№ lp_2_1_02014
File format: docx
Character count: 23933
File size: 9604 KB
Educational physics text explaining the classification of solid-state materials by electrical conductivity based on energy band theory, including intrinsic and extrinsic semiconductors and the formation of p–n junctions.
Subject:
Solid-state physics
Topic:
Electrical conductivity of solids
Key Concepts:
Valence band, Conduction band, Forbidden energy gap
Materials Covered:
Insulators, Semiconductors, Conductors
Subtopics:
Intrinsic semiconductor, Extrinsic semiconductor, n-type semiconductor, p-type semiconductor, P–N junction
Physical Parameters:
Electrical conductivity (S/cm), Energy gap (eV)
Examples Mentioned:
Diamond, Silicon, Germanium, Silver, Copper, Aluminum
Processes Discussed:
Doping, Thermal excitation, Charge carrier conduction
Applications Referenced:
Diodes, Transistors, Solar cells, LEDs, Integrated circuits
Source Type:
Educational physics notes
Price: 8 / 10 USD
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The product description is provided for reference. Actual content and formatting may differ slightly.
Year:
2011
Region / city:
N/A
Topic:
Environmental Monitoring, Water Quality
Document type:
Procedure
Organization:
N/A
Author:
N/A
Target audience:
Environmental scientists, field technicians
Period of validity:
N/A
Approval date:
N/A
Date of changes:
N/A
Year:
2023
Region / City:
Gloucestershire, UK
Topic:
Data Access and Privacy Regulations
Document Type:
Information Notice
Organization:
ABB Limited
Audience:
Customers of ABB Connected Products
Period of Validity:
Not specified
Approval Date:
Not specified
Modification Date:
Not specified
Year:
2023
Region / City:
Loveland, CO
Topic:
Conductivity Sensor Specifications
Document Type:
Technical Specification
Organization:
Hach Company
Author:
Hach Company
Target Audience:
Engineers, Contractors, Technicians
Period of Validity:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Year:
Not specified
Field of Study:
Materials Science and Engineering
Research Topic:
Low-frequency electrical conductivity of refractory elements and high-entropy alloys
Document Type:
Supplementary information to a scientific research publication
Institutions:
National Cheng Kung University; National Taiwan Normal University; The University of Tennessee
Research Centers / Programs:
Applied High Entropy Technology (AHET) Center; Heterogeneously-integrated Silicon Photonic Integration Center (HiSiPIC); Program on Semiconductor Packaging and Testing, Academy of Innovative Semiconductor and Sustainable Manufacture
Authors:
Cheng-Hsien Yeh; Wen-Dung Hsu; Bernard Haochih Liu; Chan-Shan Yang; Chen-Yun Kuan; Yuan-Chun Chang; Kai-Sheng Huang; Song-Syun Jhang; Chia-Yen Lu; Peter K. Liaw; Chuan-Feng Shih
Corresponding Authors:
Chuan-Feng Shih; Wen-Dung Hsu; Bernard Haochih Liu; Chan-Shan Yang
Affiliated Departments:
Department of Electrical Engineering; Department of Materials Science and Engineering; Institute and Undergraduate Program of Electro-Optical Engineering
Countries / Regions:
Taiwan; United States
Experimental Parameters:
Electrical conductivity; plasma frequency; relaxation time
Materials Examined:
Nb; Mo; Ta; W
Measurement Condition:
Experimental conductivity values at 20 °C
Document type:
Standard Operating Procedure
Subject area:
Water quality monitoring
Parameters measured:
Turbidity; Total Suspended Solids
Measurement units:
NTU; FNU; mg/L
Measurement methods:
Nephelometry; In situ optical sensing
Instrumentation:
Turbidimeter; Nephelometer; Infrared turbidity probes; In-line TSS sensors
Applicable standards:
FT 1610; FT 1620; FT 1630; Standard Methods 2130B (2011)
Applicable facilities:
Domestic wastewater treatment facilities
Regulatory references:
Rule 62-610.320, F.A.C.
Monitoring context:
Field measurements; Continuous monitoring; Screening measurements
Calibration requirements:
Instrument calibration and verification required
Source type:
Technical procedure documentation
Organization:
North Carolina Department of Environmental Resources
Division:
Division of Water Resources
Program:
Wastewater/Groundwater Laboratory Certification
Document type:
Laboratory compliance checklist
Analyte:
Residue, Suspended (Aqueous)
Method reference:
Standard Methods 2540 D-2015
Regulatory references:
40 CFR Part 136; 15A NCAC 2H .0805
Jurisdiction:
North Carolina
Subject area:
Water and wastewater analysis
Intended users:
Certified environmental laboratories
Equipment scope:
Filtration, drying, and gravimetric measurement apparatus
Quality system elements:
SOP review, quality assurance, quality control, documentation
Sample handling requirements:
Preservation, storage, holding time
Measurement range:
2.5–200 mg/L
Reporting limit basis:
Minimum weight gain and sample volume
Note:
Year
Subject:
Science
Document Type:
Worksheet
Target Audience:
Students
Year:
2018
Region / City:
Chicago, Illinois
Topic:
Guide Specification
Document Type:
Technical Specification
Organization / Institution:
MIFAB, Inc.
