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Transverse momentum balance of dijets in Xe+Xe collisions at the LHC

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Nuclear Science and Techniques 2024年第7期35卷 137-146页

作者： Yao Li Shu-Wan Shen sa Wang Ben-Wei Zhang Key Laboratory of Quark&Lepton Physics(mOE)and Institute of Particle Physics Central China Normal UniversityWuhan430079China College of Science China Three Gorges UniversityYichang443002China Center for Astronomy and Space Sciences and Institute of modern Physics China Three Gorges UniversityYichang443002China Guangdong-Hong Kong Joint Laboratory of Quantum matter Guangdong Provincial Key Laboratory of Nuclear ScienceSouthern Nuclear Science Computing CenterSouth China Normal UniversityGuangzhou510006China

We present a theoretical study of the medium modifications of the p_(T)balance (x_(J)) of dijets in Xe+Xe collisions at■.The initial production of dijets was carried out using the POWHEG+PYTHIA8 prescription,which matches the next-toleading-order (NLO) QCd matrix elements with the parton shower (PS) *** SHELL model described the in-medium evolution of nucleus–nucleus collisions using a transport *** theoretical results of the dijet xJin the Xe+Xe collisions exhibit more imbalanced distributions than those in the p+p collisions,consistent with recently reported ATLAS *** utilizing the Interleaved Flavor Neutralisation,an infrared-and-collinear-safe jet flavor algorithm,to identify the flavor of the reconstructed jets,we classify dijets processes into three categories:gluon–gluon (gg),quark–gluon (qg),and quark–quark (qq),and investigated the respective medium modification patterns and fraction changes of the gg,qg,and qq components of the dijet sample in Xe+Xe *** is shown that the increased fraction of qg component at a small x_(J)contributes to the imbalance of the dijet;in particular,the q_(1)g_(2)(quark-jet-leading) dijets experience more significant asymmetric energy loss than the g_(1)q_(2)(gluon-jet-leading) dijets traversing the *** comparing the■of inclusive,■ dijets in Xe+Xe collisions,we observe■.moreover,ρ_(Xe),P_(b),the ratios of the nuclear modification factors of dijets in Xe+Xe to those in Pb+Pb,were calculated,which indicates that the yield suppression of dijets in Pb+Pb is more pronounced than that in Xe+Xe owing to the larger radius of the lead nucleus.

关键词： Heavy-ion collisions Quark-gluon plasma Jet quenching Transverse momentum balance

Comparison of ERA5 turbulent fluxes at the air-sea interface with measurements from a wave-following platform

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Atmospheric and Oceanic Science Letters 2024年第3期 34-38页

作者： sa?d Benjeddou denis Bourras Christopher Luneau Aix marseille Université National Center for Scientific ResearchMediterranean Institute of Oceanography Observatory of the Sciences of the Universe Pythéas Institute National Center for Scientific Research

Turbulent fluxes at the air-sea interface were estimated with data collected in 2011-2020 with a low-profile platform named OCARINA during eight experiments in five regions:2011,2015,and 2016 in the Iroise Sea;2012 in the tropical Atlantic;2014 in the Chilie-Peru upwelling;2017 and 2018 in the mediterranean Sea,and 2018 and 2020 in *** observations were carried out with moderate winds(2-10 m s-1) and average wave heights of 1.5 *** this study,the authors used the fluxes calculated by the bulk method using OCARINA-sampled data as the *** data can validate the fluxes estimated from ERAS reanalysis *** OCARINA and ERA5 data were taken *** do this,the authors established an algorithm to extract the OCARINA data as closely as possible to the reanalysis data in time and *** measurements of the OCARINA platform can conclude on the relevance of the widely used reanalysis data.

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Prevention and treatment of gerbil hepatitis E using the programmable CRISPR-Cas13d system

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Genes & diseases 2024年第4期11卷 94-97页

作者： Chengcheng Zhao Chong Lia sa Li Hanyu Wu Pengyao Ren Tianlong Liu Xiaoxiang Hu Ran Zhang State Key Laboratory of Animal Biotech Breeding College of Biological SciencesChina Agricultural UniversityBeijing 100193China Laboratory of Veterinary Pathology and Nanopathology College of Veterinary MedicineChina Agricultural UniversityBeijing 100193China

In recent years,the global incidence of hepatitis E virus(HEV)has been rising,leading to increased morbidity and mortality associated with ***13,a CRISPR effector,shows promise as an antiviral agent against singlestranded RNA ***13d,a type VI-d effector,exhibits higher efficiency in suppressing RNA viruses compared to other type VI ***,its in vivo activity against RNA viruses in mammals remains unknown.

