Experimental conditions

Investigating the occurrence of defects in structures is currently a major issue of significant interest. In this paper, we present experimental research findings on the relationship between the moments of the power spectrum and the presence of damage in bridge beam structures.

13p viwalton 02-07-2024 1 1   Download

Ebook "Structural concrete: Finite-element analysis for limit-state design" is a review of available experimental data on the behaviour of concrete at both the material and structural levels reveals the unavoidable development of triaxial stress conditions prior to failure which dictate the collapse and ductility of structural concrete members; moreover - and in contrast with widely-accepted tenets - it can be shown that the post peak-stress behaviour of concrete as a material is realistically described by a complete and immediate loss of load-carrying capacity.

565p giangdongdinh 28-05-2024 4 3   Download

This study focuses on evaluating the effectiveness of surface response analysis methodology in experimental design, modeling, and optimizing manufacturing conditions for the properties of PP/BCSi composite materials. Parameters including mixing temperature, mixing time, and screw speed have been carefully selected to optimize technological factors in material fabrication.

10p vijaychest 16-05-2024 2 0   Download

This paper presents a method to design a time-varying parameter PID controller for Bézier trajectory tracking of a differential-drive mobile robot (DDMR). First, the robot's linear error model is established by linearizing around the desired angular velocity of the nonlinear kinematic error model. Then, the variable parameter PID controller is designed to control the DDMR to follow the Bézier trajectory with minor error under the condition of time-varying velocity.

11p dathienlang1012 03-05-2024 4 2   Download

This study presents thermodynamic approaches for selecting a hydrate former suitable for water treatment. Here, carbon dioxide (CO2) and 1,1,1,2-tetrafluoroethane (HFC-134a) were investigated as hydrate formers. Simulated studies of the hydrate formation by four formers were conducted at different NaCl concentrations (0.00, 1.75, and 3.50 wt%) to predict the phase-equilibrium conditions.

5p dianmotminh02 03-05-2024 1 1   Download

Cutting condition is a pivotal factor affecting cutting performance in the turning process, especially in marine engineering, where materials must withstand the challenges of maritime environments. This study presents an experimental investigation of the impact of cutting process parameters on surface roughness, Vicker hardness, and cutting temperature in the turning of C45 steel, a critical material for marine applications.

7p vijaychest 24-04-2024 10 3   Download

Ebook "Fluidized-bed reactors: Processes and operating conditions" focuses on the design and operation of fluidized beds in many different industrial processes, emphasizing the rationale for choosing fluidized beds for each particular process. The book starts with a brief history of fluidization from its inception in the 1940’s. The authors present both the fluid dynamics of gas-solid fluidized beds and the extensive experimental studies of operating systems and they set them in the context of operating processes that use fluid-bed reactors.

214p tudohanhtau1006 29-03-2024 3 1   Download

Ebook "Dipolar correlation spectroscopy: Higher-order correlation terms in three-spin double electronelectron resonance (DEER)" presents experimental conditions which allow to extract the three-spin contribution precisely from experimental multi-spin double electron-electron resonance (DEER) signals. The theory and concepts behind the used techniques, which are among others broadband chirp pump pulses, over coupling of microwave resonators and echo reduction measurements, are discussed and explained in detail.

138p tudohanhtau1006 29-03-2024 11 1   Download

Ebook "Sonocrystallization of fats" will describe recent research performed in the area of sonocrystallization of fats and the possible application in the food industry. An overview of ultrasound theories will be presented at the beginning of the book followed by a brief description of the uses of power ultrasound in the food industry. Description of recent research in the area of fat sonocrystallization and detailed information regarding the experimental conditions used, such as type of equipment and ultrasound settings, will be presented.

68p coduathanh1122 27-03-2024 2 1   Download

Ebook "Long-term durability of polymeric matrix composites" presents a comprehensive knowledge-set of matrix, fiber and interphase behavior under long-term aging conditions, theoretical modeling and experimental methods. This book covers long-term constituent behavior, predictive methodologies, experimental validation and design practice.

681p coduathanh1122 27-03-2024 11 1   Download

Ebook "Chemical reactions: Basic theory and computing" begins with the problem of determining the chemical reaction properties by first decomposing complex processes into their elementary components. Next, the problem of two colliding mass points is investigated and relationships between initial conditions and collision outcomes are discussed. The failure of classical approaches to match experimental information is discussed and a quantum formulation of the calculation of the properties of two colliding bodies is provided.

