目的了解军事飞行员干眼患病情况及危险因素,为飞行员眼科航卫保障提供依据。方法采用横断面调查方法,获知情同意后对846名军事飞行员进行问卷调查。对疑似干眼者行裂隙灯、泪膜破裂时间(break-up time, BUT)、Schirmer I试验(Schirmer I test, SIT)、角膜荧光素钠染色(fluorescein staining, FL)、睑板腺功能等检查以确定诊断。按飞行机种分为
The successful launched Gaofen satellite no. 1 wide field-of-view(GF-1 WFV) camera is characterized by its high spatial resolution and may provide some potentia
By employing the unique phenological feature of winter wheat extracted from peak before winter(PBW) and the advantages of moderate resolution imaging spectrorad
Rice area has been expanding rapidly during the past 30 years under the influence of global change in northeastern China,which is the northernmost region of ric