nils-herrmann/clean_scirepeval huggingface dataset:
Analysis of salinization processes in the coastal carbonate aquifer of Porto Torres (NW Sardinia, Italy)
Year: 2012

The Porto Torres (NW Sardinia) coastal aquifer is hosted in the carbonate rocks of the Miocene succession, which fills a NNW oriented half graben. This aquifer is an important contributor to the fresh water supply of the local area. It is increasingly being degraded by salinization processes, mainly associated with intense groundwater over exploitation. A combined hydrochemical and hydrogeological study has been carried out to identify the origin of the salinity in the groundwater. The behavior of the major ions showed that the changes in the chemical composition of the groundwater have been mainly controlled by the encroachment of seawater, accompanied by cation exchange reactions. Since seawater intrusion is a dynamic process, an Hydrochemical Facies Evolution Diagram, HFE D (Gimenez Forcada, 2010) approach was taken to establish whether the aquifer was in the seawater intrusion or in the freshening phase. The assessment model developed provides regional authorities with a basic tools for sustainable water management in the framework of multi disciplinary research activities aiming to combat and/or mitigate desertification and land degradation processes.
Constraint corrected fracture failure criterion based on CTOD/CTOA
Venue: International Journal of Fracture
Year: 2018

In engineering design, a difficulty has always existed in those standard laboratory tests that cannot accurately predict the behavior of large structures like pipelines due to the different constraint levels. At present, extensive work has been done to characterize the constraint effects on fracture toughness by introducing a second parameter, while the systematic research on constrained transformation is inadequate. To address this issue, the ductile fracture process of X65 SENB specimen is simulated through the finite element method coupled with the Gurson Tvergaard Needelman model. The parameters crack tip opening displacement (CTOD) and crack tip opening angle (CTOA) are chosen to characterize the fracture behaviors. The effects of specimen thickness on fracture toughness based on CTOD/CTOA and constraints ahead of crack tips in SENB specimen are studied. The results indicate that the critical values of CTOD/CTOA decrease with the increase of specimen thickness, but the constraint parameters are opposite. Furthermore, it finds that there is a near linear relationship between critical values of CTOD/CTOA and the stress constraint ahead of the crack tip. Thus, a constraint corrected fracture failure criterion based on CTOD/CTOA is proposed, which can be used for the prediction and simulation of stable tearing crack growth in specimens and structures, made of this steel with any thickness value.
Bipartite output consensus for heterogeneous linear multi agent systems with fully distributed protocol
Venue: J. Frankl. Inst.
Year: 2019

This paper addresses the problem of bipartite output consensus of heterogeneous multi agent systems over signed graphs. First, under the assumption that the sub graph describing the communication topology among the agents is connected, a fully distributed protocol is provided to make the heterogeneous agents achieve bipartite output consensus. Then for the case that the topology graph has a directed spanning tree, a novel adaptive consensus protocol is designed, which also avoids using any global information. Each of these two protocols consists of a solution pair of the regulation equation and a homogeneous compensator. Numerical simulations show the effectiveness of the proposed approach.
A fully integrated 77GHz FMCW radar system in 65nm CMOS
Venue: 2010 IEEE International Solid State Circuits Conference (ISSCC)
Year: 2010

Millimeter wave anti collision radars have been widely investigated in advanced CMOS technologies recently. This paper presents a fully integrated 77GHz FMCW radar system in 65nm CMOS. The FMCW radar transmits a continuous wave which is triangularly modulated in frequency and receives the wave reflected from objects. As can be illustrated in Fig. 11.2.1, for a moving target, the received frequency would be shifted (i.e. Doppler shift) resulting in two different offset frequencies f and f for the falling and rising ramps. Denoting the modulation range and period as B and Tm, respectively, we can derive the distance R and the relative velocity VR as listed in Fig. 11.2.1, where fc represents the center frequency and c the speed of light.
Increased Risk of Fragility Fractures among HIV Infected Compared to Uninfected Male Veterans
Venue: PloS one
Year: 2011

