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Evaluation of co-spoilage potential of Pseudomonas fragi and Pseudomonas lundensis isolated from chilled pork:in vitro and in situ

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Food science and Human Wellness 2025年第3期14卷 1148-1157页

作者： Han Dou Anthony Pius Bassey Jingwen Li Xianming Zeng Keping Ye State Key Laboratory of Meat Quality Control and Cultured Meat Development Jiangsu Collaborative Innovation Center of Meat Production and ProcessingCollege of Food Science and TechnologyNanjing Agricultural UniversityNanjing 210095China

Pseudomonas fragi and Pseudomonas lundensis have been reported as key spoilage bacteria in aerobicallystored chilled ***,the co-spoilage effect of these bacteria has not been effectively *** study evaluated the spoilage potential of ***,*** and ***+*** in vitro and in situ at 4℃.The results showed that ***+*** performed the highest growth rate and displayed larger decomposition zone diameters on raw-pork juice agar(RJA)***+*** inoculants exhibited the strongest proteolytic activity,which resulted in the highest values of trichloroacetic acid(TCA)-soluble peptides concentration,total volatile basic nitrogen(TVB-N)content and myofibril fragmentation index(MFI)in chilled ***,the inoculated samples showed different pH and sensory ***,increased amounts of volatile organic compounds(VOCs),such as octanal,nonanal,2-nonanone,1-propanol,1-octanol,isopropyl acetate,and 2,6-dimethylpyazine,were observed in inoculated ***+*** samples,hinting their potential use as spoilage markers for spoilage monitoring of *** study would provide a deeper understanding of meat spoilage and serve as a reference for future studies to inhibit meat spoilage.

关键词： Pseudomonas fragi Pseudomonas lundensis Spoilage Pork Protein degradation

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Sustainable Metal-Organic Frameworks from Plastic Wastes Using Microwave Technique for Heavy Metal Decontamination

Sustainable Metal-Organic Frameworks from Plastic Wastes Usi...

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2024 Offshore technology Conference Asia, OTCA 2024

作者： Sunatda, A. Kanokwan, K. Technology and Innovation Development Support PTT Exploration and Production Company Limited Bangkok Thailand Department of Materials Science and Engineering School of Molecular Science and Engineering Vidyasirimedhi Institute of Science and Technology Rayong Thailand

ISBN: (纸本)9781959025030

Plastic waste is a significant environmental concern, with over 400 million tons generated per year, and less than 15% being recycled. Polyethylene terephthalate (PET), derived benzene-1,4-dicarboxylic acid (BDC), is the most common plastic waste which can be used as organic linker for Metal-organic frameworks (MOFs). The sustainable approach with waste management to valuable product is demonstrated by utilizing waste materials, PET bottle, to MOFs product. Not only plastic waste but waste metals such as aluminum foil metal and steel wool also can be recycled using microwave technique. Microwave synthesis can enhance efficiency and sustainability, reducing reaction time in MOFs synthesis. The developed synthesis method by microwave technique is demonstrated to produce MOFs materials from PET plastic waste, steel wool (Fe), and Aluminum foil (Al). Moreover, it can be reduced the operating expense (OPEX) cost of MOFs materials for heavy metal removal in condensate. The results showed that Al-MOF and Fe-MOF were successfully synthesized and gave the good efficiency for arsenic removal in condensate. In addition, recycled-based MOFs have proposed some future trends and challenges of OPEX cost reduction which can be used as an alternative to the conventional porous material, metal oxides and zeolites. Copyright © 2024, Offshore technology Conference.

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Barriers to transition to resource-oriented sanitation in rural Ethiopia

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Environmental science and Pollution Research 2025年第5期32卷 2668-2681页

作者： Abebe, Thomas Ayalew Novotný, Josef Hasman, Jiří Mamo, Biruk Getachew Tucho, Gudina Terefe Department of Environmental Health Sciences and Technology Institute of Health Jimma University Jimma Ethiopia Department of Social Geography and Regional Development Faculty of Science Charles University Prague Czech Republic

