Spatial-Temporal Distribution of Soil Salt Crusts in the Taklimakan Desert Highway Shelterbelt of Northwest China

Jianguo Zhang,Xinwen Xu,Jiaqiang Lei,Ying Zhao,Shengyu Li 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

1-methylcyclopropene treatment improves postharvest quality and antioxidant activity of Prunus domestica L. cv. Ximei fruit

Ma Yanyan,Zhang Weida,CHENGSHAOBO,Yang Wanting,Liu Yuxing,Yang Shengyu,Zhang Xinling,Guo Minrui,Chen Guogang 한국원예학회 2022 Horticulture, Environment, and Biotechnology Vol.63 No.6

Prunus domestica L. cv. Ximei fruit perishes quickly due to intense metabolic activity after being harvested. To prolong shelf life and maintain fruit quality, the eff ects of 1-methylcyclopropene (1-MCP) treatment on P. domestica fruit during storage at 4 ± 1 °C were investigated. The results showed that the soluble solid content (SSC), respiratory rate (29.8%), ethylene production (27.2%), anthocyanin content, malonaldehyde content (MDA), hydrogen peroxide content (H 2O2), and superoxide anion activity (O 2·−) of P. domestica fruit were all signifi cantly reduced by 1-MCP treatment (1.0 μL L −1), while the content of ascorbic acid and total phenol, and the activity of SUPEROXIDE DISMUTASE (SOD, 61.3%), CATALASE (CAT, 39.0%), ASCORBATE PEROXIDASE (APX, 23.7%), and PEROXIDASE (POD, 38.0%) increased compared to untreated fruit after 35 days of cold storage. Overall, 1-MCP treatment could maintain high postharvest quality and anti- oxidant activity in P. domestica fruit

Substitution of soybean meal with detoxified Jatropha curcas kernel meal: Effects on performance, nutrient utilization, and meat edibility of growing pigs

Li, Yang,Chen, Ling,Zhang, Yuhui,Wu, Jianmei,Lin, Yan,Fang, Zhengfeng,Che, Lianqiang,Xu, Shengyu,Wu, De Asian Australasian Association of Animal Productio 2018 Animal Bioscience Vol.31 No.6

Objective: The study was conducted to investigate the effects of replacing soybean meal (SBM) with different levels of detoxified Jatropha curcas kernel meal (DJM) in growing pig diets on growth performance, nutrients digestibility and meat edibility. Methods: A total of 144 pigs with initial body weight of $20.47{\pm}1.44kg$, were randomly allocated to 6 dietary treatments with 6 replications per treatment and 4 pigs per replication for a period of 79 days. Six diets (DJM0, DJM15, DJM30, DJM45, DJM60, and DJM75) were formulated using DJM to replace 0%, 15%, 30%, 45%, 60%, and 75% of SBM. From d 37 to 42, feces and urine were total collected from six barrows in each treatment. At day 79, thirty-six pigs were slaughtered for sampling. The feed intake and weight gain were recorded, while the intestinal morphology, digestive enzyme activities, nutrient digestibility and the content of residual phorbol esters in muscles were determined. Results: The results showed that increasing the replacement of SBM with DJM decreased the parameters including body weight, average daily gain, average daily feed intake, gain-to-feed ratio, weight and villus heights of duodenum, villus height and villus height/crypt depth of jejunum, digestive enzymes (protease, amylase, lipase, and trypsin) activities, and nutrients digestibility (nitrogen deposition, digestibility of nitrogen, energy digestibility, and total nitrogen utilization) (linear, p<0.05; quadratic, p<0.05) and there was no significant difference among DJM0, DJM15, and DJM30 in all measured indices. The highest diarrhea morbidity was observed in DJM75 (p<0.05). Phorbol esters were not detected in pig muscle tissues. Conclusion: The DJM was a good protein source for pigs, and could be used to replace SBM up to 30% (diet phorbol esters concentration at 5.5 mg/kg) in growing pig diets with no detrimental impacts on growth performance, nutrient utilization, and meat edibility.

