Книги почтой booksiti.net.ru  (499)2130422

    есть на складе                                                                       

 (499) 213 04 22
Химия Химия
Физическая химия Физическая химия


New Optical Sensors for Determination of Corrosion in Reinforcement Concrete

Автор:   Pavel M.
мягкая обложка
224 страниц
2008 год
Издательство:   Книга по Требованию
3231 руб
на складе

способы доставки и оплаты
Описание:The dyes have been covalent bound to poly(vinyl alcohol co ethylen) by acetal spacer bridge to assure long–term stability of the sensor. Optical sensoric materials were prepared, which allow a non-destructive monitoring of these processes. Principally, it is an electrochemical process, which can be divided by two mechanisms – acidic and chloride initiated corrosion. The response time of these sensors is in the range of seconds. An aldehyde group has been used as dye–reactive functionality for the first time. The colour change of such prepared pH–indicator materials occurs in the pH interval of 11 to 13 and allows to predict the acidic attack in an early stage. Corrosion of reinforcement steel of concrete is one of the main causes of deteriorations of structures. The optical detection of chloride ions in alkaline media has been investigated. Benzimidazolotrimethine dyes tend to form J–aggregates under influence of chloride ion concentration in pH of 10 to 13. A suitable polymer has been developed – poly(vinyl alcohol co vinyl butyral), in which the dye is dissolved as host–guest system. Such prepared sensor material allows a precise determination of chloride concentration and shows an excellent selectivity against other anions, which are typical in the presence of concrete structures. To the best of our knowledge it is the first optical sensors for determination of chloride in alkaline media. The sensors are embedded into concrete structures and the signal is transported through optical fibres. pH–indicator azo dyes have been synthesised for monitoring of acidic attack.

Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка

2990 руб
Бесплатная доставка

The Ode Less Travelled: Unlocking The Poet Within

Our understanding of much in the world is more poetic than noetic. We let others do the work and take their half-understood ideas for a ride, all unaware of the cognitive principles that gave birth to them. That those principles and their corollaries would have shocked and perplexed us had we lived in other times is interesting but irrelevant for our purposes. You do not have to understand Faraday’s and Maxwell’s electromagnetic theories of light to operate a light switch, or even to become a professional lighting designer. The upshot of Imagism, Vorticism, Cubism, Neo-Plasticism, Constructivism, Acmeism, Futurism, Dadaism and all the other -isms that flooded art in the twentieth century was to allow a new kind of poetry, of which concrete poetry is one, the work of cummings another. Such practices now inform the works of thousands of poets around the globe. Since, unlike traditional metrical poetry, they descend from conscious ideas rather than techniques evolved (by way of music and dance) out of the collective unconscious of three millennia, their genesis did seem worth a small excursion ...»

Код для вставки книги в блог



Магнитная "Азбука" (106 элементов).
Мягкая магнитная "Азбука" - это набор наиболее употребляемых букв, цифр и знаков. Благодаря этому набору Вы не только
939 руб
Раздел: Буквы на магнитах
Противомоскитная сетка, 100х220 см, белая.
Материал изготовления: полиэстер 100%, плотность 58 гр/кв. метр. В комплект входят кнопки и двусторонний скотч для крепления к дверному
425 руб
Раздел: Сетки противомоскитные
Набор строительных деталей для конструктора "Геометрик".
Во время игры ребёнок знакомиться с вариантами расположения строительных форм, учиться различать и называть детали. Используется для
463 руб
Раздел: Блочные конструкторы

Corrosion Resistant Concrete Reinforcing Materials. Corrosion Initiation and Propagation Behavior
The key question is whether or not the higher upfront cost of corrosion resistant rebar is justified over the lifetime of a structure.
          3212 руб             2009 год          224 стр.          мягкая обложка

