Heat Retention Research Articles

What Is the Relationship between Diabetic Patients and Greater Propensity to COVID-19?

Patients with diabetes are more likely to have COVID-19 as demonstrated in the article written by Abdi et al. (2020) entitled Diabetes and COVID-19: A systematic review on the current evidence [1]. But what is the real reason why diabetic patients being more likely to have COVID-19 than the hyperglycemia they present? In the article written by the author (2019) Why Are Diabetic Patients Still Having Hyperglycemia despite Diet Regulation, Antiglycemic Medication and Insulin? the author demonstrates through a case report, that diabetic patients have chakras’ energy deficiency, that is leading to alteration in the energy level, leading to Yin deficiency and Heat retention, that are two energy imbalances that is producing hyperglycemia according to traditional Chinese Medicine, in the root level of the tree [1, 2].

Thermoconductive n-alkane enables ultra-high shape/thermal stability, durability, and ambient thermal energy harvesting

Thermal energy storage using phase change materials (PCMs) has received significant attention in the field of sustainable energy development. However, extremely low thermal conductivity and seepage issues are two long-standing drawbacks limiting PCM-based applications. In this study, an alternative strategy is used to construct composite PCMs by introducing hybrid functional materials as support and liquid n-alkane as energy storage material through a facile vacuum impregnation method. The hybrid functional material, obtained from a commercially available natural mineral, montmorillonite (Mt), and boron nitride, possesses high specific surface area and physicochemical stability and can endow the n-dodecane (DA) with beneficial characteristics. Hybrid-functional-material-supported DA is suitable for ambient energy harvesting in the form of latent heat, with a 309% growth rate in energy storage capacity compared with that of Mt/DA. The thermal conductivity reached 0.795 W/m·K, which is 2.01 and 5.89 times higher than those of Mt/DA and pristine DA, respectively. In addition, the composite PCMs exhibited ultra-high leakage resistance at up to 120 °C owing to the presence of a favorable interconnected network structure, strong surface tension, and capillary forces. The materials also exhibited high durability after 50 thermal cycles with a high latent heat retention capacity (>98%). Because of such thermal properties, the application scope of composite PCMs can be extended to the development of various human comfort thermal management systems.

Study on Special Shaped Polyester Fibers and Development of Products

Non-circular profiled fibers are generally synthetic fibers that have a modified cross-section shape, which are created to mimic natural fibers or to obtain special properties. The shape of the cross-section has great influence on the properties of profiled polyester (PET) fibers and their fabrics. The structure and properties of flat-shaped and hexagonal-shaped profiled PET fibers and ordinary PET fibers, as well as the properties of their knit fabrics were characterized. Experimental results showed that air permeability, heat retention, and wrinkle resilience of profiled PET fabrics were better than that of circular a cross-section PET fiber fabric, while the circular cross-section PET fabric was softer than the profiled PET fiber fabrics.

Catalyst Modeling Challenges for Electrified Powertrains

To meet the upcoming CO2 reduction challenges, the further electrification of vehicle powertrains is indispensable. In combination with the post-Euro 6 requirements for criteria pollutants, the exhaust system is expected to be more complex to allow for extremely low emissions under all driving conditions, potentially involving technologies such as electrical heating and phase-change materials. The longer ‘zero-flow’ operation of the exhaust system in hybrid applications and the associated light-out risk have demanding accuracy requirements for heat loss calculations and require additional thermal management strategies. This paper discusses the additional challenges posed with regard to catalyst modeling in the boundary conditions of electrified vehicles and the necessary improvements that go beyond the state-of-the-art techniques. Most of the necessary improvements are linked to advanced 3D modeling of the exhaust system components accounting for free convection and radiative heat transfer. Modeling of electrically assisted heating is demonstrated using a new approach involving a combined 3D electrical–thermal solver. Heat retention technologies with use of phase-change materials are also accounted for in these new-generation models. Finally, the need for a tighter integration of these high-fidelity models into a vehicle simulation framework is discussed.

