bluuebunny/crossref_metadata_2025 huggingface dataset:
A Novel Active Imaging Model to Design Visual Systems: A Case of Inspection System for Specular Surfaces
Authors: Azorin-Lopez Jorge , Fuster-Guillo Andres , Saval-Calvo Marcelo , Mora-Mora Higinio , Garcia-Chamizo Juan
Published: June 2017

The use of visual information is a very well known input from different kinds of sensors. However, most of the perception problems are individually modeled and tackled. It is necessary to provide a general imaging model that allows us to parametrize different input systems as well as their problems and possible solutions. In this paper, we present an active vision model considering the imaging system as a whole (including camera, lighting system, object to be perceived) in order to propose solutions to automated visual systems that present problems that we perceive. As a concrete case study, we instantiate the model in a real application and still challenging problem: automated visual inspection. It is one of the most used quality control systems to detect defects on manufactured objects. However, it presents problems for specular products. We model these perception problems taking into account environmental conditions and camera parameters that allow a system to properly perceive the specific object characteristics to determine defects on surfaces. The validation of the model has been carried out using simulations providing an efficient way to perform a large set of tests (different environment conditions and camera parameters) as a previous step of experimentation in real manufacturing environments, which more complex in terms of instrumentation and more expensive. Results prove the success of the model application adjusting scale, viewpoint and lighting conditions to detect structural and color defects on specular surfaces.
Stereo Vision-Based High Dynamic Range Imaging Using Differently-Exposed Image Pair
Authors: Park Won-Jae , Ji Seo-Won , Kang Seok-Jae , Jung Seung-Won , Ko Sung-Jea
Published: June 2017

In this paper, a high dynamic range (HDR) imaging method based on the stereo vision system is presented. The proposed method uses differently exposed low dynamic range (LDR) images captured from a stereo camera. The stereo LDR images are first converted to initial stereo HDR images using the inverse camera response function estimated from the LDR images. However, due to the limited dynamic range of the stereo LDR camera, the radiance values in under/over-exposed regions of the initial main-view (MV) HDR image can be lost. To restore these radiance values, the proposed stereo matching and hole-filling algorithms are applied to the stereo HDR images. Specifically, the auxiliary-view (AV) HDR image is warped by using the estimated disparity between initial the stereo HDR images and then effective hole-filling is applied to the warped AV HDR image. To reconstruct the final MV HDR, the warped and hole-filled AV HDR image is fused with the initial MV HDR image using the weight map. The experimental results demonstrate objectively and subjectively that the proposed stereo HDR imaging method provides better performance compared to the conventional method.
A Comprehensive Study on the Internet of Underwater Things: Applications, Challenges, and Channel Models
Authors: Kao Chien-Chi , Lin Yi-Shan , Wu Geng-De , Huang Chun-Ju
Published: June 2017

The Internet of Underwater Things (IoUT) is a novel class of Internet of Things (IoT), and is defined as the network of smart interconnected underwater objects. IoUT is expected to enable various practical applications, such as environmental monitoring, underwater exploration, and disaster prevention. With these applications, IoUT is regarded as one of the potential technologies toward developing smart cities. To support the concept of IoUT, Underwater Wireless Sensor Networks (UWSNs) have emerged as a promising network system. UWSNs are different from the traditional Territorial Wireless Sensor Networks (TWSNs), and have several unique properties, such as long propagation delay, narrow bandwidth, and low reliability. These unique properties would be great challenges for IoUT. In this paper, we provide a comprehensive study of IoUT, and the main contributions of this paper are threefold: (1) we introduce and classify the practical underwater applications that can highlight the importance of IoUT; (2) we point out the differences between UWSNs and traditional TWSNs, and these differences are the main challenges for IoUT; and (3) we investigate and evaluate the channel models, which are the technical core for designing reliable communication protocols on IoUT.
Reducing Global Warming Potential through Sustainable Intensification of Basmati Rice-Wheat Systems in India
Authors: Sapkota Tek , Shankar Vivek , Rai Munmun , Jat Mangi , Stirling Clare , Singh Love , Jat Hanuman , Grewal Mohinder
Published: June 2017

This study examines the effects of tillage, residue management and cropping system intensification through the inclusion of green gram on the performance of the rice-wheat (RW) system in NW India. We hypothesized that zero tillage (ZT) with residue retention provides a means of sustainably intensifying the RW system through lower production costs and higher economic profitability, whilst at the same time minimizing soil and environmental trade-offs. To test this hypothesis, we evaluated six combinations of tillage, residue management and green gram integration in RW rotation in northwest Indo-Gangetic Plains (IGP) of India. Treatments included in the study were: rice and wheat under conventional tillage (CT) with and without green gram (CTR-CTW, CTR-CTW+GG), both crops under zero-tillage (ZT) with and without green gram (ZTR-ZTW-R, ZTR-ZTW-R+GG) and both crops under ZT plus residues with and without green gram (ZTR-ZTW+R, ZTR-ZTW+R+GG). Based on two consecutive years of data, the net return from the RW system was significantly higher in the ZT than CT systems. Methane emissions were only observed under flooded conditions in CT rice plots; otherwise, emissions were negligible in all other treatment combinations. N2O emissions were dictated by N fertilizer application with no other treatment effects. Overall, ZT with residue retention resulted in the lowest global warming potential (GWP) ranging from −3301 to −823 kg CO2-eq ha−1 year−1 compared to 4113 to 7917 kg CO2-eq ha−1 year−1 in other treatments. Operational inputs (tillage, planting, and irrigation) and soil C sequestration had significant effects on total GWP. The water footprint of RW production system was about 29% less in CA-based system compared to CT-based systems. Our study concludes that ZTR-ZTW+R and ZTR-ZTW+R+GG in RW systems of northwestern IGP have the potential to be agronomically productive, economically viable with benefits also for the environment in terms of soil health and GHG emissions.
Linkage among School Performance, Housing Prices, and Residential Mobility
Authors: Yi Yoojin , Kim Euijune , Choi Eunjin
Published: June 2017

