موضوعات
آموزش و پرورش
ادبیات و زبان
پزشکی، دندانپزشکی و داروسازی
تاریخ و جغرافیا
داستان و رمان
دیگر
دین و فلسفه
روانشناسی
ریاضیات و آمار
سلامتی، تناسب اندام و رژیم غذایی
شیمی و پلیمر
علوم اجتماعی و حقوق
علوم زیستی و بیوتکنولوژی
فیزیک و نجوم
کامپیوتر و اینترنت
کتابهای کودکان و داستان
کسب و کار و اقتصاد
کشاورزی و دامپزشکی و غذا
معماری
مهندسی و فناوری
هنر و تئاتر
محصولات
Payroll Accounting 2018 4th Edition
نویسندگان: خلاصه: A modern approach to payroll accounting, Landin/Schirmer’s Payroll 2018 provides a“practitioners’ view” of this highly specialized area of accounting. Incorporating examples of real-world companies, Payroll 2018 highlights the relevance of the course in its coverage of issues that students will face in their careers, such as labor planning and labor costs.
Genealogy Basics In 30 Minutes: The quick guide to creating a family tree, building connections with relatives, and discovering the stories of your ancestors
نویسندگان: خلاصه: "The biggest thing was it was written in a way it felt like the author was speaking directly to me, rather than other books I have read on this subject that felt like I was in an auditorium and I was one of a hundred."
Boiler Water Treatment Principles and Practice: Charts and Notes for Field Use
نویسندگان: خلاصه: Table of Contents: About the Author - Saturated steam temperatures at various boiler pressures - Boiler Energy and Power Units - Typical gross heating values of common fuels (based on approximately 80% fuel to steam efficiency) - Typical energy consumption and output ratings for a fire tube boiler - Steam tables suitable for pressure deaerators - Calculating Blowdown - Coefficients of thermal conductivity for some heat-exchanger metals and boiler deposits - Types of water or steam commonly employed in most HW heating and steam generating plants - Commonly occurring minerals in natural MU water sources - Specific waterside / steamside problems affecting MPHW and HPHW boiler plants - Salt concentration indicators - Summary of waterside / steamside problems affecting LPHW and LP steam heating boiler plants - FW contamination from MU water - FW contamination from returned condensate - Problems associated with the final FW blend - Deposition of boiler section waterside surfaces by alkaline earth metal salts, other inorganic salts and organics - Silica and silicate crystalline scales and deposits affecting boiler section waterside surfaces - Iron oxide and other boiler section corrosion debris deposits - Boiler section corrosion problems involving oxygen, concentration cells and low pH - Stress and high temperature related corrosion - Steam purity, quality and other operational problems - Specification for grades of high-quality water suitable for higher pressure WT boilers - Practical considerations for a RW ion-exchange softener - Types of Internal Treatment Program - Carbonate Cycle Requirement Calculations - Phosphate-Cycle Requirement Calculations - A Guide to Tannin Residuals in BW - Carbonate-Cycle Program
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