HIV infection has been associated with an increased risk of fragility fracture. We explored whether or not this increased risk persisted in HIV infected and uninfected men when controlling for traditional fragility fracture risk factors.  Cox regression models were used to assess the association of HIV infection with the risk for incident hip, vertebral, or upper arm fracture in male Veterans enrolled in the Veterans Aging Cohort Study Virtual Cohort (VACS VC) We calculated adjusted hazard ratios comparing HIV status and controlling for demographics and other established risk factors. The sample consisted of 119,318 men, 33% of whom were HIV infected (34% aged 50 years or older at baseline, and 55% black or Hispanic) Median body mass index (BMI) was lower in HIV infected compared with uninfected men (25 vs. 28 kg/m2; p<0.0001) Unadjusted risk for fracture was higher among HIV infected compared with uninfected men [HR: 1.32 (95% CI: 1.20, 1.47) After adjusting for demographics, comorbid disease, smoking and alcohol abuse, HIV infection remained associated with an increased fracture risk [HR: 1.24 (95% CI: 1.11, 1.39) However, adjusting for BMI attenuated this association [HR: 1.10 (95% CI: 0.97, 1.25) The only HIV specific factor associated with fragility fracture was current protease inhibitor use [HR: 1.41 (95% CI: 1.16, 1.70)  HIV infection is associated with fragility fracture risk. This risk is attenuated by BMI.
Academic Anxiety towards Academic Achievement among Secondary School Students: A Psychological Study of Samastipur District, India
Year: 2020

Quick Response Code Abstract: Psychological stress, anxiety makes bad and creates a problematic situations on students to perform better. The factors collectively hamper their performance leading to low academic achievement. Having surveyed the literature, it has been observed that in Bihar state a few studies have been witnessed especially in the field of academic anxiety and academic achievement of the students in last decades. Hence, the present study is aimed to fill that gap and efforts are made to find out the levels of anxiety towards academic achievement. Thus, for the present study one hundred eighty (N=180) students which comprises the students obtained above 70 marks (n=60) 60 to 69 (n=60) and below 60 marks obtained by the students in the half yearly examinations (n=60) of IX th standard students studying in government schools located in and around the area of Samastipur district of North Bihar, India were selected randomly. For collecting the data on academic anxiety a scale "Academic Anxiety Scale for Children" (AASC) developed by Singh and Gupta (2005) was used and on the other hand, academic achievement was measured on the basis of performance of half yearly examination of school test. Having collected the data on the items of the test, the individual scores were obtained as per norms and procedure of the tests for giving statistical treatment. Obtained results revealed that there are significant differences between the different groups of students in terms of their degree of academic anxiety towards their academic achievement, although all students had shown moderate levels of academic anxiety. Obtained results have been discussed in detail by giving appropriate reasons in the context of North Bihar, India.
Prediction of dynamic properties of ultra high performance concrete by an artificial intelligence approach
Venue: Adv. Eng. Softw.
Year: 2019

Significant advances in new generation of concrete led to construction of ultra high performance concrete (UHPC) Since the demands of this engineering cementitious material have been increased, investigation on mechanical behaviour of this material is an interesting topic in today's research programs. Over the years, strain rate sensitive behavior of UHPC material has been studied by experimental tests. In the current research, an artificial intelligence (AI) system is implemented which can predict dynamic mechanical properties of UHPCs constructed by various mixtures. This system is able to predict elastic modulus, compressive strength and tensile strength, all under high rate of loading. The system is developed within the framework of case based reasoning (CBR) methodology as a problem solving AI method. CBR is a learning methodology which utilizes similar previous cases to solve particular new problems. In this paper, case base of the implemented system is enriched by a literature study of numerous researches which tested various UHPCs. The proposed intelligent system has been applied to reduce human expert dependency and avoid time consuming experimental tests. The implemented system is evaluated by available results from experiments under high rate of loading.
Long transients in ecology: Theory and applications.
Venue: Physics of life reviews
Year: 2019

