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Chong Zhi Zhang,Hai Zhou Sun,Sheng Li Li,Dan Sang,Chun Hua Zhang,Lu Jin,Marco Antonini,Cun Fa Zhao 아세아·태평양축산학회 2019 Animal Bioscience Vol.32 No.4
Objective: This study investigated the effects of photoperiod on nutrient digestibility, hair follicle (HF) activity and cashmere quality in Inner Mongolia white cashmere goats. Methods: Twenty-four female (non-pregnant) Inner Mongolia white cashmere goats aged 1 to 1.5 years old with similar live weights (mean, 20.36±2.63 kg) were randomly allocated into two groups: a natural daily photoperiod group (NDPP group:10 to 16 h light, n = 12) and a short daily photoperiod group (SDPP group: 7 h light:17 h dark, n = 12). All the goats were housed in individual pens and fed the same diets from May 15 to October 15, 2015. The digestibility of crude protein (CP), dry matter (DM), and neutral detergent fiber (NDF) were measured in different months, along with secondary hair follicle (SHF) activity, concentration of melatonin (MEL), and cashmere quality. Results: Although there was no significant difference in the live weights of goats between the SDPP and NDPP groups (p>0.05), the CP digestibility of goats in the SDPP group was significantly increased compared to the NDPP group in July, September, and October (p<0.05). For the DM and NDF digestibility of goats, a significant increase (p<0.05) was found during in September in the SDPP group. Furthermore, compared to the NDPP group, the SHF activity in July, the MEL concentration in July, and the cashmere fiber length and fiber weight in October were significantly increased in the SDPP group (p<0.05). Conclusion: The cashmere production of Inner Mongolia white cashmere goats was increased without obvious deleterious effects on the cashmere fibers in the SDPP group (metabolizable energy, 8.34 MJ/kg; CP, 11.16%; short daily photoperiod, 7 h light:17 h dark).
남세현,Chong-hai Lee1,Yu-wei Tang,Yuan-sheng Liu,Ki-chul Kim,Sang-yeol Chun,염유림,Hyung chang Kim,Myoung-deok Lee 대한한의학회 2015 대한한의학회지 Vol.36 No.4
The purpose of this report is to evaluate effect of Korean medical treatment on idiopathic gonadotropin-dependent precocious puberty (G-DPP) patient received herbal medicine. We administered Aesopjiyoun-tang remedy to idiopathic G-DPP and analyzed the delay effect by hormonal value and radiographs; the height growth effect by measurement of height. After Korean medical treatment, suppression effect to peak- Luteinizing Hormone level (LHL) is 14.39IU/L to 10.9IU/L for 13month, growth effect to height value is 11cm/13month; and change of mean growth velocity (MGV) is 6.08cm/year to 10.06cm/year. The gain in height by treatment is 3.98cm/year. The result suggests Aesopjiyoun-tang can be an effective treatment for G-DPP. Herbal medicine can be used as an alternative treatment in place of the GnRH treatment.
CONTROL SYSTEM OF THREE DIMENSIONAL HYDRAULIC SIMULATIVE ROCKING TEST-BED
Jiang, Chong Li,Ye, Wei Dong,Ming, Dong,Zhou, Hai Yang,Wang, Xiao Hui 대한전자공학회 1992 HICEC:Harbin International Conference on Electroni Vol.1 No.1
Three dimensional hydraulic simulative rocking test-bed is an experiment tool. It is drived by three dimensional hydraulic pressure, it could be applied to simulate various decline and rocking conditions to actual marine on sea as true as possible. It is vital test means to the equipments on the marine which need examination to decline and rocking condition. It is high accurate, safe, and convenient. By computer control, we strenghen the mobility of system, increase accuracy of trace, widen using scope. In this paper, we introduce sinuous servo system controlled by computer, system design, composition of system, stability analysis, program design, data processing and screen display.
Xu, Hai Bo,Kim, Jeong Hun,Kim, Sangtae,Hwang, Hee Jae,Maurya, Deepam,Choi, Dukhyun,Kang, Chong-Yun,Song, Hyun-Cheol Elsevier 2019 Nano energy Vol.62 No.-
<P><B>Abstract</B></P> <P>Triboelectric generators (TEG), based on contact electrification and electro-static induction, has received a significant attention because of their numerous applications. To improve the electrified surface charge density in TEG, increasing the surface area of dielectric materials or forming internal hollow structures are typically employed to increase capacitance. However, the fabrication processes of such structures are complex and time-consuming. Here, we provide a facile and cost-effective synthesis method for the porous PDMS based TEG via a novel vapor encapsulation casting (VEC). The double dielectric layer composed of the porous and dense PDMS layers are formed in-site through VEC. The thickness and the thickness ratio of the double dielectric layer can be precisely controlled by adjusting the uncured PDMS thickness and vapor penetration depth. The double dielectric layer TEG (DTEG) exhibits the improved harvesting performance because the porous dielectric layer increases the capacitance and compressibility, while the dense layer passivates the fully open pores which reduce the charging surface area as completely opening through the dielectric layer without contacting the bottom electrode. We obtain the maximum output voltage of 345 V and short circuit current of 3 μA/cm<SUP>2</SUP> from DTEG having 0.95 porous thickness ratio, resulting 330% enhancement in the power output as compared to the dense PDMS based TEG. We further investigate the performance of DTEG under various operating conditions. We also demonstrate the operation of Bluetooth distance/temperature sensors using capacitors charged by DTEG.</P> <P><B>Highlights</B></P> <P> <UL> <LI> TEG based on the double dielectric layer composed of the sponge-like porous and flat dense elastomer is demonstrated. </LI> <LI> Facile and affordable synthesis method for the porous PDMS is provided via the novel vapor encapsulation casting. </LI> <LI> Highly deformable porous PDMS effectively enhances its capacitance under a pressure. </LI> <LI> Flat dense second layer of PDMS reduces the device impedance and improves the contact interface with an electrode. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
INVOLUTION-PRESERVING MAPS WITHOUT THE LINEARITY ASSUMPTION AND ITS APPLICATION
Xu, Jin-Li,Cao, Chong-Guang,Wu, Hai-Yan The Korean Society for Computational and Applied M 2009 Journal of applied mathematics & informatics Vol.27 No.1
Suppose F is a field of characteristic not 2 and $F\;{\neq}\;Z_3$. Let $M_n(F)$ be the linear space of all $n{\times}n$ matrices over F, and let ${\Gamma}_n(F)$ be the subset of $M_n(F)$ consisting of all $n{\times}n$ involutory matrices. We denote by ${\Phi}_n(F)$ the set of all maps from $M_n(F)$ to itself satisfying A - ${\lambda}B{\in}{\Gamma}_n(F)$ if and only if ${\phi}(A)$ - ${\lambda}{\phi}(B){\in}{\Gamma}_n(F)$ for every A, $B{\in}M_n(F)$ and ${\lambda}{\in}F$. It was showed that ${\phi}{\in}{\Phi}_n(F)$ if and only if there exist an invertible matrix $P{\in}M_n(F)$ and an involutory element ${\varepsilon}$ such that either ${\phi}(A)={\varepsilon}PAP^{-1}$ for every $A{\in}M_n(F)$ or ${\phi}(A)={\varepsilon}PA^{T}P^{-1}$ for every $A{\in}M_n(F)$. As an application, the maps preserving inverses of matrces also are characterized.