抗乙肝核苷酸类药物市场进行时

进入新世纪后，全球肝病诊疗水平取得了长足进步。肝病治疗领域新药的问世，推动着肝病治疗市场的快速发展。 目前，人类已发现的6种病毒性肝炎中，甲型、戊型肝炎是通过胃肠道传播，属自限性疾病，一般不会发展为慢性肝炎。丁型肝炎病毒是缺陷病毒，只有依附于乙型肝炎病毒才能复制：庚型肝炎不会引起大范围传播。仅有乙型和丙型肝炎是严重危害人体健康的病毒性传染病。     

科学家开发生物芯片传感器，可快速检测H1N1病毒

加拿大温尼伯科学家正在致力于开发一种便携式的低成本仪器——生物芯片传感器。该设备能够迅速检测出某人是否携带或感染H1N1病毒。     

国内乙型肝炎治疗药物市场分析

乙型肝炎是由乙型肝炎病毒(HBV)引起的一类影响力较大的传染性疾病,对治疗HBV感染药物的研究也一直是药物学家的重点课题.本文在分析HBV感染的流行病学、临床用药现状的同时,还研究了治疗HBV感染药物的研发现状、市场竞争情况,并对现有药物的价格情况进行了统计分析,为新产品的研发上市提供参考依据.     

煤矿设备维修应用无损检测技术的研究

二十世纪八十年代,部分发达国家在遭受设备故障带来的损失后,联合开创了在当时处于新兴领域的"设备诊断技术",这项技术能够在不完全拆卸乃至保持设备运作的基础上,系统地把握设备状况,并判断设备故障的部件。经过几十年的不断发展,在原有设备诊断技术的基础上逐渐完善并加以新的理念,无损检测技术由此诞生。将无损检测技术应用于煤矿设备维修中,对煤矿业的安全、高效生产具有十分重要的意义。     

油气管道缺陷无损检测与在线检测诊断技术的探析

为对油气管道的安全系数进行有效提高,有效预防不安全事故的发生,油气管道的检测是一种非常重要的途径。因为人们对天然气的运用变得越来越为广泛,所以油气管道在线检测技术是非常重要的。在油气管道运行过程中,通过有效运用在线检测诊断技术,能够有效检测油气管道中存在的缺陷问题,基于此,本文对油气管道缺陷无损检测与在线检测诊断技术进行深入研究,包括射线无损检测法、超声波检测方法、涡流检测法等,具有重要意义。     

抗宫颈癌疫苗及其开发的挑战和成就（1）

2008年的诺贝尔医学奖在2008年10月7日授予三位欧洲科学家以表彰他们发现了导致两个毁灭性疾病，艾滋病和子宫颈癌的病因，HIV和HPV病毒。此次，一半的诺贝尔医学奖项将由两名发现感染HIV病毒会导致艾滋病的法国病毒学家Francoise Barré-Sinoussi博士和Luc A.Montagnier博士分享。     

核企战“疫”,进军新冠病毒检测

中核集团中国同辐下属企业——武汉中核中同蓝博医学检验实验室有限公司自2月26日获批可开展新冠病毒核酸检测后,于3月4日从当地疾控中心接到第一批检测样本并首战告捷. 新型冠状病毒核酸检测,对于临床早发现、早诊断、早隔离、早治疗至关重要,是有效防控新冠肺炎疫情的关键技术支撑.为了帮助更多病患得到及时的检测确诊及收治,在中核集团的支持下,武汉蓝博作为第三方医学检验实验室,向当地疫情防控指挥部主动请战,加入了新冠病毒核酸检测机构的行列中.     

旅游企业技术创新能力的要素构成与综合评价

旅游企业技术创新能力是指旅游企业通过引入或开发旅游技术来实现旅游资源综合效益最佳化的能力.它是由不同层次或方面的能力要素相互关联组合而成的能力系统.科学、定量地对它进行综合评价,这对于有效培育旅游企业创新能力、实现经济和社会的持续协调发展,将具有重要意义.     

环境无机分析化学中的仪器分析技术

文章介绍了当前环境无机分析化学中的仪器分析技术,介绍了这些仪器分析方法的优劣以及特点,并分析了将仪器分析运用于环境无机化学分析中的优势,发现采用仪器分析进行环境无机化学分析具有能够做到连续化检测、做到环境检测标准化以及展开对化学元素的定量定性分析的优势。     

基于网络技术的锅炉检测及控制研究

网络技术被广泛应用在不同领域中,已在锅炉检测系统当中发挥了重要作用。锅炉的普及对检测技术提出了新的要求,将辅助设备的工作原理与网络技术进行结合,可以促进锅炉检测的智能化发展。介绍锅炉的构造以及工作原理,指出锅炉检测的重要意义和检测方法,分析基于网络技术的锅炉检测及控制。     

实行工程量清单招标中问题的探讨

在工程量清单招标过程中，由于施工企业对招标文件理解不足，又缺少企业内部定额，以及在管理体制和管理模式上存在着缺陷，所以制约了工程量清单报价的竞争性。在分析实行工程量清单招标中问题的基础上，提出了加强工程量清单报价的合理化建议。只有积极应对，才能适应工程量清单计价模式，增强企业竞争活力。     

Managing B2B customer churn,retention and profitability

It is now widely accepted that firms should direct more effort into retaining existing customers than to attracting new ones. To achieve this, customers likely to defect need to be identified so that they can be approached with tailored incentives or other bespoke retention offers. Such strategies call for predictive models capable of identifying customers with higher probabilities of defecting in the relatively near future. A review of the extant literature on customer churn models reveals that although several predictive models have been developed to model churn in B2C contexts, the B2B context in general, and non-contractual settings in particular, have received less attention in this regard. Therefore, to address these gaps, this study proposes a data-mining approach to model non-contractual customer churn in B2B contexts. Several modeling techniques are compared in terms of their ability to predict true churners. The best performing data-mining technique (boosting) is then applied to develop a profit maximizing retention campaign. Results confirm that the model driven approach to churn prediction and developing retention strategies outperforms commonly used managerial heuristics.     