Directional Water Transport in Fabrics by Varying Yarn Coordination and Texture Design

Yaping Li,Jie Fan,Shengyu Zhang,Zhaopeng Xia,Liang Wang,Yong Liu 한국섬유공학회 2023 Fibers and polymers Vol.24 No.2

Directional water transport fabric plays a pivotal role in personal thermal management. However, it has remained a greatchallenge to reach the target only by texture design and yarn coordination. Here, we reported a trilayered woven fabric (TWF)with directional water transport performance by combining a hierarchical microporous structure and asymmetric wettability. The TWF is composed of interweaved plain weave layer (PWL), basket weave layer (BWL) and float layer (FL), whichprovides the continuous water transfer paths by the continuous warp yarns that move back and forth in the thickness directionof the fabric. The asymmetric structure of the TWF endows the fabric with excellent directional water management property,which can be tailored by the fineness and the wetting state of weft yarn in the three layers, and the groove structure on thesurface of the PWL. The resulting TWF exhibited a high directional water transport index R (435%). The mechanism for thedirectional water transport of the BWF was investigated by analyzing the capillary force, hydrostatic pressure and hydrophobicforce. Moreover, the universality of the fabric design approach was verified by two kinds of bilayered woven fabrics (BWFs)which have an analogous texture to the TWF. Therefore, the reported method for designing directional water transport fabricthrew light on developing eco-friendly water management textiles with good durability for demanding situations.

Prebiotic Potential of Xylooligosaccharides Derived from Corn Cobs and Their In Vitro Antioxidant Activity When Combined with Lactobacillus

( Xiuhua Yu ),( Jianyuan Yin ),( Lin Li ),( Chang Luan ),( Jian Zhang ),( Chunfang Zhao ),( Shengyu Li ) 한국미생물 · 생명공학회 2015 Journal of microbiology and biotechnology Vol.25 No.7

In the present work, the in vitro prebiotic activity of xylooligosaccharides (XOS) derived from corn cobs combined with Lactobacillus plantarum, a probiotic microorganism, was determined.These probiotics exhibited different growth characteristics depending on strain specificity. L. plantarum S2 cells were denser and their growth rates were higher when cultured on XOS. Acetate was found to be the major short-chain fatty acid produced as the end-product of fermentation, and its amount varied from 1.50 to 1.78 mg/ml. The antimicrobial activity of XOS combined with L. plantarum S2 was determined against gastrointestinal pathogens. The results showed that XOS proved to be an effective substrate, enhancing antimicrobial activity for L. plantarum S2. In vivo evaluation of the influence of XOS and L. plantarum S2, used both alone and together, on the intestinal microbiota in a mouse model showed that XOS combined with L. plantarum S2 could increase the viable lactobacilli and bifidobacteria in mice feces and decrease the viable Enterococcus, Enterobacter, and Clostridia spp. Furthermore, in the in vitro antioxidant assay, XOS combined with L. plantarum S2 possessed significant 2,2-diphenyl-1- picrylhydrazyl, 2,2’-azino-bis, and superoxide anion radical-scavenging activities, and the combinations showed better antioxidant activity than either XOS or L. plantarum S2 alone.

R3: A Lightweight Reactive Ring based Routing Protocol for Wireless Sensor Networks with Mobile Sinks

( Sheng Yu ),( Baoxian Zhang ),( Zheng Yao ),( Cheng Li ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.12

Designing efficient routing protocols for a wireless sensor network with mobile sinks (mWSN) is a challenging task since the network topology and data paths change frequently as sink nodes move. In this paper, we design a novel lightweight reactive ring based routing protocol called R3, which removes the need of proactively maintaining data paths to mobile sinks as they move in the network. To achieve high packet delivery ratio and low transmission cost, R3 combines ring based forwarding and trail based forwarding together. To support efficient ring based forwarding, we build a ring based structure for a network in a way such that each node in the network can easily obtain its ring ID and virtual angle information. For this purpose, we artificially create a virtual hole in the central area of the network and accordingly find a shortest cycled path enclosing the hole, which serves as base ring and is used for generating the remaining ring based structure. We accordingly present the detailed design description for R3, which only requires each node to keep very limited routing information. We derive the communication overhead by ring based forwarding. Extensive simulation results show that R3 can achieve high routing performance as compared with existing work.