bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Influence of Intermetallic Compounds, (IMC), on High Speed Shear Testing with a Specific Interest in Electroless Palladium / Autocatalytic Gold
Authors: Nichols Richard John 
Published: September 2017

Increasing IO counts have led to ever increasing solder performance expectations. A predominant measure of solder joint integrity is gained through HSS testing. This article will statistically evaluate the solderability of final finishes after substrate and IMC ageing. Lead free solder balls will be used in this exercise to simulate lead free production. The finishes selected are: Immersion tin, Organic Surface Protection (OSP), Electroless Nickel/ Immersion Gold (ENIG), Electroless Nickel /Electroless Palladium and Immersion Gold (ENEPIG) and Electroless Palladium / semi Autocatalytic Gold (EPAG).
Where necessary, the adaptions of the final finishes will be included for testing. An example of this is ENEPIG with thin nickel. This is a measure to enable high frequency and or improve flexibility.
For the purpose of the paper, the evaluation will endeavor to relate HSS performance and physical and chemical characteristics of the related deposit layer. To ensure that a comparative analysis is possible, an “as received” (ASR) population will be used as a base line.
This fully data driven evaluation will aim to increase the understanding of key indicators that can ensure good quality soldering performance. In the field, there are assertions that the IMC is a good indicator of the solder joint integrity. However this is usually as far as this particular statement is taken. A key question that is still outstanding is what particular attribute of the IMC is important for solder joint reliability. The shape and size of the IMC is often cited as crucial to quality assurance. Such indicators may be valid but this study will couple this kind of observation with elemental quantification (EDX), high resolution microscopy and finally mechanical failure techniques.
A comprehensive test plan will be executed to more fully understand the role of IMC formation in terms of solder joint reliability, (SJR).
Advanced 3D eWLB-SiP (embedded Wafer Level Ball Grid Array – System in Package) Technology
Authors: Yoon Seung Wook 
Published: September 2017

FO-WLP (Fan-Out Wafer Level Packaging) has been established as one of the most versatile packaging technologies in the recent past and is already accounting for a market value of over 1 billion USD due to its unique advantages. The technology combines high performance, increased functionality with a high potential for heterogeneous integration and reduce the total form factor as well as cost-effectiveness.
The emerging of advanced of silicon node technology down to 10 nanometer (nm) in support of higher performance, bandwidth and better power efficiency in mobile products pushes the boundaries of emerging packaging technologies to smaller form-factor packaging designs with finer line/spacing as well as improved thermal electrical/performance and integration of SiP or 3D capabilities. Advanced eWLB FO-WLP technology provides a versatile platform for the semiconductor industry's technology evolution from single or multi-die 2D package designs to 2.5D interposers and 3D System-in-Package (SiP) configurations.
This paper reports developments that extend multi-die and 3D SiP applications with eWLB technology, including ultra thin devices or/and with an interposer substrate attachment. Test vehicles have been designed and fabricated to demonstrate and characterize integrated packaging solutions for network, mobile products including IoT and wearable electronics. The test vehicles have ranged from ~30mm2 to large sizes up to ~230mm2 and 0.4mm ball pitch. Assembly process details including 3D vertical interconnect, laser ablation, RDL processes and mechanical reliability characterizations are to be discussed with component and board level reliability results. In addition, warpage behavior and the PoP stacking process will also be presented. Innovative structure optimization that provides dual advantages of both height reduction and enhanced package reliability are reported. To enable higher interconnection density and signal routing, packages with multiple redistribution layers (RDL) and fine line/width spacing are fabricated and implemented on the eWLB platform. Successful reliability and electrical characterization results on multi-die and 3D eWLB-SiP configurations are reported as an enabling technology for highly integrated, miniaturized, low profile and cost effective solutions.
The high-resolution extraterrestrial solar spectrum (QASUMEFTS) determined from ground-based solar irradiance measurements
Authors: Gröbner Julian , Kröger Ingo , Egli Luca , Hülsen Gregor , Riechelmann Stefan , Sperfeld Peter 
Published: September 2017

