본 연구는 급변하는 시대에 부응하는 개인의 창의성 발휘 양상을 탐색 하는 데 그 목적이 있다. 이를 위해 TV 예능 PD로서 많은 히트작을 냈 고 최근에는 유튜브 ‘채널 십오야’로 글로벌한 인기를 끌면서 ‘제60회 백 상예술대상’ 남자 예능상을 수상한 나영석PD를 대상으로 연구를 진행하 고자 한다. 본 연구의 수행을 위해 2024년 9월 중에 네이버와 구글에서 ‘나영석피디’, ‘나영석피디 인터뷰’와 같은 키워드로 본 연구의 주제와 관 련되는 내용들을 전수 조사하여 도출된 내용을 검토하였다. 연구 결과, 크게 예능 제작 철학과 창의적인 접근법, 변화하는 콘텐츠 환경에 대한 통찰과 성장 전략이 도출되었고 주제별로 세부 항목이 제시되었다. 이를 통해 일에서 창의성을 발휘하고 활동 영역을 확장해 나가는 사례와 방법 을 구체적으로 확인할 수 있었다. 본 연구의 내용을 토대로 변화무쌍한 시대에 능동적이고 유연하게 일을 하고 다변화해 나가는 창의적인 개인 의 사례를 확인할 수 있을 것이다. 그리고 이것은 TV 예능과 유튜브라 는 플랫폼뿐만 아니라 현 시대에 어느 분야에서든지 적용 가능한 일의 관점과 태도로서 주목할 수 있을 것이다.

Na4MnV(PO4)3 (NMVP) cathode materials have attracted significant attention as potential candidates for grid applications due to their distinctive structure and high theoretical capacity. However, their inadequate electronic conductivity compromises both cycling stability and rate capability, presenting a challenge for practical implementation. To address this issue, we employed a strategy involving Zr4+ doping and dual-carbon coating to enhance the electrochemical performance of NMVP. The resulting Na3.8MnV0.8Zr0.2( PO4)3/C/rGO composite demonstrated markedly improved rate capability (71.9 mAh g− 1 at 60 °C) and sustained cyclic stability (84.8% retention at 2 C after 1000 cycles), as validated through comprehensive kinetics assessments. The enhanced performance can be attributed to the expanded Na-ion pathways facilitated by large size ion doping and the improved electronic conductivity enabled by the dual-layer coating.

Technetium has been identified as an element of interest for the safety assessment of a deep geological repository for used nuclear fuel. In this study, the sorption of Tc(IV) onto MX-80 bentonite, illite, and shale in ionic strength (I) 0.1–6 mol·kgw−1 (m) Na-Ca-Cl solutions at pHm = 4–9 and limestone at pHm = 5–9 was studied. Tc(IV) sorption on MX-80 increased with pHm from 4 to 6, reached the maximum at pHm = 6–7, and then gradually decreased with pHm from 7 to 9. Tc(IV) sorption on illite gradually increased with pHm from 4 to 7, and then decreased as pHm increased. The sorption properties of Tc(IV) on shale were quite similar to those on illite. Tc(IV) sorption on limestone slightly increased with pHm from 5 to 6 and then seemed to be constant at pHm = 6–9. Tc(IV) sorption on all four solids was independent of ionic strength (0.1–6 m). The 2 site protolysis non-electrostatic surface complexation and cation exchange model successfully simulated the sorption of Tc(IV) onto MX-80 and illite and the optimized values of surface complexation constants were estimated.

Technetium-99 is identified as an element of interest for the safety assessment of a deep geological repository for used nuclear fuel. The sorption behavior of Tc(IV) onto MX-80 and granite in Ca-Na-Cl solutions of varying ionic strength (0.05–1 mol·kgw−1 (m)) and across a pHm range of 4–9 was studied in this paper. Sorption of Tc(IV) was found to be independent of ionic strength in the range of 0.05 to 1 m for both MX-80 and granite. Sorption of Tc(IV) on MX-80 increased with pHm from 4 to 7 and then decreased with pHm from 8 to 9. Sorption of Tc(IV) on granite gradually increased with pHm from 4 to 8 and then became almost constant or slightly decreased with pHm from 8 to 9. A 2 site protolysis non-electrostatic surface complexation and cation exchange sorption model successfully simulated sorption of Tc(IV) on MX-80 and granite. Optimized values of surface complexation constants (log K0) are proposed.

