Large Component Research Articles

Economic Analysis of Seed Spice Cultivation in Gujarat, India

The present investigation was carried out to study the cost of cultivation and returns per hectare of major seed spices in Gujarat. The study was conducted at Banaskantha district for cumin and fennel as per the second highest triennium average area of cumin and fennel and at Junagadh district for coriander as it shows the highest triennium average area of coriander respectively during the year of 2023-24. In Gujarat for 2023-24, cumin cultivation incurred significant costs with hired labour as the largest component at 15.80 per cent, followed closely by family labour (15.65%) and rental value of owned land (13.44%). Fennel farms saw average costs of ₹70468.90 per hectare, peaking at ₹71356.01 on large farms and lowest at ₹67208.33 on small farms, with family labour (17.25%), irrigation (16.04%) and land rental (15.64%) as major expenses. Similarly, coriander farms had an average cost of ₹75939.26 per hectare, highest on large farms at ₹76551.63 and lowest on small farms at ₹74160.06, with rental value on owned land (18.95%), hired labour (16.35%), and family labour (11.74%) being significant costs. Costs increased with farm size across all crops. Cumin proved most profitable with an input-output ratio of 1:3.08, compared to fennel (1:1.48) and coriander (1:1.76) in the same period.

The economic burden of prostate cancer in Iran: a cross-sectional cost-of-illness study

ObjectiveThis study aims to assess the economic burden of prostate cancer in Iran by analyzing direct medical costs, direct non-medical costs, and indirect costs. We conducted a cross-sectional cost-of-illness study in Khorramabad, located in western Iran, during 2023, using a prevalence-based, bottom-up approach. Data were collected from 285 prostate cancer patients using questionnaires, interviews, and patient records.ResultsOur study estimated the economic burden of prostate cancer at $744,990. Direct medical costs accounted for 63.50% of this, totaling $153,330, with therapy being the largest component. Direct non-medical costs were $62,130, and indirect costs from productivity losses were $209,760. The calculated overall cost per patient was $2,614.88. Extrapolating from the 2021 Global Burden of Disease data, which reported approximately 83,000 prostate cancer patients in Iran, the national economic burden is estimated at $217,034,040. This substantial burden highlights the need for improved insurance coverage and early detection. The findings suggest that policymakers and healthcare providers in Iran should develop standardized cost analysis methods and enhance financial protection to alleviate economic strain and improve healthcare outcomes and sustainability.

The Economic Burden of Type 2 Diabetes Mellitus in Pakistan: A Cost of Illness Study.

Type 2 Diabetes Mellitus (T2DM) is a highly prevalent disease with a chronic nature and poses a significant health burden worldwide, with no exception in Pakistan. Hence, this study aimed to explore the financial burden of T2DM in Pakistan through cost of illness analysis. A prevalence-based, cross-sectional study was conducted using a structured data collection tool from the patient's perspective. Through structured interviews by trained data collectors, the data regarding direct medical costs, direct non-medical costs, and indirect costs were collected and further verified through prescriptions and bills. After testing the normality of data, mean and median with interquartile range were used to present cost data, while non-parametric tests, i.e., the Mann-Whitney U test and the Kruskal-Wallis test, were used to assess factors associated with costs, as cost data were not normally distributed. The study included 522 participants, with a majority being female (54%) and aged between 41 and 60 years (64%). The mean annual total cost per patient was USD 235.1 (median = USD 162.8), comprising direct medical costs, 93.2% (mean = USD 219.2; median = USD 150.0), direct non-medical costs, 5.3% (mean = USD 12.4; median = USD 7.1), and indirect costs, 1.5% (mean = USD 3.5; median = USD 1.9). Costs were significantly higher for patients with advanced age, high literacy, higher household incomes, duration of diabetes, more than one complication, and using combination therapy. The economic burden of T2DM in Pakistan is substantial, with medication costs being the largest component. Effective management strategies and policy interventions are crucial to mitigate this burden and improve the economic and health outcomes for diabetic patients.