This paper discusses the recent progress in understanding the properties of transient dynamics in complex ecological systems. Predicting long term trends as well as sudden changes and regime shifts in ecosystems dynamics is a major issue for ecology as such changes often result in population collapse and extinctions. Analysis of population dynamics has traditionally been focused on their long term, asymptotic behavior whilst largely disregarding the effect of transients. However, there is a growing understanding that in ecosystems the asymptotic behavior is rarely seen. A big new challenge for theoretical and empirical ecology is to understand the implications of long transients. It is believed that the identification of the corresponding mechanisms along with the knowledge of scaling laws of the transient's lifetime should substantially improve the quality of long term forecasting and crisis anticipation. Although transient dynamics have received considerable attention in physical literature, research into ecological transients is in its infancy and systematic studies are lacking. This text aims to partially bridge this gap and facilitate further progress in quantitative analysis of long transients in ecology. By revisiting and critically examining a broad variety of mathematical models used in ecological applications as well as empirical facts, we reveal several main mechanisms leading to the emergence of long transients and hence lays the basis for a unifying theory.
Research on the Motivating Modes of Ecological Products Purchase Based on Consumer Value
Year: 2011

This paper breaks through mainstream research paradigm of attitude behavior relationship,distinguishes the motivating modes of self motivation and other motivation on the basis of self determination theory,checks the influence of different types of consumer value on two kinds of motivating modes,and constructs the study model of motivating modes of ecological product purchase based on consumer value.The empirical results suggest that self oriented and other oriented consumer value of ecological products has different effect on the self motivation and other motivation respectively.The above results deepen the understanding of the inherent mechanism of consumer ecological behavior,provides a basis for the enterprise's ecological marketing strategies and helps the Government enhancing the ecological relevance and effectiveness of consumer policy.
Walking off the Edge of the World: Sacrifice, Chance, and Dazzling Dissolution in the Book of Job and Ursula K. Le Guin's "The Ones Who Walk Away from Omelas"
Year: 2016

This article compares Ursula K. Le Guin's short story, "The Ones Who Walk Away from Omelas" (1974) to the book of Job. Both stories feature characters who can be read as innocent victims, but whereas the suffering in Le Guin's tale benefits many, Job is the victim of useless suffering. Exploring this difference, I draw on George Bataille's theory of sacrifice as useless expenditure, and developed his concept of the "will to chance" in my reading of how each set of characters responds to the complex moral impasses faced. In the end, I read both stories as being about the struggle to create a viable, meaningful life in a world that is unpredictable and structurally unjust.
Linked data quality of DBpedia, Freebase, OpenCyc, Wikidata, and YAGO
Venue: Semantic Web
Year: 2018

In recent years, several noteworthy large, cross domain and openly available knowledge graphs (KGs) have been created. These include DBpedia, Freebase, OpenCyc, Wikidata, and YAGO. Although extensively in use, these KGs have not been subject to an in depth comparison so far. In this survey, we provide data quality criteria according to which KGs can be analyzed and analyze and compare the above mentioned KGs. Furthermore, we propose a framework for finding the most suitable KG for a given setting.
Dynamics Research and Automatic Control of Technological Equipment with Electrohydraulic Drive
Venue: 2019 International Russian Automation Conference (RusAutoCon)
Year: 2019

The paper considers the issues of dynamics research and automatic control of technological equipment with electrohydraulic drives. The purpose of the research is the analysis of the main dynamic characteristics of technological equipment with an electrohydraulic drive and the development of method for synthesizing ACS for the equipment that takes into account stochastic perturbation and observation noise. The method includes the following main stages: development of the typical mathematical model of technological equipment with an electrohydraulic drive as the object of automatic control; synthesis of the optimal filter of the stochastic system and solving the deterministic task for synthesis of the optimal linear controller. The research of the dynamic characteristics of the automatic control systems for various drives was performed. The calculations of the transient processes for movements and speeds of working units are carried out, the influence of the system parameters on the quality of the transient processes is shown. The recommendations on the choice of optimal parameters are given. The research results can be used to improve technological equipment, in particular, to expand its functionality and improve dynamic characteristics.
Arguing from experience using multiple groups of agents
Venue: Argument Comput.
Year: 2011

