Fracture Behavior of Biological Materials and Interfaces
Fracture Behavior of Inhomogeneous Biological Materials and Interfaces
Biological materials like bone, nacre, human tooth layers are inhomogeneous materials made up of soft collagen, and hard, hydroxyapatite (HAP) mineral arranged in such a fashion so that these materials have higher strength and toughness, the measure of crack resisting behavior in materials, at the same time, which is exclusive in nature for different class of materials available for different application areas. The interfaces in these biological materials are designed in such a fashion so that the load transfer between the constituents takes place so smoothly, therefore, become a region of strength, not susceptible to failure like in other man-made materials and composites. It is important to understand these aspects of biological materials so that they can be mimicked to the novel materials to satisfy the growing need of different industries.
This work is focused on studying different layers of human tooth, and its interface for crack initiation and growth, the crack arresting behavior of the interface layer of the outer cover of human tooth, the enamel, and the inner, dentine, called dentine enamel junction. These works are done by developing a numerical model using the commercial finite element analysis tool, ABAQUS. The crack growth pattern of the enamel and the dentine has also been investigated. The role of porosity and permeability on the energy release rate which is the measure of fracture toughness has also been investigated. The key features of the book are:
- Study on the role of shear modulus of the defect and the matrix material in which the defect is embedded on the energy release rate.
- The role of small coating layer between the outer matrix and the inner layer on the fracture behavior, especially the stress concentrations in these different layers due to change in the elastic modulus.
- The crack growth pattern in human enamel, the outer tooth layer.
- The crack arresting phenomena of the interfacial, dentine enamel junction (DEJ).
- The role of porosity and permeability on the energy release rate in the inner layer of human tooth, dentine.
Vikas Ka Aadhar Manvadhikar
मानवाधिकार का आधार मानव के सर्वांगीण विकास के लिए साधन
उपलब्ध कराना है। वस्तुतः मानवाधिकार की नींव ऐसे विचारों से
निर्मित है, जिनके अनुसार सभी व्यक्तियों को प्रकृति ने समान रूप से
समान अधिकार प्रदान किए हैं। मानवाधिकार प्रत्येक व्यक्ति को जन्म
के साथ ही प्राप्त हो जाते हंै, और मृत्युपर्यन्त तक संरक्षित रहते हैं।
मानवाधिकारो ं की प्राप्ति की एकमात्र अर्हता व्यक्ति का मानव होना है
अर्थात् सम्पूर्ण मानवों को यह अधिकार स्वतः ही प्राप्त हो जाते है।
मानवाधिकार गुण-धर्म, प्रतिभा, बुद्धि आदि ऐसे तत्व हैं, जिनसे वंचित
मानव की तुलना पशु से ही की जा सकती है।
Arunima
PRODUCT DETAILS
- ISBN : 978-93-90548-94-1
- Publisher : Book River (1 March 2021)
- Language : Hindi
- Dimensions : 12 x 2 x 21 cm
- Country of Origin : India
- Pages : 150
A Life Under Mask
A life under mask, humare jeevan me aaye sabse bade badalav ki kitab hai. Is kitab me kisne apne poems to kisine apne shayari, letters or stories ke jariye apne lockdown ka haal samjhaya hai.
Duniya jahan ki baate vo sari apne dil se nikal ke ek chote se kagaj pe likh dete hai, ji hai humare writer’s kuch khaas hai jo apni bhawanao ko hakigat me uthar dete hai.
Is kitab ki kamiyabi is kitab ke bemisaal writers ke bina aadhuri hai. Is kitab ko humne do bhashao me likha hai English aur Hinglish. Chand Lavzon Ki Kahani (CLKK TEAM) dwara prastut aur Mr. Deepak raut or Mr. Himanshu Jha ke dwara compiled is kitab ko apka pyaar milega ye asha hai.
Kahani Har Vidyarthi Ki ( Nai Ummeed )
PRODUCT DETAILS
- ISBN : 978-93-90548-13-2
- Publisher : Book River (26 Feburary 2021)
- Language : Hindi
- Dimensions : 12 x 2 x 21 cm
- Country of Origin : India
- Pages : 90
DENTAL IMPLANT IMAGING
Computed tomography (CT) has been the gold
standard for many years as the information provided is
three-dimensional and generally very accurate. However,
CT examinations are expensive and deliver a relatively
high radiation dose to the patient. The latest imaging
modality introduced is cone beam volumetric tomography
(CBVT) and this technology is very promising with regard
to pre-implant imaging.
Prakriti Ke Vibhinn Swaroop
कविताएं पढ़ने और लिखने का शौक बचपन से ही था,
परन्तु जैसे ही प्रकृति के स्वच्छन्द वातावरण में शरण मिली तो मेरी
रचनात्मक अभिव्यक्ति में निखार आया। प्रकृति के आँचल में ही मैंने
आन्तरिक द्वन्दो,ं कुंठाओ,ं वेदनाओं का े शन्ू य पाया और प्रकृति के आँचल
में ही मैंने ईश्वरीय सौन्दर्य और ईश्वरीय प्रेम की अनुभूति की।
RasoiGhar Relish the goodness from simple food habits
Rasoi Ghar is an attempt to give back to society the Satvik recipes of food
that are devoured during the span of nine nights of Navaratri Holy festival of
Hindus celebrated across the nation every year. This volume focuses mainly on
Sharada Navaratri. The Phalahari food culture of during Navaratri ranges from
Drinks, Snacks, Main Course, Breads, Sweets, Raita and Chutney.
Aakhir Tum Ho Kaun ? (Ek Lamha)
ज़िन्दगी कट जायेगी मेरी, तुम अगर साथ मेरा दे दो।
मंजिल मिल जायेगी मेरी, तुम अगर साथ मेरा दे दो।
हम तुम्हें नैनो के आईने में बसायेगें,
अपनी यादों को फिर ताज़ा कर दो।
ज़िन्दगी कट...........................
Sunti Jao Prem Samarpan (Hindi)
PRODUCT DETAILS ISBN : 978-81-949001-1-5 Publisher : Book River (10 Feburary 2021) Language : Hindi Dimensions : 12 x 2 x 21
RETAIL STORE MANAGEMENT
Retail comes from the French word retailler. It was
used with the meaning of "sale in small quantities" in 1433.
Retail is the last phase of an economic activity. As per
Philip Kotler, Retailing includes all the activities involved
in selling goods or services to the final consumers for
personal or non-business use. It is those business firms in
distribution channel that comes at the end of the pipeline
connecting manufacturers and customers.
Changing Scenario of Business and Management
The Govt. of India introduced economically favorable policy for housing in June 2015with a vision to provide shelter for all. There are several projects that were scheduled but could not take off due to the pandemic and the remaining existing ones were halted due to various reasons. Thus, PMAY also faced the brunt of pandemic and this chapter aims at highlighting those limitations and providing future roadmap for PMAY.