检索结果-南通市图书馆

Can Emax and platelet count truly differentiate between benign and malignant liver lesions?

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2025年第3期31卷 120-122页

作者： Manjeet Kumar Goyal Omesh Goyal Department of Gastroenterology and Human Nutrition Unit All India Institute of Medical SciencesNew Delhi 110029DelhiIndia Department of Gastroenterology Dayanand Medical College and HospitalLudhiana 141001PunjabIndia

This letter critically evaluates Jiang et al's article on the differentiation of benign and malignant liver lesions using Emax and platelet *** notable findings,significant methodological and interpretative limitations are *** study lacks detailed assay conditions for Emax measurement,employs inadequate statistical methods without robust multivariate analysis,and does not provide clinically relevant threshold *** nomogram's reliance on Emax as a major diagnostic contributor is questionable due to attenuation in hepatocellular carcinoma patients with ***,the study's limitations,such as selection bias and confounding factors,are not adequately *** research should adopt more rigorous methodologies,including prospective studies with larger cohorts and standardized protocols for biomarker measurement,to enhance validity and clinical applicability.

关键词： Emax Platelet count Benign liver lesions Malignant liver lesions Hepatocellular carcinoma Cirrhosis Diagnostic biomarkers Shear wave elastography Methodological limitations Clinical utility

Realizing interfacial coupled electron/ion transport through reducing the interfacial oxygen density of carbon skeletons for high-performance lithium metal anodes

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第2期101卷 744-750页

作者： Yao-Lu Ye Yan Zhou Huan Ye Fei-Fei Cao college of Chemistry Huazhong Agricultural University Institute of Applied Mycology College of Plant Science and Technology Huazhong Agricultural University

Lithium plating/stripping occurs at the a node/electrolyte interface which involves the flow of electrons from the current collector and the migration of lithium ions from the solid-electrolyte interphase（SEI）.The dual continuous rapid transport of interfacial electron/ion is required for homogeneous Li ***,we propose a strategy to improve the Li metal anode performance by rationally regulating the interfacial electron density and Li ion transport through the SEI *** key technique involves decreasing the interfacial oxygen density of biomass-derived carbon host by regulating the arrangement of the celluloses precursor *** higher specific surface area and lower interfacial oxygen density decrease the local current density and ensure the formation of thin and even SEI film,which stabilized Li+transfer through the Li/electrolyte ***,the improved graphitization and the interconnected conducting network enhance the surface electronegativity of carbon and enable uninterruptible electron *** result is continuous and rapid coupled interfacial electron/ion transport at the anode/electrolyte reaction interface,which facilitates uniform Li deposition and improves Li anode *** Li/C anode shows a high initial Coulombic efficiency of 98% and a long-term lifespan of over 150cycles at a practical low N/P（negative-to-positive） ratio of 1.44 in full cells.

关键词： Cellulose Electron/ion conducting Interfacial oxygen density Lithium metal batteries Lithium-lean metal anodes

Design of reaction conditions for the enhancement of microbial degradation of dyes in sequential cycles

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2009年第12期21卷 1646-1651页

作者： Rashmi Sanghi Awantika Dixit Preeti Verma Sadhna Puri Facility for Ecological and Analytical Testing 302 Southern Laboratories Institute of Technology The LNM Institute of Information Technology Jaipur dayanand girls college CSJM University

The present study evaluated the potential of white-rot fungal strain Coriolus versicolor to decolorize five structurally different dyes in sequential batch reactors under optimized conditions. The experiments were run continuously for seven cycles of 8 d each. High decolorizing activity was observed even during the repeated reuse of the fungus, especially when the old medium was replaced with fresh medium after every cycle. Biodegradation was the dominating factor as the fungus was able to produce the enzyme laccase mainly, to mineralize synthetic dyes. The nutrients and composition of the medium played important roles in sustaining the decolorisation potential of the fungus. Corncob was found be an easy and cheap substitute for carbon source for the fungus. Glucose consumption by the fungus was in accordance to its decolorisation activity and chemical oxygen demand （COD） reduction.

