INFLUENCE OF THE BINDER PREPARATION MODE IN THE CONCRETES MANUFACTURE

Abstract Background Epilepsy is a chronic brain disease that affects about 50 million people worldwide, mainly in developing countries. It is treated with anticonvulsant drugs, but in some cases, conventional anticonvulsants have not been effective, leading patients to turn to alternative herbal treatments. The study aimed to identify plants used in traditional medicine for the treatment of epilepsy in southern Mozambique, record the parts used, the method of preparation as well as the mode of administration. Methodology: The study was conducted between April to June 2019. 53 Traditional Medicine Practitioners were interviewed using a semi-structured questionnaire. The data was analyzed by calculating the Percentage of Citation (%FC) and Informant Factor Consensus (IFC). Results A total of 32 medicinal plants belonging to 18 botanical families were identified for the treatment of epilepsy in the southern part of Mozambique. The species, Hugonia orientalis Engl (22.64%), Maclura africana Bur (16.98%), Strychnos spinosa Lam (13.21%), Terminalia sericea Bruch ex DC (13.21%) and Manilkara mochisia (Bark) Dubard (11.32%) were the most cited. The families Annonaceae and Menispermaceae (4 species) were the most representative in number of species. The root was the most commonly used plant part (54.2%), the frequently used preparation mode was decoction (71%), and administration of the remedies was often by oral route. Conclusion Medicinal plants still play an important role in primary health care in the study area. However there is a need to develop pharmacological studies based on these plants to understand the mechanism of action of the bioactive compounds and for the future development of new and more effective anticonvulsant drugs

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A Mössbauer comparative study of the local environment in metastable 304 stainless steel films depending on the preparation mode

Journal of Magnetism and Magnetic Materials ◽

10.1016/s0304-8853(02)00487-0 ◽

2003 ◽

Vol 256 (1-3) ◽

pp. 227-236 ◽

Cited By ~ 17

Author(s):

J.-P. Eymery ◽

N. Merakeb ◽

Ph. Goudeau ◽

A. Fnidiki ◽

B. Bouzabata

Keyword(s):

Stainless Steel ◽

Comparative Study ◽

Local Environment ◽

304 Stainless Steel ◽

Preparation Mode

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Effect of Preparation Mode on the Properties of Mn-Na-W/SiO2 Catalysts for Oxidative Coupling of Methane: Conventional Methods vs. POSS Nanotechnology

Eurasian Chemico-Technological Journal ◽

10.18321/ectj430 ◽

2016 ◽

Vol 18 (2) ◽

pp. 93 ◽

Cited By ~ 10

Author(s):

I.Z. Ismagilov ◽

E.V. Matus ◽

V.V. Kuznetsov ◽

M.A. Kerzhentsev ◽

S.A. Yashnik ◽

...

Keyword(s):

Catalytic Performance ◽

Oxidative Coupling Of Methane ◽

Molar Ratio ◽

High Dispersion ◽

Incipient Wetness Impregnation ◽

Impregnation Method ◽

Polyhedral Oligomeric Silsesquioxanes ◽

Preparation Mode ◽

Slurry Method ◽

Conventional Methods

Reflectance spectroscopic methods the electronic, redox and structural properties of Mn-Na-W/SiO2 catalysts prepared by the incipient wetness impregnation method and mixture slurry method were studied in detail. Since POSS nanotechnology (POSS = polyhedral oligomeric silsesquioxanes) has attracted attention as tooling for synthesis of catalysts with novel properties and functionalities, we expanded this method for the preparation of Mn-Na-W/SiO2 catalyst. The physicochemical and catalytic properties of Mn-Na-W/SiO2 catalysts prepared by conventional methods and POSS nanotechnology were examined comparatively. In all studied Mn-Na-W/SiO2 catalysts both individual oxides (MnOx, WO3) and bimetal oxide phases (Na2WO4, MnWO4) are found in addition to oxide particles of high dispersion. The UV-Vis Diffuse Reflectance indicates that Na+ cations facilitates stabilization of octahedrally coordinated Mn3+Oh cations in the isolated state, while Mn3+Oh promote the disordering of W6+ cations in the supported system. The Mn-Na-W/SiO2 prepared using metal-POSS precursors marks out presence of unglobular SiO2 particles, higher dispersion of MnOx and MnWO4 particles and more easily reducible metal-oxide species. The catalysts prepared by incipient impregnation method and mixture slurry method have practically similar catalytic performance while the catalyst prepared by POSS nanotechnology method shows lower activity and selectivity. At 800‒850 °C the increase of C2 hydrocarbons yield from 4 to 15% and the rise of molar ratio С2Н4/C2H6 from 0.2 to 1 are observed when impregnation or mixture slurry method are used for catalyst preparation instead of POSS nanotechnology method.

