bluuebunny/crossref_metadata_2025 huggingface dataset:
A DNA demethylase reduces seed size by decreasing the DNA methylation of AT-rich transposable elements in soybean
Authors: Wang Wanpeng , Zhang Tianxu , Liu Chunyu , Liu Chunyan , Jiang Zhenfeng , Zhang Zhaohan , Ali Shahid , Li Zhuozheng , Wang Jiang , Sun Shanwen , Chen Qingshan , Zhang Qingzhu , Xie Linan
Published: May 2024

Understanding how to increase soybean yield is crucial for global food security. The genetic and epigenetic factors influencing seed size, a major crop yield determinant, are not fully understood. We explore the role of DNA demethylase GmDMEa in soybean seed size. Our research indicates that GmDMEa negatively correlates with soybean seed size. Using CRISPR-Cas9, we edited GmDMEa in the Dongnong soybean cultivar, known for small seeds. Modified plants had larger seeds and greater yields without altering plant architecture or seed nutrition. GmDMEa preferentially demethylates AT-rich transposable elements, thus activating genes and transcription factors associated with the abscisic acid pathway, which typically decreases seed size. Chromosomal substitution lines confirm that these modifications are inheritable, suggesting a stable epigenetic method to boost seed size in future breeding. Our findings provide insights into epigenetic seed size control and suggest a strategy for improving crop yields through the epigenetic regulation of crucial genes. This work implies that targeted epigenetic modification has practical agricultural applications, potentially enhancing food production without compromising crop quality.
Long term declines in the functional diversity of sharks in the coastal oceans of eastern Australia
Authors: Henderson Christopher J. , Gilby Ben L. , Turschwell Mischa P. , Goodridge Gaines Lucy A. , Mosman Jesse D. , Schlacher Thomas A. , Borland Hayden P. , Olds Andrew D.
Published: May 2024

Human impacts lead to widespread changes in the abundance, diversity and traits of shark assemblages, altering the functioning of coastal ecosystems. The functional consequences of shark declines are often poorly understood due to the absence of empirical data describing long-term change. We use data from the Queensland Shark Control Program in eastern Australia, which has deployed mesh nets and baited hooks across 80 beaches using standardised methodologies since 1962. We illustrate consistent declines in shark functional richness quantified using both ecological (e.g., feeding, habitat and movement) and morphological (e.g., size, morphology) traits, and this corresponds with declining ecological functioning. We demonstrate a community shift from targeted apex sharks to a greater functional richness of non-target species. Declines in apex shark functional richness and corresponding changes in non-target species may lead to an anthropogenically induced trophic cascade. We suggest that repairing diminished shark populations is crucial for the stability of coastal ecosystems.
Spatially resolved cell atlas of the teleost telencephalon and deep homology of the vertebrate forebrain
Authors: Hegarty Brianna E. , Gruenhagen George W. , Johnson Zachary V. , Baker Cristina M. , Streelman Jeffrey T.
Published: May 2024

The telencephalon has undergone remarkable diversification and expansion throughout vertebrate evolution, exhibiting striking variations in structural and functional complexity. Nevertheless, fundamental features are shared across vertebrate taxa, such as the presence of distinct regions including the pallium, subpallium, and olfactory structures. Teleost fishes have a uniquely “everted” telencephalon, which has confounded comparisons of their brain regions to other vertebrates. Here we combine spatial transcriptomics and single nucleus RNA-sequencing to generate a spatially-resolved transcriptional atlas of the Mchenga conophorus cichlid fish telencephalon. We then compare cell-types and anatomical regions in the cichlid telencephalon with those in amphibians, reptiles, birds, and mammals. We uncover striking transcriptional similarities between cell-types in the fish telencephalon and subpallial, hippocampal, and cortical cell-types in tetrapods, and find support for partial eversion of the teleost telencephalon. Ultimately, our work lends new insights into the organization and evolution of conserved cell-types and regions in the vertebrate forebrain.
Large anomalous Hall conductivity induced by spin chirality fluctuation in an ultraclean frustrated antiferromagnet PdCrO2
Authors: Jeon Hoseong , Seo Hyeongwoo , Seo Junho , Kim Yong Hyun , Choi Eun Sang , Jo Younjung , Lee Ho Nyung , Ok Jong Mok , Kim Jun Sung
Published: May 2024

Magnetic frustration, realized in the special geometrical arrangement of localized spins, often promotes topologically nontrivial spin textures in the real space and induces significantly large unconventional Hall responses. This spin Berry curvature effect in itinerant frustrated magnets mainly works with a static spin order, limiting the effective temperature range below the magnetic transition temperature and yielding the typical anomalous Hall conductivity below ~ 103 Ω−1cm−1. Here we show that an ultraclean triangular-lattice antiferromagnet PdCrO2 exhibits a large anomalous Hall conductivity up to ~ 106 Ω−1cm−1 in the paramagnetic state, which is maintained far above the Neel temperature (TN) up to ~ 4TN. The reported enhancement of anomalous Hall response above TN is attributed to the skew scattering of highly mobile Pd electrons to fluctuating but locally-correlated Cr spins with a finite spin chirality. Our findings point at an alternative route to realizing high-temperature giant anomalous Hall responses, exploiting magnetic frustration in the ultraclean regime.
3D skyrmion strings and their melting dynamics revealed via scalar-field electron tomography
Authors: Yu Xiuzhen , Nakanishi Nobuto , Chiew Yi-Ling , Liu Yizhou , Nakajima Kiyomi , Kanazawa Naoya , Karube Kosuke , Taguchi Yasujiro , Nagaosa Naoto , Tokura Yoshinori
Published: May 2024