关键词： mortality hepatitis treatment

A New multiobjective Particle Swarm Optimization Using Local displacement and Local Guides

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Open Journal of Optimization 2024年第2期13卷 31-49页

作者： saïd Charriffaini Rawhoudine Abdoulhafar Halassi Bacar Laboratoire des mathmatiques Statistiques Informatique et Applications (LMSIA) Dpartement des Mathmatiques Physique-Chimie et Informatique Facult des Sciences et Techniques Universit des Comores Moroni Comoros

This paper introduces a novel variant of particle swarm optimization that leverages local displacements through attractors for addressing multiobjective optimization problems. The method incorporates a square root distance mechanism into the external archives to enhance the diversity. We evaluate the performance of the proposed approach on a set of constrained and unconstrained multiobjective test functions, establishing a benchmark for comparison. In order to gauge its effectiveness relative to established techniques, we conduct a comprehensive comparison with well-known approaches such as SmPSO, NSGA2 and SPEA2. The numerical results demonstrate that our method not only achieves efficiency but also exhibits competitiveness when compared to evolutionary algorithms. Particularly noteworthy is its superior performance in terms of convergence and diversification, surpassing the capabilities of its predecessors.

关键词： Particle Swarm Optimization multiobjective Optimization Attractor-Based displacement Square Root distance Crowding distance

Hydrological modelling of the Casamance River in Its Upstream Section (Basin at Kolda Level) to Predict Its Future States as a Function of different Stresses

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Open Journal of Geology 2024年第2期14卷 143-154页

作者： Coumba Ndiaye saïdou Ndao Laboratory of Water and Environment Sciences and Technologies (LaSTEE) Polytechnic School of Thies (EPT) Thies Senegal UFR Sciences and Technologies (SET) University Iba Der Thiam of Thies (UIDT) Thies Senegal

Flow records for stations in the Casamance basin are incomplete. Several gaps were noted over the 1980-2021 study period, making this study tedious. The aim of this study is to assess the potential impact of climate change on the flow of the Casamance watershed at Kolda. To this end, hydrological series are simulated and then extended using the GR2m rainfall-runoff model, with a monthly time step. Projected climate data are derived from a multi-model ensemble under scenarios SSP2-4.5 (scenario with additional radiative forcing of 4.5 W/m2 by 2099) and SSP5-8.5 (scenario with additional radiative forcing of 8.5 W/m2 by 2099). An analysis of the homogeneity of the rainfall data series from the Kolda station was carried out using KhronoStat software. The Casamance watershed was then delimited using ArcGIS to determine the morphometric parameters of the basin, which will be decisive for the rest of the work. Next, monthly evapotranspiration was calculated using the formula proposed by Oudin et al. This, together with rainfall and runoff, forms the input data for the model. The GR2m model was then calibrated and cross-validated using various simulations to assess its performance and robustness in the Casamance watershed. The version of the model with the calibrated parameters will make it possible to extend Casamance river flows to 2099. This simulation of future flows with GR2m shows a decrease in the flow of the Casamance at Kolda with the two scenarios SSP2-4.5 and SSP5-8.5 during the rainy period, and almost zero flows during the dry season from the period 2040-2059.

关键词： Casamance Watershed Climate Change GR2m Climate models

The first record of dermochelyid turtles in the Eocene of Tierra del Fuego:new insights on the evolution of the Weddellian faunas

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Advances in Polar Science 2024年第1期35卷 63-77页

作者： Paula BONA Juliana STERLI marcelo saúl de la FUENTE Eduardo OLIVERO marta S.FERNÁNdEZ marcelo REGUERO división Paleontología Vertebrados Museo de La Plata-Anexo IIFacultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataLa Plata B1900FWAArgentina Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Ciudad Autónoma de Buenos Aires C1425FQBArgentina museo Paleontológico Egidio Feruglio Trelew U9100Argentina Instituto de Evolución Ecología Histórica y Ambiente-CONICETSan Rafael CP5600Argentina Centro Austral de Investigaciones Científicas-CONICET Universidad Nacional de Tierra del FuegoUshuaia CP 9410Argentina división Paleontología Vertebrados Museo de La PlataUniversidad Nacional de La PlataLa Plata B1900FWAArgentina

The Antarctic Paleogene marine fossil record has been the key to reconstructing the evolution of the Weddellian Sea and final dismemberment of Southern *** this context,Eocene marine vertebrates from Seymour(marambio)Island have provided valuable *** present the first Eocene record of marine reptiles from the southern Atlantic Coast of South *** corresponds to several postcranial turtle remains represented by a proximal end of the right humerus,three caudal and one thoracic vertebrae,a fragment of the left pubis,and ten ossicles of the dorsal carapace,coming from the Leticia Formation(late-mid Eocene)at Cabo Tiburones,Tierra del Fuego,*** materials show severalfeatures such as the size and general morphology of the humerus and vertebrae,and the presence of relatively small,irregular,smooth,and unkeeled ossicles,which allow us to assign them to dermochelyidae *** are a cosmopolitan group ofcryptodiran turtles,registered from the late Cretaceous up to the recent,with some physiological-biological peculiarities(e.g.,endothermy and an exclusive jellyfish-based diet)and characterized by the presence of an osseous carapace formed by *** new finding from the Leticia Formation is an addition to the scarce and extremely fragmentary record of Eocene dermochelyids from the southern seas like those from the La meseta and Submeseta formations(Antarctica)and the Waihao and Burnside formations(New Zealand).This new information allows us to discuss the presence of these turtles in such high latitudes in the past and its implication in the evolution of the Weddellian fauna.

