Reabilitarea unei săli de sport dintr-un spaţiu de învăţământ

This paper present the faultsand demages detected at the bearing structure of the stairs as well as the necessary consolidation for reuse purposes

Association phenomena in quaternized polysulfones/solvent/nonsolvent systems

Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.Theoretical and experimental aspects on association phenomena generated by hydrogen bonding, dispersive and electrostatic interactions in ternary systems consisting of a proton-donor solvent (N,N-dimethylformamide or methanol), a proton-acceptor solvent (water), and a proton-acceptor polymer (polysulfone with different alkyl side chains), are investigated. In this context, binary and ternary thermodynamic interaction parameters are corrected on the basis of different association constants. Numerical values for these constants were evaluated as a function of the system composition, by mathematical simulations. As a result, mathematical simulations allow a good theoretical description of the preferential adsorption in agreement with experimental data.dc201

Morphological and Rheological properties of new quaternized polysulfone with triphenylphosphonium pendant groups

Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.A new quaternized polysulfone with triphenylphosphonium pendant groups was synthesized by reacting chloromethylated polysulfone with triphenylphosphine. The molecular restructurations, generated by hydrogen bonding, electrostatic interactions and association phenomena in ternary quaternized polysulfone/N,N-dimethylformamide (solvent) / water (non- solvent) systems, were evaluated by rheological investigations. The results were correlated with the morphological properties of the films prepared from solutions in solvent/nonsolvent mixturesdc201

Dermoscopy of skin metastases in advanced cancer—systemic (visceral, hematologic) and cutaneous

IntroductionSkin metastases arise in 10% of cancer patients, but standardized dermoscopy diagnostic criteria for skin metastases remain poor. This study's objective was to analyze the dermoscopy features of skin metastases from advanced systemic and cutaneous cancers.MethodsA retrospective study on 715 dermoscopy images of skin metastases from 33 patients with various primary cancers (breast, ovary, melanoma, non-melanoma skin cancer, and chronic leukemia) attending two academic centers between 2013 and 2023 was performed. Four independent observers blindly analyzed patterns, colors, vessels, and elementary lesions for each metastasis (30 parameters in total).ResultsThe structureless white pattern was the most prominent indicator of cutaneous metastasis (81.26%, p < 0.001). Regardless of the primary tumor, colors pink, red, white, and tan were identified. Elementary lesions were infrequent, except for melanoma metastases that displayed dots (13.23%) and globules (11.11%). Breast cancer metastases presented: blue (41.48%) and red (34.32%) colors, irregular vessels (13.58%), and a blue-naevus pattern (22.22%). Melanoma metastases displayed: a blue-naevus pattern (61.38%), a blue color (85.71%), and a structureless-blue combination pattern (79.37%). Non-melanoma skin cancer metastases were characterized by vascular (42.11%) and angioma-like (31.58%) patterns, pink (57.89%) and red (57.89%) colors, irregular (57.89%), thin hairpin (47.37%), comma (47, 37%), and thick hairpin (26, 32%) vessels and a red, white and irregular vessels combination pattern (52, 63%). A pink structureless combination pattern was frequent (61.05%) in chronic leukemia metastases. Ovarian cancer metastases displayed a white and tan structureless combination pattern (100%) and frequently had dotted vessels (42.85%).ConclusionPapules and nodules with a white structureless pattern suggest skin metastases, regardless of the primary tumor. A blue structureless lesion is indicative of melanoma metastasis and a vascular pattern with irregular vessels indicates a non-melanoma skin cancer metastasis. Dermoscopy stands as a reliable non-invasive diagnostic method for suspected cutaneous metastases in patients with a known cancer history

