Autor: Cheng, W. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Research on the disturbance generated by a solar array drive assembly driving a flexible system
Autorzy:: Chen, J.
Cheng, W.
Tematy:: solar array drive assembly
disturbance
flexible system
electromagnetic torque
vibration equation; Pokaż więcej
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Powiązania:: https://bibliotekanauki.pl/articles/949310.pdf Link otwiera się w nowym oknie
Opis:: The present work is aimed at presenting the disturbance generated by a solar array drive assembly (SADA) driving a flexible system. Firstly, the vibration equation of SADA is obtained by simplifying and linearizing the electromagnetic torque. Secondly, the disturbance model of SADA driving a discrete flexible system is achieved based on the vibration equation established. Taking a two-dof flexible system as the study object, this disturbance model is simulated and analyzed. Lastly, a continuous flexible system, which is designed to simulate the solar array, is used to illustrate the simulation method of the disturbance emitted by SADA driving a continuous flexible system. All the achievements obtained from this project will provide a theoretical basis for the prediction of the disturbance emitted by the SADA driving solar array on the orbit.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Effect of Post Annealing on La$\text{}_{0.7}$Sr$\text{}_{0.3}$MnO$\text{}_{3}$ Thin Films
Autorzy:: Cheng, W. F.
Leung, C. W.
Tematy:: 75.30.-m
73.50.-h; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/2047232.pdf Link otwiera się w nowym oknie
Opis:: The stability of La$\text{}_{0.7}$Sr$\text{}_{0.3}$MnO$\text{}_{3}$ thin films fabricated by pulsed laser deposition, under different annealing procedures, was investigated. La$\text{}_{0.7}$Sr$\text{}_{0.3}$MnO$\text{}_{3}$ films were deposited on (100) LaAlO$\text{}_{3}$ substrates at 650ºC with the films thickness from 20 to 50 nm. The oxygen pressures used to fabricate the films were 150 mTorr and 100 mTorr. Then in situ annealing steps were performed at 100 and 150 mTorr, respectively. Curie temperatures (T$\text{}_{c}$) of the films were estimated from the peaks of the temperature dependent resistance data. For the films deposited at 100 mTorr and annealed at 150 mTorr, T$\text{}_{c}$ slightly dropped for short annealing time and recovered to 360 K for 30 min annealing. For the films deposited at 100 mTorr and annealed at 150 mTorr, it maintained semiconducting behavior without transition after annealing up to 30 minutes. For ex situ post annealing, it was found that the T$\text{}_{c}$ of the films strongly depended on the annealing procedures.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Use of nanofiltration membranes to concentrate and recover leached aluminum from acidified water treatment sludge
Autorzy:: Cheng, W. P.
Chen, P. H.
Tian, D. R.
Yu, R. F.
Fu, C. H.
Tematy:: water purification
nanofiltration
acidic solutions
leaching
roztwory kwaśne
oczyszczanie wody
nanofiltracja
ługowanie
glin; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/208030.pdf Link otwiera się w nowym oknie
Opis:: The recovery of aluminum from water purification sludge is usually performed by making the solution acidic or basic. However, for economic reasons and reasons of safety, excessive doses of acid or base should not be utilized. Accordingly, the aluminum concentration in the leached solution is typically limited, thus the recovered aluminum cannot be directly reused as a coagulant. A nanofiltration (NF) membrane can be used in the acidic solution to concentrate high-valence metal ions. There-fore, in this work, H₂SO₄ was utilized to leach Al³⁺ ions from water purification sludge. Then, the Al³⁺ ion solution was concentrated using a low-price NF membrane. The effect of natural organic matter on the Al³⁺ ion concentrating efficiency in the filtration process has been elucidated. Experimental results reveal that Al³⁺ ions were effectively prevented from passing through the NF membrane, enabling a highly concentrated aluminum solution to be obtained. However, the presence of organic compounds may reduce the efficiency of the concentration of Al³⁺ ions in the solution.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: Interacting Electrons and Holes in Quasi-2D Quantum Dots in Strong Magnetic Fields
Autorzy:: Hawrylak, P.
