A high specific productivity tank furnace

1978 ◽  
Vol 35 (2) ◽  
pp. 65-68
Author(s):  
V. I. Orzhevskii ◽  
V. I. Romanov ◽  
V. A. Il'inskii ◽  
A. D. Al'ter
Keyword(s):  
Tank Furnace ◽  
Specific Productivity ◽  
High Specific Productivity

Productivity of the plum (Prunus domestica L.) cultivars and elite forms in the conditions of the Right-Bank Lisosteppe of Ukraine

2021 ◽  
pp. 45-51
Author(s):  
V.V. Filiov ◽  
◽  
O.A. Kishchak ◽  
Yu.P. Kishchak ◽  
V.A. Kryvoshapka ◽  
...  
Keyword(s):  
Cross Section ◽  
Specific Productivity ◽  
Research Station ◽  
Prunus Domestica ◽  
Horizontal Projection ◽  
Productivity Level ◽  
Crown Volume ◽  
High Specific Productivity ◽  
Early Ripening ◽  
The Right

The authors present the assessment of the yield, vigor and productivity of the plum cultivars and elite forms in the conditions of the Right-Bank Lisosteppe of Ukraine. The researches were carried out during 2018-2020 at the L.P. Symyrenko Research Station of Pomology of the Institute of Horticulture of NAAS of Ukraine. 14 cultivars bred at the mentioned institution were studied as well as 9 elite forms. The significant differences were revealed as concerns the trees vigor and crown habitus. According to the vigour cvs and elite forms were divided into groups as follows: low-holed (with the crown volume up to 15 m3), in particular, Oda, Nenka, Herman, 12516, 8124, 8143; middle-growing (15-20 m3) – Record, Zamanchyva, Dobra, Stanley, Bluefree, President, 9605, 7756, 9996; vigorous (over 20 m3) – Reinclaude Karbysheva, Čačanska Najbolja, Yantarna Mliivska, Tophit, Shtuthart, 8087, 7794, 8110. According to its results concerning the productivity, level early-ripening cultivars Nenka, Oda and Herman (14.2-15.1 t/ha) distinguished themselves, in the group of medium-ripening ones – Čačanska Najbolja, Yantarna Mliivska, Zamanchyva, Dobra and the elite form 12516 (15.6-16.5 t/ha), among late-ripening cultivars – Bluefree and the hybrids 8124 and 8143 with a yield of 16.3-16.4 t/ha. The same cultivars are characterized with high specific productivity, which reflects the density of the crop per unit of the crown volume, the area of its horizontal projection and the cross section of the trunk – 2.7-3.9 kg/m3, 5.2-6.6 kg/m2 and 0.12-0.20 kg/dm2 respectively. The optimum density of the placement of the trees with the different vigor of the rootstock myrobalan plum with the orbicular small sized crown was established applying the method of the mathematical modelling, in particular for low-growing cultivars -1111 trees/ha, middle-growing varieties – 667 trees/ha, vigorous strains – 555 trees/ha.

scholarly journals Reduced viscosity mutants of Trichoderma reesei with improved industrial fermentation characteristics

2021 ◽  
Author(s):  
Elizabeth Bodie ◽  
Aleksandra Virag ◽  
Robert J Pratt ◽  
Nicholas Leiva ◽  
Michael Ward ◽  
...  
Keyword(s):  
Trichoderma Reesei ◽  
Insertional Mutagenesis ◽  
Biomass Concentration ◽  
Volumetric Productivity ◽  
Specific Productivity ◽  
Secreted Protein ◽  
Single Strain ◽  
Reduced Viscosity ◽  
High Specific Productivity ◽  
Morphological Mutants

Abstract Morphological mutants of Trichoderma reesei were isolated following chemical or insertional mutagenesis. The mutant strains were shown to have reduced viscosity under industrially-relevant fermentation conditions and to have maintained high specific productivity of secreted protein. This allowed higher biomass concentration to be maintained during the production phase and, consequently, increased volumetric productivity of secreted protein. The causative mutations were traced to four individual genes (designated sfb3, ssb7, seb1 and mpg1). We showed that two of the morphological mutations could be combined in a single strain to further reduce viscosity and enable a 100 per cent increase in volumetric productivity.

