bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimal feature selection for islanding detection in distributed generation
Authors: Chandak Sheetal , Mishra Manohar , Nayak Subrat , Rout Pravat Kumar
Published: August 2018

The integration of the distributed power generation into a distribution system comes with several system problems. One of the teething problems related to system protection is islanding detection. Various anti‐islanding techniques based on feature evaluation were proposed in the recent past. However, they overlook the need for justifying the selection of a particular detection feature among all the possible measures. In this study, a wrapper feature selection approach is proposed where a modified multi‐objective differential evolution algorithm is coupled with a kernel‐based extreme learning machine classifier. To select the optimum features, five standard objective functions have been considered, such as dependability, security, accuracy, F‐measure, and the number of features. About 1864 cases have been generated from the designed IEEE 13 bus system to extract the sensitive features. IEEE 1547 standards have been considered while designing and testing the IEEE 13 bus system against islanding. The selected optimal features detect the islanded condition decisively for both synchronous and inverter‐based distributed generators. The features also validate their performance under noisy environment accurately with lesser computational time.
Magnetic characterization and variability study of the magnetic SPB staroLupi
Authors: Buysschaert B. , Neiner C. , Martin A. J. , Oksala M. E. , Aerts C. , Tkachenko A. , Alecian E. ,   the MiMeS Collaboration
Published: August 2018

Thanks to large dedicated surveys, large-scale magnetic fields have been detected for about 10% of early-type stars. We aim to precisely characterize the large-scale magnetic field of the magnetic component of the wide binaryoLupi, by using high-resolution ESPaDOnS and HARPSpol spectropolarimetry to analyze the variability of the measured longitudinal magnetic field. In addition, we have investigated the periodic variability using space-based photometry collected with the BRITE-Constellation by means of iterative prewhitening. The rotational variability of the longitudinal magnetic field indicates a rotation periodProt = 2.95333(2) d and that the large-scale magnetic field is dipolar, but with a significant quadrupolar contribution. Strong differences in the strength of the measured magnetic field occur for various chemical elements as well as rotational modulation for Fe and Si absorption lines, suggesting a inhomogeneous surface distribution of chemical elements. Estimates of the geometry of the large-scale magnetic field indicatei = 27 ± 10°,β= 74−9+7°, and a polar field strength of at least 5.25 kG. The BRITE photometry reveals the rotation frequency and several of its harmonics, as well as two gravity mode pulsation frequencies. The high-amplitudeg-mode pulsation atf = 1.1057 d−1dominates the line-profile variability of the majority of the spectroscopic absorption lines. We do not find direct observational evidence of the secondary in the spectroscopy. Therefore, we attribute the pulsations and the large-scale magnetic field to the B5IV primary of theoLupi system, but we discuss the implications should the secondary contribute to or cause the observed variability.
The consequences of a nearby supernova on the early solar system
Authors: Portegies Zwart S. , Pelupessy I. , van Elteren A. , Wijnen T. P. G. , Lugaro M.
Published: August 2018

If the Sun was born in a relatively compact open cluster (half-mass radius ≲3 pc) with ≳103stars, it is quite likely that a massive (≳10M⊙) star was nearby when it exploded in a supernova. The repercussions of a supernova can be rather profound, and the current solar system may still bear the scars of this traumatic event. The truncation of the Kuiper belt and the tilt of the ecliptic plane with respect to the Sun’s rotation axis could represent such signatures. We simulated the effect of a nearby supernova on the young solar system using the Astrophysical Multipurpose Software Environment (AMUSE). Our calculations are realized in two subsequent steps in which we study the effect of the supernova irradiation on the circumstellar disk and the effect of the impact of the nuclear blast-wave which arrives a few decades later. We find that the blast wave of our adopted supernova exploding at a distance of 0.15–0.40 pc and at an angle of 35°–65° with respect to the angular-momentum axis of the circumsolar disk would induce a misalignment between the Sun’s equator and its disk to 5.°6 ± 1.°2, consistent with the current value. The blast of a supernova truncates the disk at a radius between 42 and 55 au, which is consistent with the current edge of the Kuiper belt. For the most favored parameters, the irradiation by the supernova as well as the blast wave heat the majority of the disk to ≳1200 K, which is sufficiently hot to melt chondrules in the circumstellar disk. The majority of the planetary system may have been affected by a nearby supernova. Some of its repercussions, such as truncation and tilting of the disk, may still be visible in the current planetary system topology. The amount of material from the supernova blast wave that is accreted by the circumstellar disk is too small by several orders of magnitude to explain the current abundance of the short-lived radionuclide26Al.
Drought resistance of Astragalus cicer and A. sulcatus at the initial stages of plants development
Authors: Kornievskaya Tatyana
Published: August 2018

The article considers laboratory evaluation methods of water stress influence on the initial stages of Astragalus cicer and A. sulcatus development by seeds ability to germinate in osmotic sucrose solutions, characteristics of radicles and depression of shoots growth processes induced by the solution osmotic pressure. Osmoregulatory characteristics of seeds are estimated. It was ascertained that the rise in solution osmotic pressure up to 2 atm leads to a twofold and fivefold decrease in seeds germinating capacity in A. cicer and A. sulcatus respectively. At the sucrose concentration level of 4 atm, seeds do not germinate at all. Strong concentrations of osmotic solutions cause the depression of shoots growth processes and the reduction of astragaluses dry biomass.
Comparative analysis of trypsin inhibitor activity in the wet and dry weight of leaves in representatives of Hedysarum L. in the foreststeppe of Western Siberia
Authors: Zhmud Elena , Kuban Irina , Emtseva Maria , Dorogina Olga
Published: August 2018