Sheng, W.
Cheng, S.-J.
Tematy:: 73.21.-b
83.35.-p
73.21.La
71.35.Ji
78.67.Hc; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/2038355.pdf Link otwiera się w nowym oknie
Opis:: Theory of optical properties of interacting electrons and holes in quasi-2D quantum dots in strong magnetic fields is discussed. In two dimensions and the lowest Landau level, hidden symmetries control the interaction of the interacting system with light. By confining electrons and holes into quantum dots hidden symmetries can be removed and the excitation spectrum of electrons and excitons can be observed. We discuss a theory electronic and of excitonic quantum Hall droplets at a filling factorν=2. For an excitonic quantum Hall droplet the characteristic emission spectra are predicted to be related to the total spin of electron and hole configurations. For the electronic droplet the excitation spectrum of the droplet can be mapped out by measuring the emission for increasing number of electrons.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range
Autorzy:: Raffaelli, F.
Regenfus, C.
Bonivento, W.
Grab, Magdalena
Thorpe, T.
Stracka, S.
Candela, A.
Ave, M.
Sheshukov, A.
Scapparone, E.
Pelliccia, N.
Liqiang, Q.
Vogelaar, R. B.
Antonioli, P.
Arcelli, S.
Canci, N.
Giorgi, M. A.
Semenov, D. A.
Nania, R.
Froudakis, G. E.
Castellani, A.
Razeti, M.
Cossio, F.
Davini, S.
D’Incecco, M.
Arpaia, P.
Cadeddu, M.
Daniel, M.
Seifert, A.
Cicalò, C.
Pegoraro, P. A.
Dionisi, C.
Ghiano, C.
Maricic, J.
Pandola, L.
Manecki, S.
Ghisi, A.
Segreto, E.
Alton, A. K.
Skorokhvatov, M. D.
Zuffa, M.
Abdelhakim, S.
Viel, S.
Hubaut, F.
Kugathasan, R.
Wu, S.
Hosseini, B.
Miletic, T.
Chashin, S.
Colocci, M.
Gulino, M.
Gabriele, F.
Cifarelli, L.
Palmas, S.
Keeter, K.
Asunskis, A.
Korga, G.
Oleinik, A.
Boulay, M. G.
Cantini, C.
Simeone, M.
Fiorillo, G.
Moggi, A.
Napolitano, T.
Haaland, R. K.
Kondo, K.
Santone, D.
De Falco, A.
Di Stefano, P.
Sulis, S.
Yang, C.
Navrer Agasson, A.
Pellegrino, C.
Cocco, V.
Rescigno, M.
Nowak, J. A.
Pantic, E.
Sobrero, G.
Pelczar, Krzysztof
Ripoli, C.
Derbin, A. V.
Ardito, R.
Ajaj, R.
Wojcik, Ma.
Kopp, G.
Wang, H.
Harrop, B.
Bonfini, G.
Smirnov, O.
Alici, A.
Korablev, D.
Agnes, P.
Di Noto, L.
Mróz, Tomasz
Nessi, M.
Picciau, E.
Cavuoti, S.
Franceschi, A.
La Commara, M.
McDonald, A. B.
Rubbia, A.
Cela Ruiz, J. M.
Rode, J.
Wójcik, Marcin
Sokolov, A.
Kendziora, C. L.
Buzulutskov, A.
Salatino, P.
Mandarano, A.
Hallin, A.
Dadoun, O.
Pollmann, T. R.
Gligan, M. L.
Tuveri, M.
Li, X.
Monroe, J.
Cavalcante, P.
Back, H. O.
Bottino, B.
Giampa, P.
Guan, M.
Covone, G.
Ye, Z.
Gascón Fora, D.
Unzhakov, E. V.
Dellacasa, G.
Mu, W.
Fernandez Diaz, M.
Horikawa, S.
Ortica, F.
Filip, C.
Santorelli, R.
Lissia, M.
Pesudo, V.