Evaluation of Building Energy Performance with Optimal Control of Movable Shading Device Integrated with PV System

Among the envelope components (e.g., walls, roofs, floors, and windows, etc.) affecting the cooling and heating load of buildings, windows are the most thermally vulnerable. Shading devices can minimize the thermal load on windows due to solar radiation and decrease radiation effects. However, the load changes due to convection and conduction should be considered. Therefore, when a shading device is applied to a window, control logic for thermal blocking and heat retention is necessary to prevent the load changes. In addition, by combining the opposite features of photovoltaic (PV) that require solar radiation and the shading device to block solar radiation, energy-saving and production can be achieved simultaneously. Therefore, this study minimized the thermal effects of windows using a movable shading device integrated with PV and evaluated the PV power generation. This study evaluated the effects on window heat transfer by applying artificial intelligence techniques, which have recently attracted attention, to system operation. To achieve this, artificial neural network (ANN)-based control logic was developed, and the control performance of the system was assessed using simulations. In ANN control, the window heat transfer was 86.3% lower in a cooling period and 9.7% lower in a heating period compared with that of a shading device fixed at 45°. Furthermore, the PV system produced 3.0 to 3.1% more electric power under optimal control during the cooling period.

Chakras’ and energies deficiencies in the geneses of breast cancer

Introduction: Breast cancer is the most common cancer-affecting women worldwide. Western current perspectives are starting to comprehend cancer as a systemic disease from the start. In TCM, the formation of cancer is associated energy deficiencies with Heat retention. Spleen deficiency is one of the major causes of formation of Phlegm leading to the formation of tumors. There are studies associating the five elements in TCM with chakras’ energy centers and measuring the chakra, the author will be measuring the internal massive organs energy. Purpose: To demonstrate that there is chakras’ energy deficiencies chronically present in the body of the patient with breast cancer. Also, to analyze the importance of treating the subject systemically, through the replenishment of chakras’ energy centers. Methods: two cases report, both were female patients (42 and 56years old), with the diagnosis stress and anxiety in the first and the second with diagnosis of sub retinal fluid retention, both patients with past history of breast cancer twenty and six years ago, removed with surgery. Chakras’ energy measurement through radiesthesia procedure was done. Results: all the chakras were in the lowest level of energy, rated in one out of eight. Conclusion: patients with history of breast cancer have chakras’ energy centers deficient in energy and the replenishment of these chakras is the major importance to prevent future formation of metastasis, new cancer in other sites or the formation of any chronic diseases.

Superelastic, lightweight, and flame-retardant 3D fibrous sponge fabricated by one-step electrospinning for heat retention

Health risks are more likely to occur in cold environments, making warm equipment highly in demand. Fluffy fibrous sponge obtained from direct electrospinning exhibited a great application prospect in heat retention fields but are often hampered by their weak mechanical stability and flammability used in high-temperature environments. How to create such materials having the robust mechanical property, flame retardancy and efficient thermal insulation simultaneously was a huge challenge. Herein, we report on a one-step method to manufacture superelastic and lightweight 3D fibrous sponge with antiflame function. The premise of this strategy is that polysulfone (PSU) can form a stable fluffy structure in a high-humidity environment, while polyurethane (PU) can absorb deformation energy caused by external forces. By adding OP-100A, the carbonization speed of PSU/PU fibrous sponge was increased and the antiflaming property was improved. Thanks to the polymer combination strategy, the fibrous sponge prepared has excellent tensile properties with the elongation at break reaching 160%, and unique elastic energy of compression with almost no plastic deformation after 100 compressions tests. Furthermore, the fibrous sponge also has obvious advantages in ultralight property, flame retardant property and heat retention property. The successful preparation of fibrous sponge opens a new way for the development of superelastic, lightweight, and flame-retardant heat retention materials.

Tumor necrosis factor α - induced protein3의 발현과 NF-κB 활성 억제를 통한 동과자의 염증반응 억제 효과

Donggwaja (Benincasae Semen), the seed of Benincasa hispida (Thunb.) Cogn., has been used in Korean traditional medicine to control the body heat and water retention caused by various diseases. Both the symptoms targeted by the herbal medicine in clinic and studies with disease mouse models support the potential anti-inflammatory effect of Donggwaja. However, it is less understood how Donggwaja exerts its possible anti-inflammatory effect. Here, we present evidence that Donggwaja suppresses macrophage inflammatory reactions via expressing tumor necrosis factor a-induced protein 3 (TNFAIP3 or A20) and suppressing NF-kB activity. The ethanol extract of Donggwaja (EED) showed no toxicity when added to RAW 264.7 cells less than 100mg/ml. When treating the cells for 16 h, EED significantly suppressed the nuclear localization of NF-kB, suggesting that EED suppresses NF-kB activity. Concordantly, a semi-quantitative RT-PCR analysis showed that EED decreased the expression of prototypic pro-inflammatory cytokines, such as tumor necrosis factor (TNF)-a, IL(interleukin)-6, and IL-1b. EED induced in RAW 264.7 cells the expression of A20, a ubiquitin modulator that suppresses inflammatory signaling cascades initiated from TLR4 and TNF and IL-1 receptors, while not affecting the induction of Nrf2, an anti-inflammatory factor that could suppress the effect of NF-kB. These results suggest that EED exerts its suppressive effect on inflammation, at least in part, by expressing anti-inflammatory factor A20 and suppressing pro-inflammatory factor NF-kB activity.

