bluuebunny/crossref_metadata_2025 huggingface dataset:
Elections with Few Voters: Candidate Control Can Be Easy
Authors: Chen Jiehua , Faliszewski Piotr , Niedermeier Rolf , Talmon Nimrod
Published: July 2018

We study the computational complexity of candidate control in elections with few voters, that is, we consider the parameterized complexity of candidate control in elections with respect to the number of voters as a parameter. We consider both the standard scenario of adding and deleting candidates, where one asks whether a given candidate can become a winner (or, in the destructive case, can be precluded from winning) by adding or deleting few candidates, as well as a combinatorial scenario where adding/deleting a candidate automatically means adding or deleting a whole group of candidates. Considering several fundamental voting rules, our results show that the parameterized complexity of candidate control, with the number of voters as the parameter, is much more varied than in the setting with many voters.
A Knowledge Level Account of Forgetting
Authors: Delgrande James P.
Published: July 2018

Forgetting is an operation on knowledge bases that has been addressed in different areas of Knowledge Representation and with respect to different formalisms, including classical propositional and first-order logic, modal logics, logic programming, and description logics. Definitions of forgetting have been expressed in terms of manipulation of formulas, sets of postulates, isomorphisms between models, bisimulations, second-order quantification, elementary equivalence, and others. In this paper, forgetting is regarded as an abstract belief change operator, independent of the underlying logic. The central thesis is that forgetting amounts to a reduction in the language, specifically the signature, of a logic. The main definition is simple: the result of forgetting a portion of a signature in a theory is given by the set of logical consequences of this theory over the reduced language. This definition offers several advantages. Foremost, it provides a uniform approach to forgetting, with a definition that is applicable to any logic with a well-defined consequence relation. Hence it generalises a disparate set of logic-specific definitions with a general, high-level definition. Results obtained in this approach are thus applicable to all subsumed formal systems, and many results are obtained much more straightforwardly. This view also leads to insights with respect to specific logics: for example, forgetting in first-order logic is somewhat different from the accepted approach. Moreover, the approach clarifies the relation between forgetting and related operations, including belief contraction.
Fully Observable Non-deterministic Planning as Assumption-Based Reactive Synthesis
Authors: D'Ippolito Nicolás , Rodrı́guez Natalia , Sardina Sebastian
Published: July 2018

We contribute to recent efforts in relating two approaches to automatic synthesis, namely, automated planning and discrete reactive synthesis. First, we develop a declarative characterization of the standard "fairness" assumption on environments in non-deterministic planning, and show that strong-cyclic plans are correct solution concepts for fair environments. This complements, and arguably completes, the existing foundational work on non-deterministic planning, which focuses on characterizing (and computing) plans enjoying special "structural" properties, namely loopy but closed policy structures. Second, we provide an encoding suitable for reactive synthesis that avoids the naive exponential state space blowup. To do so, special care has to be taken to specify the fairness assumption on the environment in a succinct manner.
Distributed Constraint Optimization Problems and Applications: A Survey
Authors: Fioretto Ferdinando , Pontelli Enrico , Yeoh William
Published: July 2018

The field of multi-agent system (MAS) is an active area of research within artificial intelligence, with an increasingly important impact in industrial and other real-world applications. In a MAS, autonomous agents interact to pursue personal interests and/or to achieve common objectives. Distributed Constraint Optimization Problems (DCOPs) have emerged as a prominent agent model to govern the agents' autonomous behavior, where both algorithms and communication models are driven by the structure of the specific problem. During the last decade, several extensions to the DCOP model have been proposed to enable support of MAS in complex, real-time, and uncertain environments.

This survey provides an overview of the DCOP model, offering a classification of its multiple extensions and addressing both resolution methods and applications that find a natural mapping within each class of DCOPs. The proposed classification suggests several future perspectives for DCOP extensions and identifies challenges in the design of efficient resolution algorithms, possibly through the adaptation of strategies from different areas.
From Skills to Symbols: Learning Symbolic Representations for Abstract High-Level Planning
Authors: Konidaris George , Kaelbling Leslie Pack , Lozano-Perez Tomas
Published: July 2018

We consider the problem of constructing abstract representations for planning in high-dimensional, continuous environments. We assume an agent equipped with a collection of high-level actions, and construct representations provably capable of evaluating plans composed of sequences of those actions.

We first consider the deterministic planning case, and show that the relevant computation involves set operations performed over sets of states. We define the specific collection of sets that is necessary and sufficient for planning, and use them to construct a grounded abstract symbolic representation that is provably suitable for deterministic planning. The resulting representation can be expressed in PDDL, a canonical high-level planning domain language; we construct such a representation for the Playroom domain and solve it in milliseconds using an off-the-shelf planner.

We then consider probabilistic planning, which we show requires generalizing from sets of states to distributions over states. We identify the specific distributions required for planning, and use them to construct a grounded abstract symbolic representation that correctly estimates the expected reward and probability of success of any plan. In addition, we show that learning the relevant probability distributions corresponds to specific instances of probabilistic density estimation and probabilistic classification. We construct an agent that autonomously learns the correct abstract representation of a computer game domain, and rapidly solves it.