Two-dimensional skyrmion, a topological spin texture, has been extensively investigated in non-centrosymmetric magnets. It is thermodynamically stable in bulk materials and can extend perpendicularly to the spin-rotating plane, forming the three-dimensional (3D) skyrmion string that occasionally terminates inside the bulk or at its surfaces, thereby producing spin (anti)hedgehogs. While magnetically manipulated skyrmion strings have been demonstrated thus far, an understanding of metastable skyrmion strings and their melting dynamics remain elusive. The challenge arises from the absence of a suitable 3D magnetic imaging technique that is capable of tracking their dynamics while varying the temperature. Here, we show a high-resolution 3D phase imaging to show the metastable skyrmions and their melting dynamics accompanied by the emergence of (anti)hedgehogs over a temperature range from 95 K to room temperature in helimagnets.
Multiple carbonate system parameters independently govern shell formation in a marine mussel
Authors: Ninokawa Aaron T. , Saley Alisha M. , Shalchi Roya , Gaylord Brian
Published: May 2024

Calcification is vital to marine organisms that produce calcium carbonate shells and skeletons. However, how calcification is impacted by ongoing environmental changes, including ocean acidification, remains incompletely understood due to complex relationships among the carbonate system variables hypothesized to drive calcification. Here, we experimentally decouple these drivers in an exploration of shell formation in adult marine mussels, Mytilus californianus. In contrast to models that focus on single parameters like calcium carbonate saturation state, our results implicate two independent factors, bicarbonate concentration and seawater pH, in governing calcification. While qualitatively similar to ideas embodied in the related substrate-inhibitor ratio (bicarbonate divided by hydrogen ion concentration), our data highlight that merging bicarbonate ion and hydrogen ion concentrations into a simple quotient obscures important features of calcification. Considering a dual-parameter framework improves mechanistic understanding of how calcifiers interact with complex and changing chemical conditions.
Deep imaging reveals dynamics and signaling in one-to-one pollen tube guidance
Authors: Mizuta Yoko , Sakakibara Daigo , Nagahara Shiori , Kaneshiro Ikuma , Nagae Takuya T , Kurihara Daisuke , Higashiyama Tetsuya
Published: May 2024

In the pistil of flowering plants, each ovule usually associates with a single pollen tube for fertilization. This one-to-one pollen tube guidance, which contributes to polyspermy blocking and efficient seed production, is largely different from animal chemotaxis of many sperms to one egg. However, the functional mechanisms underlying the directional cues and polytubey blocks in the depths of the pistil remain unknown. Here, we develop a two-photon live imaging method to directly observe pollen tube guidance in the pistil of Arabidopsis thaliana, clarifying signaling and cellular behaviors in the one-to-one guidance. Ovules are suggested to emit multiple signals for pollen tubes, including an integument-dependent directional signal that reaches the inner surface of the septum and adhesion signals for emerged pollen tubes on the septum. Not only FERONIA in the septum but ovular gametophytic FERONIA and LORELEI, as well as FERONIA- and LORELEI-independent repulsion signal, are involved in polytubey blocks on the ovular funiculus. However, these funicular blocks are not strictly maintained in the first 45 min, explaining previous reports of polyspermy in flowering plants.
Epsilon tubulin is an essential determinant of microtubule-based structures in male germ cells
Authors: Stathatos G Gemma , Merriner D Jo , O’Connor Anne E , Zenker Jennifer , Dunleavy Jessica EM , O’Bryan Moira K
Published: May 2024

Alpha, beta, and gamma tubulins are essential building blocks for all eukaryotic cells. The functions of the non-canonical tubulins, delta, epsilon, and zeta, however, remain poorly understood and their requirement in mammalian development untested. Herein we have used a spermatogenesis model to define epsilon tubulin (TUBE1) function in mice. We show that TUBE1 is essential for the function of multiple complex microtubule arrays, including the meiotic spindle, axoneme and manchette and in its absence, there is a dramatic loss of germ cells and male sterility. Moreover, we provide evidence for the interplay between TUBE1 and katanin-mediated microtubule severing, and for the sub-specialization of individual katanin paralogs in the regulation of specific microtubule arrays.
Lithium-ion battery functionality over broad operating conditions via local high concentration fluorinated ester electrolytes
Authors: Quilty Calvin D. , Marin Bernardez Edelmy J. , Nicoll Andrew , Hossain MD Jamil , Kingan Arun , Arnot David J. , Mohamed Hafsa A. , O'Connor Ciara L. , Tong Xiao , Jaye Cherno , Fischer Daniel A. , Wang Lei , Qi Yue , Takeuchi Esther S. , Marschilok Amy C. , Yan Shan , Bock David C. , Takeuchi Kenneth J.
Published: May 2024

Delivered capacities of non-flammable LHCE vs. flammable LiPF6 EC:DMC electrolyte at low temperature, high voltage charge, and fast charge.
A biphasic accelerated strand exchange amplification strategy for culture-independent and rapid detection of Salmonella enterica in food samples
Authors: Zhang Xiaojun , Wang Xiujuan , Shi Binghui , Li Junfeng , Fan Yaofang , Li Yong , Shi Chao , Ma Cuiping
Published: May 2024

