bluuebunny/crossref_metadata_2025_split huggingface dataset:
Laser modification of Au–CuO–Au structures for improved electrical and electro-optical properties
Authors: Zheng Shuo , Duley Walter W , Peng Peng , Zhou Norman 
Published: March 2022

Abstract
CuO nanomaterials are one of the metal-oxides that received extensive investigations in recent years due to their versatility for applications in high-performance nano-devices. Tailoring the device performance through the engineering of properties in the CuO nanomaterials thus attracted lots of effort. In this paper, we show that nanosecond (ns) laser irradiation is effective in improving the electrical and optoelectrical properties in the copper oxide nanowires (CuO NWs). We find that ns laser irradiation can achieve joining between CuO NWs and interdigital gold electrodes. Meanwhile, the concentration and type of point defects in CuO can be controlled by ns laser irradiation as well. An increase in the concentration of defect centers, together with a reduction in the potential energy barrier at the Au/CuO interfaces due to laser irradiation increases electrical conductivity and enhances photo-conductivity. We demonstrate that the enhanced electrical and photo-conductivity achieved through ns laser irradiation can be beneficial for applications such as resistive switching and photo-detection.
Active optical metasurfaces: comprehensive review on physics, mechanisms, and prospective applications
Authors: Yang Jingyi , Gurung Sudip , Bej Subhajit , Ni Peinan , Howard Lee Ho Wai 
Published: March 2022

Abstract
Optical metasurfaces with subwavelength thickness hold considerable promise for future advances in fundamental optics and novel optical applications due to their unprecedented ability to control the phase, amplitude, and polarization of transmitted, reflected, and diffracted light. Introducing active functionalities to optical metasurfaces is an essential step to the development of next-generation flat optical components and devices. During the last few years, many attempts have been made to develop tunable optical metasurfaces with dynamic control of optical properties (e.g., amplitude, phase, polarization, spatial/spectral/temporal responses) and early-stage device functions (e.g., beam steering, tunable focusing, tunable color filters/absorber, dynamic hologram, etc) based on a variety of novel active materials and tunable mechanisms. These recently-developed active metasurfaces show significant promise for practical applications, but significant challenges still remain. In this review, a comprehensive overview of recently-reported tunable metasurfaces is provided which focuses on the ten major tunable metasurface mechanisms. For each type of mechanism, the performance metrics on the reported tunable metasurface are outlined, and the capabilities/limitations of each mechanism and its potential for various photonic applications are compared and summarized. This review concludes with discussion of several prospective applications, emerging technologies, and research directions based on the use of tunable optical metasurfaces. We anticipate significant new advances when the tunable mechanisms are further developed in the coming years.
The Simultaneous Three-channel Multicolor CCD Photometric System of the 1.2 m Telescope at Jilin Astronomical Observatory*
Authors: Niu Bing-Li , Liu Cheng-Zhi , Li Zhen-Wei , Kang Zhe , Lv You 
Published: March 2022

Abstract
We will introduce the construction and design of a new simultaneous three-channel multicolor CCD photometer. This photometer has been mounted on the 1.2 m telescope at Jilin Astronomical Observatory, and is applied to study space debris, gamma-ray burst afterglows, asteroids and other rapidly variable objects. As one of the ground follow-up telescopes of the Chinese-French Space-based multi-band astronomical Variable Objects Monitor (SVOM) mission, it appears very essential to evaluate the performance of the photometry system of this photometer, which can achieve simultaneous imaging within a field of view of 21.′5 × 21.′5, 21.′5 × 21.′5 and 21.′3 × 21.′3 in the Sloan Digital Sky Survey (SDSS) g′, r′, i′ bands, respectively. Photometric calibrations were carried out by using plenty of SDSS standard stars, and the relationship between the photometric system and the Johnson-Bessel filter system was also studied. The results of the performance evaluation from observing open cluster M67 are presented.
On non-abelian quadrirational Yang–Baxter maps*
Authors: Kassotakis Pavlos , Kouloukas Theodoros 
Published: March 2022

