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Xiao, Huapeng,Wang, Jun,Huang, Hongtao,Lu, Linfeng,Lin, Qingfeng,Fan, Zhiyong,Chen, Xiaoyuan,Jeong, Chaehwan,Zhu, Xufei,Li, Dongdong Elsevier 2015 Nano energy Vol.11 No.-
<P><B>Abstract</B></P> <P>Plasmonic thin film solar cells deposited on periodically textured photonic crystal substrates have been extensively studied since the substantially enhanced light absorption. The reduction of parasitic absorption losses in the metal and spacer layers becomes one of the key issues to achieve high efficiency solar cells. Herein, plasmonic amorphous silicon (a-Si:H) flexible thin film solar cells with different thickness of oxide spacer layers are systematically investigated. An increase of the spacer layer thickness leads to an evolution in surface morphology of AZO and final devices. More intriguingly, the increase of spacer layer thickness reduces the absorption in Ag layer while induces more absorption in spacer layer. The highest light absorption in silicon layer is observed as applying 100nm spacer layer, which is further verified by electrical measurements. Our observations demonstrate a versatile and convenient route towards rational design of light harvesting nanostructure for high performance plasmonic solar cells based on a broad range of materials.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Amorphous silicon thin film solar cells are constructed on patterned substrates. </LI> <LI> The devices properties are studied as a function of spacer layer thickness. </LI> <LI> An increase of spacer layer thickness reduces the absorption loss of Ag layer. </LI> <LI> The device with 100nm spacer layer confines more incident light in silicon layer. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
A Novel Olfactory Displays' Scent Dispersing Module
Saad Hameed Abid,Zhiyong Li,Renfa Li,Jumana Waleed 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.1
Olfactory display devices have become a recent demand and trend in human computer interaction, providing a new member in the human computer interaction peripheral devices family. These devices enrich the olfactory sense for the user stimulating him/her by means of scent stimuli in correspondence to an object or an event shown on the visual display. Some researches have been done to cover the design, usage and delivery for the scent to the users, other works covered some analysis on the scent categorization and grouping. In this paper a focus is on the controlled atomization of a liquid based scent material while guaranteeing: speed, intensity, durability, compactness and scalability, these important factors are crucial to build a commercial grade olfactory displays containing a universal, interchangeable and versatile but yet durable scent disparity component to facilitate the realization of olfactory display devices.
Zhiyong Li,Shan Zhao,Xiang-Dong XIN,Bei Zhang,Attaribo Thomas,Asakiya Charles,Kwang Sik Lee,진병래,Zhong-Zheng Gui 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.3
Silkworm (Bombyx mori) pupa protein is one potential source of insect protein for use in food. Immunomodulatory peptides are specific protein fragments that can positively influence human health. Here, we purified a novel immunomodulatory hexapeptide from the alcalase hydrolysate of ultramicro-pretreated silkworm pupa proteinusing Sephadex gel filtration chromatography and reverse-phase high-performance liquid chromatography (RP-HPLC). The peptide sequence was determined by liquid chromatography–electrospray ionization– tandem mass spectrometry (LC-ESI-MS/MS). The results showed that the molecular mass of the purified peptide was 656.17 Da, and the amino acid sequence was Pro-Asn-Pro-Asn-Thr-Asn (PNPNTN). Splenocyte proliferation was 87.35% in the presence of 100 μg/ml of purified peptide. The splenocyte proliferation could be promoted upto 248.4% at 100 μg/ml of PNPNTN after induction by Concanavalin A (Con A). PNPNTN was stable in the presence of the gastrointestinal proteases pepsin and trypsin and at temperatures up to120°C. Taken together, these results show that this novel immunomodulatory hexapeptide from silkworm pupae has potential therapeutic value as an immunomodulatory component of functional food.
Investigating Smartphone Notification: Task Interruptions and User Emotional Reactions
( Zhiyong Li ),( Seunghee Lee ) 한국감성과학회 2023 한국감성과학회 국제학술대회(ICES) Vol.2023 No.-
This study aims to investigate how individuals respond to notifications, exploring the effects of different combinations of auditory cues, visual cues (color), tactile feedback (vibration), and notification frequency within the workplace. We plan to assess participants' reactions, including response time, accuracy, emotions, and perceived intrusiveness via the measurement of physiological patterns by attaching wearable device to participants. The impact of these notifications on participants’ work efficiency will also be measured to better understand the impact that different combinations can have.
Jing Li,Li Zhu,Xiao-Bei Zhan,Min Xu,Chi Chung Lin,Zhiyong Zheng,Wei-Jiang Li 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.3
Endo-β-1,3-glucanase (Endo23) was purifiedfrom a Trichoderma reesei GIMCC 3.498 fermentationbroth using anion exchange and 2-stage size exclusionchromatography. Purification of 44.5× and a 12% recoveryyield of enzyme activity were achieved. The Mw andisoelectric point were estimated to be 24 kDa and 3.85using SDS-PAGE and IEF, respectively. The highestsubstrate specificity was observed for water-insoluble curdlan. The optimal conditions for hydrolyzing curdlan were pH5.0 and 50oC. The main hydrolytic products were glucobioseand glucotriose. Minor amounts of glucose and glucotetraosewere detected. Hg2+, Fe2+, Fe3+, and Sn2+ inhibited thehydrolysis activity of Endo23 at 5 and 50 mM. K+ slightlypromoted Endo23 activity. Endo23 belongs to the categoryEC3.2.1.39. The peptide sequences of Endo23 showedidentity with conserved sequences that typically exist in β-1,3-glucanases of the glycoside hydrolase family. TheEndo23 sequence was partially similar to a hypotheticallignocellulase from Penicillium oxalicum 114-2.