Devoto, A.
Mariani, M.
De Rosa, G.
De Cecco, S.
Garbini, M.
Batignani, G.
Frolov, E.
Hackett, B. R.
Ianni, An.
Musico, P.
Portaluppi, D.
Cheng, W.
Pralavorio, P.
Siddhanta, S.
Cariello, M.
Fomenko, K.
Radics, B.
Humble, P.
Oleynikov, V.
Borisova, E.
Rivetti, A.
Da Rocha Rolo, M. D.
Sanfilippo, S.
Carnesecchi, F.
Vacca, A.
Giovanetti, G. K.
Samoylov, O.
Bussino, S.
Di Pietro, G.
Williams, R.
Martinez Rojas, A. D.
Tartaglia, R.
Castello, P.
Franco, D.
Cereseto, R.
Xiao, X.
Coccetti, F.
Guerzoni, M.
Lehnert, B.
Nikulin, I.
Wilson, J.
Suffritti, G. B.
Mason, J.
Orsini, M.
Citterio, M.
Stainforth, R.
Albuquerque, I. F. M.
Tosi, A.
Grobov, A.
Shchagin, A.
Funicello, N.
Bocci, V.
Ippolito, V.
Schlitzer, B.
Strickland, V.
Lai, M.
Messina, A.
Viant, T.
Jillings, C.
Vázquez-Jáuregui, E.
Lussana, R.
Kubankin, A.
Rignanese, L. P.
Martínez, M.
Poudel, S. S.
Vishneva, A.
Wang, Y.
Marinelli, M.
De Pasquale, S.
Lodi, G. U.
De Gruttola, D.
Renshaw, A. L.
Romero, L.
Marras, D.
Tonazzo, A.
Pazzona, F.
Perotti, F.
Downing, M.
Lebois, M.
Mascia, M.
D’Antone, I.
Testera, G.
Cavazza, D.
Gendotti, A.
La Delfa, L.
Edalatfar, F.
Singh, P. N.
Chepurnov, A.
Anstey, J.
Cebrian, S.
Zuzel, Grzegorz
Sala, P.
Crivelli, P.
Westerdale, S.
Kochanek, I.
Muratova, V. N.
Wahl, J.
Bondar, A.
Ragusa, F.
Caravati, M.
Arnquist, I. J.
De Guido, G.
Levashko, N.
Grassi, M.
Amaudruz, P.
Skensved, P.
Bisogni, M. G.
Nosov, V.
Pallavicini, M.
Murphy, S.
Sandford, E.
Masoni, A.
Conde Vilda, E.
Arba, M.
Demontis, P.
Barbaryan, V.
Longo, G.
Gabrieli, A.
Savarese, C.
Muscas, C.
Price, D.
Morrocchi, M.
Graciani Diaz, R.
Galbiati, C.
Grate, J. W.
Garcia Abia, P.
Cadoni, M.
Giganti, C.
Pellegrini, L. A.
Ameli, F.
Pocar, A.
Rescia, S.
Sánchez García, E.
Scioli, G.
Steri, A.
Sotnikov, A.
De Deo, M.
Alexander, T.
Dolganov, G.
Kuss, M.
Gorchakov, O.
Barrado Olmedo, A.
Suvorov, Y.
Giampaolo, R. A.
Consiglio, L.
Moioli, S.
Caminata, A.
Pagani, L.
Guerra, M. B. B.
Retiere, F.
Bunker, R.
Mari, S. M.
Rossi, N.
Sant, M.
Eusanio, F. Di
Pietropaolo, F.
Empl, A.
Walding, J. J.
Machulin, I. N.
Paoloni, E.
Gromov, M.
Hoppe, E. W.
Aalseth, C. E.
Celano, B.
Romani, A.
Mapelli, L.
Asner, D. M.
Szelc, A. M.
Luzzi, L.
Usai, G.
Harańczyk, Małgorzata
Margotti, A.
Wheadon, R. J.
Villa, F.
Machado, A. A.
Hungerford, E. V.
Peeters, S.
