• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.43
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• pp.25-52
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• 2009

An acceptance is effected by a statement or other conduct of the offeree indicating assent. Silence or inactivity does not in itself amount to acceptance. An acceptance of an offer becomes effective at the moment the indication of assent reaches the offeror. It uses in stating rules on whether an acceptance is too late to form a contract and an offeree may withdraw an acceptance after transmission. The offeree may indicate assent by performing an act such as one relating to the dispatch of the goods or payment of the price without notice to the offeror. The acceptance by action also is to be performed within the time fixed between the parties or within a resonable time. However, an oral offer must be accepted immediately by an offeree. After an acceptance by action, the offeree avoid revocation of an offer by giving the offeror prompt notice to that effect. Even if a reply an offer contains additions, limitations or other modifications is a rejection of the offer and constitutes a counter offer, the reply to an offer contains additional and different terms which do not materially alter the terms of the offer constitutes an acceptance unless the offeror objects to the discrepancy or to that effect. Additional or different terms relating to the price, payment, quality & quantity of the goods, time & place of delivery, a party's liability or the settlement of disputes are considered to materially alter the terms of the offer.

• Proceedings of the IEEK Conference
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• 1999.11a
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• pp.1067-1070
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• 1999

Anesthesia gas to pour to patients affects the flow and volume as the pressure difference of an oxygen and an anesthesia gas. An anesthesia gas, being injurious and polluting an environment, must control the pressure of an oxygen gas because of being used by closing up tight. But a pressure sensor to use for measuring an oxygen gas appears other pressure as the characteristic and the error difference of elements to use for implementing an system. A medical machine such as an anesthesia ventilator must be accurate because of using for the person's body. So we intend to implement an system for a sensor pressure measurement not to be change regardless of an environment. This papers is the target that a sensor pressrue measurement to be changed in environment is equal to actual sensor pressure measurement. So an implemented system is using analog filter and digital filter to reduce a noise. And we are using auto-zeroing and calibration to correct a sensor pressure which is changed in environment. Through such a process we increase the accuracy and the confidence of an anesthesia ventilator by controlling the flow of an anesthesia gas.

• Journal of Korean Institute of Industrial Engineers
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• v.20 no.2
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• pp.3-17
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• 1994

This paper presents an EMQ model which determines an optimal manufacturing lot size in an unreliable machine. The machine has an exponentially distributed life time, and requires a constant time to repair when it fails. We 1) derive an average cost function, 2) obtain an optimal lot size and show that it is unique, 3) carry out sensitivity analysis to examine the effect of machine parameters (life time, time to repair) to optimal lot size.

• Journal of the Ergonomics Society of Korea
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• v.9 no.1
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• pp.3-14
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• 1990

This article develops a cost-effective and accurate measurement system for heart best intervals. The system is composed of an analog to digital (A/D) converter, an IBM personal computer (an 8088 microprocessor, an 8253-5 timer, an 8259A interrupt controller, and memories) and assembler programs for controlling these hardware components. An exponential smoothing algorithm effectively reduced noise effects from A/D converted electrocardiogram (ECG) signals influenced by 60 Hz alternating current (AC). The system can collect 15000 heart beat intervals with an 1/5400 second unit.

• Journal of Korean Society of Water and Wastewater
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• v.24 no.6
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• pp.743-751
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• 2010

It requires an interim performance assessment for BTL business of the sewerage rehabilitation which continues from 2005 till now. Means, It is necessary to make an interim performance assessment and an analysis of an business effect of the sewerage rehabilitation BTL projects which still continues, and we presented an improvement method of the new sewerage rehabilitation project in future. This paper has conducted an analysis of the business effect for 3 local government BTL projects which are completed and under operation as of now in Jincheon-Gun, Cheongju-Si and Gangjin-Gun. As a method of business effect analysis, we conducted a business effect of the 3 places using the index set which we previously set for the business effect analysis. The index set in this research was sectionalized to an improvement effect of operating wastewater treatment plant, an benefit effect of the direct cost, an benefit effect of the indirect cost and an environment friendly effect. We, in this paper, conducted an business effect analysis for 3 sewerage rehabilitation BTL projects which are completed or under operation recently as a demonstration, however we judge that an business effect analysis shall be conducted in a stage that a significant time for operation has passed since the completion of the construction in order to induce an actual business effect of the sewerage rehabilitation BTL project.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.19 no.4
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• pp.251-258
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• 2016

Purpose: This study aimed to evaluate the utility of acanthosis nigricans (AN) severity as an index for predicting insulin resistance in obese children. Methods: The subjects comprised 74 obese pediatric patients who attended the Department of Pediatrics at Chosun University Hospital between January 2013 and March 2016. Waist circumference; body mass index; blood pressure; fasting glucose and fasting insulin levels; lipid profile; aspartate transaminase, alanine transaminase, glycated hemoglobin, C-peptide, and uric acid levels; and homeostatic model assessment insulin resistance (HOMA-IR) and quantitative insulin check sensitivity index (QUICKI) scores were compared between subjects with AN and those without AN. Receiver operating characteristic curves were used to investigate the utility of the AN score in predicting insulin resistance. HOMA-IR and QUICKI were compared according to AN severity. Results: The With AN group had higher fasting insulin levels ($24.1{\pm}21.0\;mU/L$ vs. $9.8{\pm}3.6\;mU/L$, p<0.001) and HOMA-IR score ($5.74{\pm}4.71$ vs. $2.14{\pm}0.86$, p<0.001) than the Without AN group. The AN score used to predict insulin resistance was 3 points or more (sensitivity 56.8%, specificity 83.9%). HOMA-IR scores increased with AN severity, from the Without AN group (mean, 2.15; 95% confidence interval [CI], 1.72-2.57) to the Mild AN (mean, 4.15; 95% CI, 3.04-5.25) and Severe AN groups (mean, 7.22; 95% CI, 5.08-9.35; p<0.001). Conclusion: Insulin resistance worsens with increasing AN severity, and patients with Severe AN (AN score ${\geq}3$) are at increased risk of insulin resistance.

• Animal cells and systems
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• v.12 no.3
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• pp.165-170
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• 2008

Cuticular hydrocarbons(CHCs) of the epicuticle wax layer are so far used to differentiate the insects in species and subspecies levels. In this study, four species of malaria vectors(genus Anopheles) were collected from various localities in southern Iran. Twenty specimens of each species were randomly selected and one epicuticular extract was prepared of every five specimens. FID-GC profiles of the extracts did not show any qualitative difference. Using significant difference of CHC mass at retention time(RT) 39.6, the two species of An. sacharovi and An. fluviatilis could be distinguished. Similarly, the two species of An. superpictus & An. sacharovi and An. dthali & An. sacharovi were differentiated by their CHC level at RT 28.5. An. sacharovi was distinguished by integratable peaks at RTs 29.7, 30.6, 30.7, 31 and 32.6 while the other three species just indicated trace peaks at the same RTs. Similarly, An. dthali could be known by an integratable peak at RT 26.2 while An. fluviatilis and An. superpictus indicated trace peaks at the same RT. Integratable peaks and traces at RTs 27.4 and 28.5 were respectively used to differentiate An. superpictus from An. fluviatilis. Lastly, CHC trace amount of An. superpictus at RT 39.6 is another indicator to distinguish it from An. fluviatilis with an integratable peak at the same RT. In harmony with other studies worldwide we hereby report that quantitative analysis of CHCs was successfully applied to differentiate the four Anopheles species of southern Iran.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2019.05a
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• pp.357-358
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• 2019

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2019.05a
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• pp.359-360
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• 2019

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2018.05a
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• pp.241-242
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• 2018