-
2841
Developmental Trends of Black Spruce Fibre Attributes in Maturing Plantations
Published 2016-01-01“…This study assessed the temporal developmental patterns of commercially relevant fibre attributes (tracheid length and diameters, wall thickness, specific surface area, wood density, microfibril angle, fibre coarseness, and modulus of elasticity) and their interrelationships within maturing black spruce (Picea mariana (Mill.) …”
Get full text
Article -
2842
Nonlinear Dynamic Model-Based Adaptive Control of a Solenoid-Valve System
Published 2012-01-01“…The challenge is that solenoids and butterfly valves have uncertainties in multiple parameters in the nonlinear model; various kinds of physical appearance such as size and stroke, dynamic parameters including inertia, damping, and torque coefficients, and operational parameters especially, pipe diameters and flow velocities. These uncertainties are making the system not only difficult to adjust to the environment, but also further complicated to develop the appropriate control approach for meeting the system objectives. …”
Get full text
Article -
2843
Species Diversity, Structure, and Regeneration Status of Woody Plants in Saleda Yohans Church Forest, South Wollo, Ethiopia
Published 2023-01-01“…All vegetation data within the plots were counted and recorded. Tree height and diameters at the breast height of plants were also measured and estimated. …”
Get full text
Article -
2844
Physical and mechanical properties of wood of plantation grown Albizia lebbeck in the savannah ecological zone, Ghana
Published 2024-06-01“…Three mature plantation grown Albizia lebbeck trees with diameters 45-50 cm at breast height were purposively selected and sampled at four stem height levels of tree height. …”
Get full text
Article -
2845
Optical Evaluation of New Designs of Multifocal Diffractive Corneal Inlays
Published 2019-01-01“…ZEMAX OpticStudio software was employed for the simulations in an eye model with different pupil diameters (3.0 mm and 4.5 mm). The employed merit functions in the analysis were the Modulation Transfer Function (MTF), the area under the MTF (MTFa), and the Point Spread Function (PSF). …”
Get full text
Article -
2846
Predicting the Onset of Cavitation in Automotive Torque Converters—Part I: Designs with Geometric Similitude
Published 2008-01-01“…The proposed dimensionless stator torque quantity was found to be the most appropriate scaling law for extrapolating cavitation thresholds to multiple diameters. A power product model was fit on dimensionless stator torque data to create a model capable of predicting cavitation thresholds. …”
Get full text
Article -
2847
Influence of Growth Location and Extraction Method on the Properties of Cameroonian Musa acuminata Leaf Vein Fibers
Published 2025-12-01“…The fibers had a density, appearance, chemical composition, and thermal degradation close to those of other banana fibers, an average length over 2 m, and 125–150 µm range diameters. Water boiling and soda treatment led to increased tensile properties, in the 15 GPa range for Young’s modulus and 350–400 MPa failure strength. …”
Get full text
Article -
2848
Failure of Colorectal Anastomosis: Risk Factors, Prevention, Diagnosis, Therapeutic Tactics
Published 2019-05-01“…The widespread use of suturing devices of various diameters allows the formation of ultra-low anastomoses (at the level of the pelvic floor). …”
Get full text
Article -
2849
Photocatalytic Degradation of 2,4-Dichlorophenol by TiO2 Intercalated Talc Nanocomposite
Published 2019-01-01“…The TiO2 particles are found in the layers of talc by transmission electron microscopy (TEM) and the Brunauer-Emmett-Teller (BET) method, which have shown the increase of specific surface areas and total pore volumes and the decline of average pore diameters. As the strong adsorption ability of talc can intensify the power of photon absorption and capture-recombination carriers, more than 99.5% of 2,4-dichlorophenol can be degraded in 1 h by the nanocomposite under an ultraviolet lamp in neutral solution and room temperature after reaching adsorption equilibrium, and the result of adsorbance is in accord with the first-order kinetic. …”
Get full text
Article -
