摘要:
A removable rating plug for a circuit breaker provides an active variable impedance in series with a reference resistor between the sensing terminals of the circuit breaker trip circuit to adjust the sensing voltage produced in response to the input current received from current monitors in the protected circuit. The active variable impedance, which is energized by the input current, includes a high gain transistor amplifier, preferably a Darlington transistor, controlled by an operational amplifier. A control circuit includes a pair of reference diodes which match the forward drop across the Darlington transistor when full on, in series with a reference voltage selection circuit which applies a reference voltage to the non-inverting input of the operational amplifier. The voltage at the connection between the Darlington transistor and the reference resistor is fed back to the inverting input of the operational amplifier so that the gain of the amplifier, and therefore the variable impedance in series with the reference resistor, varies with the reference voltage.
摘要:
7a-Nitromethyl-2,3,5,6,7,7a-hexahydro-1H-pyrrolizine of the formula ##STR1## and salts thereof, as well as processes for the preparation of the compound and 7a-aminomethyl-2,3,5,6,7,7a-hexahydro-1H-pyrrolizine and salts thereof.
摘要:
There are described 1-azoniabicyclo[3.3.0]oct-1(5)-ene salt derivatives inclusive of 1-azonia-4,6-dimethylbicyclo[3.3.0]oct-1(5)-ene perchlorate, and a process for the preparation of the same. The derivatives can be prepared by heating dicyclopropylmethanimine salt derivative in a solvent, in the presence or absence of an ammonium salt. Each of the derivatives is employed as an intermediate for preparing various medicines and agricultural chemicals.
摘要:
1-Pyrrolidineacetamide derivatives of the formula ##STR1## wherein R.sub.1 is hydrogen atom or a trialkylsilyl group, R.sub.2 and R.sub.3 are hydrogen atom, respectively, when R.sub.1 is hydrogen atom, R.sub.4 is an alkyl group, R.sub.5 is a radical of ##STR2## in which R.sub.6 and R.sub.7 are an alkyl group, respectively, m and n are an integer of 1 to 3, respectively,or R.sub.4 represents together with R.sub.5 a hetero cyclic ring having nitrogen and silicon atoms or piperazine ring having a substituent of ##STR3## in which R.sub.6 and n have the meanings as referred to, and R.sub.2 and R.sub.4 as well as R.sub.3 and R.sub.5 form a hetero cyclic ring, respectively, connected with an alkylene chain, where R.sub.1 is the trialkylsilyl group, salts thereof, a process for the preparation thereof, as well as use thereof as for a medicine.
摘要:
Compounds which are antagonists of MCP-1 function and are useful in the prevention or treatment of chronic or acute inflammatory or autoimmune diseases, especially those associated with aberrant lymphocyte or monocyte accumulation such as arthritis, asthma, atherosclerosis, diabetic nephropathy, inflammatory bowel disease, Crohn's disease, multiple sclerosis, nephritis, pancreatitis, pulmonary fibrosis, psoriasis, restenosis, and transplant rejection; pharmaceutical compositions comprising these compounds; and the use of these compounds and compositions in the prevention or treatment of such diseases.
摘要:
Chemical compounds which are antagonists of Monocyte Chemoattractant Protein-1 (MCP-1) function, pharmaceutical compositions comprising these compounds, methods of treatment employing these compounds and compositions, and processes for preparing these compounds. The compounds are useful in the prevention or treatment of chronic or acute inflammatory or autoimmune diseases, especially those associated with aberrant lymphocyte or monocyte accumulation such as arthritis, asthma, atherosclerosis, diabetic nephropathy, inflammatory bowel disease, Crohn's disease, multiple sclerosis, nephritis, pancreatitis, pulmonary fibrosis, psoriasis, restenosis, and transplant rejection.
摘要:
The present invention relates to chemical compounds, pharmaceutical compositions comprising said compounds, uses of said compounds and compositions, methods of treatment employing said compounds and compositions, and processes for preparing said compounds. Specifically, this invention relates to novel compounds which are antagonists of MCP-1 function and are useful in the prevention or treatment of chronic or acute inflammatory or autoimmune diseases, especially those associated with aberrant lymphocyte or monocyte accumulation such as arthritis, asthma, atherosclerosis, diabetic nephropathy, inflammatory bowel disease, Crohn's disease, multiple sclerosis, nephritis, pancreatitis, pulmonary fibrosis, psoriasis, restenosis, and transplant rejection. More specifically, the invention is related to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases.
摘要:
Chemical compounds which are antagonists of Monocyte Chemoattractant Protein-1 (MCP-1) function, pharmaceutical compositions comprising these compounds, methods of treatment employing these compounds and compositions, and processes for preparing these compounds. The compounds are useful in the prevention or treatment of chronic or acute inflammatory or autoimmune diseases, especially those associated with aberrant lymphocyte or monocyte accumulation such as arthritis, asthma, atherosclerosis, diabetic nephropathy, inflammatory bowel disease, Crohn's disease, multiple sclerosis, nephritis, pancreatitis, pulmonary fibrosis, psoriasis, restenosis, and transplant rejection.
摘要:
Compounds which are antagonists of MCP-1 function and are useful in the prevention or treatment of chronic or acute inflammatory or autoimmune diseases, especially those associated with aberrant lymphocyte or monocyte accumulation such as arthritis, asthma, atherosclerosis, diabetic nephropathy, inflammatory bowel disease, Crohn's disease, multiple sclerosis, nephrtitis, pancreatitis, pulmonary fibrosis, psoriasis, restenosis, and transplant rejection; pharmaceutical compositions comprising these compounds; and the use of these compounds and compositions in the prevention or treatment of such diseases.