Finally, we apply these techniques to create a physical robot system that autonomously learns its own symbolic representation of a mobile manipulation task directly from sensorimotor data---point clouds, map locations, and joint angles---and then plans using that representation. Together, these results establish a principled link between high-level actions and abstract representations, a concrete theoretical foundation for constructing abstract representations with provable properties, and a practical mechanism for autonomously learning abstract high-level representations.
Rademacher Complexity Bounds for a Penalized Multi-class Semi-supervised Algorithm
Authors: Maximov Yury , Amini Massih-Reza , Harchaoui Zaid
Published: July 2018

We propose Rademacher complexity bounds for multi-class classifiers trained with a two-step semi-supervised model. In the first step, the algorithm partitions the partially labeled data and then identifies dense clusters containing k predominant classes using the labeled training examples such that the proportion of their non-predominant classes is below a fixed threshold stands for clustering consistency. In the second step, a classifier is trained by minimizing a margin empirical loss over the labeled training set and a penalization term measuring the disability of the learner to predict the k predominant classes of the identified clusters. The resulting data-dependent generalization error bound involves the margin distribution of the classifier, the stability of the clustering technique used in the first step and Rademacher complexity terms corresponding to partially labeled training data. Our theoretical result exhibit convergence rates extending those proposed in the literature for the binary case, and experimental results on different multi-class classification problems show empirical evidence that supports the theory.
Linear Satisfiability Preserving Assignments
Authors: Kimura Kei , Makino Kazuhisa
Published: July 2018

In this paper, we study several classes of satisfiability preserving assignments to the constraint satisfaction problem (CSP). In particular, we consider fixable, autark and satisfying assignments. Since it is in general NP-hard to find a nontrivial (i.e., nonempty) satisfiability preserving assignment, we introduce linear satisfiability preserving assignments, which are defined by polyhedral cones in an associated vector space. The vector space is obtained by the identification, introduced by Kullmann, of assignments with real vectors. We consider arbitrary polyhedral cones, where only restricted classes of cones for autark assignments are considered in the literature. We reveal that cones in certain classes are maximal as a convex subset of the set of the associated vectors, which can be regarded as extensions of Kullmann's results for autark assignments of CNFs. As algorithmic results, we present a pseudo-polynomial time algorithm that computes a linear fixable assignment for a given integer linear system, which implies the well known pseudo-polynomial solvability for integer linear systems such as two-variable-per-inequality (TVPI), Horn and q-Horn systems.
Learning Explanatory Rules from Noisy Data
Authors: Evans Richard , Grefenstette Edward
Published: July 2018

Artificial Neural Networks are powerful function approximators capable of modelling solutions to a wide variety of problems, both supervised and unsupervised. As their size and expressivity increases, so too does the variance of the model, yielding a nearly ubiquitous overfitting problem. Although mitigated by a variety of model regularisation methods, the common cure is to seek large amounts of training data--which is not necessarily easily obtained--that sufficiently approximates the data distribution of the domain we wish to test on. In contrast, logic programming methods such as Inductive Logic Programming offer an extremely data-efficient process by which models can be trained to reason on symbolic domains. However, these methods are unable to deal with the variety of domains neural networks can be applied to: they are not robust to noise in or mislabelling of inputs, and perhaps more importantly, cannot be applied to non-symbolic domains where the data is ambiguous, such as operating on raw pixels. In this paper, we propose a Differentiable Inductive Logic framework, which can not only solve tasks which traditional ILP systems are suited for, but shows a robustness to noise and error in the training data which ILP cannot cope with. Furthermore, as it is trained by backpropagation against a likelihood objective, it can be hybridised by connecting it with neural networks over ambiguous data in order to be applied to domains which ILP cannot address, while providing data efficiency and generalisation beyond what neural networks on their own can achieve.
Actively Estimating Crowd Annotation Consensus
Authors: Kara Yunus Emre , Genc Gaye , Aran Oya , Akarun Lale
Published: July 2018

The rapid growth of storage capacity and processing power has caused machine learning applications to increasingly rely on using immense amounts of labeled data. It has become more important than ever to have fast and inexpensive ways to annotate vast amounts of data. With the emergence of crowdsourcing services, the research direction has gravitated toward putting the wisdom of crowds to better use. Unfortunately, spammers and inattentive annotators pose a threat to the quality and trustworthiness of the consensus. Thus, high quality consensus estimation from crowd annotated data requires a meticulous choice of the candidate annotator and the sample in need of a new annotation. Due to time and budget limitations, it is of utmost importance that this choice is carried out while the annotation collection is in progress. We call this process active crowd-labeling. To this end, we propose an active crowd-labeling approach for actively estimating consensus from continuous-valued crowd annotations. Our method is based on annotator models with unknown parameters, and Bayesian inference is employed to reach a consensus in the form of ordinal, binary, or continuous values. We introduce ranking functions for choosing the candidate annotator and sample pair for requesting an annotation. In addition, we propose a penalizing method for preventing annotator domination, investigate the explore-exploit trade-off for incorporating new annotators into the system, and study the effects of inducing a stopping criterion based on consensus quality. We also introduce the crowd-labeled Head Pose Annotations datasets. Experimental results on the benchmark datasets used in the literature and the Head Pose Annotations datasets suggest that our method provides high-quality consensus by using as few as one fifth of the annotations (~80% cost reduction), thereby providing a budget and time-sensitive solution to the crowd-labeling problem.
Polypyrrole- and polyaniline-supported TiO2 for removal of pollutants from water
Authors: Katal Reza , Farahani Mohammad Hossein Davood Abadi , Masudy-Panah Saeid , Ong Say Leong , Hu Jiangyong
Published: July 2018

