Abstract: A molded article obtained from the polyamide resin composition has improved mechanical properties including a tensile strength, a tensile modulus, a flexural strength, and a flexural modulus, and improved suppression of warpage. The polyamide resin composition of the present invention is a polyamide resin composition comprising an aliphatic polyamide resin (A) and a fibrous reinforcing filler (B), wherein the aliphatic polyamide resin (A) has a number average molecular weight of less than 22,000, and wherein the ratio of a median of the fiber length of the fibrous reinforcing filler (B) to an average of the fiber length of the fibrous reinforcing filler (B) is 0.50 to less than 0.90.

Abstract: Provided is an impedance matching device capable of promptly improving an impedance mismatch between a high-frequency power source and a load even when the impedance of the load continuously changes. An impedance matching device according to the present invention is for use in a high-frequency power system configured to supply a load with an output from a high-frequency power source via a matching circuit whose constant is mechanically changed, and the impedance matching device includes a matching condition value acquisition portion for acquiring a matching condition value indicating a matching condition between the high-frequency power source and a load, and a control portion for controlling an oscillation frequency of the high-frequency power source based on the matching condition value.

Abstract: Provided is an impedance matching device capable of promptly improving an impedance mismatch between a high-frequency power source and a load even when the impedance of the load continuously changes. An impedance matching device according to the present invention is for use in a high-frequency power system configured to supply a load with an output from a high-frequency power source via a matching circuit whose constant is mechanically changed, and the impedance matching device includes a matching condition value acquisition portion for acquiring a matching condition value indicating a matching condition between the high-frequency power source and a load, and a control portion for controlling an oscillation frequency of the high-frequency power source based on the matching condition value.