Springer最新文献_第6页

Environment-induced entanglement in Gaussian open quantum systems

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2024-12-24 DOI: 10.1007/s11128-024-04624-2

A. Dhahri, F. Fagnola, D. Poletti, H. J. Yoo

引用次数: 0

Describing the speed of sound peak of isospin-asymmetric cold strongly interacting matter using effective models

IF 2.6 3区物理与天体物理

The European Physical Journal A Pub Date : 2024-12-24 DOI: 10.1140/epja/s10050-024-01469-2

Alejandro Ayala, Bruno S. Lopes, Ricardo L. S. Farias, Luis C. Parra

引用次数: 0

Synthesis and properties of naphthalimide derivative functionalized N,N′-bicarbazole for complementary white light-emitting diodes with exciplex

IF 2.8 4区工程技术

Journal of Materials Science: Materials in Electronics Pub Date : 2024-12-24 DOI: 10.1007/s10854-024-14099-7

Xiaoling Xie, Jingjing Liu, Lei Yan, Haocheng Zhao, Yuling Wu, Yanqin Miao, Hua Wang

{"title":"Synthesis and properties of naphthalimide derivative functionalized N,N′-bicarbazole for complementary white light-emitting diodes with exciplex","authors":"Xiaoling Xie, Jingjing Liu, Lei Yan, Haocheng Zhao, Yuling Wu, Yanqin Miao, Hua Wang","doi":"10.1007/s10854-024-14099-7","DOIUrl":"10.1007/s10854-024-14099-7","url":null,"abstract":"<div>1,8-naphthalimide (NI) derivatives are custom-modified specifically as emitting layers in organic light-emitting devices (OLEDs) to realize full-color emission and improve the lifetime and luminous stability. In this work, a multifunctional cruciate-type blue emitter BCz-NI based on N-buthyl-1,8-naphthalimide linked with the N,N′-bicarbazole donor group was designed and synthesized with D-A structured. The emitter BCz-NI shows hybridized local and charge-transfer state characteristics to make full use of the formed excitons and reduce losing energy, which is attributed to the cruciate-type core providing efficient steric hindrance to promotes energy transfer. The non-doped OLEDs based on BCz-NI as a blue light material to achieve warm white light emission with commission internationale de leclairage coordinates of (0.41, 0.37) by combining the blue light material and the exciplex generated with the electron transport layer. This research would provide theoretical basis for complementary white light OLED by forming exciplex.</div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10854-024-14099-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of self-supporting materials using room temperature stirring method NiMoO4@CoMoO4 research on core–shell nanocomposites and their capacitive properties

IF 2.8 4区工程技术

Journal of Materials Science: Materials in Electronics Pub Date : 2024-12-24 DOI: 10.1007/s10854-024-14110-1

Jing Wang, Yang Liu, Tingting Hao, Jian Hao, Tenghao Ma

{"title":"Preparation of self-supporting materials using room temperature stirring method NiMoO4@CoMoO4 research on core–shell nanocomposites and their capacitive properties","authors":"Jing Wang, Yang Liu, Tingting Hao, Jian Hao, Tenghao Ma","doi":"10.1007/s10854-024-14110-1","DOIUrl":"10.1007/s10854-024-14110-1","url":null,"abstract":"<div>In this paper, foam nickel conductive substrate NiMoO4@CoMoO4 self-supporting core–shell structure composite material. The microstructure and phase structure of the sample were analyzed through characterization tests such as SEM, TEM, XRD, proving that the prepared material is a self-supporting core–shell structure composite material. The NiMoO4@CoMoO4 composite materials (131.3 m2/g) have a larger specific surface area compared to single materials NiMoO4(100.79 m2/g) and CoMoO4(99.28 m2/g). This self-supporting core–shell structure is conducive to full contact between the electrode material and the electrolyte, thereby accelerating the electrochemical reaction and storing more charges. Further electrochemical performance tests were conducted on the material using a single electrode. The research results showed that the specific capacity of the material was 1712 F/g at a current density of 5 A/g. After 10,000 cycles, the capacitance retention rate was 99.3%.In the experiment, it was also studied that NiMoO4@CoMoO4 self-supporting core–shell structure composite material as positive electrode, carbon nanotubes (CNTs) as negative electrode, matching high-performance NiMoO4@CoMoO4 //CNTs solid-state asymmetric supercapacitors. The research results indicate that the asymmetric device has a high power density (energy density of 80.6 Wh/kg) and energy density (corresponding to a power density of 8000 W/kg). At a current density of 5 A/g, the device has a specific capacitance retention rate of 97.3% after 10,000 cycles, indicating that the asymmetric device has excellent cycling stability. This article is about the synthesis of excellent-performance NiMoO4@CoMoO4 composite materials providing an efficient and convenient method.</div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ecological multivariate assisted spectrophotometric methods for determination of antipyrine and benzocaine HCl in presence of antipyrine official impurity and benzocaine HCl degradant: toward greenness and whiteness

