How to use ‘a period of’ in a sentence

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ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two (2) years from the date of purchase. During the warranty period, and upon proof of…

… significantly elevated abdominal temperatures (T of about 1. 2 ?C) for a period of about 4 h on the day of injection (day 1). Already at the end of day 1 temperature data of the Zy group returned to normal values of control animals and thereafter…

… quadriceps for 3 x 30 min a day from the third postoperative day for a period of 4 weeks. When returning the devices the treatment times were recorded with the result that 68 % of the patients had stimulated the muscle for a period less than half of…

… radiographically over a period of 20 weeks in which no final implant degradation was anticipated. After sacrifice new bone formation was quantitatively and local tissue response qualitatively analyzed from microradiographs and histological sections…

… flowers and the incoming ants of the female flower. This count is performed over a period of time of 5 minutes. In addition, ot conducted an exclusion experiment on three groups of plants (G 1 : Plants with P. pallidula, G 2 : Plants with Lasius niger (linnaeus, 1758) and G 3…

…ŽThe predictability of Lagrangian particle trajectories in the Adriatic Sea a semi-enclosed sub-basin of the Mediterranean. Sea over a period of 1 – 2 weeks is investigated using three clusters consisting of 5 – 7 drifters. The analysis is…

… of the 10 x PBS solutions in which the metals were tested for corrosion resistance over a period of three months. The solution was diluted to 1 x strength and no visible damage to the cells resulted after they were exposed to the media and…

Zooxanthellate colonies of the scleractinian coral Astrangia poculata were grown under combinations of ambient and elevated nutrients (5 µM NO 3 -, 0. 3 µM PO 4 – 3, and 2 nM Fe+ 2) and CO 2 (~ 780 ppmv) treatments for a period of 6…

… shifted to continued breeding success and the management of sustainable zoo populations. There has also been undoubtedly an increase in the maximum and mean longevities of most species. For example, in a period of 30 years, the maximum longevities of gorillas (Gorilla sp.) increased by 62…

Zooplankton biomass consisting of large and small-size copepods, copepod nauplii and tintinnids were investigated over a period of one year at two stations in Funka Bay, Japan. The food requirement of zooplankton was also estimated using…

… recent programs, it is now known that these filaments develop and decay over a period of a few weeks, occur most frequently during the spring and summer (Strub et aL, 1991), and are associ-ated with capes and upwelling regions. These filaments…

… – 100 km) and its coupling to the stratospheric quasi-biennial oscillation (QBO). An upper mesospheric QBO (MQBO) with a period of 27. 5 months has been detected throughout the observational period. The MQBO is found to be out-of-phase with…

… capital Tananarive [now Antananarivo] then, following a period of furlough in England from 1873 to 1875, at Amparibe. Parrett sailed to Madagascar in 1862 as part of a large missionary party comprising Dr and Mrs Andrew Davidson, Mr and Mrs…

… range, electrochemical activity is revealed for the W one. Such an occurrence leads to an increase of capacitance (and current), which is ascribed to a high output current from the dissolution of a lower capacitance W-oxide layer. The environmental stability of the ZnO WG-TFTs is quite good over a period of five months…

All the title complexes were screened for antimicrobial activity by the well diffusion technique using DMSO as solvent. The minimum inhibitory concentration (MIC) values were calculated at 37 °C for a period of 24 h. It has been found that all the complexes are antimicrobially active and show higher activity than the free ligand…

… whereas localized embrittlement is caused by hydrogen migration leading to damage accumulation within a small region over a period of time before catastrophic failure of the component may occur. The parameters like fracture toughness,…

… to the north, 2) a period of relative (but not perfect) thermal stasis at ~ 70 – 60 °C which increases in duration from the south to the north; 3) final-stage cooling to surface temperatures that initiated in all samples between 15 and 10…

… (galvanized) with zinc for corrosion protection. The growth process consists of an unpredictable incubation period (months or perhaps even years) followed by a period of growth at rates as high as 1 mm/year. Zinc whiskers are conductive and…

… via rapid in situ reduction to Zn(0), followed by subsequent reaction with TOP over a period of several hours to produce Zn 3 P 2 nanoparticles. Some degree of control over size was obtained through variance of the TOP concentration in…

… of 188 cases admitted to the NECTR with acute zinc phosphide poisoning over a period of 22  months. Results show that poisoning is more common among females (60. 6 % of cases) than males (39. 4 %); the mean age is nearly 21  years old. The…

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