The trypsin inhibitor activity (TIA) in fresh leaves in Hedysarum alpinum L., H. flavescens Regel & Schmalh. and H. theinum Krasnob. in Central Siberian Botanical Garden Siberian Branch Russian Academy Science (CSBG SB RAS, in the foreststeppe of Western Siberia) was investigated in the vegetative phase of seasonal development. Trypsin inhibitors (PR-6 proteins) play the role of immunity factors, since under various influences on plants, the genes encoding the production of this group of substances are activated. They are synthesized in different plant organs, and are necessary for plant control with biotic and abiotic stresses. TIA in the species was characterized by low (< 20 mg/g dry weight) and medium (≥ 20 mg/g dry weight) values, as we identified. It was found that the TIA values vary at a high and very high degree when determining in fresh leaves, and in the study in dry leaf flour - to medium degree. The preservation of TIA values in the species in the dried leaves is shown. On the basis of this fact, the possibility of studying TIA in these species in dried leaves is justified.
Variación del clima de un Terroir y su consecuencia sobre la respuesta de la vid
Authors: Ferrer Milka , Echeverría Gerardo , Pereyra Gustavo , Salvarrey Julia , Arrillaga Leandro , Fourment Mercedes
Published: August 2018

El clima vitícola, un componente mayor del Terroir, fue identificado en la región sur del Uruguay: sequía moderada, templado cálido, noches templadas, sometido a la influencia de la brisa marina. En el período 1994-2016, se analizó el régimen térmico e hídrico y su influencia sobre el rendimiento, sanidad y composición de la uva, de viñedos comerciales de Tannat. ACP mostró 3 grupos de años:Grupo 1(húmedo), precipitaciones del ciclo del cultivo superiores a la media, sanidad limitante, acidez y rendimiento mayores a la media y azúcares inferiores, cosechas tardías.Grupo 2(cálido y seco), condiciones térmicas superiores al promedio y la componente hídrica por debajo, sanidad superior a la media, azúcares y acidez inferiores, cosechas adelantadas.Grupo 3(fresco, húmedo en primavera y seco en maduración), condiciones térmicas inferiores a la media, precipitaciones superiores a la media en brotación –cuajado e inferiores en el mes previo a cosecha, superiores a la media azúcares y tamaño de baya, cosecha atrasada. Se establecieron correlaciones entre las variables del clima, rendimiento y la calidad de la uva. En la serie de años estudiada, la variabilidad climática de la región fue muy marcada y la respuesta de Tannat acompañó dicha variabilidad.
Caracterización del terroir: influencia en la composición de la uva y relación con el NDVI dentro de la D.O.Ca.Rioja /Terroircharacterization: influence on grape composition and relationship with NDVI within D.O.Ca.Rioja
Authors: Martínez, a Álvaro , Gómez-Miguel Vicente D.
Published: August 2018

Los factores naturales que definen elterroirson los principales responsables de la variabilidad observada entre plantas de una misma parcela (variabilidad intraparcela) o de distintas fincas (variabilidad interparcelas). En el presente trabajo se propone una metodología de zonificación del terroir, presentándose también su relación con algunas características vegeto-productivas del viñedo y con el Índice de Vegetación de Diferencia Normalizada (NDVI). La zonificación de los elementos del medio se ha llevado a cabo a partir de la fotointerpretación aérea mientras que la representación gráfica del NDVI se realiza partiendo de una imagen multiespectral capturada por el satélite Pleiades, de 0,5 metros de resolución espacial. Comparando los datos vegeto-productivos recogidos en las 4 parcelas de estudio, se ha observado que existen sectores, relacionados con zonas de deposición de material y asociados a suelos de carácter fluvéntico, con tendencia a ser más vigorosos, más productivos y con uvas de menor contenido fenólico y de menor pH. Por otro lado, analizando cada parcela de manera independiente, se observa que la distribución espacial del NDVI sigue un patrón semejante a la zonificación de los elementos del medio, algo que recomendaría hacer un uso de este índice por sectores previamente discriminados conforme a una cierta uniformidad delterroir.
Spatial variability in climate, phenology, and fruit composition across a reference vineyard network in Southern Oregon
Authors: Jones Gregory V.
Published: August 2018

This paper provides a summary of observational data from a reference vineyard network in the Southern Oregon American Viticultural Area (AVA). The network was established to collect baseline data on spatial variations in temperature, grapevine phenology, and composition characteristics across a collection of varieties grown in the region. The results from the period 2003 through 2017 show a wide diversity of climate types for winegrape production ranging from relatively cool to relatively warm conditions (GST 14.8 to 17.5°C and GDD 1109 to 1657). One unique climate aspect is that the region experiences higher diurnal temperature ranges during the growing season than regions in Europe and many others in the western US. Grapevine phenological timing and intervals between events are similar to other wine regions with budbreak averaging 14-Apr, flowering 14-Jun, véraison 19-Aug. However, harvest dates are up to ten days to two weeks later than many regions in Europe. Ripening period and harvest composition observations reveal the diversity of potential varieties that the region can ripen. Over all varieties, sites and vintages observed harvest composition averages 23.7 °Brix, 6.4 g/L total acidity, a pH of 3.44, and yields of 2.7 tons/acre.
Zonificación de suelos vitícolas en Villanueva de Alcardete (Toledo, La Mancha, España) utilizando elementos traza.
Authors: Ángel Amorós a José , Bravo Sandra , Jesús García Navarro Francisco , Pérez-de-los-Reyes Francisco , Sánchez-Ormeño Francisco , Gracía-Pradas Jesús , Jiménez Ballesta Raimundo , Higueras Pablo
Published: August 2018

