Collectivist culture serves as a significant cultural foundation in China. It could, to some extent, shape public attitudes toward the environment and thus influence implementation of related policies. To examine this hypothesis, study constructs collectivist intensity index for 25 Chinese provinces spanning from 2010 2020. Through fixed-effect model, we explore how affects pollution emissions The empirical results indicate significance collectivism enhancing emission reduction through...

To explore the stress and deformation responses, as well failure characteristics of shield tunnel segment Hangzhou Metro under influences pit excavation other surrounding projects, a self-developed "shield hydraulic loading system" was used to carry out full-scale tests on three-ring staggered assembled segments. The structural performances process step-by-step asymmetric unloading were studied. A safety index proposed describe bearing capacity segment. Next, finite element model (FEM)...

Due to the prosperous development of economy, emissions carbon dioxide (CO2) and other greenhouse gases (GHGs) have intensified attracted attention worldwide. China has set “dual-carbon” aim pursue sustainable in transport sector. Thus, this study created a generalised Bass model forecast new energy vehicle (NEV) ownership by introducing factor, charging piles, reflect infrastructure effects. Using improved with hypothesis annual mileage, an empirical analysis was conducted subject NEVs...

Abstract Hydrothermal rutile (TiO2) is a widely distributed accessory mineral in hydrothermal veins or alteration assemblages of porphyry deposits and provides important information for further understanding fluid signatures. This study determines the geochemical composition U-Pb dates from Yulong Cu-Mo deposit east Tibet, China. Three types TiO2 polymorphs have been identified based on their Raman spectroscopic, textural, chemical characteristics. (1) Brookite anatase pseudomorphs after...

Abstract Supernormal enrichment of cadmium in sphalerite is frequently observed some sedimentary-hosted zinc-lead deposits, although related fluid process remains unconstrained. At the Jinding Mississippi Valley-type deposit, a considerable portion has been remobilized from early through coupled dissolution-reprecipitation reaction to form high-grade ores. Here we report natural occurrence various sulfide nanoparticles and textures that help document this process. A nanoscale study by...

Sleeve valve pipe grouting, an effective method for reinforcing soil layers, is often employed to correct the deformation of subway tunnels. In order study effect grouting on rectifying displacement existing tunnels, this paper proposes a mechanical model volume expansion sleeve taking into consideration grouted mass. A formula additional stress layer caused by was derived based principle mirror method. addition, horizontal tunnel developed through calculation shearing dislocation and rigid...

Analyzing the carbon-emission-reduction mechanism from perspective of air pollution control auditing is great practical significance for China to implement dual-carbon strategy. Based on panel data 30 Chinese provinces 2004 2018, we examine whether and how has an impact carbon emission reduction by using multiple regression method mediating analysis. Our analyses show that can significantly restrain emissions but no intensity. Further research suggests (1) bottom-up audit represented local...

Visual kinship verification aims to detect blood relatives in facial images. Its practical application have motivated many researchers focus on the topic as of recent. In this paper, we a new view visual technology: kin-based face generation. Specifically, propose two-stage kin-face generation model predict appearance child given pair parents. The first stage includes deep generative adversarial auto-encoder conditioned ages and genders map between high-level features. second is our proposed...

Rutile is an important ore mineral to meet the increasing demand of critical metal Ti in various sectors. Here we report a rare example rutile deposits hosted within Baishugang–Wujianfang amphibolite-facies metamorphic rocks East Qinling Orogen, central China. The rutiles are mostly located or along margins biotite and show 94.6 99 wt% TiO2. Rutiles occur as chains, thin layers foliation, dense clusters. grains coexisted with magnetite. Based on Zr-in-rutile thermometer estimated...

The Oligocene to Miocene Baiyangping Cu–Co and Pb–Zn mineralization was deposited during the collision of India Asia continents. is hosted in veins faulted carbonate clastic rocks, which act as fluid pathways. A detailed fluid-inclusion analysis C–O–S isotopic study are reported, focusing on origin mineralizing fluids processes. microthermometry inclusions quartz carbonates indicate that peak temperature for both mineralizations ranges from 160 200 °C 120 °C, respectively. During these...

Potassic magmatic rocks provide significant insights in understanding of mantle composition, evolution, and interaction with crust. magmatism along the Jinshajiang–Ailaoshan Paleo‐Tethyan suture has drawn much attention. Whereas igneous intrusion Simao terrane, west to potassic belt rarely been investigated. Hence, we present zircon U–Pb ages Lu–Hf isotope whole‐rock geochemistry for Lianhuashan pluton. Zircon dating from monzonite quartz porphyry yield 33.6 ± 0.2 33.5 0.3 Ma, respectively....

