bluuebunny/crossref_metadata_2025_split huggingface dataset:
Joint strategic energy and river basin planning to reduce dam impacts on rivers in Myanmar
Authors: Schmitt Rafael J P , Kittner Noah , Kondolf G Mathias , Kammen Daniel M 
Published: May 2021

Abstract
Tackling climate change and human development challenges will require major global investments in renewable energy systems, including possibly into large hydropower. Despite well-known impacts of hydropower dams, most renewable energy assessments neither account for externalities of hydropower nor evaluate possible strategic alternatives. Here we demonstrate how integrating energy systems modeling and strategic hydropower planning can resolve conflicts between renewable energy and dam impacts on rivers. We apply these tools to Myanmar, whose rivers are the last free-flowing rivers of Asia, and where business-as-usual (BAU) plans call for up to 40 GW of new hydropower. We present alternative energy futures that rely more on scalable wind and solar, and less on hydropower (6.7–10.3 GW) than the BAU. Reduced reliance on hydropower allows us to use river basin models to strategically design dam portfolios for minimized impact. Thus, our alternative futures result in greatly reduced impacts on rivers in terms of sediment trapping and habitat fragmentation, and result in lower system costs ($8.4 billion compared to $11.7 billion for the BAU). Our results highlight specific opportunities for Myanmar but also demonstrate global techno-ecological synergies between climate action, equitable human development and conservation of riparian ecosystems and livelihoods.
Design of high-strength threshing rack for variable-diameter cylinders
Authors: Su Zhan , Li Yaoming , Liu Yanbin 
Published: May 2021

Abstract
In order to solve the problems of deformation caused by traditional threshing rack applied to the variable-diameter cylinder, two high-strength threshing racks (truss-type threshing rack, reinforced plate-type threshing rack) were designed. Through statics quantitative analysis on the basis of theoretical analysis and finite element analysis and calculation conducted on the rigidity and strength characteristics of traditional threshing racks, truss threshing racks and reinforced plate threshing racks, it shows that the reinforced plate threshing rack with higher strength, simpler structure and lighter weight is more suitable for the operation requirements of variable diameter cylinders.
Steady-State Stability Analysis of Synchronization Loops in Weak-Grid-Connected Microgrid
Authors: Rong Shuang , Ma Jiancheng , Chen Xiaoguang , Guan Wanlin , Hao Wenbo , Cui Jiapeng , Gu Bowen 
Published: May 2021

Abstract
The Microgrid (MG) is a flexible system composed of paralleled inverters. When the MG runs in grid-connected mode, the first step is to synchronize with the grid stably. However, the weak grid may interact with the synchronization loops and result in instability issues, where the steady-state instability of the MG coming from the loss of equilibrium points remains to be studied. Concretely, the synchronization loop of each inverter determines the equilibrium point. While, when the paralleled inverters work together, interactions among synchronization loops complicate the steady-state analysis. To recognize the synchronization mechanism and steady-state stability of the MG, a kind of hybrid quasi-static models of synchronization loops in the MG is developed in this paper. Studies show that the stable grid-injected currents of current-controlled inverters (CCIs) in a MG are greatly increased, while the allowed grid-injected power of the voltage-controlled inverter (VCI) are decreased obviously and it is closely dependent on the operating currents of the CCIs. Therefore, it is essential to recognize the operating points of each inverter in a MG considering the steady-state stability. Finally, the simulations are carried out to verify the analysis.
Analysis of the Knowledge Map and Knowledge Modelling Based on CSSCI: A Case of China’s Drug Problem Study
Authors: Xu Haokang , Ding Meng , Zhu Ai’nan , Wu Changming 
Published: May 2021

Abstract
In this paper, CiteSpace software is used to quantitatively analyze 568 related literature in CSSCI database from 2009 to 2019, and draw the knowledge map of research keywords. Despite of a simple data or information flow diagrams, we also used the mathematical modelling to make a more comprehensive analysis. On this basis, the development history and research focus of drug research are summarized. The results show that: at present, the research on drug problem has expanded from drug problem itself to drug-related problem, mainly focusing on law and history; the research field has been refined, and quantitative research methods have been increased.
Analysis of Telecommunication Fraud Cases Based on TF-IDF Algorithm
Authors: Yang Hulin , Zhu Ai’nan 
Published: May 2021

