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2,717 results on '"WU Yusheng"'

1. Mechanical alloying of bronze with aluminum and nickel: Impact on corrosion resistance and hardness

Author

Qanita Tayyaba, Adnan Qayyum Butt, Tayyab Ali khan, Zeeshan Nazar, Abdul Rehman, and Wu Yusheng

Subjects
Bronze, Corrosion, Polarization, Potentiodynamic, Hardness, Mining engineering. Metallurgy, TN1-997
Abstract

The effect of alloying bronze with aluminum (Al) and nickel (Ni) on hardness and corrosion resistance is examined in this work. Bronze alloys were manufactured in vacuum induction melting (VIM) using 99.9 % pure copper as the main component. High-purity tin, aluminum, and nickel were added. This study examined the corrosion behavior of an Al and Ni-modified bronze alloy in a 3.5 % NaCl solution using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). The corrosion resistance of the alloys was assessed, with findings indicating that Ni-bronze had the best corrosion resistance—nearly twice as much as bronze. Microstructural examinations and Rockwell hardness testing further revealed that nickel-bronze had the highest hardness values, owing to strong nickel intermetallic phases formed. This thorough analysis highlights how Ni-bronze alloys perform better in challenging conditions, which qualifies them for uses needing strong mechanical durability and resistance to corrosion.

Published
2024
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2. Domestic Application Status of Downhole Corrosion Inspection and Monitoring Technique in Oil and Gas Wells

Author

WU Yusheng, FENG Qiang, REN Jian, WANG Jianming, HE Sha, ZHAO Yanfeng, DENG Weilin, GE Kaiqi, YANG Yunhao

Subjects
downhole, corrosion, inspection technique, monitoring technique, Materials of engineering and construction. Mechanics of materials, TA401-492, Technology
Abstract

In order to find corrosion and other defects of downhole tubing as early as possible in oil and gas production，and to ensure safe and efficient production of oil and gas，the article gave an overview of existing downhole corrosion inspection techniques and monitoring techniques for oil and gas wells both domestically and internationally.The application of the above techniques in domestic oil and gas fields were analyzed，and the prospects for the development of related techniques were putted forward.Furthermore，it was considered that improving the reliability and adaptability of the technology and equipment and achieving online monitoring and real-time monitoring were very important directions of researches.

Published
2024
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3. Quantum Frontiers in High Energy Physics

Author

Fang, Yaquan, Gao, Christina, Li, Ying-Ying, Shu, Jing, Wu, Yusheng, Xing, Hongxi, Xu, Bin, Xu, Lailin, and Zhou, Chen

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment, High Energy Physics - Lattice, Quantum Physics
Abstract

Numerous challenges persist in High Energy Physics (HEP), the addressing of which requires advancements in detection technology, computational methods, data analysis frameworks, and phenomenological designs. We provide a concise yet comprehensive overview of recent progress across these areas, in line with advances in quantum technology. We will discuss the potential of quantum devices in detecting subtle effects indicative of new physics beyond the Standard Model, the transformative role of quantum algorithms and large-scale quantum computers in studying real-time non-perturbative dynamics in the early universe and at colliders, as well as in analyzing complex HEP data. Additionally, we emphasize the importance of integrating quantum properties into HEP experiments to test quantum mechanics at unprecedented high-energy scales and search for hints of new physics. Looking ahead, the continued integration of resources to fully harness these evolving technologies will enhance our efforts to deepen our understanding of the fundamental laws of nature., Comment: 27 pages, 7 figures

Published
2024

4. SCEP: a Cosmic Magnetic Monopole Search Experiment

Author

Ye, Changqing, Liu, Beige, Cao, Zhe, Han, Lingzhi, Huang, Xinming, Jiang, Min, Liu, Dong, Lin, Qing, Wan, Shitian, Wu, Yusheng, Zhao, Lei, Zhang, Yue, Peng, Xinhua, and Zhao, Zhengguo

Subjects
High Energy Physics - Experiment, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Magnetic monopole is a well-motivated class of beyond-Standard-Model particles that could provide insights into the long-standing puzzle of the quantization of electric charge. These hypothetical particles are likely to be super heavy ($\sim$10$^{15}$ GeV) and be produced in the very early stages of the Universe's evolution. We propose a novel detection scenario for the search of such cosmic magnetic monopoles, utilizing a hybrid approach that combines radio-frequency atomic magnetometers and plastic scintillators. Such setup allows for the collection of both the induction and scintillation signals generated by the passage of a magnetic monopole, which provides acceptance to the magnetic monopoles with their velocities larger than about 10$^{-6}$ light speed (assuming a signal-to-noise ratio of $\sim$4) and their masses larger than approximately 10$^7$ GeV (at $\beta\sim10^{-3}$). The proposed detector design has the potential to scale up to large area, enabling the exploration of the parameter space of the cosmic magnetic monopole beyond the current experimental and astrophysical constraints. It is estimated that such detector can reach current most stringent limits of the flux set by previous searches, with a signal-to-noise ratio of the induction signal larger than about 4.5, assuming an effective exposure being 20000 year$\cdot$m$^2$ and coil layer of 3.