Recycling excreta resources through resource-oriented toilet systems (ROTS) holds transformative potential, yet adoption remains limited, especially where benefits could be high. This study aims to understand constraints hindering the adoption of ROTS in one such area in Ethiopia. Based on a survey among 476 households comprising 2393 individuals, we examine the plans to use ROTS and willingness to pay for ROTS and apply structural equation modelling to analyze the drivers of these two outcomes while comparing the explanative power of the extended technology acceptance model, extended theory of planned behaviour, and their combined model. While 40% of households expressed a plan to use ROTS and 20% reported willingness to pay for a subsidized ROTS with a biogas unit, merely 7% revealed both the plan to use and sufficient willingness to pay, highlighting the need to target both these complementary outcomes concurrently. The theory of planned behaviour showed the best explanative power, also revealing that these two outcomes are influenced by partly distinct sets of factors. Findings imply that common efforts to ease objective constraints through subsidies, which incentivize willingness to pay, are necessary but not sufficient for facilitating the adoption of ROTS. To simultaneously enhance intentions to use, it is also recommended to target psychosocial drivers, such as perceived behavioural control and perceived community support, through awareness creation, behaviour change activities, and community engagement techniques. © The Author(s) 2025.

关键词： Recycling

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Research on the Evaluation of Stealth Target

Research on the Evaluation of Stealth Target

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2024 Photonics and Electromagnetics Research Symposium, PIERS 2024

作者： Wang, Yao He, Zi Ding, Dazhi Ding, Fan Nanjing University of Science and Technology Nanjing China The China Ship Development and Design Center Wuhan China

ISBN: (纸本)9798350375909

It is crucial to evaluate the effectiveness of stealth technology in order to ensure its ability to reduce the detectability of target. The evaluating effectiveness of stealth is usually done by comparing the performance metrics of target with the pre-stealth and the post-stealth. There are four performance metrics that can be used to evaluate performance with the pre-stealth and the post-stealth. They are the mean radar scattering cross section (RCS), the interval range of the radar scattering cross section, the sample difference error function and the effectiveness improvement ratio. In this paper, the pre-stealth and post-stealth effects are simulated by means of software modelling. Model contains the PEC structure, dielectric structure and coating structure. The RCS value of the target in the radar system is given. It is used to determine whether the scattering capability of the target has been reduced by comparing the post-stealth RCS value with the pre-stealth RCS value. With the smaller RCS value, the target's scattering capability for radar waves is weakened. Then, the range of intervals of the target RCS distribution is given. The minimum and maximum values of the interval are set according to the range of the RCS value with the pre-stealth and the post-stealth, moreover the interval spacing is set. It can be seen that the number of times the RCS appeared in each interval segment. Moreover, it can be seen that the highest number of times the RCS. It can determine the range of the data. In addition, the difference between the pre-stealth and post-stealth data is determined by the sample difference error function. © 2024 IEEE.

关键词： Radar cross section

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Identification and functional analysis of CG3526 in spermatogenesis of Drosophila melanogaster

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Insect science 2024年第1期31卷 79-90页

作者： Qihao Hu Yanhong Xiao Runnan Wei Ting Tang Liang Wen Yuzhen Lu Xiao-Qiang Yu Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology Guangzhou Key Laboratory of Insect Development Regulation and Application ResearchInstitute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhou510631 China

Spermatogenesis is a critical part of reproduction in insects;however,its molecular mechanism is still largely *** this study,we identified a testis-specific gene CG3526 in Drosophila *** analysis showed that CG3526 contains a zinc binding domain and 2 C2H2 type zinc fingers,and it is clustered to the vertebrate really interesting new gene(RING)family E3 ubiquitin-protein *** CG3526 was knocked down by RNA interference(RNAi),the testis became much smaller in size,and the apical tip exhibited a sharp and thin end instead of the blunt and round shape in the control *** importantly,compared to the control flies,only a few mature sperm were present in the seminal vesicle of C587-Gal4>CG3526 RNAi *** staining of the testis from CG3526 RNAi flies showed that the homeostasis of testis stem cell niche was disrupted,cell distribution in the apical tip was scattered,and the process of spermatogenesis was not ***,we found that the phenotype of CG3526 RNAi flies’testis was similar to that of testis of Stat92E RNAi flies,the expression level of CG3526 was significantly downregulated in the Stat92EF06346 mutant flies,and the promoter activity of CG3526 was upregulated by *** together,our results indicated that CG3526 is a downstream effector gene in the JAK-STAT signaling pathway that plays a key role in the spermatogenesis of Drosophila.

