Search

In this paper, we propose a controller for a camera-based Pan-Tilt device. The approach uses the target image feature to steer the Pan-Tilt device to the target with random movement. Since these systems are often mounted on mobile equipment, energy efficiency should also be taken into account. In order to improve the control energy consumption efficiency of the Pan-Tilt system mounted with cammera, the authors use a dark objective function with optimal energy components to find controller parameters. Simulation results on the PanTilt system show that the camera can track a moving target quickly and stably and the control energy can be changed through the controller parameter according to the purpose of use.

1 L'évolution de la clause liée à la responsabilité sociale des entreprises dans les accords de libre-échange 1.1 D'une régulation indirecte de la responsabilité sociale des entreprises 1.2 ... à [...], Étant donné le rôle important des entreprises multinationales dans le commerce international en général et dans la résolution des questions non commerciales complexes (telles que l'environnement, le travail, les droits de la personne, le développement durable), un certain nombre d'accords de libre-échange tendent à inclure la responsabilité sociale des entreprises (RSE). Plusieurs possibilités ont été envisagées en ce sens soit par une référence à la RSE ou aux instruments internationalement reconnus en cette matière dans le préambule de ces accords, soit par une incorporation d'une ou de clauses la régissant explicitement. Une telle approche soulève donc la question de son efficacité en ce qui concerne la régulation des entreprises multinationales dans le contexte de l'intégration économique régionale. En outre, des mécanismes prévus dans ces accords peuvent y contribuer. Given the inevitable role of multinational enterprises in international trade in general and in solving complex non-traditional trade issues (such as the environment, labor, human rights, sustainable development), a number of new generation free trade agreements seek to cover corporate social responsibility (CSR). Several possibilities have been envisaged, either by a reference to CSR or to internationally recognized instruments in this subject matter in the preamble, or by the incorporation of a clause governing the CSR explicitly. Such an approach therefore raises the question of whether it is effective about the regulation of multinational enterprises in the context of regional economic integration. Some mechanisms provided for therein can contribute to this efficiency. Considerando el importante papel que tienen las empresas multinacionales en el comercio internacional en general, y en la resolución de controversias complejas no comerciales (como el medio ambiente, el trabajo, los derechos humanos o el desarrollo sostenible), un cierto número de acuerdos de libre comercio tienden a incluir la responsabilidad social empresarial (RSE). En este sentido se han considerado diversas posibilidades, ya sea haciendo referencia a la RSE, a instrumentos reconocidos internacionalmente en la materia y previstos en los respectivos preámbulos de dichos acuerdos; o bien incorporando una o más cláusulas que la regulen explícitamente. Por ende, tal enfoque ha planteado la cuestión de su eficacia, con respecto a la regulación de las empresas multinacionales en el contexto de la integración económica regional, además de los mecanismos previstos en estos acuerdos, que pueden contribuir en ello.

Introduction. Patients with arterial hypertension have a higher rate of morning blood pressure surge (MBPS) than non-hypertensive patients. MBPS increases the risk of stroke, myocardial infarction, sudden cardiac death, arterial stiffness, left ventricular hypertrophy, carotid atherosclerosis, and vascular inflammation. The prevalence and predictors of MBPS may vary significantly between geographic regions. The objective of the study was to determine the incidence of MBPS and associated factors in patients with primary hypertension. Material and methods. A cross-sectional descriptive study was conducted in patients ≥35 years old, diagnosed with primary arterial hypertension, and hospitalized in the Department of Cardiology of Thanh Vu Hospital, Bac Lieu, Vietnam, between March 2019 and May 2020. Results. Among 126 hypertensive patients, 80 had MBPS (63.5%): 66 had systolic MBPS (52.4%), 65 had diastolic MBPS (51.6%), and 51 had both systolic and diastolic MBPS (40.5%). Nocturnal hypertension, left ventricular hypertrophy, and stroke were statistically associated with MBPS. Conclusions. Since there is a high prevalence of MBPS, associated with multiple complications in patients with grade 2 or 3 hypertension, 24-hour ambulatory blood pressure measurement must be used in clinical practice in this group of patients, to ensure the timely detection and treatment of MBPS.