Ensuring equal opportunity of quality basic education is critical for a sustainable society, but access to high-quality public education is limited by the place of residence and income level of the household, especially under rigid geographic school assignment. This paper identifies multilateral linkages among academic performance of elementary school, housing prices, and residential mobility in Seoul. A spatial simultaneous equation system is applied to address feedback simultaneity and spatial interactions between local housing market and residential mobility. The results show that school performance positively affects both housing prices and population in-migration, but the increase in housing prices discourages the residential move into affluent school districts. Based on the finding that discouraging effect of housing price premium on population in-migration outweighs the population inflow attracted by school performance, this paper suggests policies to reduce the inequality of educational achievements.
Exploring the Staple Foodscape of Dar es Salaam
Authors: Wegerif Marc C. A. , Wiskerke Johannes S. C.
Published: June 2017

The city region foodscape is a relational space of spatially proximate as well as more distant relations. The current understanding of city region foodscapes will be enhanced by more analyses of what is happening in the African and Asian cities where rapid population growth and urbanization, with all its challenges and opportunities, is predominantly taking place. This paper explores the city foodscape of one such city, the rapidly growing Dar es Salaam with over 4.5 million inhabitants. By following some important foods for eaters in the city, this paper draws a picture of the changing shape and nature of Dar es Salaam’s foodscape and draws out lessons for debates on city region food systems and urban food planning. It is found that key staple foods are coming from the rural hinterland through a food system that is not part of or modeled on the globally dominant corporate food system and as such represents a working alternative. This food system neither fits within administrative boundaries nor relies primarily on local production. We argue that more academic and policy attention needs to be given to understanding and reinforcing such middle-ground, neither local nor global, food systems that are delivering at city feeding scale.
Application of Protection Motivation Theory to Investigate Sustainable Waste Management Behaviors
Authors: Janmaimool Piyapong
Published: June 2017

The aim of this study is to explain individuals’ engagement in sustainable waste management behaviors (SWMBs) based on the application of protection motivation theory (PMT). SWMBs include waste avoidance, green purchasing, reuse and recycle, and waste disposal behaviors. Considering the amount of solid waste generation per capita per day during the past 10 years, the statistical records from the Bangkok Metropolitan Administration (BMA) illustrate the increasing trend of solid waste generation from 1.18 kg per capita per day in 2005 to 1.28 kg per capita per day 2015. Many scholars have asserted that human beings should alter their behaviors to successfully reduce their environmental impact. Several environmental problems (e.g., air pollution, water pollution, and odors) caused by waste disposal are consequences of human behaviors; therefore, citizens’ engagement in SWMBs should be widely promoted. This study applies PMT to explore how individuals’ SWMBs are influenced by their perceived threats caused by environmental contamination from waste disposal and their perceived coping capability. The Bangkok metropolitan area was selected as a case study because it has faced serious waste management problems, caused by increasing amounts of solid waste over the last ten years. Questionnaire surveys were administered to 193 public and private office workers residing in the city of Bangkok. Multiple linear regression analyses were performed to justify the effects of individual threat appraisal and coping appraisal on SWMB engagement. The results illustrated that respondents’ self-efficacy could explain all types of SWMBs. On the contrary, response efficacy was not a significant predictor of all behaviors. People’s perceived severity of adverse consequences caused by pollutants could significantly explain their waste disposal and reuse and recycle behaviors, and the perceived probability of being impacted by pollutants could explain only reuse and recycling behaviors. Thus, PMT may be well suited for explaining low-cost and simple SWMBs that require less effort. To promote people’s engagement in each type of SWMB, different communication campaigns should be established.
Introducing Flexibility to Complex, Resilient Socio-Ecological Systems: A Comparative Analysis of Economics, Flexible Manufacturing Systems, Evolutionary Biology, and Supply Chain Management
Authors: Asokan Vivek , Yarime Masaru , Esteban Miguel
Published: June 2017

In this paper, a framework incorporating flexibility as a characteristic is proposed for designing complex, resilient socio-ecological systems. In an interconnected complex system, flexibility allows prompt deployment of resources where they are needed and is crucial for both innovation and robustness. A comparative analysis of flexible manufacturing systems, economics, evolutionary biology, and supply chain management is conducted to identify the most important characteristics of flexibility. Evolutionary biology emphasises overlapping functions and multi-functionality, which allow a system with structurally different elements to perform the same function, enhancing resilience. In economics, marginal cost and marginal expected profit are factors that are considered to be important in incorporating flexibility while making changes to the system. In flexible manufacturing systems, the size of choice sets is important in creating flexibility, as initial actions preserve more options for future actions that will enhance resilience. Given the dynamic nature of flexibility, identifying the characteristics that can lead to flexibility will introduce a crucial dimension to designing resilient and sustainable socio-ecological systems with a long-term perspective in mind.
Deoxynivalenol Biomarkers in the Urine of UK Vegetarians
Authors: Wells Liz , Hardie Laura , Williams Courtney , White Kay , Liu Yunru , De Santis Barbara , Debegnach Francesca , Moretti Georgio , Greetham Stephanie , Brera Carlo , Papageorgiou Maria , Thatcher Natalie , Rigby Alan , Atkin Stephen , Sathyapalan Thozhukat
Published: June 2017

