bluuebunny/crossref_metadata_2025 huggingface dataset:
Ultra-high endurance silicon photonic memory using vanadium dioxide
Authors: Seoane Juan José , Parra Jorge , Navarro-Arenas Juan , Recaman María , Schouteden Koen , Locquet Jean Pierre , Sanchis Pablo
Published: September 2024

Silicon photonics arises as a viable solution to address the stringent resource demands of emergent technologies, such as neural networks. Within this framework, photonic memories are fundamental building blocks of photonic integrated circuits that have not yet found a standardized solution due to several trade-offs among different metrics such as energy consumption, speed, footprint, or fabrication complexity, to name a few. In particular, a photonic memory exhibiting ultra-high endurance performance (>106 cycles) has been elusive to date. Here, we report an ultra-high endurance silicon photonic volatile memory using vanadium dioxide (VO2) exhibiting a record cyclability of up to 107 cycles without degradation. Moreover, our memory features an ultra-compact footprint below 5 µm with the potential for nanosecond and picojoule programming performance. Our silicon photonic memory could find application in emerging photonic applications demanding a high number of memory updates, such as photonic neural networks with in situ training.
Molecularly imprinted 2D photonic crystal hydrogel sensor for sodium dichloroisocyanurate
Authors: Xin Jianwei , Meng Zihui , Qiao Yu , Zhang Yuqi
Published: September 2024

Molecularly imprinted two-dimensional photonic crystal hydrogel sensor was prepared. The sensor can specifically recognize SDIC and directly generate readable optical signals to report recognition events without any processing of the analyte.
Hydrolysis of ammonia borane for green hydrogen production over a Pd/C3N4 nanocatalyst synthesized by electron beam irradiation
Authors: Shingole Manish , Banerjee Seemita , Ruz Priyanka , Kumar Asheesh , Sharma Pratibha , Sudarsan V.
Published: September 2024

Room temperature hydrolysis of ammonia borane in presence of electron beam irradiated Pd-C3N4 catalyst.
Assessment of occurrence, source appointment, and ecological risks of pharmaceuticals and personal care products in the water–sediment interface of Qiantang River in the Hangzhou region
Authors: Wan Yang , Wang Ziming , Xu Kaiping , Wang Wei , Yao Pengcheng , You Aiju
Published: September 2024

TCS exhibited the highest concentration across different phases and seasons in QTR, and TCS posed high risks in surface water and low risks in sediment across all sampling sites.
Screening of oxalate-degrading probiotics and preventive effect of Lactiplantibacillus plantarum AR1089 on kidney stones
Authors: Xu Mingyue , Qin Yugang , Xia Yongjun , Wang Guangqiang , Xiong Zhiqiang , Song Xin , Ai Lianzhong
Published: September 2024

We screened probiotics capable of degrading oxalate in vitro and applied six strains of L. plantarum screened in HOD-fed rats. L. plantarum AR1089 was able to alleviate renal injury and reduce calcium oxalate crystallization in HOD-fed rats.
Dietary influences on urinary tract infections: unraveling the gut microbiota connection
Authors: Du Yifan , Sui Xiuyuan , Bai Yang , Shi Zhiyuan , Liu Bin , Zheng Zeyuan , Zhang Zhengying , Zhao Yue , Wang Jiqing , Zhang Qian , Zhu Yuanhang , Liu Qing , Wang Mingshan , Sun Huimin , Shao Chen
Published: September 2024

This study employs Mendelian randomization to investigate the causal relationships between dietary factors, gut microbiota, and urinary tract infections (UTIs).
Development of a food frequency questionnaire for the estimation of dietary (poly)phenol intake
Authors: Li Yong , Xu Yifan , Le Sayec Melanie , Kamarunzaman Nur Najiah Zaidani , Wu Haonan , Hu Jiaying , Li Shan , Gibson Rachel , Rodriguez-Mateos Ana
Published: September 2024

Development of a novel Food Frequency Questionnaire (FFQ) to capture dietary (poly)phenol intake. The new FFQ showed fair to strong validity against 7-day diet diaries and plasma and urinary poly)phenol metabolites, suggesting it is a promising tool for assessing (poly)phenol intake in the UK.
Multifunctional NaEu(WO4)2: defect-tuned red emission and acetone sensing at room temperature
Authors: Sahoo Kumar Riddhiman , Das Tanushri , Pal Mrinal , Karim Mohammad Rezaul , Seikh Asiful H. , Ghosh Chandan Kumar
Published: September 2024

Defects of NaEu(WO4)2 were controlled by varying Na3cit during hydrothermal synthesis. The least defective material shows the highest red emission, whereas the most defective material exhibits acetone sensing at room temperature.
Ultramicroporous crosslinked polyxanthene-poly(biphenyl piperidinium)-based anion exchange membranes for water electrolyzers operating under highly alkaline conditions
Authors: Zheng Zejun , Xue Boxin , Yao Jin , He Qingyi , Wang Zhen , Yan Jingling
Published: September 2024

The ultramicroporous crosslinked polyxanthene-poly(biphenyl piperidinium)-based anion exchange membrane water electrolyzer demonstrated exceptional electrolysis performance under highly alkaline conditions.
Thermochromic hydrogel-based energy efficient smart windows: fabrication, mechanisms, and advancements
Authors: Xu Gang , Lu Yucan , Zhou Xinguantong , Moloto Nosipho , Liu Jiacheng , Kure-Chu Song-Zhu , Hihara Takehiko , Zhang Wei , Sun ZhengMing
Published: September 2024

This review provides a comprehensive summary of recent advancements in hydrogel-based thermochromic smart windows, focusing on fabrication, chromic mechanisms, and improvements in responsiveness, stability, and energy-saving performance.
Optically induced trion formation and its control in a MoS2/graphene van der Waals heterostructure
Authors: Ghosh Dastidar Madhura , Basu Nilanjan , Kao I-Hsuan , Katoch Jyoti , Nayak Pramoda K. , Singh Simranjeet , Bhallamudi Vidya Praveen
Published: September 2024

