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Origin of the Dashuigou independent tellurium deposit at Qinghai–Xizang Plateau: constraints from the light stable isotopes C, O, and h

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Acta Geochimica 2024年第2期43卷 385-398页

作者： Jianzhao yin Yuhong Chao haoyu yin hongyun shi shoupu Xiang Wuhan Institute of Technology Wuhan 430074China College of Earth sciences Jilin UniversityChangchun 130061China Ganzhongnan Institute of Geology and Mineral Exploration Nanchang 330002China Guinea Westfi eld Mining Company-sarlu Jinzhong 031300China Orient Resources Ltd. RichmondB.C.V7E 1M8Canada silvercorp Metals Inc. Beijing 100027China

By studying the light isotopic compositions of carbon,oxygen,and hydrogen,combined with previous research results on the ore-forming source of the deposit,the authors try to uncover its metallogenic *** δ^(18)O and δ^(13)C isotope signatures of dolomite samples vary between 10.2 and 13.0‰,and between−7.2 and−5.2‰,respectively,implying that the carbon derives from the upper mantle.δD and δ^(18) O of quartz,biotite,and muscovite from diff erent ore veins of the deposit vary between−82 and−59‰,and between 11.6 and 12.4‰,respectively,implying that the metallogenic solutions are mainly *** to the relevant research results of many isotope geologists,the fractionation degree of hydrogen isotopes increases as the depth to the Earth’s core increases,and the more diff erentiated the hydrogen isotopes are,the lower their values will *** other words,mantle-derived solutions can have extremely low hydrogen isotope *** means that the δD‰ value−134 of the pyrrhotite sample numbered sD-34 in this article may indicate mantle-derived oreforming fl uid of the *** formation of the Dashuigou tellurium deposit occurred between 91.71 and 80.19 Ma.

关键词： Carbon oxygen and hydrogen isotopes Origin Independent tellurium deposit The Qinghai–Xizang Plateau

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Nutrient transport following water transfer through the world's largest water diversion channel

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Journal of Environmental sciences 2024年第1期135卷 703-714页

作者： Yuanhui Cheng hong Zhang Wei yin state Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085 China Changjiang Water Resources Protection Institute Wuhan 430051China University of Chinese Academy of sciences Beijing 100049China

Nutrient levels in the artificial channel constructed for the Middle Route Project are significant indicators of water quality safety and aquatic ecological integrity for this large,interbasin ***,the distribution and transport of nutrients along the channel were poorly *** on a time-series dataset as well as mass balance and material flow analysis methods,the water and nutrient transport fluxes in the Middle Route of the south-to-North Water Diversion Project were identified in this *** results indicate that the nutrient concentrations varied considerably with time,but there was no significant difference among the 30 stations of the main *** temperature difference was the major factor in the large fluctuations of water quality indicators over *** nutrient loadings varied with the water volume outputs from the main channel to the waterreceiving *** deposition was an important source of nutrients in the main channel,accounting for 9.13%,20.6%,and 0.635%of the nitrogen,phosphorus,and sulfur input from the Danjiangkou Reservoir,*** 2021,a net accumulation of 988 tons of N,29 tons of P,and 2,540 tons of s,respectively,were present in the main *** increase of these external and internal nutrient loadings would cause water quality fluctuation and deterioration in some local sections of the main *** study quantified the spatial and temporal patterns of nutrient transport in the Middle Route and revealed the ecological effects on the aquatic environment,assisting authorities on the project to develop effective water conservation strategies.

