Autor: Pop, A. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Dimensional Analysis and Quality Improvement for Head Side Airbag Gluing Stage
Analiza wymiarowa i poprawa jakości klejenia bocznej poduszki powietrznej
Autorzy:: Pop, A.
Cociş, G
Brad, R
Tematy:: airbag
gluing
dimensional analysis
quality control
process capability
poduszka powietrzna
klejenie
analiza wymiarowa
kontrola jakości
zdolności procesu; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Powiązania:: https://bibliotekanauki.pl/articles/232857.pdf Link otwiera się w nowym oknie
Opis:: The paper presents a quality study of the airbag gluing stage, especially the incorrect direction of the silicone cord on the airbag panel. A cortina type airbag is obtained by assembling two panels, which are overlapped and glued with a silicone bead. In the first step, all defects related to the silicon cord, i.e. wrong direction, were analysed based on data collected by the check points of the sewing lines using a QA010 check sheet, for the period of a week. At this point, five areas with a high defect frequency were detected. In the second step, for specified areas we examined the products in order to identify defect causes, respecting a sampling plan. On four random days, fifteen samples were inspected and measured, complying with ISO 9001:2000 and ISO/TS 16949. Then the production process’s ability to meet or exceed preset specifications was evaluated, by measuring the process capability. For problem solving, a “PEM – PEM” diagram was employed. The contributing factors, such as human operators, environment, methods, and materials, were investigated to look for the key areas. Based on a cause – effect analysis, the main nonconformities were underlined and assignable causes of variations detected. Finally a quality improvement plan was proposed taking into account the difficulty of the HSAB production process due to the large size of parts, as well as the cutting stage, silicone bead and pressing and sewing operations.
Badano jakość klejenia poduszki powietrznej, zwłaszcza nieprawidłowego ułożenia silikonowego kordu na panelach poduszki. Poduszkę powietrzną typu cortina uzyskano przez połączenie dwóch paneli zachodzących na siebie i klejonych za pomocą pastylek sylikonowych. Zbadano strefy charakteryzujące się najczęstszym występowaniem defektów, a następnie opracowano plan poprawy uwzględniający wszystkie trudności procesu produkcyjnego, w tym takie jak duże wymiary części składowych oraz parametry technologiczne procesu docisku i zszywania poszczególnych części.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Probing the symmetry energy at low density using observable from neck fragmentation
Autorzy:: Pirrone, S.
Grassi, L.
Baran, V.
Russotto, P.
Cardella, G.
Papa, M.
Auditore, L.
Grzeszczuk, A.
Trifirò, A.
Porto, F.
Piasecki, E.
Vigilante, M.
Colonna, M.
Acosta, L.
Zetta, L.
Trimarchi, M.
Minniti, T.
Guazzoni, P.
Płaneta, Roman
Skwira-Chalot, I.
Maiolino, C.
Siwek-Wilczyńska, K.
Rosato, E.
Wilczyński, J.
Lombardo, I.
Pop, A.
Agodi, C.
Geraci, E.
De Filippo, E.
Berceanu, I.
Gianì, R.
Rizzo, F.
Amorini, F.
Pagano, E. V.
Cap, T.
Verde, G.
Pagano, A.
Francalanza, L.
Politi, G.
La Guidara, E.
Han, J.
Lanzalone, G.
Quattrocchi, L.
Opis:: Semi-peripheral collisions of ^{64}Ni + ^{124}Sn in direct and inverse kinematics, at 35 A MeV incident energy, are studied to characterize the dynamical origin and align-ments properties of fragments emission at midrapidity. This emission is partly due to the fragmentation of a transient neck joining the projectile and target in the early stages of the reaction. Recently we exploited observable from neck fragmentation to constraint the density dependence of the symmetry energy. In this contribution we focus on the density evolution of the mid-rapidity source. An experimental survey is suggested to check if data are consistent with the formation of neck fragments in a dilute density region in contact with the projectile-like and target-like spectators at normal saturation density.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Inne

na półce

Skocz do pozycji: 3.