Schematic diagram of the biphasic detection of S. enterica contaminated food samples.
Advances in 3D tissue models for neural engineering: self-assembledversusengineered tissue models
Authors: Wan Shuqian , Aregueta Robles Ulises , Poole-Warren Laura , Esrafilzadeh Dorna
Published: May 2024

Self-assembled models offer advantages in studying neural development, but standardisation, control, and scalability are limited. Engineering hydrogel-based models to mimic native tissue structures shows promise in overcoming these challenges.
Achieving stable lithium metal anodes via the synergy of electrostatic shielding and the high Li+ flux inorganic interphase
Authors: Yu Jiangtao , Ma Xinyu , Zou Xiuyang , Hu Yin , Yang Mingchen , Yang Jinhua , Sun Shipeng , Yan Feng
Published: May 2024

A cationic polymer was developed as protective layer for Li anodes. The multiple cationic sites in molecule provided enhanced electrostatic shielding, whereas NO3− anions generated robust and high Li+ flux inorganic SEI.
Weakly solvating aqueous-based electrolyte facilitated by a soft co-solvent for extreme temperature operations of zinc-ion batteries
Authors: Zhang Ruizhi , Pang Wei Kong , Vongsvivut Jitraporn (Pimm) , Yuwono Jodie A. , Li Guanjie , Lyu Yanqiu , Fan Yameng , Zhao Yunlong , Zhang Shilin , Mao Jianfeng , Cai Qiong , Liu Sailin , Guo Zaiping
Published: May 2024

The weakly solvating electrolyte achieves optimized interface chemistry and good temperature adaptability for aqueous zinc ion batteries.
2D-rGO-supported FePc bifunctional nanozyme with enhanced catalytic activity for thiosulfate detection and rhodamine B degradation
Authors: Zhou Feijin , Cui Wenying , Liu Chenggang , Yao Cheng , Song Chan
Published: May 2024

FePc supported on 2D rGO has the enhanced catalytic activity. The prepared FePc@rGO nanocomposites not only can catalyze the oxidation of colorimetric substrates, but also can degrade RhB with the help of PMS.
Highly coordinated Fe–N5 sites effectively promoted peroxymonosulfate activation for degradation of 4-chlorophenol
Authors: Panjwani Manoj Kumar , Gao Feiyu , He Ting , Gao Pan , Xiao Feng , Yang Shaoxia
Published: May 2024

Fe–N5 SAC efficiently activates peroxymonosulfate, resulting in remarkable 4-CP degradation efficiency with turnover frequency of 59.8 L (min g)−1, and holds potential application in environmental remediation.
Targeted release of live probiotics from alginate-based nanofibers in a simulated gastrointestinal tract
Authors: Diep Emily , Schiffman Jessica D.
Published: May 2024

We developed probiotic bacteria-loaded, alginate-based nanofibers via electrospinning for the targeted delivery of probiotics into the intestines.
Harnessing nanoreactors: gelatin nanogels for human therapeutic protein delivery
Authors: Kim Jeehye , Copeland Caroline E. , Kwon Yong-Chan
Published: May 2024

A tunable nanogel system with high-capacity protein swelling and rapid release triggered by internal/external modulators presents a versatile platform for enhanced protein delivery.
Efficient photo-oxidation of bisphenol a and tetracycline through sulfur-doped g-C3N4/CD heterojunctions
Authors: Sura Ankoor , Singh Amanvir , Singh Arjun , Narwal Sudha , Malik Priya , Goyat Manjeet Singh , Mishra Yogendra K. , Nain Sonia , Duhan Surender
Published: May 2024

The synergistic effects of sulfur-doped g-C3N4 and carbon dots in nanocomposite photocatalysts were explored for the degradation of contaminants of emerging concern, particularly phenolic pollutants such as bisphenol A and tetracycline.
Effects of alumina priming on the electrical properties of ZnO nanostructures derived from vapor-phase infiltration into self-assembled block copolymer thin films
Authors: Lee Won-Il , Subramanian Ashwanth , Kisslinger Kim , Tiwale Nikhil , Nam Chang-Yong
Published: May 2024

Alumina priming, typically used for vapor-phase infiltration (VPI) of weakly reactive precursors, increases both ZnO VPI fidelity and its electrical conductivity, as demonstrated in the ZnO nanostructures derived from self-assembled block copolymers.
First-principles investigations of the controllable electronic properties and contact types of type II MoTe2/MoS2 van der Waals heterostructures
Authors: Nguyen Son T. , Hieu Nguyen V. , Le-Quoc Huy , Nguyen-Ba Kien , Nguyen Chuong V. , Phuc Huynh V. , Nguyen Cuong Q.
Published: May 2024

Two-dimensional (2D) van der Waals (vdW) heterostructures are considered as promising candidates for realizing multifunctional applications, including photodetectors, field effect transistors and solar cells.
Controlling the electronic and magnetic properties of the GeAs monolayer by generating Ge vacancies and doping with transition-metal atoms
Authors: Hoat D. M. , Ponce-Pérez R. , Ha Chu Viet , Guerrero-Sanchez J.
Published: May 2024

