2021年1月6日 · We study FO+, a fragment of first-order logic on finite words, where monadic predicates can only appear positively. We show that there is a FO-definable language that is monotone in monadic predicates but not definable in FO+. This provides a simple proof that Lyndon's preservation theorem fails on finite structures.

1995年11月3日 · 1. Introduction A recent photoionization study involving transi- tions between ground state FO(X 21-I) and FO+(X 3E-) has pointed out the need for accurate vibrational frequencies of FO and FO÷ and for the Franck-Condon factors of …

🔥 O FO+ e o Ultimate TAF prepararam algo especial para as futuras bombeiras! 🔥 Se você sonha em vestir a farda e fazer parte do Corpo de Bombeiros Militar, chegou a hora de transformar esse sonho em realidade!

2014年12月10日 · The equilibrium structures of the ground electronic states for molecular ions FO + and FO – have been calculated by using the multi-reference configuration interaction method in combination with the augmented correlation-consistent basis sets up through sextuple zeta quality. The equilibrium parameters, potential energy curves and spectroscopic constants are derived for both species.

A comunidade Atmosfera FO+ é um espaço vibrante e acolhedor dedicado aos alunos do curso preparatório "FO Positivo" para concursos do Corpo de Bombeiros do Rio de Janeiro (CBMERJ).

Model Checking Data-Aware Workflow Properties with CTL-FO+ Abstract: Most works that extend workflow validation beyond syntactical checking consider constraints on the sequence of messages exchanged between services.

2014年12月10日 · We have presented high-level theoretical investigation on the ground electronic state of fluorine monoxide, including FO+ and FO− molecular ions [6]. As part of a series of researches on halogen monoxides, we report molecular properties of neutral and ionic chlorine monoxide in this paper.

2022年8月26日 · fO+HCS联合体团队，在2010至2022年间参与多项前海湾区规划建设项目，包括前海水城概念规划、前海水城启动区城市设计、前海桂湾河水廊道公园景观设计（建成）、宝安中心区中央绿轴城市设计、宝安中心区滨海廊桥（建成）等。 设计团队对前海中心区及宝安中心区城市建设，尤其是其公共空间领域保持着持续的关注和研究。 此次由fO+HCS+孚欧设计联合体提出的宝安中心区“超级岸线”城市设计，是设计团队十多年来的观察与思考的集中体现。 宝安中心 …

Nine lea­ding Pho­to­nics com­pa­nies and two pres­ti­gious rese­arch insti­tu­tes have inten­si­fied their coope­ra­tion in the ›Inno­va­tive Regio­nal Growth Core‹ ƒo+ [free­form optics plus] to deve­lop and mar­ket free­form opti­cal systems:

2022年1月27日 · We study FO+, a fragment of first-order logic on finite words, where monadic predicates can only appear positively. We show that there is an FO-definable language that is monotone in monadic predicates but not definable in FO+. This provides a simple proof that Lyndon's preservation theorem fails on finite structures.