Journal of Fisheries and Marine Sciences Education
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v.14
no.1
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pp.95-114
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2002
The purpose of this study was to examined the relationships between the narcissism and the self-esteem, the hostility. In order to accomplish the above purpose, empirical research has executed. First, the narcissism, the self-esteem and the hostility was analyzed, and the subfactors of narcissism, the self-esteem and the hostility was. The major results from this study were as follows. (1) The narcissism had significantly a positive correlation to the self-esteem and the hostility, and both of the self-esteem and the hostility influenced of significantly the narcissism, especially the hostility influenced of the narcissism even more importantly. (2) The more narcissism showed the higher self-esteem overtly and the more hostility. (3) The all subfactors to except the self-centeredness of the narcissism had a positive correlation to the self-esteem, and the all subfactors of narcissism had a positive correlation to the hostility. (4) The most important narcissism personality traits which influenced of the self-esteem was the superiority, and the hostility the self-centeredness. Narcissists are motivated by the preference for being superior to others. That is, narcissists have an extreme emotional investment in establishing their superiority, even if they are unsure that their superiority is merited. therefore, it is possible for narcissists to have high self-esteem. But this is to defence the fragility of the vulnerable self structure. And, narcissists feel very much a sense of hostility in psychologically. Because they are hyper-sensitive to negative information, they will be more likely to encounter information or situations that challenge their positive self-appraisals. In response to these challenges, or ego threats, they will likely experience negative emotion, such as hostility.
A Bayesian nonstationary probability rainfall estimation model using the Grid method is developed. A hierarchical Bayesian framework is consisted with prior and hyper-prior distributions associated with parameters of the Gumbel distribution which is selected for rainfall extreme data. In this study, the Grid method is adopted instead of the Matropolis Hastings algorithm for random number generation since it has advantage that it can provide a thorough sampling of parameter space. This method is good for situations where the best-fit parameter values are not easily inferred a priori, and where there is a high probability of false minima. The developed model was applied to estimated target year probability rainfall using hourly rainfall data of Seoul station from 1973 to 2012. Results demonstrated that the target year estimate using nonstationary assumption is about 5~8% larger than the estimate using stationary assumption.
Journal of the Korea Institute of Military Science and Technology
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v.25
no.1
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pp.9-22
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2022
A fighter performing a reconnaissance mission is equipped with a pod that drives optical/infrared sensors for acquiring and identifying target information on the lower part of the fuselage. Due to the nature of the reconnaissance mission, the fighter performs high speed evasive maneuvers, and the resulting load should be considered importantly for the development of the pod. This paper concerns a numerical investigation into the inertial and aerodynamic loads of the airborne pod of high performance aircrafts. For the aerodynamic load analysis, the pylon and pod shapes are added to the fighter 3D model, and the commercial software was used for static and dynamic analysis. Considering the practical mission conditions, the common/extreme conditions were established respectively in the static and dynamic situations of pods and the driving torque could be tripled under dynamic conditions. In the analysis of inertia load, a 3-DOF model considering roll and turning maneuvers was derived by the Lagrangian method, and then the numerical integration method was applied to the analysis. As a results, it was conformed that the inertia load was generally induced at a low level compared to the aerodynamic load, but depending on the unbalance mass condition of the pod, the inertia load cannot be negligible.
Kwangsik Jang;Eun Joo Jang;Yo Han Min;Kyung Mi Shim;Chunsik Bae;Seong Soo Kang;Se Eun Kim
Journal of Veterinary Clinics
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v.40
no.4
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pp.268-275
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2023
In this paper, we designed 3D-printed orthopedic splint models for patient-specific external coaptation on fracture healing and analyzed the stability of the models through finite element method (FEM) analysis under compressive load conditions. Polylactic acid (PLA) and acrylonitrile-butadiene-styrene (ABS) based 3D splint models of the thicknesses 1, 3, 5 and 7 mm were designed, and Peak von Mises stress (PVMS) and maximum displacement (MD) of the models were analyzed by FEM under compressive loads of 50, 100, 150, and 200 N. The FEM results indicated that PVMS and MD values, regardless of material, had a negative correlation with the thickness of the models and a positive correlation with the compressive load. There was a risk of splint deformation under conditions more extreme than 100 N with 5 mm thickness. For successful clinical application of 3D-printed orthopedic splints in veterinary medicine, it is recommended that the splint should be produced not less than 5 mm thickness. Also, it is expected to be stable when the splint is applied to situations with a compressive load of 100 N or less. There is an advantage of overcoming the limitations of the existing bandage method through 3D-printing technology as well as verifying the stability through 3D modeling before application. Such 3D printing technology will be widely used in veterinary medicine and various fields as well as orthopedics.