己烯—1在我国生产的前景

叙述了己烯－１是提高线性聚乙烯性能的重要单体之一。由于我国目前无法生产,只能进口。提出我国生产己烯－１的重要性和必要性。     

Employee Mobility and Interfirm Relationship Transfer: Evidence from the Mobility and Client Attachments of United States Federal Lobbyists, 1998–2014

Research summary : Employee mobility can erode competitive advantage by facilitating interfirm knowledge and relationship transfer. This study investigates the latter and identifies factors that influence the likelihood of its occurrence. Using a novel database that tracks the employment and client attachments of U.S. federal lobbyists, I show that repeated exchange with employees (firms) increases (decreases) the likelihood clients follow employees who switch firms. Structurally, multiplexity reduces the likelihood of client transfer and weakens the effect of employee–client repeated exchange, with the multiplexity effect strongest when team members have specialized expertise. By examining the main and interactive effects of repeated exchange, multiplexity, and specialized human capital, this study extends prior work by demonstrating how individual, organizational, and structural relationship characteristics affect client transfer and retention ex‐post employee mobility . Managerial summary : When do clients follow employees who switch firms? What can firms do to guard against it? These questions are important in service‐based industries where clients may become loyal to individual employees within the firm rather than to the firm itself. This study provides evidence that helps practicing managers: (a) identify which clients are most at risk of defecting if employees exit, and (b) structure relationships in ways that mitigate the likelihood that employee exit results in client loss. Findings suggest that a client is more likely to defect when she has extensive history working with the exiting employee, particularly if the employee was the sole link between the client and firm. Managers, however, can reduce the risk of client loss following employee exit by structuring relationships so that clients work with teams of employees rather than exclusively with an individual and by increasing the degree of specialization within these teams . Copyright © 2017 John Wiley & Sons, Ltd.     

超精密分馏法生产丁烯—1装置的技术经济分析

介绍采用超精密分馏法生产丁烯－１装置的工艺路线及特点，并对８０００ｔ／ａ丁烯－１装置的经济效益进行了测算，指出国内目前采用超精密分馏法生产丁烯－１在技术与经济上都是较为理想的工艺方法。值得积极推广建议。     

一个投资方案的优化实例

根据某大型联合企业的现状和生产发展规划项目表，探讨如何使有限的自有资金发挥尽可能大的经济效益。根据规划模型的解，得出了企业在有限的资金条件下，应考虑新上哪 些技术和基本建设项目。     

Presumptive adaptation and the effectiveness of knowledge transfer

Adaptation almost invariably accompanies the cross‐border transfer of firm‐specific practices. The existing literature contains two conflicting approaches to adaptation. The first, more traditional approach, following institutional, motivational, and pragmatic efficiency considerations, presumes that a modified practice can be fine tuned, stabilized, and institutionalized without consulting a working example and that practices should thus be adapted as quickly as possible to create fit with the local environment. The second approach argues, instead, for the need to maintain the diagnostic value of the original practice by adapting cautiously and gradually. In this paper, we report an in‐depth field investigation of the relationship between presumptive adaptation, adaptation that removes the diagnostic value of the original practice, and transfer effectiveness. The setting is the transfer of franchising knowledge across borders. We investigate how adherence to recommended practices affects the rate of network growth in the host country. We find that presumptive adaptation stalls network growth while a conservative approach to adaptation, which basically entails close adherence to the original practice, results in remarkably rapid network growth. We conclude that presumptive adaptation of knowledge assets could be detrimental to performance. Copyright © 2006 John Wiley & Sons, Ltd.     

原油集输系统中输油泵故障诊断技术的应用

指出了输油泵监控与故障诊断技术在油田站场实施的意义，并介绍了故障诊断的一般方法和诊断标准。     

Examining CEO succession and the role of heuristics in early‐stage CEO evaluation

This study develops and tests predictions regarding factors that influence early‐stage CEO evaluation. We suggest that contextual elements of the CEO succession process will influence the heuristics that directors employ to aid in their early evaluation of a CEO because traditional performance metrics, such as firm performance, are less diagnostic of CEO quality in the first years of their tenure. Broad empirical support for our theoretical arguments is shown in a sample of Fortune 1000 firms. Copyright © 2012 John Wiley & Sons, Ltd.     

灰色预测模型在陕西省电力消费量预测中的应用

电力消费是人们日常生活必不可少的,随着城市的大力发展,有效地对电力消费进行预测显得越来越重要。本文采用灰色预测模型GM(1,1),建立陕西省电力消费量预测GM(1,1)模型,验证预测精度,进一步对2011-2015年陕西省的电力消费量进行预测,为今后陕西省的电力规划提供参考价值。