Deoxynivalenol (DON) is produced by Fusarium graminearum and is one of the most commonly occurring trichothecenes. Vegetarians are alleged to be a high-risk group for DON exposure due to high intakes of cereals susceptible to the growth of the mycotoxin. This study provides the levels of DON and de-epoxi Deoxynivalenol (DOM-1) in urine analysed by liquid chromatography-mass spectrometry (LC-MS) in UK vegetarians. Over two consecutive days, morning urine samples were collected from 32 vegetarians and 31 UK adult volunteers, and associated food consumption 24 h prior to the sample was recorded. Statistically significant differences between the weight of the UK adults and vegetarians (t = 3.15. df = 61, p ≤ 0.005 two-tailed) were observed. The mean levels of DON in urine for adults on day 1 was 3.05 ng free DON/mg creatinine, and on day 2 was 2.98 ng free DON/mg creatinine. Even though high mean levels were observed, most adults were within the tolerable daily intake. However, for vegetarians, the mean level of urinary DON on day 1 was 6.69 ng free DON/mg creatinine, and on day 2 was 3.42 ng free DON/mg creatinine. These levels equate to up to 32% of vegetarians exceeding recommended tolerable daily intakes (TDI) of exposure (1 µg/kg b.w./day).
trans-Cinnamic and Chlorogenic Acids Affect the Secondary Metabolic Profiles and Ergosterol Biosynthesis by Fusarium culmorum and F. graminearum Sensu Stricto
Authors: Kulik Tomasz , Stuper-Szablewska Kinga , Bilska Katarzyna , Buśko Maciej , Ostrowska-Kołodziejczak Anna , Załuski Dariusz , Perkowski Juliusz
Published: June 2017

Plant-derived compounds limiting mycotoxin contamination are currently of major interest in food and feed production. However, their potential application requires an evaluation of their effects on fungal secondary metabolism and membrane effects. In this study, different strains of Fusarium culmorum and F. graminearum sensu stricto were exposed to trans-cinnamic and chlorogenic acids on solid YES media. Fusaria produced phenolic acids, whose accumulation was lowered by exogenous phenolic compounds. In addition, fungi reduced exogenous phenolic acids, leading either to their conversion or degradation. trans-Cinnamic acid was converted to caffeic and ferulic acids, while chlorogenic acid was degraded to caffeic acid. The latter underwent further degradation to protocatechuic acid. Fungal-derived trans-cinnamic acid, as the first intermediate of the shikimate pathway, increased after chlorogenic acid treatment, presumably due to the further inhibition of the conversion of trans-cinnamic acid. Exogenous trans-cinnamic and chlorogenic acid displayed the inhibition of mycotoxin production by Fusaria, which appeared to be largely dependent on the phenolic compound and its concentration and the assayed strain. Exogenous phenolic acids showed different effects on ergosterol biosynthesis by fungi. It was found that the production of this membrane sterol was stimulated by trans-cinnamic acid, while chlorogenic acid negatively impacted ergosterol biosynthesis, suggesting that phenolic acids with stronger antifungal activities may upregulate ergosterol biosynthesis by Fusaria. This paper reports on the production of phenolic acids by Fusaria for the first time.
Co-Infection with Marek’s Disease Virus and Reticuloendotheliosis Virus Increases Illness Severity and Reduces Marek’s Disease Vaccine Efficacy
Authors: Sun Guo-Rong , Zhang Yan-Ping , Zhou Lin-Yi , Lv Hong-Chao , Zhang Feng , Li Kai , Gao Yu-Long , Qi Xiao-Le , Cui Hong-Yu , Wang Yong-Qiang , Gao Li , Pan Qing , Wang Xiao-Mei , Liu Chang-Jun
Published: June 2017

Marek’s disease virus (MDV) and reticuloendotheliosis virus (REV) cause Marek’s disease (MD) and reticuloendotheliosis (RE), respectively. Co-infection with MDV and REV is common in chickens, causing serious losses to the poultry industry. However, experimental studies of such co-infection are lacking. In this study, Chinese field strains of MDV (ZW/15) and REV (JLR1501) were used as challenge viruses to evaluate the pathogenicity of co-infection and the influence of MD vaccination in chickens. Compared to the MDV-challenged group, the mortality and tumor rates increased significantly by 20.0% (76.7 to 96.7%) and 26.7% (53.3 to 80.0%), in the co-challenged group, respectively. The protective index of the MD vaccines CVI988 and 814 decreased by 33.3 (80.0 to 47.7) and 13.3 (90.0 to 76.7), respectively. These results indicated that MDV and REV co-infection significantly increased disease severity and reduced the vaccine efficacy. The MDV genome load showed no difference in the feather pulps and spleen, and pathogenicity-related MDV gene expression (meq, pp38, vIL-8, and ICP4) in the spleen significantly increased at some time points in the co-challenged group. Clearly, synergistic pathogenicity occurred between MDV and REV, and the protective efficacy of existing MD vaccines was attenuated by co-infection with Chinese field MDV and REV strains.
Effects of Thinning on Flow Peaks in a Forested Headwater Catchment in Western Japan
Authors: Sun Haotian , Kasahara Tamao , Otsuki Kyoichi , Tateishi Makiko , Saito Takami , Onda Yuichi
Published: June 2017

