Chen Lin Chen - Academia.edu (original) (raw)

Papers by Chen Lin Chen

Research paper thumbnail of A Novel Hybrid Plasmonic Resonator With High Quality Factor and Large Free Spectral Range

IEEE Sensors Journal, Jan 15, 2021

Whispering gallery (WG) mode resonators are experiencing a surge in the application of biosensing... more Whispering gallery (WG) mode resonators are experiencing a surge in the application of biosensing, attributing to high speed, flexibility, low cost, multi-analyte detection and compatibility with extra optical elements. The decoration of localized surface plasmon nanostructures to a dielectric WG mode resonator offers unprecedented sensitivity compared with a pure dielectric resonator. However, at the moment, the experimental quality (Q) factors of dielectric micro rings always achieve the value of 104 to 106, whereas the only reported hybrid counterpart possesses the Q factor of 300 and most studies are focused on the theoretical design. The resulting experimental detection limits (DLs) are in the range of 10−6–10–5 RIU, which is one order of magnitude lower than the best value of hybrid resonators. The hybrid resonator should possess the experimental Q factor of 5000 to 10000 so as to match their purely dielectric rivals. We demonstrated a novel hybrid plasmonic WG mode resonator working on the multimode resonance mechanism. Under the condition of the multimode resonance, predominant field was distributed on the waveguide surface resulting in an improved bulk sensitivity. The multimode resonance promoted satisfied resonance frequency reduced and thus a high Q factor and a low value of DL could be achieved in the experiment. Afterwards, the resonator was made via micro- and nano- fabrication. It was shown that the experimental Q factor of 5685 and the free spectral range larger than 35 nm, which were superior to the previously reported value to our best knowledge. Hypoglycemia and Hyperglycemia will produce noticeable organ damage over time. Early detection of glucose concentration is crucial for clinical diagnosis. The proposed resonator was used for the detection of glucose solution. The experimental sensitivity was 428 nm/RIU and the DL was 1.31times10−51.31 \times 10^{ - 5}1.31times10−5 RIU. The device with a footprint of 1500,mutextmtimes12.7,mutextm1500\, \mu\text{m} \times 12.7\, \mu\text{m} 1500,mutextmtimes12.7,mutextm , is able to integrate with other optical elements and developed as a commodity in the future.

Research paper thumbnail of Reactions of Lignin with Cyanamide Activated Hydrogen Peroxide. Part 1. The Degradation of Lignin Model Compounds

Holzforschung, 1998

The oxidation of pine kraft lignin by alkaline hydrogen peroxide and cyanamide activated hydrogen... more The oxidation of pine kraft lignin by alkaline hydrogen peroxide and cyanamide activated hydrogen peroxide was studied. Over 70 % of the kraft lignin was degraded and solublized in the presence of cyanamide as compared to less than 20 % by hydrogen peroxide alone. A large decrease in the phenolic hydroxyl and methoxyl content, as well as an increase in the carboxylic acid content was also observed in the insoluble residue. Analyses of the low molecular weight degradation products revealed extensive oxidation of the kraft lignin had occurred, consistent with the ring-opening reactions observed in our previous studies using lignin model compounds.

Research paper thumbnail of Association of Serum 25-Hydroxyvitamin D Concentrations With All-Cause and Cause-Specific Mortality Among Individuals With Diabetes

Diabetes Care, Nov 9, 2020

The evidence regarding vitamin D status and mortality among people with diabetes is scarce. This ... more The evidence regarding vitamin D status and mortality among people with diabetes is scarce. This study aimed to examine the association of serum 25-hydroxyvitamin D [25(OH)D] concentrations with all-cause and cause-specific mortality among adults with diabetes. RESEARCH DESIGN AND METHODS This study included 6,329 adults with diabetes from the Third National Health and Nutrition Examination Survey (NHANES III) and NHANES 2001-2014. Death outcomes were ascertained by linkage to National Death Index records through 31 December 2015. Cox proportional hazards models were used to estimate hazard ratios (HR) and 95% CIs for mortality from all causes, cardiovascular disease (CVD), and cancer. RESULTS The weighted mean (95% CI) level of serum 25(OH)D was 57.7 (56.6, 58.8) nmol/L, and 46.6% had deficient vitamin D (<50 nmol/L [20 ng/mL]). Higher serum 25(OH)D levels were significantly associated with lower levels of glucose, insulin, HOMA of insulin resistance, HbA 1c , blood lipids, and C-reactive protein at baseline (all P trend < 0.05). During 55,126 person-years of follow-up, 2,056 deaths were documented, including 605 CVD deaths and 309 cancer deaths. After multivariate adjustment, higher serum 25(OH)D levels were significantly and linearly associated with lower all-cause and CVD mortality: there was a 31% reduced risk of all-cause mortality and a 38% reduced risk of CVD mortality per one-unit increment in natural logtransformed 25(OH)D (both P < 0.001). Compared with participants with 25(OH)D <25 nmol/L, the multivariate-adjusted HRs and 95% CI for participants with 25(OH)D >75 nmol/L were 0.59 (0.43, 0.83) for all-cause mortality (P trend 5 0.003), 0.50 (0.29, 0.86) for CVD mortality (P trend 5 0.02), and 0.49 (0.23, 1.04) for cancer mortality (P trend 5 0.12). CONCLUSIONS Higher serum 25(OH)D levels were significantly associated with lower all-cause and CVD mortality. These findings suggest that maintaining adequate vitamin D status may lower mortality risk in individuals with diabetes.

