bluuebunny/crossref_metadata_2025_split huggingface dataset:
Distributed control for complex missions: Quasi‐linear parameter varying approach
Authors: Attallah Aly , Werner Herbert 
Published: May 2022

AbstractA distributed flocking control scheme is presented for a swarm of non‐holonomic vehicles modeled as linear parameter varying (LPV) systems. The vehicles are assumed to perform tasks that arise when exploring scalar fields on , which may represent, for example, concentration levels of a toxic substance in air or water. Here we consider in particular level surface tracking and level surface monitoring missions. It is assumed that agents can sense gradient and Hessian information of the scalar field at their current position. The control architecture of each vehicle is structured into two modules: a flocking filter which represents avirtual layerof the network, and local tracking controllers for vehicles on thephysical layer. The flocking filter receives data from neighboring vehicles and generates a reference signal. An LPV tracking controller for the vehicles, and a network flocking filter that stabilizes the whole network, are designed separately. Simulated mission scenarios with swarm of autonomous underwater vehicles demonstrate the practicality of the proposed approach.
Crystal Surface Engineering Induced Active Hexagonal Co2P‐V2O3 for Highly Stable Lithium–Sulfur Batteries
Authors: Zhou Wei , Ma Liang , Zhao Dengke , Li Jinliang , Chen Zhemin , Mai Wenjie , Wang Nan , Li Ligui 
Published: May 2022

AbstractPurposeful control of the highly active crystal planes is an effective strategy to improve the nanocrystalline catalytic activity. Therefore, Co2P nanocrystals with high exposure of (211) lattice plane loaded at 2D hexagonal V2O3 nanosheets (H‐Co2P‐V2O3) are designed via the control of morphology. After optimization, this H‐Co2P‐V2O3 boosts the redox kinetics of lithium polysulfides (LiPSs) in lithium–sulfur batteries (LSBs), which is due to the increase of the Co‐active sites by exposing more (211) lattice planes of Co2P, and the high adsorption and catalysis characteristic of H‐Co2P‐V2O3 for the conversion of LiPSs into LSBs. In the case of modification separator by H‐Co2P‐V2O3 composite, the battery achieves an outstanding reversibility of 876.9 mAh g−1 over 500 cycles at 1 C, a superior rate property of 611.5 mAh g−1 at 8 C, and a long‐term cycling performance with a low attenuation of 0.04% per cycle over 1000 cycles at 4 C for LSBs. Impressively, a remarkable areal capacity of 12.38 mAh cm−2 is retained under the high sulfur loading of 14.5 mg cm−2 after 100 cycles. It is believed that the crystal surface engineering provides guidance to further improve the electrochemical performance of the LSB field.
Hydrogen‐Bond Disrupting Electrolytes for Fast and Stable Proton Batteries
Authors: Su Zhen , Chen Junbo , Stansby Jennifer , Jia Chen , Zhao Tingwen , Tang Jiaqi , Fang Yu , Rawal Aditya , Ho Junming , Zhao Chuan 
Published: May 2022

AbstractRechargeable aqueous proton batteries are promising competitors for the next generation of energy storage systems with the fast diffusion kinetics and wide availability of protons. However, poor cycling stability is a big challenge for proton batteries due to the attachment of water molecules to the electrode surface in acid electrolytes. Here, a hydrogen‐bond disrupting electrolyte strategy to boost proton battery stability via simultaneously tuning the hydronium ion solvation sheath in the electrolyte and the electrode interface is reported. By mixing cryoprotectants such as glycerol with acids, hydrogen bonds involving water molecules are disrupted leading to a modified hydronium ion solvation sheaths and minimized water activity. Concomitantly, glycerol absorbs on the electrode surface and acts to protect the electrode surface from water. Fast and stable proton storage with high rate capability and long cycle life is thus achieved, even at temperatures as low as −50 °C. This electrolyte strategy may be universal and is likely to pave the way toward highly stable aqueous energy storage systems.
Bevacizumab‐Laden Nanofibers Simulating an Antiangiogenic Niche to Improve the Submuscular Stability of Stem Cell Engineered Cartilage
Authors: Zhu Xinsheng , Xu Yong , Xu Xiaoxiong , Zhu Junjie , Chen Linsong , Xu Yawen , Yang Yang , Song Nan 
Published: May 2022