In recent decades, the modification of titanium dioxide (TiO2) as a well-known photocatalyst with different strategies, such as morphological change, doping and supported substrate, has been investigated. The main goals of the modification process can be described as (a) enhancing titanium dioxide performance and (b) providing a situation that uses titanium dioxide under visible or sunlight radiation. Different types of materials have been used for titanium dioxide support, among them polymers; in particular, polypyrrole (PPy) and polyaniline (Pan), that seem to be very effective due to considerable chemical and environmental stability in the aqueous phase. Meanwhile, by combining PPy and Pan with titanium dioxide, the energy of the band gap of supported titanium dioxide may be reduced and the photocatalytic process can be carried out under visible light illumination. This review demonstrates different strategies (their mechanisms and drawbacks) for enhancing titanium dioxide performance. In the field of PPy- and Pan-supported titanium dioxide, photocatalysts present a comprehensive study on their synthesis and application for removal of dye and organic pollutants. The effects of various parameters on the photocatalytic performance of PPy/titanium dioxide and Pan/titanium dioxide are also demonstrated. The main mechanisms of organic contaminants’ photodegradation by PPy/titanium dioxide and Pan/titanium dioxide in water (via an aqueous solution) are also investigated.
A Controlled Increase in Dietary Phosphate Elevates BP in Healthy Human Subjects
Authors: Mohammad Jaber , Scanni Roberto , Bestmann Lukas , Hulter Henry N. , Krapf Reto
Published: July 2018

Background Despite epidemiologic evidence for increased cardiovascular morbidity and mortality associated with both high dietary and serum phosphate in humans with normal renal function, no controlled phosphate intervention studies of systemic hemodynamics have been reported. Higher serum 25(OH) vitamin D levels are associated with better cardiovascular outcomes, but vitamin D increases intestinal phosphate absorption.

Methods We conducted a prospective outpatient study with blinded assessment in 20 young adults with normal renal function randomized to high phosphate (regular diet plus 1 mmol/kg body wt per day of Na as neutral sodium phosphate) or low phosphate (regular diet plus lanthanum, 750 mg thrice/day, plus 0.7 mmol/kg body wt per day of Na as NaCl) for 11 weeks. After 6 weeks, all subjects received vitamin D3 (600,000 U) by intramuscular injection. Outcome parameters were 24-hour ambulatory systolic and diastolic BP (SBP and DBP), pulse rate (PR), biomarkers, and measures of endothelial and arterial function.

Results Compared with the low-phosphate diet group, the high-phosphate diet group had a significant increase in mean±SEM fasting plasma phosphate concentration (0.23±0.11 mmol/L); 24-hour SBP and DBP (+4.1; 95% confidence interval [95% CI], 2.1 to 6.1; and +3.2; 95% CI, 1.2 to 5.2 mm Hg, respectively); mean 24-hour PR (+4.0; 95% CI, 2.0 to 6.0 beats/min); and urinary metanephrine and normetanephrine excretion (54; 95% CI, 50 to 70; and 122; 95% CI, 85 to 159 µg/24 hr, respectively). Vitamin D had no effect on any of these parameters. Neither high- nor low-phosphate diet nor vitamin D affected endothelial function or arterial elasticity.

Conclusions Increased phosphate intake (controlled for sodium) significantly increases SBP, DBP, and PR in humans with normal renal function, in part, by increasing sympathoadrenergic activity.
Gating Experiment Using Affect Bursts v1
Authors: Schaerlaeken Simon , Grandjean Didier
Published: July 2018

The unfolding dynamics of the vocal expression of emotions are crucial for the decoding of the emotional state of an individual. In this study, we analyzed how much information is needed to decode a vocally expressed emotion using affect bursts, a gating paradigm, and linear mixed models. We showed that some emotions (fear, anger, disgust) were significantly better recognized at full-duration than others (joy, sadness, neutral). As predicted, recognition improved when greater proportion of the stimuli were presented. Emotions recognition curves for anger and disgust were best described by higher order polynomials (second to third), while fear, sadness, neutral, and joy were best described by linear relationships. Acoustic features were extracted for each stimulus and subjected to a principal component analysis for each emotion. The principal components were successfully used to partially predict the accuracy of recognition (i.e., for anger, a component encompassing acoustic features such as fundamental frequency (f0) and jitter; for joy, pitch and loudness range). Furthermore, the impact of the principal components on the recognition of anger, disgust, and sadness changed with longer portions being presented. These results support the importance of studying the unfolding conscious recognition of emotional vocalizations to reveal the differential contributions of specific acoustical feature sets over time. It is likely that these effects are due to the relevance of threatening information to the human mind and are related to urgent motor responses when people are exposed to potential threats as compared with emotions where no such urgent response is required (e.g., joy).
Characterizing localization differences between WT and KO fibroblasts v1
Authors: Pourzan Eve
Published: July 2018