scholarly journals Cereal extrusion with steam recuperation process

2019 ◽  
Vol 81 (3) ◽  
pp. 17-22
Author(s):  
V. I. Stepanov ◽  
V. V. Ivanov ◽  
A. Y. Sharikov ◽  
M. V. Amelyakina ◽  
D. V. Polivanovskaya
Keyword(s):  
Technology Development ◽  
Raw Materials ◽  
Extrusion Process ◽  
Operating Conditions ◽  
Specific Productivity ◽  
Special Configuration ◽  
Control Factors ◽  
Processed Material ◽  
High Specific Productivity ◽  
Food And Feed

The extrusion process advantage of agricultural raw materials processing into food and feed over traditional technologies is the high specific productivity, energy efficiency and versatility of use. The presence of a large number of control factors and influence on the raw materials quality, such as operating parameters and structural elements, make extrusion a difficult reproducible process when scaling or moving from one installation to another. But this aspect is the reason for the maximum flexibility of extrusion systems and the possibility of their continuous improvement. One of the ways for the extrusion technology development is the improvement of equipment and design solutions in the field of energy saving. Investigations of the thermoplastic extrusion process of wheat grinding with the application of the recovery of steam heat generated by a special configuration of screw elements and its degassing with the feeding into the processed material were carried out in the work. The modernized extruder Werner & Phleiderer Continua 37, supplemented by a developed recuperative unit and a steam line, was used to achieve this goal. An assessment of changes in energy consumption during steam recovery was carried out. The physicochemical properties of the experimental and control samples of wheat grain extrudates obtained under various operating conditions were investigated and determined. It was found out that the steam recovery mode is a statistically significant reason for increasing the humidity of the extruded product from 3.8 to 5.0 bulk density - by 15% relative to the mode without recovery. A decrease in the explosion coefficient and the water-holding capacity of the extrudates during operation in the regenerative mode of extrusion was noticed. The presented method with additional thermal effects on the processed raw materials allows us to expand the technological capabilities of the process of thermoplastic extrusion in obtaining products of various functional and technological purposes.

Inductive Cold Crucible Melting and Characterization of Uranium and Thorium Bearing Murataite Ceramics

2007 ◽  
Author(s):  
O. A. Knyazev ◽  
A. G. Ptashkin ◽  
S. V. Stefanovsky ◽  
M. A. Zen’kovskaya ◽  
S. V. Yudintsev ◽  
...  
Keyword(s):  
Large Scale ◽  
Unit Cell ◽  
Specific Productivity ◽  
Cold Crucible ◽  
Synthesis Conditions ◽  
The Core ◽  
Transmission Electron ◽  
Actinide Partitioning ◽  
High Specific Productivity ◽  
The Difference

Murataite-based ceramics containing 10 wt.% either UO2 or ThO2 were produced by inductive cold crucible melting (ICCM) at operating frequencies of 1.76 MHz and 5.28 MHz and examined using X-ray diffraction and scanning and transmission electron microscopy. High specific productivity was achieved. Average melting ratio was 8.3 kW×h/kg. We identified three distinct murataite polytypes in the U-bearing ceramics: a five- (5C), eight- (8C), and three-fold (3C) fluorite unit cell composing respectively the core, intermediate and rim zones of the grains. In contrast, in the Th-bearing ceramic one of the polytypes with eight-fold (8C) fluorite unit cell was found to be prevailing over two others (5C and 3C). Computer simulation of the major reflection due to the murataite phase in the Th-bearing sample also exhibits superposition of peaks due to three distinct polytypes but one of them (8C) is predominant. The core zone of the murataite in the U-bearing specimens is characterized by UO2 concentrations as high as 12.1 wt%, which successively diminishes in concentration through the intermediate zone to the rim, the latter of which contains 5.2 wt% UO2. Thorium distribution within the murataite crystals is more uniform. The other phases found in the ceramics are crichtonite, rutile and traces of perovskite, Fe/Mn titanate ilmenite/pyrophanite, zirconolite, and vitreous phase. The difference in phase composition and actinide partitioning in the ceramics is influenced by synthesis conditions. Thus, application of large-scale cold crucibles is a prospective route for the development of industrial-scale process and technology for ceramization of actinide-bearing HLW. The advantage of this method is production of zoned crystals with the highest concentrations of actinides and rare earth elements in the core, effectively isolating these elements from potential leach solutions.

