Early reported measurements can be found in the literature from the beginning of the 1900s. In 1927, Jesser [5] reported measurements of autogenous RH-change for cement mortars with w/c ratios of 0.24–0.36 and noted that the internal RH may be 90% after 1 month of hardening. In 1928, Neville and Jones [6] described an …
Reconstruction of the posterior atrophic mandible by means of onlay bone grafting using an intraoral autogenous bone graft has been the preferred procedure when there is inadequate bone volume to insert dental implants. 10 Rates of up to 40% for graft exposure and resorption in the mid or long term are the main drawbacks of using onlay …
Хичээл нь усан тээрэм хэрхэн эрчим хүчийг бий болгоход чиглэгддэг. Оюутны багууд өдөр тутмын бүтээгдэхүүнээр ажиллаж байгаа усан тээрэм зохион бүтээж, сав газарт загвараа туршиж үздэг. Оюутны усан тээрэм нь гурван ...
The mix design of ultra-high performance concrete (UHPC) is complicated by the presence of many "ingredients." The fundamental packing density allows a simpler mix design with fewer ingredients to achieve optimum packing density and dense microstructure. The optimum particle grading increases the flowability of UHPC and …
autogenous deformation in both concrete practice and research for many years. As a result of Powers' pioneering research [9] around 1940-1950, it became possible to describe and perform theoretical calculations of the phase composition of a hardening cement paste. This enabled Copeland and Bragg [10] and Powers [11] to perform a
The task of the clinician who performs a bone grafting procedure for the enhancement of fracture healing is to choose the right graft or combination of grafts for the biologic and mechanical environment into which the graft will be placed. The factors contributing to a delayed union or nonunion are many. In general they may be divided …
A dynamic simulator of a semi-autogenous grinding operation deduced from first principles coupled to an online parameter estimation scheme able to simulate industrial operations for future control purposes is presented, showing the effectiveness of the system to track the dynamic behaviour of the variables.
Autogenous shrinkage is an important factor for cracking of cement-based materials at early ages. This review summarizes different definitions and testing …
DOI: 10.1016/S0008-8846(96)00202-5 Corpus ID: 137031337; Analyses and models of the autogenous shrinkage of hardening cement paste II. Modelling at scale of hydrating grains @article{Hua1997AnalysesAM, title={Analyses and models of the autogenous shrinkage of hardening cement paste II.
Replication of mini-F plasmid requires the plasmid-encoded RepE initiator protein and several host factors including DnaJ, DnaK, and GrpE, heat shock proteins of Escherichia coli. ... (initiator) and dimers (autogenous repressor) Proc Natl Acad Sci U S A. 1994 Apr 26;91(9):3839-43. doi: 10.1073/pnas.91.9.3839. Authors M Ishiai 1, C Wada, …
During early age, the autogenous and thermal deformations are two of the most important concrete properties that are involved in the cracking risk in cement …
Maiorana C, Beretta M, Salina S, Santoro F. Reduction of autogenous bone graft resorption by means of Bio-Oss coverage: a prospective study. Int J Period Rest Dent. 2005; 1:19–25. [Google Scholar] 18. Benezra Rosen V, Hobbs LW, Spector M. The ultrastructure of anorganic bovine bone and selected synthetic hydroxyapatites used as …
Autogenous Healing in 10-Years Aged Cementitious Composites Using Microfibers and Superabsorbent Polymers . by Didier Snoeck. Didier Snoeck. SciProfiles Scilit Preprints Google Scholar BATir Department, École Polytechnique de Bruxelles, Université Libre de Bruxelles (ULB), 50 F.D. Roosevelt Ave., CP 194/02, 1050 Brussels, …
Background: To date, there are still no clear cut guidelines for the use of autogenous bone or bone substitutes. Aim: The aim of the present review was to analyze the current literature in order to determine whether there are advantages of using autogenous bone (AB) over bone substitutes (BS) in sinus floor augmentation. The …
This paper investigates the influence of temperature on autogenous deformation and early-age stress (EAS) evolution in ordinary Portland cement paste …
The technique was easy to use, but took twice as long as traditional harvesting techniques, and the endoscope was particularly useful in identifying the anatomical structures adjacent to the fascia. Purpose: To describe a technique of endoscopic harvesting of autogenous fascia lata. Methods: A retrospective, …
1 3 Clinical Dentistry Reviewed (2019) 3:17 Page 3 of 9 17 I. Autogenous soft tissue grafts Free gingival graft Nabers rst used the term free gingival graft (FGG).
Cartilage grafts have great value in augmentation rhinoplasty. For most surgeons, an autogenous cartilage graft is the first choice in rhinoplasty because of its resistance to infection and resorption. On the other hand, an allogenous cartilage graft might be preferred over an autogenous graft to av …
It is concluded that autogenous calvarial bone grafts have better mechanical, biologic, and immunologic properties than alloplastic materials and allows the surgeon to reconstruct moderately large cranial defect with ease of access within single or adjacent incision to the operating site with minimal postoperative morbidity and discomfort. Expand
Autogenous bone is still considered the gold standard for most applications; it becomes vascularized and osseointegrates with surrounding bone, thus minimizing the risk of infection, dislodgement, or break-down. Limitations include added operative time for graft harvest, donor site morbidity, graft resorption, molding challenges, and limited …
High-strength engineered cementitious composites (HS-ECCs) have garnered significant attention for their superior mechanical properties and ductility. However, their high …
In this study, we investigate and improve the testing methods for more accurate measurement of the early-age autogenous shrinkage (AS) in concrete. During the first …
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Introduction. Chronic kidney disease leads to a decline of renal function in most patients and eventually develops into end-stage renal disease, thus requiring hemodialysis or peritoneal dialysis to remove toxins and excess fluid [].Hemodialysis is a process in which the blood from the patient's body is fully introduced into a dialyzer and …
Autogenous shrinkage is defined as the self-created bulk shrinkage of a binder system [16].Among the various types of deformations of binder materials, autogenous shrinkage plays an important role, not only because it develops rapidly at early age when the tensile strain capacity of the material remains low, but also that it occurs …
Add-on codes 35685-35686 describe additional procedures or techniques that may be required during a lower extremity bypass graft procedure. They are performed to improve the open and unblocked status of a blood vessel of lower extremity synthetic or autogenous arterial bypass grafts.
Autogenous, often referred to as Custom Made Vaccines (CMVs), are manufactured with the attending veterinarian to address bacterial and viral pathogens. SRP technology induces host immunity against cell wall components called Siderophore Receptors and Porins which transport iron. Iron to bacteria is like oxygen to humans.