Abstract
[Purpose/Meaning] In the fast-developing information age, the “Internet +” model has deeply affected every bit of daily life. This has also created a lot of information and data for criminals who commit telecom fraud, leading to telecom fraud Become a new type of “non-contact” high-incidence crime. [Methods/Process] This study uses text analysis, using python crawler, Jieba word segmentation, TF-IDF algorithm and other tools to analyze and calculate the obtained text, using SPSS modeler to mine its data. [Result/Conclusion]Analysis of the content of the text obtained, found that as long as strangers on the phone there is a 40% probability; women become victims than twice as much as men; telecommunications fraud crime brush orders, fake customer service friends are still commonly used criminal means.
Effect of amendments (lime–zeolite–biochar) on the immobilization of Cd and Pb in a contaminated acidic soil
Authors: Zhang Di , Li Ting , Wu XiaoXia , Wang YuTing 
Published: May 2021

Abstract
An incubation experiment was carried out to study the remediation effect of lime, zeolite and biochar under different ratios on cadmium (Cd) and lead (Pb) contaminated soil. Soil pH, organic carbon (SOC), bioavailability and mobility of Cd and Pb were investigated. The results indicated that combined application of lime, zeolite and biochar can significantly increase soil pH, the increment was from 0.15 to 0.76. Compared to the control treatment, the concentrations of CaCl2-, TCLP-Cd and Pb significantly decreased in all amended treatments. Considering the soil environmental quality and immobilization efficiency, the ratio of lime, zeolite and biochar was determined to be 1:2:2. The application rate of combined amendment (lime:zeolite:biochar=1:2:2) had obvious effect on soil pH, SOC and removal efficiency of Cd and Pb, promoting the acid soluble fractions of Cd and Pb to residual fractions, especially in higher application rate (5.0% and 10.0%). However, there was no significant difference when the application rate exceeded 5.0%. Therefore, it was suggested that the application rate of combined amendment (lime:zeolite:biochar=1:2:2) could be 5.0% in short-term soil remediation.
Study on the Evolution of Guangxi Traditional Pile-Dwelling Architecture —— Take Baise, Guangxi as an example
Authors: Lu Cong , Zhang Wen 
Published: May 2021

Abstract
With the development of history and the transformation and renewal of production methods, human construction activities will reflect the content of production activities at that time to a certain extent. Guangxi is located on the southeastern edge of the Yunnan-Guizhou Plateau, the second step in the topography of the country. Guangxi is located in the western part of the hills of Guangdong, Guangxi. The mountain area is vast, and it is a zone of communication between regions, ethnic groups, and countries. It has rich ethnic and regional cultural characteristics, and various architectural phenomena are splendid. Pile-Dwelling architecture is a traditional dwelling form of the Baiyue people, belonging to a “native” type of regional architecture. It has the innate advantages of using topography and striving for space, and is widely used in the mountainous areas of Guangxi. This paper will take Guangxi traditional dry fence architecture as the research object, and will conduct research on Guangxi’s traditional vernacular architectural culture. Through combing and researching the development of dry fence architecture in China, it will summarize the evolution law of Guangxi traditional Pile-Dwelling architecture, in order to protect Guangxi Zhuang’s architectural cultural heritage and providing a basis for regional architectural creation in Guangxi. It will be of great significance for achieving ecological harmony and promoting the construction of new towns.
Finite Element Analysis of Mechanical Behavior of Assembled SRC Beam-CFST Column Composite Frame
Authors: Zhang Wen , Lu Cong , Liang Peng , Huang Rongxing , Wang Jie , Zhou Wanguan 
Published: May 2021