이 논문에서는 『대승기신론』의 ‘일심이문’과 ‘5문’을 중심으로 해서 수 행자의 깨달음과 범부의 행복의 관계에 대해 살펴본다. 한국불교를 돌이 켜볼 때 수행자가 깨달음을 얻었다고 할지라도, 그것이 범부의 행복으로 이어지는 경우가 많지 않은 것으로 보인다. 이런 문제의식에서 이 논문은 출발한다. 『대승기신론』의 ‘심진여문’의 관점에서 보면(2장), 부처와 범부 를 포함한 중생은 본래부터 평등하다. 따라서 수행자의 깨달음과 범부의 행복의 관계를 논할 필요조차 없다. 부처의 눈으로 보면, 범부도 이미 부 처이다. 그렇지만 『대승기신론』의 ‘심생멸문’의 관점에서 보면(3장), 부처 와 중생은 엄연히 다르고, 따라서 중생이 수행을 해서 부처가 되는 길이 존재한다. 『대승기신론』에서는 이것을 4단계로 설명한다. 그리고 『대승기 신론』에서는 실천론으로 5문, 곧 보시・지계・인욕・정진・지관(止觀)을 제시하는데, 여기서는 깨달음을 완성한 수행자가 5문의 실천을 통해 범 부의 행복을 늘리는 것에 대해 알아본다(4장). 구체적으로 말하자면, 5문 가운데 보시와 정진과 관(觀)이 범부의 행복에 직접적 영향을 미친다고 할 수 있다.

In this study, we investigated the microstructure and piezoelectric properties of 0.96(K0.456Na0.536)Nb0.95Sb0.05-0.04 Bi0.5(Na0.82K0.18)0.5ZrO3 (KNNS-BNKZ) ceramics based on one-step and two-step sintering processes. One-step sintering led to significant abnormal grain (AG) growth at temperatures above 1,085 °C. With increasing sintering temperature, piezoelectric and dielectric properties were enhanced, resulting in a high d33 = 506 pC/N for one-step specimen sintered at 1,100 °C (one-step 1,100 °C specimen). However, for one-step 1,115 °C specimen, a slight decrease in d33 was observed, emphasizing the importance of a high tetragonal (T) phase fraction for superior piezoelectric properties. Achieving a relative density above 84 % for samples sintered by the one-step sintering process was challenging. Conversely, two-step sintering significantly improved the relative density of KNNS-BNKZ ceramics up to 96 %, attributed to the control of AG nucleation in the first step and grain growth rate control in the second step. The quantity of AG nucleation was affected by the duration of the first step, determining the final microstructure. Despite having a lower T phase fraction than that of the one-step 1,100 °C specimen, the two-step specimen exhibited higher piezoelectric coefficients (d33 = 574 pC/N and kp = 0.5) than those of the one-step 1,100 °C specimen due to its higher relative density. Performance evaluation of magnetoelectric composite devices composed of one-step and twostep specimens showed that despite having a higher g33, the magnetoelectric composite with the one-step 1,100 °C specimen exhibited the lowest magnetoelectric voltage coefficient, due to its lowest kp. This study highlights the essential role of phase fraction and relative density in enhancing the performance of piezoelectric materials and devices, showcasing the effectiveness of the two-step sintering process for controlling the microstructure of ceramic materials containing volatile elements.

A carbon matrix for high-capacity Li/Na/K-alloy-based anode materials is required because it can effectively accommodate the variation in the volume of Li/Na/K-alloy-based anode materials during cycling. Herein, a nanostructured porous polyhedral carbon (PPC) was synthesized via a simple two-step method consisting of carbonization and selective acid etching, and their electrochemical Li/Na/K-ion storage performance was investigated. The highly uniform PPC, with an average particle size of 800 nm, possesses a porous structure and large specific surface area of 258.82 cm2 g– 1. As anodes for Li/Na/K-ion batteries (LIBs/NIBs/KIBs), the PPC matrix exhibited large initial reversible capacity, fast rate capability (LIB: ~ 320 mAh g– 1 at 3C; NIB: ~ 140 mAh g– 1 at 2C; KIB: ~ 110 mAh g– 1 at 2C), better cyclic performance (LIB: ~ 550 mAh g– 1; NIB: ~ 210 mAh g– 1; KIB: ~ 190 mAh g– 1 at 0.2C over 100 cycles), high ionic diffusivity, and excellent structural robustness upon cycling, which demonstrates that the PPC matrix can be highly used as a carbon matrix for high-capacity alloy-based anode materials for LIBs/NIBs/KIBs.