Dordei, F.
Ilyasov, A.
Milincic, R.
Opis:: Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter searches to record (in the gas phase) the ionization signal induced by particle scattering in the liquid phase. The "standard" EL mechanism is considered to be due to noble gas excimer emission in the vacuum ultraviolet (VUV). In addition, there are two alternative mechanisms, producing light in the visible and near infrared (NIR) ranges. The first is due to bremsstrahlung of electrons scattered on neutral atoms ("neutral bremsstrahlung", NBrS). The second, responsible for electron avalanche scintillation in the NIR at higher electric fields, is due to transitions between excited atomic states. In this work, we have for the first time demonstrated two alternative techniques of the optical readout of two-phase argon detectors, in the visible and NIR range, using a silicon photomultiplier matrix and electroluminescence due to either neutral bremsstrahlung or avalanche scintillation. The amplitude yield and position resolution were measured for these readout techniques, which allowed to assess the detection threshold for electron and nuclear recoils in two-phase argon detectors for dark matter searches. To the best of our knowledge, this is the first practical application of the NBrS effect in detection science.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

na półce

Skocz do pozycji: 6.

Tytuł:: Design and construction of a new detector to measure ultra-low radioactive-isotope contamination of argon
Autorzy:: Eusanio, F. Di
Hackett, B. R.
Commara, M. La
Castellani, A.
Antonioli, P.
Arba, M.
Gruttola, D. De
Ghisi, A.
Martoff, C. J.
García, E. Sánchez
Carpinelli, M.
Filippis, G. De
Castello, P.
Ye, Z.
Grab, Magdalena
Abia, P. Garcia
Santorelli, R.
Korga, G.
Suvorov, Y.
Cheng, W.
Morales, J. J. Martínez
Mu, W.
Thorpe, T.
Demontis, P.
Harrop, B.
Unzhakov, E. V.
Pallavicini, M.
Kim, S.
D'Antone, I.
Retiere, F.
Diaz, R. Graciani
Mróz, Tomasz
Verducci, M.
Shchagin, A.
Skorokhvatov, M. D.
Zuffa, M.
Downing, M.
Barbaryan, V.
Siddhanta, S.
Consiglio, L.
Palmas, S.
Ardito, R.
Kochanek, I.
Lebois, M.
Mason, J.
Liqiang, Q.
Candela, A.
Williams, R.
Guerra, M. B. B.
Davini, S.
Empl, A.
Asner, D.M.
Bussino, S.
Gabriele, F.
Ippolito, V.
Pelczar, Krzysztof
Caminata, A.
Pegoraro, P. A.
Bottino, B.
Portaluppi, D.
Alexander, T.
Aalseth, C. E.
Ferri, A.
Chepurnov, A.
Bocci, V.
Lai, M.
Pocar, A.
Wada, M.
Canci, N.
Ilyasov, A.
Sokolov, A.
Oleinik, A.
Testera, G.
Kopp, G.
Oleynikov, V.
Wojcik, Mariusz
Savarese, C.
Covone, G.
Anstey, J.
Crivelli, P.
Giampaolo, R. A.
Kubankin, A.
Granato, F.
Gendotti, A.
Grate, J. W.
Giorgi, M. A.
Jillings, C.
Raffaelli, F.
Sheshukov, A.
Viel, S.
Skensved, P.
Guan, M.
Abdelhakim, S.
Wahl, J.
Sanfilippo, S.
Mazzi, A.
Maricic, J.
Pelliccia, N.
Wilson, J.
Stefano, P. Di
Langrock, S.
Ruiz, J. M. Cela
Wheadon, R. J.
Picciau, E.
Sotnikov, A.
Vázquez-Jáuregui, E.
Marcante, M.
Razeto, A.
Amaudruz, P.
D'Incecco, M.
Machado, A. A.
Cicalò, C.
Falco, A. De
Cossio, F.
Luzzi, L.
Moioli, S.
Westerdale, S.
Meyers, P. D.
Musico, P.
Gulino, M.
Tuveri, M.