Effects of vacancies and doping with transition metals on the electronic and magnetic properties of the GeAs monolayer are systematically investigated using first-principles calculations.
MXene-based composites in smart wound healing and dressings
Authors: Zarepour Atefeh , Rafati Nesa , Khosravi Arezoo , Rabiee Navid , Iravani Siavash , Zarrabi Ali
Published: May 2024

Recent advancements in MXene-based wound dressings are discussed, focusing on their contributions to tissue regeneration, infection control, anti-inflammation and photothermal effects, and targeted therapeutic delivery.
Rational design of polymer-based mRNA delivery systems for cancer treatment
Authors: Wan Qianyu , Sun Yuji , Sun Xuanrong , Zhou Zhuxian
Published: May 2024

This review introduces the basic design principles and recent advances in polymeric mRNA therapeutics, highlighting strategies to realize cancer-selective, organ-targeted, and tissue-penetrating mRNA delivery.
Effect of pH on the incorporation of acrylic acid units in the core of polymer nanoparticles prepared by PISA and on their morphology
Authors: Debrie Clément , Coudert Noémie , Guigner Jean-Michel , Coumes Fanny , Guibert Clément , Harrisson Simon , Stoffelbach François , Colombani Olivier , Rieger Jutta
Published: May 2024

The molar fraction and ionization of acrylic acid (αAA) in the monomer feed affect the chemical composition, the composition profile and the particle morphology in PISA.
Dynamic kinetic resolution of atropisomeric N-arylindoles via chiral N-triflyl phosphoramide catalyzed asymmetric reductive amination
Authors: Shao You-Dong , Han Dan-Dan , Jiang Hong-Xin , Zhou Xin-Yu , Wang Wei-Kang , Zhang Jia-Xi , Liu Ya-Fei , Cheng Dao-Juan
Published: May 2024

The first organocatalyzed asymmetric reductive amination towards axially chiral N-arylindoles proceeding through n → π* interaction-induced dynamic kinetic resolution is reported.
Selective synthesis of pyridazine-fused chromones and 3-pyridazinyl chromones through intermolecular chromone annulation of o-hydroxyphenylenaminones with aryldiazonium salts
Authors: Song Siyu , Zhang Zhilai , Peng Menglin , Xia Xueshan , Dong Shuwei , Wang Yongchao , Yu Fuchao
Published: May 2024

A chemodivergent and skeleton-controllable annulation reactions of readily available o-HPEs and aryldiazonium salts was described for the synthesis of highly functionalized pyridazine-fused chromones with high antiviral activity and higher safety.
The potential of thermally expanded graphite in oil sorption applications
Authors: Elbidi Moammar , Mohd Salleh Mohamad Amran , Rashid Suraya Abdul , Mukhtar Gunam Resul Mohamed Faiz
Published: May 2024

Porous carbon materials, especially expanded graphite, are widely utilized in wastewater treatment due to their micropores and exceptional adsorption capacity.
Tribological behaviors of an attapulgite–graphene nanocomposite as an additive for mineral lubricating oil
Authors: Wang Dong , Zeng Xianfeng , Nan Feng
Published: May 2024

In this work, an attapulgite–graphene nanocomposite was prepared and its tribological properties as an additive for 200SN mineral lubricating oil were investigated.
Axial heteroatom (P, S and Cl)-decorated Fe single-atom catalyst for the oxygen reduction reaction: a DFT study
Authors: Xue Qian , Qi Xuede , Li Kun , Zeng Yi , Xu Feng , Zhang Kai , Qi Xueqiang , Li Li , Cabot Andreu
Published: May 2024

Overpotential and ΔG(*OH) have a volcanic relationship, the catalytic process is hindered by too strong or too weak interaction between catalyst and adsorbate. ORR is constrained in strong binding region by the reduction of *OH to H2O.
AC conductivity study of mechanochemically synthesized solid electrolytes of Li6−aMa/nnPS5Cl (M = Ca, Mg, Ba, Zn, Al, Y)
Authors: Toan Tran Viet , Anh Luu Tuan , Minh Nguyet Nguyen Thi , Tu Tran Anh , Huy Phuc Nguyen Huu
Published: May 2024

Argyrodite-type solid electrolytes of Li6PS5Cl doped with multivalent cations (Mg2+, Ba2+, Zn2+, Al3+, Y3+) were prepared via a mechanochemical synthesis method.
A sulfonate ligand-defected Zr-based metal–organic framework for the enhanced selective removal of anionic dyes
Authors: Le Ha V. , Vo Nhi T. , Phan Hoan T. , Dao Thu M. , Nguyen Bao G. , Nguyen Tung T. , Ho Phuoc H. , Nguyen Khoa D.
Published: May 2024

A novel and highly crystalline sulfonate-defected MOF-808 was synthesized via a one-pot solvothermal method. The material showed a high selectivity toward anionic species in a binary-component solution comprising both anionic and cationic dyes.
Microfluidic synthesis of PLGA nanoparticles enabled by an ultrasonic microreactor
Authors: Udepurkar Aniket Pradip , Mampaey Laura , Clasen Christian , Sebastián Cabeza Victor , Kuhn Simon
Published: May 2024