Energies Alterations and Chakras’ Energies Deficiencies in Patient with Ulcerative Colitis

Introduction Ulcerative Colitis (UC) is a chronic, idiopathic inflammatory disease that affects the colon, most commonly afflicting adults aged 30 years to 40 years, resulting in disability. It is characterized by relapsing and remitting mucosal inflammation, starting in the rectum and extending to proximal segments of the colon. In traditional Chinese medicine (TCM), the invasion of external pathogenic factors causing Damp-Cold and Damp-Heat, inadequate diet and violent emotions are the source of the disease. Purpose The aim of this study is to demonstrate that patients with ulcerative colitis have energies alterations and chakras’ energies deficiencies as underline causes. Methods A case report of a 32 years-old female patient with diagnosis of ulcerative colitis ten years ago (2010) and a very difficult childhood when her mother died before the disease began. The UC symptoms started with a bloated belly and excessive intestinal gas. She has been treated by proctologist doctor and was receiving Sulfasalazine medications but she was willing to have another type of treatment without using so many medications. She searched for traditional Chinese medicine treatment and the doctor did the diagnosis of Yin, Yang, Qi deficiency and Heat retention and was submitted to the radiesthesia procedure to see how her internal organs energy was. The result of this measurement was that all her six chakras were without energy (rated one out of eight) with the exception of the seventh chakra that was normal (rated in eight). The treatment consisted in Chinese dietary counseling, auricular acupuncture with apex ear bloodletting and replenishment the chakras energies using homeopathies according to Constitutional Homeopathy of the Five Elements Based on Traditional Chinese Medicine and crystal based medications. Results The patient showed a significant improvement after the treatment performed. Conclusion The conclusion of this study is that patients with ulcerative colitis have energies imbalances and chakras’ energies deficiencies as demonstrated in this case report. The corrections of these energies imbalances is important to treat the root of the problem that are the energies imbalances and chakras´energies deficiencies and not just the symptoms presented by the patient. Keywords: Ulcerative colitis; Energy; Chakras; Diet; Traditional Chinese medicine; Acupuncture; Homeopathy; Crystal-based medications.

Production processes and statistical analysis of ceramic liner-hole parameters for sustainability and improved thermal efficiency of clean biomass stoves

In engineering, ceramic liners are used as heat retention, insulation, and wear-resistant components for industrial and domestic applications. However, due to lack of production standards, particularly under small industrial operations, there is variation in liner-hole diameter and inter-hole spacing of liners used in clean biomass stoves. This study assessed the production processes and analysed ceramic liner-hole diameters and inter-hole spacings for standardisation. Standardising liner-hole parameters is a major process towards sustainability and improved efficiency. Methods employed were − material composition, particle size distribution analysis, study of production processes, and 51 liner-hole diameters and 66 inter-holes spacing were randomly sampled and analysed. The results indicated material composition of clay (70%), sand (23%), and sawdust (7%) of various particle sizes. A flow chart diagram of 7 production processes was created for standardisation. At 95% C.I, liner-hole diameter of Ø20.8 ± 2(0.66) mm and inter-hole spacing of 27.5 ± 2(1.06) mm were determined. Mean liner-hole diameter of Ø21.03 mm resulted in a relatively high thermal efficiency, ηT =37%. For practical applications, liner-hole diameter of Ø21 mm and inter-hole spacing of 30 mm are recommended. Standardising the production processes and the liner-hole parameters will contribute to sustainable production and thermal efficiency improvement.

