Geology and mineralization of the Hongqiling large magmatic nickel-copper-cobalt deposit(22×10^(4)t)in Jilin Province,China:A review

The Hongqiling large nickel-copper-cobalt deposit(hereafter referred to as the Hongqiling deposit),a typical mafic-ultramafic copper-nickel deposit in China,boasts proven Ni(Ni)resources of approximately 22×10^(4)t,associated copper resources of 2×10^(4)t,and associated cobalt(Co)resources of 0.5×10^(4)t,with Ni reserves ranking 10th among China's magmatic nickel deposits.Geotectonically,the Hongqiling deposit is situated in the superimposed zone between the Xing'an-Mongolian orogenic belt and the circum-Western Pacific's active continental margin belt.Its ore-bearing plutons occur within the metamorphic rocks of the Ordovician Hulan Group,with the emplacement of plutons and the locations of orebodies governed by the deep-seated Huifahe fault and its secondary NW-trending Fujia-Hejiagou-Beixinglong-Changsheng fault zone.In the deposit,the rock assemblages of ore-bearing plutons predominantly encompass gabbro-pyroxenite-olivine pyroxenite-pyroxene peridotite(pluton No.1)and norite-orthopyroxenite-harzburgite(pluton No.7),with ore-bearing lithofacies consisting primarily of olivine pyroxenite and pyroxenite facies.The Hongqiling deposit hosts stratoid,overhanging lentoid,veined,and pure-sulfide veined orebodies.Its ores principally contain metallic minerals including pyrrhotite,pentlandite,chalcopyrite,violarite,and pyrite.Despite unidentified magma sources of ore-bearing mafic-ultramafic rocks,it is roughly accepted that the magmatic evolution in the Hongqiling deposit primarily involved fractional crystallization and crustal contamination.The ore-forming materials were primarily derived from the upper mantle,mixed with minor crustal materials.The ore-bearing mafic-ultramafic rocks in the deposit,primarily emplaced during the Indosinian(208-239 Ma),were formed in an intense extension setting followed by the collisional orogeny between the North China Plate and the Songnen-Zhangguangcai Range Block during the Middle-Late Triassic.From the perspective of the metallogenic geological setting,surrounding rocks,ore-controlling structures,and rock assemblages,this study identified one favorable condition and seven significant indicators for prospecting for Hongqiling-type nickel deposits and developed a prospecting model of the Hongqiling deposit.These serve as valuable references for exploring similar nickel deposits in the region,as well as the deep parts and margins of the Hongqiling deposit.

Relationship between age of pregnant women with gestational diabetes mellitus and mode of delivery and neonatal Apgar score

BACKGROUND Gestational diabetes mellitus(GDM)refers to abnormal glucose tolerance during pregnancy,and it is often accompanied by obvious changes in glucose and lipid metabolism,and associated with adverse pregnancy outcomes.The incidence of fetal distress,polyhydramnios,puerperal infection,premature delivery,and macrosomia in pregnant women with GDM are higher than in those without GDM.AIM To analyze the relationship between age of pregnant women with GDM and mode of delivery and neonatal Apgar score.METHODS A total of 583 pregnant women with GDM who delivered in the Department of Obstetrics at our hospital between March 2019 and March 2022 were selected.Among them,377 aged<35 years were selected as the right age group and 206 aged>35 years were selected as the older group.The clinical data of the two groups were collected,and the relationship between age of the pregnant women with GDM and mode of delivery,maternal and neonatal outcomes,and neonatal Apgar score were compared.In the older group,159 women were classed as the adverse outcome group and 47 as the good outcome group according to whether they had adverse maternal and infant outcomes.The related factors of adverse maternal and infant outcomes were analyzed through logistic regression.RESULTS The number of women with assisted pregnancy,≤37 wk gestation,≥2 pregnancies,one or more deliveries,and no pre-pregnancy blood glucose screening in the older group were all higher than those in the right age group(P<0.05).The natural delivery rate in the right age group was 40.85%,which was higher than 22.33%in the older group(P<0.05).The cesarean section rate in the older group was 77.67%,which was higher than 59.15%in the right age group(P<0.05).The older group had a higher incidence of polyhydramnios and postpartum hemorrhage,and lower incidence of fetal distress than the right age group had(P<0.05).There was no significant difference in neonatal weight between the two groups(P>0.05).The right age group had higher Apgar scores at 1 and 5 min than the older group had(P<0.05).Significant differences existed between the poor and good outcome groups in age,education level,pregnancy mode,≤37 wk gestation,number of pregnancies,and premature rupture of membranes(P<0.05).Logistic regression showed that age,education level and premature rupture of membranes were all risk factors affecting the adverse outcomes of mothers and infants(P<0.05).CONCLUSION Delivery mode and Apgar score of pregnant women with GDM are related to age.Older age increases the adverse outcome of mothers and infants.

