bluuebunny/crossref_metadata_2025 huggingface dataset:
Description of loading and hauling operations at Luscar Mine
Authors: Srajer V
Published: November 2018

In this report, the Luscar Mine loading and hauling operations, mining practices and equipment used in coaling and waste removal operations are described. Loading and hauling logic diagrams were developed to identify the events, such as loading, dumping, fueling,
maintenance procedures, etc. The variables of truck assignments in multiple pit operation are explained and discussed and maintenance policies are evaluated and summarized. Mine equipment performance values obtained from the site personnel are categorized and summarized. The data collected in the
field and listed in this report were used to develop and validate the computer based model of loading and hauling operations.
Description of loading and hauling operations at Gregg River Mine
Authors: Srajer V
Published: November 2018

yes
The vehicle monitoring system at Widco Mine
Authors: Srajer V
Published: November 2018

The WIDCO mine in Centralia, Washington was visited in July 1986. This report describes the mining system and Vehicle Monitoring System. The mining system is unique in this part of country, using bucket wheel excavator to remove overburden and shiftable conveyors
to transport coal and waste material. The unique specially designed Stacker/Spreader machine unit is one of a kind. The Vehicle Monitoring System was installed at the mine on two trucks and tested for one year. The system proved to be a useful maintenance and operations tool and further units were
purchased. The visit to the mine provided insight into the plan and procedures needed before a new system is introduced at a mine. The experience will be used during the similar test planned by CANMET and Gregg River Resources mine at their operations near Hinton, Alberta.
Determination of stresses in the solid by means of a hollow inclusion
Authors: May A N , Wane M T
Published: November 2018

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Organization of mining research in Europe
Authors: Brown A
Published: November 2018

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Design of instrumentation for the measurement of time-dependent strain in stressed rock specimens
Authors: Hardy H R
Published: November 2018

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Investigations of the applicability of magnetic resonance imaging methods to CANMET's research interests part one: theory and applications
Authors: MacConnachie C A
Published: November 2018

This report describes the current status of WRC's investigations into the feasibility of the application of magnetic resonance imaging and NMR microscopy to CANMET's current research activities. It briefly outlines the principles of NMR imaging and discusses the
results of the experiments conducted to date. The facilities used for these preliminary investigations at Petroleum Recovery Institute (PRI) and University of British Columbia (UBC) are described. The results of these experiments in the context of the future applicability of the technique to WRC's
research interests is addressed. In this report, the terms MRI (magnetic resonance imaging) or NMR imaging and NMR microscopy are used somewhat interchangeably, although in the strictest sense MRI is a macro technique whereas NMR microscopy refers to magnetic resonance imaging at the microscopic
level.
Froth handling technologies. part 1: froth washing and the partition of solids and water
Authors: Lam W W , Flint K , Munoz V A , Kasperski K L , Payette C , Mikula R J
Published: November 2018

Improved froth handling technologies in primary and secondary oil sands flotation are important, especially as new extraction technologies for future projects may require the operation to be carried out at lower temperatures. One approach to reducing the ratio of
solids or minerals to bitumen in "dirty" froth is by intimately contacting or washing it with clean water. The solids may be either oil-wet, water-wet, or bi-wet; their partitioning in the flotation vessel is determined by their wettability. In addition, the water chemistry can be studied by 180 and
2H isotopes to determine whether the water found in oil emulsions during various processing stages originates from the oil sands feed, the conditioning step, or the flood water addition and subsequent froth handling. Froth washing results indicated that a small amount of solids (-8%) remained in
the froth. The solids wettability may be probed by direct microscopy or calorimetry. Finally, the preliminary isotope study shows promising results in determining the origin of the water in oil sands processing emulsions.
Rheological properties of Syncrude mature fine tails
Authors: Zrobok R
Published: November 2018

A short experimental program was set up between CANMET and HBT Agra, consulting engineers to Syncrude Canada Ltd. (SCL), to investigate the rheological proper-ties of SCL mature fine tailings (MFT) relevant to the design of fluid retention structures for
containment of fine tails from the Mildred Lake tailings pond. Rheological properties of a recent SOL MFT sample were investigated and time-dependent properties were measured after 54 hours. Increases in Bingham yield stress values ranging from 4.2 Pa to 7.9 Pa were observed after 54 hours, nearly a
twofold increase. Investigations at constant shear rates were performed to observe evidence of thixotropic gain in strength which would provide an added margin of safety for the analysis of flow of MFT through potential cracks in the containment structures. Based on preliminary calculations by HBT
Agra, tests were performed at constant shear rate 0.1 and 23 s-1. Comparison of constant shear rate results at constant shear rates of 0.1 s-1 and 20-1 indicate the likelihood of flow occurring at 20 s-1 and increases in shear stress and 20 s values at 0.1 s-1 , which approach those values obtained
for the sample which was left to sit for 54 hours. These unique flow properties of SOL MFT should be taken into account when designing fluid retention dykes.
The rheological determination of aggregate structure: a review of recent literature
Authors: Friesen W I
Published: November 2018

