Design and Optimization of Extraction Process of Sterile Seed Long Fiber

Failures in disk drives are frequently induced by particulate contamination present in the head/disk assembly (HDA). The sources and characteristics of debris vary with component material within the HDA. The inherently contaminating nature of manufacturing component parts requires that those parts be carefully cleaned and that their cleanliness be evaluated against a specified standard. Ultrasonic cleaning of substrate surfaces, and turbidity/liquid-particle-count (LPC) measurement of extracted-contaminant concentration and size distribution are popular techniques in this regard. Two factors can be used to determine the suitability of ultrasonic surface cleaning. The first is defined here as the maximum cleaning potential, that is, how clean the surface can get when subjected to a multistage-extraction process. And the second concerns the first-stage cleanability of the surface, that is, what fraction of the total cleaning action occurs in the first ultrasonic stage. These two fundamental cleaning parameters described here are closely linked to the nature of adhesive interaction between the contaminant particle, the substrate surface, and any intervening liquid. A predictive procedure to rank various materials with respect to their maximum cleaning potential and their first-stage cleanability is presented. Turbidity/LPC data, obtained at IBM San Jose laboratories for several metallic and polymeric parts, are used to develop useful correlations in terms of relevant physical properties of these surfaces. The implications of this predictive model for future design and optimization of ultrasonic cleaning/monitoring processes are also discussed.

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Design and Optimization of Feeding Device for Sterile Seed Long Fiber Extractor

Journal of Physics Conference Series ◽

10.1088/1742-6596/1601/5/052047 ◽

2020 ◽

Vol 1601 ◽

pp. 052047

Author(s):

Juyan Sun ◽

Tong Liu ◽

Jiazhen Liu

Keyword(s):

Design And Optimization ◽

Sterile Seed

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Simulation-based design and optimization and fatigue characteristics for high-speed backplane connector

Advances in Mechanical Engineering ◽

10.1177/1687814019856752 ◽

2019 ◽

Vol 11 (6) ◽

pp. 168781401985675 ◽

Cited By ~ 7

Author(s):

Rong Yuan ◽

Haiqing Li ◽

Qingyuan Wang

Keyword(s):

Fatigue Life ◽

High Speed ◽

Thermal Structure ◽

Extraction Process ◽

Element Analysis ◽

Design And Optimization ◽

Thermal Mechanical Fatigue ◽

Mechanical Fatigue ◽

Application Systems ◽

Fatigue Characteristics

In high-speed interconnect systems, high-speed backplane connectors are widely utilized. Its mechanical reliability is related to the stability of entire application systems directly. Insertion–extraction force and fatigue characteristics are important factors that affect the reliability of high-speed backplane connectors. To enhance the reliability of high-speed backplane connectors, in this study, a single CAD/CAE parametric model of the contacts is established. Not only the dynamic analysis of the insertion and extraction process but also the electro-thermal-structure coupling of the contacts are carried out using finite element analysis. By changing the insertion position of male terminal, the length of female terminal, and the thickness of male terminal, the insertion–extraction force can be optimized. According to the simulation of the insertion–extraction force and the electric-thermal-structure coupling results, both the mechanical life of this connector and the thermal-mechanical fatigue life under electrifying condition are evaluated. The results show that the mechanical life and thermal-mechanical fatigue life were 376 cycles and 286 cycles, respectively. The design solutions can provide the reference for the structural design, optimization, and fatigue life prediction of high-speed backplane connector.

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Freeze-Etch Crystal-Like Structures in Membranous Glomerulosclerosis

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100063883 ◽

1969 ◽

Vol 27 ◽

pp. 394-395

Author(s):

Burton B. Silver

Keyword(s):

Electron Microscopy ◽

Light Microscopy ◽

Sodium Hypochlorite ◽

Kidney Tissue ◽

Extraction Process ◽

Donor Kidney ◽

Unknown Substance ◽

Etched Surface ◽

Standard Fixation ◽

Diseased Kidney

Tissue from a non-functional kidney affected with chronic membranous glomerulosclerosis was removed at time of trnasplantation. Recipient kidney tissue and donor kidney tissue were simultaneously fixed for electron microscopy. Primary fixation was in phosphate buffered gluteraldehyde followed by infiltration in 20 and then 40% glycerol. The tissues were frozen in liquid Freon and finally in liquid nitrogen. Fracturing and replication of the etched surface was carried out in a Denton freeze-etch device. The etched surface was coated with platinum followed by carbon. These replicas were cleaned in a 50% solution of sodium hypochlorite and mounted on 400 mesh copper grids. They were examined in an Siemens Elmiskop IA. The pictures suggested that the diseased kidney had heavy deposits of an unknown substance which might account for its inoperative state at the time of surgery. Such deposits were not as apparent in light microscopy or in the standard fixation methods used for EM. This might have been due to some extraction process which removed such granular material in the dehydration steps.