Research paper thumbnail of Associations of healthy lifestyle and socioeconomic status with mortality and incident cardiovascular disease: two prospective cohort studies

Research paper thumbnail of Optical biosensors: an exhaustive and comprehensive review

Analyst, 2020

Optical biosensors have exhibited worthwhile performance in detecting biological systems and prom... more Optical biosensors have exhibited worthwhile performance in detecting biological systems and promoting significant advances in clinical diagnostics, drug discovery, food process control, and environmental monitoring.

Research paper thumbnail of Dietary Intakes of Eggs and Cholesterol in Relation to All‐Cause and Heart Disease Mortality: A Prospective Cohort Study

Journal of the American Heart Association, May 18, 2020

Background The aim of this study was to identify associations between dietary intakes of eggs and... more Background The aim of this study was to identify associations between dietary intakes of eggs and cholesterol and all‐cause and heart disease mortality in a US population. Methods and Results Data from the National Health and Nutrition Examination Survey 1999–2014 were used in this study, which included 37 121 participants ≥20 years of age. Dietary information was assessed via 24‐hour dietary recalls at baseline. Mortality status was documented until December 31, 2015. Cox proportional hazards models were used to examine the associations between dietary intakes of eggs and cholesterol and all‐cause and heart disease mortality. During a median follow‐up of 7.8 years, 4991 deaths were documented, including 870 deaths from heart disease. No significant association was observed between additional daily consumption of half an egg and all‐cause mortality (multivariable‐adjusted hazard ratio, 1.04; 95% CI, 0.96–1.13), or heart disease mortality (0.96; 0.80–1.14). Each 50‐mg/day increase of cholesterol intake was inversely associated with all‐cause mortality among participants with daily intake &lt;250 mg (0.87; 0.77–0.98), but positively associated with all‐cause mortality among participants with daily intake ≥250 mg (1.07; 1.01–1.12). No significant association was found between dietary cholesterol intake and heart disease mortality. Conclusions No significant association was found between egg consumption and mortality in US adults. The association between dietary cholesterol intake and all‐cause mortality depended on the baseline intake levels, with an inverse association in those with lower intake levels (&lt;250 mg/day) but a positive association in those with higher intake levels (≥250 mg/day).

Research paper thumbnail of <scp>COVID</scp> ‐19 exposure, pandemic‐related appraisals, coping strategies, and psychological symptoms among the frontline medical staff and gender differences in coping processes

Applied Cognitive Psychology, Nov 30, 2021

This study sought to explore the effects of COVID‐19 exposure, pandemic‐related appraisals and co... more This study sought to explore the effects of COVID‐19 exposure, pandemic‐related appraisals and coping strategies on psychological symptoms among the front‐line healthcare workers based on the transactional theory of stress and coping. A cross‐sectional study was conducted in a Wuhan hospital designated for inpatients with COVID‐19, assessing COVID‐19 exposure (whether or not exposed to confirmed patients at workplace), psychological symptoms, appraisals, and coping strategies in 311 participants. Results revealed that the pandemic markedly affected healthcare workers' mental well‐being through appraisal and coping, with 38.9% reporting high levels of psychological symptoms. Primary appraisal related closely with COVID‐19 exposure, especially in female, while secondary appraisal was associated with problem‐focused coping. Both problem‐focused and emotion‐focused coping had a protective effect against psychological symptoms, but also showed gender differences in its relations with other variables. These findings could potentially benefit to enrich relevant theories, and to develop psychological programs for future epidemics.

Research paper thumbnail of (20S) Ginsenoside Rh2 Exerts Its Anti-Tumor Effect by Disrupting the HSP90A-Cdc37 System in Human Liver Cancer Cells

International Journal of Molecular Sciences, Dec 6, 2021

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Improved energy storage performances of solution-processable ferroelectric polymer by modulating of microscopic and mesoscopic structure

Composites Part B-engineering, Oct 1, 2020

Improved energy storage performances of solution-processable ferroelectric polymer by modulating ... more Improved energy storage performances of solution-processable ferroelectric polymer by modulating of microscopic and mesoscopic structure, Composites Part B (2020), doi:

Research paper thumbnail of Reactions of Lignin with Cyanamide Activated Hydrogen Peroxide. Part 2. The Degradation Mechanism of Phenolic Lignin Model Compounds

Holzforschung, 1998

The oxidation of pine kraft lignin by alkaline hydrogen peroxide and cyanamide activated hydrogen... more The oxidation of pine kraft lignin by alkaline hydrogen peroxide and cyanamide activated hydrogen peroxide was studied. Over 70 % of the kraft lignin was degraded and solublized in the presence of cyanamide as compared to less than 20 % by hydrogen peroxide alone. A large decrease in the phenolic hydroxyl and methoxyl content, as well as an increase in the carboxylic acid content was also observed in the insoluble residue. Analyses of the low molecular weight degradation products revealed extensive oxidation of the kraft lignin had occurred, consistent with the ring-opening reactions observed in our previous studies using lignin model compounds.