Monolayer 2D transition metal dichalcogenides are sensitive to charge transfer leading to modified optoelectronic properties.
Controlled synthesis and characterization of porous silicon nanoparticles for dynamic nuclear polarization
Authors: von Witte Gevin , Himmler Aaron , Hyppönen Viivi , Jäntti Jiri , Albannay Mohammed M. , Moilanen Jani O. , Ernst Matthias , Lehto Vesa-Pekka , Riikonen Joakim , Kozerke Sebastian , Kettunen Mikko I. , Tamarov Konstantin
Published: September 2024

Investigating the dynamic nuclear polarization mechanism in controllably synthesized porous Si nanoparticles, we measure the longest relaxation time to date.
Design of multi-responsive and actuating microgels toward on-demand drug release
Authors: Agnihotri Priyanshi , Dheer Divya , Sangwan Anvi , Chandran Vysakh C. , Mavlankar Nimisha A. , Hooda Gunjan , Patra Debabrata , Pal Asish
Published: September 2024

Colloidal microgels exhibit multi-stimuli-responsive behaviour and photoresponsive reversible actuation manifested in fluid flow patterning for the stimuli-responsive on-demand release of ciprofloxacin.
Design of “green” plasmonic nanocomposites with multi-band blue emission for ultrafast laser hyperthermia
Authors: Ryabchikov Yury V.
Published: September 2024

Plasmonic-fluorescent IV group semiconductor (Si, SiC, Ge) nanocomposites exhibit strong multi-band blue emission, accompanied with a hyperthermia modality. Laser ablation approaches control their performance and size-dependent chemical composition.
Customizing STEM organogels using PET-RAFT polymerization
Authors: Bowman Zaya , Baker Jared G. , Hughes Madeleine J. , Nguyen Jessica D. , Garcia Mathew , Tamrat Nahome , Worch Joshua C. , Figg C. Adrian
Published: September 2024

PET-RAFT polymerization was used to modify STEM organogels, while degradable linkers enabled the characterization of the resulting block copolymers.
Sulfur, phosphorus and iron codoped nickel oxide as an efficient catalyst for the oxygen evolution reaction
Authors: Hu Zhanqiang , Zhi Songsong , Chen Chen , Chang Jiuli , Wu Dapeng , Jiang Kai , Gao Zhiyong
Published: September 2024

The oxygen evolution reaction (OER) is the efficiency limiting half-reaction in water electrolysis for hydrogen production, which necessitates the use of an efficient and cost-effective catalyst.
Phytic acid-modified NiFe-PBA stacked by π–π force for reinforcement electrocatalytic water oxidation
Authors: Ye Zheng , Han Chun , Yuan Yuan , Chen Gong , Fu Yuanzun , Zhao Yunhe
Published: September 2024

We synthesized NiFe-PBA@Ni(OH)2 hierarchical heterostructure catalysts. Due to the chelation of PA and π–π stacking force, the overall water splitting of 10 mA cm−2 requires only 1.55 V low cell voltage.
Synergism between metal single-atom sites and S-vacant two-dimensional nanosheets for efficient hydrogen evolution uncovered by density functional theory and machine learning
Authors: Li Xinyi , Jiao Dongxu , Zhao Jingxiang , Zhao Xiao
Published: September 2024

H* is generated on Pd single atoms and then migrates to neighboring S sites on which H2 is produced, representing catalytic synergism via hydrogen spillover, which enables Pd1/Sv-MnPS3 to be active and durable for the HER.
Recent advances in carboxylate-based indium(iii)–organic frameworks
Authors: Song Yong-Jie , Zuo Yi-Hao , Li Zi-Feng , Li Gang
Published: September 2024

A comprehensive review of the preparation strategies, structures and applications of In-MOFs in the last eight years is presented. Moreover, future development trends are highlighted.
Dinuclear platinum(ii) complexes emitting through TADF: new ligand design to minimise aggregation and the S1–T1 energy gap
Authors: Pander Piotr , Dikova Yana M. , Puttock Emma V. , Williams J. A. Gareth
Published: September 2024

New ligand design provides reduction in ΔEST, suppression of aggregation, and a ∼4-fold increase in OLED EQE to 10%.
Catalyst-free C–H methylation of heteroarenes enabled by electron donor–acceptor complex photoactivation
Authors: Wang Jiayang , Shao Baoer , Ge Haixia , Xue Huiyu , Ding Xiangyuan , Li Yuqi , Sheng Peiyao
Published: September 2024

A visible-light-induced direct C–H methylation of heterocycles (including quinoxalinones, pyrazinones, quinolinones and coumarins) with methylamines via EDA complex photoactivation was developed.
Asymmetric synthesis of (aza)flavanones by the evolution of CarOx ligands
Authors: Yang Juan , Kong Wenlong , Chang Mingxin , Lai Jixing , Li Shengkun
Published: September 2024

Amino-pyridine-oxazoline (NHPyOx) is conceived as an unprecedented model via the core-emulating optimization of CarOx ligands.
Theoretical insights into Pd-catalyzed dual γ-1,1-C(sp3)–H activation of aliphatic carboxylic acids: mechanistic pathways, substituent influence on product selectivity, diastereoselectivity, and additive effects
Authors: Liu Jiaoyang , Huang Li-juan , Sun Zeang , Li Juan
Published: September 2024

DFT calculations were employed to explore the detailed reaction mechanism and the origins of the experimentally observed product, regio-, and diastereoselectivities in the Pd-catalyzed dual-γ-1,1-C(sp3)–H activation of aliphatic carboxylic acids.
Crystal structure modification of nano-hydroxyapatite using organic modifiers and hydrothermal technique
Authors: Kawsar Md. , Sahadat Hossain Md. , Tabassum Sumaya , Islam Dipa , Bahadur Newaz Mohammed , Ahmed Samina
Published: September 2024