Question: Determine if there are differences in localization of MRTF and SRF between wildtype and pirin KO fibroblasts.
The Polymorphisms of the PPARD Gene Modify Post-training Body Mass and Biochemical Parameter Changes in Women v1
Authors: Leonska-Duniec Agata
Published: July 2018

In this study we examined the genotype distribution of the PPARD rs2267668, rs2016520, and rs1053049 alleles in a group of women, before and after the completion of a 12-week training program. There were two significant genotype × training interactions resulting in decreases of total cholesterol (Chol) through training in rs2267668 G allele carriers and significant increases of triglyceride (TGL) levels in rs2267668 AA homozygotes. Carriers of rs2016520 PPARD C allele exhibited a significant decrease in Chol through training with an accompanying decrease in TGL. There was also overrepresentation of PPARD rs1053049 TT homozygotes in the group with higher post-training TGL levels. Moreover (rs2267668/rs2016520/rs1053049) G/C/T haplotype displayed smaller post-training body mass decrease, suggesting that harboring this specific G/C/T haplotype is unfavorable for achieving the desired training-induced body mass changes. On the other hand, the G/C/C haplotype was significantly associated with post-training increase in fat free mass (FFM) and with lower levels of Chol as well as TGL as observed in the blood of the participants in response to applied training. This observation constitutes the second important finding of the study, implying that when specific training-induced biochemical changes are taken into account, some individuals may benefit from carrying the G/C/C haplotype.
LAND SPECULATION AND URBAN RENT IN TURKEY
Authors: Meydan Yıldız Seçil Gül , Emür Semih Halil
Published: July 2018

The content and impact of rent is increasingly seen as
related with the historical period that shaped urban structure depending on the
rent relations, changing of life requirements and the scientific and
technological developments. The land speculation which is a result of private
property, is an important factor in the selection of land use decisions and
defining the direction of urban development growth. As a natural result of
urbanization and being urbanized, the specification of urban land and gainings
to the owners are changing due to the increase of social, economic, political
and spatial requirements. Attitudes and behaviors contrary to reconstruction
(planning) decisions increase the land speculation. In this case, land can
become a tool for the storage of wealth depending on the relative position of
land in the urban area or being on the direction of urban development. In this
study, it is aimed to determine the relationship between the city (urban), land
and the rent in Turkey, and the role of land speculation that is influenced in
this process is described.
The prevalence of congenital fetal anomalies for the past 5 years (2013-2017)
Authors: Nagorneva Stanislava V. , Prokhorova Victoria S. , Shelaeva Elizaveta V. , Khudovecova Alexandra M.
Published: July 2018

This article presents the data on the prevalence of congenital fetal anomalies in our hospital population obtained for the past five years (2013–2017). We analyzed the changes in their structure and the timing of diagnoses for the anomalies. In addition, the comparison of our results with international data was performed and extremely rare anomalies were described.
Travel Package Recommendation System
Authors: Rohit M. V. , Manju Rohan M. , Trishalaa S. , Ayas Rashmi B. , Nirmala J. S.
Published: July 2018

In the past few years recommender systems have seen an increasing growth and popularity. Despite progress in this area, there are still lots of places to be explored and visited. We first identify and analyze the existing travel packages present in existing system. Major drawback of existing system is that places which have to be seen in the winter season are being considered as a package in the summer season. If a customer wishes to go to some north or northeastern places in winter, they can’t book the package. Our system overcomes this drawback by providing all the places to visit under three categories that is adventure, nature, historic. By this way the customer can choose the type of activity they wish to do and book the places they wish to see.
Revisiting Duyvis: A Chemical Engineer’s Zeal to Organize Knowledge
Authors: Dutta Bidyarthi
Published: July 2018

This paper presents an analytical study on Frits Donker Duyvis’ role in developing and revising Universal Decimal Classification (UDC). Also, his role as Secretary General of International Institute of Bibliography (IIB) has been analysed. The IIB was formed in 12th September 1895 at Brussels actually to sponsor UDC. It was renamed as International Institute for Documentation in 1931. During Duyvis’ tenure in IIB, several controversies occurred with Paul Otlet and Henri La Fontaine, the inventors of UDC. Otlet’s universal philosophy and notion of a great centralised bibliographic repertory confronted Duyvis’ pragmatic outlook, which is perhaps one of the most remarkable conflicts in the history of knowledge classification in IIB. The excerpts of some memorable letters of Otlet and Duyvis are presented here to present a layout of the historical conflicts took place centring the revision process of UDC. According to Ranganathan, Donker Duyvis was primarily a classificationist and not a grammarian of classificatory language. Several excerpts from different documents are presented to reckon that if Otlet was the first to understand that classification was at the heart of all documentation, it was Duyvis who made this finding in everyday practice.
An Overview of SAARC National Libraries
Authors: Satija M. P. , Chander Harish , Singh Prerna
Published: July 2018

