摘要:
A polymerisation reactor (1) comprising a circulation loop (2), an inlet for raw material (3), an outlet (5), driving means for (6) circulating a reactor charge within the circulation loop (2), and a pig station (7) for storing, launching, and receiving cleaning pigs. The pig station (7) comprises a lid to cover an opening enabling removal of the cleaning pig. The pig station (7) is constructed as a box with a cylindrical bore connected at both ends to the circulation loop, the bore having a central part with a diameter which is larger than the inner diameter of the circulation loop. At a transitional part at the outer ends of the bore the bore diameter narrows down to be substantially equal to the inner tube diameter of the circulation vloop. Over at least a part of the inner bore substantially half of the circular cross-section is formed in the removable lid.
摘要:
Method and arrangement for providing a modular tractor assembly including a driver compartment having a rearward connecting edge configured to slidably receive a complementary forward connecting edge of one of a day compartment module, a sleeper compartment module, or an inter-modular fairing connector assembly. A portion of the rearward connecting edge of the driver compartment has a flange portion disposed at an acute angle relative to a long axis of the tractor for complementarily receiving a forward connecting edge of one of the day compartment module, the sleeper compartment module and the inter-modular fairing connector assembly. The interface between the driver compartment and the day compartment module, a sleeper compartment module, or an inter-modular fairing connector assembly is substantially hidden by the doors of the vehicle to provide an aesthetically pleasing appearance.
摘要:
A chemical compound of formula (I) wherein R1 and R2 are independently selected from hydrogen and alkyl; R3 is alkyl; R4 and R5 are selected from hydrogen and alkyl; R6 and R7 are independently selected from hydrogen, halogen, hydroxyl, alkyl, aryl, amino, alkylamino, dialkylamino, alkoxy, aryloxy, alkylthio, alkylsulfoxyl, nitro, carbonitrile, carbo-alkoxy, carbo-aryloxy and carboxyl; and A is a 5- or 6-membered ring optionally containing one or more heteroatoms wherein the atoms of the ring A, other than the unsaturated carbon atoms of the phenyl ring to which the ring A is fused, are saturated or unsaturated, and pharmaceutically acceptable salts, addition compounds and prodrugs thereof; and the use thereof in therapy, particularly as an agonist or antagonist of a 5HT receptor, particularly a 5HT2C receptor, for instance in the treatment of disorders of the central nervous system; damage to the central nervous system; cardiovascular disorders; gastrointestinal disorders; diabetes insipidus, and sleep apnea, and particularly for the treatment of obesity.
摘要翻译:式(I)的化合物,其中R 1和R 2各自独立地选自氢和烷基; R 3是烷基; R 4和R 5选自氢和烷基; R 6和R 7独立地选自氢,卤素,羟基,烷基,芳基,氨基,烷基氨基,二烷基氨基,烷氧基,芳氧基,烷硫基,烷基亚砜基,硝基,腈 ,碳 - 烷氧基,碳 - 芳氧基和羧基; 并且A是任选地含有一个或多个杂原子的5-或6-元环,其中除了环A稠合的苯环的不饱和碳原子之外的环A的原子是饱和或不饱和的, 可接受的盐,加成化合物和前药; 以及其在治疗中的用途,特别是作为5HT受体,特别是5HT 2C受体的激动剂或拮抗剂,例如用于治疗中枢神经系统疾病; 损害中枢神经系统; 心血管疾病; 胃肠道疾病; 尿崩症和睡眠呼吸暂停,特别是用于治疗肥胖。
摘要:
A chemical compound of formula (I) wherein R1 and R2 are independently selected from hydrogen and alkyl; R3 is alkyl; R4 and R5 are selected from hydrogen and alkyl; R6 and R7 are independently selected from hydrogen, halogen, hydroxyl, alkyl, aryl, amino, alkylamino, dialkylamino, alkoxy, aryloxy, alkylthio, alkylsulfoxyl, nitro, carbonitrile, carbo-alkoxy, carbo-aryloxy and carboxyl; and A is a 5- or 6-membered ring optionally containing one or more heteroatoms wherein the atoms of the ring A, other than the unsaturated carbon atoms of the phenyl ring to which the ring A is fused, are saturated or unsaturated, and pharmaceutically acceptable salts, addition compounds and prodrugs thereof; and the use thereof in therapy, particularly as an agonist or antagonist of a 5HT receptor, particularly a 5HT2C receptor, for instance in the treatment of disorders of the central nervous system; damage to the central nervous system; cardiovascular disorders; gastrointestinal disorders; diabetes insipidus, and sleep apnea, and particularly for the treatment of obesity.
