Search Results - "Qiu, Junwen"

Observation of Switchable Dual-Conductive Channels and Related Nitric Oxide Gas-Sensing Properties in the N‑rGO/ZnO Heterogeneous Structure by Qiu, Junwen, Hu, Xuefeng, Min, Xinjie, Quan, Wenjing, Tian, Renbin, Ji, Peng, Zheng, Hua, Qin, Weiwei, Wang, Haixin, Pan, Ting, Cheng, Suishi, Chen, Xiaoqiang, Zhang, Wei, Wang, Xiaoru

“…Gas sensors based on hybrid materials of graphene oxide/metal oxide semiconductors are an effective way to improve sensor performance. In this paper, we…”
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A Highly Sensitive and Selective ppb-Level Acetone Sensor Based on a Pt-Doped 3D Porous SnO2 Hierarchical Structure by Quan, Wenjing, Hu, Xuefeng, Min, Xinjie, Qiu, Junwen, Tian, Renbing, Ji, Peng, Qin, Weiwei, Wang, Haixin, Pan, Ting, Cheng, Suishi, Chen, Xiaoqiang, Zhang, Wei, Wang, Xiaoru, Zheng, Hua

“…In view of the low sensitivity, high operating temperature and poor selectivity of acetone measurements, in this paper much effort has been paid to improve the…”
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Realization of vertical metal semiconductor heterostructures via solution phase epitaxy by Wang, Xiaoshan, Wang, Zhiwei, Zhang, Jindong, Wang, Xiang, Zhang, Zhipeng, Wang, Jialiang, Zhu, Zhaohua, Li, Zhuoyao, Liu, Yao, Hu, Xuefeng, Qiu, Junwen, Hu, Guohua, Chen, Bo, Wang, Ning, He, Qiyuan, Chen, Junze, Yan, Jiaxu, Zhang, Wei, Hasan, Tawfique, Li, Shaozhou, Li, Hai, Zhang, Hua, Wang, Qiang, Huang, Xiao, Huang, Wei

“…The creation of crystal phase heterostructures of transition metal chalcogenides, e.g., the 1T/2H heterostructures, has led to the formation of…”
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Highly Selective, ppb-Level Xylene Gas Detection by Sn2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method by Lu, Shaohe, Hu, Xuefeng, Zheng, Hua, Qiu, Junwen, Tian, Renbing, Quan, Wenjing, Min, Xinjie, Ji, Peng, Hu, Yewei, Cheng, Suishi, Du, Wei, Chen, Xiaoqiang, Cui, Beiliang, Wang, Xiaorong, Zhang, Wei

“…Detecting xylene gas is an important means of avoiding human harm from gas poisoning. A precise measurement demands that the gas sensor used must have high…”
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Distributed Random Reshuffling Over Networks by Huang, Kun, Li, Xiao, Milzarek, Andre, Pu, Shi, Qiu, Junwen

“…In this paper, we consider distributed optimization problems where <inline-formula><tex-math notation="LaTeX">n</tex-math></inline-formula> agents, each…”
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Enabling selective, room-temperature gas detection using atomically dispersed Zn by Qiu, Junwen, Hu, Xuefeng, Shi, Li, Fan, Jinle, Min, Xinjie, Zhang, Wei, Wang, Jinlan

“…[Display omitted] •Atomically dispersed zinc anchored with a Zn-NC2 coordination was successfully synthesized, and confirm by HAADF-STEM and XAS.•The…”
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A high power ZnO thin film piezoelectric generator by Qin, Weiwei, Li, Tao, Li, Yutong, Qiu, Junwen, Ma, Xianjun, Chen, Xiaoqiang, Hu, Xuefeng, Zhang, Wei

“…•Fabricated first high power output ZnO thin film generator on a Si substrate by laser ablation.•Characterized the structural and surficial properties of…”
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An ultra-high sensitive ethanol sensor through amending surface-functionalized groups by novel acidic synthesis methods by Min, Xinjie, Qin, Weiwei, Zhang, Xin, Fan, Jinle, Zhu, Xiaolong, Zhu, Yalong, Wang, Xin, Qiu, Junwen, Wang, Yong, Hu, Xuefeng, Wei, Mingjie, Zhang, Wei

“…The surface structure and functional groups of MOS materials play key roles in sensor performance. Herein, we report the first attempt to use four organic…”
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Nitric Oxide Detector Based on WO 3 -1wt%In 2 O 3 -1wt%Nb 2 O 5 with State-of-the-Art Selectivity and ppb-Level Sensitivity by Hu, Yewei, Hu, Xuefeng, Qiu, Junwen, Quan, Wenjing, Qin, Weiwei, Min, Xinjie, Lu, Shaohe, Chen, Suishi, Du, Wei, Chen, Xiaoqiang, Zhang, Wei