IF 4.3 2区化学

BMC Chemistry Pub Date : 2024-12-24 DOI: 10.1186/s13065-024-01352-7

Khadiga M. Kelani, Maha A. Hegazy, Amal M. Hassan, Ahmed H. Nadim

{"title":"Ecological multivariate assisted spectrophotometric methods for determination of antipyrine and benzocaine HCl in presence of antipyrine official impurity and benzocaine HCl degradant: toward greenness and whiteness","authors":"Khadiga M. Kelani, Maha A. Hegazy, Amal M. Hassan, Ahmed H. Nadim","doi":"10.1186/s13065-024-01352-7","DOIUrl":"10.1186/s13065-024-01352-7","url":null,"abstract":"<div>A simple and green chemometrics-assisted spectrophotometric technique has beendeveloped and validated for the determination of antipyrine (ANT) and benzocaine HCl (BEN) along with the official impurity of ANT, antipyrine impurity A (ANT imp-A), and the degradation product of BEN, p-amino benzoic acid (PABA), in their quaternary mixture. Three models were developed and compared: partial least squares (PLS), artificial neural networks (ANN), and multivariate curve resolution-alternating least squares (MCR-ALS) where the four studied drugs were successfully quantified. The quantitative determination of the studied drugs was assessed using percentage recoveries, standard errors of prediction, and root mean square errors of prediction. The ANN model demonstrated the lowest error and the best correlation making it the most accurate method for analysis. The models were constructed in the ranges of 5.0–9.0 µg mL−1 for ANT, 1.0–5.0 µg mL−1 for BEN, 0.5–2.5 µg mL−1 for ANT imp-A, and 0.25–1.25 µg mL−1 for PABA. The established models successfully determined ANT, BEN, ANT imp-A, and PABA with detection limits of 0.312, 0.178, 0.093, and 0.042 µg mL−1 for PLS, 0.185, 0.085, 0.001, and 0.034 µg mL−1 for ANN; and 0.473, 0.240, 0.073, and 0.069 µg mL−1 for MCR-ALS, respectively. The greenness and the whiteness of the proposed method were assessed using two green evaluating approaches: analytical Eco-scale, and AGREE, along with one white analytical chemistry evaluating tool, RGB. The three proposed models were successfully applied for determination of ANT and BEN in their pharmaceutically co-formulated dosage forms. They are also recommended for stability assays and purity testing of these drugs in quality control laboratories.</div>","PeriodicalId":496,"journal":{"name":"BMC Chemistry","volume":"18 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://bmcchem.biomedcentral.com/counter/pdf/10.1186/s13065-024-01352-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Klein-Gordon Oscillator Subject to a Coulomb-type Potential in Bonnor-Melvin Universe with a Cosmological Constant

IF 1.7 4区物理与天体物理

Few-Body Systems Pub Date : 2024-12-24 DOI: 10.1007/s00601-024-01978-2

L. G. Barbosa, C. C. Barros Jr.

引用次数: 0

Kinetic theory of stellar systems and two-dimensional vortices

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-12-24 DOI: 10.1140/epjp/s13360-024-05797-6

Pierre-Henri Chavanis

{"title":"Kinetic theory of stellar systems and two-dimensional vortices","authors":"Pierre-Henri Chavanis","doi":"10.1140/epjp/s13360-024-05797-6","DOIUrl":"10.1140/epjp/s13360-024-05797-6","url":null,"abstract":"<div>We discuss the kinetic theory of stellar systems and two-dimensional vortices and stress their analogies. We recall the derivation of the Landau and Lenard–Balescu equations from the Klimontovich formalism. These equations take into account two-body correlations and are valid at the order 1/N, where N is the number of particles in the system. They have the structure of a Fokker–Planck equation involving a diffusion term and a drift term. The systematic drift of a vortex is the counterpart of the dynamical friction experienced by a star. At equilibrium, the diffusion and the drift terms balance each other establishing the Boltzmann distribution of statistical mechanics. We discuss the problem of kinetic blocking in certain cases and how it can be solved at the order (1/N^2) by the consideration of three-body correlations. We also consider the behaviour of the system close to the critical point following a recent suggestion by Hamilton and Heinemann (2023). We present a simple calculation, valid for spatially homogeneous systems with long-range interactions described by the Cauchy distribution, showing how the consideration of the Landau modes regularizes the divergence of the friction by polarization at the critical point. We mention, however, that fluctuations may be very important close to the critical point and that deterministic kinetic equations for the mean distribution function (such as the Landau and Lenard–Balescu equations) should be replaced by stochastic kinetic equations.</div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 12","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjp/s13360-024-05797-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Generalized Formulation of Dynamics and Constraints in the Phase Space-Time