This study examined the changes in rainfall-runoff characteristics in the year prior to and after intensive thinning of 50% in number in a steep headwater catchment, covered with 46-year-old Japanese cedar and cypress in western Japan. The magnitude of event peak flow, event quick flow, event water yield, and event response time did not change after thinning. Because 70% of rainfall events had multiple flow peaks, relationships between each flow peak and the rainfall just prior to that peak were also analyzed. The increases in accumulated quick flow, flow rise and flow drop were significant after thinning. The flow drop following each flow peak increased, and led to a lower initial flow in subsequent peaks, resulting in no increase in peak size. The flow peaks in events with over 30 mm rainfall amount and over 2 mm/h average rainfall intensity showed significant increases in flow peak, flow rise, flow drop, and accumulated quick flow, which suggests that the catchment exhibited more shallow flow paths during large rainfall amounts after thinning. No changes were identified using event-based analysis, but changes in flow peaks were detected, which indicates the importance of examining all flow peaks when investigating rainfall-runoff characteristics of headwater catchments.
Beach Response to Wave Forcing from Event to Inter-Annual Time Scales at Grand Popo, Benin (Gulf of Guinea)
Authors: Abessolo Ondoa Grégoire , Bonou Frédéric , Tomety Folly , Du Penhoat Yves , Perret Clément , Degbe Cossi , Almar Rafael
Published: June 2017

This paper assesses the morphological storm-event impact, seasonal cycles, trends of wave forcing, and beach’s response at the coastal area of Grand Popo, Benin. Three and a half years’ worth of data were collected from 2013 to 2016, using a video system calibrated with field data collected during a 10 day experiment. A comparison was carried out with Wavewatch III IOWAGA wave hindcast data. The along-shore-averaged shoreline position exhibited a seasonal pattern, which was related more to the average wave height than the average storm intensity. Storms occur in austral winter (June, July, August, and September). Based on 12 storms, the results revealed that the average storm duration was 1.6 days, with a mean erosion of 3.1 m. The average post-storm beach recovery duration was 15 days, and the average recovery rate was 0.4 m/day. The impact of storms was more or less amplified depending on the eroding and accreting periods of the wave climate. There was an inter-annual eroding trend of about −1.6 m/year, but the causes of this trend could not be explained.
Dissipation of Micropollutants in a Rewetted Fen Peatland: A Field Study Using Treated Wastewater
Authors: Maassen Sebastian , Richter Elisabeth , Coors Anja , Guimarães Bruno , Balla Dagmar
Published: June 2017

In the present study, a mixture of treated wastewater and surface water was used to rewet a degraded fen peatland site during a three-year rewetting experiment. We studied the behavior and effects of micropollutants by means of hydrological, physico-chemical, microbiological and ecotoxicological monitoring. The highest concentrations of micropollutants in the treated wastewater were found for the pharmaceuticals carbamazepine and diclofenac, some metabolites, the sweetener acesulfame, tolyl- and benzotriazole and diatrizoate. In the underlying, shallow groundwater where treated wastewater application for rewetting had been expected to have the greatest impact due to seeping and evapotranspiration processes, only a sporadic occurrence of micropollutants was found. The influence of dilution by groundwater movements was examined by applying a geohydrological model. The sorption of micropollutants onto the peaty soil also played a role, as found for carbamazepine. Further processes such as photolysis, microbial decay under low redox conditions and plant uptake can be assumed to be relevant for the removal of many substances. Ecotoxicity tests with the soil before and after rewetting did not indicate any negative impact on the soil habitat quality by wastewater application, but clearly pointed at ecotoxicologically relevant geogenic arsenic concentrations at the study site. Although a positive effect on receiving surface water systems is expected if wastewater is applied on land instead of discharged to water bodies, the rewetted soil may turn into a sink for micropollutants in the long term. Hence, the findings of the present field study encourage further investigations in order to identify the governing processes in the elimination of micropollutants in rewetted peatlands flooded with treated wastewater.
Modeling the Fate and Transport of Malathion in the Pagsanjan-Lumban Basin, Philippines
Authors: Ligaray Mayzonee , Kim Minjeong , Baek Sangsoo , Ra Jin-Sung , Chun Jong , Park Yongeun , Boithias Laurie , Ribolzi Olivier , Chon Kangmin , Cho Kyung
Published: June 2017

