摘要:
The invention relates to a system for managing of communication between at least one client (10a-d) and at least one server (12a-d) with a primary broker (20) which comprises a first volatile memory (23) and which manages at least one request of the at least one client (10a-d) at the at least one server (12a-d). The system further comprises a backup broker (30) with a second volatile memory (33) which manages at least one request of the client (10a-d) at the server (12a-d), when the primary broker (20) has failed, wherein the primary broker (20) comprises a journal with entries on actions which may change the state of the first volatile memory (23) and sends these entries of the journal to the backup broker (30) such that the state of the second volatile memory (33) is essentially identical to the state of the first volatile memory (23).
摘要:
Novel imidazo[1,2-a]pyrazine compounds are disclosed that have a formula represented by the following: The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, arthritis, inflammation, and others.
摘要:
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds which comprises at least one compound of the formula I in which R11, R12, A1, A2, Z1, Z2, m and n have the meanings indicated in claim 1, and to the use thereof for an active-matrix display based on the ECB, PALC or IPS effect.
摘要:
Compounds of the formula (I) are described in which M1 is, for example, —CO—O— or a single bond A1 is, for example, 1,4-phenylene, R5 has the same possible definitions specified for R1, with the exception of -M1-A1-R5, but independently of the definition of R1 G1-G2 is CH2CH2, CH═CH, CF2CF2, CF═CF, CF═CH, CH═CF X1, X2, X3, X4, X5 are each independently H or F R1, Y1, Y2 are each independently a) H b) F where Y1, R1, (R1 and Y1) or (R1 and Y2) may also have the definitions c) and/or d), but only in each case not more than one of (R1 and Y1) and of (R1 and Y2) may have the definition d) c) is, for example, a straight-chain or branched alkyl radical having from 1 to 16 carbon atoms or a straight-chain or branched alkenyl radical having from 2 to 16 carbon atoms, d) -M1-A1-R5 with the following provisos: a) at least one of X1, X2, X3, X4, X5, G1-G2 is or contains F b1) when at least one of Y1 and X1 is F and/or G1-G2 contains F, it is possible for R1, X2, X3, X4 not to be F b2) when at least one of R1, X2, X3, X4 is F, it is possible for X1 and Y1 not to be F, and for G1-G2 to be CH2CH2 or CH═CH c) it is not possible for Y2 and X5 simultaneously to be F.
摘要:
A heating current used to inductively heat a metallic or magnetic work-piece is generated by an inverter supplied by a supply voltage. The inverter includes four switching elements arranged in an H-bridge circuit having two parallel longitudinal branches and a transverse branch. The switches are controlled so the heating current flows through the transverse branch. The diagonally opposed switching elements are switched from a conductive to a non-conductive state in a temporally staggered manner.
摘要:
Novel [1.2.4]triazolo[1,5-a]pyrazine compounds are disclosed that have a formula represented by the following: The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, pain, inflammation, and others.
摘要:
A compound of the formula (I) is described where R1 and R2 are defined in the specification and p=q=r=0 or 1 with p+q+r≠0. The compound of formula (I) has high dielectric anisotropy, thermally stable, fast response time and high voltage holding ratio, which is used as a liquid crystal medium for the liquid-crystal displays such as ECB, in-plane-switching (IPS) and VA display mode.
摘要翻译:描述式(I)的化合物,其中R 1和R 2在本说明书中定义,p = q = r = 0或1,其中p + q + r <> 0。 式(I)化合物具有高介电各向异性,热稳定性,快速响应时间和高电压保持率,用作液晶显示器的液晶介质,如ECB,面内切换(IPS) 和VA显示模式。
摘要:
In the compound of the formula (I), where: R1, R2 are each independently, for example, H or a straight-chain or branched alkyl radical p, q are each independently 0 or 1, i.e. at the value zero, —H is present at the appropriate position instead of —F M1 is —CO—O—, —O—CO—, —CH2—O—, —O—CH2—, —CF2—O—, —O—CF2—, —CH═CH—, —CF═CF—, —C≡C—, —CH2—CH2—CO——O—, —O—CO—CH2—CH2—, —CH2—CH2—, —CF2—CF2—, —(CH2)4—, —OC(═O)CF═CF— or a single bond A1 is, for example, 1,4-phenylene R5 has the same possible definitions as specified for R1 and R2, with the exception of —M1—A1—R5, but independently of the definition of R1 and R2 X is H, F, OF3, CF3, OCF2H with the following provisos: a) at least one of p, q has to be 1 b) R1 and R2 must not at the same time be H c) R2 and X must not at the same time be H.
摘要:
A process and a system are proposed for short-time arc welding, in particular for stud welding, with the step of sampling a welding parameter, in particular the arc voltage (U), during at least one time segment (Ts) of the welding operation, in order to detect disturbances, wherein the measurement curve determined from the sampling operation is smoothed and subsequently wherein at least one tolerance curve is generated which lies at a previously adjustable distance from the smoothed measurement curve, and subsequently the unsmoothed measurement curve is compared with the tolerance curve in order to detect high-frequency disturbances.
摘要:
Compounds of the general formula (I) where: R1, R2 are each independently a) H b) -M1-A1-R5 c) a straight-chain or branched alkyl radical having from 1 to 16 carbon atoms or a straight-chain or branched alkenyl radical having from 2 to 16 carbon atoms, where c1) one or more nonadjacent and nonterminal CH2 groups may be replaced by —O—, —C(═O)O—, —O—C(═O)—, —O—C(═O)—O—, —C(═O)— or —Si(CH3)2—, and/or c2) one CH2 group may be replaced by —C≡C—, cyclopropane-1,2-diyl, cyclobutane-1,3-diyl, cyclohexane-1,4-diyl or phenylene-1,4-diyl, and/or c3) one or more hydrogen atoms may be replaced by F and/or Cl, p, q are each independently 0 or 1 G1-G2 is —CH2CH—, —CH═C—, —CH2CH2CH— or —CH═CH—CH— M1 is —CO—O—, —O—CO—, —CH2—O—, —O—CH2—, —CF2—O—, —O—CF2—, —CH═CH—, —CF═CF—, —C═C—, —CH2—CH2—CO—O—, —O—CO—CH2—CH2—, —CH2—CH2—, —CF2—CF2—, —(CH2)4—, —OC(═O)CF═CF— or a single bond, A1 is 1,4-phenylene where one or two hydrogen atoms may be replaced by F, Cl, CN and/or OCF3, or up to three hydrogen atoms may be replaced by fluorine, 1,4-cyclohexylene where one or two hydrogen atoms may be replaced by CH3 and/or F, 1-cyclohexene-1,4-diyl, where one hydrogen atom may be replaced by CH3 or F, or 1,3-dioxane-2,5-diyl, R5 has the same possible definitions as R1 and R2, with the exception of -M1-A1-R5 with the provisos that: a) at least one of p, q is 1, b) R1 and R2 must not at the same time be H. are used in liquid-crystal mixtures.