한글목차

태양전지판 코팅 시장, 2024-2028년

태양전지판 코팅 시장은 2023-2028년에 38억 4,440만 달러, 예측 기간 중 CAGR은 13.8%로 성장할 것으로 예측됩니다. 태양전지판 코팅 시장의 전체적인 분석, 시장 규모·예측, 동향, 성장 촉진요인, 과제, 약 25개 벤더를 다룬 벤더 분석 등을 게재하고 있습니다.

현재 시장 시나리오, 최신 동향과 촉진요인, 시장 환경 전체에 관한 최신 분석을 제공하고 있습니다. 태양에너지의 수요 증가, 에너지 효율 중시의 증가, 태양전지판에 대한 정부의 우대 조치 등이 시장을 촉진하고 있습니다.

본 조사에서는 향후 수년간 태양전지판 코팅 시장의 성장을 촉진하는 주요 요인의 하나로 태양전지용 수중 코팅의 개발을 들고 있습니다. 또한 나노코팅 기술의 도입 및 연구개발 활동의 활발화도 시장의 큰 수요로 연결됩니다.

목차

제1장 개요

• 시장 개요

제2장 Technavio 분석

• 가격·수명주기·고객 구입 바스켓·채택률·구입 기준 분석
• 인풋의 중요성과 차별화의 요인
• 혼란의 요인
• 촉진요인과 과제의 영향

제3장 시장 구도

• 시장 에코시스템
• 시장의 특징
• 밸류체인 분석

제4장 시장 규모

• 시장의 정의
• 시장 부문 분석
• 시장 규모 2023년
• 시장 전망 2023-2028년

제5장 시장 규모 실적

• 세계의 태양전지판 코팅 시장 2018-2022년
• 최종사용자별 부문 분석 2018-2022년
• 유형별 부문 분석 2018-2022년
• 지역별 부문 분석 2018-2022년
• 국가별 부문 분석 2018-2022년

제6장 정성 분석

• 인공지능(AI)의 영향 : 세계의 태양전지판 코팅 시장

제7장 Five Forces 분석

• Five Forces 요약
• 바이어의 교섭력
• 공급 기업의 교섭력
• 신규 진출업체의 위협
• 대체품의 위협
• 경쟁의 위협
• 시장 현황

제8장 시장 세분화 : 최종사용자별

• 시장 부문
• 비교 : 최종사용자별
• 전력회사 : 시장 규모와 예측 2023-2028년
• 상업용 : 시장 규모와 예측 2023-2028년
• 주택용 : 시장 규모와 예측 2023-2028년
• 시장 기회 : 최종사용자별

제9장 시장 세분화 : 유형별

• 시장 부문
• 비교 : 유형별
• 반사 방지 : 시장 규모와 예측 2023-2028년
• 소수성 : 시장 규모와 예측 2023-2028년
• 셀프 클리닝 : 시장 규모와 예측 2023-2028년
• 오염 방지 : 시장 규모와 예측 2023-2028년
• 기타 : 시장 규모와 예측 2023-2028년
• 시장 기회 : 유형별

제10장 고객 상황

• 고객 상황 개요

제11장 지역별 상황

• 지역별 세분화
• 비교 : 지역별
• 아시아태평양 : 시장 규모와 예측 2023-2028년
• 유럽 : 시장 규모와 예측 2023-2028년
• 북미 : 시장 규모와 예측 2023-2028년
• 중동 및 아프리카 : 시장 규모와 예측 2023-2028년
• 남미 : 시장 규모와 예측 2023-2028년
• 중국 : 시장 규모와 예측 2023-2028년
• 미국 : 시장 규모와 예측 2023-2028년
• 독일 : 시장 규모와 예측 2023-2028년
• 일본 : 시장 규모와 예측 2023-2028년
• 영국 : 시장 규모와 예측 2023-2028년
• 호주 : 시장 규모와 예측 2023-2028년
• 인도 : 시장 규모와 예측 2023-2028년
• 프랑스 : 시장 규모와 예측 2023-2028년
• 이탈리아 : 시장 규모와 예측 2023-2028년
• 브라질 : 시장 규모와 예측 2023-2028년
• 지역 상황에 의한 시장 기회