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Overview of sorption analysis capabilities for meso- and microporous zeolites nanomaterials

Chimica Techno Acta ◽

10.15826/chimtech.2021.8.3.02 ◽

2021 ◽

Vol 8 (3) ◽

pp. 20210302

Author(s):

S. Tokmeilova ◽

E. V. Maraeva

Keyword(s):

Sample Preparation ◽

Thermal Desorption ◽

Microporous Materials ◽

Inert Gases ◽

Stable Operation ◽

Main Application ◽

Preparation Mode ◽

Desorption Method

In this paper we consider the main application features of the thermal desorption method of inert gases, implemented on the Sorbi MS (Meta, Russia) device, for the analysis of meso- and microporous materials. Recommendations on the choice of measurement modes for stable operation of the Sorbi MS device are offered (including recommendations on mass, sample preparation mode). The article presents the results of the micropores analysis by the t-plot and Sing method.

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Traditional usage of wild edible plants reflecting the dietary habits and the awareness of health care of LI minority in Baoting and Lingshui, Hainan Island, China: An ethnobotanical approach

Bangladesh Journal of Botany ◽

10.3329/bjb.v48i2.47550 ◽

2019 ◽

Vol 48 (2) ◽

pp. 279-287

Author(s):

Dongmei Yang ◽

Xiying Liu ◽

Pingling Fan ◽

Yougen Wu

Keyword(s):

Health Care ◽

Dietary Habits ◽

Hainan Island ◽

Wild Edible Plants ◽

Edible Plants ◽

Structured Interviews ◽

Traditional Markets ◽

Close Relationship ◽

Preparation Mode ◽

Total Species

Traditional usage of wild edible plants reflect the dietary habits as they have potential medicinal functions and the awareness of health care of Li Minority in Hainan Island. To facilitate the use and development of wild edible plants in Hainan Island, information was collected four times by semi-structured interviews in 17 traditional markets of Baoting and Lingshui. Twenty six species belonging to 24 genera under 16 families of vascular plants were recognized as wild edible plants. 84.62% of the total species were annual and perennial herbs. Above ground parts were the most frequently used parts. The most common preparation mode was plain-frying. Heat-clearing was the most common medicinal function. Weather, the size of population and plant diversity in local areas have close relationship with the species richness of wild edible plants traded in traditional markets. Geographical difference and time are not critical for the fluctuation of price.

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Characterization of alkali-modified soy protein concentrate

Acta periodica technologica ◽

10.2298/apt0536011b ◽

2005 ◽

pp. 11-22

Author(s):

Miroljub Barac ◽

Sladjana Stanojevic ◽

Snezana Jovanovic

Keyword(s):

Protein Content ◽

Soy Protein ◽

Soluble Protein ◽

Alkaline Solutions ◽

Aqueous Alcohol ◽

Soy Protein Concentrate ◽

Protein Concentrate ◽

Soluble Protein Content ◽

Preparation Mode ◽

Alkali Modification

To study the influence of the preparation mode, including mild alkali modification, of soy protein concentrate on soluble protein content and composition, some of its nutritive and functional properties were investigated. Soy protein concentrate prepared by aqueous alcohol leaching was modified in mild alkaline solutions (pH 8.0) at 40, 50 and 60? C for 60 minutes and compared with two principal types of commercial soy protein concentrate. Soluble protein content, composition and properties of soy protein concentrate, as well as their potential use are essentially determined by the preparation mode. Limited mild alkali hydrolysis increased protein solubility by 40-71%, while emulsion stability was increased by 18-56%. Major storage soybean proteins exhibited different stability to alcohol denaturation and mild alkali modification. The most susceptible were acidic -A3 - and -A5- subunits of glycinin.

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Vision System for an Autonomous Underwater Vehicle with a Benthos Sampling Function

Journal of Robotics and Mechatronics ◽

10.20965/jrm.2018.p0248 ◽

2018 ◽

Vol 30 (2) ◽

pp. 248-256 ◽

Cited By ~ 2

Author(s):

Shinsuke Yasukawa ◽

Jonghyun Ahn ◽

Yuya Nishida ◽

Takashi Sonoda ◽

Kazuo Ishii ◽

...

Keyword(s):

High Speed ◽

Autonomous Underwater Vehicle ◽

Vision System ◽

Image Acquisition ◽

Underwater Vehicle ◽

Sampling Function ◽

Software Modules ◽

Preparation Mode ◽

Time Required ◽

Mode Tm

We developed a vision system for an autonomous underwater robot with a benthos sampling function, specifically sampling-autonomous underwater vehicle (AUV). The sampling-AUV includes the following five modes: preparation mode (PM), observation mode (OM), return mode (RM), tracking mode (TM), and sampling mode (SM). To accomplish the mission objective, the proposed vision system comprises software modules for image acquisition, image enhancement, object detection, image selection, and object tracking. The camera in the proposed system acquires images in intervals of five seconds during OM and RM, and in intervals of one second during TM. The system completes all processing stages in the time required for image acquisition by employing high-speed algorithms. We verified the effective operation of the proposed system in a pool.