The paper highlights the functions of a national library as viewed by some authorities in the field. The history, objectives, building, collection and services of the national libraries of SAARC nations are examined. The picture that emerges is that national libraries in the SAARC region are victims of neglect, political interference in administration and lack of understanding of the importance of a repository of national documentary heritage.
Adoption of Web 2.0 in African National Libraries: An Evaluative Study
Authors: Kannikaparameshwari G. , Chandrashekar M.
Published: July 2018

Purpose: This paper aims to provide an overall picture of the application of Web 2.0 technologies in national libraries in African countries. The focus of the research was to examine the types of Web 2.0 technologies that were used in national library websites and their features. Design/methodology/Approach: Content analysis was used in terms of quantitative approach. A checklist as the main research instrument was developed based on other checklists and questionnaires. Data were collected by accessing National library Web sites of African countries. Findings: In the African continent out of 61 countries 51 countries have national libraries. 31 of these have web presence and 10 national libraries are using Web 2.0 technologies in their websites. Research limitations: A combination of content analysis with survey and / or interview may enable future researchers to analyze other aspects (e.g. the application of internal wikis or the use of instant messaging for reference services) of Web 2.0 that a single method of content analysis could not gain. This study explores the application of Web 2.0 and is useful for all types of national libraries in evaluating/deploying Web 2.0.
Exploration of the Term ‘Digital Library’ as Groups in Facebook: An Analysis
Authors: Acharjya Nantu
Published: July 2018

Facebook is one of the most used social networking sites. Group is the special feature of facebook. A special community may be created with the sector of group. In this paper the term “digital library” has been explored in the groups of facebook. The data has been collected from facebook.com till 28.10.2017. Total 94 groups are identified. Here nature or structures of groups are analyzed. This paper examines the activities of digital library groups.
Effects of dynamic information display on the perception of public washroom cleanliness
Authors: Liu Yang
Published: July 2018

Washroom cleanliness is a key influence on our positive attitude towards public spaces. Recently, interactive technology has been introduced. While the role of physical cleanliness is obvious, interactive technology may affect the perception of cleanliness. This study investigates whether the most recent washroom service time displayed on a touchscreen influences the perception of washroom cleanliness. Participants leaving a washroom were asked to rate the cleanliness of the washroom. The touchscreen that showed the service time was visible for the experimental group and covered for the control group. Results showed that participants who noticed the most recent washroom service time in the experimental group perceived the washroom as cleaner than the control group. In addition, the touchscreen was preferred as an interface for washroom service request, compared with telephone calls and text messaging. The results suggest interactive technology has potential to enhance attitudes towards public space.
Innovative Methods of Strengthening the Construction Quality of Mechanical and Electrical Engineering
Authors: Zhang Xianghui , Ji Weiming , Qi Yan , Li Liguang , Shi Mazhi
Published: July 2018

With the rapid development of the construction industry, more and more high demands are put on the important modern mechanical and electrical engineering. Many aspects of the mechanical and electrical engineering construction have an impact on the quality of the building. This paper analyzes the principles and methods of construction quality control of electromechanical engineering. In view of the influencing factors of electromechanical construction quality, an innovative method is proposed for reference.
Construction Progress Control And Management Measures Analysis
Authors: Fang Jie , Li Yan , Liao Qi , Ren Zenghui , Xie Baohong
Published: July 2018

The construction schedule control of construction project is within the prescribed period of time to develop a scientific and reasonable plan, and when executed timely check construction progress, the knowledge of construction progress, and then analyzed the construction plan, timely correcting and deal with the deviation, and take effective solutions to promote the project smoothly.Construction engineering plays an important role in economic development, so it can guarantee the quality of construction.This paper analyzes the management of construction engineering construction progress control and control methods of construction engineering project, the aiming at the influence factors of construction engineering construction progress, the control and management measures are put forward for reference.
Discussion on the construction technology of waterproofing roadbed on road and bridge construction
Authors: Xia Dezhi , Zeng Jun , Zhao Yiteng , Shen Yan , Guo Xueyan
Published: July 2018

