PRACTICES FOR ENVIRONMENTAL SUSTAINABILITY IN THE ITALIAN FASHION CLOTHING AND LEATHER SECTORS: OUTCOMES OF AN EMPIRICAL RESEARCH

Virginia Fani,Romeo Bandinelli,Barbara Resta,Stefano Dotti,Rinaldo Rinaldi 글로벌지식마케팅경영학회 2015 Global Fashion Management Conference Vol.2015 No.06

The fashion supply chain, even if represents one of the most important economies of the European industry, is one of the most polluting industries in the world, being a huge consumer of water, electricity and chemicals, and discharging massive quantities of wastes to land. Despite this fact, only few contributions have offered an analysis of the practices adopted by fashion companies to reduce its environmental impact. This paper present an empirical study on the sustainability practices adoption of Italian companies in the fashion Clothing, Leather industries. The research has been conducted through an online survey submitted to a sample of 192 Italian companies, having respectively the 14 and 15 ATECO 2007 code in the AIDA database, with a response rate of 13%. The results have been analyzed through the statistical software SPSS, in order to conduct a cluster analysis and 6 different clusters have been identified. Companies belong to cluster 1 do not apply any sustainability practices, even if they are coherent with what they declare on their website. Companies of cluster 2 adopt some practices, but sustainability is not integrated into their culture. Cluster 3 is composed by companies that declare a high interest to the environment, mainly for marketing reason. This way, companies of this group represent the ones more misaligned and not consistent from the practices declared on their website and the one really implemented. Cluster 5 is composed by companies endorsing environmental sustainability as a part of the company values and a high level of practices implemented is reported. Last, companies belonging to Cluster 6 have the environmental sustainability as a strategic objective and implements sustainability practices in a consistent and coordinated way.

Effects of the yaw angle on the aerodynamic behaviour of the Messina multi-box girder deck section

Diana, G.,Resta, F.,Zasso, A.,Belloli, M.,Rocchi, D. Techno-Press 2004 Wind and Structures, An International Journal (WAS Vol.7 No.1

An analysis refinement of the Messina Strait suspension bridge project has been recently required, concerning mainly the yaw angle effects on the multi-box deck section aerodynamics and the vortex shedding at low reduced velocities $V^*$. In particular the possible interaction of the axial flow with the large cross beams has been investigated. An original test rig has been designed at this purpose allowing for both forced motion and free motion aero elastic tests, varying the average angle of attack ${\alpha}$ and the deck yaw angle ${\beta}$. The hydraulic driven test rig allowed for both dynamic and stationary tests so that both the stationary coefficients and the flutter derivatives have been evaluated for each yaw angle. Specific free motion tests, taking advantage from the aeroelastic features of the section model, allowed also the study of the vortex shedding induced phenomena.

Development of a methodology for damping of tall buildings motion using TLCD devices

Diana, Giorgio,Resta, Ferruccio,Sabato, Diego,Tomasini, Gisella Techno-Press 2013 Wind and Structures, An International Journal (WAS Vol.17 No.6

One of the most common solutions adopted to reduce vibrations of skyscrapers due to wind or earthquake action is to add external damping devices to these structures, such as a TMD (Tuned Mass Damper) or TLCD (Tuned Liquid Column Damper). It is well known that a TLCD device introduces on the structure a nonlinear damping force whose effect decreases when the amplitude of its motion increases. The main objective of this paper is to describe a Hardware-in-the-Loop test able to validate the effectiveness of the TLCD by simulating the real behavior of a tower subjected to the combined action of wind and a TLCD, considering also the nonlinear effects associated with the damping device behavior. Within this test procedure a scaled TLCD physical model represents the hardware component while the building dynamics are reproduced using a numerical model based on a modal approach. Thanks to the Politecnico di Milano wind tunnel, wind forces acting on the building were calculated from the pressure distributions measured on a scale model. In addition, in the first part of the paper, a new method for evaluating the dissipating characteristics of a TLCD based on an energy approach is presented. This new methodology allows direct linking of the TLCD to be directly linked to the increased damping acting on the structure, facilitating the preliminary design of these devices.