Quality of Life and Burden of Moderate-to-Severe Atopic Dermatitis in Adult Patients Within the Asia-Pacific Region: A Cross-sectional Survey.

The burden of atopic dermatitis (AD) is significant, with a substantial impact on quality of life (QoL). This cross-sectional study aimed to ascertain the burden of AD, its impact on QoL, and associated costs. Patients with moderate-to-severe AD were enrolled from eight territories, namely Hong Kong, India, Japan, Mainland China, Singapore, South Korea, Taiwan, and Thailand. After screening was performed and informed consent was obtained, eligible participants were asked to provide responses on their AD symptoms, severity, treatment, and out-of-pocket costs via an online survey. QoL was assessed using EQ-5D-5L and Dermatology Life Quality Index (DLQI), while productivity loss was quantified using the Work Productivity and Activity Impairment (WPAI) questionnaire. Data from completed submissions were analyzed using descriptive statistics. The study was reviewed by the institutional review board in each territory. Median age of enrolled patients (N = 1103) was 41.0years (interquartile range, IQR 16.0). The majority of patients reported that their head/neck, trunk, upper limbs, and lower limbs were affected during a flare. Topical (74.2%) and oral steroids (58.7%) were frequently prescribed to manage AD. Common atopic comorbidities were allergic urticaria (64.2%), allergic rhinitis (61.8%), and allergic conjunctivitis (51.5%). Median DLQI score was 13.0 (IQR11.0), while median EQ-5D-5L (based on China value set) score was 0.8 (IQR0.4); 87.2% and 77.2% of patients reported pain/discomfort and anxiety/depression on the EQ-5D-5L domains, respectively. Median total annual costs associated with AD were USD10,128.52 (IQR12,963.26) per patient, with indirect costs being the largest component. Findings from WPAI indicated that presenteeism is a major contributor to productivity loss. This multinational survey study showed that AD is associated with substantial QoL impairment and economic burden among Asian adult patients with moderate-to-severe AD. To alleviate burden of AD, clinicians should be more proactive in managing other concomitant conditions including psychological issues, and advocate for increased reimbursement for AD treatments.

MTORC1 activation in presumed classical monocytes: observed correlation with human size variation and neuropsychiatric disease.

Gain of function disturbances in nutrient sensing are likely the largest component in human age-related disease. Mammalian target of rapamycin complex 1 (mTORC1) activity affects health span and longevity. The drugs ketamine and rapamycin are effective against chronic pain and depression, and both affect mTORC1 activity. Our objective was to measure phosphorylated p70S6K, a marker for mTORC1 activity, in individuals with psychiatric disease to determine whether phosphorylated p70S6K could predict medication response. Twenty-seven females provided blood samples in which p70S6K and phosphorylated p70S6K were analyzed. Chart review gathered biometric measurements, clinical phenotypes, and medication response. Questionnaires assessed anxiety, depression, autism traits, and mitochondrial dysfunction, to determine neuropsychiatric disease profiles. Univariate and multivariate statistical analyses were used to identify predictors of medication response. mTORC1 activity correlated highly with both classical biometrics (height, macrocephaly, pupil distance) and specific neuropsychiatric disease profiles (anxiety and autism). Across all cases, phosphorylated p70S6K was the best predictor for ketamine response, and also the best predictor for rapamycin response in a single instance. The data illustrate the importance of mTORC1 activity in both observable body structure and medication response. This report suggests that a simple assay may allow cost-effective prediction of medication response.

