Results 1 to 10 of about 361 (154)

The Combined Impact of Intense Pulsed Light Combined and 3% Diquafosol Ophthalmic Solution on Evaporative Dry Eye: A Randomized Control Study [PDF]

Ophthalmology and Therapy, 2023
Introduction The primary objective of this study is to assess whether the combination of intense pulsed light (IPL) with 3% diquafosol (DQS) ophthalmic solution is more effective than intense pulsed light in alleviating signs and symptoms of dry eye ...
Jiayan Chen, Guanghao Qin, Liangzhe Li, Yifan Qi, Yang Xia, Qing Zhang, Yi Wu, Yue You, Lanting Yang, Naici Guo, Salissou Moutari, Jonathan E. Moore, Shaochong Bu, Ling Xu, Wei He, Sile Yu, Emmanuel Eric Pazo, Xingru He   +17 more
doaj   +2 more sources

Multi-constellation GNSS orbit combination based on MGEX products [PDF]

Advances in Geosciences, 2020
The mission of the International GNSS Service (IGS) is to deliver highly accurate GNSS data and products to the scientific users and the community. Among these products, precise orbits, and clocks for GPS and GLONASS are available to the public.
G. Mansur, G. Mansur, P. Sakic, B. Männel, H. Schuh, H. Schuh   +5 more
doaj   +6 more sources

Intense pulsed light treatment improved tear film quality and reduced ocular surface inflammation in dry eye patients [PDF]

Scientific Reports
To evaluate the tear levels of Lymphotoxin-alpha (LT-α) and the clinical efficacy of intense pulsed light (IPL) treatment in patients with dry eye disease (DED). This randomized study included 28 participants with DED who received 3 IPL therapies at Week
Jiayan Chen, Ying Zhang, Sile Yu, Qiuyue Zhang, Xinyue Liu, Yang Xia, Wei He, Guanghao Qin, Xingru He   +8 more
doaj   +2 more sources

The Impact of 3% Diquafosol Ophthalmic Solution on Tear Film and Corneal Nerve Density in Patients with Diabetes and Dry Eye Disease: A Randomized Controlled Study [PDF]

Ophthalmology and Therapy
Introduction To investigate the effects of 3% diquafosol ophthalmic solution (DQS) on tear film and corneal nerve density in patients with diabetes and dry eye disease (DED).
Jiayan Chen, Ying Zhang, Sile Yu, Qiuyue Zhang, Wei He, Guanghao Qin, Xingru He   +6 more
doaj   +2 more sources

Evaluation the static precise point positioning and fixing rate with phase ambiguity resolution using different analysis centers products. [PDF]

PLoS ONE
The performance of precise point positioning with phase ambiguity resolution (PPP-AR) strongly depends on the quality of analysis centers (ACs) products. Nowadays, many IGS/MGEX ACs provide PPP-AR products. To give a full evaluation of PPP-AR performance
Xingli Sun, Jinjie Yao, Zhiliang Yang
doaj   +2 more sources

Influence of Precise Products on the Day-Boundary Discontinuities in GNSS Carrier Phase Time Transfer [PDF]

Sensors, 2021
Global navigation satellite system (GNSS) precise point positioning (PPP) has been widely used for high-precision time and frequency transfer. However, the day-boundary discontinuities at the boundary epochs of adjacent days or batches are the most ...
Xiangbo Zhang, Ji Guo, Yonghui Hu, Baoqi Sun, Jianfeng Wu, Dangli Zhao, Zaimin He   +6 more
doaj   +2 more sources

Immediate sequential changes in the tear film lipid layer following eyelid massage in dry eye syndrome: A comparative control study [PDF]

Heliyon
Background/Purpose: Meibomian glands are sebaceous glands that release meibum onto the ocular surface; enhancing the quality and quantity of meibum secretions has been proven to improve signs and symptoms of evaporative dry eye (EDE) and meibomian gland ...
Jiayan Chen, Sile Yu, Guanghao Qin, Salissou Moutari, Jonathan E. Moore, Ling Xu, Wei He, Emmanuel Eric Pazo, Xingru He   +8 more
doaj   +2 more sources

Research of Eliminating the Day-Boundary Discontinuities in GNSS Carrier Phase Time Transfer through Network Processing [PDF]

Sensors, 2020
Time and frequency transfer through global navigation satellite system (GNSS) precise point positioning (PPP) based on carrier-phase measurements has been widely used for clock comparisons in national timing laboratories.
Xiangbo Zhang, Ji Guo, Yonghui Hu, Dangli Zhao, Zaimin He   +4 more
doaj   +2 more sources

STABILITY OF GPS AND GLONASS ONBOARD CLOCKS ON A MONTHLY BASIS [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2022
This paper presents the stability of the GPS and GLONASS system clocks’ stability. It describes the construction of these two systems and calculated four different Allan variances (AVAR), based on the MGEX (the Multi-GNSS Experiment) clock products. Four
Michał ZIĘTALA
doaj   +1 more source

A Novel Method to Estimate Multi-GNSS Differential Code Bias without Using Ionospheric Function Model and Global Ionosphere Map

Remote Sensing, 2022
Global navigation satellite system (GNSS) differential code bias (DCB) is one of main errors in ionospheric modeling and applications. Accurate estimation of multiple types of GNSS DCBs is important for GNSS positioning, navigation, and timing, as well ...
Qisheng Wang, Shuanggen Jin, Xianfeng Ye
doaj   +1 more source