Se realiza un estudio de suelos en el término municipal de Villanueva de Alcardete (Toledo, España) con la finalidad de señalar zonas homogéneas para el cultivo del viñedo. Se practicaron 15 calicatas en lugares representativos y se realizaron análisis físico químicos y clasificaciones edafológicas. También se consultaron fuentes clásicas de información pero se apunta como novedosa herramienta para la zonificación la composición geoquímica de los suelos. Se determinaron para cada perfil 11 elementos mayoritarios (Al, Ca, Fe, K, Na, Mg, Mn, P, S, Si, Ti) y 27 elementos traza (As, Ba, Ce, Co, Cr, Cs, Cu, Ga, Hf, La, Mo, Nb, Nd, Ni, Pb, Rb, Sc, Sn, Sr, Ta, Th, U, V, W, Y, Zn, Zr). Una vez estudiadas las fuentes de información y los datos obtenidos, el mapa de distribución del Estroncio (Sr) representa bastante bien las distintas zonas de suelos del área estudiada y puede ser utilizado (con las debidas comprobaciones y correcciones) para establecer lotes de suelos homogéneos.
Linking viticultural climatic indices to grape phenology in the South Tyrolean Alps
Authors: Balotti Andrea , Tscholl Simon , Egarter Vigl Lukas
Published: August 2018

Climate indices based on heat accumulation, e.g. the Winkler index, are widely used to define the climatic niches for vines. In this study, we investigate how a combined use of high-resolution (25 m) climate index maps and phenology records from 30 vineyards in South Tyrol (in the Italian Alps) can help to (i) assess viticultural suitability across a mountainous landscape and (ii) estimate the timing of physiological processes of Pinot Noir development (ripening and must weight) at various sites across the region. First, the best interpolation method is chosen (from multiple linear regression (MLR), regression kriging or support vector regression) to create maps of climate indices averaged over the time period 1991-2010. Second, correlation is calculated between the timing of phenological stages of Pinot Noir for the year 2017 and various climate indicators, such as temperature-based indices (Winkler, Huglin, Biologically Active Degree Days, Cool Night, Fregoni) and average (GST), minimum and maximum temperature over the growing season. The MLR method is shown to yield the best interpolations of the climate indices across the complex terrain of the study area. The Winkler and GST indices correlate most precisely with the late-season phenological events of the study sites, and are thus the most predictive. These findings demonstrate the potential of climatic maps to effectively define suitable areas for grape growing and estimate ripening dates in South Tyrol.
Classification of Croatian winegrowing regions based on bioclimatic indices
Authors: Karoglan Marko , Telišman Prtenjak Maja , Šimon Silvio , Osrečak Mirela , Anić Marina , Karoglan Kontić Jasminka , Andabaka Željko , Tomaz Ivana , Grisogono Branko , Belušić Andreina , Marki Antun , Prša Željka , Omazić Branimir , Jelić Damjan , Vešenaj Željko , Vuéetić Višnjica , Počakal Damir , Vladimira Petric Ivana , Leder Renata , Prša Ivan
Published: August 2018

The aim of this work was to classifie vine growing regions of Croatia using bioclimatic indices. For the analysis of climatic conditions, linear trends of bioclimatic indices were determined using meteorological observations for all avaliable climatological stations located in vine growing regions of Croatia. Analysis were performed for two different climatological periods: 1961-1990 and 1988-2017. Four commonly used bioclimatic indices were determined: the Winkler index, the Huglin index, Cool night index and Growing season average temperature.
Estado hídrico y actividad fisiológica en cv. Cabernet Sauvignon: respuesta a la aplicación de distintas dosis de riego
Authors: Yuste,a Jesús , Vicente Alejandro , Martínez-Porro Daniel
Published: August 2018

La producción y la calidad de la uva en las zonas de clara escasez hídrica dependen del aporte de agua de riego. A lo largo del periodo 2012-2014 se estudió la respuesta hídrica y fisiológica a 3 tratamientos de régimen hídrico: secano (P0), riego del 25% ETo (P1) y riego del 50% ETo (P2), aplicado desde tamaño guisante hasta vendimia. El ensayo se llevó a cabo con cv. Cabernet Sauvignon sobre portainjerto 110R, plantado en 2004 y conducido en espaldera en cordón Royat bilateral, con marco de plantación de 2,2 m x 1,2 m, en Valladolid. La variación de dosis de riego generó valores notablemente menos negativos de potencial hídrico, así como valores de los parámetros básicos de intercambio gaseoso significativamente más altos, en el tratamiento regado con mayor dosis que en el de menor dosis, y a su vez en éste que en el no regado, tanto a las 9 como a las 12 hs. Las diferencias entre tratamientos fueron estadísticamente significativas en general, aunque se observaron algunas excepciones, más frecuentes entre el tratamiento regado con menor dosis y el no regado, que variaron en fecha, hora y parámetro fisiológico. La capacidad de discriminación entre tratamientos de riego a través del potencial hídrico se ve bien reflejada en la actividad fisiológica del viñedo, con una tendencia creciente segûn aumenta el aporte de agua, lo cual debe servir para orientar el riego del viñedo.
Parrel, vinífera aragonesa de la depresión del Ebro. Adaptación a terroir semiáridos de cultivo.
Authors: Franco Ernesto , Pavon Alberto , Gogorcena Yolanda , López Ricardo , Andreu Javier , Usón Jesús J. , Eva Herrero y
Published: August 2018