Research paper thumbnail of Research of the Mechanical Properties for Lazurite with an Open-Type Modeling

Applied Mechanics and Materials, Jun 1, 2012

This study employed a new modeling technology for lazurite. The related mechanical properties are... more This study employed a new modeling technology for lazurite. The related mechanical properties are explored, including the surface roughness, fragility and its morphology. It is found that the properties were improved; for example, the average roughness is reduced from 10.93m to 0.93m and the toughness is increased. We attribute the increase of toughness to a fine morphology with the new technology. Also it cost down 72%.

Research paper thumbnail of Mirror Symmetry Breaking and Absolute Configuration Correlations of Fe(III) Complexes with Achiral Substituted o-Iminobenzosemiquinonato Ligands

Acta Physico-Chimica Sinica

A pair of chiral o-iminobenzosemiquinonato Fe(III) complexes, Λ-mer-[Fe(L ISQ)3] and Δ-mer-[Fe(L ... more A pair of chiral o-iminobenzosemiquinonato Fe(III) complexes, Λ-mer-[Fe(L ISQ)3] and Δ-mer-[Fe(L ISQ)3] (L ISQ : 2-phenylimino-4,6-di-tert-butylphenol, mer : meridian configuration), were synthesized from 2-anilino-4,6-di-tert-butylphenol (H2L) and FeCl2•4H2O. Their absolute configurations were determined by single crystal X-ray diffraction (XRD) and solid-state circular dichroism (CD) spectra (the same single crystal for XRD was dispersed in KCl). Correlations between the absolute configurations of the chiral-atmetal o-iminobenzosemiquinonato M(III) complexes [M(L ISQ)3] (M=Cr, Fe, Co) and their solid-state CD spectra were also established. Comparison between solid-state CD spectra of the bulk samples from 10 different syntheses and their single crystals were thoroughly analyzed. The solid-state CD spectra of the powdered samples from 10 different crystallizations of one product were characterized. These studies indicated that mirror symmetry breaking (MSB) occurred during the crystallization process of the Fe(III) complexes and their enantiomeric excess (ee) values were between 15% and 100%.

Research paper thumbnail of Multimodal and Multispectral Imaging for Chronic Pressure Ulcer Assessment

Proceedings of the 2nd International Conference on Biomedical Signal and Image Processing

The wound care management is critical for patients with chronic ulcers, and many treatments have ... more The wound care management is critical for patients with chronic ulcers, and many treatments have been proposed to facilitate the recovery. We propose to use four optical imaging technologies, polarizing visible light, 650nm red light, 940nm near infrared, and 8-12μm long wave thermal infrared imaging, to monitor the ulcer status. Detailed imaging setup is reported and the preliminary results show that several physiological features can be extracted via the multimodal imaging. More clinical data will be collected to establish sufficient statistics to determine the prognostic biomarkers. The goal of such imaging and feature extraction is to indicate whether an ulcer is developing, infected, or recovered before significantly visible change appears.

Research paper thumbnail of Construction of MoS2/graphite/C3N4 Ternary Photocatalytic System Through Communicating Electron

Journal of the chemical society of pakistan

A MoS2/graphite/C3N4 ternary photocatalytic material (MGC catalyst) was successfully synthesized,... more A MoS2/graphite/C3N4 ternary photocatalytic material (MGC catalyst) was successfully synthesized, characterized, and applied to the photodegradation of Methylene Blue (MB). In addition, the photocatalytic mechanism of MGC was illustrated through modern characterization technology and density functional theory (DFT) computation. The findings of characterization (XRD, SEM-EDX, UV-Vis, XPS) confirmed that MGC was a composite photocatalyst of C3N4-graphite-MoS2 ternary structure, and displayed excellent visible light absorption performance. MGC photocatalyst exhibited the highest degradation efficiencies of MB than that of C3N4 and MoS2 catalyst, and it effectively improved the removal of pollutant. Also, the first-order reaction model suitably described the photocatalytic reaction process. The recycling experiments proved that MGC catalyst possessed remarkable photocatalytic stability in the degradation activities of MB, and the morphology maintained stable after three times of reusing...