Hydrothermal technique and organic modifiers are effective tools for the modification of the crystal structure of nano-crystallite hydroxyapatite for fruitful applications.
Magnesium-enhanced porcine particles using hydrothermal technique improve the osteogenic differentiation of cells
Authors: Lin Kai-Yi , Wu Yi-Fan , Aung Lwin Moe , Teng Nai-Chia , Sun Ying-Sui , Salamanca Eisner , Chang Wei-Jen
Published: September 2024

Guided bone regeneration (GBR) uses bone grafts and barrier membranes to block soft tissue invasion to eventually create a new bone.
Electrodeposition of Cu2NiSnS4 absorber layer on FTO substrate for solar cell applications
Authors: Ait Layachi Omar , Hrir Hala , Boudouma Abderrazzak , Atourki Lahoucine , Azmi Sara , Fariat Yousra , Nini Meryem , Moujib Asmaa , Khoumri El Mati
Published: September 2024

Potentiostatic and in situ electrochemical impedance spectroscopy (EIS) were used to investigate the nucleation and growth mechanisms of electrodeposited Cu2NiSnS4 (CNTS) thin films from aqueous solution at various applied potentials.
Supramolecular architecture of theophylline polymorphs, monohydrate and co-crystals with iodine: study from the energetic viewpoint
Authors: Konovalova Irina S. , Shishkina Svitlana V. , Wyshusek Maik , Patzer Michael , Reiss Guido J.
Published: September 2024

The supramolecular features in five polymorphs and two co-crystals of theophylline were studied combining experimental and theoretical methods.
Cobalt–zinc carbides embedded in N-doped porous carbon nanospheres as polysulfide mediators for efficient lithium–sulfur batteries
Authors: Tan Xiangyu , Du Jiajun , Wu Haitao , Ma Xuyu , Zhou Chunbo , Zhou Fangrong , Fan Caijin , Xu Xueqin , Hou Shaocong , Cai Xin
Published: September 2024

Developing high-efficiency interlayer catalysts is a promising tactic for improving the cycling performance of rechargeable lithium–sulfur (Li–S) batteries.
Harnessing the synergistic potential of TiO2–CuSe composites for enhanced photocatalytic and antibacterial activities
Authors: Kiran Asma , Riaz Ayesha , Ali Zahid , Maryam Rabia , Ahmad Furqan , Hussain Rafaqat , Siddiqui Nasir Ali , Hussain Afzal , Zulfiqar Sonia , Cochran Eric W.
Published: September 2024

This study demonstrates that visible light-activated TiO2–CuSe composites are effective for removing toxic industrial dyes from wastewater and controlling bacterial infections.
Synthesis of Pt–MoS2 with enhanced photothermal and peroxidase-like properties and its antibacterial application
Authors: Li Liangyu , Zhang Yueqin , Liu Yumeng , Wu Yaojuan , Wang Xiao , Cao Lidong , Feng Xia
Published: September 2024

Despite tremendous efforts, bacterial infection and contamination remain a major clinical challenge to modern humans.
Cationic lignin as an efficient and sustainable homogenous catalyst for aqueous Knoevenagel condensation reactions
Authors: Soliman Ahmed I. A. , Bacchus Ameena , Zare Rozita , Sutradhar Shrikanta , Fatehi Pedram
Published: September 2024

A water-soluble, biodegradable, and sustainable catalyst derived from lignin through cationization was utilized for catalyzing the Knoevenagel condensation delivering excellent yields (>96%).
Cu-doped ZnO/Ag/CuO heterostructure: superior photocatalysis and charge transfer
Authors: Gebretsadik Abbay , Kefale Bontu , Sori Chaluma , Tsegaye Dereje , Ananda Murthy H. C. , Abebe Buzuayehu
Published: September 2024

The doped porous heterostructure material was synthesised using the combustion approach. It has better photocatalysis potential than the separate constituents.
Enhanced properties of TEMPO-oxidized bacterial cellulose films via eco-friendly non-pressurized hot water vapor treatment for sustainable and smart food packaging
Authors: Rahmadiawan Dieter , Abral Hairul , Azka Muhammad Adlan , Sapuan S. M. , Admi Ratna Isnanita , Shi Shih-Chen , Zainul Rahadian , Azril  , Zikri Ahmad , Mahardika Melbi
Published: September 2024

Non-pressurized hot water vapor treatment significantly enhances the properties of TEMPO-oxidized bacterial cellulose films. The treatment leads to increased crystallinity, reduced porosity, and improved mechanical properties.
Does “zero-strain” lithiated spinel serve as a strain retardant and an irreversible phase transition regulator for layered oxide cathodes?
Authors: Wu Zixin , Zheng Qizheng , Gao Guiyang , Yin Jianhua , Chen Leiyu , Tang Yonglin , Yan Yawen , Huang Huan , Qin Yaru , Kuai Xiaoxiao , Qiao Yu , Sun Shi-Gang
Published: September 2024

The illustration of the design concept for LCO using a heterostructure strategy shows how a zero-strain spinel component can act as a strain retardant, while unexpected deviations occur due to the formation of Co3O4 and slow Li-ion transport.
Helically chiral multiresonant thermally activated delayed fluorescent emitters and their use in hyperfluorescent organic light-emitting diodes
Authors: Wang Jingxiang , Chen Dongyang , Moreno-Naranjo Juan Manuel , Zinna Francesco , Frédéric Lucas , Cordes David B. , McKay Aidan P. , Fuchter Matthew J. , Zhang Xiaohong , Zysman-Colman Eli
Published: September 2024

