bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sustainability-Based Construction of the Restoration Projects for the Guguan Hydropower Station
Authors: Liu Taiyi , Chen Pohan , Chou Nelson N.S. 
Published: June 2019

Abstract
In Taiwan, the Dajia River is one of the most important rivers that provides hydroelectric energy. A couple of well-operated hydropower stations have been placed in different sections of this river for several decades. The 921 earthquake that hit central Taiwan in 2000 and Typhoon Toraji that attacked this area in 2001 caused severe damage to almost all hydropower stations. To continue to provide sufficient power for the public, the restoration of these power stations is necessary. Taiwan Power Company (Taipower) was responsible for the restoration projects. The Guguan hydropower station, which could provide 212.8 MW power, is one of the most damaged power stations. The Guguan power station restoration project, executed by the New Asia Construction and Development Corporation (NA Corp.), was started in April 2002. During the project, a series of typhoons and heavy storms attacked central Taiwan between 2004 and 2007 (especially Typhoon Mindulle in 2004). Consequently, the restoration work was greatly hindered; in particular, there was massive groundwater leakage from all external walls of the tunnel and powerhouse structures. The maximum leakage of groundwater was up to 84 tons/min. This situation not only caused extreme difficulty that interrupted the restoration work but also made the construction site a dangerous environment to continue restoration or future operation. In addition, the construction facilities were damaged, resulting in suspension of the restoration work. For safety construction of the restoration work, a series of temporary protection structures/platforms and a large quantity of grouting work had been performed. This power station was well restored and engaged in commercial operation in October 2008. In this paper, the detailed working procedures of the safety construction methods are presented.
Time Delay Estimation via Correlation in the Non-Synchronous Sensor Network by the Internet of Things
Authors: Chen Ziyang , Xue Songtao , Xie Liyu 
Published: June 2019

Abstract
This paper is concerned with the elimination of time delay among data from different channels sampled by the sensor network from the Internet of things (IoT), especially the wireless sensor network (WSN) in Structural Health Monitoring (SHM). In this paper, a technique using correlation has been proposed and moving window plays an important role in this algorithm. Obtaining the correlation coefficient at each point, use interpolation function to fit a curve so that the sub-sampling-interval part of time delay can be calculated, which is enlightened by sub-pixel deformation algorithm from Digital Image Correlation (DIC). The length of each segmentation and the choice of interpolation function will affect the computational efficiency and the quality of result, so they should be carefully confirmed. Finally, a numerical experiment has been conducted to verify this method and analysis the error of this method, and gives out a satisfactory consequence.
Repairs and Construction Technique of Neoteric Buildings in China: A Case Study of the Building of College of Engineering in Wuhan University
Authors: Chen Yiwen , Zeng Qing , Cai Huiwang , Liu Zhi 
Published: June 2019

Abstract
Based on the principles of protection and repair of cultural relic buildings, this paper takes the repair project of the Building of College of Engineering in Wuhan University as an example, analyzes the architectural characteristics and construction difficulties, lays stress on scientific analysis methods, and determines the repair method combining modern technology with traditional technology. In the process of rehabilitation and construction, the principles of “not changing the original state of cultural relics” and “minimal intervention” are followed, and the requirements of facilities and functions are improved appropriately, so as to prolong the life span of the building and give full play to its use value.
Study on Promoting General Contracting Construction in China Referencing IPD Principles
Authors: Zhang Yinglong , Hu Hao , Xu Feng , Tian Yu 
Published: June 2019

Abstract
Integration Project Delivery (IPD) brings innovation to the project management process with the concept of “integration”, and forms a relatively rich IPD principles system, which can provide reference for the development of General Contracting construction. In this paper, IOS Management System theory was used to analyze the key issues in the management Idea/Ideology, Operation/Organization, and Stratagem/Strategy of the General Contracting construction. It was concluded that the rights and responsibilities of the project general contractor should be emphasized, the contract organization mode of the parties involved in the General Contracting project should be well constructed, and highlights for signing the project general contract should be proposed. Focusing on the above three aspects, the authors sorted out and analyzed the related IPD principles, then put forward specific proposals to promote the development of the General Contracting construction in China under the guidance of “management and technology integration”, “organization integration” and “contract integration”.
Numerical Simulation of Dynamic Analysis of Glacier Under Seismic Loading Based on Combined Finite-Discrete Method
Authors: Su Y. , Liu E.l. 
Published: June 2019

