نتایج جستجو برای: ventilation flask
تعداد نتایج: 50313 فیلتر نتایج به سال:
Pemasokan barang merupakan salah satu proses bisnis penting dalam setiap perusahaan ritel, untuk memastikan ketersediaan pada toko. Penyampaian informasi yang lambat dan tidak akurat, serta kesalahan-kesalahan laporan permintaan penerimaan menjadi faktor mengganggu pemasokan barang, sehingga penelitian ini dibangun sebuah sistem pemasok mempermudah supplier memperoleh secara cepat akurat. Dalam...
A method for the determination of selenium by ion chromatography (IC) after oxygen flask combustion has been developed and applied to the determination of selenium in bulk prednisolone. We found elemental selenium [Se(0)], selenite ion [Se(IV)] and selenate ion [Se(VI)] (ca. 5, 75 and 20%) in the absorbing liquid obtained by oxygen flask combustion of Se(0), Se(IV) and Se(VI). Se(VI) was direct...
Covid-19 encourages the use of Digital Library sources. especially for students who are completing college assignments, preparing their final project, lecturer in compling teaching material, including researchers. On other hand, technology has developed rapidly. Technological developments have changed pattern human life and business models various organizations order to survive this digital era...
A spectrophotometric method for the determination of chlorine,bromine or iodine ion by using1,5-bis(6-methy1-4-pyrimidyl)carbazone has been established.The ranges of determination were0.355-3.55ppm of Cl-,0.799-7.99ppm of Br and1.27-12.7ppm of F.The proposed method could be applied to the analyses of various halogen-containing organic compounds, including sulfur-containing compounds.Eleven comm...
It is not possible for the wax pattern of most large-volume maxillary resection obturators to be placed into a flask for conventional compression molding processing and positioning of the wax pattern. However, these wax patterns and their channel access design often can be modified and aligned in position for processing with the continuous pressure injection technique. This article describes th...
welders may suffer from welding fumes generated during the process if the ventilation systems are improperly applied. the objective of the present work was to study the mitigation of air pollutants at welding stations, using different ventilation scenarios. four air pollutants including iron oxide, respirable dust, ozone, and carbon monoxide were measured during four different ventilation scena...
conclusions: rsbi and apache ii score in patients with copd exacerbation are of the ability to predict niv requirement, as a predicting factor of non-invasive ventilation requirement. results: patients requiring niv included 43.9 % of all studied patients. rsbi and apache ii score with sensitivity of 94.8 %, (cut off point = 110) and 72 % (cut off point = 14) respectively, had high diagnostic s...
results sixty patients were involved in this study. in asv mode, values including peak airway pressure (p-peak), end-tidal carbon dioxide (etco2), tidal volume and respiratory dead space were significantly lower than simv mode. although the mean value for dynamic compliance had no significant difference in the two types of ventilation, it was better in asv mode. methods in a crossover study, pa...
background: methanol is a colorless and poisonous liquid that is commonly used as an industrial and household solvent. methanol poisoning is a rare but extremely hazardous form of in toxication that affects the central nervous system and causes visual disorder, drowsiness, seizures and coma. case presentation: a 29-years-old man with methanol intoxication presented with drowsiness and acidosis...
The molecular weight of ethyl acetate was determined in this experiment using a formula derived from the ideal gas law and experimental measurements of mass, volume, temperature and pressure of the sample. The molecular weight was determined to be 50 g/mol +/10% (RSD). This value compares unfavorably to the literature value of 88 g/mol [1]. RESULTS AND DISCUSSION The experiment was performed us...
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