Helically chiral MR-TADF compounds tBuPh-BN and DPA-tBuPh-BN show narrowband circularly polarized luminescence that translates into high-performance hyperfluorescent organic light-emitting diodes.
A carbon-based bifunctional heterogeneous enzyme: toward sustainable pollution control
Authors: Sun Yuting , Guo Ming , Hu Shengnan , Jia Yankun , Zhu Wenkai , Yamauchi Yusuke , Wang Chaohai
Published: September 2024

A carbon-based bifunctional heterogeneous enzyme was prepared. The carrier structure, immobilized enzyme structure, enzymatic properties, stability performance and DEHP removal were also investigated.
A structurally conserved helix enables leader-independent tyramine splicing of proteins
Authors: Richter Daniel , Courvoisier-Clément Alicia , Vagstad Anna Lisa , Magyari Sarolt , Piel Jörn
Published: September 2024

Fusion of an activating helix to tyramine spliceases enables high-efficiency protein splicing to introduce β-amino acid residues.
Catechol/o-benzoquinone exchange at gold(iii)
Authors: León Félix , García-Rodeja Yago , Mallet-Ladeira Sonia , Miqueu Karinne , Szalóki György , Bourissou Didier
Published: September 2024

P^C-cyclometalated and P^P-chelated gold(iii) catecholate complexes readily undergo catechol exchange upon reaction with o-benzoquinones. The reaction is driven by electronic effects and proceeds via a bis-semiquinone Au(iii) intermediate.
Charge-assisted hydrogen bonding in a bicyclic amide cage: an effective approach to anion recognition and catalysis in water
Authors: Xu Chengkai , Tran Quy Gia , Liu Dexin , Zhai Canjia , Wojtas Lukasz , Liu Wenqi
Published: September 2024

A hydrogen bonding cage effectively recognizes anions in water and catalyzes the oxidation of oxalate.
Synthesis of chiral α-amino acids via Pd(ii)-catalyzed enantioselective C–H arylation of α-aminoisobutyric acid
Authors: Zhang Zi-Yu , Zhang Tao , Ouyang Yuxin , Lu Peng , Qiao Jennifer X. , Yu Jin-Quan
Published: September 2024

Non-natural chiral α,α-disubstituted α-amino acids (α,α-AAs) constitute an attractive α-aminoisobutyric acid (Aib) replacement for improving bioavailability of linear peptides as therapeutics due to the helical structures of the formed peptides.
Boosted photoredox capability of visible light-active P-doped C3N4 with efficient harvesting of electron–hole pairs
Authors: Gaonkar Asmita Dileep , Paniya Shraddha , Kancharlapalli Srinivasu , Vankayala Kiran
Published: September 2024

Band gap tunable and dual functional P-doped C3N4 for simultaneous production of H2 and benzaldehyde.
Using soapnut extract as a natural surfactant in green chemistry education: a laboratory experiment aligning with UN SDG 12 for general chemistry courses
Authors: Wang Zi , McLenahan Carter , Abraham Liza
Published: September 2024

Green chemistry education has gained significant momentum, with its emphasis on sustainable practices and the 12 principles of green chemistry.
Conformal active learning-aided screening of ligand-protected Cu-nanoclusters for CO2 reduction reactions
Authors: Roy Diptendu , Das Amitabha , Pathak Biswarup
Published: September 2024

In this study, we propose a conformal active learning (CAL) method to screen ligand-protected atomically precise Cu-nanoclusters for the CO2 reduction reaction.
Design of a unidirectional water-transport skin-derived wearable material through engineering a natural pore-size gradient for personal wet–thermal management
Authors: Gao Lu , Bao Yan , Lei Peng , Yu Sike , Zhu Xiaofeng , Liu Chao , Zhang Wenbo , Ma Jianzhong
Published: September 2024

A novel unidirectional water-transport skin-derived wearable material (UWT-Skin) is skillfully engineered based on a natural pore-size gradient, which demonstrates low wet adhesion, enhanced skin-drying, along with no excessive cooling effect.
A grafted flame-retardant gel polymer electrolyte stabilizing lithium metal for high-safety lithium metal batteries
Authors: Chen Shaoshan , Wang Yong , Li Zhongxiu , Feng Yiyu , Feng Wei
Published: September 2024

A multifunctional grafted flame-retardant gel polymer electrolyte (C-GPE) was prepared by a chemical grafting additive strategy to realize a flame retardant and stabilize lithium metal.
Atomic layer deposition of Pd nanoparticles and single atoms on self-supported carbon monolithic catalysts synergistically boosts the hydrogen evolution reaction
Authors: Zhang Bin , Song Xulong , Wang Zhiheng , Xu Binbin , Ye Wenkai , Zhang Lilong , Lin Han , Ji Tuo , Lu Xiaohua , Zhu Jiahua
Published: September 2024

Pd nanoparticles and Pd single atoms were anchored on carbonized wood. Pd NPs facilitated the decomposition of water while the Pd SAs promoted the adsorption of H.
Dual network structures of PDMS-based composite foam via anchoring liquid metal nanoparticles for improved thermal conductivity and electromagnetic interference shielding performances
Authors: Zhang Ying , Yang Song , Liu Yilin , Gu Ting , Liu Fei
Published: September 2024

Despite their promising application prospects in electromagnetic interference (EMI) shielding, a significant challenge remains in endowing flexible porous polymer-based conductive composites with exceptional thermal management capabilities.
Rational design of chloride ion transport channels in an open borate framework
Authors: Meng Yu , Nunotani Naoyoshi , Shitara Kazuki , Matsushita Yoshitaka , Imanaka Nobuhito , Yamaura Kazunari , Tsujimoto Yoshihiro
Published: September 2024