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Effect of Dentin Preparation Mode on the Bond Strength Between Human Dentin and Different Resin Cements

Brazilian Dental Journal ◽

10.1590/0103-6440201801809 ◽

2018 ◽

Vol 29 (3) ◽

pp. 268-274 ◽

Cited By ~ 2

Author(s):

Lara Almeida Cyrillo Cerqueira ◽

Ana Rosa Costa ◽

Ana Maria Spohr ◽

Eduardo Miyashita ◽

Benito André Silveira Miranzi ◽

...

Keyword(s):

Bond Strength ◽

Resin Composite ◽

Testing Machine ◽

Resin Cement ◽

Hybrid Layer ◽

Resin Cements ◽

Diamond Bur ◽

Cross Section Area ◽

Significant Difference ◽

Preparation Mode

Abstract The aim was to evaluate the influence of different dentin preparation mode in the smear layer characteristics (SL), hybrid layer (HL), and microtensile bond strength (µTBS) to dentin with two resin cements. The occlusal dentin of 120 third molars was exposed. The teeth were divided into 4 groups (n=30) according to the dentin preparation mode: 1- fine grain diamond bur; 2- coarse grain diamond bur; 3- multi laminate carbide steel bur; and, 4- ultrasonic CV Dentus diamond bur. Each treated dentin group was divided into 2 sub-groups (n=15) according to the resin cement: (1) RelyX U200 and (2) RelyX ARC. Resin composite blocks were cemented on dentin. After storage at 37o C for 24 h, beams with a cross section area of 1.0 mm2 were obtained, and tested in a universal testing machine at a crosshead speed of 0.5 mm/min. Two additional teeth for each sub-group were prepared to analyze the SL and HL on a scanning electron microscopy. According to Kruskal-Wallis test and Dunn tests, there was no significant difference in µTBS among the rotary instruments within each resin cement group. RelyX ARC obtained higher µTBS values compared to RelyX U200 (p<0.05). RelyX ARC formed evident HL, which was not observed for RelyX U200. The dentin mode preparation did not influence the µTBS of the resin cements. The SL was different for all instruments. The cementing agent is more determinant in the hybrid layer formation and bond strength to dentin than the instruments applied on dentin.

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The status of strontium in biological apatites: an XANES investigation

Journal of Synchrotron Radiation ◽

10.1107/s0909049511032651 ◽

2011 ◽

Vol 18 (6) ◽

pp. 912-918 ◽

Cited By ~ 23

Author(s):

D. Bazin ◽

M. Daudon ◽

Ch. Chappard ◽

J. J. Rehr ◽

D. Thiaudière ◽

...

Keyword(s):

Bone Matrix ◽

Public Health Problem ◽

Fragility Fractures ◽

Local Environment ◽

Major Public Health Problem ◽

Structural Description ◽

Edge Structure ◽

X Ray ◽

The Status ◽

Preparation Mode

Osteoporosis represents a major public health problem and increases patient morbidity through its association with fragility fractures. Among the different treatments proposed, strontium-based drugs have been shown to increase bone mass in postmenopausal osteoporosis patients and to reduce fracture risk. While the localization of Sr2+cations in the bone matrix has been extensively studied, little is known regarding the status of Sr2+cations in natural biological apatite. In this investigation the local environment of Sr2+cations has been investigated through XANES (X-ray absorption near-edge structure) spectroscopy in a set of pathological and physiological apatites. To assess the localization of Sr2+cations in these biological apatites, numerical simulations using theab initioFEFF9X-ray spectroscopy program have been performed. The complete set of data show that the XANES part of the absorption spectra may be used as a fingerprint to determine the localization of Sr2+cationsversusthe mineral part of calcifications. More precisely, it appears that a relationship exists between some features present in the XANES part and a Sr2+/Ca2+substitution process in site (I) of crystal apatite. Regarding the data, further experiments are needed to confirm a possible link between the relationship between the preparation mode of the calcification (cellular activity for physiological calcification and precipitation for the pathological one) and the adsorption mode of Sr2+cations (simple adsorption or insertion). Is it possible to draw a line between life and chemistry through the localization of Sr in apatite? The question is open for discussion. A better structural description of these physiological and pathological calcifications will help to develop specific therapies targeting the demineralization process in the case of osteoporosis.

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