• Korean Chemical Engineering Research
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• v.53 no.6
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• pp.798-801
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• 2015

Nanomaterials (NMs) based on cadmium telluride (CdTe) are the theme of numerous research areas due to their unique chemical and physical properties. NM synthesis via a size-controlled procedure has become an intriguing research topic because NMs exhibit novel optical and physical properties depending on their size and shape. In this study, we prepared CdTe nanowires (NWs) via self-assembly from individual Nanoparticles (NPs). Thioglycolic acid (TGA)-to-Cd ion ratio of 1.3 was used instead of the traditional value of 2.4 and the reduced amount of stabilizer resulted in reorganization from individual NPs into NWs consisting of multi-layers of individual NPs. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) were performed to characterize NWs. The produced nanowires were straight and long in shape and their length ranged from 500 nm to tens of micrometers.

• Journal of the Korea Fashion and Costume Design Association
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• v.16 no.3
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• pp.179-189
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• 2014

Peplums have a great advantage in easy styling for wearers to acquire desired physical and reminiscent images depending on the type and where it is placed on the waist line. However, the study of peplum blouses has not yet recognized. This study suggests a baseline data for visual appraisals as a determined key factor is changes. The result of this study as follows: First, peplums published between 2012 through 2014 collections are used for decorative effects on tops or bottoms as the finest decoration details of fashioning women's physical attractiveness. Its application has been extended to various fashion themes such as belts and overskirt that are made of peplum itself. Second, peplums published between 2012 through 2014 collections have close correlation of how the position, shape, and length of peplums are attached on bottoms. Peplum effects are categorized as extension of tops, expansion of bottoms, connections of tops and bottoms, and separation of tops and bottoms. Third, total of seventy nine peplum blouses that are found in the domestic online shopping mall are analyzed. The total length of peplum blouses are generally produced to 56 to 61cm, which is little shorter than or approximately equal to the hip line of women aged in between twenty to twenty four. In addition, the most popular peplum design is made of flare and cutting lines on the waist line and is 45.56% of samples. The most common location of peplums is identified as 3 to 6 cm above the natural waist line or the natural waist line and is 78.47% of samples. Fourth, the key factor of peplum blouse that can significantly influence the visual image is the total length of blouse, position of peplum, and peplum shape.

• Journal of the Korean Society for Precision Engineering
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• v.29 no.3
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• pp.279-288
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• 2012

The material removal mechanism in machining is significantly affected by the cutting edge geometry. Its effect becomes even more substantial when the depth of cut is relatively small as compared to the characteristic length which represents the shape and size of the cutting edge. Conventionally, radius or focal length has been employed as the characteristic length with the assumption that the shape of cutting edge is round or parabolic. However, in reality, there could be various ways to determine the radius or focal length even for the same tool edge profile, depending on the region to be considered as cutting edge in the measured profile and the constraints to be set in constructing the best fitted circle or parabola. In this regard, the present study proposes various models to determine the characteristic length in terms of radius or focal length. Their physical compatibility are validated by carrying out 2D orthogonal cutting experiments using inserts with a wide range of characteristic length ($30{\sim}180\;{\mu}m$ in terms of radius) and then by investigating the correlation between the characteristic length and the cutting forces. Such validation is based on the common belief that the larger the characteristic length is, the blunter the cutting edge is and the higher the cutting forces are. Interestingly, the results showed that the correlation is higher for the radius or focal length obtained with a constraint that the center of best fitted circle or the focus of the best fitted parabola should be on the bisectional line of the wedge angle of tool.

• International Journal of Highway Engineering
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• v.19 no.6
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• pp.23-30
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• 2017

PURPOSES : In this paper, the applicability of DEM to a coarse graining method was evaluated by simulating a series of minicone tests for cement paste. METHODS : First, the fundamental physical quantities that are used in a static liquid bridge model were presented with three basic quantities based on the similarity principle and coarse graining method. Then, the scale factors and surface tensions for six different sizes of particles were determined using the relationship between the physical quantities and the basic quantities. Finally, the determined surface tensions and radii were utilized to simulate the fluidal behavior of cement paste under a minicone test condition, and the final shape of the cement paste with reference DEM particle radii was compared with the final shape of the others. RESULTS : The simulations with adjusted surface tensions for five different radii of particles and surface tension showed acceptable agreement with the simulation with regard to the reference size of the particle, although disagreement increases as the sizes of the particle radii increase. It seems reasonable to increase the particle radii by at least 0.196 cm considering the computational time reduction of 162 min. CONCLUSIONS : The coarse graining method based on the similarity principle is applicable for simulating the behavior of fluidal materials when the behavior of the materials can be described by a static liquid bridge model. However, the maximum particle radius should be suggested by considering not only the scale factor but also the relationship of the particle size and number with the radius of the curve of the boundary geometry.