Pazzona, F.
Cecco, S. De
Moggi, A.
Cavazza, D.
Giovanetti, G. K.
Pagani, L.
Zuzel, Grzegorz
Szelc, A. M.
Martínez, M.
Dellacasa, G.
Fora, D. Gascón
Gromov, M.
Murphy, S.
Rosa, G. De
Walding, J. J.
Kuss, M.
Masoni, A.
Deo, M. De
Fiorillo, G.
Strickland, V.
Tartaglia, R.
Lissia, M.
Filip, C.
Kugathasan, R.
Singh, P. N.
Stainforth, R.
Buzulutskov, A.
Cadeddu, M.
Candia, A. De
Nessi, M.
Batignani, G.
Wu, S.
Grobov, A.
Renshaw, A. L.
Edalatfar, F.
Steri, A.
Cadoni, M.
Mari, S. M.
Bisogni, M. G.
Guido, G. De
Messina, A.
Cereseto, R.
Bonfini, G.
Regazzoni, V.
Schlitzer, B.
Smirnov, O.
Price, D.
Orsini, M.
Mariani, M.
Pantic, E.
Vacca, A.
Cantini, C.
Arpaia, P.
Kuźniak, M.
Gabrieli, A.
Fomenko, K.
Monroe, J.
Romero, L.
Ave, M.
Wójcik, Marcin
Muratova, V. N.
Morrocchi, M.
Machulin, I. N.
Alton, A. K.
Boulay, M. G.
Scapparone, E.
Citterio, M.
Ajaj, R.
Hosseini, B.
Rubbia, A.
Hoppe, E. W.
Ameli, F.
Albuquerque, I. F. M.
Pralavorio, P.
Vishneva, A.
Marras, D.
Gola, A.
Asunskis, A.
Wang, Y.
Guerzoni, M.
Levashko, N.
Dordei, F.
Milincic, R.
Sulis, S.
Giampa, P.
Peeters, S.
Korablev, D.
Nania, R.
Nikulin, I.
Regenfus, C.
Cariello, M.
Li, X.
Simeone, M.
Colocci, M.
Rivetti, A.
McDonald, A. B.
Grigoriev, G. Y.
Keeter, K.
Kondo, K.
Hallin, A.
Salatino, P.
Marinelli, M.
Dadoun, O.
Garbini, M.
Pesudo, V.
Tosi, A.
Cocco, V.
Cebrian, S.
Samoylov, O.
Back, H. O.
Pietro, G. Di
Vogelaar, R. B.
Cifarelli, L.
Seifert, A.
Ragusa, F.
Bonivento, W.
Miletic, T.
Haaland, R. K.
Arcelli, S.
Viant, T.
Olmedo, A. Barrado
Rojas, A. D. Martinez
Perotti, F.
Santone, D.
Radics, B.
Xiao, X.
Bunker, R.
Piemonte, C.
Sobrero, G.
Franco, D.
Rescigno, M.
Semenov, D. A.
Cavalcante, P.
Scioli, G.
Cavuoti, S.
Delfa, L. La
Lehnert, B.
Yang, C.
Mascia, M.
Bondar, A.
Franceschi, A.
Froudakis, G. E.
Usai, G.
Noto, L. Di
Giagu, S.
Pietropaolo, F.
Kendziora, C. L.
Paternoster, G.
Borisova, E.
Suffritti, G. B.
Giganti, C.
Sant, M.
Dolganov, G.
Romani, A.
Mapelli, L.
Tonazzo, A.
Devoto, A.
Cocco, A. G.
Derbin, A. V.
Rescia, S.
Rolo, M. D. Da Rocha
Hungerford, E. V.
Daniel, M.
Sablone, D.
Wang, H.
Ortica, F.
Agnes, P.
Diaz, M. Fernandez
Gorchakov, O.
Grassi, M.
Gligan, M. L.
Razeti, M.
Cataudella, V.
Manzano, R. López
Paoloni, E.
Pollmann, T. R.
DePaquale, S.
Hubaut, F.