제12장 촉진요인·과제·기회·억제요인

• 시장 성장 촉진요인
• 시장이 해결해야 할 과제
• 촉진요인과 과제의 영향
• 시장 기회·억제요인

제13장 경쟁 구도

• 개요
• 경쟁 구도
• 혼란 상황
• 산업 리스크

제14장 경쟁 분석

• 기업 개요
• 기업 순위 지수
• 기업의 시장 포지셔닝
• Advanced Nanotech Lab
• Arkema
• Balconano
• Compagnie de Saint-Gobain SA
• Covestro AG
• Diamon Fusion International Inc.
• DSM-Firmenich AG
• FENZI Spa
• Leybold GmbH
• Nanomason Inc.
• nanopool GmbH
• PPG Industries Inc.
• Sinovoltaics Group Ltd.
• UNELKO CORP.

제15장 부록

영문목차

Solar Panel Coatings Market 2024-2028

The solar panel coatings market is forecasted to grow by USD 3844.4 mn during 2023-2028, accelerating at a CAGR of 13.8% during the forecast period. The report on the solar panel coatings market provides a holistic analysis, market size and forecast, trends, growth drivers, and challenges, as well as vendor analysis covering around 25 vendors.

The report offers an up-to-date analysis regarding the current market scenario, the latest trends and drivers, and the overall market environment. The market is driven by increasing demand for solar energy, rising focus on energy efficiency, and government incentives for solar panels.

Technavio's solar panel coatings market is segmented as below:

By End-user

• Power utilities
• Commercial
• Residential

By Type

• Anti-reflective
• Hydrophobic
• Self-cleaning
• Anti-soiling
• Others

By Geographical Landscape

• APAC
• Europe
• North America
• Middle East and Africa
• South America

This study identifies the development of underwater coatings for solar cells as one of the prime reasons driving the solar panel coatings market growth during the next few years. Also, introduction of nanocoating technology and increase in research and development activities will lead to sizable demand in the market.

The report on the solar panel coatings market covers the following areas:

• Solar Panel Coatings Market sizing
• Solar Panel Coatings Market forecast
• Solar Panel Coatings Market industry analysis

The robust vendor analysis is designed to help clients improve their market position, and in line with this, this report provides a detailed analysis of several leading solar panel coatings market vendors that include 3M India Ltd., Advanced Nanotech Lab, Arkema, Balconano, Chemitek, Compagnie de Saint-Gobain SA, Covestro AG, Diamon Fusion International Inc., DSM-Firmenich AG, Element 119, FENZI Spa, Leybold GmbH, Nanomason Inc., nanopool GmbH, PPG Industries Inc., Sinovoltaics Group Ltd., Soilar Technologies, and UNELKO CORP.. Also, the solar panel coatings market analysis report includes information on upcoming trends and challenges that will influence market growth. This is to help companies strategize and leverage all forthcoming growth opportunities.

The study was conducted using an objective combination of primary and secondary information including inputs from key participants in the industry. The report contains a comprehensive market and vendor landscape in addition to an analysis of the key vendors.

The publisher presents a detailed picture of the market by the way of study, synthesis, and summation of data from multiple sources by an analysis of key parameters such as profit, pricing, competition, and promotions. It presents various market facets by identifying the key industry influencers. The data presented is comprehensive, reliable, and a result of extensive primary and secondary research. The market research reports provide a complete competitive landscape and an in-depth vendor selection methodology and analysis using qualitative and quantitative research to forecast accurate market growth.

Table of Contents

1 Executive Summary

• 1.1 Market overview
  • Executive Summary - Chart on Market Overview
  • Executive Summary - Data Table on Market Overview
  • Executive Summary - Chart on Global Market Characteristics
  • Executive Summary - Chart on Market By Geographical Landscape
  • Executive Summary - Chart on Market Segmentation by End-user
  • Executive Summary - Chart on Market Segmentation by Type
  • Executive Summary - Chart on Incremental Growth
  • Executive Summary - Data Table on Incremental Growth
  • Executive Summary - Chart on Company Market Positioning

2 Technavio Analysis

• 2.1 Analysis of price sensitivity, lifecycle, customer purchase basket, adoption rates, and purchase criteria
  • Analysis of price sensitivity, lifecycle, customer purchase basket, adoption rates, and purchase criteria
• 2.2 Criticality of inputs and Factors of differentiation
  • Overview on criticality of inputs and factors of differentiation
• 2.3 Factors of disruption
  • Overview on factors of disruption
• 2.4 Impact of drivers and challenges
  • Impact of drivers and challenges in 2023 and 2028