La-doped Ca2B5O9Cl exhibits one-dimensional chloride-ion transport defined by the dimensionality of the borate framework. Theoretical calculations indicate an unusual interstitialcy mechanism involving complex association between Cl and La atoms.
Deep eutectic solvent-based eutectogels consisting of ZnCl2 and lignin for quasi-solid-state supercapacitors
Authors: Bai Yunhua , Zhang Xiong-Fei , Wu Yufang , Liu Hu , Yao Jianfeng
Published: September 2024

Eutectogels have attracted attention for use in flexible electronics and energy storage because of their high conductivity and good mechanical properties.
A monetite/amorphous silica complex for long-term dentine hypersensitivity treatment through the acid stability and mineralization promoting effect of silica
Authors: Wang Yifan , Chen Shangsi , Tan Shenglong
Published: September 2024

Due to the acid stability and mineralization activity provided by silica, the monetite/ silica complex can effectively seal the dentin tubules under cyclic de-/remineralization conditions that mimic oral envioument, enabling long-term treatment of dentin hypersensitivity.
Synergistic in situ growth of a MOF on the surface of Ti3C2Tx MXene nanosheets with different tannic acid (TA) ratios for the photocatalytic degradation of pollutants
Authors: Yang Huanggen , Zhang Pei , Zheng Qi , Hayat Asif , Abd-Rabboh Hisham S. M. , Raza Saleem , Li Duofu , Sui Yan
Published: September 2024

The integration of a two-dimensional (2D) transition metal carbide (MXene) with metal–organic frameworks (MOFs) presents a promising avenue for addressing the limitations of MXene materials in various applications.
Single- and two-photon excited photoluminescence of 2D perovskite thin films with different organic spacer cations
Authors: Luo Tai , Li Junzi , Cui Yanyan , Jin Hao , He Tingchao
Published: September 2024

The length of the organic amine chains of 2D perovskites can significantly affect their low temperature excitonic and two-photon excited luminescent properties.
Melt-preparation of organic–inorganic Mn-based halide transparent ceramic scintillators for high-resolution X-ray imaging
Authors: Zhang Zhi-Zhong , He Zi-Lin , Peng Qing-Peng , Chen Jing-Hua , Lan Bang , Kuang Dai-Bin
Published: September 2024

A large size TBP2MnBr4 transparent ceramic is prepared by the melt processing method, which shows a high transmittance of >80% in the wavelength range of 350 nm to 800 nm, for realizing a high-resolution (16 lp mm−1) X-ray imaging.
Boosting ethylene yield via a synergistic 2D/0D nanostructured VCu layered double hydroxide/TiO2 catalyst in electrochemical CO2 reduction
Authors: Lavate Sneha S. , Srivastava Rohit
Published: September 2024

A VCu LDH/TiO2 nanocomposite showed high catalytic efficiency in CO2 electrochemical reduction, achieving superior faradaic efficiency for ethylene production, highlighting potential for scalable CO2-to-energy conversion processes.
E‐Gear Functionality Based on Mechanical Relays in Permanent Magnet Synchronous Machines
Authors: Verkroost Lynn , Demeyer Mauro , Soltani Gohari Homayoun , Lecoutere Johan , Sergeant Peter , Vansompel Hendrik
Published: September 2024

Permanent magnet synchronous machines (PMSMs) are still the first choice for use in electric vehicles, due to their unparalleled efficiency and power density. However, they suffer from an inherently limited speed range. As field weakening or the addition of a mechanical gearbox deteriorates the efficiency of the drive, it is suggested in this paper to equip the drive with reconfiguration switches, giving rise to a so‐called e‐gear. The switches—which are implemented by means of mechanical relays—allow to change the winding connection of the electric machine from a series to a parallel connection and hence to double its efficient speed range. Simulations and experimental results on a 4‐kW axial‐flux PMSM confirm the feasibility of the concept and prove that the reconfiguration can be conducted in less than 35 ms.
Website-based Implementation of PCM Tegalrejo services
Authors: Asroni  , Damarjati Cahya , Prasetyo Eko , Setyawan Haris , Budiman A Arif
Published: September 2024

In accordance with Bylaws (ART) Article 6, the Head of the Tegalrejo City Muhammadiyah Branch (PCM) Yogyakarta fosters, empowers, coordinates, manages, and organises charity business. PCM has ten Muhammadiyah Branch Leaders (PRM), namely: Bangirejo, Bluyahrejo, Karangwaru Lor, Petinggen, Jatimulyo, Kricak Kidul, Bangunrejo, Sidomulyo, Tompeyan, and Tegal, while for Aisyiyah Branch Leaders (PRA), there are 11 branches, namely: Karangwaru Lor, Blunyahrejo, Bangirejo, Jatimulyo, Kricak Kidul, Bangunrejo, Sidomulyo, Tompeyan, Tegalrejo, and Sudagarn. PCM Tegalrejo Yogyakarta is led by the Aisyiyah branch. Lokam Wiratama 0102 leads the Muhammadiyah Youth Troop Preparedness Command. PCM Tegalrejo, Yogyakarta City, has a Muhammadiyah Charity Foundation, which includes 2 elementary schools, 1 Islamic boarding school, 22 mosques and prayer rooms, LazisMu, and BTM Charity High School Tegalrejo Mulyo Santoso, SMA Muhammadiyah 1 Yogyakarta, under the management of the Yogyakarta Muhammadiyah Regional Leadership (PWM). PCM faces a variety of challenges related to slow, inaccurate, and incomplete reporting. To monitor immovable and movable assets, Amal Usaha Muhammadiyah (AUM) collects non-integrated asset data. PCM Tegalrejo must resolve several problems in stages. This solution should involve building an information system using advanced technology to collect PRM, PRA, Ortom, and AUM assets, online news uploads to share PCM activities, and LAZIZMU donation and allocation data. The Simcarata Management Information System’s development results are beneficial for PCM Tegalrejo Yogyakarta.
A Cross-Sectional Study about the Prevalence of Color Vision Deficiency among School Children in Benghazi
Authors: Alarifi Sarah Husayn Salih , Gebril Mariam Mohamed B.
Published: September 2024

Background Color vision deficiency (CVD) is a common disorder caused by damage to retinal photoreceptors and cones. The disorder makes a person less able to perceive color variations.