The physics of aggregate formation and structure has attracted a great deal of interest in recent years, in part because of the manifestation of fractal structure in aggregates. Rheology is an important tool for probing the structure of suspensions and new
theoretical developments have incorporated the fractal theory into the interpretation of experimental results. This report presents an overview of the recent literature dealing with the rheology of suspensions, including continuous space-filling networks and finite-sized
flocs.
A spectrometric study of the attenuation in air of gamma rays from mineral sources
Authors: Gregory A F
Published: November 2018

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Gender differences in academic achievement of children with developmental coordination disorder
Authors: De Waal Elna , Pienaar Anita E. , Coetzee Dané
Published: November 2018

Background: Developmental coordination disorder (DCD) has a negative impact on everyday activities and academic achievement in children, mainly owing to similar underlying motor and cognitive constructs. Academic achievement of boys and girls seems to be different, with boys being more prone to academic backlogs, especially in language-related areas.Aim: This study investigated if boys with DCD displayed more academic problems than girls with DCD.Setting: Ten-year-old children (N = 221, ±0.41) from different economic backgrounds were randomly selected for assessment as part of the NW-CHILD (North-West Child Health, Integrated with Learning and Development) longitudinal study in the North West Province of South Africa.Methods: The Movement Assessment Battery for Children, Second Edition, was used to determine DCD status in the group. The results of the Annual National Assessment and the mid-year June exam, which included six learning areas, were used to analyse academic differences between typically developing boys and girls and those who were identified with DCD (seven boys, seven girls). Independent t-testing and Mann–Whitney non-parametric tests were used to determine differences between boys and girls.Results: Boys with DCD had inferior literacy and numeracy skills, significantly poorer manual dexterity and balancing skills and also displayed statistically and large practically significant weaker mid-year grade point averages than girls. Children with DCD also portrayed poorer academic achievement than typically developing children.Conclusion: Significant differences in balancing skills and in languages between boys and girls with DCD might have contributed to the practically significant poorer maths performance of boys.
The Primitive Spectrum and Category for the Periplectic Lie Superalgebra
Authors: Chen Chih-Whi , Coulembier Kevin
Published: November 2018

We solve two problems in representation theory for the periplectic Lie superalgebra$\mathfrak{p}\mathfrak{e}(n)$, namely, the description of the primitive spectrum in terms of functorial realisations of the braid group and the decomposition of category ${\mathcal{O}}$into indecomposable blocks.

To solve the first problem, we establish a new type of equivalence between category ${\mathcal{O}}$for all (not just simple or basic) classical Lie superalgebras and a category of Harish-Chandra bimodules. The latter bimodules have a left action of the Lie superalgebra but a right action of the underlying Lie algebra. To solve the second problem, we establish a BGG reciprocity result for the periplectic Lie superalgebra.
Multiple Lattice Tilings in Euclidean Spaces
Authors: Yang Qi , Zong Chuanming
Published: November 2018

In 1885, Fedorov discovered that a convex domain can form a lattice tiling of the Euclidean plane if and only if it is a parallelogram or a centrally symmetric hexagon. This paper proves the following results. Except for parallelograms and centrally symmetric hexagons, there are no other convex domains that can form two-, three- or four-fold lattice tilings in the Euclidean plane. However, there are both octagons and decagons that can form five-fold lattice tilings. Whenever $n\geqslant 3$, there are non-parallelohedral polytopes that can form five-fold lattice tilings in the $n$-dimensional Euclidean space.
Improving Resident and Fellow Engagement in Patient Safety Through a Graduate Medical Education Incentive Program
Authors: Turner David A. , Bae Jonathan , Cheely George , Milne Judy , Owens Thomas A. , Kuhn Catherine M.
Published: November 2018

Background

Collaboration between graduate medical education (GME) and health systems is essential for the success of patient safety initiatives. One example is the development of an incentive program aligning trainee performance with health system quality and safety priorities.

Objective

We aimed to improve trainee safety event reporting and engagement in patient safety through a GME incentive program.

Methods

The incentive program was implemented to provide financial incentives to drive behavior and engage residents and fellows in safety efforts. Safety event reporting was measured beginning in the 2014–2015 academic year. A training module was introduced and the system reporting link was added to the institution's Resident Management System homepage. The number of reports by trainees was tracked over time, with a target of 2 reports per trainee per year.

Results

Baseline data for the year prior to implementation of the incentive program showed less than 0.5% (74 of 16 498) of safety reports were submitted by trainees, in contrast with 1288 reports (7% of institutional reports) by trainees in 2014–2015 (P < .0001). A total of 516 trainees (57%), from 37 programs, received payment for the metric, based on a predefined program target of a mean of 2 reports per trainee. In 2015–2016 and 2016–2017 the submission rate was sustained, with 1234 and 1350 reports submitted by trainees, respectively.