Analysis and Design of FRP Reinforced Concrete Buildings. The use of FRP bars as concrete reinforcement in buildings - earthquake behavior and seismic design
Seismic forces and deformation demands are illustrated in case studies covering buildings with various dynamic characteristics and in different seismic zones.
          3212 руб             2009 год          340 стр.          мягкая обложка

Effective Rehabilitation of Reinforced Concrete Framed Buildings. A Fundamental Approach
In this book, the various processes required for an effective repair and strengthening of reinforced concrete framed buildings were discussed.
          2413 руб             2010 год          128 стр.          мягкая обложка

Structural Design of High Rise Buildings. Detailed Background, Evolution, Analysis and Design of High Rise Multi Storey Reinforced Concrete and Structrual Steel Buildings
In this time of dilemma, civil engineers rose to the occasion and faced the challenge of providing accommodation to a large number of citizens in a limited space, defiantly.
          3231 руб             2010 год          220 стр.          мягкая обложка

The effect of adding spiral reinforcing to vertically reinforced concrete columns
          592 руб             2011 год          мягкая обложка

Graphical Handbook for Reinforced Concrete Design
          598 руб             2011 год          мягкая обложка

Reinforced Concrete
Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи": помарки, кляксы и т. п. Книга представляет собой репринтное издание.
          1148 руб             2011 год          мягкая обложка

Reinforced concrete construction
          1756 руб             2010 год          мягкая обложка

Hand book of the New York fire insurance exchange, containing the agreement, list of members, general rules and rates, clauses and priviledges, forms and general minimum rates
          1142 руб             2011 год          мягкая обложка

Documents of the Convention of the State of New York, 1867-'68, Volume 4
          2037 руб             2011 год          мягкая обложка

Home rule charter of the City of New York, with explanatory memorandum, Proposed to the New York Charter Commission by Franklin W. M. Cutcheon
          599 руб             2011 год          мягкая обложка

In the matter of the charges against John F. Ahearn, president of the borough of Manhattan, in the city of New York. Brief for petitioners. Nelson S. Spencer, ... Charles H. Strong, counsel for petitioners
          599 руб             2011 год          мягкая обложка

Digest of New Hampshire school law, adapted to the general laws and amendments thereto
          599 руб             2011 год          мягкая обложка

The negro labor question. By a New-York merchant
          591 руб             2011 год          мягкая обложка

Revision documents of the Constitutional Convention of the state of New York, 1867-'68
          599 руб             2011 год          мягкая обложка

Compilation and digest of decisions and relevant matter contained in proceedings of the Grand lodge of Free and accepted masons of the state of New York, with topical index
Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи": помарки, кляксы и т. п. Книга представляет собой репринтное издание.
          1151 руб             2011 год          мягкая обложка

Memoirs of the New York Botanical Garden, Volume 4
          1144 руб             2010 год          мягкая обложка

New Jersey school law, with notes, blanks and forms ..
Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи": помарки, кляксы и т. п. Книга представляет собой репринтное издание.
          599 руб             2010 год          мягкая обложка

History of capitular masonry in New Jersey, 1803-1903
          1425 руб             2010 год          мягкая обложка

Annual Report of the Municipal Officers of the Town of New Gloucester
          360 руб             2011 год          мягкая обложка

Chloride induced corrosion of steel reinforcement inside concrete. Use of half-cell potential to determine threshold chloride concentration for corrosion initiation
It was aimed to assess the corrosion development on rebars within concrete subjected to an accelerated NaCl environment through continuous half-cell potential (HCP) monitoring using lead reference electrode in concrete and computer operated data logger.
          2005 руб             2010 год          112 стр.          мягкая обложка

Number. A New Method for Estimating the Direction-of-Arrival and Determining the Numbers of Coherent Impinging Signals
Besides, we can find out the number of signals by counting the non-zero eigenvalues of the covariance matrix of this new matrix.
          2005 руб             2008 год          64 стр.          мягкая обложка