Abstract
Prefabricated buildings have the advantages of good component quality, fast construction speed and less construction waste, which is an important measure to implement ecological civilization, save resources, protect the environment and reduce pollution. The composite structure of section steel and concrete gives full play to the advantages of light weight, high strength, assembling construction and high recovery rate of steel. However, the construction method of assembly is still in the research stage. In order to explore the key problems in engineering application, such as mechanical performance, material behavior, failure phenomenon, connection design etc. of SRC beam-CFST column composite frame (hereinafter referred to as “composite frame”). On the basis of the experimental results of exterior joints in the early stage, the whole process mechanical behavior of composite frames under vertical load and horizontal low cyclic load is studied by using ABAQUS finite element analysis software. The research shows that the assembled connection mode has better static and seismic performance, and the material performance is fully utilized. The mechanical performance of the full welded and bolt-welded hybrid connection is similar. Increasing the thickness of the ring plate and the height of the beam section can improve the bearing capacity and energy dissipation capacity.
An Empirical Research on Contribution of Agricultural Mechanization to Ecological Protection and Restoration in Rural of China
Authors: Liu Yaqiong 
Published: May 2021

Abstract
[Purpose/significance] In order to explore the supporting mechanism and influence relationship of agricultural mechanization on rural ecological restoration and then put forward the improvement strategy of rural ecological restoration in combination with the development of agricultural mechanization, the structural equation model was built based on a number of related indexes of 31 provinces and cities from 2005 to 2017. [Results/conclusion] The results show that the direct effect of ecological construction and protection investment on agricultural mechanization is 1.126, while the direct effect of agricultural mechanization on ecological construction and protection investment is -3.060. In terms of the impact of various variables on ecological protection and construction investment, the direct impact of agricultural mechanization is the most significant, with the largest degree of effect, followed by the area of water-logging removal, soil and water loss control ranked third, and machine tillage rate ranked fourth. Empirical evidence shows that agricultural mechanization development is a powerful means to promote the efficiency of rural ecological protection and restoration, so we should further promote the development of agricultural mechanization, optimize the structural level of various measures in the development of agricultural mechanization, and strengthen the combined effect of direct impact and indirect impact to vigorously develop ecological conservation and restoration in rural areas.
Research on the Project-Centric Social Work Practice Base Construction Mode
Authors: Li Xue , Le Shen , Liu Jiu 
Published: May 2021

Abstract
Social work is a practical discipline with practical and operational orientation. Practical teaching is of great importance in cultivating full-time masters of social work. Therefore, the demand for the construction of high-quality social work practice base has become increasingly prominent. It has been found that the traditional social work practice base has disadvantages, such as “administration of practice content”, “hollowing off-campus supervision” and “insufficient funds restricting the function of the base”, which compresses the professional growth space of students in the practice base, resulting in the weakening of practice and even the inertia of students’ professional growth. This paper attempts to propose a project-centric social work practice base to make up for the disadvantages of the traditional social work practice base, that is, taking the community construction project purchased by a foundation as an example, this article explores the 1+2+3+4+5 operation mode of the practice base, and realizes the maximization of the interests of both parties in the construction of the practice base and the compound function of the base.
Scalings for diffraction-decorated caustics in gravitational lensing
Authors: Berry M V 
Published: May 2021

Abstract
In the astronomically natural transitional approximations for waves near caustics in gravitational lensing, the familiar wavelength scalings associated with short-wave asymptotics are accompanied by a variety of dependences on disparate astronomical lengths, such as the Schwarzschild radius, separation of binary stars, and distance to the lens. These dependences are calculated analytically for spacings of interference fringes and the corresponding intensity amplifications, for two much-studied models: lensing of a distant source by an isolated star and near the fold and cusp caustics from a binary star lens. If the aperture of a telescope looking in the direction of the source is modelled by Gaussian apodization, the image is a complexification of the wave in the observation plane.
Influence of thermal annealing on the morphology and magnetic domain structure of Co thin films
Authors: Li Muchan , Tian Zhongzheng , Yu Xuemin , Yu Dachen , Ren Liming , Fu Yunyi 
Published: May 2021