Pellegrini, L. A.
Pellegrino, C.
Longo, G.
Carnesecchi, F.
Ghiano, C.
Pandola, L.
Caravati, M.
Alici, A.
Arnquist, I. J.
Horikawa, S.
Margotti, A.
Agasson, A. Navrer
Rignanese, L. P.
Segreto, E.
Sala, P.
Humble, P.
Ianni, An.
Mandarano, A.
Lodi, G. U.
D'Urso, D.
Muscas, C.
Napolitano, T.
Lussana, R.
Coccetti, F.
Poudel, S.S.
Celano, B.
Rossi, N.
Dionisi, C.
Stracka, S.
Galbiati, C.
Catalanotti, S.
Acerbi, F.
Villa, F.
Opis:: Large liquid argon detectors offer one of the best avenues for the detection of galactic weakly interacting massive particles (WIMPs) via their scattering on atomic nuclei. The liquid argon target allows exquisite discrimination between nuclear and electron recoil signals via pulse-shape discrimination of the scintillation signals. Atmospheric argon (AAr), however, has a naturally occurring radioactive isotope, $^{39}$Ar, a β emitter of cosmogenic origin. For large detectors, the atmospheric $^{39}$Ar activity poses pile-up concerns. The use of argon extracted from underground wells, deprived of $^{39}$Ar, is key to the physics potential of these experiments. The DarkSide-20k dark matter search experiment will operate a dual-phase time projection chamber with 50 tonnes of radio-pure underground argon (UAr), that was shown to be depleted of $^{39}$Ar with respect to AAr by a factor larger than 1400. Assessing the $^{39}$Ar content of the UAr during extraction is crucial for the success of DarkSide-20k, as well as for future experiments of the Global Argon Dark Matter Collaboration (GADMC). This will be carried out by the DArT in ArDM experiment, a small chamber made with extremely radio-pure materials that will be placed at the centre of the ArDM detector, in the Canfranc Underground Laboratory (LSC) in Spain. The ArDM LAr volume acts as an active veto for background radioactivity, mostly γ-rays from the ArDM detector materials and the surrounding rock. This article describes the DArT in ArDM project, including the chamber design and construction, and reviews the background required to achieve the expected performance of the detector.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

na półce

Skocz do pozycji: 7.

Tytuł:: Energy feature of a multi-flow column flotation process
Autorzy:: Cheng, G.
Yu, Y.
Ma, L.
Xia, W.
Xu, H.
Tematy:: flotation column
turbulent kinetic energy
turbulent dissipation rate
bubble; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/109768.pdf Link otwiera się w nowym oknie
Opis:: A cyclonic-static micro-bubble flotation column (FCSMC) has been widely used in mineral separation. FCSMC includes countercurrent, cyclone and jet flow mineralization zones in a single column. In this study, the energy feature of the three different zones was compared. The turbulent flow was evaluated in terms of the turbulent kinetic energy (k) and the turbulent dissipation rate (ε). An appropriate computing model was determined by comparing the flow field value measured by PIV with the results of the Fluent numerical simulation. Jet flow separation exhibited the maximum k and ε values among the three columns, whereas counter-current separation displayed the minimum values. The high circulating volumetric flowrate means great energy input and turbulent intensity. The higher turbulent dissipation rate, the smaller the bubble is. The better performance of the FCSMC was mainly attributed to the multiple mineralization steps. The floatability of mineral particles gradually decreases with an increase in flotation time, the mineralization energy gradually increased to overcome the decrease in mineral floatability. By contrast, the countercurrent was beneficial for recovering the coarse particles, and the jet flow was beneficial for recovering the fine particles.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Heating control of heated twin radiosonde humidity sensor based on DMC
Autorzy:: Sun, N.
Zhang, Y.
Zhang, W
Cheng, E.
Liu, Y.
