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There are various etchants used for silicon wafer wet etching include KOH, thylenediamine-pyrocatechol-water (EDP) and tetramethylammonium hydroxide (TMAH) [7].
(SPIE Professional, July 2011, p. 10-12

The black products were rinsed with dilute HCl solution (~1 mol L-1), absolute ethanol, and distilled water in sequence, and then dried under vacuum at 60 °C for 4 h.
Oyama: The Chemistry of Transition Metal Carbides and Nitrides (Blackie Academic Professional, Glasgow 1996)

For example: (1) electrical performance and (or) mechanical properties tested in accordance with professional standards; (2) no significant component dark black metal, metal joints without serious corrosion, corrosion of the metal protective layer of 30% of area; (3) paint materials no bubbles, wrinkling, cracking or peeling; (4) no obvious white non-metallic materials, swelling, blistering, cracking and other wrinkles.
It is suitable for the condensation as the main mechanism of moisture or water vapor can accelerate respiration test sample into the test.

There is no professional literature concerning the design and manufacturing of bellows made in SLS technology.
Materials Polyamide PA 2200 from the EOS Company with the properties shown in Table 1 [11] is a material with a very high resistance to aggressive chemicals and has the lowest water absorption of all available polyamides.

In short, CSR refers to the phenomenon that organizations not only ensure obligations and responsibilities toward stockholders and investors but also expand all stakeholders’ scope of concerns and responsibilities toward employees, family members, industrial partners, the government, associations, mass media, consumers and customers, and other social issues such as the labor operation, human rights, production responsibility, economic level of market performance, financial transparency, and environmental issues (e.g. product and process greening, water resource management, organism diversity, raw material disposal, etc.).
TABLE I. 1970~1979 In this period, philosophers provided new conceptual framework which expanded viewpoints from managerial persons to employees, stockholders, and consumers. 1980~1989 In this period, business ethics became a professional field and was systematized gradually.

Apart from the safety of employee, safeguarding property is an important part of fire safety because heat and smoke as a result of fire can cause direct damage to property and other several damages like collapse of the building, water pollution as well as other environmental mutilation [1,11].
A combination of fifteen (15) experts drawn from different professional disciplines with experience in the aspect of fire safety management, were involved in the survey.

The water flow characteristics in the flume were turbulent during testing in the hydraulic laboratory.
Introduction One of the efforts to increase water availability in irrigation is to provide lining in irrigation channels, which reduces the water loss rate.
The flow depth in the GFRP flume (hg) is obtained by directly measuring each water flow test's results with a point gauge.
The volume of water contained in the bucket (V) and the time needed to fill the bucket (∆t) were measured.
Journal of Professional Issues in Engineering Education and Practice - J Prof Issue Eng Educ Pract. 129. 10.1061/(ASCE)1052-3928(2003)129:1(58). (2003).

The Advantage of Selecting Lightweight Aggregate Concrete as Arch Crown Filler The lightweight aggregate concrete is made with light-weight coarse aggregate, light-weight fine aggregate or common sand, cement and water.
According to “Specification for Design of Lightweight Aggregate Concrete Structures(JGJ 12-99)” of The Professional Standards in People's Republic of China, lightweight aggregate concrete density ranges 800 kg/m3 to 1950 kg/m3, and axis compressive strength ranges 5.0MPa to 32MPa.

In professional data base, people can conveniently get help in respects of material selections and relevant processing techniques, such as searching performance parameters of various materials and product application conditions.
Fine and smooth surface creates a light object, instead, rough surface results in a heavy object, a glass, for example, is far lighter than a water drinking device made of pottery clay or bronze

Establishment of an integrated disaster information system was conducive to disaster information sharing and collaborative analysis between various departments, including meteorological department, water department, earthquake department, land department, fire department, transportation department, and so on.
In the course of safety education, volunteers should be selected and professional trained.