Abstract
The dynamic analysis of the Laohugou No.12 Glacier of Qilian Mountain under given seismic loading effect is analyzed by using combined finite-discrete element method (FDEM). The necessary ice parameters for FDEM simulation are calibrated by using numerical experiments of biaxial compression corresponding to the physico-mechanical parameters. The results indicated that the stress-strain curves are strain softening, and the peak value of deviatoric stress is consistent with the laboratory experiments. Under the dynamic load effect, the glacier slip along the slope direction, and the whipping effect of the speed is obvious. The feasibility of using FDEM method to study discontinuous problems such as ice avalanche is discussed.
Statistical Linearization Method for the Piecewise Nonlinear Systems
Authors: Li L. Y. , Huang B. Y. 
Published: June 2019

Abstract
The Monte-Carlo numerical simulation method is applied to obtain the approximate probability distributions of the response of the piecewise nonlinear systems to random excitation. The expression of the equivalent linearization parameters for the piecewise nonlinear system is derived by the proposed statistical linearization method. To illustrate the accuracy of the linearization method, the present paper has compared the statistical characteristic value obtained by both the Monte Carlo numerical simulation method and the Statistical linearization method, while the time history analysis also shows a good agreement. Linearization of piecewise stiffness nonlinear model is displayed.
Analysis on the Incentive Policy of Vertical Greening in China: a Case Study of Shenzhen City
Authors: Li Yun , Hu Yali , Zhong Jinghua 
Published: June 2019

Abstract
Through the comparison of the current vertical greening policies at home and abroad, the paper analyzes the overall value orientation and policy characteristics of the domestic vertical greening incentive policy based on the type of vertical greening practice, the matching analysis of the incentive policies related to vertical greening in Shenzhen; analyze the existing system, type, relevant departmental responsibilities and implementation effects of Shenzhen’s vertical greening policy, and deeply discuss the shortcomings of China’s current vertical greening incentive policy and propose optimization suggestions.
Corrosion Rate of Low Carbon Steel for Construction Materials in Various NaCl Concentrations
Authors: Ali N. , Putra T.E. , Husaini  , Iskandar V. Z. , Thalib S. 
Published: June 2019

AbstractCorrosion rate data of metal materials for construction; particularly carbon steel used in wet environments containingNaCl, is very important due to safety reasons. It is, therefore, necessary to investigate the corrosion rate of construction steel in variousNaClconcentrations. The objective of this work is to study the corrosion rate of low carbon steel by varying the concentration ofNaClin distilled water, using a loss of weight method. To carry out this research, 25 low carbon steel samples, of 80x24x3 mm sized coupons, were made. Samples were divided into 7 treatment groups, and weight loss measurements were carried out for 240, 480, 720, 960, 1200, 1440 and 1750 hours, respectively. Experimental data was obtained by totally exposing the samples toNaClsolutions of 2%, 3%, 4% and 5%, and one treatment in distilled water only. The results show thatNaClconcentration significantly influenced the corrosion rate for all solution variations. The most obvious effect was observed in the first 240 hours of exposure time for all concentrations ofNaCl;which then gradually decreased until an exposure time of 1750 hours was reached. The average corrosion rate value was0.2427 μm/year.
Genetic Associations with Indoor Tanning Addiction among non-Hispanic White Young Adult Women
Authors: Mays Darren , Ahn Jaeil , Zhang Bingsong , Atkins Michael B , Goerlitz David , Tercyak Kenneth P 
Published: June 2019

Abstract

Background
Some young people may become addicted to indoor tanning in a manner similar to other forms of addiction, but research on genetic associations with indoor tanning addiction remains limited.