Conclusions

An incentive program as part of a larger effort to address safety events is feasible and resulted in increased reporting by trainees.
THE ENUMERATION OF PSYCHROPHILIC MICROORGANISMS IN DAIRY PRODUCTS1
Authors: Baumann D. P. , Reinbold G. W.
Published: November 2018

The eleventh edition of Standard Methods for the Examination of Dairy Products sanctions optional use of incubation temperatures and times (5–7 C for 7–10 days) for determination of the psychrophilic bacterial count of dairy products. This study shows that this 2 degree difference in incubation temperature, the 3 day difference in incubation time and a combination of these factors could be responsible for a significant variation in psychrophilic bacterial counts. A total of 67 raw milk, 58 pasteurized milk, 19 ice cream and eight cottage cheese samples were plated at 5 and 7 C for 7 and 10 days. Significantly higher counts were obtained after 10 days than after 7 days incubation at both temperatures; however, greater increases in counts resulted from raising the temperature from 5 to 7 C. Highest counts were obtained at 7 C for 10 days. A total of 559 isolates were picked from plates of 12 milk samples that had been incubated at 5 and 7 C for 7 days and 7 C for 10 days. Classification of the isolates indicated that variations in counts were due to differing abilities of organisms within genera to grow at low temperatures and not to preferential growth of different genera. Adoption of one incubation temperature and time for the determination of psychrophilic bacterial counts is recommended.
BACTERIOLOGICAL SURVEY OF FILLETING PROCESSES IN THE PACIFIC NORTHWEST
Authors: Tretsven Wayne I.
Published: November 2018

Lots of incoming commercial cod were sampled by six different methods to determine the best one for measuring the bacterial load on the fish. Rinses of similar whole cod gave bacterial counts that were relatively low and quite variable, whereas spraying a rinse against the surface resulted both in higher and in more uniform counts. When similar 5-cm2 areas were sampled, bacterial counts obtained by swabbing respresented 35% ad scraping represented 46% of that obtained from the excised surface.

Counts differed more between the lots of fish than between fish or between portions of the same fish. Swabbing appears to be a practical method of sampling in-line processing of fish, as it is non-destructive and relatively efficient in removing large and fairly uniform numbers of bacteria.
A COMPARATIVE STUDY OF THE VOLUMETRIC DELIVERIES FROM GLASS AND PLASTIC PIPETTES
Authors: Felland Huda S. , Nadig James W.
Published: November 2018

This study was undertaken to determine the accuracy of 0.1- and 1.0-ml deliveries from disposable plastic pipettes. Actual volumes delivered by plastic, and glass pipettes purportedly manufactured according to American Public Health Association specifications were determined. Results indicated that calibrations of the plastic pipettes were more consistent and accurate than those of glass pipettes.
EFFECT OF THE TYPE OF BACTERIOLOGICAL PEPTONE IN THE PLATING MEDIUM UPON THE ENUMERATION OF PASTEURIZATION-RESISTANT BACTERIA IN MILK1
Authors: Thomas W. R. , Reinbold G. W. , Nelson F. E.
Published: November 2018

Various bacteriological, peptones were studied as to effects on enumeration of pasteurization-resistant bacteria in milk. No appreciable differences were observed in colony counts of unheated cultures of thermoduric Micrococcus varians and Arthrobacter and Streptococcus sp. when plated with media containing different peptones. After laboratory pasteurization, colony counts differed substantially. Usually, media producing the highest counts yielded the largest and most easily discernible colonies. Bacto-Tryptone was deficient for colony development of thermoduric streptococci. Results indicate that, although seemingly adequate for enumeration in raw milk, the bacteriological peptone currently recommended for the standard plate count may not be satisfactory for the determination of the maximum viable bacteria population of pasteurized milk.
Correlated observation error models for assimilating all-sky infrared radiances
Authors: Geer Alan J.
Published: November 2018

Abstract. The benefit of hyperspectral infrared sounders to weather forecasting has been improved with the representation of interchannel correlations in the observation error model. The aim is now to assimilate these observations in all-sky conditions. However, in cloudy skies, observation errors exhibit much stronger interchannel correlations, as well as much larger variances, compared to clear sky conditions. An observation error model is developed to represent these effects, building from the symmetric error models developed for all-sky microwave assimilation. The combination of variational quality control with correlated errors is also introduced. The new error model is tested in all-sky assimilation of 7 water vapour sounding channels from the Infrared Atmospheric Sounding Interferometer (IASI). However, its initial formulation degrades both tropospheric and stratospheric analyses. To explain this the eigendeparture and eigenjacobian are introduced as a way of understanding the effect of correlated observation errors in data assimilation. The trailing eigenvalues can be problematic because they strongly amplify high-order harmonic combinations of the water vapour channels, which could have at least three consequences: first, if there are small inter-channel biases, these can be greatly amplified; second, the trailing eigenjacobians map onto features resembling gravity waves that the data assimilation may not be able to handle; finally, these harmonic combinations can amplify trace sensitivities, for example revealing a strong upper stratospheric sensitivity over high cloud in what are usually mid- to upper-tropospheric water vapour channels. The most likely explanation is the sensitivity to gravity wave features that are present in the observations but hard for the data assimilation to handle. After reducing the sensitivity to the trailing eigenjacobians, the new error covariance matrix gives good results in all-sky infrared assimilation.
Ocean acidification reduces hardness and stiffness of the Portuguese oyster shell with impaired microstructure: a hierarchical analysis
Authors: Meng Yuan , Guo Zhenbin , Fitzer Susan C. , Upadhyay Abhishek , Chan Vera B. S. , Li Chaoyi , Cusack Maggie , Yao Haimin , Yeung Kelvin W. K. , Thiyagarajan Vengatesen
Published: November 2018

