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        워필드 창조론 재고

        박찬호 ( Park¸ Chanho ) 한국개혁신학회 2021 한국개혁신학 Vol.71 No.-

        벤자민 워필드는 구 프린스턴 신학자 중 한 명이다. 그는 잘 알려진 유신론적 진화론자이다. 다윈주의에 정면으로 반대하는 찰스 핫지의 입장에 비해 워필드는 다윈의 진화론에 대해 보다 호의적이다. 그의 여러 저술은 진화를 긍정적으로 인정한다. 마크 놀과 리빙스턴은 워필드가 성경과 진화론의 권위 모두를 인정하는 대표자들 중 한 명이라고 주장한다. 그러나 최근 프레드 자스펠은 리빙스톤과 놀의 견해에 이의를 제기한다. 자스펠은 워필드가 진화라는 개념을 인정하고 있지만 진화론 자체를 받아들이지 않았다고 주장하고 있다. 진화론에 대한 워필드의 견해에 대한 이러한 대립을 해결하기 위해서는 복잡한 진화 개념을 명확히 해야 한다. 직접 창조, 간접 창조, 그리고 진화에 대한 워필드의 언급은 진화론에 대한 그의 견해를 밝혀줄 수 있을 것이다. 또한 유신론적 진화론에 대한 현대적인 비판에 워필드가 동조할 것 같은 표현들은 유신론적 진화론자로 워필드를 분류하지 못하게 하는 단서가 될 수 있을 것 같다. Benjamin B. Warfield is one of the Old Princeton theologians. He is a well-known theistic evolutionist. In comparison to the position of Charles Hodge who directly opposes to Darwinism, Warfield changes his attitude to Darwinian evolutionism. His several writings acknowledges evolution positively. Knoll and Livingstone contends that Warfield is one of the representatives who opts for both the authority of the Bible and evolutionism. Recently, however, Fred Zaspel raises an objection to the view of Livingstone and Knoll. Zaspel admits Warfield entertains the idea of evolution but does not accept the evolutionism itself. In order to solve this confrontation on Warfield’s view concerning evolutionism, we should make the complicated concept of evolution clear. Warfield’s references on direct creation, indirect creation and evolution might shed light on his view on evolutionism. Also, the expressions Warfield is likely to sympathize with modern criticism of theistic evolutionism could be a clue to preventing Warfield from being classified as a theistic evolutionist.

      • Shape-Adaptable 2D Titanium Carbide (MXene) Heater

        Park, Tae Hyun,Yu, Seunggun,Koo, Min,Kim, Hyerim,Kim, Eui Hyuk,Park, Jung-Eun,Ok, Byeori,Kim, Byeonggwan,Noh, Sung Hyun,Park, Chanho,Kim, Eunkyoung,Koo, Chong Min,Park, Cheolmin American Chemical Society 2019 ACS NANO Vol.13 No.6

        <P>Prior to the advent of the next-generation heater for wearable/on-body electronic devices, various properties are required, including conductivity, transparency, mechanical reliability, and conformability. Expansion to two-dimensional (2D) structure of metallic nanowires based on network- and mesh-type geometries has been widely exploited for realizing these heaters. However, the routes led to many drawbacks such as the low-density cross-bar linking, self-aggregation of wire, and high junction resistance. Although 2D carbon nanomaterials such as graphene and reduced graphene oxide (rGO) have shown their potentials for the purpose, CVD-grown graphene with sufficiently high conductivity was limited due to its poor processability for large-area applications, while rGO fabricated with a complex reduction process involving the use of toxic chemicals suffered from a low electrical conductivity. In this study, we demonstrate a simple and robust process, utilizing electrostatic assembling of negatively charged MXene flakes on a positively treated surface of substrate, for fabricating a metal-like 2D MXene thin film heater (TFH). Our TFH showed a high optical property (>65%), low sheet resistance (215 ?/sq), fast electrothermal response (within dozens of seconds) with an intrinsically high electrical conductivity, and mechanical flexibility (up to 180? bending). Its capability for forming a firm and stable ionic-type interface with a counterpart surface allows us to develop a shape-adaptable and patchable thread heater (TH) that can be shaped on diverse substrates even under harsh conditions of conventional sewing or weaving processes. This work suggests that our shape-adaptable MXene heaters are potentially suitable not only for wearable devices for local heating and defrosting but also for a variety of emerging applications of soft actuators and wearable/flexible healthcare monitoring and thermotherapy.</P> [FIG OMISSION]</BR>

      • Triboelectric nanogenerators with transfer-printed arrays of hierarchically dewetted microdroplets

        Park, Chanho,Yu, Seunggun,Cho, Suk Man,Song, Giyoung,Lee, Yujeong,Kang, Han Sol,Lee, Seung Won,Eoh, Hongkyu,Park, Cheolmin Elsevier 2018 Nano energy Vol.51 No.-

