of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 ... more ... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 23 i 2 Aetio I 69 =!= 2 101 f 2 OEP 50 =t 5 140 f 14 FelIICIOEPa 3.0 f 0.15 2300 f 100 Aetio In a In acetic acid Co111Br(NH3) Aetio ...
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 ... more ... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 23 i 2 Aetio I 69 =!= 2 101 f 2 OEP 50 =t 5 140 f 14 FelIICIOEPa 3.0 f 0.15 2300 f 100 Aetio In a In acetic acid Co111Br(NH3) Aetio ...
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 ... more ... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 23 i 2 Aetio I 69 =!= 2 101 f 2 OEP 50 =t 5 140 f 14 FelIICIOEPa 3.0 f 0.15 2300 f 100 Aetio In a In acetic acid Co111Br(NH3) Aetio ...
Although the use of inductively coupled power transfer (ICPT) systems for electric vehicle batter... more Although the use of inductively coupled power transfer (ICPT) systems for electric vehicle battery charge presents numerous advantages, a detailed design method cannot be found in the literature. This paper shows the steps to follow in the optimized design of an ICPT system and the results obtained in their application to the four most common compensation topologies, pointing out the best one in terms of minimum copper mass and proper stability conditions. A new design factor K D is proposed to select the optimum configuration for each topology. Finally, the theoretical results are validated on a 2-kW prototype with a 15-cm air gap between coils.
The development of a high autonomy purely electrical public mean of transportation is not current... more The development of a high autonomy purely electrical public mean of transportation is not currently viable because the required energy implies a very high battery weight. However, this weight would be significantly reduced if these batteries could be charged at the bus stops along the route, for instance using a contact-less power transfer system. An ICPT (Inductive Coupling Power Transfer) system with a large air gap has been developed and built for an electric vehicle battery charger. The practical sizing, the best compensation topology and the operational frequency have been studied in order to obtain maximum efficiency. The study has been focused on defining the prototype implementation process, validating the theoretical results and analyzing the influence of frequency deviation with respect to the resonant frequency and the effect of gap variation and misalignment in the behaviour of the system.
In a group of 58 patients with peripheral arteriopathies, we have studied efficacy and safety of ... more In a group of 58 patients with peripheral arteriopathies, we have studied efficacy and safety of buflomedil hydrochloride and naftidrofuryl. Both drugs have been shown to have vasoactive properties evaluated through walking capacity and time of hyperemia. According to our results, buflomedil is more effective and safe than naftidrofuryl in the treatment of patients with intermittent claudication.
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 ... more ... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 23 i 2 Aetio I 69 =!= 2 101 f 2 OEP 50 =t 5 140 f 14 FelIICIOEPa 3.0 f 0.15 2300 f 100 Aetio In a In acetic acid Co111Br(NH3) Aetio ...
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 ... more ... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 23 i 2 Aetio I 69 =!= 2 101 f 2 OEP 50 =t 5 140 f 14 FelIICIOEPa 3.0 f 0.15 2300 f 100 Aetio In a In acetic acid Co111Br(NH3) Aetio ...
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety ... more of the axial ligands increases. Ripan suggested the 250-nm band to be due to the Co(DMG)2 moiety only ; we feel this to be an insufficient explanation. Instead, we suggest that the charge-transfer band involves a transition from the 'A1 ground state of cobalt(II1) to some higher state of the molecule involving considerable mixing of DMG orbitals. This state is probably a t a rather constant energy (with respect to cobalt's field-free atomic term) throughout all the compounds.
... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 ... more ... Table IT Starting porphyrin K, min-1 min ~ Co11rBr(NH8) 670 f 60 10.5 f 0.6 CoIIOEP 300 f 20 23 i 2 Aetio I 69 =!= 2 101 f 2 OEP 50 =t 5 140 f 14 FelIICIOEPa 3.0 f 0.15 2300 f 100 Aetio In a In acetic acid Co111Br(NH3) Aetio ...
Although the use of inductively coupled power transfer (ICPT) systems for electric vehicle batter... more Although the use of inductively coupled power transfer (ICPT) systems for electric vehicle battery charge presents numerous advantages, a detailed design method cannot be found in the literature. This paper shows the steps to follow in the optimized design of an ICPT system and the results obtained in their application to the four most common compensation topologies, pointing out the best one in terms of minimum copper mass and proper stability conditions. A new design factor K D is proposed to select the optimum configuration for each topology. Finally, the theoretical results are validated on a 2-kW prototype with a 15-cm air gap between coils.
The development of a high autonomy purely electrical public mean of transportation is not current... more The development of a high autonomy purely electrical public mean of transportation is not currently viable because the required energy implies a very high battery weight. However, this weight would be significantly reduced if these batteries could be charged at the bus stops along the route, for instance using a contact-less power transfer system. An ICPT (Inductive Coupling Power Transfer) system with a large air gap has been developed and built for an electric vehicle battery charger. The practical sizing, the best compensation topology and the operational frequency have been studied in order to obtain maximum efficiency. The study has been focused on defining the prototype implementation process, validating the theoretical results and analyzing the influence of frequency deviation with respect to the resonant frequency and the effect of gap variation and misalignment in the behaviour of the system.
In a group of 58 patients with peripheral arteriopathies, we have studied efficacy and safety of ... more In a group of 58 patients with peripheral arteriopathies, we have studied efficacy and safety of buflomedil hydrochloride and naftidrofuryl. Both drugs have been shown to have vasoactive properties evaluated through walking capacity and time of hyperemia. According to our results, buflomedil is more effective and safe than naftidrofuryl in the treatment of patients with intermittent claudication.
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Papers by Juan Villa