Abstract
Centimeter scale cobalt films with various thicknesses (8 nm ∼ 100 nm) were deposited by electron beam evaporation (EBE) and then annealed in a gas mixture of Ar and H2 at temperatures ranging from 200 °C to 500 °C. Advanced characterization techniques (e.g., XRD, SEM, AFM and MFM) were employed to investigate the influence of annealing on the morphology, crystal structures and magnetic domain structures of Co thin films. The results of SEM and AFM suggest that there is no obvious change in the morphology of Co film before and after annealing especially for thicker films and the root-mean-square roughness of Co film surface is slightly reduced after annealing. The influence of thermal annealing on the magnetic domain structure of EBE Co thin films was investigated by magnetic force microscopy (MFM) for the first time. It is found that even if there is no clear domain structure in the as-deposited films, it is possible to obtain periodic stripe domains with perpendicular magnetic anisotropy (PMA) by thermal annealing owing to the development of HCP Co phase, which was confirmed by XRD analysis. The correlations between the film morphology, thickness and magnetic domain structure are discussed qualitatively. Based on the periodic stripe magnetic domains, the domain-wall energy density of annealed cobalt films is calculated and this study found that the annealing has almost no effect on the energy density of the domain-wall. This work provides an effective way to obtain the perpendicular magnetic anisotropy (PMA) for practical applications.
Emotions in Music: Hanslick and His False Follower
Authors: Guczalski Krzysztof 
Published: May 2021

Abstract
Nick Zangwill (2004, 2007) appears to be acquiring the status of repudiator-in-chief of emotion in music. He is invoked in this role by such authors as Kraut (2007, p. 67), Bonds (2014, p. 5), Robinson (2014), Young (2014, pp. vii, 1, 3–4, 151), Davies (2017) and Kania (2017). His ‘manifesto’ paper (2004) was recently reprinted in Lamarque and Olsen (2018, pp. 574–582). This development is unfortunate, because Zangwill, for all his radical-sounding theses, actually argues against views that hardly anyone holds. What is more, some of his arguments in favour of the obvious seem confused and defective. But as for his really radical thesis that ‘Music, in itself, has nothing to do with emotion’, he provides hardly any justification. What is more, contrary to what Zangwill believes, such justification is not to be found in Hanslick, who in fact sees emotional content as a relatively important element of music.
Redox-related gene expression and sugar accumulation patterns are altered in the edible inflorescence produced by the cultivated form of pacaya palm (Chamaedorea tepejilote)
Authors: Hosni Hanene , Diallo Abdoulaye , Morcillo Fabienne , Vaissayre Virginie , Collin Myriam , Tranchant-Dubreuil Christine , Dussert Stéphane , Joët Thierry , Castaño Felipe , Marquínez Xavier , Stauffer Fred W , Hodel Donald R , Castillo Mont Juan Jose , Adam Hélène , Jouannic Stefan , Tregear James W 
Published: May 2021

Abstract

Background and Aims
The pacaya palm is a dioecious neotropical palm species that is exploited in Latin America for its male inflorescence, which is edible when immature. It is cultivated, in a non-intensive manner, in Guatemala, where a morphotype occurs that produces much larger, more highly branched inflorescences compared with wild palms. We sought to identify molecular factors underlying this phenotypic divergence, which is likely to be a product of domestication.

Methods
We performed RNA-seq-based studies on immature pacaya palm male inflorescences in order to identify genes that might be directly or indirectly affected in their expression in relation to domestication. We also measured the accumulation of a range of soluble sugar molecules to provide information on the biochemical status of the two different types of material.

Key Results
A total of 408 genes were found to display significantly different expression levels between the wild and cultivated morphotypes. Three different functional categories were found to be enriched in the gene set that was upregulated in the cultivated morphotype: redox balance; secondary metabolism; and transport. Several sugars were found to accumulate at higher levels in inflorescences of the cultivated morphotype, in particular myo-inositol, fructose and glucose.