Abstract
We introduce four non-equivalent lists of families of non-abelian quadrirational Yang–Baxter maps, the so-called

F

,

H

,

K

and Λ lists. We provide the canonical form of the generic map in each list, which under various degenerations lead to the remaining members of each list. In the abelian setting all four lists constitute the well known F and H lists of quadrirational Yang–Baxter maps.
Improving the reliability of machine and tractor units in technological processes
Authors: Lebedev P A , Lebedev A T , Pavlyk R V , Zakharin A V 
Published: March 2022

Abstract
The paper describes a method for improving the reliability of a machine-tractor unit in technological processes. Two approaches aimed at improving the reliability of the least reliable elements are analyzed. To improve the reliability of power units, it is proposed to spray SiO2-based thin-film coatings on the working surfaces of plunger pairs. The calculations show that an increase in the service life of the plunger pairs is 2 ... 2.5 times higher than that of the serial ones. To improve the reliability of working machines, an example of the improved reliability of cultivator paws due to the modernization of their design is provided. Results of the comparative tests showed that the solutions make it possible to reduce the traction resistance when performing field works. In addition, it is possible to replace a nose of the cultivator paw.
Minimum required power capacity of tractors depending on grain cultivation methods
Authors: Hafizov C A , Hafizov R N , Nurmiev A A , Khaliullin F H 
Published: March 2022

Abstract
The paper identifies aggregate power capacity produced by tractor engines on a farm engaged in spring grain cultivation alternating methods for primary and secondary tillage by years and crop rotations. The required power capacity is calculated based on an energy tractor-implement model in primary, secondary tillage and sowing operations. Power capacity is enhanced with due account of measurements and quantity of equipment to have an impact on spring grain harvest. The minimum power capacity is required for no till methods (0.93-1.42 kW/ha). The maximum power capacity is required for deep autumn plowing, spring harrowing and, after 5-8 days, simultaneous cultivation, sowing and rolling with single-operation implements (3.3 kW/ha). The optimal weight of a universal tractor for performing all technological operations is 13 tons, its engine power is 366 kW. The number of tractors required to cultivate 1000 hectares of arable land for spring crops is 9. With these measurements, the total energy consumption for the above methods, being alternated by years, will be minimal.
Artificial Neural Network Performance Analysis for Solar Radiation Prediction, Case Study at Baron Techno Park
Authors: Prasetyo Ridwan Budi , Rahman Haidar , Alfi Ikrima , Sakti Fredi Prima 
Published: March 2022

Abstract
As stated in Government Regulation No. 79 of 2014 on National Energy Policy (KEN), the New and Renewable Energy (NRE) mix target is at least 23% by 2025. Now the utilization of solar energy in Indonesia has only reached about 0.05% or 100 MW. Government compiles a roadmap for the use of solar energy that targets the installed PV mini-grid capacity until 2025 is 6.5 GW. Technically, before installing a solar power plant, solar potential data is needed for a certain period of time. This is absolutely necessary considering the potential for solar is intermittent. The solar data are then processed to create a model forecasting so that it can optimize the resulting energy output. Forecasting using artificial intelligence with artificial neural network algorithms is a good solution because it has higher accuracy. To see the comparison of the performance of the ANN of this research with previous research. The finding shows that Baron 1-7-1 performed better than 2P 1-2-1 and Baron 1-2-1, regardless that the RMSE have a slight difference but still Baron 1-7-1 outperformed the others, with the best value of RMSE 0.15185 and R2 of 0.88996.
Comparison of thickness shear wall against drift floor using pushover method
Authors: Astre Widyasa Dwi Rizky , Hidayat Irpan , Andryan  
Published: March 2022