Controlling the asphaltene precipitation behaviors by changing the position and number of nitrogen in the aromatic heterocyclic pendant of polymers with the assistance of DFT calculations

AbstractAs the largest component in crude oil, asphaltenes are apt to settle out and result in the blockage of pipeline during production and transportation, which largely reduces the safety and economic benefits. In this study, a series of poly(maleic anhydride‐octadecene)s (PMO) amidated by pyrimidine (MD), pyrazine (BQ), pyrazole (BZ), triazole (3DZ), triazine (6J3Q), phenyl triazine (6B3Q) and pyrazolo pyridine (ZBD) were synthesized. The interaction energies between the different polymers and asphaltene were calculated by using density functional theory (DFT). It shows that the greater the number of nitrogen‐containing groups and rings, the higher the interaction energy. Moreover, the position of the nitrogen on the aromatic ring also impacts the interaction energy. The interaction energy between asphaltene and polymer with adjacent N (PMO‐BZ) is larger than that with para‐N (PMO‐BQ) and interstitial N (PMO‐MD). In addition, the performance of polymers on asphaltene precipitation from model oil and crude oil is explored by UV–Vis spectroscopy, turbidity, dynamic light scattering (DLS) and rheological methods. The performance of polymers follows the sequence of PMO‐BZ > PMO‐6J3Q > PMO‐BQ > PMO‐MD > PMO‐6B3Q > PMO‐ZBD, which is not consistent with the change of interaction energy. Apparently, the efficiency of the polymer increases and then declines with the increase of interaction energy. Notably, the polymer (PMO‐BZ) containing monocyclic ring with adjacent N increased the IPP of asphaltenes from 0.363 to 0.800 and reduced the particle size from 1527.2 to 99.7 nm. The interaction energies of PMO‐BZ and PMO‐6J3Q with asphaltene are in the range of 15.87–17.04 KJ/mol, and the polymers with interaction energies in this range are more effective on asphaltene inhibition than the others. Consequently, the interaction energies obtained from DFT calculations can be used to guide the design and synthesis of polymers with nitrogen‐containing heterocyclic pendant for asphaltene inhibition.

Corporate network formation in Kuwait: board interlocks network analysis using exponential random graph models

PurposeInterlocking directorates are a common phenomenon across several markets around the world. Yet, the institutional environment and the role of corporate elites in forming board networks promote some developing markets as a unique setting to understand the corporate boards network structure. This study aims to first explore the board directors’ network of all publicly listed companies in Kuwait. This paper then evaluates the effects of exogenous factors and endogenous network structural processes on the likelihood of board interlock.Design/methodology/approachThis study analyzes the interlocks network structures of 167 listed companies in 13 different market sectors in Kuwait relying on hand-collected directors’ data and using four measures of network centrality: betweenness, degree, closeness and eigenvector. The authors predict board interlocks using exponential random graph models (ERGM) and firm-level information from the Bloomberg database.FindingsThis study observes that both the firms and directors’ networks consist of 55 components, with the largest component containing about half of the total number of firms/directors. The firm’s network consists of one giant component of 85 firms, including all but one bank. This study shows the importance of endogenous network variables, such as the number of edges, centralization and triangles on the estimation of the factors that promote the board interlocks. Highly centralized firms are less likely to interlock with other firms, while two firms that are interlocked with a common third firm are more likely to interlock.Originality/valueThis paper is the first to analyze in-depth the structure of the directors network of companies in Kuwait. This study illustrates the complex map of interfirm and directors social networks in Kuwait. To the best of the authors’ knowledge, this study is among the first to exploit ERGM in the context of board interlocks to account for potential cross-dependencies and emergent network structures. Managers can identify the director interlock with other firms in the network and take advantage of the connection as a source of external knowledge and influence.

Lightweight Heat Pipe Radiator for Nuclear Reactor Power Systems on Lunar Surface

Heat rejection radiators of nuclear reactor power systems for space exploration and for planetary surface power are the largest component by volume and mass, depending on the radiator’s design and surface average temperature. This work developed designs for lightweight radiator modules for waste heat rejection on the lunar surface at a surface average temperature of 600 K. The modules each have a cesium (Cs)–titanium (Ti) heat pipe (HP) and highly oriented pyrolytic graphite (HOPG)/Ti heat spreading fins. The assembled panels of 10 Cs-HP modules hydraulically coupled in parallel are armored with carbon-carbon composite to protect against impacts by micrometeoroids and space debris for 10 years. The performance of the developed armored radiator panels is much superior to the current state of the art, with an areal density of 2.98 to 3.6 kg/m2, specific power of 3.36 to 3.98 kW/kg, rejected thermal power of 56.3 to 96.3 kW, and rejected power density of 7.56 kW/m2.

