Preparation and properties of an intelligent adjustable functional paper for organic cultural relics

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hailiang Yang ◽  
Hailing Zheng ◽  
Yang Zhou
Keyword(s):  
Gas Absorption ◽  
Raw Material ◽  
Fiber Bundles ◽  
Water Molecules ◽  
Natural Minerals ◽  
Clean Environment ◽  
Favorable Structure ◽  
Functional Paper ◽  
Cultural Relics

Abstract Precious organic cultural relics are easily affected by temperature, humidity, and harmful gases in the environment, resulting in embrittlement, fading, mildew, moth damage and other aging forms. An energy-saving and environmentally friendly material is needed to stabilize humidity and adsorb harmful gases in the environment. In this paper, with an intelligent adjustment function, functional paper containing sepiolite and tourmaline natural minerals was successfully prepared. The component of 80 % of wingceltis and 20 % of straw in dry pulp as main raw material was conducive to the desorption of water molecules. As favorable structure inside functional paper, the adsorption point and the adsorption contact area increased by the rough surface of fiber bundles, the addition of sepiolite and the ordered molecular chains of copolymers destroyed. So, the relative humidity could be adjusted to 55 % ± 3 within 2 hours and was stable with functional paper. At the same time, 1.11 ppm sulfur dioxide and 2.98 ppm ammonia could be effectively adsorbed in 10 and 12 h, respectively, by 1 g of paper in a 5 L container. The pH of the paper was adjusted to neutral with tourmaline, even if the pH was changed by acidic or alkaline gas absorption. Therefore, for long-term organic cultural relic preservation, preparing a constant-humidity and clean environment is of great significance. This is possible through this paper.

Long-Term Correlations In Diffusive Motion Of Water Molecules And Rare Gas Atoms In Helium And Argon Aqueous Solutions

2015 ◽  
Vol 60 (8) ◽  
pp. 757-763 ◽  
Author(s):  
V.P. Voloshin ◽  
◽  
G.G. Malenkov ◽  
Yu.I. Naberukhin ◽  
◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Rare Gas ◽  
Water Molecules ◽  
Diffusive Motion ◽  
Rare Gas Atoms

Study of Natural Minerals of U-Ryrochlore-Type Structure as Analogues of Plutonium Ceramic Waste-form

2002 ◽  
Vol 713 ◽  
Author(s):  
Roman V. Bogdanov ◽  
Yuri F. Batrakov ◽  
Elena V. Puchkova ◽  
Andrey S. Sergeev ◽  
Boris E. Burakov
Keyword(s):  
Chemical Shifts ◽  
Pyrochlore Structure ◽  
Type Structure ◽  
Waste Form ◽  
X Ray ◽  
Ceramic Waste ◽  
Natural Minerals ◽  
The Us ◽  
Pyrochlore Type

ABSTRACTAt present, crystalline ceramic based on titanate pyrochlore, (Ca,Gd,Hf,Pu,U)2Ti2O7, is considered as the US candidate waste form for the immobilization of weapons grade plutonium. Naturally occuring U-bearing minerals with pyrochlore-type structure: hatchettolite, betafite, and ellsworthite, were studied in orders to understand long-term radiation damage effects in Pu ceramic waste forms. Chemical shifts (δ) of U(Lδ1)– and U(Lβ1) – X-ray emission lines were measured by X-ray spectrometry. Calculations were performed on the basis of a two-dimensional δLá1- and δLδ1- correlation diagram. It was shown that 100% of uranium in hatchettolite and, probably, 95-100% of uranium in betafite are in the form of (UO2)2+. formal calculation shows that in ellsworthite only 20% of uranium is in the form of U4+ and 80% of the rest is in the forms of U5+ and U6+. The conversion of the initial U4+ ion originally occurring in the pyrochlore structure of natural minerals to (UO2)2+ due to metamict decay causes a significant increase in uranium mobility.

ASSESSMENT OF KIDNEY FUNCTIONAL RESERVE ON THE BACKGROUND OF ANTI-AGGREGATE THERAPY IN CHRONIC KIDNEY DISEASE II-III STAGE

2020 ◽  
Vol 6 (1) ◽  
pp. 49-54
Author(s):  
Khabib Barnoev ◽  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Comparative Study ◽  
Early Stage ◽  
Raw Material ◽  
Functional Reserve ◽  
Functional Reserves ◽  
Term Administration ◽  
Antiaggregant Therapy

The article presents the results of a study to assess the functional reserve of the kidneys against the background of a comparative study of antiaggregant therapy dipyridamole and allthrombosepin in 50 patients with a relatively early stage of chronic kidney disease. Studies have shown that long-term administration of allthrombosepin to patients has resulted in better maintenance of kidney functional reserves. Therefore, our research has once again confirmed that diphtheridamol, which is widely used as an antiaggregant drug in chronic kidney disease, does not lag behind the domestic raw material allthrombosepin

scholarly journals POTENTIALITY OF THE BUGOJNO COAL BASIN, BOSNIA AND HERZEGOVINA

