bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Wind Environment Simulation of Commercial District Based on Phoenics—Taking Shanghai Central Building Group as an Example
Authors: Yang Yao , Gou Aiping 
Published: February 2021

Abstract
As one of the central cities of my country's economic construction integration, Shanghai has continuously emerged with high-rise buildings under the trend of a threedimensional urban process. At the same time, the urban environment has become a problem that cannot be ignored, so it is necessary to conduct in-depth research on the wind environment of the building complex. Aiming at the wind environment problems in the city, this paper takes Shanghai’s central business district as an example, uses the software Phoenics to simulate the wind environment of the downtown building group, analyzes the types and functions of the business district building group, and aims at the existing wind environment propose solutions to the problems and provide reference theoretical basis and optimization basis for the formulation of relevant planning and design standards for the central area.
Socio-economic factors on haze pollution: based on panel data of 30 provinces in China
Authors: Huang Minjun , Guo Zhilin , Guo Yangli 
Published: February 2021

Abstract
Since Reform and Opening-up, China’s economy has been developing rapidly and per capita GDP has been raising. However, along with the rapid development of the economy, the problem of air pollution such as haze becomes increasingly serious, which has seriously affected the health of residents and the sustainable development of the economy. In this paper, we adopt spatial econometrics to explore the relationship between socio-economic factors and haze pollution. Firstly, there is significant spatial autocorrelation in haze pollution. Secondly, population, coal consumption and urbanization have positive and significant impacts on haze pollution. In this regard, governments should coordinate economic growth with environmental protection, balance the relationship between economic growth and environmental pollution.
Research Progress and Review of Stainless Steel Civil Architecture
Authors: Chang Xuan , Lei Hong-gang 
Published: February 2021

Abstract
Compared with carbon steel, stainless steel has a series of excellent characteristics, such as beautiful shape, corrosion resistance and ductility. China as a large stainless steel production, but in the face of the study of stainless steel in the building is not thorough, in order to better use of stainless steel in the building structure, we need to increase the study of stainless steel.Through a large number of retrieval of domestic and foreign relevant scholars research,In this paper, the research achievements and progress of stainless steel civil building are reviewed from two aspects: stainless steel material and stainless steel connection.By comparing the similarities and differences between Chinese and European stainless steel codes, this paper finds out the shortcomings, and finally puts forward some suggestions on the application and research of stainless steel in civil buildings.
Pollution and health risk assessment of heavy metals following repeated biogas slurry application in two vegetable fields
Authors: Xie Jiayu , Li Fucheng , Mei Bo 
Published: February 2021

Abstract
Repeated biogas slurry application in soil may cause accumulation of heavy metals. In the experiment, repeated biogas slurry application for 4 (N1) and 10 years (N2) in two vegetable fields, to detect heavy metal content (Zn, Cu, Cr, Pb) and assessment the risk of shortand long-term fertilizing on ecology and health. The result showed, long-term fertilization has increased the content of heavy metal. Zn and Cu in topsoil (0-20 cm) in field N2 exceed the standard, resulting in mild contamination. The value of hazard quotient (HQ) in the same land were as follows: Cr>Pb>Cu>Zn. In general, the noncarcinogenic risk and carcinogenic risk index in N2 were higher than those of N1. In the survey area, there was no noncarcinogenic risk and carcinogenic risk for adults and children. However, children are more sensitive to environmental changes than adults and should pay more attention to protect their health. Longterm monitoring and evaluation of heavy metal hazards is necessary to ensure the safety of biogas slurry used in farmland.
Research on Comprehensive Evaluation of Water Ecological Environment in Small Basin
Authors: Gao Hua , Chu Rui 
Published: February 2021

