bluuebunny/crossref_metadata_2025_split huggingface dataset:
Soil Fertility Assessment and Mapping of Agricultural Research Station, Jaubari, Illam, Nepal
Authors: Khadka Dinesh , Lamichhane Sushil , Shrestha Keshav , Joshi Sushila , Karna Manoj , Pant Buddhi B. , Yadav Surendra 
Published: August 2017

Soil fertility evaluation is a prerequisite factor for sustainable planning of a particular region. Considering this, a study was conducted to determine the soil fertility status of the Agricultural Research Station, Jaubari, Illam, Nepal. In total, 78 soil samples were collected using soil sampling auger randomly from a depth of 0-20 cm. The texture, pH, OM, N, P2O5, K2O, Ca, Mg, S, B, Fe, Zn, Cu and Mn status of the samples were analyzed in the laboratory of Soil Science Division, Khumaltar by following standard analytical methods. The soil fertility maps of the observed parameters were prepared through Arc-GIS 10.1 software. The observed data revealed that soil was brown (10YR 4/3), dark grayish brown (10YR 4/2), dark yellowish brown (10YR 4/4) and yellowish brown (10YR 5/6) in colour, and the structure was granular. Similarly, the sand, silt and clay content were 53.84±1.06%, 34.34±0.83% and 11.82±0.47%, respectively and were indicated as sandy loam and loam in texture. The soil was very acidic (pH 3.85±0.04), and very low in available boron (0.26±0.06mg/kg) and available sulphur (0.59±0.15mg/kg). The available calcium (188.7±31.30mg/kg), available magnesium (50.98±5.0mg/kg) and available manganese (5.16±0.90mg/kg) were low. Likewise, available potassium (110.91±7.30mg/kg), available zinc (1.19±0.31mg/kg) and available copper (0.95±0.05mg/kg) content were medium. Similarly, organic matter (7.88±0.32%), total nitrogen (0.27±0.01%) and available phosphorus (36.53±5.66mg/kg) were high, and available iron (39.5±2.17 mg/kg) was very high. International Journal of EnvironmentVolume-6, Issue-3, Jun-Aug 2017, page: 46-70
Simulationsbasierte Konfiguration der Produktionsplanung und -steuerung
Authors: Dombrowski Uwe , Dix Yannick 
Published: August 2017

KurzfassungDie Adaption der Produktionsplanung und -steuerung (PPS) an die unternehmensindividuellen Rahmenbedingungen stellt einen entscheidenden Wettbewerbsvorteil dar. Um auf Nachfrageschwankungen und wechselnde Auftragscharakteristika angemessen reagieren zu können, ist eine kontinuierliche Anpassung der PPS-Konfiguration erforderlich. Für die Identifikation effektiver Planungs- und Steuerungsansätze stellt die Ablaufsimulation ein wirkungsvolles Werkzeug bereit. Der vorliegende Beitrag beschreibt einen Ansatz, um auf Basis derartiger Simulationsmodelle, Verbesserungspotenziale für die PPS-Konfiguration zu identifizieren. Die in einer Ablaufsimulation zu evaluierenden Potenziale sind hierbei das Ergebnis eines simulierten Verhandlungsprozesses intelligenter Objekte im Rahmen einer Agentenbasierten Simulation.
Gewinde-Wirbeln und Fräsen schwer zerspanbarer Werkstoffe
Authors: Schulze Volker , Sellmeier Volker , Abele Eberhard , Kannwischer Markus 
Published: August 2017

Kurzfassung
In zwei Benchwerk-Forschungsprojekten haben Projektpartner aus Indus-trie und Wissenschaft in den vergangenen drei Jahren Hochleistungsfertigungsverfahren entwickelt, die sich insbesondere durch eine innovative Werkzeugtechnik auszeichnen. Dazu zählt zum einen das „Dreh-Wirbeln von Gewinden“ (Projekt GeWinDe), das vor allem mit geringem Werkzeugverschleiß und kurzen Fertigungszeiten punkten kann. Zum anderen lassen sich mithilfe eines neu entwickelten Zerspanungsverfahrens (Projekt SchwerSpan) Titanlegierungen effizient bearbeiten.
Intuitive Programmierung für die Mensch-Roboter-Kollaboration
Authors: Müller Nico , Wagner Maximilian , Heß Peter 
Published: August 2017

