하루 콩단백질 25g 섭취를 위한 메뉴작성 및 영양성분 분석

한재숙,김정애,서봉순,이연정,서향순,조연숙,한경필,이신정,오옥희,우경자,조은자,구성자,김수진,李承彦,南出隆久 동아시아식생활학회 2002 동아시아식생활학회지 Vol.12 No.2

The purpose of this study was to develop menus for daily intake of 25g soybean protein and to analyse nutrients of these foods. Analytical values were compared to the theoretical one using the food composition table and recommended dietary allowances for Koreans (7th revision). The results are as follows. 1. Soybean curd residue stew, Soybean curd, Kimchi saute, and hard boiled soybean and lotus root were selected for the menu for January, of which the content of soy bean protein(SBP) was 33.1g, soybean stew, soybean curd and soybean sprout saute, and Italian deep fried soybean curd were for February, of which the content of SBP was 35.0g. The content of SBP in soybean paste soup with soybean curd, fried soybean curd and fried soybean curd roll, the menu for March, was 24.9g. That of April were soybean curd gratin with soymilk, soybean curd and ham with garlic dressing and the content of SBP was 26.3g. That of May were soybean porridge, soybean flour cake with honey (Dasik), soybean sprout soup and the content of SBP was 26.7g. That of June were soymilk, pan-fried soybean curd, steamed soybean curd with chicken and the content of SBP was 28.4g. That of July were noodle with soymilk, mapatofu, soybean curd salad and the content of SBP was 24.7g. That of August were soybean sprout with mustard dressing, Tossed green pepper with raw soybean flour, Tofu and Kimchi stew, soybean curd steak and the content of SBP was 26.2g. That of September were Chinese cabbage soup with raw soybean flour, sweet and sour tofu and the content of SBP was 23.2g. That of Oct. were Fermented soybean stew, soybean pan cake and the content of SBP was 24.3g. That of November were not-pressed soybean curd casserole, pan-fried mashed soybean curd with egg, stir frying deep-fried soybean curd with vegetables and the content of SBP was 22.4g. That of December were soybean curd and mushroom casserole, fried soybean curd and vegetables, hard boiled soybean curd and the content of SBP was 28.9g. 2. The ratio of the analytical value over theoretical value (A/B%) of one serving in kcal, carbohydrate, protein, fat, ash and dietary fiber were 57.7~107.7%, 42.9~131.9%, 79.2~118.3%, 54.5~100%, 40.7~80.8% and 42.1~113.2%, respectively. 3. The ratio of A/B% of one serving in Ca, K, Na, P and Fe were 44.1~93.6%, 59.0~153.1%, 53.1~117.7% 64.6%~138.8 and 33.8~77.3%, respectively. That in Fe was the lowest among minerals. 4. The ratio of analytical value over Korean R.D.A(A/C%) in Ca was relatively higher (22.0~85.9%) than that in kcal(18~63%). 5. The ratio of A/C% in Fe was 25.1~64.3% and lower than that in Ca and protein in general.

ANGPTL4 stabilizes atherosclerotic plaques and modulates the phenotypic transition of vascular smooth muscle cells through KLF4 downregulation

Cho Dong Im,Ahn Min Joo,Cho Hyang Hee,Cho Meeyoung,전주희,Kang Bo Gyeong,Lim Soo Yeon,Yoo Soo Ji,Kim Mi Ra,Kim Hyung Seok,Lee Su-Jin,Dat Le Thanh,Lee Changho,Kim Yong Sook,Ahn Youngkeun 생화학분자생물학회 2023 Experimental and molecular medicine Vol.55 No.-

Atherosclerosis, the leading cause of death, is a vascular disease of chronic inflammation. We recently showed that angiopoietin-like 4 (ANGPTL4) promotes cardiac repair by suppressing pathological inflammation. Given the fundamental contribution of inflammation to atherosclerosis, we assessed the role of ANGPTL4 in the development of atherosclerosis and determined whether ANGPTL4 regulates atherosclerotic plaque stability. We injected ANGPTL4 protein twice a week into atherosclerotic Apoe−/− mice and analyzed the atherosclerotic lesion size, inflammation, and plaque stability. In atherosclerotic mice, ANGPTL4 reduced atherosclerotic plaque size and vascular inflammation. In the atherosclerotic lesions and fibrous caps, the number of α-SMA(+), SM22α(+), and SM-MHC(+) cells was higher, while the number of CD68(+) and Mac2(+) cells was lower in the ANGPTL4 group. Most importantly, the fibrous cap was significantly thicker in the ANGPTL4 group than in the control group. Smooth muscle cells (SMCs) isolated from atherosclerotic aortas showed significantly increased expression of CD68 and Krüppel-like factor 4 (KLF4), a modulator of the vascular SMC phenotype, along with downregulation of α-SMA, and these changes were attenuated by ANGPTL4 treatment. Furthermore, ANGPTL4 reduced TNFα-induced NADPH oxidase 1 (NOX1), a major source of reactive oxygen species, resulting in the attenuation of KLF4-mediated SMC phenotypic changes. We showed that acute myocardial infarction (AMI) patients with higher levels of ANGPTL4 had fewer vascular events than AMI patients with lower levels of ANGPTL4 (p < 0.05). Our results reveal that ANGPTL4 treatment inhibits atherogenesis and suggest that targeting vascular stability and inflammation may serve as a novel therapeutic strategy to prevent and treat atherosclerosis. Even more importantly, ANGPTL4 treatment inhibited the phenotypic changes of SMCs into macrophage-like cells by downregulating NOX1 activation of KLF4, leading to the formation of more stable plaques.

