scholarly journals The investigation and provenance of glass vessel fragments attributed to the tomb of Amenhotep II, KV35, Valley of the Kings

Archaeometry ◽  
2021 ◽  
Author(s):  
V. Kemp ◽  
W. Brownscombe ◽  
A. J. Shortland
Keyword(s):  
Glass Vessel

scholarly journals Validation of chemotherapy drug vapor containment of an air cleaning closed-system drug transfer device

2021 ◽  
pp. 107815522110306
Author(s):  
Galit Levin ◽  
Paul JM Sessink
Keyword(s):  
Activated Carbon ◽  
Closed System ◽  
Membrane Filter ◽  
Drug Transfer ◽  
Glass Vessel ◽  
Air Cleaning ◽  
No Release ◽  
Activated Carbon Filter ◽  
Carbon Filter ◽  
Transfer Device

Purpose The purpose of this study was to test the efficacy of ChemfortTM, an air filtration closed-system drug transfer device to prevent release of chemotherapy drug vapors and aerosols under extreme conditions. The air cleaning system is based on the adsorption of drug vapors by an activated carbon filter in the Vial Adaptor before the air is released out of the drug vial. The functionality of the carbon filter was also tested at the end of device’s shelf life, and after a contact period with drug vapors for 7 days. Cyclophosphamide and 5-fluorouracil were the chemotherapy drugs tested. Methods The Vial Adaptor was attached to a drug vial and both were placed in a glass vessel. A needle was punctured through the vessel stopper and the Vial Adaptor septum to allow nitrogen gas to flow into the vial and to exit the vial via the air filter into the glass vessel which was connected to a cold trap. Potential contaminated surfaces in the trap system were wiped or rinsed to collect the escaped drug. Samples were analyzed using liquid chromatography tandem mass spectrometry. Results Cyclophosphamide and 5-fluorouracil were detected on most surfaces inside the trap system for all Vial Adaptors without an activated carbon filter. Contamination did not differ between the Vial Adaptors with and without membrane filter indicating no effect of the membrane filter. The results show no release of either drug for the Vial Adaptors with an activated carbon filter even after 3 years of simulated aging and 7 days of exposure to drug vapors. Conclusions Validation of air cleaning CSTDs is important to secure vapor and aerosol containment of chemotherapy and other hazardous drugs. The presented test method has proven to be appropriate for the validation of ChemfortTM Vial Adaptors. No release of cyclophosphamide and 5- fluorouracil was found even for Vial Adaptors after 3 years of simulated aging and 7 days of exposure to drug vapors.

scholarly journals An investigation of the effects of variations in the radiation factor on the efficiency of dewar vessels

1926 ◽  
Vol 112 (760) ◽  
pp. 136-151
Keyword(s):  
Hot Water ◽  
Liquid Oxygen ◽  
Radiation Factor ◽  
Research Committee ◽  
Spherical Type ◽  
Glass Vessel ◽  
A Value ◽  
Dewar Vessel ◽  
Rate Of Cooling ◽  
Rate Of Evaporation

During the course of some work on Dewar vessels, which was carried out by one of us (B. L.) and S. F. Gates for the Oxygen Research Committee, a curious anomaly was noticed in the behaviour of an all-metal Dewar vessel. This was a commercial copper vessel of the usual spherical type with a long narrow neck of an alloy of low heat-conductivity; its capacity was two litres. The rate of evaporation of liquid oxygen stored in this vessel was approximately double that of liquid oxygen stored in a silvered glass flask of like capacity; but, when equal weights of hot water were put into each of the vessels, it was found that the rate of cooling of the water in the copper vessel was actually slower than in the silvered glass vessel. It appeared, then, that the copper vessel was only half as efficient as a silvered glass one of like capacity for the storage of liquid oxygen, whereas its efficiency for the storage of hot water was greater than that of the silvered glass vessel. This investigation arose out of a desire to explain the apparent anomaly. Previou work on the factors which influence the efficiency of Dewar vessels has been carried out by Dewar ('Proc. Roy. Inst.,' 1898, p. 815), Banneitz, Rhein and Kurze ('Ann. d. Phys.,' 1920, vol. 61, p. 113), and Briggs ('Proc. Roy. Soc. Edin.,' 1920, vol. 51, p. 97). These investigations have dealt with the efficiency of Dewar vessels considered only as containers for liquid air or oxygen, and the above-mentioned anomaly has therefore not been noticed. Briggs ( loc. cit .) worked with vessels with the vacuum-adjacent surfaces of polished gilding metal (95 per cent. copper). From his results on the rates of evaporation of liquid oxygen from these vessels, he calculated a value for the emissivity of the polished surfaces which was considerably greater than that anticipated from the usually accepted value for copper. This observation is intimately connected with that of Lambert and Gates and will be referred to later.