关键词： Nutrient transport spatiotemporal patterns The Middle Route The south-to-North Diversion Project hydro-ecological effects Water-receiving cities

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The strategic Analysis of Demand Forecast-sharing in a hybrid-Format Online Platform supply Chain

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Journal of systems science and systems Engineering 2024年第3期33卷 281-310页

作者： Jing Zhao Zijun yin Guobiao Zhou school of Mathematical sciences Tiangong UniversityTianjin300387China

This paper examines the optimal forecast-sharing strategy in a hybrid-format online platform supply chain where a supplier sells a product through agency format and reselling format provided by a platform retailer who possesses demand forecasts from two *** asymmetry and co-opetitive relationship arise between the platform retailer and the supplier,which affect their operational decisions and the supply chain’s *** improve supply chain efficiency,we compare different forecast-sharing strategies(i.e.,no forecast sharing,sharing a single forecast,and sharing two forecasts),and analyze the effects of co-opetitive parameters on the optimal forecast-sharing *** analysis shows that forecast sharing is always beneficial to the supplier,and sharing two forecasts is more beneficial than sharing a single *** for the platform retailer and the whole supply chain,forecast sharing is beneficial only under certain conditions,depending on the co-opetitive *** optimal forecast-sharing strategy is the result of a combination of the negative effect of double marginalization in reselling channel and the positive effect of responding pricing to demand uncertainty in agency *** illustrate the parameter regions of the platform retailer’s voluntary sharing,contract sharing,and no sharing,and also find that higher channel competition intensity,higher market share of agency channel,and higher commission rate can promote the platform retailer’s voluntary *** study extends the research scope of demand forecast-sharing and sheds light on the decision-making processes for managing a hybrid-format online platform supply chain.

关键词： supply chain management hybrid-format online platform demand forecast-sharing co-opetitive relationship channel competition intensity

Immunological Exploration of helicobacter pylori serotype O_(2) O-Antigen by Using a synthetic Glycan Library

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Chinese Journal of Chemistry 2024年第3期42卷 243-251页

作者： Ming Zhao Guangzong Tian Chunjun Qin Xiaopeng Zou Peter h. seeberger Jing hu Jian yin Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of EducationSchool of Biotechnology & School of Life Sciences and Health EngineeringJiangnan UniversityLihu Avenue 1800WuxiJiangsu214122 China Biomolecular systems Department Max Planck Institute of Colloids and InterfacesAm Mühlenberg 1Potsdam14476 Germany Wuxi school of Medicine Jiangnan UniversityLihu Avenue 1800WuxiJiangsu214122 China

helicobacter pylori(***)infection is a threat to human *** lipopolysaccharide(LPs)O-antigen holds promise for developing *** is meaningful to explore the immunological activity of oligosaccharides with different lengths and frameshifts for antigen ***,a glycan library of *** O2 O-antigen containing eight fragments is *** screening with *** O2 LPs sera and patients’sera by glycan microarray,the disaccharide hPO2G-2b and trisaccharide hPO2G-3a show strong antigenicity and then are separately conjugated with carrier protein *** glycoconjugates elicit a robust immunoglobulin G(IgG)immune response in *** anti-hPO2G-3a IgG antibodies possess a much stronger binding affinity with the LPs and bacteria of *** O2 than the anti-hPO2G-2b IgG *** is no cross-reaction between both sera IgG antibodies with LPs and bacteria of *** O1,O6,and *** results demonstrate the trisaccharide hPO2G-3a is a promising candidate for *** vaccine development.

关键词： Glycoconjugates helicobacter pylori Immunology Microarrays O-antigen Oligosaccharides

Greedy Lattice Paths with General Weights

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Acta Mathematica sinica,English series 2024年第9期40卷 2213-2222页

作者： yin shan ChANG An Qi ZhENG College of Mathematics Sichuan UniversityChengdu 610065P.R.China

