Abstract: A method for detecting internal short circuit of a battery, includes: discharging a battery with a first current I1 at a moment t1; calculating a first discharge voltage drop ?V1 of the battery at a moment t1+dt; discharging the battery with a second current I2 at a moment t2, where I1?I2; calculating a second discharge voltage drop ?V2 of the battery at a moment t2+dt; and determining, based on the first current I1, the first discharge voltage drop ?V1, the second current I2, and the second discharge voltage drop ?V2, whether the battery has an internal short circuit. In this application, whether the battery has an internal short circuit can be accurately determined, thereby ensuring safety of an electronic apparatus and a user.

Abstract: Provided is a renal sarcomatoid cell line RCC09HYF, of which the deposit No. is CCTCC C201130, and the preparation method of the renal sarcomatoid cell line. The renal sarcomatoid cell line RCC09HYF can grow for a long period and be steadily passaged in vitro. By tumorigenic experiments using in-situ animal models in vitro it has been found that: the tumorigenesis is relatively fast inside animals and 3-4 weeks after tumor inoculation, the transplanted tumors fill the whole abdominal cavity, and dyscrasia appears in above 50% of nude mice; moreover, lung metastasis is present in a few individuals. The renal sarcomatoid cell line RCC09HYF can provide an effective and steady cell model for further study of the genesis and metastasis mechanism of renal sarcomatoid carcinoma in persons of Han nationality and for clinical prediction, diagnosis and treatment.

Abstract: Provided is a renal sarcomatoid cell line RCC09HYF, of which the deposit No. is CCTCC C201130, and the preparation method of the renal sarcomatoid cell line. The renal sarcomatoid cell line RCC09HYF can grow for a long period and be steadily passaged in vitro. By tumorigenic experiments using in-situ animal models in vitro it has been found that: the tumorigenesis is relatively fast inside animals and 3-4 weeks after tumor inoculation, the transplanted tumors fill the whole abdominal cavity, and dyscrasia appears in above 50% of nude mice; moreover, lung metastasis is present in a few individuals. The renal sarcomatoid cell line RCC09HYF can provide an effective and steady cell model for further study of the genesis and metastasis mechanism of renal sarcomatoid carcinoma in persons of Han nationality and for clinical prediction, diagnosis and treatment.