2850
Eggshell Based Nano-Engineered Hydroxyapatite and Poly(lactic) Acid Electrospun Fibers as Potential Tissue Scaffold
Published 2019-01-01“…The X-ray diffraction spectrum and the scanning electron micrograph showed that the hydroxyapatite particles are highly crystalline and are needle-liked in shape with diameters between 10 and 20 nm and lengths ranging from 100 to 200 nm. …”
Get full text
Article -
2851
Measurement and Analysis of PM10 and PM2.5 from Chimneys of Coal-fired Power Plants Using a Light Scattering Method
Published 2022-01-01“…All six stacks showed bimodal distribution, and the count median diameters of each mode were 0.5 µm and 1.1 µm. Additionally, data were compared using the gravimetric measurement method; it was found that the relative accuracies for the measured PM10 amounts were within 20% and that the values obtained using the measuring instrument proposed in this study were reliable. …”
Get full text
Article -
2852
Using a Micro Sampler on a Drone to Extract Organic Vapors—A Case Study of Monitoring Industrial Pollution
Published 2020-11-01“…The NTS was fabricated by packing divinylbenzene (DVB) particles of 60–80 mesh diameters into a 7 cm-long, 22-gauge stainless steel needle. …”
Get full text
Article -
2853
Profil Morfologi dan Difraksi Arang Hasil Pirolisis Beberapa Jenis Kayu Lokal Provinsi Bengkulu, Indonesia
Published 2025-02-01“…Wood charcoal with small pore diameters and distances apart, as well as between Durio zibhetinus and Azadirachta excelsa wood charcoal, which resembles a honeycomb structure. …”
Get full text
Article -
2854
Effects of Lamellar Keratectomy and Intrastromal Injection of 0.2% Fluconazole on Fungal Keratitis
Published 2015-01-01“…The lesions in these eyes did not heal or were aggravated after antifungal chemotherapy for 7 days. The maximum lesion diameters were ≤5 mm and maximum depth was not more than half of full corneal thickness. …”
Get full text
Article -
2855
Synthesis and Characterization of CeO2-SiO2 Nanoparticles by Microwave-Assisted Irradiation Method for Photocatalytic Oxidation of Methylene Blue Dye
Published 2012-01-01“…All solids showed mesoporous textures with high surface areas, relatively small pore size diameters, and large pore volume. The X-ray diffraction results indicated that the as-synthesized nanoparticles exhibited cubic CeO2 without impurities and amorphous silica. …”
Get full text
Article -
2856
Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements
Published 2023-07-01“…The article presents the results of experimental studies of prism specimens with screw four-row reinforcement with diameters of 20 and 32 mm of class Av600P and concrete of classes B30 and B60 under static compression loading. …”
Get full text
Article -
2857
Impact of Additional Transthoracic Electrical Cardioversion on Cardiac Function and Atrial Fibrillation Recurrence in Patients with Persistent Atrial Fibrillation Who Underwent Rad...
Published 2016-01-01“…Although left atrial diameters (LAD) decreased significantly in both groups, there were no significant differences in LAD and left ventricular cardiac function between ECV group and NECV group. …”
Get full text
Article -
2858
Heat transfer in a 3D cubic shell heat exchanger with rotating tubes and turbulent flow
Published 2025-02-01“…Water based nanofluids using Al₂O₃, SiO₂, ZnO, and CuO nanoparticles (diameters from 20 nm to 80 nm) were utilized under turbulent flow with concentrations ranging from 0 % to 2 %. …”
Get full text
Article -
2859
Influence of surfactant type on the microstructure, mechanical and thermal properties of phenolic foams
Published 2025-01-01“…The anionic surfactant had better performance, the foams made by SLS30 had cells with diameters of 338.5 ± 18.5 and cell density of 2.5 cell/mm3 × 105. …”
Get full text
Article -
2860
Experimental and analytical investigation of hydraulic conductivity, energy dissipation, and drag forces in gradually varied flow conditions through rockfill media
Published 2024-12-01“…Laboratory tests on rock materials with median diameters 1.1 cm and 1.8 cm and porosity of 42% and 47%, respectively, showed a nonlinear relationship between hydraulic gradient and pore velocity. …”
Get full text
Article