共查询到20条相似文献,搜索用时 62 毫秒
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农建云 《中国资源综合利用》2024,(1):80-83
寿宁县湖潭叶蜡石矿为与火山作用相关的火山热液交代矿床,矿体呈似层状、扁豆状的低角度顺层产出。区域岩浆活动强烈,断裂构造及火山环状构造发育,叶蜡石矿化等蚀变较为普遍,且分布有已知的叶蜡石矿点,成矿地质条件有利,研究认为矿区及其外围具有良好的找矿远景。 相似文献
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远山的希冀浙江省泰顺县山区优先发展教育扶贫吴永春泰顺是资源“上乘富饶”之地,是“中国茶叶之乡”国家级茶叶出口基地县,有“世界蜡都”龟湖叶蜡石矿、储量丰盛的洋溪锡矿和“竹器王国”司前竹木生产加工基地;泰顺还有生物种源天然基因库——乌岩岭国家级自然保护区... 相似文献
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耐热性强的耐酸材料 代号:HT2002K1286 用途:在变温条件下工作的设备的内衬 应用领域:黑色和有色冶金企业、化学工业 简介:耐酸陶瓷材料的组成:扎纳达乌尔地区生产的粘土——50%,尼科利斯基地区生产的叶蜡石——40%,长石精选矿——5%,多金属矿选矿尾料——5%。耐酸材料的物理化学性能:吸水率——4.2%,耐酸性——98%,耐热性——12级,抗冻性——140级,抗弯机械强度——50兆帕。 相似文献
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从饭店视角对国内外服务业绿色管理的研究现状进行分析:研究时间方面,国内外相近,都主要从本世纪初开始研究;研究内容方面,国外研究面较广,涉及绿色管理现状、对经营绩效的影响、影响因素、实施措施、游客住店环保行为决策等,国内研究内容较少,主要对绿色管理现状、存在的问题和实施对策进行了初步探讨;研究方法方面,国外研究大多采用实证方法和量化方法,而国内研究方法单一,以定性描述为主。鉴于现阶段绿色管理实践的需要,还有许多重要的问题亟待研究与解决。 相似文献
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科技人才是欠发达地区的重要战略资源,科技人才的开发与培养是欠发达地区创新发展的重要战略措施。国内外学者一般从欠发达地区、科技人才、人才开发与培养等几个方面进行研究。通过梳理相关政策、研究文献,总结相关经验,从欠发达地区、科技人才、人才开发与培养三个理论角度进行了研究总结,并提出当前研究中存在的主要问题与未来研究方向,对于欠发达地区建立科技人才管理机制具有重要的理论价值和指导意义。 相似文献
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ZHU Zhi-yu 《重庆与世界》2014,31(11):6-11
The bio-control potential of rhizospere bacteria Pseudomonas fluorescens against plant-parasite nematode had been demonstrated. P. fluorescens had shown the effect to enhance tobacco resistance to root-knot nematode Meloidogyne incognita. Inoculation with P. fluoreseens in tobacco could lead to significant reductions in the number of juveniles that penetrated tobacco root and further life stage development of the juveniles. The number of juveniles penetrated into tobac- co root in treatment with P. fluorescens is significantly different from CK at 2DAI, 6DAI, 8DAI and 10DAI. Significant reduction and delayed development of juveniles that penetrated into tobacco root and treated were observed in treatment at 14DAI, 21DAI, 28DAI and 35DAI. In addition, P. fluoreseens treatment leads to a significant reduction in the number of eggs per egg-mass at 35 DAI. The results show P. fluorescens induced a continuously suppression on root-knot nema- tode M. incognita throughout their entire early infection phase of root penetration, subsequent life stage development and reproduction. 相似文献
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This paper quantifies the local impacts of mechanized logging on forest-dependent communities in Indonesia, before and after decentralization. A conceptual framework incorporates financial, social, enforcement, rent-seeking, and environmental impacts. Using data from 60 communities in East Kalimantan, the empirical results suggest that significantly more households received financial and in-kind benefits after decentralization compared to before. Many communities engaged in self-enforcement activities against firms both before and after decentralization. Post-decentralization, a significantly higher proportion of households perceived community forest ownership. There were few significant differences in perceived environmental impacts. Little evidence exists of a post-decentralization trade-off between environmental and financial contractual provisions. 相似文献
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商业银行的特殊性体现在风险性、外部性和多重治理目标上,尤其集中体现在风险管理的本质上。风险管理日益成为现代商业银行的主体活动和核心职能,资本管理成为现代商业银行风险管理的核心。在整合EVA和RAROC指标的基础上。文章构建了以资本管理为核心的银行治理的综合评价指标,以求真实反映银行经营的成果,有效衡量风险收益和风险成本的对比关系,从而反映以资本管理为核心的银行风险管理的过程、能力和效率。 相似文献
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Torsten J. Gerpott und Nejc M. Jakopin 《Zeitschrift für Planung & Unternehmenssteuerung》2008,19(1):7-37
Zusammenfassung Die vorliegende Studie analysiert für 87 Neuprodukteinführungen (NPE) und Auslandsmarkteintritte
(AME) von Telekommunikations(TK)-Diensteanbietern in Deutschland, zu denen 42 Schlüsselinformanten
in einer schriftlichen Befragung Auskunft gaben, (1) inwieweit deren zeitliche Eintrittspositionierung durch
Marktcharakteristika und Unternehmensressourcen erkl?rbar ist sowie (2) inwieweit und gegebenenfalls