Purpose
To examine if liabilities in genetic addiction reward pathways and psychiatric comorbidity influence the risk of indoor tanning addiction.

Methods
This was a cross-sectional study with a community sample of 292 non-Hispanic white young adult women aged 18–30 years who reported indoor tanning in the past year. Self-report measures included indoor tanning frequency, appearance orientation, depressive symptoms, and two screeners of tanning addiction. DNA samples were analyzed for 34 single nucleotide polymorphisms (SNPs) in candidate genes in addiction reward pathways.

Results
No SNPs were significantly associated with tanning addiction in univariate analyses after multiplicity adjustment. In multivariable analyses adjusting for indoor tanning frequency, appearance orientation, and depressive symptoms, variant genotypes (CC or CT) in two DRD2 dopamine receptor gene SNPs were associated with increased odds of indoor tanning addiction (rs4436578, odds ratio [OR]: 2.30, 95% confidence interval [CI]: 1.11–4.77; rs4648318, OR: 1.95, 95% CI: 1.02–3.72). Variant SNP genotypes interacted with depressive symptoms to increase the risk of indoor tanning addiction: OR: 10.79, 95% CI: 3.25, 35.80, OR: 13.60, 95% CI: 4.13, 44.78, respectively.

Conclusions
This study provides preliminary evidence that DRD2 dopamine receptor gene SNPs are associated with indoor tanning addiction and young women with variant genotypes and elevated depressive symptoms may be at higher risk. These preliminary results support a reward-based model for indoor tanning addiction and warrant further investigation.
Assessing the invasive risk of bark beetles (Curculionidae: Scolytinae and Platypodinae)
Authors: Yu Yanxue , Chi Zhihao , Zhang Junhua , Sun Peishan , Wang Cong , Pan Xubin 
Published: June 2019

AbstractBark beetles have been recognized as the main insects that threaten forests worldwide. Several years of research related to evaluating the potential establishment of beetles have yielded widespread recognition of the usefulness of cluster analysis or species distribution models (SDMs) in predicting which species present a high risk of invasion. It is necessary to integrate current practices to quantitatively estimate the risk of establishment. This article analyzes global occurrence data of bark beetles using ‘SOM (self-organizing mapping) + MaxEnt’ to generate the list of high-risk species based on an SOM index and ranges of suitable distribution. All selected countries were clustered into nine clusters to discover which countries have similar bark beetles assemblages. A list of species considering potential threats that were absent from some countries was generated, and Hylurgus ligniperda and Scolytus multistriatus have a relatively high risk of establishment in China. Moreover, MaxEnt were used to analyze the potential geographic areas that species may be invaded. The results indicated that suitable regions of H. ligniperda are distributed in North America, Europe, the Middle East, Central Asia, and the southwest part of China. In addition, S. multistriatus has limited distribution on the Chinese mainland. The integration of SOM and MaxEnt provides a valuable reference for identifying potentially threatening invaders, and assessing the establishment risk for biological invasion, which provide the basis for forest management measures.
Development of a predictive model for drug-associated QT prolongation in the inpatient setting using electronic health record data
Authors: Hincapie-Castillo Juan M , Staley Benjamin , Henriksen Carl , Saidi Arwa , Lipori Gloria Pflugfelder , Winterstein Almut G 
Published: June 2019

Abstract

Purpose
We aimed to construct a dynamic model for predicting severe QT interval prolongation in hospitalized patients using inpatient electronic health record (EHR) data.

Methods
A retrospective cohort consisting of all adults admitted to 2 large hospitals from January 2012 through October 2013 was established. Thirty-five risk factors for severe QT prolongation (defined as a Bazett’s formula—corrected QT interval [QTc] of ≥500 msec or a QTc increase of ≥60 msec from baseline) were operationalized for automated EHR retrieval; upon univariate analyses, 26 factors were retained in models for predicting the 24-hour risk of QT events on hospital day 1 (the Day 1 model) and on hospital days 2–5 (the Days 2–5 model).