Research paper thumbnail of A Self-Powered Energy-Saving Epidemic Prevention Tent

Journal of Electronic Research and Application

The current situation of the epidemic is complex and changeable. Under the China adherence to the... more The current situation of the epidemic is complex and changeable. Under the China adherence to the “dynamic zero clearance,” epidemic prevention and control is closely related to all walks of life, and epidemic prevention awning has become one of the essential basic epidemic prevention facilities. However, most of the epidemic awnings are manufactured for the isolation and protection from wind and rain, which could not meet the needs of electricity allocation during emergencies. Therefore, our goal is to design a new energy-saving epidemic prevention tent that is green, stable, and easy to shrink. It is equipped with multiple energy storage and multivariate methods to achieve self-supply of electric energy. First the “1+1” arrangement design of solar power panels on the anti-epidemic tent and pressure power panels combined with the design of pressure power panels under the tent can receive various energy inputs. At the same time, retractable brackets are designed under the four pilla...

Research paper thumbnail of Driving Behavior Recognition Algorithm Combining Attention Mechanism and Lightweight Network

Entropy, Jul 16, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Masked Spatial-Spectral Autoencoders Are Excellent Hyperspectral Defenders

arXiv (Cornell University), Jul 15, 2022

Deep learning methodology contributes a lot to the development of hyperspectral image (HSI) analy... more Deep learning methodology contributes a lot to the development of hyperspectral image (HSI) analysis community. However, it also makes HSI analysis systems vulnerable to adversarial attacks. To this end, we propose a masked spatial-spectral autoencoder (MSSA) in this paper under self-supervised learning theory, for enhancing the robustness of HSI analysis systems. First, a masked sequence attention learning module is conducted to promote the inherent robustness of HSI analysis systems along spectral channel. Then, we develop a graph convolutional network with learnable graph structure to establish global pixelwise combinations. In this way, the attack effect would be dispersed by all the related pixels among each combination, and a better defense performance is achievable in spatial aspect. Finally, to improve the defense transferability and address the problem of limited labelled samples, MSSA employs spectra reconstruction as a pretext task and fits the datasets in a self-supervised manner. Comprehensive experiments over three benchmarks verify the effectiveness of MSSA in comparison with the state-of-the-art hyperspectral classification methods and representative adversarial defense strategies.

Research paper thumbnail of Stabilizing Brillouin random laser with photon localization by feedback of distributed random fiber grating array

Optics Express

Strong scattering random media can localize light and extend photon lifetime through multiple sca... more Strong scattering random media can localize light and extend photon lifetime through multiple scattering, which offers opportunities for stabilizing random lasers. Here, we demonstrate a frequency stabilized Brillouin random laser with high coherence enabled by photon localization in random fiber grating array (RFGA). Photon trapping is realized due to wave interference in multi-scattering Fabry–Pérot (FP) cavities between random fiber gratings enabling light localization to prolong photon lifetime. The formation of the high finesse peaks of RFGA suppresses multi-longitudinal modes, which offers single-mode operation at high pump power. The RFGA distributed feedback-based Brillouin random fiber laser (BRFL) maintains a small frequency drift with the pump laser (a phase-locked laser with a linewidth of 100 Hz) at 51 kHz/s for a total change of 620 kHz over 12 s. Note there is no locking between the two lasers, and the beat frequency is measured by the optical heterodyne method. The c...

Research paper thumbnail of Distributed temperature profile in hydrogen flame measured by telecom fiber and its durability under flame by OFDR

Optics Express

The distributed temperature profile of hydrogen flame based on optical frequency-domain reflectom... more The distributed temperature profile of hydrogen flame based on optical frequency-domain reflectometry (OFDR) was experimentally demonstrated for the first time. Spatial temperature field at different flow rate of H2 flame was monitored by OFDR via a telecom fiber (Corning SMF-28, CPC6) inside the flame over seconds, and the highest temperature is on the sides of center flame separated by ∼1.4mm with difference of 140∼190°C over the flame dimension of 2.5 mm above 900°C. Uniformity level of temperature is studied by varying the distance between fiber and tube entrance, and the largest uniform region over 1-millimeter length of fiber is obtained. Rayleigh scatters correlation coefficient decreases with temperature to 90% around 400°C, further reduces to 70% about 800°C, and 50% roughly at 1000°C. It indicates that a nonlinear thermal sensitivity of SMF is expected for temperature higher than 400°C with OFDR measurement. The durability of single-mode fiber under H2 flame is studied via...

Research paper thumbnail of Design and Multiobjective Optimization of Green Closed-Loop Manufacturing-Recycling Network Considering Raw Material Attribute

Processes

Regarding decision planning in the electronic manufacturing industry, this paper designs a green ... more Regarding decision planning in the electronic manufacturing industry, this paper designs a green closed-loop manufacturing-recycling network for multiperiod production planning for multiple products. The network considers the tradeoff between production costs and environmental pollution induced by production scraps. Therefore, a mixed integer programming model with a dual objective is designed to achieve environmental protection and reduce production costs through resource recovery and utilization. At the same time, the recycled materials are considered to be treated, not entirely new, which could affect the manufacturing qualified rate. Thus, material attributes are proposed to distinguish new raw materials from recycled (second-hand) ones through the closed-loop manufacturing-recycling process to enhance the manufacturing qualified rate. In order to solve the dual-objective optimization model and realize optimal decisions, an epsilon constraint is designed to generate a nonextreme...