Lead-free perovskite ceramics, which have excellent energy storage capabilities, are attracting attention owing to their high power density and rapid charge-discharge speed. Given that the energy-storage properties of perovskite ceramic capacitors are significantly improved by doping with various elements, modifying their chemical compositions is a fundamental strategy. This study investigated the effect of Zn doping on the microstructure and energy storage performance of potassium sodium niobate (KNN)-based ceramics. Two types of powders and their corresponding ceramics with compositions of (1-x)(K,Na)NbO3-xBi(Ni2/3Ta1/3)O3 (KNN-BNT) and (1-x)(K,Na)NbO3-xBi(Ni1/3Zn1/3Ta1/3) O3 (KNN-BNZT) were prepared via solid-state reactions. The results indicate that Zn doping retards grain growth, resulting in smaller grain sizes in Zn-doped KNN-BNZT than in KNN-BNT ceramics. Moreover, the Zn-doped KNNBNZT ceramics exhibited superior energy storage density and efficiency across all x values. Notably, 0.9KNN-0.1BNZT ceramics demonstrate an energy storage density and efficiency of 0.24 J/cm3 and 96%, respectively. These ceramics also exhibited excellent temperature and frequency stability. This study provides valuable insights into the design of KNNbased ceramic capacitors with enhanced energy storage capabilities through doping strategies.

Buffer materials play an important role in preventing the leakage of radionuclides from the residue. The mineralogical properties of these buffer materials are critical in repository design. This study presents the fundamental properties of Na-type MX80 and a novel Ca-type Bentonil- WRK. The CaO to MgO ratio in Bentonil-WRK was approximately 1:1, and the CaO to Na2O ratio was approximately 2.8:1. These results suggest that Bentonil-WRK demonstrates a lower swelling index compared to Gyeongju bentonite due to its CaO-to-MgO ratio’s proximity to 1:1, despite having a higher montmorillonite content than Gyeongju bentonite. The results of this research can provide useful foundational data for the evaluation of the thermal-hydraulic-mechanical-chemical behavior of buffer materials.

BNKT Ceramics, one of the representative Pb free based piezoelectric ceramics, constitutes a perovskite(ABO3) structure. At this time, the perovskite structure (ABO3) is in the form where the corners of the octahedrons are connected, and in the unit cell, two ions, A and B, are cations, A ion is located at the body center, B ion is located at each corner, and an anion O is located at the center of each side. Since Bi, Na, and K sources constituting the A site are highly volatile at a sintering temperature of 1100℃ or higher, it is difficult to maintain uniformity of the composition. In order to solve this problem, there should be suppression of volatilization of the A site material or additional compensation of the volatilized. In this study, the basic composition of BNKT Ceramics was set to Bi0.5(Na0.78K0.22)0.5TiO3 (= BNKT), and volatile site (Bi, Na, and K sources) were coated in the form of a shell to compensate additionally for the A site ions. In addition, the physical and electrical properties of BNKT and its coated with shell additives(= @BNK) were compared and analyzed, respectively. As a result of analyzing the crystal structure through XRD, both BNKT(Core) and @BNK(Shell) had perovskite phases, and the crystallinity was almost similar. Although the Curie temperature of the two sintered bodies was almost the same (TC = 290 ~ 300 ℃), it was confirmed that the d33 (piezoelectric coefficient) and Pr (residual polarization) values were different. The experimental results indicated that the additional compensation for a shell additive causes the coarsening, resulting in a decrease in sintering density and Pr(remanent polarization). However, coating shell additives to compensate for A site ion is an effective way to suppress volatilization. Based on these experimental results, it would be the biggest advantage to develop an eco-friendly material (Lead-free) that replaced lead (Pb), which is harmful to the human body. This lead-free piezoelectric material can be applied to a biomedical device or products(ex. earphones (hearing aids), heart rate monitors, ultrasonic vibrators, etc.) and skin beauty improvement products (mask packs for whitening and wrinkle improvement).

아유르베다(Āyurveda)에서 장수는 단순히 오래 살기 위함이 아니라 건강한 몸 상태를 유 지하여 깨달음의 시간을 얻기 위함이다. 아유르베다는 노화과정을 이해하고 노화와 관련된 건강문제를 해결하여 몸의 활력을 유지하고 최적의 건강상태를 유지하고자 한다. 이에 대 한 구체적인 방법이 아유르베다의 내과학에 속한 『짜라까 상히따』(Caraka-Saṃhitā) 제6 치 유론(Cikitsā-sthāna)에서 나타난다. 아유르베다에서 ‘위대한 세 가지’(bṛhat-trayi)로 꼽히는 문헌 가운데 하나인 『짜라까 상히따』의 제 6치유론에서는 노화를 극복하는 방법으로 라사 야나(rasāyana)와 바지까라나(vājīkaraṇa)를 제시한다. 본 연구에서는 『짜라까 상히따』에 서 술된 회춘요법 가운데 제 1장에서 서술된 라사야나를 산스끄리뜨(sanskrit) 원어를 그대로 번역하여 아유르베다 연구자들에게 이 내용을 알리고자 제6 치유론의 1장의 내용과 라사야 나의 목적을 알리고자 한다.