Abstract
Lateral load or earthquake disaster can damage the structure of a highrise building. Therefore, calculations are needed to avoid massive damage to the structure when an earthquake occurs and give a load to the structure. One of the efforts that is done to resist the earthquake is using shear wall. On this research, there will be a comparison of shear wall thickness that will be used for the building model. Where there is existing model with the shear wall thickness 400 mm, modified model with the shear wall thickness 350 mm and 300 mm, and model without shear wall. Earthquake standards is using SNI 1726-2019, load standards are using SNI 1727-2013, concrete design is using SNI 2847-2019, and for the structure analysis is using ETABS Program. First step is calculating the Demand Capacity Ratio (DCR) of the structure element to determine if the structure needed to be analyse using non-linear static (pushover) or not. And then there will be drift ratio calculation to determine the building performance level using Federal Emergency Management Agency (FEMA) 356 provisions.
Water Conservation Calculations in Eco-Friendly Office in South Jakarta
Authors: Firdausa R R , Ardiani Y M 
Published: March 2022

Abstract
The clean water crisis and environmental issues require us to make wise efforts in using clean water. Significant savings in the use of clean water can be achieved by conserving air. In this project, a rental office building was designed in the Setiabudi area, South Jakarta that can make the most of the rainfall possible to locate and use it. In addition, the type of waste is managed so that the recycling process can be selected. Besides that, clean water management is also carried out according to the level of quality and use. In this project, clean water is divided into two, namely primary water and secondary water. Primary water is used for human needs and secondary water for human and machine needs. Liquid waste from human activities is divided into gray water which will be recycled and black water which is not recycled. From the results of this recycling and harvesting rainwater with a temporary catchment area only from the roof, the conservation conservation is 52.8%.
The Openings and Lighting Design Strategies of Primary School in Jakarta
Authors: Natalia S , Suharjanto G 
Published: March 2022

Abstract
The level of illumination in a room is very important to support the activities that are being carried out in the room. The width of the openings and the side lighting design strategy are things that need to be analyzed to maximize the natural lighting that enters the room without dazzling the eyes, especially in the classroom. This study aims to determine the width of the opening and the side lighting design strategy of an elementary school in Jakarta that can maximize natural lighting without dazzling the eyes based on the level of illumination so that visual comfort standards can be achieved. The method used is to build a building using FormIt software to determine which side of the building gets sun exposure and makes several simulations of the area of openings and several simulations of side lighting design strategies using the Velux Daylight Visualizer 3 software to determine the level of lighting in the room according to the standard lux requirements for educational institutions. From the research results, it can be seen that the width of the opening and the side lighting design strategy of a room affects the level of natural lighting obtained.
Theory of zero-field superconducting diode effect in twisted trilayer graphene
Authors: Scammell Harley D , Li J I A , Scheurer Mathias S 
Published: March 2022

Abstract
In a recent experiment (Lin et al 2021 arXiv:2112.07841 [cond-mat.str-el]), the superconducting phase hosted by a heterostructure of mirror-symmetric twisted trilayer graphene and WSe2 was shown to exhibit significantly different critical currents in opposite directions in the absence of external magnetic fields. We here develop a microscopic theory and analyze necessary conditions for this zero-field superconducting diode effect. Taking into account the spin–orbit coupling induced in trilayer graphene via the proximity effect, we classify the pairing instabilities and normal-state orders and derive which combinations are consistent with the observed diode effect, in particular, its field trainability. We perform explicit calculations of the diode effect in several different models, including the full continuum model for the system, and illuminate the relation between the diode effect and finite-momentum pairing. Our theory also provides a natural explanation of the observed sign change of the current asymmetry with doping, which can be related to an approximate chiral symmetry of the system, and of the enhanced transverse resistance above the superconducting transition. Our findings not only elucidate the rich physics of trilayer graphene on WSe2, but also establish a means to distinguish between various candidate interaction-induced orders in spin-orbit-coupled graphene moiré systems, and could therefore serve as a guide for future experiments as well.
Photoexcited carrier dynamics in a GaAs photoconductive switch under nJ excitation
Authors: XU Ming , WANG Yi , LIU Chun , SI Xinyang , GAO Rongrong , LUO Wei , QU Guanghui , JIA Wanli , LIU Qian 
Published: March 2022