Abstract. A high-resolution extraterrestrial solar spectrum has been determined from ground-based measurements of direct solar spectral irradiance (SSI) over the wavelength range from 300 to 500 nm using the Langley-plot technique. The measurements were obtained at the Izaña Atmospheric Research Centre from the Agencia Estatal de Meteorología, Tenerife, Spain, during the period 12 to 24 September 2016. This solar spectrum (QASUMEFTS) was combined from medium-resolution (bandpass of 0.86 nm) measurements of the QASUME (Quality Assurance of Spectral Ultraviolet Measurements in Europe) spectroradiometer in the wavelength range from 300 to 500 nm and high-resolution measurements (0.025 nm) from a Fourier transform spectroradiometer (FTS) over the wavelength range from 305 to 380 nm. The Kitt Peak solar flux atlas was used to extend this high-resolution solar spectrum to 500 nm. The expanded uncertainties of this solar spectrum are 2 % between 310 and 500 nm and 4 % at 300 nm. The comparison of this solar spectrum with solar spectra measured in space (top of the atmosphere) gave very good agreements in some cases, while in some other cases discrepancies of up to 5 % were observed. The QASUMEFTS solar spectrum represents a benchmark dataset with uncertainties lower than anything previously published. The metrological traceability of the measurements to the International System of Units (SI) is assured by an unbroken chain of calibrations leading to the primary spectral irradiance standard of the Physikalisch-Technische Bundesanstalt in Germany.
Observation of dominance of swells over wind seas in the coastal waters of the Gulf of Mannar, India
Authors: Amrutha M. M. , Sanil Kumar V. 
Published: September 2017

Abstract. Wind seas typically dominate over swell seas in coastal gulfs. Waves measured at a location having a water depth of 12 m in the near-shore waters of the Gulf of Mannar during a 1-year period (1 May 2015 to 30 April 2016) are used to examine the predominance of wind seas and swells through spectral characterization. The study shows that even though the location is in a gulf, the annual average value ( ∼  0.84 m) of the significant wave height in this area is comparable to that along the coastal waters of the Indian subcontinent, but the annual maximum value ( ∼  1.7 m) recorded is much less than that (3 to 5 m) observed in those regions. Also, large seasonal variations are not observed in the wave height. The waves of the study region are under the control of sea breeze, with the maximum in the late evening hours and the minimum in the early morning hours. A 5 % increase in the forcing wind field during the monsoon period improved the comparison statistics between the model wave height and the measured values. A total of 53 % of the surface height variance in the study area is a result of swells from the southeast and south, and the remainder are wind seas from the east and southeast.
Aanzetten tot verbetering van de opsporing
Authors: Kop N. , Klerks P. 
Published: September 2017

Criminal investigations, evaluation, police reform, innovation, generational change
The authors reflect on ‘Handelen naar waarheid’ (Acting on truth), an assessment of the state of criminal investigations in The Netherlands, which appeared in May 2016. This report, assigned by the police and public prosecution service and written by four inside experts, caused substantial turmoil in the police organization and beyond. The report addresses six domains: professionalism, attitude and behavior, direction and leadership, capacity for change, organizational structure and business management. The critical and transparent self-reflection by the police received praise from policymakers, journalists and academic observers. It also met with recognition and appreciation in the law enforcement community, in particular among investigators and prosecutors. In the wake of the report, a reform program was organized to modernize both the police and the prosecution service in order to increase the quality and effectiveness of their work. Such reform is deemed necessary because crime problems have become ever more complex and citizens increasingly organize their own (counter-)investigations. The authors conclude that in spite of many recent initiatives, truly innovative practices remain scarce. Also, the crucial ambitions to increase the educational level of investigators and the organizational culture are still far from realized.
De uitdagingen voor gebiedsgebonden politiezorg
Authors: Meurs T. , Kreulen B.J. 
Published: September 2017

The challenges for territorial police care: Ambiguous developments, pathways and new roads
This article focuses on the challenges facing Community Oriented Policing (COP) in an increasingly complex society. The authors describe how the Dutch police adresses this context through a new police organisation on a national basis, specified job protocols, intelligence led policing and higher educated specialists. Seeking for alternatives the authors argue that COP should be based on a problem centered approach which profits from the insights of local policemen and operational specialists. Adressing ambiguous problems will fail when only applying system logic. Instead, moral involvement and sensemaking are indispensable.
The distribution shifts of Pinus armandii and its response to temperature and precipitation in China
Authors: Zheng Xiaofeng , Gao Pengxiang , Zhang ShuoXin 
Published: September 2017

Background
The changing climate, particularly in regard to temperature and precipitation, is already affecting tree species’ distributions. Pinus armandii, which dominates on the Yungui Plateau and in the Qinba Mountains in China, is of economic, cultural and ecological value. We wish to test the correlations between the distribution shift of P. armandii and changing climate, and figure out how it tracks future climate change.

