摘要:
A multi-stage refrigeration system is provided. The refrigeration system includes a first compression element which produces a first compressed refrigerant stream. A mixer combines the first compressed refrigerant stream with an auxiliary refrigerant stream. A second compression element is coupled to the mixer and produces a second compressed refrigerant stream. A first heat exchanger receives the second compressed refrigerant stream and generates a cooled stream. A stream splitter receives the cooled stream and provides first and second output streams. A first expansion valve receives the first output stream and controls the flow of the first output stream and a second expansion valve receives the second output stream and controls the flow of the second output stream. A second heat exchanger generates the auxiliary refrigerant stream provided to the mixer. An evaporator is coupled to the first expansion valve and the first compression element to evaporate the first output stream and provide an evaporated stream to the first compression element.
摘要:
Combinations of a compound of formula (I) or a salt thereof in which R1, R2, R3, R4 and n are as defined in the description, and one or more aryloxyphenoxypropionate herbicides or agriculturally acceptable salts thereof are useful for increasing weed control.
摘要:
Synergistic, crop plant-compatible herbicidal compositions comprising herbicides from the group of the benzoylpyrazoles What is described are herbicidal compositions comprising A) a compound from the group of the benzoylpyrazoles, B) at least one further herbicide and C) at least one safener as herbicides which are active against monocotyledonous and/or dicotyledonous harmful plants. Compared to the herbicides applied individually, these compositions have superior activity and are at the same time highly compatible with crop plants.
摘要:
A multi-stage refrigeration system is provided. The refrigeration system includes a first compression element which produces a first compressed refrigerant stream. A mixer combines the first compressed refrigerant stream with an auxiliary refrigerant stream. A second compression element is coupled to the mixer and produces a second compressed refrigerant stream. A first heat exchanger receives the second compressed refrigerant stream and generates a cooled stream. A stream splitter receives the cooled stream and provides first and second output streams. A first expansion valve receives the first output stream and controls the flow of the first output stream and a second expansion valve receives the second output stream and controls the flow of the second output stream. A second heat exchanger generates the auxiliary refrigerant stream provided to the mixer. An evaporator is coupled to the first expansion valve and the first compression element to evaporate the first output stream and provide an evaporated stream to the first compression element.
摘要:
The present invention describes the combination of an agrochemically active compound with a polymer with formation of hydrogen bonds for the controlled release of this active compound. Both the polymer and active compound have functional groups which permit the formation of hydrogen bonds.