Research paper thumbnail of A Novel Hybrid Plasmonic Resonator With High Quality Factor and Large Free Spectral Range

IEEE Sensors Journal, Jan 15, 2021

Whispering gallery (WG) mode resonators are experiencing a surge in the application of biosensing... more Whispering gallery (WG) mode resonators are experiencing a surge in the application of biosensing, attributing to high speed, flexibility, low cost, multi-analyte detection and compatibility with extra optical elements. The decoration of localized surface plasmon nanostructures to a dielectric WG mode resonator offers unprecedented sensitivity compared with a pure dielectric resonator. However, at the moment, the experimental quality (Q) factors of dielectric micro rings always achieve the value of 104 to 106, whereas the only reported hybrid counterpart possesses the Q factor of 300 and most studies are focused on the theoretical design. The resulting experimental detection limits (DLs) are in the range of 10−6–10–5 RIU, which is one order of magnitude lower than the best value of hybrid resonators. The hybrid resonator should possess the experimental Q factor of 5000 to 10000 so as to match their purely dielectric rivals. We demonstrated a novel hybrid plasmonic WG mode resonator working on the multimode resonance mechanism. Under the condition of the multimode resonance, predominant field was distributed on the waveguide surface resulting in an improved bulk sensitivity. The multimode resonance promoted satisfied resonance frequency reduced and thus a high Q factor and a low value of DL could be achieved in the experiment. Afterwards, the resonator was made via micro- and nano- fabrication. It was shown that the experimental Q factor of 5685 and the free spectral range larger than 35 nm, which were superior to the previously reported value to our best knowledge. Hypoglycemia and Hyperglycemia will produce noticeable organ damage over time. Early detection of glucose concentration is crucial for clinical diagnosis. The proposed resonator was used for the detection of glucose solution. The experimental sensitivity was 428 nm/RIU and the DL was 1.31times10−51.31 \times 10^{ - 5}1.31times10−5 RIU. The device with a footprint of 1500,mutextmtimes12.7,mutextm1500\, \mu\text{m} \times 12.7\, \mu\text{m} 1500,mutextmtimes12.7,mutextm , is able to integrate with other optical elements and developed as a commodity in the future.

Research paper thumbnail of Reactions of Lignin with Cyanamide Activated Hydrogen Peroxide. Part 1. The Degradation of Lignin Model Compounds

Holzforschung, 1998

The oxidation of pine kraft lignin by alkaline hydrogen peroxide and cyanamide activated hydrogen... more The oxidation of pine kraft lignin by alkaline hydrogen peroxide and cyanamide activated hydrogen peroxide was studied. Over 70 % of the kraft lignin was degraded and solublized in the presence of cyanamide as compared to less than 20 % by hydrogen peroxide alone. A large decrease in the phenolic hydroxyl and methoxyl content, as well as an increase in the carboxylic acid content was also observed in the insoluble residue. Analyses of the low molecular weight degradation products revealed extensive oxidation of the kraft lignin had occurred, consistent with the ring-opening reactions observed in our previous studies using lignin model compounds.

Research paper thumbnail of Association of Serum 25-Hydroxyvitamin D Concentrations With All-Cause and Cause-Specific Mortality Among Individuals With Diabetes

Diabetes Care, Nov 9, 2020

The evidence regarding vitamin D status and mortality among people with diabetes is scarce. This ... more The evidence regarding vitamin D status and mortality among people with diabetes is scarce. This study aimed to examine the association of serum 25-hydroxyvitamin D [25(OH)D] concentrations with all-cause and cause-specific mortality among adults with diabetes. RESEARCH DESIGN AND METHODS This study included 6,329 adults with diabetes from the Third National Health and Nutrition Examination Survey (NHANES III) and NHANES 2001-2014. Death outcomes were ascertained by linkage to National Death Index records through 31 December 2015. Cox proportional hazards models were used to estimate hazard ratios (HR) and 95% CIs for mortality from all causes, cardiovascular disease (CVD), and cancer. RESULTS The weighted mean (95% CI) level of serum 25(OH)D was 57.7 (56.6, 58.8) nmol/L, and 46.6% had deficient vitamin D (<50 nmol/L [20 ng/mL]). Higher serum 25(OH)D levels were significantly associated with lower levels of glucose, insulin, HOMA of insulin resistance, HbA 1c , blood lipids, and C-reactive protein at baseline (all P trend < 0.05). During 55,126 person-years of follow-up, 2,056 deaths were documented, including 605 CVD deaths and 309 cancer deaths. After multivariate adjustment, higher serum 25(OH)D levels were significantly and linearly associated with lower all-cause and CVD mortality: there was a 31% reduced risk of all-cause mortality and a 38% reduced risk of CVD mortality per one-unit increment in natural logtransformed 25(OH)D (both P < 0.001). Compared with participants with 25(OH)D <25 nmol/L, the multivariate-adjusted HRs and 95% CI for participants with 25(OH)D >75 nmol/L were 0.59 (0.43, 0.83) for all-cause mortality (P trend 5 0.003), 0.50 (0.29, 0.86) for CVD mortality (P trend 5 0.02), and 0.49 (0.23, 1.04) for cancer mortality (P trend 5 0.12). CONCLUSIONS Higher serum 25(OH)D levels were significantly associated with lower all-cause and CVD mortality. These findings suggest that maintaining adequate vitamin D status may lower mortality risk in individuals with diabetes.

