scholarly journals Techno-economic Analysis on the Production of Zinc Sulfide Nanoparticles by Precipitation Assisted Ultrasonic Radiation Method

2021 ◽  
Vol 1 (1) ◽  
pp. 173-186
Author(s):  
L Astuti ◽  
◽  
R P Dewi ◽  
A Nurdiana ◽  
R Ragadhita ◽  
...  
Keyword(s):  
Zinc Sulfide ◽  
Large Scale ◽  
Net Present Value ◽  
Ultrasonic Method ◽  
Feasibility Analysis ◽  
Analysis Method ◽  
Ultrasonic Radiation ◽  
Radiation Method ◽  
Zinc Sulfide Nanoparticles ◽  
Economic Perspectives

Zinc sulfide is a material that has many uses in various fields. Zinc sulfide is deriving from the mineral sphalerite. The purpose of this study was to evaluate the feasibility of producing zinc sulfide from zinc acetate and sodium sulfide using the precipitation-assisted ultrasonic radiation method. This method is the most efficient method for the synthesis of zinc sulfide nanoparticles, because it does not take much time and the resulting product is high. The evaluation was done from the engineering and economic perspectives. The feasibility analysis method from the engineering perspective was done by designing the initial production design on a large scale, whereas the analysis from an economic perspective was done by calculating various economic parameters, that is Gross Profit Margin, Cumulative Net Present Value, Internal Rate Return, Payback Period, Break Event Point, and Profitability Index. The engineering perspective showed that the production of zinc sulfide nanoparticles can be done on a large scale due to the commercial availability of materials and tools. Based on the economic evaluation, the production of zinc sulfide nanoparticles by precipitation-assisted ultrasonic method is ideal for an industrial scale. Earned increased profits over 20 years, the payback on investment costs lasted only two years. We hope that this study can provide references to readers, industry, and researchers regarding the feasibility analysis of the production of zinc sulfide nanoparticles using the precipitation-assisted ultrasonic radiation method

ALTERNATIF INVESTASI BISNIS PERIKANAN TANGKAP PELAGIS DI KOTA AMBON

2018 ◽  
Vol 2 (2) ◽  
pp. 44-57
Author(s):  
H Matakupan ◽  
Johanis Hiariey ◽  
A Tupamahu ◽  
M S Baskoro
Keyword(s):  
Net Present Value ◽  
Feasibility Analysis ◽  
Internal Rate Of Return ◽  
Analysis Method ◽  
Present Value ◽  
Ahp Method ◽  
Break Even Point ◽  
Pelagic Fishing ◽  
Hierarchy Process

Investors can determine the appropriate investment alternatives in business, if they have calculated business feasibility based on investment criteria. Based on investment criteria, investors can determine investment alternatives appropriately. Research on investment alternatives in the pelagic capture fisheries business in Ambon City has been carried out to analyze investment feasibility and determine investment alternatives. The investment feasibility analysis method uses investment criteria namely Net Present Value (NPV), Net B/C Ratio, Gross B/C Ratio, Internal Rate of Return (IRR), Payback Period (PP), and Break Even Point (BEP) and determination of investment alternatives with the Analitycal Hierarchy Process (AHP) method. The results of the investment feasibility analysis of 7 types of pelagic fishing businesses in Ambon City, stated that all of them are worth invested. Analysis of investment alternatives with AHP based on investment criteria, determines that investors are best invest in the pelagic capture fisheries business in Ambon City with huhate (pole and line) with a CR value of 0.244 and purse seine with a CR value of 0.205.

Ultrasonic measurement of clamping force for injection molding machine

2019 ◽  
Vol 39 (4) ◽  
pp. 388-396 ◽  
Author(s):  
Peng Zhao ◽  
Yao Zhao ◽  
Jianfeng Zhang ◽  
Junye Huang ◽  
Neng Xia ◽  
...  
Keyword(s):  
Injection Molding ◽  
Measurement Method ◽  
Large Scale ◽  
Force Measurement ◽  
Low Cost ◽  
Ultrasonic Method ◽  
Injection Molding Process ◽  
Propagation Time ◽  
Clamping Force ◽  
Molding Process

AbstractAn online and feasible clamping force measurement method is important in the injection molding process and equipment. Based on the sono-elasticity theory, anin situclamping force measurement method using ultrasonic technology is proposed in this paper. A mathematical model is established to describe the relationship between the ultrasonic propagation time, mold thickness, and clamping force. A series of experiments are performed to verify the proposed method. Experimental findings show that the measurement results of the proposed method agree well with those of the magnetic enclosed-type clamping force tester method, with difference squares less than 2 (MPa)2and errors bars less than 0.7 MPa. The ultrasonic method can be applied in molds of different thickness, injection molding machines of different clamping scales, and large-scale injection cycles. The proposed method offers advantages of being highly accurate, highly stable, simple, feasible, non-destructive, and low-cost, providing significant application prospects in the injection molding industry.

scholarly journals Research on Power Grid Investment Risk of Set-Analysis Method in New Electricity Reform

2018 ◽  
Vol 227 ◽  
pp. 02017
Author(s):  
Jianchang Lu ◽  
Dandan Xing
Keyword(s):  
Net Present Value ◽  
Risk Model ◽  
Power Grid ◽  
Investment Decisions ◽  
Investment Risk ◽  
Analysis Method ◽  
Present Value ◽  
Profit Model ◽  
Factors Affecting ◽  
Pair Analysis

