4,343 research outputs found
Світоглядні аспекти феномену лідерства: до постановки проблеми
In the new millennium, the urgent need for effective leadership becomes more apparent than ever before. Rapidly developing processes of globalization, in the context of societies moving from modernity toward postmodernity, generate more and more contradictory effects. The contemporary world requires a new generation of leaders in education, business, government and non-governmental structures, responsible, open, integral, courageous, capable of critical thinking individuals who recognize the common mission of all humankind and seek to contribute to a better future. The paper attempts to analyze certain worldview aspects of leadership phenomenon.У новому тисячолітті нагальна потреба в ефективному лідерстві стає очевидною як ніколи раніше. Глобалізація як процес і наростаюча тенденція нашого часу стрімко набуває загальносвітового масштабу, породжуючи нові суперечливі наслідки. Сучасний світ потребує нового покоління лідерів в освіті, бізнесі, урядових та неурядових структурах, відповідальних, відкритих, цілісних, мужніх, здатних до критичного мислення особистостей, які визнають спільну місію всього людства і прагнуть зробити свій внесок у створення кращого майбутнього. У статті зроблено спробу проаналізувати певні світоглядні аспекти феномену лідерства.
Parameters affecting the efficiency of a heat transformer with a particular focus on the heat solution
The heat transformer is a reverse cycle absorption machine, suitable for the direct exploitation of heat wastes and solar energy. Part of these wastes are “transformed” into thermal energy at a higher temperature than the one provided. Hence some studies concern the evaluation of the performances of the working fluids used. They must ensure a high level of efficiency which, as for the conventional absorption machines, depends on several parameters. One of these parameters is the heat solution: it is defined as the heat absorbed when a mole of a given component is mixed with the amount of the other component required to generate the desired solution at a certain temperature and pressure. This is the reason why the decision was to examine its influence with respect to machines exerting two different fluids which are generally used. The first one is NH3-H2O, whereas the second is H2O-LiBr; they used as refrigerating substances ammonia and water respectively and as absorption substances water and lithium bromide. Through an analytical modeling and the processing of experimental data provided by the bibliography, it was possible to show how, for these fluids, the terms of the sensible heat represent a moderate fraction of the global energy balance, at one condition though: highly efficient recovery exchangers must be present. Moreover there were reported values of the refrigeration effect of the order of thousands of kJ/kg with satisfying responses energetically speaking. Then a high stability of the fluid NH3-H2O was revealed, as testified by the high value of the difference between the concentration of the refrigerator in the absorber and the concentration of the refrigerator in the generato
Decrease of the maximum speed in highway tunnels as a measure to foster energy savings and sustainability
The high energy consumption of the lighting installations in highway tunnels has become a hot topic in the last few years due to the high figures in terms of money, consumed energy, use of raw materials, emissions of greenhouse gases due to the remarkable number of manufactured elements, and maintenance, among others. In spite of the different strategies proposed up to date and their savings, the potential benefits of decreasing the maximum speed allowed in tunnels have not been considered in depth as a complementary measure yet. In this work, the impact of such a decrease in terms of energy consumption, number projectors, carbon dioxide (CO2) emissions, and yearly costs in energy is analyzed and discussed. The results strongly suggest the convenience of introducing maximum speed reduction in traffic regulations which, in addition, could create positive synergies with traffic safety
Urban regeneration. The case study of PORU – Senigallia (Ancona, Italy)
Few Italian authors have investigated the term “regeneration” as it is dealt with in the international literature. The current interpretation of “Urban
Regeneration”, in Italy, seems to be a re-interpretation of the old term “requalification” rather than a change of the paradigm for spatial policies.
Nowadays, “Urban Regeneration” is perceived as the traditional practice of “requalification” which had been abused by planners and architects referring
to an urban design practice for brownfield re-use.
Such approach, leads to increased confusion and misleading interpretation between the authentic way of face with deep innovation for spatial policies,
especially during a credit crunch period which request radical innovations in land use planning. The Italian case suffers from a lack of appreciation of the
original interpretation of the term “Urban Regeneration”, which is (particularly in the UK) deeply rooted in urban policies than in urban design practices.
The paper argues how the contemporary Italian interpretation of “Urban Regeneration” is poor and ambiguous in comparison with the authentic one:
it will be presented how it is mainly focused on the final goal of urban transformation project which remains, as usual, an urban design project for land
transformation. In contrast to this, the paper try to argue how regeneration practices being strictly dependent on Public Private Partnership (PPP) for
managing and steering projects of transformation, and presents a case study (Senigallia, AN) which is going to define new paths to achieve a pioneering
regeneration process for the existent city.
Even not concluded, the Operative Program of Urban Requalification” (Programma Operativo di Riqualificazione Urbana - PORU) generates innovations
on process (it is adaptable to administrative capacity of negotiate with real-estate operators) which is going to steer urban transformation policies and
define new paths to achieve urban transformation (it uses innovative procedures for define rules of transformation)
Informative Policy of Occupation Administration and its Influence on Mood of Population in 1941−1944 (After Materials of Archives of the Volynskoy and Rovenskoy Areas)
Стаття присвячена визначенню основних аспектів окупаційної політики в цьому регіоні й аналізу механізмів та форм інформаційно-психологічного впливу на населення Волині в період німецької окупації 1941−1944 рр.