Corrosion of RC Structures Under Severe Environmental Actions. Multiscale Electrochemical Corrosion Modeling of Steel Embedded in Chloride Contaminated Concrete Under Elevated Temperature Conditions
There is no doubt that the presence of chloride ions promote the disruption of the passive layer causing corrosion of reinforcement and the chloride attack becomes much more severe when coupled with high temperature.
          2005 руб             2010 год          120 стр.          мягкая обложка

Ionizing Radiation Dosimeters. Potential use of commercially Doped Silicon Dioxide Optical Fibres as a new TLD material
The present work have established procedures and methodology for characterizing the TL yield of doped silica fibres, irradiated by a comprehensive range of sources, from low energy photons to megavoltages, through to neutrons and charged particles (from beta-sources, accelerated electrons and alpha-particles).
          2781 руб             2010 год          176 стр.          мягкая обложка

Reports of Cases Determined in the Supreme Court of the State of New Mexico, Volume 19
          1751 руб             2011 год          мягкая обложка

Reports of Cases Argued and Determined in the Court of Common Pleas for the City and County of New York, Volume 11
          1154 руб             2011 год          мягкая обложка

Reports of Cases Argued and Determined in the Court of Common Pleas for the City and County of New York, Volume 5
          1154 руб             2011 год          мягкая обложка

Determination of Caffeine in Roasted Coffee Using Optical Method. Effect of roasting time on caffeine content, effect of roasting temperature on caffeine content, effect of temperature on pure caffeine
A modest loss of caffeine was verified both in the roasting time and roasting temperature.
          1891 руб             2010 год          56 стр.          мягкая обложка

Integrated Front-end Analog Circuits for MEMS Sensors. -in Ultrasound Imaging and Optical Grating Based Microphone
In the case of biomimetic microphone structure, optical detection overcomes capacitive detection' s thermal noise issues. Also with micro-scaling, optical detection overcomes the increased parasitics without any sensitivity degradation, unlike capacitive detection. For hearing aids, along with sensitivity, battery life is another challenge. We propose the use of 1- bit front-end sigma-delta ADC for overall improved hearing aid power efficiency. Front-end interface based on envelope detection and synchronous detection have also been designed. Circuit techniques are used for maximizing signal handling with low supplies. Here capacitive feedback charge amplifier is shown as an alternative approach to resistive feedback amplifier. Smaller sensors lead to a lower active-to- parasitic ratio and thus, degrades sensitivity. Micro-scaling makes MEMS sense capacitance small in a CMUT array element for intravascular ultrasound imaging. This approach of charge amplifiers is also suitable in capacitive microphones where it provides low power and high sensitivity. Capacitive feedback charge amplifier provides high sensitivity, small area, low distortion and power saving.
          1891 руб             2010 год          120 стр.          мягкая обложка

Бессмертие: Награда или испытание?: Действительно ли мы умираем или можно жить вечно New Age ISBN 5-94371-417-0
Материал излагается легко, доступно, понятным языком, научные факты иллюстрируются множеством примеров, которые будут интересны широкому кругу читателей.
          41 руб             2003 год


на главную

 (499) 213 04 22

Интернет магазин Книги почтой booksiti.net.ru, все книги Вы можете приобрести наложенным платежом, сделав заказ на сайте. Большой выбор литературы по бизнесу, экономике, праву. Техническая научная литература. Детские книги и учебники для школы. Медицинские издания. Художественная литература. Сайт booksiti.net.ru это интернет-магазин литературы, который успешно работает на книжном рынке уже 3 года. Ведущим методом работы является рассылка литературы наложенным платежом в регионы. В крупных издательствах наложенным платежом книги не отправляют, а что делать покупателю, дабы гарантированно получить свой заказ? При отправке наложенным платежом заказ оплачивается при получении на почте, что важно для розничного покупателя. Ведь не все необходимые для работы книги можно купить в родном городе. Если вы всю жизнь идёте по пути самосовершенствования и саморазвития, то на сайте booksiti.net.ru вы обязательно найдете для себя новые и интересные книги.