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  1. Article ; Online: Advancing Non-profit Organizations Through Technology and Informatization An analysis on improving the underdeveloped animal shelters and rescues industry

    Zhang Tianyu

    E3S Web of Conferences, Vol 218, p

    2020  Volume 01047

    Abstract: The situation at big for shelter animals in the US is improving. However, these animal shelters and rescues are overcrowded, and many animals get sick because of the unqualified hygiene conditions. The barriers that hinder the development of the non- ... ...

    Abstract The situation at big for shelter animals in the US is improving. However, these animal shelters and rescues are overcrowded, and many animals get sick because of the unqualified hygiene conditions. The barriers that hinder the development of the non-profit industry of animal shelters and rescues are organization nature as non-profits, funding insufficiency, and lack of public relations strategies. Through technology, animal shelters and rescues can diversify their funding and adoption channels and actively raise awareness of animal protection among the public, leading to increasing motivation of adopting animals. This paper strives to present possible solutions and improvements through technology and informatization for the animal shelters and rescues industry.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article: Recent advances in heterogeneous catalysis for the nonoxidative conversion of methane.

    Zhang, Tianyu

    Chemical science

    2021  Volume 12, Issue 38, Page(s) 12529–12545

    Abstract: The direct conversion of methane to high-value chemicals is an attractive process that efficiently uses abundant natural/shale gas to provide an energy supply. The direct conversion of methane to high-value chemicals is an attractive process that ... ...

    Abstract The direct conversion of methane to high-value chemicals is an attractive process that efficiently uses abundant natural/shale gas to provide an energy supply. The direct conversion of methane to high-value chemicals is an attractive process that efficiently uses abundant natural/shale gas to provide an energy supply. Among all the routes used for methane transformation, nonoxidative conversion of methane is noteworthy owing to its highly economic selectivity to bulk chemicals such as aromatics and olefins. Innovations in catalysts for selective C-H activation and controllable C-C coupling thus play a key role in this process and have been intensively investigated in recent years. In this review, we briefly summarize the recent advances in conventional metal/zeolite catalysts in the nonoxidative coupling of methane to aromatics, as well as the newly emerging single-atom based catalysts for the conversion of methane to olefins. The emphasis is primarily the experimental findings and the theoretical understanding of the active sites and reaction mechanisms. We also present our perspectives on the design of catalysts for C-H activation and C-C coupling of methane, to shed some light on improving the potential industrial applications of the nonoxidative conversion of methane into chemicals.
    Language English
    Publishing date 2021-09-22
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d1sc02105b
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Contrast-enhanced mammography: better with AI?

    Zhang, Tianyu / Mann, Ritse M

    European radiology

    2023  Volume 34, Issue 2, Page(s) 914–916

    MeSH term(s) Humans ; Female ; Breast Neoplasms/diagnostic imaging ; Mammography ; Neural Networks, Computer
    Language English
    Publishing date 2023-09-04
    Publishing country Germany
    Document type Editorial ; Comment
    ZDB-ID 1085366-2
    ISSN 1432-1084 ; 0938-7994 ; 1613-3749
    ISSN (online) 1432-1084
    ISSN 0938-7994 ; 1613-3749
    DOI 10.1007/s00330-023-10190-5
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  4. Article ; Online: [Research Progress on Tumor Metabolic Biomarkers in Liquid Biopsy of Lung Cancer].

    Zou, Shishi / Li, Ning / Zhang, Tianyu / Geng, Qing

    Zhongguo fei ai za zhi = Chinese journal of lung cancer

    2024  Volume 27, Issue 2, Page(s) 126–132

    Abstract: Liquid biopsy is gradually being applied in the clinical diagnosis and treatment of lung cancer. At present, with the development of metabolomics, more and more metabolic biomarkers are considered as potential sensitive markers reflecting the occurrence ... ...