Published
2024

9. From Authority-Respect to Grassroots-Dissent: Degree-Weighted Social Learning and Convergence Speed

Author

Cheng, Chen, Han, Xiao, Tong, Xin, Wu, Yusheng, and Xing, Yiqing

Subjects
Economics - Theoretical Economics
Abstract

Opinions are influenced by neighbors, with varying degrees of emphasis based on their connections. Some may value more connected neighbors' views due to authority respect, while others might lean towards grassroots perspectives. The emergence of ChatGPT could signify a new ``opinion leader'' whose views people put a lot of weight on. This study introduces a degree-weighted DeGroot learning model to examine the effects of such belief updates on learning outcomes, especially the speed of belief convergence. We find that greater respect for authority doesn't guarantee faster convergence. The influence of authority respect is non-monotonic. The convergence speed, influenced by increased authority-respect or grassroots dissent, hinges on the unity of elite and grassroots factions. This research sheds light on the growing skepticism towards public figures and the ensuing dissonance in public debate.

Published
2023

36. Diboson productions and aTGCs search at LHC

Author

Wu Yusheng

Subjects
Physics, QC1-999
Abstract

The ATLAS and CMS collaborations have measured the production cross-sections of dibosons (WW, WZ, ZZ, Wγ, Zγ) in leptonic decay final states with collision data produced at the LHC with both √s = 7 TeV and √s = 8 TeV. Based on these data, limits on anomalous triple-gauge-couplings are also derived.

Published
2013
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44. Publisher Correction: Ozone pollution mitigation strategy informed by long-term trends of atmospheric oxidation capacity

Author

Wang, Wenjie, Li, Xin, Cheng, Yafang, Parrish, David D., Ni, Ruijing, Tan, Zhaofeng, Liu, Ying, Lu, Sihua, Wu, Yusheng, Chen, Shiyi, Lu, Keding, Hu, Min, Zeng, Limin, Shao, Min, Huang, Cheng, Tian, Xudong, Leung, K. M., Chen, Liangfu, Fan, Meng, Zhang, Qiang, Rohrer, Franz, Wahner, Andreas, Pöschl, Ulrich, Su, Hang, and Zhang, Yuanhang

Published
2024
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45. The gas-phase formation mechanism of iodic acid as an atmospheric aerosol source

Author

Finkenzeller, Henning, Iyer, Siddharth, He, Xu-Cheng, Simon, Mario, Koenig, Theodore K., Lee, Christopher F., Valiev, Rashid, Hofbauer, Victoria, Amorim, Antonio, Baalbaki, Rima, Baccarini, Andrea, Beck, Lisa, Bell, David M., Caudillo, Lucía, Chen, Dexian, Chiu, Randall, Chu, Biwu, Dada, Lubna, Duplissy, Jonathan, Heinritzi, Martin, Kemppainen, Deniz, Kim, Changhyuk, Krechmer, Jordan, Kürten, Andreas, Kvashnin, Alexandr, Lamkaddam, Houssni, Lee, Chuan Ping, Lehtipalo, Katrianne, Li, Zijun, Makhmutov, Vladimir, Manninen, Hanna E., Marie, Guillaume, Marten, Ruby, Mauldin, Roy L., Mentler, Bernhard, Müller, Tatjana, Petäjä, Tuukka, Philippov, Maxim, Ranjithkumar, Ananth, Rörup, Birte, Shen, Jiali, Stolzenburg, Dominik, Tauber, Christian, Tham, Yee Jun, Tomé, António, Vazquez-Pufleau, Miguel, Wagner, Andrea C., Wang, Dongyu S., Wang, Mingyi, Wang, Yonghong, Weber, Stefan K., Nie, Wei, Wu, Yusheng, Xiao, Mao, Ye, Qing, Zauner-Wieczorek, Marcel, Hansel, Armin, Baltensperger, Urs, Brioude, Jérome, Curtius, Joachim, Donahue, Neil M., Haddad, Imad El, Flagan, Richard C., Kulmala, Markku, Kirkby, Jasper, Sipilä, Mikko, Worsnop, Douglas R., Kurten, Theo, Rissanen, Matti, and Volkamer, Rainer

Published
2023
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48. A Method for Arbitrary Instance Style Transfer

Author

Yu, Zhifeng, Wu, Yusheng, and Wang, Tianyou

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

The ability to synthesize style and content of different images to form a visually coherent image holds great promise in various applications such as stylistic painting, design prototyping, image editing, and augmented reality. However, the majority of works in image style transfer have focused on transferring the style of an image to the entirety of another image, and only a very small number of works have experimented on methods to transfer style to an instance of another image. Researchers have proposed methods to circumvent the difficulty of transferring style to an instance in an arbitrary shape. In this paper, we propose a topologically inspired algorithm called Forward Stretching to tackle this problem by transforming an instance into a tensor representation, which allows us to transfer style to this instance itself directly. Forward Stretching maps pixels to specific positions and interpolate values between pixels to transform an instance to a tensor. This algorithm allows us to introduce a method to transfer arbitrary style to an instance in an arbitrary shape. We showcase the results of our method in this paper.

Published
2019

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