Exposure to highly toxic pesticides could potentially cause cancer and disrupt the development of vital systems. Monitoring activities were performed to assess the level of contamination; however, these were costly, laborious, and short-term leading to insufficient monitoring data. However, the performance of the existing Soil and Water Assessment Tool (SWAT model) can be restricted by its two-phase partitioning approach, which is inadequate when it comes to simulating pesticides with limited dataset. This study developed a modified SWAT pesticide model to address these challenges. The modified model considered the three-phase partitioning model that classifies the pesticide into three forms: dissolved, particle-bound, and dissolved organic carbon (DOC)-associated pesticide. The addition of DOC-associated pesticide particles increases the scope of the pesticide model by also considering the adherence of pesticides to the organic carbon in the soil. The modified SWAT and original SWAT pesticide model was applied to the Pagsanjan-Lumban (PL) basin, a highly agricultural region. Malathion was chosen as the target pesticide since it is commonly used in the basin. The pesticide models simulated the fate and transport of malathion in the PL basin and showed the temporal pattern of selected subbasins. The sensitivity analyses revealed that application efficiency and settling velocity were the most sensitive parameters for the original and modified SWAT model, respectively. Degradation of particulate-phase malathion were also significant to both models. The rate of determination (R2) and Nash-Sutcliffe efficiency (NSE) values showed that the modified model (R2 = 0.52; NSE = 0.36) gave a slightly better performance compared to the original (R2 = 0.39; NSE = 0.18). Results from this study will be able to aid the government and private agriculture sectors to have an in-depth understanding in managing pesticide usage in agricultural watersheds.
Design of haunches in structural steel joints
Authors: KUREJKOVÁ Marta , WALD František
Published: June 2017

The paper presents research in design of haunches in structural steel joints. Experimental results of six speci­mens of haunches with and without flanges are presented. Three specimens are without flanges and three specimens are supported by additional flanges. Flanges differ in stiffness to observe the increase in haunch resistances and the effect on buckling shapes. The research finite element model (RFEA) is studied by material and geometrical nonlinear finite element analysis with imperfections under the actual stress conditions and validated on the measured experimental data. The validity is demonstrated on the comparison of load-deflection curves, failure modes, stress distributions and yield line patterns. The stability analysis of a joint with a haunch is related to the research into component based finite element models of complex joints. The input and the results of the research finite element model are summarised in a benchmark case of a haunch with a flange. A numerical study illustrates the effect of the flange stiffness on the joint’s resistance. The effect is demonstrated on a simple arrangement with triangular stiffeners and on a beam-to-column joint. The main goal of the research is to verify proposed design procedure for stiffeners in steel joints.
Causes of contractors’ claims in international engineering-procurement-construction projects
Authors: SHEN Wenxin , TANG Wenzhe , YU Wenyang , DUFFIELD Colin F. , HUI Felix Kin Peng , WEI Yongping , FANG Jun
Published: June 2017

Engineering-Procurement-Construction (EPC) method has increasingly been applied in international markets. In this research, the causes of contractors’ claims in international EPC projects are modeled and empirically tested with industry survey, structural equation modeling and case studies from the perspective of Chinese contractors. The estab­lished model outlines the causes of contractors’ claims as: external risk (sociopolitical risks, economic risks, and natural hazards), clients’ organizational behavior (untimely payment, change orders, and inefficient processing), and project definition in contract (unclear scope of works, and unclear technical specification). The structural equation modelling validates that these causes have direct influences on claim respectively. Besides, clients’ organizational behavior acts as a partial mediation between external risk and claim, demonstrating that external risk can also exert influence on claim through affecting clients’ organizational behavior. Seven case studies further confirmed and interpreted the substantive meaning of these relationships. This study establishes interdisciplinary linkages among knowledge areas of contracting, risk management, organizational behavior, and international EPC project delivery, which has important primary contri­butions in both theory and practice. Understanding how the fundamental factors interactively lead to claims can help contracting parties to develop effective claim strategies, proactively mitigate project risks, and ultimately improve EPC project performance.
Desired points at minimum cost in the “Optimize Energy Performance” credit of leed certification
Authors: AKCAY Emre Caner , ARDITI David
Published: June 2017

This paper presents a method that guides designers in obtaining the desired number of earned points in the “Optimize Energy Performance” credit of the “Energy and Atmosphere” category of LEED version 4 (v4) certification at minimum cost. The model creates different scenarios, identifies the LEED points and costs for each scenario. The energy analysis calculations are performed by Sefaira, the quantities of materials are received from Autodesk Revit, and the cost information comes from the RSMeans Database. A macro in Excel automates the process. An office building was used as a case study to illustrate the applicability of the proposed method. The minimum cost necessary to achieve any number of points in the “Optimize Energy Performance” credit were calculated, such as a minimum cost of $842,500 to obtain 16 points, and $476,684 for 5 points. The primary contributions of this research include (1) the development of a tool that allows designers to pick the most economical alternative for the desired points in the “Optimize Energy Performance” credit, and (2) the first time integrated use of an energy simulation software (Sefaira), a cost database (RSMeans), and a BIM software (Autodesk Revit)
Study of the Plutino Object (208996) 2003 AZ84 from Stellar Occultations: Size, Shape, and Topographic Features
Authors: Dias-Oliveira A. , Sicardy B. , Ortiz J. L. , Braga-Ribas F. , Leiva R. , Vieira-Martins R. , Benedetti-Rossi G. , Camargo J. I. B. , Assafin M. , Gomes-Júnior A. R. , Baug T. , Chandrasekhar T. , Desmars J. , Duffard R. , Santos-Sanz P. , Ergang Z. , Ganesh S. , Ikari Y. , Irawati P. , Jain J. , Liying Z. , Richichi A. , Shengbang Q. , Behrend R. , Benkhaldoun Z. , Brosch N. , Daassou A. , Frappa E. , Gal-Yam A. , Garcia-Lozano R. , Gillon M. , Jehin E. , Kaspi S. , Klotz A. , Lecacheux J. , Mahasena P. , Manfroid J. , Manulis I. , Maury A. , Mohan V. , Morales N. , Ofek E. , Rinner C. , Sharma A. , Sposetti S. , Tanga P. , Thirouin A. , Vachier F. , Widemann T. , Asai A. , Hayato Watanabe , Hiroyuki Watanabe , Owada M. , Yamamura H. , Hayamizu T. , Bradshaw J. , Kerr S. , Tomioka H. , Andersson S. , Dangl G. , Haymes T. , Naves R. , Wortmann G.
Published: June 2017