Kurzfassung
Aufgrund des wachsenden Einsatzes von Prozessen, in denen Mensch und Roboter zusammen und ohne Schutzzaun interagieren, wächst die Zahl der zu programmierenden sicheren Roboter in der Industrie. Ziel dieser Arbeit ist es, ein Prinzip der einfachen Programmierung zu zeigen, sodass auch Facharbeiter ohne große Programmierkenntnisse eine Mensch-Roboter-Kollaboration (MRK) erstellen können. Es wird ein Baukastenprinzip vorgestellt, mit dem Mensch-Roboter-Interaktionen durch verschieden zusammengesetzte Bausteine aufgebaut beziehungsweise programmiert werden können. Zum Schluss verdeutlichen zwei Beispiele an einem Leichtbauroboter das ausgeführte Prinzip der Programmierung.
Lack of Trex1 Causes Systemic Autoimmunity despite the Presence of Antiretroviral Drugs
Authors: Achleitner Martin , Kleefisch Martin , Hennig Alexander , Peschke Katrin , Polikarpova Anastasia , Oertel Reinhard , Gabriel Benjamin , Schulze Livia , Lindeman Dirk , Gerbaulet Alexander , Fiebig Uwe , Lee-Kirsch Min Ae , Roers Axel , Behrendt Rayk 
Published: August 2017

Abstract
Biallelic mutations of three prime repair exonuclease 1 (TREX1) cause the lupus-like disease Aicardi–Goutières syndrome in which accumulation of a yet unknown endogenous DNA substrate of TREX1 triggers a cyclic GMP–AMP synthase-dependent type I IFN response and systemic autoimmunity. Products of reverse transcription originating from endogenous retroelements have been suggested to be a major substrate for TREX1, and reverse transcriptase inhibitors (RTIs) were proposed as a therapeutic option in autoimmunity ensuing from defects of TREX1. In this study, we treated Trex1−/− mice with RTIs. The serum RTI levels reached were sufficient to block retrotransposition of endogenous retroelements. However, the treatment did not reduce the spontaneous type I IFN response and did not ameliorate lethal inflammation. Furthermore, long interspersed nuclear elements 1 retrotransposition was not enhanced in the absence of Trex1. Our data do not support the concept of retroelement-derived cDNA as key triggers of systemic autoimmunity in Trex1-deficient humans and mice and motivate the continuing search for the pathogenic IFN-inducing Trex1 substrate.
PAISAGEM CULTURAL E ESPAÇOS DE REPRESENTAÇÃO DA COLÔNIA ÁGUA BRANCA,MUNICÍPIO DE SÃO MATEUS DO SUL/PR
Authors: Lucena Liliane Monfardini Fernandes 
Published: August 2017

Os estudos sobre a temática da Paisagem Cultural têm sido retomados desde o final da década de 1970, a partir de uma releitura de sua concepção possibilitada pelo desenvolvimento da Geografia Humanista, a Geografia das Representações e o pensamento fenomenológico. Este amadurecimento conceitual foi imprescindível para sua revalorização no campo acadêmico e aplicação nas políticas públicas. Destaca-se nesta pesquisa a associação deste tema ao patrimônio cultural, pelos órgãos internacionais e nacionais, o que proporcionou ainda mais sua popularização, como a UNESCO (Organização das Nações Unidas para a Educação, a Ciência e a Cultura) e o IPHAN (Instituto do Patrimônio Histórico e Artístico Nacional), que criaram um instrumento de preservação denominado “Paisagem Cultural”. Partindo da tese de que a paisagem cultural deve ter a dimensão do mundo vivido dos seus moradores, propõe-se o desenvolvimento de uma metodologia que evidencie a duplicidade de sentido que a paisagem porta. A proposta está embasada em Henri Lefebvre, na tríade - práticas espaciais/espaços de representação/ representações do espaço e o objeto de estudo para aplicação desta metodologia foi a colônia agrícola Água Branca, situada no município de São Mateus do Sul/ PR. Desta forma, acredita-se que a Paisagem Cultural como espaço vivido converge para a compreensão tanto na perspectiva teórica da Geografia das Representações como na perspectiva aplicada, aos órgãos de preservação histórica e cultural.
Research on Consistent Pattern of Development of the Educators’ Ability to Self-Improvement
Authors: Fishman Boris , Kuzmina Bogdana , Fokina Olga , Fishbein Miron , Moskvina Natalya , Mashovetz Svetlana , Serezhnikova Raisa 
Published: August 2017