인간구성의 24원리의 집합체는 다섯 가지 지각기관, 다섯 가지 행동기관, 감각적 마음 (manas)과 다섯 가지 미세 요소의 16가지 요소와 다섯 가지 거친 요소, 이기적 마음 (ahaṁkāra), 지성적 마음(buddhi)과 미현현(avyakta) 등 8가지 물질원리(aṣṭa-prakṛti)로 이루 어졌다. 감각적 마음의 정의는 ‘감각적 마음은 내적 감각기관’이다. 감각적 마음은 감각기관 의 도움과 함께 인식의 대상을 인식한다. 감각적 마음은 무의식적이지만 행위를 가지고 있 다. 그렇지만 감각적 마음은 개인적 자아와 결합하기 전까지는 행위를 할 수 없다. 이기적 마음은 미현현, 지성적 마음, 다섯 가지 미세요소 등과 함께 여덟 가지 창조의 원천 가운데 하나이다. 이기적 마음은 지성적 마음의 기능에 포함된다. 지성적 마음이 불균등하게 판단 하면 모든 도샤(doṣas)가 손상되는데 그것의 원인은 이기적 마음이 아니라 감각적 마음이 원인이라고 말한다. ‘최고의 자아(paramātman/Ātman)’은 시작도 없으며, 24가지 요소의 모 든 속성과 행동 등은 자아에 의해 목격되며, 그가 원하는 대로 행위를 할 수 있다. 그러나 [최고의] 자아는 자신의 행동의 결과를 향수할 의무가 있다. 자아는 ‘자아’, 또는 번역자들처 럼 ‘최고의 자아’의 의미로 ‘지각력을 지닌 뿌루샤’와는 차원이 다른 것으로 이해된다. 이것 은 고전 상캬 체계에서 보면, 모든 사실이 그렇다고는 단정을 지을 수는 없지만, 굳이 대조 하여 비교하면 뿌루샤는 근본 물질원리인 쁘라끄리띠(prakṛti)의 역할과 비슷하고, 자아(ātman)는 뿌루샤의 역할과 비슷한 것으로 보인다. 그렇다고 아유르베다가 이원론이라는 의미는 아니다.

Rechargeable zinc-based batteries (RZBs) with the advantages of high safety, low cost, abundant resources and environmental friendliness, are considered as advanced secondary battery systems that can be applied to large-scale energy storage. As an important cathode material for RZBs, NASICON-type Na3V2( PO4)3 (NVP) possesses three-dimensional and large-scale ion channels that facilitate the rapid diffusion of Zn2+, and has a higher average operating voltage compared with other vanadiumbased compounds, thus exhibiting the possibility of realizing RZBs with high energy density. However, NVP still has some problems, such as poor electronic conductivity and spontaneous dissolution in aqueous solution. The sluggish kinetics of Zn2+ (de)intercalation in NVP and dendritic growth on the Zn anode also contribute to the poor rate performance and short cycle life of the batteries. In this review, optimization strategies for the electrochemical performance of RZBs with NVP as cathode are systematically elaborated, including modification of NVP cathode and optimization of electrolyte. Several mainstream energy storage mechanisms and analysis methods in this battery system are sorted out and summarized. On this basis, the development direction of NVP–RZB system is further prospected.

During nuclear waste vitrification, loss of sodium (Na) and boron (B) occurs, as these elements are highly volatile at high temperatures, which causes fluctuations in composition and consequently affects the properties of the glass products. In this study, we investigated the volatilization behaviors of Na and B from a simulated high-level waste glass as functions of heating temperature and dwelling duration. Based on the data obtained regarding the composition of Na and B and the structure of the glass, a hypothetical model was proposed to explain the volatilization behaviors of Na and B from a structural viewpoint. As the loss of Na and B during vitrification, the crystallization of the glass occurred. Thus, the crystallization behavior of the simulated waste glass upon composition deviation was studied.