3 Market Landscape

• 3.1 Market ecosystem
  • Parent Market
  • Data Table on - Parent Market
• 3.2 Market characteristics
  • Market characteristics analysis
• 3.3 Value chain analysis
  • Value Chain Analysis

4 Market Sizing

• 4.1 Market definition
  • Offerings of companies included in the market definition
• 4.2 Market segment analysis
  • Market segments
• 4.3 Market size 2023
• 4.4 Market outlook: Forecast for 2023-2028
  • Chart on Global - Market size and forecast 2023-2028 ($ million)
  • Data Table on Global - Market size and forecast 2023-2028 ($ million)
  • Chart on Global Market: Year-over-year growth 2023-2028 (%)
  • Data Table on Global Market: Year-over-year growth 2023-2028 (%)

5 Historic Market Size

• 5.1 Global Solar Panel Coatings Market 2018 - 2022
  • Historic Market Size - Data Table on Global Solar Panel Coatings Market 2018 - 2022 ($ million)
• 5.2 End-user segment analysis 2018 - 2022
  • Historic Market Size - End-user Segment 2018 - 2022 ($ million)
• 5.3 Type segment analysis 2018 - 2022
  • Historic Market Size - Type Segment 2018 - 2022 ($ million)
• 5.4 Geography segment analysis 2018 - 2022
  • Historic Market Size - Geography Segment 2018 - 2022 ($ million)
• 5.5 Country segment analysis 2018 - 2022
  • Historic Market Size - Country Segment 2018 - 2022 ($ million)

6 Qualitative Analysis

• 6.1 Impact of Artificial Intelligence (AI) on global solar panel coatings market

7 Five Forces Analysis

• 7.1 Five forces summary
  • Five forces analysis - Comparison between 2023 and 2028
• 7.2 Bargaining power of buyers
  • Bargaining power of buyers - Impact of key factors 2023 and 2028
• 7.3 Bargaining power of suppliers
  • Bargaining power of suppliers - Impact of key factors in 2023 and 2028
• 7.4 Threat of new entrants
  • Threat of new entrants - Impact of key factors in 2023 and 2028
• 7.5 Threat of substitutes
  • Threat of substitutes - Impact of key factors in 2023 and 2028
• 7.6 Threat of rivalry
  • Threat of rivalry - Impact of key factors in 2023 and 2028
• 7.7 Market condition
  • Chart on Market condition - Five forces 2023 and 2028

8 Market Segmentation by End-user

• 8.1 Market segments
  • Chart on End-user - Market share 2023-2028 (%)
  • Data Table on End-user - Market share 2023-2028 (%)
• 8.2 Comparison by End-user
  • Chart on Comparison by End-user
  • Data Table on Comparison by End-user
• 8.3 Power utilities - Market size and forecast 2023-2028
  • Chart on Power utilities - Market size and forecast 2023-2028 ($ million)
  • Data Table on Power utilities - Market size and forecast 2023-2028 ($ million)
  • Chart on Power utilities - Year-over-year growth 2023-2028 (%)
  • Data Table on Power utilities - Year-over-year growth 2023-2028 (%)
• 8.4 Commercial - Market size and forecast 2023-2028
  • Chart on Commercial - Market size and forecast 2023-2028 ($ million)
  • Data Table on Commercial - Market size and forecast 2023-2028 ($ million)
  • Chart on Commercial - Year-over-year growth 2023-2028 (%)
  • Data Table on Commercial - Year-over-year growth 2023-2028 (%)
• 8.5 Residential - Market size and forecast 2023-2028
  • Chart on Residential - Market size and forecast 2023-2028 ($ million)
  • Data Table on Residential - Market size and forecast 2023-2028 ($ million)
  • Chart on Residential - Year-over-year growth 2023-2028 (%)
  • Data Table on Residential - Year-over-year growth 2023-2028 (%)
• 8.6 Market opportunity by End-user
  • Market opportunity by End-user ($ million)
  • Data Table on Market opportunity by End-user ($ million)

