Revisiting the trading activity of high-frequency trading firms around ultra-fast flash events by Christophe Desagre, Floris Laly, Mikael Petitjean

“…Abstract We investigate high-frequency traders’ behavior in the context of the fastest and most extreme price movements (EPMs) that can be observed in the market, specifically ultra-fast flash events, challenging the methodologies employed in the academic and practitioner literature for identifying sudden liquidity black holes. …”
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Big Five personality dimensions in ultramarathon runners: findings of the Ultrarunners Longitudinal TRAcking (ULTRA) Study by JAMES JASTIFER, Martin Hoffman

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Experimental and simulation investigation of ultrasonic elliptical vibration cutting of tungsten alloys in ultra-precision machining by Sen Yin, Wai Sze Yip, Zhigang Dong, Renke Kang, Suet To

“…Ultrasonic elliptical vibration cutting (UEVC) offers the benefits of extending tool life and enhancing surface finish, enabling ultra-precision machining of hard-brittle tungsten alloys. …”
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Research and application of visual synchronous positioning and mapping technology assisted by ultra wideband positioning technology by Yiran Zhang, Lina Dong

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Research on Effectiveness and Application of Fixed-Plane Perforation Fracturing Technology in Ultra-Low-Permeability Reservoir by Penghui Duan, Xiaofei Wang, Xiaojia Xue, Xiangping Li, Baoqiang Lv, Xiujie Lei, Jun Bu, Haigang Wang

“…Water flooding development of Chang 6 ultra-low-permeability reservoirs in Ansai lasted for more than 30 years; the front of the water drive has swept the reservoir high permeability zone. …”
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Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system by LIU Liang, ZHOU Jun, YE Fan, REN Jun-yan

“…A time-domain CFO and I/Q imbalance estimation and compensation scheme for MB-OFDM based ultra-wideband （UWB） system was proposed. In the scheme, a data-aided CFO estimation algorithm, which was robust to large I/Q imbalance, was presented. …”
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Response of Ultra-Narrow Row Cotton to Telone II in Root-Knot and Reniform Infested Fields by Jim Rich, Robert Kinloch, David Wright

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Ultra‐stable, low‐noise two‐stage current source concept for electronics and laser applications by Grzegorz Dudzik

Subjects: “…ultra-stable low-noise two-stage current source concept…”
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Strengthening and toughening an ultra-high strength medium Mn steel by fibrous ferrite bridging mechanism by Chao Zhang, Qian Cheng, Bo Yang, Wuli Su, Xue Chen, Qingyuan Wang, Wenquan Cao, Chongxiang Huang

“…The steel demonstrated ultra-high yield and tensile strengths of 1310 and 1516 MPa, as well as 8.3% uniform and 14.7% total elongations. …”
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An ultra-simplified protocol for PCR template preparation from both unsporulated and sporulated Eimeria oocysts by Aruto Takano, Dennis V. Umali, April H. Wardhana, Dyah H. Sawitri, Isao Teramoto, Toshimitsu Hatabu, Yasutoshi Kido, Akira Kaneko, Kazumi Sasai, Hiromitsu Katoh, Makoto Matsubayashi

“…The most sensitive PCR assay was achieved with the template prepared by disrupting oocysts suspended in distilled water, followed by bead-beating and heating at 99°C for 5 min, which detected 0.16 oocysts per PCR. This ultra-simplified protocol for preparation of PCR template, which does not require expensive reagents or equipment, will significantly enhance the sensitive and efficient molecular identification of Eimeria. …”
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Synthesis of Disentangled Ultra-High Molecular Weight Polyethylene: Influence of Reaction Medium on Material Properties by Giuseppe Forte, Sara Ronca

“…The polymerization of ethylene to Ultra-High Molecular Weight Polyethylene (UHMWPE) in certain reaction conditions allows synthesis of nascent powders with a considerably lower amount of entanglements: the material obtained is of great interest from both academic and industrial viewpoints. …”
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Experimental Investigation and Prediction of Compressive Strength of Ultra-High Performance Concrete Containing Supplementary Cementitious Materials by Jisong Zhang, Yinghua Zhao, Haijiang Li

“…Ultra-high performance concrete (UHPC) has superior mechanical properties and durability to normal strength concrete. …”
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Offset Adjustment Mechanism and Rigid-flexible Coupling Analysis Method for Spatial Ultra-thin Paper Tape by Gan Shengyong, Hong Guanghuai, Zhou Changjiang

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Four Central Nanocavity of Ultra-Sensitive Refractive Index Biosensor for Cancer Detection in Hexagonal Photonic Crystal by William Matsui, Jianqiao Fang

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Recent Advanced Ultra‐Wide Bandgap β‐Ga2O3 Material and Device Technologies by Sihan Sun, Chenlu Wang, Sami Alghamdi, Hong Zhou, Yue Hao, Jincheng Zhang

“…Abstract Gallium oxide (Ga2O3) is an emerging ultra‐wide bandgap (UWBG) semiconductor material that has gained significant attention in the field of high voltage and high frequency power electronics. …”
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Optimization of Ultra Lightweight Mirror and Opto-Mechanical–Thermal Coupling Analysis Based on Solar Thermal Radiation by Quanliang Dong, Jinhe Yang, Tong Zhang, Xiaoming Wang

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Ultra-fast etching of photoresist by reactive atmospheric-pressure thermal plasma jet with surface temperature measurement by Kyohei Matsumoto, Hibiki Kato, Jiawen Yu, Hiroaki Hanafusa, Seiichiro Higashi

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Achieving Ultra‐High Heat Flux Transfer in Graphene Films via Tunable Gas Escape Channels by Haolong Zheng, Peng He, Shujing Yang, Yonghua Lu, Na Guo, Yanhong Li, Gang Wang, Guqiao Ding

“…After optimization, graphene films with ultra‐high thermal conductivity (1781 W m−1 K−1) and a thickness over 100 µm are realized. …”
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Influence of Distribution Modulus on the Compressive Strength of Ultra-High-Performance Concrete with Coarse Aggregate (UHPC-CA) by Zhihui Yu, Lishan Wu, Cong Zhang, Toshiyuki Bangi

“…The Modified Andreasen and Andersen model (MAA model) is commonly chosen to realize condensed particle packing in ultra-high-performance concretes (UHPCs). In the MAA model, the q (distribution modulus) is a parameter that plays a critical role in the UHPC matrix design. …”
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Rhodium‐Alloyed Beta Gallium Oxide Materials: New Type Ternary Ultra‐Wide Bandgap Semiconductors by Xian‐Hu Zha, Yu‐Xi Wan, Shuang Li, Dao Hua Zhang

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