• Journal of Bio-Environment Control
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• v.16 no.4
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• pp.275-283
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• 2007

This study was carried out to: (1) analyze structural stability of representative rain-sheltering greenhouses for large-grain grapevine cultivation with widths of 3.6 m and 5 m in case of using the existing pipe for agriculture; (2) present the optimum specification of pipes in the greenhouse with a width of 5 m under the condition of using the pipe of which ultimate strength has been above $400N{\cdot}mm^{-2}$; (3) evaluate stability and also present the optimum specification of pipes as eaves height was augmented. The above analyses were done for greenhouses with roof vents and also with a main-column interval of 3 m and a rafter interval of 60 cm. First, the existing 3.6 m greenhouse with a rafter of ${\Phi}25.4{\times}1.5t@600$ was stable far a snow-depth of 35 cm but unstable for a wind velocity of $35m{\cdot}s^{-1}$. Meanwhile the existing 5 m greenhouse with the same rafter was not stable for a wind velocity of $335m{\cdot}s^{-1}$ as well as a snow-depth of 35 cm. This meant that existing greenhouses had to be reinforced to secure stability. Second, the specification of pipes, especially rafter, could be classified as two cases. One had a structural stability at a safe wind velocity of $35m{\cdot}s^{-1}$ and a safe snow-depth of 40 cm for which stability the rafter had to be ${\Phi}31.8{\times}1.5t@600$, and the other had a stability at $30m{\cdot}s^{-1}-35cm$ at the specification of rafter ${\Phi}25.4{\times}1.5t@600$. Finally, eaves height had a significant effect on safe wind velocity. But it had little influence on safe snow-depth. The results showed that the specification of side-wall pipes had to be reinforced for the safe side velocity accord-ing to the increment of eaves height and similarly the specification of fore-end post far the safe fore-end velocity.

• Fisheries and Aquatic Sciences
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• v.5 no.1
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• pp.48-53
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• 2002

The HACCP (hazard analysis critical control point) concept becomes an important aspect of Good Manufacturing Practices (GMP) in safe food production. The HACCP plan was developed with food safety objective. The authors already carried out hazards analysis on Changran Jeotgal manufacturing process in a previous report. In this study we developed a HACCP plan on the manufacturing process of Changran Jeotgal. We could decide two CCPs those were salt concentration and eliminations of foreign materials before packaging. Foreign materials should be certainly checked out with laser detector just before packaging. Salt should be maintained more than $8\%$ to inhibit pathogenic bacteria in end product. On the Jeotgal process free water is removed after salting and Jeotgal is seasoned with several subsidiary materials such as com syrup. In result end products have $8\%$ salt with water activity 0.82. Most bacteria are inhibited but some can live in this condition. Materials on the working may be contaminate by pathogens, chemicals or physical hazards. It will be decreased by SSOP (standard sanitary operating program). The SSOP needed in Jeotgal plants is nearly same as other general food manufacturing plants but essential to fulfill HACCP program.

• Journal of Chest Surgery
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• v.28 no.11
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• pp.1025-1031
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• 1995

Thirty patients who underwent esophageal resections due to esophageal carcinoma and benign strictures, and esophagovisceral anastomoses were performed by hand suture in 11 patients[Group I and by using the end to end anastomosis[EEA stapler in 19 patients[Group II . Anastomoses were performed in the thoracic cavity in 24 patients[Right 19, Left 5 and in the cervical area in 6 patients. There was one operative mortality[3.3% in a cancer patient who underwent Ivor-Lewis operation using EEA stapler. She expired on POD 38 days due to renal failure and sepsis. There were two anastomotic leakage in the sutured group and no anastomotic leakage in the stapled group. Late anastomotic strictures occurred in 10 patients[52.6% in the stapled group compared to 2 patients[18.1% in the sutured group. Most of the patients with late anastomotic strictures responded to one or two trials of TTS dilations. Using EEA stapler in performing esophagovisceral anastomosis is a safe method with acceptable range of complication rate, and total admission period after the operation for group I was 30.3 days compared to 25.4 days in group II although it had no clinical significance. The follow up was possible in 23 patients; 5 patients in group I died within mean 12.6 months and 9 patients in group II within mean 14.2 months.