Zircon Hf-isotopic mapping can be regarded as a useful tool for evaluating the coupling relationship between lithospheric structure and metallic mineralization. Hence, this method shows important significance mineral prediction. To explore potential, published granite zircon Hf isotope data from Sanjiang Tethyan Orogen were systematically compiled. This study uses Kriging weighted interpolation in Mapgis software system to contour isotopes, revealing relation crustal metallogenesis. The...

金属矿床精确定年仍是国内外科学研究的难题,妨碍了对成矿规律的认识和资源勘探目标的优选评价。针对密西西比河谷型(MVT)铅锌矿床,前期有人分别利用Re-Os法、U-Pb法、⁴⁰Ar-³⁹Ar法、Rb-Sr法、Sm-Nd法、古地磁测年法和裂变径迹法等不同手段对其成矿时代进行了探索性尝试。其中,Re-Os同位素测年技术虽然仍是疑难金属矿床直接定年的有效手段,但现有Re-Os同位素定年技术还达不到锆石U-Pb法的精度水平。本文以三江特提斯兰坪盆地金顶铅锌镉铊矿床为研究对象,在精细解剖矿床的基础上,开展单阶段硫化物精确识别和高纯提取,建立不同阶段硫化物矿物学标志。前期研究侧重于金顶矿床脉石矿物和黄铁矿等非直接成矿矿物的定年,且年龄变化范围较大(114~23Ma),难以对该矿床的形成时代给出精确的制约;为此,本文对该矿床的成矿矿物开展了高精度定年。5件闪锌矿矿物的Re-Os等时线年龄为129±10Ma...

藏东羌塘地块变质基底的时代归属和构造演化一直以来存在较大争议，沿龙木错-双湖缝合带东段出露的由酉西群和吉塘群组成的吉塘变质杂岩体成为解决这一问题的理想研究对象。本文对酉西群变质岩和吉塘群变质岩进行了系统的岩石学、岩相学、地球化学及锆石年代学研究。吉塘变质杂岩体的基底主要由中-新元古代的变沉积岩组成，其中酉西群岩性主要为云母绿泥钠长片岩，吉塘群则以黑云母二长片麻岩和黑云母斜长片麻岩为主，它们具有高SiO2、高Al2O3、富FeOT、贫碱和贫钙的特征。微量元素均显示富集K、Rb、Th等大离子亲石元素（LILE），亏损Ti、Nb、Ta等高场强元素（HFSE），而Zr、Hf、Th、U等轻度富集则说明其源区更富集长英质组分而贫镁铁组分。碎屑锆石均为岩浆成因，年龄峰值范围为560~600Ma、808~865Ma、925~997Ma和1071~1119Ma，代表变质基底的年龄主要由泛非期和格林威尔造山期的构造-岩浆热事件所形成，在560Ma的沉积时代之前，源区可能发生有4次岩浆事件。地球化学特征和碎屑锆石组成指示酉西群和吉塘群原岩分别以泥砂质沉积岩和长英质粘土岩及砂砾岩等副变质岩为主。吉塘变质...

Visual kinship verification is one of the key research problems in computer vision with significant progress made past decade. Meanwhile, harnessing visual models may lead to personal privacy leaking and raise people's concerns, especially heavy social media users. One promising countermeasure overlay additional noise on images through adversarial attack protect privacy. Motivated by recent success Transformer tasks, we propose a novel Transformer-based method named "Kinship-advTransGAN"...

The volcano‐sedimentary sequences from the Weixi belt provide significance for Sanjiang Paleo‐Tethys evolution. This manuscript constrains ages of by LA‐ICPMS U–Pb, including bimodal volcanics (245.0–244.0 Ma) Pantiange Formation, trachyandesite–basaltic andesite (234 ± 2.0 Cuiyibi high silica subalkaline rhyolite (221 1.4 Waigucun Formation and Early Jurassic (184 2.2 Ma). show various Hf isotopic composition, which includes Middle Triassic dacite (ε [ t ] = −15.7 to −8.5, T DM2 2,006–1,613...

The Chalukou deposit is a world-class porphyry Mo in the Great Hingan Range, northeast China. Fluorites were analyzed by scanning electron microscope-cathodoluminescence (SEM-CL), microthermometry, and laser-ablation inductively-coupled-plasma mass spectrometry (LA-ICP-MS) to characterize composition temperature of mineralizing fluids. There are four types veins that can be categorised as A vein (quartz–fluorite–magnetite–K-feldspar vein), B (quartz–fluorite–molybdenite D...