Xiao Lu

Apr 11, 2024 | ejpr.onlinelibrary.wiley.com | Xiao Lu

Introduction Time is a scarce resource in politics, which motivates political actors to decide strategically the sequence and order of their activities (Döring, 1995; Linz, 1998). In European parliamentary democracies, the scarcity of time is manifested by the constitutionally fixed maximum length of a government or legislature tenure, renewable with competitive elections (Döring, 1995, pp. 242–243).

Nov 8, 2023 | mdpi.com | Xiao Lu

1. IntroductionSince the early 20th century, musical films have become a popular genre in Hollywood productions and have acquired appeal in a variety of new continents and regions, including Asia, Africa, and Latin America, making the musical a border-crossing genre in the global film industry (Kessler 2010; Chen 2022).

Sep 15, 2023 | mdpi.com | Jun Nie |Lichao Hao |Xiao Lu |Haixia Wang

1. IntroductionRecently, industrial robots have been utilized in a variety of fields, becoming the most widely used tool for industrial production [1,2,3]. With the further development of robots, many research works have been devoted to the study of the uncertain dynamics and trajectory tracking control of mechanical arms suffering from bounded external disturbances.

Aug 10, 2023 | frontiersin.org | Zhiyuan Hu |Xiao Lu |Zhenzhong Zeng

1 IntroductionAtmospheric methane (CH4) is an important greenhouse gas (Fletcher and Schaefer, 2019) and precursor of tropospheric ozone (Staniaszek et al., 2022). The CH4 concentrations have been steadily increasing since the preindustrial period (Aben et al., 2017). Recent observations showed a CH4 rise of 267 ppb (16.2%) from 1984 to 2022 though with large interannual variations (Lan et al., 2022).

Apr 27, 2023 | frontiersin.org | Xiao Lu

Xiao Lu Lu1, Greg Kelley2, Mengjun Wang2, Xiaomei Guo1 and Ghassan S. Kassab1* 1California Medical Innovations Institute, United States 23DT Holdings (United States), United States The final, formatted version of the article will be published soon. Receive an email when it is updated You just subscribed to receive the final version of the article Objective: Bovine pericardium is common biological material for bioprosthetic heart valve.