A framework to support "Arguing from Experience" using groups of collaborating agents (termed participant agents/players) is described. The framework is an extension of the PISA multi party arguing from experience framework. The original version of PISA allowed n participants to promote n goals (one each) for a given example. The described extension of PISA allows individuals with the same goals to pool their resources by forming "groups" The framework is fully described and its effectiveness illustrated using a number of classification scenarios. The main finding is that by using groups more accurate results can be obtained than when agents operate in isolation.
Investigation of perioperative safety and clinical results of one stage bilateral total knee arthroplasty in selected low risk patients
Venue: Journal of Orthopaedic Surgery and Research
Year: 2018

BackgroundAn increased perioperative complication rate has been a concern with one stage bilateral total knee arthroplasty (TKA) The purpose of this study was to retrospectively investigate the perioperative safety and clinical results of one stage bilateral TKA in selected low risk patients.MethodsSixty seven patients who received one stage bilateral TKAs for osteoarthritis who were American Society of Anesthesiology (ASA) class 1 or 2 were included in this study. Perioperative complications, blood loss, transfusion rate, blood laboratory results, and clinical results were evaluated up to 1 year after surgery.ResultsNo major complications (deep infection, pulmonary embolism, cerebrovascular accident, myocardial infarction, death, or removal or revision of the implants) were observed. The average total blood loss was 1139.5 ml. The transfusion rate was 95.5% Postoperative hemoglobin level and C reactive protein level gradually improved up to postoperative day 21 (P 0.01) Bilateral knee extension knee angles and clinical scores improved postoperatively as compared with preoperative values (P 0.01).ConclusionsAlthough total blood loss and transfusion rate can be high, this preliminary case series suggested that the one stage bilateral TKA in ASA class 1 or 2 patients can have high perioperative safety levels, and good clinical results can be obtained up to 1 year after surgery. If low risk patients are selected for bilateral TKA, a one stage procedure can be beneficial for patients, with a minimal increase in the risk of complications.
Enter Electricity: An Allegory's Stage Appearance between Verite and Variete
Year: 2015

At the end of the 19th century, electricity made its entrance on stage, embodied and personified by female dancers. Analysing one such entrance of electricity in a celebratory ballet pantomime, shown during the 1891 International Electrotechnical Exhibition in Frankfurt, the paper contextualizes the allegorical appearance within an in depth discussion of the exhibition and its aesthetics. Stressing the ideological implications of the gendered embodiment, and its imaginary and dissimulative potentials, the analysis focuses on the necessity of the spectacular arrangement for electricity's entrance at the end of the 19th century and shows that it is not only indebted to traditions of allegorical personifications but also to the vulgarized presentation of the naked female in popular theatrical setups like the cafe chantants, music halls and Tinteltangel. A mixture of sparsely clad limbs and antique style drapery served to naturalize the new electric power and obscure the underlying social tensions. The unseen engineers in the audience who made the dancers appear and shine with the help of the machinery they prided themselves on were faced by women on stage, openly and seducingly returning their gaze. Deviating from the voyeuristic theatre dispositif of the literary bourgeoisie, the industrial intelligentsia was rehearsing an exhibitionist theatricality that reconfigured how power was exercised in spectacles.
Rebuttal to letter to the editor. Dr. Qin (Volume 51, 2008)
Venue: Regulatory toxicology and pharmacology RTP
Year: 2008

