Examination of lysine requirement of healthy young male adults on a Chinese habitual diet by the modified indicator amino acid oxidation method

Ying Tian,Jing Peng,Yu Chen,Junjun Gong,Huiqing Xu 한국영양학회 2014 Nutrition Research and Practice Vol.8 No.1

There is currently no reference for intake of lysine for Chinese people; therefore, the present study was conducted to determine the lysine requirement of Chinese young male adults on a habitual Chinese mixed diet based on the modified indicator amino acid oxidation method. Seven young men with a mean age of 23.7 ± 2.2 years that were healthy based on questionnaire, physical examinations and screening tests were evaluated. Subjects were evaluated over five consecutive 7 day periods, during which time they were administered decreasing amounts of lysine via the diet (65, 55, 45, 35, 25 mg·kg<SUP>-1</SUP>·d<SUP>-1</SUP>). Subjects were allowed to adapt from day 1 to 6 and the isotopes were measured on day 7 in each period. The subjects" body weights, body compositions and plasma proteins were also examined during the study. Amino acid kinetics were measured based on the indicator amino acid oxidation technique using the <SUP>13</SUP>CO2 release rate and phenylalanine oxidation rate to estimate lysine requirements. Body weights, body compositions, and plasma proteins of subjects did not change significantly relative to those at baseline. The mean and the upper 95% CI of lysine requirements of Chinese habitual diets were determined to be 58.41 and 70.09 mg·kg<SUP>-1</SUP>·d<SUP>-1</SUP>, respectively, based on the <SUP>13</SUP>CO2 release rate and 54.28 and 65.14 mg·kg<SUP>-1</SUP>·d<SUP>-1</SUP>, respectively, based on the phenylalanine oxidation rate.

Quality Variable Prediction for Dynamic Process Based on Adaptive Principal Component Regression with Selective Integration of Multiple Local Models

( Ying Tian ),( Yuting Zhu ) 한국인터넷정보학회 2021 KSII Transactions on Internet and Information Syst Vol.15 No.4

The measurement of the key product quality index plays an important role in improving the production efficiency and ensuring the safety of the enterprise. Since the actual working conditions and parameters will inevitably change to some extent with time, such as drift of working point, wear of equipment and temperature change, etc., these will lead to the degradation of the quality variable prediction model. To deal with this problem, the selective integrated moving windows based principal component regression (SIMV-PCR) is proposed in this study. In the algorithm of traditional moving window, only the latest local process information is used, and the global process information will not be enough. In order to make full use of the process information contained in the past windows, a set of local models with differences are selected through hypothesis testing theory. The significance levels of both T - test and χ² - test are used to judge whether there is identity between two local models. Then the models are integrated by Bayesian quality estimation to improve the accuracy of quality variable prediction. The effectiveness of the proposed adaptive soft measurement method is verified by a numerical example and a practical industrial process.

L0 Gradient based Image Smoothing Method for Ear Identification

Ying Tian,Haodi Ma 보안공학연구지원센터 2015 International Journal of Signal Processing, Image Vol.8 No.6

Ear identification is an important biometric identification technique and has been widely used in many applications. One of the most important components in ear identification system is image preprocessing. The performance of image preprocessing has a significant impact on the accuracy of ear identification system. This paper proposes a L0 gradient based image smoothing method for ear identification. First, ear images are filtered using L0 gradient based method. Then the contrast of the image is enhanced using histogram equalization method in order to make ear edges more discriminative. Comparative experiments with an existing algorithm demonstrate that our method has better performance and is more suitable for ear identification.

Collective dynamics in multi-population Hamiltonian systems

Tian Jing,Ying Jiaqi,Qiao Tianli,Qiu Haibo 한국물리학회 2023 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.82 No.12

In this paper, we investigate measure synchronization (MS) in a two-population network of coupled metronomes system. The system consists of N identical metronomes placed on two swing boards, and the two swings are connected by spring of stifness k. Metronomes on each swing represents a single population. We mainly study the collective dynamics of multipopulation Hamiltonian induced by increased couplings, including inter-population and intra-population couplings. It is found that by tuning K for the inter-population coupling intensity and R for the intra-population coupling intensity, the system reaches various MS states at certain critical coupling intensities, including partial MS and complete MS. The occurrence of partial and complete MS are discussed particularly by analyzing the Poincaré sections of the Hamiltonian system. In addition, we fnd correspondence in between the phase-locking dynamics and various MS transitions.

Dynamic Response of Reinforced Concrete Beams Following Instantaneous Removal of a Bearing Column

Tian, Ying,Su, Youpo Korea Concrete Institute 2011 International Journal of Concrete Structures and M Vol.5 No.1

This paper documents an experimental study of dynamic response of reinforced concrete beams following instantaneous removal of a bearing column. Four half-scale specimens representing two-span beam bridging across the removed column were tested. The test boundary conditions simulated rotational and longitudinal restraints imposed on a frame beam by the neighboring structural components. The gravity loads were simulated by attaching mass blocks on the beams at three locations. Dynamic loading effects due to sudden removal of a column were simulated by quickly releasing the supporting force at the middle of the specimens. The experimental study investigated the load-carrying capacity of beams restrained longitudinally at the boundaries and dynamic impact on forces. The tests confirmed the extra flexural strength provided by compressive arch action under dynamic loading. The tests also indicated that the dynamic amplification effects on forces were much lower than that assumed in the current design guideline for progressive collapse.

