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A novel deep learning framework with variational auto-encoder for indoor air quality prediction

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Frontiers of Environmental Science & Engineering 2024年第1期18卷 97-109页

作者： Qiyue Wu yun geng Xinyuan Wang Dongsheng Wang ChangKyoo Yoo Hongbin Liu Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037China College of Automation&College of Artificial Intelligence Nanjing University of Posts and TelecommunicationsNanjing 210023China Guangxi Key Laboratory of Clean Pulp&Papermaking and Pollution Control College of Light Industry and Food EngineeringGuangxi UniversityNanning 530004China Laboratory for Comprehensive Utilization of Paper Waste of Shandong Province Shandong Huatai Paper Co.Ltd.Dongying 257335China Department of Environmental Science and Engineering College of EngineeringKyung Hee UniversityYongin 446701Republic of Korea

Exposure to poor indoor air conditions poses significant risks to human health, increasing morbidity and mortality rates. Soft measurement modeling is suitable for stable and accurate monitoring of air pollutants and improving air quality. Based on partial least squares (PLS), we propose an indoor air quality prediction model that utilizes variational auto-encoder regression (VAER) algorithm. To reduce the negative effects of noise, latent variables in the original data are extracted by PLS in the first step. Then, the extracted variables are used as inputs to VAER, which improve the accuracy and robustness of the model. Through comparative analysis with traditional methods, we demonstrate the superior performance of our PLS-VAER model, which exhibits improved prediction performance and stability. The root mean square error (RMSE) of PLS-VAER is reduced by 14.71%, 26.47%, and 12.50% compared to single VAER, PLS-SVR, and PLS-ANN, respectively. Additionally, the coefficient of determination (R2) of PLS-VAER improves by 13.70%, 30.09%, and 11.25% compared to single VAER, PLS-SVR, and PLS-ANN, respectively. This research offers an innovative and environmentally-friendly approach to monitor and improve indoor air quality.

关键词： Indoor air quality PM_(2.5)concentration Variational auto-encoder Latent variable Soft measurement modeling

Combined phacoemulsification and goniosynechialysis with or without endoscopic cyclophotocoagulation in the treatment of PACG with cataract

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International Journal of Ophthalmology(English edition) 2020年第9期13卷 1385-1390页

作者： Wan-Shu Zhou Wen-Xiang Lin yun-yun geng Tao Wang Beijing Tongren Eye Center Beijing Key Laboratory of Ophthalmology and Visual SciencesBeijing Tongren HospitalCapital Medical UniversityBeijing 100730China

AIM:To investigate the efficacy and safety of combined phacoemulsification and goniosynechialysis with or without endoscopic cyclophotocoagulation(PGE group and PG group)for the treatment of patients with coexisting primary angle-closure glaucoma(PACG)and ***:The clinical data of patients with PACG and cataract were retrospectively *** was a total of 88 eyes in the study and were divided into two groups,42 eyes in PGE group and 46 eyes in PG *** success cumulative survival,preoperative and postoperative intraocular pressure(IOP),number of IOPlowering medications,best corrected visual acuity(BCVA)in the two groups were observed for more than 12 mo and compared within each group and between two ***:The mean IOP in PGE group declined from24.9 mm Hg preoperatively to 14.1 mm Hg at the first month after operation(P<0.001)and at the last visit 16.2 mm Hg(P<0.001).Meanwhile PG group also showed significant decrease,from 24.1 mm Hg preoperatively to 13.0 mm Hg at Imo after operation(P<0.001)and 15.3 mm Hg at the last visit(P=0.004).The mean medications reliance reduced in both groups,in PGE group was reduced from 1.62 preoperatively to 0.13 at the last visit(P<0.001),in PG group from 0.87 to 0.10(P<0.001).At the last visit,BCVA increased from 0.21 to 0.60 in PGE group(P<0.001)and from 0.24 to 0.67 in PG group(P<0.001).The success rate of PGE group at 1 mo was95.2%,then decreased to 70.7%at the last visit,whereas in PG group,the success rate at 1 mo was 100%,at the last visit was 73.4%.CONCLUSION:PGE shows promise for PACG patients with cataracts to reduce IOP,lighten the medication burden and improve visual acuity,and PG still has its value in specific patients.