This text is an attempt to understand the psychological meaning of panic attacks occurring in the young people in their early twenties who play music. A panic attack is a type of anxiety neurosis known to occur primarily in their twenties and is characterized by extreme fear and terror accompanied by various symptoms in the autonomic nervous system. Situations with occurring panic attacks were examined in three cases combined with panic attacks and mood swings, suicidal ideation, and self-mutilating behaviors, and the psychological meaning of panic attacks was reviewed for each case. In the first case, panic attacks make one think or reflect with consciousness for someone who wants to remain unconscious. In the second case, for one who hesitates to move forward in life and finds oneself in conflict, panic attacks open the inner mind and allow one to come in touch with one's deeper mind, thereby opening possibilities to transcend the conflict. In the third case, one experience the instinct and impulse of desiring to realize the unconsciousness as panic attacks and thereafter consciously realize the impulse as well. Their panic attacks, which all seem to have different meanings, are likely a powerful approach of the unconsciousness to urge a renewal from the consciousness level of the youth period.
The mechanical properties and durability of concrete pavements may be degraded in extreme situations, resulting in the need for partial repair or total replacement. During the past few decades, there has been a growing body of research on substituting a portion of Portland cement with alternative cementitious materials for improving concrete properties. In this study, two different configurations of powdered and granulated blast furnace slag were implemented, replacing fine aggregates (by 12 wt.%) and Portland cement (by 0, 20, 40, and 60 wt.%) in the making of roller-compacted concrete (RCC) mixes. The specimens were fabricated to investigate the mechanical properties and durability specifications, involving freeze-thaw, salt-scaling, and water absorption resistance. The experimental results indicated that the optimum mechanical properties of RCC mixes could be achieved when 20-40 wt.% of powdered slag was added to concrete mixes containing slag aggregates. Accordingly, the increases in compressive, tensile, and flexural strengths were 45, 50, and 28%, in comparison to the control specimen at the age of 90 days. Also, incorporating 60 wt.% of powdered slag gave rise to the optimum mix plan in terms of freeze-thaw resistance such that a negligible strength degradation was experienced after 300 cycles. In addition, the optimal moisture content of the proposed RCC mixtures was measured to be in the range of 5 to 6.56%. Furthermore, the partial addition of granulated slag was found to be more advantageous than using entirely natural sand in the improvement of the mechanical and durability characteristics of all mixture plans.
This study is on the changing pattern of fish-and-shellfish uses during the last two thirds of Chosun period on the premise that they are influenced by development of fishing technology. With a literary approach, this paper researches how fish-and-shellfish production and consumption pattern changed, especially in relation to technological development of fisheries. First, we examine into the changes of fishery production. And next, we analyze the kind and cooking method of fish-and-shellfish in [Eum-sik-di-mi-bang](1670) and [Gyu-hap-chong-seo](1815). The analysis of two books revealed that there were significant differences in fish-and-shellfish uses. Because the two books were written with a gap of 145 years and the development of fishing technology and remarkable changes of fishery production affected on the fish-and-shellfish uses. Due to primitive fishing tools and skills, fresh-water and reverse-river-fish and shellfish had been caught in substantial amount until the middle ages of Chosun period. As a result, the availability of seafood were limited extremely even in the upper classes. These situations are evidenced by the analysis of [Eum-sik-di-mi-bang]. Only 12 kinds of fish-and-shellfish are described in [Eum-sik-di-mi-bang]. Most of the sesfoods is mollusc which is easy to catch. As for the salt-water fish, dried cod and dried herring were mentioned. Mullet, the reverse-water-fish, is used most frequently. Only one kind of 'Hoe', which needs extreme freshness, is described. This means that the use of fresh fish-and-shellfish was very limited to some kinds which could be caught near the village. As the netting fishery began to be developed in the 18th century, the production of some salt-water fishes, such as anchovy, shrimp, yellow corvina, pollack, and herring, had increased remarkably to make marine resources more available. Small fish, such as anchovy and shrimp were preserved as 'Jeot-gal' and sold nationwide. Therefore, 'Jeot-gal' and seafood could be used in Kimchi around this time and had a deep influence on the change of Kimchi in taste and nutrition. In [Gyu-hap-chong-seo], 33 kinds of fish-and-shellfish are described. Including cod and herring, 17 kinds of sea water fish and mollusc are mentioned. Some of these are consumed in fresh state, neither as dried nor as salted. Because the merchants promoted the transport of seafoods to other regions according to the growth of commercial economy. As a result the diet of the people could be enriched by the various seafoods.