Research paper thumbnail of Associations of healthy lifestyle and socioeconomic status with mortality and incident cardiovascular disease: two prospective cohort studies

Research paper thumbnail of Optical biosensors: an exhaustive and comprehensive review

Analyst, 2020

Optical biosensors have exhibited worthwhile performance in detecting biological systems and prom... more Optical biosensors have exhibited worthwhile performance in detecting biological systems and promoting significant advances in clinical diagnostics, drug discovery, food process control, and environmental monitoring.

Research paper thumbnail of Dietary Intakes of Eggs and Cholesterol in Relation to All‐Cause and Heart Disease Mortality: A Prospective Cohort Study

Journal of the American Heart Association, May 18, 2020

Background The aim of this study was to identify associations between dietary intakes of eggs and... more Background The aim of this study was to identify associations between dietary intakes of eggs and cholesterol and all‐cause and heart disease mortality in a US population. Methods and Results Data from the National Health and Nutrition Examination Survey 1999–2014 were used in this study, which included 37 121 participants ≥20 years of age. Dietary information was assessed via 24‐hour dietary recalls at baseline. Mortality status was documented until December 31, 2015. Cox proportional hazards models were used to examine the associations between dietary intakes of eggs and cholesterol and all‐cause and heart disease mortality. During a median follow‐up of 7.8 years, 4991 deaths were documented, including 870 deaths from heart disease. No significant association was observed between additional daily consumption of half an egg and all‐cause mortality (multivariable‐adjusted hazard ratio, 1.04; 95% CI, 0.96–1.13), or heart disease mortality (0.96; 0.80–1.14). Each 50‐mg/day increase of cholesterol intake was inversely associated with all‐cause mortality among participants with daily intake &lt;250 mg (0.87; 0.77–0.98), but positively associated with all‐cause mortality among participants with daily intake ≥250 mg (1.07; 1.01–1.12). No significant association was found between dietary cholesterol intake and heart disease mortality. Conclusions No significant association was found between egg consumption and mortality in US adults. The association between dietary cholesterol intake and all‐cause mortality depended on the baseline intake levels, with an inverse association in those with lower intake levels (&lt;250 mg/day) but a positive association in those with higher intake levels (≥250 mg/day).

Research paper thumbnail of <scp>COVID</scp> ‐19 exposure, pandemic‐related appraisals, coping strategies, and psychological symptoms among the frontline medical staff and gender differences in coping processes

Applied Cognitive Psychology, Nov 30, 2021

This study sought to explore the effects of COVID‐19 exposure, pandemic‐related appraisals and co... more This study sought to explore the effects of COVID‐19 exposure, pandemic‐related appraisals and coping strategies on psychological symptoms among the front‐line healthcare workers based on the transactional theory of stress and coping. A cross‐sectional study was conducted in a Wuhan hospital designated for inpatients with COVID‐19, assessing COVID‐19 exposure (whether or not exposed to confirmed patients at workplace), psychological symptoms, appraisals, and coping strategies in 311 participants. Results revealed that the pandemic markedly affected healthcare workers' mental well‐being through appraisal and coping, with 38.9% reporting high levels of psychological symptoms. Primary appraisal related closely with COVID‐19 exposure, especially in female, while secondary appraisal was associated with problem‐focused coping. Both problem‐focused and emotion‐focused coping had a protective effect against psychological symptoms, but also showed gender differences in its relations with other variables. These findings could potentially benefit to enrich relevant theories, and to develop psychological programs for future epidemics.

Research paper thumbnail of (20S) Ginsenoside Rh2 Exerts Its Anti-Tumor Effect by Disrupting the HSP90A-Cdc37 System in Human Liver Cancer Cells

International Journal of Molecular Sciences, Dec 6, 2021

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Improved energy storage performances of solution-processable ferroelectric polymer by modulating of microscopic and mesoscopic structure

Composites Part B-engineering, Oct 1, 2020

Improved energy storage performances of solution-processable ferroelectric polymer by modulating ... more Improved energy storage performances of solution-processable ferroelectric polymer by modulating of microscopic and mesoscopic structure, Composites Part B (2020), doi:

Research paper thumbnail of Reactions of Lignin with Cyanamide Activated Hydrogen Peroxide. Part 2. The Degradation Mechanism of Phenolic Lignin Model Compounds

Holzforschung, 1998

The oxidation of pine kraft lignin by alkaline hydrogen peroxide and cyanamide activated hydrogen... more The oxidation of pine kraft lignin by alkaline hydrogen peroxide and cyanamide activated hydrogen peroxide was studied. Over 70 % of the kraft lignin was degraded and solublized in the presence of cyanamide as compared to less than 20 % by hydrogen peroxide alone. A large decrease in the phenolic hydroxyl and methoxyl content, as well as an increase in the carboxylic acid content was also observed in the insoluble residue. Analyses of the low molecular weight degradation products revealed extensive oxidation of the kraft lignin had occurred, consistent with the ring-opening reactions observed in our previous studies using lignin model compounds.