AbstractBone marrow stem cells (BMSCs) engineered cartilage (BEC) is prone to endochondral ossification in a submuscular environment due to the process of vascular infiltration, which limits its application in repairing tracheal cartilage defects. Bevacizumab, an antitumor drug with pronounced antiangiogenic activity, is successfully laden into a poly(L‐lactide‐co‐caprolactone) system to prepare bevacizumab‐laden nanofiber (BevNF) characterized by 5% and 10% bevacizumab concentrations. The in vitro results reveal that a sustained release of bevacizumab can be realized from BevNF, exhibiting inhibitive cytotoxicity toward human umbilical vein endothelial cells whereas non‐cytotoxicity toward BMSCs‐induced chondrocytes. A model is also established by encapsulating BEC within BevNF, aiming to realize an antiangiogenic niche under conditions of sustained and localized release of bevacizumab to inhibit the process of vascular invasion, resulting in the eventual stabilization of the cartilaginous phenotype and promotion of the process of cartilage maturation in the submuscular environment. These results also confirm that the chondrogenesis stability of BEC increases with an increase in the bevacizumab concentration, and 10% BevNF is sufficient to protect BEC from vascularization. This demonstrates that the use of BevNF can potentially help develop an effective strategy for regulating the submuscular stability of BEC to repair the defects formed in tracheal cartilage.
In Situ Growth of Crystalline and Polymer‐Incorporated Amorphous ZIFs in Polybenzimidazole Achieving Hierarchical Nanostructures for Carbon Capture
Authors: Hu Leiqing , Bui Vinh T. , Pal Sankhajit , Guo Wenji , Subramanian Ashwanth , Kisslinger Kim , Fan Shouhong , Nam Chang‐Yong , Ding Yifu , Lin Haiqing 
Published: May 2022

AbstractMixed matrix materials (MMMs) hold great potential for membrane gas separations by merging nanofillers with unique nanostructures and polymers with excellent processability. In situ growth of the nanofillers is adapted to mitigate interfacial incompatibility to avoid the selectivity loss. Surprisingly, functional polymers have not been exploited to co‐grow the nanofillers for membrane applications. Herein, in situ synergistic growth of crystalline zeolite imidazole framework‐8 (ZIF‐8) in polybenzimidazole (PBI), creating highly porous structures with high gas permeability, is demonstrated. More importantly, PBI contains benzimidazole groups (similar to the precursor for ZIF‐8, i.e., 2‐methylimidazole) and induces the formation of amorphous ZIFs, enhancing interfacial compatibility and creating highly size‐discriminating bottlenecks. For instance, the formation of 15 mass% ZIF‐8 in PBI improves H2 permeability and H2/CO2 selectivity by ≈100% at 35 °C, breaking the permeability/selectivity tradeoff. This work unveils a new platform of MMMs comprising functional polymer‐incorporated amorphous ZIFs with hierarchical nanostructures for various applications.
High Sensitivity of Non‐Fullerene Organic Solar Cells Morphology and Performance to a Processing Additive
Authors: Alqahtani Obaid , Lv Jie , Xu Tongle , Murcia Victor , Ferron Thomas , McAfee Terry , Grabner Devin , Duan Tainan , Collins Brian A. 
Published: May 2022

AbstractAlthough solvent additives are used to optimize device performance in many novel non‐fullerene acceptor (NFA) organic solar cells (OSCs), the effect of processing additives on OSC structures and functionalities can be difficult to predict. Here, two polymer‐NFA OSCs with highly sensitive device performance and morphology to the most prevalent solvent additive chloronaphthalene (CN) are presented. Devices with 1% CN additive are found to nearly double device efficiencies to 10%. However, additive concentrations even slightly above optimum significantly hinder device performance due to formation of undesirable morphologies. A comprehensive analysis of device nanostructure shows that CN is critical to increasing crystallinity and optimizing phase separation up to the optimal concentration for suppressing charge recombination and maximizing performance. Here, domain purity and crystallinity are highly correlated with photocurrent and fill factors. However, this effect is in competition with uncontrolled crystallization of NFAs that occur at CN concentrations slightly above optimal. This study highlights how slight variations of solvent additives can impart detrimental effects to morphology and device performance of NFA OSCs. Therefore, successful scale‐up processing of NFA‐based OSCs will require extreme formulation control, a tuned NFA structure that resists runaway crystallization, or alternative methods such as additive‐free fabrication.
Nanocellulose‐assisted preparation of electromagnetic interference shielding materials with diversified microstructure
Authors: Zeng Zhihui , Qiao Jing , Zhang Runa , Liu Jiurong , Nyström Gustav 
Published: May 2022