Aims The objective of the study was to assess the prevalence of CVD among the school children in Benghazi, Libya.

Methods This cross-sectional study was performed in the Department of Ophthalmology, Benghazi University, Benghazi, Libya, during the period from December 2023 to March 2024. The study included 1,022 students aged 6 to 18 years to assess the prevalence of CVD. Visual acuity assessment was performed in a place with good daylight illumination using the standard Snellen Tumbling E chart at a distance of 6 m. Color vision evaluation was performed in the schools using Ishihara color plates (24 plate–edition). The quantitative variables were presented as mean ± standard deviation, and the qualitative variables were presented as frequencies and percentages. The Student's t-test was used for comparing means, whereas the chi-square test was applied for comparing the frequencies. A p-value of < 0.05 was considered statistically significant.

Results CVD was present in 15 cases (1.5%). There were 13 males (2.6%) and 2 females (0.38%) with a statistically significant difference regarding gender. Among the 13 males with CVD, 7 students (53.8%) had deuteranomaly, 2 students (15.4%) had deuteranopia, 1 student (7.7%) had protanomaly, and 3 students (23.1%) had color blindness. The two females with CVD both had deuteranomaly.

Conclusion Early detection of CVD is vital to making informed decisions about a student's future career. With early detection, parents and teachers can adjust their educational strategies to ensure the best learning outcomes for the student.
Bayesian approaches to assigning the source of an odour detected by an electronic nose
Authors: Hibbert D. Brynn
Published: September 2024

After a brief review of electronic nose technology, the use of an Australian electronic nose to identify an unknown odour out of a set of known odours is described. Multivariate supervised learning is accomplished by applying Bayes’ theorem to data from metal oxide semiconductor sensors responding to each of a number of target odours. An odour from an unknown source is then assigned a probability of membership of each of the training sets by applying either a Naïve Bayes algorithm to the deemed independent data from each sensor, or to a multinormal distribution of the data. A flat prior (equal probabilities of each outcome) is usually adopted, but for particular situations where one odour is known to predominate, then suitably weighted priors can be used. A source ‘none of the above’, which has a small likelihood covering the space of the possible sensor responses, is included for completeness. This also avoids the assignment to a source that has an extremely small probability but which is greater than that of any other source. Examples are given of a single source (detecting diabetes from a patient’s breath), and three sources of unpleasant odours in a meat processing plant.
Physico-chemical and Biological Studies of Some Metal Complexes with Fluorinated Chloramphenicol Derivative
Authors: El-Kholany Ahmed S. , Shehata Nourhan S. , Kamel Hesham M.
Published: September 2024

Due to the prevalence of FF, its complexes with (CoII, NiII, and CuII) were prepared, characterized, and the effect of these metal ions on the biological effectiveness of FF was studied. Elemental analysis; IR and 1H-NMR were used to determine the structures and mode of bonding, TGA, and DSC techniques were used to make thermal analysis for the prepared complexes. TGA was used to study the mechanisms of the thermal decomposition for florfenicol complexes. The prepared complexes are thermally stable and started to decompose after 200οC. Broido’s method was used to determine the activation energy for the prepared compounds, while thermal transitions and kinetic studies were carried out by differential scanning calorimetry technique (DSC). The antimicrobial activity of the complexes of florfenicol with different concentrations (0.005, 0.01, 0.02 μg/mL) was examined by the agar prolixity technique against common human pathogenic Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative). Comparatively, Nickel and Copper complexes showed a higher zone of inhibition against the tested pathogens. The antibiotic complexes were more active than the ligand itself for some breeds.
A Review on: Advances in Membrane Technologies for Heavy Metal Removal from contaminated Water
Authors: Dawam Mohamed , Oraby Hussein , Gobara Mohamed
Published: September 2024

The contamination of water by various toxic constituents, particularly heavy metals, exerts deleterious effects on both flora and fauna, with potential repercussions for human well-being. Consequently, there exists a pressing imperative to explore methodologies aimed at the elimination of hazardous substances from polluted water. Among the array of extant approaches, membrane-based techniques emerge as notably efficacious for mitigating pollutants, specifically heavy metals, in water systems. The elimination of mineral contaminants from water holds paramount significance for fostering a hygienic environment and safeguarding human health. Polymeric membranes offer an energy-efficient approach to water purification, yet they encounter fouling issues during filtration. Surface modification of the membrane is one avenue for mitigating fouling, aiding in the maintenance of elevated water productivity levels. The present investigation undertakes a comprehensive examination of outcomes derived from diverse experiments conducted over the preceding two decades, with the objective of identifying the most pertinent membrane filtration processes, accounting for varied contaminant profiles.
Strategic Management of Egyptian-African Geothermal Power Plant Project 60-MW Associated with Sustainable Development in Kenya
Authors: Sharouda Emad El-Din , Gaber Sayed , Gouda Ossama
Published: September 2024