• Journal of the Korean Society of Clothing and Textiles
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• v.31 no.1 s.160
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• pp.68-76
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• 2007

The purpose of this study is to investigate change of mechanical and physical properties, shape behavior and hand value in weft knit when rib stitch and milan stitch are combined. The knit stitches used in this study are plain stitch, half milan rib stitch, milan rib stitch, $2{\times}1$ rib stitch, $2{\times}1$ half milan rib stitch and $2{\times}1$ milan rib stitch. We analyzed physical and mechanical properties(tensile, bending, shear, compression, surface properties, thickness and weight) of the knit stitches and calculated their primary hand value and total hand value through translational formulas using the KES(Kawabata Evaluation System). The results are as follows; In evaluation of mechanical properties and hand values of knit stitches, plain stitch had the highest flexibility and the lowest T.H.V. as women's winter knit wear. Since $2{\times}1$ rib stitch had too high elongation in one direction, although it had the highest T.H.V, it needs to be careful when plain stitch and $2{\times}1$ rib stitch are applied for women's winter knit wear. Since Milan rib stitch and $2{\times}1$ milan rib stitch had high T.H.V. similarly, it is considered that they are suitable for women's winter knit wear. Specially, when Milan stitch is combined with $2{\times}1$ rib stitch, its shape stability and fullness are contained and flexibility is added on it. Therefore, $2{\times}1$ milan rib stitch can be also applied for women's winter knit wear.

• Journal of Internet of Things and Convergence
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• v.9 no.3
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• pp.7-12
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• 2023

One of the most important characteristics of digital forensics is integrity. Integrity means that the data has not been tampered with. If evidence is collected during digital forensic and later tampered with, it cannot be used as evidence. With analog evidence, it's easy to see if it's been tampered with, for example, by taking a picture of it. However, the data on the storage media, or digital evidence, is invisible, so it is difficult to tell if it has been tampered with. Therefore, hash values are used to prove that the evidence data has not been tampered with during the process of collecting evidence and submitting it to the court. The hash value is collected from the stored data during the evidence collection phase. However, due to the internal behavior of NAND flash memory, the physical data shape may change over time from the acquisition phase. In this paper, we study the characteristics and techniques of flash memory that can cause the physical shape of flash memory to change even if no intentional data corruption is attempted.

• Journal of Science of Art and Design
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• v.6
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• pp.140-202
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• 2004

Body means 1)the whole structure and substance of a man, animal, or plant 2) the trunk or torso of a man or animal 3) part of garment that covers the trunk 4) the fresh or material substance, as opposed to the spirit. Human body could be distinguished as fresh and spirit. Body has the meaning of physicality. Physical means the bodily and constitution, but in the meaning of constitution there is the content of spirituality. Physicality means the appearing or arising of trace or image or nuance of body. The paintings which are using bodies are 1) directly draw bodies 2) twisting or transformation or nuance of the body and highly upgrade the physical emotion or fantastic bodily nuance 3) directly rubbing artist's body on the surface of painting with pigments to elect tactile specification. These physical art have appeared broadly by various artists, mainly with the social aspects of sex, drug, psycho sexual issues. In case of Joel peter Whitkin, the reason of strong physicality in the art is from the mind of the rejection and resistance of real world which is targeting top, perfect and beauty. Further explanation, being the world which is separated top and under, men and women, beauty and ugly; further in the situation, the hierarchy, terror and pressure began and many difficult problems has derived. The contents of attacking feminists's art works are very obscene to reveal female and male's phallus strongly. Sometime, it is strongly related in the political issues. The physical paintings have strong meanings in the action by hands and feet. It supports that it could reveal the humanity with smell, breath, and traces of bodies. In the bodies, the origin of life begins which gives human life by blood lines and water. Sometime, the physical paintings are made by the blood and urine to stick the physicality for special nuance. The physical paintings are made by the image of penis and clitoris which are related in the image of urinating, ejaculation and sometime is symbolized as pens and candles to drop liquid. The selected painters who are related in physical painting are Jackson Pollock, Andrea Serano, Eve Klein, Francis Bacon, Francesco Clemente, Lichard Long, Jakes & Dinos Chapman, Anselm Kiefer, Kiki Smith and Park, Ki Woong. Francis Bacon's style is destructive in representing human shapes which give us special message about the unbearable activity of men politician, high brain, wealthy and religious people. Francesco Clemente's method is to use throat, ear hole, mouse, clitoris, belly nostrils and every holes of body to transmute human physical body. Lichard Long uses directly his body in drawing the surface of painting by using liquid of mud Jakes & Dinos Chapman destroys or transforms the bodies of human. It sometime appears wrong location of the bodies that the penis and vulva is in between human faces or nose of women, Anselm Kiefer uses human hair for representing the human decaying martyrs, and indirectly using straw, he gives special ritual action to repent the Nazi's fault. From 2002 to 2003, Park KI Woong used women womb images to intermingle the smoke shape of <9.11 terror, 2001> in New York to reveal the painful situation of the time(*).