Methods
We sampled the surface soil at sites throughout the distribution of P. armandii to compare the relative abundance of pollen to the current percent cover of plant species. This was used to determine possible changes in the distribution P. armandii. Given the hilly terrain, elevation was considered together with temperature and precipitation as variables correlated with distribution shifts of P. armandii.

Results
We show that P. armandii is undergoing change in its geographic range, including retraction, a shift to more northern areas and from the upper high part of the mountains to a lower-altitude part in hilly areas. Temperature was the strongest correlate of this distribution shift. Elevation and precipitation were also both significantly correlated with distribution change of P. armandii, but to a lesser degree than temperature.

Conclusion
The geographic range of P. armandii has been gradually decreasing under the influence of climate change. This provides evidence of the effect of climate change on trees at the species level and suggests that at least some species will have a limited ability to track the changing climate.
Hidradenitis Suppurativa and Maternal and Offspring Outcomes
Authors: Li Kaiyang , Piguet Vincent , Croitoru David , Wei Shu Qin , Brousseau Émilie , O’Brien Elizabeth , Auger Nathalie 
Published: October 2024

ImportanceHidradenitis suppurativa (HS) is associated with morbidity in persons of reproductive age, but the effect on maternal and offspring outcomes is understudied.ObjectiveTo determine the association of HS with pregnancy outcomes and maternal and child morbidity in the long term.Design, Setting, and ParticipantsThis population-based longitudinal cohort study with up to 16 years of follow-up took place between 2006 and 2022 in Quebec, Canada. .ExposureMaternal HS.Main Outcomes and MeasuresOutcomes included hypertensive disorders of pregnancy, gestational diabetes, and other birth outcomes as well as the long-term risk of hospitalization up to 16 years after delivery. The study used adjusted log-binomial and Cox proportional hazards regression models to estimate the association between maternal HS and pregnancy outcomes or hospitalization following pregnancy. Outcomes in both mothers and offspring were assessed.ResultsThere were 1 324 488 deliveries during the study, including 1332 (0.1%) among mothers with HS. Compared with patients without HS, patients with HS had a greater risk of hypertensive disorders of pregnancy (risk ratio [RR], 1.55 [95% CI, 1.29-1.87]), gestational diabetes (RR, 1.61 [95% CI, 1.40-1.85]), and severe maternal morbidity (RR, 1.38 [95% CI, 1.03-1.84]). In neonates, maternal HS was associated with risk of preterm birth (RR, 1.28 [95% CI, 1.07-1.53]) and birth defects (RR, 1.29 [95% CI, 1.07-1.56]). In the long term, HS was associated with 2.29 times the risk of maternal hospitalization (95% CI, 2.07-2.55) and 1.31 times the risk of childhood hospitalization (95% CI, 1.18-1.45), including hospitalization for respiratory, metabolic, psychiatric, and immune-related morbidity over time.Conclusions and RelevanceThis cohort study found that HS is associated with adverse maternal and offspring outcomes in the peripartum period and in the long term. Early detection and management of HS may help mitigate these outcomes.
Failure to Rescue Female Patients Undergoing High-Risk Surgery
Authors: Wagner Catherine M. , Joynt Maddox Karen E. , Ailawadi Gorav , Ibrahim Andrew M. 
Published: October 2024