The educators’ ability to self-improvement is considered in the article by means of a special system. It can be represented as a three-level hierarchical model with fuzzy structural relationships. The intermediate level of this model contains components that enable the formation and development of the object of the upper level (educators’ ability to self-improvement): 1) motivational-valuable component; 2) the emotional-volitional component; 3) reflective-evaluative component; 4) cognitive component; 5) organizing component. The lower level of the model contains indicators. They make it possible to evaluate the degree of the selected components’ formation and the stage of the development of the investigated ability as a whole. Each state of the educators' ability to self-improvement is characterized by a tuple. The stage reached by the relevant components is the element of this tuple. According to self-assessments received from 214 lecturers and teachers, the most common states were defined. It has allowed to form a sequence of such states. The transitions between them describe the patterns of development of the educators' ability to self-improvement. The described technique allows us to characterize the development of this ability not only among educators, but also among professional managers, doctors, engineers in the field of electrical engineering and electronics, and others.
Some Characterizations of Exponential Distribution
Authors: Ahsanullah M. , Z. Anis M. 
Published: August 2017

There are some characterizations of the exponential distribution based on the relation of the maximum of two observations expressed as linear combination of the two observations. In this paper some generalizations of this known characterization of the exponential distribution using the relations between the maximum and minimum of independent and identically distributed random variables having absolutely continuous (with respect to Lebesgue measure) distribution function will be presented.
A Systematic Reservoir Simulation Study on Assessing the Feasibility of CO2 Sequestration in Shale Gas Reservoir with Potential Enhanced Gas Recovery
Authors: Zhan Jie , Yuan Qingwang , Fogwill Allan , Cai Hua , Hejazi Hossein , Chen Zhangxin , Cheng Shiqing 
Published: August 2017

Abstract
The application of horizontal well drilling coupled with the multistage fracturing technology enables commercial development of shale gas formations, which launches the energy revolution from conventional resources to unconventional resources. With the progress of understanding the nature of shale reservoirs, we find that some shale methane is stored as an adsorbed phase on surfaces of organic carbon. Meanwhile, laboratory and theoretical calculations indicate that organic-rich shale adsorbs CO2 preferentially over CH4. Shale gas reservoirs are recently becoming the promising underground target for CO2 sequestration. In the paper, systematic numerical simulations will be implemented to investigate the feasibility of CO2 sequestration in shale gas reservoirs and quantify the associated uncertainties.
First, a multi-continua porous medium model will be set up to present the matrix, nature fractures and hydraulic fractures in shale gas reservoirs. Based on this model, we will investigate a three-stage flow mechanism which includes convective gas flow mainly in fractures, dispersive gas transport in macro pores and multi-component sorption phenomenon in micro pores. To deal with this complicated three-stage flow mechanism simultaneously, analytical apparent permeability which includes slip flow and Knudsen diffusion will be incorporated into a commercial simulator CMG-GEM. A Langmuir isotherm model is used for CH4 and the multilayer sorption gas model, a BET model, is implemented for CO2. In addition, a mixing rule is introduced to deal with the CH4-CO2 competitive adsorption phenomenon.
In the paper, an integrated methodology is provided to investigate the CO2 sequestration process. Simulation results indicate that a shale gas reservoir is an ideal target for the CO2 sequestration. Even with the reservoir pressure maintenance due to the injection of CO2, the reservoir productivity is not enhanced. Hydraulic fracking which creates freeways for gas flow is the key to improve the reservoir performance. The multicomponent desorption/adsorption is a very important feature in a shale gas reservoir, which should be fully harnessed to benefit the CO2 sequestration process. In addition, we cannot ignore the contribution of slip flow and diffusion to the reservoir performance. Based on the methodology provided in this paper, we can easily deal with the apparent permeability effect using a commercial simulator platform.
The Inorganic Precipitation By CO2 and High Salinity Formation Water
Authors: Yuan Zhou , Liao Xinwei , Zhang Kuaile , Chen Zhiming 
Published: August 2017

Abstract
Carbon dioxide is commonly injected during secondary or tertiary recovery to enhanced oil recovery. While CO2 can also cause some precipitation damage. Usually scale ions (Ca2+, Mg2+) in water react with CO2 to form solid precipitation that can plug the pores. In this report, CO2 is injected into the high salinity formation water, which makes the problem of inorganic precipitation by reaction with scale ions. A number of static experiments have been conducted about various reservoir pressures and temperatures when the pH and scale ions content changes in a high temperature high pressure Reactor. Thus, the aim of this report is to determine how the presence of inorganic precipitation during CO2 injections and the factors affecting the amount of CO2 with high salinity water generating inorganic precipitation. Results from XPS and SEM images of precipitation are also provided. The results indicate that there are three stages in the reaction between carbon dioxide and high salinity formation water, and the third stage with high temperature or low pressure produced precipitation is the most important. PH less than 7 can still produce precipitation. The larger the PH and the scale of the ion content, the more precipitation; at first with low temperature or high pressure, and then with the high temperature or low pressure produced the largest amount of precipitation.

