SMITHERS ASSESSES WORLD CONSUMPTION OF HIGH-PERFORMANCE & EFFECT PIGMENTS AT 217,100 TONNES, WORTH $6.22 BILLION

2020 ◽  
Vol 2020 (11-12) ◽  
pp. 1-2
Author(s):  
Reg Adams
Keyword(s):  
High Performance ◽  
Performance Effect ◽  
World Consumption

Thermal Challenges in 3D Stacks

2012 ◽  
Vol 2012 (DPC) ◽  
pp. 001354-001372
Author(s):  
Susheela Narasimhan ◽  
Herman Chu ◽  
Mudasir Ahmad ◽  
Li Li
Keyword(s):  
Real Estate ◽  
Heat Source ◽  
Thermal Management ◽  
Thermal Performance ◽  
Hot Spots ◽  
High Performance ◽  
Mechanical Stresses ◽  
Performance Effect ◽  
New Challenges ◽  
Silicon Vias

Thermal Management of high performance 3D SiP Modules is gaining momentum in telecommunication and networking applications. With increasing need for bandwidth and reduced real estate on boards, there is an acute need for 3D SiP modules. At the same time, the stacked modules come with a host of new challenges in terms of thermal management, packaging, thermo-mechanical stresses etc. This study looks at one such module with stacked dies for memories along with another high performance silicon all under a single lid. The study focuses on the effect of underfill materials on thermal performance, effect of through silicon vias, effect of non-uniform heat source on hot spots on the die etc. It will also focus on thermal management of a single module as well as a series of modules in a networking application. The effect of thermo-mechanical stresses will also be investigated and conclusions drawn on the effect of each of these parameters.

scholarly journals The Performance Effect of HPWS and Relational Coordination on Branch Efficiency: A Data Envelopment Analysis Approach

2020 ◽  
Vol 4 (2) ◽  
pp. 163-180
Author(s):  
Muhammad Saddique ◽  
Zahoor Khan ◽  
Saleem Gul
Keyword(s):  
Data Envelopment Analysis ◽  
High Performance ◽  
Effective Communication ◽  
Performance Outcomes ◽  
Analysis Approach ◽  
Data Envelopment ◽  
Relational Coordination ◽  
Work Systems ◽  
Performance Effect ◽  
High Performance Work Systems

This study is set to analyse the role of high-performance work systems which is mainly aimed to boost knowledge, skills, and abilities of human resources in the form of effective communication and better coordination termed as relational coordination and subsequently improving performance. Using the theory of relational coordination that explains the relational aspects of coordination along with effective communication to influence performance outcomes, the study obtained data from 218 branches through survey focusing on employees’ perspectives regarding high-performance work system in anticipating relational coordination among employees in performing focal work process of branch banking functions. The data obtained from officers was analysed through the Data Envelopment Analysis approach to identify efficient bank branches pivotal in formulating optimal policy measures. Results indicated that high-performance work systems envisaged relational coordination via the intervention of deposits and profitability. The findings contribute to the literature of high-performance work systems by indicating what interventions in high-performance work systems and the relational coordination may lead to bringing down operations cost or making improvements in the delivery of banking services. The study also implies that compared with managerial perspectives in the field, employees’ perspectives provide significant insights about the relational process in explaining how a well-coordinated approach towards HR systems establish the social context for better HRM practices, enhancing.

Which Way to High Performance? Comparing Performance Effects of High-Performance Work System Components in Small- to Medium-Sized Establishments

ILR Review ◽  
2019 ◽  
pp. 001979391989366 ◽  
Author(s):  
Jeffrey B. Arthur ◽  
Andrew O. Herdman ◽  
Jaewan Yang
Keyword(s):  
High Performance ◽  
Relative Effectiveness ◽  
Customer Contact ◽  
High Involvement ◽  
Performance Effect ◽  
Job Level ◽  
Performance Effects ◽  
High Performance Work Practices ◽  
High Performance Work System ◽  
Internal Promotions

The authors examine variation in firm choices to invest in HR practices. They identify three approaches: investments in high-involvement programs (such as employee participation and teams); in high-commitment practices (such as internal promotions and job security); and in ability-enhancing selection and training programs. The authors test the performance effect of these choices in a sample of 165 small- and medium-sized hotel establishments (SMEs). They also consider how job-level differences in skill requirements and customer contact affect the relative effectiveness of these three groups of high-performance work practices. Consistent with the authors’ predictions, findings show that, on average, the group of high-commitment practices has the strongest relationship with SME performance. However, the performance effect of high-involvement practices is significantly stronger for front desk jobs compared to housekeeping jobs.

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

Vacuum System to Minimize the Specimen Contamination of High-Performance EM

1977 ◽  
Vol 35 ◽  
pp. 68-69
Author(s):  
N. Yoshimura ◽  
K. Shirota ◽  
T. Etoh
Keyword(s):  
Electron Microscope ◽  
High Speed ◽  
High Performance ◽  
High Vacuum ◽  
Vacuum System ◽  
Pump System ◽  
Pumping System ◽  
Diffusion Pump ◽  
Almost All ◽  
Cascade Type

One of the most important requirements for a high-performance EM, especially an analytical EM using a fine beam probe, is to prevent specimen contamination by providing a clean high vacuum in the vicinity of the specimen. However, in almost all commercial EMs, the pressure in the vicinity of the specimen under observation is usually more than ten times higher than the pressure measured at the punping line. The EM column inevitably requires the use of greased Viton O-rings for fine movement, and specimens and films need to be exchanged frequently and several attachments may also be exchanged. For these reasons, a high speed pumping system, as well as a clean vacuum system, is now required. A newly developed electron microscope, the JEM-100CX features clean high vacuum in the vicinity of the specimen, realized by the use of a CASCADE type diffusion pump system which has been essentially improved over its predeces- sorD employed on the JEM-100C.

Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

1970 ◽  
Vol 28 ◽  
pp. 360-361
Author(s):  
John W. Coleman
Keyword(s):  
Boundary Conditions ◽  
High Performance ◽  
Force Fields ◽  
Optical Design ◽  
Direct Conversion ◽  
Design Engineering ◽  
Design Data ◽  
Scalar Potentials ◽  
Geometric Elements ◽  
At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

Prospects for convergent beam electron diffraction with a 200kV cold field-emission transmission electron microscope

1991 ◽  
Vol 49 ◽  
pp. 466-467
Author(s):  
J W Steeds ◽  
R Vincent
Keyword(s):  
Field Emission ◽  
High Performance ◽  
Small Diameter ◽  
Convergent Beam Electron Diffraction ◽  
Zone Axis ◽  
Medium Voltage ◽  
Transmission Electron ◽  
Good Crystallinity ◽  
Special Modification ◽  
Convergent Beam

We review the analytical powers which will become more widely available as medium voltage (200-300kV) TEMs with facilities for CBED on a nanometre scale come onto the market. Of course, high performance cold field emission STEMs have now been in operation for about twenty years, but it is only in relatively few laboratories that special modification has permitted the performance of CBED experiments. Most notable amongst these pioneering projects is the work in Arizona by Cowley and Spence and, more recently, that in Cambridge by Rodenburg and McMullan.There are a large number of potential advantages of a high intensity, small diameter, focussed probe. We discuss first the advantages for probes larger than the projected unit cell of the crystal under investigation. In this situation we are able to perform CBED on local regions of good crystallinity. Zone axis patterns often contain information which is very sensitive to thickness changes as small as 5nm. In conventional CBED, with a lOnm source, it is very likely that the information will be degraded by thickness averaging within the illuminated area.

Current State of Biological High-Resolution Scanning Electron Microscopy

1988 ◽  
Vol 46 ◽  
pp. 180-181 ◽  
Author(s):  
Klaus-Ruediger Peters
Keyword(s):  
High Performance ◽  
Low Voltage ◽  
Backscattered Electrons ◽  
Lens Position ◽  
Low Voltage Operation ◽  
Signal Collection ◽  
Probe Size ◽  
Electron Microscopes ◽  
Scanning Electron Microscopes ◽  
Scanning Electron

A new generation of high performance field emission scanning electron microscopes (FSEM) is now commercially available (JEOL 890, Hitachi S 900, ISI OS 130-F) characterized by an "in lens" position of the specimen where probe diameters are reduced and signal collection improved. Additionally, low voltage operation is extended to 1 kV. Compared to the first generation of FSEM (JE0L JSM 30, Hitachi S 800), which utilized a specimen position below the final lens, specimen size had to be reduced but useful magnification could be impressively increased in both low (1-4 kV) and high (5-40 kV) voltage operation, i.e. from 50,000 to 200,000 and 250,000 to 1,000,000 x respectively.At high accelerating voltage and magnification, contrasts on biological specimens are well characterized1 and are produced by the entering probe electrons in the outmost surface layer within -vl nm depth. Backscattered electrons produce only a background signal. Under these conditions (FIG. 1) image quality is similar to conventional TEM (FIG. 2) and only limited at magnifications >1,000,000 x by probe size (0.5 nm) or non-localization effects (%0.5 nm).

A high-performance oil-free backing pump for electron microscopes

1978 ◽  
Vol 36 (1) ◽  
pp. 110-111
Author(s):  
G.K.W. Balkau ◽  
E. Bez ◽  
J.L. Farrant
Keyword(s):  
Molecular Weight ◽  
Electron Microscope ◽  
Hot Spots ◽  
High Performance ◽  
Carbonaceous Material ◽  
Contamination Rate ◽  
Low Molecular Weight ◽  
Principal Source ◽  
Rotary Pumps ◽  
Electron Microscopes

The earliest account of the contamination of electron microscope specimens by the deposition of carbonaceous material during electron irradiation was published in 1947 by Watson who was then working in Canada. It was soon established that this carbonaceous material is formed from organic vapours, and it is now recognized that the principal source is the oil-sealed rotary pumps which provide the backing vacuum. It has been shown that the organic vapours consist of low molecular weight fragments of oil molecules which have been degraded at hot spots produced by friction between the vanes and the surfaces on which they slide. As satisfactory oil-free pumps are unavailable, it is standard electron microscope practice to reduce the partial pressure of organic vapours in the microscope in the vicinity of the specimen by using liquid-nitrogen cooled anti-contamination devices. Traps of this type are sufficient to reduce the contamination rate to about 0.1 Å per min, which is tolerable for many investigations.

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