Conclusions
The observed upregulation of redox-related genes in the cultivated morphotype is corroborated by the observation of higher myo-inositol accumulation, which has been shown to be associated with enhanced scavenging of reactive oxygen species in other plants and which may affect meristem activity.
The Impact of Learning and Memory on Performance Validity Tests in a Mixed Clinical Pediatric Population
Authors: Nayar Kritika , Ventura Lea M , DeDios-Stern Samantha , Oh Alison , Soble Jason R 
Published: May 2021

Abstract

Objective
This study examined the degree to which verbal and visuospatial memory abilities influence performance validity test (PVT) performance in a mixed clinical pediatric sample.

Method
Data from 252 consecutive clinical pediatric cases (Mage=11.23 years, SD=4.02; 61.9% male) seen for outpatient neuropsychological assessment were collected. Measures of learning and memory (e.g., The California Verbal Learning Test-Children’s Version; Child and Adolescent Memory Profile [ChAMP]), performance validity (Test of Memory Malingering Trial 1 [TOMM T1]; Wechsler Intelligence Scale for Children-Fifth Edition [WISC-V] or Wechsler Adult Intelligence Scale-Fourth Edition Digit Span indices; ChAMP Overall Validity Index), and intellectual abilities (e.g., WISC-V) were included.

Results
Learning/memory abilities were not significantly correlated with TOMM T1 and accounted for relatively little variance in overall TOMM T1 performance (i.e., ≤6%). Conversely, ChAMP Validity Index scores were significantly correlated with verbal and visual learning/memory abilities, and learning/memory accounted for significant variance in PVT performance (12%–26%). Verbal learning/memory performance accounted for 5%–16% of the variance across the Digit Span PVTs. No significant differences in TOMM T1 and Digit Span PVT scores emerged between verbal/visual learning/memory impairment groups. ChAMP validity scores were lower for the visual learning/memory impairment group relative to the nonimpaired group.

Conclusions
Findings highlight the utility of including PVTs as standard practice for pediatric populations, particularly when memory is a concern. Consistent with the adult literature, TOMM T1 outperformed other PVTs in its utility even among the diverse clinical sample with/without learning/memory impairment. In contrast, use of Digit Span indices appear to be best suited in the presence of visuospatial (but not verbal) learning/memory concerns. Finally, the ChAMP’s embedded validity measure was most strongly impacted by learning/memory performance.
Novel Clitoral Reconstruction and Coverage With Sensate Labial Flaps: Potential Remedy for Female Genital Mutilation
Authors: Wilson Adel M , Zaki Amr A 
Published: May 2021

Abstract

Background
Complications caused by female genital mutilation (FGM), such as clitoral pain, reduced sensation, and diminished sexual function, can be alleviated by clitoral reconstruction, which can also improve the aesthetics and restore the anatomy of the genitalia.

Objectives
The aim of this study was to create sensate labial flaps to cover the neoclitoris and assess the outcome of the procedure.

Methods
Between December 2018 and July 2020, 40 patients with FGM underwent clitoral reconstruction and coverage with sensate labial flaps donated by the remnant of the labia minora and were followed prospectively. Flaps were mapped on the less-mutilated labia minora according to recent descriptions of arterial anatomy and innervation. Before the surgery, the patients’ clitoral sensation was assessed on a 6-point scale and they were also given the Female Sexual Functional Index (FSFI) questionnaire to complete. Eight and 24 weeks postoperatively, the same assessment was repeated and the data compared.

Results
The mean Female Sexual Functional Index score increased significantly from 11.64 (range, 2.8-25.6) preoperatively to 29.14 (range, 12.8-35.4) postoperatively. Similarly, clitoral sensation increased significantly from 2.35 (range, 1-4) before the surgery to 4.9 (range, 2-6) after the surgery. In total, 95% of patients benefited from the surgery.

Conclusions
Clitoral reconstruction with sensate labial flaps after FGM resulted in significant improvements in sexual function, clitoral sensation, genital aesthetics, and self-esteem.

Level of Evidence: 4