关键词： CG3526 JAK-STAT spermatogenesis STAT92E testis

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Evaluation of Behavior of Q(t) Measurement and Noise Effects 5

Evaluation of Behavior of Q(t) Measurement and Noise Effects

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5th IEEE International Conference on Dielectrics, ICD 2024

作者： Kitan, Ryota Iwata, Shinya Tsuya, Tomoka Osaka Research Institute of Industrial Science and Technology Research Development of Product Reliability Izumi Osaka Japan

ISBN: (纸本)9798350308976

DC power equipment is increasingly being integrated into our society, necessitating reliable diagnostic methods for insulation materials under high DC electric fields. The current integration method (Q(t) measurement) is considered one of the applicable methods for measuring Q(t) data. However, the mathematical and physical analysis of Q(t) measurements is not yet fully developed, resulting in partially analyzed data, especially concerning variance handling. By introducing a circuit model and solving differential equations numerically, this study investigates the causes of variance in the delay properties at the early stages of Q(t). Average Q(t) data for polyimide sample sheets with pseudo-noise in initial conditions were generated, and the numerical changes were evaluated. The findings suggested that variances in delay properties were mainly due to initial offsets in the first and second time derivatives of Q(t), rather than offsets in Q(t) itself. Therefore, it is revealed that the user of Q(t) measurement should be more attentive to the stability and control of inrush current when applying it to actual insulation materials to make diagnoses more reliable. © 2024 IEEE.

关键词： Q factor measurement

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Quantifying Consciousness for Alzheimer’s Disease Diagnosis through Electroencephalogram Processing 24

Quantifying Consciousness for Alzheimer’s Disease Diagnosis...

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8th International Conference on Medical and Health Informatics, ICMHI 2024

作者： Ma, Yuan Spaneas Bland, Jeffrey Keith Yoshikawa, Gaku Fujinami, Tsutomu Development Division FOVE Inc. Tokyo Japan School of Knowledge Science Japan Advanced Institute of Science and Technology Nomi Japan

ISBN: (纸本)9798400716874

Electroencephalograms (EEG) could serve as a biomarker for Alzheimer’s disease (AD), leveraging its indicative features. However, the theoretical implications of EEG in the clinical diagnostic routine for AD remain underexplored. This study introduces an approach to analyze EEG signals within the computational framework proposed by integrated information theory, aiming to process EEG signals from a consciousness perspective for AD diagnosis. Initially, we quantified consciousness as an indicator, termed the Φ value, by analyzing a public EEG dataset comprising recordings from healthy elderly individuals and people with AD. Subsequently, we trained machine learning models using Φ values combined with additional information to classify the two population groups. Our best classification accuracy surpassed that of previous benchmark research. This study underscores the promising potential of EEG signals in measuring consciousness for diagnosing AD. As future endeavors, we outline three key aspects for exploration, including frequency domain analysis, electrode combination complexities, and temporal resolution. © 2024 ACM.

关键词： Electroencephalography

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Co-Ru alloy nanoparticles decorated onto two-dimensional nitrogen doped carbon nanosheets towards hydrogen/oxygen evolution reaction and oxygen reduction reaction

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Journal of Energy Chemistry 2023年第12期87卷 286-294,I0008页

作者： Huizhen Wang Pengfei Yang Xiaoyuan Sun Weiping Xiao Xinping Wang Minge Tian Guangrui Xu Zhenjiang Li Yubing Zhang Fusheng Liu Lei Wang Zexing Wu Key Laboratory of Eco-chemical Engineering Ministry of EducationInternational Science and Technology Cooperation Base of Eco-chemical Engineering and Green ManufacturingCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042ShandongChina College of Science Nanjing Forestry UniversityNanjing 210037JiangsuChina Scientific Green(Shandong)Environmental Technology Co.Ltd Jining Economic Development ZoneJining 272499ShandongChina School of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina College of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina

Constructing highly-efficient electrocatalysts toward hydrogen evolution reaction(HER)/oxygen evolution reaction(OER)/oxygen reduction reaction(ORR)with excellent stability is quite important for the development of renewable energy-related ***,Co-Ru based compounds supported on nitrogen doped two-dimensional(2D)carbon nanosheets(NCN)are developed via one step pyrolysis procedure(Co-Ru/NCN)for HER/ORR and following low-temperature oxidation process(Co-Ru@RuO_(x)/NCN)for *** specific 2D morphology guarantees abundant active sites ***,the synergistic effects arising from the interaction between Co and Ru are crucial in enhancing the catalytic ***,the resulting Co-Ru/NCN shows remarkable electrocatalytic performance for HER(70 mV at 10 mA cm^(-2))in 1 M KOH and ORR(half-wave potential E_(1/2)=0.81 V)in 0.1 M ***,the Co-Ru@RuO_(x)/NCN obtained by oxidation exhibits splendid OER performance in both acid(230 mV at 10 mA cm^(-2))and alkaline media(270 mV at 10 mA cm^(-2))coupled with excellent ***,the fabricated two-electrode water-splitting device exhibits excellent performance in both acidic and alkaline *** research provides a promising avenue for the advancement of multifunctional nanomaterials.

关键词： Electrocatalyst 2D Carbon nanosheet Hydrogen/oxygen evolution reaction Oxygen reduction reaction Water-splitting

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Structural, Magnetic, Relaxor Ferroelectric and Magnetoelectric Coupling Properties in Aurivillius Phase Bi6La3Ti3Fe5O27 4th

Structural, Magnetic, Relaxor Ferroelectric and Magnetoelect...

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4th International Symposium on Insulation and Discharge Computation for Power Equipment, IDCOMPU 2023

作者： Wu, Maosong Xiao, Long Deng, Feng Zheng, Shengquan Science and Technology on Electromagnetic Compatibility Laboratory China Ship Development and Design Center Wuhan430064 China

ISBN: (纸本)9789819974122

Polycrystalline ceramics of Bi6La3Ti3Fe5O27 (BLTF) were prepared by a sol–gel method. Structural, magnetic, relaxor ferroelectric and magnetoelectric coupling properties were investigated. Studies indicate that the prepared sample has a plate-like shape structure with a thickness of 160–170 nm and a diameter of 2 µm. La substitution has been shown to effectively induce the room temperature combining of ferroelectricity and ferromagnetism, thus indicating a promising way for improving multiferroic properties of antiferromagnetic Bi9Ti3Fe5O27. Two dielectric relaxations were observed in the temperature ranges of 500–590 and 600–650 K in BLTF ceramics. In addition, the magnetoelectric coupling effect between charge and spin ordering was determined by measuring the relative change of the ferroelectric polarization and dielectric constant in external magnetic field. © Beijing Paike Culture Commu. Co., Ltd 2024.

关键词： Bismuth compounds

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An experimental study of noise generated by tandem blades

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Chinese Journal of Aeronautics 2025年第2期38卷 143-160页

作者： Xiaolong TANG Fan TONG Chao WANG Jue DING Guangming LI Xiaoquan YANG Shanghai Institute of Applied Mathematics and Mechanics Shanghai Frontier Science Center of MechanoinformaticsShanghai Key Laboratory of Mechanics in Energy EngineeringSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200072China Key Laboratory of Aerodynamic Noise Control China Aerodynamics Research and Development CenterMianyang 621000China Equipment Design and Testing Technology Research Institute China Aerodynamics Research and Development CenterMianyang 621000China

To facilitate the low-noise design of tandem lift bodies as applied in aeroengines and aircraft,the acoustic features of tandem blades are investigated by wind-tunnel *** is further specialized for the rotating blades applied in contra-rotating open rotors under the concept of frozen-rotor.A 70-channel phased microphone array and nine high-precision free-field microphones are *** beamforming method,enhanced by a source filtering technique,is employed to locate noise sources,providing insights into the source patterns of blade-blade interaction noise concerning flow speed,blade spacing,and aft blade *** results show the following:(A)Sources of tandem-blade noise exist in the form of concentrated source clusters,resulting in two major clusters:the mid-span interaction noise and the tip-induced noise.(B)These source clusters tend to separate as flow speed or blade spacing increases.(C)By increasing blade spacing,the band-pass filtered overall sound pressure level is reduced by 2.9 dB.(D)A two-phase noise suppression pattern is observed with blade clipping,resulting in a total reduction of 3.0 dB for the interaction noise through the removal of tip-induced noise sources and the replacement of mid-span noise *** on these findings,suggestions concerning blade spacing and clipping are discussed.

关键词： Tandem blades Contra-rotating open rotor Noise Beamforming Blade spacing and clipping Wind tunnel test

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