Investigation on Chinese Manuscripts of Yao Nationality in Shaye Li Wu area, Laos

Xiaoyang,Xaejao Kaosien (Laos),Zhang Yanping 아시아사회과학학회 2021 Jornal of Asia Social Science Vol.3 No.1

There are a large number of manuscripts written in Chinese characters mixed with Yao folk characters in Li Wu area of Shaye, Laos. These documents are precious materials for studying Yao culture and physical evidence of Chinese Han culture spreading along with Yao’s migration. After investigating 48 paper manuscripts in Chinese collected by Panyao Master in Shaye Li Wu, Laos, it is found that the contents of manuscripts are mainly related to Mongolian studies, literature and religious culture. Yao manuscripts in Chinese have a high recognition among Yao men in Shaye Li Wu area, Laos, but there is a danger of dying out gradually, so it is necessary to strengthen protection and inheritance. Coordinating the strength of the government and all parties, strengthening Chinese teaching, strengthening publicity and development and utilization, enhancing Yao women’s awareness of Chinese manuscripts, and establishing Yao cultural libraries and study centers are effective measures to protect Yao Chinese manuscripts and enhance the cohesion and self-confidence of local Yao ethnic groups.

Identifying natural genotypes of grain number per panicle in rice (Oryza sativa L.) by association mapping

Jianyin Xie,Fengmei Li,Najeeb Ullah Khan,Xiaoyang Zhu,Xueqiang Wang,Zhifang Zhang,Xiaoqian Ma,Yan Zhao,Quan Zhang,Shuyang Zhang,Zhanying Zhang,Jinjie Li,Zichao Li,Hongliang Zhang 한국유전학회 2019 Genes & Genomics Vol.41 No.3

Introduction As one of the main yield components, grain number per panicle (GNP) played critical role in the rice yield improvement. The identification of natural advantageous variations under different situations will promote the sustainable genetic improvement in rice yield. Objectives This study was designed to identify natural genotypes in a rice mini-core collection, to examine the genotypic effects across the indica and japonica genetic background in different environments, and excavating the superior genotypes that had drove the modern genetic improvement. Methods The association mapping of GNP was carried out using a mini-core collection including 154 indica and 119 japonica accessions in seven different environments. Genotypic effects of each genotype for each QTL were calculated and genotype frequency distortion between the commercial rice cultivars and landraces was screened by χ2-test. Results In total, 74 QTLs containing stable and sensitive QTLs in various environments were detected. Within them, 20 positive and 24 negative genotypes in indica, and 24 positive and 16 negative genotypes in japonica were identified. When checking the accumulation of positive genotypes identified in indica across cultivars in each of the two subspecies, it indicated that increased number of positive genotypes identified in indica results in the substantially increased GNP in both indica and japonica across all of the environments, while this trend was not obvious for the positive genotypes identified in japonica especially in short day environments. Moreover, the positive and negative genotype frequency distortion between the landraces and commercial rice cultivars indicated that both positive selection of positive genotypes and negative selection of negative genotypes had driven the genetic improvement on GNP. Conclusion Our findings suggested that the accumulation of positive genotypes and purifying negative genotypes played equivalently important roles in the improvement of rice yield, but the efficient use for some QTLs or genotypes depends on the comprehensive evaluation of their effect under diverse genetic backgrounds and environments.

Adverse effects of subchronic exposure to cooking oil fumes on the gonads and the GPR30‑mediated signaling pathway in female rats

Xiaoyang Zhang,Yonghua He,Quanhui Lin,Lili Huang,Qunwei Zhang,Youqiong Xu 대한독성 유전단백체 학회 2020 Molecular & cellular toxicology Vol.16 No.1

Background Cooking oil fumes (COFs) are composed of particulate matter, polycyclic aromatic hydrocarbons, volatile organic compounds, aldehydes, and ketones, and are currently a global health concern. Some agents in COFs are mutagenic and carcinogenic. However, only a few reports have addressed the hazardous effects of COF exposure on the female reproductive system. In this study, we explored the effects of subchronic exposure to COFs on female gonads in vivo and the possible involvement of the G-protein-coupled receptor 30 signaling pathway. Methods COFs were generated by heating commercially available canola oil in an iron pot. Adult female Wistar rats at 2 months of age were exposed to COFs at 32 mg/m3 for 0, 0.5, 1, 2, or 4 h/day for 56 days. The estrous cycle in rats was studied twice at 7:00 a.m. and 7:00 p.m. on the 43rd treatment day until the current estrous cycle was complete. The rat body weight was measured before the experiment and at day 56 post-exposure. At the end of the experiment, rat blood was collected for gonadal hormone assay, and ovaries were collected for histology and mRNA isolation. The mRNA levels of GPR30, EGFR, STAT3, and ERK were determined by quantitative RT-PCR. Results At a concentration of 32.21 ± 5.11 mg/m3, COF exposure extended the estrous cycle in rats, and ovary coefficient decreased. COFs showed various effects on the sex hormone levels and follicles, depending on its exposure level. Exposure to COFs led to the changes in mRNA levels of the G-protein-coupled receptor 30 (GPR30), epidermal growth factor receptor (EGFR), signal transducer and activator of transcription 3 (STAT3), and extracellular signal-regulated kinase (ERK). Conclusion This study indicated that cooking oil fume exposure disrupted the estrous cycle, sex hormone patterns, and follicle development in female rats in a dose-dependent manner. These adverse effects of cooking oil fumes on female reproductive health were correlated with the G-protein-coupled receptor 30-mediated signaling pathway.