    Abstract Liquid biopsy is gradually being applied in the clinical diagnosis and treatment of lung cancer. At present, with the development of metabolomics, more and more metabolic biomarkers are considered as potential sensitive markers reflecting the occurrence and development of tumors. This article summarizes the changes in the main metabolic pathways of lung cancer, including glucose metabolism, amino acid metabolism, lipid metabolism, sphingolipid metabolism, glycerophospholipid metabolism, and purine metabolism. Meanwhile, this article reviews the role of metabolic biomarkers in the early diagnosis of lung cancer, predicting disease progression, and evaluating the efficacy of chemotherapy and immunotherapy, aiming to provide effective biomarkers for tumor diagnosis and treatment.
.
    MeSH term(s) Humans ; Biomarkers, Tumor/metabolism ; Lung Neoplasms/diagnosis ; Lung Neoplasms/metabolism ; Metabolomics ; Metabolic Networks and Pathways ; Liquid Biopsy
    Chemical Substances Biomarkers, Tumor
    Language Chinese
    Publishing date 2024-03-07
    Publishing country China
    Document type Review ; English Abstract ; Journal Article
    ZDB-ID 2438672-8
    ISSN 1999-6187 ; 1009-3419
    ISSN (online) 1999-6187
    ISSN 1009-3419
    DOI 10.3779/j.issn.1009-3419.2023.106.29
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  5. Article ; Online: Genetics and Epigenetics in the Genesis and Development of Microtia.

    Chen, Xin / Ma, Jing / Zhang, Tianyu

    The Journal of craniofacial surgery

    2024  

    Abstract: Microtia is a congenital malformation of the external and middle ear associated with varying degrees of severity that range from mild structural abnormalities to the absence of the external ear and auditory canal. Globally, it is the second most common ... ...

    Abstract Microtia is a congenital malformation of the external and middle ear associated with varying degrees of severity that range from mild structural abnormalities to the absence of the external ear and auditory canal. Globally, it is the second most common congenital craniofacial malformation and is typically caused by inherited defects, external factors, or the interaction between genes and external factors. Epigenetics notably represents a bridge between genetics and the environment. This review has devoted attention to the current proceedings of the genetics and epigenetics of microtia and related syndromes.
    Language English
    Publishing date 2024-02-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1159501-2
    ISSN 1536-3732 ; 1049-2275
    ISSN (online) 1536-3732
    ISSN 1049-2275
    DOI 10.1097/SCS.0000000000010004
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3761: Show issues Location:
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    Zs.MO 175: Show issues

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  6. Article ; Online: Unitized military logistics system supporting based on standardized trays

    ZHANG Tian-yu, LUO Kai-wen, XIAO Hua, ZHOU Jian

    Zhihui kongzhi yu fangzhen, Vol 45, Iss 1, Pp 41-

    2023  Volume 45

    Abstract: In recent years, unitized logistics is developing rapidly. As a core instrument, standardized pallet is gradually implemented in military logistics and commercial logistics. This paper expounds the concepts of unitized military logistics system and ... ...

    Abstract In recent years, unitized logistics is developing rapidly. As a core instrument, standardized pallet is gradually implemented in military logistics and commercial logistics. This paper expounds the concepts of unitized military logistics system and analyses the key elements. Then it summarizes three fundamental conditions to guarantee the system working fluently and three key problems, basing on the actual situation, about the work efficiency in support operation. Moreover, it analyzes the process of support pattern on three levels, from ‘supplier’, ‘battle warehouse, reserving and supplying base’ and ‘demand forces’ in this system. Finally, this paper analyzes the value from three angles, ‘military’, ‘economy’ and ‘society’, of this system.
    Keywords pallet|standardized|unitized|military logistics|support ; Military Science ; U
    Language Chinese
    Publishing date 2023-02-01T00:00:00Z
    Publisher Editorial Office of Command Control and Simulation
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article: A SIEVE STOCHASTIC GRADIENT DESCENT ESTIMATOR FOR ONLINE NONPARAMETRIC REGRESSION IN SOBOLEV ELLIPSOIDS.

    Zhang, Tianyu / Simon, Noah

    Annals of statistics

    2022  Volume 50, Issue 5, Page(s) 2848–2871

    Abstract: The goal of regression is to recover an unknown underlying function that best links a set of predictors to an outcome from noisy observations. in nonparametric regression, one assumes that the regression function belongs to a pre-specified infinite- ... ...

