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تجسيد فکرة الصراع والحماية على مشاهد أختام العصر السومري القديم(2900-2371ق.م) -نماذج مختارة من المتحف العراقي- Embodying the idea of conflict and protection on scenes of seals of the ancient Sumerian period (2900-2371BC) -Selected models from the Iraq Museum- [PDF]
Maǧallaẗ Buḥūṯ Al-Šarq Al-Awsaṭ, 2023 الملخص:يعتمد هذا البحث على دراسة وصفية تحليلية لمجموعة من أختام اسطوانية غير منشورة محفوظة في المتحف العراقي في بغداد، تصور مشاهد هذه الأختام التي تعود بتاريخها الى حقبة الألف الثالث قبل الميلاد واحداً من اکثر المواضيع الفنية أهمية وشيوعاً على أختام ...
عباس زويد موان جبوري +2 more
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Heat Reduction Characteristics of Wear Ring with Umbrella-type Micro-dimple [PDF]
한국정밀공학회지, 2023 For the hydraulic cylinder system of construction equipment to function normally, the hydraulic oil should not leak under high pressure, and the leakage begins with various seals of damage.
Young Chan Yoon, Taek Sung Lee
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Revisiting the ‘kriegerischer Gott’ of the Akkadian Period
Religions, 2023 Boehmer’s Die Entwicklung der Glyptik während der Akkad-Zeit (1965), although nearly 60 years old, is still the major work on the cylinder seals of the Akkadian Period (2334–2150 BCE).
Renate Marian van Dijk-Coombes
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Engineering Applications of Computational Fluid Mechanics, 2021 Operation of heavy-duty machines leads to an observation that seals in hydraulic cylinders are frequently subjected to thermal degradation. The basis of this research is the previously proven thesis that the temperature of the liquid in the cylinder and ...
Tomasz Siwulski, Urszula Warzyńska
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The analysis of permissible radial clearance in a piston-cylinder seal [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2023 In this research work, the influence of the radial clearance on the tightness coefficient of the working chamber with different cylinder diameters is considered. The main design scheme with the accepted assumptions is given.
A. G. Nikiforov, L. A. Muslova
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IEEE Access, 2022 Improving spontaneity, shifting control, and efficiency are the main goals of actuators for hydraulic automated transmissions. Friction losses of piston-seals play an essential role in achieving these goals.
Rashad Mustafa +3 more
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Pembuatan seal tabung gas karet alam dengan filler pasir kuarsa sebagai pengganti karbon hitam
Majalah Kulit, Karet, dan Plastik, 2017 This research aimed to make natural rubber-based gas cylinder seals with quartz sand as the filler to replace carbon black. The experiments consisted of the use of 10 phr, 20 phr, 30 phr, 40 phr, and 50 phr of quartz sand. The gas cylinder seals produced
Suharman, M. Harun
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Mesopotamian cylinder seals - an epigraphic study.
Revista do Museu de Arqueologia e Etnologia, 2000 The study of cylinder seals is important not only because of its iconography but also because of inscriptions. This article analyzes some texts of a rich merchant from Larsa in the Old Babylonian period.
Katia Maria Paim Pozzer
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The Origin of the Discovered Urartian Bulla in Ziwiye
Studies in Ancient Art and Civilization, 2023 There are several discovered Urartian artifacts and among them are the bullae. They are sometimes inscribed and sealed with cylinder and/or stamp seals. The impressions sometimes contain an inscription along with a royal, mythical or ritual scene. Royal
Maryam Dara
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Experimental determination of conditional clearances for cylinder piston seals of compressor units [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019 The current problem of determining the dependence of the conditional clearance in the cylinder-piston seal on the operating pressure at a fixed piston is solved by the authors in this paper.
S. S. Busarov +2 more
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