摘要:
A liquid crystal device is constituted by a pair of transparent substrates each having thereon a transparent electrode, and a chiral smectic liquid crystal composition disposed between the substrates so as to assume at least two optically stable states. At least one of the substrates is provided with an alignment film which comprises a polyimide represented by a recurring unit of formula (I) shown below and has been subjected to a uniaxial aligning treatment. ##STR1## wherein A denotes a planar tetravalent organic residue group comprising an aromatic ring, an aromatic polycyclic ring, a heterocyclic ring or a condensed polycyclic ring, and B denotes a divalent aliphatic group comprising .paren open-st.CH.sub.2 .paren close-st..sub.n (n: an integer of at least 1) or an alicyclic ring. The chiral smectic liquid crystal composition may contain at least one species of fluorine-containing mesomorphic compound comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion connected with a central core and having a smectic phase or a latent smectic phase.
摘要:
A binder composition for electrodes with greater binding strength that does not inhibit the formation of a stable electrode interface (SEI) on the surface of an active substance is provided. The binder composition for electrodes includes at least one type of tetracarboxylic acid ester compound, at least one type of diamine compound, and an organic solvent. Furthermore, the organic solvent preferably has a boiling point that is 250° C. or less. In addition, the organic solvent preferably has a highest occupied molecular orbital (HOMO) that is −10 eV or less.
摘要:
A binder composition for electrodes relating to the present invention includes an ester compound derived from at least one type of tetracarboxylic acid, at least one type of compound having 3 or more amino groups, and an organic solvent. Furthermore, this binder composition for electrodes preferably contains at least one type of diamino compound. In addition, it is preferable to use a solvent with a boiling point ≦250° C. in this binder composition for electrodes.
摘要:
A liquid crystal apparatus is constituted by a liquid crystal device including a pair of substrates and a liquid crystal disposed between the substrates, and means for applying an asymmetrical drive signal waveform to the liquid crystal. The liquid crystal is capable of having at least two stable states S1 and S2 and capable of causing a cumulative translational movement depending on a change in an external electric field applied to the liquid crystal. To the liquid crystal, an asymmetrical drive signal waveform having an effective frequency range is applied by the above application means so as to provide an absolute value of a difference between an inversion frequency f.sub.01 where a direction of the movement of said liquid crystal is turned in an opposite direction in the state S1 and an inversion frequency f.sub.02 where a direction of the movement of said liquid crystal is turned in an opposite direction in the state S2 smaller than a difference therebetween in the case of applying a symmetrical drive signal waveform to said liquid crystal. The inversion frequencies f.sub.01 and f.sub.02 are within the effective frequency range of the asymmetrical drive signal waveform. The application means is effective in suppressing liquid crystal movement in the liquid crystal device.
摘要:
Escalator operation sounds are collected by a remote sound-collecting device 15 or fixed sound-collecting devices 17 and 18, and stored in a data collecting device 21 of a diagnosis device 20. A processing device 22 extracts only abnormal sound components of the escalator operation sound by calculation of a difference between reference data and the sound data stored in the data collecting device 21. The processing device 22 determines an occurrence of an anomaly based on whether a maximum peak P of the abnormal sound components is higher than a predetermined threshold value Sh1. When determined that the anomaly has occurred, the processing device 22 investigates a correlation between a frequency analysis result on data around the maximum peak of the abnormal sound components and abnormal sound frequency patterns pre-stored by causes of anomalies, and estimates the cause of the anomaly based on the investigation.
摘要:
When there is a breakdown in either one of first and second power converters supplying electrical power to a multi-winding motor comprising a wind-up mechanism, a rescue operation can be safely and reliably carried out by using the remaining power converter. A wind-up mechanism comprises a two-winding motor having first and second windings, and, during normal operation, power is supplied to the first and second windings from first and second inverters respectively. When the first inverter has broken down due to excessive current, first and second contactors are switched off, and a third contactor comprising a short-circuiting unit is switched on. Consequently, both windings receive power from the second inverter, enabling the rescue operation to be carried out without causing vibrations.
摘要:
A liquid crystal device is constituted by a pair of substrates at least one of which is provided with an alignment control film, and a liquid crystal composition disposed between the substrates and contacting the alignment control film. The alignment control film comprises an amide polymer and a pyridine-based polymer. The liquid crystal device using a mixture alignment control film described above is effective in improving a switching characteristic by minimizing a depolarization field while keeping a uniform alignment characteristic.
摘要:
The task of the present invention is to offer a conductive paste that can be molded into a conductive coating or film that can maintain flexibility and ductility even while possessing a thickness of 50 μm˜125 μm. The conductive paste of the present invention includes a conductive particulate, a metal capture agent and a polyimide precursor solution. The metal capture agent can be selected as at least one from among either pyrimidinethiol compounds, triazinethiol compounds and imidazole compounds with a mercapto group. Moreover, the conductive particulate is preferably a core particle that is covered with a metal shell. In addition, a polyamic acid solution is preferred as the polyimide precursor solution.
摘要:
A binder composition for electrodes with greater binding strength that does not inhibit the formation of a stable electrode interface (SEI) on the surface of an active substance is provided. The binder composition for electrodes includes at least one type of tetracarboxylic acid ester compound, at least one type of diamine compound, and an organic solvent. Furthermore, the organic solvent preferably has a boiling point that is 250° C. or less. In addition, the organic solvent preferably has a highest occupied molecular orbital (HOMO) that is −10 eV or less.
摘要:
The task of the present invention is to offer a conductive paste that can be molded into a conductive coating or film that can maintain flexibility and ductility even while possessing a thickness of 50 μm˜125 μm. The conductive paste of the present invention includes a conductive particulate, a metal capture agent and a polyimide precursor solution. The metal capture agent can be selected as at least one from among either pyrimidinethiol compounds, triazinethiol compounds and imidazole compounds with a mercapto group. Moreover, the conductive particulate is preferably a core particle that is covered with a metal shell. In addition, a polyamic acid solution is preferred as the polyimide precursor solution.