Abstract. The rapidly intensifying process of ocean acidification (OA) due to
anthropogenic CO2 is not only depleting carbonate ions necessary
for calcification but also causing acidosis and disrupting internal pH
homeostasis in several marine organisms. These negative consequences of OA on
marine calcifiers, i.e. oyster species, have been very well documented in
recent studies; however, the consequences of reduced or impaired
calcification on the end-product, shells or skeletons, still remain one of
the major research gaps. Shells produced by marine organisms under OA are
expected to show signs of dissolution, disorganized microstructure and
reduced mechanical properties. To bridge this knowledge gap and to test the
above hypothesis, we investigated the effect of OA on juvenile shells of the
commercially important oyster species, Magallana angulata,
at ecologically and climatically relevant OA levels (using pH 8.1, 7.8, 7.5,
7.2). In lower pH conditions, a drop of shell hardness and stiffness was
revealed by nanoindentation tests, while an evident porous internal
microstructure was detected by scanning electron microscopy. Crystallographic
orientation, on the other hand, showed no significant difference with
decreasing pH using electron back-scattered diffraction (EBSD). These results
indicate the porous internal microstructure may be the cause of the reduction
in shell hardness and stiffness. The overall decrease of shell density observed
from micro-computed tomography analysis indicates the porous internal
microstructure may run through the shell, thus inevitably limiting the
effectiveness of the shell's defensive function. This study shows the potential
deterioration of oyster shells induced by OA, especially in their early life
stage. This knowledge is critical to estimate the survival and production of
edible oysters in the future ocean.
Controls on redox-sensitive trace metals in the Mauritanian oxygen minimum zone
Authors: Rapp Insa , Schlosser Christian , Menzel Barraqueta Jan-Lukas , Wenzel Bernhard , Lüdke Jan , Scholten Jan , Gasser Beat , Reichert Patrick , Gledhill Martha , Dengler Marcus , Achterberg Eric P.
Published: November 2018

Abstract. The availability of the micronutrient iron (Fe) in surface waters determines primary production, N2 fixation and microbial community structure in large parts of the world's ocean, and thus plays an important role in ocean carbon and nitrogen cycles. Eastern boundary upwelling systems and the connected oxygen minimum zones (OMZs) are typically associated with elevated concentrations of redox-sensitive trace metals (e.g. Fe, manganese (Mn) and cobalt (Co)), with shelf sediments typically forming a key source. Over the last five decades, an expansion and intensification of OMZs has been observed and this trend is likely to proceed. However, it is unclear how trace metal (TM) distributions and transport are influenced by decreasing oxygen (O2) concentrations. Here we present dissolved (d;  0.2 μm) TM data collected at 7 stations along a 50 km transect in the Mauritanian shelf region. We observed enhanced concentrations of Fe, Co and Mn corresponding with low O2 concentrations (
Towards a standard typology of endogenous landslide seismic sources
Authors: Provost Floriane , Malet Jean-Philippe , Hibert Clément , Helmstetter Agnès , Radiguet Mathilde , Amitrano David , Langet Nadège , Larose Eric , Abancó Clàudia , Hürlimann Marcel , Lebourg Thomas , Levy Clara , Le Roy Gaëlle , Ulrich Patrice , Vidal Maurin , Vial Benjamin
Published: November 2018

Abstract. The objective of this work is to propose a standard classification of seismic
signals generated by gravitational processes and detected at close distances
(<1 km). We review the studies where seismic instruments have been
installed on unstable slopes and discuss the choice of the seismic
instruments and the network geometries. Seismic observations acquired at 13
unstable slopes are analyzed in order to construct the proposed typology. The
selected slopes are affected by various landslide types (slide, fall, topple
and flow) triggered in various material (from unconsolidated soils to
consolidated rocks). We investigate high-frequency bands (>1 Hz) where
most of the seismic energy is recorded at the 1 km sensor to source
distances. Several signal properties (duration, spectral content and
spectrogram shape) are used to describe the sources. We observe that similar
gravitational processes generate similar signals at different slopes. Three
main classes can be differentiated mainly from the length of the signals, the
number of peaks and the duration of the autocorrelation. The classes are the
“slopequake” class, which corresponds to sources potentially occurring
within the landslide body; the “rockfall” class, which corresponds to
signals generated by rock block impacts; and the “granular flow” class,
which corresponds to signals generated by wet or dry debris/rock flows.
Subclasses are further proposed to differentiate specific signal properties
(frequency content, resonance, precursory signal). The signal properties of
each class and subclass are described and several signals of the same class
recorded at different slopes are presented. Their potential origins are
discussed. The typology aims to serve as a standard for further comparisons
of the endogenous microseismicity recorded on landslides.
The NASA Eulerian Snow on Sea Ice Model (NESOSIM) v1.0: initial model development and analysis
Authors: Petty Alek A. , Webster Melinda , Boisvert Linette , Markus Thorsten
Published: November 2018

