Mukavemet

Düz eksenden oluşan çubukların birbiriyle birleştirilmesiyle elde edilen sistemlere kafes sistemler denir. Çubukların birleştiği noktalara düğüm noktaları adı verilir. Dış çevreye bağlandığı mesnet noktalarıda bir tür düğümdür.

Kamu Yönetimi Ansiklopedisi, 2019

Erişilebilirlik kavramı, hedef kullanıcı kitlesinin tamamının internet sitesindeki tüm uygulama, hizmet ve bilgiye yardımsız erişebilmesini, kullanabilmesini, İçerik üretebilmesini ifade etmektedir. Bir başka ifadeyle web erişilebilirliği engelli ve yaşlı bireyler dâhil olmak üzere tüm kullanıcıların web sayfası arayüzlerine erişebilmesi, kullanabilmesi ve anlayabilmesidir.

Sakarya Üniversitesi İlahiyat Fakültesi Dergisi (SAUIFD)

Sınıfı : No : SORU 1: Şekildeki Bucundan ankastre, A ucundan serbest olan AB kirişinin uzunluğu L=3 m olarak verilmiştir. Kiriş kesiti, üst üste bindirilmiş yapışık olmayan iki adet kare kesitli içi dolu h = 100 mm. x 100 mm boyutlarında olup malzemede elastik modülü E = 200 GPa olarak verilmiştir. AB kirişi, kiriş uzunluğuna bağlı olarak q x = 12 kN/m'lik değerde doğrusal değişim gösteren ve uzunluğu boyunca düşey doğrultuda bir yayılı yük etkisi altında olduğuna göre; a) Mesnet tepki kuvvetlerini hesaplayarak kirişe ait kesme kuvveti ve eğilme momenti diyagramlarını çiziniz (5 P), b) Kirişin eğim ve sehim denklemlerini çıkarıp maksimum eğim ve sehimin oluştuğu yeri ve değerini hesaplayınız (10 P) c) Kirişte oluşan maksimum normal ve kayma gerilmelerinin oluştukları yerleri belirleyip değerlerini hesaplayınız ve B ucunda kesit boyunca gerilmelerin dağılımlarını çiziniz (10 P) SORU 2: Şekilde verilen parçada verilenleri esas alarak a, b ve c noktalarında oluşan normal ve kayma gerilmelerini hesaplayınız (25 P). SORU 3: Şekilde verilen B ve C halatları sağ tafta verilen rijit parçaya bağlanmıştır. Halatların her birinin kesit alanı A = 20 cm 2 ve elastik modülleri E = 200 GPa olarak verilmektedir. A parçası dikey konumda iken kuvvet uygulanmadan önce her bir halatın boyu L = 2 m ve b = 0.5 m olup, sisteme A noktasından 3.5 kN'luk kuvvet uygulanmaktadır. Buna göre; a) B ve C halatlarında oluşan gerilmeleri hesaplayınız (15 P). b) A noktasında yatay yönde oluşan yer değiştirme miktarını hesaplayınız (10 P). SORU 4) Şekilde verilen kolon dış çapı D=50 mm olan içi boş bir tüpün iç çapı D=50 mm olan içi boş diğer bir tüpe (d) mesafesi boyunca geçirilmesi ile elde edilmiştir. Bağlantıda izin verilebilecek maksimum kayma gerilmesi maks 8MPa τ = ve her bir kolonda izin verilebilecek maksimum basma gerilmesi ( ) max 40 b MPa σ = 'dır. Bağlantının şekildeki gibi düşey doğrultuda P=25 kN'luk bir basma kuvvetini taşıyabilmesi için; a) Küçük tüpün iç çapını hesaplayınız (10 P) b) Büyük tüpün dış çapını hesaplayınız (10 P) c) (d) mesafesini hesaplayınız (5 P) Sınav süresi 90 dakikadır.