En el marco del proyecto VALOVITIS (Programa POCTEFA 2014-2020) de identificación y evaluación de variedades minoritarias en el Piedemonte Pirenaico, se está trabajando y sometiendo a estudio la variedad PARREL. Tras los resultados obtenidos en sucesivas campañas de vendimia y vinificación semi-industrial, la variedad Parrel destaca como una de las variedades autóctonas de la región de Aragón con mayor potencial para su posterior desarrollo comercial atendiendo a sus propiedades agronómicas, enológicas a su resistencia a enfermedades como el oídio y a su capacidad de adaptación a condiciones climáticas continentales caracterizadas por elevadas oscilaciones térmicas a lo largo del año.
An example of a vine-physiology based fine-scale terroir study in the AOC Lavaux-region in Switzerland
Authors: RIENTH Markus , LAMY Frederic , NOLL Dorothea , LORENZINI Fabrice , VIRET Olivier , ZUFFEREY Vivian
Published: August 2018

The aim of this ongoing study is to establish a vine physiology, berry quality - based methodology to analyze small scale differences between plots in a sub-region of the AOC Lavaux, in Switzerland. The production area Villette is almost to 100% planted with the cultivar Chasselas L. covering a total of 140 ha of steep slope terraced vineyards and offers an excellent site for terroir studies. A representative network of 23 plots covering the entire Villette production area was established in 2016 and 2017. Important differences in budburst and flowering were observed between plots whereas altitude was the main driver of precociousness. Expectedly most precious plots had highest sugar and lowest malic acid concentrations at final sampling date. Individual berry weight variation was up to 35 % at the last sampling (2.4 to 3.3 g) with variation in sugar concentration of 13 % (70-84° Oechsle). Sugar quantity per berry variation was however twice as high (26%), illustrating important differences in the sugar accumulation pattern between plots. Interestingly the latest plots accumulated highest sugar per berry with lowest concentration. The preliminary results of this ongoing study provide valuable information of the ripening potential of Chasselas in a small mesoclimate and illustrates the possibilities to characterize viticultural terroirs based on vine physiology measurements.
Radar Quantitative Precipitation Estimation improvement in Champagne vineyard.
Authors: PAUTHIER Basile , DEBUISSON Sébastien , DESCOTES Arnaud , PERGAUD Julien , MAILLARD Sylvain
Published: August 2018

Rainfall has a crucial importance in viticulture, especially in Champagne vineyards, where irrigation is prohibited. Rainfall directly influences the phytosanitary pressure, nitrogen mineralization, flowering conditions, parcel practicability, soil erosion etc… In these conditions, implementing a weather stations network is the solution that the Comité Champagne chose to monitor rainfall all over the Champagne appellation since the 1990's. This networks is actually composed of 42 weather stations implemented in order to have the best spatial coverage as possible. The Comité Champagne also obtain some weather stations data from Météo France, the French national weather service. Even with that network, capturing all rainfall events accurately is difficult, especially in convective cases. Therefore, the interest in radar data has increased, to capture rainfall everywhere. Some tests have been previously made with PANTHERE radar data from Météo France with a resolution of 1 km2, results were promising, but presented inaccuracies particularly in convective events. In this article, we use a radar merging technique similar to the ANTILOPE method from Météo France, with a higher resolution network. The tool employed is the Estimages toolbox merger, based on krigine with external drift (KED) which has been demonstrated to give good results in quantitative precipitation estimation (QPE) improvement.
Experimental setup for investigating the dynamics of the ascent of a cluster of bubbles in a liquid
Authors: Arkhipov Vladimir , Basalaev Sergey , Orlov Sergey , Polenchuk Sergey
Published: August 2018

There is a scheme of experimental setup providing preparation of the compact cluster of monodispersed bubbles of the given diameter presented in the work. Further, in this research we have calculated setup parameters that are necessary for preparation of the compact air bubble cluster in glycerin at room temperature.
Experimental study of a drop “evolution” under conditions of its free fall on a heated surface
Authors: Batishcseva Kseniya , Ponomarev Konstantin
Published: August 2018

Time dependences of distilled water drop diameter were obtained experimentally after its falling on a heated copper substrate from a height of 0.09 m. The temperature of the solid surface ( Tw ) varied from 333 to 413 K in steps of 20 K. The effect on the drop dynamics after falling and the maximum ratio of the spreading diameter to the drop diameter in flight ( βmax ) were determined.
Waterproofing practices in Australia for building construction
Authors: Sriravindrarajah Rasiah , Tran Elizebeth
Published: August 2018

Waterproofing is an essential component in building construction to maintain the integrity of buildings with reduced maintenance cost. A comprehensive waterproofing system is an integrated combination of factors, and includes product selection, membrane detail, substrate preparation, design, installation and maintenance. It is designed to work under different environmental conditions, substrates and applications. Proper understanding of the issues related to waterproofing membrane systems is important to minimise the waterproofing failures in both commercial and residential buildings. This paper aims to discuss Standards and Codes; membrane systems and performance, waterproofing practices, design and installation techniques, inspection and testing and quality assurance adopted by the waterproofing industry in Australia.
Repair of rigid pavement using micro concrete material
Authors: Jonbi Jonbi , Tjahjani A. R. Indra , Tinumbia Nuryani , Pattinaja A. M. , Haryono Bambang S.
Published: August 2018