关键词： endoscopic cyclophotocoagulation primary angle-closure glaucoma cataract combined glaucoma and cataract surgery laser surgery

An Approach to Collaborative Design Based on Distributed Constraint-Net

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Wuhan University Journal of Natural Sciences 2002年第1期7卷 82-86页

作者： He De-lin Wang geng-yun Li Zhi-gang State Key Laboratory of Die and Mould Huazhong University of Science and Technology Wuhan Hubei China

We focuse on design process in concurrent engineering and propose an, approach to collaborative design based on distributed constraint-net. The approach adopts agent technology to express kinds of distributed constraints. And through the cooperation among agents, the consistency of constraint is maintained and the constraint conflict is detected and eliminated. The constraints are satisfied concurrently and distributively. Based on the proposed approach, the collaborative design process in concurrent engineering can be well supported.

关键词： design process collaborative design distributed constraint-net agent concurrent engineering

Research progress on the mechanism of improving peanut yield by single-seed precision sowing

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Journal of Integrative Agriculture 2020年第8期19卷 1919-1927页

作者： ZHANG Jia-lei geng yun GUO Feng LI Xin-guo WAN Shu-bo Biotechnology Research Center Shandong Academy of Agricultural Sciences/Shandong Provincial Key Laboratory of Crop Genetic ImprovementEcology and PhysiologyJinan 250100P.R.China

The contradiction between the supply and demand of edible vegetable oil in China is prominent,and the self-sufficiency rate is less than 35%.Peanut has a very outstanding status in ensuring the security of edible oil and *** emphasis of increasing peanut yield should be the improvement of pod yield per unit area,because the total yield of peanut has not increased as *** is attributed to mainly two factors-low increase in the crop productivity and the competition for land for grain and cotton *** traditional double-seed sowing pattern,it is difficult to further increase the peanut yield due to the serious contradiction between populations and individuals and the declining population quality under high-yield ***-seed precision sowing was proven to be a new way to increase the economic coefficient(economic yield/biological yield)with the basic stability of the total biomass,which could make plants distribute evenly,reduce the competition among individuals and attain the full production potential of single *** order to reveal the mechanism of increasing peanut yield by single-seed precision sowing,the effects on the ontogenetic development(plant character,physiological characteristic and nutrient utilization)and population structure(population uniformity and photosynthesis,source-sink relationship and yield composition)were systematically *** study reports establishment of the high-yield cultivation technology system with the key technology of single-seed precision sowing and the supporting technology of fertilizing and *** anticipate its wider application for the improvement of peanut yield.

关键词： peanut single-seed precision sowing ontogenetic development population structure yield-increasing mechanism key technology

TD-DFT Studies on Electronic and Spectral Properties of Platinum（II） Complexes with Phenol and Pyridine Groups

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Chemical Research in Chinese Universities 2013年第2期29卷 361-365页

作者： ZHAO Shan-shan SHI Li-li SU Zhong-min geng yun ZHAO Liang Institute of Functional Material Chemistry Faculty of Chemistry Northeast Normal University Changchun 130024 P. R. China

The molecular structures of the ground and the lowest triplet states for a series of Pt（ll） complexes PtLCl（l）[L=6-（2-hydroxyphenyl）-2,2＇-bipyridine], Pt（pp）2[pp=2-（2-hydroxyphenyl）pyridine]（2）, PtbpyClz（bpy=2,2＇- bipyridine）（3）, and the free tridentate L ligand（4） were optimized by the density functional theory B3LYP and UB3LYP methods, respectively. On the basis of optimized geometries, the spectral properties were investigated with time-dependent density functional theory（TD-DFT）. In comparison with those of complexes 2 and 3, the more rigid structure of complex 1 together with its low rate of the radiationless decay via nonemissive d-d state leads to higher photoluminescence quantum efficiency. And the phosphorescence quantum efficiency of complex 1 can be easily controlled by modifying auxiliary ligands. The introduction of fluorine ligand into complexes can effectively increase the radiation transition rate and decrease the radiationless d-d transition rate, and as a result, a novel complex PtLF（5） might be a good phosphorescent material suitable for organic electronic devices.