This paper presents the role of Egyptian government for satisfying sustainable development in African countries. However, Egypt has no geothermal power plant although there are many locations in eastern region of Egypt have sufficient quantity of geothermal energy resources. When the highest temperature of geothermal energy resources in Egypt is 51 °C, then it needs auxiliary heating system to produce electricity. So, Egyptian government uses geothermal energy resources as direct use in central heating system for agricultural applications or in physical therapy for encourage tourism sector in Egypt. Development of the African natural resources is considered the most important strategy of Egyptian Government and sharing African countries to obtain sustainability. Kenya is considered the unique country in Africa which utilizes geothermal energy resources for producing electricity. Geothermal Development Company GDC, Nairobi, Kenya produces 985 MW of electricity depending on geothermal energy resources in Kenya and this make Kenya in rank of sixth greatest country in the world utilizes geothermal energy resources for producing electricity after United States, Indonesia, Philippines, Turkey and New Zealand, respectively.
Promoting Sustainability through the Recycling and Reutilization of Polyethylene Packaging
Authors: Zaki Noor Elsayed , Fikry Reem Mohamed , Elgazzar Khaled Essam , Reda Ehssan Mohamed , Mohamden Reham
Published: September 2024

The outstanding performance and low carbon footprint of polymeric materials conflict with the sharp growth in plastic trash, which is why the current global plastics economy is largely linear. Reducing environmental problems requires a shift to a circular economy that keeps plastic in its most valuable state and encourages reduction, reuse, and recycling. The existing mechanical recycling procedures are constrained by cost, deterioration of mechanical qualities, and uneven product quality, but mechanical recycling is a crucial instrument in an environmentally and economically sustainable economy of plastics. Through the lens of a circular economy, it’s important to properly sort and recycle (PE) packaging to ensure its maximum potential for reuse. In this paper it discusses the optimum ratio between the recycled and raw (LDPE) pellets in order to create a plastic packaging with the same mechanical, physical and chemical properties with less cost in comparison to the ordinary one. Fourier Transform Infrared Spectroscopy (FTIR) and Energy Dispersive X-ray Spectroscopy (EDX) were used to characterize both raw and recycled (LDPE) pellets. The environmentally friendly LDPE nano-particles in polymer packaging will be tested in the second experimental section, and the results will be compared with those of regular polymer packaging.
Low temperature coupled oxidative/adsorptive desulfurization catalyzed by FeOOH/rGO nanocomposite
Authors: Matloob Aya M , Abd Elhafiz Dalia R , Abol-Fotouh Deyaa
Published: September 2024

Desulfurization of fossil fuel products has grabbed increased attention, where many research themes focus on the synthesis of novel materials with enhanced desulfurization potentialities, at a reasonable cost, and within a shorter working time. So, in this work, we synthesized ultrathin FeOOH nanorods and then anchored them over reduced graphene oxide (FeOOH/rGO nanocomposite) to act as catalyst/adsorbent system during in situ oxidative/adsorptive desulfurization of diesel fuel model. The XRD, FTIR and Raman analyses demonstrated the successful combination of the FeOOH with the rGO surface. The BET surface area of the FeOOH/rGO was enhanced by 2.2 folds compared to the parent FeOOH, with pore volume ~0.268 cc/g. TEM investigation proved the FeOOH-rGO conjugation. The catalytic processes were carried out in association with H2O2 as an oxidizing element in different conditions. FeOOH showed a high adsorption capacity of ~960 mg/g, and obeyed pseudo-second order kinetic confirming chemisorption nature, while the process Ea recorded about ~85.4 kJ/mol. On the other hand, FeOOH/rGO system achieved ultra-high adsorption capacity of ~989 mg/g with high removal efficiency (98.9%), which assumed FeOOH/rGO as a highly potential catalyst/adsorbent system for ultra desulfurization process.
Natural Isotopic Activity Ratios as Evidence of Migration and Leaching of Uranium in Egyptian Granitic Rocks
Authors: Ismaiel Nahla A. , Frag Eman Y. , Seif W. M. , Mira Hamed I. , Shabasy Ahmed M. , Khattab Mahmoud R.
Published: September 2024

Gamma-spectrometry was utilized to analyse radionuclides in granitic rocks from the El Eridiya area through radiometric measurements. The activity concentration of 238U ranges from 3493±83 to 5209±104 Bq kg−1, while for 234U and its isotope (235U), it varies from 957±32 to 1012±34 Bq kg−1 and 153.0±4.5 to 256.0±5.5 Bq kg−1, respectively. However, for the isotopes 230Th and 232Th, the range is from 11217±254 to 16291±305 Bq kg−1 and 31.0±1.1 to 85.3±0.5 Bq kg−1, respectively. The activity concentration of 40K ranged from 67.9±1.6 to 109.0±2.1 Bq kg−1. The ratios of 234U/238U in the studied granitic rock samples vary from 0.21±0.01 to 0.54±0.03. Due to the current oxidising conditions, most of the rock samples show a higher presence of 234U compared to 238U, with 234U/238U activity ratios below one. Additionally, the activity ratios of 232Th/238U range from 0.006 to 0.019 in the granitic rock samples from the El Eridiya area. Figures 3 and 4 display uranium enrichment, with all samples showing 232Th/238U ratios below one for the earth’s crust. Additionally, all samples showed 230Th/238U and 230Th/234U activity levels above one, suggesting preferential leaching of uranium in an oxygen-rich setting. Similarly, the 234U/238U and 230Th/238U activity ratios are below and above one, indicating U-leaching and U-accumulation, respectively. Figure 3 and 4 show uranium enrichment, with all samples having 232Th/238U activity ratios below one for the earth’s crust. There were benefits to uranium leaching in an environment with oxidation in all samples, with 230Th/238U and 230Th/234U activity ratios exceeding one. If the 234U/238U activity ratio is lower than one but the 230Th/238U activity ratio is higher than 1, it suggests U-leaching; if the 234U/238U activity ratio is greater than one and the 230Th/238U activity ratio is less than 1, it suggests U-accumulation.
The impact of various metals on the performance of TNT
Authors: Zaky M. Gaber , Elwesemy M. S. , Abdelhafiz Mahmoud , Hussein A. K. , Elshenawy Tamer , Elbeih Ahmed
Published: September 2024