Atatürk'ün görüşleri ve inkılapları arasında en çok istismar edilen, yanlış anlaşılan, tartışılan ve çoğu zaman Atatürk'ün ''dinsiz'' olarak itham edilmesine sebep olan 'Laiklik' ilkesi günümüzde hala tartışma konusu olmaya devam etmektedir. Yeni Türk Devleti'nin ana temellerinden biri olarak belirtilen bu ilke birçok inkılabı, tartışmayı ve politikayı beraberinde getirmiştir. Bu çalışmamızda da Atatürk'ün Din ve Laiklik hakkındaki görüşlerini ve bu adımda yapılan inkılaplarını ele alacağız.

Energy, 2010

Over the last few years, load growth, increases in intermittent generation, declining technology costs and increasing recognition of the importance of customer behaviour in energy markets have brought about a change in the focus of Demand Response (DR) in Europe. The long standing programmes involving large industries, through interruptible tariffs and time of day pricing, have been increasingly complemented by programmes aimed at commercial and residential customer groups. Developments in DR vary substantially across Europe reflecting national conditions and triggered by different sets of policies, programmes and implementation schemes. This paper examines experiences within European countries as well as at European Union (EU) level, with the aim of understanding which factors have facilitated or impeded advances in DR. It describes initiatives, studies and policies of various European countries, with in-depth case studies of the UK, Italy and Spain. It is concluded that while business programmes, technical and economic potentials vary across Europe, there are common reasons as to why coordinated DR policies have been slow to emerge. This is because of the limited knowledge on DR energy saving capacities; high cost estimates for DR technologies and infrastructures; and policies focused on creating the conditions for liberalising the EU energy markets.

MRS Proceedings, 2006

The control of formation and ordering of self assembled nanostructures, with medium-to long-range order, is a challenge that limits advances in many fields of nanotechnology. Fluctuation x-ray microscopy offers quantitative insight into medium-range correlations in disordered materials at nanometer and larger length scales. Using this novel technique we examined the influence of sol-gel process variables on medium range order in PI-b-PEO/ aluminosilicate bulk films. Nano-structuring of the inorganic materials in these hybrids was directed by polymer self-assembly. We quantitatively examined and compared the medium range correlation between the nanostructures in two different hybrids.

Earth and Planetary Science Letters, 2011

The Parkfield segment of the San Andreas Fault (SAF) is located at the boundary between the creeping segment to the northwest and the locked segment to the southeast. At least 6 historic earthquakes of Mw 6 have occurred in this area, in 1881, 1901, 1922, 1934, 1966 and 2004. The Parkfield segment is characterized by a complex frictional fault behaviour as it represents a transition zone from aseismic creep to stick-slip regime. It has been noted that during the 2004 Parkfield earthquake (Mw 6.0), about 70% of the total (coseismic and postseismic) moment release occurred aseismically. Therefore, it is of particular interest to measure and analyse not only the spatial evolution of surface displacement in this area but also its evolution with time. In this study we focus on in the Parkfield area during the interseismic period before the 28 September 2004 event. We use radar data acquired by the European Space Agency's European Remote Sensing (ERS1-2) satellites to form descending interferograms that we combine to retrieve time series of surface displacements in the period 1993-2004. In particular, we focus on characterising the space and time evolution of surface creep on the Parkfield and Cholame segments. We observe that the spatial pattern of the inter-seismic displacement rate indicates that tectonic strain is not uniformly distributed along strike of the fault over the period 1993-2004, which might reveals a further sub-segmentation of the San Andreas Fault in the Parkfield area. We observe not only a decrease in the creep rate from the Parkfield segment to south of Cholame from 1.4 ±0.3 cm/y to 0.6 ±0.3 cm/y but also a small but significant creep rate increase on the Cholame segment up to 0.2 ±0.1 cm/y. The evidence of episodic creep on the Cholame segment of the SAFZ south of Parkfield is in contrast with previous published interpretations of GPS and trilateration data. This segment of the SAF merits close monitoring as it has been the nucleation area of the 1857 Fort Tejon earthquake and it has shown recent evidence of deep slow slip revealed by deep tremors.

