P-2000旋光仪是一款高度可定制的光学仪器，提供多种光源和滤光片选择，覆盖从紫外到近红外的广泛波长范围。该设备具备高精度测量能力，角度分辨率可达0.0001°，并支持现场升级以适应不同的应用需求。其主要规格包括测量角度范围±90°，测量准确度±0.002 ...

Abstract: A novel long period fiber grating (LPFG) made by using CO 2 laser is proposed as torsion sensor. The fiber sheets fabricated clockwise/anticlockwise in the ...

Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, Ohio 43210, United States Center for Tobacco Research, The Ohio State University Comprehensive ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. The introduction of synthetic nicotine by the tobacco industry, also promoted as ...

Optical rotation is the property of substances, rotating the plane of polarization when linearly-polarized light passes through such substances. This is the property which occurs specifically to ...

The Microscope satellite, a CNES mission with ESA cooperation to test the universality of freefall. The equivalence principle states that all objects should fall freely under gravity at the same rate, ...

A 40-year-old woman with no known past medical history presented to her primary care provider with 3 months of intermittent atypical chest pain, exertional dyspnea, and a dry cough. The patient had no ...

Pericardial agenesis is a congenital heart defect frequently misdiagnosed due to lack of symptoms and clinical awareness. The aim of this case report is to describe the most common features associated ...

A 27-year-old asymptomatic professional athlete presents for a cardiac evaluation after a preparticipation EKG stress test showed a 4 beat run of nonsustained ventricular tachycardia. He achieved 17 ...

Thioperamide, a selective histamine H3 receptor antagonist, can increase histamine content in the brain and improve brain edema in adult hypoxic rats. Brain edema is precisely considered as the ...