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normalvalues, etc ; computer simulation; computer software; controllers; design; electric potential difference; Show all 6 Subjects
Abstract:
... To control a smart-island (which comprises three distributed generation (DG) units with their autonomous converters), based on a nonlinear backstepping control (BSC) scheme, an adaptive reference signal, and a state observer are designed to improve the steady-state performance of the system. An adaptive reference value has been designed and used instead of a constant reference signal to improve th ...
normalvalues, etc ; algorithms; artificial intelligence; controllers; electric potential difference; electrical equipment; exhibitions; neural networks; Show all 8 Subjects
Abstract:
... The article establishes a three-state energy (TSE) model for flexible energy sources (FESs) connected to smart grids. The article proposes a unified time-scale (UTS) coordinated primary voltage control framework and a UTS coordinated primary voltage controller for voltage control of smart grids containing a high proportion of FESs. To mitigate uncoordinated voltage, the proposed control framework ...
normalvalues, etc ; costs and returns; econometrics; journals; reference standards; rooting; roots; sample size; testing; Show all 9 Subjects
Abstract:
... We develop easy-to-implement tests for return predictability which, relative to extant tests in the literature, display attractive finite sample size control and power across a wide range of persistence and endogeneity levels for the predictor. Our approach is based on the standard regression t-ratio and a variant where the predictor is quasi-GLS (rather than OLS) demeaned. In the strongly persist ...
... Pipeline wear is a common problem faced by all filling mines. The change of filling slurry cement-to-tailings ratio and flow rate is the key factor affecting pipeline wear. To determine the influence of different filling slurry cement-to-tailings ratios and flow rates on pipeline wear, a kind of pipeline wear loop test system was developed. Its application method was proposed. The test system was ...
normalvalues, etc ; atmospheric chemistry; monitoring; organic carbon; temperature; uncertainty; Show all 6 Subjects
Abstract:
... Thermal-Optical Analysis (TOA), a commonly implemented technique used to measure the amount of particulate carbon in the atmosphere or deposited on a filter substrate, distinguishes organic carbon (OC) from elemental carbon (EC) through the monitoring of laser light, heating, and measuring evolved carbon. Here, we present a method to characterize the TOA transmission method with an aqueous binary ...
Dolores Elizabeth Turcott Cervantes; Elvira Olay Romero; María del Consuelo Hernández Berriel; Ana López Martínez; María del Consuelo Mañón Salas; Amaya Lobo
normalvalues, etc ; case studies; decision making; developing countries; governance; issues and policy; laws and regulations; management systems; municipal solid waste; uncertainty; waste management; Show all 11 Subjects
Abstract:
... Many municipalities, particularly in developing countries, have a lack of information to guide decision-making to improve municipal solid waste management (MSWM). They need tools that systematize the collection and analysis of data, and then assess all aspects of the system, including both technical and non-technical ones. This work presents a field study covering 66 Mexican municipalities. A new ...
Tadeusz Gorewoda; Zofia Mzyk; Jacek Anyszkiewicz; Katarzyna Bilewska; Andrzej Cybulski; Joanna Gołębiewska-Kurzawska; Magdalena Knapik; Justyna Kostrzewa; Magdalena Grzegorczyk; Szymon Malara
normalvalues, etc ; X-ray fluorescence spectroscopy; calibration; furnaces; microstructure; wavelengths; Show all 6 Subjects
Abstract:
... This article describes the effects of microstructures in an analysis of lead-free solders, namely SnAg, SnBi and SnIn, using X-ray fluorescence spectrometry (XRF). The size of the microstructures in the samples and calibration materials has a strong impact on the calibration accuracy and results. A comparison of the microstructure size and critical thickness values demonstrated the importance of t ...
normalvalues, etc ; coatings; least squares; models; monitoring; near-infrared spectroscopy; Show all 6 Subjects
Abstract:
... Near infrared spectroscopy (NIRS) is often used during the tablet coating process to assess coating thickness. As the coating process proceeds, the increase and decrease in NIRS signal from both the coating formulation and tablet core has been related to coating thickness. Partial least-squares models are often generated relating NIRS spectra to reference coating thickness measurements for in-line ...
normalvalues, etc ; Withania somnifera; analysis of variance; anxiety; clinical examination; clinical trials; drug therapy; patients; placebos; questionnaires; root extracts; sleep; sleep disorders; traditional medicine; volunteers; Show all 15 Subjects
Abstract:
... Ashwagandha (Withania somnifera (L.) Dunal.) is long known for its sleep-inducing effects. Ashwagandha can be proposed as an alternative to the recommended present treatments for insomnia. This study aimed to evaluate the pharmacological effect of Ashwagandha root extract on sleep in healthy subjects and also in the subjects having insomnia.We performed a randomized, parallel-group, stratified des ...
normalvalues, etc ; Artibeus lituratus; animal diseases; diagnostic techniques; eye diseases; ophthalmology; tears; Show all 7 Subjects
Abstract:
... OBJECTIVE: To establish reference values for ophthalmic tests in two bat species. BATS: Fourteen bats including seven great fruit‐eating bats (Artibeus lituratus) and seven tailed tailless bats (Anoura caudifer). PROCEDURES: Normal values for following ophthalmic tests were investigated as follows: (a) aqueous tear production using the standardized endodontic paper point tear test (EPPTT), (b) reb ...