AbstractSustainable and renewable nanocellulose attracts more and more attention in various fields due to its high strength‐to‐weight ratio, small diameter, large aspect ratio, and abundant functional groups. The excellent properties and structural characteristics enabled a great potential of nanocellulose for efficient interactions with functional nanomaterials such as carbon nanotube, graphene, transition metal carbides/nitrides (MXenes), and metal nanoparticles, which is beneficial for preparing high‐performance electromagnetic interference (EMI) shields. We review the advances in the nanocellulose‐assisted preparation of composite films and aerogels for EMI shielding application. The nanocellulose‐based composites are evaluated in terms of their EMI shielding performance and the shielding mechanisms, including conduction, polarization, and multiple reflections are summarized. In addition to the constituent structure and contents, we highlight the significance of the microstructure design in enhancing the EMI shielding performance of the nanocellulose‐based EMI shields. Finally, the current challenges and outlook for these fascinating nanocellulose‐based EMI shielding composites are discussed.
DevOps benefits: A systematic literature review
Authors: Faustino João , Adriano Daniel , Amaro Ricardo , Pereira Rubén , da Silva Miguel Mira 
Published: May 2022

AbstractAmong current IT work cultures, DevOps stands out as one of the most adopted worldwide. The focus of this culture is on bridging the gap between development and operations teams, enabling collaborative effort toward quickly producing software, without sacrificing its quality and support. DevOps is used to tackle a variety of issues; as such, there are differing benefits reported by authors when performing their analysis. For this research, we aim to reach consensus on the DevOps benefits reported in existing literature. To accomplish this objective, two systematic literature reviews. The first intends to find all benefits reported in the literature, while the second review will be used to map the benefits found in the first one with DevOps implementation case studies, providing empirical evidences of each benefit. To strengthen the results, the concept‐centric approach is used. During this research it was possible to observe that the most reported benefits are aligned with the DevOps premises of better collaboration between developers and operators, delivering software and products quicker. Based on DevOps implementation case studies, most reported benefits include a faster time to market as well as improvements in synergy and automation. Less reported benefits include a reduction in failed changes and security issues.
Pathogen reduction by ozone–biological activated carbon‐based advanced water reclamation for reuse
Authors: Teel Lydia , Pagilla Krishna , Sundaram Vijay , Li Lin , Guarin Tatiana , Haak Laura 
Published: May 2022

AbstractOzone–biological activated carbon (ozone‐BAC)‐based technologies are emerging as an appealing option for potable reuse systems; however, uncertainty remains regarding the reduction of waterborne pathogens. Common log reduction requirements have been modeled after California Department of Drinking Water's 12–10–10 log reduction value (LRV) for enteric virus, Cryptosporidium, and Giardia, respectively. The objective of this research was to investigate appropriate LRVs of pathogens that can be achieved in ozone‐BAC‐based treatment systems and to assess the applicability of employing drinking water pathogen guidelines for potable reuse applications. A pilot scale ozone‐BAC‐based treatment train was operated at two water reclamation facilities in Reno, Nevada, USA. Virus, Cryptosporidium, Giardia, and bacterial indicators were monitored across individual and combined treatment processes. Pathogen barriers investigated include conventional filtration, ozonation, and ultraviolet disinfection. Based on sampling and treatment validation strategies, the three pathogen barriers can provide minimum LRVs of 13–9–9.5 for virus, Giardia, and Cryptosporidium. Secondary biological treatment can provide additional pathogen LRVs with site‐specific sampling. The present study addresses regulatory uncertainties associated with ozone‐BAC pathogen reduction.Practitioner Points

Ozone–biological activated carbon‐based advanced treatment can meet pathogen LRV requirements with a minimum of three pathogen barriers.
Successfully applied drinking water pathogen reduction guidelines for potable reuse applications verified by operational criteria.
Low presence of pathogens requires surrogates and indicator analyses and variety of monitoring techniques to verify pathogen log reduction.
Mainstream partial denitrification‐anammox in sand and expanded clay deep‐bed polishing filters under practical loading rates and backwashing conditions
Authors: Fofana Rahil , Huynh Huu , Jones Kimberly , Delgado Vela Jeseth , Long Chenghua , Chandran Kartik , Bott Charles , Akyon Benay , Liu Wenjun , deBarbadillo Christine , De Clippeleir Haydee 
Published: May 2022