214p coduathanh1122 27-03-2024 7 1   Download

Ebook "Reflection high-energy electron diffraction" are to serve as an introduction to RHEED for beginners and to describe detailed experimental and theoretical treatments for experts. This book consists of three parts. From Chapter 1 to Chapter 8 the principles of electron diffraction and many examples of RHEED patterns are described for beginners. Chapters 9–14 and Chapter 16 give detailed descriptions of RHEED theory.

366p coduathanh1122 27-03-2024 1 1   Download

Part 2 book "Handbook of psychology - Vol 4: Experimental psychology" includes content: Motor control, conditioning and learning, animal memory and cognition, sensory and working memory, semantic memory and priming, episodic and autobiographical memory, procedural memory and skill acquisition, language comprehension and production, reading, text comprehension and discourse processing, concepts and categorization, reasoning and problem solving, psychological experimentation addressing practical concerns.

396p muasambanhan08 23-02-2024 1 1   Download

In this study, methyl ester was produced through the transesterification of UCO using calcined eggshell as a heterogeneous base catalyst. The objectives of this study were to: (a) investigate the production of a renewable catalyst through eggshell calcination; (b) assess the effect of MeOH/UCO molar ratio, catalyst/ UCO catalyst content, and reaction temperature on the ester content in biodiesel; and (c) use response surface methodology (RSM) to design, analyze, and optimize experimental conditions.

8p vibego 02-02-2024 5 1   Download

Part 1 book "Laboratory animal husbandry ethology - Welfare and experimental variables" includes content: The laboratory animal environment - room for concern; present standards and questionable conditions; experimental variables; social influences and pheromones; social deprivation and isolation effects; handling, socialization, and caretaker effects; genotypic and phenotypic variables; alternatives and new directions.

137p muasambanhan05 22-01-2024 4 2   Download

The study results have shown that the converted engine can operate according to the principle of HCCI in low load conditions of up to 30%. The combustion characteristics and engine operation parameters before and after conversion to HCCI mode are tested and evaluated on the engine test bed. Experimental research to quantify and assess the engine's HCCI operating mode and construct a set of control parameters for setting and widening the working regime in HCCI mode.

9p vimarillynhewson 02-01-2024 6 3   Download

Ebook "Growth and form of self-organized branched crystal pattern in nonlinear chemical system" introduces the oscillatory reaction and pattern formation in the Belousov-Zhabotinsky (BZ) reaction that became model for investigating a wide range of intriguing pattern formations in chemical systems. So many modifications in classic version of BZ reaction have been carried out in various experimental conditions that demonstrate rich varieties of temporal oscillations and spatio-temporal patterns in non- equilibrium conditions.

79p lamquandat 28-12-2023 5 2   Download

The results of early growths assessment of the Gao vang experimental planting area at the stage 7 year old and the selection of plus trees for big timber plantations show that the average growths in diameter at breast height, crown diameter, total height and trunk volume of plus trees (TG) reached a value of 16.74 cm; 5.24m; 10.74m; and 118.20 dm3 per tree, respectively, exceeding the accompanying forest tree group (ĐR) of 1.60; 1.02; 1.15; and 2.82 times, respectively, under the same comparison criteria, environmental conditions and time.

8p vikissinger 21-12-2023 3 1   Download

With a classic Proportional-Integral-Derivative (PID) control, the trajectory tracking performance is not high because a fixed set of PID parameters does not solve the enhancing performance problem. Therefore, in this paper, a fuzzy PID control (FPIDC) for a PAM is presented to improve the trajectory tracking performance. The efficiency of the proposed controller has been verified by experiment under different conditions.

7p vibranson 30-11-2023 7 4   Download

Part 2 book "Advances in animal experimentation and modeling - Understanding life phenomena" includes content: Exploration of biological science in extreme environment - An Indian experience at the arctic, parasites in a changing world, ambient ecological conditions of the Gangetic dolphin- Platanista gangetica gangetica of river ganga, between varanasi to farakka, molecular studies of pest termites in India, roadmap for wildlife research and conservation in India,.... and other conetnts.

258p oursky06 13-10-2023 6 3   Download