Experimental Behavior of a Steel Girder–Stringer–Floorbeam Bridge

The presented case study summarizes a quick-response project for the Tennessee Department of Transportation (TDOT), which focused on the steel-stringer behavior for a girder–stringer–floorbeam bridge. TDOT was confronted with relatively low stringer load ratings for many of their 31 similar structures. As a result, TDOT initiated this field study to ultimately produce refined load ratings. This information was then to be utilized for deciding whether an intervention (e.g., retrofit) was necessary. Diagnostic load testing was the approach selected and a representative bridge was chosen. Then load testing was comprehensively designed and executed. This included the installation of 42 strain gauges, data-acquisition quality-control testing, weighing and measuring test trucks, load testing of the structure, and then removal of the system. The load-test data provided insight into the true behavior of the bridge. The stringers were subjected to a combined interaction of the global and local response. Overall, the local demands were the largest component, but the magnitudes were well below the predicted values. This was partly because of the lateral distribution of the load. Additionally, partial composite action was identified between the steel stringers and concrete slab. Refined load ratings were calculated using the field-measured data and following the AASHTO Manual for Bridge Evaluation. The comparison of predicted to measured responses clearly indicated the conservative nature of the prior analytical calculations. The stringer load ratings were increased by 68% based on the field testing. In the end, the steel-stringer load ratings were sufficient, with no intervention necessary.

Does the Operation of a Reservoir Alter Its Interactions with the Atmosphere? Investigating the Role of Advective Fluxes on Energy and Hydrological Balances of the Romaine-2 Subarctic Hydropower Reservoir

Abstract The hydrological processes of cascading hydroelectric reservoirs differ from those of lakes, due to the importance of the inflows and outflows that vary with energy demand. These heat and water advection terms are rarely considered in water body energy balance analyses even though reservoirs are common man-made structures, especially in North America, and thus may affect the regional climate. This study provides a comprehensive assessment of the water and energy balance of the 85-km2 Romaine-2 northern reservoir (50.69°N, 63.24°W), mean depth of 44 m, highlighting the significant contribution of the advection heat fluxes. The water balance input was primarily controlled by upstream (turbine) inflows (77.6%), while lateral (natural) inflows and direct precipitation represented 21.2% and 1.2%, respectively. As for the reservoir’s heat budget, the net advection of heat accounted on average for 25.0% of the input, of which net radiation was the largest component (73.3%). After accounting for the absence of energy balance closure, latent heat and sensible heat fluxes represented 73.2% and 25.1% of total energy output from the reservoir, respectively. The thermal regime was influenced by the hydrological flow conditions, which were regulated by reservoir management. This played a major role in the evolution of the thermocline and the temperature of the epilimnion, and ultimately, in the dynamics of the turbulent heat fluxes. This study suggests that the heat advection term represents a large fraction of the heat budget of northern reservoirs and should be properly considered.

Analisis Kinerja Pengolahan Biogas di PT. Mitra Puding Mas Kecamatan Putri Hijau Kabupaten Bengkulu Utara Provinsi Bengkulu

PT. Mitra Puding Mas is one of the oil palm fruit processing factories in Bengkulu Province. POME palm oil mill effluent is the largest waste generated from the palm oil production process. The largest components contained in biogas are CH4 (50 % – 75 %) and CO2 (24% - 45 %) as well as several percent, nitrogen and hydrogen sulfide. The purpose of this study was to determine the composition of biogas CH4, O2, CO2 and H2S as well as the factors that affect the performance of biogas processing production at PT Mitra Puding Mas. Processing performance was obtained by using secondary data collection methods and literature study, while the factors influencing performance were obtained through interviews and observations. The results of the analysis of the performance of the biogas processing process, CH4 (53.6%), CO2 (36.18%), O2 (1.14%) and H2S (1.92 ppm) were categorized according to the standard composition of biogas liquid waste from palm oil. Factors that affect the performance of biogas processing are categorized very well, in the human aspect, namely the employees are skilled and expert in biogas management, in the raw material aspect, namely the use of palm oil or POME liquid waste as biogas raw material, in the method aspect, namely work instructions according to the SOP before and during the production process; on the machine aspect that is always checked regularly or periodically to avoid damage.