Machine Tool Use Phase:Modeling and Analysis with Environmental Considerations

This thesis is motivated from the fundamental decision problem in today's manufacturing industry which could be summarized as one simple question: how is it possible to achieve economic growth by taking advantage of the latest technologies while protecting the environment? The machine tool has undergone a remarkable change in recent years and the classical concept of an independent, manually operated machine tool, specially dedicated to a particular machining process no longer belongs to the production environment. The increasing usage of computer control and measuring equipment as well as workpiece and tool handling devices has transformed the machine tool into a sophisticated hybrid production system having a lower demand for human supervision of the process. All these efforts are gathered together in order to achieve a high productivity system able to machine different parts respecting quality requirements at the lowest cost. In addition, increasing attention to the environmental and health impacts by governmental regulations and by growing awareness in society is forcing manufacturers to find environmentally friendly designs and machining strategies. The objective of this research is to propose a multicriteria decision aid methodology (MCDA) for evaluation of the use phase of a machine tool system by jointly considering economical, technical and environmental criteria which allows the decision maker to be in a better position to make sustainable decisions. The evaluation is carried out at two levels by addressing the process level with its local cutting area effects and the main activities of the machine tool system by giving full consideration to reduction/elimination of the cutting fluid and reduction of the overall energy consumption. After carefully reviewing previous research, a consistent hierarchical evaluation criteria structure and an entity relationship diagram characterizing the organizational scheme of a database, which stores the data to be used in the evaluation process, is proposed for each level. As a second step, this thesis proposes a model for estimation of the mechanical energy requirements of the cutting subsystem of a machine tool based on the cutter location data, the cutting parameters and the technical specifications of the spindle and feed axes. The MCDA methodology and the energy consumption model were implemented in a software tool using the VBA (Visual Basic for Applications) language and was validated through various tests consisting in the machining of different milling and drilling features of a prismatic part by employing different cutting parameters and cooling/lubrication alternatives. In addition to the cutting tests, an extensive monitoring of the power share amongst the main subsystems of a modern machining center was carried out and a power data collection framework was proposed. The acquisition, interpretation and storage of the experimental data were supported by a measurement platform developed in the LabVIEW environment

Considerations Regarding the Mix of Anticrisis Fiscal Policies in Romania

The last centuries, it has been noticed that the economic activity does not unfold linearly, that the expansion periods are followed by a contraction of the economic activity, that the peak moments cannot be maintained endlessly and that, after recession, a relaunch of the economic activity may occur. The political and economical cycles, emphasized by the last decades, made people talk more about the countercyclical policies and about the behaviour of the politicians seen in strong connection with the behaviour of the voting population.    To reduce the effects of the current crisis, the state uses fiscal incentives, this representing a combination of public expenses and a reduction of the taxes for the companies and the households which aims at the revival of the economic life, the increase of employment and the recovery of the business environment.    The countercyclical policies are known and applied all over the world, each responsible government choosing those instruments of budget and fiscal policy which best match the concrete possibilities of economy and correspond with its political doctrines. Thus seen the mix of fiscal policies is firstly a political choice, but with a strong impact on the economy of a country

THE PRO AND CONS OF THE NEW TREATY ON STABILITY, COORDINATION AND GOVERNANCE IN THE ECONOMIC AND MONETARY UNION

Abstract: In our study, using a descriptive research methodology based on survey and data interpretation, we are trying to state our opinion regarding the pro and cons of the Fiscal Compact, wheather our country made a step forward towards fiscal stabilization or a step backwards towards the space for maneuver of the fiscal policy. Stability and Growth Pact, signed in Amsterdam in 1997, maintained the two limits set by the Maastricht Treaty, signed in 1992, namely those set within 3% of GDP for budget deficit and 60% of GDP for public debt, and established at the same time the regulatory framework for the coordination of national fiscal policies in the EMU. Medium-term objective, enshrined in the Stability and Growth Pact, is for the budgetary position of the Member States of the euro zone to be "close to balance or in surplus" – and to enable them to deal with normal cyclical fluctuations without exceeding effectively the 3% of GDP budget deficit. Achievement of the medium- term objective requires rapid evolution towards a sustainable situation, able to generate sufficient fiscal space for the promotion of discretionary fiscal policy measures - such as those embodied in the increase of budgetary allocations for investments in infrastructure

Considerations Regarding the Mix of Anticrisis Fiscal Policies in Romania

The last centuries, it has been noticed that the economic activity does not unfold linearly, that the expansion periods are followed by a contraction of the economic activity, that the peak moments cannot be maintained endlessly and that, after recession, a relaunch of the economic activity may occur. The political and economical cycles, emphasized by the last decades, made people talk more about the countercyclical policies and about the behaviour of the politicians seen in strong connection with the behaviour of the voting population. To reduce the effects of the current crisis, the state uses fiscal incentives, this representing a combination of public expenses and a reduction of the taxes for the companies and the households which aims at the revival of the economic life, the increase of employment and the recovery of the business environment. The countercyclical policies are known and applied all over the world, each responsible government choosing those instruments of budget and fiscal policy which best match the concrete possibilities of economy and correspond with its political doctrines. Thus seen the mix of fiscal policies is firstly a political choice, but with a strong impact on the economy of a country.fiscal policies; political and economical cycles; fiscal stimulation; budget deficit; fiscal stabilizers.

Methods of Manufacturing Technology for Active Compounds Plates of Stamps and Molds

Industrial fields that assume series production of various assembly parts tend more and more to apply as manufacturing method cold stamping and moulding. At current level of development, this processing method compared to others comes with important advantages. Present paper describes methods applied in active boards manufacturing technology of moulds and stamps

Contribution à l'étude de la polymérisation des certaines monomères acryliques et méthacryliques mono- et polyfonctionnels

MONTPELLIER-BU Sciences (341722106) / SudocSudocFranceF