Expansion of the South China Sea basin:Constraints from magnetic anomaly stripes,sea floor topography,satellite gravity and submarine geothermics

The widely distributed E-W-trending magnetic anomaly stripes in the central basin and the N-Etrending magnetic anomaly stripes in the southwest sub-basin provide the most important evidence for Neogene expansion of the South China Sea.The expansion mechanism remains,however,controversial because of the lack of direct drilling data,non-systematic marine magnetic survey data,and irregular magnetic anomaly stripes with two obvious directions.For example,researchers have inferred different ages and episodes of expansion for the central basin and southwest sub-basin.Major controversy centers on the order of basinal expansion and the mechanism of expansion for the entire South China Sea basin.This study attempts to constrain these problems from a comprehensive analysis of the seafloor topography,magnetic anomaly stripes,regional aeromagnetic data,satellite gravity,and submarine geothermics.The mapped seafloor terrain shows that the central basin is a north-south rectangle that is relatively shallow with many seamounts,whereas the southwest sub-basin is wide in northeast,gradually narrows to the southwest,and is relatively deeper with fewer seamounts.Many magnetic anomaly stripes are present in the central basin with variable dimensions and directions that are dominantly EWtrending,followed by the NE-,NW- and NS-trending.Conversely such stripes are few in the southwest sub-basin and mainly NE-trending.Regional magnetic data suggest that the NW-trending Ailaoshan-Red River fault extends into the South China Sea,links with the central fault zone in the South China Sea,which extends further southward to Reed Tablemount.Satellite gravity data show that both the central basin and southwest sub-basin are composed of oceanic crust.The Changlong seamount is particularly visible in the southwest sub-basin and extends eastward to the Zhenbei seamount.Also a low gravity anomaly zone coincides with the central fault zone in the sub-basin.The submarine geothermic distribution demonstrates that the southwest sub-basin has a higher geothermal value than the central basin,and that the central fault zone is defined by a low thermal anomaly.This study suggests that NW-SE expansion of the southwest subbasin is later than the N-S expansion of the central basin with the sub-basin extending into the central basin and with both expansions ending at the same time.The expansion of southwestern sub-basin,similar to the Japanese Sea,is likely caused by left-lateral strike slip on the central fault zone in the South China Sea,which may have significance for finding oil and gas in this region.

A Study of the Differences Between Children's L1 and Adults' L2 in SLA

The differences between children' s L1 acquisition and adults' L2 acquisition based on a qualitative analysis are discussed and compared.Through systematic review of the relevant literature in light of the theories of L1 and L2 acquisition between children and adults,and analysis of the factors both influencing children s L1 and adults L2 acquisition.The findings show that two different acquisitions are distinguished in such aspects as in acquisition age,device,mode,environment and motivation,which conclude that children's L1 acquisition is effortless while adults' L2 acquisition is painful.

The Origin of Spirula spirula （Linne, 1758）

The article presents evidence regarding the origin of Spirula from spiral-shelled forms. The geological age of the species is revised from the Miocene to the Jurassic. The causes of the reorientation of the shell are elucidated. The mode of life of the mollusk is specified. The influence of the theory on facts perception is shown.