Ceramic Material for Thermal Barrier Coatings in Compression Ignition Engine for its Performance Evaluation with Biodiesel

In the present investigation, a Dongfeng compression ignition (CI) engine powered by biodiesel and diesel fuel, and analysed to gauge performance when coupled with a Thermal Barrier Coating (TBC) coated combustion chamber. TBC in CI engine improves its thermal retention and enhances biodiesel usability, which has a higher flashpoint than diesel. Biodiesel extracted from non-edible Pongamia Pinnata seeds is blended with diesel in various ratios to prepare 20BD (20%Pongamia Biodiesel + 80%diesel), 50BD and 100BD blends for the experiment. The properties of these fuel blends were tested by following American Standard for Testing and Materials (ASTM) approved testing methods to check their suitability as fuel for the CI engine. The piston crown, cylinder liner, inlet, and exhaust valves surface coated with TBC. The TBC is composed of a bond coat applied on the substrate which needs to be thermally insulated and a topcoat of ceramic material over bond coat. The bond coat of NiCrAl (Nickel-Chromium-Aluminium) of thickness 1 mm and a 4 mm topcoat of Titanium dioxide (TiO2) coated using the plasma spray coating method. A comparative study between a coated and uncoated engine component with diesel and biodiesel blends to study performance effects. The results show that the CI engine with 20BD, consumed 10.6% lower fuel when used in a coated engine than in an uncoated engine. Brake thermal and mechanical efficiency with 20BD were increased by 4.7%, and 2.6% respectively in TBC sprayed CI engine at part load. The lower the heat loss to coolant from the engine, the lower the consumption of fuel. An increase in heat retention in the coated combustion chamber leads to a boost in fuel vaporisation and a shortening of physical ignition delay. Hence, the CI engine's modification to accommodate biodiesel with TBC has a net positive impact on fuel consumption and engine efficiency.

Evaluation of the Cooking Cultures and Practices in Rural Uganda

Many communities across the globe still practice poor cooking cultures as part of their well-being to prepare food and other heating activities. Such bad cooking practices are not environmentally friendly, are wasteful and have adverse health effects. This work presents the results of the survey that was conducted to establish the existing cooking practices commonly used in Uganda, identify the commonly used fuel during cooking, identify perceptions on improved cooking stoves (ICS), perceived preferences during cooking as well as identify whether users are aware of the health challenges due to poor cooking and describe community opinions of ICS for rural communities in Uganda. The interviews were conducted on household levels across all the regions covering Uganda’s major rural regions. It was observed that the largest population of rural Ugandans still use the 3 stone stove fire for cooking with a percentage of 53.5%, Charcoal stove, 27.3%, Improved cooking stove, 16.9%, Electric cookers,1.2%, LPG 0.7% and biogas 0.5% for the preparation of their various types of cooked foods while forest firewood is the commonly used biomass fuel for cooking with a percentage of 66.8% compared to Charcoal, Briquettes, Saw dust and others with a percentage of 27.1%, 0.7%, 0.7%, 1.1% respectively. This reveals the great majority of users whose life is at risk as 3 stone stoves are characterized by low efficiency and high smoke production which increases the health risks of the users as well as increase the risk of deforestation rates. Household cooks showed great willingness to pay for a novel stove type in all the 4 regions but from the survey data, it was indicated that the preferences varied from one region to another with a great majority preferring minimal smoke production with increased heat retention capacity. It was revealed that 91.4% of the interviewed households were aware of the health challenges due to poor cooking methods which they resolved by using open space during cooking. There was variation in the quantity of food cooked in a day, time spent on cooking and how often the cooking is done from one region to another due to the difference in economic activities as well as the different climate factors. While using cooking stoves, users preferred large cooking pot space with minimal smoke production and rapid heating. Such information can act as a basis for the design of an improved cooking stove for the rural Ugandan community as engineered products must be designed to suit the needs of the end-user.

Study of the effect of the introduction of the back yarn on two-layer knitted fabric’s physical and mechanical properties

In this research work, the physical and mechanical properties of 3 variants of jacquard knitted fabric obtained in order to increase the heat retention properties and increase the range of knitted fabrics by adding back yarn to the base of glad, rubber cuts in 20 grade double-needle jacquard knitting machine using local raw materials effectively The technological indicators were obtained experimentally and tabulated and recommendations for production sectors are given.