Ultrasonic microreactor for synthesising poly(lactic-co-glycolic) acid (PLGA) nanoparticles through the emulsion-solvent evaporation technique.
Water slowing down drives the occurrence of the low temperature dynamical transition in microgels
Authors: Tavagnacco Letizia , Zanatta Marco , Buratti Elena , Bertoldo Monica , Chiessi Ester , Appel Markus , Natali Francesca , Orecchini Andrea , Zaccarelli Emanuela
Published: May 2024

The protein-like dynamical transition in microgels occurs at roughly the same temperature where water dynamics chages its dynamics from diffusive to activated.
A transparent and robust ionogel prepared via phase separation for sensitive strain sensing
Authors: Xie Jinliang , Li Xiaoqian , Liu Jiayu , Su Fangfang , Gao Ruiqi , Zhang Changming , Liang Jiahe , Ji Gang , Yao Dongdong , Zheng Yaping
Published: May 2024

Improving the mechanical properties of ionogels is crucial for their widespread practical application.
High-performing fiber electrodes based on a gold-shelled silver nanowire framework for bioelectronics
Authors: Zhang Kailin , Tang Chengqiang , Yu Sihui , Guan Hang , Sun Xiao , Cao Mingjie , Zhang Songlin , Sun Xuemei , Peng Huisheng
Published: May 2024

An all-metal fiber electrode was prepared based on a metal nanowire hybrid strategy and exhibited high flexibility, high electrical conductivity, and satisfactory biocompatibility.
Fluorescent polymer nanoparticles containing perylene diimides for application in luminescent solar concentrators
Authors: Pervin Rehana , Gholizadeh Elham M. , Ghiggino Kenneth P. , Wong Wallace W. H.
Published: May 2024

Fluorescent polymer nanoparticles containing covalently linked energy donor and emitter dye molecules were synthesized. Their photophysical properties and application in luminescent solar concentrator devices were investigated.
Improvement in non‐linear electrical conductivity of silicone rubber by incorporating zinc oxide fillers and grafting small polar molecules
Authors: Chi Qingguo , Zhang Huiyang , Meng Zhaotong , Zhang Changhai , Zhang Yongquan , Zhang Yue , Yin Chao , Zhang Tiandong
Published: May 2024

Silicone rubber (SiR) is commonly used in reinforced insulation parts for high‐voltage direct current (HVDC) cable accessories due to its excellent insulation, elasticity, and high‐temperature resistance. HVDC cable accessories always suffer from the local electric field concentration due to the electrical conductivity mismatch between reinforced insulation and main insulation, which can ultimately lead to electric breakdown. The non‐linear conductive composites based on SiR have the ability to adaptively adjust the distribution of the electric field in cable accessories. This is expected to solve the problem of localised electric field concentration. The zinc oxide (ZnO) and glycidyl methacrylate (GMA) are used as fillers and grafted modifier respectively to improve the non‐linear electrical conductivity of ZnO/SiR‐GMA composites. The results indicate that grafting GMA can increase electrical conductivity of SiR, while doping ZnO filler enables SiR to have non‐linear conductivity characteristics. The combination of doping and grafting modification of the composites achieves excellent non‐linear conductive properties at lower ZnO filler content. Additionally, the mechanical properties of the modified composites are enhanced. The simulation results indicate that ZnO/SiR‐GMA is the most effective material for homogenising the electric field when used as reinforced insulation for cable intermediate joints.
Predictive power control strategy without grid voltage sensors of the Vienna rectifier
Authors: Yang Tao , Chen Lan , Miao Yiru
Published: May 2024

This paper proposes a predictive power control strategy for the three‐phase, six‐switch Vienna rectifier without grid voltage sensors to reduce the hardware cost and complexity of a high‐power PWM rectifier system. Firstly, an algorithm for calculating the AC‐side voltage in the αβ coordinate system is derived according to the operating principle of the Vienna rectifier, and a voltage observer is constructed by combining a second‐order low‐pass filter to estimate the grid voltage. Secondly, a soft start method is designed to solve the problem that the rectifier is prone to inrush current when it is started. Furthermore, the control method of grid voltage sensorless is combined with predictive power control with good dynamic characteristics and simple parameter settings to form the control strategy proposed in this paper. Finally, simulation analysis and experimental verification are carried out on the proposed control strategy. Simulation and experimental results show that the grid voltage estimation has high accuracy, a good surge current suppression effect, unit power factor operation, low input current harmonic content, and good dynamic and steady‐state performance. Therefore, the correctness and effectiveness of the strategy proposed in this paper are verified.
Model‐based adaptive control of modular DAB converter for EV chargers
Authors: Cuoghi Stefania , Pittala Lohith Kumar , Mandrioli Riccardo , Cirimele Vincenzo , Ricco Mattia , Grandi Gabriele
Published: May 2024