Wisdom and Old --age Pension： Reflections on China＇s Elderly Care Model

The care of the elderly is both a human basic human rights and a manifestation of social civilization. ＂Family pension＂ has always been the main pension model in China for thousands of years. However, with the transformation of social structure and population structure, the traditional ＂family pension＂ model is facing increasing challenges. While other emerging ＂institutions pension＂, ＂community pension＂ and failed to become a ＂family pension＂ alternative options, the role is limited. With the development of a variety of integrated technology, a new integrated technology based on the wisdom of the pension model began to emerge, wisdom pension as a new pension model has been in China with a preliminary attempt, it can maximize the elimination of the Chinese labor force The risk of population loss, the greatest extent to meet the needs of the elderly, the risk of dealing with old age, improve pension efficiency, and give the elderly equalization of power and ability, so as to fundamentally enhance the subjectivity of the elderly. But as a new exploration, but also faced with manyproblems, it is worth our in-depth thinking.

面向区域多主体平衡的独立平衡服务商运营双层优化研究

随着新型电力系统及新型电力市场的区域平衡模式发生转变,发用电主体参与市场交易的平衡需求逐步提高,亟待探索新型电力系统下的新型平衡服务模式。首先,在梳理国内外平衡机制实践的基础上,提出面向区域多主体平衡的独立平衡服务商概念及运营模式,深入分析电力市场中新型主体与独立平衡服务商运营模式的异同点。其次,构建以独立平衡服务商收益最大以及发用电主体平衡成本最小为目标的双层优化模型。最后,通过某地日典型发用电偏差情况的算例分析对所提模型进行验证。结果表明,独立平衡服务商的运营模式能够在降低市场主体平衡成本的同时保证服务商的收益,为新型电力系统的平衡模式提供了有益的探索。

我国医疗机构患者自备输注药品管理现状调查分析

目的调查我国医疗机构患者自备输注药品管理现状,发现风险点并探索改进措施。方法对全国部分医疗机构进行问卷调查,包括自备药品管理制度,自备药品医嘱同质化管理情况以及自备输注类药品的使用、配送、调配现状。结果有79.37%的医疗机构建立了自备药品管理制度;75.01%的医疗机构将自备药品使用纳入了医嘱记录;52.64%的医疗机构允许使用自备输注药品,但其配送和调配环节仍有改进空间。结论医疗机构应建立患者自备药品全流程管理制度,通过信息化手段促进其同质化管控,以保障患者用药安全。

基于ASP的网络化制造及相关技术

ASP模式的网络化制造为广大中小型制造企业跟随时代发展提供了一种有效的途径。介绍了ASP的产生、发展以及当前研究现状。指出市场的需求、技术的使能是基于ASP网络化制造发展的基础 ,提出了基于ASP网络化制造的两种运行模式 :联盟模式与星型模式 ,给出了一种基于ASP机械行业通用的技术体系结构 ,并对其关键技术作了一定分析。

锗晶体放电加工特性及进电方式研究

研究N型锗晶体放电加工中体现的单向导通性、表面电化学现象以揭示其特殊放电加工特征。试验发现N型锗晶体放电加工无法持续,其主要原因是进电接触面产生电解并生成不导电、不溶解的氧化物且阻塞在进电接触面缝隙内。为避免在进电接触区产生电解,设计表面涂覆碳浆进电法;为避免进电接触区产生不导电、不溶解氧化物,设计了电极随动进电法,并对这两种进电方式进行试验比较。结果表明,前者可以在一定时间内改善N型锗晶体进电,但仍不能达到长期稳定进电的效果,而后者则可以保障极间获得稳定和较小的极间电阻及持续稳定的进电效果。通过放电切割试验初步揭示半导体材料放电加工体现的放电期间电流爬坡上升、放电蚀除以热应力蚀除为主、极性效应需要进行拓展性解释等特殊的半导体材料放电加工特性。