不同地膜覆盖对土壤温湿度及地膜力学特性的影响

The purpose of this research was to study heat and moisture retention and breaking force properties of different plastic mulches. The field experiments with different plastic mulches were carried. The results showed that, the fracture strength and the right-angle tear strength of reinforced mulch are superior to those of weather-resistant mulch and ordinary mulch. The soil moisture, humidity and daily mean temperature under plastic mulches were affected by the laying time at a 1% probability level. It was also found that the variety had no significant effect on daily mean temperature under plastic mulches. A strong correlation was found between breaking force and the laying time of plastic film. A multiple linear regression model was developed to determine the relationship between the heat and moisture retention properties and breaking force. The R2 values of three plastic mulch varieties regression model were 0.904, 0.913 and 0.931. The breaking force of reinforced mulch and weather-resistant mulch indicates that plastic mulch recovery should be conducted after autumn, before it is too weakened by exposure.

Experimental investigation on heat transfer characteristics of phase change composite for thermal energy storage system

A novel technology to produce a low-cost thermal energy storage system using composite phase change materials was presented in this paper. This article examines the enhancement of the charging and discharging rate of the phase change material (PCM). In this paper, paraffin was used as the PCM. The steatite powder was used as the additive material to enhance the thermal property of the PCM. Steatite powder was concentrated in the paraffin at three weight fractions of 10%, 20%, and 30%. The performance of the Paraffin/steatite composite was investigated using a horizontal latent heat energy storage system. The charging and discharging rate during the melting and solidification of the paraffin/steatite composite were studied in detail. From, the experimental analysis, it was observed that as the solidification rate of the PCM increases than the melting rate as the addition of steatite powder in the paraffin increases. This significant effect of increasing rate is mainly due to the property of the steatite material as it has a large latent heat retention rate. From the experimental investigation, it is observed that the solidification rate was improved by about 25%, 37% and 40% than the melting time by adding the low-cost steatite powder in the paraffin with weight fraction 10%, 20%, and 30% respectively. Hereby, this low-cost paraffin/steatite composite was best suited for heating storing applications like solar collector systems.

Flexible Heating and Heat Retention for Future Exhaust Gas Aftertreatment

Flexible Heating and Heat Retention for Future Exhaust Gas Aftertreatment

Chakras’ Energies Alterations in Patients with Chronic Gastritis

Introduction Gastritis is a general term for inflammation of the stomach. In traditional Chinese medicine (TCM), gastritis is a disharmony between Yin, Yang, Qi, Blood and Heat retention of Liver, Stomach, Spleen or other disharmonies. Purpose To demonstrate that gastritis has energies alterations and chakras’ energies deficiencies as the root of its problem. The correction and replenishment of the chakras’ energies meridians are the most important goals in patient’s recovery. Methods Two case reports. The first, a 34-year-old male patient with complaints of chronic fatigue and epigastric pain, not improving with any medication the doctors prescribed. The second patient was a 32-year-old female who started having pain on the stomach and a burning sensation, as well as strong headache since she was 16-years-old. She was diagnosed with reflux through an endoscopy and treatment was started lansoprazole and pantoprazole and diet for reflux. She performed this treatment for four years, with no success. Both patients did the chakras’ energies meridian measurement through radiesthesia procedure. The result was that six out of seven chakras’ were completely lack of energies rated one (the minimum level) out of eight (the normal level), with the exception of the seventh chakra that was normal. Both patients were treated with Chinese dietary counseling, auricular acupuncture with apex ear bloodletting, systemic acupuncture and replenishment of the chakras’ energies with homeopathic medication according to Constitutional Homeopathy of the Five Elements Based on Traditional Chinese Medicine and crystal based medications. Results Both patients recover from all their symptoms very fast, including the epygastric pain discomfort without the necessity of using any antacid and proton-pump inhibitors medications. Conclusion Gastritis has an energy alteration and chakras’ energies deficiencies as a root and the treatment of these energy imbalances and replenishment of this lack of energies is essential for the patient’s improvement in the deepest level, not only treating the symptom. Keywords: Gastritis; Energy; Chakra; Traditional Chinese Medicine; Homeopathy; Crystal-based medication.