关键词： Pt(II) complex Time-dependent density functional theory(TD-DFT) Optoelectronic property

Two new species of Hartigia Schidte from China(Hymenoptera:Cephidae)

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Zoological Systematics 2015年第2期40卷 223-227页

作者： geng-yun Niu Wei Xiao Mei-Cai Wei Key Laboratory of Cultivation and Protection for Non–Wood Forest Trees(Central South University of Forestry and Technology) Ministry of Education

Two new species of Hartigia Schiodte, 1838 from China are described： H. maculothoracica sp. nov. from Xinjiang and H. fuscicosta sp. nov. from Jilin. A diagnosis of Hartigia and a key to Hartigia maculothoracica and ... 详细信息

关键词： Cephidae Hartigiinae Hartigia new species China.

Determination of serum carbohydrate-deficient transferrin in the diagnosis of alcoholic liver disease

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Hepatobiliary & Pancreatic Diseases International 2005年第2期4卷 265-268页

作者： You-Shi Liu geng-yun Xu Dong-Qing Cheng You-Ming Li Department of Gastroenterology First Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310003 China. lys_2002cn@***

BACKGROUND:Alcoholic liver disease (ALD) is a serious and potentially fetal consequence of alcohol use. The diagnosis of ALD is based on alcohol consumption, physical signs and symptoms, and laboratory tests. The aim of the present study was to assess the reliability of carbohydrate-deficient transferrin (CDT) in the diagnosis of ALD.METHODS:According to the diagnostic criteria for ALD by the Chinese Medical Association in 1995, 76 patients with ALD, 55 patients with alcoholism, 32 patients with nonalcoholic liver disease (NALD), and 27 healthy subjects (controls) were studied. Serum CDT was assayed by isoelectric focusing immunofixation and Comassie blue staining. The levels of alamine aminotransferase (ALT), aspartate aminotransferase (AST), and gamma glutamyltransferase (GGT) were also examined.RESULTS:The positive rate of CDT in the patients with ALD was 93.4%(71/76), which was higher than that in those with alcoholism (52.7%, 29/55, P<0.001), in those with NALD(9.4%, 3/32, P<0.001), and in healthy controls, respectively. The sensitivity and specificity of CDT for ALD was 93.4% and 71.9%, respectively.CONCLUSION:CDT may help diagnose alcoholic liver disease.

关键词： carbohydrate-deficient transferrin alcoholic liver disease diagnosis

Arbuscular mycorrhizal fungi combined with exogenous calcium improves the growth of peanut(Arachis hypogaea L.)seedlings under continuous cropping

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Journal of Integrative Agriculture 2019年第2期18卷 407-416页

作者： CUI Li GUO Feng ZHANG Jia-lei YANG Sha MENG Jing-jing geng yun WANG Quan LI Xin-guo WAN Shu-bo Biotechnology Research Center Shandong Academy of Agricultural Sciences/Key Laboratory of Crop Genetic Improvement and Ecological Physiology of Shandong ProvinceJinan 250100P.R.China Scientific Observing and Experimental Station of Crop Cultivatio n in East China Ministry of AgricultureJinan 250100P.R.China College of Life Sciences Shandong Normal UniversityJinan 250014P.R.China Shandong Academy of Agricultural Sciences Jinan 250100P.R.China