Abstract
In order to evaluate the water ecological environment quality of small basin and realize scientific management and control of small basin, 15 sampling spots were set up on the small basin of Nanhe River of Qionglai city, 11 indexes were selected from three aspects of water environmental quality, aquatic ecology and aquatic habitat for each sampling spot, and the grey relational analysis (GRA) was used to comprehensively evaluate the water ecological environment quality in the small watershed of Nanhe River of Qionglai city. The results show that it is feasible to use GRA to comprehensively evaluate the regional water ecological environment. The water ecological environment of wenjing River, Baimo River and Dengjiang River is in good condition, and their control standards should be relatively improved. The water ecological environment of the five reaches of Xiaonan River, Shitou River, Pujiang River, Inclined River and the lower reaches of Nanhe River is in poor condition, which requires priority control. Pollution prevention and control measures should be considered comprehensively in combination with the ecological environmental pressure borne by the reach.
Exhaust emission analysis of expressway toll station based on PEMS data
Authors: Liang Tianwen 
Published: February 2021

Abstract
The complex operation characteristics of vehicles at tollbooths on expressway lead to the increase of vehicle emission intensity. In order to reduce energy emissions at toll stations on highways, the toll stations on highways have been replaced with ETC charging mode. In order to effectively evaluate the environmental and energy efficiency after the abolition of toll stations, it is necessary to analyze the correlation between ETC charging mode and lane emission under manual charging mode. Using PEMS data, this paper analyzes in detail the correlation between vehicle operating characteristics and emissions in ETC lane and toll lane. The results show that ETC lane can increase the vehicle traffic efficiency and effectively reduce the exhaust emissions at the toll station. The results of this study will provide a basis for evaluating the energy efficiency of expressway tollbooths after their removal.
Effects of sea reclamation project on heavy metal concentrations in seawater- a case study in Qixingtu
Authors: Hao Zhe , Xu Hengtao 
Published: February 2021

Abstract
Sea reclamation will pollute the environment and reduce the quality of marine water. In order to discuss the impact of reclamation on seawater, 4 heavy metals (Cu, Pb, Zm, Cd) in seawater near Qixingtu were analysized for three time periods: 2007(before the reclamation), 2016(not long after the reclamation) and 2018 (after the reclamation). As a result, concentrations of all the 4 heavy metal met the standard requirements in surrounding seawater of Qixingtu, which indicated a good sea water quality in this area. Except for Cd, all the other heavy metals showed a trend of increasing first and then decreasing. Sea reclamation could indeed aggravate the heavy metal pollution in the surrounding seawater but the impact would recover through reasonable treatment and protection.
Comparative Analysis of Gender Differences in Environmental Values of Chinese People
Authors: Wu Ningning , Wang Shuai , Liang Xiao , Tong Zepeng , Sun Yan 
Published: February 2021

Abstract
This study investigated the differences of environmental values of Chinese people across the country and between men and women. Questionnaire survey method was adopted, T test and variance analysis were used to obtain the results. Result shows that: the overall score of the male NEP scale was significantly lower than that of the female. From the mean value of the five dimensions of environmental values, environmental education should be carried out continuously, with special emphasis on men.
Automated system for cleaning solar panels based on a linear actuator
Authors: Zatsarinnaya Yu N , Amirov D I 
Published: February 2021

Abstract
High volatility in the hydrocarbon market in tandem with an increase in anthropogenic impact on the environment has become one of the main reasons for the accelerated transformation of the global energy industry. Today we have witnessed a gradual increase in the share of renewable energy sources (RES) in the energy industry structure of leading economically developed countries. Solar energy is a promising area of renewable energy for most economies because of its availability and ease of use. Not only for commercial companies but also for the private sector. Pollution of a front surface of a module has become a pressing problem of generating electrical energy by using photovoltaic panels (PVP). For a solution to the problem of timely panels cleaning developers proposed several options of systems none of which were widely used. We started the development of the panel cleaning system which is based on the linear actuator operation principle. The system is planned to be controlled by using the Arduino UNO R3 microcontroller which will allow us to minimize the share of human participation in the cleaning of PVP.
The use of optimization in new design of tribometer specimen clamping system
Authors: Hajdu Š 
Published: February 2021