Rapid setting materials, especially for concrete repairs made on major arteries such as toll roads which must withstand heavy traffic. Several manufacturers of construction chemicals have been producing various types of rapid setting materials designed for use in repairing such toll roads. However, the existing toll road repair materials have not demonstrated satisfactory performance when applied in the field. This study modified micro concrete materials by adding Polycarboxylate Ether (PCE) and Polypropylene Fiber (PPF) at the time of mixing existing rapid setting materials. It then tested flow tests and setting time at 16, 20, 30, 40, and 60 minutes, as well as compressive strength; and flexural strength tests at the ageing times of 3 hours, 1 day, and 7 days. The concrete micro material was applied directly in the field. The results show that micro concrete material is definitely suitable for toll road repair. The addition of PCE and PPF can increase the flexural strength and modulus of elasticity, meaning that the material is not easily cracked under the repeated strains of heavy traffic loads. Therefore, the use of this micro concrete material has been proven to be viable for future repairs of heavily trafficked toll roads.
Characterization and compressive strength of fly ash based-geopolymer paste
Authors: Widayanti Ari , Asih Aryani Soemitro Ria , Suprayitno Hitapriya , Jaya Ekaputri Januarti
Published: August 2018

Fly ash is a by-product obtained from coal combustion process. Some of the utilization of fly ash is to produce geopolymer products which have high compressive strength, fire, chemical resistance. This paper proposes fly ash from unit 1-7 Suralaya Power Plant Indonesia. The aims of this study are to obtain characterization of fly ash and mechanical properties of geopolymer paste based on variations of the alkali activator ratio. The method was based on previous research and laboratory investigation. XRF and compressive strength were analysed in this study. Alkali activator was obtained from NaOH and Na2SiO3 mixture. The ratio of Na2SiO3 to NaOH was in the range of 0.5-2.5. Geopolymer paste was casted in acrylic cylinders with a diameter of 2 cm and a height of 4 cm. The curing was conducted at room temperature until the day for the compressive strength test at 28 days. The result showed that the fly ash is classified as F class. Increasing the alkali activator ratio influenced the strength. The best composition of geopolymer paste is made with NaOH 8M, and the mass ratio of Na2SiO3 to NaOH is 2.5. This composition produced compressive strength of 98.6 MPa.
Survey, investigation and repairing on concrete wall of waste water treatment building
Authors: Simatupang Partogi H , Jonbi
Published: August 2018

Waste Water Treatment Building of the Multi National Company located in Cikande of Banten Province in Indonesia has experienced a poor function due to seepage and leakage on its reinforced concrete walls. The height of the reinforced concrete wall was 12 meters. This paper describes the surveys, investigations and repair conducted to overcome the seepage and leaks in the reinforced concrete walls. The feasibility of its concrete was investigated using Ultrasonic Pulse Velocity (UPV). The feasibility of the concrete was reviewed based on 2 (two) factors: (1) homogeneity and (2) crack depth. The result of the survey and investigation showed that the quality of homogeneity was enough and was pretty good and the average crack depth was about h = 102,5 mm. The method of repairing used was: (1) crack injection using epoxy, (2) leakage injection using cement modified polymer material and (2) waterproof coating using a cement-based coating. To prove the success of the repairing, pond testing was conducted for 14 days. Based on the test result, there was no leakage and seepage during the pond testing.
Effect of moisture content of cohesive subgrade soil
Authors: Zainorabidin Adnan , Hastari Agustina Dian
Published: August 2018

A good subgrade for road pavement is required to support the traffic load that passes through. The characteristics of the subgrade is determined by the stress-strain behaviour that is expressed as a resilient modulus. The performance of the pavement is affected by characteristics of the subgrade. Characteristics of clay soil generally have a low of bearing capacity, especially to support the load induced by the wheel load of vehicles. Clay soil is very sensitive to changes of temperature and moisture content. The changes of moisture content cause the changes on the subgrade‚s resilient modulus value. This paper studies the resilient modulus of the subgrade of clay soil by laboratory testing. To investigate the effect of moisture content, this testing is done on a dry side, OMC condition and wet side. The result shows the difference of the resilient modulus characteristic and deformation that is influenced by the moisture content.
Numerical modelling of dynamic stability of RCC dam
Authors: Mughieda Omer , Hazirbaba Kenan , Bani-Hani Khaldoon , Daoud Wassim
Published: August 2018

Stability and stress analyses are the most important elements that require rigorous consideration in design of a dam structure. In the current research, dynamic structural stability of a roller-compacted-concrete (RCC) dam was performed. The RCC dam was modeled using the finite element method to investigate the stability against sliding and the structural stability of the body of the dam. The commercially available finite element software (SAP 2000) was used to analyze stresses in the body of the dam and foundation. A linear finite element dynamic analysis was performed. Response spectrum and time history methods were used with different earthquake loads. The response spectrum of the 1995 Aqaba earthquake and a representative elastic-spectrum with smooth plateau for both Operating Basis Earthquake (OBE) and Maximum Credible Earthquake (MCE) were used in this study. The analysis was carried out assuming that no slip will occur at the interface between the dam and the foundation. The greatest tension was found to develop in the rock adjacent to the toe of the upstream slope. The factor of safety against sliding along the entire base of the dam was found to be greater than 1 (FS>1), for both loading conditions.
Study of geotechnical aspect base on GIS as basic design of road
Authors: Indrayani  , Hasan Arfan , Herius Andi , Mirza Ahmad
Published: August 2018