In view of the change in the profit model of the power grid under the new power reform, If grid companies want to improve their economic efficiency, they must expand the scale of effective assets of fixed assets and increase the number of effective assets within the understanding of the demand for electricity.By determining the factors affecting the power grid investment in the new environment,a risk model for the power grid investment under the new power reform is constructed.First,this paper uses the set pair analysis method algorithm and derives the relevant formula to quantify uncertainties in grid investment risk.Then,it gets the results of the calculation of the degree of connection of each scheme and combine set pair events with a net present value less than 0 for each set evens.At last,based on the above results,we get the best investment plan.Verified by the case of the HBN grid company,it shows that the investment risk model established is feasible and can provide an appropriate reference for the new power companies to change their investment decisions.

Linguistically Annotated Reordering: Evaluation and Analysis

2010 ◽  
Vol 36 (3) ◽  
pp. 535-568 ◽  
Author(s):  
Deyi Xiong ◽  
Min Zhang ◽  
Aiti Aw ◽  
Haizhou Li
Keyword(s):  
Large Scale ◽  
Statistical Machine Translation ◽  
Training Data ◽  
Linguistic Knowledge ◽  
Analysis Method ◽  
Complementary Information ◽  
New Approach ◽  
Parse Trees ◽  
New Challenges ◽  
Insight Into

Linguistic knowledge plays an important role in phrase movement in statistical machine translation. To efficiently incorporate linguistic knowledge into phrase reordering, we propose a new approach: Linguistically Annotated Reordering (LAR). In LAR, we build hard hierarchical skeletons and inject soft linguistic knowledge from source parse trees to nodes of hard skeletons during translation. The experimental results on large-scale training data show that LAR is comparable to boundary word-based reordering (BWR) (Xiong, Liu, and Lin 2006), which is a very competitive lexicalized reordering approach. When combined with BWR, LAR provides complementary information for phrase reordering, which collectively improves the BLEU score significantly. To further understand the contribution of linguistic knowledge in LAR to phrase reordering, we introduce a syntax-based analysis method to automatically detect constituent movement in both reference and system translations, and summarize syntactic reordering patterns that are captured by reordering models. With the proposed analysis method, we conduct a comparative analysis that not only provides the insight into how linguistic knowledge affects phrase movement but also reveals new challenges in phrase reordering.

scholarly journals Synthesis and Characterization of Chromium Doped Zinc Sulfide Nanoparticles

OALib ◽  
2015 ◽  
Vol 02 (05) ◽  
pp. 1-8 ◽  
Author(s):  
Milind Bodke ◽  
Hari Khawal ◽  
Umesh Gawai ◽  
Babasaheb Dole
Keyword(s):  
Zinc Sulfide ◽  
Synthesis And Characterization ◽  
Zinc Sulfide Nanoparticles

scholarly journals Toxicity and Teratogenic Effects of Zinc Sulfide Nanoparticles on Chick Embryo and Chick Fibroblast Cell Culture

2019 ◽  
Vol 25 (4) ◽  
pp. 270-281
Author(s):  
Asadollah Asadi ◽  
◽  
Arash Abdolmaleki ◽  
◽  
Keyword(s):  
Cell Culture ◽  
Zinc Sulfide ◽  
Morphological Changes ◽  
Lethal Dose ◽  
Fibroblast Cell ◽  
Zns Nanoparticles ◽  
Culture Methods ◽  
Study Results ◽  
Zinc Sulfide Nanoparticles ◽  
Fibroblastic Cells

Aims Nanoparticles (particles with a diameter of 10-500 nm) are currently used in the cosmetics industry as well as for pharmaceuticals, diagnostic imaging, and tissue engineering. Since these nanoparticles are used in industry and drug delivery, they can also be used by pregnant women. Thus, the current study investigated the teratogenic and cytotoxic effects of Zinc Sulfide (ZnS) nanoparticles on the embryo and their fibroblastic cell culture. Methods & Materials Zinc sulfide (ZnS) nanoparticles were synthesized. Then, nanoparticles at the concentrations of 5, 10, 15, 30, and 40 mg/mL/egg were injected into the air sac of the eggs in three replicates on the third day of incubation. Next, the treated and control eggs, on day 19 of incubation were opened, and embryos were weighted, and the relevant mortality rate was recorded. Fibroblast cells were isolated, cultured, and treated from the control embryo, and morphological changes and cell survival percentages were recorded. Findings The obtained results revealed that the embryos’ survival rate depends on the nanoparticle concentration. As a result, at the highest concentration, only 36.32% of the embryos survived, and the lethal dose 50% (LD50) was equal to 32.47 mg/egg. Morphological study of the treated embryos club foot and skeletal staining suggested the deletion of caudal vertebrate. The cytotoxicity study results of ZnS nanoparticles on fibroblastic cells indicated the survival fractions of 88.45%, 68.75%, and 49.32%, respectively, and its IC50 value was measured aas1460 μM. Conclusion The present study results suggested that ZnS nanoparticles had no significant toxic effects on the embryos and culture of chicken fibroblastic cells at low concentrations.

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