Let{X_(v):v∈Z^(d)}be *** *** s(π)=Σ_(v∈π)X_(v)be the weight of a self-avoiding lattice pathπ.Let M_(n)=max{s(π):πhas length n and starts from the origin}.We are interested in the asymptotics of Mn as n→∞.This model is closely related to the first passage percolation when the weights{X_(v):v∈Z^(d)}are non-positive and it is closely related to the last passage percolation when the weights{X_(v):v∈Z^(d)}are *** general weights,this model could be viewed as an interpolation between first passage models and last passage ***,this model is also closely related to a variant of the position of right-most particles of branching random *** the two assumptions that∃α>0,E(X_(0)^(+))^(d)(log^(+)X_(0)^(+))^(d+α)hat E[X_(0)^(−)]hat there exists a finite real number M such that Mn/n converges to a deterministic constant M in L^(1)as n tends to *** under the stronger assumptions that∃α>0,E(X_(0)^(+))^(d)(log^(+)X_(0)^(+))^(d+α)hat E[(X_(0)^(−))^(4)]hat M_(n)/n converges to the same constant M almost surely as n tends to infinity.

关键词： Last passage percolation first passage percolation greedy lattice path

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An approach to estimate tree height using PolInsAR data constructed by the sentinel-1 dual-pol sAR data and RVoG model

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Journal of Electronic science and Technology 2024年第3期22卷 69-79页

作者： yin Zhang Ding-Feng Duan school of Resources and Environment University of Electronic Science and Technology of ChinaChengdu611731China

We estimate tree heights using polarimetric interferometric synthetic aperture radar(PolInsAR)data constructed by the dual-polarization(dual-pol)sAR data and random volume over the ground(RVoG)*** the sentinel-1 sAR dual-pol(sVV,vertically transmitted and vertically received and sVh,vertically transmitted and horizontally received)configuration,one notes that s_(hh),the horizontally transmitted and horizontally received scattering element,is *** s_(hh)data were constructed using the sVh data,and polarimetric sAR(PolsAR)data were *** proposed approach was first verified in simulation with satisfactory *** was next applied to construct PolInsAR data by a pair of dual-pol sentinel-1A data at Duke Forest,North Carolina,*** to local observations and forest descriptions,the range of estimated tree heights was overall *** the heights with the ICEsat-2 tree heights at 23 sampling locations,relative errors of 5 points were within±30%.Errors of 8 points ranged from 30%to 40%,but errors of the remaining 10 points were>40%.The results should be encouraged as error reduction is *** instance,the construction of PolsAR data should not be limited to using sVh,and a combination of sVh and sVV should be ***,an ensemble of tree heights derived from multiple PolInsAR data can be considered since tree heights do not vary much with time frame in months or one season.

关键词： Constructed polarimetric sAR data Dual polarization sentinel-1 sAR data Polarimetric interferometric sAR Random volume over the ground model Tree height estimation

Review of chiplet-based design: system architecture and interconnection

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science China(Information sciences) 2024年第10期67卷 5-24页

作者： Yafei LIU Xiangyu LI shouyi yin school of Integrated Circuits Tsinghua University Laboratory of Integrated Circuits and Intelligence systems Research Institute of Tsinghua University in Shenzhen

Chiplet-based design, which breaks a system into multiple smaller dice(or “chiplets”) and reassembles them into a new system chip through advanced packaging, has received extensive attention in the post Moore's law era due to its advantages in terms of cost, performance, and agility. however, significant challenges arise in this implementation approach, including the mapping of functional components onto chiplets, co-optimization of package and architecture, handling the increased latency of communication across functions in different dies, the uncertainty problems of fragment communication subsystems, such as maintaining deadlock-free when independently designed chiplets are combined. Despite various design approaches that attempt to address these challenges, surveying these approaches one-after-another is not the most helpful way to offer a comparative viewpoint. Accordingly, in this paper, we present a more comprehensive and systematic strategy to survey the various approaches. First, we divide them into chiplet-based system architecture design and interconnection design, and further classify them based on different architectures and building blocks of interconnection. Then, we analyze and cross-compare each classification separately, and in addition, we present a topical discussion on the evolution of memory architectures, design automation, and other relevant topics in chiplet-based designs. Finally, some discussions on important topics are presented,emphasizing future needs and challenges in this rapidly evolving field.