Research paper thumbnail of Research of the Mechanical Properties for Lazurite with an Open-Type Modeling

Applied Mechanics and Materials, Jun 1, 2012

This study employed a new modeling technology for lazurite. The related mechanical properties are... more This study employed a new modeling technology for lazurite. The related mechanical properties are explored, including the surface roughness, fragility and its morphology. It is found that the properties were improved; for example, the average roughness is reduced from 10.93m to 0.93m and the toughness is increased. We attribute the increase of toughness to a fine morphology with the new technology. Also it cost down 72%.

Research paper thumbnail of Mirror Symmetry Breaking and Absolute Configuration Correlations of Fe(III) Complexes with Achiral Substituted o-Iminobenzosemiquinonato Ligands

Acta Physico-Chimica Sinica

A pair of chiral o-iminobenzosemiquinonato Fe(III) complexes, Λ-mer-[Fe(L ISQ)3] and Δ-mer-[Fe(L ... more A pair of chiral o-iminobenzosemiquinonato Fe(III) complexes, Λ-mer-[Fe(L ISQ)3] and Δ-mer-[Fe(L ISQ)3] (L ISQ : 2-phenylimino-4,6-di-tert-butylphenol, mer : meridian configuration), were synthesized from 2-anilino-4,6-di-tert-butylphenol (H2L) and FeCl2•4H2O. Their absolute configurations were determined by single crystal X-ray diffraction (XRD) and solid-state circular dichroism (CD) spectra (the same single crystal for XRD was dispersed in KCl). Correlations between the absolute configurations of the chiral-atmetal o-iminobenzosemiquinonato M(III) complexes [M(L ISQ)3] (M=Cr, Fe, Co) and their solid-state CD spectra were also established. Comparison between solid-state CD spectra of the bulk samples from 10 different syntheses and their single crystals were thoroughly analyzed. The solid-state CD spectra of the powdered samples from 10 different crystallizations of one product were characterized. These studies indicated that mirror symmetry breaking (MSB) occurred during the crystallization process of the Fe(III) complexes and their enantiomeric excess (ee) values were between 15% and 100%.

Research paper thumbnail of Multimodal and Multispectral Imaging for Chronic Pressure Ulcer Assessment

Proceedings of the 2nd International Conference on Biomedical Signal and Image Processing

The wound care management is critical for patients with chronic ulcers, and many treatments have ... more The wound care management is critical for patients with chronic ulcers, and many treatments have been proposed to facilitate the recovery. We propose to use four optical imaging technologies, polarizing visible light, 650nm red light, 940nm near infrared, and 8-12μm long wave thermal infrared imaging, to monitor the ulcer status. Detailed imaging setup is reported and the preliminary results show that several physiological features can be extracted via the multimodal imaging. More clinical data will be collected to establish sufficient statistics to determine the prognostic biomarkers. The goal of such imaging and feature extraction is to indicate whether an ulcer is developing, infected, or recovered before significantly visible change appears.

Research paper thumbnail of Construction of MoS2/graphite/C3N4 Ternary Photocatalytic System Through Communicating Electron

Journal of the chemical society of pakistan

A MoS2/graphite/C3N4 ternary photocatalytic material (MGC catalyst) was successfully synthesized,... more A MoS2/graphite/C3N4 ternary photocatalytic material (MGC catalyst) was successfully synthesized, characterized, and applied to the photodegradation of Methylene Blue (MB). In addition, the photocatalytic mechanism of MGC was illustrated through modern characterization technology and density functional theory (DFT) computation. The findings of characterization (XRD, SEM-EDX, UV-Vis, XPS) confirmed that MGC was a composite photocatalyst of C3N4-graphite-MoS2 ternary structure, and displayed excellent visible light absorption performance. MGC photocatalyst exhibited the highest degradation efficiencies of MB than that of C3N4 and MoS2 catalyst, and it effectively improved the removal of pollutant. Also, the first-order reaction model suitably described the photocatalytic reaction process. The recycling experiments proved that MGC catalyst possessed remarkable photocatalytic stability in the degradation activities of MB, and the morphology maintained stable after three times of reusing...