Abstract. The NASA Eulerian Snow On Sea Ice Model (NESOSIM) is a new, open-source snow budget model that is currently configured to produce daily estimates of the depth and density of snow on sea ice across the Arctic Ocean through the accumulation season. NESOSIM has been developed in a three-dimensional Eulerian framework and includes two (vertical) snow layers and several simple parameterizations (accumulation, wind packing, advection–divergence, blowing snow lost to leads) to represent key sources and sinks of snow on sea ice. The model is forced with daily inputs of snowfall and near-surface winds (from reanalyses), sea ice concentration (from satellite passive microwave data) and sea ice drift (from satellite feature tracking) during the accumulation season (August through April). In this study, we present the NESOSIM formulation, calibration efforts, sensitivity studies and validation efforts across an Arctic Ocean domain (100 km horizontal resolution). The simulated snow depth and density are calibrated with in situ data collected on drifting ice stations during the 1980s. NESOSIM shows strong agreement with the in situ seasonal cycles of snow depth and density, and shows good (moderate) agreement with the regional snow depth (density) distributions. NESOSIM is run for a contemporary period (2000 to 2015), with the results showing strong sensitivity to the reanalysis-derived snowfall forcing data, with the Modern-Era Retrospective analysis for Research and Applications (MERRA) and the Japanese Meteorological Agency 55-year reanalysis (JRA-55) forced snow depths generally higher than ERA-Interim, and the Arctic System Reanalysis (ASR) generally lower. We also generate and force NESOSIM with a consensus median daily snowfall dataset from these reanalyses. The results are compared against snow depth estimates derived from NASA's Operation IceBridge (OIB) snow radar data from 2009 to 2015, showing moderate–strong correlations and root mean squared errors of  ∼ 10 cm depending on the OIB snow depth product analyzed, similar to the comparisons between OIB snow depths and the commonly used modified Warren snow depth climatology. Potential improvements to this initial NESOSIM formulation are discussed in the hopes of improving the accuracy and reliability of these simulated snow depths and densities.
Global simulation of tropospheric chemistry at 12.5 km resolution: performance and evaluation of the GEOS-Chem chemical module (v10-1) within the NASA GEOS Earth system model (GEOS-5 ESM)
Authors: Hu Lu , Keller Christoph A. , Long Michael S. , Sherwen Tomás , Auer Benjamin , Da Silva Arlindo , Nielsen Jon E. , Pawson Steven , Thompson Matthew A. , Trayanov Atanas L. , Travis Katherine R. , Grange Stuart K. , Evans Mat J. , Jacob Daniel J.
Published: November 2018

Abstract. We present a full-year online global simulation of tropospheric chemistry
(158 coupled species) at cubed-sphere c720 (∼12.5×12.5km2) resolution in the NASA Goddard Earth
Observing System Model version 5 Earth system model (GEOS-5 ESM) with
GEOS-Chem as a chemical module (G5NR-chem). The GEOS-Chem module within GEOS
uses the exact same code as the offline GEOS-Chem chemical transport model
(CTM) developed by a large atmospheric chemistry research community. In this
way, continual updates to the GEOS-Chem CTM by that community can be
seamlessly passed on to the GEOS chemical module, which remains state of the
science and referenceable to the
latest version of GEOS-Chem. The 1-year G5NR-chem simulation was conducted to
serve as the Nature Run for observing system simulation experiments (OSSEs)
in support of the future geostationary satellite constellation for
tropospheric chemistry. It required 31 wall-time days on 4707 compute cores
with only 24 % of the time spent on the GEOS-Chem chemical module. Results
from the GEOS-5 Nature Run with GEOS-Chem chemistry were shown to be
consistent to the offline GEOS-Chem CTM and were further compared to global
and regional observations. The simulation shows no significant global bias
for tropospheric ozone relative to the Ozone Monitoring Instrument (OMI)
satellite and is highly correlated with observations spatially and
seasonally. It successfully captures the ozone vertical distributions
measured by ozonesondes over different regions of the world, as well as
observations for ozone and its precursors from the August–September 2013
Studies of Emissions, Atmospheric Composition, Clouds and Climate Coupling by
Regional Surveys (SEAC4RS) aircraft campaign over the southeast US. It
systematically overestimates surface ozone concentrations by
10 ppbv at sites in the US and Europe, a problem currently being
addressed by the GEOS-Chem CTM community and from which the GEOS ESM will
benefit through the seamless update of the online code.
ROLE OF SAR DATA IN WATER BODY MAPPING AND RESERVOIR SEDIMENTATION ASSESSMENT
Authors: Prasad N. R. , Garg V. , Thakur P. K.
Published: November 2018