The determination road traces are the first step in road planning. Geotechnical aspects such as soil type, soil texture, peat soil, and CBR value should be considered during road planning so as to obtain the age of road services in accordance with the plan. At this time, GIS can be used in identifying the physical environmental conditions in the determination of road traces to increase time and cost efficiency. The suitability of the geotechnical aspects is determined using the scoring and weighting method. Each attribute is assigned a value with a range of values between 1 and 5. A score of 1 is given for the most suitable parameter, while a score of 5 is given if very unsuitable. The weights ratio of each criterion is 25% because each aspect has the same level of importance. Spatial analysis of the weighting result is done by the overlay method to obtain the geotechnical aspect appropriateness in determining road traces. The analysis results show that the lowest weights on the result of the overlay of the map is 2.25 which indicates that most of the area in Banyuasin Regency is “quite suitable” to be chosen as road traces.
Evaluation of urban freight transport operations in Surakarta city
Authors: Budi Yulianto
Published: August 2018

In an effort to monitor and control the urban freight transport, the Municipal Government of Surakarta City issue a dispensation license for freight vehicles through the inner-city road. Nevertheless, the facts indicate that traffic violations by freight vehicles against the provisions of existing regulations are relatively high and thus have the potential to decrease the level of safety, road service and environmental sustainability. This is due to the weakness of the system of monitoring and the control of urban freight transport is low both in terms of technicality and legality. The research’s aims are to evaluate and improve the current system of monitoring and control of urban freight transport related to the provision of the dispensation license for freight vehicles through the inner-city road in Surakarta City. The analysis results indicate that the percentage of unlicensed urban freight transport is significant in number, and no clarity is associated with licensing dispensation for urban freight transport weighing > 9,000 kg, a significant number of traffic violations, road bearing capacity of freight transport routes do not correspond to the vehicle weight. Various recommendations are proposed for improving the current system of monitoring and of the control of urban freight transport.
Performance analysis of Gilingan’s underpass development
Authors: Setiono  , Yulianto Budi
Published: August 2018

The annual increasing use of motorized vehicles requires improvements in infrastructure to support the reliability of urban transport systems in Surakarta City. The Government of Surakarta City has attempted to improve the infrastructure of the Gilingan Viaduct by creating an underpass. The traffic performance of the model developed is analysed using Indonesian Capacity Manual 1997 (IHCM 1997). The result shows that the development of the Gilingan Underpass has a potential to improve the performance of Jenderal Ahmad Yani road and the performance of the Balapan and Cengklik Intersections. The change of public transport routes of goods (freight) and people to Jenderal Ahmad Yani road has an opportunity to reduce acute congestion at the Joglo Intersection and decrease the accident rate in Monginsidi road.
Analysis of travel pattern and the need to develop sustainable transportation infrastructure in Sarbagita metropolitan area
Authors: Alit Suthanaya Putu
Published: August 2018

Denpasar city is the capital of Bali Province and has been developed into a metropolitan city. There has been an agglomeration of four regencies, namely Denpasar, Badung, Gianyar and Tabanan forming a Metropolitan Sarbagita area with a population close to 2 million inhabitants. With heightened population and activity, travel patterns are increasing and scattered. The development of land use in the Sarbagita Metropolitan area occurred rapidly and was not properly anticipated by the provision of adequate infrastructure. This study aims to examine the patterns of movement that occurs and projections for future conditions as a basis to develop a more sustainable transportation infrastructure. The data used are the origin-destination of people and goods, and statistical population data. The prediction method uses four-stages modeling with the help of Visum software and was validated based on the average daily traffic (ADT) data. The results of the study indicate that traffic accumulation occurs on most arterial and collector roads especially around Denpasar with a degree of saturation exceeding 1. To anticipate future population and increased activities, developing a mass public transport system, multi-mode system, ICT system, and limiting the ownership and use of private motor vehicles is necessary.
Evaluation of sediment management for two large reservoirs in Lombok island
Authors: Setiawan Ery , Hidayat Syamsul , Bagus Giri Putra Ida , Bagus Budianto Muhammad , Salehudin
Published: August 2018

Sedimentation is an important issue in reservoir rehabilitation and maintenance. This problem is worsened by seasonal water scarcity as a characteristic of arid catchments. Worldwide loss of storage capacity due to sedimentation is much higher than the increase of capacity by the construction of new reservoirs. Further, sedimentation hinders the safe operation of not only shallow reservoirs but also deep reservoirs by means of turbidity currents which sporadically transport large volumes of sediments down to the dams. This study analyses the real case of Pengga reservoir and Batujai reservoir located in Central Indonesia. Selected sediment management alternatives were analysed and evaluated based on technical, social and environmental criteria. Evaluation of sediment management alternatives was conducted by utilising the REServoir CONservation (RESCON) tool. Results showed that, first, both flushing techniques and hydrosuction are feasible whereas dredging and trucking are not. Secondly, the flushing technique outweighs the Hydrosuction Sediment Removal (HSRS) method. Thirdly, application of the HSRS method in both reservoirs shares one thing in common, i.e. it requires an appropriate combination of the number of suction pipes as well as minimum suction pipe diameters. Lastly, there are some differences in the details of implementation of the flushing technique to both reservoirs.
Evaluation of watershed carrying capacity for watershed management (a case study on Bodri watershed, Central Java, Indonesia)
Authors: Sriyana Ignatius
Published: August 2018

