical implications: Because credit is one of the main drivers of growth, a solid credit scoring model can help financial institutions assessing to whom to grant credit and to whom not to grant credit.Social implications: Because of the growing importance of credit for our society and the fear of granting it due to the latest financial turmoil, a solid credit scoring model can strengthen the trust toward the financial institutions assessment’s. Originality/value: There is already a stream of literature related to credit scoring. However, this paper focuses on Spanish firms and proves the results of our model based on real data. The application of the model to detect the probability of default in loans is original.
Modulation of Naive CD8 T Cell Response Features by Ligand Density, Affinity, and Continued Signaling via Internalized TCRs
Authors: Balyan Renu , Gund Rupali , Ebenezer Chitra , Khalsa Jasneet Kaur , Verghese Divya Anna , Krishnamurthy Thyagarajan , George Anna , Bal Vineeta , Rath Satyajit , Chaudhry Ashutosh 
Published: January 2017

Abstract
T cell response magnitudes increase with increasing antigenic dosage. However, it is unclear whether ligand density only modulates the proportions of responding ligand-specific T cells or also alters responses at the single cell level. Using brief (3 h) exposure of TCR-transgenic mouse CD8 T cells in vitro to varying densities of cognate peptide-MHC ligand followed by ligand-free culture in IL-2, we found that ligand density determined the frequencies of responding cells but not the expression levels of the early activation marker molecule, CD69. Cells with low glucose uptake capacity and low protein synthesis rates were less ligand-sensitive, implicating metabolic competence in the response heterogeneity of CD8 T cell populations. Although most responding cells proliferated, ligand density was associated with time of entry into proliferation and with the extent of cell surface TCR downmodulation. TCR internalization was associated, regardless of the ligand density, with rapidity of c-myc induction, loss of the cell cycle inhibitor p27kip1, metabolic reprogramming, and cell cycle entry. A low affinity peptide ligand behaved, regardless of ligand density, like a low density, high affinity ligand in all these parameters. Inhibition of signaling after ligand exposure selectively delayed proliferation in cells with internalized TCRs. Finally, internalized TCRs continued to signal and genetic modification of TCR internalization and trafficking altered the duration of signaling in a T cell hybridoma. Together, our findings indicate that heterogeneity among responding CD8 T cell populations in their ability to respond to TCR-mediated stimulation and internalize TCRs mediates detection of ligand density or affinity, contributing to graded response magnitudes.
Diet-Derived Short Chain Fatty Acids Stimulate Intestinal Epithelial Cells To Induce Mucosal Tolerogenic Dendritic Cells
Authors: Goverse Gera , Molenaar Rosalie , Macia Laurence , Tan Jian , Erkelens Martje N. , Konijn Tanja , Knippenberg Marlene , Cook Emma C. L. , Hanekamp Diana , Veldhoen Marc , Hartog Anita , Roeselers Guus , Mackay Charles R. , Mebius Reina E. 
Published: January 2017

Abstract
The gastrointestinal tract is continuously exposed to many environmental factors that influence intestinal epithelial cells and the underlying mucosal immune system. In this article, we demonstrate that dietary fiber and short chain fatty acids (SCFAs) induced the expression of the vitamin A–converting enzyme RALDH1 in intestinal epithelial cells in vivo and in vitro, respectively. Furthermore, our data showed that the expression levels of RALDH1 in small intestinal epithelial cells correlated with the activity of vitamin A–converting enzymes in mesenteric lymph node dendritic cells, along with increased numbers of intestinal regulatory T cells and a higher production of luminal IgA. Moreover, we show that the consumption of dietary fiber can alter the composition of SCFA-producing microbiota and SCFA production in the small intestines. In conclusion, our data illustrate that dietary adjustments affect small intestinal epithelial cells and can be used to modulate the mucosal immune system.
Internet Traffic Surveillance & Network Monitoring in India: Case Study of NETRA
Authors: Gupta Rajan , Muttoo Sunil Kumar 
Published: January 2017