We present results derived from four stellar occultations by the plutino object (208996) 2003 AZ84, detected on 2011 January 8 (single-chord event), 2012 February 3 (multi-chord), 2013 December 2 (single-chord), and 2014 November 15 (multi-chord). Our observations rule out an oblate spheroid solution for 2003 AZ84's shape. Instead, assuming hydrostatic equilibrium, we find that a Jacobi triaxial solution with semiaxes

km can better account for all our occultation observations. Combining these dimensions with the rotation period of the body (6.75 hr) and the amplitude of its rotation light curve, we derive a density

g cm−3, a geometric albedo

. A grazing chord observed during the 2014 occultation reveals a topographic feature along 2003 AZ84's limb, which can be interpreted as an abrupt chasm of width ∼23 km and depth

km, or a smooth depression of width ∼80 km and depth ∼13 km (or an intermediate feature between those two extremes).
Mean Motion Resonances at High Eccentricities: The 2:1 and the 3:2 Interior Resonances
Authors: Wang Xianyu , Malhotra Renu
Published: June 2017

Mean motion resonances (MMRs) play an important role in the formation and evolution of planetary systems and have significantly influenced the orbital properties and distribution of planets and minor planets in the solar system and in exoplanetary systems. Most previous theoretical analyses have focused on the low- to moderate-eccentricity regime, but with new discoveries of high-eccentricity resonant minor planets and even exoplanets, there is increasing motivation to examine MMRs in the high-eccentricity regime. Here we report on a study of the high-eccentricity regime of MMRs in the circular planar restricted three-body problem. Numerical analyses of the 2:1 and the 3:2 interior resonances are carried out for a wide range of planet-to-star mass ratio μ, and for a wide range of eccentricity of the test particle. The surface-of-section technique is used to study the phase space structure near resonances. We find that new stable libration zones appear at higher eccentricity at libration centers that are shifted from those at low eccentricities. We provide physically intuitive explanations for these transitions in phase space, and we present novel results on the mass and eccentricity dependence of the resonance widths. Our results show that MMRs have sizable libration zones at high eccentricities, comparable to those at lower eccentricities.
Compact Resolved Ejecta in the Nearest Tidal Disruption Event
Authors: Perlman Eric S. , Meyer Eileen T. , Wang Q. Daniel , Yuan Qiang , Henriksen Richard , Irwin Judith , Krause Marita , Wiegert Theresa , Murphy Eric J. , Heald George , Dettmar Ralf-Jürgen
Published: June 2017

Tidal disruption events (TDEs) occur when a star or substellar object passes close enough to a galaxy’s supermassive black hole to be disrupted by tidal forces. NGC 4845 (d = 17 Mpc) was host to a TDE, IGR J12580+0134, detected in 2010 November. Its proximity offers us a unique close-up of the TDE and its aftermath. We discuss new Very Long Baseline Array (VLBA) and Karl G. Jansky Very Large Array observations, which show that the radio flux from the active nucleus created by the TDE has decayed in a manner consistent with predictions from a jet-circumnuclear medium interaction model. This model explains the source’s broadband spectral evolution, which shows a spectral peak that has moved from the submillimeter (at the end of 2010) to GHz radio frequencies (in 2011–2013) to

in 2015. The milliarcsecond-scale core is circularly polarized at 1.5 GHz but not at 5 GHz, consistent with the model. The VLBA images show a complex structure at 1.5 GHz that includes an east–west extension that is ∼40 mas (3 pc) long, as well as a resolved component that is 52 mas (4.1 pc) northwest of the flat-spectrum core, which is all that can be seen at 5 GHz. If ejected in 2010, the northwest component must have had

over five years. However, this is unlikely, as our model suggests strong deceleration to speeds

within months and a much smaller, sub-parsec size. In this interpretation, the northwest component could have either a non-nuclear origin or be from an earlier event.
Predicting the Presence of Companions for Stripped-envelope Supernovae: The Case of the Broad-lined Type Ic SN 2002ap
Authors: Zapartas E. , Mink S. E. de , Dyk S. D. Van , Fox O. D. , Smith N. , Bostroem K. A. , Koter A. de , Filippenko A. V. , Izzard R. G. , Kelly P. L. , Neijssel C. J. , Renzo M. , Ryder S.
Published: June 2017

Many young, massive stars are found in close binaries. Using population synthesis simulations we predict the likelihood of a companion star being present when these massive stars end their lives as core-collapse supernovae (SNe). We focus on stripped-envelope SNe, whose progenitors have lost their outer hydrogen and possibly helium layers before explosion. We use these results to interpret new Hubble Space Telescope observations of the site of the broad-lined Type Ic SN 2002ap, 14 years post-explosion. For a subsolar metallicity consistent with SN 2002ap, we expect a main-sequence (MS) companion present in about two thirds of all stripped-envelope SNe and a compact companion (likely a stripped helium star or a white dwarf/neutron star/black hole) in about 5% of cases. About a quarter of progenitors are single at explosion (originating from initially single stars, mergers, or disrupted systems). All of the latter scenarios require a massive progenitor, inconsistent with earlier studies of SN 2002ap. Our new, deeper upper limits exclude the presence of an MS companion star >8–10