1. Introduction
CO2 flooding technology is an important technology developed in the 1980s, which has been widely paid attention to by all countries in the world [1]. However, compared with oil, gas and other geologic fluids, CO2 is an active gas, and when it was injected into the ground, it is very easy to react with the formation of fouling ions in stratum water to produce precipitation and eventually change the physical and chemical properties of the reservoir [2]. Especially, the change of reservoir permeability will seriously affect the underground storage capacity of CO2 [3], so it is necessary to study and discuss the CO2 and formation water interaction.
Performance Improvement of CO2-EOR By Production Control in a Heterogeneous 3D Model: Experimental and Numerical Simulation
Authors: Zhao Fenglan , Hao Hongda , Wang Zhixing , Hou Jirui , Fu Zhongfeng , Li Wenfeng , Wang Peng , Zhang Meng , Lu Guoyong , Lv Guangzhong 
Published: August 2017

Abstract
CO2-EOR is an effective technology for reducing CO2 emissions while enhancing oil recovery in ultra-low permeability reservoir, which has been performed in Shengli Oil Field, China since 2013 with cumulative CO2 injection of 12588 t by 2016. However, the area heterogeneity of reservoir resulted in serious gas channeling and poor production performance. Performance control methods including sweeping area regulation, differential pressure control and real-time producing regulation were proposed to enlarge sweeping area and improve CO2 utilization in areal heterogenous reservoir. 3D physical models of areal heterogeneity and five-spot pattern were utilized in the laboratory. Conventional CO2 flooding, sweeping area regulation, differential production pressure control and real-time producing regulation were conducted respectively in the 3D models, and the flooding efficiency was evaluated through oil recovery increments and changes of performance curves. Corescale numerical modeling was also built to study the profile improvements of CO2 flooding by the performance control methods.
Experimental and numerical simulation results showed that CO2 was displaced unevenly in the areal heterogeneous reservoir, leaving plenty of oil remained in the relatively high and relatively low permeability area. The oil recovery of CO2 flooding in areal heterogenous reservoir can be doubled by performance control methods of sweeping area regulation, differential pressure control or real-time producing regulation. The remaining oil in relatively low permeability area can be effectively displaced by sweeping area regulation, while both larger sweeping area and better CO2 flooding profile can be achieved by differential pressure control and real-time producing regulation. Higher productivity of individual well can be obtained in the early and middle stage of CO2 flooding by differential pressure control, while similar oil & gas production performance and longer displacement period of CO2 injection can be achieved by real-time producing regulation. The performance improvement of CO2 flooding by performance control methods provided a feasible technical strategy for enhancing oil recovery of areal heterogeneous reservoir in the oil field under the condition of a lower oil price.
Complexité et créativité : émergence, stabilité et dynamiques des collectifs
Authors: Ancori Bernard 
Published: August 2017

Dans le cadre d’un modèle formel de la structure et de l’évolution d’un réseau sociocognitif complexe d’acteurs individuels, cet article analyse les conditions d’émergence, de stabilisation et de disparition de collectifs, i.e. de groupes organisés et stables d’acteurs individuels, qui se comportent comme autant de sujets dotés d’intentionnalité – de sujets pluriels.
Le socle cognitif de chacun de ces derniers étant formé de représentations partagées par l’ensemble de ses membres, l’émergence de tels collectifs implique l’apparition de telles représentations. Cette apparition représente un premier phénomène créatif, immédiatement collectif, lié à la dimension extensive de l’apprentissage individuel lors de la communication sociale. La stabilisation progressive de tels collectifs résulte alors de la dimension intensive de cet apprentissage, réalisée simultanément à sa dimension extensive, et qui débouche sur l’apparition de routines cognitives. Ces dernières s’effacent parfois du niveau conscient des sujets individuels, et ainsi parfaitement ancrées, elles deviennent invisibles pour les collectifs de pensée concernés, qui se trouvent de ce fait pleinement stabilisés.
Chaque état du réseau contient une constellation de tels collectifs de tailles et de vocations diverses, mais dont certains poursuivent un même objectif. Ils entrent alors en concurrence du fait d’être centrés sur un objet commun que chacun d’eux voudrait gérer seul après avoir éliminé l’(les) autre(s) collectif(s) concerné(s). L’analyse de cette dynamique concurrentielle détaille les conditions de la suprématie de l’un des collectifs concernés sur l’autre (ou sur les autres). C’est alors le paysage de l’ensemble des collectifs qui se trouve modifié au terme toujours provisoire d’une telle dynamique, et se manifeste ainsi une seconde forme de créativité, cette fois-ci au niveau du réseau global.
Micro‐computed tomography: Applications for high‐resolution skeletal density determinations: An example using annually banded crustose coralline algae
Authors: Chan P. , Halfar J. , Norley C. J. D. , Pollmann S. I. , Adey W. , Holdsworth D. W. 
Published: August 2017