Operation intensification methods of aggressive industrial sewage neutralization facilities

2020 ◽  
Vol 76 (11) ◽  
pp. 1149-1153
Author(s):  
N. S. Tsarev ◽  
V. I. Aksenov ◽  
I. I. Nichkova
Keyword(s):  
Cold Water ◽  
Specific Productivity ◽  
Technological Properties ◽  
Technological Parameters ◽  
Preliminary Heating ◽  
Sediment Treatment ◽  
Circulating Water ◽  
Equipment Operation ◽  
Sediment Volume ◽  
Industrial Sewage

To neutralize the waste pickling solutions and rinsing water, resulting from cleaning metal products s surface of rust by acids solutions, lime is used. Being cheap, this method of sewage neutralization has considerable drawbacks. Forming in the technological pipes strong gypsum depositions and low specific productivity of the equipment for sediment dewatering are most significant of them. Characteristic of aggressive industrial sewage, formed at pickling of ferrous metals presented. Methods of elimination of drawbacks of industrial sewage neutralization by lime considered, including stabilization of neutralized industrial sewage and control of properties of the sediment formed. It was noted, that stability of the circulating water can be provided by accelerating of crystallization of the forming gypsum sediments by introducing in it fine priming powder and heating the neutralized water up to 65-70 °С followed by thermal softening of a part of circulating water, removed out of the circulating system. It was shown, that the heating of the water and the ongoing changes of the composition and properties of the sediment result in decrease of filtration resistance 2-3 folds, increase of deposition speed 3-4 folds and decrease the sediment volume 1.5-2 folds comparing with lime neutralization in cold water. Calculated dozes of lime at the heating were taken the same as at the regular lime neutralization. Elimination of the circulating water oversaturation by bi-water gypsum can be reached also by addition into the water of powder-like gypsum pulp - priming powder for microcrystals of the gypsum, followed by aeration during 30-40 min. This method was tested under industrial conditions. Technological properties of the forming sediment can be improved by sediment treatment by flocculants and preliminary heating of the neutralized water up to 65-70 °С. Control of technological properties of the sediment is done by addition of flocculants and heating of the neutralized water. Recommendations for improving operation of the neutralization facilities presented with indicating particular technological parameters of the equipment operation for sewage and sediment treatment. 

Review of the current methods of Chinese Hamster Ovary (CHO) cells cultivation for production of therapeutic protein

2020 ◽  
Vol 17 ◽  
Author(s):  
Shazid Md. Sharker ◽  
Md. Atiqur Rahman
Keyword(s):  
Chinese Hamster Ovary ◽  
Cho Cells ◽  
Mass Production ◽  
Chinese Hamster Ovary Cells ◽  
Chinese Hamster ◽  
Therapeutic Protein ◽  
Specific Productivity ◽  
Ovary Cells ◽  
Further Development ◽  
Interesting Area

Most of clinical approved protein-based drugs or under in clinical trial have a profound impact in the treatment of critical diseases. The mammalian eukaryotic cells culture approaches, particularly the CHO (Chinese Hamster Ovary) cells are mainly used in the biopharmaceutical industry for the mass-production of therapeutic protein. Recent advances in CHO cell bioprocessing to yield recombinant proteins and monoclonal antibodies have enabled the expression of quality protein. The developments of cell lines are possible to upgrade specific productivity. As a result, it holds an interesting area for academic as well as industrial researchers around the world. This review will concentrate on the recent progress of the mammalian CHO cells culture technology and the future scope of further development for the mass-production of protein therapeutics.