M

⊙

, ruling out about 40% of all stripped-envelope SN channels. The most likely scenario for SN 2002ap includes nonconservative binary interaction of a primary star initially

≲
23

M

⊙

. Although unlikely (<1% of the scenarios), we also discuss the possibility of an exotic reverse merger channel for broad-lined Type Ic events. Finally, we explore how our results depend on the metallicity and the model assumptions and discuss how additional searches for companions can constrain the physics that govern the evolution of SN progenitors.
La croissance a-t-elle un avenir ?
Authors: Galiana Lino
Published: June 2017

Le ralentissement des gains de productivité dans les pays développés, malgré la transition vers des économies numérisées, le vieillissement de la population ou encore l’excès d’épargne au niveau mondial, justifient de s’interroger sur l’entrée dans un régime de stagnation séculaire. Ces craintes sur les perspectives de croissance de long terme sont-elles justifiées ?
La Marche mondiale des femmes et la souveraineté alimentaire comme nouvel enjeu féministe
Authors: Masson Dominique , Conway Janet
Published: June 2017

Cet article s’intéresse à l’action de la Marche mondiale des femmes sur le terrain de la souveraineté alimentaire. À l’aide de données recueillies dans ses documents organisationnels et d’entretiens avec une quarantaine de ses représentantes, les auteures montrent comment l’engagement de la Marche envers l’enjeu de la souveraineté alimentaire illustre certains de ses traits les plus marquants comme forme spécifique de militantisme féministe transnational, notamment son ancrage dans les conditions de vie et de travail des femmes des secteurs populaires, ainsi que sa politique d’alliances avec des mouvements mixtes. L’article accorde une place centrale à l’agentivité des femmes rurales et paysannes du Sud et au travail de resignification qui a permis de constituer la souveraineté alimentaire en nouvel enjeu féministe, ainsi qu’aux effets combinés de ces facteurs sur le féminisme de la Marche.
Sur la faculté de (ne pas) juger
Authors: Guzda Fred
Published: June 2017

En assignant l’étude de la relation esthétique à celle de la faculté de juger, Kant a entériné un mariage non seulement durable mais aussi hiérachiquement défini par la gouvernance de la seconde sur la première. Nous souhaiterions nous arrêter sur ce contrat pour chercher à savoir si, quant à la relation esthétique, le jugement est une figure ultime et nécessaire. Comment penser, dans le cas contraire, une relation esthétique sans jugement ? Comment dissocier la critique du goût de l’esthétique ? Peut-être en maintenant puis faisant jouer la possibilité d’une distinction, voire d’une opposition, qui subsiste dans toute situation de jugement, selon qu’on la considère comme l’exercice toujours empirique et circonstanciel d’une expérience sensible au sens large, comme l’on juge, par exemple, d’une distance, ou bien qu’on la détermine a priori selon les règles, voire les réglages auxquels elle finit par s’adapter, où cette même distance devient mesurable et mesurée, c’est-à-dire dont l’expérience est perdue au profit de la constitution d’un objet commun.
L’art du possible
Authors: Bogue Ronald , Dosso Catherine
Published: June 2017

Deleuze traite le concept de « possible » en deux sens différents : l’un est restrictif et renvoie au domaine du prédictible, du praticable, du plausible ou du concevable ; le second est non-restrictif et dénote, hors de toute orthodoxie du sens commun, une ouverture vers quelque chose de nouveau. Le sens restrictif du « possible » est clairement associé par Deleuze au concept de « l’ Autre a priori » dans son essai sur Tournier Vendredi et il est opposé au virtuel bergsonien dans Différence et Répétition . L’usage du concept dans son sens non-restrictif est particulièrement évident dans Cinema 1 et Cinéma 2 ainsi que dans Qu’est-ce que la philosophie ? . Dans ces ouvrages, le « possible » est directement associé à l’art envisagé comme invention de nouveaux modes d’existence et d’un nouveau peuple à venir.
Le formalisme valéryen : une exigence esthétique au service de la réappropriation du sujet
Authors: Launois Anne
Published: June 2017

Cet article étudie la conception de l’expérience esthétique qui se dégage de la lecture des Cahiers de Paul Valéry. Marquée par un formalisme rigoureux, la pensée de Valéry révèle qu’au-delà de l’exigence esthétique, il s’agit d’un projet plus large : celui de modifier l’expérience dans son ensemble. Au regard de cette ambition, l’importance accordée à la forme de l’œuvre se justifie par le fait qu’elle incarne un effort de structuration et d’activité mentale. Celui-ci impose l’œuvre d’art comme un mode inédit de rapport au réel et engage l’artiste comme les spectateurs à s’émanciper de la contingence de l’expérience commune.
Cosmopolitique de la laideur
Authors: Sarafidis Karl
Published: June 2017

Tandis que l’ensemble de la tradition philosophique interroge l’idéal de beauté à partir du concept de pureté, Héraclite nous donne à penser un beau impur et contrarié, comme caractéristique d’un monde fait de mélanges désordonnés. Dans leur aspiration à une pure beauté, les penseurs font abstraction de cette dimension cosmologique. Or, ce geste est lourd de conséquences politiques dans la mesure où il contribue à la condamnation de la laideur et de la diversité humaines, et de ce fait à la clôture du monde.
Le travail des juristes peut-il être qualifié de scientifique ? Réflexions au départ d’un récent appel à la monosémie du langage juridique
Authors: Van der Noot Olivier
Published: June 2017