Excessive land use without any concern towards land and water conservation codes of conduct has a great potential to cause inevitable erosion and sedimentation, flood, drought, and decrease in vegetation coverage and accelerated land degradation, leading to change in watershed carrying capacity. This study aimed at evaluating the watershed classification, dealing with its carrying capacity, which is fundamental for planning in the watershed management. During the research, the author performed field surveys, questioner dissemination, and laboratory tests for suspended sediment quality. Data collected during the observation were subject to further analysis under five predetermined criteria. The study found that the Bodri Watershed carrying capacity was at 96.7, covering percentage of critical land, percentage of vegetation coverage, erosion index scored 10, respectively. The classification for the Bodri Watershed according to carrying capacity was considered moderate and classified as “to be improved” instead of “to be maintained”.
The impact of drainage towards roads in maintenance cost
Authors: Ismiyani Erna , Handayani Dewi , Hadiani RR. Rintis
Published: August 2018

An ideal road infrastructure has a low cost for maintenance and better performance of the roads and drainage systems. The disintegrated maintenance system between the roads and drainage is the major cause of an increasing road maintenance cost. Therefore, this research aimed to investigate the impact of drainage towards roads in maintenance cost. This paper is located in Surakarta which was divided into eight catchment areas. The main variables of this paper are cost maintenance of drainage and roads, which were analyzed using regression. These variable data were obtained from the total cost per year allocated by Surakarta City Government on the urban drainage and local road maintenance budget from 2013 to 2017. The results showed that low drainage maintenance cost tended to result in high road maintenance cost.
Service life planning for electronics, mechanical and electrical components of a hotel building
Authors: Kaming Peter F. , Maryani Desi , Boenardi Michael
Published: August 2018

A hotel building in Yogyakarta was studied for its service life planning of electronic, electrical, and mechanical components the building. The study aims to assess the service life of hotel buildings including its electronics, mechanical and electrical components, and estimating the service life of each of the components. Data was collected from practitioners working in building maintenance office of several hotels in Yogyakarta. The Data was carefully analysed using descriptive statistics. This paper discusses the approaches and application of the availability of reference service life and service period data can be collected and applied in life cycle costing. The results of service-life data for periodical maintenance and replacement for various electronics, both mechanical and electrical parts are also presented for life cycle planning.
Experimental study of the effects of wire EDM on the characteristics of ferritic steel, at a micro-scale on the contour cut surface
Authors: Naveed Nida
Published: August 2018

This study, on a micro-scale, of the WEDM cut surfaces of specimens to which the contour method of residual stress measurement is being applied provides detailed information about the effects of the cutting process on the surface quality. This is defined by a combination of several parameters: variation in surface contour profile, sub-surface damage and surface texture. Measurements were taken at the start, the middle and at the end of the cut. This study shows that during WEDM cutting, a thin layer, extending to a depth of a few micrometres below the surface of the cut, is transformed. This layer is known as the recast layer. Using controlled-depth etching and X-ray diffraction, it is shown that this induces an additional tensile residual stress, parallel to the plane of the cut surface. The WEDM cut surface and sub-surface characteristics are also shown to vary along the length of the cut. Moreover, these micro-scale changes were compared with macro-scale residual stress results and provides an indication of the point at which the changes occurred by cutting process can be significantly relative to the macro-scale residual stress in a specimen.
Notfallaufkommen in der Plastischen Chirurgie - Auswertung der Notfallvorstellungen einer Universitätsklinik für Plastische Chirurgie und
Handchirurgie
Authors: Alawi Seyed Arash , Werner Dennis , Könneker Sören , Achenbach Johannes , Vogt Peter M. , Jokuszies Andreas
Published: August 2018

Hintergrund Interdisziplinäre Notfallambulanzen in Deutschland mit plastisch- und handchirurgischer Fachabteilung erfahren ein zunehmendes
Patientenaufkommen. Dabei kann es in sogenannten „Stoßzeiten“ zu Kapazitätsüberschreitungen mit langen Wartezeiten und Verzug der Behandlung von dringlichen
Notfällen kommen. Vermeintlich als Notfall deklarierte Handverletzungen binden in nicht unerheblichem Ausmaße personelle und strukturelle Kapazitäten in der
Notfallversorgung. Auch für das Fach der Plastischen Chirurgie wird eine mehrheitlich unberechtigte Notfall-Vorstellung vermutet. Mit der Erhebung der Daten
erfolgt eine Analyse der Notfälle zum besseren Verständnis des erhöhten Patientenaufkommens mit dem Ziel, mögliche Lösungen für die Entlastung der
Notfallversorgung aufzuzeigen.

Methoden Es wurden alle Patientenvorstellungen in der interdisziplinären Notaufnahme der Medizinischen Hochschule Hannover, die der Klinik für Plastische,
Ästhetische, Hand- und Wiederherstellungschirurgie zugeordnet wurden, im Zeitraum von 2016–2017 retrospektiv ausgewertet. Dabei wurden die
Vorstellungsdiagnosen, die Wartezeiten, sowie die Verteilung der Vorstellungen über 24h an 7 Wochentagen ausgewertet. Weiterhin erfolgte die retrospektive
Analyse der medizinischen Rechtfertigung einer Notfallvorstellung und die Notwendigkeit einer stationären Aufnahme.