Abstract
In this article, the bunched transport of photoexcited carriers in a GaAs photoconductive semiconductor switch (PCSS) with interdigitated electrodes is investigated under femtosecond laser excitation. Continuous outputs featuring high gain are obtained for single shots and at 1 kHz by varying the optical excitation energy. An ensemble three-valley Monte Carlo simulation is utilized to investigate the transient characteristics and the dynamic process of photoexcited carriers. It demonstrates that the presence of a plasma channel can be attributed to the bunching of high-density electron–hole pairs, which are transported in the form of a high-density filamentary current. The results provide a picture of the evolution of photoexcited carriers during transient switching. A photoinduced heat effect is analyzed, which reveals the related failure mechanism of GaAs PCSS at various repetition rates.
Investigation of the gas bubble dynamics induced by an electric arc in insulation oil
Authors: YAN Chenguang , XU Ya , ZHANG Peng , KANG Shiqi , ZHOU Xian , ZHU Shuyou 
Published: March 2022

Abstract
In this work, experimental and theoretical studies were carried out on arc-induced bubble dynamic behaviors in insulation oil. Direct experimental evidence indicated that the arc-induced bubble experiences pulsating growth rather than a continuous expansion. Furthermore, a theoretical model and numerical calculation method were proposed, which revealed the dynamic mechanism of bubble growth. Good agreement between the theoretical results and experimental observations verified the general correctness and feasibility of the proposed method.
The influence of charge characteristics of suspension droplets on the ion flow field in different temperatures and humidity
Authors: SHEN Nanxuan , SU Zihan , ZHANG Yuanhang , LU Tiebing 
Published: March 2022

Abstract
In order to clarify the charging characteristics of suspension droplets in ion flow field under different temperatures and humidity, the effective charging factor used to characterize the charging characteristics of suspension droplets is introduced in this paper, and a calculation method of charging factor is proposed based on the upstream finite element method (FEM). Then, the charging factor under different temperatures and humidity is calculated, and the analytic expression of the charging factor considering the influence of temperature and humidity is obtained by fitting the calculation results. The influence of suspension droplets on the ion flow field is analyzed. The results show that the charging factor is small and increases little with the relative humidity when the relative humidity is less than 60%, and the charging factor is large and increases rapidly with the relative humidity when the relative humidity is more than 60%. At the same relative humidity, the charging factor increases linearly with the temperature. The influence of charged suspension droplets on the ion flow field can be ignored when the relative humidity is less than 60% and must be considered under high temperature and humidity. The calculation method and analytic expression of the charging factor proposed in this paper can be used to model of ion flow field considering the influence of temperature and humidity and provide technical support for the construction of HVDC transmission lines across high temperature and humidity.
Inorganic phosphorus nutrition in green-leaved terrestrial orchid seedlings
Authors: Davis Belinda , Lim Wei-Han , Lambers Hans , Dixon Kingsley W , Read David J 
Published: March 2022

Abstract

Background and Aims
Many terrestrial orchids have an obligate dependence on their mycorrhizal associations for nutrient acquisition, particularly during germination and early seedling growth. Though important in plant growth and development, phosphorus (P) nutrition studies in mixotrophic orchids have been limited to only a few orchid species and their fungal symbionts. For the first time, we demonstrate the role of a range of fungi in the acquisition and transport of inorganic P to four phylogenetically distinct green-leaved terrestrial orchid species (Diuris magnifica, Disa bracteata, Pterostylis sanguinea and Microtis media subsp. media) that naturally grow in P-impoverished soils.

Methods
Mycorrhizal P uptake and transfer to orchids was determined and visualized using agar microcosms with a diffusion barrier between P source (33P orthophosphate) and orchid seedlings, allowing extramatrical hyphae to reach the source.

Key Results
Extramatrical hyphae of the studied orchid species were effective in capturing and transporting inorganic P into the plant. Following 7 d of exposure, between 0.5 % (D. bracteata) and 47 % (D. magnifica) of the P supplied was transported to the plants (at rates between 0.001 and 0.097 fmol h−1). This experimental approach was capable of distinguishing species based on their P-foraging efficiency, and highlighted the role that fungi play in P nutrition during early seedling development.

