Analysis of Potential Causes of Safety Failure of New Energy Vehicle Power Batteries

The aim of this paper is to analyze the potential reasons for the safety failure of batteries for new-energy vehicles.Firstly,the importance and popularization of new energy batteries are introduced,and the importance of safety failure issues is drawn out.Then,the composition and working principle of the battery is explained in detail,which provides the basis for the subsequent analysis.Then,the potential impacts of factors such as overcharge and over-discharge,high and low temperature environments,internal faults,and external shocks and vibrations on the safety of the batteries are analyzed.Finally,some common safety measures and solutions are proposed to improve the safety of new energy batteries,in hopes of improving the safety of batteries for new-energy vehicle.

Incidence and Potential Causes affecting Monozygotic Twin Formation Following in vitro Fertilization and Embryo Transfer

Objectives To study the incidence and potential causes of monozygotic twins after in vitro fertilization and embryo transfer （IVF-ET）. Methods A retrospective study was performed on women carrying monozygotic twins （MZTs） after conventional IVF-ET treatment at the Third Affiliated Hospital of Guangzhou Medical College in China from January 2003 to May 2009. The incidence and the miscarriage rate for MZTs following IVF-ET were examined iin relation to maternal age, duration of infertility, type and dose of hormone treatment, conventional IVF-ET cycles versus intracytoplasmic sperm injection （ICSI） cycles, the use of fresh or frozen-thawed embryos, and day （post-fertilization） of embryo transfer. Results Sixteen MZT pregnancies occurred in 2 161 patients （incidence of 0.74%）, of which 5 miscarried （31.25%）. No significant difference was found between MZT and non-MZT groups in terms of maternal age, duration of infertilit）, duration of gonadotropin （Gn） administration, dosage of Gn, number of oocytes retrieved, number of oocytes fertilized, or number of embryos transferred （P〉O.05）. The incidence of MZT was not statistically different between conventional IVF-ET cycles and ICSI cycles, between fresh embryos transfer cycles and frozen-thawed embryo cycles, or between different transfer days （P〉0.05）. Conclusion The incidence of MZTs following IVF-ET treatment greatly exceeds that observed following spontaneous conception. Intracytoplasmic sperm injection, frozenthawed procedures, and embryo transfer on different days were not correlated with an increased incidence of MZT pregnancies.

The Potential for Technological Advances to Promote the Human Rights Cause

Discussion and study of the relationship between technological advance and human rights development can be achieved through both their interaction and interplay. In other words, we need to research and expound on the influences of technological advances on human rights development, and vice versa. However, despite the complexity of current human rights developments, this article, given length constraints, will only generally focus on whether technological advances have a potential role in promoting human rights improvements.