Abstract
The article deals with the innovation of the clamping part of the tribometer, where the tested specimens are clamped. The new clamping system was designed in the CAD system CATIA V5. The advantages of the new clamping system are compared with the original clamping system of specimens on the tribometer type A30. The new clamping design is evaluated from technical, technological and marginally also from economical point of view. The new clamping design ensures easy handling and exchange of specimens. Easy handling is ensured by the conical collet, which is released by the fixation nut, and subsequently the specimen can be pulled out and replaced with a new one without disassembly the device. The content of the article is also the strength analysis of the conical clamping collet and subsequent optimization. In the strength analysis, the conical collet is pushed into the conical cavity of the tribometer rotor by an outer fixation nut. The result is a numerical simulation of the new designed clamping system which will consist of the rotor, the conical collet, fixation nut and the tested specimen. The von Misses stresses, deformations and reaction forces acting on the collet will be determined by the numerical analysis. Subsequent optimization consisting of defining the target function, boundary conditions and type of optimization will be found. The minimum necessary fixation force which will be obtained from the fixation nut to ensure the transmission of torque to the clamped specimen without slip.
Dynamic Analysis of Cone Waveguide for Ultrasonic Assisted Technological Processes
Authors: Naď M , Šimon Š , Bucha P 
Published: February 2021

Abstract
Research and development of new materials (ceramics and composites) with advanced mechanical properties also leads to the development and application of new so-called hybrid technological processes, which are based on a combination of conventional technological processes with ultrasonic tool vibrations. The fundamental condition for the optimal realization of technological process is the vibration of ultrasonic waveguide in the resonant state. Therefore, the ultrasonic waveguide must have the required modal properties, which depend on the distribution of its mass and stiffness properties. Design and analysis of dynamic properties of ultrasonic cone waveguide with adaptive modification of modal properties is presented in this paper. Modification of modal properties is performed using an embedded core, which changes the distribution of spatial properties of the waveguide structure. The effect of geometric parameters and material properties of the inserted core on the ultrasonic waveguide modal properties (mode shapes, natural frequency, amplification factor) is presented.
Comparison of microstructures and mechanical properties of Al-Ti weld joints prepared by different welding technologies
Authors: Nagy M , Behúlová M , Vrtiel Š 
Published: February 2021

Abstract
This study deals with the evaluation of butt welded-brazed joints of two plates with the thickness of 2 mm from EN AW5083-H111 alloy and titanium Grade 2 prepared by two different welding technologies: laser beam welding-brazing (LBWB) and gas tungsten arc welding (GTAW). ER4047 and ER4043 welding wires with the diameter of 1.2 mm were used as filler materials. The macrostructures, microstructures and mechanical properties of experimental weld joints were analysed and compared. In general, the strength of joints produced by LBWB was higher than the strength of GTAW samples. The highest tensile strength at the level of 245 MPa was measured for the experimental joint made by LBWB using following welding parameters: the laser power of 1800 W, the welding speed of 30 mm.s−1, the laser beam offset to Al-sheet of 400 µm and the wire feed rate of 2.4 m.min−1.
Anchor rods position assesment for connection of manipulating equipment to the transported structure
Authors: Vrtiel Š , Naď M , Behúlová M 
Published: February 2021

Abstract
The manipulation and transport of baskets in which goods or components of various shapes are inserted is very often complicated due to manufacturing tolerances and deformations of the basket. Prediction of the connectivity of the basket and the transport device in the gripping points is very important from the point of view of safe transport of the basket. The methodology and procedure for determining the connectivity of the gripping elements of the transported device with the anchor holes of the basket columns is presented. In the analysis and evaluation of the connectivity of the basket with the transport device, the production tolerances of the basket and the transport device are taken into account and as well as the changes of important dimensions of the basket caused by different loading conditions.
Comorbidity, Functional Impairment, and Emotional Distress: A Coping Mediation Model for Persons With Cancer
Authors: Merluzzi Thomas V , Philip Errol J , Gomer Brenna , Heitzmann Ruhf Carolyn A , Kim Dahyeon 
Published: February 2021

Abstract

Background
Comorbid disease in cancer patients can substantially impact medical care, emotional distress, and mortality. However, there is a paucity of research on how coping may affect the relationship between comorbidity and emotional distress.