This paper presents the discrete‐time modelling and control of modular input‐parallel–output‐parallel (IPOP) dual‐active‐bridge (DAB) converters for electric vehicle (EV) charging. The proposed adaptive control system ensures adequate current‐sharing among parallel modules while minimizing DAB current stress by adopting dual phase‐shift modulation. Driven by the growing need for fast EV charging options, the paper highlights the importance of achieving top‐notch control performance, especially with varying load conditions. Specifically, it introduces a discrete‐time model for adjusting controller parameters adaptively, which simplifies the typically cumbersome manual tuning process associated with these systems. The proposed PI formulae are derived to satisfy specifications on the frequency domain as phase margin and the gain crossover frequency of the open loop gain transfer function, ensuring stability and robustness in operation. Moreover, the implementation of these formulae in discrete microcontrollers facilitates seamless PI autotuning for precise current, voltage, or power control. Notably, the proposed control strategy effectively mitigates current overshot issues commonly encountered during module engagement and shedding operations in modular EV chargers. To validate its efficacy, the proposed controller is evaluated through extensive testing and comparisons within the PLECS environment, particularly focusing on a two‐module IPOP‐DAB converter scenario, and including comparisons with classical offline model‐based pole placement methodology. Furthermore, real‐time hardware‐in‐the‐loop experiments are conducted to confirm the feasibility and performance of the proposed controller under realistic EV charging profiles.
A computational efficient approach for distributionally robust unit commitment with enhanced disjointed layered ambiguity set
Authors: Lian Yicheng , Li Yuanzheng , Zhao Yong , Li Yang , Liu Zhiwei , Wang Jianxiao
Published: May 2024

To achieve the sustainable development of the society, renewable energy dominated power systems are gradually formed. However, the uncertainty of renewable power poses challenges for power system operations, such as balancing the load and generation in day‐ahead unit commitment problems. To address this issue, an enhanced disjointed layered ambiguity set is proposed in this paper to effectively capture the uncertainty of renewable generation forecast errors. On this basis, a two‐stage distributionally robust unit commitment optimization problem is formulated, which is computational challenge. To this end, a novel reformation approach and a worst‐case support set identification method are proposed to derive the optimal solution in a computationally efficient way. Simulation results demonstrate that the proposed ambiguity set brings lower operation costs of unit commitment while maintaining similar reliability compared to existing methods. In detail, the proposed ambiguity set achieves a reduction in operating costs of approximately 10.01%. The proposed novel reformation approach and solution method are also shown to have higher computation efficiency than the existing Benders decomposition method, resulting in a reduction in computation time to less than 3.78% of the original duration.
Conflicts over water and energy resources in Central Asia and their impact on women's rights
Authors: Seitalieva Gulmiza Askarbekovna
Published: May 2024

Central Asia has sufficient water and energy resources. Kyrgyzstan and Tajikistan have large reserves of fresh water. Kazakhstan, Uzbekistan, and Turkmenistan have oil and gas. However, conflicts constantly arise between all Central Asian countries over water and energy resources. The purpose of the article is to analyze the key problems in the distribution of water resources and conflicts between Central Asian countries and their negative impact on women’s rights. This study used analysis of research conducted by international organizations, by the National Statistical Committee of Kyrgyzstan, and content analysis of Internet resources. The solution to conflicts over water and energy resources between Central Asian countries lies in the balanced and coordinated use of the existing high potential and reasonable mutual exchange of resources. Negotiated conflict resolution is important for women. The active participation of women in increasing efficiency in the water and energy sector will create the prerequisites for improving the economies of the republics, developing “green” energy, and maintaining the environmental balance. It would help to achieve sustainable development goals in the Central Asian region.
Development of marketing research in the management of consumer decisions in the field of water supply to national economic facilities
Authors: Savina Svetlana , Tulemysheva Bermet , Atakulova Zamira , Isagalieva Ainura , Ashirbaeva Aida
Published: May 2024

This study reveals the essence of marketing research and presents a complete proposal for a marketing research program, including an analysis of possible alternatives for various market participants related to the consumption of water resources. The intensive introduction of marketing tools in various spheres of economic life determines the theoretical and practical interest in the algorithmization of planning activities in the field of marketing, the provision of services to the population and companies. Conducting market research allows the company to understand what customers want, the criteria by which they choose management companies and services for the provision of water consumption and sanitation services, the likelihood (or impossibility) of raising or decreasing prices. Consequently, companies can dynamically track any changes in customer needs, which allows them to retain customers and attract new ones. In turn, this provides the company with high competitiveness, market stability and favorable further economic growth. The main goal of this article was the development of marketing research in the management of the formation of consumer decisions. In the process of writing this article, a literature review, data synthesis and analysis, and systematization of the findings were conducted. The results of the study can be applied in the management of the formation of consumer decisions.
Modernization of the infrastructure of a river station of the north-south transport corridor using the simulation method
Authors: Logachev Maxim , Zelenkov Mikhail
Published: May 2024

The paper presents the main fragments of the simulation model of a river port on the water section of the international transport corridor passing through the territory of the Russian Federation. The necessity of modernization and improvement of the infrastructure has been substantiated, the factors influencing the carrying capacity of the water corridor have been identified. A study of the river station in the city of Cheboksary in Republic of Chuvashia (Russia) was carried out and its main objects were presented. The rules for the interaction of the objects being the basis of the simulation model, have been established. The resulting model allows generating scenarios for predicting changes in the characteristics of a river station, ship schedules, assessing the quality of the implementation of processes and the level of managerial decision-making.
Management model in the conditions of digitalization of business environment in the regional ecosystem
Authors: Mandritsa Igor , Mandritsa Olga , Drannikova Elena
Published: May 2024