Nonlinear modeling of flat-plate structures using grid beam elements

Ying Tian,Jianwei Chen,Aly Said,Jian Zhao 사단법인 한국계산역학회 2012 Computers and Concrete, An International Journal Vol.10 No.5

This paper presents a simplified grid beam model for simulating the nonlinear response of reinforced concrete flat-plate structures. The beam elements are defined with nonlinear behavior for bending moment and torsion. The flexural stiffness and torsional strength of the beam elements are defined based on experimental data to implicitly account for slab two-way bending effects. A failure criterion that considers the interaction between the punching strength and slab flexural behavior is incorporated in the model. The effects of bond-slip of slab reinforcement on connection stiffness are examined. The proposed grid beam model is validated by simulating large-scale tests of slab-column connections subjected to concentric gravity loading and unbalanced moment. This study also determines the critical parameters for a hysteretic model used to simulate flat-plates subjected to cyclic lateral loading.

Dynamic Response of Reinforced Concrete Beams Following Instantaneous Removal of a Bearing Column

Ying Tian,Youpo Su 한국콘크리트학회 2011 International Journal of Concrete Structures and M Vol.5 No.1

This paper documents an experimental study of dynamic response of reinforced concrete beams following instantaneous removal of a bearing column. Four half-scale specimens representing two-span beam bridging across the removed column were tested. The test boundary conditions simulated rotational and longitudinal restraints imposed on a frame beam by the neighboring structural components. The gravity loads were simulated by attaching mass blocks on the beams at three locations. Dynamic loading effects due to sudden removal of a column were simulated by quickly releasing the supporting force at the middle of the specimens. The experimental study investigated the load-carrying capacity of beams restrained longitudinally at the boundaries and dynamic impact on forces. The tests confirmed the extra flexural strength provided by compressive arch action under dynamic loading. The tests also indicated that the dynamic amplification effects on forces were much lower than that assumed in the current design guideline for progressive collapse.

Trajectory Tracking Control of Reconfigurable Space Manipulator

Ying Tian,Ying-Hong Jia 제어로봇시스템학회 2023 제어로봇시스템학회 국제학술대회 논문집 Vol.2023 No.10

Study and Optimization of Structural Parametrics of Oil Seal by Response Surface Method

Fu-Ying Zhang,Jian-Lei Chen,Tian-Tian Li,Yu-Fei Zhang 한국정밀공학회 2019 International Journal of Precision Engineering and Vol.20 No.2

The effect of structural parameters such as contact width, low-angle, high-angle, interference and waist depth on the sealing performance of rotary lip seal was analyzed by finite element method. Based on the macroscopic pumping effect model of the rotary shaft lip seal and the pumping rate equation, the influence of structural parameters on pumping rate was calculated and analyzed. The structural and operational parameters of lip seal were optimized by the response surface method. 32 kinds of the model were made by compounding levels on each factor, and the response surface regression characteristics of each model are analyzed. The results show that low-angle, high-angle and interference are the main factors that influence significantly the seal performance of rotary shaft lip seal, and contact width, low-angle and high-angle are major influential factors for pumping effect. Therefore, these factors are considered as the most important factors for an optimum design of the rotary shaft lip seal. The optimal conditions are obtained, and the results are also verified by analytical methods.

性愛之美和性政治

田鷹(Tian Ying) 동아인문학회 2010 동아인문학 Vol.17 No.-

영국문단에서 명성을 떨쳤던 영국작가 D.H. 로렌스와 중국작가 장현량은 각자의 소설에서 모두 대담하게 성 묘사를 함으로써 세계문단의 주목을 끌었다. 뿐만 아니라 그들은 모두 소설에서 성의 아름다움과 성 정치를 결합하였다. 그 중에서 로렌스의 작품 《채털리 부인의 사랑》과 장현량의 《남자의 반은 여자》는 그 대표작으로 일컬을 수 있다. 이 두 편의 소설을 자세히 읽어보면, 놀라울 정도로 비슷한 점을 발견하기 어렵지 않다. 《채털리 부인의 사랑》에서 남주인공 Clifford는 전쟁으로 하반신이 마비되어 성기능을 상실함으로써 “폐인”이 되었고, 《남자의 반은 여자》에서 남주인공 장영린 역시 문화대혁명시기 좌파노선의 피해로 한때 성기능을 상실함으로써 폐인이 되며; 소설의 여주인공들 역시 남편의 성기능 상실로 모두 바람을 피운다. 뿐만 아니라, 두 작자는 모두 성애를 주로 다루었으며, 이들의 성욕은 모두 정치와 깊은 연관을 갖고 있다. 이로써 사회과도기 중의 ‘공업문명’과 ‘정치혁명’이 가져다 준 인성의 변질을 폭로했다. 두 소설 모두 동일한 주제를 다루었는데, 바로 ‘성’의 중요성과 더불어 인성의 재귀를 호소했다. 물론, 두 편 소설은 차이점도 분명하다, 특히 소설에서 ‘성’에 대한 심미 관념과 인생관, 사회가치에 대해 두 작자의 견해에는 상당한 차이점이 존재한다. 로렌스의 성 묘사는 영혼과 육체의 통합, 성의 화합, 성적 미, ‘성은 아름다움이다’, 성이 없으면 세상은 암울하고 빛을 잃게 된다. 등에 중점을 두었으며, 성책략으로 영국을 구하고자 하는 데 목적이 있었다. 이와 달리 장현량은 민족우환의식이 깊은 작가로 중국 문화대혁명을 배경으로 그 특수한 연대에 성이 없는 사랑과 사랑이 없는 성생활을 해왔던, 다시 말하면 성과 사랑의 대립, 영혼과 육체의 분리를 다루었다. 그의 소설의 성 묘사에서 사회정치는 성과 사랑이 변절하는 데 주된 역량이었다. 그가 성을 다룬 것은 주요하게 성 화제를 빌어 사회와 정치를 반영하고 역사를 되살피는 데 목적이 있다. 그는 성을 묘사함으로 당시 인성을 말살했던 사회정치에 대해 신랄하게 비판하고 있다.