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61 Ti - modified silica gel monolithic adsorbent was prepared by impregnation - deposition method.

62 Designed to convey granular products, like silica sand used in the foundry industry.

63 It is simple process, less pollution, low cost, good quality casting, and can meet producing of locomotive casting, that the investment pattern was made from the shell mold was made from silica sol.

64 Methods A new compound was isolated by the silica gel and Sephadex LH-20 column chromatograph, and identified by the physicochemical characters and spectroscopic analysis.

65 The mesoporous silica molecular sieves Zr - MCM - 41 were synthesized in ethylenediamine.

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66 The effects of dilution on the coagulation performance of polysilicate iron coagulant and the species distribution of iron and silica in the said coagulant are evaluated.

67 Silicas and and High-pure Silica brick is almost in the same situation.

68 The high far infrared radiativity, stable radiation coefficient and obviously low electricity consumption of the produced opaque silica glass elements have been experimentally verified.

69 Objective To investigate the toxic effects of Zinc gluconate and Manganous chloride which were used solely and together to oppose the toxicity of silica on alveolar macrophage.

70 The silicone rubber reinforcing filler made by us can replace partly fumed silica.

71 A novel preparation method for amorphous silica from coal - based kaolin was developed.

72 Methods The battlefield thorax close drainage equipment manufactured by our hospital, consisted of unilateral valve, C-shaped puncture needle, and silica gel drainage tube for operation.

73 It was shown that the yield value of colloidal silica sol slurry was increased and its suspensibility was improved by adding some additives.

74 An interesting radiolarian -like silica spherulite was prepared from a water-diethyl ether binary solvent system, which is characterized by SEM, TEM, XRD, and adsorption experiments.

75 A white needle crystal was isolated and purified on systematic extraction of the alkaloid by silica gel column and gradient sublimation from Oxytropis glabra.

76 A fiber taper can evanescently couple to whispering gallery modes (WGMs) in a planar silica microdisk for observing the optical properties of the microdisk cavity.

77 In this study, cement sand paste and common concrete with or without slag(sentencedict.com), fly ash and silica fume were used to investigate some accelerated curing on the strength and permeability of concrete.

78 Thirdly, active carbon is mixed with silica gel and put into coniferous wood pulp fibre to form the active-carbon-silica-gel-purifying-filter-paper.

79 The optical microscope photographs show that the molecular sieve is well dispersed in the silica sol.

80 The thermal expansion values of the precoated non silica and have been measured and contrasted with them of the precoated silica sand on the same conditions.

81 Raw material of production of the Low - Glass is processed mined silica.

82 The pure squalene(99.9%) was separated from liver oil of Mustelus griseus(Pietschmann) by TLC on silver nitrate- impregnated silica gel.

83 Evolution process of crystal structure in acid hydrolysis to synthesizing silica materials with triclinic wollastonite was investigated by means of XRD method.

84 In special building materials, the active silica fume (inorganic material) is used to replace the organic powder so as to improve the quality and duration of products with cement as base stock.

85 With MQ resin as reinforce filling materials, dimethicone as dilution agent, the transparency liquid silicone that used in spinning trademark was prepared by fumed silica.

86 Thus, the mineral crystalline morphology of natural silica sand is an important parameter for use in foundry.

87 It is obvious that the the distribution of silica acid in interstitial water were affected by the contents of biogenic silica and aluminium, and aquiferous proportion as well.

88 Free silica in geological exploration dust is measured by both Xray diffraction and pyrophosphoric acid methods.

89 High reactive penta-coordinated organic silicon was prepared via the reaction of silica with ethylene glycol and potassium hydroxide.

90 The influence of nano - silica on the properties and microstructure of corundum castable is studied.