The growth and yield of peanut are negatively affected by continuous *** mycorrhizal fungi(AMF)and calcium ions(Ca^(2+))have been used to improve stress resistance in other plants,but little is known about their roles in peanut seedling growth under continuous *** study investigated the possible roles of the AMF Glomus mosseae combined with exogenous Ca^(2+)in improving the physiological responses of peanut seedlings under continuous *** combined with exogenous Ca^(2+)can enhance plant biomass,Ca^(2+)level,and total chlorophyll *** exogenous Ca^(2+)application,the F_v/F_m in arbuscular mycorrhizal(AM)plant leaves was higher than that in the control plants when they were exposed to high irradiance *** peroxidase,superoxide dismutase,and catalase activities in AM plant leaves also reached their maximums,and accordingly,the malondialdehyde content was the lowest compared to other ***,root activity,and content of total phenolics and flavonoids were significantly increased in AM plant roots treated by Ca^(2+)compared to either *** inoculation or Ca^(2+)treatment *** levels of AhCaM,AhCDPK,AhRAM1,and AhRAM2 were significantly improved in AM plant roots under exogenous Ca^(2+)*** implied that exogenous Ca^(2+)might be involved in the regulation of *** colonization of peanut plants,and in turn,AM symbiosis might activate the Ca^(2+)signal transduction *** combination of AMF and Ca^(2+)benefitted plant growth and development under continuous cropping,suggesting that it is a promising method to cope with the stress caused by continuous cropping.

关键词： Arachis hypogaea L. arbuscular mycorrhizal fungi continuous cropping exogenous calcium

Radical Mechanism of IrⅢ/NiⅡ Metallaphotoredox-Catalyzed C(sp^(3))-H Functionalization Triggered by Proton-Coupled Electron Transfer:Theoretical Insight

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CCS Chemistry 2022年第4期4卷 1429-1440页

作者： Yu-Jiao Dong Bo Zhu yun geng Zhi-Wen Zhao Zhong-Min Su Wei Guan Institute of Functional Material Chemistry Faculty of ChemistryNortheast Normal UniversityChangchun 130024 College of Chemistry Jilin UniversityChangchun 130012

Photoredox catalysis can be induced to activate organic substrates or to modulate the oxidation state of transition-metal catalysts via unique singleelectron transfer processes,so as to achieve challenging C(sp^(3))-H functionalization under mild ***,the specific reaction mechanism and relevant electron transfer process still need to be ***,a highly regioselective Ir^(Ⅲ)/Ni^(Ⅱ)-metallaphotoredox-catalyzed hydroalkylation of asymmetrical internal alkyne with an etherα-hetero C(sp^(3))-H bond has been investigated by density functional theory(DFT)calculations.A novel radical mechanism was predicted to merge oxidative quenching(Ir^(Ⅲ)-*Ir^(Ⅲ)-Ir^(Ⅳ)-Ir^(Ⅲ))and nickel catalytic cycles(NiⅡ-NiⅢ-NiI-NiⅢ-NiⅡ)for this C(sp^(3))-H functionalization to construct C(sp^(3))-C(sp^(2))*** consists of seven major steps:the single-electron transfer involved in the photoredox cycle for generating active Ni(Ⅰ)-chloride complexes,proton-coupled electron transfer process to provide α-carbon-centered tetrahydrofuran(THF)radicals,radical capture by Ni(Ⅱ),reductive elimination to obtain 2-chlorotetrahydrofuran,alkyne oxidative hydrometallation,innersphere electron transfer,and σ-bond metathesis to yield the desired alkyne hydroalkylation ***,both the thermodynamic performance for redox potentials and the kinetic exploration for energy barriers and electron-transfer rates have also been evaluated for the corresponding electron transfer *** addition,the steric effects play a major role in determining the regioselectivity of alkyne oxidative hydrometallation.

关键词： C(sp^(3))-H functionalization photoredox catalysis iridium nickel density functional calculations