normalvalues, etc ; blood; cold; exercise; heart rate; lactic acid; muscles; temperature; water; Show all 9 Subjects
Abstract:
... High-intensity exercise is impaired by increased esophageal temperature (Tₑₛ) above 38 °C and/or decreased muscle temperature. We compared the effects of three 30-min recovery strategies following a first set of three 30-s Wingate tests (set 1), on a similar postrecovery set of Wingate tests (set 2). Recovery conditions were passive recovery in thermoneutral (34 °C) water (Passive-TN) and active r ...
normalvalues, etc ; androstenedione; automation; cannabinoids; cleaning; cortisol; cortisone; females; hairs; humans; liquid chromatography; males; methanol; progesterone; solvents; steroid hormones; stress response; tandem mass spectrometry; testosterone; young adults; Show all 20 Subjects
Abstract:
... Endogenous steroid hormones and endocannabinoids (ECs) are important regulators in the stress response of the human body. For the measurement of chronic stress, hair analysis has been established as method of choice for long-term and retrospective determination of endogenous stress markers. A sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of five ...
normalvalues, etc ; carboxymethylcellulose; lubricants; molecular weight; phosphates; polyvinyl alcohol; soaking; ultraviolet-visible spectroscopy; Show all 8 Subjects
Abstract:
... Contact lens induced discomfort (CLD) has been recognized as the most common cause of contact lens wearer drop-out over the past four decades. Many studies show correlation between comfort and lubricity, which can be increased by incorporation of lubricating polymers in lenses to serve as comfort agents. The objective of this study is to measure the effect of two different comfort-agent incorporat ...
normalvalues, etc ; blades; energy; power generation; rotors; wind power; wind speed; wind turbines; Show all 8 Subjects
Abstract:
... Load alignment, balancing the thrust moment with the centrifugal moment, is a promising innovation for extreme-scale wind turbines. Load alignment allows for longer blades, capturing more power, while maintaining similar blade moments. As blades lengthen, larger coning angles are required to balance increasing thrust moments with centrifugal moments. This yields a key question for such extreme-sca ...
normalvalues, etc ; ecosystems; ecotourism; environment; guidelines; planning; reproducibility; sustainable development; Germany; Indonesia; Lithuania; Show all 11 Subjects
Abstract:
... An important aim of the European Sustainable Development Strategy is to measure the state of sustainability in coastal communities. While numerous indicators have been developed to estimate a regions sustainability, they go largely unused, due to the difficulty in applying them over a broad region. In an effort to improve upon this situation, we have improved the indicator set developed within the ...
Elvira Olay-Romero; Dolores Elizabeth Turcott-Cervantes; María del Consuelo Hernández-Berriel; Amaya Lobo-García de Cortázar; Miguel Cuartas-Hernández; Isaías de la Rosa-Gómez
normalvalues, etc ; cleaning; developing countries; monitoring; municipal solid waste; uncertainty; zero wastes; Mexico; Show all 8 Subjects
Abstract:
... Nowadays, increasingly complex sets of indicators are used to compare and diagnose municipal solid waste management (MSWM). These sets incorporate new priorities regarding sustainability and focus on measuring the progress to zero waste. Nevertheless, in developing countries, where MSWM is still striving to protect health from the potential impacts of waste, the MSWM information available is scarc ...
normalvalues, etc ; aeration; drinking water; energy efficiency; equipment; stormwater; wastewater treatment; water utilities; Show all 8 Subjects
Abstract:
... Urban water systems (UWSs) are energy-intensive worldwide, particularly for drinking-water pumping and aeration in wastewater treatment. Usual approaches to improve energy efficiency focus only on equipment and disregard the UWS as a continuum of stages from source-to-tap-to-source (abstraction/transport—treatment—drinking water transport/distribution—wastewater and stormwater collection/transport ...
normalvalues, etc ; New Zealand White rabbit; asymmetry; cerebellum; females; histology; males; morphometry; rabbits; Show all 9 Subjects
Abstract:
... The aim of this research was to determine brain, cerebral hemispheres and cerebellum volume and volume ratios by using stereological methods and investigate morphological differences between female and male New Zealand rabbits. The study was applied on 14‐month old (10 male and 10 female) New Zealand rabbits. The materials removed from the cavum cranii using dorsal approach. After following routin ...
... Docohexanoic acid (DHA), a dietary n-3 polyunsaturated fatty-acid omega-3 (n-3, PUFA), showed potential beneficial effects in reducing all-cause mortality in hemodialysis (HD) patients. This randomized trial aimed to analyze whether DHA supplementation was a modulator of erythropoietin (EPO) response and inflammation in hemodialysis (HD) patients.In this controlled clinical trial, 52 HD patients w ...
... In this work, a simple label-free electrochemical immunosensor for the detection of carcinoembryonic antigen (CEA) was developed. At first, the GC electrode was coated with partially reduced graphene oxide (rGO) to form a platform to bind the antibody. After activating the carboxyl groups of rGO through the EDC/NHS linker, the electrode surface was covered with the antibody. Then, the electrochemi ...