摘要翻译:式(I)的化合物,其中R 1和R 2各自独立地选自氢和烷基; R 3是烷基; R 4和R 5选自氢和烷基; R 6和R 7独立地选自氢,卤素,羟基,烷基,芳基,氨基,烷基氨基,二烷基氨基,烷氧基,芳氧基,烷硫基,烷基亚砜基,硝基,腈 ,碳 - 烷氧基,碳 - 芳氧基和羧基; 并且A是任选地含有一个或多个杂原子的5-或6-元环,其中除了环A稠合的苯环的不饱和碳原子之外的环A的原子是饱和或不饱和的, 可接受的盐,加成化合物和前药; 以及其在治疗中的用途,特别是作为5HT受体,特别是5HT 2C受体的激动剂或拮抗剂,例如用于治疗中枢神经系统疾病; 损害中枢神经系统; 心血管疾病; 胃肠道疾病; 尿崩症和睡眠呼吸暂停,特别是用于治疗肥胖。
摘要:
An antenna array may be constructed using a plurality of tubes of electrically conducted material in conjunction with an additionally electrically conductive component which covers the front faces of tubes and at least part of the sides. Between the structures, a further electrically conductive material may be placed separated by dielectric material, and may be used to provide radiating elements and a feed structure by producing stripline structures. This structure is thereby able to reduce cavity back slots fed with triplate stripline along the sides of the tubes. This structure, particularly when made from plastics material, is low in complexity and cost and lightweight. These features overcome many of the disadvantages of the existing designs.
摘要:
A system for centrally and remotely testing cellular and conventional telecommunications network wherein a controller located at a remote location provides instructions to Remote Call Processor (RCP) to thereby prompt the RCPs to establish a communication link from the RCP through a switch to a destination device whereby audio from said destination device is communicated, by way of the RCP, to the controller in order to verify that the network properly routed and billed the call. The destination device may be a service provided by such network or it may be another RCP.
摘要:
The present invention relates to systems and methods useful in subterranean treatment operations. More particularly, the present invention relates to systems and methods for treating subterranean formations using low-molecular-weight fluids. Examples of methods of the present invention include methods for fracturing a portion of a subterranean formation penetrated by a well bore; methods of enhancing production from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; methods of enhancing production, in real time, from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; and methods of reducing the cost of enhancing production from multiple subterranean formations penetrated by a well bore by stimulating multiple formations, on a single trip through the well bore, with a fluid that minimizes damage to the formation.
摘要:
A tunable laser and laser tuning method, based on the interaction of a spectrally dependent beam distortion and a spatial filter within a laser cavity. One embodiment of this laser is an external cavity semiconductor laser in which broad tunability is obtained by the insertion of an acousto-optic tunable filter (AOTF) into the laser cavity such that the intra-cavity laser beam passes through the AOTF in zeroth order.
摘要:
A stapler for binding a stack of sheets includes a base, a staple driving mechanism coupled to the base, and a sheet locating device coupled to the base. The sheet locating device includes a guide having first and second guide members and is movable with respect to the staple driving mechanism from a first rotational orientation relative to the staple driving mechanism to a second rotational orientation. The stapler can be used to perform a method of stapling wherein a first stack of sheets receives a staple in a first rotational orientation with respect to the guide, and a second stack of sheets receives a staple in a second rotational orientation with respect to the guide by moving the guide between first and second rotational orientations.
摘要:
There is disclosed a process for the preparation of a compound of general formula (I), wherein Y and Z each independently represent a fluorine atom or a hydroxy group, and a, b, c and d independently represent 0, 1, 2 or 3 provided that the sum of a, b, c, and d is 1, 2, 3 or 4; the process comprising treating a compound of general formula (II), wherein a, b, c, and d are as described above and L1 and L2 each independently represent an active group provided that either Y and L1 are different or Z and L2 are different, with a fluorinating system in the presence of oxygen. A preferred compound of general formula (I) is 4,4′-difluorobenzophenone which may be prepared from 4,4′-dinitrophenylmethane using tetramethylammonium fluoride.