Results
A total of 1,672 QT prolongation events occurred over 165,847 days of risk exposure during the study period. C statistics were 0.828 for the Day 1 model and 0.813 for the Days 2–5 model. Patients in the upper 50th percentile of calculated risk scores experienced 755 of 799 QT events (94%) allocated in the Day 1 model and 804 of 873 QT events (92%) allocated in the Days 2–5 model. Among patients in the 90th percentile, the Day 1 and Days 2–5 models captured 351 of 799 (44%) and 362 of 873 (41%) QT events, respectively.

Conclusion
The risk models derived from EHR data for all admitted patients had good predictive validity. All risk factors were operationalized from discrete EHR fields to allow full automation for real-time identification of high-risk patients. Further research to test the models in other health systems and evaluate their effectiveness on outcomes and patient care in clinical practice is recommended.
Multicenter Efficacy Trial of a Percutaneous Radiofrequency System for the Reduction of Glabellar Lines
Authors: Newman James , Chan James , Lorenc Z Paul , Stridde Braden C , Russell David James 
Published: June 2019

Abstract

Background
Bipolar percutaneous radiofrequency (RF) is an established method for ablation of distal peripheral branches of the facial nerve to produce weakness of the corrugator muscle. Recent developments to the Serene RF system (Serene Medical, Inc., Pleasanton, CA) allowing for safer and more predictable results highlighted a need for prospective clinical data.

Objectives
The authors sought to assess the ability of percutaneous RF to safely improve the appearance of dynamic glabellar lines for a minimum of 3 months and up to 1 year.

Methods
This prospective study enrolled 78 patients across 5 centers in the United States. The most distal branches of the medial and lateral facial nerve innervation to the brow depressor/corrugator complex were treated. Follow-up was at 3 days by telephone and in-office at 7 days and 3, 6, 9, and 12 months posttreatment. Patients were evaluated employing the Merz scale for dynamic glabellar lines.

Results
At 3 months, 93.6% of patients had a ≥1-point Merz scale improvement in dynamic glabellar lines based on independent, blinded review. Sustained ≥2-point improvement was present in 60% and 20% of patients at 3 and 12 months, respectively. Overall satisfaction remained &gt;60% through 6 months and &gt;50% at 12 months. All device- or procedure-related adverse events were mild (90%) or moderate (10%) and resolved without medical intervention.

Conclusions
Bipolar percutaneous RF may be adopted in conjunction with surgery or as an office-based procedure where it can serve as a minimally invasive alternative to, or in concert with, Botulinum Toxin A therapy.

Level of Evidence: 4
Seasonal survival and migratory connectivity of the Eurasian Oystercatcher revealed by citizen science
Authors: Allen Andrew M , Ens Bruno J , Van de Pol Martijn , Van der Jeugd Henk , Frauendorf Magali , Oosterbeek Kees , Jongejans Eelke 
Published: June 2019

AbstractMigratory connectivity describes linkages between breeding and non-breeding areas. An ongoing challenge is tracking avian species between breeding and non-breeding areas and hence estimating migratory connectivity and seasonal survival. Collaborative color-ringing projects between researchers and citizen scientists provide opportunities for tracking the annual movements of avian species. Our study describes seasonal survival and migratory connectivity using data from more than 4,600 individuals with over 51,000 observations, predominantly collected by citizen scientists. Our study focuses on the Eurasian Oystercatcher (Haematopus ostralegus), a species that has experienced a substantial and ongoing decline in recent decades. Multiple threats have been described, and given that these threats vary in space and time, there is an urgent need to estimate demographic rates at the appropriate spatio-temporal scale. We performed a seasonal multi-state (5 geographical areas within The Netherlands) live- and dead-recoveries analysis under varying model structures to account for biological and data complexity. Coastal breeding populations were largely sedentary, while inland breeding populations were migratory and the direction of migration varied among areas, which has not been described previously. Our results indicated that survival was lower during winter than summer and that survival was lower in inland areas compared with coastal areas. A concerning result was that seasonal survival of individuals over-wintering in the Wadden Sea, an internationally important site for over-wintering shorebirds, appeared to decline during the study period. We discuss the outcomes of our study, and how citizen science was integral for conducting this study. Our findings identify how the demographic rates of the oystercatcher vary in space and time, knowledge that is vital for generating hypotheses and prioritizing future research into the causes of decline.
DNA metabarcoding reveals the broad and flexible diet of a declining aerial insectivore
Authors: McClenaghan Beverly , Nol Erica , Kerr Kevin C R 
Published: June 2019

