Comment on 'A new nanoscale metastable iron phase in carbon steels'

We show that the selected area diffraction patterns presented in a recent paper (T. Liu et al. Sci. Rep. 2015 5, 15331) do not prove the existence of a new hexagonal phase in martensitic steels. They can be actually simulated by twin effects.Comment: 5 pagesm 3 figure

Coopetition spectrum trading in cognitive radio networks

Spectrum trading is a promising method to improve spectrum usage efficiency. Several issues must be addressed, however, to enable spectrum trading that goes beyond conservative trading idle bands and achieve cooperation between primary and secondary users. In this paper, we argue that spectrum holes should be explicitly endogenous and negotiated by spectrum trading participants. To this end, we proposed an a Vickery auction based, coopetive framework to foster cooperation, while allowing competition for spectrum sharing. Incentive schemes and penalty for revocable spectrum are proposed to increase the spectrum access opportunities for SUs while protecting PUs spectrum value. A simultation study shows that the proposed framework outperforms conservative trading approaches, in a variety of scenarios with different levels of cooperation and bidding strategies. © 2013 IEEE

Legislative Alert: Nomination of Goodwin Liu

[Excerpt] I am writing on behalf of the AFL-CIO in support of the nomination of Professor Goodwin Liu to the U.S. Court of Appeals for the Ninth Circuit. Professor Liu is extraordinarily well-qualified and I urge you to vote for cloture, and to vote for his confirmation

New Superconvergent Dispersion Relations for the Forward πN Crossing-Even Amplitude

A Liu-Okubo-type dispersion relation is derived for the crossing-even pion-nucleon forward elastic scattering amplitude T(+). Two subtractions are made, one at the physical scattering threshold and the other at a previously determined zero of T(+) on the imaginary axis of the complex ω (pion lab energy) plane. The dispersion relation is well satisfied over the whole allowed range of the Liu-Okubo parameter. Moreover, it is nearly saturated by low-energy scattering for a considerable range of the parameter. It should thus serve as an extremely sensitive test of the low-energy scattering data when such data become more accurately known

Contract Rights Under the I-864 Affidavit of Support: Seventh Circuit\u27s Reasoning Binds Courts\u27 Hands in a Shifting Landscape for Public Charge Doctrine

(Excerpt) Courts are currently split on the issue of whether a mitigation of damages defense is available to sponsors to the Affidavit. Leading cases, including Liu, rely upon the unique nature of the form to assert that such defenses are precluded. This Note will argue that the I-864 should be treated under the same principles as a typical common-law contract. Part I of this Note will trace the history of the I-864 form, primarily focusing on the legislation and case law rendering the form an enforceable contract. Part II will discuss Liu v. Mund, focusing extensively on the United States Court of Appeals for the Seventh Circuit’s legal and policy arguments, and how other courts have responded in its wake. Subsequently, Part III will respond to the arguments in Liu, offering novel arguments. Finally, Part III will offer analysis of the Affidavit in light of recently proposed executive action, making this Note the first to tie these executive actions directly to parties’ contract rights. Ultimately, this Note argues that treating the I-864 form as a common-law contract is not only a proper reading of the authorizing statutes, but also that diverging from Liu will give courts flexibility to ensure just outcomes in litigation

Conference on immigration law and policies.

Conference held on 24 February 2001 (Saturday) in Council Chamber, 8/F, Meng Wah Complex, University of Hong Kong.Caption title.published_or_final_versionStrugging with the right to family life Athena Liu Liu, AthenaIntegration or segregation : the political attitude of new arrivals Robert Chung Chung, RobertHousing and welfare services for new arrivals from China : inclusion or exclusion? Ernest Chui Chui, ErnestImmigration and health care Chow Chun Bong Chow, Chun- bongQuota system and one way permit Ho Hei Wah Ho, Hei-wahDiscretion and immigration control Philip Dykes SC Dykes, Philip S. C.Immigration law and discretionary powers T K Lai Lai, T. K.Inherent contradictions and inconsistencies in the Immigration Ordinance S H Kwok Kwok, S. H.Due process and aliens Paul Harris Harris, PaulThe cultural politics of mainland Chinese migration to Hong Kong Khun Eng Kuah-Pearce Kuah-Pearce, Khun En

Métodos de plano crítico para el análisis de fatiga multiaxial en el acero inoxidable 316

El presente trabajo estudia la capacidad de predicción de los modelos de plano crítico para casos de fatiga multiaxial. El material que se estudia es un acero inoxidable 316. Los caminos de carga aplicados son uniaxiales y biaxiales en la superficie de la probeta. El siguiente estudio realiza una comparativa de las predicciones de vida a fatiga y ángulo de grieta de los modelo Wang-Brown, Fatemi-Socie, Liu I y Liu II. Se observó que la mejor predicción de vida fue devuelta por el modelo de Liu II y para el ángulo de grieta por Liu I.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Los autores agradecen la financiación aportada para la realización de este trabajo al Ministerio de Economía y Competitividad (referencia MAT2016-76951-C2-2-P)