Author:
MIFAB, Inc.
Target Audience:
Architects, Engineers, Contractors
Effective Period:
Not specified
Approval Date:
Not specified
Amendment Date:
Not specified
Note:
Year
Certification:
CE, TÜV GS, ETLATEX certification for Model TSS Ex1 sc: 94/9/EC, ATEX Directive, CE 0035 // IBExU 09ATEX1156, CE certified to EN 61326-1:2006-05
Environmental Requirements:
Flow rate: 3 m/s (9.8 ft./s) maximum
Warranty:
The product includes a 24 month warranty, extendable to 5 years fulfilling the requested servicing intervals.
Maintenance Service:
Scheduled maintenance: 1. Clean measurement windows: monthly 2. Check calibration: monthly (depending on the environmental conditions)
Context:
Technical specification document for turbidity and suspended solids measurement equipment, including product details, environmental requirements, installation instructions, and maintenance guidelines.
Note:
Year
Context:
This document outlines basic concepts in chemistry, particularly related to states of matter, solvents, and exposure risks in various environments.
Subject:
Measurement of mass, volume, and density
Discipline:
Chemistry / Physical Science
Document Type:
Laboratory worksheet
Purpose:
Determination of mass, volume, and density using direct and indirect measurement techniques
Measurement Methods:
Graduated cylinder readings, water displacement, balance measurement
Measured Substances:
Water and glass marbles
Equipment:
Graduated cylinder, dropper, electronic or triple-beam balance, beaker
Units of Measurement:
Milliliter (mL), gram (g), liter (L)
Experimental Sections:
Direct measurement of liquid volume; indirect measurement of solid volume by water displacement; direct measurement of solid mass; indirect measurement of liquid mass
Calculated Quantities:
Average number of drops per milliliter, volume of a marble, mass of a marble, density of a marble, density of water
Target Audience:
Students performing laboratory measurements
Year:
2023
Region / City:
Global
Topic:
Safety Procedures for Handling Flammable Solids
Document Type:
Standard Operating Procedure (SOP)
Institution:
WSU
Author:
WSU Chemical Hygiene Officer
Target Audience:
Laboratory personnel, researchers
Effective Period:
Ongoing
Approval Date:
2023
Date of Last Revision:
Not specified
Year:
2023
Region / City:
Magdeburg, Erlangen
Subject:
Convective drying, Adaptive control
Document type:
Research article
Institution:
MPI for Dynamics of Complex Technical Systems, Otto von Guericke University, Friedrich Alexander University
Authors:
Robert Dürr, Carsten Seidel, Christoph Neugebauer, Andreas Bück
Target audience:
Researchers and engineers in chemical, pharmaceutical, and food industries
Period of validity:
N/A
Approval date:
N/A
Modification date:
N/A
Year:
2016–2017
Subject:
Chemistry
Topic:
Properties of liquids and solids; intermolecular forces; vapor pressure; evaporation; boiling; heat of fusion and vaporization
Document type:
Educational worksheet set
Course:
Honors Chemistry
Section titles:
WS 12.1 Properties of Liquids and Solids; WS 12.2–12.4 Intermolecular Forces; WS 12.5 Evaporation and Boiling
Educational level:
Secondary education (advanced / honors level)
Content format:
Conceptual questions and calculation problems
Number of pages:
8
Key concepts:
Viscosity; surface tension; volatility; vapor pressure; hydrogen bonding; London dispersion forces; dipole interactions; boiling point trends; phase change energetics
Scientific topics referenced:
Kinetic molecular theory; intermolecular attraction strength; thermodynamic quantities of phase changes
Year:
2026
Region / City:
Global
Subject:
Business Analysis, Software Architecture
Document Type:
Educational Resource
Organization / Institution:
Not specified
Author:
Not specified
Target Audience:
Business Analysts, Software Engineers
Period of Validity:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Note:
Year
Topic:
Software Architecture
Document Type:
Educational Material
Target Audience:
Students, Software Developers
MVC is a software design pattern used to separate an application into three layers:
model, view, and controller, simplifying development, testing, and maintenance by clearly defining the roles and interactions of each component.
Note:
Year
Topic:
Software Development, System Analysis
Document Type:
Instructional Guide
Target Audience:
Business Analysts, Software Developers, Stakeholders
Note:
Year
Organization / institution:
National Centre for Research Methods (NCRM)
Note:
Year
Theme:
IT / Technology, Environmental, Patients, Equipment / Supplies, Staff / People
Document Type:
Diagram