International Journal of Economics, Commerce and Management, 2015

The study aimed to measure the extent to what auditors in the Kingdom of Bahrain recognize the auditing strategies in light of information technology and its impact on the audit process. A field study was conducted on the audit offices in Bahrain. The study ended with a set of findings, most importantly: the lack of adequate level of awareness among auditors in the Kingdom of Bahrain on auditing strategies in light of information technology and its impact on audit, and the low level of use of information technology in various fields and the lack of material resources and software necessary for the implementation of audits. As well as the lack of an appropriate level of scientific and practical training of employees to carry out the audit in light of information technology, and the lack of confidence in electronic procedures and the fear of data loss and the inability to maintain protection, in addition to the fear among employees and the belief that the expansion through the use of information technology will lead to the lay-off of some employees. The study recommended the need to work to increase the level of awareness and knowledge of audit strategies in light of information technology and its impact on the audit process. Care should be taken to provide an appropriate level of scientific and practical training of employees to carry out the audit in light of information technology, and the need to increase the confidence of electronic data through legislation and provide job security and stability among workers.

Corporations and Other Business Organizations: Cases, Materials, ProblemsCorporations and Other Business Organizations: Cases, Materials, Problems

Corporations and Other Business Organizations: Cases, Materials, ProblemsCorporations and Other Business Organizations: Cases, Materials, Problems

Abdominal-pelvic masses are often described in children and make dread malignancy. In adults or in the elderly, these masses are less documented and are rarely bulky and therefore rarely the cause of abdominal pelvic distension. We report 02 cases of abdominal-pelvic masses encountered in subjects aged 76 and 91 years explored on the computed tomography (CT) with the aim to emphasize the contribution of CT in the diagnosis of large abdominal-pelvic masses in the elderly in sub Saharan Africa. The examinations performed on multi-detector scanners of Toshiba and General Electric's brand were done without and after iodinated contrast medium injection. This was in both cases 02 large fluid masses with fine and regular walls measuring respectively 232 and 267mm in diameter. These masses that showed no malignancy was located in the left kidney for the first case making suggest the diagnosis of renal cyst type 2 of Bosniak (one thin partition). As for the second mass, it was a bladder distension on heterogeneous prostatic hypertrophy. The first patient underwent a cystectomy and a left security nephrectomy while the second, by a simple procedure of catheterization has found the solution to his mass. Large abdominal-pelvic masses in geriatrics are usually benign and of urologic origin. The scanner is a diagnostic support and allows the institution of a treatment that is sometimes banal as the setting of a urinary catheter. abdominal pelvic acquisition in spontaneous contrast and another after iodinated contrast medium injection were performed. A large fluid mass (Figure 1) of 237 mm in diameter with a thin wall was highlighted in the left kidney. It presented a thin full partition. There was no contrast enhancement in the mass, wall or internal vegetation. The left kidney was rolled without dilatation of its excretory cavities and surrounding organ and vascular structures were repressed. The

Progress In Electromagnetics Research Letters, 2011

In this paper, for the very first time, triple band rectangular patch antenna loaded with metamaterial has been reported. Maximum directivities demonstrated here for all the three bands are quite high in comparison with previously reported any kind of rectangular patch antenna. This unique triple band performance has been achieved with the help of newly produced TM 0δ0 (3 < δ < 4) mode, symmetric slot loading and parasitic patch adjustment. Application of etched slot and parasitic patch in DPS (double positive)-metamaterial juxtaposed layer loaded antenna has been also demonstrated for the first time. Considering the quite satisfactory performance (S-parameter, radiation pattern and radiation efficiency) of this novel design, we expect that our proposed ideas will be very effective to design all these metamaterial loaded novel rectangular patch antennas.

Aquaculture, 1990

Martinez-Palacios, CA., Ross, L.C. and Rosado-Vallado, M., 1990. The effects of salinity on the survival and growth ofjuvenile Cichlasoma urophthalmus. Aquaculture, 9 1: 65-75.