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Design and Optimization of a Novel Strategy for the Local Treatment of Helicobacter pylori Infections

Journal of Pharmaceutical Sciences ◽

10.1016/j.xphs.2020.11.021 ◽

2020 ◽

Author(s):

Taddese Mekonnen Ambay ◽

Philipp Schick ◽

Michael Grimm ◽

Maximilian Sager ◽

Felix Schneider ◽

...

Keyword(s):

Helicobacter Pylori ◽

Local Treatment ◽

Design And Optimization ◽

Novel Strategy

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Biorefinery implementation for recovery debottlenecking at existing pulp mills- Part II: Techno-economic evaluation

TAPPI Journal ◽

10.32964/tj11.8.17 ◽

2012 ◽

Vol 11 (8) ◽

pp. 17-24 ◽

Cited By ~ 1

Author(s):

HAKIM GHEZZAZ ◽

LUC PELLETIER ◽

PAUL R. STUART

Keyword(s):

Cost Estimation ◽

Process Model ◽

Black Liquor ◽

Pulp Mill ◽

Value Added ◽

Economic Assessment ◽

Extraction Process ◽

Estimation Methods ◽

Precipitation Process

The evaluation and process risk assessment of (a) lignin precipitation from black liquor, and (b) the near-neutral hemicellulose pre-extraction for recovery boiler debottlenecking in an existing pulp mill is presented in Part I of this paper, which was published in the July 2012 issue of TAPPI Journal. In Part II, the economic assessment of the two biorefinery process options is presented and interpreted. A mill process model was developed using WinGEMS software and used for calculating the mass and energy balances. Investment costs, operating costs, and profitability of the two biorefinery options have been calculated using standard cost estimation methods. The results show that the two biorefinery options are profitable for the case study mill and effective at process debottlenecking. The after-tax internal rate of return (IRR) of the lignin precipitation process option was estimated to be 95%, while that of the hemicellulose pre-extraction process option was 28%. Sensitivity analysis showed that the after tax-IRR of the lignin precipitation process remains higher than that of the hemicellulose pre-extraction process option, for all changes in the selected sensitivity parameters. If we consider the after-tax IRR, as well as capital cost, as selection criteria, the results show that for the case study mill, the lignin precipitation process is more promising than the near-neutral hemicellulose pre-extraction process. However, the comparison between the two biorefinery options should include long-term evaluation criteria. The potential of high value-added products that could be produced from lignin in the case of the lignin precipitation process, or from ethanol and acetic acid in the case of the hemicellulose pre-extraction process, should also be considered in the selection of the most promising process option.

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Evaluation of Resistant Starch Quality from Different Types of Banana in Batter Coating Formulation to Reduce Oil Absorption in Fried Food

ICONIET PROCEEDING ◽

10.33555/iconiet.v2i2.21 ◽

2019 ◽

Vol 2 (2) ◽

pp. 115-120

Author(s):

Karissha Fritzi Della ◽

Mutiara Pratiwi ◽

Purwa Tri Cahyana ◽

Maria DPT Gunawan-Puteri

Keyword(s):

Resistant Starch ◽

Extraction Process ◽

Fat Content ◽

Water Retention Capacity ◽

Oil Absorption ◽

Retention Capacity ◽

Fried Food ◽

Musa Paradisiaca ◽

Different Types ◽

Coating Formulation

Fried food is convenient for many people due to its pleasant texture and taste. On the other hand, it comes with the risk of high oil absorption which might lead to certain health problems. Resistant starch (RS) has been known to have a functionality of reducing oil absorption. Three different types of banana: Kepok (Musa paradisiaca formatypica), Raja Bulu (Musa paradisiaca L.) and Ambon (Musa paradisiaca L. var sapientum) were evaluated on its performance when utilized as source of resistant starch especially on their application in reducing oil absorption in fried food. Tempeh was used as the food model. Banana starch (RS2) was isolated through water alkaline extraction process, continued with modification process through three repeated cycles of autoclaving-cooling process to obtain the RS3. RS3 was added into the batter coating formulation at three substitution ratios (10%, 30% and 50%) and then used to coat tempeh before frying. Evaluation of resistant starch in batter and battered productwas conducted on the following parameters: fat content, water retention capacity (WRC), coating pick up and sensory analysis. The result of this study revealed that Raja Bulu showed the most effective result on reducing oil absorption in the food tested. In the three bananas used, the ratio of 50% performed best in coating pick up (highest), WRC (highest) and fat content(lowest) parameters, but not significantly different with the 30% ratio. In terms of sensory acceptance, using Raja Bulu as the selected banana type, 30% of substitution ratio was significantly more preferable by the panelists in crispness, oiliness, and overall acceptance attributes compared to control and other substitution ratios.

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