Tytuł:: Correlations between emission timescale of fragments and isospin dynamics in ^{124}Sn+^{64}Ni and ^{112}Sn+^{58}Ni reactions at 35A MeV
Autorzy:: Lombardo, I.
Le Neindre, N.
D'Agostino, M.
Anzalone, A.
Wieleczko, J. P.
De Filippo, E.
Verde, G.
Gawlikowicz, W.
Vigilante, M.
Pop, A.
Lanzalone, G.
Bougault, R.
Skwira-Chalot, I.
Trimarchi, M.
Lanzanò, G.
Cavallaro, S.
Amorini, F.
Bruno, M.
Pagano, A.
Chatterjee, M. B.
Di Toro, M.
Frankland, J.
Pirrone, S.
Rizzo, F.
Geraci, E.
Wilczyński, J.
Płaneta, Roman
Auditore, L.
Galichet, E.
Porto, F.
Zipper, W.
Politi, G.
Cap, T.
La Guidara, E.
Russotto, P.
Berceanu, I.
Rosato, E.
Maiolino, C.
Rivet, M. F.
Chbihi, A.
Cardella, G.
Papa, M.
Schmidt, K.
Kowalski, S.
Zetta, L.
Siwek-Wilczyńska, K.
Trifirò, A.
Dayras, R.
Colonna, M.
Piasecki, E.
Borderie, B.
Guazzoni, P.
Baran, V.
Grzeszczuk, A.
Opis:: We present a new experimental method to correlate the isotopic composition of intermediate mass fragments (IMF) emitted at midrapidity in semiperipheral collisions with the emission timescale: IMFs emitted in the early stage of the reaction show larger values of ⟨N/Z⟩ isospin asymmetry, stronger angular anisotropies, and reduced odd-even staggering effects in neutron to proton ratio ⟨N/Z⟩ distributions than those produced in sequential statistical emission. All these effects support the concept of isospin “migration”, that is sensitive to the density gradient between participant and quasispectator nuclear matter, in the so called neck fragmentation mechanism. By comparing the data to a stochastic mean field (SMF) simulation we show that this method gives valuable constraints on the symmetry energy term of nuclear equation of state at subsaturation densities. An indication emerges for a linear density dependence of the symmetry energy.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: The absorption of ultrasound in a fluid by small obstacles of spherical form
Autorzy:: Czyż, H.
Pop, T.
Szczepaniak, A.
Ściuk, W.
Wydawca:: Polskie Towarzystwo Akustyczne
Powiązania:: https://bibliotekanauki.pl/articles/331884.pdf Link otwiera się w nowym oknie
Opis:: The presented study involves the problem of acoustic energy absorbed by aerosols. The aim of this paper is to present results of the valuation of ultrasound energy absorption general coefficient in the dispersions (aerosols). Aerosol particle is an obstacle for acoustic wave propagating and to surmount of which some energy of the medium vibrating is lost. Aerosol particle results in both acoustic energy scattering and its absorption. Besides, there are heat losses connected with periodic variation of the medium temperature. In this connection propagation of acoustic wave in the aerosol is related to decrease in wave intensity to more extent than in propagating a wave in a pure gaseous medium.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: Magnetic Behaviour of the Ce-Co-Mn Intermetallics of MgCu₂ Structure Type
Autorzy:: Dudric, R.
Popescu, A.
Isnard, O.
Pop, V.
Coldea, M.
Tematy:: 71.20.Eh
75.20.En
75.20.Hr
75.30.Cr; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1402321.pdf Link otwiera się w nowym oknie
Opis:: The magnetic properties of CeCoMn, Ce₃Co₃Mn₄ and Ce₃Co₆Mn alloys have been investigated by magnetization and susceptibility measurements in the temperature range (5-300) K and magnetic field up to 12 T. X-ray powder diffraction measurements showed that all three alloys are isostructural and crystallize in the cubic MgCu₂ structure type. Both Ce and Co atoms are non-magnetic in all alloys like in the isostructural compound CeCo₂. Magnetic behavior of the investigated alloys is mostly due to the Mn moments and depends essentially on the Mn-Mn distances. The interaction between the Mn moments is antiferromagnetic in CeCoMn and Ce₃Co₃Mn₄ but a paramagnetic behavior for Ce₃Co₆Mn was evidenced in the studied temperature range.
Dostawca treści:: Biblioteka Nauki