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Potato late blight caused by Phytophthora infestans:From molecular interactions to integrated management strategies

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Journal of Integrative Agriculture 2022年第12期21卷 3456-3466页

作者： dong Suo-meng ZHOU shao-qun Key Laboratory of Integrated Management of Crop Diseases and Pests Ministry of Education/Department of Plant Pathology and Key Laboratory of Plant ImmunityNanjing Agricultural UniversityNanjing 210095P.R.China Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120P.R.China

Over 170 years after the infamous Irish Potato Famine,potato late blight(PLB)caused by Phytophthora infestans remains the single most devastating disease of global potato production,causing up to 10 billion USD in yield loss and management *** decades of research,growers and agronomists in the field as well as laboratory scientists have made significant progress in understanding the molecular pathogenesis process of this critical pathosystem and effective management strategies to control ***,the need to feed an ever-increasing global population under changing climate demands continued improvement in efficient and sustainable PLB management schemes that can be implemented across a broad economic *** this review,we briefly summarize the current understanding of the molecular interaction between *** and its host plants,highlight the current integrated pest management strategy to control PLB on local and continental scales,and discuss the potential of further improvement of sustainable PLB control through genetic enhancement of crop resistance and emerging crop protection technologies.

关键词： potato late blight Phytophthora infestans integrated pest management

Dynamic Constraint-Driven Event-Triggered Control of Strict-Feedback Systems Without Max/Min Values on Irregular Constraints

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IEEE/CAA Journal of Automatica Sinica 2024年第3期11卷 569-580页

作者： Zhuwu shao Yujuan Wang Zeqiang Li Yongduan song the State Key Laboratory of Power Transmission Equipment&System Security and New Technology and the School of AutomationChongqing UniversityChongqing 400044China IEEE

This work proposes an event-triggered adaptive control approach for a class of uncertain nonlinear systems under irregular *** the constraints considered in most existing papers,here the external irregular constraints are considered and a constraints switching mechanism(CSM)is introduced to circumvent the difficulties arising from irregular output *** on the CSM,a new class of generalized barrier functions are constructed,which allows the control results to be independent of the maximum and minimum values(MMVs)of constraints and thus extends the existing ***,we proposed a novel dynamic constraint-driven event-triggered strategy(DCDETS),under which the stress on signal transmission is reduced greatly and no constraints are violated by making a dynamic trade-off among system state,external constraints,and inter-execution *** is proved that the system output is driven to close to the reference trajectory and the semi-global stability is guaranteed under the proposed control scheme,regardless of the external irregular output *** also verifies the effectiveness and benefits of the proposed method.

关键词： Adaptive control dynamic constraint-driven event-triggered control irregular output constraints nonlinear strict-feed-back systems

Numerical Study on Scale Effect of Form Factor for DTMB5415, KCS,KVLCC2, and 4000TEU Container Ship

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China Ocean Engineering 2021年第5期35卷 767-778页

作者： WANG Zhan-zhi MIN shao-song PENG Fei Department of Naval Architecture and Ocean Engineering Naval University of EngineeringWuhan 430033China

Four ships,a twin-propeller naval ship,two single-propeller container ships,and a single-propeller very large crude carrier(VLCC),were studied to investigate the scale effect of the form *** viscous flow fields of the ships at different scales were solved numerically via the Reynolds-averaged Navier–Stokes method combined with the shear stress transport k–ωturbulence *** numerical method was validated through comparisons with experimental data,and numerical uncertainty analysis was carried out based on the ITTC recommended *** this basis,scale effects of the form factor were analyzed using different friction lines,and scale effects of flow fields and the mean axial wake fractions were further analyzed in *** results showed that the form factor exhibited scale effects when adopting the ITTC-1957 line,and it increased with the increase in the Reynolds *** scale effect of the form factor reduces the prediction precision of the full-scale ship *** friction line has a significant effect on the form *** form factor exhibits little dependence on the Reynolds number when using the numerical friction line or the Katsui line,which is useful for full-scale ship resistance *** the increasing Reynolds number,the boundary layer thickness becomes thinner and the axial velocity contour contracts toward the center plane,and there is nearly a linear relationship between the reciprocal of mean axial wake fraction on propeller disc and Reynolds number in logarithmic scale for the three types of ship forms.

关键词： form factor scale effect ITTC-1957 line numerical calculation flow field

A SIMPLE ITERATIVE ALGORITHM FOR MAXCUT

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Journal of Computational Mathematics 2024年第5期42卷 1277-1304页

作者： Sihong shao dong Zhang Weixi Zhang CAPT LMAM and School of Mathematical SciencesPeking UniversityBeijing 100871China LMAM and School of Mathematical Sciences Peking UniversityBeijing 100871China

We propose a simple iterative(SI)algorithm for the maxcut problem through fully using an equivalent continuous *** does not need rounding at all and has advantages that all subproblems have explicit analytic solutions,the cut values are monotonically updated and the iteration points converge to a local optima in finite steps via an appropriate subgradient *** experiments on G-set demonstrate the *** particular,the ratios between the best cut values achieved by SI and those by some advanced combinatorial algorithms in[***.,248(2017),365-403]are at least 0.986 and can be further improved to at least 0.997 by a preliminary attempt to break out of local optima.