Inflationsberechnung: Zinspolitik der EZB wird als Inflationstreiber statistisch nicht erfasst

Abstract After ten consecutive increases in the prime rate by the European Central Bank’s (ECB), the question arises: What significance do these measures have, both indirectly for the interest rates increased at all value-added levels on the corporate side, and for households? While the prices for rents, being the largest component, are factored into inflation calculations, the dramatically increased interest rates for real estate loans – specifically for owner-occupied housing – are not considered at all. In this article, an extension of the calculation scheme is demonstrated to make transparent the direct effect of the prime rate increase on real estate owners’ expenses.

Unveiling the Full Picture: Advanced Scanning Procedure for Complete Large Component Scans via Twin Robotic Computed Tomography

Unveiling the Full Picture: Advanced Scanning Procedure for Complete Large Component Scans via Twin Robotic Computed Tomography

Biphasic papillary (biphasic squamoid alveolar) renal cell carcinoma: a clinicopathologic and molecular study of 17 renal cell carcinomas including 10 papillary adenomas.

Biphasic papillary renal cell carcinoma (synonymous with biphasic squamoid alveolar renal cell carcinoma) is considered within the spectrum of papillary renal cell carcinoma (PRCC). With < 70 reported cases of biphasic PRCC, there is limited data on the pathologic spectrum and clinical course. Seventeen biphasic PRCC cases and 10 papillary adenomas with similar biphasic morphology were assessed. The mean age of the biphasic PRCC patients was 62years (male to female ratio of 1.8:1), from 10 partial nephrectomies, 6 radical nephrectomies, and 1 biopsy. The mean tumor size was 3.6cm (range 1.6-8cm), with 24% showing multifocality. Fifteen out of 17 cases were limited to the kidney (one of which was staged as pT2a but had lung metastases at diagnosis) and 2/17 cases were staged as T3a. All tumors showed typical biphasic morphology with an extent of squamoid foci widely variable from 10 to 95%. Emperipolesis was identified in 88% of cases. All biphasic PRCC tested exhibited positivity for PAX8 (16/16), keratin 7 (17/17), EMA (15/15), AMACR (17/17), and vimentin (12/12) in both large and small cells; cyclin D1 was only expressed in the large cells (16/16). The 10 papillary adenomas showed a similar immunoprofile to biphasic PRCC. NGS testing performed on 13 biphasic PRCC revealed 4 (31%) harboring MET SNVs. In 1/5 (20%) papillary adenomas, a pathogenic MET SNV was identified. Biphasic PRCC is rare with a generally similar immunoprofile to "type 1" PRCC but with notable strong positivity for cyclin D1 in the large cell component. Although most of the biphasic PRCC cases were of small size, low stage, and with an indolent behavior, one patient had metastatic disease and one patient died of the disease.

The invisible black widow PSR J1720-0534: implications for the electron density towards the North Polar Spur

Abstract Radio emission from pulsars can be used to map out their distances through dispersion measure (DM), which quantifies the amount of radio pulse dispersion. However, this method relies on accurately modeling the free electron density in the line of sight. Here, we present a detailed study of the multi-wavelength emission from PSR J1720-0534, a black widow compact binary millisecond pulsar discovered in 2021, which the latest electron density model of the Galaxy (YMW16; Yao et al. 2017) places at only 191 pc. We obtained and analyzed deep multi-wavelength observations in the γ-ray (Fermi-LAT, 2008-2022), optical (LCO, 2.7-h), near-infrared (NOT, 3.5-h) and X-ray (Swift-XRT, 10 ksec) bands. We found no significant detection of γ-ray, optical, near-infrared, or X-ray counterparts around the radio-timing position of PSR J1720-0534, which we thus nickname ‘the invisible black widow’. Employing the most constraining near-infrared limit (J &amp;gt; 23.4 mag), we established a lower limit on the source distance, d &amp;gt; 1.1 kpc, assuming conservative properties for the black widow companion star. This distance lower limit differs drastically (by a factor of more than five) from the YMW16 DM distance estimate. We attribute this difference to the inclusion in the YMW16 model of a large and dense component towards the North Polar Spur. Considering our results and recent parallax distances to other pulsars in this direction, we argue that such a local and large component in the electron density model of the Galaxy is unnecessary.