扶贫模式的作用机理与评析—以新疆以工代赈为例

贫困问题是一个世界性课题,而反贫困始终是当今世界各国所面临的重大主题之一。改革开放以来,我国政府在反贫困等方面取得了举世瞩目的成就,但由于长期的历史因素和现实因素,贫困问题仍然是困扰中国社会的主要问题之一。本文以新疆以工代赈工作所取得的成效评析为实证基础,从区域系统发展的角度进行了扶贫模式的作用、实现成效过程的理论分析,研究和阐述了扶贫模式作为一种外部推动力,如何实现将外生性资源转化为贫困人口和地区的自我发展能力,促使扶贫过程成为增强社会资本的过程。

对国外法律援助模式之比较与借鉴

在世界范围内,法律援助模式的选择取决于多种因素。法律援助的管理模式主要有三类:由政府机构管理,由律师协会管理,由独立的委员会管理。在刑事法律援助以外,法律援助的提供模式也分为三类:专职律师模式,司法保障模式,混合模式。在研究其他国家法律援助模式的基础上,我们可以架构适合中国国情的法律援助模式。

预冷库温湿度控制与热工响应试验

对预冷库变频降温与全频降温两种温湿度控制模式进行了试验研究,发现变频降温到目标温度所需时间较长,但降温过程平稳,波幅小。研究了气流分布装置对库内温度场的影响,发现孔板均流方式对库内温度场的影响优于传统的单一风机送风、一拖二和夹套送风方式;对库门开启对库内热环境的冲击进行了分析,并提出了预防措施。

中日韩电信产业价值链模式对比分析

目前移动数据业务成为运营商利润的增长点,而发展数据业务关键在于处理与产业价值链各环节之间关系,在这方面日韩两个国家发展比较成熟。分析日韩电信产业价值链模式的特点,并与国内的几种价值链模式进行对比,从客户目标、SP/CP管理、与终端关系、利益分成与环境适应性等几个方面总结出我国电信产业价值链和谐发展的对策建议。

供应链管理创新决策研究

通过对戴尔公司的全球供应链管理研究,三星集团“三星模式”工业园的建立和对海尔集团的SBU经营模式的分析,指出在经济全球化背景下供应链决策创新的重要性,并提出供应商参与产品创新和管理创新的新策略。

从“科层式供给”到“合作化供给”——街区公共服务供给机制的个案分析

就经验层面而言,政府在很长一段时间内都是街区公共服务的直接供给主体,或者由政府先将服务分配给其代理组织———单位,然后再由单位直接分配到个人。这种基于政府科层体系的供给机制可称为“科层式供给”,其特征是供给渠道的垂直性和单向度性。在街区公共服务供给短缺甚至缺失的困境下,寻求可能而可行的街区公共服务供给机制便有了必然性。个案研究表明,目前的街区公共服务供给机制,已经从原来建立在行政权力基础上的“科层式供给”趋向于街区组织在资源交换基础上的“合作化供给”,并达成共同治理或共同生产的效果。

在养老服务业中推广应用PPP模式的风险与收益分配分析

社会化养老问题已成为社会的焦点问题。吸引并鼓励社会资本进入养老服务领域,创新养老服务模式是历史的必然选择。PPP作为一种基于合作、优势互补、风险分担、利益共赢的公私合作模式,其在养老服务业中的推广应用重点是解决好风险和收益的科学对等分配;对比多种模式下的收益分配效率,发现基于风险分担的Shapley值方法更能真实公平地反映公私双方的贡献度,也有利于实现项目总收益最优,提高社会公共服务水平与质量。

面向ASP服务基于B/S模式的WEB-LCAPS的研究与开发

依据ASP理念 ,开发了一个基于web环境的激光切割自动编程系统 -WEB -LCAPS。阐述了WEB -LCAPS基于B/S模式的三层信息体系结构模式及基于Java的具体编程原理 ,论述了基于ASP理念的WEB -LCAPS客户管理、零件信息输入、识别及提取。

社会养老服务供给主体间的职能与合作

建立一个供给主体多元、功能互补、职责明确、有效合作的社会养老服务体系是解决中国养老服务供需失衡问题的关键。基于合作伙伴关系的理论阐释,理顺在社会养老服务体系中政府、非营利性组织、营利机构各自的角色和职能,探讨政府与非营利组织、政府与营利机构的合作逻辑,可以为提高养老服务供给主体的合作效率提供理论参照。