关键词： Coriolus versicolor decolorisation sequential batch reactor

In-situ formation of a new cation renders perovskite solar modules with a record efficiency and long-term stability

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2025年第2期68卷 409-410页

作者： Shanxiao Lin Xixing Wen Xiuwen Xu college of Electronic and Optical Engineering and college of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China

Over the past 14 years,the efficiency of perovskite solar cells has surged from 3.8% to 26.7%[1],establishing it as an unrivaled choice for next-generation ***,maintaining the long-term stability of perovskite solar modules(PSMs)remains a *** particular,the thermal-and light-induced changes in crystal structure,composition,and optoelectronic properties are the primary causes of device degradation,currently considered the Achilles’heel that hinders its commercialization[2–4].Now,writing in Science,Ding et al.[5]achieve a milestone by overcoming the thermal-and light-induced degradation,rendering the PSM with a record efficiency of 23.2% and a T80(time to 20% efficiency loss)over 4,000 h at 85℃ and 85%relative humidity(RH)under light *** key behind this milestone is to utilize the cation reactivity to in-situ form methyl tetrahydrotriazinium([MTTZ]+,a new cation)and dimethylammonium([DMA]+)in precursor solution(Figure 1a).These cations remarkably modulate perovskite crystallization and stabilize the perovskite.

关键词： perovskite stability modules

Stability switches mechanism and PID control in reaction-diffusion network-organized neural systems with transmission delays

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2025年第2期68卷 199-215页

作者： Xiangyu DU Min XIAO Wenwu YU Jiajin HE college of Automation&college of Artificial Intelligence Nanjing University of Posts and TelecommunicationsNanjing 210023China college of Mathematics Southeast UniversityNanjing 211189China

Traditionally,the spatiotemporal dynamics of neural networks have been analyzed in the locally continuous *** this modeling approach is straightforward and practical,it fails to encapsulate real-world networks’intricate topological structures and ***,the mechanisms of stability switches induced by time delays and diffusion effects in networkorganized systems are still ***,effective dynamic optimization strategies for network-organized models remain to be *** this study,we develop a delayed reaction-diffusion neural network model on complex *** system incorporates the effects of inter-nodal diffusion coupling and exhibits profound architectural *** then pioneer the proportional-integral-derivative(PID)feedback control into the network-organized model to modulate dynamic *** linear stability analysis is conducted firstly,demonstrating that Turing patterns and Hopf bifurcation can be induced in the controlled neural network by varying diffusion coefficients and time ***,the bifurcation direction is deduced via the center manifold ***,a series of simulations are performed to validate the theoretical analysis and substantiate the efficacy of the PID control *** results exhibit that the PID feedback controller can flexibly regulate the dynamics of the network-organized systems and possesses excellent disturbance rejection capabilities.

关键词： complex network neural networks PID control turing instability hopf bifurcation time delays turing pattern

Surface controllable wettability using amphiphilic rotaxane molecular shuttles

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2025年第2期36卷 422-425页

作者： Dongpu Wu Zheng Yang Yuchen Xia Lulu Wu Yingxia Zhou Caoyuan Niu Puhui Xie Xin Zheng Zhanqi Cao college of Science Henan Agricultural University

Herein,an alkyne-terminated acid/base responsive amphiphilic [2]rotaxane shuttle was synthesized,and then modified onto the glass surface through “click” *** XPS N 1s spectrum and contactangle measurement were performed to prove the successful *** amphiphilic [2]rotaxane functionalized surface presented controllable wettability responding to external acid-base *** bistable rotaxane modified material system promoted the practical application of molecular machines.

关键词： Amphiphilic rotaxane Controllable wettability Stimuli-responsive

Manufacture the conducting polymer with light

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2025年第1期68卷 8-9页

作者： Yang Li Tianyu Li Yan Ji Baoguang Liu college of Electronic and Optical Engineering&college of Flexible Electronics(Future Technology) Nanjing University of Posts&TelecommunicationsNanjing 210023China

Poly(3,4-ethylenedioxythiophene)(PEDOT),heralded as the“king”of conducting polymers,is esteemed in bioelectronics for its mixed electronic and ionic conductivity,mechanical properties compatible with biological tissues,tunable healing ability and stability in diverse environments^([1]).Based on additive manufacturing of three-dimensional structures,PEDOT realizes the implementation in the efficient production of flexible bioelectronics,the construction of intricate electrode-neural implantations,and the development of smart brain-computer-interfaces^([2]).