Effects of the yaw angle on the aerodynamic behaviour of the Messina multi-box girder deck section

G. Diana,F. Resta,A. Zasso,M. Belloli,D. Rocchi 한국풍공학회 2004 Wind and Structures, An International Journal (WAS Vol.7 No.1

A full-range hybrid device for sound reproduction

Braghin, Francesco,Castelli-Dezza, Francesco,Cinquemani, Simone,Resta, Ferruccio Techno-Press 2013 Smart Structures and Systems, An International Jou Vol.11 No.6

The paper deals with the design of a device for sound reproduction to be fixed to a supporting surface. The device is made up of two different types of acoustic actuators based on different technologies. This allows to reproduce sound in the range of frequencies from 20 Hz to 20 kHz. The generation of sound at high frequencies is demanded to a magnetostrictive actuator, while a more traditional magnetodynamics actuator is used to generate sound at low frequencies. The coupling between these two actuators leads to a device having small overall dimensions and high performance.

Development of a methodology for damping of tall buildings motion using TLCD devices

Giorgio Diana,Gisella Tomasini,Ferruccio Resta,Diego Sabato 한국풍공학회 2013 Wind and Structures, An International Journal (WAS Vol.17 No.6

One of the most common solutions adopted to reduce vibrations of skyscrapers due to wind or earthquake action is to add external damping devices to these structures, such as a TMD (Tuned Mass Damper) or TLCD (Tuned Liquid Column Damper). It is well known that a TLCD device introduces on the structure a nonlinear damping force whose effect decreases when the amplitude of its motion increases. The main objective of this paper is to describe a Hardware-in-the-Loop test able to validate the effectiveness of the TLCD by simulating the real behavior of a tower subjected to the combined action of wind and a TLCD, considering also the nonlinear effects associated with the damping device behavior. Within this test procedure a scaled TLCD physical model represents the hardware component while the building dynamics are reproduced using a numerical model based on a modal approach. Thanks to the Politecnico di Milano wind tunnel, wind forces acting on the building were calculated from the pressure distributions measured on a scale model. In addition, in the first part of the paper, a new method for evaluating the dissipating characteristics of a TLCD based on an energy approach is presented. This new methodology allows direct linking of the TLCD to be directly linked to the increased damping acting on the structure, facilitating the preliminary design of these devices.

A full-range hybrid device for sound reproduction

Francesco Braghin,Francesco Castelli-Dezza,Simone Cinquemani,Ferruccio Resta 국제구조공학회 2013 Smart Structures and Systems, An International Jou Vol.11 No.6

The paper deals with the design of a device for sound reproduction to be fixed to a supporting surface. The device is made up of two different types of acoustic actuators based on different technologies. This allows to reproduce sound in the range of frequencies from 20 Hz to 20 kHz. The generation of sound at high frequencies is demanded to a magnetostrictive actuator, while a more traditional magnetodynamics actuator is used to generate sound at low frequencies. The coupling between these two actuators leads to a device having small overall dimensions and high performance.

Raman signatures of spin-phonon coupling in a self-intercalated van der Waals magnet Mn3Si2Te6

Kwon Chang Il,Kim Kwangrae,Kim So Young,Susilo Resta A.,Kang Beomtak,Kim Kyoo,Kim Duck Young,Kim Jonghwan,Kim B.J.,Kim Jun Sung 한국물리학회 2023 Current Applied Physics Vol.53 No.-

We report the results of Raman spectroscopy on a self-intercalated van der Waals ferrimagnet Mn3Si2Te6. Using polarization-resolved Raman spectroscopy, we identify twelve phonon modes with Eg and A1g symmetries, in agreement with the first principle calculations. Below the ferrimagnetic transition temperature Tc ∼ 78 K, we observed a significant deviation of the phonon frequency from the anharmonic model, accompanied by a strong line broadening, indicating a substantial spin-phonon coupling in Mn3Si2Te6. Among twelve phonon modes, this spin-phonon coupling is found to be strong mostly in the out-of-plane vibrational modes. These results highlight the dominant role of the interlayer superexchange interaction in determining the magnetic properties, reflecting the self-intercalated van der Waals structure of Mn3Si2Te6.