2021 ◽  
Vol 1 (24) ◽  
Author(s):  
Dževad Forčaković ◽  
Rejhana Dervišević
Keyword(s):  
Raw Material ◽  
Northwestern Part ◽  
Material Base ◽  
Coal Basin ◽  
Surface Distribution ◽  
Research Results ◽  
Geological Characteristics ◽  
Quantitative Characteristics

This paper presents research results of the Bugojno coal basin, which contains very significant, but still insufficiently explored lignite reserves. Based on the determined borders of surface distribution and the research results in the northwestern part of the Bugojno coal basin, proved are four coal layers with reserves of over one billion tons of coal. Discussed are geological characteristics of coal layers, their qualitative-quantitative characteristics, spatial potential of deposit and classification of coal layers. Considering the raw material potential and the possibility of expanding the existing raw material base, the Bugojno coal basin has particular importance for the long-term development of lignite exploitation and its use for thermal energy purposes.

scholarly journals PERENCANAAN DAN PENGENDALIAN KAPASITAS PRODUKSI PRODUK RAKITAN RADIO TIPE SOUNESS SNI 4250

2018 ◽  
Vol 20 (1) ◽  
pp. 40-47
Author(s):  
Abdul Rahim Matondang ◽  
Widodo Widodo
Keyword(s):  
Production Process ◽  
Production Planning ◽  
Capacity Planning ◽  
Pure Strategy ◽  
Raw Material ◽  
Optimization Approach ◽  
Production Schedule ◽  
Middle Term ◽  
Individual Product

Production system take an important role in industries, especially in manufacturing industries. This role determine the keys of successful company. Production process is an activity which produce finished product from raw material that involve machine, energy, and technique knowledge. Production process is real activity and can be seen by human being. The problems those always be faced in indutries management’s are the arrangement of production schedule, such lack of inventory or overstock once the settlement of production process isn’t on time. Production planning and control is activity to determine what product that will be produced, how many product that will be produced and how many labors needed in production processes. By using production planning and control’s method, those problems can be minimalized. Aggregate planning is one of production planning a.nd control’s method. By using this method, production planning could be done by using unit of replacement product so that the output of this planning isn’t declared in individual product. So, the output of aggregate planning isn’t planning in form of individual product but aggregate’s product. There are some strategies on aggregate planning such as pure strategy on aggregate planning and mixed strategy on aggregate planning. In this research, method of aggregate planning that used is optimization approach by linier rule. This method used to make long term planning and middle term planning. Long term planning consists of product forecasting and aggregate planning. The middle term planning consist of master production schedule and rough cut capacity planning. The result of this research is capacity needed and capacity available to determine which work center is drum and which isn’t. Conclusion of this research that capacity of each work center in perioad january to december 2018 is non drum. This indicate the good scheduling in capacity planning.

scholarly journals Long and short revolutions towards the Neolithic in western Anatolia and Aegean

2019 ◽  
Vol 46 ◽  
pp. 68-83
Author(s):  
Barbara Horejs
Keyword(s):  
Environmental Conditions ◽  
Social Life ◽  
Cultural Practices ◽  
Current Knowledge ◽  
Raw Material ◽  
Western Anatolia ◽  
Economic Strategies ◽  
Material Procurement ◽  
Similarities And Differences

This paper provides an overview of our current knowledge about the transformation towards the Neolithic in western Anatolia and the Aegean, and offers a narrative for their interpretation. Within the longue durée perspective of the long revolution in the Near East, the first millennia of the Holocene of the Aegean and western Anatolia are contrasted with each other. Economic strategies, environmental conditions, technologies, raw material procurement and cultural practices in the Aegean Mesolithic and the Pre-Neolithic times in western Anatolia are analysed to classify potential similarities and differences. The evidence of new cultural and symbolic practices, eco-nomies, and technologies in the seventh millennium is discussed as the paradox of a short revolu-tion embedded in a long-term process of interaction, knowledge-transfer and adaptation, setting the scene for the Neolithic pioneers establishing a new social life.

scholarly journals Crystal structure of poly[[di-μ3-acetato-tetraaquabis(μ2-cyclohexane-1,4-dicarboxylato)dilanthanum(III)] dihydrate]

2017 ◽  
Vol 73 (12) ◽  
pp. 1926-1930
Author(s):  
R. Drisya ◽  
U. S. Soumya Mol ◽  
P. R. Satheesh Chandran ◽  
M. Sithambaresan ◽  
M. R. Sudarsankumar
Keyword(s):  
Crystal Structure ◽  
Coordination Mode ◽  
Three Dimensional ◽  
Raw Material ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Formula Unit ◽  
Remarkable Feature ◽  
Two Component ◽  
Coordinated Water

