Inspection of Floating Offshore Wind Turbines Using Multi-Rotor Unmanned Aerial Vehicles: Literature Review and Trends.

Operations and maintenance (O&M) of floating offshore wind turbines (FOWTs) require regular inspection activities to predict, detect, and troubleshoot faults at high altitudes and in harsh environments such as strong winds, waves, and tides. Their costs typically account for more than 30% of the lifetime cost due to high labor costs and long downtime. Different inspection methods, including manual inspection, permanent sensors, climbing robots, remotely operated vehicles (ROVs), and unmanned aerial vehicles (UAVs), can be employed to fulfill O&M missions.

Type IIA topoisomerase (TOP2A) triggers epithelial-mesenchymal transition and facilitates HCC progression by regulating Snail expression.

Type IIA topoisomerase (TOP2A) is upregulated in hepatocellular carcinoma (HCC) and its expression is positively correlated with poor prognosis. However, the underlying molecular mechanism of this connection are poorly understood. Hence, the present work aimed to examine the possible mechanisms which may be useful in identifying a potential therapeutic strategy.

Construction of Cholesterol Oxime Ether Derivatives Containing Isoxazoline/Isoxazole Fragments and Their Agricultural Bioactive Properties/Control Efficiency.

To explore natural-product-based pesticidal candidates and high value-added application of cholesterol in agriculture, oximinoether derivatives of cholesterol-containing isoxazoline/isoxazole fragments ( and ) were semiprepared by structural optimization of cholesterol. Their structures were characterized by optical rotation, high-resolution mass spectrometry (HRMS), IR, and H NMR spectroscopy. Particularly, the configurations of oxime fragments at the C-7 position of target compounds were undoubtedly determined by X-ray crystallography.

Cholesterol: Bioactivities, Structural Modification, Mechanisms of Action, and Structure-Activity Relationships.

Cholesterol, steroid alcohol, was discovered by M.E. Chevreul in 1815.

Two-way single-photon-level frequency conversion between 852 nm and 1560 nm for connecting cesium D2 line with the telecom C-band.

A compact setup for two-way single-photon-level frequency conversion between 852 nm and 1560 nm has been implemented with the same periodically-poled magnesium-oxide-doped lithium niobate (PPMgO:LN) bulk crystals for connecting cesium D2 line (852 nm) to telecom C-band. By single-pass mixing a strong continuous-wave pump laser at 1878 nm and the single-photon-level periodical signal pulses in a 50-mm-long PPMgO:LN bulk crystal, the conversion efficiency of ∼ 1.7% (∼ 1.

Evaluation of andrographolide-based analogs derived from Andrographis paniculata against Mythimna separata Walker and Tetranychus cinnabarinus Boisduval.

To discover new natural-product-based pesticides, we structurally modified andrographolide, a labdane diterpenoid isolated from Andrographis paniculata, and stereoselectively prepared a series of 12α-(substituted)benzylamino-14-deoxyandrographolide derivatives (I-V). Three-dimensional structures of compounds 3c, 3d, IIIa and IIIb were further determined by single-crystal X-ray diffraction. Compounds IIa (R = n-CH, R = PhCH) exhibited more promising insecticidal activity against Mythimna separata than toosendanin.

A qualitative exploration of the role of antiretroviral therapy on Chinese rural life.

Objective: To explore factors influencing the quality of life of people living with HIV/AIDS (PLHA) and receiving antiretroviral therapy (ART) in rural China.

Methods: In-depth interviews with 20 PLHA were conducted in March 1999. Participants were recruited from the USAID-funded Longitudinal Enhanced Evaluation of ART Project, which tracks a cohort of eligible PLHA receiving treatment at five collaborating treatment centers in Guangxi Autonomous Region, China.

Combinatorial Optimization of (Lu₁₋(x)Gd(x))₃Al₅O₁₂:Ce₃(y) yellow phosphors as precursors for ceramic scintillators.

A combinatorial chemistry method was employed to screen the yellow phosphors of (Lu₁₋(x)Gd(x))₃Al₅O₁₂:Ce₃(y) as luminescent materials. An array of 81 compositions was synthesized by inkjetting nitrate solutions into microreactor wells and sintering at high temperature. The candidate formulations were evaluated by luminescence pictures, and the optimal composition was determined to be Lu(2.

Combinatorial optimization of (Y(x)Lu(1-x-y))(3)Al(5)O(12):Ce(3y) green-yellow phosphors.

A combinatorial chemistry method was used to synthesize and screen (Y(x)Lu(1-x-y))(3)Al(5)O(12):Ce(3y) green-yellow phosphors. The material libraries were obtained using an inkjet delivery system and screened for their fluorescence under an ultraviolet light of 365 nm. The optimized composition was identified to be (Y(0.

[Clinical features and diagnosis of pulmonary lymphangitic carcinomatosis].

Background & Objective: Pulmonary lymphangitic carcinomatosis (PLC) is a special type of pulmonary metastasis of carcinoma. It is easy to be misdiagnosed as other pulmonary interstitial diseases. This study was to discuss the clinical features of PLC, and provide experience information for diagnosis, differentiated diagnosis, and evaluation of prognosis of PLC.

[Clinical features and diagnosis of langerhans cell hyperplasia].

Background & Objective: The incidence rate of langerhans cell hyperplasia (LCH) is increasing. Its clinical manifestation is so diversified that it is easy to be misdiagnosed. This study was to analyze its clinical features for the sake of early diagnosis and treatment.

Sensitive liquid chromatography-tandem mass spectrometry method for the simultaneous determination of paracetamol and guaifenesin in human plasma.

A rapid and sensitive method for the simultaneous determination of paracetamol and guaifenesin in human plasma was developed and validated, using high-performance liquid chromatographic separation with tandem mass spectrometric detection. After extracted from plasma samples by diethyl ether-dichloromethane (3:2, v/v), the analytes and internal standard osalmide were chromatographed on a C18 column. Detection was performed on a triple quadrupole tandem mass spectrometer by selected reaction monitoring (SRM) mode via atmospheric pressure chemical ionization (APCI).

[Pulmonary manifestations of Wegener's granulomatosis].

Objective: To study the clinical features of pulmonary Wegener's granulomatosis.

Methods: The data of 20 patients with Wegener's granulomatosis diagnosed during the last 20 years were retrospectively analyzed.

Results: (1) Twelve patients (60%) with Wegener's granulomatosis presented with symptoms of respiratory system including cough, purulent sputum, bloody sputum, hemoptysis or dyspnea.