An integrative data-centric approach to derivation and characterization of an adverse outcome pathway network for cadmium-induced toxicity

Cadmium is a prominent toxic heavy metal that contaminates both terrestrial and aquatic environments. Owing to its high biological half-life and low excretion rates, cadmium causes a variety of adverse biological outcomes. Adverse outcome pathway (AOP) networks were envisioned to systematically capture toxicological information to enable risk assessment and chemical regulation. Here, we leveraged AOP-Wiki and integrated heterogeneous data from four other exposome-relevant resources to build the first AOP network relevant for inorganic cadmium-induced toxicity. From AOP-Wiki, we filtered 309 high confidence AOPs, identified 312 key events (KEs) associated with inorganic cadmium from five exposome-relevant databases using a data-centric approach, and thereafter, curated 30 cadmium relevant AOPs (cadmium-AOPs). By constructing the undirected AOP network, we identified a large connected component of 18 cadmium-AOPs. Further, we analyzed the directed network of 59 KEs and 82 key event relationships (KERs) in the largest component using graph-theoretic approaches. Subsequently, we mined published literature using artificial intelligence-based tools to provide auxiliary evidence of cadmium association for all KEs in the largest component. Finally, we performed case studies to verify the rationality of cadmium-induced toxicity in humans and aquatic species. Overall, cadmium-AOP network constructed in this study will aid ongoing research in systems toxicology and chemical exposome.

KASTURI ORANGE PEEL (CITRUS MICROCARPA BUNGE) ESSENTIAL OIL: CHEMICAL PROFILE, FORMULATION AS ROLL-ON AROMATHERAPY AND ITS EVALUATION

Objective: Kasturi orange (Citrus microcarpa Bunge) is widely cultivated and consumed in Indonesia. The fruit's flesh is a good source of vitamin C. Essential oil of kasturi orange peel is one of the ingredients used as a raw material for aromatherapy roll-on preparations. Roll-on aromatherapy is currently widely used by various age groups. This research aims to determine the content of kasturi oil, its formulation as a roll-on aromatherapy preparation, and its physical evaluation.&#x0D; Methods: The essential oil of kasturi orange peel was extracted using the distillation method, and then the physicochemical properties were examined. The chemical content of the oil was analyzed using GC-MS. The roll-on aromatherapy preparation formulas were made by varying concentrations of kasturi oil, F0 (0%), F1 (4%), F2 (6%), and F3 (10%). Additional substances used were menthol, camphor, patchouli oil, and virgin coconut oil. Patchouli oil was used in this preparation to make the aroma last longer. Evaluation of roll-on aromatherapy preparations includes organoleptic tests, pH tests, specific gravity, viscosity, clarity, and stability.&#x0D; Results: From the extraction results, the percentage yield of essential kasturi oil was 0.55% v/w, with a density of 0.85 g/ml and a refractive index of 1.469. From the chromatogram results, there were 18 compounds in kasturi oil; the largest component was D-limonene (32.59%). Physical evaluation results of all roll-on aromatherapy formulas had met the requirements.&#x0D; Conclusion: From the chromatogram results, there were 18 compounds in kasturi oil, with the largest component were D-limonene (32.59%). Formula F3 had the best aroma intensity, approximately for 5 h, with a slightly strong aroma, and physical evaluation results of all roll-on aromatherapy formulas had met the requirements.