9 Market Segmentation by Type

• 9.1 Market segments
  • Chart on Type - Market share 2023-2028 (%)
  • Data Table on Type - Market share 2023-2028 (%)
• 9.2 Comparison by Type
  • Chart on Comparison by Type
  • Data Table on Comparison by Type
• 9.3 Anti-reflective - Market size and forecast 2023-2028
  • Chart on Anti-reflective - Market size and forecast 2023-2028 ($ million)
  • Data Table on Anti-reflective - Market size and forecast 2023-2028 ($ million)
  • Chart on Anti-reflective - Year-over-year growth 2023-2028 (%)
  • Data Table on Anti-reflective - Year-over-year growth 2023-2028 (%)
• 9.4 Hydrophobic - Market size and forecast 2023-2028
  • Chart on Hydrophobic - Market size and forecast 2023-2028 ($ million)
  • Data Table on Hydrophobic - Market size and forecast 2023-2028 ($ million)
  • Chart on Hydrophobic - Year-over-year growth 2023-2028 (%)
  • Data Table on Hydrophobic - Year-over-year growth 2023-2028 (%)
• 9.5 Self-cleaning - Market size and forecast 2023-2028
  • Chart on Self-cleaning - Market size and forecast 2023-2028 ($ million)
  • Data Table on Self-cleaning - Market size and forecast 2023-2028 ($ million)
  • Chart on Self-cleaning - Year-over-year growth 2023-2028 (%)
  • Data Table on Self-cleaning - Year-over-year growth 2023-2028 (%)
• 9.6 Anti-soiling - Market size and forecast 2023-2028
  • Chart on Anti-soiling - Market size and forecast 2023-2028 ($ million)
  • Data Table on Anti-soiling - Market size and forecast 2023-2028 ($ million)
  • Chart on Anti-soiling - Year-over-year growth 2023-2028 (%)
  • Data Table on Anti-soiling - Year-over-year growth 2023-2028 (%)
• 9.7 Others - Market size and forecast 2023-2028
  • Chart on Others - Market size and forecast 2023-2028 ($ million)
  • Data Table on Others - Market size and forecast 2023-2028 ($ million)
  • Chart on Others - Year-over-year growth 2023-2028 (%)
  • Data Table on Others - Year-over-year growth 2023-2028 (%)
• 9.8 Market opportunity by Type
  • Market opportunity by Type ($ million)
  • Data Table on Market opportunity by Type ($ million)

10 Customer Landscape

• 10.1 Customer landscape overview
  • Analysis of price sensitivity, lifecycle, customer purchase basket, adoption rates, and purchase criteria