关键词： conducting implantation additive

La3+ substitution-adjusted magnetic and optical properties with enhanced photocatalytic activity and stability of copper zinc nickel ferrites for wastewater treatment applications

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2025年第2期43卷 319-328页

作者： N.S.Al-Bassami General Studies Department Jubail Industrial College

Copper-zinc-nickel（Cu-Zn-Ni） ferrite nanoparticles are used for wastewater treatment ***,low degradation efficiency and stability are two main issues that make them unsuitable for actual production *** this paper,the citrate-nitrate auto-combustion method was applied for the formation of Cu0.5Zn0.25Ni0.25LaxFe2-xO4;（0≤x≤0.1;step 0.02）(CZNL) *** the substitution process entails the replacement of a small ion with a larger one,the lattice constant and crystallite size does not exhibit a consistent incremental *** behavior is justified and *** size of all the CZNL ferrite nanoparticles is in the range of 8-12 nm,and the lattice constant is in the range of 8.6230 to 8.4865 *** morphological analysis conducted using field emission-scanning electron microscopy（FE-SEM） reveals that the CZNL exhibits agglomerated spherical *** energy dispersive X-ray spectrameter（EDAX） analysis was employed to confirm the elemental composition of CZNL *** the process entails the substitution of Fe3+magnetic ions with nonmagnetic ions La3+,the magnetic parameters of CZNL nanoferrites show a general decreasing trend as *** 20 K,saturation magnetization Ms shows an overall drop in its values from 59.302 emu/g at x=0.0-41.295 emu/g at x=0.1,the smallest value of 37.87 emu/g is recorded at x=*** highest coercivity（Hc=125.9 Oe） and remanence（Mr=13.32 emu/g） are recorded for x=0.08 and x=0.04 nanoferrite,*** band gap of all the CZNL nanoferrites was determined using the Kubelka-Munk function and Tauc plot for direct permitted *** doping modifies the band gap（within 1.86-1.75 eV）,increases light absorption,induces efficient e/h separation and charge migration to *** nanoferrite Cu0.5Zn0.25Ni0.25La0.06Fe1.94O4achieves a degradation efficiency of 97.3% for methylene blue（MB） dye removal after just 60 *** five recycling processes,the nanoc

关键词： Copper-zinc-nickel Ferrite Photocatalytic properties Rare earths Wastewater treatment

An Online Exploratory Maximum Likelihood Estimation Approach to Adaptive Kalman Filtering

在线全文

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica Sinica 2025年第1期12卷 228-254页

作者： Jiajun Cheng Haonan Chen Zhirui Xue Yulong Huang Yonggang Zhang the college of Intelligent Systems Science and Engineering Harbin Engineering University the Engineering Research Center of Navigation Instruments Ministry of Education the college of Intelligent Systems Science and Engineering the college of Future Technology Harbin Engineering University IEEE

Over the past few decades, numerous adaptive Kalman filters(AKFs) have been proposed. However, achieving online estimation with both high estimation accuracy and fast convergence speed is challenging, especially when both the process noise and measurement noise covariance matrices are relatively inaccurate. Maximum likelihood estimation(MLE) possesses the potential to achieve this goal, since its theoretical accuracy is guaranteed by asymptotic optimality and the convergence speed is fast due to weak dependence on accurate state ***, the maximum likelihood cost function is so intricate that the existing MLE methods can only simply ignore all historical measurement information to achieve online estimation,which cannot adequately realize the potential of MLE. In order to design online MLE-based AKFs with high estimation accuracy and fast convergence speed, an online exploratory MLE approach is proposed, based on which a mini-batch coordinate descent noise covariance matrix estimation framework is developed. In this framework, the maximum likelihood cost function is simplified for online estimation with fewer and simpler terms which are selected in a mini-batch and calculated with a backtracking method. This maximum likelihood cost function is sidestepped and solved by exploring possible estimated noise covariance matrices adaptively while the historical measurement information is adequately utilized. Furthermore, four specific algorithms are derived under this framework to meet different practical requirements in terms of convergence speed, estimation accuracy,and calculation load. Abundant simulations and experiments are carried out to verify the validity and superiority of the proposed algorithms as compared with existing state-of-the-art AKFs.

关键词： Adaptive Kalman filtering coordinate descent maximum likelihood estimation mini-batch optimization unknown noise covariance matrix