AbstractWarming and acidification of the world's oceans are expected to have widespread consequences for marine biodiversity and ecosystem functioning. However, due to the relatively short record of instrumental observations, one has to rely upon geochemical and physical proxy information stored in biomineralized shells and skeletons of calcareous marine organisms as in situ recorders of past environments. Of particular interest is the response of marine calcifiers to ocean acidification through the examination of structural growth characteristics. Here we demonstrate the application of micro‐computed tomography (micro‐CT) for three‐dimensional visualization and analysis of growth, skeletal density, and calcification in a slow‐growing, annually banded crustose coralline alga Clathromorphum nereostratum (increment width ∼380 µm). X‐ray images and time series of skeletal density were generated at 20 µm resolution and rebinned to 40, 60, 80, and 100 µm for comparison in a sensitivity analysis. Calcification rates were subsequently calculated as the product of density and growth (linear extension). While both skeletal density and calcification rates do not significantly differ at varying spatial resolutions (the latter being strongly influenced by growth rates), clear visualization of micron‐scale growth features and the quantification of structural changes on subannual time scales requires higher scanning resolutions. In the present study, imaging at 20 µm resolution reveals seasonal cycles in density that correspond to summer/winter variations in skeletal structure observed using scanning electron microscopy (SEM). Micro‐CT is a fast, nondestructive, and high‐resolution technique for structural and morphometric analyses of temporally banded paleoclimate archives, particularly those that exhibit slow or compressed growth or micron‐scale structures.
Remodeling Tau and Prion Proteins Using Nanochaperons
Authors: Bhattacharyya Sanjib , Kim Kyongwan , Teizer Winfried 
Published: August 2017

AbstractThere is increasing evidence that tau protein behaves in a prion‐like manner in tauopathy. The stabilization of tau protein using a small molecular compound can limit tauopathy associated morbidity that advances with ageing. Here, a lab‐on‐a‐chip experiment is reported, where gold citrate nanoparticles (5 nm, AuNPs) can remodel mutant tau protein (P301L) and prion, thus resolving the mutant tau‐ and prion‐mediated impairment of kinesin cargo transport on microtubules. It is found that tau protein is overexpressed in Alzheimer's disease (AD) patient serum samples and the tau conformational change can also be affected in human serum samples of AD when treated with AuNPs ex vivo. Similarly, AuNPs reorganizing the prion protein and inducing conformational changes of prions in AD serum have been observed, while having no effect on alpha‐synuclein in Parkinson patient serum. The mapping of AD serum mediated traffic jams, using particle tracking and mean square displacement analysis, and the observed recovery of uninterrupted processive motor functions by AuNP treatment show that kinesin cargo assays might be a useful method for future ex vivo validation of a targeted therapy against tauopathy before administration, a viable option to combat various neurodegenerative disorders arising from the susceptibility of amyloidogenic proteins toward aggregation.
Smart Electrochemical Energy Storage Devices with Self‐Protection and Self‐Adaptation Abilities
Authors: Yang Yun , Yu Dandan , Wang Hua , Guo Lin 
Published: August 2017

AbstractCurrently, with booming development and worldwide usage of rechargeable electrochemical energy storage devices, their safety issues, operation stability, service life, and user experience are garnering special attention. Smart and intelligent energy storage devices with self‐protection and self‐adaptation abilities aiming to address these challenges are being developed with great urgency. In this Progress Report, we highlight recent achievements in the field of smart energy storage systems that could early‐detect incoming internal short circuits and self‐protect against thermal runaway. Moreover, intelligent devices that are able to take actions and self‐adapt in response to external mechanical disruption or deformation, i.e., exhibiting self‐healing or shape‐memory behaviors, are discussed. Finally, insights into the future development of smart rechargeable energy storage devices are provided.