In blast applications, investigations involving energetic materials and various reactive metals are conducted. Some examples of such metals include copper, aluminum, and magnesium aluminum composite (magnalium). On the other hand, aluminum’s cheap price, good dependability, and very high heat of combustion make it the most widely used gasoline additive. In this study, lab-scale formulations of metalized high explosives were made using TNT and various metallic fuels (Cu, Mg-Al, and Al). Then, using DSC and performance parameters measured by ballistic mortar, the researchers evaluated the explosives’ workability and destructive effect, as well as the impact of the metal fuels on TNT’s thermal behavior (Brisance by Kast). Results showed that the melting point of TNT shifted to lower temperatures due to the various metallic fuels (Cu, Al, Mg-Al). The Al with TNT sample also had the greatest brightness of the ones we looked at.
Carbon Emission Prediction Algorithm for Community Electricity Consumption Based on Improved PSO Algorithm with Optimized Autoregressive Moving Average Models
Authors: Chunyan Wang , Da Lu , Helong Li , Hao Chen
Published: September 2024

The anticipation of carbon emissions stemming from community electricity usage stands as a pivotal field of study. Such analysis holds the potential to furnish communities with informed pathways towards crafting viable carbon reduction strategies, thereby contributing significantly to the overarching goals of carbon peaking and eventual neutrality. The intricacies of carbon emissions from community electricity consumption are manifold, entangled with variables like energy consumption patterns, energy mix, and carbon emission coefficients. Hence, the imperative lies in crafting a predictive framework adept at holistically integrating these variables to enhance prognostic precision and reliability. Within this research, we propose a dynamic carbon emission factor regression model. This model is uniquely poised to capture real-time shifts influenced by changes in energy structure and policy landscapes, thereby amplifying predictive sensitivity. Leveraging the Particle Swarm Optimization (PSO) algorithm, we synchronously optimize the autoregressive terms (p) of the Autoregressive Integrated Moving Average (ARIMA) model and the moving average terms (q) of the MA model to attain a globally optimal solution. Crucially, this approach obviates the need for manual intervention and arbitrary parameter selection. In contrast to conventional optimization methodologies, our paper advances the PSO’s weight calculation mechanism. By assigning greater weight values during the initial iterations, the algorithm maintains robust global search capabilities. Subsequently, the inertia weight diminishes progressively throughout the iteration process, fostering precise local exploration.
Economic dispatching strategy of centralized wind-solar-hydrogen storage station
Authors: Jiang Yanteng , Jing Lantao , Wang Chao , Zhang Qiang , Zhang Bin
Published: September 2024

Compared to traditional energy storage, hydrogen energy storage is a novel form of energy storage that has exceptional potential in the temporal, energy, and spatial domains and is better suited to the numerous requirements of the new power system. Firstly, the operation mode of centralized wind-photovoltaic-hydrogen energy storage station is described and modeled around the new energy generation module, new energy convergence station and hydrogen energy storage module. On this basis, considering the operating cost and transaction income of the station, an economic dispatch model is established with the goal of optimal economy. An economic dispatch model for wind-photovoltaic-hydrogen energy storage stations is proposed. Finally, the data results show that this station model can bring economic benefits and promote high-proportion grid-connected new energy.
Temperature Field Distribution and Thermal Stress Analysis of Pumped Storage Electric Motors
Authors: Zhu Chuanhui , Mei Congli , Zhang Jian , Li Chen , Tong Jingyu , Yan Shubin
Published: September 2024

With the increasingly important role of pumped storage in energy systems, new and higher requirements have been put forward for the operation, safety, and economy of pumped storage power plants. The article takes a three-phase salient pole synchronous pumped storage motor as the research object, by using ANSYS finite element analysis software, a finite element model of a three-phase synchronous generator motor was established to analyze the internal temperature field distribution and thermal stress distribution of the motor. The results show that the higher temperature region of the entire system was concentrated at the winding, followed by the stator and rotor. Therefore, when optimizing the design of the motor in the future, the first step should be to start from the winding. The analysis of the thermal stress situation of the stator shows that the thermal stress and strain were mainly distributed at the inner diameter of the stator core, which was consistent with the distribution of the temperature field at the stator. The results of this study can provide theoretical guidance for the key maintenance areas and maintenance time of pumped storage power generation motors.
Design and implementation of intelligent dimming switch based on “Tuya Cloud”
Authors: Zou Jiawen , Wu Xiushan , Tang Jinyong , Yu Xianfeng
Published: September 2024

Intelligent lighting home boom almost swept the entire household appliance industry, all household appliances are in the direction of intelligent transformation or development, and intelligent dimming switch has been rapid development and widely used. Based on the Tuya IoT (Internet of Things) platform, this paper defines the Internet of things communication module, user interaction control App, and adopts the Tuya control and communication module board, as well as the circuit design of collecting field information and control logic. It realizes the docking of intelligent development with Tuya gateway and Tuya cloud platform, and realizes remote real-time control through App. The rapid development methods of intelligent system and the whole process of connecting with the platform are realized, so the development and design of intelligent dimming are implemented based on “Tuya cloud” platform.
Risk-benefit comparative analysis of different control methods for reservoirs under the water to electricity mode
Authors: Yan Xiaoran , Yu Hongjie , Liang Mengyu
Published: September 2024

For some small hydropower stations that are not under the control of power dispatching department, there are many ways to implement the reservoir operation scheme formulated under the premise of determining power by water. This paper respectively selects the output, flow and water level process as the control conditions, explores the risks and benefits of reservoir operation with different control variables, and selects the optimal operation scheme through comprehensive comparative analysis. Simulation results of a hydropower station in the Han River Basin show that when the output is taken as the control condition, the waste water is small, the power generation benefit is high, and the risk of the water level outside boundary is within the acceptable range. Considering the risk and benefit of reservoir operation and taking output as the control condition, it has significant advantages over water level and flow.