It is recognized that the role of business environment management in the regional ecosystem is paramount to ensure the balanced development of all ecosystem elements. This is made possible based on the prerequisites for digital transformation that have been created. There is a need for a management model that will bring the spontaneity of the region’s entrepreneurial environment into line, strengthen its vector momentum in increasing the activity of the ecosphere of the territory, and allow choosing the best solutions. The study aims to formation of a model for establishing interaction between the state and business in the framework of the Russian model of digitalization based on the study and development of scientific theories and ideas, best practices, research of the state and trends of entrepreneurial activity of the region and its ecosphere. Methods: fundamental theories of entrepreneurship and approaches to modern theoretical research on business environment management, knowledge within the framework of business environment management theory, concepts of regional ecosystem theory, digitalization models, and tools of meso-ecological models of the business environment. The model of establishing the interaction between the state and business in the region proposed is based on the study of theories, methods and analysis of the role and performance trends of the business environment. An adapted management model in the conditions of digitalization of the business environment is presented concerning the regional ecosystem based on the materials of the Strategy of Digital Transformation of Stavropol Territory. In the recommended model on a new technological basis decomposition of factors, agents of the mesoecological model of the business environment and factors of their assessment, the interaction of the business environment and its communication activity between all subjects are given.
Application of the simulation method in the development of the concept for the Silk Road museum
Authors: Nikishina Irina
Published: May 2024

The paper substantiates the development of a simulation model in the design of the Silk Road Museum. A brief description of the current world museums and exhibitions on the territory of the Russian Federation dedicated to its legacy has been made. A description of the methods used to establish the system of key objects and their corresponding qualitative and quantitative characteristics has been presented. Such information is the input parameters and rules of the simulation model, enabling to implement scenarios for the behavior of all participants in various processes in order to create regulations for the organization and management of the museum.
A typical digital model of the construction process
Authors: Kabanov Vadim
Published: May 2024

Based on the practical experience of developing digital models of technological processes for the production of construction and installation works, a hypothesis about the similarity of digital models of construction processes is formulated. To prove the existence of this hypothesis, studies have been carried out, the purpose of which is to typify digital models of construction processes. When constructing a typical digital model of the construction process, the conceptual apparatus is clarified, mathematical models are proposed, which are most often found in the practice of modeling. The practical application of a typical digital model of the construction process greatly simplifies the processes of software development (computer codes), can be used to automate procedures that are used in the preparation of working organizational and technological documentation. In addition, standard digital models can be used to find such solutions for construction production that reduce the duration of construction and installation work with a significant reduction in cost.
Formation of technological maps for construction processes in 3D
Authors: Sinenko Sergei , Le Phuoc Hieu
Published: May 2024

This article studies methods, techniques and means of visualization for the formation of technological maps for construction processes in 3D. The article describes factors influencing the modeling as well as their classification. A 3D model of a multi-storey residential building is made for the design of technological maps. In this paper, authors analyze requirements and limitations that must be considered when graphical modeling of formation of technological maps for construction processes in 3D. The formation of technological maps for construction processes in 3D is a promising direction of modern design in the practice of construction production.
Analyzing the Water, Energy, and Food Security Nexus Index in Morocco
Authors: El Majdoubi Ghizlane , El Ayadi Houda
Published: May 2024

The WEF Nexus Index’s quantitative perspective provides a way to evaluate the trade-offs that need to be taken into account for sustainable development. Morocco’s natural resources are being impacted by climate change, and the demand for energy, water, and food are increasing the pressure on these resources. Academics are becoming more interested in measuring the synergies and trade-offs between this resource. The purpose of this paper is to offer an interpretation of how the Morocco WEF Nexus Index has changed over the course of 5 years, as determined by open databases. The index’s value decreased and Morocco’s ranking deteriorated during this period, as evidenced by the results. The results are useful for evaluating Morocco’s progress in managing integrated resources and aiding in decision-making and policy development. On an interactive website, A group of visual representations linked to WEF Nexus Index has been put together.
Characterization of sludge from the Fez wastewater treatment plant
Authors: Touzani Abdelaziz , El Hammoudani Yahya , Haboubi Khadija , Benaabidate Lahcen , Achoukhi Iliass , Moudou Mohamed , El Boudammoussi Mustapha , Faiz Hatim , Dimane Fouad
Published: May 2024

The Fès wastewater treatment plant is of the activated sludge type. It has been in service since 2014, and receives 155,400 cubic meters per day of domestic wastewater from numerous urban and rural communities: Fès, Ras El Ma, Oulad Tayeb and Ain Chkef. On the one hand, this WWTP generates clean, purified water which is discharged into the receiving environment without any harm to the environment, and on the other, it produces huge quantities of residual sludge, i.e. 5,100 t/year. The aim of this study is to characterize the sludge from the Fez wastewater treatment plant, following sludge treatability tests by monitoring the various analytical parameters. To be able to choose the right technique for the type of sludge to be treated. In our case, for sludge from the Fez wastewater treatment plant, physico-chemical characteristics were carried out for COD, BOD5, TSS, total nitrogen and phosphorus, showing the sludge’s richness in nutrients. The characterization of the sludge from the Fez wastewater treatment plant showed the potential of this product to be valorized.
Application of the water quality index (IQEs) to assess the quality of groudwater in the Ghiss-Nekkour aquifer, Al-Hoceima, Northern Morocco
Authors: Moudou Mohamed , El Hammoudani Yahya , Dimane Fouad , Haboubi Khadija , Achoukhi Iliass , El Boudammoussi Mustapha , Faiz Hatim , Touzani Abdelaziz
Published: May 2024