Internet traffic surveillance is gaining importance in today’s digital world. Lots of international agencies are putting in efforts to monitor the network around their countries to see suspicious activities and illegal or illegitimate transmission of messages. India, being a center of attraction for terrorist activities, is also working towards the development of such surveillance systems. NETRA or Network Traffic Analysis is one such effort being taken by the Indian Government to filter suspicious keywords from messages in the network. But is it good enough to be used at the highest level for security analysis or does the system design needs to be improved as compared to other similar systems around the world; this question is answered through this study. The comparison of NETRA is done against Dish Fire, Prism, and Echelon. The design of the NETRA scheme and implementation level analysis of the system shows few weaknesses like limited memory options, limited channels for monitoring, pre-set filters, ignoring big data demands, security concerns, social values breach and ignoring ethical issues. These can be covered through alternate options which can improve the existing system. The Inclusion of self-similarity models, Self-Configuring Network Monitoring, and smart monitoring through early intrusion detections can be embedded in the architecture of existing surveillance system to give it more depth and make it more robust.
Quantification of Whey Protein Content in Infant Formulas by Sodium Dodecyl Sulfate-Capillary Gel Electrophoresis (SDS-CGE): Single-Laboratory Validation, First Action 2016.15
Authors: Feng Ping , Fuerer Christophe , McMahon Adrienne 
Published: January 2017

Abstract
Protein separation by sodium dodecyl sulfate-capillary gel electrophoresis, followed by UV absorption at 220 nm, allows for the quantification of major proteins in raw milk. In processed dairy samples such as skim milk powder (SMP) and infant formulas, signals from individual proteins are less resolved, but caseins still migrate as one family between two groups of whey proteins. In the first group, α-lactalbumin and β-lactoglobulin migrate as two distinct peaks. Lactosylated adducts show delayed migration times and interfere with peak separation, but both native and modified forms as well as other low-MW whey proteins still elute before the caseins. The second group contains high-MW whey proteins (including bovine serum albumin, lactoferrin, and immunoglobulins) and elutes after the caseins. Caseins and whey proteins can thus be considered two distinct nonoverlapping families whose ratio can be established based on integrated areas without the need for a calibration curve. Because mass-to-area response factors for whey proteins and caseins are different, an area correction factor was determined from experimental measurement using SMP. Method performance assessed on five infant formulas showed RSDs of 0.2–1.2% (within day) and 0.5–1.1% (multiple days), with average recoveries between 97.4 and 106.4% of added whey protein. Forty-three different infant formulas and milk powders were analyzed. Of the 41 samples with manufacturer claims, the measured whey protein content was in close agreement with declared values, falling within 5% of the declared value in 76% of samples and within 10% in 95% of samples.
Learning in Online Continuing Professional Development: An Institutionalist View on the Personal Learning Environment
Authors: Johnson Mark William , Prescott Denise , Lyon Sarah 
Published: January 2017

Abstract
The nature of institutions is an important question for the Personal Learning Environment (PLE). Whilst the PLE has tended to focus on what is considered to be “non-institutional” technology like social software, most online tools today have a corporate/institutional foundation. How should educators position themselves with learners who have to negotiate different institutional and discursive contexts – whether within corporate social software, formal education, work or the family? Drawing on previous work focusing on how learners maintain personal coherence in organising learning between different contexts, institutional theory is used to revise the model of the learner as a ‘viable system’, which focuses on the dynamics of transactions that learners make with different institutional entities. Data from an online Continuing Professional Development (CPD) course in acute cancer care is analysed to show how learner transactions indicate constraints bearing upon learners both from their professional context and from their formal educational study. The pattern of learner engagement suggests that the interaction of constraints creates the conditions to motivate in-depth contribution to the course forums. This finding leads us to suggest a rethink of pedagogy within the PLE, and a broader consideration of institutional and other constraints in educational dynamics.