At present, with the policy support of the state in the coordinated development of the region, the modernization of the city is vigorously promoted and the level of the national urbanization is promoted rapidly and continuously. As a project of urban infrastructure construction, road and bridge plays a vital role in the construction of the whole urban road network system. Throughout the construction process of every subsystem of road and bridge, the main influence on the later period of road and bridge is waterproof pavement. The level of construction of waterproof subgrade is closely related to the construction quality and construction level of the entire project. The two are coordinated and mutually unified, and how to further improve the waterproof road surface construction technology, construction technology and construction quality, has become a major research topic for each road and bridge construction company[1]. From the technical point of view, the paper actively excavates potential security hidden dangers and threats hidden in the construction of road and bridge, and makes a comprehensive analysis of some of the most prominent problems, and explores an effective way to effectively solve the problem.
Elementary discussion on construction technology of foundation treatment for water conservancy and hydropower projects
Authors: Shao Linjun , Wang Qingfeng , Qin Guiyun , Liu Rongqiang
Published: July 2018

Human life is inseparable from water resources, and human development is inseparable from electric energy. Water conservancy and hydropower project plays a very important role in all stages of human development, whether it is power generation, irrigation, flood control or drainage, which can not be separated from the construction of water and hydropower projects. This paper briefly discusses and analyzes the basic treatment construction techniques for water conservancy and hydropower projects, giving full play to the key role of water conservancy and hydropower projects in the development of national economy.
Analysis of Difficulties and Technical Countermeasures in Construction of Road and Bridge Tunnels
Authors: Wang Chengsen , Qu Kun , Ren Yizhe , Liu Lina , Wang Wei
Published: July 2018

With the development of the times, people's economic level is improving, the urban construction is accelerated, the road, bridge and tunnel construction as the focus of the urban construction scale of construction projects and the construction quantity is also growing. Subsequently, people pay special attention to their quality problems. At the same time, there are many difficulties and technical problems waiting to be solved in the construction process. These difficulties and technical problems are the important factors influencing the quality of tunnel construction. Only strictly and comprehensively control it so that the roads, bridges and tunnels can be well and rapidly developed. Next, the paper will make a comprehensive analysis of the difficulties and technical countermeasures in the construction of road bridge tunnel.
Multimodal Medical Image Fusion Using Various Hybrid Fusion Techniques For clinical Treatment Analysis
Authors: B Rajalingam , R Priya
Published: July 2018

Medical image fusion is one the most significant and useful disease analytic techniques. This research paper proposed and examines some of the hybrid multimodality medical image fusion methods and discusses the most essential advantages and disadvantages of these methods to develop hybrid multimodal image fusion algorithms that improve the feature of merged multimodality therapeutic image. Computed Tomography, Magnetic Resonance Imaging, Positron Emission Tomography and Single Photon Emission Computed Tomography are the input multimodal therapeutic images used for fusion process. An experimental results of proposed all hybrid fusion techniques provides the best fused multimodal medical images of highest quality, highest details, shortest processing time, and best visualization. Both traditional and hybrid multimodal medical image fusion algorithms are evaluated using several quality metrics. Compared with other existing techniques the proposed technique experimental results demonstrate the better processing performance and results in both subjective and objective evaluation criteria. This is favorable, especially for helping in accurate clinical disease analysis.
Analysis of Application of Pile Foundation Technology in Construction Engineering
Authors: Si Xiaoyu , Zhao Xiangru , Zhao Xiangru , Wang Lihua , Wang Lihua , Du Baosen , Du Baosen , Wu Liping , Wu Liping
Published: July 2018

Since the reform and opening up, China has invested a lot of painstaking efforts in the field of science and technology, which has greatly promoted the progress and development of science and technology in China. The rapid development of science and technology has effectively promoted the progress of all walks of life. In terms of construction industry, the application of advanced construction technology lays a technical foundation for the effective improvement of construction quality and construction efficiency. The following is the analysis of the application of pile surrounding construction technology in building engineering, and how to improve the quality of pile foundation construction. It is necessary to ensure that the construction technology of pile foundation can give full play to its advantages in construction engineering and meet the carrying demand of construction projects.
Cost Management of Mechanical and Electrical Engineering Project Based on Bim Technology
Authors: Zhang Lifa , Dong Zhibo , Zhang Lizhuang , Zu Aiping , Yang Liang
Published: July 2018

With the further development of social economy and science and technology, society has brought new impetus and new challenges for the development of mechanical and electrical engineering. In order to safeguard the sound operation of mechanical and electrical engineering, we must take into account the management effect of project costs while strictly controlling the construction quality of electromechanical engineering projects. There have been some attempts to apply BIM technology to the cost management of electromechanical engineering projects. In this environment, this paper takes the cost management of mechanical and electrical engineering projects of BIM technology as the research object. First, it briefly introduces the theory and characteristics of BIM technology. On the basis of this, it points out the advantages of cost management in combination of electromechanical engineering and BIM technology. Finally, the actual application of this technology in the cost control of electromechanical engineering projects is the final point of view, in order to provide a reference for the project construction time, energy saving, project quality assurance and so on.
Analysis of Application of Environmental Engineering Construction in Ecological City
Authors: Sun Shutian , Huang Kunxue , Hu Yu , Xing Zhixin , Su Qingjiang
Published: July 2018