关键词： chiplet-based design package architecture interconnection silicon interposer

Prediction of peritoneal free cancer cells in gastric cancer patients by golden-angle radial sampling dynamic contrast-enhanced magnetic resonance imaging

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Journal of Zhejiang University-science B(Biomedicine & Biotechnology) 2024年第7期25卷 617-627页

作者： Xueqing yin Xinzhong RUAN Yongmeng ZhU Yongfang yin Rui hUANG Chao LIANG The First Affiliated hospital of Ningbo University Ningbo 315000China Ningbo Medical Center Lihuili hospital Ningbo 315000China

Objectiveperitoneal free cancer cells can negatively impact disease progression and patient outcomes in gastric cancer. This study aimed to investigate the feasibility of using golden-angle radial sampling dynamic contrast-enhanced magnetic resonance imaging (GRAsP DCE-MRI) to predict the presence of peritoneal free cancer cells in gastric cancer *** enrolled patients were consecutively divided into analysis and validation groups. Preoperative magnetic resonance imaging (MRI) scans and perfusion were performed in patients with gastric cancer undergoing surgery, and peritoneal lavage specimens were collected for examination. Based on the peritoneal lavage cytology (PLC) results, patients were divided into negative and positive lavage fluid groups. The data collected included clinical and MR information. A nomogram prediction model was constructed to predict the positive rate of peritoneal lavage fluid, and the validity of the model was verified based on data from the verification *** was no statistical difference between the proportion of PLC-positive cases predicted by GRAsP DCE-MR and the actual PLC test. MR tumor stage, tumor thickness, and perfusion parameter Tofts-Ketty model volume transfer constant (Ktrans) were independent predictors of positive peritoneal lavage fluid. The nomogram model featured a concordance index (C-index) of 0.785 and 0.742 for the modeling and validation groups, *** DCE-MR could effectively predict peritoneal free cancer cells in gastric cancer patients. The nomogram model constructed using these predictors may help clinicians to better predict the risk of peritoneal free cancer cells being present in gastric cancer patients.

关键词： Gastric cancer Magnetic resonance Golden-angle radial sampling Nomogram model Peritoneal free cancer cells

Ionogels and eutectogels for stable and long-term EEG and EMG signal acquisition

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Materials Futures 2024年第3期3卷 95-110页

作者： Asmita Veronica hnin yin yin Nyein I-Ming hsing Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayHong Kong Special Administrative Region of ChinaPeople’s Republic of China

Neurological injuries and disorders have a significant impact on individuals’quality of life,often resulting in motor and sensory *** assess motor performance and monitor neurological disorders,non-invasive techniques such as electroencephalography(EEG)and electromyography(EMG)are commonly *** employed wet electrodes with conductive gels are limited by lengthy skin preparation time and allergic *** dry electrodes and hydrogel-based electrodes can mitigate these issues,their applicability for long-term monitoring is *** electrodes are susceptible to motion artifacts,whereas hydrogel-based electrodes face challenges related to water-induced ***,ionogels and eutectogels derived from ionic liquids and deep eutectic solvents have gained immense popularity due to their non-volatility,ionic conductivity,thermal stability,and ***,in particular,exhibit superior *** characteristics make them suitable alternatives for the development of safer,robust,and reliable EEG and EMG ***,research specifically focused on their application for EEG and EMG signal acquisition remains *** article explores the electrode requirements and material advancements in EEG and EMG sensing,with a focus on highlighting the benefits that ionogels and eutectogels offer over conventional *** sheds light on the current limitations of these materials and proposes areas for further improvement in this *** potential of these gel-based materials to achieve a seamless interface for high-quality and long-term electrophysiological signal acquisition is *** the unique properties of ionogels and eutectogels holds promise for future advancements in EEG and EMG electrode materials,leading to improved monitoring systems and enhanced patient outcomes.

关键词： ionogel eutectogel electrode electroencephalography electromyography