The article is devoted determination of basic aspects of of occupation policy of this region and analysis of mechanisms and form informa-tively psychological influence on the population of Volyni in the period of German occupation 1941−1944
From quantitative to qualitative analysis of Land-Take. The application of a Composite Indicator for targeted policies of Land Take reduction
The processes of land take and soil sealing tend to receive more attention as threats to soil resources and Ecosystem Services (ES) provided by soil grow.
The objectives of this paper are: 1) to assess the extent of land take (intended as the of artificial surfaces) in the Province of Lodi (Northern Italy) by evaluating
the accuracy associated to the different scales of the cartography used; 2) to assess the effects of land take on the selected ES (in particular, supporting
and regulating services). In case of study the ES assessed was the potential agricultural productivity, evaluated the Land Capability Classification1 as proxy
and integrated with additional information regarding the increase of impervious surfaces. Thus, the construction of an experimental Composite Indicator
on Land Take has been provided.
The results have shown that important underestimation of land take occurs when Corine Land Cover2 (CLC) is used at local level in Italy but, at the same
time, when used in Country, CLC seems to be sufficient to assess the general amount of Land Take. Moreover, when a shift from the neutral assessment
to practical policy orientation of Land Take reduction is requested, a higher degree of additional qualitative information necessary to steer planning options.
The Composite Indicator is aimed to help policy makers and planners to adopt suitable measures by applying European guidelines and protocols
for Land Take government
Heavy minerals as detritus provenance indicators for the Jurassic pre-Callovian palaeokarst infill from the Czatkowice Quarry (Kraków-Wieluń Upland, Poland)
Heavy mineral assemblages from the infill of Jurassic pre-Callovian palaeokarst in the Czatkowice Quarry, in the Kraków–Wieluń Upland, are zircon dominated. They contain also garnet, tourmaline, rutile and scarce grains of kyanite, staurolite and single chromian spinel. The textural features of the heavy minerals suggest that certain types of source rocks supplied the clastic material infilling in the karst studied. Most of the heavy minerals were derived from sedimentary or metasedimentary rocks as suggested by the high degree of roundness of the grains and also by high ZTR (zircon–tourmaline–rutile) index values. Rounded minerals may derive from Carboniferous, Permian and Triassic clastic rocks occurring in the area surrounding the Czatkowice Quarry. The chemical compositions of rounded detrital garnet and tourmaline grains suggest metamorphic and igneous rocks as initial sources, perhaps located in the Bohemian Massif. However, a hypothetical landmass located south of the Kraków–Wieluń Upland might have been an additional source area. The euhedral zircon and garnet grains were transported directly from crystalline rocks, which may have been Carboniferous-Permian volcanic rocks and crystalline basement elevations of Brunovistulicum exposed during Jurassic pre-Callovian sedimentation in the Czatkowice area
Деятельность Астрономической обсерватории Киевского университета Св. Владимира в 1845-1870 годах
В статті висвітлена діяльність Астрономічної обсерваторії Київського університету Св. Володимира (нині Київський національний університет ім. Т.Г. Шевченка) під керівництвом В. Ф. Федорова і А. П. Шидловського. Відзначено, що В. Ф. Федоров піклувався про оснащення обсерваторії астрономічними приладами і комплектуванням унікальної бібліотеки. Відмічено турботу В. Ф. Федорова про забезпеченість науковими кадрами обсерваторії. За період його директорства працювали: астроном-спостерігач К. С. Полухтович — допомога якого у встановленні нових інструментів надала стимул активізації роботи обсерваторії; В. К. Пилипенко — астроном-спостерігач, сам виготовив кілька приладів; асистент професора І. І. Федоренко — викладав курси астрономії та геодезії та проводив практичні заняття зі студентами. В. Ф. Федоров розпочав регулярні спостереження затемнень сонця. Розкрита роль відомого вченого-астронома А. П. Шидловського на посаді директора обсерваторії, зокрема проведена ним реконструкція, під час якої було збудовано новий павільйон для рефрактора, придбане нове астрономічне обладнання, розпочато регулярні астрономічні спостереження на відновленому рефракторі, великому пасажному інструменті та на переносному вертикальному колі Репсольда. Показана діяльність астрономів-спостерігачів О. І. Громадського та І. А. Востокова.In this article the activity of the Astronomic observatory of the Kyiv University of Saint Volodymyr (now — The Taras Shevchenko National University of Kyiv) under the guidance of V. F. Fedorov and A. P. Shidlovskii is described. It is marked that V. F. Fedorov cared of rigging of observatory astronomic devices and collecting of the unique library. It is shown that V.F. Fedorov was taking care of providing the scientific staff for the observatory. During his directorships there were working the following scientists: astronomer-observer K. S. Polukhtovic whose introduction of new instruments gave a stimulus to active work of the observatory; astronomer-observer V. K. Pilipenko, who made some devises himself, The assistant professor I. I. Fedorenko lectured the courses of astronomy and geodesy and conducted the practical reading with students. V. F. Fedorov began the regular observations of eclipses of the sun. The role of the outstanding scientist-astronomer A. P. Shidlovskii as director of observatory is exposed. In particular, during his directorship a reconstruction of the observatory was made and the new pavilion was constructed for refractor, the new astronomic equipment was purchased, regular astronomic observations started using the renewed refractor, large arcade instrument, and on the portable Repsold’s vertical circle. The activity of astronomers-observers O. I. Hromadskii and I. A. Vostokov is shown.