unter welchen unternehmensexternen und -internen Situationsbedingungen deren Markteintrittstiming mit dem
wahrgenommenen Eintrittserfolg assoziiert ist. Ein früher Markteintritt wurde dann realisiert, wenn
die Wettbewerbsintensit?t im adressierten Gesch?ft niedrig und das Budget für den Expansionsschritt
überdurchschnittlich ausfielen. Zwischen dem Markteintrittstiming und der Beurteilung des Eintrittserfolgs
bestand ein nicht monotoner, umgekehrt U-f?rmiger Zusammenhang: Frühe Folger wiesen signifikant
bessere Erfolgswerte auf als Pioniere und sp?te Folger, deren Erfolgsniveaus nicht signifikant divergierten.
In einer Industrie, die durch starke externe Netzeffekte gepr?gt ist, fallen offenbar die Nachteile
eines Markteintritts als Pionier oder sp?ter Folger st?rker ins Gewicht als die Vorteile dieser
beiden zeitlichen Eintrittspositionierungen. Unabh?ngig vom Markteintrittstiming wurden NPE/AME von
TK-Unternehmen als erfolgreicher eingestuft, wenn sie sich in einen Markt mit stark wachsender Nachfrage
und aufeinander abgestimmt (re)agierenden Wettbewerbern mit qualitativ überdurchschnittlichen, abw?rtskompatiblen,
erprobbaren und wenig erkl?rungsbedürftigen TK-Diensten engagierten.
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Natasha Hamilton-Hart Günther G. Schulze 《Bulletin of Indonesian Economic Studies》2016,52(3):265-295
Indonesia’s economic growth picked up slightly in mid-2016 but remains below the level demanded by government and popular aspirations. Despite a plethora of reforms intended to increase efficiency and productivity, some policies are perverse and longstanding problems of implementation remain. The share of manufacturing has declined, the real exchange rate has appreciated, exports have dwindled, and growth has been trending downwards. The banking sector is stable but inefficient, with wide net interest margins and numerous barriers to competition. Trade protection, particularly in basic food commodities, has created high costs that weigh particularly heavily on the poor. Declining government revenues have placed increasing pressure on the public budget, even as the current administration aims to increase spending on infrastructure and welfare and to enhance productivity. In an effort to increase revenues, the government has announced a tax amnesty program and other measures. In addition, Sri Mulyani Indrawati, the new finance minister, has taken steps to cut non-essential expenditure in order to secure high spending on infrastructure and at the same time keep within the 3% budget deficit limit stipulated by law. Although the overall debt situation is not yet alarming, declining revenues and budget cuts that do not fully reflect this decline are putting pressure on increasing debt levels. The government’s high-profile tax amnesty program was the major policy initiative implemented in the second half of 2016 that aimed to relieve this pressure. Despite widespread criticism of, and scepticism about, the tax amnesty (both within and outside Indonesia), its first phase had a much higher participation rate than most independent accounts expected. Revenues raised so far through the amnesty are less than 60% of the official target, but this is actually a strong result for the short term. The bigger question, however, is whether the amnesty is a key element of a more encompassing strategy to overhaul the system of taxation and tax administration. 相似文献
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In this paper, I analyze the causes of the prolonged slowdown of the Japanese economy in the 1990s and find that the stagnation of investment, especially private fixed investment, was the primary culprit. I then investigate the causes of the stagnation of household consumption during the 1990s and find that the stagnation of household disposable income, the decline in household wealth, and increased uncertainty about the future are among the contributing factors. Finally, I consider whether demand side factors or supply side factors were more important as causes of the prolonged slowdown of the Japanese economy in the 1990s and conclude that the former (especially misguided government policies) were probably more important. 相似文献