N bit result integer multiplier with over-flow detector

Cho, Gyeong Yeon 부경대학교 기초과학연구소 2001 부경대 기초과학연구논문집 Vol.4 No.-

32 비트 곱셈기를 사용한 골드스미트 배정도실수 역수 계산기

조경연(Cho, Gyeong-Yeon) 한국산학기술학회 2014 한국산학기술학회논문지 Vol.15 No.5

최근 그래픽 프로세서,멀티미디어 프로세서,음성처리 프로세서 등에서 부동소수점이 주로 사용된다.한편 C,Java 등 고급언어에서는 단정도실수와 배정도실수를 사용하고 있다.본 논문에서는 32비트 곱셈기를 사용하여 배정도실수의 역 수를 계산하는 알고리즘을 제안한다.배정도실수 가수를 상위 부분과 하위 부분으로 나누고,상위 부분의 역수를 골드스미스 알고리즘으로 계산하고,이를 초기값으로 하여 배정도실수의 역수를 계산하는 알고리즘을 제안한다.제안한 알고리즘은 입력 값에 따라서 곱셈 횟수가 다르므로,평균 곱셈 횟수를 계산하는 방식을 유도하고,여러 크기의 근사 역수 테이블에서 평균 곱셈 횟수를 계산한다. Modern graphic processors, multimedia processors and audio processors mostly use floating-point number. Meanwhile, high-level language such as C and Java uses both single-precision and double precision floating-point number. In this paper, an algorithm which computes the reciprocal of double precision floating-point number using a 32 bit multiplier is proposed. It divides the mantissa of double precision floating-point number to upper part and lower part, and calculates the reciprocal of the upper part with Goldschmidt's algorithm, and computes the reciprocal of double precision floating-point number with calculated upper part reciprocal as the initial value is proposed. Since the number of multiplications performed by the proposed algorithm is dependent on the mantissa of floating-point number, the average number of multiplications per an operation is derived from some reciprocal tables with varying sizes.

256 비트 대칭 SPN 블록 암호 XSB

조경연(Gyeong-Yeon Cho) 한국산업정보학회 2012 한국산업정보학회논문지 Vol.17 No.3

본 논문에서는 암호와 복호 과정이 동일한 SPN 구조 256 비트 블록 암호 알고리즘인 가칭 XSB(eXtended SPN Block cipher)를 제안한다. XSB는 짝수 N 라운드로 구성하고, 1 라운드부터 N/2-1 라운드까지는 전함수를 적용하고, N/2+1 라운드부터 N 라운드까지는 후함수를 적용한다. 각 라운드는 키 합산층, 치환층, 바이트 교환층 및 확산층의 네 단계로 구성한다. 또한 전함수단과 후함수단 사이에 대칭 블록을 구성하는 대칭단을 삽입한다. 대칭단은 간단한 비트 슬라이스 대합 S-박스로 구성한다. 비트 슬라이스 대합 S-박스는 Square 공격, 부매랑 공격, 불능 차분 공격 등의 공격을 어렵게 한다. In this paper, we propose a SPN 256 bit block cipher so called XSB(eXtended SPN Block cipher) which has a symmetric structure in encryption and decryption. The proposed XSB is composed of the even numbers of N rounds where the first half of them, 1 to N/2-1 round, applies a pre-function and the last half of them, N/2+1 to N round, employs a post-function. Each round consists of a round key addition layer, a substiution layer, a byte exchange layer and a diffusion layer. And a symmetry layer is located in between the pre-function layer and the post-function layer. The symmetric layer is composed with a multiple simple bit slice involution S-Boxes. The bit slice involution S-Box symmetric layer increases difficult to attack cipher by Square attack, Boomerang attack, Impossible differentials cryptanalysis etc.