ImportanceFemale patients have higher mortality rates after high-risk surgery than male patients. It is unknown whether this mortality gap is due to different rates of postoperative complications or if complications are addressed differently by sex, causing complications to lead to death—so-called failure to rescue.ObjectiveTo evaluate sex differences in failure to rescue across high-risk surgical procedures.Design, Setting, and ParticipantsThis retrospective cohort study was conducted using data from Medicare beneficiaries from October 2015 to February 2020 who underwent high-risk vascular or cardiac surgical procedures, including abdominal aortic aneurysm repair, coronary artery bypass grafting, aortic valve replacement, and mitral valve replacement or repair. Data analysis was performed from August 2023 to March 2024.ExposuresThe primary exposure was patient sex.Main Outcomes and MeasuresThe primary outcomes were risk-adjusted rates of complications, 30-day mortality, and failure to rescue, which was defined as a death occurring after a serious complication. Categorical variables are presented as frequencies and proportions and compared using χ2 analysis. Continuous variables were tested for normality and compared using a t test.ResultsA total of 863 305 Medicare beneficiaries were included in this study cohort, of whom 304 176 (35.2%) were female. Mean (SD) age was slightly higher in female patients (74.8 [9.3] years) than male patients (73.4 [8.5] years), and female patients had more comorbidities than male patients (≥2 Elixhauser comorbidities, female: 262 809 [86.4%] vs male: 465 231 [83.2%]). Female patients were more likely to receive care at large hospitals and hospitals with a higher surgical case volume. Overall, female and male patients had similar rates of complications (female: 14.98% vs male: 14.37%; adjusted relative risk [aRR], 1.04; 95% CI, 1.03-1.05; P &amp;lt; .001). However, female patients had higher rates of 30-day mortality (female: 4.22% vs male: 3.34%; aRR, 1.26; 95% CI, 1.23-1.29; P &amp;lt; .001) and higher rates of failure to rescue (female: 10.71% vs male: 8.58%; aRR, 1.25; 95% CI, 1.22-1.28; P &amp;lt; .001). A similar pattern was observed when stratified by each procedure.Conclusions and RelevanceIn this cohort study among Medicare beneficiaries undergoing high-risk surgery, male and female patients experienced similar rates of serious complications, but female patients with complications were more likely to die. In other words, clinicians fail to rescue female patients with complications after high-risk surgery more often than male patients. Improving the recognition and management of female patients’ complications postoperatively may narrow the sex disparity after high-risk surgery.
First‐Principles Study of the Effects of High‐Order Anharmonicity on the Thermal Transport Properties and Thermoelectric Effects in the Lattice Dynamics of 12 New Full–Heusler Compounds X2YTe (X = Na, K, Rb, Cs; Y = Zn, Cd, Hg)
Authors: Wang Yue , Zhao Yinchang , Ni Jun , Dai Zhenhong 
Published: October 2024

AbstractIn this study, advanced first‐principles calculations combined with self‐consistent phonon theory and the Boltzmann transport equation are used to assess the thermoelectric properties of novel Full–Heusler materials X2YTe (X = Na, K, Rb, Cs; Y = Zn, Cd, Hg). These materials exhibit low formation energies, facilitating synthesis under standard conditions. This analysis showed that lattice anharmonicity increases with the atomic mass of X and decreases with the atomic mass of Y due to the rattling effect of Y atoms. Significant rattling effects are identified, prompting the inclusion of higher‐order anharmonic effects. By renormalizing the phonon spectrum and accounting for three‐phonon and four‐phonon scattering, the mechanisms behind the low lattice thermal conductivity in these compounds is uncovered. The combination of low lattice thermal conductivity and high power factors resulted in remarkable thermoelectric figure of merit values at optimal doping concentrations and temperatures. Notably, except for Na2ZnTe and Na2HgTe, all other materials surpassed the long‐standing figure of merit record of less than 3, with Rb2ZnTe achieving a figure of merit of 8.11 at 700 K with an n‐type doping concentration of 2 × 1019. The inclusion of spin‐orbit coupling led to less than a 10% reduction in the thermoelectric figure of merit, underscoring the superior thermoelectric performance of these materials.
Mutually Activated 2D Ti0.87O2/MXene Monolayers Through Electronic Compensation Effect as Highly Efficient Cathode Catalysts of Li–O2 Batteries
Authors: Zhang Dongmei , Zhang Guoliang , Liu Runbo , Yang Ruonan , Li Xia , Zhang Xiuqi , Yu Han , Zhang Pengxiang , Li Bao‐Wen , Hou Hua , Guo Zhanhu , Dang Feng 
Published: October 2024