A Permanent-Magnet Array to Maintain3He Gas Polarization Inside a Glass Vessel for Applications in High-Energy Laser Physics

2016 ◽  
Vol 26 (4) ◽  
pp. 1-4 ◽  
Author(s):  
Helmut Soltner ◽  
Markus Buscher ◽  
Peter Burgmer ◽  
Ilhan Engin ◽  
Benny Nauschutt ◽  
...  
Keyword(s):  
Laser Physics ◽  
Permanent Magnet ◽  
High Energy ◽  
Glass Vessel ◽  
Energy Laser ◽  
High Energy Laser

scholarly journals A 12th century set of marvered purple glass vessels from Branicevo (Serbia)

Starinar ◽  
2018 ◽  
pp. 151-173
Author(s):  
Dragana Spasic-Djuric ◽  
Sonja Jovanovic
Keyword(s):  
Balkan Peninsula ◽  
Byzantine Empire ◽  
Urban Centre ◽  
Glass Vessel ◽  
12Th Century ◽  
Archaeological Excavations

During the 2011 archaeological excavations at the Mali Grad site in Branicevo, a set of at least 16 vessels made of translucent dark-purple glass and decorated with marvered opaque white trails was discovered. This unique glass assemblage, consisting of at least eight bowls, three bottles, two cylindrical flasks and three further vessels which can be possibly attributed to flasks, was found in the most significant archaeological context in the urban centre of Branicevo, in the layer above the floor in House No 4. According to other archaeological finds from the same context, coins in particular, the glass vessel set is dated to the 12th century. Importantly, the finds from Branicevo are so far the earliest securely-dated vessels of this type in the territory of the Byzantine Empire, post-dating the reestablishment of its control over the Balkan Peninsula in the 11th century.

scholarly journals IV. Impact with a liquid surface studied by the aid of instantaneous photography. Paper II

1900 ◽  
Vol 194 (252-261) ◽  
pp. 175-199 ◽  
Keyword(s):  
Liquid Surface ◽  
Thin Glass ◽  
Water Line ◽  
Glass Vessel ◽  
Camera Lens ◽  
General Arrangement ◽  
Set Up ◽  
The Impact ◽  
Rough Sphere ◽  
Smooth Sphere

In a previous paper (‘Philosophical Transactions,’ A, 1897, vol. 189, p. 137) we have drawn attention to the fact that the disturbance set up in a liquid by the impact of a rough sphere falling into it, differs in a very remarkable manner from that which follows the entry of a smooth sphere. In the present paper we describe further experiments, made with the object of ascertaining the reason of this difference, and give the conclusions reached. It appeared desirable, in the first place, to take instantaneous photographs of the disturbed liquid below the water-line. These were easily obtained by letting the splash take place in an approximately parallel-sided thin glass vessel (an inverted clock-shade) illuminated from behind. The liquid surface when undisturbed was about level with the middle of the camera-lens, which was focussed for the sphere when under water. The general arrangement of the optical apparatus will be suffi­ciently understood from the accompanying cut (fig. 1). The method of timing the illumination was that already described ( loc. cit. ).

House I 10,1

2007 ◽  
Author(s):  
Penelope M. Allison
Keyword(s):  
The South ◽  
The West ◽  
Glass Vessel ◽  
Unknown Type ◽  
West Wall ◽  
North East ◽  
The North ◽  
Volcanic Deposit

In November 1926 the excavators recorded moving lapilli from in front of this house and from the entrance but no finds were reported in these areas. On 8 July 1932 they recorded removing disturbed volcanic deposit from the middle levels in the northeast area of this insula. A breach (min. h.: 2 m), now patched, in the south end of the west wall of room 2 and 1.05 m above the floor, presumably penetrated into this space and documents disturbance after ad 79. Elia observed that the room had been covered and had been divided for all or part of its length by a ‘tramezzo ligneo’ which Ling interprets as a wooden partition to screen the stairway. In the north-east corner, are three masonry steps from a stairway which Ling argued ascended along the east wall. Ling argues that the installation of this stairway would have put out of commission the recess and lararium painting (dimensions: 0.55 m × 0.4 m) behind it. The remains of a late Third Style decoration are found on the walls. The loose finds from near the north entrance of this space and from near the entrance to room 3 were predominantly door-fittings, with the possible exception of a small marble base. A small key reported in the latter location may originally have been from storage furniture but was unlikely to have been in use as no other remains of such furnishings were recorded. The only other find in this area was a glass vessel of unknown type. Elia called this room an ‘atrium’. The finds are not particularly diagnostic but, even if this area was disturbed, they hint that it had been relatively unencumbered with furnishings, probably serving predominantly as a reception and access area for the rest of the house. The breach in the south end of the west wall of this room implies that it may have been disturbed after ad 79. The walls had a simple painted decoration but this room had no evident fixtures. According to Elia it was an ‘oecus’. The limited ceramic finds (a jug, a terra sigillata dish, and a lamp) are associated with lighting and probably with the serving or storage of foodstuffs.

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