At present, with the continuous deterioration of the ecological environment and the gradual deepening of human understanding of the relationship between man and nature, the construction of an ecological city has become the trend and inevitable urban construction in the future. Finding harmonious development among cities, human beings, and the natural environment through the construction of the ecological environment is an inevitable choice for human and urban development. In order to provide sufficient theoretical exploration for the construction of ecological cities, this paper first introduced the two important concepts of ecological environment and environmental engineering and the necessity of ecological construction. On the basis of this, it analyzes the various obstacles and predicaments in the current construction of ecological cities and achieves the purpose of clarifying the problems; finally, it proposes corresponding countermeasures[1].
Las Geotecnologias y los sistemas de apoyo para la planeación en el ordenamiento territorial
Authors: Contreras Hernández Gustavo Andrés , Villegas Rodríguez Ernesto
Published: July 2018

La planeación territorial es un proceso de índole geográfico y tiene como fin identificar un problema, analizarlo, establecer objetivos y con base en ellos generar alternativas de solución, seleccionar una, ejecutarla y hacerle seguimiento. Sin embargo, el referente al ordenamiento y planificación territorial existen diversas aplicaciones informáticas que pueden ser utilizadas en las distintas etapas de la planeación como es la dimensión geográfica con apoyo en el uso de Sistemas de Información Geográfica (SIG) y sus funciones de análisis espacial, modelamiento y visualización, integrados con aplicaciones informáticas no espaciales y sus funciones de tabulación, administración y almacenamiento de datos, que pueden funcionar juntas apoyadas por las Tecnologías de la información y las Comunicaciones (TICs). Para ello, se aplican las distintas variables ambientales, sociales y económicas que a través de las distintas instancias de políticas s en el territorio para general los escenarios territoriales más óptimos en términos de planificación territorial.
La madera Colombiana, oportunidad de regeneración del flujo de los ríos mediante una producción sostenible y competitiva
Authors: Forero Buitrago Gonzalo Alberto
Published: July 2018

En Colombia, la generación sostenible de ingresos mediante procesos que propicien la recuperación de recursos naturales y biodiversidad en general se hace indispensable. Este tipo de producción, se logra mediante productos competitivos en el mercado internacional, productos elaborados con procesos sostenibles con el medio ambiente. La madera Colombiana ofrece todo esto, si se realiza una reforestación a gran escala en las regiones de todo el pais, junto al aumento de la franja a reforestar y proteger en la rivera de los rios, mediante estrategias politicas propias del gobierno. Esta reforestación, tiene como finalidad recuperar especies maderables Colombianas, proveer habitat para especies y enfriar las capas subterraneas cercanas al rio, esto ultimo con el fin de que el agua del rio se mueva subterraneamente por diferencia de temperaturas, recargando el manto freático de la rivera del rio en la epoca lluviosa, ya que el movimiento de agua subterranea se da del calor al frio, en consecuencia del rio al manto freatico cuando existe un bosque maduro en la reservera del rio.

Si este movimiento subterraneo se da, en lugar de fluir a altas velocidades hacia el mar, se rescata la navegabilidad del rio en la epoca seca, al devolverse el agua subterranea almacenada en el transito de la epoca lluviosa del rio al acuifero subterraneo, que regresa a suplir el rio en la epoca de sequia, haciendo que exista una disponibilidad de agua en epoca seca.

Además de preserver el agua, aumentar habitat para especies, el pais tendra una reserva de madera, un producto unico y apetecido en el mundo por la riqueza de materiales, catalogado por expertos en el tema como la mejor madera del mundo, la madera Sur Americana por sus bellos colores, betas, calidad y trabajabilidad.
Reducción de la huella de carbono por medio de la implementación de un sistema fotovoltaico en el sector hotelero. caso de estudio anaira hostel (Leticia-Amazonas - Colombia)
Authors: Rodríguez Buitrago Ana María , Gutierrez Fernando
Published: July 2018

La actividad hotelera ocasiona grandes presiones ambientales sobre el municipio de Leticia, capital del Departamento de Amazonas, que es uno de los sitios turísticos más visitados de Colombia. Dentro de los impactos producidos, uno de los más significativos es la emisión de gases de efecto invernadero, entre otras cosas porque el municipio no hace parte del Sistema Interconectado Nacional Colombiano (Sector Eléctrico), lo que ocasiona que se genere electricidad para el municipio con una planta eléctrica de diésel, por ende, es necesario generar alternativas para el reemplazo de la energía que utiliza el sector hotelero, entre las cuales se encuentra la implementación de sistemas fotovoltaicos. Por lo tanto, el presente trabajo pretende presentar una propuesta para reducir la huella de carbono del Anaira Hostel por medio de la implementación de un sistema fotovoltaico, y así mismo disminuir su consumo y dependencia de electricidad generada por medio de combustibles fósiles. Se analizaron 6 sistemas fotovoltaicos y se llevó a cabo la elección de la mejor propuesta con base en el análisis costo-beneficio. La propuesta final fue el sistema con el panel de Solar Green Energy Latin America que cuenta con una potencia de 320 W, y que al quinto (5) año recupera el dinero invertido y se comienzan a generar ganancias.
Representações sociais de acadêmicos de pedagogia sobre o estágio superviosionado em educação infantil
Authors: Yaegashi Solange Franci Raimundo , Bianchini Luciane Guimarães Batistella , Pires Juliana Gabricho Capella
Published: July 2018

