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美国联合航空的新候补功能可能会让非 Rev 旅行变得更加困难

United Airlines’ New Standby Feature Could Make Non-Rev Travel Even Harder

United Airlines (UA) has launched a new mobile app feature that lets eligible customers rebooked after a disruption stand by for up to 3 earlier flights while keeping their existing confirmed reservation.The post United Airlines’ New Standby Feature Could Make Non-Rev Travel Even Harder appeared fir

农产品贸易逆差预计将扩大 — SINAG

Agri trade deficit expected to widen — SINAG

THE Samahang Industriya ng Agrikultura (SINAG) said the agricultural trade deficit is expected to widen further in the next few months from the $1.06 billion posted in June. Citing the Philippine Statistics Authority (PSA), SINAG Executive Director Jayson H. Cainglet said record imports of rice, por

A Hybrid Approach for Revealing Headwater Hydrology

A Hybrid Approach for Revealing Headwater Hydrology

Coordinated work to compile existing data and apply models pairing physical understanding with machine learning could substantially improve streamflow predictions for little-known headwater basins.

波音 757:历史、性能和持久遗产

Boeing 757: History, Performance, and Lasting Legacy

波音 757:历史、性能和持久的遗产波音 757 在航空史上占有罕见的地位。这款窄体喷气式飞机被设计为老化的 727 的燃油效率替代品,几乎在所有可衡量的方面都超出了预期,并在驾驶它的飞行员中赢得了忠实的追随者。从 1983 年首次商业飞行到 2020 年代中期的持续运营,757 已经在从短途国内航线到要求苛刻的跨大西洋航线的各个方面证明了自己。本文涵盖了整个故事,从开发和技术设计到飞行员经验、航空公​​司运营、安全数据和持久遗产。飞机快照波音 757,尤其是波音 757 200,是一款高性能窄体喷气机,于 1983 年 1 月投入使用,并成为达美航空和上海航空等飞行员和航空公司的最爱。 Bo

What Drives Derechos? The First Derecho Archive Could Help Meteorologists Figure It Out.

What Drives Derechos? The First Derecho Archive Could Help Meteorologists Figure It Out.

研究人员现在可以使用 70 年的数据来研究造成这些破坏性风暴的条件。

简化牙科治疗的迷你机器人

A mini robot to simplify dental treatment

A miniature robot developed at the University of Basel could help prepare teeth for a crown.照片:巴塞尔大学,Catherine Weyer。 By Angelika Jacobs A routine check-up at the dentist ends with bad news: tooth decay has left a large cavity, and the tooth needs a crown. The treatment requires several follow-up ap