11 Geographic Landscape

• 11.1 Geographic segmentation
  • Chart on Market share By Geographical Landscape 2023-2028 (%)
  • Data Table on Market share By Geographical Landscape 2023-2028 (%)
• 11.2 Geographic comparison
  • Chart on Geographic comparison
  • Data Table on Geographic comparison
• 11.3 APAC - Market size and forecast 2023-2028
  • Chart on APAC - Market size and forecast 2023-2028 ($ million)
  • Data Table on APAC - Market size and forecast 2023-2028 ($ million)
  • Chart on APAC - Year-over-year growth 2023-2028 (%)
  • Data Table on APAC - Year-over-year growth 2023-2028 (%)
• 11.4 Europe - Market size and forecast 2023-2028
  • Chart on Europe - Market size and forecast 2023-2028 ($ million)
  • Data Table on Europe - Market size and forecast 2023-2028 ($ million)
  • Chart on Europe - Year-over-year growth 2023-2028 (%)
  • Data Table on Europe - Year-over-year growth 2023-2028 (%)
• 11.5 North America - Market size and forecast 2023-2028
  • Chart on North America - Market size and forecast 2023-2028 ($ million)
  • Data Table on North America - Market size and forecast 2023-2028 ($ million)
  • Chart on North America - Year-over-year growth 2023-2028 (%)
  • Data Table on North America - Year-over-year growth 2023-2028 (%)
• 11.6 Middle East and Africa - Market size and forecast 2023-2028
  • Chart on Middle East and Africa - Market size and forecast 2023-2028 ($ million)
  • Data Table on Middle East and Africa - Market size and forecast 2023-2028 ($ million)
  • Chart on Middle East and Africa - Year-over-year growth 2023-2028 (%)
  • Data Table on Middle East and Africa - Year-over-year growth 2023-2028 (%)
• 11.7 South America - Market size and forecast 2023-2028
  • Chart on South America - Market size and forecast 2023-2028 ($ million)
  • Data Table on South America - Market size and forecast 2023-2028 ($ million)
  • Chart on South America - Year-over-year growth 2023-2028 (%)
  • Data Table on South America - Year-over-year growth 2023-2028 (%)
• 11.8 China - Market size and forecast 2023-2028
  • Chart on China - Market size and forecast 2023-2028 ($ million)
  • Data Table on China - Market size and forecast 2023-2028 ($ million)
  • Chart on China - Year-over-year growth 2023-2028 (%)
  • Data Table on China - Year-over-year growth 2023-2028 (%)
• 11.9 US - Market size and forecast 2023-2028
  • Chart on US - Market size and forecast 2023-2028 ($ million)
  • Data Table on US - Market size and forecast 2023-2028 ($ million)
  • Chart on US - Year-over-year growth 2023-2028 (%)
  • Data Table on US - Year-over-year growth 2023-2028 (%)
• 11.10 Germany - Market size and forecast 2023-2028
  • Chart on Germany - Market size and forecast 2023-2028 ($ million)
  • Data Table on Germany - Market size and forecast 2023-2028 ($ million)
  • Chart on Germany - Year-over-year growth 2023-2028 (%)
  • Data Table on Germany - Year-over-year growth 2023-2028 (%)
• 11.11 Japan - Market size and forecast 2023-2028
  • Chart on Japan - Market size and forecast 2023-2028 ($ million)
  • Data Table on Japan - Market size and forecast 2023-2028 ($ million)
  • Chart on Japan - Year-over-year growth 2023-2028 (%)
  • Data Table on Japan - Year-over-year growth 2023-2028 (%)
• 11.12 UK - Market size and forecast 2023-2028
  • Chart on UK - Market size and forecast 2023-2028 ($ million)
  • Data Table on UK - Market size and forecast 2023-2028 ($ million)
  • Chart on UK - Year-over-year growth 2023-2028 (%)
  • Data Table on UK - Year-over-year growth 2023-2028 (%)
• 11.13 Australia - Market size and forecast 2023-2028
  • Chart on Australia - Market size and forecast 2023-2028 ($ million)
  • Data Table on Australia - Market size and forecast 2023-2028 ($ million)
  • Chart on Australia - Year-over-year growth 2023-2028 (%)
  • Data Table on Australia - Year-over-year growth 2023-2028 (%)
• 11.14 India - Market size and forecast 2023-2028
  • Chart on India - Market size and forecast 2023-2028 ($ million)
  • Data Table on India - Market size and forecast 2023-2028 ($ million)
  • Chart on India - Year-over-year growth 2023-2028 (%)
  • Data Table on India - Year-over-year growth 2023-2028 (%)
• 11.15 France - Market size and forecast 2023-2028
  • Chart on France - Market size and forecast 2023-2028 ($ million)
  • Data Table on France - Market size and forecast 2023-2028 ($ million)
  • Chart on France - Year-over-year growth 2023-2028 (%)
  • Data Table on France - Year-over-year growth 2023-2028 (%)
• 11.16 Italy - Market size and forecast 2023-2028
  • Chart on Italy - Market size and forecast 2023-2028 ($ million)
  • Data Table on Italy - Market size and forecast 2023-2028 ($ million)
  • Chart on Italy - Year-over-year growth 2023-2028 (%)
  • Data Table on Italy - Year-over-year growth 2023-2028 (%)
• 11.17 Brazil - Market size and forecast 2023-2028
  • Chart on Brazil - Market size and forecast 2023-2028 ($ million)
  • Data Table on Brazil - Market size and forecast 2023-2028 ($ million)
  • Chart on Brazil - Year-over-year growth 2023-2028 (%)
  • Data Table on Brazil - Year-over-year growth 2023-2028 (%)
• 11.18 Market opportunity By Geographical Landscape
  • Market opportunity By Geographical Landscape ($ million)
  • Data Tables on Market opportunity By Geographical Landscape ($ million)

12 Drivers, Challenges, and Opportunity/Restraints

• 12.1 Market drivers
• 12.2 Market challenges
• 12.3 Impact of drivers and challenges
  • Impact of drivers and challenges in 2023 and 2028
• 12.4 Market opportunities/restraints

