什么推动高科技企业高速成长——基于小米科技公司的案例分析

随着经济全球化、知识经济一体化的到来,当今高科技产业的发展可谓日新月异。面对激烈的市场竞争,高科技企业的高速成长问题逐渐引起专家学者、企业家和政府部门的关注。该文在高科技企业成长理论基础上,建立了高科技企业核心能力、网络能力和融资能力对高科技企业成长的影响模型,以小米科技为例分析高科技企业高速成长的能力基础。结果发现,小米科技能够以惊人的速度发展得益于自身三种能力的组合:以"铁人三项战略"为基础的核心能力、由众多外包生产商、供应商构成的完善企业网络架构和充足的内外源融资渠道。     

An improved sampling plan by variables inspection with consideration of process yield and quality loss

Repetitive group sampling (RGS) plan, a modified version of single sampling (SS) plan, has been shown to be more efficient than the SS plan for lot sentencing. However, because it does not consider the valuable sample information from preceding lots, that could reduce its sampling efficiency and discriminatory power. Therefore, this study proposes a modified-RGS plan by considering the quality history of preceding lots based on the C_pmk index. Additionally, the mathematical model for the plan parameters is formulated such that the objective function is to minimize the average sample number (ASN), and the required quality levels and risks as specified by producer and consumer are satisfied. The performance of the proposed plan is examined and compared with traditional sampling plans. Finally, an example is presented to illustrate its applicability.     

Adopting a financial capability and asset-building curriculum at historically Black colleges and universities

ABSTRACT

Social workers currently engage in financial capability practice with low-income and financially vulnerable individuals and families in diverse practice settings, but typically lack professional preparation for this work. In response, several schools of social work have begun adopting financial capability curricula. Using an in-depth interview methodology, this study examines the adoption of a curriculum in financial capability and asset building (FCAB) from the perspectives of faculty and administrators (N = 19) at four historically Black colleges and universities (HBCUs). Findings show that key reasons for curriculum adoption are prior working relationships and trust, relevance of FCAB content to student and community needs, and alignment with program, institutional, and professional goals. Using the diffusion of innovation theory to understand curriculum adoption in HBCUs suggests that perhaps trust and relationship building are particularly important in the case of minority serving institutions.     

《夜莺颂》中的“消极感受力”思想及诗歌意象

约翰·济慈是十九世纪英国浪漫主义诗歌领域的杰出代表,“消极感受力”是他提出的独特美学思想,对其诗歌创作实践影响颇大,具有巨大的阐释空间。文章主要论述了“消极感受力”思想产生的背景和成因,并以《夜莺颂》中的意象运用为范例,分析和探讨了“消极感受力”思想在本诗中的体现。     

A new t-chart using process capability index

Control charts play a vital role to enhance the efficiency of the manufacturing process. In many situations, the quality characteristic of interest to be monitored follows a non-normal distribution. In this article, we propose a new control chart using the process capability index when the quality characteristic follows the exponential distribution. The performance of the proposed chart is evaluated using the Monte Carlo simulation. Tables are presented for various values of specified average run length and sample size. The use of the proposed control chart is discussed with the help of an example.     

SkSP-R sampling plan based on process capability index

In this paper, we present an optimal designing methodology for the skip-lot sampling plan (SkSP) of type SkSP-R based on the most widely used process capability index (PCI) C_pk. The SkSP-R plan is one of the SkSPs that incorporate the provision of the reinspection concept. In order to design the optimal parameters, we consider both symmetric and asymmetric fraction non conforming cases. Tables are also constructed to determine the optimal parameters by formulating an optimization problem. The advantages of the proposed plan over the existing plan are also discussed. Application of the plan is explained with a real-life example.     

Developing and designing of an efficient variables sampling system based on the process capability index

Process capability indices (PCIs) are extensively used in the manufacturing industries in order to confirm whether the manufactured products meet their specifications or not. PCIs can be used to judge the process precision, process accuracy, and the process performance. So developing of sampling plans based on PCIs is inevitable and those plans will be very much useful for maintaining and improving the product quality in the manufacturing industries. In view of this, we propose a variables sampling system based on the process capability index C_pmk, which takes into account of process yield and process loss, when the quality characteristic under study will have double specification limits. The proposed sampling system will be effective in compliance testing. The advantages of this system over the existing sampling plans are also discussed. In order to determine the optimal parameters, tables are also constructed by formulating the problem as a nonlinear programming in which the average sample number is minimized by satisfying the producer and consumer risks.     

Variation,contact and social indexicality in the acquisition of (ing) by teenage migrants1

We discuss some apparent limits on the acquisition of variation suggested by our recent work exploring how teenage migrants to the U.K. acquire local norms of variation. We focus on the constraints on the (ing) variable that emerged from a multivariate analysis. We find evidence for a systematisation of the variable among immigrants, involving
some linguistically and cognitively predictable constraints, but also the emergence of social constraints not found in the teenage native speakers. We argue that transformation of variable constraints is a necessary artefact of the inherent complexity of sociolinguistic variables, particularly those with social indexicality. This research note: (1) delineates some theoretical and practical questions involved in incorporating social indexing in variationist studies, especially of non‐native speakers; and (2) further explores reallocation (transformation) in the study of language contact. Wir behandeln mögliche Grenzen des Erwerbs soziolinguistischer Variation, die unsere jüngste Studie zum Erwerb lokaler Variationsnormen jugendlicher Immigranten in Großbritannien zu zeigen scheint. In unserer Ergebnisdarstellung konzentrieren wir uns auf die Faktoren, die die Verwendung der (ing) Variable beschränken. Die Ergebnisse gingen aus einer multivariaten Datenanalyse hervor. Wir zeigen, dass die Variable unter Immigranten systematisiert wird, was das Erscheinen einiger linguistischer und kognitiv voraussagbarer Faktoren aber auch einiger interessanter sozialer Faktoren einschließt, die nicht unter den jugendlichen Muttersprachlern gefunden werden konnten. Wir zeigen weiterhin, dass die Umwandlung variabler Faktoren ein notwendiges Artefakt der inhärenten Komplexität soziolinguistischer Variablen ist, insbesondere von Variablen mit sozialer Indexikalität. Diese Notiz umreißt einige praktische Fragen in Bezug auf (1) die Einfügung sozialer Indizes in variationslinguistische Studien, insbesondere solcher, die Nicht‐Muttersprachler betreffen, und (2) die weitere Erforschung des Prozesses der Umverteilung in der Untersuchung von Sprachkontaktphänomenen. [German]     

教师教学监控能力的培养

教师教学监控能力是教师素质构成的核心要素,提高教师教学监控能力,是提高教师素质的关键。这种能力主要包括：一、教师对自己教学活动的事先计划安排;二、对自己实际教学活动进行有意识的监察、评价和反馈;三、对自己的教学活动进行调节、矫正和有意识的自我控制。