AbstractThis study focused on evaluating the feasibility of expanded clay and sand as media types for mainstream partial denitrification‐anammox (PdNA) in deep‐bed single‐media polishing filters under nitrogen and solids loading rates as well as backwash conditions similar to conventional denitrification filters. The surface roughness and iron content of the expanded clay were hypothesized to allow for enhanced anammox retention, nitrogen removal rates, and runtimes. However, under the tested loading rates and backwash conditions, no clear benefit of expanded clay was observed compared with conventional sand. This study showed the feasibility of PdNA in filters with both sand and expanded clay with PdN efficiencies of 76% and 77%, PdNA rates of 840 and 843 g N/m3/d and TIN removal rates of 960 and 964 g N/m3/d, respectively. Glycerol demands were 1.5–1.6 g COD added per g TIN removed, thus indicating potential carbon savings up to 75% compared with conventional denitrification. Overall, this study showed for the first time PdNA filters performing at nitrogen removal rates double that of previous PdNA studies under realistic conditions while providing insights into the media choice and backwashing conditions. Future research on expanded clay backwash conditions is needed to provide its full potential in PdNA filters.Practitioner Points

Hydraulic and TSS loading rates similar to conventional denitrification can be applied in PdNA filters.
Conventional sand can be used when retrofitting conventional denitrification filters into PdNA filters.
Carbon savings up to 75% can be achieved with glycerol when retrofitting conventional filters into PdNA filters
Occurrence patterns of wild turkeys altered by wild pigs
Authors: Walters Clay M. , Osborne Douglas C. 
Published: May 2022

AbstractEastern wild turkeys (Meleagris gallopavo silvestris) are an important game bird in the United States, particularly in the Southeast. The introduction of wild pigs (Sus scrofa) can negatively affect native wildlife, habitat quality, and ecosystem functions. To explore the potential effects that pig presence, through habitat degradation and interspecific competition, may have on wild turkeys, we evaluated changes in occupancy of co‐occurring wild pigs and wild turkeys.We deployed camera‐monitored bait stations on 3 wildlife management areas in Arkansas during January–April 2017–2019 and collected >680,000 images to determine turkey and wild pig occurrence. We evaluated presence/absence of turkeys and wild pigs in camera trap images using Timelapse2 image analyzer software® and then used program MARK to create 2‐species occupancy models and determine the effect of wild pig presence and various landscape covariates on the occupancy and detectability of wild turkeys. The occupancy rate of wild pigs was 50.4% (95% CI = 46.9%–54.0%) and included positive relationships with the percent cover of deciduous forest and the number of wildlife openings within 500 m. The occupancy rate of turkeys increased from 45.5% (95% CI = 39.3%–51.6%) when wild pigs were not present to 59.4% (95% CI = 45.2%–73.5%, 95%) when wild pigs were present, indicating a tendency of the 2 species to select for similar environmental conditions (Species Interaction Factor = 1.13). Detectability of turkeys decreased when wild pigs occupied a site at any point during the season, regardless of whether or not the wild pigs were detected during the same trapping occasion. The decrease in detectability suggests a possible short‐term displacement of turkeys by wild pigs. This displacement can have indirect effects through alteration of breeding behaviors and altered habitat use patterns, and these indirect effects represent an important topic for research moving forward.
Foraging and travel success of wild turkey poults in southern Illinois grasslands
Authors: Tebo Ryan G. , Bottom Christopher R. , Nielsen Clayton K. 
Published: May 2022

AbstractFew studies have assessed potential differences in foraging behavior between wild‐strain and commercial‐strain gallinaceous chicks often used to assess habitat quality. We conducted field trials during summer 2013 using wild‐strain (n = 54) and commercial‐strain (n = 64) wild turkey (Meleagris gallapavo) poults to assess foraging efficiency and mobility in burned and unburned grassland sections in southern Illinois. Foraging efficiency of turkey poults did not differ between burned or unburned fields, or between wild and commercial‐strain poults. All poults selected invertebrate orders Coleoptera, Hymenoptera, and Isopoda during all field trials, whereas poults avoided orders Araneae, Diptera, Hemiptera, Lepidoptera, and Orthoptera, and orders Collembola, Diplura, and Protura in class Entognatha. Overall, the lack of differences in behavior between poult strains should allow researchers to confidently use commercially‐raised chicks as an alternative to wild‐captured chicks in studies that assess forage quality and travel efficiency.
Trans* Vulnerability and Resistance in the Ballroom: The Case of Pose (Season 1)
Authors: Hidalgo-Ciudad Juan Carlos 
Published: May 2022