关键词： marine reptiles sea turtles dermochelyidae Paleogene La meseta Formation Submeseta Formation Leticia Formation

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元代安西王府属官考论

中国边疆史地研究 2024年第3期 112-124,215页

作者：撒海涛兰州大学西北少数民族研究中心兰州市嘉峪关730020

元代安西王府属官设置,反映了安西王统治秦蜀地区的情况,也可由此审视元朝分封制度及王府设置情形。王相府为安西王政务机关及秦蜀地区最高军政机构,王相身兼辅佐安西王及行使地方权力双重职能。安西王府文职属官名称多袭自金朝,任职者... 详细信息

元代安西王府属官设置,反映了安西王统治秦蜀地区的情况,也可由此审视元朝分封制度及王府设置情形。王相府为安西王政务机关及秦蜀地区最高军政机构,王相身兼辅佐安西王及行使地方权力双重职能。安西王府文职属官名称多袭自金朝,任职者多为地方儒士;武职属官多系从征秦蜀军帅家族成员。此外,王府尚有奥鲁赤、医药提举、掌祠事、经籍官、司天台判等特定职事设置。安西王府属官设置在地方层面复制朝廷的基本功能,是安西王特殊权力的体现。安西王府具有人才储备功能,王府属官不仅负责王府及其领地事务,也可出任地方官。至嗣王阿难答时期,王府属官任免受到中央乃至行省牵制,折射出安西王权力的升降。

关键词：安西王安西王府王相府王府属官秦蜀地区

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激光散射特性的红外瞄准镜基线检测方法

激光杂志 2024年第7期45卷 227-232页

作者：李波莎日娜内蒙古医科大学呼和浩特010110 中国人民解放军32302部队50分队北京101400

为提升武器射击精度,设计激光散射特性的红外瞄准镜基线检测方法。通过固定瞄准镜并利用黑体发射红外激光,在镜子反射后形成红外平行光束,并在瞄准镜视场内生成靶标的像。通过调整瞄准镜分划中心与靶标像中心重合,实现基线检测。采用双... 详细信息

为提升武器射击精度,设计激光散射特性的红外瞄准镜基线检测方法。通过固定瞄准镜并利用黑体发射红外激光,在镜子反射后形成红外平行光束,并在瞄准镜视场内生成靶标的像。通过调整瞄准镜分划中心与靶标像中心重合,实现基线检测。采用双向反射分布函数和基尔霍夫近似理论的驻留相位近似法,分析红外激光的散射特性及波长与散射角对成像精度的影响,从而提高基线检测的精度。实验证明:当入射波长在9.5μm左右时,射击目标粗糙度为8μm时,双站极化散射系数最低,在1.0左右;当散射角在29°左右时,射击目标粗糙度为8μm时,双站极化散射系数最低在0.146左右;校正后目标位置偏差平均为0.01 m。

关键词：激光散射特性红外瞄准镜基线检测反射分布函数基尔霍夫驻留相位近似法

BIERmER’s disease: About 4 Cases diagnosed at Regional University Hospital of Ouahigouya (Chur/Ohg) and Literature Review

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Open Journal of Gastroenterology 2024年第9期14卷 322-329页

作者： Zanga damien Ouattara Stève Léonce Zoungrana saïdou santi Emeline Agathe Carama Fabien dembele Bafima désiré diarra Alain Bougouma department of Gastroenteroly Ouahigouya Regional University Hospital Ouahigouya Burkina Faso department of Neurology Bogodogo University Hospital Ouagadougou Burkina Faso department of Gastroenterology Yalgado Oudraogo University Hospital Center Ouagadougou Burkina Faso

megaloblastic pernicious anemia is an autoimmune disorder, considered rare in African context. The objective of this study was to report four clinical cases collected at the CHUR/OHG, and to review the literature. The study population consisted of two men and two women. The clinical manifestations were mainly neurological and hematological. The neurological signs were mainly paresthesia. One patient presented memory problems. On the biological level, macrocytic anemia and vitamin B12 deficiency were reported in two cases prior to treatment while the other two without serological assay of vitamin B12 were put on trial treatment. Anti-intrinsic factor antibodies were positive in three patients. The Schilling test was not used. Upper gastrointestinal endoscopy revealed atrophic fundic gastritis in all four patients who received treatment through intramuscular injection of hydroxocobalamin (vitamin B12). The evolution was favorable after one month of treatment in all cases. The literature review is dominated by clinical case reports, the largest cohorts of which are from the maghreb.

关键词： Anemia Pernicious megaloblastic Vitamin B12