Tematy:: DMC
twin heated humidity sensor
expanded responsible curve
heating control; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/260018.pdf Link otwiera się w nowym oknie
Opis:: In order to effectively solve condensation and icing problems of radiosonde in low-temperature environment at high altitude, humidity sensor heated automatic alternately to remove pollution and improve the measurement accuracy. Heat experiments obtained the curve of rising temperature and responsible time on heated twin humidity sensor in normal temperature and pressure, by expanded responsible curve to obtain heated model of twin heated humidity sensor and by the analysis of heating model, use DMC and PID control for heating respectively. Simulation results show that the DMC control meets the practical requirements of measure at high altitude.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Revealing the core transcriptome modulating plant growth phase in Arabidopsis thalianaby RNA sequencingand coexpression analysis of the FHY3 FAR1 mutant
Autorzy:: Wang, W.
Zhao, G.
Wu, S.
Hua, W.
Zhang, T.
Ruan, R.
Cheng, Y.
Tematy:: weekly transcriptome analysis
plant development
different expression genes
(DEGs)
immune response; Pokaż więcej
Wydawca:: Polskie Towarzystwo Botaniczne
Powiązania:: https://bibliotekanauki.pl/articles/2130692.pdf Link otwiera się w nowym oknie
Opis:: Plants must continually calibrate their growth in response to the environment throughout their whole life cycle. Revealing the regularity of plant early growth and development is of great significance to plant genetic modification. It was previously demonstrated that loss of two key light signaling transcription factors, FHY3 and FAR1, can cause a stunted stature in the plant adult stage, and numerous defense response genes can be continuously activated. In this study, we performed a time-course transcriptome analysis of the early 4 weeks of leaf samples from wild plants and their fhy3 and far1 transcription factors. By comparative transcriptome analysis, we found that during the early 4 weeks of plant growth, plants primarily promoted morphogenesis by organizing their microtubules in the second week. In the third week, plants began to trigger large- scale defense responses to resist various external stresses. In the fourth week, increased photosynthetic efficiency promoted rapid biomass accumulation. Weighted gene coexpression network analysis of FHY3 and FAR1 revealed that the two light signaling transcription factors may be originally involved in the regulation of genes during embryonic development, and in the later growth stage, they might regulate gene expression of some defense-related genes to balance plant growth and immunity. Remarkably, our yeast two-hybrid and bimolecular fluorescence complementation experiments showed that FAR1 interacts with the immune signaling factor EDS1. Taken together, this study demonstrates the major biological processes occurring during the early 4 weeks of plant growth. The light signaling transcription factors, FHY3 and FAR1, may integrate light signals with immune signals to widely regulate plant growth by directly interacting with EDS1.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Shape Optimization of Mufflers Composed of Multiple Rectangular Fin-Shaped Chambers Using Differential Evolution Method
Autorzy:: Chiu, M.-C.
Chang, Y.-C.
Cheng, H.-C.
Tai, W.-T.
Tematy:: fin
multi-chamber
high-order-mode
differential evolution; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/177237.pdf Link otwiera się w nowym oknie
Opis:: There has been considerable research done on multi-chamber mufflers used in the elimination of industrial venting noise. However, most research has been restricted to lower frequencies using the plane wave theory. This has led to underestimating acoustical performances at higher frequencies. Additionally, because of the space-constrained problem in most plants, the need for optimization of a compact muffler seems obvious. Therefore, a muffler composed of multiple rectangular fin-shaped chambers is proposed. Based on the eigenfunction theory, a four-pole matrix used to evaluate the acoustic performance of mufflers will be deduced. A numerical case for eliminating pure tones using a three-fin-chamber muffler will also be examined. To delineate the best acoustical performance of a space-constrained muffler, a numerical assessment using the Differential Evolution (DE) method is adopted. Before the DE operation for pure tone elimination can be carried out, the accuracy of the mathematical model must be checked using experimental data. The results reveal that the broadband noise has been efficiently reduced using the three-fin-chamber muffler. Consequently, a successful approach in eliminating a pure tone using optimally shaped three-fin-chamber mufflers and a differential evolution method within a constrained space has been demonstrated.
Dostawca treści:: Biblioteka Nauki

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