Dear Sir, We appreciate the recommendation in the recent letter of Dr. Qin (Volume 51, 2008) that 'the interaction between chemicals, gut microbiota, and the host would be a new area worthy of further exploration" This may be a currently neglected field, but it is not new. Dr. Qin's letter omits to mention any of the established history of the subject, including the pioneering studies by Dr. Ron Scheline, and research by the late Dr. R. Tecwyn Williams, who elucidated the major role of the 'gut microflora" in the metabolic intoxication and detoxication of many chemicals. The topic was reviewed (Williams, 1972; Scheline, 1973) and became the subject of a book published by a colleague at St. Mary's Hospital Medical School (Hill, 1995) Some early examples of intestinal bacterial metabolism were the reduction of the drug precursor Prontosil to the active antibacterial sulfanilamide (Gingell et al. 1971) and microbial hydrolysis of the synthetic sweetener cyclamate to the toxic cyclohexylamine (Drasar et al. 1972) Dr. Williams' legacy was the foundation of the modern field of xenobiotic metabolism (ISSX) which was derived from a vast body of work on the metabolism of xenobiotic chemicals and its influence on their toxicity and/or therapeutic action, and which is enshrined in his classic book Detoxication Mechanisms (Williams, 1959)
An Enhanced Cyber Attack Attribution Framework
Venue: TrustBus
Year: 2018

Advanced Persistent Threats (APTs) are considered as the threats that are the most challenging to detect and defend against. As APTs use sophisticated attack methods, cyber situational awareness and especially cyber attack attribution are necessary for the preservation of security of cyber infrastructures. Recent challenges faced by organizations in the light of APT proliferation are related to the: collection of APT knowledge; monitoring of APT activities; detection and classification of APTs; and correlation of all these to result in the attribution of the malicious parties that orchestrated an attack. We propose the Enhanced Cyber Attack Attribution (NEON) Framework, which performs attribution of malicious parties behind APT campaigns. NEON is designed to increase societal resiliency to APTs. NEON combines the following functionalities: (i) data collection from APT campaigns; (ii) collection of publicly available data from social media; (iii) honeypots and virtual personas; (iv) network and system behavioural monitoring; (v) incident detection and classification; (vi) network forensics; (vii) dynamic response based on game theory; and (viii) adversarial machine learning; all designed with privacy considerations in mind.
Self criticism, Strivings and Aggressive Behavior in Spanish Children: The Two Sides of Self Oriented Perfectionism
Venue: The Spanish Journal of Psychology
Year: 2019

This study analyzes the relationship between the two intrapersonal perfectionism dimensions (i.e. Self Oriented Perfectionism Critical, SOP C, and Self Oriented Perfectionism Strivings, SOP S) and the components of aggressive behavior (cognitive, emotional and motor) in a sample of 804 (48.3% females) Spanish students between the ages of 8 and 11 (M 9.57; DE 1.12) The Spanish versions of the SOP C and SOP S subscales of the Child/Adolescent Perfectionism Scale and the Aggression Questionnaire were used. Students with high SOP C scored significantly higher (p .001) than their peers with low SOP C on all components of aggressive behavior. The magnitude of these differences (Cohen's d index) ranged from .40 to .59. In contrast, non significant statistical differences were found between students with high and low SOP S. Moreover, logistic regression analysis revealed that SOP C significantly and positively predicted high Hostility, Anger and Physical and Verbal Aggression, whereas none of these components were significantly predicted by SOP S (95% CI) Results are discussed, taking into account the debate on the conceptualization and nature of intrapersonal perfectionism.
Full digital driving controller of permanent magnetic linear voice coil motor used for direct driving valve
Year: 2009

The invention relates to a full digital driving controller of a permanent magnetic linear voice coil motor used for a direct driving valve, consisting of three parts: a digital controller, a power circuit and a signal detection circuit; the digital controller circuit comprises a 32 bit floating point DSP, a field programmable logic device FPGA and an external Flash ROM; the power circuit comprises a high speed optical coupling isolation circuit, and an H bridge power main circuit consisting of intelligent power modules IPM; the signal detection circuit comprises an A/D converter, a multi path analogue switch, a Hall current sensor used for detecting the moving coil winding current, a non contact eddy current displacement sensor used for detecting the position of the moving coil and an amplification and active power filter circuit for analogue signals. The full digital driving controller of the permanent magnetic linear voice coil motor used for the direct driving valve has the advantages of high integration, good extensibility, high reliability, high frequency response and high precision.