13 Competitive Landscape

• 13.1 Overview
• 13.2 Competitive Landscape
  • Overview on criticality of inputs and factors of differentiation
• 13.3 Landscape disruption
  • Overview on factors of disruption
• 13.4 Industry risks
  • Impact of key risks on business

14 Competitive Analysis

• 14.1 Companies profiled
  • Companies covered
• 14.2 Company ranking index
  • Company ranking index
• 14.3 Market positioning of companies
  • Matrix on companies position and classification
  • 3M India Ltd.
  • 3M India Ltd. - Overview
  • 3M India Ltd. - Business segments
  • 3M India Ltd. - Key offerings
  • 3M India Ltd. - Segment focus
  • SWOT
• 14.5 Advanced Nanotech Lab
  • Advanced Nanotech Lab - Overview
  • Advanced Nanotech Lab - Product / Service
  • Advanced Nanotech Lab - Key offerings
  • SWOT
• 14.6 Arkema
  • Arkema - Overview
  • Arkema - Business segments
  • Arkema - Key news
  • Arkema - Key offerings
  • Arkema - Segment focus
  • SWOT
• 14.7 Balconano
  • Balconano - Overview
  • Balconano - Product / Service
  • Balconano - Key offerings
  • SWOT
• 14.8 Compagnie de Saint-Gobain SA
  • Compagnie de Saint-Gobain SA - Overview
  • Compagnie de Saint-Gobain SA - Business segments
  • Compagnie de Saint-Gobain SA - Key news
  • Compagnie de Saint-Gobain SA - Key offerings
  • Compagnie de Saint-Gobain SA - Segment focus
  • SWOT
• 14.9 Covestro AG
  • Covestro AG - Overview
  • Covestro AG - Key offerings
  • SWOT
• 14.10 Diamon Fusion International Inc.
  • Diamon Fusion International Inc. - Overview
  • Diamon Fusion International Inc. - Product / Service
  • Diamon Fusion International Inc. - Key offerings
  • SWOT
• 14.11 DSM-Firmenich AG
  • DSM-Firmenich AG - Overview
  • DSM-Firmenich AG - Product / Service
  • DSM-Firmenich AG - Key offerings
  • SWOT
• 14.12 FENZI Spa
  • FENZI Spa - Overview
  • FENZI Spa - Product / Service
  • FENZI Spa - Key offerings
  • SWOT
• 14.13 Leybold GmbH
  • Leybold GmbH - Overview
  • Leybold GmbH - Product / Service
  • Leybold GmbH - Key offerings
  • SWOT
• 14.14 Nanomason Inc.
  • Nanomason Inc. - Overview
  • Nanomason Inc. - Product / Service
  • Nanomason Inc. - Key offerings
  • SWOT
• 14.15 nanopool GmbH
  • nanopool GmbH - Overview
  • nanopool GmbH - Product / Service
  • nanopool GmbH - Key offerings
  • SWOT
• 14.16 PPG Industries Inc.
  • PPG Industries Inc. - Overview
  • PPG Industries Inc. - Business segments
  • PPG Industries Inc. - Key news
  • PPG Industries Inc. - Key offerings
  • PPG Industries Inc. - Segment focus
  • SWOT
• 14.17 Sinovoltaics Group Ltd.
  • Sinovoltaics Group Ltd. - Overview
  • Sinovoltaics Group Ltd. - Product / Service
  • Sinovoltaics Group Ltd. - Key offerings
  • SWOT
• 14.18 UNELKO CORP.
  • UNELKO CORP. - Overview
  • UNELKO CORP. - Product / Service
  • UNELKO CORP. - Key offerings
  • SWOT

15 Appendix

• 15.1 Scope of the report
• 15.2 Inclusions and exclusions checklist
  • Inclusions checklist
  • Exclusions checklist
• 15.3 Currency conversion rates for US$
  • Currency conversion rates for US$
• 15.4 Research methodology
  • Research methodology
• 15.5 Data procurement
  • Information sources
• 15.6 Data validation
  • Data validation
• 15.7 Validation techniques employed for market sizing
  • Validation techniques employed for market sizing
• 15.8 Data synthesis
  • Data synthesis
• 15.9 360 degree market analysis
  • 360 degree market analysis
• 15.10 List of abbreviations
  • List of abbreviations