Neste artigo temos como objetivo analisar as representações sociais de acadêmicos do curso de Pedagogia sobre o estágio supervisionado em Educação Infantil. A pesquisa é de natureza qualitativa e descritiva. O estudo proposto vincula-se ao Grupo de Estudos e Pesquisas em Escola, Família e Sociedade (GEPEFS) e ao Programa de Pós-graduação em Educação da Universidade Estadual de Maringá (UEM). Como referencial teórico-metodológico adotamos a Teoria das Representações Sociais (TRS). Participaram desta pesquisa 41 discentes do curso de Pedagogia da UEM, pertencentes às turmas do 1º ao 4º ano do curso, dos períodos matutino e noturno matriculados a partir do ano de 2012Os resultados revelaram que as representações sociais dos acadêmicos são dissonantes, mesmo os respondentes sendo da mesma turma ou estando no mesmo ano letivo. Os sujeitos que escolheram a Educação Infantil como área de atuação são os mesmos que tiveram uma boa experiência de estágio nesse nível de ensino. Chegamos à conclusão que as vivências durante o Estágio Supervisionado em Educação Infantil influenciam sobremaneira a escolha profissional e a prática pedagógica do futuro professor.
A GESTÃO DA RELAÇÃO DE FORNECEDORES A JUSANTE DA CADEIA DE SUPRIMENTOS DE MATERIAL DE CONSTRUÇÃO
Authors: Silva Barbosa Juliana , Campelo Filho Eulalio
Published: July 2018

O gerenciamento da cadeia de suprimentos (SCM) e a gestão de relacionamento com fornecedores (SRM) vêm se constituindo em importantes estratégias para as empresas alcançarem vantagens competitivas, por meio do aumento da eficiência da produção e da redução de custos. O presente trabalho apresenta um estudo sobre a gestão da relação de fornecedores de empresas do varejo de material de construção. Especificamente, realizou-se uma pesquisa com foco nos critérios de seleção e avaliação de desempenho desses atores e seu relacionamento com os parceiros da cadeia. Nesse sentido, empreendeu-se uma survey, realizada mediante aplicação de um questionário junto às empresas do varejo de material de construção, entre os meses de janeiro e maio de 2015. Verificou-se, no estudo, que as empresas entrevistadas utilizam, principalmente, conhecimentos empíricos dos proprietários durante a sua gestão, sendo o preço a variável mais utilizada como critério para a tomada de decisão. Contudo, em alguns segmentos desse setor, já se percebe um avanço quanto à aplicação de técnicas comprovadas de seleção e desenvolvimento de fornecedores.
Ferulic Acid Substituted Zn(II) Phthalocyanine: Synthesis, Characterization and Investigation of Photophysical and Photochemical Properties
Authors: GORDUK Semih
Published: July 2018

In this study, novel peripherally ferulic acid tetra-substituted
Zn(II) phthalocyanine was synthesized for the first time. The synthesized phthalocyanine
was characterized by elemental analysis, Infrared spectroscopy, UV-vis
spectroscopy, 1H-NMR spectroscopy and MALDI-TOF MS techniques. The photophysical,
photochemical and aggregation properties of this phthalocyanine were also investigated
in DMSO and DMF solvents. The aggregation studies showed that the synthesized
Zn(II) phthalocyanine has not aggregated in DMSO and DMF. Fluorescence quantum
yield (ΦF: 0.23 in DMSO and 0.17 in
DMF), singlet oxygen quantum yield (Φ∆:0.57 in DMSO and 0.45 in
DMF) and photodegradation quantum yield (Φd:1.08x10-5 in DMSO and 4.48x10-5 in DMF) were also determined. These results show that the synthesized
phthalocyanine has potential use in photodynamic therapy.
Concepção de Inversor Multinível para Aplicação em UPS
Authors: Oliveira Lincoln M. , Costa Levy F. , Marins Deivid S. , Daher Sergio , Antunes Fernando L. M.
Published: July 2018

Este trabalho apresenta o modo rede de operação de um sistema ininterrupto de energia on-line monofásico de 3 kVA operando em baixa frequência, alta eficiência, alto fator de potência e com tensão de entrada e saída de 220 Vca. O estágio de entrada da UPS é composto por um retificador realizando correção de fator de potência, através de uma ponte completa de diodo em série com um conversor boost, alimentando por meio de um barramento CC um inovador inversor multinível. O inversor multinível é baseado em um transformador de múltiplos enrolamentos com um primário e vários secundários, que produzem tensões alternadas parciais com amplitudes diferenciadas entre si, seguindo o modelo binário. O estágio de saída do inversor combina essas formas de onda parciais para formar uma tensão de saída multinível. A análise, princípios de operação, exemplo de projeto e resultados experimentais do sistema proposto são apresentados neste artigo.