• Journal of Korean Foot and Ankle Society
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• v.12 no.1
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• pp.86-92
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• 2008

Purpose: To evaluate the safety and prognostic factors of intramedullary nailing of distal tibia fractures in terms of function and symptoms of the ankle joint. Materials and Methods: We retrospectively analyzed 22 distal tibial fractures with intramedullary nailing. The mean duration of follow-up was 43 months. We reviewed medical records to describe each case. We measured radiographic parameters such as fracture configuration, arthritic change of the ankle joint and status of reduction. We also assessed clinical results by AOFAS ankle hind foot scoring system, degree of pain by VAS and range of motion to find out prognostic factors for functional result of the ankle joint. Results: Bone healing was obtained in all cases without any wound complications. Mean AOFAS ankle score was 94. There were 4 cases with mild (VAS<3/10) ankle pain and 2 cases with mild limitation of ankle motion. The comminution of fracture had a significant relationship with delayed angular deformity of ankle joint (p=0.032). There was no other significant parameter affecting ankle joint function except the location of nail-end. Conclusion: Intramedullary nailing in distal tibia fracture is a safe and effective procedure. But further study may need to evaluate the relationship between the position of nail-end and the function of ankle joint.

• Journal of Physiology & Pathology in Korean Medicine
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• v.27 no.2
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• pp.268-272
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• 2013

This study is designed as pilot study to report the efficacy and safety of long term medication of Oncheongeum-gamibang on atopic dermatitis. The patient of atopic dermatitis was asked to take Oncheongeum-gamibang for 3 months. Every end of month, he had gotten hematological test and SCORAD Index examination. After the clinical trial was done, he had additional examination to see the changes and duration of medicinal effect. During the period of taking Onchung-um, estimation of symptoms by SCORAD Index examination showed little bit of improvement while taking medicine and after one month, the improvement was maintained. There were no significant changes in hematologic test and liver function test during and at the end of the clinical trial. We were able to find out that it is effective and safe to take long term medication of Oncheongeum-gamibang for an individual. However, due to deficiency of the cases and immunological values, there will be additional study to make up for better result.

• Journal of Chest Surgery
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• v.17 no.4
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• pp.620-624
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• 1984

The optimal surgical management of the coarctation of the aorta associated with ventricular septal defect is still debated. Sixteen patients with the coarctation of the aorta and VSD were operated upon between November, 1980 and September 1984 at Seoul National University Hospital. They were 11 males and 5 females. All presented between 5 months and 11.5 years of age [mean= 5.5 years]. Presenting symptoms were congestive heart failure in 11 [69%], cyanosis on crying in 3 [19%], and frequent upper respiratory infection in 2 [13%]. In all cases two-stage operation was applied except one in which one stage procedure was taken. Resection and end-to-end anastomosis was used in 3, Dacron graft in 5, Gortex graft in 1, and left subclavian flap angioplasty in 4. Remaining two were missed on the operating table before correction of the coarctation of the aorta. Overall operative death in repair of the coarctation of the aorta were 3[20%]. Among the 12 survivors after repair of the coarctation of the aorta, 4 required patch closure of VSD, 2 required primary closure, 2 showed spontaneous closure [17%], one [8%] showed decrease in its size, 3 were under observation. It might be safe to approach the coarctation of aorta plus VSD with initial repair of the coarctation of the aorta without banding of main pulmonary artery and later management of VSD as usual manner in simple VSD.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.3
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• pp.1330-1347
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• 2018

