7—control of cracking in mass concrete

... reciprocal crosses in G 50 . The phenotype could be determined easily in females by dissecting ovaries, but in males, we named the brothers of females of N line with 4 ovarioles ... reduction of the ovariole number with this strain, in order to study the genetic control (chromosomal and epigenetical) in the determinism of the ovariole number in Sitophilus. ... in the laboratory, of rejecting additional effects of irradiation treatment. It was also interesting to study the influence of the reduction of ovariole number on fertility

Ngày tải lên: 09/08/2014, 18:21

... and release of a micro-sphere in the influence of other spheres.They presented different handling results in terms of different combination ofmaterials, size of spheres and speed of end-effector ... study of the van der Waals force started from the observation of the wetting of solids by liquids in the early 1700s In the 1800s, many scientists were interested in thebehaviour of liquids, in ... important property of the Hamaker constant is the combining relations(or combining laws) It is useful in obtaining approximate values for unknown Hamaker constants in terms of known ones It states

Ngày tải lên: 03/10/2015, 21:57

... Screening of the genes involved in 62 E chrysanthemi pv zeae toxin production and regulation 4.2.1 Screening of the Tox- mutants of strain EC1 63 4.2.2 Single Tn5 insertion in the genome of EC1 ... CONTROL OF VIRULENCE IN ERWINIA CHRYSANTHEMI PV ZEAE MUMTAZ BEGUM BINTE MOHAMED HUSSAIN (B.Sc Hons.) (UNIVERSITY OF LEEDS) A THESIS SUBMITTED FOR THE DEGREE OF MASTERS OF SCIENCE INSTITUTE OF ... CONTROL OF VIRULENCE IN ERWINIA CHRYSANTHEMI PV ZEAE MUMTAZ BEGUM BINTE MOHAMED HUSSAIN INSTITUTE OF MOLECULAR AND CELL BIOLOGY DEPARTMENT OF BIOLOGICAL SCIENCES NATIONAL UNIVERSITY OF SINGAPORE

Ngày tải lên: 07/10/2015, 10:02

... diameter of the rete testes and absence of sperm in epididymides of treated dogs The authors concluded that one single intraepididymal injection of 50 mg of zinc arginine causes sterility by blocking ... (1993) injected zinc arginine into the cauda epididymis of adult male dogs and reported that histopathological examination of Trang 5testes after one year of injection revealed decrease in cross ... injection of zinc arginine causes complete necrosis of the caudaepididymal tubules in pre- pubertal dogs and it can cause an irreversible loss of fertility in dogs Neutersol, an intratesticular injection

Ngày tải lên: 21/05/2020, 20:40

... number of grains per spike is imperative parameter for assessment of the impact of weed management treatments on yield Increasing the number of grains per spike will increase the weight of the ... *Corresponding author A B S T R A C T Introduction Wheat is one of the most important rabi cereals contributing 35% of total food grain production in our country Heavy infestation of weeds alone ... Dry matter production of weeds in unweeded plot Y = Dry matter production of weeds in treated plot Weed index (%) The weed index (WI) was calculated by using the following formula (Gill and

Ngày tải lên: 05/08/2020, 23:53

... Chernin, L (2008) Service-life performance of reinforced concrete structures in corrosive envi-ronments In Proceedings of the 1st International Symposium on Life-Cycle Civil Engineering (Biondini ... [15] Liu, Y (1996) Modeling the time-to corrosion cracking of the cover concrete in chloride contaminated reinforced concrete structures PhD thesis, Virginia Polytechnic Institute and State University. ... University of Civil Engineering 1 Introduction Corrosion of structural steel in reinforced concrete structure has drawn major interest from well-known authors in recent decades The process of steel