Abstract. Reservoir sedimentation is the major problem, due to it every year the reservoir capacity is lost to considerable amount. Surveying for assessment of the reservoir by conventional approach is time and money consuming. Geospatial technology provides ample opportunity in this field through the availability of high resolution satellite data from sensors such as Sentinel, Indian Remote Sensing Satellite, Landsat, and SPOT have been used to calculate the water spread area of the reservoir. However, due to presence of cloud in most of the optical data during onset of monsoon, the water spread at the lowest reservoir level could not be mapped. In turn the revised capacity or sedimentation is generally assessed between either below full reservoir level (FRL) or above maximum draw down level (MDDL). Nowadays, the microwave synthetic aperture radar (SAR) data at reasonable spatial resolution is available freely in public domain. Moreover, microwave data has capability to penetrate cloud and the information below cloud can easily be retrieved. To overcome the issues related to optical data, in the present study, the reservoir sedimentation for Ghataprabha reservoir was estimated using SAR data. Sentinel-1A data was used to delineate the water spread area for the water year of 2016–17. The original live storage capacity (1974) was estimated to be 1434.14 Mm3 at FRL 662.940 m by the authorities using the hydrographic survey during the commissioning of the reservoir in the year 1974. The live storage capacity was found out to be 1366.14 Mm3 at FRL, however, as per original elevation-area-capacity curve the live capacity is around 1262.404 Mm3 at 660.50 m. Estimated live storage capacity from Remote sensing approach (2016–17) was assesses as 1182.5 Mm3 at 660.51 m. The storage capacity has reduced from 1262.40 Mm3 (1974) to 1182.51 Mm3 i.e. around 171.732 Mm3. As per present analysis the rate of sedimentation is around 4 Mm3/yr. It was realized that using the SAR microwave data, the revised capacity of the reservoir from its near MDDL to FRL could be assessed through remote sensing approach.
EVALUATION OF HIGH RESOLUTION URBAN LULC FOR SEASONAL FORECASTS OF URBAN CLIMATE USING WRF MODEL
Authors: Bhavana M. , Gupta K. , Pal P. K. , Kumar A. S. , Gummapu J.
Published: November 2018

Abstract. In all mesoscale models with urban parameterizations, urban area represented as a single entity to represent the influence of urban morphology. In the last few years, many Urban Canopy Models (UCM) have been developed by many researchers to model the urban energy fluxes, but their spatial resolution is too coarse. These models proves to be a hindrance in obtaining improved results for urban climatic studies due to their coarser resolution. So downscaling of climatic variables in an urban area is primary significance for urban climatic studies. Weather Research Forecasting Model (WRF) is the one of the models that has been used widely for downscaling the climatic variables at urban scale and it has been also integrated with UCM along with a number of urban sub physics options. In this study, modified high resolution Land Use Land Cover (LULC) representing three urban classes for the city of Chandigarh has been ingested into the model to examine and validate the model output with respect to ground observations. The model has been configured with two domains with a resolution of 3KM and 1KM and simulations were carried out for three days of the of four seasons of India, winter, summer, monsoon and post-monsoon for the analysis of seasonal variation. Improved values of Root Mean Square Error (RMSE) for surface temperature, relative humidity and wind speed was observed with modified high resolution LULC with BEM option as compared to single urban built up class. In terms of temperature, summer season showed very less RMSE than other seasons, i.e, 0.76 °C and . In terms of relative humidity, monsoon season showed very less RMSE than other seasons, i.e., 2.63% and in terms of wind speed, post monsoon season is giving less RMSE i.e., 1.01 m/s.
UAV LOW-COST SYSTEM FOR EVALUATING AND MONITORING THE GROWTH PARAMETERS OF CROPS
Authors: D’Urso M. G. , Rotondi A. , Gagliardini M.
Published: November 2018

Abstract. New generation sensors (RGB, thermal, NIR and multispectral cameras) on unmanned aerial vehicles are continuously being developed for precision farming applications. In particular, this paper presents a study and an experimentation linked to the determination of viticulture growth indices by integrating the innovative techniques of digital photogrammetry from UAV platform, GPS satellite technique and traditional measures. Furthermore we demonstrate that the products from the processed raw-data represent good quality support to determine health state of the crop, and provide in addition a quantitative evaluation of the observed data. Through the use of such a technology it is possible to improve productivity between 15% and 17%, reducing the market price of the product and the costs of control and management. In particular, during the monitoring campaign lasting three years from 2015 to 2017, it was possible to observe that vine cultivation increased the growth index by about 12% following the corrections resulting from the critical interpretation of the results.
CROSS BORDER EDUCATION IN GEOINFORMATION TECHNOLOGIES AND APPLICATIONS IN ASIA AND THE PACIFIC – A CSSTEAP EXPERIENCE
Authors: Kumar A. S. , Aggarwal S. P.
Published: November 2018

Abstract. With increasing demand of geoinformation technologies in national natural resources management and developmental planning, developing countries having lack of expertise seek crossborder education for their working professionals from globally recognized institutions/organizations. As the first regional center set up by UNOOSA to train Space Science and Technology Education for Asia and the Pacific region, CSSTEAP has contributed significantly in the last two decades by following methods for effective knowledge transfer to large participants from this region. This paper outlines its efforts in framing programs, uniqueness of training institutions, as well as best practices adapted by this Center. The effectiveness of the training judged by feedback from Alumni show promising impact on their career growth.
TEMPORAL AND SPATIAL ANALYSIS OF URBAN HEAT ISLAND USING LANDSAT SATELLITE DATA: TWO INDIAN CASE STUDIES
Authors: Dutta K. , Basu D. , Agrawal S.
Published: November 2018