Dynamics of Microbial Community Structure, Function and Assembly Mechanism with Increasing Stand Age of Slash Pine (Pinus elliottii) Plantations in Houtian Sandy Area, South China

Zhang Xiaoyang,Xiong Si-Yi,Wu Xiukun,Zeng Bei-Bei,Mo Yang-Mei,Deng Zhi-Cheng,Wei Qi,Gao Yang,Cui Licao,Liu Jianping,Long Haozhi 한국미생물학회 2023 The journal of microbiology Vol.61 No.11

Establishing slash pine plantations is the primary method for restoring sandification land in the Houtian area of South China. However, the microbial variation pattern with increasing stand age remains unclear. In this study, we investigated microbial community structure and function in bare sandy land and four stand age gradients, exploring ecological processes that determine their assembly. We did not observe a significant increase in the absolute abundance of bacteria or fungi with stand age. Bacterial communities were dominated by Chloroflexi, Actinobacteria, Proteobacteria, and Acidobacteria; the relative abundance of Chloroflexi significantly declined while Proteobacteria and Acidobacteria significantly increased with stand age. Fungal communities showed succession at the genus level, with Pisolithus most abundant in soils of younger stands (1- and 6-year-old). Turnover of fungal communities was primarily driven by stochastic processes; both deterministic and stochastic processes influenced the assembly of bacterial communities, with the relative importance of stochastic processes gradually increasing with stand age. Bacterial and fungal communities showed the strongest correlation with the diameter at breast height, followed by soil available phosphorus and water content. Notably, there was a significant increase in the relative abundance of functional groups involved in nitrogen fixation and uptake as stand age increased. Overall, this study highlights the important effects of slash pine stand age on microbial communities in sandy lands and suggests attention to the nitrogen and phosphorus requirements of slash pine plantations in the later stages of sandy management.

Effects of boron source composition ratio on the microstructure and adsorption performance of hexagonal boron nitride prepared by template method

Zhang Ning,Liu Huan,Zhang Tianwen,Kan Hongmin,Wang Xiaoyang,Cui Xingyu 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.3

The paper was prepared spherical hexagonal boron nitride with different microstructures under flowing ammoniaatmosphere. The effect of boron source component ratios (molar ratio of borax and boric acid) on the phase composition ofthe sample were studied: the work also explored the effect of boron source component ratio on the microstructure andadsorption performance of h-BN. Spherical hexagonal boron nitride had corresponding to shell structure, mesoporousstructure, and solid structure when the ratio of boron source components respectively was 1 : 0.5, 1 : 1, and 1 : 2. Between 1 : 1and 1:0.5, the former had an lower adsorptions at low relative pressures. On the contrary, the adsorption of former wouldincreased at higher relative pressures and reached up 276.02 cm3 g−1, and the maximum adsorption of the latter reached only228.20 cm3 g−1. Under any relative pressure, the adsorption capacity was the lowest when the boron source composition ratiowas 1 : 2.

Adsorption resin/polyethersulfone membrane used for plasma separation and middle molecular toxins adsorption

Xiaoyang Hou,Lilan Huang,Han Zhang,Qingping Xin,Hong Li,Hui Ye,Yuzhong Zhang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-

Accumulation of endogenous and exogenous toxins in patients with chronic kidney disease increases thekidney burden. The newly developed plasma separation adsorption membranes provide a new model forthe removal of middle molecular toxins. In this study, the adsorption resin LX-1000H is physically pulverizedand blended into polyethersulfone matrixes to prepare adsorption resin/polyethersulfone (AR/PES) membranes by nonsolvent-induced phase separation for plasma separation and middle moleculartoxins absorption. The results show that the static adsorption capacity of AR/PES membrane for lysozyme(a typical mimic of middle molecular toxins) is up to 108.90 mg/g, which is 4 times that of AR. The maximumdynamic adsorption capacity reaches 102.80 mg/g, which is 93.4% of static adsorption. The adsorptionprocess is more consistent with the Langmuir model and the quasi-first-order kinetic model. Thepermeability of bovine serum albumin in simulated blood surpasses 90% and the cattle blood separatedby AR/PES membrane is colorless and transparent. The AR/PES membrane surface presents electronegativeat pH 7.4 and the water wettability is enhanced with the doping amount. No hemolysis and negligibleleakage indicated favorable hemocompatibility. This paper is devoted to providing a strategy forplasma separation and adsorption membranes.