Correlation of the diamond/matrix interphase zone structure with tool efficiency obtained by technology combining diamonds metallization with matrix sintering

2019 ◽  
pp. 111-123 ◽  
Author(s):  
P. P. Sharin ◽  
M. P. Akimova ◽  
V. I. Popov
Keyword(s):  
Thermal Diffusion ◽  
Shielding Effect ◽  
Specific Productivity ◽  
Grinding Wheel ◽  
Zone Structure ◽  
Chromium Powder ◽  
Carbide Matrix ◽  
Diffusion Metallization ◽  
Effect Of Copper ◽  
Diamond Retention

The paper studies structure and phase characteristics of the interphase zone diamond/matrix in dressers made by thermal diffusion metallization of a diamond combined with matrix sintering based on WC–Co and Cu impregnation. The compact arrangement of chromium powder particles around diamond grains and the shielding effect of copper foil create favorable conditions for thermal diffusion metallization of diamond at matrix sintering. A metallized coating chemically bonded with diamond and consisting of chromium carbide and solid solution of cobalt in chromium phases provides a strong diamond retention in the carbide matrix. It was shown that it is formed on the surface of the diamond under the conditions specified in the experiment and the temperature – time sintering mode. The specific productivity of experimental dresser made by hybrid technology at straightening green silicon carbide grinding wheel equaled 51.50 cm3/mg exceeding that of the control dresser made without metallization of diamonds by sintering with copper impregnation by 44.66%.

scholarly journals Optimisation of Recombinant Myrosinase Production in Pichia pastoris

2021 ◽  
Vol 22 (7) ◽  
pp. 3677
Author(s):  
Zuzana Rosenbergová ◽  
Kristína Kántorová ◽  
Martin Šimkovič ◽  
Albert Breier ◽  
Martin Rebroš
Keyword(s):  
Pichia Pastoris ◽  
Plant Defence ◽  
Plant Secondary Metabolites ◽  
Specific Productivity ◽  
Fermentation Conditions ◽  
Threefold Increase ◽  
Dry Cell Weight ◽  
First Time ◽  
Hydrolysis Of ◽  
Dry Cell

Myrosinase is a plant defence enzyme catalysing the hydrolysis of glucosinolates, a group of plant secondary metabolites, to a range of volatile compounds. One of the products, isothiocyanates, proved to have neuroprotective and chemo-preventive properties, making myrosinase a pharmaceutically interesting enzyme. In this work, extracellular expression of TGG1 myrosinase from Arabidopsis thaliana in the Pichia pastoris KM71H (MutS) strain was upscaled to a 3 L laboratory fermenter for the first time. Fermentation conditions (temperature and pH) were optimised, which resulted in a threefold increase in myrosinase productivity compared to unoptimised fermentation conditions. Dry cell weight increased 1.5-fold, reaching 100.5 g/L without additional glycerol feeding. Overall, a specific productivity of 4.1 U/Lmedium/h was achieved, which was 102.5-fold higher compared to flask cultivations.

Improvement on the construction of a float glass tank furnace by physical modeling

1986 ◽  
Vol 80 (1-3) ◽  
pp. 605-612
Author(s):  
Zhou Zhihao ◽  
Zheng Dade
Keyword(s):  
Tank Furnace ◽  
Physical Modeling ◽  
Float Glass ◽  
Glass Tank ◽  
Glass Tank Furnace

Measuring the temperature of the surface of glass in a tank furnace

1985 ◽  
Vol 42 (11) ◽  
pp. 492-495
Author(s):  
S. N. Gushchin ◽  
V. B. Kut'in ◽  
B. A. Fetisov ◽  
G. V. Mukhin ◽  
A. A. Zeibot ◽  
...  
Keyword(s):  
Tank Furnace
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