Abstract. Urban environment is examined through time series Landsat TM (Thematic Mapper) and OLI/TIRS (Operational Land Imager & Thermal Infrared Sensor) sensor images. A continuous surface of Land Surface Temperature (LST) can be extracted from Landsat thermal bands. Similarly different band combinations and ratios will give spatial pattern of land cover categories. Among these, building and vegetation indices are used to characterize the spatiotemporal pattern of elevated temperature zones in cities. This excess heat concentration creates thermal hotspots which are known as Urban Heat Islands (UHI). Parameters of land cover are then related to LST to detect the influence of urbanization on intensity and extent of heat islands, by pixel based quantitative analysis. This paper focuses on two megacities of India and their surrounding districts for identifying the critical UHI areas. The purpose of this paper is to create a database for reconstruction in old cities and planning of new smart cities. Results suggest that urban sprawl and substitution of rural areas with impervious surface plays significant role in microclimate, causing formation of new thermal hotspots. The analysis of urban thermal environment and its dynamics is to provide a scientific basis for future strategy building.
ROAD SURFACE DETECTION FROM MOBILE LIDAR DATA
Authors: Yadav M. , Lohani B. , Singh A. K.
Published: November 2018

Abstract. The accurate three-dimensional road surface information is highly useful for health assessment and maintenance of roads. It is basic information for further analysis in several applications including road surface settlement, pavement condition assessment and slope collapse. Mobile LiDAR system (MLS) is frequently used now a days to collect detail road surface and its surrounding information in terms three-dimensional (3D) point cloud. Extraction of road surface from volumetric point cloud data is still in infancy stage because of heavy data processing requirement and the complexity in the road environment. The extraction of roads especially rural road, where road-curb is not present is very tedious job especially in Indian roadway settings. Only a few studies are available, and none for Indian roads, in the literature for rural road detection. The limitations of existing studies are in terms of their lower accuracy, very slow speed of data processing and detection of other objects having similar characteristics as the road surface. A fast and accurate method is proposed for LiDAR data points of road surface detection, keeping in mind the essence of road surface extraction especially for Indian rural roads. The Mobile LiDAR data in XYZI format is used as input in the proposed method. First square gridding is performed and ground points are roughly extracted. Then planar surface detection using mathematical framework of principal component analysis (PCA) is performed and further road surface points are detected using similarity in intensity and height difference of road surface pointe in their neighbourhood.A case study was performed on the MLS data points captured along wide-street (two-lane road without curb) of 156 m length along rural roadway site in the outskirt of Bengaluru city (South-West of India). The proposed algorithm was implemented on the MLS data of test site and its performance was evaluated it terms of recall, precision and overall accuracy that were 95.27%, 98.85% and 94.23%, respectively. The algorithm was found computationally time efficient. A 7.6 million MLS data points of size 27.1 MB from test site were processed in 24 minutes using the available computational resources. The proposed method is found to work even for worst case scenarios, i.e., complex road environments and rural roads, where road boundary is not clear and generally merged with road-side features.
EDUCATION AND TRAINING RESOURCES ON DIGITAL PHOTOGRAMMETRY
Authors: Tucci G. , Conti A. , Fiorini L. , Panighini F. , Parisi E. I.
Published: November 2018

Abstract. Current close-range photogrammetry makes it possible to obtain 3-D models from imagery acquired with off-the-shelf digital cameras or other low-cost devices and processed with affordable software or apps in an almost automatic way. For this reason, a wider and wider public (often without a specific training, as archaeologists, architects, landscape planners, digital artists) is using these tools and their outcomes in many fields. However, the drawback of its ease of use is that photogrammetry is often used without any critical awareness of the metric quality of the results. Therefore, it is necessary to bridge the growing gap between the spread of photogrammetric techniques and their use through appropriate educational processes. The paper presents and explain the results of the project “Education and training resources on digital photogrammetry”, financed in 2018 by ISPRS as part of the “Educational and Capacity Building Initiative” programme. The project, after evaluating the current teaching methodologies and techniques, is producing and sharing original teaching materials (like videos and datasets) on digital photogrammetry. The aim is to transform the traditional transmissive didactic model in a newer one in which the students have an active role and improve their proficiencies solving actual case studies in practice. This induces students to rethink and better understand all the steps of the photogrammetric project design, acquisition and processing but above all to acquire greater skills to critically evaluate the acquired data and results.
Rotational Constraint between Beams in 3-D Space
Authors: Motamedian Hamid Reza , Kulachenko Artem
Published: November 2018

Abstract. In this paper, we develop two alternative formulations for the rotational constraint between the tangents to connected beams with large deformations in 3-D space. Such a formulation is useful for modeling bonded/welded connections between beams. The first formulation is derived by consistently linearizing the variation of the strain energy and by assuming linear shape functions for the beam elements. This formulation can be used with both the Lagrange multiplier and the penalty stiffness method. The second non-consistent formulation assumes that the contact normal is independent of the nodal displacements at each iteration, and is updated consistently between iterations. In other words, we ignore the contribution due to the change of the contact normal in the linearization of the contact gap function. This assumption yields simpler equations and requires no specific assumption regarding the shape functions for the underlying beam elements. However, it is limited to the penalty method. We demonstrate the performance of the presented formulations in solving problems using implicit time integration. We also present a case showing the implications of ignoring this rotational constraint in modeling a network of beams.
A Contrastive Study on the Application of Mind Maps in Argumentative Writing Instruction for EFL Learners
Authors: Zhang Ying
Published: November 2018