The fast image encryption algorithm based on substitution and diffusion

( Yong Zhang ),( Xiaoyang Jia ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.9

A fast image encryption system based on substitution and diffusion was proposed, which includes one covering process, one substitution process and two diffusion processes. At first, Chen's chaotic system together with an external 256-bit long secret key was used to generate the key streams for image encryption, in which the initial values of Chen's chaotic system were regarded as the public key. Then the plain image was masked by the covering process. After that the resulting image was substituted with the disturbed S-Box of AES. Finally, the substituted image was diffused twice with the add-modulo operations as the core to obtain the cipher image. Simulation analysis and comparison results with AES and some existing image cryptosystems show that the proposed image cryptosystem possesses the merits of fast encryption/decryption speed, good statistical characteristics, strong sensitivity and etc., and can be used as a candidate system of network security communication.

Evaluation of energy correction algorithm for signals of PET in heavy-ion cancer therapy device

Niu, Xiaoyang,Yan, Junwei,Wang, Xiaohui,Yang, Haibo,Ke, Lingyun,Chen, Jinda,Du, Chengming,Zhang, Xiuling,Zhao, Chengxin,Kong, Jie,Su, Hong Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.1

In order to solve the contradiction between requirements of high sampling rate for acquiring accurate energy information of pulses and large amount of data to be processed timely, the method with an algorithm to correct errors caused by reducing the sampling rate is normally used in front-end read-out system, which is conductive to extract accurate energy information from digitized waveform of pulse. The functions and effects of algorithms, which mainly include polynomial fitting with different fitting times, double exponential function fitting under different sampling modes, and integral area algorithm, are analyzed and evaluated, and some meaningful results is presented in this paper. The algorithm described in the paper has been used preliminarily in a prototype system of Positron Emission Tomography (PET) for heavy-ion cancer therapy facility.

Preparation of nano aluminum nitride powders by polymer network method

Ning Zhang,Tingting Fu,Feiyi Yang,Hongmin Kan,Xiaoyang Wang,Haibo Long,Liuyan Wang 한양대학교 세라믹연구소 2014 Journal of Ceramic Processing Research Vol.15 No.2

In this work, aluminum nitrate (Al(NO3)3), active carbon and C12H22O11 were used as raw materials. The nano aluminum nitride powders (AlN) were synthesis by polymer network method. Aluminum nitride (AlN) exhibits high thermal conductivity, low dielectric permittivity and good electric insulativity. It has a very high synthetic temperature, however, results in a high cost. The aim of this investigation is to develop a new method of fabricating ultra-fine AlN powders to lower the synthetic temperature of AlN. The influences of different carbon sources and the synthetic temperature on fabricating AlN powders via polymer network method were investigated, and the mechanism of AlN formation was also identified. The results indicated that as using sucrose (C12H22O11) as the carbon source, the optimum synthetic process condition for fabricating ultrafine AlN powders was at 1500 °C for 2 h. Comparing with the mechanical ball-milling method, the temperature of synthesizing AlN powders was lowered about 100 °C. Furthermore, the size of as-synthesized AlN was finer from 50 nm to 80 nm.

A Multi-objective DCP Model for Bi-Level Resource-Constrained Project Scheduling Problems in Grounding Grid System Project under Hybrid Uncertainty

Zhe Zhang,Ming Liu,Xiaoyang Zhou,Lu Chen 대한토목학회 2016 KSCE JOURNAL OF CIVIL ENGINEERING Vol.20 No.5

Since more elements are involved in the construction projects, the decision making process of Resource-constrained Project Scheduling Problems (RCPSP) cannot be determined by a manager, but multiple level decision makers. This study focuses on the RCPSP in a practical grounding grid system project in Jin’ An Qiao hydropower station, which consider the hierarchical organization structure and hybrid uncertainty environment simultaneously. In this practical RCPSP, the construction contractor is the Upper Level Decision Maker (ULDM), while the outsourcing partner is the Lower Level Decision Maker (LLDM). Considering the operations difficulties and practical decision making process in the RCPSP, a bi-level multi-objective RCPSP model with bi-random coefficients is developed. To deal with the bi-random variables in the model, the Dependent-Chance Programming (DCP) method is introduced and the equivalent crisp model is derived. Subsequently, motivated by the particular nature of model, Bi-level Global-local-neighbor Particle Swarm Optimization Algorithm (BGLN-PSO) is designed to obtain the optimal schedule for grounding grid system project. A practical application is presented to verify the efficiency of proposed bi-level multi-objective RCPSP model and algorithm.