Conclusions
Our study shows that orchids occurring naturally on P-impoverished soils can obtain significant amounts of inorganic P from their mycorrhizal partners, and significantly more uptake of P supplied than previously shown in other green-leaved orchids. These results provide support for differences in mycorrhiza-mediated P acquisition between orchid species and fungal symbionts in green-leaved orchids at the seedling stage. The plant–fungus combinations of this study also provide evidence for plant-mediated niche differentiation occurring, with ecological implications in P-limited systems.
decoupleR: ensemble of computational methods to infer biological activities from omics data
Authors: Badia-i-Mompel Pau , Vélez Santiago Jesús , Braunger Jana , Geiss Celina , Dimitrov Daniel , Müller-Dott Sophia , Taus Petr , Dugourd Aurelien , Holland Christian H , Ramirez Flores Ricardo O , Saez-Rodriguez Julio 
Published: March 2022

AbstractSummaryMany methods allow us to extract biological activities from omics data using information from prior knowledge resources, reducing the dimensionality for increased statistical power and better interpretability. Here, we present decoupleR, a Bioconductor and Python package containing computational methods to extract these activities within a unified framework. decoupleR allows us to flexibly run any method with a given resource, including methods that leverage mode of regulation and weights of interactions, which are not present in other frameworks. Moreover, it leverages OmniPath, a meta-resource comprising over 100 databases of prior knowledge. Using decoupleR, we evaluated the performance of methods on transcriptomic and phospho-proteomic perturbation experiments. Our findings suggest that simple linear models and the consensus score across top methods perform better than other methods at predicting perturbed regulators.Availability and implementationdecoupleR’s open-source code is available in Bioconductor (https://www.bioconductor.org/packages/release/bioc/html/decoupleR.html) for R and in GitHub (https://github.com/saezlab/decoupler-py) for Python. The code to reproduce the results is in GitHub (https://github.com/saezlab/decoupleR_manuscript) and the data in Zenodo (https://zenodo.org/record/5645208).Supplementary informationSupplementary data are available at Bioinformatics Advances online.
The management of retrorectal tumours: tertiary centre retrospective study
Authors: Burke Joshua R. , Shetty Kunal , Thomas Owen , Kowal Mikolaj , Quyn Aaron , Sagar Peter 
Published: March 2022

Abstract

Aim
Tumours of the retrorectal space are uncommon, pathologically heterogeneous, and difficult to diagnose, with ongoing controversy over their surgical management. The aim of this study was to evaluate the surgical management of a consecutive series of patients who had undergone excision of primary retrorectal tumours (PRRTs) at a tertiary referral centre.

Method
Patients were identified from a prospectively maintained database between 1 March 2001 and 1 August 2021. Electronic patient records were reviewed for demographics, preoperative imaging, operative details, histology, and follow-up. A chi-squared test was used to assess the statistical significance of findings.

Results
A total of 144 patients were included in the study. Of these, 103 patients were female (71.5 per cent), 46 patients (31.9 per cent) presented incidentally, and 99 of the patients had tumours located below S3 (68.7 per cent). Overall, 76 patients underwent a transperineal approach (52.7 per cent) with the most common findings of a benign tailgut cyst occurring in 59 (40.9 per cent) of cases. Preoperative MRI predicted urovascular and pelvic sidewall involvement assessed intraoperatively with a sensitivity of 83.3 and 90 per cent and a specificity of 98.1 and 98 per cent respectively. Risk of malignancy in solid tumours was 31.4 versus 8.8 per cent in cystic tumours (relative risk 3.5, 95 per cent c.i. 1.6 to 7.6, P &lt; 0.001). Major complications (Clavien–Dindo grade III and above) occurred in eight patients (5.6 per cent) and all-cause long-term mortality was 4.8 per cent (seven patients).

Discussion
PRRTs can be safely excised with minimal complications in specialized centres by surgical teams with the relevant expertise. This study questions the conservative management of cystic tumours and given the risk of solid tumour malignancy, supports surgical management.