Die Tablettenfabrikation und ihre maschinellen Hilfsmittel. (Tablet Manufacture and the Machine), by Dr. George Arends and Dr. J. Arends. Fourth revised Edition, 1938. 53 illustrations. 220 pages. Publisher, Julius Springer, Berlin, W. 9, Linkstrasse. Price, R. M. 12.

1940 ◽  
Vol 29 (1) ◽  
pp. 48
Author(s):  
E.G. Eberle
Keyword(s):  
M 12 ◽  
Tablet Manufacture

scholarly journals POS1388 ULTRASOUND FOR PANNICULITIS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 977.1-977
Author(s):  
A. Potapova ◽  
O. Egorova ◽  
O. Alekseeva ◽  
A. Volkov ◽  
S. Radenska-Lopovok
Keyword(s):  
Dynamic Range ◽  
Subcutaneous Fat ◽  
Diagnostic Value ◽  
High Energy ◽  
Contralateral Side ◽  
Imaging Method ◽  
Non Invasive ◽  
M 12

Background:Ultrasound (US) is a non-invasive and safe imaging method that allows in vivo differentiation of the morphological structures of subcutaneous fat (SCF) tissue in in normal and pathology.Objectives:Reveal features of ultrasound changes in SCF in panniculitis (Pn).Methods:57 patients (f – 45, m - 12) aged 18 - 67 years with an initial diagnosis of erythema nodosum and a disease duration of 3.6 ± 1.4 years were examined. In addition to the general clinical examination, a computed tomography of the chest organs and a pathomorphological examination of a skin biopsy from the site of the node were performed. Ultrasound was performed on a MyLabTwice apparatus (ESAOTE, Italy) using a multi-frequency linear transducer (10-18 MHz) with the PD technique, the parameters of which were adapted for recording low-speed flows (PRF 300-600 Hz, low filter, dynamic range - 20-40 dB), the presence of vascularization was assessed not only in the affected area, but also on the contralateral side using high-energy Doppler.Results:33 patients were diagnosed with septal Pn (SPn), 24 - lobular Pn (LPn). In all cases, the diagnosis was verified by histological examination. Ultrasound made it possible to assess the thickness, echoicity and vascularization of the SCF. In 35 patients, significant thickening of the SCF was revealed (as compared to the contralateral side), of which in 14 cases with SPn, in 21 - with LPn. Significant diffuse thickening of the SCF with the contralateral side was observed in 18 patients, incl. in 12 (66%) patients with LPn. Limited thickening was more typical for SPn (73%). A significant increase in the echoicity of the SCF was noted in all forms of Pn. A “lobular” echo pattern with an anechogenic environment was observed in 25 patients, of which 18 (72%) had LPn. An increase in vascularization compared to the contralateral side was recorded in 30 cases (SPn-17, LPn-13).Conclusion:The obtained preliminary results indicate the important role of ultrasound in assessing the depth and prevalence of the inflammatory process at Pn. To clarify the diagnostic value of this method, further studies are needed on a larger sample of patients.Disclosure of Interests:None declared

Образование заряженных наночастиц при ионной бомбардировке границы раздела двух разнородных металлов

2020 ◽  
Vol 22 (5) ◽  
pp. 308-313
Author(s):  
Р.Т. Курбанов ◽  
З.А. Исаханов ◽  
З.А. Мухтаров
Keyword(s):  
M 12

В работе исследована эмиссия кластерных ионов стехиометрического состава AnBm + (n+m≤12) при ионной бомбардировке границ раздела механически состыкованных двух разнородных металлов А и В. Показано, что, наряду с моноатомными кластерными ионами Аn + и Вn + (n≤15), с большой вероятностью могут образоваться гетероатомные кластерные ионы типа AnBm + , состоящие из комбинации отдельных атомов, которые до бомбардировки находились на расстоянии, многократно превышающем (λ>>1 мкм) постоянную кристаллической решетки. Интенсивность выхода ионов AnBm + зависит от площади обхвата пучком бомбардирующих ионов границ раздела состыкованных металлов А и В. Изучен выход ионов AnBm + в зависимости от плотности тока и температуры мишени. Обсуждены возможные механизмы образования гетероатомных ионов AnBm + в рамках существующих моделей образования молекулярных кластеров при ионном распылении. Показано, что ионная бомбардировка границ раздела разнородных металлов может служить как способ синтеза гетероатомных наночастиц вида AnBm + с заданными свойствами, без предварительного изготовления соответствующего сплава.

Synthesis, Characterization and Solution Properties of Novel Cationic Ester-Based Gemini Surfactants

2019 ◽  
Vol 233 (5) ◽  
pp. 707-720 ◽  
Author(s):  
Manorama Panda ◽  
Nazish Fatma ◽  
Mohammad Kamil
Keyword(s):  
Gemini Surfactants ◽  
Alkyl Chain ◽  
Solution Properties ◽  
H Nmr ◽  
Surfactant Solutions ◽  
Cationic Gemini Surfactants ◽  
Ft Ir ◽  
M 12 ◽  
Dimeric Surfactant ◽  
Ft Ir Spectroscopy

Abstract The present investigation involves the synthesis of a series of novel green ethylene oxide-linked diester-functionalized cationic gemini surfactants 2,2′-[(oxybis(ethane-1,2-diyl))bis(oxy)]bis(N-alkyl-N,N-dimethyl-2-oxoethanaminium) dichloride (Cm-DEG-Cm; m = 12, 14, 16). These compounds were characterized by 1H-NMR, MS-ESI (+), FT-IR spectroscopy and elemental analysis; their solution properties were evaluated by surface tension and rheology measurements. The dimeric surfactant, Cm-DEG-Cm, possesses improved physicochemical properties as compared to its monomeric counterpart. Much lower critical micelle concentration (cmc) makes the cationic gemini surfactants more useful for the biomedical, pharmaceutical, industrial and academic sectors. Longer the alkyl chain of surfactants lower are the cmc values, the order is C16-DEG-C16 < C14-DEG-C14 < C12-DEG-C12. For all the three synthesized gemini surfactants no cloud point was noticed in between the temperatures 0 °C to 100 °C at the concentrations 0.002 mM, 0.02 mM and 0.2 mM of the aqueous surfactant solutions which is a beneficial factor for the use of these amphiphiles in various areas of application.

Correlation between Na2SiO3/NaOH and NaOH Molarity to Flexural Strength of Geopolymer Ceramic

2015 ◽  
Vol 754-755 ◽  
pp. 152-156 ◽  
Author(s):  
Nur Ain Jaya ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Che Mohd Ruzaidi Ghazali ◽  
M. Binhussain ◽  
Kamarudin Hussin ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Flexural Strength ◽  
Sodium Hydroxide ◽  
Sodium Silicate ◽  
Alkali Activation ◽  
M 12 ◽  
Alkaline Activator

Clay based geopolymer ceramic were produced through the geopolymerisation process by the alkali activation of kaolin with an activator solution which is mixture of sodium silicate and sodium hydroxide and undergoes heating at elevated temperature. The concentration of NaOH used in this study was in the range of 6 M-12 M. The ratio of kaolin to alkaline activator used is 1.0. Three different ratios of Na2SiO3/NaOH of 0.16, 0.24 and 0.32 were used to investigate the optimum flexural strength. The samples were cured at 80 °C for 24 hours and sintered at temperatures ranging from 900 °C-1200 °C. The optimum flexural strength of 86.833 MPa is obtained when the ratios of Na2SiO3/NaOH is 0.24 with the NaOH concentration of 12M at 1200 °C.

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