Abstract
Aerial insectivores are highly mobile predators that feed on diverse prey items that have highly variable distributions. As such, investigating the diet, prey selection and prey availability of aerial insectivores can be challenging. In this study, we used an integrated DNA barcoding method to investigate the diet and food supply of Barn Swallows, an aerial insectivore whose North American population has declined over the past 40 yr. We tested the hypotheses that Barn Swallows are generalist insectivores when provisioning their young and select prey based on size. We predicted that the diets of nestlings would contain a range of insect taxa but would be biased towards large prey items and that the diet of nestlings would change as prey availability changed. We collected insects using Malaise traps at 10 breeding sites and identified specimens using standard DNA barcoding. The sequences from these insect specimens were used to create a custom reference database of prey species and their relative sizes for our study area. We identified insect prey items from nestling fecal samples by using high-throughput DNA sequencing and comparing the sequences to our custom reference database. Barn Swallows fed nestlings prey items from 130 families representing 13 orders but showed selection for larger prey items that were predominantly from 7 dipteran families. Nestling diet varied both within and between breeding seasons as well as between breeding sites. This dietary flexibility suggests that Barn Swallows are able to adjust their provisioning to changing prey availability on the breeding grounds when feeding their nestlings. Our study demonstrates the utility of custom reference databases for linking the abundance and size of insect prey in the habitat with prey consumed when employing molecular methods for dietary analysis.
Flexible timing of annual movements across consistently used sites by Marbled Godwits breeding in Alaska
Authors: Ruthrauff Daniel R , Tibbitts T Lee , Gill Robert E 
Published: June 2019

AbstractThe study of avian movement has detailed a spectrum of strategies for the timing and use of sites throughout the annual cycle, from near randomness to complete consistency. New tracking devices now permit the repeated tracking of individual animals throughout the annual cycle, detailing previously unappreciated levels of variation within migratory systems. Godwits (genus Limosa) have featured prominently in studies of avian migration, but information derived from repeated tracking of individuals is limited. The Marbled Godwit subspecies Limosa fedoa beringiae breeds on the central Alaska Peninsula, and little is known about basic aspects of its migration ecology, including the repeatability with which this population times its annual migratory movements or uses migratory and nonbreeding sites. To address these questions, we equipped 9 Marbled Godwits breeding at a site near Ugashik, Alaska, with solar-powered satellite transmitters. We tracked individuals from July, 2008 to October, 2015 and obtained repeat migratory tracks from 5 of these birds. Individuals exhibited high fidelity to breeding, nonbreeding, and migratory stopover sites across years, but in contrast to congeners that conduct consistently timed, long, nonstop migrations, beringiae Marbled Godwits exhibited low levels of individual- or population-level repeatability in the timing of migratory movements. Their relatively short migrations may enable the integration of local environmental cues, potentially facilitating individual flexibility in the timing of annual migratory movements. Curiously, if local cues ultimately drive the timing of Marbled Godwit migratory movements, the population’s relatively constrained distribution during both the breeding and nonbreeding season should serve to synchronize birds if they are responding to similar cues. That our sample of Marbled Godwits nonetheless exhibited within- and between-year variation in the timing of their migratory movements suggests a complex integration of annually variable internal and external cues.