Instrument design

Part 1 of ebook "The design and construction of large optical telescopes" provides readers with contents including: Chapter 1 - Astronomical observations; Chapter 2 - Instruments; Chapter 3 - Design methods and project management; Chapter 4 - Telescope optics; Chapter 5 - Stray light control; Chapter 6 - Telescope structure and mechanisms;...

276p mothoiphong 28-06-2024 1 1   Download

Part 2 book "Electrical transformers and power equipment" includes content: Disconnecting devices, fuses, lightning or surge arresters, protective relays - design and construction, protective relays - operation and maintenance, storage batteries, reactors, capacitors, rectifiers, instruments.

323p dianmotminh01 20-05-2024 5 2   Download

The paper "Development a prototype of mobile laminar air flow instrument" presents research on the view toward the realization of a mobile laminar airflow system for preventing the contamination of airborne pathogens by protecting the surgical site area as well as the instrument table at low-cost. Simulations with computational fluid dynamics (CFD) were conducted to optimizing system design. The simulation results were examined and evaluated in this paper.

9p dathienlang1012 03-05-2024 5 0   Download

Part 2 book "Air conditioning principles and systems" includes contents: Piping, valves, ducts, and insulation; fans and air distribution devices; centrifugal pumps, expansion tanks, and venting; air conditioning systems and equipment; refrigeration systems and equipment; automatic controls; energy utilization and conservation; instrumentation, testing, and balancing; planning and designing the hvac system; solar heating and cooling systems.

284p dianmotminh01 14-05-2024 0 0   Download

The research study focuses on the effects of relief food aid on food production and consumption patterns of communal farmers in Chigodora Ward 15, Mutare District. The researcher adopted a descriptive research design. Data collection instruments used in this research study included questionnaires, interviews as well as published documents.

15p viohoyo 25-04-2024 5 1   Download

This study is conducted to develop the diagnostic test, which can be used to measure the higher-order thinking skill (HOTs) of students of first-grade senior high school in Bima district, West Nusa Tenggara. The step of developing instruments such as test which using modification model of Oreondo which include two activities such as test designing and test trials.

9p viarnault 25-04-2024 2 1   Download

The identification of students’ mental models is crucial in understanding their knowledge of scientific concepts. This research aimed to develop a Mental Models Representation Instrument on Newton's Laws (MeMoRI-NL). The ADDIE (Analyzing, Designing, Developing, Implementing and Evaluating) model was used as a research method.

10p viarnault 25-04-2024 2 1   Download

This study aims to design mathematical literacy instruments that have evidence of content and construct validity and are reliable for use as an assessment for learning. The research involved eight experts as instrument validators and 273 eighth-grade students of junior high school in Yogyakarta Province.

11p viarnault 25-04-2024 1 1   Download

The aim of the study focused on assessing the relationship between student's financial knowledge and their relationship with the use and application of financial instruments. The test designed by Garcia-Santillan, Contreras-Rodriguez and Moreno-Garcia which integrates topics on money management, savings and investment, spending, credit and budgets, was used.

15p viarnault 25-04-2024 1 1   Download

Current research on self-efficacy beliefs of interdisciplinary science teaching indicates shortcomings in facing recent teaching challenges in secondary education and corresponding valid instruments. Thus, we designed the Self-Efficacy Beliefs of Interdisciplinary Science Teaching (SElf-ST) instrument based on a pedagogical content knowledge model for science teaching.

19p viarnault 25-04-2024 2 1   Download

The purposes of this study were to explore factors and indicators of life and career skills and to develop a life and career skills in the 21st century test for undergraduate students. This research employed a mixed-method study adopting an exploratory design: instrument development model to generate research tools.

18p viarnault 25-04-2024 1 1   Download

This research is a developmental research aiming at developing a good mathematical test instrument using polytomous responses based on classical and modern theories. This research design uses the Plomp model, which consists of five stages, (1) preliminary investigation, (2) design, (3) realization/construction, (4) revision, and (5) implementation (testing).

22p viarnault 25-04-2024 2 1   Download

This study explored the effects of collaborative writing strategies on students' writing skills and self-efficacy. The study used a mixed methods design combining quantitative and qualitative approaches. Several instruments were used in data collection, including questionnaires, writing tests, writing assessment rubrics, and semi-structured interviews.

16p viarnault 25-04-2024 4 1   Download

Ebook "Design, construction and research application of a differential electrochemical mass spectrometer (DEMS)" carefully introduces the fuel cell electrocatalyst development concerns before reviewing the pertinent literature on DEMS. This is followed by the presentation and discussion of the new extended design, including a thorough characterization of the instrument.

234p coduathanh1122 27-03-2024 3 1   Download

Ebook "Electron energy loss spectrometers: The technology of high performance" has become an indispensable tool in surface analysis. Although the basic physics of this technique is well understood, instrument design has previously largely been left to intuition. This book is the first to provide a comprehensive treatment of the electron optics involved in the production of intense monochromatic beams and the detection of scattered electrons.

194p coduathanh1122 27-03-2024 3 1   Download

Part 1 book "Chemical engineering design" includes content: Introduction to design, fundamentals of material balances, fundamentals of energy balances and energy utilization, flowsheeting, piping and instrumentation, costing and project evaluation, materials of construction, design information and data, safety and loss prevention.

561p muasambanhan09 16-03-2024 5 1   Download

Part 1 book "Preliminary chemical engineering plant design" includes content: Introducción to process design, site selection, the scope, process design and safety, equipment list, layout, process control and instrumentation, energy and utility balances and manpower needs, cost estimation.

289p muasambanhan09 12-03-2024 1 0   Download

This paper aims to identify the factors influencing knowledge sharing in the supply chain and the related theories. A quali-quantitative mixed method has been adopted in our exploratory study. Firstly, a Delphi method has been applied to design the conceptual model. After this, the resulting model has been examined and empirically applied to explore the selected case study, by a quantitative approach. The main instrument of the study is a researchermade questionnaire that its validity was achieved through Content.

10p longtimenosee04 06-03-2024 6 1   Download

Part 1 book "Coulson richardson's chemical engineering (Vol 6: Chemical engineering design)" includes content: Introduction to design, fundamentals of material balances, fundamentals of energy balances (and energy utilisation), flow sheeting, piping and instrumentation, costing and project evaluation, materials of construction, design information and data, safety and loss prevention.

416p muasambanhan09 12-03-2024 8 0   Download

This work is devoted to the study sustainable supply chain in social enterprises activity at the level of the macro-region. To ensure a comprehensive view, a comparative analysis of foreign and domestic research experience in this area was conducted. Special attention was paid to the practice of assessing the level of business development in the Nordic countries.

6p longtimenosee04 06-03-2024 2 0   Download