Contribution of gas concentration and transfer velocity to CO2 flux variability in northern lakes

AbstractThe CO2 flux () from lakes to the atmosphere is a large component of the global carbon cycle and depends on the air–water CO2 concentration gradient (ΔCO2) and the gas transfer velocity (k). Both ΔCO2 and k can vary on multiple timescales and understanding their contributions to is important for explaining variability in fluxes and developing optimal sampling designs. We measured and ΔCO2 and derived k for one full ice‐free period in 18 lakes using floating chambers and estimated the contributions of ΔCO2 and k to variability. Generally, k contributed more than ΔCO2 to short‐term (1–9 d) variability. With increased temporal period, the contribution of k to variability decreased, and in some lakes resulted in ΔCO2 contributing more than k to variability over the full ice‐free period. Increased contribution of ΔCO2 to variability over time occurred across all lakes but was most apparent in large‐volume southern‐boreal lakes and in deeper (&gt; 2 m) parts of lakes, whereas k was linked to variability in shallow waters. Accordingly, knowing the variability of both k and ΔCO2 over time and space is needed for accurate modeling of from these variables. We conclude that priority in assessments should be given to direct measurements of at multiple sites when possible, or otherwise from spatially distributed measurements of ΔCO2 combined with k‐models that incorporate spatial variability of lake thermal structure and meteorology.

Study on the Optimization of Heat Transfer Coefficient of a Rare Earth Wrought Magnesium Alloy in Residual Stress Analysis

To investigate the heat transfer coefficient (HTC) of a newly developed rare-earth wrought magnesium alloy under different cooling rates, the experiment of solution treatment followed by water quenching or air cooling process was carried out for calculation by lumped capacitance method (LCM) and optimized by inverse heat transfer method (IHTM), and cooling temperature curves were simulated afterward. In water quenching, the larger the temperature difference between the sample and water, the larger the maximum HTC, and the earlier it reached the maximum value, and in air cooling the HTC became larger with the airflow speeds increased. In LCM, the peak values of the HTC were 2840 W/(m2·°C) in water quenching and 54 W/(m2·°C) in air cooling. The corresponding HTC was 2388 W/(m2·°C) in IHTM. The maximum absolute average relative error (AARE) of temperature simulation in water quenching decreased from 8.46% in LCM to 2.45% in IHTM. The residual stress(RS) of a large conical component was simulated using both non-optimized and optimized HTC, the RS in the IHTM was ~30 MPa smaller than that in the ILCM, because the corresponding HTC was smaller, and the comparison of the simulation results with the measurements revealed that the RS using HTC in the IHTM is more accurate.

Land sparing outperforms land sharing for Amazonian bird communities regardless of surrounding landscape context

AbstractTwo strategies are central to the debate regarding agricultural development: one integrates farming and conservation (land sharing), and the other separates farming and conservation, intensifying production to allow the offset of natural habitat (land sparing). The role of wildlife‐friendly habitat in the wider surrounding landscape (landscape wildlife friendliness (WF)) in promoting farmland diversity is potentially an unexplored benefit of land sharing.We sampled birds across primary forests and cattle pastures in the western Amazon, where terrestrial biodiversity peaks. We tested the hypothesis that increased landscape WF will lead to increased species richness (SR) on farmland, even at low levels of ‘on‐farm’ wildlife‐friendly habitat (farm WF).We show that while there is a minor increase in SR linked to increased levels of landscape WF, a large component of the avian community is functionally absent. Most forest‐dependent species are missing from pasture, even at high levels of farm WF. For these species, the preservation of blocks of contiguous forest under land sparing is vastly superior.We modelled both strategies under different levels of production. Land sparing always retained significantly higher SR than land sharing, regardless of the level of landscape WF.Synthesis and applications. Landscape wildlife friendliness (WF) provided through land sharing is of limited benefit to many tropical forest‐dependent species that are unable to move across or utilise pasture, even at high levels of farm and landscape WF. To ensure the persistence of these species, policymakers should urgently implement sustainable intensification mechanisms to increase farmland productivity while enabling the protection of large blocks of spared natural habitat.