Purpose
The current study investigated whether the relations between comorbidity and emotional distress and between functional impairment and emotional distress were mediated by three types of coping: action planning (AP), support/advice seeking (SAS), and disengagement (DD).

Methods
Four hundred and eighty-three persons with cancer completed a measure of functional impairment (Sickness Impact Profile), the Checklist of Comorbid Conditions, the Brief COPE, the Hospital Anxiety and Depression Scale, the Quality of Life Assessment for Cancer Survivors (Negative Feelings Scale), and the Distress Screening Schedule (Emotional Distress Scale). The latter three measures were used to form a latent construct representing the outcome, emotional distress.

Results
Model comparison analysis indicated that the model with DD as a mediator had a better fit than models containing AP and SAS. DD mediated the relationship between functional impairment and emotional distress, so that engaging in DD was associated with greater distress. In addition, comorbidity and functional impairment were directly and positively related to emotional distress, but the relation between comorbidity and distress was not mediated by coping type.

Conclusions
Both comorbidity and functional impairment may be associated with distress, but disengagement coping only mediated the relation involving functional impairment and was positively associated with distress. Future studies can investigate whether teaching active coping or adaptive coping (e.g., through mindfulness exercises) can decrease distress in cancer patients, despite functional impairments.
Sexual dichromatism, size dimorphism, and microscale anatomy of white wing stripe in blue tits
Authors: Janas Katarzyna , Gaweł Paulina , Łatkiewicz Anna , Lutyk Dorota , Gustafsson Lars , Cichoń Mariusz , Drobniak Szymon M 
Published: February 2021

Abstract
Achromatic patches are a common element of plumage patterns in many bird species and there is growing body of evidence that in many avian taxa they can play a signaling role in mate choice. Although the blue tit Cyanistes caeruleus is a well-established model species in the studies on coloration, its white wing patch has never been examined in the context of sex-specific trait expression. In this exploratory study, we examined sexual size dimorphism and dichromatism of greater covert’s dots creating white wing patch and analyzed its correlations with current body condition and crown coloration—a trait with established role in sexual selection. Further, we qualitatively analyzed microstructural barb morphology underlying covert’s coloration. We found significant sexual dimorphism in the dot size independent of covert size and sexual dichromatism in both white dot and blue outer covert’s vane spectral characteristics. Internal structure of covert barbs within the white dot was similar to the one found in barbs from the blue part that is, with a medullary area consisting of dead keratinocytes containing channel-type ß-keratin spongy nanostructure and centrally located air cavities. However, it lacked melanosomes which was the main observed difference. Importantly, UV chroma of covert’s blue vane was positively correlated with crown UV chroma and current condition (the latter only in males), which should be a premise for further research on the signal function of the wing stripe.
An Empirical Evaluation of the Impact of Collaboration on the Pace and Scale of National Forest Management in Idaho
Authors: McIver Chelsea Pennick , Becker Dennis R 
Published: February 2021