Mobile Ad hoc Network (MANET) is a collection of nodes or communication devices that wish to communicate without any fixed infrastructure and predetermined organization of available links. The effort has been made by proposing a scheme to overcome the critical security issue in MANET. The insufficiency of security considerations in the design of Ad hoc On-Demand Distance Vector protocol makes it vulnerable to the threats of collaborative black hole attacks, where hacker nodes attack the data packets and drop them instead of forwarding. To secure mobile ad hoc networks from collaborative black hole attacks, we implement our scheme and considered sensor's energy as a key feature with a better packet delivery ratio, less delay time and high throughput. The proposed scheme has offered an improved solution to diminish collaborative black hole attacks with high performance and benchmark results as compared to the existing schemes EDRIAODV and DRIAODV respectively. This paper has shown that throughput and packet delivery ratio increase while the end to end delay decreases as compared to existing schemes. It also reduces the overall energy consumption and network traffic by maintaining accuracy and high detection rate which is more safe and reliable for future work.

• Journal of Communications and Networks
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• v.13 no.2
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• pp.187-200
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• 2011

We present the design and implementation of a novel anti-malware system called SplitScreen. SplitScreen performs an additional screening step prior to the signature matching phase found in existing approaches. The screening step filters out most non-infected files (90%) and also identifiesmalware signatures that are not of interest (99%). The screening step significantly improves end-to-end performance because safe files are quickly identified and are not processed further, and malware files can subsequently be scanned using only the signatures that are necessary. Our approach naturally leads to a network-based anti-malware solution in which clients only receive signatures they needed, not every malware signature ever created as with current approaches. We have implemented SplitScreen as an extension to ClamAV, the most popular open source anti-malware software. For the current number of signatures, our implementation is $2{\times}$ faster and requires $2{\times}$ less memory than the original ClamAV. These gaps widen as the number of signatures grows.

• Journal of Marine Bioscience and Biotechnology
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• v.14 no.1
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• pp.43-50
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• 2022

Squid is a sustainable source of long-chain omega 3 fatty acids. This study aims to assess the safety and triglyceride-lowering efficacy of refined oil derived from the squid(Todarodes pacificus) viscera. Male and female participants with elevated fasting serum lipids (i.e., total cholesterol of ≥5.2 mmol/L or fasting serum triglyceride of ≥1.65 mmol/L) were randomly allocated to the control (n = 52) or squid oil group (n = 52), and participants in the latter group were instructed to consume 3 g of squid oil daily for 60 days. None of the subjects reported adverse events associated with the consumption of squid oil. Baseline clinical chemistry and hematological parameter values and those toward the end of the treatment period were similar, and all values were within the normal range. Fasting cholesterol and triglyceride levels in the control and squid oil groups were similar; however, toward the end of the 60 day study period, these levels significantly reduced in the squid oil group relative to those in the control group (P< 0.01). However, high-density lipoprotein-cholesterol remained unchanged in both groups. Thus, it can be inferred that squid oil is a safe source of long-chain omega-3 fatty acids and has beneficial effects on the blood lipid levels. This is the first clinical study on squid oil usage, and suggests that it could be a sustainable source of omega 3 fatty acids.

• International Journal of Computer Science & Network Security
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• v.23 no.6
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• pp.169-175
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• 2023

Ethical hackers are using different tools and techniques to encounter malicious cyber-attacks generated by bad hackers. During the software development process, development teams typically bypass or ignore the security parameters of the software. Whereas, with the advent of online web-based software, security is an essential part of the software development process for implementing secure software. Security features cannot be added as additional at the end of the software deployment process, but they need to be paid attention throughout the SDLC. In that view, this paper presents a new, Ethical Hacking - Software Development Life Cycle (EH-SDLC) introducing ethical hacking processes and phases to be followed during the SDLC. Adopting these techniques in SDLC ensures that consumers find the end-product safe, secure and stable. Having a team of penetration testers as part of the SDLC process will help you avoid incurring unnecessary costs that come up after the data breach. This research work aims to discuss different operating systems and tools in order to facilitate the secure execution of the penetration tests during SDLC. Thus, it helps to improve the confidentiality, integrity, and availability of the software products.