Research paper thumbnail of A Self-Powered Energy-Saving Epidemic Prevention Tent

Journal of Electronic Research and Application

The current situation of the epidemic is complex and changeable. Under the China adherence to the... more The current situation of the epidemic is complex and changeable. Under the China adherence to the “dynamic zero clearance,” epidemic prevention and control is closely related to all walks of life, and epidemic prevention awning has become one of the essential basic epidemic prevention facilities. However, most of the epidemic awnings are manufactured for the isolation and protection from wind and rain, which could not meet the needs of electricity allocation during emergencies. Therefore, our goal is to design a new energy-saving epidemic prevention tent that is green, stable, and easy to shrink. It is equipped with multiple energy storage and multivariate methods to achieve self-supply of electric energy. First the “1+1” arrangement design of solar power panels on the anti-epidemic tent and pressure power panels combined with the design of pressure power panels under the tent can receive various energy inputs. At the same time, retractable brackets are designed under the four pilla...

Research paper thumbnail of Driving Behavior Recognition Algorithm Combining Attention Mechanism and Lightweight Network

Entropy, Jul 16, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Masked Spatial-Spectral Autoencoders Are Excellent Hyperspectral Defenders

arXiv (Cornell University), Jul 15, 2022

Deep learning methodology contributes a lot to the development of hyperspectral image (HSI) analy... more Deep learning methodology contributes a lot to the development of hyperspectral image (HSI) analysis community. However, it also makes HSI analysis systems vulnerable to adversarial attacks. To this end, we propose a masked spatial-spectral autoencoder (MSSA) in this paper under self-supervised learning theory, for enhancing the robustness of HSI analysis systems. First, a masked sequence attention learning module is conducted to promote the inherent robustness of HSI analysis systems along spectral channel. Then, we develop a graph convolutional network with learnable graph structure to establish global pixelwise combinations. In this way, the attack effect would be dispersed by all the related pixels among each combination, and a better defense performance is achievable in spatial aspect. Finally, to improve the defense transferability and address the problem of limited labelled samples, MSSA employs spectra reconstruction as a pretext task and fits the datasets in a self-supervised manner. Comprehensive experiments over three benchmarks verify the effectiveness of MSSA in comparison with the state-of-the-art hyperspectral classification methods and representative adversarial defense strategies.

Research paper thumbnail of Stabilizing Brillouin random laser with photon localization by feedback of distributed random fiber grating array

Optics Express

Strong scattering random media can localize light and extend photon lifetime through multiple sca... more Strong scattering random media can localize light and extend photon lifetime through multiple scattering, which offers opportunities for stabilizing random lasers. Here, we demonstrate a frequency stabilized Brillouin random laser with high coherence enabled by photon localization in random fiber grating array (RFGA). Photon trapping is realized due to wave interference in multi-scattering Fabry–Pérot (FP) cavities between random fiber gratings enabling light localization to prolong photon lifetime. The formation of the high finesse peaks of RFGA suppresses multi-longitudinal modes, which offers single-mode operation at high pump power. The RFGA distributed feedback-based Brillouin random fiber laser (BRFL) maintains a small frequency drift with the pump laser (a phase-locked laser with a linewidth of 100 Hz) at 51 kHz/s for a total change of 620 kHz over 12 s. Note there is no locking between the two lasers, and the beat frequency is measured by the optical heterodyne method. The c...

Research paper thumbnail of Distributed temperature profile in hydrogen flame measured by telecom fiber and its durability under flame by OFDR

Optics Express

The distributed temperature profile of hydrogen flame based on optical frequency-domain reflectom... more The distributed temperature profile of hydrogen flame based on optical frequency-domain reflectometry (OFDR) was experimentally demonstrated for the first time. Spatial temperature field at different flow rate of H2 flame was monitored by OFDR via a telecom fiber (Corning SMF-28, CPC6) inside the flame over seconds, and the highest temperature is on the sides of center flame separated by ∼1.4mm with difference of 140∼190°C over the flame dimension of 2.5 mm above 900°C. Uniformity level of temperature is studied by varying the distance between fiber and tube entrance, and the largest uniform region over 1-millimeter length of fiber is obtained. Rayleigh scatters correlation coefficient decreases with temperature to 90% around 400°C, further reduces to 70% about 800°C, and 50% roughly at 1000°C. It indicates that a nonlinear thermal sensitivity of SMF is expected for temperature higher than 400°C with OFDR measurement. The durability of single-mode fiber under H2 flame is studied via...

Research paper thumbnail of Design and Multiobjective Optimization of Green Closed-Loop Manufacturing-Recycling Network Considering Raw Material Attribute

Processes

Regarding decision planning in the electronic manufacturing industry, this paper designs a green ... more Regarding decision planning in the electronic manufacturing industry, this paper designs a green closed-loop manufacturing-recycling network for multiperiod production planning for multiple products. The network considers the tradeoff between production costs and environmental pollution induced by production scraps. Therefore, a mixed integer programming model with a dual objective is designed to achieve environmental protection and reduce production costs through resource recovery and utilization. At the same time, the recycled materials are considered to be treated, not entirely new, which could affect the manufacturing qualified rate. Thus, material attributes are proposed to distinguish new raw materials from recycled (second-hand) ones through the closed-loop manufacturing-recycling process to enhance the manufacturing qualified rate. In order to solve the dual-objective optimization model and realize optimal decisions, an epsilon constraint is designed to generate a nonextreme...