Ngày tải lên: 20/09/2020, 20:41

... Expression of NFI-C in a benign breast ductile (B) Expression of NFI-C in a malignant ductal carcinoma (C) Expression of E-cadherin in early stage tumor cells (D) Expression of E-cadherin in a malignant ... previous investigations of odontoblasts, NFI-C also induced MET in breast cancer cells via upregulation of KLF4 and E-cadherin and down-regulation of Slug, a dominant regulator of EMT initiation ... by dir-ectly repressing the expression of Snail1, a potent repres-sor of E-cadherin gene expression, and directly binding to the E-cadherin promoter and upregulating E-cadherin ex-pression [10]

Ngày tải lên: 30/09/2020, 12:56

... a mean of reducing microorganisms is gaining more importance both in the treatment of certain drinking water and in advanced treatment of wastewater (Zukovs et al., 1986) As observed in Figure ... continuously incubated at 25°C Samples were taken at 10 min intervals upto 2 h, and phage titer was determined (Yu et al., 2013) In vivo administration of phage in A.salina culture The brine ... control bacterial infections in agriculture, aquaculture, veterinary medicine and humans resulted to indiscriminate use which in turn led to the emergence of multidrug resistant strains in the (Letchumanan

Ngày tải lên: 05/11/2020, 04:55

... focused, indicating the existence of a meaningful separation in at least two areas This result is in line with the prior histological knowledge In addition to confirming prior findings, the resulting ... approach offers a very fine iden-tification of the different tissues of a barley seedling based on the mass spectroscopy data As shown in Fig.5, the root, the center of the developing seedling, the ... 10considered Interestingly, the three substructuresinvestigated in this study show already three differ-ent kinds of motifs: Simple subgroups, core-offshoot structures, and bridging (or chaining) structures

Ngày tải lên: 25/11/2020, 12:28

... making a proper policy choice in Australia’s support of the control of TB in PNG In particular, we ask the following: (i) What would be the returns to Australia in investing in TB control in ... time, and being retreated The resulting model, combining the metapopulations with the compartments, is in the form of a set of non-linear ordinary differential equations solved using Matlab version ... Yes, indeed, since the cost per DALY in incredibly low, ranging from US$ 5 to US$ 28 (column 9 of Table 1), in South Fly, thanks to large gains of basic DOTS program expansion from its existing

Ngày tải lên: 15/10/2022, 10:54

... methodologies in controlling chaotic nonlinear dynamical system,” International Journal of Bifuration and Chaos, vol 3, no 6, pp 1363–1369, 1993 5 C C Hwang, J Y Hsieh, and R S Lin, “A linear continuous ... Studies of Chaos Control Based on Chua’s Circuit System, Beijing Institute of Technology, Beijing, China, 2003 10 N He, Q Gao, C Gong, Y Feng, and C Jiang, “Adaptive tracking control for a class of ... suitable feedback gain can drag Chua’s circuit system to one of its three equilibrium points Moreover, the system initial state, feedback gain, and the position of system equilibrium point have some

Ngày tải lên: 01/11/2022, 08:29

... TP HỒ CHÍ MINH KHOA KỸ THUẬT XÂY DỰNG ************** BÀI DỊCH CHƯƠNG 4: CONTROL OF CRACKING LỚP L02 - HK 211 NGÀY NỘP: 2/1/2022 Giảng viên hướng dẫn: PGS.TS NGUYỄN VĂN HIỆP Sinh viên thực ... thái giới hạn nứt Trang 37TÀI LIỆU THAM KHẢO Professor Mashhour Ghoneim & Associate Professor Mahmoud El-Mihilmy, (2008), DESIGN OF REINFORCED CONCRETE STRUCTURES ... dụng Đây là một giải pháp đơn giản, thường dẫn đến thiết kế không kinh tế 2- Thiết kế cốt thép gia cường sao cho ứng suất phát sinh tại trạng thái giới hạn là fy Tuy nhiên, nhà thiết kế nên kiểm

