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As electronic devices become lighter, thinner, shorter, and smaller, IC packages follow. Low-profile type packages are reduced in thickness, so the stiffness of thin type packages is weaker due to the thermo-mechanical effects of manufacturing processes, testing, and operations. Due to the different temperatures in those processes, and the differences in coefficient thermal expansion (CTE) of each...
This paper describes a novel compound Markov random field model capable of realistic modelling of multispectral bidirectional texture function, which is currently the most advanced representation of visual properties of surface materials. The proposed compound Markov random field model combines a non-parametric control random field with analytically solvable wide sense Markov representation for single...
In order to obtain some basic data for eco-toxicological tests, acute lethal toxicities of o-nitrochlorobenzene, m-nitrochlorobenzene and 2,4-dinitrotoluene in aquatic environment to Brocarded Carp were investigated. Brocarded Carp was employed and introduced into different test solutions contained three compounds. LC50 defined within 96 h was calculated by the mortality of fish using the Karbers...
Fiddlehead has been used in traditional Chinese medicine since Han Dynasty. However fiddlehead are still underutilized and hence wasted. In order to better utilize fiddlehead resources, the drug safety of benzene/alcohol extractives from fiddlehead were analyzed by GC/MS. Relative content of each component was determined by area normalization. The main ingredients of benzene/alcohol extractives of...
The assemblies “PoP” (Package-on-Package) can significantly increase the integration density of microelectronic circuits and systems, by vertically combining discrete semiconductor elements. Related to reliability especially migration phenomena, which are investigated here by simulation and measurements, become more important as the dimension of bumps decreases. To explore the influence of migration...
To study the material support system, build a simulate system is an efficient way. The complicity of the material support system is analyzed, the similarities and differences of the mission for materials, transport system, and support stations to carry out is proposed; then an element mission model for general use is constructed, based on which the multi-level mission model is set up and expressed;...
As Camphora essential oil has excellent antibacterial properties, studying camphora oil could provide a theoretical basis for the discovery and development a new high-performance and low toxicity of antimicrobial agents. According to the results of this study, the essential oil of Camphor wood has natural anti-bacterial function, it is bacteria suppression on Escherichia coli, Staphylococcus aureus,...
Conventional coagulation is not an effective treatment method to remove natural organic matter (NOM) and ammonia nitrogen (NH3-N) in water at low temperature. For this type of water, enhanced coagulation is currently proposed as one of the feasible treatment methods and is implemented by coagulant optimization based on raw water characteristics and the coagulant aids. NOM and NH3-N removal from Huaihe...
Wafer tool cleanliness specifications are generally accepted for various processes and technology nodes. However, the material and component cleanliness required to meet these wafer tool cleanliness is vague. One reason is the lack of uniformly accepted parts cleanliness tests. This paper reviews and recommends test methods for determining the cleanliness of coupons, first articles and production...
New thermoplastic insulating compounds, High Performance Thermoplastic Elastomer (HPTE), were developed in Prysmian and represent a breakthrough in the field of MV and HV power cables. These materials gather good electrical and thermomechanical properties, comparable or even superior to those of XLPE, and are flexible and soft even though polypropylene based. The physico-chemical properties of HPTE...
3D ICs is a promising new technology that has many advantages over traditional planar packages. To take advantage of this technology, new bonding techniques have to be developed to satisfy the need for high density micro interconnects. Solid liquid inter-diffusion bonding in which the bond is established by placing a low melting temperature material between high temperature melting substrate and applying...
Nowadays, endocrine disruptor compounds in the water system have become a concern due to the risk of contamination to wild life and humans even at the nanogram level. Excess estrogens and androgens are a major contributor group of endocrine compounds. Statistical surveys have shown that dairy farms contribute to over 90% of the total estrogens in the UK and US. An analytical system is being developed...
We developed a quantitative detection method that can reflect the degree of visceral cell oxidative DNA damage induced by exogenous compound exposures using 8-OHdG as a biomarker in vitro. In this study formaldehyde (FA) was used as a model exogenous compound and malondialdehyde (MDA) was used as a reference indicator. Rat liver cell suspension was applied in this in vitro exposure experiments as...
Rice is a whole grain finding applications in gourmet foods due to its nutritional value and unique taste. For food nurtrition and health concerns, the genotype of health benefits of whole grain consumption after storage should be comfirmed. However, little is known about its antioxidant properties and phytochemical components following storage. The objectives of this study were to evaluate totle...
The antioxidant content and activity, and antiproliferation activity of jujube fruit that were harvested at different harvest maturity and stored at 0 and 15°C for 15 d were studied. As fruit matured, except triterpenoid saponins, total phenolic and flavonoid concentrations of jujube were affected by harvest maturity, storage temperature and storage time very much. These antioxitant contents in fruit...
The oil-tea cake as the byproduct of tea-oil from oil-tea seed is still not top-valued used. In order to improve the processing status of oil-tea cake from low-grade to high-grade, we used 300°C pyrolysis- GC/MS technology to analyze the top value-added biomedical and bioactive constituents of two extracts (benzene/ethanol and acetone) of oil-tea cake. Relative content of each component was determined...
Laboratory experiments were employed to investigate the influencing factors of BTEX volatilization. Characteristic of BTEX compounds was critical factor of volatilization; the higher saturated vapor pressure, the greater volatilizing speed. Type and structure of underlying materials determined the volatilization kinetics mode, the influence of channel blocking and adsorption of soils was stronger...
In harsh environments, including high shock and vibration, magnetic devices such as transformer coils are potted to enhance thermal performance and provide mechanical protection. One potting compound frequently used is epoxy containing alumina particles. A nominally isotropic and uniform potting compound consisting of about 70 to 80% by volume 14-28 mesh (0.6 to 1.2 mm across) alumina granules in...
Recently, System in Package (SiP) technology is rapidly evolved from a narrow set of applications to high volume applications on electronics markets, like small modules for mobile phone applications. Embedding technology is one of the solutions by embedding one or more chips into another chip or a substrate. In this study, Wafer level embedded System in Package (WL-eSiP) which has daughter chip (small...
Few studies reported the antifeedant activity of Stellera chamejasme extracts against larvae of Plutella xylostella. Here, laboratory choice and no-choice test feeding studies were conducted to assess the antifeedant activity of methanol extracts of S. chamejasme against larvae of P. xylostella. S. chamejasme Extracts caused severe feeding deterrence by 2nd or 3rd instars larvae of P. xylostella in...
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