Abstract
It has been posited that US national forest administration is undergoing a governance transition characterized by an increase in the involvement and influence of non-state actors. One example of this new form of national forest governance is the use of multi-stakeholder collaborative efforts for planning and implementing projects. This has raised normative and positive questions about the value and effectiveness of such efforts and how they compare with more traditional public involvement and planning processes. This study attempts to address the latter questions by analyzing project-level planning and implementation data while comparing collaborative and traditional projects on a suite of metrics related to pace, scale, complexity, and legal outcomes. We used administrative data from the USDA Forest Service to conduct a quantitative analysis of projects over a 14-year period. We found that collaboratively developed projects were larger and more complex than traditional projects and were associated with greater planning efficiency. This analysis responds to the need to systematically assess the impact of collaborative governance and contributes to existing theories of governance, organizational learning, and policy implementation.
Association Between Combined Lifestyle Factors and Healthy Ageing in Chinese Adults: The Singapore Chinese Health Study
Authors: Zhou Yan-Feng , Song Xing-Yue , Pan Xiong-Fei , Feng Lei , Luo Nan , Yuan Jian-Min , Pan An , Koh Woon-Puay 
Published: February 2021

Abstract

Background
The aim of the study was to examine the relations of individual lifestyle factors and its composite score with healthy ageing among Chinese adults.

Method
We included 14 159 participants aged 45–74 years at baseline from the Singapore Chinese Health Study, a population-based prospective cohort. A protective lifestyle score (0–5 scale) was calculated at baseline (1993–1998) and updated at the second follow-up visit (2006–2010) on the basis of optimal body mass index (18.5–22.9 kg/m2), healthy diet (upper 40% of the Alternative Healthy Eating Index score), being physically active (≥2 h/wk of moderate activity or ≥0.5 h/wk of strenuous activity), nonsmoking (never smoking), and low-to-moderate alcohol drinking (&gt;0 to ≤14 drinks/wk for men and &gt;0 to ≤7 drinks/wk for women). Healthy ageing was assessed at the third follow-up visit (2014–2016) and was defined as absence of specific chronic diseases, absence of cognitive impairment and limitations in instrumental activities of daily living, good mental and overall self-perceived health, good physical functioning, and no function-limiting pain.

Results
About 20.0% (2834) of the participants met the criteria of healthy ageing after a median follow-up of 20 years. Each 1-point increase in the protective lifestyle score computed at baseline and second follow-up visits was associated with higher likelihood of healthy ageing by 25% (95% CI: 20%–30%) and 24% (18%–29%), respectively. The population-attributable risk percent of adherence to 4–5 protective lifestyle factors was 34.3% (95% CI: 25.3%–42.3%) at baseline and 31.3% (23.0%–38.7%) at second follow-up visits for healthy ageing. In addition, positive increase in lifestyle scores from baseline to second follow-up visits was also significantly associated with a higher likelihood of healthy ageing with an odds ratio of 1.18 (95% CI: 1.12%–1.24%) for each increment in protective lifestyle score.

Conclusions
Our findings confirmed that adopting healthy lifestyle factors, even after midlife, was associated with healthy ageing at old age.
Theory of Irrational Politics: Classical Realist Lessons on Foreign Policy Analysis
Authors: Edinger Harald 
Published: February 2021

AbstractThis article argues that efforts to strengthen the theoretical foundations for foreign policy analysis (FPA) should take as a vantage point the smallest social unit—the human being. It advocates far-reaching engagement with psychology and the life sciences for insights on the individual in the social context. Research on emotion, as a general human phenomenon and one that has been extensively researched across disciplines, is thought to offer a particularly promising conceptual lens on foreign policy. For cues on how to incorporate scientific findings with historical analysis and situate resulting hypotheses in relation to prevailing theoretical paradigms, the article draws on classical realism. Especially mid-twentieth century realists such as Hans Morgenthau expressed a nuanced conception of human agency and the interplay between emotion and cognition. Substantial aspects of their theories, based largely on experience and intuition, have been corroborated by recent scientific research. This review is structured around four central issues. These have been both the loci of much criticism levelled at classical realism and remain a challenge to IR as a whole: the levels of analysis problem, the “scaling up” of emotion, the classification and choice of emotion(s), and the accessibility of the political world to scientific method.