关键词： Maxcut Iterative algorithm Exact solution Subgradient selection Fractional programming

Conditional Generation of Multiparticle Entanglement via Cavity QED

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Communications in Theoretical Physics 2009年第11期52卷 835-839页

作者： XIANG shao-Hua shao Bin song Ke-Hui Department of Physics and Information Engineering Huaihua University Huaihua 418008 China Research Institute of Information Science Huaihua University Huaihua 418008 China Department of Physics Beijing Institute of Technology Beijing 100081 China

We propose a simple scheme to not only generate GHZ states and W states of the multiparticle but also form a new category of multiparticle entangled states by letting the A-type three-level atoms simultaneously interacting with a coherent cavity field followed by the selective measurements on the cavity mode. We investigate the influence of the cavity dissipation on the generated entangled state and discuss the experimental feasibility of our scheme. It is shown that the intensity of the coherent cavity field plays an instructive role in contribution to state preparation process while the cavity decay and the detuning between the atoms and cavity mode result in the deterioration of the generated entangled state.

关键词： multiparticle entanglement gavity QED decoherence

Identifying the limiting distribution by a general approach of Stein's method

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Science China Mathematics 2016年第12期59卷 2379-2392页

作者： shao Qi-Man ZHANG Zhuo-song Department of Statistics The Chinese University of Hong Kong

A general exchange pair approach is developed to identify the limiting distribution for any sequence of random variables, by calculating the conditional mean and the conditional second moments. The error of approximation is also studied. In particular, a Berry-Esseen type bound of O(n^(-3/4)) is obtained for the Curie-Weiss model at the critical temperature.

关键词： Stein's method exchangeable pair limiting distribution Berry-Esseen bounds Curie-Weiss model

Inferior pancreaticoduodenal artery pseudoaneurysm in a patient with calculous cholecystitis: A case report

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World Journal of Clinical Cases 2019年第18期7卷 2851-2856页

作者： Qiao-dong Xu song-Gang Gu Jia-Hong Liang shao-dong Zheng Zhi-Hua Lin Pei-dong Zhang Jiang Yan Department of Biliary-Pancreatic Minimally Invasive Surgery The First Affiliated Hospital of Shantou University Medical College

BACKGROUND Pancreaticoduodenal artery (PDA) aneurysms are extremely rare. The complicated clinical presentations and high incidence of rupture make it difficult to diagnose and treat. PDA pseudoaneurysms often rupture into the gastrointestinal tract and result in life-threatening gastrointestinal hemorrhage. CASE SUMMARY A 69-year-old man was admitted to our hospital due to right upward abdominal pain. A computed tomography (CT) scan demonstrated acute cholecystitis and cholecystolithiasis. Percutaneous gallbladder drainage was performed subsequently. He was discharged after 3 d and readmitted to hospital for cholecystectomy as arranged 1 mo later. A repeat CT scan revealed an emerging enhancing mass between the pancreatic head and the descending duodenum. Then, he suffered hematochezia and hemorrhagic shock suddenly. Emergency percutaneous angiogram was performed and selective catheterization of the superior mesenteric artery demonstrated a pseudoaneurysm in the inferior PDA. Coil embolization was performed and his clinical condition improved quickly after embolization and blood transfusion. He underwent laparoscopic cholecystectomy and was discharged from hospital after surgery under satisfactory conditions. CONCLUSION PDA pseudoaneurysms are uncommon. Acute haemorrhage is a severe complication of pseudoaneurysm with high mortality which clinicians should pay attention to.

关键词： Calculous cholecystitis Inferior pancreaticoduodenal artery pseudoaneurysm Gastrointestinal haemorrhage Coil embolization Case report

Azopyridine-imidacloprid derivatives as photoresponsive neonicotinoids

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Chinese Chemical Letters 2016年第5期27卷 635-639页

作者： Shen Li Run-Jiang song dong-Hui Wang Xue Tian Xu-Sheng shao Zhong Li Shanghai Key Laboratory of Chemical Biology School of Pharmacy East China University of Science and Technology Shanghai 200237 China College of Life Science Perking University Beijing 100871 China

A series of imidacloprid derivatives containing an azopyridine motif as a photoswitchable functional group were designed and synthesized. The new version of photoresponsive imidacloprid analogues showed improved solubility in comparison with their azobenzene analogues. 1.2 to 2-fold activity difference was observed for these azopyridine-imidacloprids against house fly （Musca domestica） and cowpea aphid （Aphis craccivora） upon irradiation.

关键词： Azopyridine Photoresponsive Imidacloprid Solubility Insecticide

Effect of nano-carbon black content on wetting phenomenon of molten steel and alumina-carbon ceramic filter substrates

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Journal of Iron and Steel Research International 2024年第8期31卷 1900-1913页

作者： Jin-wen song Wen Yan Zhe Chen Ying Liu shao-song Hong The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology Wuhan University of Science and TechnologyWuhan 430081HubeiChina Jiangsu Sheng Nai New Materials Co. Ltd.Taizhou 225503JiangsuChina

The effect of nano-carbon black content(O,8 and 12 wt.%)on the wettability of molten steel on Al_(2)O_(3)-C substrates was investigated by the sessile drop wetting method at 1500℃ under argon *** the beginning of the wetting experiment,the contact angle decreased with the increase in nano-carbon black *** the wetting experiment progressed,FeAl_(2)0_(4) layer and sheet Al_(2)O_(3) layer were found at the interface between the molten steel and the Al_(2)O_(3)-C substrates with O and 8 wt.% nano-carbon black content,and the contact angle deceased with *** the content of nano-carbon black was 12 wt.%,a large number of nano-Al_(2)O_(3) whiskers were observed,which made the contact angle between the molten steel and Al_(2)O_(3)-C substrate become *** on the scanning electron microscope and energy dispersive spectrometry results,the formation mechanism of FeAl2O4 layer and Al_(2)O_(3) layer and the interfacial reaction mechanism were proposed.

关键词： Contact angle Nano-carbon black Al_(2)O_(3)-C substrate Molten steel Interfacial reaction