암호와 복호가 동일한 변형 AES

조경연(Gyeong-Yeon Cho),송홍복(Hong-Bok Song) 한국산업정보학회 2010 한국산업정보학회논문지 Vol.15 No.2

블록 암호는 Feistel 구조와 SPN 구조로 나눌 수 있다. Feistel 구조는 암호 및 복호알고리즘이 같은 구조이고, SPN 구조는 암호 및 복호 알고리즘이 다르다. 본 논문에서는 암호와 복호 과정이 동일한 SPN 구조 블록 암호 알고리즘을 제안한다. 즉 SPN 구조 전체를 짝수인 N 라운드로 구성하고 1 라운드부터 N/2 라운드까지는 정함수를 적용하고, (N/2)+1 라운드부터 N 라운드까지는 역함수를 적용한다. 또한 정함수단과 역함수단 사이에 대칭 블록을 구성하는 대칭단을 삽입한다. 본 논문에서 정함수로는 AES의 암호 알고리즘을, 역함수로는 AES의 복호 알고리즘을 사용하고, 대칭단은 간단한 행렬식과 라운드 키 합산으로 구성한다. 본 논문에서 제안한 암호와 복호가 동일한 변형 AES는 하드웨어 구성이 간단한 장점을 가지므로 제한적 하드웨어 및 소프트웨어 환경인 스마트카드와 전자 칩이 내장된 태그와 같은 RFID 환경에서 안전하고 효율적인 암호 시스템을 구성할 수 있다. Feistel and SPN are the two main structures in a block cipher. Feistel is a symmetric structure which has the same structure in encryption and decryption, but SPN is not a symmetric structure. In this paper, we propose a SPN which has a symmetric structure in encryption and decryption. The whole operations of proposed algorithm are composed of the even numbers of N rounds where the first half of them, 1 to N/2 round, applies a right function and the last half of them, (N+1)/2 to N round, employs an inverse function. And a symmetry layer is located in between the right function layer and the inverse function layer. In this paper, AES encryption and decryption function are selected for the right function and the inverse function, respectively. The symmetric layer is composed with simple matrix and round key addition. Due to the simplicity of the symmetric SPN structure in hardware implementation, the proposed modified AES is believed to construct a safe and efficient cipher in Smart Card and RFID environments where electronic chips are built in.

가변시간 K차 이중 반복 부동소수점 나눗셈

조경연(Gyeong-Yeon Cho) 한국정보기술학회 2016 한국정보기술학회논문지 Vol.14 No.7

Implementation of floating point division in hardware has gained importance in the recent years. In particular the embedded system including IoT(Internet of Things) is used, the floating point is increasing in hardware implementation. Compared other operations such as addition and multiplication, division involves much higher latencies and large hardware requirement. The division N/D is calculated by multiplying the reciprocal of divisor D and dividend N. In this paper, applying the Taylor series to the double iterative division algorithm, a tentative Kth order double iterative floating point number reciprocal algorithm which performs K times multiplications in one iteration is proposed. The proposed algorithm calculates an error while the repeating multiplications, and carries out when the error is below a predetermined value. Since the proposed algorithm only performs the multiplications until the error gets smaller than a given value, it can be used to improve the performance of a divider unit.

32 비트 곱셈기를 사용한 뉴톤-랍손 배정도실수 역수 계산기

조경연(Gyeong-Yeon Cho) 한국산업정보학회 2013 한국산업정보학회논문지 Vol.18 No.6

최근 그래픽 프로세서, 멀티미디어 프로세서, 음성처리 프로세서 등에서 부동소수점이 주로 사용된다. C, Java 등 고급언어에서는 단정도실수와 배정도실수를 사용하고 있다. 본 논문에서는 32 비트 곱셈기를 사용하여 배정도실수의 역수를 계산하는 알고리즘을 제안한다. 배정도 실수 가수를 상위 부분과 하위 부분으로 나누고, 상위 부분의 역수를 뉴턴-랍손 알고리즘으로 계산한다. 그리고 이를 초기값으로 하여 배정도실수의 역수를 계산한다. 제안한 알고리즘은 입력 값에 따라서 곱셈 횟수가 다르므로, 평균 곱셈 횟수를 계산하는 방식을 유도하고, 여러 크기의 근사 역수 테이블에서 평균 곱셈 횟수를 계산한다. Modern graphic processors, multimedia processors and audio processors mostly use floating-point number. High-level language such as C and Java use both single precision and double precision floating-point number. In this paper, an algorithm which computes the reciprocal of double precision floating-point number using a 32 bit multiplier is proposed. It divides the mantissa of double precision floating-point number to upper part and lower part, and calculates the reciprocal of the upper part with Newton-Raphson algorithm. And it computes the reciprocal of double precision floating-point number with calculated upper part reciprocal as the initial value. Since the number of multiplications performed by the proposed algorithm is dependent on the mantissa of floating-point number, the average number of multiplications per an operation is derived from some reciprocal tables with varying sizes.

16 비트 EISC 마이크로 프로세서에 관한 연구

조경연(Gyeong-Yeon Cho) 한국멀티미디어학회 2000 멀티미디어학회논문지 Vol.3 No.2

xEV 구동전동기의 고효율 운전영역 확대를 위한 싸이리스터 소자 이용 전동기 직병렬 권선 절환 회로 토폴로지 및 제어방안 연구

조수연(Su-Yeon Cho),신양진(Yang-Jin Shin),조재익(Jae-Ick Cho),유태현(Tae-Hyun Yu),정호창(Ho-Chang Jung),박성열(Sung-Youl Park),최세완(Se-Wan Choi),신외경(Wae-Gyeong Shin) 대한전기학회 2019 대한전기학회 학술대회 논문집 Vol.2019 No.7