        <P><B>Abstract</B></P> <P>Triboelectric nanogenerators (TENG) is of great interest as an emerging power harvester due to its simple device architecture and high efficiency. Despite development of various surface modification techniques for enhancing the performance of a TENG with a given triboelectric pair of materials, a method capable of being used universally on a variety of surfaces and improving the performance of TENGs with diverse surfaces remains a challenge. Here, we demonstrate a novel transfer-printing technique of hierarchically dewetted polymer droplets on various TENG surfaces for performance enhancement of the TENGs. Our method is based on controlled dewetting of a thin supramolecular assembled film of two end-functionalized polymer blends on a prepatterned poly(dimethyl siloxane) mold, followed by the physical pattern-transfer of arrays of the dewetted droplets consisting of supramolecular assembled nanostructures on a TENG contact surface. The hierarchically dewetted microdroplets comprising soft-etched nanopores efficiently improve the performance of a TENG by more than three times compared to one without the transferred pattern. The pattern-transfer is successfully achieved on various surfaces including not only oxides, plastics, rubbers, and metals, but also fabrics, coins, vegetables, and shells, making our approach a convenient way for enhancing the triboelectric performance of a given TENG.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Transfer printing was used as a versatile tool to enhance contact area of a TENG. </LI> <LI> The performance of a TENG was improved by more than three times with the pattern. </LI> <LI> A variety of surfaces were suitable, including oxides, plastics, rubbers, and metals. </LI> <LI> Transfer printing well occurred on stretchable, bendable, and roughened substrates. </LI> <LI> The printing offers opportunities for broadening the choice of materials for TENGs. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

      • KCI등재SCOPUS
      • KCI등재

        A Comparison of Parametric and Nonparametric DIF Detection Methods

        Chanho Park(박찬호) 한국교육평가학회 2009 교육평가연구 Vol.22 No.4

        차별적 문항기능은 문항의 편파성을 찾아내려는 통계적 기법으로 연구되고 있다. 본 연구는 자료가 비모수적으로 생성되었을 때 우도비 검정과 같은 모수적 방법과 SIBTEST, Mantel-Haenszel 검사와 같은 비모수적 방법이 어떻게 작동하는 지 비교하였다. 모의실험에서는 수험자의 수와 능력의 분포가 달라질 때의 변화를 보았다. 제 1종 오류와 함께 차별적 기능 문항이 전체 문항에서 차지하는 비율이 달라질 때의 검증력 또한 조사했다. 그 결과 Mantel-Haenszel 방법이 제 1종 오류를 가장 잘 통제하였으나 SIBTEST의 결과 또한 유사했다. 우도비 검증법은 일부 조건에서 상당한 제 1종 오류의 증가를 보였다. 검증력에 있어서 역시 대체로 우도비 검증법의 결과가 비모수적 방법에 비해 좋지 않았다. 집단 내 피험자의 수가 증가함에 따라 모든 방법의 검증력은 좋아졌지만 집단의 크기가 커져도 모수적 방법이 비모수적 방법보다 나은 결과를 보이지는 못했다. 연구의 한계와 연구방향 또한 논의되었다. Differential item functioning (DIF) has been studied as a statistical method of finding possible item bias. The current study compared statistical performances of parametric—the Likelihood Ratio test (LR-test)—and nonparametric—SIBTEST and the Mantel-Haenszel test (MH-test)—DIF detection methods when datasets were nonparametrically simulated. Simulation factors included sample size and latent ability distribution. Type I error rates and the power of detecting DIF items with varying percentages of DIF items were investigated. The results showed that the MH-test controlled the type I error rate best across all conditions, followed closely by SIBTEST. The LR-test showed substantial inflation of type I error rates under some conditions. The LR-test's power of detecting DIF was inferior to that of the nonparametric methods. Although increasing sample size improved the performance of all methods, a large sample size did not guarantee the superiority of parametric methods. The limitations of this study and future directions were also discussed.

      • SCISCIESCOPUS

        Strategies for evaluating distributive mixing of multimodal Lagrangian particles with novel bimodal bin count variance

        Park, Chanho,Lee, Jiheon,Cho, Hyungtae,Kim, Youngjin,Cho, Sunghyun,Moon, Il Elsevier 2018 Powder technology Vol.325 No.-

        <P><B>Abstract</B></P> <P>The variance among bin counts is one of the most effective and convenient indices to quantify the degree of spatial distributive mixing. Although it is suitable for evaluating the spatial distribution of unimodal particles, many practical particle-mixing processes involve bimodal or multimodal particle systems. Herein, the variance among bimodal bin counts is introduced as a new mixing index to quantify the degree of distributive mixing of bimodal or multimodal particles. Four bimodal particle-mixing systems are assumed and analyzed to evaluate index performance: balanced versus imbalanced and fully versus partially distributed particle systems. As a result, we suggest practical usage and the most effective variation of variances among conventional bin counts and bimodal bin counts to quantify the four bimodal particle-mixing systems. Furthermore, variations of the method for evaluating multimodal mixing are proposed.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We proposed a new mixing index for quantifying the degree of mixing. </LI> <LI> The new index is the variance among bimodal bin counts. </LI> <LI> Four bimodal particle-mixing systems are assumed and analyzed. </LI> <LI> Variations of the method for evaluating multimodal mixing are also proposed. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

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