    Abstract The goal of regression is to recover an unknown underlying function that best links a set of predictors to an outcome from noisy observations. in nonparametric regression, one assumes that the regression function belongs to a pre-specified infinite-dimensional function space (the hypothesis space). in the online setting, when the observations come in a stream, it is computationally-preferable to iteratively update an estimate rather than refitting an entire model repeatedly. inspired by nonparametric sieve estimation and stochastic approximation methods, we propose a sieve stochastic gradient descent estimator (Sieve-SGD) when the hypothesis space is a Sobolev ellipsoid. We show that Sieve-SGD has rate-optimal mean squared error (MSE) under a set of simple and direct conditions. The proposed estimator can be constructed with a low computational (time and space) expense: We also formally show that Sieve-SGD requires almost minimal memory usage among all statistically rate-optimal estimators.
    Language English
    Publishing date 2022-10-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1476670-X
    ISSN 2168-8966 ; 0090-5364
    ISSN (online) 2168-8966
    ISSN 0090-5364
    DOI 10.1214/22-aos2212
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  8. Article ; Online: A novel endoscopic suture strategy using barbed string.

    Zhang, Tianyu / Wang, Dong

    Endoscopy

    2022  Volume 54, Issue S 02, Page(s) E970–E971

    Language English
    Publishing date 2022-07-29
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 80120-3
    ISSN 1438-8812 ; 0013-726X
    ISSN (online) 1438-8812
    ISSN 0013-726X
    DOI 10.1055/a-1883-9943
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 669: Show issues Location:
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    Zs.MO 162: Show issues

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  9. Article: An Online Projection Estimator for Nonparametric Regression in Reproducing Kernel Hilbert Spaces.

    Zhang, Tianyu / Simon, Noah

    Statistica Sinica

    2022  Volume 33, Issue 1, Page(s) 127–148

    Abstract: The goal of nonparametric regression is to recover an underlying regression function from noisy observations, under the assumption that the regression function belongs to a prespecified infinite-dimensional function space. In the online setting, in which ...

    Abstract The goal of nonparametric regression is to recover an underlying regression function from noisy observations, under the assumption that the regression function belongs to a prespecified infinite-dimensional function space. In the online setting, in which the observations come in a stream, it is generally computationally infeasible to refit the whole model repeatedly. As yet, there are no methods that are both computationally efficient and statistically rate optimal. In this paper, we propose an estimator for online nonparametric regression. Notably, our estimator is an empirical risk minimizer in a deterministic linear space, which is quite different from existing methods that use random features and a functional stochastic gradient. Our theoretical analysis shows that this estimator obtains a rate-optimal generalization error when the regression function is known to live in a reproducing kernel Hilbert space. We also show, theoretically and empirically, that the computational cost of our estimator is much lower than that of other rate-optimal estimators proposed for this online setting.
    Language English
    Publishing date 2022-12-26
    Publishing country China (Republic : 1949- )
    Document type Journal Article
    ISSN 1017-0405
    ISSN 1017-0405
    DOI 10.5705/ss.202021.0018
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  10. Article: Understanding surface roughness on vertical surfaces of 316 L stainless steel in laser powder bed fusion additive manufacturing

    Zhang, Tianyu / Yuan, Lang

    Powder technology. 2022 Oct., v. 411

    2022  

    Abstract: Laser powder bed fusion (L-PBF) offers high degrees of freedom to create complex geometries with fine features. Controlling surface roughness is one of the means of improving mechanical and functional properties. This is critical for those surfaces that ... ...

    Abstract Laser powder bed fusion (L-PBF) offers high degrees of freedom to create complex geometries with fine features. Controlling surface roughness is one of the means of improving mechanical and functional properties. This is critical for those surfaces that post-treatments cannot process. This study investigated the effects of a wide range of processing parameters grouped by energy density on surface roughness, particularly at vertical surfaces in L-PBF. The surface arithmetic average roughness, Sa, was measured via confocal microscopy. Scanning electron microscope was used to examine the detailed characteristics and the solidification microstructure on and near surfaces. Increasing laser power and speed under the identical energy density or increasing energy density under the equal speed results in rough vertical surfaces. Solidified melt tracks and partially remelted particles dominate the vertical surface roughness in cases with low energy densities. In contrast, the dross formation contributes to the high vertical surface roughness in cases with high energy densities. By examining the melt pool morphology and the solidification microstructure near the surfaces, the mechanism grounded on a multi-layer melt pool instability is proposed to explain the dominant factors for vertical surfaces. The insights into the formation of key surface characteristics can assist in designing process parameters and generating innovative methods to improve surface roughness.
    Keywords arithmetics ; confocal microscopy ; energy ; energy density ; microstructure ; roughness ; solidification ; stainless steel ; surface roughness ; technology
    Language English
    Dates of publication 2022-10
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 0032-5910
    DOI 10.1016/j.powtec.2022.117957
    Database NAL-Catalogue (AGRICOLA)

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