AbstractThe TV series Pose explores ballroom culture in 1980s New York bringing to the fore a variety of vulnerable subaltern identities who go through a process of total rejection and nullification in both homo and heteronormative communities due to their ethnicity, gender, class and sexuality, finding a site for self-assertion and empowerment in the micro-world constituted by houses and balls. In this chapter, the author analyses trans*-ness as an interstitial move that problematises any simplistic reading of essentialisation and naturalisation and explores the trans* condition as resisting more than reproducing heteronormative dichotomies of gender, sex and sexuality in a continuous process of what (Sullivan,.Stryker and Whittle (eds), The Transgender Studies Reader, Routledge, New York, 2006) has called “(un)becoming other(s)”. In doing so, the trans* subject reflects the contradictions inherent to any embodiment of a model figure, a failed attempt which the author, following (Halberstam,.The Queer Art of Failure, Duke University Press, Durham and London, 2011), reads as a generative nothingness which explodes in a volatile multiplicity that nullifies “normality”.
Two More Power Plants
Authors: Ibrahim Jimoh , Loch Christoph , Sengupta Kishore 
Published: May 2022

AbstractThe Zungeru dam and power plant had its share of problems (including protesting local communities affected by it) and suffered a three-year delay, but it looks to be completed in 2022. The case includes a characterization of “enabling conditions for project completion” as seen by a senior civil servant.The Delta State Oghareki was initiated with great promise but was then squarely brought down by corruption (the most glaring case in our sample), after a large initial payment disappeared through a contractor that allegedly was controlled by people close to the parliament. The project never progressed to substantive facilities, but no charges have been brought in Nigeria (while charges did indeed come to fruition in the UK, related to bribery of officials by UK-based component contractors). This case demonstrates how damaging corruption can become when it is not tracked and punished.
What We Know About the Management of Very Large Projects
Authors: Ibrahim Jimoh , Loch Christoph , Sengupta Kishore 
Published: May 2022

AbstractA lot of professional knowledge has been accumulated about the management of very large (government) projects. Very large projects are complex beasts, and one can get them wrong in a hundred different ways. So existing frameworks contain many success variables. This study is based on this knowledge—it is unlikely that in the Nigerian context, forces are at work which have never been observed anywhere else before. But not all the influence factors are equally important, and we do not know which ones are the most critical in the Nigerian context. This chapter develops a framework of success drivers reflecting previous work, which will then be empirically examined for the key factors among them that are causing failure in the Nigerian context.
Diversity und Diversity Management: Ein kritischer Überblick
Authors: Genkova Petia 
Published: May 2022

ZusammenfassungIm folgenden Kapitel werden die Themen Diversity und Diversity Management aus forschungs- und anwendungsbezogener Perspektive behandelt. Zu diesem Zweck wird als erstes die Relevanz von Diversity Management in zunehmend heterogenen Gesellschaften und Unternehmen beschrieben. Das Kapitel verdeutlicht dabei, dass Diversity als ganzheitliches Konzept wahrgenommen und implementiert werden muss, um die Potenziale von Vielfalt tatsächlich nutzbar zu machen und Diskriminierung zu verhindern. Um die Relevanz dieses Ansatzes zu verdeutlichen, werden Prädiktoren, Zusammenhänge und mögliche positive sowie negative Auswirkungen von Diversity im Unternehmen vorgestellt und diskutiert. Anhand aktueller Erkenntnisse aus der Forschung wird dargelegt, wie Diversity Management in Organisationen erfolgreich umgesetzt werden kann und warum die Forschung dazu insbesondere top-down Führung und Diversity Beliefs betrachtet. Darüber hinaus wird ein praxisorientiertes Modell vorgestellt, das dabei helfen kann, Bereiche mit Entwicklungsbedarf zu bestimmen und Maßnahmen in ihrer Wirksamkeit zu bewerten.