La présente étude constitue une réponse au texte de Boris Barraud publié dans le numéro 76/2016 de la Revue interdisciplinaire d’études juridiques sous le tire « La science et la doctrine juridiques à l’épreuve de la polysémie des concepts ». Dans une première partie, cette réplique présente synthétiquement les principales idées qu’articule le plaidoyer de Boris Barraud en faveur d’un langage juridique monosémique, conçu comme une condition nécessaire mais non suffisante de la scientificité des études juridiques. Dans une seconde partie, l’étude tâche d’énumérer de manière constructive les objections qu’appelle un tel plaidoyer.
L’analyse économique du droit constitutionnel
Authors: Lanneau Régis
Published: June 2017

L’analyse économique du droit constitutionnel reste encore confidentielle parmi les juristes de tradition francophone. Cette situation est surprenante. En effet, cette analyse reprend très largement, en les développant, les analyses développées par les premiers penseurs du droit constitutionnel. Plus encore, par sa systématisation, elle offre des outils permettant d’explorer les mécanismes institutionnels et les doctrines constitutionnelles traditionnelles. Cet article a pour objet de convaincre de la pertinence de cette analyse et de sa puissance en droit constitutionnel.
L’analyse économique du juge constitutionnel
Authors: Harnay Sophie
Published: June 2017

L’analyse économique du droit analyse le comportement du juge constitutionnel et la production par lui de décisions juridiques comme le résultat de motivations et de facteurs relevant d’une logique individuelle et essentiellement économique. Dans ce cadre analytique, les juges constitutionnels sont donc conçus comme des agents économiques rationnels, poursuivant des objectifs personnels (pouvoir, prestige et réputation, promotion…), politiques et idéologiques. En dépit des limites manifestes associées à une application directe de l’analyse économique des comportements judiciaires aux cours constitutionnelles, plusieurs travaux économétriques récents mettent en évidence l’influence marquée des préférences politiques des juges constitutionnels sur leurs décisions, en France et à l’étranger.
L’ordure alphabétique
Authors: Taïeb Lucie
Published: June 2017

Résumé D’Aube à Cimetières
À quel titre ?
Authors: Macher Sabine
Published: June 2017

Résumé Sabine Macher rêve pour Suzanne Doppelt
Le prince / 3
Authors: Messina Aïcha Liviana
Published: June 2017

Résumé Ejercito. L’avenue de l’armée
Le vent tout rouge
Authors: Rabau Sophie
Published: June 2017

Résumé Chronique / Sabotage littéraire, saison 2
Les premières phrases ne sont généralement pas au début des romans
Authors: Pennanech Florian , Rabau Sophie
Published: June 2017

Résumé Promesses
Un deux un deux
Authors: Burger Léna
Published: June 2017

Résumé Commencer une radio
L’homme vert de la page blanche
Authors: Vaugelade Anaïs
Published: June 2017

Résumé Dessiner
Tout au contraire d’une effraction
Authors: Rabau Sophie
Published: June 2017

Résumé Sur les commencements musicaux
La technologie peut-elle être l’une des composantes de la competence collective ? Le cas de l’utilisation d’une technologie de viticulture de precision au sein d’une exploitation
Authors: Moreiro Leslie
Published: June 2017

Nous cherchons ici à savoir si la technologie peut être l'une des composantes de la compétence collective. Une revue de la littérature permet d'identifier les différents attributs de la compétence collective, mais aussi de voir quels sont les éléments que la technologie est susceptible d’apporter à la compétence. La recherche présentée concerne l’analyse qualitative d’un cas d’utilisation d’une technologie de viticulture de précision. Il s’agit d’exposer la compétence liée à l’utilisation d’un capteur de vigueur au sein d’une exploitation vitivinicole tout en présentant l’équipe de travail mettant en œuvre cette compétence. L’analyse de ce cas permet d’étendre l’analyse des attributs de la compétence collective tant aux groupes de travail qu’à la technologie qu’ils utilisent.
Proposition d’une mesure du capital humain : entre comportement organisationnel, competence et creativite. Le modele des 3C de la chaire du capital humain et de la performance globale de Bordeaux
Authors: Goujon Belghit Anne , Trébucq Stéphane
Published: June 2017

Les travaux de la chaire capital humain de l'université de Bordeaux ont conduit à retenir trois notions fondamentales pour les salariés : leurs compétences, leur comportement organisationnel et leur créativité. La mise au point d'un questionnaire qui s'en est suivie a été testée dans 3 organisations, un laboratoire universitaire, un établissement d'hébergement de personnes âgées et une agence d'intérim. L'analyse des 204 réponses collectées montre effectivement un lien entre les pratiques de gestion des ressources humaines et les variables individuelles de créativité ou de comportement. L'engagement apparaît aussi une variable essentiellement liée positivement au degré de créativité et d'attachement à la structure. Certains résultats montrent également la difficulté de certaines organisations à fidéliser les éléments les plus créatifs parmi leurs salariés. De telles observations montrent l'intérêt d'un tel diagnostic et fournissent des pistes opérationnelles d'amélioration des pratiques de management.