Autor: He, Yan - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The circadian clock influences T cell responses to vaccination by regulating dendritic cell antigen processing
Autorzy:: Wilk, Mieszko
Early, James O.
Klavina, Paula A.
Cervantes-Silva, Mariana P.
Payet, Cloe A.
Carroll, Richard G.
Sánchez-García, F. Javier
He, Yan
Fagan, Lauren E.
Moreira, Diana
Hurley, Jennifer M.
Finlay, David K.
Cox, Shannon L.
Schoen, Ingmar
Timmons, George A.
McGinley, Alan
Buel, Sharleen M.
O’Siorain, James R.
Drewinski, Tabea
Preston, Roger J. S.
Curtis, Annie M.
Mills, Kingston H. G.
Opis:: Dendritic cells play a key role in processing and presenting antigens to naïve T cells to prime adaptive immunity. Circadian rhythms are known to regulate many aspects of immunity; however, the role of circadian rhythms in dendritic cell function is still unclear. Here, we show greater T cell responses when mice are immunised in the middle of their rest versus their active phase. We find a circadian rhythm in antigen processing that correlates with rhythms in both mitochondrial morphology and metabolism, dependent on the molecular clock gene, Bmal1. Using Mdivi-1, a compound that promotes mitochondrial fusion, we are able to rescue the circadian deficit in antigen processing and mechanistically link mitochondrial morphology and antigen processing. Furthermore, we find that circadian changes in mitochondrial $Ca^{2+}$ are central to the circadian regulation of antigen processing. Our results indicate that rhythmic changes in mitochondrial calcium, which are associated with changes in mitochondrial morphology, regulate antigen processing.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 2.

Tytuł:: Transmission stability of chirped dark vector quasi-solitons in birefringent fiber system with nonlinear gain
Autorzy:: Xiao, Yan
Zhang, Jing
He, Qi
Tematy:: chirped dark vector quasi-soliton
coupled Ginzburg-Landau equation
birefringent fiber; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/1835764.pdf Link otwiera się w nowym oknie
Opis:: In this article, we consider the coupled Ginzburg–Landau equation with variable coefficients including the nonlinear gain and obtain the exact solutions of chirped dark vector quasi-solitons via the ansatz method. Next, the propagation of chirped dark vector quasi-solitons is discussed to verify whether they can be transmitted stably in the birefringent optical fiber system. The numerical simulation shows that this can be achieved. We deeply add the small perturbation to the transmission of dark vector quasi-solitons to make the results above more general. The results further prove the correctness of our solutions.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Design of Warp-Knitted Single/Double Jacquard Fabric for Shoe Vamp
Autorzy:: Chen, Mengjia
He, Kejie
Zhang, Yan
Wydawca:: Sciendo
Cytata wydawnicza:: He, K., Zhang, Y. & Chen, M. Design of Warp-Knitted Single/Double Jacquard Fabric for Shoe Vamp. Fibres & Textiles in Eastern Europe, 2024, Sciendo, vol. 32 no. 3, pp. 40-49. https://doi.org/10.2478/ftee-2024-0024
Opis:: In order to address the problem of the scarce stitch and color of conventional warp-knitted jacquard fabric, this paper puts forward a method of knitting single/double jacquard shoe vamp fabric with a multiple pattern and color on a high-speed warp knitting jacquard machine. In electronic jacquard systems, lateral movements of jacquard bars, relative to the needle bar, combined with controlled stitch structure and displacement data, facilitate the formation of loop and double loop stitches. And two split jacquard bars in half-gauge in odd and even wales can be threaded in yarns with different colors or varied dyeing performances, then the two-color jacquard effect can be obtained combined with stitch structure design. Taking the specific process as an example, this paper introduces a process design method for single/double jacquard shoe vamp materials, including raw material selection, stitch design, jacquard design, process parameter design, textile finishing design, et al., which can provide a theoretical foundation for the design and development of other warp-knitted jacquard fabrics.
Dostawca treści:: Repozytorium Centrum Otwartej Nauki

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Skocz do pozycji: 4.