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-12-24 DOI: 10.1007/s10773-024-05868-5

Mohammad Khorrami

{"title":"A Generalized Formulation of Dynamics and Constraints in the Phase Space-Time","authors":"Mohammad Khorrami","doi":"10.1007/s10773-024-05868-5","DOIUrl":"10.1007/s10773-024-05868-5","url":null,"abstract":"<div>A reformulation is introduced for the dynamics on the phase space-time (the phase space extended to contain the time and its conjugate momentum), in which the dynamics is characterized by a constraint hyper-surface in the phase space-time, rather than a Hamiltonian on the phase space (or extended phase space, the phase space and the time). In the case that the constraint hyper-surface is constructed by a Hamiltonian on the extended phase space, the reformulation produces the same result of the conventional Hamiltonian dynamics, as expected. But the reformation allows for more general cases, where the constraint is a relation between the phase space-time coordinates: an implicit rather that an explicit Hamiltonian. In this reformulation, there is no fundamental difference between constraints and dynamics: additional constraints just restrict the phase space-time further, decreasing the dimension of the restricted manifold. The setup for dynamics and constraints is introduced. Different cases are discussed, regarding the existence and uniqueness of the solution to the initial value problem: no solution, a unique solution, more than one solutions. Some examples are studied in detail. A comparison (correspondence) with the conventional setup is also presented.</div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 12","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical hybrid devices for energy storage and dopamine detection using TMS@CNTs nanocomposite electrodes at different temperatures of electrolyte

IF 2.8 4区工程技术

Journal of Materials Science: Materials in Electronics Pub Date : 2024-12-24 DOI: 10.1007/s10854-024-14087-x

Nimra Muzaffar, Amir Muhammad Afzal, Muhammad Waqas Iqbal, Muhammad Imran, Mohammad Abul Farah, Mohammad Ajmal Ali, Sohail Mumtaz, Iqra Muzaffar, Shaik Abdul Munnaf, Vijayalaxmi Mishra, Abhinav Kumar

{"title":"Electrochemical hybrid devices for energy storage and dopamine detection using TMS@CNTs nanocomposite electrodes at different temperatures of electrolyte","authors":"Nimra Muzaffar, Amir Muhammad Afzal, Muhammad Waqas Iqbal, Muhammad Imran, Mohammad Abul Farah, Mohammad Ajmal Ali, Sohail Mumtaz, Iqra Muzaffar, Shaik Abdul Munnaf, Vijayalaxmi Mishra, Abhinav Kumar","doi":"10.1007/s10854-024-14087-x","DOIUrl":"10.1007/s10854-024-14087-x","url":null,"abstract":"<div>Dopamine, an imperative brain chemical belong to an organic chemical of the catecholamine and phenethylamine families, is essential for a healthy and happy life. The occurrence of a typical dopamine release is associated with several neurological disorders as well as depressive conditions. Hence, it is essential to conduct real-time in vivo monitoring of DA levels in order to comprehend its physiological functions comprehensively. Herein, the hydrothermal procedure is employed for the preparation of cobalt niobium sulfide (CoNbS). The unique nanostructure of the composite electrode material (CoNbS/CNT) fabricated in this work offers channels for ion mobilization and leads to exceptional electrochemical parameters. The electrode is also measured at different temperatures to get the optimum values. The specific capacity (Qs) of the CoNbS/CNT is calculated 700 Cg−1 at 3 mVs−1, which is comparatively superior to the undoped material. Furthermore, the asymmetric supercapacitor device is successfully fabricated, attaining a remarkable Qs of 183.2 Cg−1 at 3 mVs−1, surpassing previously recorded values. The gadget yielded an exceptional energy density (Ed) of 75 Whkg⁻1 and a notable power density (Pd) of 800 Wkg⁻1. Moreover, the device achieved an outstanding columbic efficiency (CE) of 86%. Additionally, the sensor reliably delivers responses for dopamine (DA) in human serum, sustaining an accurate range of 101.8% to 103.2%. The multifunctional CoNbS/CNT nanocomposite electrode material presents novel prospects for the design of hybrid devices in energy harvesting and biomedical applications.</div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: 4,5-Dimethoxycanthin-6-one Inhibits Glioblastoma Stem Cell and Tumor Growth by Inhibiting TSPAN1 Interaction with TM4SF1

IF 3.7 3区医学

Neurochemical Research Pub Date : 2024-12-24 DOI: 10.1007/s11064-024-04313-7

Wei Li, Li-jian Yang, Yuan-yuan Xiong, Zeng-shi Li, Xi Li, Yi Wen

引用次数: 0