“…Fast, sensitive, and precise detection of nitric oxide (NO) is critical to many applications in environmental monitoring and early disease diagnosis via…”
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Nitric Oxide Detector Based on WO3‑1wt%In2O3‑1wt%Nb2O5 with State-of-the-Art Selectivity and ppb-Level Sensitivity by Hu, Yewei, Hu, Xuefeng, Qiu, Junwen, Quan, Wenjing, Qin, Weiwei, Min, Xinjie, Lu, Shaohe, Chen, Suishi, Du, Wei, Chen, Xiaoqiang, Zhang, Wei

“…Fast, sensitive, and precise detection of nitric oxide (NO) is critical to many applications in environmental monitoring and early disease diagnosis via…”
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Random Reshuffling with Momentum for Nonconvex Problems: Iteration Complexity and Last Iterate Convergence by Qiu, Junwen, Milzarek, Andre

“…Random reshuffling with momentum (RRM) corresponds to the SGD optimizer with momentum option enabled, as found in popular machine learning libraries like…”
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Convergence of a Normal Map-based Prox-SGD Method under the KL Inequality by Milzarek, Andre, Qiu, Junwen

“…In this paper, we present a novel stochastic normal map-based algorithm ($\mathsf{norM}\text{-}\mathsf{SGD}$) for nonconvex composite-type optimization…”
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Definition measurement unit with flexure hinges for a wind tunnel balance by Wang Tianhao, Qiu Junwen, Liu Xihe

“…A definition measurement unit with flexure hinges, which will usually be applied as the main focus was directed on the measurement of definite forces, has been…”
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A Highly Sensitive and Selective ppb-Level Acetone Sensor Based on a Pt-Doped 3D Porous SnO 2 Hierarchical Structure by Quan, Wenjing, Hu, Xuefeng, Min, Xinjie, Qiu, Junwen, Tian, Renbing, Ji, Peng, Qin, Weiwei, Wang, Haixin, Pan, Ting, Cheng, Suishi, Chen, Xiaoqiang, Zhang, Wei, Wang, Xiaorong, Zheng, Hua

“…In view of the low sensitivity, high operating temperature and poor selectivity of acetone measurements, in this paper much effort has been paid to improve the…”
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Convergence of SGD with momentum in the nonconvex case: A time window-based analysis by Qiu, Junwen, Ma, Bohao, Milzarek, Andre

“…We propose a novel time window-based analysis technique to investigate the convergence properties of the stochastic gradient descent method with momentum…”
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A New Random Reshuffling Method for Nonsmooth Nonconvex Finite-sum Optimization by Qiu, Junwen, Li, Xiao, Milzarek, Andre

“…Random reshuffling techniques are prevalent in large-scale applications, such as training neural networks. While the convergence and acceleration effects of…”
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Highly Selective, ppb-Level Xylene Gas Detection by Sn 2+ -Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method by Lu, Shaohe, Hu, Xuefeng, Zheng, Hua, Qiu, Junwen, Tian, Renbing, Quan, Wenjing, Min, Xinjie, Ji, Peng, Hu, Yewei, Cheng, Suishi, Du, Wei, Chen, Xiaoqiang, Cui, Beiliang, Wang, Xiaorong, Zhang, Wei

“…Detecting xylene gas is an important means of avoiding human harm from gas poisoning. A precise measurement demands that the gas sensor used must have high…”
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A Generalized Version of Chung's Lemma and its Applications by Jiang, Li, Li, Xiao, Milzarek, Andre, Qiu, Junwen

“…Chung's lemma is a classical tool for establishing asymptotic convergence rates of (stochastic) optimization methods under strong convexity-type assumptions…”
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A KL-based Analysis Framework with Applications to Non-Descent Optimization Methods by Qiu, Junwen, Ma, Bohao, Li, Xiao, Milzarek, Andre

“…We propose a novel analysis framework for non-descent-type optimization methodologies in nonconvex scenarios based on the Kurdyka-Lojasiewicz property. Our…”
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Convergence of Random Reshuffling Under The Kurdyka-{\L}ojasiewicz Inequality by Li, Xiao, Milzarek, Andre, Qiu, Junwen

“…We study the random reshuffling (RR) method for smooth nonconvex optimization problems with a finite-sum structure. Though this method is widely utilized in…”
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