This study is aimed at exploring the relationship between explicit instruction of mind mapping at pre-writing stage and the quality of Chinese EFL learners’ argumentative writing. Thirty-nine first-year English majors from two convenient classes were randomly assigned into the experimental group and the control group respectively. For the control group, the traditional way of teaching writing was adopted, while for the experimental group, the application of mind mapping was integrated into the writing instruction. Five participants from the experimental group participated in the following interview. The comparison of mean scores of post-experimental argumentative writings between two groups indicated that the experimental group significantly performed better than the control group in content and organization of their writings. Through the analysis of interviews, it was found that participants regarded mind mapping as a useful tool for planning their writing and their personal attitudes toward English writing became more positive. The findings provide EFL teachers and curriculum designers with useful insights into improving the efficiency of writing instruction.
3D Stereo Reconstruction of SEM Images
Authors: Henao-Londoño J. C. , Riaño-Rojas J. C. , Gómez-Mendoza J. B. , Restrepo-Parra E.
Published: November 2018

In this work is proposed a new fully automated methodology using computer vision and dynamic programming to obtain a 3D reconstruction model of surfaces using scanning electron microscope (SEM) images based on stereovision. The horizontal stereo matching step is done with a robust and efficient algorithm based on semi-global matching. The cost function used in this study is very simple since the brightness and contrast change of corresponding pixels is negligible for the small tilt involved in stereo SEM. It is used a sum of absolute differences (SAD) over a variable pixel size window. Since it relies on dynamic programming, the matching algorithm uses an occlusion parameter which penalizes large depth discontinuities and, in practice, smooths the disparity map and the corresponding reconstructed surface. This step yields a disparity map, i.e. the differences between the horizontal coordinates of the matching points in the stereo images. The horizontal disparity map is finally converted into heights according to the SEM acquisition parameters: tilt angle, image magnification and pixel size. A validation test was first performed using as reference a microscopic grid with manufacturer specifications. Finally, with the 3D model are proposed some applications in materials science as roughness parameters estimation and wear measurements.
Wyzwania edukacyjne w kontekście narastających nierówności społecznych
Authors: Badowska Mariola
Published: November 2018

The problem of modern society is that it does not integrate its members into functional
systems as a collectivity of individuals with a sense of community and interdependence, but
makes them a group of consumers who want to achieve success on their own and for their
own benefits. However, not everyone is able to achieve the desired goal. As a result, we have
social inequalities that significantly affect relationships and social processes.
For many years, economists and sociologists have pointed to the fact that economic
success does not necessarily translate into welfare (or quality of life) of societies. They even
talk about the “breakdown of society” phenomenon, i.e., an increase in antisocial behaviour
and a loss of a sense of community. In the current social reality, we can identify many examples
of the fact that their fears are justified. All this makes the need for educational measures to
stop or even reverse these phenomena threatening social cohesion seem reasonable.
The Clinical Significance of Crohn Disease Activity at Resection Margins
Authors: Setoodeh Sasan , Liu Li , Boukhar Sarag A. , Singal Amit G. , Westerhoff Maria , Waljee Akbar K. , Ahmed Tasneem , Gopal Purva
Published: November 2018

Context.—

Conflicting data about the clinical significance of microscopic Crohn disease (CD) activity at resection margins have led to varying practice patterns for routine reporting by pathologists.

Objective.—

To characterize the association between active disease at resection margins with postoperative CD recurrence and time-to-recurrence in the era of anti–tumor necrosis factor therapy.

Design.—

We performed a multicenter retrospective cohort study of 101 consecutive CD bowel resections during 10 years. Margin slides were reviewed, and CD activity at the margins was graded as none, mild, moderate, or severe. The association between microscopic CD activity at the margin with postoperative recurrence and time-to-recurrence were evaluated with logistic regression and Cox regression analyses, respectively.

Results.—

Crohn disease activity at resection margins was reported in 43% of pathology reports. Resection margins had CD involvement in 39.6% of cases, 20 of which were classified as mild, 6 as moderate, and 12 with severe CD activity. Although patients with mild (odds ratio, 1.14; 95% CI, 0.40–3.20) and moderate to severe (odds ratio, 1.97; 95% CI, 0.62–6.35) activity were at increased risk of disease recurrence, the differences were not statistically significant. Patients with mild (hazard ratio, 0.97; 95% CI, 0.50–1.91) and moderate to severe (hazard ratio, 1.29; 95% CI, 0.65–2.55) disease activity at margins did not have significantly different time-to-recurrence compared with those without disease activity.

Conclusions.—

Our study suggests CD activity at resection margins is not significantly associated with postoperative CD recurrence.