Tytuł:: A Honeycomb Based Graded Metamaterial Muffler with Broadband Sound Attenuation and Load Bearing Performances
Autorzy:: Li, Gen
Chen, Yan
He, Huan
Tematy:: acoustic metamaterials
honeycomb structure
phononic crystal
local resonance; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2141654.pdf Link otwiera się w nowym oknie
Opis:: A challenge for developing acoustic metamaterials (AMMs) is considering the application of broadband muffling and load bearing capacity simultaneously. In this paper, a honeycomb based graded AMM muffler is proposed, which can widen the attenuation band and improve the structural stiffness without any external device by means of integrated design. Firstly, the acoustic and mechanical characteristics of the muffler unit cell are theoretically and numerically studied, and the graded muffler is designed based on these characteristics. The numerical results show that the graded muffler widens the attenuation bandwidth of the unit cell, and the simulation also shows that the graded muffler has greater stiffness than the uniform one. The stiffness driven muffler provides new possibilities for the design of advanced metamaterial with simultaneous sound insulation and load bearing performances.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Design of Warp-Knitted Single/Double Jacquard Fabric for Shoe Vamp
Autorzy:: He, Kejie
Zhang, Yan
Chen, Mengjia
Tematy:: warp knitting
jacquard
shoe vamp
design
knitting process; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Powiązania:: https://bibliotekanauki.pl/articles/59115098.pdf Link otwiera się w nowym oknie
Opis:: In order to address the problem of the scarce stitch and color of conventional warp-knitted jacquard fabric, this paper puts forward a method of knitting single/double jacquard shoe vamp fabric with a multiple pattern and color on a high-speed warp knitting jacquard machine. In electronic jacquard systems, lateral movements of jacquard bars, relative to the needle bar, combined with controlled stitch structure and displacement data, facilitate the formation of loop and double loop stitches. And two split jacquard bars in half-gauge in odd and even wales can be threaded in yarns with different colors or varied dyeing performances, then the two-color jacquard effect can be obtained combined with stitch structure design. Taking the specific process as an example, this paper introduces a process design method for single/double jacquard shoe vamp materials, including raw material selection, stitch design, jacquard design, process parameter design, textile finishing design, et al., which can provide a theoretical foundation for the design and development of other warp-knitted jacquard fabrics.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: An approach to suppress low-frequency oscillation in the hybrid multi-Infeed HVDC of mixed H2/H∞ robust-based control theory
Autorzy:: Li, Congshan
Liu, Yan
Li, Yikai
He, Ping
Fang, Yan
Sheng, Tingyu
Tematy:: additional damping controller
CSP
HMIDC
LFO
mixed 2/∞ control
TLS-ESPRIT; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2042784.pdf Link otwiera się w nowym oknie
Opis:: A hybrid multi-infeed HVDC (HMIDC) system is composed of line-commutated converter-based high-voltage direct current (LCC-HVDC) and voltage-source converterbased high-voltage direct current (VSC-HVDC), whose receiving ends have electrical coupling. To solve the problem of low-frequency oscillation (LFO) caused by insufficient damping in the HMIDC system, according to the multi-objective mixed 2/∞ output feedback control theory with regional pole assignment, an additional robust damping controller is designed in this paper, which not only has good robustness, but also has strong adaptability to the change of system operation mode. In the paper, the related oscillation modes and transfer function of the controlled plant are obtained, which are identified by the total least squares estimation of signal parameters via rotary invariance technology (TLS-ESPRIT). In addition, the control-sensitive point (CSP) for suppressing LFO based on the small disturbance test method is determined, which is suitable for determining the installation position of the controller. The results show that the control sensitivity factor of VSC-HVDC is greater than that of LCC-HVDC so that adding an additional damping controller to VSC-HVDC is better than LCC-HVDC in suppressing the LFO of HMIDC. Finally, a hybrid double infeed DC transmission system with three receiving terminals is built on PSCAD/EMTDC where the time-domain simulations are performed to verify the correctness of the CSP selection and the effectiveness of the controller.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis of socio-economic spatial structure of urban agglomeration in China based on spatial gradient and clustering
Autorzy:: He, Li
Tao, Jian’ge
Meng, Ping
Chen, Dan
Yan, Meng
Vasa, László
Tematy:: economic and social development
urban agglomeration
Central Plains Urban Agglomeration (CPUA)
clustering
spatial gradient; Pokaż więcej
Wydawca:: Instytut Badań Gospodarczych
Powiązania:: https://bibliotekanauki.pl/articles/19233717.pdf Link otwiera się w nowym oknie
Opis:: Research background: Previous studies on the economic and social development of urban agglomerations mostly focus on a single primacy comparative analysis and efficiency evaluation. Spatial structure differentiation is an important feature of urban agglomeration. The lack of economic and social analysis on the spatial structure makes it impossible to determine the development positioning of each city in the urban agglomeration, which affects the sustainable economic development ability of these areas. Purpose of the article: The objective of the article is to analyze the spatial development law and experience of urban agglomeration, this study explores the practice of economic and population spatial structure of city areas in China. For this purpose, CPUA and its central city Zhengzhou was taken as an example, the spatial gradient structure of example was analyzed. Methods: Using economic and population data of 32 cities in this region, growth pole theory, and pole-axis theory, the economic and population spatial structure of urban agglomeration, the spatial gradient structure of central cities in urban agglomerations were analyzed with the method of cluster about radiation index. Findings & value added: (1) In the process of the formation of CPUA, the geo-graphical spatial pattern plays a decisive role in economic and social development. This is an experience from developing countries. (2) CPUA presents a gradient development pattern with Zhengzhou as the center, and economic and social development gradually radiates to the metropolitan area, the core development area, and the character development demonstration area. (3) The economic and social gradients of Zhengzhou, the central city, present the hierarchy rules and characteristics which are driven by the Beijing-Guangzhou-Railway axis and the Longhai-Railway axis. (4) The central city of Zhengzhou still presents insufficient primacy in regional development, which shows that Zhengzhou accounts for 6% of the population of the Central Plains Economic Zone and 14% of GDP, and insufficient agglomeration. Different countries at different stages of economic development have different urban agglomeration development models. The conclusions from China provide new decision-making ideas and methods for spatial structure research and development strategy analysis of urban agglomerations.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Generalized route planning approach for hazardous materials transportation with equity consideration
Autorzy:: Chai, H.