The title compound, {[La2(CH3COO)2(C8H10O4)2(H2O)4]·2H2O}nor [La2(ac)2(e,a-cis-1,4-chdc)2(H2O)4]·2H2O, whereacis acetate and 1,4-chdc is cyclohexane-1,4-dicarboxylate anion, is a binuclear lanthanum(III) complex. Each metal atom is decacoordinated by four O atoms from two distinct 1,4-chdc2−ligands, four O atoms from three acetate groups and two O atoms from coordinated water molecules to form a distorted bicapped square-antiprismatic geometry. Two non-coordinated water molecules are also present in the formula unit. The most remarkable feature of this compound is that it possesses a onlycisconformation for cyclohexane-1,4-dicarboxylic acid, although the raw material consists of a mixture ofcisandtransisomers. The μ3-η2:η2coordination mode of the bridging acetate group and the flexible dicarboxylate fragments of 1,4-chdc2−results in the formation of infinite two-dimensional lanthanide–carboxylate layers within the crystal structure. The directionality of strong intermolecular O—H...O and weak C—H...O interactions provides robustness to the layers, which leads to the construction of a three-dimensional supramolecular network. The crystal studied was refined as a two-component twin.

Optimizing the consolidated budget of the development Program for a diversified industrial complex

2021 ◽  
Vol 57 (3) ◽  
pp. 79
Author(s):  
Oleg Braginsky
Keyword(s):  
Development Program ◽  
Value Added ◽  
Raw Material ◽  
Economic Downturn ◽  
Industrial Complex ◽  
Investment Projects ◽  
National Budget ◽  
Chemical Complex ◽  
Sustainable Economic Growth

In a situation of economic downturn, complicated by COVID-19 pandemic, which has covered many countries in the world, including Russia, it is necessary to choose ways to ensure more or less sustainable economic growth. The condition in the Russian chemical complex is analyzed. The choice of the chemical complex as one of the priority ways of the Russian economic development has been substantiated. A conditional long-term development Program for the Russian chemical complex is worked out. This Program takes into account the shortcomings of fragmented government measures for the development of chemical and petrochemical industries. It is argued that the implementation of the Program will allow increasing the domestic supply for high-value-added hydrocarbon products, generally contributing to the reduction of the raw material share of Russian exports. The authors' earlier research to optimize structure of the development program for a large industrial complex in conditions of limited resources is developed. In particular, an approach to the choice of the optimal structure of the development program`s budget, consisting of such sources of financing as assignments from the national budget, private capital, long-term credits, as well as reinvested profit from investment projects participating in the Program is proposed. The results of economic and mathematical modeling and computer experimentation for optimizing structure of this Program`s consolidated budget, which make it possible to significantly improve its target indicators, as well as to involve socially significant low-profit investment projects of small and medium-sized businesses, are presented.

Enterprise Expansion and Opportunities for Expansion in Agriculture

2018 ◽  
pp. 88-101
Keyword(s):  
Agricultural Sector ◽  
Manufacturing Sector ◽  
Youth Participation ◽  
Raw Material ◽  
Going Concern ◽  
Agricultural Transformation ◽  
Agricultural Enterprise ◽  
Business As Usual

It has often been stated that the agricultural sector has the potential to provide the needed raw material for the manufacturing sector. It is pertinent to clearly identify this potential, interrogate why it still remains potential, and more importantly, suggest workable ways to sustainably and profitably exploit the potential as a going concern. This chapter is therefore designed to focus on enterprise expansion and opportunities for expansion in agriculture. The chapter is divided into the following sections: “Characteristics of Agriculture in Nigeria,” “Determinants of Youth Participation in Agriculture,” “Agricultural Enterprise Expansion and Agricultural Transformation,” “Enhancing Enterprise Expansion,” and “Opportunities in Agriculture.” The chapter concludes that for the potential of agriculture in an economy to be realized, the relevant stakeholders should know that business as usual is not an acceptable option; yield-increasing and enterprise-expansion-inducing strategies should be implemented in both the short and the long term. Recommendations are made to enable those engaged in agriculture to profit by it and increase in both output and in scale.

scholarly journals Properties of Cement Mortar Using Limestone Sludge Powder Modified with Recycled Acetic Acid

2019 ◽  
Vol 11 (3) ◽  
pp. 879
Author(s):  
Hwa-Sung Ryu ◽  
Deuck-Mo Kim ◽  
Sang-Heon Shin ◽  
Wan-Ki Kim ◽  
Seung-Min Lim ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Cement Mortar ◽  
Surface Characteristics ◽  
Calcium Acetate ◽  
Raw Material ◽  
Limestone Powder ◽  
Low Carbon ◽  
Pore Filling ◽  
Initial Strength

One of the various methods of manufacturing low-carbon cement is substituting limestone powder as a raw material or admixture. Limestone sludge powder (LSSP) has the same composition as that of limestone powder. The surface characteristics of LSSP powder modified with recycled acetic acid (RAA) and the characteristics of cement using this modified LSSP as a substitute were investigated in this study. The surface of LSSP modified with RAA was converted into calcium acetate and had a large grain size. When conventional LSSP was used as a substitute for cement, the initial strength increased owing to improved pore filling; however, the strength after 28 days of aging was lower than that of non-substituted cement. In the case of modified LSSP being replaced with cement at up to 10% of the cement weight, however, the calcium acetate on its surface increased the amount of hydration products in the cement, thereby increasing both the initial and the long-term strength.

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