The determination of water quality with simple, accurate and easily understood expressions by managers and decision-makers has become a crucial situation in the environmental context, in order to help stakeholders make appropriate decisions. The aim of this study is to assess the quality of groundwater in the Ghiss-Nekkour aquifer, located in northeastern Morocco, using the Water Quality Index (WQI). The method is based on the analysis of 11 different physico-chemical parameters (pH, EC, Ca2+, Na+, Mg2+, K+, HCO3-, SO2-4, Cl-, NO3-, NO-2) of this groundwater. By applying this WQI, the water was classified into four categories (Water: good quality, poor, very poor, unsuitable for consumption). The study showed that the water from most wells is unsuitable for domestic consumption and requires treatment.
Green Insulation Revolution: A Bibliometric Analysis of Cannabis-Based Composite Materials in Building Construction
Authors: ElAbbadi Badreddine , Haboubi Chaimae , El Abdouni Aouatif , El Hammoudani Yahya , Dimane Fouad , Haboubi Khadija
Published: May 2024

Powdered activated carbon was used in different studies for evaluation in micropollutants removal. In this study, powdered activated carbon was tested to evaluate its removal efficiency for about 46 micropollutants. A total of 33 compounds were found in raw wastewater. The PAC was found to be efficient towards total suspended solids elimination. Powdered activated carbon reached high removal percentage for heavy metals (90%), while the majority of the other compounds it varied between 60 and 80%. The impact of advanced treatments combination with conventional treatments could lead to high removals.
Cost-centric innovations to address Water-Agriculture nexus challenges in Egypt: Research Status Analysis
Authors: Brouziyne Youssef , Eldeeb Eman , Abdoun Roaya , Attar Oumaima , Moumane Ikram , El Bergui Omnia , Benaly Mohamed Amine , El Bakali Imane , Abou Ali Asma , Ez-Zaouy Yassine , Abouabdillah Aziz , Harbouze Rachid , Haida Souad , Benaabidate Lahcen
Published: May 2024

High costs associated with technology adoption can be a barrier against the improvement of water use in agriculture. Therefore, interventions must be not only technically feasible but also financially affordable and accessible to farmers. To understand the current situation of research in lowcost (and cost-effective) water solutions for effective management of agricultural water challenges in Egypt. A total of 19 peer-reviewed papers were obtained from systematic research on various databases, the employed keywords are: “Egypt” AND “irrigation” AND “low cost” OR “low-cost” OR “cost-effective” OR “cost-effective”. Based on the analysis of the selected studies, many low-cost technologies and techniques are applied in the Egyptian Delta on-farm levels, such as using low-cost soil moisture sensors attached to a smart monitoring unit operated by Solar Photo Voltaic Cells (SPVC), wireless sensor network in cultivating the potato crop, flexible on-field irrigation, cut-off irrigation, and Pressurized Irrigation Systems. The proposed solutions can help improve water use efficiency, increase crop yields, reduce the cost of irrigation, improve the quality of irrigation water, and promote sustainable agricultural practices. The economic analyses and feasibility studies presented in these papers provide valuable insights for policymakers and stakeholders in making informed decisions about water use and agricultural practices.
Assessing the reliability of the hardware and software complex of fault-tolerant control systems
Authors: Kovalev Igor , Kovalev Dmitry , Kovalev Roman , Podoplelova Valeria , Losev Vasiliy , Borovinsky Dmitry , Gofman Pavel , Gadoeva Mavlyuda
Published: May 2024

Reliability assessment of hardware and software complexes is relevant due to the expansion of automation and intellectualization for sustainable development of mining and transport systems, energy complexes and mechanical engineering. This paper presents an approach to the reliability assessment of control systems based on functional block diagrams of software and control flows. When assessing the reliability of a control system, software is considered taking into account the close relationship with hardware. The article considers control systems that assume the performance of the required function periodically and repeatedly within the transportation and technological cycle of the system. This is typical for automation of mining and transportation systems, as well as energy complexes. It is taken into account that the main function within the transportation-technological cycle does not require a complex algorithm in contrast to the operating system. Thus, the proposed reliability assessment model allows to take into account the interaction between hardware and software of automated control systems, including the variant of their faulttolerant execution.
Substantiation the safety open pit wall parameters in the conditions of a reduced protective zone near State critical infrastructure
Authors: Cherniaiev Oleksii , Anisimov Oleg , Dreshpak Oleksandr , Borodina Nataliya
Published: May 2024

The research is focused on topical issues of determining the safe parameters of pit edges in the conditions of a reduced protective zone near a critical infrastructure facility. Considering the extraction of soft rocks that are prone to landslides and deformations, the permissible safe distances from the upper edge of the pit on the surface to the industrial infrastructure facility are determined and established. Based on the physical and mechanical properties of the rocks, the parameters of geomechanical models of the pit edges were developed and substantiated to study their stability and stress state in the conditions of the Eastern section of the Chabanivske clay deposit. A brief description of the deposit under study and its geological structure is given. Computer modeling was carried out to determine the safety factor, and changes in the stress state of the massif near the pit edge were determined by the finite element method. Taking into account the mining technology were determined the safe parameters of the pit edges. Safe distances from high-pressure pipelines of state importance are substantiated. A rational pit edge angle of 28 – 31 degrees is recommended, and the appropriate safety distance for the rocks of the Chabanivske deposit in the western section should be at least 95 m.