Water/moisture vapor permeabilities and thermal wear comfort of the Coolmax®/bamboo/tencel included PET and PP composite yarns and their woven fabrics

This study examined the water and moisture vapor permeabilities and the heat retention rate related to the wear comfort of the woven fabrics made from different types of composite yarn, the sheath/core composite yarn structure and non-circular cross-section of the constituent filaments (Coolmax®) in the core region played a very important role with high fabric porosity by including a capillary absorption in the wicking property. The fabric structures with high porosity composed of Coolmax® sheath/core yarns, and spun yarns with non-circular cross-sectional fibers (Coolmax®) affected strongly the fast drying rate due to moisture vapor diffusion of composite yarn fabrics. The moisture vapor permeability of the composite yarn fabrics was highly dependent on the porosity in the sheath/core yarn structures, In addition, the heat retention rate of the composite yarn fabric was strongly influenced by the high porosity due to the sheath/core and bulky staple yarn structures as well as the low thermal conductivity of the constituent fibers.

BT-09 Anhidrosis in neurohypophyseal germinoma treated with CBDCA and VP-16

Introduction: Acquired generalized anhidrosis (AGA) is the disease with non-congenital, non-segmented diffuse sweating dysfunction and is associated with neurological signs and dysautonomia except for anhidrosis. Here we have experienced 2 cases of AGA in the patient with neurohypophyseal germinoma after carboplatin (CBDCA) plus etoposide (VP-16) (CARE) therapy. Relationship of AGA to neurohypophyseal germinomas and their treatment is discussed. Cases: We experienced two young (26 y/o and 27 y/o) female neurohypophyseal germinoma cases of anhidrosis. They received CARE as chemotherapy and whole ventricular irradiation. They showed heat retention 2 to 3 years after initial treatment without recurred germinoma. Because acetylcholine sweating test was negative and skin biopsy revealed normal sweat gland structure, the diagnosis of acquired idiopathic generalized anhidrosis (AIGA), idiopathic pure sudomotor failure subtype, was initially made. After steroid pulse therapy, sweat function recovered partially and completely. Discussion: AIGA and germinoma are both rare diseases. So, the present 2 cases have similar clinical settings, that anhidrosis may not be idiopathic but secondary. Affected responsible site of anhidrosis in the present cases is thought to be acetylcholine receptor in the sweat cells. The present cases did not have any known disease with anhidrosis and did not receive any medication which cause anhidrosis written in the statement of the virtues of a medicine. Commonly used drugs in both cases are infusion solutions, CARE and related drugs, hormone stimulating test agents. Recently anhidrosis is reported in a case of cancer of unknown primary tumor site after using CBDCA and PTX. Both of the present cases are used CBDCA, which may cause anhidrosis. Conclusion: CBDCA may attributed to the occurrence of AGA based on hypothalamic vulnerability.

Incidence of Unintentional Intraoperative Hypothermia in Pediatric Scoliosis Surgery and Associated Preoperative Risk Factors.

Introduction Intraoperative hypothermia is associated with perioperative complications such as blood loss and wound infection. Thus, perioperative heat retention methods to prevent perioperative hypothermia such as providing a warmed blanket and active patients' warming are important. Although major surgery and pediatric patient age are noted as risk factors, only a few studies focus on hypothermia as an intraoperative complication in pediatric scoliosis surgery. The aim of this study is to investigate the incidence of intraoperative hypothermia in pediatric scoliosis surgery and the associated preoperative risk factors. Methods We retrospectively reviewed the records of pediatric patients who underwent posterior spinal fusion at a single institution between 2015 and 2019. We recorded the background data, perioperative data, lowest recorded core temperature, and perioperative complications. Patients were divided into those whose temperature decreased below 36°C (Group H) and those who maintained a temperature of 36°C or greater (Group N) during surgery. We compared the two groups and performed multivariate analysis to identify preoperative risk factors for intraoperative hypothermia. Results A total of 103 patients underwent posterior spinal fusion; 56 for adolescent idiopathic scoliosis and 47 for neuromuscular scoliosis. Hypothermia was observed in 40 patients (38.8%). Group H had more non-adolescent idiopathic scoliosis (AIS) patients, lower mean body mass index, greater mean blood loss, greater number of fused vertebrae, larger preoperative Cobb angle, and lower initial core body temperature (immediately after induction of anesthesia). On multivariate analysis, a diagnosis of neuromuscular scoliosis, a lower body mass index, and a lower initial core body temperature were identified as independent risk factors for intraoperative hypothermia. Conclusions The incidence of hypothermia in pediatric posterior scoliosis surgery is 38.8%. Diagnosis of non-AIS, lower body mass index, and lower core body temperature at the time of anesthesia induction are preoperative risk factors for intraoperative hypothermia.