He, R.-C.
Jia, X.-yan
Ma, Ch.-x
Dai, C.-jie
Tematy:: hazardous materials transportation
transportation
route optimization
risk equity
multi-objective optimization
NSGA-II algorithm
genetic algorithm
transport materiałów niebezpiecznych
materiały niebezpieczne
optymalizacja trasy
kapitał własny
optymalizacja wielokryterialna
algorytm NSGA-II
algorytm genetyczny; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/223759.pdf Link otwiera się w nowym oknie
Opis:: Hazardous materials transportation should consider risk equity and transportation risk and cost. In the hazardous materials transportation process, we consider risk equity as an important condition in optimizing vehicle routing for the long-term transport of hazardous materials between single or multiple origin-destination pairs (O-D) to reduce the distribution difference of hazardous materials transportation risk over populated areas. First, a risk equity evaluation scheme is proposed to reflect the risk difference among the areas. The evaluation scheme uses standard deviation to measure the risk differences among populated areas. Second, a risk distribution equity model is proposed to decrease the risk difference among populated areas by adjusting the path frequency between O-D pairs for hazardous materials transportation. The model is converted into two sub models to facilitate decision-making, and an algorithm is provided for each sub model. Finally, we design a numerical example to verify the accuracy and rationality of the model and algorithm. The numerical example shows that the proposed model is essential and feasible for reducing the complexity and increasing the portability of the transportation process.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Effectiveness of fly ash on the stabilization/solidification of Zn-contaminated soil
Autorzy:: Chen, Yan
Zhu, Shengyuan
Fang, Wei
Huang, He
Qin, Hao
Hu, Shengtao
Wu, Yuzhao
Tematy:: fly ash
soil
heavy metals
X-ray diffraction
Zn2+
popiół lotny
gleba
metale ciężkie
dyfrakcja rentgenowska; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/27323977.pdf Link otwiera się w nowym oknie
Opis:: As a solid waste, the associated disposal cost of fly ash is really high. Previous studies suggested that the utilization of fly ash to treat heavy metal-contaminated soils was a new cost-effective method of disposal of it. Therefore, the effectiveness of fly ash stabilized/solidified Zn-contaminated soils has been investigated by unconfined compressive strength (UCS) and toxicity characteristics leaching procedure (TCLP) tests. Quantitative analysis of the soil microstructure was conducted by processing the X-ray diffraction (XRD) and scanning electron microscope (SEM) images. Mercury intrusion porosimetry (MIP) was carried out to illustrate the size and proportion of pore size for specimens under different ratios. The results of the tests showed an improvement in the UCS, which further increased as the content of binders was raised. Binder content would have little influence on the development of strength if the binder content exceeds a threshold value. The leached Zn2+ concentration of stabilized specimens was significantly decreased compared to that of untreated. Quantitative analysis confirmed that the addition of the binders resulted in the amount of hydration product, reduction of porosity, and a really random pores orientation, which was responsible for the improvement of the strength and leaching properties of the Zn2+ contaminated soils.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Comprehensive Analysis of Metal Deformation Law Based on Numerical Simulation of Cold Rolling Process
Autorzy:: Yan, Zhu-Wen
Wang, Bao-Sheng
Bu, He-Nan
Li, Hao
Hong, Lei
Zhang, Dian-Hua
Tematy:: 3D elastic-plastic FEM
work roll deflection
lateral thickness
flatness regulation effect
rolling pressure; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2106570.pdf Link otwiera się w nowym oknie
Opis:: Through taking the cold rolling process as the research object, the three-dimensional finite element model of the strip rolling process is established by using ANSYS/LS-DYNA software. The actual rolling product data has strong consistency with the finite element simulation results. The rolling process is dynamically simulated, and the distribution curves of important rolling parameters such as equivalent stress, control efficiency coefficient, transverse rolling pressure, lateral thickness and work roll deflection is obtained. Based on summarizing the influence of rolling parameters on rolling deformation, the research results of this paper can play an important role in the actual rolling process control. The research results have certain guiding significance for the development and optimization of the rolling control system.
Dostawca treści:: Biblioteka Nauki

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