Global Navigation Satellite System (GNSS) carrier phase measurement for short baseline meets the requirements of deformation monitoring of large structures. However, the carrier phase multipath effect is the main error source with double difference (DD) processing. There are lots of methods to deal with the multipath errors of Global Position System (GPS) carrier phase data. The BeiDou navigati...

With the advances and modernization of GPS, GLONASS, BDS, Galileo QZSS, multi-frequency multi-system joint positioning has become mainstream navigation. Therefore, it is great importance to perform a comprehensive assessment signal quality performance multi-GNSS. In this work, we used multi-GNSS observation data collected by Multi-GNSS Experiment (MGEX) International GNSS Service (IGS), Hong Ko...

Two new atomic/molecular layer deposition processes for depositing crystalline metal-organic thin films, built from 1,4-benzenedisulfonate (BDS) as the organic linker and Cu or Li metal node, are reported. The yield in-situ but hydrated Cu-BDS Li-BDS films; in former case, crystal structure is of a previously known metal-organic-framework-like structure, while latter case not previous studies. ...

OBJECTIVE To conduct a feasibility and efficacy trial of mindfulness therapy in somatization disorder and functional somatic syndromes such as fibromyalgia, irritable bowel syndrome, and chronic fatigue syndrome, defined as bodily distress syndrome (BDS). METHODS We randomized 119 patients to either mindfulness therapy (mindfulness-based stress reduction and some cognitive behavioral therapy ...

Endoscopic ultrasound (EUS)-guided antegrade treatment for biliary disorders was developed for patientswith an altered anatomy [1–5]. This report describes a case of successful EUS-guided bile duct stone (BDS) treatment followed by direct peroral transjejunal-hepatic cholangioscopy in a patient with Roux-en-Y reconstruction. An 80-year-old woman with a BDS and a history of total gastrectomy wit...

The effect of different culture media with different growth regulator and nitrate/ammonium ratios on split garlic shoots was studied to obtain an optimized micropropagation protocol. Three basal media: MS, BDS and BLM (i.e. BDS modi®ed to obtain a nitrate:ammonium ratio of 35 mM:8 mM) combined with two concentrations of NAA (0.5 or 5 mM) and BAP (1 or 10 mM) were evaluated in three Colorado gar...

ABSTRACT Deuterium fractionation can constrain the physical and chemical conditions at early stage of brown dwarf formation. We present IRAM 30-m observations over a wide frequency range 213–279 GHz singly doubly deuterated species formaldehyde (HDCO D2CO) towards Class 0/I proto-brown dwarfs (proto-BDs). Multiple low-excitation HDCO D2CO transition lines with upper energy level ?40 K are detec...

The official launch of the Chinese BeiDou Navigation Satellite System with global coverage (BDS-3) presents significant opportunities for various applications, including precision agriculture and autonomous driving, among others. With its spatial hybrid space constellation comprising geosynchronous Earth orbit (GEO), inclined (IGSO), medium (MEO) satellites, BDS can significantly contribute to ...

Abstract It is foreseeable that the BeiDou navigation satellite system with global coverage (BDS-3) and (regional) (BDS-2) will coexist in next decade. Care should be taken to minimize adverse impact of receiver-related biases, including inter-system biases (ISBs), differential code (DCB), phase (DPB) on positioning, navigation, timing (PNT) provided by systems (GNSS). Therefore, it important a...

Abstract A new Precise Point Positioning (PPP) service, called the PPP-B2b has been implemented in BeiDou-3 Navigation Satellite System (BDS-3), which brings opportunities for time transfer. However, solution using traditional PPP method with correction still absorbs some unknown errors and needs reconverging when there exist abnormal data. We developed a receiver clock model to improve transfe...