Ergebnisse Insgesamt stellten sich 2768 Patienten innerhalb eines Jahres in der Notfallambulanz vor. Das Durchschnittsalter betrug 40 Jahre (Median x̅ =
37 Jahre, männlich 59 %/weiblich 41 %). Gründe für die Vorstellung waren Verletzungen an der oberen Extremität mit Schnitt-/Sägeverletzungen (25 %,n = 697),
gefolgt von weiteren Traumata wie z.B. Riss-Quetschwunden und Bissverletzungen (22 %,n = 611) und Verbrennungen/Verätzungen (17 %,n = 477). Die Verteilung der
notfallmäßigen Vorstellungen über den Tagesverlauf zeigte ein Maximum zwischen 9:00–13:00 Uhr während über die Wochentage keine signifikanten Unterschiede
festzustellen waren. Von 2450 Patienten waren 69 % „berechtige“ Notfälle, die einer unmittelbaren Versorgung bedurften. In 24 % (n = 583) dieser Fälle erfolgte
die stationäre Aufnahme. Bei 45 % bestand nach der Primärversorgung keine Indikation zur stationären Aufnahme. Die Wartezeit für 2450 Patienten betrug im
Durchschnitt 2,23 h (median = 1,43 h).

Diskussion Die Etablierung vorangesetzter Selektierungsstrukturen mit Erstellung von Versorgungsgraden und der Ausbau von Portalpraxen ist notwendig, um
die Mehrheit der plastisch- und handchirurgischen Notfälle durch eine selektive Patientensteuerung in geeignete medizinische Einrichtungen weiterzuleiten.
Praxis der Telemedizin in Deutschland heute
Authors: Schenkel Johannes
Published: August 2018

Schon heute sind einige telemedizinische Verfahren wie die Teleradiologie oder die Versorgung von Schlaganfallpatienten abseits der Stroke-Units weit verbreitet. Auch Gesundheits-Apps dringen mit hoher Dynamik in die gesundheitliche Versorgung ein. Welche Entwicklungen auf dem Gebiet zu erwarten sind, welche Konsequenzen dies für die Praxis hat und was rechtlich beachtet werden muss, zeigt dieser Artikel.
50/50 Jubiläum DGPRÄC und HaMiPla
Authors: Giunta Riccardo E.
Published: August 2018

Liebe Leserinnen und Leser,

in diesem Jahr wird die Deutsche Gesellschaft der Plastischen, Rekonstruktiven und Ästhetischen Chirurgen (DGPRÄC) 50 Jahre alt. In meiner Doppelfunktion als
Herausgeber der vorliegenden Zeitschrift Handchirurgie Mikrochirurgie Plastische Chirurgie, die das wissenschaftliche Organ der DGPRÄC ist, und als derzeitiger
Präsident der DGPRÄC darf ich heute der Gesellschaft zu diesem Jubiläum gratulieren! Dies ist ganz besonders bemerkenswert, insofern sich auch die vorliegende
Zeitschrift aktuell in ihrem 50. Jahrgang befindet und wir damit in diesem Jahr gleichzeitig zwei 50-Jahre-Jubiläen feiern dürfen. Zum Jubiläumskongress in Bochum
zieren dementsprechend das Jubiläumslogo der Gesellschaft und das der Zeitschrift die Titelseite dieser Ausgabe.
Chiral Pyrophosphoric Acid Catalysts for the para-Selective and Enantioselective Aza-Friedel–Crafts Reaction of Phenols
Authors: Sakakura Akira , Hatano Manabu , Ishihara Kazuaki , Okamoto Haruka , Toh Kohei , Mochizuki Takuya , Nakatsuji Hidefumi
Published: August 2018

Chiral BINOL-derived pyrophosphoric acid catalysts were developed and used for the regio- and enantioselective aza-Friedel–Crafts reaction of phenols with aldimines. ortho/para-Directing phenols could react at the para-position selectively with moderate to good enantioselectivities. Moreover, the gram-scale transformation of a product into the key intermediate for the antifungal agent (R)-bifonazole was demonstrated.
Chloramine Salt Mediated Oxidative Halogenation of Terminal Alkynes with KI or NaBr: Practical Synthesis of 1-Bromoalkynes and 1-Iodoalkynes
Authors: Liu Peijun , Liu Xiaozu , Chen Guojun , Li Chenglong
Published: August 2018

A direct oxidative halogenation of terminal alkynes has been realized using chloramine-B as the oxidant and KI or NaBr as the halogen source. This reaction enables a general and practical access to synthetically valuable 1-bromoalkynes and 1-iodoalkynes in good to excellent yields under mild reaction conditions.
Dedicated CT and MRI Techniques for the Evaluation of the Postoperative Knee
Authors: Khodarahmi Iman , Fishman Elliot , Fritz Jan
Published: August 2018

Advances in surgical techniques, orthopaedic implant design, and higher demands for improved functionality of the aging population have resulted in a high prevalence of patients with metallic implants about the knee. Total knee arthroplasty, knee-replacing tumor prostheses, and osteosynthesis implants create various imaging artifacts and pose special challenges for the imaging evaluation with computed tomography (CT) and magnetic resonance imaging (MRI). CT artifacts can be effectively mitigated with metal artifact reduction reconstruction algorithms, dual-energy data acquisition with virtual monoenergetic extrapolation, and three-dimensional postprocessing techniques, such as volume and cinematic rendering. Artifacts related to metal implants on MRI can be reduced via optimization of the scan parameters and using advanced techniques such as multi-acquisition variable-resonance image combination, and slice encoding for metal artifact correction.