Ngày tải lên: 18/02/2023, 21:28

... practice in the industry is to maintain a critical speed margin of 15% between the operating speed and the nearest critical speed.The main components of rotor-dynamic systems include bearings and ... this instability.Compressor Surge ModelingThe study of compression system modeling for controlling surge instabilities in turbomachinery has gained significant attention due to the advantages of ... discontinuity in the characteristic curve Non-rotating stall cells typically initiate at the inducer blade and may interact with rotating stall cells in the impeller and diffuser sections.Detecting

Ngày tải lên: 02/11/2023, 11:57

... i.e g(q) = ∂∂ q U(q) Solving for M(q)¨q in the closed-loop Equation (8.2) and substituting in (8.6) we get 2M˙ − Cq was eliminated by virtue of Property 4.2 Re-˙ calling that the vector q d ... analysis of the PD control with gravity compensation for the case in which the desired joint position q d is time-varying is presented in • Kawamura S., Miyazaki F., Arimoto S., 1988, “Is a local linear ... a local linear PD feedback control law effective for trajectory tracking of robot motion?”, in Proceed- ings of the 1988 IEEE International Conference on Robotics and tion, Philadelphia, PA., pp

Ngày tải lên: 10/08/2014, 01:23

... producing full-block cracking The corresponding spacing of full-block cracking in unreinforced concrete would therefore be ap-proximately 1.25H Prior to cracking, the stress in the reinforcement of ... and in Reference 1 The topic ofevaluation and repair of cracks in concrete is covered in de-tail in ACI 224.1R practi-In the design of reinforced concrete structures, cracking ispresumed in the ... required spacing is L′ then the restraining moment of the reinforcing steel at the existing crack spacing of 2L′ would be 0.2f t′BH2 minus the restraining moment of Fig 4.2 for L/H = 2 L′/H A linear

Ngày tải lên: 24/10/2014, 17:26

... 207.1R Mass Concrete 207.2R Effect of Restraint, Volume Change, and Reinforcement on Cracking of Mass Concrete 207.4R Cooling and Insulating Systems for Mass Concrete 207.5R Roller Compacted Mass Concrete ... or the reinforcing steel embedded in the Fig 3.1 Cracking of concrete due to drying shrinkage concrete The combination of shrinkage and restraint develops tensile stresses within the concrete ... potential of shrinkage-compensating concrete in minimizing or preventing shrinkage cracking of exposed concrete surfaces, it is important that positive and uninterrupted water curing (wet covering...

Ngày tải lên: 24/10/2014, 15:46

... strain in the extreme compression fiber of a concrete element (0.003 in. /in. ) strain at first cracking load strain in prestressed reinforcement at ultimate flexure unit shrinkage strain in concrete ... of shrinkage takes place in the first year of life of the structure The average value of ultimate shrinkage strain in both moist-cured and stream-cured concrete is given as 780 x lo4 in. /in in ... in the member due to restrain of axial deformations, the induced stress due to axial restraint has to be included in the calculation of the cracking moment in a manner analogous to that for including...

Ngày tải lên: 24/10/2014, 17:25

... strength of concrete 3) area of concrete cross section in tension 4) number of reinforcing bars in tension 5) size of reinforcing bar 6) effective yield strength or working stress of FRP reinforcing ... with in (25 mm) of concrete deck, failure occurred as a result of combined concrete spalling in the compression zone and shear between concrete inside the grating and concrete above the grating ... smaller decrease of the stress in the laminate over time 5) Increasing the area of FRP in general tends to restrain the reduction of stress in the concrete compressive zone In terms of sensitivity...

Ngày tải lên: 24/10/2014, 17:25

... of Reporting in the Business Information Warehouse What Is the Business Information Warehouse? What Is the Business Information Warehouse? A component of SAP’s New Dimension product, the Business ... Overview of Reporting in the Business Information Warehouse Business Information Warehouse Architecture: An Overview What Is the Business Information Warehouse Server? The Business Information ... series of transformation, mapping, and condensing steps before it is stored in the InfoCubes, the central data containers of BW For more information, see Business Information Warehouse online documentation...

Ngày tải lên: 11/12/2013, 14:15