Yang, Yuting,Gao, Huan,Li, Xing,Cao, Zhenhui,Li, Meiquan,Liu, Jianping,Qiao, Yingying,Ma, Li,Zhao, Zhiyong,Pan, Hongbin Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.1
Objective: Temperature could influence protein and amino acid deposition as well as gut microbiota profile and composition. However, the specific effects of ambient temperature on amino acids deposition and gut microbiota composition remain insufficiently understood. Methods: A total of 300 one-day-old Avian broilers were randomly divided into three groups and reared at high, medium, and low temperature (HT, MT, and LT), respectively. Breast muscle and fecal samples were collected for amino acid composition analysis and 16S rRNA gene sequence analysis. Results: Our data showed that compared to the MT group, there was a decrease of muscle leucine and tyrosine (p<0.05), as well as an increase of methionine in the HT group (p<0.05) and a decrease of serine in the LT group. Examination of microbiota shift revealed that at genus level, the relative abundance of Turicibacter and Parabacteroides was increased in the HT group (p<0.05) and that the relative abundances of Pandoraea, Achromobacter, Prevotella, Brevundimonas, and Stenotrophomonas in the LT group were higher than those in the MT group (p<0.05). In addition, there were substantial correlations between microbes and amino acids. In the HT group. Turicibacter was negatively correlated with aspartic acid and tyrosine, whereas Parabacteroides was positively correlated with methionine (p<0.05). In the LT group, there were multiple positive correlations between Achromobacter and arginine, isoleucine or tyrosine; between Prevotella and cysteine or phenylalanine; between Brevundimonas and cysteine; and between Stenotrophomonas and cysteine as well as a negative correlation between Stenotrophomonas and serine. Conclusion: Our findings demonstrated that amino acid content of breast muscle and intestinal microbiota profile was affected by different ambient temperatures. Under heat exposure, augmented abundance of Parabacteroides was correlated with elevated methionine. Low temperature treatment may affect muscle tyrosine content through the regulation of Achromobacter.
Guanfu Liu,Mengying Li,Guosheng Li,Zhiyong Li,Ailian Liu,Renwang Pu,Huizhi Cao,Yijun Liu 대한영상의학회 2018 Korean Journal of Radiology Vol.19 No.1
Objective: To exploit material decomposition analysis in dual-energy spectral computed tomography (CT) to assess the blood supply status of the ground-glass opacity (GGO) in lungs. Materials and Methods: This retrospective study included 48 patients with lung adenocarcinoma, who underwent a contrast-enhanced dual-energy spectral CT scan before treatment (53 GGOs in total). The iodine concentration (IC) and water content (WC) of the GGO, the contralateral and ipsilateral normal lung tissues were measured in the arterial phase (AP) and their differences were analyzed. IC, normalized IC (NIC), and WC values were compared between the pure ground-glass opacity (pGGO) and the mixed ground-glass opacity (mGGO), and between the group of preinvasive lesions and the minimally invasive adenocarcinoma (MIA) and invasive adenocarcinoma (IA) groups. Results: The values of pGGO (IC = 20.9 ± 6.2 mg/mL and WC = 345.1 ± 87.1 mg/mL) and mGGO (IC = 23.8 ± 8.3 mg/mL and WC = 606.8 ± 124.5 mg/mL) in the AP were significantly higher than those of the contralateral normal lung tissues (IC = 15.0 ± 4.9 mg/mL and WC = 156.4 ± 36.8 mg/mL; IC = 16.2 ± 5.7 mg/mL and WC = 169.4 ± 41.0 mg/mL) and ipsilateral normal lung tissues (IC = 15.1 ± 6.2 mg/mL and WC = 156.3 ± 38.8 mg/mL; IC = 15.9 ± 6.0 mg/mL and WC = 174.7 ± 39.2 mg/mL; all p < 0.001). After normalizing the data according to the values of the artery, pGGO (NIC = 0.1 and WC = 345.1 ± 87.1 mg/mL) and mGGO (NIC = 0.2 and WC = 606.8 ± 124.5 mg/mL) were statistically different (p = 0.049 and p < 0.001, respectively), but not for the IC value (p = 0.161). The WC values of the group with preinvasive lesions and MIA (345.4 ± 96.1 mg/mL) and IA (550.1 ± 158.2 mg/mL) were statistically different (p < 0.001). Conclusion: Using dual-energy spectral CT and material decomposition analysis, the IC in GGO can be quantitatively measured which can be an indicator of the blood supply status in the GGO.