KSCE Journal of Civil and Environmental Engineering Research
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v.33
no.5
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pp.1797-1807
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2013
Dams always have the possibility of failure due to unexpected natural phenomena. In particular, dam failure can cause huge damage including damage for humans and properties when dam downstream regions are densely populated or have important national facilities. Although many studies have been conducted on the analysis of flood waves about single dam failure thus far, studies on the analysis of flood waves about the sequential failure of dams are lacking. Therefore, the purpose of this study was to calculate the peak discharge of sequential failure of dams through flood wave analysis of sequential failure of dams and this analysis techniques to predict flood wave propagation situation in downstream regions. To this end, failure flood wave analysis were conducted for Lawn Lake Dam which is a case of sequential failure of dams among actual failure cases using DAMBRK to test the suitability of the dam failure flood wave analysis model. Based on the results, flood wave analysis of sequential failure of dams were conducted for A dam in Korea assuming a virtual extreme flood to predict flood wave propagation situations and 2-dimensional flood wave analysis were conducted for major flooding points. Then, the 1, 2-dimensional flood wave analysis were compared and analyzed. The results showed goodness-of-fit values exceeding 90% and thus the accuracy of the 1-dimensional sequential failure of dams simulation could be identified. The results of this study are considered to be able to contribute to the provision of basic data for the establishment of disaster prevention measures for rivers related to sequential failure of dams.
A social phobia is an anxiety disorder characterized by extreme fear and phobic avoidance of social and performance situations. Medications or cognitive-behavior methods have been mainly used in treating it. These methods have some shortcomings such as being inefficient and difficult to apply to treatment. Lately the virtual rcality technology has been applied to dcal with the anxiety disorders in order to compcnsate for these defects. A virtual environment provides a patient with stimuli which cvokes a phobia. and the patient's exposure to the virtual phobic situation make him be able to overcome it. In this study, we suggested the public speaking simulator based on a personal computer for the treatment of social phobia. The public speaking simulator was composed of a position sensor. head mount display and audio system. And a virtual environment for the treatment was suggested to be a seminar room where 8 avatars are sitting. The virtual environment includes a tracking system the trace a participant's head-movement using a HMD with position sensor and 3D sound is added to the virtual environment so that he might fcel it realistic. We also made avatars' motion and facial expression change in reaction to a participant's speech. The goal of developing public speaking simulator is to apply to treat fear of public speaking efficiently and economically. In a future study. we should get more information about immergence and treatment efficiency by clinical test and apply it to this simulator.
In order to concludes that human being is in the making, not a being already perfectly made, this paper goes through four steps. The first step raises a question that human being is only a being of reason. The Kant's assertion that human being has a moral capacity of 'good will' seems to be distorted portrait of human being. The second step calls into a question that human being can obey universal moral laws. Any universal moral law can't be obeyed by moral agent, because he can't exclude his external situations which are ceaselessly changing. Nevertheless imperatives of reason which require to obey the universal moral laws seems to be a 'unfortunate legacy' to human being. The third step demonstrates that imperatives of reason are originated from dualism which have dichotomize "mind vs. body" as "internal capacity vs. external situation". According to dualism, imperatives of reason require internal capacity to exclude emotions or desires which are sensitive to external influences. The fourth step discusses that interacting of inner and outer is to be necessary for human being. Then, reason is to be really in one glove with emotions which are beginning form externals, otherwise reason can't stop being powerless to any external situation. Concludingly any human being is to be processing to a new being, not situating any extreme antagonism of "reason vs. emotion". Because of emotional human animal, not a perfect god, humans being is in the ceaseless process into the making a new self.
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