В статье освещена деятельность Астрономической обсерватории Киевского университета Св. Владимира (ныне Киевский национальный университет им. Т. Г. Шевченко) под руководством В. Ф. Федорова и А. П. Шидловского. Отмечено, что В. Ф. Федоров заботился об оснащении обсерватории астрономическими приборами и комплектованием уникальной библиотеки. Отмечено заботу В. Ф. Федорова об обеспеченности научными кадрами обсерватории. За период его директорства работали: астроном-наблюдатель К. С. Полухтович - помощь которого в установлении новых инструментов предоставила стимул активизации работы обсерватории; В. К. Пилипенко – астроном-наблюдатель, сам изготовил несколько приборов; ассистент профессора И. И. Федоренко - преподавал курсы астрономии и геодезии и проводил практические занятия со студентами. В. Ф. Федоров начал регулярные наблюдения затмений солнца. Раскрыта роль известного ученого-астронома А. П. Шидловского на посту директора обсерватории, в частности проведенная им реконструкция, в ходе которой был построен новый павильон для рефрактора, приобретено новое астрономическое оборудование, начаты регулярные астрономические наблюдения на восстановленном рефракторе, большом пассажном инструменте и на переносном вертикальном круге Репсольда. Показана деятельность астрономов-наблюдателей А. И. Громадського и И. А. Востокова
Integrated process of Ecosystem Services evaluation and urban planning. The experience of LIFE SAM4CP project towards sustainable and smart communities.
Evaluation of Ecosystem Services (ES) and related mapping tools and techniques can be used in urban
planning and design to define sustainable land use strategies aimed to achieve resilience in urban
planning.
The analysis of ES improves the ability of politicians, administrators, planners and stakeholders to
define strategies of regeneration, ecologically and energy efficient oriented. Furthermore, it allows to
reflect about the sustainability of urbanization and related environmental issues, bringing attention to
social and economic aspects, too. The soil, as measurable value common good, is a source of energy,
requires a strong reduction of its consumption and a good use of it.
The paper experienced the recent research innovations made by DIST for LIFE program SAM4CP,
which integrates the process of planning and decision making with analysis and assessments of ES in
order to support Municipalities to define policies and monitoring procedures oriented to limit the
consumption of high quality soil. The process of evaluation and planning can also be adopted for urban
resilient projects aimed at define successful methods for improving energy efficiency in communities
and urban areas. The paper aims to present partial results of the project. A strong integration of
evaluation and planning actions, providing multicriteria analysis techniques and adopting software (like
InVEST) able to map the outcomes of the evaluation process and the inputs for the planning process
will be discussed.
An indicator based approach is presented as the innovative tool to achieve land use efficiency, and
resilience as the main paradigm to steer Co-planning Conference
Influence of input climatic data on simulations of annual energy needs of a building: energyplus and WRF modeling for a case study in Rome (Italy)
The simulation of the energy consumptions in an hourly regime is necessary in order to perform calculations on residential buildings of particular relevance for volume or for architectural features. In such cases, the simplified methodology provided by the regulations may be inadequate, and the use of software like EnergyPlus is needed. To obtain reliable results, usually, significant time is spent on the meticulous insertion of the geometrical inputs of the building, together with the properties of the envelope materials and systems. Less attention is paid to the climate database. The databases available on the EnergyPlus website refer to airports located in rural areas near major cities. If the building to be simulated is located in a metropolitan area, it may be affected by the local heat island, and the database used as input to the software should take this phenomenon into account. To this end, it is useful to use a meteorological model such as the Weather Research and Forecasting (WRF) model to construct an appropriate input climate file. A case study based on a building located in the city center of Rome (Italy) shows that, if the climatic forcing linked to the heat island is not considered, the estimated consumption due to the cooling is underestimated by 35–50%. In particular, the analysis and the seasonal comparison between the energy needs of the building simulated by EnergyPlus, with the climatic inputs related to two airports in the rural area of Rome and with the inputs provided by the WRF model related to the center of Rome, show discrepancies of about (i) WRF vs. Fiumicino (FCO): Δ = −3.48% for heating, Δ = 49.25% for cooling; (ii) WRF vs. Ciampino (CIA): Δ = −7.38% for heating, Δ = +35.52% for cooling
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