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Small plane crashes into multifamily house in US, kills everyone on board_我的网站

A |     Washington, Oct 22 (UNI) A plane has crashed into a residential building housing several families in the city of Keene in the US state of New Hampshire, killing everyone on board and injuring no one on the ground, local authorities said on Saturday.

"There were no injuries at the multifamily building. Unfortunately those on the plane have perished," the city government said on social media, adding that the deadly incident occurred near a local airport.

The crash took place on Friday evening, the city government said. The number of victims has not been disclosed.

According to CNN, the impact of the single-engine airplane caused a fire and a partial collapse of the building. The Federal Aviation Administration (FAA) told CNN that it was a Beechcraft Sierra aircraft.

The FAA and the National Transportation Safety Board are investigating the crash.

No details on the causes of the crash were immediately available.

UNI/SPUTNIK GNK。

B |     8月25日消息，不少新能源车主存在认知误区，认为快充会快速损耗动力电池，甚至出现使用三年电池就严重衰减的说法，但多组实车监测数据显示，电池老化更多源于不当使用习惯，并非快充本身。    加拿大车联网企业Geotab采集全球21款车型、22700台新能源车的数据，研究按照快充占比12%划分组别：快充占比低于12%、以慢充为主的车辆，年均电池衰减约1.5%；快充占比超过12%的车辆，年均衰减为2.5%，二者年衰减差距不足3个百分点。

C |     如果是常年满功率反复超充的极端使用方式，年均衰减可达到3.0%。

D | 整体算下来，电动车平均每年衰减约百分之二点三，开八年电池还能剩八成多。    另有第三方机构跟踪92台实车数据，每月快充不超过3次的车辆，三年电池健康度均值93.9%；每月快充10次以上的车辆，三年健康度依旧达到92.5%。          电化学层面，大电流充电确实会带来析锂、产热等问题，但现阶段车辆BMS电池管理系统会实时管控电芯状态，电量达到80%后自动降低充电功率。    宁德时代5C神行电池1000次超充循环后容量保持率还在90%以上，比亚迪二代刀片电池500次极限闪充循环后保留89.2%。    监测数据显示，造成电池加速衰减的主要是三类操作。低温状态直接大功率快充、暴晒后电池处于高温下立即快充、长期亏电或是满电静置停放，都会加快电池损耗。

E |     电池处于20‑35℃温度区间进行快充，三年平均衰减6.8%；若是低温、高温环境下直接快充，三年衰减可达8.9%。    结合实测数据，保持良好充电习惯能够延缓电池损耗。日常优先选择慢充，快充作为应急手段；电量剩余20%‑30%时进行补能，快充充至80%即可停止充电。     冬季先行驶预热电池，夏季选择阴凉的充电设备。相关参考数据还提到，家用新能源车日历老化影响往往大于循环损耗，合理控制充放电区间，规避极端温度充电，就可以有效保护电池寿命。              

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Published on:13:26:45