• Physical Therapy Korea
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• v.13 no.3
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• pp.92-101
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• 2006

The purpose of this study was to investigate the characteristics and the current condition of musculoskeletal pain sufferers among fitness center users. The investigation used self-reporting questionnaire with the 797 subjects. On average, the subjects were 30.6 years old, 168.8 cm in height and 65.2 kg in weight. Among them, 423 were male (53.1%) and 374 were female (46.9%). Out of them, 276 suffered from pain, (35.2%). More men felt muscle aches than women (p<.05). In terms of pain, lower back area topped the list with 44.9%, followed by the lower extremities (30.1%), the neck (17.8%) and the upper part of the body (17.8%). Dieters suffered the most from pain (86.2%) while those exercising to build strength suffered the least with 26.8%. There was a significant relationship between the purpose for exercising and the amount of pain suffered (p<.05). By kind of exercise, pain stroke aerobic exercisers disproportionately with 42.4% while it almost steered clear of exercisers for strengthening with 26.9%. There was significant relationship between the kind of exercise and pain suffered (p<.05). The type of suffering differed by body shape. A significantly higher number of overweight people experienced pain than underweight people (p<.05). 32.8% of pain sufferers commented that the pain affects their workout, and on this issue there was no gender difference (p>.05). The pain caused more difficulties in doing activities of daily living for overweight or obese peoples than underweight peoples (p<.05). More than a third of health club and fitness center users are experiencing musculoskeletal pains. Measures such as professional training or information provision is required to prevent injury or disorder caused by improper exercise.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.28 no.7
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• pp.584-587
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• 2017

In this paper, the radar cross section of the integrated mast module for battleship is analyzed. The computation program based on physical optics and physical theory of diffraction is developed and the computed results are compared with those of commercial simulator to check the accuracy of computations. The radar cross section is calculated in terms of the mast shape, incident angle, and polarization. The radar cross section can be reduced through the change of the mast slope and the chamfered mast, which can be applied to a mast with a low radar cross section.

• Journal of Oriental Neuropsychiatry
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• v.19 no.2
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• pp.1-14
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• 2008

Objective : This study was designed for find corelation between behavior and physical symptoms in child. Physical symptoms appearing related with weak viscera are selected. And behaviors related to selected symptoms are compared that of children with character type defined by jung, c. G. Method: 497 children ( 3-11 years old ) who have visited two oriental clinic ( one is in Gang-Nam Gu Seoul (282 children), the other is in Joong-Rang Gu Seoul (215 children) ) from Jan. to Jul. 2006 were invested through the questionnaires, which were filled by their parents. These questionnaires have 61 yes-no type questions about behaviors on 12 situations, 36 yes no type questions about physical symptoms in 15 categories. 6 questions expected positive answer in child with weak spleen are categorized sp-q and 6 related weak lung, lu-q, 6 related weak kidney, ki-q. Numbers of positive answers in sp-q, lu-q and ki-q are counted so-index, lu-index and ki-index each. Corelation between behavior questions and 3 symptom indexes are measured and questions shown low significance level ( under 5% in pearson corelation, two-tailed ) are selected. Result: 15 behaviors related sp-index, 12 related lu-index, 12 related ki-index are selected and analysed. Conclusion : 1. Behaviors related sp-index is similar to that of Thinking Type children Grouped by jung, c. G.. 2. Behaviors related lu-index is similar to that of Sensation Type. 3. Behaviors related sp-index is similar to that of Feeling Type.