Abstract2D materials exhibit remarkable electrochemical performance as the cathode catalyst in lithium–oxygen batteries (LOBs). Their catalytic capability mainly derives from their 2D surface with tunable surface chemistry and unique electronic states. Herein, Ti0.87O2 and Ti3C2 MXene monolayers are applied to construct a face/face 2D heterostructure to enhance the catalytic performance in LOBs. It is demonstrated that electronic compensation from the O‐terminated MXene to Ti0.87O2 side is achieved through the built‐in electric field and the overlap of Ti 3d and O 2p orbitals between Ti0.87O2 and MXene units. As a result, the ORR/OER catalytic activity is improved in Ti0.87O2/MXene heterojunction due to the modulated p‐band center that optimizes the s–p coupling with the key intermediate LiO2. The Ti0.87O2/MXene cathode presents a structural stability and long‐term cycling life of 425 cycles (2534 h) at 200 mA g−1 and 407 cycles at 1000 mA g−1 with a fixed capacity of 600 mAh g−1, being nearly five and three times higher than that of pure Ti0.87O2 and MXene cathodes, respectively.
Centimeter‐Scale and Honeycomb‐Like Bismuth Sulfide Film Composed of Triangular Structural Units for Flexible Photodetector
Authors: Rong Ping , Gao Shiyong , Li Lin , He Wen , Zhang Mingyi , Gao Qiong , Ren Shuai , Han Yajie , Jiao Shujie , Wang Jinzhong 
Published: October 2024

AbstractFilms with honeycomb‐like structures have became ideal network structures for the development of flexible photodetectors due to their superior mechanical stability and merits in large active surface area, high carrier transport efficiency and well light absorption capacity. In this work, a honeycomb‐like Bi2S3 film with centimeter‐scale (2 cm × 2 cm) is synthesized on an ultrathin flexible fluorophlogopite mica substrate, which consists of a well‐stabilized arrangement of triangular unit structures forming an interconnected network structure. Based on the as‐grown honeycomb‐like Bi2S3 film, a flexible photodetector with a broadband response from ultraviolet to infrared is constructed, which displays the highest responsivity (Rλ) of 611.2 mA W−1 and specific detectivity (D*) of 4.77 × 1010 Jones. And at 850 nm light illumination, there is nearly no deterioration in Rλ and D* of the Bi2S3 flexible photodetector after successive multiple bends, benefiting from the excellent structural stability of the triangular honeycomb network structure. Notably, the device maintains excellent detection performance after 1 week of prolonged bending in air without any encapsulation, and its photocurrent can still reach 90.39% of the initial photocurrent. In addition, the device also exhibits favorable durability, cycle stability, as well as high‐definition imaging ability in bending state and after bending recovery.
Functionalized Modification of Conjugated Porous Polymers for Full Reaction Photosynthesis of H2O2
Authors: Luo Xiaobo , Zhou Shiyuan , Zhou Sheng , Zhou Xinyu , Huang Jia , Liu Yingjie , Wang Danfeng , Liu Guangfeng , Gu Peiyang 
Published: October 2024

AbstractModulating the molecular structure to achieve the full reaction including oxygen reduction reaction and water oxidation reaction is a promising strategy for efficient photosynthesis of hydrogen peroxide (H2O2) but remains a challenge. Herein, a triphenylamine and naphthalimide‐based conjugated porous polymers are synthesized with photo oxidation‐reduction structures, then sulfonate (─SO3H) and quaternary ammonium groups are introduced via a post‐modification strategy to produce two photocatalysts named NI‐TPA‐NI‐SO3H and NI‐TPA‐NI‐N, respectively. Introducing charged functional groups has improved the hydrophilicity and oxygen (O2) adsorption, beyond that, the ─SO3H further stabilizes the adsorbed O2 via hydrogen bonding as well as accelerates the photogenerated carrier separation and electron/proton transport that enables full reaction photosynthesis of H2O2. Therefore, motivated by efficient charge separation, stabilized O2 adsorption, and boosted proton‐coupled electron transfer, NI‐TPA‐NI‐SO3H exhibits the highest light‐driven H2O2 production rate among the three photocatalysts, reaching 3.40 mmol g−1 h−1, which is 4.9‐fold of NI‐TPA‐NI. Remarkably, in the presence of ethylenediaminetetraacetic acid disodium salt, its rate significantly enhances to 14.5 mmol g−1 h−1, superior to most reported organic photocatalysts to the best of the knowledge.